diff --git a/arch/nios2nommu/ChangeLog b/arch/nios2nommu/ChangeLog new file mode 100644 index 0000000..039c010 --- /dev/null +++ b/arch/nios2nommu/ChangeLog @@ -0,0 +1,4 @@ +2004-06-15 Ken Hill + + * Kconfig: Add Microtronix uKit support. + diff --git a/arch/nios2nommu/Kconfig b/arch/nios2nommu/Kconfig new file mode 100644 index 0000000..525c77b --- /dev/null +++ b/arch/nios2nommu/Kconfig @@ -0,0 +1,403 @@ +# +# For a description of the syntax of this configuration file, +# see the Configure script. +# +mainmenu 'uClinux/Nios2 (w/o MMU) Kernel Configuration' + +config MMU + bool + default n + +config FPU + bool + default n + +config ZONE_DMA + bool + default y + +config UID16 + bool + default y + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + bool + default n + +config GENERIC_FIND_NEXT_BIT + bool + default y + +config GENERIC_HWEIGHT + bool + default y + +config GENERIC_CALIBRATE_DELAY + bool + default y + +source "init/Kconfig" + +menu "Processor type and features" + +comment 'Platform dependant setup' + +choice + prompt "CPU" + default NIOS2 + +config NIOS2 + bool "NIOS2" + help + Altera Nios2 softcore processor. + +endchoice + +choice + prompt "Platform" + default ALTERA_STRATIX + +config MICROTRONIX_UKIT + bool "Microtronix uKit board support" + depends on NIOS2 + help + Support for the Microtronix uKit development board. Includes support + for Sodimm SDRAM/FLASH, soft ethernet MAC & PHY. + +config MICROTRONIX_STRATIX + bool "Microtronix Stratix board support" + depends on NIOS2 + help + Support for the Microtronix Stratix board. Includes support + for Sodimm SDRAM/FLASH, soft ethernet MAC & PHY, USB, LVDS + & analog/digital converters. + +config MICROTRONIX_CYCLONE + bool "Microtronix Cyclone board support" + depends on NIOS2 + help + Support for the Microtronix Cyclone board. Includes support + for SDRAM, FLASH, soft ethernet MAC & PHY, USB, + & analog/digital converters. + +config MICROTRONIX_PSK + bool "Microtronix PSK (Product Starter Kit) support" + depends on NIOS2 + help + Support for the Microtronix PSK (Product Starter Kit), which + features firefly module (EP1C4 or EP1C12). Includes support + for SDRAM, FLASH, and a variety of product expansion kits such + as USB, Ethernet etc. + +config ALTERA_STRATIX + bool "Altera Stratix Development board support" + depends on NIOS2 + help + Support for the Altera Stratix Development board. Includes + support for 10/100 ethernet, FLASH, SDRAM, compact flash. + +config ALTERA_STRATIX_PRO + bool "Altera Stratix Pro Development board support" + depends on NIOS2 + help + Support for the Altera Stratix 1s40 Development board. Includes + support for 10/100 ethernet, FLASH, SDRAM, compact flash. + +config ALTERA_STRATIX_II + bool "Altera Stratix II Development board support" + depends on NIOS2 + help + Support for the Altera Stratix II Development board. Includes + support for 10/100 ethernet, FLASH, SDRAM, compact flash. + +config ALTERA_CYCLONE + bool "Altera Cyclone Development board support" + depends on NIOS2 + help + Support for the Altera Cyclone Development board. Includes + support for 10/100 ethernet, FLASH, SDRAM, compact flash. + +config ALTERA_CYCLONE_1C12_EVAL + bool "Altera Cyclone 1C12 Evaluation board support" + depends on NIOS2 + help + Support for the Altera Cyclone 1C12 Evaluation board (with the + embedded processor module). + +config ALTERA_DE2 + bool "Altera DE2 Development board support" + depends on NIOS2 + help + Support for the Altera Cyclone Development board. Includes + support for 10/100 ethernet, FLASH, SDRAM, VGA, I2C. + +endchoice + +choice + prompt "Nios II Hardware Multiply Support" + default NIOS2_HW_MULX + help + This option enables various assembler instructions based on your + selection. The choice depends on what target hardware you'll be + running your applications on. The default is + "Enable mulx instruction". + + Here is an explanation of each option: + None = -mno-hw-mul -mno-hw-mulx + (no mul or mulx instructions used) + Enable mul instruction = -mhw-mul -mno-hw-mulx + (use mul instructions) + Enable mul and mulx instructions = -mhw-mul -mhw-mulx + (use mul and mulx instructions) + + If you don't know what to choose, select "Enable mulx instruction". + +config NIOS2_HW_MUL_OFF + bool "None" + +config NIOS2_HW_MUL + bool "Enable mul instruction" + +config NIOS2_HW_MULX + bool "Enable mul and mulx instructions" + +endchoice + +comment 'Platform drivers Options' + +config AVALON_DMA + bool "Support of DMA controller with Avalon interface" + default y + help + This enables support of Altera's DMA controller with Avalon + interface, so that drivers of DMA-able device can use this + interface. + +config PIO_DEVICES + bool "Enable leds, seven segment display" + default y + depends on (ALTERA_STRATIX || ALTERA_STRATIX_PRO || ALTERA_CYCLONE) + help + This enables example code to support leds, and seven segment + display as PIO devices. Once enabled, the kernel will show a + counter (increas once a second) on these devices. + +source "arch/nios2nommu/drivers/Kconfig" + +comment 'Miscellaneous Options' + +config EXCALIBUR + bool + default y + depends on (NIOS2) + +config BREAK_ON_START + bool "Include breakpoint trap on kernel startup" + help + Configures the kernel to trap to the GDB client on startup + before the kernel starts initialization. This allows you to + debug the kernel startup. + +config LARGE_ALLOCS + bool "Allow allocating large blocks (> 1MB) of memory" + help + Allow the slab memory allocator to keep chains for very large + memory sizes - upto 32MB. You may need this if your system has + a lot of RAM, and you need to able to allocate very large + contiguous chunks. If unsure, say N. + +choice + prompt "Kernel executes from" + ---help--- + Choose the memory type that the kernel will be running in. + +config RAMKERNEL + bool "RAM" + help + The kernel will be resident in RAM when running. + +#config ROMKERNEL +# bool "ROM" +# help +# The kernel will be resident in FLASH/ROM when running. + +#config HIMEMKERNEL +# bool "HIMEM" +# help +# The kernel will be resident in high memory when running. + +endchoice + +config PREEMPT + bool "Preemptible Kernel" + help + This option reduces the latency of the kernel when reacting to + real-time or interactive events by allowing a low priority process to + be preempted even if it is in kernel mode executing a system call. + This allows applications to run more reliably even when the system is + under load. + + Say Y here if you are building a kernel for a desktop, embedded + or real-time system. Say N if you are unsure. + +config PREEMPT_TIMES + bool "Collect preemption latency times" + depends on PREEMPT + help + Allow collection for preemption latency times. + +config CMDLINE + string "Default kernel command string" + default "CONSOLE=/dev/ttyS0 root=/dev/rom0 ro" + help + On some architectures, there is currently no way + for the boot loader to pass arguments to the kernel. For these + architectures, you should supply some command-line options at build + time by entering them here. As a minimum, you should specify the + memory size and the root device (e.g., mem=64M root=/dev/nfs). + +config PASS_CMDLINE + bool "Passed kernel command line from u-boot" + default n + help + Use bootargs env variable from u-boot for kernel command line. + will override "Default kernel command string". + Say N if you are unsure. + +source "mm/Kconfig" + +config BOOT_LINK_OFFSET + hex "Link address offset for booting" + default "0x00800000" + help + This option allows you to set the link address offset of the zImage. + This can be useful if you are on a board which has a small amount of + memory. + +endmenu + +menu "Bus options (PCI, PCMCIA, EISA, MCA, ISA)" + +config PCI + bool "PCI support" + help + Support for PCI bus. + +source "drivers/pci/Kconfig" + +config HOTPLUG + bool "Support for hot-pluggable device" + ---help--- + Say Y here if you want to plug devices into your computer while + the system is running, and be able to use them quickly. In many + cases, the devices can likewise be unplugged at any time too. + + One well known example of this is PCMCIA- or PC-cards, credit-card + size devices such as network cards, modems or hard drives which are + plugged into slots found on all modern laptop computers. Another + example, used on modern desktops as well as laptops, is USB. + + Enable HOTPLUG and KMOD, and build a modular kernel. Get agent + software (at ) and install it. + Then your kernel will automatically call out to a user mode "policy + agent" (/sbin/hotplug) to load modules and set up software needed + to use devices as you hotplug them. + +source "drivers/pcmcia/Kconfig" + +source "drivers/pci/hotplug/Kconfig" + +endmenu + +menu "Executable file formats" + +config KCORE_AOUT + bool + default y + +config KCORE_ELF + bool + default y + +source "fs/Kconfig.binfmt" + +endmenu + +menu "Power management options" + +config PM + bool "Power Management support" + help + Support processor power management modes + +endmenu + + +source "net/Kconfig" + +source "drivers/Kconfig" + +source "fs/Kconfig" + +source "arch/nios2nommu/Kconfig.debug" + +menu "Kernel hacking" + +config FULLDEBUG + bool "Full Symbolic/Source Debugging support" + help + Enable debuging symbols on kernel build. + +config FRAME_POINTER + bool "Compile the kernel with frame pointers" + help + If you say Y here the resulting kernel image will be slightly larger + and slower, but it will give very useful debugging information. + If you don't debug the kernel, you can say N, but we may not be able + to solve problems without frame pointers. + +config MAGIC_SYSRQ + bool "Magic SysRq key" + help + Enables console device to interpret special characters as + commands to dump state information. + +config HIGHPROFILE + bool "Use fast second timer for profiling" + depends on COLDFIRE + help + Use a fast secondary clock to produce profiling information. + +config NO_KERNEL_MSG + bool "Suppress Kernel BUG Messages" + help + Do not output any debug BUG messages within the kernel. + +config LOG_BUF_SHIFT + int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL + range 12 21 + default 17 if ARCH_S390 + default 16 if X86_NUMAQ || IA64 + default 15 if SMP + default 14 + help + Select kernel log buffer size as a power of 2. + Defaults and Examples: + 17 => 128 KB for S/390 + 16 => 64 KB for x86 NUMAQ or IA-64 + 15 => 32 KB for SMP + 14 => 16 KB for uniprocessor + 13 => 8 KB + 12 => 4 KB + +endmenu + +source "security/Kconfig" + +source "crypto/Kconfig" + +source "lib/Kconfig" diff --git a/arch/nios2nommu/Kconfig.debug b/arch/nios2nommu/Kconfig.debug new file mode 100644 index 0000000..b188c4a --- /dev/null +++ b/arch/nios2nommu/Kconfig.debug @@ -0,0 +1,35 @@ +menu "Kernel hacking" + +source "lib/Kconfig.debug" + +config FULLDEBUG + bool "Full Symbolic/Source Debugging support" + help + Enable debuging symbols on kernel build. + +config FRAME_POINTER + bool "Compile the kernel with frame pointers" + help + If you say Y here the resulting kernel image will be slightly larger + and slower, but it will give very useful debugging information. + If you don't debug the kernel, you can say N, but we may not be able + to solve problems without frame pointers. + +config MAGIC_SYSRQ + bool "Magic SysRq key" + help + Enables console device to interpret special characters as + commands to dump state information. + +config HIGHPROFILE + bool "Use fast second timer for profiling" + depends on COLDFIRE + help + Use a fast secondary clock to produce profiling information. + +config NO_KERNEL_MSG + bool "Suppress Kernel BUG Messages" + help + Do not output any debug BUG messages within the kernel. + +endmenu diff --git a/arch/nios2nommu/Makefile b/arch/nios2nommu/Makefile new file mode 100644 index 0000000..ca139b6 --- /dev/null +++ b/arch/nios2nommu/Makefile @@ -0,0 +1,181 @@ +# arch/niosnommu/Makefile +# +# Makefile for the architecture dependent flags and dependencies on the +# nios. +# +# Copyright (C) 2001 Vic Phillips (vic@microtronix.com) +# +# based on sparcnommu/Makefile: +# +# Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) +# +KERNELLOAD = ${shell echo `grep "nasys_program_mem " include/asm/nios.h | sed 's/^.*\*)//' | sed 's/)//'`} + +HARDWARE_MK = arch/$(ARCH)/hardware.mk + +platform-$(CONFIG_NIOS) := NIOS2 +PLATFORM := $(platform-y) + +board-$(CONFIG_ALTERA_STRATIX) := altera_stratix +board-$(CONFIG_ALTERA_STRATIX_PRO) := altera_stratix_pro +board-$(CONFIG_ALTERA_STRATIX_II) := altera_stratix_ii +board-$(CONFIG_ALTERA_CYCLONE) := altera_cyclone +board-$(CONFIG_ALTERA_CYCLONE_1C12_EVAL) := altera_cyclone_1c12_eval +board-$(CONFIG_MICROTRONIX_STRATIX) := microtronix_stratix +board-$(CONFIG_MICROTRONIX_CYCLONE) := microtronix_cyclone +board-$(CONFIG_MICROTRONIX_UKIT) := microtronix_ukit +board-$(CONFIG_MICROTRONIX_PSK) := microtronix_psk +BOARD := $(board-y) + +model-$(CONFIG_RAMKERNEL) := ram +model-$(CONFIG_ROMKERNEL) := rom +model-$(CONFIG_HIMEMKERNEL) := himem +MODEL := $(model-y) + +export PLATFORM BOARD MODEL + +CFLAGS += -DNO_MM -pipe -D__linux__ -D__ELF__ +#CFLAGS += -DNO_MM -save-temps -D__linux__ -D__ELF__ + +# Uncomment this if you are doing gdb source level +# debugging of the kernel to get the proper debugging information. +# +#CFLAGS += -DDEBUG + +# Turn on/off various hardware multiply options +cpu-cflags-$(CONFIG_NIOS2_HW_MUL_OFF) += -mno-hw-mul -mno-hw-mulx +cpu-cflags-$(CONFIG_NIOS2_HW_MUL) += -mhw-mul -mno-hw-mulx +cpu-cflags-$(CONFIG_NIOS2_HW_MULX) += -mhw-mul -mhw-mulx +CFLAGS += $(cpu-cflags-y) + +# mulx flags currently cause older version of nios2-elf-gcc to fail +# The following line ensures that all mulx flags are removed before +# it is passed to the compiler. +mulx_help_text:= $(shell $(CC) --target-help | grep mulx) +ifeq "$(mulx_help_text)" "" +CFLAGS := $(filter-out -mhw-mulx -mno-hw-mulx, $(CFLAGS)) +endif + +# Temporary workaround for nios2-elf-gcc bug +# First noticed in v3.4.1 (Altera Nios II 1.1 b131) +# To be removed at a later date when bug is resolved. +CFLAGS += -fno-optimize-sibling-calls + +# This undefines the "__init" type used in defining initialization +# procedures. When defined, the procedures are put into an 'init' data +# section that GDB doesn't recognize as source. +# +CFLAGS += -DNO_TEXT_SECTIONS +CFLAGS += -fno-builtin +CFLAGS += -O2 -g -G 0 +CFLAGS += -DUTS_SYSNAME=\"uClinux\" + +CFLAGS_GCC_INC := $(shell $(CC) -print-file-name=include) +CFLAGS += -I$(CFLAGS_GCC_INC) + +AFLAGS += -DNO_MM -g +#AFLAGS += -DNO_MM -g -save-temps + +# vic - add this to get name of nios gcc library +LIBGCC_CFLAGS = $(if $(CONFIG_NIOS2_HW_MUL_OFF),-mno-hw-mul) +LIBGCC := `$(CC) --print-libgcc-file-name $(LIBGCC_CFLAGS)` + +# add this to avoid multiple '_stack' and '_vecbase' definition errors +# +ifdef niosgnu +# Include the path to the lib directory where the ldscripts are found to fix +# a problem with the cygwin/bash environment. + +#cygwhack: kenw - this following section could be a possible problem +# due to the O= option on the command line. +LDSCRIPTS:=$(shell nios2-elf-gcc -print-file-name=ldscripts) +LDFLAGS += -mnios2elf -L $(LDSCRIPTS)/.. +else +LDFLAGS += -mnios2elf +LDLIBS := -L `$(CC) -print-file-name=m32` -l gcc +endif + +head-y := arch/nios2nommu/kernel/head.o arch/nios2nommu/kernel/init_task.o + +CLEAN_FILES := include/asm-$(ARCH)/asm-offsets.h \ + $(HARDWARE_MK) \ + arch/$(ARCH)/kernel/asm-offsets.s \ + linux.srec \ + linux.flash \ + linux.bin \ + linux.bin.srec + +core-y += arch/nios2nommu/kernel/ \ + arch/nios2nommu/mm/ \ + arch/nios2nommu/drivers/ + +libs-y += arch/nios2nommu/lib/ + +libs-y += $(LIBGCC) +####;dgt2;tmp; + +# force user to configure hardware before building kernel + +pardoned_targets = clean mrproper sgmldocs psdocs pdfdocs \ + htmldocs mandocs headers_install + +-include $(HARDWARE_MK) +build_targets = $(filter-out $(pardoned_targets), $(MAKECMDGOALS)) +ifneq '$(strip $(build_targets))' '' + ifndef SYSPTF + ifneq '$(firstword $(MAKECMDGOALS))' 'hwselect' + $(error Run "make hwselect SYSPTF=" first) + endif + endif +endif + +quiet_cmd_gen_mk = ' RUNNING $@' +define cmd_gen_mk + mkdir -p $(dir $(objtree)/$(HARDWARE_MK)); \ + perl -I$(TOPDIR)/arch/$(ARCH)/scripts \ + $(srctree)/arch/$(ARCH)/scripts/hwselect.pl $(SYSPTF) \ + $(objtree)/$(HARDWARE_MK) +endef + +.PHONY: hwselect +hwselect: + @echo $($(quiet)cmd_gen_mk); + @$(cmd_gen_mk) + +prepare: include/nios2_system.h + +archclean: + $(call descend arch/$(ARCH)/boot, subdirclean) + +define filechk_nios2_system.h + # call perl script that will build nios2_system.h file + perl -I$(TOPDIR)/arch/$(ARCH)/scripts \ + $(TOPDIR)/arch/$(ARCH)/scripts/gen_nios2_system.h.pl $(CPU) $(EXEMEM) $(UPLMEM) +endef + +include/nios2_system.h: $(SYSPTF) FORCE + $(call filechk,nios2_system.h) + +quiet_cmd_touch = ' TOUCH $@' + cmd_touch = touch $(TOPDIR)/$@ + +arch/$(ARCH)/kernel/vmlinux.lds.S: FORCE + @echo $($(quiet)cmd_touch); + @$(cmd_touch) + +linuxsrec: linux + $(OBJCOPY) -O srec $(LINUX) linux.srec + +boot := arch/nios2nommu/boot + +zImage: vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +compressed: zImage + +CLEAN_FILES += include/nios2_system.h + +archmrproper: + +archdep: + diff --git a/arch/nios2nommu/boot/Makefile b/arch/nios2nommu/boot/Makefile new file mode 100644 index 0000000..fd25b72 --- /dev/null +++ b/arch/nios2nommu/boot/Makefile @@ -0,0 +1,17 @@ +# +# arch/nios2nommu/boot/Makefile +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. + +targets := zImage +subdir- := compressed + +$(obj)/zImage: $(obj)/compressed/vmlinux FORCE + $(call if_changed,objcopy) + @echo 'Kernel: $@ is ready' + +$(obj)/compressed/vmlinux: FORCE + $(Q)$(MAKE) $(build)=$(obj)/compressed $@ + diff --git a/arch/nios2nommu/boot/compressed/Makefile b/arch/nios2nommu/boot/compressed/Makefile new file mode 100644 index 0000000..2002471 --- /dev/null +++ b/arch/nios2nommu/boot/compressed/Makefile @@ -0,0 +1,36 @@ +# +# linux/arch/sh/boot/compressed/Makefile +# +# create a compressed vmlinux image from the original vmlinux +# + +targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o \ + piggy.o vmlinux.lds +EXTRA_AFLAGS := + +OBJECTS = $(obj)/head.o $(obj)/misc.o + +# +# IMAGE_OFFSET is the load offset of the compression loader +# +#IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+0x2000]) +#IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+0x00400000]) + +LDFLAGS_vmlinux := -T + +$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(obj)/piggy.o FORCE + $(call if_changed,ld) + @: + +$(obj)/vmlinux.bin: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +LDFLAGS_piggy.o := -r --format binary --oformat elf32-littlenios2 -T + +OBJCOPYFLAGS += -O binary + +$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE + $(call if_changed,ld) diff --git a/arch/nios2nommu/boot/compressed/head.S b/arch/nios2nommu/boot/compressed/head.S new file mode 100644 index 0000000..accadd0 --- /dev/null +++ b/arch/nios2nommu/boot/compressed/head.S @@ -0,0 +1,100 @@ +/* + * linux/arch/nios2nommu/boot/compressed/head.S + * + */ + + .text + .set noat +#include +#include + + /* + * This code can be loaded anywhere, as long as output will not + * overlap it. + * + */ + + .global _start +_start: + // disable interrupt + wrctl status, r0 + // flush the instruction cache + movia r1,NIOS2_ICACHE_SIZE + movi r2,NIOS2_ICACHE_LINE_SIZE +text_init: + initi r1 + sub r1, r1, r2 + bgt r1, zero, text_init + // then flush the pipeline + flushp + // flush the data cache + movia r1,NIOS2_DCACHE_SIZE + movi r2,NIOS2_DCACHE_LINE_SIZE +data_init: + initd (r1) + sub r1, r1, r2 + bgt r1, zero, data_init + //------------------------------------------------------ + // Zero out the .bss segment (uninitialized common data) + // + movia r2,__bss_start // presume nothing is between + movia r1,_end // the .bss and _end. +1: + stb r0,0(r2) + addi r2,r2,1 + bne r1,r2,1b + // set up the stack pointer, some where higher than _end. The stack space must be greater than 32K for decompress. + movia sp, 0x10000 + add sp,sp,r1 + // save args passed from u-boot + addi sp,sp,-16 + stw r4,0(sp) + stw r5,4(sp) + stw r6,8(sp) + stw r7,12(sp) +/* + * decompress the kernel + */ + call decompress_kernel + +flush_cache: + // flush all cache after loading + // flush the data cache + movia r1,NIOS2_DCACHE_SIZE + movi r2,NIOS2_DCACHE_LINE_SIZE +data_flush: + flushd (r1) + sub r1, r1, r2 + bgt r1, zero, data_flush + // flush the instruction cache + movia r1,NIOS2_ICACHE_SIZE + movi r2,NIOS2_ICACHE_LINE_SIZE +text_flush: + flushi r1 + sub r1, r1, r2 + bgt r1, zero, text_flush + // then flush the pipeline + flushp + // pass saved args to kernel + ldw r4,0(sp) + ldw r5,4(sp) + ldw r6,8(sp) + ldw r7,12(sp) + movia r1,LINUX_SDRAM_START + jmp r1 + + .balign 512 +fake_headers_as_bzImage: + .short 0 + .ascii "HdrS" + .short 0x0202 + .short 0 + .short 0 + .byte 0x00, 0x10 + .short 0 + .byte 0 + .byte 1 + .byte 0x00, 0x80 + .long 0 + .long 0 + diff --git a/arch/nios2nommu/boot/compressed/install.sh b/arch/nios2nommu/boot/compressed/install.sh new file mode 100644 index 0000000..6d72e9e --- /dev/null +++ b/arch/nios2nommu/boot/compressed/install.sh @@ -0,0 +1,57 @@ +#!/bin/sh +# +# arch/sh/boot/install.sh +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 1995 by Linus Torvalds +# +# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin +# Adapted from code in arch/i386/boot/install.sh by Russell King +# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy +# Adapted from code in arch/sh/boot/install.sh by Takeo Takahashi +# +# "make install" script for sh architecture +# +# Arguments: +# $1 - kernel version +# $2 - kernel image file +# $3 - kernel map file +# $4 - default install path (blank if root directory) +# + +# User may have a custom install script + +if [ -x /sbin/installkernel ]; then + exec /sbin/installkernel "$@" +fi + +if [ "$2" = "zImage" ]; then +# Compressed install + echo "Installing compressed kernel" + if [ -f $4/vmlinuz-$1 ]; then + mv $4/vmlinuz-$1 $4/vmlinuz.old + fi + + if [ -f $4/System.map-$1 ]; then + mv $4/System.map-$1 $4/System.old + fi + + cat $2 > $4/vmlinuz-$1 + cp $3 $4/System.map-$1 +else +# Normal install + echo "Installing normal kernel" + if [ -f $4/vmlinux-$1 ]; then + mv $4/vmlinux-$1 $4/vmlinux.old + fi + + if [ -f $4/System.map ]; then + mv $4/System.map $4/System.old + fi + + cat $2 > $4/vmlinux-$1 + cp $3 $4/System.map +fi diff --git a/arch/nios2nommu/boot/compressed/misc.c b/arch/nios2nommu/boot/compressed/misc.c new file mode 100644 index 0000000..c513e6e --- /dev/null +++ b/arch/nios2nommu/boot/compressed/misc.c @@ -0,0 +1,208 @@ +/* + * arch/nios2nommu/boot/compressed/misc.c + * + * This is a collection of several routines from gzip-1.0.3 + * adapted for Linux. + * + * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 + * + * Adapted for SH by Stuart Menefy, Aug 1999 + * + * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000 + */ + +#include + +/* + * gzip declarations + */ + +#define OF(args) args +#define STATIC static + +#undef memset +#undef memcpy +#define memzero(s, n) memset ((s), 0, (n)) + +typedef unsigned char uch; +typedef unsigned short ush; +typedef unsigned long ulg; + +#define WSIZE 0x8000 /* Window size must be at least 32k, */ + /* and a power of two */ + +static uch *inbuf; /* input buffer */ +static uch window[WSIZE]; /* Sliding window buffer */ + +static unsigned insize = 0; /* valid bytes in inbuf */ +static unsigned inptr = 0; /* index of next byte to be processed in inbuf */ +static unsigned outcnt = 0; /* bytes in output buffer */ + +/* gzip flag byte */ +#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */ +#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ +#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ +#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ +#define COMMENT 0x10 /* bit 4 set: file comment present */ +#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ +#define RESERVED 0xC0 /* bit 6,7: reserved */ + +#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf()) + +/* Diagnostic functions */ +#ifdef DEBUG +# define Assert(cond,msg) {if(!(cond)) error(msg);} +# define Trace(x) fprintf x +# define Tracev(x) {if (verbose) fprintf x ;} +# define Tracevv(x) {if (verbose>1) fprintf x ;} +# define Tracec(c,x) {if (verbose && (c)) fprintf x ;} +# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;} +#else +# define Assert(cond,msg) +# define Trace(x) +# define Tracev(x) +# define Tracevv(x) +# define Tracec(c,x) +# define Tracecv(c,x) +#endif + +static int fill_inbuf(void); +static void flush_window(void); +static void error(char *m); +static void gzip_mark(void **); +static void gzip_release(void **); + +extern char input_data[]; +extern int input_len; + +static long bytes_out = 0; +static uch *output_data; +static unsigned long output_ptr = 0; + +#include "nios2_sio.c" + +static void *malloc(int size); +static void free(void *where); +static void error(char *m); +static void gzip_mark(void **); +static void gzip_release(void **); + +int puts(const char *); + +extern int _end; +static unsigned long free_mem_ptr; +static unsigned long free_mem_end_ptr; + +#define HEAP_SIZE 0x10000 + +#include "../../../../lib/inflate.c" + +static void *malloc(int size) +{ + void *p; + + if (size <0) error("Malloc error"); + if (free_mem_ptr == 0) error("Memory error"); + + free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */ + + p = (void *)free_mem_ptr; + free_mem_ptr += size; + + if (free_mem_ptr >= free_mem_end_ptr) + error("Out of memory"); + + return p; +} + +static void free(void *where) +{ /* Don't care */ +} + +static void gzip_mark(void **ptr) +{ + *ptr = (void *) free_mem_ptr; +} + +static void gzip_release(void **ptr) +{ + free_mem_ptr = (long) *ptr; +} + +void* memset(void* s, int c, size_t n) +{ + int i; + char *ss = (char*)s; + + for (i=0;i> 8); + } + crc = c; + bytes_out += (ulg)outcnt; + output_ptr += (ulg)outcnt; + outcnt = 0; +} + +static void error(char *x) +{ + puts("\nERROR\n"); + puts(x); + puts("\n\n -- System halted"); + + while(1); /* Halt */ +} + +void decompress_kernel(void) +{ + output_data = (void *)nasys_program_mem; + output_ptr = 0; + free_mem_ptr = (unsigned long)&_end; + free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; + + makecrc(); + puts("Uncompressing Linux... "); + gunzip(); + puts("Ok, booting the kernel.\n"); +} diff --git a/arch/nios2nommu/boot/compressed/nios2_sio.c b/arch/nios2nommu/boot/compressed/nios2_sio.c new file mode 100644 index 0000000..8630c8f --- /dev/null +++ b/arch/nios2nommu/boot/compressed/nios2_sio.c @@ -0,0 +1,57 @@ + +static int putchar(int ch); + +static int puts(const char *s) + { + while(*s) + putchar(*s++); + return 0; + } + +#include +#include + +#if defined(CONFIG_SERIAL_AJUART_CONSOLE) + +#define IORD_ALTERA_AVALON_JTAG_UART_DATA(base) inl(base) +#define IOWR_ALTERA_AVALON_JTAG_UART_DATA(base, data) outl(data, base) +#define IORD_ALTERA_AVALON_JTAG_UART_CONTROL(base) inl(base+4) +#define IOWR_ALTERA_AVALON_JTAG_UART_CONTROL(base, data) outl(data, base+4) +#define ALTERA_AVALON_JTAG_UART_CONTROL_WSPACE_MSK (0xFFFF0000u) +#define ALTERA_AVALON_JTAG_UART_CONTROL_WSPACE_OFST (16) + +static void jtag_putc(int ch) +{ + unsigned base = na_jtag_uart; + while ((IORD_ALTERA_AVALON_JTAG_UART_CONTROL(base) & ALTERA_AVALON_JTAG_UART_CONTROL_WSPACE_MSK) == 0); + IOWR_ALTERA_AVALON_JTAG_UART_DATA(base, ch); +} + +static int putchar(int ch) +{ + jtag_putc( ch ); + return ch; +} + +#elif defined(CONFIG_NIOS_SERIAL_CONSOLE) + +static void nr_txchar(int ch) +{ + while ((na_uart0->np_uartstatus & np_uartstatus_trdy_mask) == 0); + na_uart0->np_uarttxdata = ch; +} + +static int putchar(int ch) +{ + nr_txchar( ch ); if (ch=='\n') nr_txchar( '\r' ); + return ch; +} + +#else + +static int putchar(int ch) +{ + return ch; +} + +#endif diff --git a/arch/nios2nommu/boot/compressed/vmlinux.lds.S b/arch/nios2nommu/boot/compressed/vmlinux.lds.S new file mode 100644 index 0000000..08bb3e2 --- /dev/null +++ b/arch/nios2nommu/boot/compressed/vmlinux.lds.S @@ -0,0 +1,34 @@ +#include +#include + +OUTPUT_FORMAT("elf32-littlenios2", "elf32-littlenios2", "elf32-littlenios2") + +OUTPUT_ARCH(nios) +ENTRY(_start) /* Defined in head.S */ + +SECTIONS +{ + . =nasys_program_mem + CONFIG_BOOT_LINK_OFFSET; + + _text = .; + .text : { *(.text) } = 0 + .rodata : { *(.rodata) *(.rodata.*) } + _etext = .; + + . = ALIGN(32 / 8); + .data : { *(.data) } + . = ALIGN(32 / 8); + _got = .; + .got : { *(.got) _egot = .; *(.got.*) } + _edata = .; + + . = ALIGN(32 / 8); + __bss_start = .; + .bss : { *(.bss) *(.sbss) } + . = ALIGN(32 / 8); + _ebss = .; + end = . ; + _end = . ; + + got_len = (_egot - _got); +} diff --git a/arch/nios2nommu/defconfig b/arch/nios2nommu/defconfig new file mode 100644 index 0000000..40629cb --- /dev/null +++ b/arch/nios2nommu/defconfig @@ -0,0 +1,690 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.19-uc1 +# +# CONFIG_MMU is not set +# CONFIG_FPU is not set +CONFIG_UID16=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_LOCK_KERNEL=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +# CONFIG_SYSVIPC is not set +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +# CONFIG_RELAY is not set +CONFIG_INITRAMFS_SOURCE="../romfs ../vendors/Altera/nios2nommu/romfs_list" +CONFIG_INITRAMFS_ROOT_UID=500 +CONFIG_INITRAMFS_ROOT_GID=500 +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_EMBEDDED=y +# CONFIG_SYSCTL_SYSCALL is not set +# CONFIG_KALLSYMS is not set +# CONFIG_HOTPLUG is not set +CONFIG_PRINTK=y +CONFIG_BUG=y +# CONFIG_ELF_CORE is not set +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +# CONFIG_EPOLL is not set +CONFIG_SLAB=y +# CONFIG_VM_EVENT_COUNTERS is not set +CONFIG_RT_MUTEXES=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +# CONFIG_MODULES is not set + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_BLK_DEV_IO_TRACE is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +# CONFIG_IOSCHED_AS is not set +CONFIG_IOSCHED_DEADLINE=y +# CONFIG_IOSCHED_CFQ is not set +# CONFIG_DEFAULT_AS is not set +CONFIG_DEFAULT_DEADLINE=y +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="deadline" + +# +# Processor type and features +# + +# +# Platform dependant setup +# +CONFIG_NIOS2=y +# CONFIG_MICROTRONIX_UKIT is not set +# CONFIG_MICROTRONIX_STRATIX is not set +# CONFIG_MICROTRONIX_CYCLONE is not set +# CONFIG_MICROTRONIX_PSK is not set +CONFIG_ALTERA_STRATIX=y +# CONFIG_ALTERA_STRATIX_PRO is not set +# CONFIG_ALTERA_STRATIX_II is not set +# CONFIG_ALTERA_CYCLONE is not set +# CONFIG_ALTERA_CYCLONE_1C12_EVAL is not set +# CONFIG_ALTERA_DE2 is not set +# CONFIG_NIOS2_HW_MUL_OFF is not set +CONFIG_NIOS2_HW_MUL=y +# CONFIG_NIOS2_HW_MULX is not set + +# +# Platform drivers Options +# +# CONFIG_AVALON_DMA is not set +# CONFIG_PIO_DEVICES is not set +# CONFIG_PCI is not set +# CONFIG_FB_ALTERA is not set +# CONFIG_SERIO_ALTPS2 is not set +# CONFIG_I2C_GPIO is not set + +# +# Miscellaneous Options +# +CONFIG_EXCALIBUR=y +# CONFIG_BREAK_ON_START is not set +CONFIG_LARGE_ALLOCS=y +CONFIG_RAMKERNEL=y +CONFIG_PREEMPT=y +# CONFIG_PREEMPT_TIMES is not set +CONFIG_CMDLINE="" +# CONFIG_PASS_CMDLINE is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_BOOT_LINK_OFFSET=0x00500000 + +# +# Bus options (PCI, PCMCIA, EISA, MCA, ISA) +# + +# +# PCCARD (PCMCIA/CardBus) support +# + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_KCORE_AOUT=y +CONFIG_KCORE_ELF=y +CONFIG_BINFMT_FLAT=y +CONFIG_BINFMT_ZFLAT=y +# CONFIG_BINFMT_SHARED_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +# CONFIG_PM is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +# CONFIG_IP_PNP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +# CONFIG_SYN_COOKIES is not set +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +# CONFIG_IPSEC_NAT_TRAVERSAL is not set +# CONFIG_INET_XFRM_MODE_TRANSPORT is not set +# CONFIG_INET_XFRM_MODE_TUNNEL is not set +# CONFIG_INET_XFRM_MODE_BEET is not set +# CONFIG_INET_DIAG is not set +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_KLIPS is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +# CONFIG_MTD is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_RAM is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# +# CONFIG_TIFM_CORE is not set + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set +# CONFIG_SCSI_NETLINK is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +# CONFIG_ATA is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_NET_VENDOR_SMC is not set +# CONFIG_OPEN_ETH is not set +# CONFIG_MTIP1000_ETH is not set +# CONFIG_NE2000 is not set +# CONFIG_NET_PCI is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +# CONFIG_INPUT is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set +# CONFIG_NIOS_LCD_16207 is not set +# CONFIG_NIOS_BUTTON is not set +# CONFIG_LEDMAN is not set +# CONFIG_SNAPDOG is not set +# CONFIG_FAST_TIMER is not set +# CONFIG_RESETSWITCH is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_NIOS_SERIAL is not set +CONFIG_SERIAL_AJUART=y +CONFIG_SERIAL_AJUART_CONSOLE=y +# CONFIG_UNIX98_PTYS is not set +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=10 + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_RTC is not set +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set + +# +# Ftape, the floppy tape device driver +# +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set +# CONFIG_M41T11M6 is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# USB support +# +# CONFIG_USB_ARCH_HAS_HCD is not set +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +# CONFIG_RTC_CLASS is not set + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# File systems +# +# CONFIG_EXT2_FS is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_INOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_DNOTIFY is not set +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set +# CONFIG_DIRECTIO is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +# CONFIG_PROC_SYSCTL is not set +CONFIG_SYSFS=y +# CONFIG_TMPFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_SQUASHFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +# CONFIG_NFS_V3_ACL is not set +# CONFIG_NFS_V4 is not set +# CONFIG_NFSD is not set +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +# CONFIG_RPCSEC_GSS_KRB5 is not set +# CONFIG_RPCSEC_GSS_SPKM3 is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Debug +# +# CONFIG_COREDUMP_PRINTK is not set + +# +# Kernel hacking +# +# CONFIG_FULLDEBUG is not set +# CONFIG_FRAME_POINTER is not set +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_NO_KERNEL_MSG is not set +CONFIG_LOG_BUF_SHIFT=14 + +# +# Security options +# +# CONFIG_KEYS is not set +# CONFIG_SECURITY is not set + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_PLIST=y diff --git a/arch/nios2nommu/drivers/Kconfig b/arch/nios2nommu/drivers/Kconfig new file mode 100644 index 0000000..2fde3a8 --- /dev/null +++ b/arch/nios2nommu/drivers/Kconfig @@ -0,0 +1,45 @@ +# Platfrom drivers configuration + +source "arch/nios2nommu/drivers/pci/Kconfig" + +config FB_ALTERA + tristate "Avalon VGA controller support" + default N + select FB + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + help + This is the frame buffer device driver for the VGA controller + in SOPC Builder. + +config SERIO_ALTPS2 + tristate "PS2 controller" + select VT + default N + select SERIO + +config I2C_NIOS2_GPIO + tristate "GPIO-Based I2C Interface" + default N + select I2C + select I2C_ALGOBIT + help + Say Y here if you use GPIO lines for an I2C bus. + +config BLK_DEV_ALTCF + tristate "Altera CF (IDE mode) interface (Avalon bus) support" + select IDE + select BLK_DEV_IDE + default N + help + This driver provides support for the Altera Compact flash core (with + Avalon interface) support. If you have an Altera or Microtronix + development board you can build support into the FPGA device for this. + +config NIOS_SPI + bool "Nios SPI device support" + depends on NIOS || NIOS2 + help + This driver supports the Nios softcore SPI device. + diff --git a/arch/nios2nommu/drivers/Makefile b/arch/nios2nommu/drivers/Makefile new file mode 100644 index 0000000..f6a273e --- /dev/null +++ b/arch/nios2nommu/drivers/Makefile @@ -0,0 +1,10 @@ +# +# Makefile for the Linux nios2-specific device drivers. +# + +obj-$(CONFIG_PCI) += pci/ +obj-$(CONFIG_FB_ALTERA) += altfb.o +obj-$(CONFIG_SERIO_ALTPS2) += altps2.o +obj-$(CONFIG_I2C_NIOS2_GPIO) += i2c-gpio.o +obj-$(CONFIG_BLK_DEV_ALTCF) += altcf.o +obj-$(CONFIG_NIOS_SPI) += spi.o diff --git a/arch/nios2nommu/drivers/altcf.c b/arch/nios2nommu/drivers/altcf.c new file mode 100644 index 0000000..80275c6 --- /dev/null +++ b/arch/nios2nommu/drivers/altcf.c @@ -0,0 +1,266 @@ +/* + * linux/drivers/ide/altcf.c + * Support for Altera CompactFlash core with Avalon interface. + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Written by Wentao Xu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Microtronix Datacom Ltd."); +MODULE_DESCRIPTION("Driver of Altera CompactFlash core with Avalon interface"); +MODULE_LICENSE("GPL"); + +#define PDEBUG printk +/* Altera Avalon Compact Flash core registers */ +#define REG_CFCTL 0 +#define REG_IDECTL 4 + +/* CFCTL bits */ +#define CFCTL_DET 1 /* detect status */ +#define CFCTL_PWR 2 /* Power */ +#define CFCTL_RST 4 /* Reset */ +#define CFCTL_IDET 8 /* Detect int enable*/ + +/* IDECTL bits */ +#define IDECTL_IIDE 1 /* IDE int enable */ + +struct cf_dev { + int base; + int irq; + int ide_base; + int ide_irq; + int configured; + ide_hwif_t *hwif; + struct delayed_work wcf; +}; + +static struct cf_dev cf_devices[MAX_HWIFS] = { +#if MAX_HWIFS > 0 + {na_ide_ctl, na_ide_ctl_irq, na_ide_ide, na_ide_ide_irq, 0, NULL}, +#endif +#if MAX_HWIFS > 1 + {na_ctl_base1, na_ctl_irq1, na_ide_base1, na_ide_irq1, 0, NULL}, +#endif +#if MAX_HWIFS > 2 + {na_ctl_base2, na_ctl_irq2, na_ide_base2, na_ide_irq2, 0, NULL}, +#endif +#if MAX_HWIFS > 3 + {na_ctl_base3, na_ctl_irq3, na_ide_base3, na_ide_irq3, 0, NULL}, +#endif +}; + +static inline void cf_init_hwif_ports(hw_regs_t *hw, + unsigned long io_addr, + unsigned long ctl_addr, + int *irq) +{ + unsigned int i; + + for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) + hw->io_ports[i] = io_addr + 4*(i-IDE_DATA_OFFSET); + + hw->io_ports[IDE_CONTROL_OFFSET] = ctl_addr; + + if (irq) + *irq = 0; + + hw->io_ports[IDE_IRQ_OFFSET] = 0; + +} + +static int cf_release(struct cf_dev* dev) +{ + if (dev) { + if ((dev->configured) && (dev->hwif)) { + /* disable IDE interrupts */ + outl(0, dev->base + REG_IDECTL); + /* power off the card */ + //outl(0, dev->base + REG_CFCTL); + + ide_unregister(dev->hwif->index); + dev->configured = 0; + dev->hwif = NULL; + PDEBUG("CF released\n"); + return 0; + } + } + return -1; +} + +static int cf_config(struct cf_dev* dev) +{ + hw_regs_t hw; + int index; + ide_hwif_t *hwif; + + if (!dev) + return -1; + + if (!dev->configured) { + int i; + for (i=1; i<=10; i++) { + cf_init_hwif_ports(&hw, dev->ide_base, 0, NULL); + hw.irq = dev->ide_irq; + hw.chipset = ide_generic; + outl(IDECTL_IIDE, dev->base + REG_IDECTL); + index = ide_register_hw(&hw, 1, &hwif); + if (index >=0) { + dev->configured = 1; + dev->hwif = hwif; + return index; + } + + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(HZ/10); + } + /* register fails */ + PDEBUG("CF:fail to register\n"); + /* disable IDE interrupt */ + outl(0, dev->base + REG_IDECTL); + return -1; + } + return -2; /* already configured */ +} + +static irqreturn_t cf_intr(int irq, void *dev_id) +{ + unsigned int cfctl; + struct cf_dev* dev = (struct cf_dev *)dev_id; + + if (!dev) + return IRQ_NONE; + + cfctl=inl(dev->base + REG_CFCTL); + /* unpower the card */ + outl((cfctl & ~(CFCTL_PWR)), dev->base + REG_CFCTL); + + if ((cfctl & CFCTL_DET)) + schedule_delayed_work(&dev->wcf, HZ/2); + else + schedule_work(&dev->wcf.work); + return IRQ_HANDLED; +} + +static void cf_event(struct work_struct *work) +{ + struct cf_dev* dev = container_of(work, struct cf_dev, wcf.work); + + if (dev) { + unsigned int cfctl; + + cfctl=inl(dev->base + REG_CFCTL); + if ((cfctl & CFCTL_DET)) { + /* a CF card is inserted, power on the card */ + outl(((cfctl | CFCTL_PWR) & ~(CFCTL_RST) ), dev->base + REG_CFCTL); + set_current_state(TASK_UNINTERRUPTIBLE); + schedule_timeout(HZ); + cf_config(dev); + } + else { + /* a CF card is removed */ + cf_release(dev); + } + } +} + +int __init altcf_init(void) +{ + unsigned int cfctl; + int i; + ide_hwif_t *hwif; + hw_regs_t hw; + extern ide_hwif_t ide_hwifs[]; + + for (i=0; i=0) { + cf_devices[i].configured = 1; + cf_devices[i].hwif = hwif; + } + else + printk("CF register fails\n"); + } + else printk("Unable to initialize compact flash card. Please re-insert\n"); + } + + /* register the detection interrupt */ + if (request_irq(cf_devices[i].irq, cf_intr, IRQF_DISABLED, "cf", &cf_devices[i])) { + PDEBUG("CF: unable to get interrupt %d for detecting inf %d\n", + cf_devices[i].irq, i ); + } else { + INIT_DELAYED_WORK(&cf_devices[i].wcf, cf_event); + /* enable the detection interrupt */ + cfctl=inl(cf_devices[i].base + REG_CFCTL); + outl(cfctl | CFCTL_IDET, cf_devices[i].base + REG_CFCTL); + } + } + + return 0; +} + +#ifdef MODULE +static void __exit altcf_exit(void) +{ + unsigned int cfctl; + for (i=0; i +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define vgabase na_vga_controller_0 +#define XRES 640 +#define YRES 480 +#define BPX 16 + + /* + * RAM we reserve for the frame buffer. This defines the maximum screen + * size + * + * The default can be overridden if the driver is compiled as a module + */ + +#define VIDEOMEMSIZE (XRES * YRES * (BPX>>3)) + +static void *videomemory; +static u_long videomemorysize = VIDEOMEMSIZE; +module_param(videomemorysize, ulong, 0); + +static struct fb_var_screeninfo altfb_default __initdata = { + .xres = XRES, + .yres = YRES, + .xres_virtual = XRES, + .yres_virtual = YRES, + .bits_per_pixel = BPX, +#if (BPX == 16) + .red = { 11, 5, 0 }, + .green = { 5, 6, 0 }, + .blue = { 0, 5, 0 }, +#else // BPX == 24 + .red = { 16, 8, 0 }, + .green = { 8, 8, 0 }, + .blue = { 0, 8, 0 }, +#endif + .activate = FB_ACTIVATE_NOW, + .height = -1, + .width = -1, + // timing useless ? + .pixclock = 20000, + .left_margin = 64, + .right_margin = 64, + .upper_margin = 32, + .lower_margin = 32, + .hsync_len = 64, + .vsync_len = 2, + .vmode = FB_VMODE_NONINTERLACED, +}; + +static struct fb_fix_screeninfo altfb_fix __initdata = { + .id = "Altera FB", + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_TRUECOLOR, + .line_length = (XRES * (BPX>>3)), + .xpanstep = 0, + .ypanstep = 0, + .ywrapstep = 0, + .accel = FB_ACCEL_NONE, +}; + +static int altfb_mmap(struct fb_info *info, + struct vm_area_struct *vma); + +static struct fb_ops altfb_ops = { + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_mmap = altfb_mmap, +}; + + + /* + * Most drivers don't need their own mmap function + */ + +static int altfb_mmap(struct fb_info *info, + struct vm_area_struct *vma) +{ + /* this is uClinux (no MMU) specific code */ + vma->vm_flags |= (VM_RESERVED | VM_MAYSHARE); + vma->vm_start = (unsigned) videomemory; + return 0; +} + + /* + * Initialisation + */ + +static void altfb_platform_release(struct device *device) +{ + // This is called when the reference count goes to zero. + dev_err(device, "This driver is broken, please bug the authors so they will fix it.\n"); +} + +static int __init altfb_probe(struct platform_device *dev) +{ + struct fb_info *info; + int retval = -ENOMEM; + dma_addr_t handle; + + /* + * For real video cards we use ioremap. + */ + if (!(videomemory = dma_alloc_coherent(&dev->dev, PAGE_ALIGN(videomemorysize), &handle, GFP_KERNEL))) { + printk(KERN_ERR "altfb: unable to allocate screen memory\n"); + return retval; + } + altfb_fix.smem_start = handle; + altfb_fix.smem_len = videomemorysize; + + info = framebuffer_alloc(sizeof(u32) * 256, &dev->dev); + if (!info) + goto err; + + info->screen_base = (char __iomem *)videomemory; + info->fbops = &altfb_ops; + info->var = altfb_default; + info->fix = altfb_fix; + info->pseudo_palette = info->par; + info->par = NULL; + info->flags = FBINFO_FLAG_DEFAULT; + + retval = fb_alloc_cmap(&info->cmap, 256, 0); + if (retval < 0) + goto err1; + + retval = register_framebuffer(info); + if (retval < 0) + goto err2; + platform_set_drvdata(dev, info); + + outl(0x0,vgabase+0); // Reset the VGA controller + outl(videomemory,vgabase+4); // Where our frame buffer starts + outl(videomemorysize,vgabase+8); // amount of memory needed + outl(0x1,vgabase+0); // Set the go bit + + printk(KERN_INFO + "fb%d: Altera frame buffer device, using %ldK of video memory\n", + info->node, videomemorysize >> 10); + // printk("vga %08x, video %08x+%08x\n",vgabase,videomemory,videomemorysize); + return 0; +err2: + fb_dealloc_cmap(&info->cmap); +err1: + framebuffer_release(info); +err: + dma_free_noncoherent(&dev->dev, videomemorysize, videomemory, handle); + return retval; +} + +static int altfb_remove(struct platform_device *dev) +{ + struct fb_info *info = platform_get_drvdata(dev); + + if (info) { + unregister_framebuffer(info); + dma_free_noncoherent(&dev->dev, videomemorysize, videomemory, altfb_fix.smem_start); + framebuffer_release(info); + } + return 0; +} + +static struct platform_driver altfb_driver = { + .probe = altfb_probe, + .remove = altfb_remove, + .driver = { + .name = "altfb", + }, +}; + +static struct platform_device altfb_device = { + .name = "altfb", + .id = 0, + .dev = { + .release = altfb_platform_release, + } +}; + +static int __init altfb_init(void) +{ + int ret = 0; + + ret = platform_driver_register(&altfb_driver); + + if (!ret) { + ret = platform_device_register(&altfb_device); + if (ret) + platform_driver_unregister(&altfb_driver); + } + return ret; +} + +module_init(altfb_init); + +#ifdef MODULE +static void __exit altfb_exit(void) +{ + platform_device_unregister(&altfb_device); + platform_driver_unregister(&altfb_driver); +} + +module_exit(altfb_exit); + +MODULE_LICENSE("GPL"); +#endif /* MODULE */ diff --git a/arch/nios2nommu/drivers/altps2.c b/arch/nios2nommu/drivers/altps2.c new file mode 100644 index 0000000..4a6523c --- /dev/null +++ b/arch/nios2nommu/drivers/altps2.c @@ -0,0 +1,193 @@ +/* + * altera DE2 PS/2 + * + * linux/drivers/input/serio/sa1111ps2.c + * + * Copyright (C) 2002 Russell King + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + + +struct ps2if { + struct serio *io; + struct platform_device *dev; + unsigned base; + unsigned irq; +}; + +/* + * Read all bytes waiting in the PS2 port. There should be + * at the most one, but we loop for safety. If there was a + * framing error, we have to manually clear the status. + */ +static irqreturn_t ps2_rxint(int irq, void *dev_id) +{ + struct ps2if *ps2if = dev_id; + unsigned int status; + int handled = IRQ_NONE; + + while ((status = inl(ps2if->base)) & 0xffff0000) { + serio_interrupt(ps2if->io, status & 0xff, 0); + handled = IRQ_HANDLED; + } + return handled; +} + +/* + * Write a byte to the PS2 port. We have to wait for the + * port to indicate that the transmitter is empty. + */ +static int ps2_write(struct serio *io, unsigned char val) +{ + struct ps2if *ps2if = io->port_data; + outl(val,ps2if->base); + // should check command send error + if (inl(ps2if->base+4) & (1<<10)) + { + // printk("ps2 write error %02x\n",val); + } + return 0; +} + +static int ps2_open(struct serio *io) +{ + struct ps2if *ps2if = io->port_data; + int ret; + + ret = request_irq(ps2if->irq, ps2_rxint, 0, + "altps2", ps2if); + if (ret) { + printk(KERN_ERR "altps2: could not allocate IRQ%d: %d\n", + ps2if->irq, ret); + return ret; + } + outl(1,ps2if->base+4); // enable rx irq + return 0; +} + +static void ps2_close(struct serio *io) +{ + struct ps2if *ps2if = io->port_data; + outl(0,ps2if->base); // disable rx irq + free_irq(ps2if->irq, ps2if); +} + +/* + * Add one device to this driver. + */ +static int ps2_probe(struct platform_device *dev) +{ + struct ps2if *ps2if; + struct serio *serio; + unsigned int status; + int ret; + + ps2if = kmalloc(sizeof(struct ps2if), GFP_KERNEL); + serio = kmalloc(sizeof(struct serio), GFP_KERNEL); + if (!ps2if || !serio) { + ret = -ENOMEM; + goto free; + } + + memset(ps2if, 0, sizeof(struct ps2if)); + memset(serio, 0, sizeof(struct serio)); + + serio->id.type = SERIO_8042; + serio->write = ps2_write; + serio->open = ps2_open; + serio->close = ps2_close; + strlcpy(serio->name, dev->dev.bus_id, sizeof(serio->name)); + strlcpy(serio->phys, dev->dev.bus_id, sizeof(serio->phys)); + serio->port_data = ps2if; + serio->dev.parent = &dev->dev; + ps2if->io = serio; + ps2if->dev = dev; + platform_set_drvdata(dev, ps2if); + + /* + * Request the physical region for this PS2 port. + */ + if (dev->num_resources < 2) { + ret = -ENODEV; + goto out; + } + if (!request_mem_region(dev->resource[0].start, + 4, + "altps2")) { + ret = -EBUSY; + goto free; + } + ps2if->base = dev->resource[0].start; + ps2if->irq = dev->resource[1].start; + printk("altps2 : base %08x irq %d\n",ps2if->base,ps2if->irq); + // clear fifo + while ((status = inl(ps2if->base)) & 0xffff0000) { + } + + serio_register_port(ps2if->io); + return 0; + + out: + release_mem_region(dev->resource[0].start,4); + free: + platform_set_drvdata(dev, NULL); + kfree(ps2if); + kfree(serio); + return ret; +} + +/* + * Remove one device from this driver. + */ +static int ps2_remove(struct platform_device *dev) +{ + struct ps2if *ps2if = platform_get_drvdata(dev); + + platform_set_drvdata(dev, NULL); + serio_unregister_port(ps2if->io); + release_mem_region(dev->resource[0].start,4); + + kfree(ps2if); + + return 0; +} + +/* + * Our device driver structure + */ +static struct platform_driver ps2_driver = { + .probe = ps2_probe, + .remove = ps2_remove, + .driver = { + .name = "altps2", + }, +}; + +static int __init ps2_init(void) +{ + return platform_driver_register(&ps2_driver); +} + +static void __exit ps2_exit(void) +{ + platform_driver_unregister(&ps2_driver); +} + +module_init(ps2_init); +module_exit(ps2_exit); diff --git a/arch/nios2nommu/drivers/i2c-gpio.c b/arch/nios2nommu/drivers/i2c-gpio.c new file mode 100644 index 0000000..3f5e51a --- /dev/null +++ b/arch/nios2nommu/drivers/i2c-gpio.c @@ -0,0 +1,166 @@ +/* + * drivers/i2c/busses/i2c-gpio.c for Nios2 + * + * drivers/i2c/busses/i2c-ixp2000.c + * + * I2C adapter for IXP2000 systems using GPIOs for I2C bus + * + * Author: Deepak Saxena + * Based on IXDP2400 code by: Naeem M. Afzal + * Made generic by: Jeff Daly + * + * Copyright (c) 2003-2004 MontaVista Software Inc. + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * From Jeff Daly: + * + * I2C adapter driver for Intel IXDP2xxx platforms. This should work for any + * IXP2000 platform if it uses the HW GPIO in the same manner. Basically, + * SDA and SCL GPIOs have external pullups. Setting the respective GPIO to + * an input will make the signal a '1' via the pullup. Setting them to + * outputs will pull them down. + * + * The GPIOs are open drain signals and are used as configuration strap inputs + * during power-up so there's generally a buffer on the board that needs to be + * 'enabled' to drive the GPIOs. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +static inline int gpio_scl_pin(void *data) +{ + return ((struct gpio_i2c_pins*)data)->scl_pin; +} + +static inline int gpio_sda_pin(void *data) +{ + return ((struct gpio_i2c_pins*)data)->sda_pin; +} + + +static void gpio_bit_setscl(void *data, int val) +{ + int i = 5000; + + if (val) { + outl(3,gpio_scl_pin(data)); + while(!(inl(gpio_scl_pin(data)) & 1) && i--); + } else { + outl(2,gpio_scl_pin(data)); + } +} + +static void gpio_bit_setsda(void *data, int val) +{ + if (val) { + outl(1,gpio_sda_pin(data)); + } else { + outl(0,gpio_sda_pin(data)); + } +} + +static int gpio_bit_getscl(void *data) +{ + return inl(gpio_scl_pin(data)) & 1; +} + +static int gpio_bit_getsda(void *data) +{ + return inl(gpio_sda_pin(data)) & 1; +} + +struct gpio_i2c_data { + struct gpio_i2c_pins *gpio_pins; + struct i2c_adapter adapter; + struct i2c_algo_bit_data algo_data; +}; + +static int gpio_i2c_remove(struct platform_device *plat_dev) +{ + struct gpio_i2c_data *drv_data = platform_get_drvdata(plat_dev); + + platform_set_drvdata(plat_dev, NULL); + + i2c_del_adapter(&drv_data->adapter); + + kfree(drv_data); + + return 0; +} + +static int gpio_i2c_probe(struct platform_device *plat_dev) +{ + int err; + struct gpio_i2c_pins *gpio = plat_dev->dev.platform_data; + struct gpio_i2c_data *drv_data = + kzalloc(sizeof(struct gpio_i2c_data), GFP_KERNEL); + + if (!drv_data) + return -ENOMEM; + drv_data->gpio_pins = gpio; + + drv_data->algo_data.data = gpio; + drv_data->algo_data.setsda = gpio_bit_setsda; + drv_data->algo_data.setscl = gpio_bit_setscl; + drv_data->algo_data.getsda = gpio_bit_getsda; + drv_data->algo_data.getscl = gpio_bit_getscl; + drv_data->algo_data.udelay = 6; + drv_data->algo_data.timeout = 100; + + drv_data->adapter.id = I2C_HW_B_IXP2000, // borrowed, + strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name, + I2C_NAME_SIZE); + drv_data->adapter.algo_data = &drv_data->algo_data, + + drv_data->adapter.dev.parent = &plat_dev->dev; + drv_data->adapter.class = I2C_CLASS_ALL; + + outl(1,gpio->sda_pin); + outl(1,gpio->scl_pin); + + if ((err = i2c_bit_add_bus(&drv_data->adapter)) != 0) { + dev_err(&plat_dev->dev, "Could not install, error %d\n", err); + kfree(drv_data); + return err; + } + + platform_set_drvdata(plat_dev, drv_data); + printk("i2c-gpio driver at %08x\n",gpio->sda_pin); + + return 0; +} + +static struct platform_driver gpio_i2c_driver = { + .probe = gpio_i2c_probe, + .remove = gpio_i2c_remove, + .driver = { + .name = "GPIO-I2C", + .owner = THIS_MODULE, + }, +}; + +static int __init gpio_i2c_init(void) +{ + return platform_driver_register(&gpio_i2c_driver); +} + +static void __exit gpio_i2c_exit(void) +{ + platform_driver_unregister(&gpio_i2c_driver); +} + +module_init(gpio_i2c_init); +module_exit(gpio_i2c_exit); + diff --git a/arch/nios2nommu/drivers/pci/Kconfig b/arch/nios2nommu/drivers/pci/Kconfig new file mode 100644 index 0000000..6c3b175 --- /dev/null +++ b/arch/nios2nommu/drivers/pci/Kconfig @@ -0,0 +1,4 @@ +config PCI_ALTPCI + bool "Altera PCI host bridge" + select PCI + default n diff --git a/arch/nios2nommu/drivers/pci/Makefile b/arch/nios2nommu/drivers/pci/Makefile new file mode 100644 index 0000000..b027e1e --- /dev/null +++ b/arch/nios2nommu/drivers/pci/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the PCI specific kernel interface routines under Linux. +# + +obj-y += pci.o +obj-$(CONFIG_PCI_ALTPCI) += altpci.o setup-irq.o pci-auto.o diff --git a/arch/nios2nommu/drivers/pci/altpci.c b/arch/nios2nommu/drivers/pci/altpci.c new file mode 100644 index 0000000..85959ea --- /dev/null +++ b/arch/nios2nommu/drivers/pci/altpci.c @@ -0,0 +1,204 @@ +/* arch/sh/kernel/pci.c + * $Id: altpci.c,v 1.1 2006/07/05 06:23:17 gerg Exp $ + * + * Copyright (c) 2002 M. R. Brown + * + * + * These functions are collected here to reduce duplication of common + * code amongst the many platform-specific PCI support code files. + * + * These routines require the following board-specific routines: + * void pcibios_fixup_irqs(); + * + * See include/asm-sh/pci.h for more information. + */ + +#include +#include +#include + +/* + * Direct access to PCI hardware... + */ +#define pcicfg_space (na_pci_compiler_0_PCI_Bus_Access) // avalon space +#define pciio (pcicfg_space+0x100000) // pci io device base in avalon space +#define pcimm (pcicfg_space+0x200000) // pci mem device base in avalon space + // idsel of ad11=dev0,ad12=dev1 , using type 0 config request +#define pcicfg(dev,fun,reg) (pcicfg_space | ((dev)<<11) | ((fun)<<8) | (reg)) // cfg space + +// FIX ME for your board, dram device for external pci masters access +static int __init alt_pci_init(void) +{ + unsigned dev,fun; + // setup dram bar + dev=0; fun=0; + outl(nasys_program_mem,pcicfg(dev,fun,0x10)); // mem space + outw(0x0006,pcicfg(dev,fun,0x04)); // enable master, mem space + return 0; +} + +subsys_initcall(alt_pci_init); + +#define PCICFG(bus, devfn, where) (pcicfg_space | (bus->number << 16) | (devfn << 8) | (where & ~3)) +#define ALT_PCI_IO_BASE (pciio) +#define ALT_PCI_IO_SIZE 0x100000 +#define ALT_PCI_MEMORY_BASE (pcimm) +#define ALT_PCI_MEM_SIZE 0x100000 + +/* + * Functions for accessing PCI configuration space with type 1 accesses + */ + +// FIX ME for your board, number of pci bus, and number of devices +static inline int pci_range_ck(struct pci_bus *bus, unsigned int devfn) +{ + if (bus->number > 0 || PCI_SLOT(devfn) == 0 || PCI_SLOT(devfn) > 2) + return -1; + + return 0; +} + +static int alt_pci_read(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + u32 data; + + if (pci_range_ck(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + // local_irq_save(flags); + data = inl(PCICFG(bus, devfn, where)); + // local_irq_restore(flags); + + switch (size) { + case 1: + *val = (data >> ((where & 3) << 3)) & 0xff; + break; + case 2: + *val = (data >> ((where & 2) << 3)) & 0xffff; + break; + case 4: + *val = data; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + return PCIBIOS_SUCCESSFUL; +} + +/* + * we'll do a read, + * mask,write operation. + * We'll allow an odd byte offset, though it should be illegal. + */ +static int alt_pci_write(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + int shift; + u32 data; + + if (pci_range_ck(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + // local_irq_save(flags); + data = inl(PCICFG(bus, devfn, where)); + // local_irq_restore(flags); + + switch (size) { + case 1: + shift = (where & 3) << 3; + data &= ~(0xff << shift); + data |= ((val & 0xff) << shift); + break; + case 2: + shift = (where & 2) << 3; + data &= ~(0xffff << shift); + data |= ((val & 0xffff) << shift); + break; + case 4: + data = val; + break; + default: + return PCIBIOS_FUNC_NOT_SUPPORTED; + } + + outl(data, PCICFG(bus, devfn, where)); + + return PCIBIOS_SUCCESSFUL; +} + +struct pci_ops alt_pci_ops = { + .read = alt_pci_read, + .write = alt_pci_write, +}; + +static struct resource alt_io_resource = { + .name = "ALTPCI IO", + .start = ALT_PCI_IO_BASE, + .end = ALT_PCI_IO_BASE + ALT_PCI_IO_SIZE - 1, + .flags = IORESOURCE_IO +}; + +static struct resource alt_mem_resource = { + .name = "ALTPCI mem", + .start = ALT_PCI_MEMORY_BASE, + .end = ALT_PCI_MEMORY_BASE + ALT_PCI_MEM_SIZE - 1, + .flags = IORESOURCE_MEM +}; + +extern struct pci_ops alt_pci_ops; + +struct pci_channel board_pci_channels[] = { + { &alt_pci_ops, &alt_io_resource, &alt_mem_resource, 0, 0xff }, + { NULL, NULL, NULL, 0, 0 }, +}; + +char *pcibios_setup(char *option) +{ + /* Nothing for us to handle. */ + return(option); +} + +void pcibios_fixup_bus(struct pci_bus *b) +{ +} + +/* + * IRQ functions + */ +static u8 __init altpci_no_swizzle(struct pci_dev *dev, u8 *pin) +{ + /* no swizzling */ + return PCI_SLOT(dev->devfn); +} + +// FIX ME for your board, nios2 irqn mapping +int __init pcibios_map_platform_irq(u8 slot, u8 pin) +{ + int irq = na_irqn_0_irq + ((slot-1)*4) + (pin-1); + // printk("map slot %d pin %d irq %d\n",slot,pin,irq); + return irq; +} + +static int altpci_pci_lookup_irq(struct pci_dev *dev, u8 slot, u8 pin) +{ + int irq = -1; + + /* now lookup the actual IRQ on a platform specific basis (pci-'platform'.c) */ + irq = pcibios_map_platform_irq(slot,pin); + if( irq < 0 ) { + // printk("PCI: Error mapping IRQ on device %s\n", pci_name(dev)); + return irq; + } + + // printk("Setting IRQ for slot %s to %d\n", pci_name(dev), irq); + + return irq; +} + +void __init pcibios_fixup_irqs(void) +{ + pci_fixup_irqs(altpci_no_swizzle, altpci_pci_lookup_irq); +} + diff --git a/arch/nios2nommu/drivers/pci/pci-auto.c b/arch/nios2nommu/drivers/pci/pci-auto.c new file mode 100644 index 0000000..e1cdfdc --- /dev/null +++ b/arch/nios2nommu/drivers/pci/pci-auto.c @@ -0,0 +1,559 @@ +/* + * PCI autoconfiguration library + * + * Author: Matt Porter + * + * Copyright 2000, 2001 MontaVista Software Inc. + * Copyright 2001 Bradley D. LaRonde + * Copyright 2003 Paul Mundt + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +/* + * Modified for MIPS by Jun Sun, jsun@mvista.com + * + * . Simplify the interface between pci_auto and the rest: a single function. + * . Assign resources from low address to upper address. + * . change most int to u32. + * + * Further modified to include it as mips generic code, ppopov@mvista.com. + * + * 2001-10-26 Bradley D. LaRonde + * - Add a top_bus argument to the "early config" functions so that + * they can set a fake parent bus pointer to convince the underlying + * pci ops to use type 1 configuration for sub busses. + * - Set bridge base and limit registers correctly. + * - Align io and memory base properly before and after bridge setup. + * - Don't fall through to pci_setup_bars for bridge. + * - Reformat the debug output to look more like lspci's output. + * + * Cloned for SuperH by M. R. Brown, mrbrown@0xd6.org + * + * 2003-08-05 Paul Mundt + * - Don't update the BAR values on systems that already have valid addresses + * and don't want these updated for whatever reason, by way of a new config + * option check. However, we still read in the old BAR values so that they + * can still be reported through the debug output. + */ + +#include +#include +#include +#include + +#undef DEBUG +#define DEBUG // you can remove debug message here + +#ifdef DEBUG +#define DBG(x...) printk(x) +#else +#define DBG(x...) +#endif + +/* + * These functions are used early on before PCI scanning is done + * and all of the pci_dev and pci_bus structures have been created. + */ +static struct pci_dev *fake_pci_dev(struct pci_channel *hose, + int top_bus, int busnr, int devfn) +{ + static struct pci_dev dev; + static struct pci_bus bus; + + dev.bus = &bus; + dev.sysdata = hose; + dev.devfn = devfn; + bus.number = busnr; + bus.ops = hose->pci_ops; + + if(busnr != top_bus) + /* Fake a parent bus structure. */ + bus.parent = &bus; + else + bus.parent = NULL; + + return &dev; +} + +#define EARLY_PCI_OP(rw, size, type) \ +int early_##rw##_config_##size(struct pci_channel *hose, \ + int top_bus, int bus, int devfn, int offset, type value) \ +{ \ + return pci_##rw##_config_##size( \ + fake_pci_dev(hose, top_bus, bus, devfn), \ + offset, value); \ +} + +EARLY_PCI_OP(read, byte, u8 *) +EARLY_PCI_OP(read, word, u16 *) +EARLY_PCI_OP(read, dword, u32 *) +EARLY_PCI_OP(write, byte, u8) +EARLY_PCI_OP(write, word, u16) +EARLY_PCI_OP(write, dword, u32) + +static struct resource *io_resource_inuse; +static struct resource *mem_resource_inuse; + +static u32 pciauto_lower_iospc; +static u32 pciauto_upper_iospc; + +static u32 pciauto_lower_memspc; +static u32 pciauto_upper_memspc; + +static void __init +pciauto_setup_bars(struct pci_channel *hose, + int top_bus, + int current_bus, + int pci_devfn, + int bar_limit) +{ + u32 bar_response, bar_size, bar_value; + u32 bar, addr_mask, bar_nr = 0; + u32 * upper_limit; + u32 * lower_limit; + int found_mem64 = 0; + + for (bar = PCI_BASE_ADDRESS_0; bar <= bar_limit; bar+=4) { +#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) + u32 bar_addr; + + /* Read the old BAR value */ + early_read_config_dword(hose, top_bus, + current_bus, + pci_devfn, + bar, + &bar_addr); +#endif + + /* Tickle the BAR and get the response */ + early_write_config_dword(hose, top_bus, + current_bus, + pci_devfn, + bar, + 0xffffffff); + + early_read_config_dword(hose, top_bus, + current_bus, + pci_devfn, + bar, + &bar_response); + +#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) + /* + * Write the old BAR value back out, only update the BAR + * if we implicitly want resources to be updated, which + * is done by the generic code further down. -- PFM. + */ + early_write_config_dword(hose, top_bus, + current_bus, + pci_devfn, + bar, + bar_addr); +#endif + + /* If BAR is not implemented go to the next BAR */ + if (!bar_response) + continue; + + /* + * Workaround for a BAR that doesn't use its upper word, + * like the ALi 1535D+ PCI DC-97 Controller Modem (M5457). + * bdl + */ + if (!(bar_response & 0xffff0000)) + bar_response |= 0xffff0000; + +retry: + /* Check the BAR type and set our address mask */ + if (bar_response & PCI_BASE_ADDRESS_SPACE) { + addr_mask = PCI_BASE_ADDRESS_IO_MASK; + upper_limit = &pciauto_upper_iospc; + lower_limit = &pciauto_lower_iospc; + DBG(" I/O"); + } else { + if ((bar_response & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == + PCI_BASE_ADDRESS_MEM_TYPE_64) + found_mem64 = 1; + + addr_mask = PCI_BASE_ADDRESS_MEM_MASK; + upper_limit = &pciauto_upper_memspc; + lower_limit = &pciauto_lower_memspc; + DBG(" Mem"); + } + + + /* Calculate requested size */ + bar_size = ~(bar_response & addr_mask) + 1; + + /* Allocate a base address */ + bar_value = ((*lower_limit - 1) & ~(bar_size - 1)) + bar_size; + + if ((bar_value + bar_size) > *upper_limit) { + if (bar_response & PCI_BASE_ADDRESS_SPACE) { + if (io_resource_inuse->child) { + io_resource_inuse = + io_resource_inuse->child; + pciauto_lower_iospc = + io_resource_inuse->start; + pciauto_upper_iospc = + io_resource_inuse->end + 1; + goto retry; + } + + } else { + if (mem_resource_inuse->child) { + mem_resource_inuse = + mem_resource_inuse->child; + pciauto_lower_memspc = + mem_resource_inuse->start; + pciauto_upper_memspc = + mem_resource_inuse->end + 1; + goto retry; + } + } + DBG(" unavailable -- skipping, value %x size %x\n", + bar_value, bar_size); + continue; + } + +#if 1 + /* Write it out and update our limit */ + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + bar, bar_value); +#endif + + *lower_limit = bar_value + bar_size; + + /* + * If we are a 64-bit decoder then increment to the + * upper 32 bits of the bar and force it to locate + * in the lower 4GB of memory. + */ + if (found_mem64) { + bar += 4; + early_write_config_dword(hose, top_bus, + current_bus, + pci_devfn, + bar, + 0x00000000); + } + + DBG(" at 0x%.8x [size=0x%x]\n", bar_value, bar_size); + + bar_nr++; + } + +} + +static void __init +pciauto_prescan_setup_bridge(struct pci_channel *hose, + int top_bus, + int current_bus, + int pci_devfn, + int sub_bus) +{ + /* Configure bus number registers */ + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_PRIMARY_BUS, current_bus); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SECONDARY_BUS, sub_bus + 1); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SUBORDINATE_BUS, 0xff); + + /* Align memory and I/O to 1MB and 4KB boundaries. */ + pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1)) + & ~(0x100000 - 1); + pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1)) + & ~(0x1000 - 1); + + /* Set base (lower limit) of address range behind bridge. */ + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_MEMORY_BASE, pciauto_lower_memspc >> 16); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_IO_BASE, (pciauto_lower_iospc & 0x0000f000) >> 8); + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_IO_BASE_UPPER16, pciauto_lower_iospc >> 16); + + /* We don't support prefetchable memory for now, so disable */ + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_PREF_MEMORY_BASE, 0); + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_PREF_MEMORY_LIMIT, 0); +} + +static void __init +pciauto_postscan_setup_bridge(struct pci_channel *hose, + int top_bus, + int current_bus, + int pci_devfn, + int sub_bus) +{ + u32 temp; + + /* + * [jsun] we always bump up baselines a little, so that if there + * nothing behind P2P bridge, we don't wind up overlapping IO/MEM + * spaces. + */ + pciauto_lower_memspc += 1; + pciauto_lower_iospc += 1; + + /* Configure bus number registers */ + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SUBORDINATE_BUS, sub_bus); + + /* Set upper limit of address range behind bridge. */ + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_MEMORY_LIMIT, pciauto_lower_memspc >> 16); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_IO_LIMIT, (pciauto_lower_iospc & 0x0000f000) >> 8); + early_write_config_word(hose, top_bus, current_bus, pci_devfn, + PCI_IO_LIMIT_UPPER16, pciauto_lower_iospc >> 16); + + /* Align memory and I/O to 1MB and 4KB boundaries. */ + pciauto_lower_memspc = (pciauto_lower_memspc + (0x100000 - 1)) + & ~(0x100000 - 1); + pciauto_lower_iospc = (pciauto_lower_iospc + (0x1000 - 1)) + & ~(0x1000 - 1); + + /* Enable memory and I/O accesses, enable bus master */ + early_read_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, &temp); + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY + | PCI_COMMAND_MASTER); +} + +static void __init +pciauto_prescan_setup_cardbus_bridge(struct pci_channel *hose, + int top_bus, + int current_bus, + int pci_devfn, + int sub_bus) +{ + /* Configure bus number registers */ + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_PRIMARY_BUS, current_bus); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SECONDARY_BUS, sub_bus + 1); + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SUBORDINATE_BUS, 0xff); + + /* Align memory and I/O to 4KB and 4 byte boundaries. */ + pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1)) + & ~(0x1000 - 1); + pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1)) + & ~(0x4 - 1); + + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_CB_MEMORY_BASE_0, pciauto_lower_memspc); + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_CB_IO_BASE_0, pciauto_lower_iospc); +} + +static void __init +pciauto_postscan_setup_cardbus_bridge(struct pci_channel *hose, + int top_bus, + int current_bus, + int pci_devfn, + int sub_bus) +{ + u32 temp; + +#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) + /* + * [jsun] we always bump up baselines a little, so that if there + * nothing behind P2P bridge, we don't wind up overlapping IO/MEM + * spaces. + */ + pciauto_lower_memspc += 1; + pciauto_lower_iospc += 1; +#endif + + /* + * Configure subordinate bus number. The PCI subsystem + * bus scan will renumber buses (reserving three additional + * for this PCI<->CardBus bridge for the case where a CardBus + * adapter contains a P2P or CB2CB bridge. + */ + + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_SUBORDINATE_BUS, sub_bus); + + /* + * Reserve an additional 4MB for mem space and 16KB for + * I/O space. This should cover any additional space + * requirement of unusual CardBus devices with + * additional bridges that can consume more address space. + * + * Although pcmcia-cs currently will reprogram bridge + * windows, the goal is to add an option to leave them + * alone and use the bridge window ranges as the regions + * that are searched for free resources upon hot-insertion + * of a device. This will allow a PCI<->CardBus bridge + * configured by this routine to happily live behind a + * P2P bridge in a system. + */ +#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) + pciauto_lower_memspc += 0x00400000; + pciauto_lower_iospc += 0x00004000; +#endif + + /* Align memory and I/O to 4KB and 4 byte boundaries. */ + pciauto_lower_memspc = (pciauto_lower_memspc + (0x1000 - 1)) + & ~(0x1000 - 1); + pciauto_lower_iospc = (pciauto_lower_iospc + (0x4 - 1)) + & ~(0x4 - 1); + /* Set up memory and I/O filter limits, assume 32-bit I/O space */ + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_CB_MEMORY_LIMIT_0, pciauto_lower_memspc - 1); + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_CB_IO_LIMIT_0, pciauto_lower_iospc - 1); + + /* Enable memory and I/O accesses, enable bus master */ + early_read_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, &temp); + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, temp | PCI_COMMAND_IO | PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER); +} + +#define PCIAUTO_IDE_MODE_MASK 0x05 + +static int __init +pciauto_bus_scan(struct pci_channel *hose, int top_bus, int current_bus) +{ + int sub_bus; + u32 pci_devfn, pci_class, cmdstat, found_multi=0; + unsigned short vid, did; + unsigned char header_type; + int devfn_start = 0; + int devfn_stop = 0xff; + + sub_bus = current_bus; + + if (hose->first_devfn) + devfn_start = hose->first_devfn; + if (hose->last_devfn) + devfn_stop = hose->last_devfn; + + for (pci_devfn=devfn_start; pci_devfn> 16, vid, did); + if (pci_class & 0xff) + DBG(" (rev %.2x)", pci_class & 0xff); + DBG("\n"); + + if ((pci_class >> 16) == PCI_CLASS_BRIDGE_PCI) { + DBG(" Bridge: primary=%.2x, secondary=%.2x\n", + current_bus, sub_bus + 1); +#if defined(CONFIG_SH_HS7751RVOIP) || defined(CONFIG_SH_RTS7751R2D) + pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_1); +#endif + pciauto_prescan_setup_bridge(hose, top_bus, current_bus, + pci_devfn, sub_bus); + DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", + sub_bus + 1, + pciauto_lower_iospc, pciauto_lower_memspc); + sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1); + DBG("Back to bus %.2x\n", current_bus); + pciauto_postscan_setup_bridge(hose, top_bus, current_bus, + pci_devfn, sub_bus); + continue; + } else if ((pci_class >> 16) == PCI_CLASS_BRIDGE_CARDBUS) { + DBG(" CARDBUS Bridge: primary=%.2x, secondary=%.2x\n", + current_bus, sub_bus + 1); + DBG("PCI Autoconfig: Found CardBus bridge, device %d function %d\n", PCI_SLOT(pci_devfn), PCI_FUNC(pci_devfn)); + /* Place CardBus Socket/ExCA registers */ + pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_0); + + pciauto_prescan_setup_cardbus_bridge(hose, top_bus, + current_bus, pci_devfn, sub_bus); + + DBG("Scanning sub bus %.2x, I/O 0x%.8x, Mem 0x%.8x\n", + sub_bus + 1, + pciauto_lower_iospc, pciauto_lower_memspc); + sub_bus = pciauto_bus_scan(hose, top_bus, sub_bus+1); + DBG("Back to bus %.2x, sub_bus is %x\n", current_bus, sub_bus); + pciauto_postscan_setup_cardbus_bridge(hose, top_bus, + current_bus, pci_devfn, sub_bus); + continue; + } else if ((pci_class >> 16) == PCI_CLASS_STORAGE_IDE) { + + unsigned char prg_iface; + + early_read_config_byte(hose, top_bus, current_bus, + pci_devfn, PCI_CLASS_PROG, &prg_iface); + if (!(prg_iface & PCIAUTO_IDE_MODE_MASK)) { + DBG("Skipping legacy mode IDE controller\n"); + continue; + } + } + + /* + * Found a peripheral, enable some standard + * settings + */ + early_read_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, &cmdstat); + early_write_config_dword(hose, top_bus, current_bus, pci_devfn, + PCI_COMMAND, cmdstat | PCI_COMMAND_IO | + PCI_COMMAND_MEMORY | + PCI_COMMAND_MASTER); +#if !defined(CONFIG_SH_HS7751RVOIP) && !defined(CONFIG_SH_RTS7751R2D) + early_write_config_byte(hose, top_bus, current_bus, pci_devfn, + PCI_LATENCY_TIMER, 0x80); +#endif + + /* Allocate PCI I/O and/or memory space */ + pciauto_setup_bars(hose, top_bus, current_bus, pci_devfn, PCI_BASE_ADDRESS_5); + } + return sub_bus; +} + +int __init +pciauto_assign_resources(int busno, struct pci_channel *hose) +{ + /* setup resource limits */ + io_resource_inuse = hose->io_resource; + mem_resource_inuse = hose->mem_resource; + + pciauto_lower_iospc = io_resource_inuse->start; + pciauto_upper_iospc = io_resource_inuse->end + 1; + pciauto_lower_memspc = mem_resource_inuse->start; + pciauto_upper_memspc = mem_resource_inuse->end + 1; + DBG("Autoconfig PCI channel 0x%p\n", hose); + DBG("Scanning bus %.2x, I/O 0x%.8x:0x%.8x, Mem 0x%.8x:0x%.8x\n", + busno, pciauto_lower_iospc, pciauto_upper_iospc, + pciauto_lower_memspc, pciauto_upper_memspc); + + return pciauto_bus_scan(hose, busno, busno); +} diff --git a/arch/nios2nommu/drivers/pci/pci.c b/arch/nios2nommu/drivers/pci/pci.c new file mode 100644 index 0000000..83436df --- /dev/null +++ b/arch/nios2nommu/drivers/pci/pci.c @@ -0,0 +1,151 @@ +/* arch/sh/kernel/pci.c + * $Id: pci.c,v 1.2 2007/01/25 01:26:48 gerg Exp $ + * + * Copyright (c) 2002 M. R. Brown + * + * + * These functions are collected here to reduce duplication of common + * code amongst the many platform-specific PCI support code files. + * + * These routines require the following board-specific routines: + * void pcibios_fixup_irqs(); + * + * See include/asm-sh/pci.h for more information. + */ + +#include +#include +#include + +static int __init pcibios_init(void) +{ + struct pci_channel *p; + struct pci_bus *bus; + int busno; + +#if 1 + /* assign resources */ + busno = 0; + for (p = board_pci_channels; p->pci_ops != NULL; p++) { + busno = pciauto_assign_resources(busno, p) + 1; + } +#endif + + /* scan the buses */ + busno = 0; + for (p= board_pci_channels; p->pci_ops != NULL; p++) { + bus = pci_scan_bus(busno, p->pci_ops, p); + busno = bus->subordinate+1; + } + + /* board-specific fixups */ + pcibios_fixup_irqs(); + + return 0; +} + +subsys_initcall(pcibios_init); + +void +pcibios_update_resource(struct pci_dev *dev, struct resource *root, + struct resource *res, int resource) +{ + u32 new, check; + int reg; + + new = res->start | (res->flags & PCI_REGION_FLAG_MASK); + if (resource < 6) { + reg = PCI_BASE_ADDRESS_0 + 4*resource; + } else if (resource == PCI_ROM_RESOURCE) { + res->flags |= IORESOURCE_ROM_ENABLE; + new |= PCI_ROM_ADDRESS_ENABLE; + reg = dev->rom_base_reg; + } else { + /* Somebody might have asked allocation of a non-standard resource */ + return; + } + + pci_write_config_dword(dev, reg, new); + pci_read_config_dword(dev, reg, &check); + if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) { + printk(KERN_ERR "PCI: Error while updating region " + "%s/%d (%08x != %08x)\n", pci_name(dev), resource, + new, check); + } +} + +/* + * We need to avoid collisions with `mirrored' VGA ports + * and other strange ISA hardware, so we always want the + * addresses to be allocated in the 0x000-0x0ff region + * modulo 0x400. + */ +void pcibios_align_resource(void *data, struct resource *res, + resource_size_t size, resource_size_t align) +{ + if (res->flags & IORESOURCE_IO) { + unsigned long start = res->start; + + if (start & 0x300) { + start = (start + 0x3ff) & ~0x3ff; + res->start = start; + } + } +} + +int pcibios_enable_device(struct pci_dev *dev, int mask) +{ + u16 cmd, old_cmd; + int idx; + struct resource *r; + + pci_read_config_word(dev, PCI_COMMAND, &cmd); + old_cmd = cmd; + for(idx=0; idx<6; idx++) { + if (!(mask & (1 << idx))) + continue; + r = &dev->resource[idx]; + if (!r->start && r->end) { + printk(KERN_ERR "PCI: Device %s not available because " + "of resource collisions\n", pci_name(dev)); + return -EINVAL; + } + if (r->flags & IORESOURCE_IO) + cmd |= PCI_COMMAND_IO; + if (r->flags & IORESOURCE_MEM) + cmd |= PCI_COMMAND_MEMORY; + } + if (dev->resource[PCI_ROM_RESOURCE].start) + cmd |= PCI_COMMAND_MEMORY; + if (cmd != old_cmd) { + printk(KERN_INFO "PCI: Enabling device %s (%04x -> %04x)\n", + pci_name(dev), old_cmd, cmd); + pci_write_config_word(dev, PCI_COMMAND, cmd); + } + return 0; +} + +/* + * If we set up a device for bus mastering, we need to check and set + * the latency timer as it may not be properly set. + */ +unsigned int pcibios_max_latency = 255; + +void pcibios_set_master(struct pci_dev *dev) +{ + u8 lat; + pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat); + if (lat < 16) + lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency; + else if (lat > pcibios_max_latency) + lat = pcibios_max_latency; + else + return; + printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat); + pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); +} + +void __init pcibios_update_irq(struct pci_dev *dev, int irq) +{ + pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); +} diff --git a/arch/nios2nommu/drivers/pci/setup-irq.c b/arch/nios2nommu/drivers/pci/setup-irq.c new file mode 100644 index 0000000..0fa8f98 --- /dev/null +++ b/arch/nios2nommu/drivers/pci/setup-irq.c @@ -0,0 +1 @@ +#include "../../../../drivers/pci/setup-irq.c" diff --git a/arch/nios2nommu/drivers/spi.c b/arch/nios2nommu/drivers/spi.c new file mode 100644 index 0000000..72a2519 --- /dev/null +++ b/arch/nios2nommu/drivers/spi.c @@ -0,0 +1,315 @@ +#ifdef MODULE +#include +#include +#else +#define MOD_INC_USE_COUNT +#define MOD_DEC_USE_COUNT +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +#include +#include +#include +#include + +#if !defined(SEEK_SET) +#define SEEK_SET 0 +#endif + + +static unsigned int spi_major = 60; /* a local major, can be overwritten */ +static int openflag = 0; +static np_spi * const spi_ptr = na_spi; + + /*******************************/ + /* SPI data transfer routines. */ + /*******************************/ + +#define SPI_XMIT_READY np_spistatus_trdy_mask +#define SPI_RECV_READY np_spistatus_rrdy_mask + +#define SPI_BUSYPOLL_TIMEOUT 1000 + +// returns -1 if there is no data present, otherwise returns +// the value +inline int SPI_Recv_Byte(char *pdata ) +{ + if (spi_ptr->np_spistatus & SPI_RECV_READY){ + *pdata = spi_ptr->np_spirxdata & 0xff; + return 0; + } + return -1; +} + + +// Sends the 16 bit address+data +inline int SPI_Send_Byte( unsigned char address, char data ) +{ + u16 value = ((address & 0xFF) << 8) | (data & 0xFF); + + if ( spi_ptr->np_spistatus & SPI_XMIT_READY ) { + spi_ptr->np_spitxdata = value; + return 0; + } + + return -1; +} + + + + /*************************/ + /* SPI Driver functions. */ + /*************************/ + +int spi_reset( void ) +{ + // Nothing to do: The Nios does _not_ + // support burst xfers. Chip Enables + // (Selects) are inactive after each xfer. + return 0; +} + + +/***************************************************/ +/* The SPI Write routine. The first 16 bits are */ +/* the device register, and the rest of the buffer */ +/* is data. */ +/***************************************************/ + +ssize_t spi_write(struct file *filp, const char *buf, size_t count, loff_t *ppos) +{ + int i; + unsigned char addr; + int timeout; + char temp; + + if ( count < 3 ) + return -EINVAL; /* Address is 2 bytes: Must have _something_ to send */ + + addr = buf[0]; /* chip register address. */ + spi_ptr->np_spistatus=0; + + for ( i = sizeof(u16); inp_spistatus=0; + + /* empty the np_spirxdata register */ + SPI_Recv_Byte(&temp); + + for ( i = sizeof(u16); i 1 ) + { + errno = -EINVAL; + return -1; + } + } + } +#endif + spi_ptr->np_spislaveselect = offset; + return 0; +} + +int spi_open(struct inode *inode, struct file *filp) +{ + preempt_disable(); + if (openflag) { + preempt_enable(); + return -EBUSY; + } + + MOD_INC_USE_COUNT; + openflag = 1; + preempt_enable(); + + return 0; +} + +int spi_release(struct inode *inode, struct file *filp) +{ + openflag = 0; + MOD_DEC_USE_COUNT; + return 0; +} + + +/* static struct file_operations spi_fops */ + +static struct file_operations spi_fops = { + llseek: spi_lseek, /* Set chip-select line. The offset is used as an address. */ + read: spi_read, + write: spi_write, + open: spi_open, + release: spi_release, +}; + + +int register_NIOS_SPI( void ) +{ + int result = register_chrdev( spi_major, "spi", &spi_fops ); + if ( result < 0 ) + { + printk( "SPI: unable to get major %d for SPI bus \n", spi_major ); + return result; + }/*end-if*/ + + if ( spi_major == 0 ) + spi_major = result; /* here we got our major dynamically */ + + /* reserve our port, but check first if free */ + if ( check_region( (unsigned int)na_spi, sizeof(np_spi) ) ) + { + printk( "SPI: port at adr 0x%08x already occupied\n", (unsigned int)na_spi ); + unregister_chrdev( spi_major, "spi" ); + + return result; + }/*end-if*/ + + return 0; +} + +void unregister_NIOS_SPI( void ) +{ + if ( spi_major > 0 ) + unregister_chrdev( spi_major, "spi" ); + + release_region( (unsigned int)na_spi, sizeof(np_spi) ); +} + + +#ifdef MODULE +void cleanup_module( void ) +{ + unregister_NIOS_SPI(); +} + + + +int init_module( void ) +{ + return register_NIOS_SPI(); +} +#endif + + +static int __init nios_spi_init(void) +{ + printk("SPI: Nios SPI bus device version 0.1\n"); + return register_NIOS_SPI(); +// if ( register_NIOS_SPI() ) +// printk("*** Cannot initialize SPI device.\n"); +} + +__initcall(nios_spi_init); diff --git a/arch/nios2nommu/kernel/ChangeLog b/arch/nios2nommu/kernel/ChangeLog new file mode 100644 index 0000000..7f1449d --- /dev/null +++ b/arch/nios2nommu/kernel/ChangeLog @@ -0,0 +1,27 @@ +2004-06-17 Ken Hill + + * process.c (machine_restart): Add code to disable interrups and + jump to the cpu reset address. + (machine_halt): Add code to disable interrupts and spinlock. + (machine_power_off): Add code to disable interrupts and spinlock. + +2004-06-16 Ken Hill + + * nios2_ksyms.c: Remove hard_reset_now. + +2004-06-10 Ken Hill + + * nios2_ksyms.c: Add EXPORT_SYMBOL_NOVERS(__down) to solve insmod for + some modules. + +2004-06-02 Ken Hill + + * entry.S (software_exception): Add a safety catch for old applications that may + have been linked against an older library. This does not add any overhead to + system call processing. + +2004-04-15 Ken Hill + + * setup.c (setup_arch): Remove ROMFS message from debug printk kernel message. + Add copyright and GNU license notice. + diff --git a/arch/nios2nommu/kernel/Makefile b/arch/nios2nommu/kernel/Makefile new file mode 100644 index 0000000..a056ff1 --- /dev/null +++ b/arch/nios2nommu/kernel/Makefile @@ -0,0 +1,22 @@ +# +# Makefile for the linux kernel. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# +# Note 2! The CFLAGS definitions are now in the main makefile... + +extra-y := head.o init_task.o vmlinux.lds + +obj-y := entry.o traps.o irq.o syscalltable.o \ + process.o signal.o setup.o sys_nios2.o \ + semaphore.o io.o usb.o\ + time.o ptrace.o start.o nios2_ksyms.o + +obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_CONSOLE) += console.o +obj-$(CONFIG_PIO_DEVICES) += pio.o +obj-$(CONFIG_AVALON_DMA) += dma.o + + diff --git a/arch/nios2nommu/kernel/asm-offsets.c b/arch/nios2nommu/kernel/asm-offsets.c new file mode 100644 index 0000000..4877eba --- /dev/null +++ b/arch/nios2nommu/kernel/asm-offsets.c @@ -0,0 +1,201 @@ +/* + * This program is used to generate definitions needed by + * assembly language modules. + * + * We use the technique used in the OSF Mach kernel code: + * generate asm statements containing #defines, + * compile this file to assembler, and then extract the + * #defines from the assembly-language output. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define DEFINE(sym, val) \ + asm volatile("\n->" #sym " %0 " #val : : "i" (val)) + +#define BLANK() asm volatile("\n->" : : ) + +int main(void) +{ + + /* offsets into the task struct */ + DEFINE(TASK_STATE, offsetof(struct task_struct, state)); + DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags)); + DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace)); + DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked)); + DEFINE(TASK_THREAD, offsetof(struct task_struct, thread)); + DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack)); + DEFINE(TASK_MM, offsetof(struct task_struct, mm)); + DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm)); + + /* offsets into the kernel_stat struct */ + DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs)); + + /* offsets into the irq_cpustat_t struct */ + DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending)); + + /* offsets into the irq_node struct */ + DEFINE(IRQ_HANDLER, offsetof(struct irq_hand, handler)); + DEFINE(IRQ_FLAGS, offsetof(struct irq_hand, flags)); + DEFINE(IRQ_DEV_ID, offsetof(struct irq_hand, dev_id)); + DEFINE(IRQ_DEVNAME, offsetof(struct irq_hand, devname)); + + /* offsets into the thread struct */ + DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp)); + DEFINE(THREAD_KPSR, offsetof(struct thread_struct, kpsr)); + DEFINE(THREAD_KESR, offsetof(struct thread_struct, kesr)); + DEFINE(THREAD_FLAGS, offsetof(struct thread_struct, flags)); + + /* offsets into the pt_regs */ + DEFINE(PT_ORIG_R2, offsetof(struct pt_regs, orig_r2)); + DEFINE(PT_R1, offsetof(struct pt_regs, r1)); + DEFINE(PT_R2, offsetof(struct pt_regs, r2)); + DEFINE(PT_R3, offsetof(struct pt_regs, r3)); + DEFINE(PT_R4, offsetof(struct pt_regs, r4)); + DEFINE(PT_R5, offsetof(struct pt_regs, r5)); + DEFINE(PT_R6, offsetof(struct pt_regs, r6)); + DEFINE(PT_R7, offsetof(struct pt_regs, r7)); + DEFINE(PT_R8, offsetof(struct pt_regs, r8)); + DEFINE(PT_R9, offsetof(struct pt_regs, r9)); + DEFINE(PT_R10, offsetof(struct pt_regs, r10)); + DEFINE(PT_R11, offsetof(struct pt_regs, r11)); + DEFINE(PT_R12, offsetof(struct pt_regs, r12)); + DEFINE(PT_R13, offsetof(struct pt_regs, r13)); + DEFINE(PT_R14, offsetof(struct pt_regs, r14)); + DEFINE(PT_R15, offsetof(struct pt_regs, r15)); + DEFINE(PT_EA, offsetof(struct pt_regs, ea)); + DEFINE(PT_RA, offsetof(struct pt_regs, ra)); + DEFINE(PT_FP, offsetof(struct pt_regs, fp)); + DEFINE(PT_SP, offsetof(struct pt_regs, sp)); + DEFINE(PT_GP, offsetof(struct pt_regs, gp)); + DEFINE(PT_ESTATUS, offsetof(struct pt_regs, estatus)); + DEFINE(PT_STATUS_EXTENSION, offsetof(struct pt_regs, status_extension)); + DEFINE(PT_REGS_SIZE, sizeof(struct pt_regs)); + + /* offsets into the switch_stack */ + DEFINE(SW_R16, offsetof(struct switch_stack, r16)); + DEFINE(SW_R17, offsetof(struct switch_stack, r17)); + DEFINE(SW_R18, offsetof(struct switch_stack, r18)); + DEFINE(SW_R19, offsetof(struct switch_stack, r19)); + DEFINE(SW_R20, offsetof(struct switch_stack, r20)); + DEFINE(SW_R21, offsetof(struct switch_stack, r21)); + DEFINE(SW_R22, offsetof(struct switch_stack, r22)); + DEFINE(SW_R23, offsetof(struct switch_stack, r23)); + DEFINE(SW_FP, offsetof(struct switch_stack, fp)); + DEFINE(SW_GP, offsetof(struct switch_stack, gp)); + DEFINE(SW_RA, offsetof(struct switch_stack, ra)); + DEFINE(SWITCH_STACK_SIZE, sizeof(struct switch_stack)); + + DEFINE(PS_S_ASM, PS_S); + + DEFINE(NIOS2_STATUS_PIE_MSK_ASM, NIOS2_STATUS_PIE_MSK); + DEFINE(NIOS2_STATUS_PIE_OFST_ASM, NIOS2_STATUS_PIE_OFST); + DEFINE(NIOS2_STATUS_U_MSK_ASM, NIOS2_STATUS_U_MSK); + DEFINE(NIOS2_STATUS_U_OFST_ASM, NIOS2_STATUS_U_OFST); + + /* offsets into the kernel_stat struct */ + DEFINE(STAT_IRQ, offsetof(struct kernel_stat, irqs)); + + /* Offsets in thread_info structure, used in assembly code */ + DEFINE(TI_TASK, offsetof(struct thread_info, task)); + DEFINE(TI_EXECDOMAIN, offsetof(struct thread_info, exec_domain)); + DEFINE(TI_FLAGS, offsetof(struct thread_info, flags)); + DEFINE(TI_CPU, offsetof(struct thread_info, cpu)); + DEFINE(TI_PREEMPT_COUNT, offsetof(struct thread_info, preempt_count)); + + DEFINE(PREEMPT_ACTIVE_ASM, PREEMPT_ACTIVE); + + DEFINE(THREAD_SIZE_ASM, THREAD_SIZE); + + DEFINE(TIF_SYSCALL_TRACE_ASM, TIF_SYSCALL_TRACE); + DEFINE(TIF_NOTIFY_RESUME_ASM, TIF_NOTIFY_RESUME); + DEFINE(TIF_SIGPENDING_ASM, TIF_SIGPENDING); + DEFINE(TIF_NEED_RESCHED_ASM, TIF_NEED_RESCHED); + DEFINE(TIF_POLLING_NRFLAG_ASM, TIF_POLLING_NRFLAG); + + DEFINE(_TIF_SYSCALL_TRACE_ASM, _TIF_SYSCALL_TRACE); + DEFINE(_TIF_NOTIFY_RESUME_ASM, _TIF_NOTIFY_RESUME); + DEFINE(_TIF_SIGPENDING_ASM, _TIF_SIGPENDING); + DEFINE(_TIF_NEED_RESCHED_ASM, _TIF_NEED_RESCHED); + DEFINE(_TIF_POLLING_NRFLAG_ASM, _TIF_POLLING_NRFLAG); + + DEFINE(_TIF_WORK_MASK_ASM, _TIF_WORK_MASK); + +#if defined(na_flash_kernel) && defined(na_flash_kernel_end) + /* the flash chip */ + DEFINE(NIOS_FLASH_START, na_flash_kernel); + DEFINE(NIOS_FLASH_END, na_flash_kernel_end); + + /* the kernel placement in the flash*/ + DEFINE(KERNEL_FLASH_START, na_flash_kernel); + DEFINE(KERNEL_FLASH_LEN, 0x200000); + + /* the romdisk placement in the flash */ + DEFINE(LINUX_ROMFS_START, na_flash_kernel+0x200000); + DEFINE(LINUX_ROMFS_END, na_flash_kernel_end); +#else +#error Sorry,you dont have na_flash_kernel or na_flash_kernel_end defined in the core. +#endif + +#if defined(nasys_program_mem) && defined(nasys_program_mem_end) + /* the sdram */ + DEFINE(LINUX_SDRAM_START, nasys_program_mem); + DEFINE(LINUX_SDRAM_END, nasys_program_mem_end); +#else +#error Sorry,you dont have nasys_program_mem or nasys_program_mem_end defined in the core. +#endif + + DEFINE(NIOS2_ICACHE_SIZE, nasys_icache_size); + DEFINE(NIOS2_ICACHE_LINE_SIZE, nasys_icache_line_size); + DEFINE(NIOS2_DCACHE_SIZE, nasys_dcache_size); + DEFINE(NIOS2_DCACHE_LINE_SIZE, nasys_dcache_line_size); + +#if defined(na_enet) + DEFINE(NA_ENET_ASM, na_enet); +#endif + +#if defined(na_enet_reset) + DEFINE(NA_ENET_RESET_ASM, na_enet_reset); +#endif + +#if defined(na_enet_reset_n) + DEFINE(NA_ENET_RESET_N_ASM, na_enet_reset_n); +#endif + +#if defined(na_ide_interface) + DEFINE(NA_IDE_INTERFACE_ASM, na_ide_interface); +#endif + +#if defined(na_timer0) + DEFINE(NA_TIMER0_ASM, na_timer0); + DEFINE(NP_TIMERCONTROL_ASM, offsetof(np_timer, np_timercontrol)); + DEFINE(NP_TIMERSTATUS_ASM, offsetof(np_timer, np_timerstatus)); +#endif + +#if defined(na_uart0) + DEFINE(NA_UART0_ASM, na_uart0); + DEFINE(NP_UARTCONTROL_ASM, offsetof(np_uart, np_uartcontrol)); + DEFINE(NP_UARTSTATUS_ASM, offsetof(np_uart, np_uartstatus)); +#endif + +#if defined(na_uart1) + DEFINE(NA_UART1_ASM, na_uart1); +#endif + +#if defined(na_uart2) + DEFINE(NA_UART2_ASM, na_uart2); +#endif + +#if defined(na_uart3) + DEFINE(NA_UART3_ASM, na_uart3); +#endif + + return 0; +} diff --git a/arch/nios2nommu/kernel/dma.c b/arch/nios2nommu/kernel/dma.c new file mode 100644 index 0000000..f23323b --- /dev/null +++ b/arch/nios2nommu/kernel/dma.c @@ -0,0 +1,342 @@ +/* + * arch/nios2nommu/kernel/dma.c + * + * Copyright (C) 2005 Microtronix Datacom Ltd + * + * PC like DMA API for Nios's DMAC. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Written by Wentao Xu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* nios2 dma controller register map */ +#define REG_DMA_STATUS 0 +#define REG_DMA_READADDR 4 +#define REG_DMA_WRITEADDR 8 +#define REG_DMA_LENGTH 12 +#define REG_DMA_CONTROL 24 + +/* status register bits definition */ +#define ST_DONE 0x01 +#define ST_BUSY 0x02 +#define ST_REOP 0x04 +#define ST_WROP 0x08 +#define ST_LEN 0x10 + +/* control register bits definition */ +#define CT_BYTE 0x01 +#define CT_HW 0x02 +#define CT_WORD 0x04 +#define CT_GO 0x08 +#define CT_IEEN 0x10 +#define CT_REEN 0x20 +#define CT_WEEN 0x40 +#define CT_LEEN 0x80 +#define CT_RCON 0x100 +#define CT_WCON 0x200 +#define CT_DOUBLE 0x400 +#define CT_QUAD 0x800 + +struct dma_channel { + unsigned int addr; /* control address */ + unsigned int irq; /* interrupt number */ + atomic_t idle; + unsigned int mode; /* dma mode: width, stream etc */ + int (*handler)(void*, int ); + void* user; + + char id[16]; + char dev_id[16]; +}; +static struct dma_channel dma_channels[]={ +#ifdef na_dma_0 + { + .addr = na_dma_0, + .irq = na_dma_0_irq, + .idle = ATOMIC_INIT(1), + }, +#endif +#ifdef na_dma_1 + { + .addr = na_dma_1, + .irq = na_dma_1_irq, + .idle = ATOMIC_INIT(1), + }, +#endif +}; +#define MAX_DMA_CHANNELS sizeof(dma_channels)/sizeof(struct dma_channel) + +void enable_dma(unsigned int dmanr) +{ + if (dmanr < MAX_DMA_CHANNELS) { + unsigned int ctl = dma_channels[dmanr].mode; + ctl |= CT_GO | CT_IEEN; + outl(ctl, dma_channels[dmanr].addr+REG_DMA_CONTROL); + } +} + +void disable_dma(unsigned int dmanr) +{ + if (dmanr < MAX_DMA_CHANNELS) { + unsigned int ctl = dma_channels[dmanr].mode; + ctl &= ~(CT_GO | CT_IEEN); + outl(ctl, dma_channels[dmanr].addr+REG_DMA_CONTROL); + } +} + +void set_dma_count(unsigned int dmanr, unsigned int count) +{ + if (dmanr < MAX_DMA_CHANNELS) { + dma_channels[dmanr].mode |= CT_LEEN; + outl(count, dma_channels[dmanr].addr+REG_DMA_LENGTH); + } +} + +int get_dma_residue(unsigned int dmanr) +{ + int result =-1; + if (dmanr < MAX_DMA_CHANNELS) { + result = inl(dma_channels[dmanr].addr+REG_DMA_LENGTH); + } + return result; +} + +int request_dma(unsigned int chan, const char *dev_id) +{ + struct dma_channel *channel; + + if ( chan >= MAX_DMA_CHANNELS) { + return -EINVAL; + } + + channel = &dma_channels[chan]; + + if (!atomic_dec_and_test(&channel->idle)) { + return -EBUSY; + } + + strlcpy(channel->dev_id, dev_id, sizeof(channel->dev_id)); + channel->handler=NULL; + channel->user=NULL; + channel->mode =0; + + return 0; +} + +void free_dma(unsigned int chan) +{ + if ( chan < MAX_DMA_CHANNELS) { + dma_channels[chan].handler=NULL; + dma_channels[chan].user=NULL; + atomic_set(&dma_channels[chan].idle, 1); + } +} + +int nios2_request_dma(const char *dev_id) +{ + int chann; + + for ( chann=0; chann < MAX_DMA_CHANNELS; chann++) { + if (request_dma(chann, dev_id)==0) + return chann; + } + + return -EINVAL; +} +void nios2_set_dma_handler(unsigned int dmanr, int (*handler)(void*, int), void* user) +{ + if (dmanr < MAX_DMA_CHANNELS) { + dma_channels[dmanr].handler=handler; + dma_channels[dmanr].user=user; + } +} +#define NIOS2_DMA_WIDTH_MASK (CT_BYTE | CT_HW | CT_WORD | CT_DOUBLE | CT_QUAD) +#define NIOS2_MODE_MASK (NIOS2_DMA_WIDTH_MASK | CT_REEN | CT_WEEN | CT_LEEN | CT_RCON | CT_WCON) +void nios2_set_dma_data_width(unsigned int dmanr, unsigned int width) +{ + if (dmanr < MAX_DMA_CHANNELS) { + dma_channels[dmanr].mode &= ~NIOS2_DMA_WIDTH_MASK; + switch (width) { + case 1: + dma_channels[dmanr].mode |= CT_BYTE; + break; + case 2: + dma_channels[dmanr].mode |= CT_HW; + break; + case 8: + dma_channels[dmanr].mode |= CT_DOUBLE; + break; + case 16: + dma_channels[dmanr].mode |= CT_QUAD; + break; + case 4: + default: + dma_channels[dmanr].mode |= CT_WORD; + break; + } + } +} + +void nios2_set_dma_rcon(unsigned int dmanr,unsigned int set) +{ + if (dmanr < MAX_DMA_CHANNELS) { + dma_channels[dmanr].mode &= ~(CT_REEN | CT_RCON); + if (set) + dma_channels[dmanr].mode |= (CT_REEN | CT_RCON); + } +} +void nios2_set_dma_wcon(unsigned int dmanr,unsigned int set) +{ + if (dmanr < MAX_DMA_CHANNELS) { + dma_channels[dmanr].mode &= ~(CT_WEEN | CT_WCON); + if (set) + dma_channels[dmanr].mode |= (CT_WEEN | CT_WCON); + } +} +void nios2_set_dma_mode(unsigned int dmanr, unsigned int mode) +{ + if (dmanr < MAX_DMA_CHANNELS) { + /* set_dma_mode is only allowed to change the bus width, + stream setting, etc. + */ + mode &= NIOS2_MODE_MASK; + dma_channels[dmanr].mode &= ~NIOS2_MODE_MASK; + dma_channels[dmanr].mode |= mode; + } +} + +void nios2_set_dma_raddr(unsigned int dmanr, unsigned int a) +{ + if (dmanr < MAX_DMA_CHANNELS) { + outl(a, dma_channels[dmanr].addr+REG_DMA_READADDR); + } +} +void nios2_set_dma_waddr(unsigned int dmanr, unsigned int a) +{ + if (dmanr < MAX_DMA_CHANNELS) { + outl(a, dma_channels[dmanr].addr+REG_DMA_WRITEADDR); + } +} + + +static irqreturn_t dma_isr(int irq, void *dev_id) +{ + struct dma_channel *chann=(struct dma_channel*)dev_id; + + if (chann) { + int status = inl(chann->addr+REG_DMA_STATUS); + /* ack the interrupt, and clear the DONE bit */ + outl(0, chann->addr+REG_DMA_STATUS); + /* call the peripheral callback */ + if (chann->handler) + chann->handler(chann->user, status); + } + + return IRQ_HANDLED; +} + + + +#ifdef CONFIG_PROC_FS +static int proc_dma_show(struct seq_file *m, void *v) +{ + int i; + + for (i = 0 ; i < MAX_DMA_CHANNELS ; i++) { + if (!atomic_read(&dma_channels[i].idle)) { + seq_printf(m, "%2d: %s\n", i, + dma_channels[i].dev_id); + } + } + return 0; +} + +static int proc_dma_open(struct inode *inode, struct file *file) +{ + return single_open(file, proc_dma_show, NULL); +} +static struct file_operations proc_dma_operations = { + .open = proc_dma_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int __init proc_dma_init(void) +{ + struct proc_dir_entry *e; + + e = create_proc_entry("dma", 0, NULL); + if (e) + e->proc_fops = &proc_dma_operations; + + return 0; +} + +__initcall(proc_dma_init); + +#endif /* CONFIG_PROC_FS */ + +int __init init_dma(void) +{ + int i; + + for (i = 0 ; i < MAX_DMA_CHANNELS ; i++) { + sprintf(dma_channels[i].id, "dmac-%d", i); + /* disable the dmac channel */ + disable_dma(i); + /* request irq*/ + if (request_irq(dma_channels[i].irq, dma_isr, 0, dma_channels[i].id, (void*)&dma_channels[i])){ + printk("DMA controller %d failed to get irq %d\n", i, dma_channels[i].irq); + atomic_set(&dma_channels[i].idle, 0); + } + } + return 0; +} + +static void __exit exit_dma(void) +{ + int i; + + for (i = 0 ; i < MAX_DMA_CHANNELS ; i++) { + /* disable the dmac channel */ + disable_dma(i); + free_irq(dma_channels[i].irq, dma_channels[i].id); + } +} + +module_init(init_dma); +module_exit(exit_dma); + +MODULE_LICENSE("GPL"); + +//EXPORT_SYMBOL(claim_dma_lock); +//EXPORT_SYMBOL(release_dma_lock); +EXPORT_SYMBOL(enable_dma); +EXPORT_SYMBOL(disable_dma); +EXPORT_SYMBOL(set_dma_count); +EXPORT_SYMBOL(get_dma_residue); +EXPORT_SYMBOL(request_dma); +EXPORT_SYMBOL(free_dma); +EXPORT_SYMBOL(nios2_request_dma); +EXPORT_SYMBOL(nios2_set_dma_handler); +EXPORT_SYMBOL(nios2_set_dma_data_width); +EXPORT_SYMBOL(nios2_set_dma_rcon); +EXPORT_SYMBOL(nios2_set_dma_wcon); +EXPORT_SYMBOL(nios2_set_dma_mode); +EXPORT_SYMBOL(nios2_set_dma_raddr); +EXPORT_SYMBOL(nios2_set_dma_waddr); + diff --git a/arch/nios2nommu/kernel/entry.S b/arch/nios2nommu/kernel/entry.S new file mode 100644 index 0000000..7f71a01 --- /dev/null +++ b/arch/nios2nommu/kernel/entry.S @@ -0,0 +1,898 @@ +/* + * linux/arch/nios2nommu/kernel/entry.S + * + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 1998 D. Jeff Dionne , + * Kenneth Albanowski , + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * Based on: + * + * linux/arch/m68knommu/kernel/entry.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file README.legal in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * ColdFire support by Greg Ungerer (gerg@snapgear.com) + * 5307 fixes by David W. Miller + * linux 2.4 support David McCullough + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +.text +.set noat +.set nobreak + +ENTRY(system_call) +/* SAVE_ALL */ + rdctl r10,status /* enable intrs again */ + ori r10,r10,0x0001 + wrctl status,r10 + + movi r2,-LENOSYS + stw r2,PT_R2(sp) /* default return value in r2 */ + /* original r2 is in orig_r2 */ + + movui r1,NR_syscalls + bgtu r3,r1,ret_from_exception + slli r1,r3,2 + movhi r11,%hiadj(sys_call_table) + add r1,r1,r11 + ldw r1,%lo(sys_call_table)(r1) + beq r1,r0,ret_from_exception + + movi r11,%lo(0xffffe000) /* Get thread info pointer */ + and r11,sp,r11 + ldw r11,TI_FLAGS(r11) + BTBNZ r11,r11,TIF_SYSCALL_TRACE_ASM,1f + + callr r1 + stw r2,PT_R2(sp) /* save the return value */ + br ret_from_exception +1: + SAVE_SWITCH_STACK + call syscall_trace + RESTORE_SWITCH_STACK + /* wentao: restore r4-9, since they are trashed by syscall_trace */ + ldw r4,PT_R4(sp) + ldw r5,PT_R5(sp) + ldw r6,PT_R6(sp) + ldw r7,PT_R7(sp) + ldw r8,PT_R8(sp) + ldw r9,PT_R9(sp) + callr r1 + stw r2,PT_R2(sp) /* save the return value */ + SAVE_SWITCH_STACK + call syscall_trace + RESTORE_SWITCH_STACK + +ret_from_exception: + ldw r1,PT_STATUS_EXTENSION(sp) /* check if returning to kernel */ + TSTBZ r1,r1,PS_S_ASM,Luser_return /* if so, skip resched, signals */ + +restore_all: + rdctl r10,status /* disable intrs */ + andi r10,r10,0xfffe + wrctl status, r10 + RESTORE_ALL + eret + +Luser_return: + GET_THREAD_INFO r24 /* get thread_info pointer */ + ldw r10,TI_FLAGS(r24) /* get thread_info->flags */ + ANDI32 r11,r10,_TIF_WORK_MASK_ASM + beq r11,r0,restore_all /* Nothing to do */ + BTBZ r1,r10,TIF_NEED_RESCHED_ASM,Lsignal_return + +Lwork_resched: + call schedule + br ret_from_exception + +Lsignal_return: + BTBZ r1,r10,TIF_SIGPENDING_ASM,restore_all + mov r5,sp /* pt_regs */ + SAVE_SWITCH_STACK + CLR r4 /* oldset = 0 */ + call do_signal + RESTORE_SWITCH_STACK + br restore_all + +/* + * Handle software exceptions. Put here so external interrupts + * can fall throught to ret_from_interrupt. + */ + +software_exception: + ldw r24,-4(ea) // instruction that caused the exception + xorhi r24,r24,0x003b // upper half of trap opcode + xori r24,r24,0x683a // lower half of trap opcode + bne r24,r0,instruction_trap /* N - check for instruction trap */ + cmpeqi r11,r2,TRAP_ID_SYSCALL /* ? Is this a syscall */ + bne r11,r0,system_call /* Y - handle syscall */ + cmpeqi r11,r2,TRAP_ID_APPDEBUG /* ? Is this an application debug */ + bne r11,r0,app_debug /* Y - handle app_debug */ + cmpeqi r11,r2,63 /* ? Is this the old syscall number */ + bne r11,r0,system_call /* Y - handle syscall to catch older apps*/ + br restore_all /* N - everything else is ignored for now */ + +app_debug: + GET_THREAD_INFO r24 /* get thread_info */ + ldw r1,TI_TASK(r24) /* get thread_info->task */ + ldw r24,(TASK_THREAD + THREAD_FLAGS)(r1) /* get thread_info->task->thread.flags */ + ORI32 r24, r24, NIOS2_FLAG_DEBUG /* set the debug flag */ + stw r24,(TASK_THREAD + THREAD_FLAGS)(r1) /* save thread_info->task->thread.flags */ + br restore_all + +/* + * This is the generic interrupt handler (for all hardware interrupt + * sources). It figures out the vector number and calls the appropriate + * interrupt service routine directly. + */ +ENTRY(inthandler) + SAVE_ALL + /* + * Test to see if the exception was a software exception or caused by an + * external interrupt, and vector accordingly. + */ + + rdctl r24,estatus + andi r24,r24,1 + beq r24,r0,software_exception + rdctl r12,ipending + beq r12,r0,software_exception + + movi r24,-1 + stw r24,PT_ORIG_R2(sp) + + /* + * Process an external hardware interrupt. + */ + + addi ea,ea,-4 /* re-issue the interrupted instruction */ + stw ea,PT_EA(sp) + rdctl r9,ienable /* Isolate possible interrupts */ + and r12,r12,r9 + beq r12,r0,ret_from_interrupt /* No one to service done */ + movi r4,%lo(-1) /* Start from bit position 0, highest priority */ + /* This is the IRQ # for handler call */ +1: addi r4,r4,1 + srl r10,r12,r4 + andi r10,r10,1 /* Isolate bit we are interested in */ + cmpeqi r11,r4,32 /* ? End of the register */ + bne r11,r0,ret_from_interrupt /* Y - out of here */ + beq r10,r0,1b + mov r5,sp /* Setup pt_regs pointer for handler call */ + PUSH r4 /* Save state for return */ + PUSH r12 + call process_int + POP r12 + POP r4 + br 1b /* Check for other interrupts while here */ + +ENTRY(ret_from_interrupt) + ldw r4,PT_STATUS_EXTENSION(sp) + TSTBZ r4,r4,PS_S_ASM,Luser_return // Returning to user + +#ifdef CONFIG_PREEMPT + GET_THREAD_INFO r1 + ldw r4,TI_PREEMPT_COUNT(r1) + bne r4,r0,restore_all + +need_resched: + ldw r4,TI_FLAGS(r1) // ? Need resched set + BTBZ r10,r4,TIF_NEED_RESCHED_ASM,restore_all + ldw r4,PT_ESTATUS(sp) // ? Interrupts off + BTBZ r10,r4,NIOS2_STATUS_PIE_OFST_ASM,restore_all + movia r4,PREEMPT_ACTIVE_ASM + stw r4,TI_PREEMPT_COUNT(r1) + rdctl r10,status /* enable intrs again */ + ori r10,r10,0x0001 + wrctl status,r10 + PUSH r1 + call schedule + POP r1 + mov r4,r0 + stw r4,TI_PREEMPT_COUNT(r1) + rdctl r10,status /* disable intrs */ + andi r10,r10,0xfffe + wrctl status, r10 + br need_resched +#else + br restore_all +#endif + + +/* + * Beware - when entering resume, prev (the current task) is + * in r4, next (the new task) is in r5, don't change these + * registers. + */ +ENTRY(resume) + + rdctl r7,status /* save thread status reg */ + stw r7,TASK_THREAD+THREAD_KPSR(r4) + + andi r7,r7,0x0fffe /* disable interrupts */ + wrctl status,r7 + + movia r8,status_extension /* save status extension */ + ldw r7,0(r8) + stw r7,TASK_THREAD+THREAD_KESR(r4) + + SAVE_SWITCH_STACK + stw sp,TASK_THREAD+THREAD_KSP(r4) /* save kernel stack pointer */ + ldw sp,TASK_THREAD+THREAD_KSP(r5) /* restore new thread stack */ + movia r24,_current_thread /* save thread */ + GET_THREAD_INFO r1 + stw r1,0(r24) + RESTORE_SWITCH_STACK + + ldw r7,TASK_THREAD+THREAD_KESR(r5) /* restore extended status reg */ + stw r7,0(r8) + + ldw r7,TASK_THREAD+THREAD_KPSR(r5) /* restore thread status reg */ + wrctl status,r7 + ret + +ENTRY(ret_from_fork) + call schedule_tail + br ret_from_exception + +ENTRY(sys_fork) + mov r4,sp + SAVE_SWITCH_STACK + call nios2_vfork + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_vfork) + mov r4,sp + SAVE_SWITCH_STACK + call nios2_vfork + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_execve) + mov r4,sp + SAVE_SWITCH_STACK + call nios2_execve + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_clone) + mov r4,sp + SAVE_SWITCH_STACK + call nios2_clone + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_sigsuspend) + mov r4,sp + SAVE_SWITCH_STACK + call do_sigsuspend + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_rt_sigsuspend) + mov r4,sp + SAVE_SWITCH_STACK + call do_rt_sigsuspend + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_sigreturn) + mov r4,sp + SAVE_SWITCH_STACK + call do_sigreturn + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_sigaltstack) + ldw r4,PT_R4(sp) + ldw r5,PT_R5(sp) + ldw r6,PT_SP(sp) + SAVE_SWITCH_STACK + call do_sigaltstack + RESTORE_SWITCH_STACK + ret + +ENTRY(sys_rt_sigreturn) + SAVE_SWITCH_STACK + call do_rt_sigreturn + RESTORE_SWITCH_STACK + ret + +/****************************************************************************** +* * +* License Agreement * +* * +* Copyright (c) 2003 Altera Corporation, San Jose, California, USA. * +* All rights reserved. * +* * +* Permission is hereby granted, free of charge, to any person obtaining a * +* copy of this software and associated documentation files (the "Software"), * +* to deal in the Software without restriction, including without limitation * +* the rights to use, copy, modify, merge, publish, distribute, sublicense, * +* and/or sell copies of the Software, and to permit persons to whom the * +* Software is furnished to do so, subject to the following conditions: * +* * +* The above copyright notice and this permission notice shall be included in * +* all copies or substantial portions of the Software. * +* * +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * +* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * +* DEALINGS IN THE SOFTWARE. * +* * +* This agreement shall be governed in all respects by the laws of the State * +* of California and by the laws of the United States of America. * +* * +******************************************************************************/ + + /* + * This is the software exception handler for Nios2. + */ + + /* + * Explicitly allow the use of r1 (the assembler temporary register) + * within this code. This register is normally reserved for the use of + * the compiler. + */ + +ENTRY(instruction_trap) + RESTORE_ALL // Clean off our save & setup for emulation + + /* INSTRUCTION EMULATION + * --------------------- + * + * Nios II processors generate exceptions for unimplemented instructions. + * The routines below emulate these instructions. Depending on the + * processor core, the only instructions that might need to be emulated + * are div, divu, mul, muli, mulxss, mulxsu, and mulxuu. + * + * The emulations match the instructions, except for the following + * limitations: + * + * 1) The emulation routines do not emulate the use of the exception + * temporary register (et) as a source operand because the exception + * handler already has modified it. + * + * 2) The routines do not emulate the use of the stack pointer (sp) or the + * exception return address register (ea) as a destination because + * modifying these registers crashes the exception handler or the + * interrupted routine. + * + * Detailed Design + * --------------- + * + * The emulation routines expect the contents of integer registers r0-r31 + * to be on the stack at addresses sp, 4(sp), 8(sp), ... 124(sp). The + * routines retrieve source operands from the stack and modify the + * destination register's value on the stack prior to the end of the + * exception handler. Then all registers except the destination register + * are restored to their previous values. + * + * The instruction that causes the exception is found at address -4(ea). + * The instruction's OP and OPX fields identify the operation to be + * performed. + * + * One instruction, muli, is an I-type instruction that is identified by + * an OP field of 0x24. + * + * muli AAAAA,BBBBB,IIIIIIIIIIIIIIII,-0x24- + * 27 22 6 0 <-- LSB of field + * + * The remaining emulated instructions are R-type and have an OP field + * of 0x3a. Their OPX fields identify them. + * + * R-type AAAAA,BBBBB,CCCCC,XXXXXX,NNNNN,-0x3a- + * 27 22 17 11 6 0 <-- LSB of field + * + * + * Opcode Encoding. muli is identified by its OP value. Then OPX & 0x02 + * is used to differentiate between the division opcodes and the remaining + * multiplication opcodes. + * + * Instruction OP OPX OPX & 0x02 + * ----------- ---- ---- ---------- + * muli 0x24 + * divu 0x3a 0x24 0 + * div 0x3a 0x25 0 + * mul 0x3a 0x27 != 0 + * mulxuu 0x3a 0x07 != 0 + * mulxsu 0x3a 0x17 != 0 + * mulxss 0x3a 0x1f != 0 + */ + + + /* + * Save everything on the stack to make it easy for the emulation routines + * to retrieve the source register operands. + */ + + addi sp, sp, -128 + stw zero, 0(sp) // Save zero on stack to avoid special case for r0. + stw r1, 4(sp) + stw r2, 8(sp) + stw r3, 12(sp) + stw r4, 16(sp) + stw r5, 20(sp) + stw r6, 24(sp) + stw r7, 28(sp) + stw r8, 32(sp) + stw r9, 36(sp) + stw r10, 40(sp) + stw r11, 44(sp) + stw r12, 48(sp) + stw r13, 52(sp) + stw r14, 56(sp) + stw r15, 60(sp) + stw r16, 64(sp) + stw r17, 68(sp) + stw r18, 72(sp) + stw r19, 76(sp) + stw r20, 80(sp) + stw r21, 84(sp) + stw r22, 88(sp) + stw r23, 92(sp) + // Don't bother to save et. It's already been changed. + stw bt, 100(sp) + stw gp, 104(sp) + stw sp, 108(sp) + stw fp, 112(sp) + // Don't bother to save ea. It's already been changed. + stw ba, 120(sp) + stw ra, 124(sp) + + + /* + * Split the instruction into its fields. We need 4*A, 4*B, and 4*C as + * offsets to the stack pointer for access to the stored register values. + */ + ldw r2,-4(ea) // r2 = AAAAA,BBBBB,IIIIIIIIIIIIIIII,PPPPPP + roli r3,r2,7 // r3 = BBB,IIIIIIIIIIIIIIII,PPPPPP,AAAAA,BB + roli r4,r3,3 // r4 = IIIIIIIIIIIIIIII,PPPPPP,AAAAA,BBBBB + roli r5,r4,2 // r5 = IIIIIIIIIIIIII,PPPPPP,AAAAA,BBBBB,II + srai r4,r4,16 // r4 = (sign-extended) IMM16 + roli r6,r5,5 // r6 = XXXX,NNNNN,PPPPPP,AAAAA,BBBBB,CCCCC,XX + andi r2,r2,0x3f // r2 = 00000000000000000000000000,PPPPPP + andi r3,r3,0x7c // r3 = 0000000000000000000000000,AAAAA,00 + andi r5,r5,0x7c // r5 = 0000000000000000000000000,BBBBB,00 + andi r6,r6,0x7c // r6 = 0000000000000000000000000,CCCCC,00 + + /* Now + * r2 = OP + * r3 = 4*A + * r4 = IMM16 (sign extended) + * r5 = 4*B + * r6 = 4*C + */ + + + /* + * Get the operands. + * + * It is necessary to check for muli because it uses an I-type instruction + * format, while the other instructions are have an R-type format. + * + * Prepare for either multiplication or division loop. + * They both loop 32 times. + */ + movi r14,32 + + add r3,r3,sp // r3 = address of A-operand. + ldw r3,0(r3) // r3 = A-operand. + movi r7,0x24 // muli opcode (I-type instruction format) + beq r2,r7,mul_immed // muli doesn't use the B register as a source + + add r5,r5,sp // r5 = address of B-operand. + ldw r5,0(r5) // r5 = B-operand. + // r4 = SSSSSSSSSSSSSSSS,-----IMM16------ + // IMM16 not needed, align OPX portion + // r4 = SSSSSSSSSSSSSSSS,CCCCC,-OPX--,00000 + srli r4,r4,5 // r4 = 00000,SSSSSSSSSSSSSSSS,CCCCC,-OPX-- + andi r4,r4,0x3f // r4 = 00000000000000000000000000,-OPX-- + + /* Now + * r2 = OP + * r3 = src1 + * r5 = src2 + * r4 = OPX (no longer can be muli) + * r6 = 4*C + */ + + + + /* + * Multiply or Divide? + */ + andi r7,r4,0x02 // For R-type multiply instructions, OPX & 0x02 != 0 + bne r7,zero,multiply + + + /* DIVISION + * + * Divide an unsigned dividend by an unsigned divisor using + * a shift-and-subtract algorithm. The example below shows + * 43 div 7 = 6 for 8-bit integers. This classic algorithm uses a + * single register to store both the dividend and the quotient, + * allowing both values to be shifted with a single instruction. + * + * remainder dividend:quotient + * --------- ----------------- + * initialize 00000000 00101011: + * shift 00000000 0101011:_ + * remainder >= divisor? no 00000000 0101011:0 + * shift 00000000 101011:0_ + * remainder >= divisor? no 00000000 101011:00 + * shift 00000001 01011:00_ + * remainder >= divisor? no 00000001 01011:000 + * shift 00000010 1011:000_ + * remainder >= divisor? no 00000010 1011:0000 + * shift 00000101 011:0000_ + * remainder >= divisor? no 00000101 011:00000 + * shift 00001010 11:00000_ + * remainder >= divisor? yes 00001010 11:000001 + * remainder -= divisor - 00000111 + * ---------- + * 00000011 11:000001 + * shift 00000111 1:000001_ + * remainder >= divisor? yes 00000111 1:0000011 + * remainder -= divisor - 00000111 + * ---------- + * 00000000 1:0000011 + * shift 00000001 :0000011_ + * remainder >= divisor? no 00000001 :00000110 + * + * The quotient is 00000110. + */ + +divide: + /* + * Prepare for division by assuming the result + * is unsigned, and storing its "sign" as 0. + */ + movi r17,0 + + + // Which division opcode? + xori r7,r4,0x25 // OPX of div + bne r7,zero,unsigned_division + + + /* + * OPX is div. Determine and store the sign of the quotient. + * Then take the absolute value of both operands. + */ + xor r17,r3,r5 // MSB contains sign of quotient + bge r3,zero,dividend_is_nonnegative + sub r3,zero,r3 // -r3 +dividend_is_nonnegative: + bge r5,zero,divisor_is_nonnegative + sub r5,zero,r5 // -r5 +divisor_is_nonnegative: + + +unsigned_division: + // Initialize the unsigned-division loop. + movi r13,0 // remainder = 0 + + /* Now + * r3 = dividend : quotient + * r4 = 0x25 for div, 0x24 for divu + * r5 = divisor + * r13 = remainder + * r14 = loop counter (already initialized to 32) + * r17 = MSB contains sign of quotient + */ + + + /* + * for (count = 32; count > 0; --count) + * { + */ +divide_loop: + + /* + * Division: + * + * (remainder:dividend:quotient) <<= 1; + */ + slli r13,r13,1 + cmplt r7,r3,zero // r7 = MSB of r3 + or r13,r13,r7 + slli r3,r3,1 + + + /* + * if (remainder >= divisor) + * { + * set LSB of quotient + * remainder -= divisor; + * } + */ + bltu r13,r5,div_skip + ori r3,r3,1 + sub r13,r13,r5 +div_skip: + + /* + * } + */ + subi r14,r14,1 + bne r14,zero,divide_loop + + + /* Now + * r3 = quotient + * r4 = 0x25 for div, 0x24 for divu + * r6 = 4*C + * r17 = MSB contains sign of quotient + */ + + + /* + * Conditionally negate signed quotient. If quotient is unsigned, + * the sign already is initialized to 0. + */ + bge r17,zero,quotient_is_nonnegative + sub r3,zero,r3 // -r3 +quotient_is_nonnegative: + + + /* + * Final quotient is in r3. + */ + add r6,r6,sp + stw r3,0(r6) // write quotient to stack + br restore_registers + + + + + /* MULTIPLICATION + * + * A "product" is the number that one gets by summing a "multiplicand" + * several times. The "multiplier" specifies the number of copies of the + * multiplicand that are summed. + * + * Actual multiplication algorithms don't use repeated addition, however. + * Shift-and-add algorithms get the same answer as repeated addition, and + * they are faster. To compute the lower half of a product (pppp below) + * one shifts the product left before adding in each of the partial products + * (a * mmmm) through (d * mmmm). + * + * To compute the upper half of a product (PPPP below), one adds in the + * partial products (d * mmmm) through (a * mmmm), each time following the + * add by a right shift of the product. + * + * mmmm + * * abcd + * ------ + * #### = d * mmmm + * #### = c * mmmm + * #### = b * mmmm + * #### = a * mmmm + * -------- + * PPPPpppp + * + * The example above shows 4 partial products. Computing actual Nios II + * products requires 32 partials. + * + * It is possible to compute the result of mulxsu from the result of mulxuu + * because the only difference between the results of these two opcodes is + * the value of the partial product associated with the sign bit of rA. + * + * mulxsu = mulxuu - (rA < 0) ? rB : 0; + * + * It is possible to compute the result of mulxss from the result of mulxsu + * because the only difference between the results of these two opcodes is + * the value of the partial product associated with the sign bit of rB. + * + * mulxss = mulxsu - (rB < 0) ? rA : 0; + * + */ + +mul_immed: + // Opcode is muli. Change it into mul for remainder of algorithm. + mov r6,r5 // Field B is dest register, not field C. + mov r5,r4 // Field IMM16 is src2, not field B. + movi r4,0x27 // OPX of mul is 0x27 + +multiply: + // Initialize the multiplication loop. + movi r9,0 // mul_product = 0 + movi r10,0 // mulxuu_product = 0 + mov r11,r5 // save original multiplier for mulxsu and mulxss + mov r12,r5 // mulxuu_multiplier (will be shifted) + movi r16,1 // used to create "rori B,A,1" from "ror B,A,r16" + + /* Now + * r3 = multiplicand + * r5 = mul_multiplier + * r6 = 4 * dest_register (used later as offset to sp) + * r7 = temp + * r9 = mul_product + * r10 = mulxuu_product + * r11 = original multiplier + * r12 = mulxuu_multiplier + * r14 = loop counter (already initialized) + * r16 = 1 + */ + + + /* + * for (count = 32; count > 0; --count) + * { + */ +multiply_loop: + + /* + * mul_product <<= 1; + * lsb = multiplier & 1; + */ + slli r9,r9,1 + andi r7,r12,1 + + /* + * if (lsb == 1) + * { + * mulxuu_product += multiplicand; + * } + */ + beq r7,zero,mulx_skip + add r10,r10,r3 + cmpltu r7,r10,r3 // Save the carry from the MSB of mulxuu_product. + ror r7,r7,r16 // r7 = 0x80000000 on carry, or else 0x00000000 +mulx_skip: + + /* + * if (MSB of mul_multiplier == 1) + * { + * mul_product += multiplicand; + * } + */ + bge r5,zero,mul_skip + add r9,r9,r3 +mul_skip: + + /* + * mulxuu_product >>= 1; logical shift + * mul_multiplier <<= 1; done with MSB + * mulx_multiplier >>= 1; done with LSB + */ + srli r10,r10,1 + or r10,r10,r7 // OR in the saved carry bit. + slli r5,r5,1 + srli r12,r12,1 + + + /* + * } + */ + subi r14,r14,1 + bne r14,zero,multiply_loop + + + /* + * Multiply emulation loop done. + */ + + /* Now + * r3 = multiplicand + * r4 = OPX + * r6 = 4 * dest_register (used later as offset to sp) + * r7 = temp + * r9 = mul_product + * r10 = mulxuu_product + * r11 = original multiplier + */ + + + // Calculate address for result from 4 * dest_register + add r6,r6,sp + + + /* + * Select/compute the result based on OPX. + */ + + + // OPX == mul? Then store. + xori r7,r4,0x27 + beq r7,zero,store_product + + // It's one of the mulx.. opcodes. Move over the result. + mov r9,r10 + + // OPX == mulxuu? Then store. + xori r7,r4,0x07 + beq r7,zero,store_product + + // Compute mulxsu + // + // mulxsu = mulxuu - (rA < 0) ? rB : 0; + // + bge r3,zero,mulxsu_skip + sub r9,r9,r11 +mulxsu_skip: + + // OPX == mulxsu? Then store. + xori r7,r4,0x17 + beq r7,zero,store_product + + // Compute mulxss + // + // mulxss = mulxsu - (rB < 0) ? rA : 0; + // + bge r11,zero,mulxss_skip + sub r9,r9,r3 +mulxss_skip: + // At this point, assume that OPX is mulxss, so store + + +store_product: + stw r9,0(r6) + + +restore_registers: + // No need to restore r0. + ldw r1, 4(sp) + ldw r2, 8(sp) + ldw r3, 12(sp) + ldw r4, 16(sp) + ldw r5, 20(sp) + ldw r6, 24(sp) + ldw r7, 28(sp) + ldw r8, 32(sp) + ldw r9, 36(sp) + ldw r10, 40(sp) + ldw r11, 44(sp) + ldw r12, 48(sp) + ldw r13, 52(sp) + ldw r14, 56(sp) + ldw r15, 60(sp) + ldw r16, 64(sp) + ldw r17, 68(sp) + ldw r18, 72(sp) + ldw r19, 76(sp) + ldw r20, 80(sp) + ldw r21, 84(sp) + ldw r22, 88(sp) + ldw r23, 92(sp) + ldw et, 96(sp) + ldw bt, 100(sp) + ldw gp, 104(sp) + // Don't corrupt sp. + ldw fp, 112(sp) + // Don't corrupt ea. + ldw ba, 120(sp) + ldw ra, 124(sp) + addi sp, sp, 128 + eret + +.set at +.set break + diff --git a/arch/nios2nommu/kernel/head.S b/arch/nios2nommu/kernel/head.S new file mode 100644 index 0000000..f1cba65 --- /dev/null +++ b/arch/nios2nommu/kernel/head.S @@ -0,0 +1,228 @@ +/* + * head.S for Altera's Excalibur development board with nios processor + * + * (c) Vic Phillips, Microtronix Datacom Ltd., 2001 + * (C) Copyright 2004 Microtronix Datacom Ltd + * + * Based on the following from the Excalibur sdk distribution: + * NA_MemoryMap.s, NR_JumpToStart.s, NR_Setup.s, NR_CWPManager.s + * + * This program is free software; you can redistribute it and/or modify it under + * the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 675 + * Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include + + +#ifdef CONFIG_CRC_CHECK +/**********************************************/ +/* Define where the CRC table lives in flash. */ +/* The __CRC_Sector_Size is the flash sector */ +/* size for the address range. */ +/**********************************************/ + + GEQU __CRC_Table_Begin,(na_flash)+0x4000 /* Second sector of main board flash */ + GEQU __CRC_Sector_Size,0x2000 +#endif + +/* + * This global variable is used as an extension to the nios' + * STATUS register to emulate a user/supervisor mode. + */ + .data + .align 2 + .set noat + .global status_extension +status_extension: + .long 0 + + .global _current_thread +_current_thread: + .long 0 +/* + * Input(s): passed from u-boot + * r4 - Optional pointer to a board information structure. + * r5 - Optional pointer to the physical starting address of the init RAM + * disk. + * r6 - Optional pointer to the physical ending address of the init RAM + * disk. + * r7 - Optional pointer to the physical starting address of any kernel + * command-line parameters. + */ + +/* + * First executable code - detected and jumped to by the ROM bootstrap + * if the code resides in flash (looks for "Nios" at offset 0x0c from + * the potential executable image). + */ + .text + .global _start +_start: + wrctl status,r0 /* Disable interrupts */ + + /* Flush all cache lines within the instruction cache */ + + movia r1,NIOS2_ICACHE_SIZE + movui r2,NIOS2_ICACHE_LINE_SIZE + +text_flush: + flushi r1 + sub r1,r1,r2 + bgt r1,r0,text_flush + br 1f + + /* This is the default location for the exception + * handler. Code in jump to our handler + */ + + movia r24,inthandler + jmp r24 +1: + /* + * After flushing the instruction cache, we must flush the data + * cache. + */ + + movia r1,NIOS2_DCACHE_SIZE + movi r2,NIOS2_DCACHE_LINE_SIZE + +data_flush: + flushd 0(r1) + sub r1,r1,r2 + bgt r1,r0,data_flush + +NR_MoveStart: +#ifdef CONFIG_BREAK_ON_START + break +#endif //CONFIG_BREAK_ON_START + nextpc r1 /* Find out where we are */ +chkadr: + movia r2,chkadr + beq r1,r2,finish_move /* We are running in RAM done */ + addi r1,r1,(_start - chkadr) /* Source */ + movia r2,_start /* Destination */ + movia r3,__bss_start /* End of copy */ + +loop_move: // r1: src, r2: dest, r3: last dest + ldw r8,0(r1) // load a word from [r1] + stw r8,0(r2) // stort a word to dest [r2] + flushd 0(r2) // Flush cache for safty + addi r1,r1,4 // inc the src addr + addi r2,r2,4 // inc the dest addr + blt r2,r3,loop_move + + movia r1,finish_move // VMA(_start)->l1 + jmp r1 // jmp to _start + +finish_move: + + //------------------------------------ + // Disable interrupts on known devices + // +#ifdef NA_ENET_ASM +#ifdef NA_ENET_RESET_ASM + movia r1,NA_ENET_RESET_ASM // ethernet reset address + stwio r0,0(r1) // reset +#endif +#ifdef NA_ENET_RESET_N_ASM + movia r1,NA_ENET_RESET_N_ASM // ethernet reset address + stwio r0,0(r1) // reset +#endif + nop // give it some time + nop // + nop // + nop // +#endif +#ifdef NA_TIMER0_ASM + movia r1,NA_TIMER0_ASM // get timer address + stwio r0,NP_TIMERCONTROL_ASM(r1) // clear interrupt enable + stwio r0,NP_TIMERSTATUS_ASM(r1) // clear interrupt condition +#endif +#ifdef NA_UART0_ASM + movia r1,NA_UART0_ASM + stwio r0,NP_UARTCONTROL_ASM(r1) // clear interrupt enable + stwio r0,NP_UARTSTATUS_ASM(r1) // clear interrupt status +#endif +#ifdef NA_UART1_ASM + movia r1,NA_UART1_ASM + stwio r0,NP_UARTCONTROL_ASM(r1) // clear interrupt enable + stwio r0,NP_UARTSTATUS_ASM(r1) // clear interrupt status +#endif +#ifdef NA_UART2_ASM + movia r1,NA_UART2_ASM + stwio r0,NP_UARTCONTROL_ASM(r1) // clear interrupt enable + stwio r0,NP_UARTSTATUS_ASM(r1) // clear interrupt status +#endif +#ifdef NA_UART3_ASM + movia r1,NA_UART3_ASM + stwio r0,NP_UARTCONTROL_ASM(r1) // clear interrupt enable + stwio r0,NP_UARTSTATUS_ASM(r1) // clear interrupt status +#endif +#ifdef NA_IDE_INTERFACE_ASM + movia r1,NA_IDE_INTERFACE_ASM // ATA reset + stwio r0,0(r1) // write to control register +#endif +#ifdef NA_ENET_ASM +#ifdef NA_ENET_RESET_ASM + movia r1,NA_ENET_RESET_ASM // ethernet reset address + movui r2,1 // reset + stwio r2,0(r1) // +#endif +#ifdef NA_ENET_RESET_N_ASM + movia r1,NA_ENET_RESET_N_ASM // ethernet reset address + movui r2,1 // reset + stwio r2,0(r1) // +#endif +#endif + wrctl ienable,r0 // Mask off all possible interrupts + + //------------------------------------------------------ + // Zero out the .bss segment (uninitialized common data) + // + movia r2,__bss_start // presume nothing is between + movia r1,_end // the .bss and _end. +1: + stb r0,0(r2) + addi r2,r2,1 + bne r1,r2,1b + + //------------------------------------------------------ + // Call main() with interrupts disabled + // + movia r1,status_extension // get the STATUS extension address + movi r2,PS_S_ASM // set initial mode = supervisor + stw r2,0(r1) + + movia r1,init_thread_union // set stack at top of the task union + addi sp,r1,THREAD_SIZE_ASM + movia r2,_current_thread // Remember current thread + stw r1,0(r2) + + movia r1,nios2_boot_init // save args r4-r7 passed from u-boot + callr r1 + + movia r1,main // call main as a subroutine + callr r1 + + //------------------------------------------------------------------ + // If we return from main, break to the oci debugger and buggered we are + // + break + + /* End of startup code */ +.set at + + diff --git a/arch/nios2nommu/kernel/init_task.c b/arch/nios2nommu/kernel/init_task.c new file mode 100644 index 0000000..867e8fb --- /dev/null +++ b/arch/nios2nommu/kernel/init_task.c @@ -0,0 +1,69 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/init_task.c + * + * Ported from arch/m68knommu/kernel/init_task.c + * + * Copyright (C) 2003, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +static struct fs_struct init_fs = INIT_FS; +static struct files_struct init_files = INIT_FILES; +static struct signal_struct init_signals = INIT_SIGNALS(init_signals); +static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); +struct mm_struct init_mm = INIT_MM(init_mm); + +EXPORT_SYMBOL(init_mm); + +/* + * Initial task structure. + * + * All other task structs will be allocated on slabs in fork.c + */ +__asm__(".align 2"); +struct task_struct init_task = INIT_TASK(init_task); + + +/* + * Initial thread structure. + * + * We need to make sure that this is 8192-byte aligned due to the + * way process stacks are handled. This is done by having a special + * "init_task" linker map entry.. + */ +union thread_union init_thread_union + __attribute__((__section__(".data.init_task"))) = + { INIT_THREAD_INFO(init_task) }; + diff --git a/arch/nios2nommu/kernel/io.c b/arch/nios2nommu/kernel/io.c new file mode 100644 index 0000000..e1b0b12 --- /dev/null +++ b/arch/nios2nommu/kernel/io.c @@ -0,0 +1,143 @@ +/*-------------------------------------------------------------------- + * + * Optimized IO string functions. + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +void insl(unsigned long port, void *dst, unsigned long count) +{ + unsigned long read32; + + if ((unsigned long)dst & 2){ + /* Unaligned destination pointer, need to do + * two 16 bit writes for each read. + */ + unsigned short *p=(unsigned short*)dst; + while (count--){ + read32 = inl(port); + *p++ = read32 & 0xFFFF; + *p++ = read32 >> 16; + } + } + else { + unsigned long *p=(unsigned long*)dst; + while (count--) + *p++ = inl(port); + } +} + +void insw(unsigned long port, void *dst, unsigned long count) +{ + unsigned long dst1=(unsigned long)dst; + if (count > 8) { + /* Long word align buffer ptr */ + if (dst1 & 2) { + *(unsigned short*)dst1 = inw(port); + dst1 += sizeof(unsigned short); + count--; + } + + /* Input pairs of short and store as longs */ + while (count >= 8) { + *((unsigned long *)dst1) = inw(port) + (inw(port) << 16); dst1+=sizeof(unsigned long); + *((unsigned long *)dst1) = inw(port) + (inw(port) << 16); dst1+=sizeof(unsigned long); + *((unsigned long *)dst1) = inw(port) + (inw(port) << 16); dst1+=sizeof(unsigned long); + *((unsigned long *)dst1) = inw(port) + (inw(port) << 16); dst1+=sizeof(unsigned long); + count -= 8; + } + } + + /* Input remaining shorts */ + while (count--) { + *((unsigned short *)dst1) = inw(port); + dst1 += sizeof(unsigned short); + } +} + + +void outsl(unsigned long port, void *src, unsigned long count) +{ + unsigned long src1=(unsigned long)src; + unsigned long write32; + + if (src1 & 2){ + /* Unaligned source pointer, need to read + * two 16 bit shorts before writing to register. + */ + while (count--){ + write32 = *(unsigned short *)src1; + src1+=sizeof(unsigned short); + write32 |= *((unsigned short *)src1) << 16; + src1+=sizeof(unsigned short); + outl(write32,port); + } + } + else { + while (count--) { + outl(*(unsigned long *)src1,port); + src1+=sizeof(unsigned long); + } + } +} + +void outsw(unsigned long port, void *src, unsigned long count) +{ + unsigned int lw; + unsigned long src1=(unsigned long)src; + + if (count > 8) { + /* Long word align buffer ptr */ + if (src1 & 2) { + outw( *(unsigned short *)src1, port ); + count--; + src1 += sizeof(unsigned short); + } + + /* Read long words and output as pairs of short */ + while (count >= 8) { + lw = *(unsigned long *)src1; + src1+=sizeof(unsigned long); + outw(lw, port); + outw((lw >> 16), port); + lw = *(unsigned long *)src1; + src1+=sizeof(unsigned long); + outw(lw, port); + outw((lw >> 16), port); + lw = *(unsigned long *)src1; + src1+=sizeof(unsigned long); + outw(lw, port); + outw((lw >> 16), port); + lw = *(unsigned long *)src1; + src1+=sizeof(unsigned long); + outw(lw, port); + outw((lw >> 16), port); + count -= 8; + } + } + + /* Output remaining shorts */ + while (count--) { + outw( *(unsigned short *)src1, port ); + src1 += sizeof(unsigned short); + } +} diff --git a/arch/nios2nommu/kernel/irq.c b/arch/nios2nommu/kernel/irq.c new file mode 100644 index 0000000..f1b2347 --- /dev/null +++ b/arch/nios2nommu/kernel/irq.c @@ -0,0 +1,245 @@ +/* + * linux/arch/$(ARCH)/irq.c -- general exception handling code + * + * Cloned from Linux/m68k. + * + * No original Copyright holder listed, + * Probabily original (C) Roman Zippel (assigned DJD, 1999) + * + * Copyright 1999-2000 D. Jeff Dionne, + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +/* table for system interrupt handlers */ +irq_hand_t irq_list[NR_IRQS]; + +/* The number of spurious interrupts */ +volatile unsigned int num_spurious; + +#define NUM_IRQ_NODES 16 +static irq_node_t nodes[NUM_IRQ_NODES]; + +void __init init_irq_proc(void) +{ + /* Insert /proc/irq driver here */ +} + +static irqreturn_t default_irq_handler(int irq, void *ptr) +{ +#if 1 + printk(KERN_INFO "%s(%d): default irq handler vec=%d [0x%x]\n", + __FILE__, __LINE__, irq, irq); +#endif + disable_irq(irq); + return(IRQ_NONE); +} + +/* + * void init_IRQ(void) + * + * Parameters: None + * + * Returns: Nothing + * + * This function should be called during kernel startup to initialize + * the IRQ handling routines. + */ + +void __init init_IRQ(void) +{ + int i; + + for (i = 0; i < NR_IRQS; i++) { + irq_list[i].handler = default_irq_handler; + irq_list[i].flags = IRQ_FLG_STD; + irq_list[i].dev_id = NULL; + irq_list[i].devname = NULL; + } + + for (i = 0; i < NUM_IRQ_NODES; i++) + nodes[i].handler = NULL; + + /* turn off all interrupts */ + clrimr(0); + +#ifdef DEBUG + printk("init_IRQ done\n"); +#endif +} + +irq_node_t *new_irq_node(void) +{ + irq_node_t *node; + short i; + + for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--) + if (!node->handler) + return node; + + printk (KERN_INFO "new_irq_node: out of nodes\n"); + return NULL; +} + +int request_irq(unsigned int irq, + irq_handler_t handler, + unsigned long flags, + const char *devname, + void *dev_id) +{ + if (irq >= NR_IRQS) { + printk (KERN_ERR "%s: Unknown IRQ %d from %s\n", __FUNCTION__, irq, devname); + return -ENXIO; + } + + if (!(irq_list[irq].flags & IRQ_FLG_STD)) { + if (irq_list[irq].flags & IRQ_FLG_LOCK) { + printk(KERN_ERR "%s: IRQ %d from %s is not replaceable\n", + __FUNCTION__, irq, irq_list[irq].devname); + return -EBUSY; + } + if (flags & IRQ_FLG_REPLACE) { + printk(KERN_ERR "%s: %s can't replace IRQ %d from %s\n", + __FUNCTION__, devname, irq, irq_list[irq].devname); + return -EBUSY; + } + } + irq_list[irq].handler = handler; + irq_list[irq].flags = flags; + irq_list[irq].dev_id = dev_id; + irq_list[irq].devname = devname; + + setimr(1<= NR_IRQS) { + printk (KERN_ERR "%s: Unknown IRQ %d\n", __FUNCTION__, irq); + return; + } + + if (irq_list[irq].dev_id != dev_id) + printk(KERN_ERR "%s: Removing probably wrong IRQ %d from %s\n", + __FUNCTION__, irq, irq_list[irq].devname); + + irq_list[irq].handler = default_irq_handler; + irq_list[irq].flags = IRQ_FLG_STD; + irq_list[irq].dev_id = NULL; + irq_list[irq].devname = NULL; + + clrimr(~(1< +*/ +#include +#include +#include +#include +#include +#include + +#if 0 +#define DEBUGP printk +#else +#define DEBUGP(fmt , ...) +#endif + +void *module_alloc(unsigned long size) +{ + if (size == 0) + return NULL; + return vmalloc(size); +} + + +/* Free memory returned from module_alloc */ +void module_free(struct module *mod, void *module_region) +{ + vfree(module_region); + /* FIXME: If module_region == mod->init_region, trim exception + table entries. */ +} + +/* We don't need anything special. */ +int module_frob_arch_sections(Elf_Ehdr *hdr, + Elf_Shdr *sechdrs, + char *secstrings, + struct module *mod) +{ + return 0; +} + +int apply_relocate(Elf32_Shdr *sechdrs, + const char *strtab, + unsigned int symindex, + unsigned int relsec, + struct module *me) +{ + printk(KERN_ERR "module %s: NO-ADD RELOCATION unsupported\n", + me->name); + return -ENOEXEC; +} + + +int apply_relocate_add (Elf32_Shdr *sechdrs, const char *strtab, + unsigned int symindex, unsigned int relsec, + struct module *mod) +{ + unsigned int i; + Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr; + + DEBUGP ("Applying relocate section %u to %u\n", relsec, + sechdrs[relsec].sh_info); + + for (i = 0; i < sechdrs[relsec].sh_size / sizeof (*rela); i++) { + /* This is where to make the change */ + uint32_t word; + uint32_t *loc + = ((void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + + rela[i].r_offset); + /* This is the symbol it is referring to. Note that all + undefined symbols have been resolved. */ + Elf32_Sym *sym + = ((Elf32_Sym *)sechdrs[symindex].sh_addr + + ELF32_R_SYM (rela[i].r_info)); + uint32_t v = sym->st_value + rela[i].r_addend; + + switch (ELF32_R_TYPE (rela[i].r_info)) { + case R_NIOS2_NONE: + break; + + case R_NIOS2_BFD_RELOC_32: + *loc += v; + break; + + case R_NIOS2_PCREL16: + v -= (uint32_t)loc + 4; + if ((int32_t)v > 0x7fff || + (int32_t)v < -(int32_t)0x8000) { + printk(KERN_ERR + "module %s: relocation overflow\n", + mod->name); + return -ENOEXEC; + } + word = *loc; + *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | (word & 0x3f); + break; + + case R_NIOS2_CALL26: + if (v & 3) { + printk(KERN_ERR + "module %s: dangerous relocation\n", + mod->name); + return -ENOEXEC; + } + if ((v >> 28) != ((uint32_t)loc >> 28)) { + printk(KERN_ERR + "module %s: relocation overflow\n", + mod->name); + return -ENOEXEC; + } + *loc = (*loc & 0x3f) | ((v >> 2) << 6); + break; + + case R_NIOS2_HI16: + word = *loc; + *loc = ((((word >> 22) << 16) | ((v >>16) & 0xffff)) << 6) | + (word & 0x3f); + break; + + case R_NIOS2_LO16: + word = *loc; + *loc = ((((word >> 22) << 16) | (v & 0xffff)) << 6) | + (word & 0x3f); + break; + + case R_NIOS2_HIADJ16: + { + Elf32_Addr word2; + + word = *loc; + word2 = ((v >> 16) + ((v >> 15) & 1)) & 0xffff; + *loc = ((((word >> 22) << 16) | word2) << 6) | + (word & 0x3f); + } + break; + + default: + printk (KERN_ERR "module %s: Unknown reloc: %u\n", + mod->name, ELF32_R_TYPE (rela[i].r_info)); + return -ENOEXEC; + } + } + + return 0; +} + +int module_finalize(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + struct module *me) +{ + return 0; +} + +void module_arch_cleanup(struct module *mod) +{ +} diff --git a/arch/nios2nommu/kernel/nios2_ksyms.c b/arch/nios2nommu/kernel/nios2_ksyms.c new file mode 100644 index 0000000..720f007 --- /dev/null +++ b/arch/nios2nommu/kernel/nios2_ksyms.c @@ -0,0 +1,113 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/nios_ksyms.c + * + * Derived from Nios1 + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * vic - copied from v850 + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +//;dgt2;tmp; + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +extern void dump_thread(struct pt_regs *, struct user *); +/* platform dependent support */ + +EXPORT_SYMBOL(__ioremap); +EXPORT_SYMBOL(iounmap); +EXPORT_SYMBOL(dump_fpu); +EXPORT_SYMBOL(dump_thread); + +EXPORT_SYMBOL(kernel_thread); + +/* Networking helper routines. */ +EXPORT_SYMBOL(csum_partial_copy); + +EXPORT_SYMBOL(memcpy); +EXPORT_SYMBOL(memset); +EXPORT_SYMBOL(memmove); + +EXPORT_SYMBOL(__down); +EXPORT_SYMBOL(__down_interruptible); +EXPORT_SYMBOL(__down_trylock); +EXPORT_SYMBOL(__up); + +EXPORT_SYMBOL(get_wchan); + +/* + * libgcc functions - functions that are used internally by the + * compiler... (prototypes are not correct though, but that + * doesn't really matter since they're not versioned). + */ +extern void __gcc_bcmp(void); +extern void __ashldi3(void); +extern void __ashrdi3(void); +extern void __cmpdi2(void); +extern void __divdi3(void); +extern void __divsi3(void); +extern void __lshrdi3(void); +extern void __moddi3(void); +extern void __modsi3(void); +extern void __muldi3(void); +extern void __mulsi3(void); +extern void __negdi2(void); +extern void __ucmpdi2(void); +extern void __udivdi3(void); +extern void __udivmoddi4(void); +extern void __udivsi3(void); +extern void __umoddi3(void); +extern void __umodsi3(void); + + /* gcc lib functions */ +EXPORT_SYMBOL(__gcc_bcmp); +EXPORT_SYMBOL(__ashldi3); +EXPORT_SYMBOL(__ashrdi3); +EXPORT_SYMBOL(__cmpdi2); +EXPORT_SYMBOL(__divdi3); +EXPORT_SYMBOL(__divsi3); +EXPORT_SYMBOL(__lshrdi3); +EXPORT_SYMBOL(__moddi3); +EXPORT_SYMBOL(__modsi3); +EXPORT_SYMBOL(__muldi3); +EXPORT_SYMBOL(__mulsi3); +EXPORT_SYMBOL(__negdi2); +EXPORT_SYMBOL(__ucmpdi2); +EXPORT_SYMBOL(__udivdi3); +EXPORT_SYMBOL(__udivmoddi4); +EXPORT_SYMBOL(__udivsi3); +EXPORT_SYMBOL(__umoddi3); +EXPORT_SYMBOL(__umodsi3); diff --git a/arch/nios2nommu/kernel/nios_gdb_stub.c b/arch/nios2nommu/kernel/nios_gdb_stub.c new file mode 100644 index 0000000..103925b --- /dev/null +++ b/arch/nios2nommu/kernel/nios_gdb_stub.c @@ -0,0 +1,1456 @@ +// Modified for uClinux - Vic - Apr 2002 +// From: + +// File: nios_gdb_stub.c +// Date: 2000 June 20 +// Author dvb \ Altera Santa Cruz + +#ifndef __KERNEL__ +#include "nios.h" +#else +#include +#include +#include +#endif + +#include "nios_gdb_stub.h" + +#define na_debug_peripheral_irq 8 + +enum +{ + na_BreakpointTrap = 3, + na_SingleStepTrap = 4, + na_StartGDBTrap = 5 +}; + + +#ifdef __KERNEL__ + +extern int _etext; + +static void puts( unsigned char *s ) +{ + while(*s) { + while (!(nasys_printf_uart->np_uartstatus & np_uartstatus_trdy_mask)); + nasys_printf_uart->np_uarttxdata = *s++; + } +} + +#endif // __KERNEL__ + +// -------------------------------- +// Local Prototypes + +#if GDB_DEBUG_PRINT + +static void StringFit(char *s,int w); + +// -------------------------------- +// Debugging The Debugger + +void GDB_RawMessage(char *s) + { + StringFit(s,32); + nr_pio_lcdwritescreen(s); + } +#else + #define GDB_RawMessage(a,b,c) // define away to nothing +#endif + +#if GDB_DEBUG_PRINT +void GDB_Print2(char *s,int n1,int n2) + { + char st[1000]; + + sprintf(st,s,n1,n2); + GDB_RawMessage(st); + } +#else + #define GDB_Print2(a,b,c) // define away to nothing +#endif + +// If string is longer than w, cut out the middle. + +#if GDB_DEBUG_PRINT +int StringLen(char *s) + { + int l = 0; + + while(*s++) + l++; + return l; + } + +static void StringFit(char *s,int w) + { + if(StringLen(s) > w) + { + int i; + + + w = w / 2; + + for(i = 0; i < w; i++) + { + s[i + w] = s[StringLen(s) - w + i]; + } + s[w + w] = 0; + } + } +#endif + +// --------------------------------------------- +// Generic routines for dealing with +// hex input, output, and parsing +// (Adapted from other stubs.) + +NiosGDBGlobals gdb = {0}; // not static: the ISR uses it! + +static char dHexChars[16] = "0123456789abcdef"; + +/* + * HexCharToValue -- convert a characters + * to its hex value, or -1 if not. + */ +char HexCharToValue(char c) +{ + char result=0; + + if(c >= '0' && c <= '9') + result = c - '0'; + else if(c >= 'a' && c <= 'f') + result = c - 'a' + 10; + else if(c >= 'A' && c <= 'F') + result = c - 'A' + 10; + else + result = -1; + return result; +} + +/* + * HexStringToValue -- convert a 2*byte_width string of characters + * to its little endian hex value, + * or -1 if not. + * This routine is for strings of hex values + */ +unsigned long HexStringToValue(char *c, int byte_width) +{ + unsigned long result=0; + unsigned char a,b; + int i=0; + + while (i < byte_width) + { + a = HexCharToValue(*c++); + if (a & 0x80) return a; + b = HexCharToValue(*c++); + if (b & 0x80) return b; + b = (a<<4) | (b&0x0f); + result |= b << (i*8); + i++; + } + return result; +} + +/* + * Hex2Value -- convert a non-hex char delimited string + * to its big endian hex value. + * This routine is for address and byte count values + */ + +char *Hex2Value(char *hexIn, int *valueOut) + { + char c; + int digitValue; + int value = 0; + + while(1) + { + c = *hexIn; + digitValue = HexCharToValue(c); + if(digitValue < 0) + { + *valueOut = value; + return hexIn; + } + hexIn++; + value = (value << 4) + digitValue; + } + } + +/* + * HexToMem -- convert a string to a specified + * number of bytes in memory. + * + * JMB -- make this thing a bit smarter so + * that it selects the byte width to + * write based on the number of bytes + * and the destination address alignment. + * This is to support writes to non-byte enabled + * peripheral registers...I don't like it. + * Beware! there are cases where it wont work + */ +char *HexToMem(char *hexIn, char *memOut, int memByteCount) +{ + int i; + unsigned long x; + short *memOutS=0; + long *memOutL=0; + int byte_width; + + //determine maximum byte width + if (((memByteCount%2) != 0) || (((unsigned int)memOut%2) != 0)) + byte_width = 1; + else if (((memByteCount % 4) != 0) || (((unsigned int)memOut % 4) != 0)) + { + byte_width = 2; + memOutS = (short *)memOut; + } + else + { + byte_width = 4; + memOutL = (long *)memOut; + } + for(i = 0; i < memByteCount; i+=byte_width) + { + x = HexStringToValue(hexIn,byte_width); + hexIn += byte_width*2; + switch (byte_width) + { + case 1: + *memOut++ = (unsigned char) 0x000000ff & x; + break; + case 2: + *memOutS++ = (unsigned short) 0x0000ffff & x; + break; + case 4: + *memOutL++ = x; + break; + default: + //How could this ever happen??? + break; + } + } + + return hexIn; +} + +char *MemToHex(char *memIn, char *hexOut, int memByteCount) +{ + int i,j; + int byte_width; + unsigned long x=0; + unsigned short *memInS=0; + unsigned long *memInL=0; + + //determine maximum byte width + if (((memByteCount % 2) != 0) || (((unsigned int)memIn % 2) != 0)) + byte_width = 1; + else if (((memByteCount % 4) != 0) || (((unsigned int)memIn % 4) != 0)) + { + byte_width = 2; + memInS = (short *)memIn; + } + else + { + byte_width = 4; + memInL = (long *)memIn; + } + + for(i = 0; i < memByteCount; i+=byte_width) + { + switch (byte_width) + { + case 1: + x = *memIn++; + break; + case 2: + x = *memInS++; + break; + case 4: + x = *memInL++; + break; + default: + //How would we get here? + break; + } + + for (j=0; j>4]; + *hexOut++ = dHexChars[x&0x0000000f]; + x = x>>8; + } + } + + *hexOut = 0; + + return hexOut; +} + +//Send just the + or - to indicate +//ACK or NACK +void GDBPutAck (char ack) +{ + if (gdb.comlink == ne_gdb_serial) + GDBPutChar (ack); +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + else + { + if (gdb.host_ip_address != 0) + nr_plugs_send_to (gdb.gdb_eth_plug, &ack, 1, 0, + gdb.host_ip_address, + gdb.host_port_number); + } +#endif +#endif +} + +/* + * Once a $ comes in, use GetGDBPacket to + * retrieve a full gdb packet, and verify + * checksum, and reply + or -. + */ +int GetGDBPacket(char *aBuffer) +{ + int checksum=0; + int length=0; + char c; + int x=0; + + if (gdb.comlink == ne_gdb_serial) + { + while ((c = GDBGetChar ()) != '$') ; + +startPacket: + length = 0; + checksum = 0; + while(((c = GDBGetChar()) != '#') && (length < kTextBufferSize)) + { + if(c == '$') + goto startPacket; + checksum += c; + aBuffer[length++] = c; + aBuffer[length] = 0; + } + + c = GDBGetChar(); + x = HexCharToValue(c) << 4; + c = GDBGetChar(); + x += HexCharToValue(c); + + + checksum &= 0xff; + + GDB_Print2("GetPacket %d",length,0); + } +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + else + { + int srcidx; + // wait till beginning of packet + while (gdb.textBuffer[0] != '$') nr_plugs_idle(); +startEPacket: + length = 0; + checksum = 0; + srcidx = 1; + + //loop until packet terminator + //leave enough room for the checksum at the end + while (((c = gdb.textBuffer[srcidx++]) != '#') && (srcidx < kTextBufferSize-2)) + { + if (c == '$') + goto startEPacket; + + checksum += c; + aBuffer[length++] = c; + } + + c = gdb.textBuffer[srcidx++]; + x = HexCharToValue(c) << 4; + c = gdb.textBuffer[srcidx++]; + x += HexCharToValue (c); + + aBuffer[length++] = 0; + + checksum &= 0xff; + + GDB_Print2("GetPacket %d",length,0); + } +#endif +#endif + + if(checksum != x) + { + GDBPutAck('-'); + length = 0; + } + else + { + GDBPutAck('+'); + } + return length; +} + +//Wait for acknowledgement +//Should we have some way of timing out??? +//return TRUE if ACK +//return FALSE if NACK +int GDBGetACK (void) +{ + char c; + if (gdb.comlink == ne_gdb_serial) + { + while (1) + { + c = GDBGetChar (); + if (c == '+') return (1); + else if (c == '-') return (0); + } + + } +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + else + { + gdb.ACKstatus = ne_gdb_ack_waiting; + while (1) + { + nr_plugs_idle (); + if (gdb.ACKstatus == ne_gdb_ack_acked) + { + gdb.ACKstatus = ne_gdb_ack_notwaiting; + return (1); + } + else if (gdb.ACKstatus == ne_gdb_ack_nacked) + { + gdb.ACKstatus = ne_gdb_ack_notwaiting; + return (0); + } + } + } +#endif +#endif + return(0); +} + +/* + * Send a packet, preceded by $, + * and followed by #checksum. + */ +void PutGDBPacket(char *aBuffer) +{ + int checksum; + char c; + char *origPtr; + int cnt=0; + + origPtr = aBuffer; // Remember in case we get a NACK + if (gdb.comlink == ne_gdb_serial) + { +startPutSerial: + GDBPutChar('$'); + checksum = 0; + while((c = *aBuffer++) != 0) + { + checksum += c; + GDBPutChar(c); + } + GDBPutChar('#'); + GDBPutChar(dHexChars[(checksum >> 4) & 15]); + GDBPutChar(dHexChars[checksum & 15]); + + if (!GDBGetACK ()) + { + aBuffer = origPtr; + if (++cnt < GDB_RETRY_CNT) goto startPutSerial; + } + } +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + else + { + if (gdb.host_ip_address != 0) + { + int i; + int result; + char c1; + + i = 0; + c = aBuffer[i]; + if (c==0) return; //there is no data in packet, so why bother sending + aBuffer[i++] = '$'; + checksum = 0; + do + { + checksum += c; + c1 = aBuffer[i]; + aBuffer[i++] = c; + c = c1; + } while (c != 0); + + aBuffer[i++] = '#'; + aBuffer[i++] = dHexChars[(checksum >> 4) & 15]; + aBuffer[i++] = dHexChars[checksum & 15]; + aBuffer[i++] = 0; +startPutEth: + result = nr_plugs_send_to (gdb.gdb_eth_plug, aBuffer, i, 0, + gdb.host_ip_address, + gdb.host_port_number); + + if (!GDBGetACK ()) + { + if (++cnt < GDB_RETRY_CNT) goto startPutEth; + } + aBuffer[0] = 0; //clear packet to + } + } +#endif +#endif +} + +int PutTracePacket(char *aBuffer, int size) +{ + int checksum; +#ifdef ethernet_exists + char c; +#endif + int i; + int cnt=0; + + if (gdb.comlink == ne_gdb_serial) + { +startPutSerial: + GDBPutChar('$'); + checksum = 0; + for (i=0; i> 4) & 15]); + GDBPutChar(dHexChars[checksum & 15]); + + if (!GDBGetACK ()) + { + if (++cnt < GDB_RETRY_CNT) goto startPutSerial; + } + } +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + else + { + int result; + char c1; + + checksum = 0; + c = '$'; + for (i=0; i> 4) & 15]; + aBuffer[i++] = dHexChars[checksum & 15]; + aBuffer[i++] = 0; +ethResend: + if (gdb.host_ip_address != 0) + { + result = nr_plugs_send_to (gdb.gdb_eth_plug, aBuffer, i, 0, + gdb.host_ip_address, + gdb.host_port_number); + } + if (!GDBGetACK ()) + { + if (++cnt < GDB_RETRY_CNT) goto ethResend; + } + aBuffer[0]=0; + } +#endif +#endif + if (cnt < GDB_RETRY_CNT) return 1; + else return 0; +} + +void PutGDBOKPacket(char *aBuffer) + { + aBuffer[0] = 'O'; + aBuffer[1] = 'K'; + aBuffer[2] = 0; + PutGDBPacket(aBuffer); + } + +#if nasys_debug_core + +//some defines used exclusively for TRACE data xfer +//stepsize is the ascii hex step value i.e. twice the binary length +#define stepsize (2*(2*sizeof(int) + sizeof (char))) +#define MAX_TRACE_BYTES (((int)((2*MAX_DATA_SIZE-2)/stepsize))*stepsize) + +int Trace_Read_Intercept (char *aBuffer) +{ + int cnt=0; + unsigned int data; + unsigned char code; + int byteCount; + unsigned char *w; + unsigned short dataAccumulate; + int status; + + w = aBuffer; + w++; //skip past the m + if (*w++ == 't') //see if this is a special "memory trace" packet + { + w = Hex2Value(w,&byteCount); //get the number of bytes to transfer + + //turn byteCount to a multiple of stepsize + byteCount = ((int)(byteCount/stepsize))*stepsize; + + //wait until fifo empties + nm_debug_get_reg(status, np_debug_write_status); + while (status&np_debug_write_status_writing_mask) nm_debug_get_reg(status,np_debug_write_status); + + // loop through total size + while (byteCount > 0) + { + w=aBuffer; //reset w to beginning of buffer + + //calculate the number of bytes in this packet + if (byteCount > MAX_TRACE_BYTES) dataAccumulate = MAX_TRACE_BYTES; + else dataAccumulate = byteCount; + + //insert data size at beginning of packet + w = MemToHex((char *)&dataAccumulate, w, sizeof (dataAccumulate)); + + byteCount -= dataAccumulate; //decrement byteCount + + // accumulate a full buffer + for (cnt=0; cnt MAX_DATA_SIZE) byteCount = MAX_DATA_SIZE; + + // mA,L -- request memory + w = aBuffer; + w = MemToHex((char *)startAddr,w,byteCount); + PutGDBPacket(aBuffer); + } + +void DoGDBCommand_M(char *aBuffer) + { + char *w; + int startAddr,byteCount; + + w = aBuffer; + w++; // past 'M' + w = Hex2Value(w,&startAddr); + w++; // past ',' + w = Hex2Value(w,&byteCount); + w++; // past ':' + + GDB_Print2("M from %x to %x",startAddr,byteCount); + + // MA,L:values -- write to memory + + w = HexToMem(w,(char *)startAddr,byteCount); + + // Send "OK" + PutGDBOKPacket(aBuffer); + } + +int Debug_Read_Intercept (char *aBuffer) +{ + unsigned int data; + int index; + unsigned char *w; + + w = aBuffer; + w++; //skip past the g + if (*w++ == 'g') //see if this is a special "register read" packet + { + w = Hex2Value(w,&index); //get the index of the register to be read + + nm_debug_get_reg (data, index); + + //assemble the output packet + w=aBuffer; //reset w to beginning of buffer + w = MemToHex((char *)&data, w, sizeof (data)); + *w++ = 0; + + //now send it + PutTracePacket (aBuffer,sizeof (data) * 2); + + return 1; + } + return 0; +} + +// Return the values of all the registers +void DoGDBCommand_g(NiosGDBGlobals *g) + { + char *w; + + if (Debug_Read_Intercept (g->textBuffer)) return; + + w = g->textBuffer; + + w = MemToHex((char *)(&g->registers),w,sizeof(g->registers)); + PutGDBPacket(g->textBuffer); + GDB_Print2("Sent Registers",0,0); + } + +int Debug_Write_Intercept (char *aBuffer) +{ + unsigned int data; + int index; + unsigned char *w; + + w = aBuffer; + w++; //skip past the g + if (*w++ == 'g') //see if this is a special "register read" packet + { + w = Hex2Value(w,&index); //get the index of the register to be written + w++; // past ',' + w = Hex2Value(w,&data); + + nm_debug_set_reg (data, index); + + //now send it + // Send "OK" + PutGDBOKPacket(aBuffer); + + return 1; + } + return 0; +} + +void DoGDBCommand_G(NiosGDBGlobals *g) + { + char *w; + + if (Debug_Write_Intercept (g->textBuffer)) return; + + w = g->textBuffer; + w++; // skip past 'G' + w = HexToMem(w,(char *)(&g->registers), sizeof(g->registers) ); + + // Send "OK" + PutGDBOKPacket(g->textBuffer); + + GDB_Print2("Received Registers",0,0); + } + +// Return last signal value +void DoGDBCommand_qm(NiosGDBGlobals *g) + { + char *w; + + w = g->textBuffer; + + *w++ = 'S'; + *w++ = '2'; + *w++ = '3'; // make up a signal for now... + *w++ = 0; + PutGDBPacket(g->textBuffer); + } + +void DoGDBCommand_q(NiosGDBGlobals *g) +{ +#ifdef na_ssram_detect_in + short int* ssram_exists; +#endif + char *w; + w = g->textBuffer; + + w++; /* skip past the q */ + switch (*w) { + case ('A'): + w = g->textBuffer; + + /* handle intialization information */ + /* is nios_ocd available? */ +#ifdef nasys_debug_core + *w++ = nasys_debug_core + '0'; +#else + *w++ = '0'; +#endif + *w++ = ','; + + /* determine if the SSRAM debugger board is + * physically present */ +#ifdef na_ssram_detect_in + ssram_exists = (short int*) na_ssram_detect_in; + *w++ = !(*ssram_exists) + '0'; +#else + *w++ = '0'; +#endif + *w++ = ','; + + /* print out the max size of a trace packet */ +#if nasys_debug_core + sprintf (w, "%04x", MAX_TRACE_BYTES); +#else + sprintf (w, "0000"); +#endif + + break; + case ('B'): + w = g->textBuffer; + + /* returns 1 if it was an OCD interrupt + * returns 0 if it was software breakpoint */ + if (gdb.trapNumber == nasys_debug_core_irq) { + *w++ = '1'; + } else { + *w++ = '0'; + } + + *w++ = 0; + break; + default: + w = g->textBuffer; + + *w = 0; + break; + } + + PutGDBPacket(g->textBuffer); +} + + +void GDBInsertBreakpoint(NiosGDBGlobals *g,short *address) + { + NiosGDBBreakpoint *b; + + GDB_Print2("breakpoint 0x%x",(int)address,0); + if(g->breakpointCount < kMaximumBreakpoints) + { + b = &g->breakpoint[g->breakpointCount++]; + b->address = address; + b->oldContents = *b->address; + *b->address = 0x7904; + } + } + +void GDBRemoveBreakpoints(NiosGDBGlobals *g) + { + NiosGDBBreakpoint *b; + int i; + + for(i = 0; i < g->breakpointCount; i++) + { + b = &g->breakpoint[i]; + *b->address = b->oldContents; + b->address = 0; + } + + g->breakpointCount = 0; + } + +int NiosInstructionIsTrap5(unsigned short instruction) + { + return instruction == 0x7905; + } + +int NiosInstructionIsPrefix(unsigned short instruction) + { + return (instruction >> 11) == 0x13; + } + +int NiosInstructionIsSkip(unsigned short instruction) + { + int op6; + int op11; + + op6 = (instruction >> 10); + op11 = (instruction >> 5); + + return (op6 == 0x14 // SKP0 + || op6 == 0x15 // SKP1 + || op11 == 0x3f6 // SKPRz + || op11 == 0x3f7 // SKPS + || op11 == 0x3fa); // SKPRnz + } + +int NiosInstructionIsBranch(unsigned short instruction,short *pc,short **branchTargetOut) + { + int op4; + int op7; + int op10; + short *branchTarget = 0; + int result = 0; + + op4 = (instruction >> 12); + op7 = (instruction >> 9); + op10 = (instruction >> 6); + + if(op4 == 0x08) // BR, BSR + { + int offset; + + result = 1; + offset = instruction & 0x07ff; + if(offset & 0x400) // sign extend + offset |= 0xffffF800; + branchTarget = pc + offset + 1; // short * gets x2 scaling automatically + } + else if(op10 == 0x1ff) // JMP, CALL + { + result = 1; + branchTarget = (short *)(gdb.registers.r[instruction & 31] * 2); + } + else if(op7 == 0x3d) // JMPC, CALLC + { + result = 1; + branchTarget = pc + 1 + (instruction & 0x0ffff); +#ifdef __nios32__ + branchTarget = (short *)((int)branchTarget & 0xffffFFFc); // align 32... +#else + branchTarget = (short *)((int)branchTarget & 0xFFFe); // align 16... +#endif + branchTarget = (short *)(*(int *)branchTarget); + } + + if(branchTargetOut) + *branchTargetOut = branchTarget; + + return result; + } + +// ------------------------- +// Step at address +// +// "stepping" involves inserting a +// breakpoint at some reasonable +// spot later than the current program +// counter +// +// On the Nios processor, this is +// nontrivial. For example, we should +// not break up a PFX instruction. + +void DoGDBCommand_s(NiosGDBGlobals *g) + { + char *w; + int x; + short *pc; + short *branchTarget; + unsigned short instruction; + int stepType; + + /* + * First, if there's an argument to the packet, + * set the new program-counter value + */ + + w = g->textBuffer; + w++; + if(HexCharToValue(*w) >= 0) + { + w = Hex2Value(w,&x); + g->registers.pc = x; + } + + /* + * Scan forward to see what the + * most appropriate location(s) for + * a breakpoint will be. + * + * The rules are: + * 1. If *pc == PFX, break after modified instruction. + * 2. If *pc == BR,BSR,JMP,CALL, break at destination + * 3. If *pc == SKIP, break right after SKIP AND after optional instruction, + which might, of course, be prefixed. + * 4. Anything else, just drop in the breakpoint. + */ + + pc = (short *)(int)g->registers.pc; + + instruction = *pc; + stepType = 0; + + if(NiosInstructionIsPrefix(instruction)) + { + /* + * PFX instruction: skip til after it + */ + while(NiosInstructionIsPrefix(instruction)) + { + pc++; + instruction = *pc; + } + + GDBInsertBreakpoint(g,pc + 1); + stepType = 1; + } + else if(NiosInstructionIsBranch(instruction,pc,&branchTarget)) + { + GDBInsertBreakpoint(g,branchTarget); + stepType = 2; + } + else if(NiosInstructionIsSkip(instruction)) + { + short *pc2; + stepType = 3; + + /* + * Skip gets to breaks: one after the skippable instruction, + * and the skippable instruction itself. + * + * Since Skips know how to skip over PFX's, we have to, too. + */ + pc2 = pc; // the Skip instruction + do + { + pc2++; + } while(NiosInstructionIsPrefix(*pc2)); + // pc2 now points to first non-PFX after Skip + GDBInsertBreakpoint(g,pc2+1); + GDBInsertBreakpoint(g,pc+1); + } + else + GDBInsertBreakpoint(g,pc+1); // the genericest case + + GDB_Print2("Program Steppingat 0x%x (%d)",g->registers.pc,stepType); + } + +// ----------------------------- +// Continue at address + +void DoGDBCommand_c(NiosGDBGlobals *g) + { + char *w; + int x; + w = g->textBuffer; + + w++; // past command + + // Anything in the packet? if so, + // use it to set the PC value + + if(HexCharToValue(*w) >= 0) + { + w = Hex2Value(w,&x); + g->registers.pc = x; + } + + GDB_Print2("Program Running at 0x%x",g->registers.pc,0); + } + +// ---------------------- +// Kill + +void DoGDBCommand_k(NiosGDBGlobals *g) + { + return; + } + + +/* + * If we've somehow skidded + * to a stop just after a PFX instruction + * back up the program counter by one. + * + * That way, we can't end up with an accidentally-unprefixed + * instruction. + * + * We do this just before we begin running + * again, so that when the host queries our + * registers, we report the place we actually + * stopped. + */ + +void MaybeAdjustProgramCounter(NiosGDBGlobals *g) + { + short instruction; + if(g->registers.pc) + { + instruction = *(short *)(int)(g->registers.pc - 2); + if(NiosInstructionIsPrefix(instruction)) + g->registers.pc -= 2; + else + { + // If the *current* instruction is Trap5, we must skip it! + instruction = *(short *)(int)(g->registers.pc); + if(NiosInstructionIsTrap5(instruction)) + g->registers.pc += 2; + } + } + } + +/* + * GDBMainLoop - this is the main processing loop + * for the GDB stub. + */ +void GDBMainLoop (void) +{ + while(1) + { + if (GetGDBPacket(gdb.textBuffer) > 0) + { + + GDB_Print2(gdb.textBuffer,0,0); + switch(gdb.textBuffer[0]) + { + case 's': + DoGDBCommand_s(&gdb); + goto startRunning; + break; + + case 'c': // continue + DoGDBCommand_c(&gdb); + + // if the PC is something other than 0, it's + // probably ok to exit and go there + + startRunning: + if(gdb.registers.pc) + { + MaybeAdjustProgramCounter(&gdb); + return; + } + break; + + case 'm': // memory read + DoGDBCommand_m(gdb.textBuffer); + break; + + case 'M': // memory set + DoGDBCommand_M(gdb.textBuffer); + break; + + case 'g': // registers read + DoGDBCommand_g(&gdb); + break; + + case 'G': //registers set + DoGDBCommand_G(&gdb); + break; + + case 'k': //kill process + DoGDBCommand_k(&gdb); + break; + + case '?': // last exception value + DoGDBCommand_qm(&gdb); + break; + + case 'q': + DoGDBCommand_q(&gdb); + break; + + default: // return empty packet, means "yeah yeah". + gdb.textBuffer[0] = 0; + PutGDBPacket(gdb.textBuffer); + break; + } + } + } + +} + +// ----------main------------ +void GDBMain(void) +{ + int i; + + for(i = 0; i < kTextBufferSize; i++) + gdb.textBuffer[i] = i; + + GDBRemoveBreakpoints(&gdb); + +#ifdef __KERNEL__ +/* + * Inform the user that they need to add the symbol file for the application + * that is just starting up. Display the .text .data .bss regions. + */ + if (gdb.trapNumber == 5) { + extern struct task_struct *_current_task; + sprintf(gdb.textBuffer, + "\r\n\nGDB: trap 5 at 0x%08lX", gdb.registers.pc); + puts(gdb.textBuffer); + if (_current_task) { + if ( _current_task->mm->start_code > _etext ) + sprintf(gdb.textBuffer, + "\r\nGDB: Enter the following command in the nios-elf-gdb Console Window:" + "\r\nGDB: add-symbol-file %s.abself 0x%08lX 0x%08lX 0x%08lX\r\n\n", + _current_task->comm, + (unsigned long)_current_task->mm->start_code, + (unsigned long)_current_task->mm->start_data, + (unsigned long)_current_task->mm->end_data ); + else + sprintf(gdb.textBuffer, + ", kernel process: %s\r\n", _current_task->comm ); + } else + sprintf(gdb.textBuffer, + ", kernel process unknown\r\n" ); + puts(gdb.textBuffer); + } +#endif + + // Send trapnumber for breakpoint encountered. No other signals. + + gdb.textBuffer[0] = 'S'; + gdb.textBuffer[1] = '0'; + +#if nasys_debug_core + if (gdb.trapNumber == nasys_debug_core_irq) + { + /* gdb.textBuffer[2] = '8'; */ + gdb.textBuffer[2] = '5'; + } + else + { + gdb.textBuffer[2] = '5'; + } +#else + gdb.textBuffer[2] = '5'; +#endif + gdb.textBuffer[3] = 0; + PutGDBPacket(gdb.textBuffer); + + GDB_Print2("Trap %2d At 0x%x", + gdb.trapNumber,gdb.registers.pc); +// printf ("Trap %d at 0x%x\n",gdb.trapNumber,gdb.registers.pc); +// for (i=0;i<32;i++) printf (" register[%d] = 0x%x\n",i,gdb.registers.r[i]); + + GDBMainLoop (); +} + +// +---------------------------------- +// | gdb_eth_proc -- gets called for udp packets +// | from the host bound for gdb stub +#ifdef ETHER_DEBUG +#ifdef ethernet_exists +int gdb_eth_proc(int plug_handle, + void *context, + ns_plugs_packet *p, + void *payload, + int payload_length) +{ + int i; + char *buf = (char *)payload; + // if this is a stop request, set a flag to stop after nr_plugs_idle + // leave it up to the host to prevent stops from being sent while stub is running??? + + if (*buf == 3) gdb.stop = 1; + + // if we're waiting for an ack, check that here + if (gdb.ACKstatus == ne_gdb_ack_waiting) + { + if (buf[0] == '+') + { + gdb.ACKstatus = ne_gdb_ack_acked; + return 0; + } + else if (buf[0] == '-') + { + gdb.ACKstatus = ne_gdb_ack_nacked; + return 0; + } + } + strcpy (gdb.textBuffer, buf); //all commands should be zero terminated strings + + gdb.textBuffer[payload_length] = 0; //terminate string + + gdb.host_ip_address=((ns_plugs_ip_packet *)(p[ne_plugs_ip].header))->source_ip_address; + gdb.host_port_number=((ns_plugs_udp_packet *)(p[ne_plugs_udp].header))->source_port; + + return 0; +} + +int nr_dbg_plugs_idle (void) +{ + int result; + + result = nr_plugs_idle (); + if (gdb.stop) + { + gdb.stop = 0; +//;dgt2;tmp; asm ("TRAP #5"); + } + return result; +} +#endif +#endif + + +/* + * int main(void) + * + * All we really do here is install our trap # 3, + * and call it once, so that we're living down in + * the GDBMain, trap handler. + */ + +extern int StubBreakpointHandler; +extern int StubHarmlessHandler; +#if nasys_debug_core +extern int StubHWBreakpointHandler; +#endif +#ifdef nasys_debug_uart +extern int StubUartHandler; +#endif + +void gdb_local_install(int active) +{ + unsigned int *vectorTable; + unsigned int stubBreakpointHandler; + unsigned int stubHarmlessHandler; +#if nasys_debug_core + unsigned int stubHWBreakpointHandler; +#endif + + gdb.breakpointCount = 0; + gdb.textBuffer[0] = 0; + + vectorTable = (int *)nasys_vector_table; + stubBreakpointHandler = ( (unsigned int)(&StubBreakpointHandler) ) >> 1; + stubHarmlessHandler = ( (unsigned int)(&StubHarmlessHandler) ) >> 1; +#if nasys_debug_core + stubHWBreakpointHandler = ( (unsigned int)(&StubHWBreakpointHandler) ) >> 1; +#endif + + /* + * Breakpoint & single step both go here + */ + vectorTable[na_BreakpointTrap] = stubBreakpointHandler; + vectorTable[na_SingleStepTrap] = stubBreakpointHandler; + vectorTable[na_StartGDBTrap] = active ? stubBreakpointHandler : stubHarmlessHandler; + /* + * If it exists, Hardware Breakpoint has a different entry point + */ +#if nasys_debug_core + vectorTable[na_debug_peripheral_irq] = stubHWBreakpointHandler; +#endif + +#ifndef __KERNEL__ +#ifdef nasys_debug_uart + if (gdb.comlink == ne_gdb_serial) + { + np_uart *uart = (np_uart *)nasys_debug_uart; + unsigned int stubUartHandler = ((unsigned int)(&StubUartHandler)) >> 1; + + vectorTable[nasys_debug_uart_irq] = stubUartHandler; //set Uart int vector + uart->np_uartcontrol = np_uartcontrol_irrdy_mask; //enable Rx intr + } +#endif +#endif +} + +void nios_gdb_install(int active) +{ + gdb.comlink = ne_gdb_serial; + gdb_local_install (active); +} + +#ifdef ETHER_DEBUG +#ifdef ethernet_exists +void nios_gdb_install_ethernet (int active) +{ + int result; + host_16 host_port = GDB_ETH_PORT; + + gdb.comlink = ne_gdb_ethernet; + gdb_local_install (active); + + result = nr_plugs_create (&gdb.gdb_eth_plug, ne_plugs_udp, host_port, gdb_eth_proc, 0, 0); + //if unabled to open ethernet plug, switch back to default serial interface + if (result) + { + printf ("nr_plugs_create failed %d\n",result); + gdb.comlink = ne_gdb_serial; + return; + } + result = nr_plugs_connect (gdb.gdb_eth_plug, 0, -1, -1); + if (result) + { + printf ("nr_plugs_connect fialed %d\n",result); + gdb.comlink = ne_gdb_serial; + return; + } +} +#endif +#endif + +#ifdef nios_gdb_breakpoint + #undef nios_gdb_breakpoint +#endif + +void nios_gdb_breakpoint(void) + { + /* + * If you arrived here, you didn't include + * the file "nios_peripherals.h", which + * defines nios_gdb_breakpoint as a + * macro that expands to TRAP 5. + * + * (No problem, you can step out + * of this routine.) + */ +//;dgt2;tmp; asm("TRAP 5"); + } + +// end of file diff --git a/arch/nios2nommu/kernel/nios_gdb_stub.h b/arch/nios2nommu/kernel/nios_gdb_stub.h new file mode 100644 index 0000000..3900109 --- /dev/null +++ b/arch/nios2nommu/kernel/nios_gdb_stub.h @@ -0,0 +1,105 @@ +// file: nios_gdb_stub.h +// Author: Altera Santa Cruz \ 2000 +// +// You can modify this header file to +// enable some features useful for +// debugging the debugger. They're +// good features also to just show +// signs of life on your Nios board. +// But they consume valuable peripherals! +// +// The 'GDB_DEBUG_PRINT' option ties +// up the LCD living on the 5v port, +// showing useful internals of the stub. +// +// dvb@altera.com +// + +#ifdef ETHER_DEBUG +#ifdef na_enet +#define ethernet_exists +#endif +#endif + +#ifdef ETHER_DEBUG +#ifdef ethernet_exists +#include "plugs.h" +#endif +#endif + +#define MAX_DATA_SIZE 650 +#define kTextBufferSize ((2*MAX_DATA_SIZE)+4) +#define kMaximumBreakpoints 4 +#define GDB_ETH_PORT 7070 +#define GDB_WHOLE_PACKET 0 +#define GDB_SKIP_FIRST 1 +#define GDB_RETRY_CNT 3 + +/* + * This register structure must match + * its counterpart in the GDB host, since + * it is blasted across in byte notation. + */ +typedef struct + { + int r[32]; + long pc; + short ctl0; + short ctl1; + short ctl2; + short ctl3; + } NiosGDBRegisters; + +typedef struct + { + short *address; + short oldContents; + } NiosGDBBreakpoint; + +typedef struct + { + NiosGDBRegisters registers; + int trapNumber; // stashed by ISR, to distinguish types + char textBuffer[kTextBufferSize]; + int breakpointCount; // breakpoints used for stepping + int comlink; + int stop; + int gdb_eth_plug; + NiosGDBBreakpoint breakpoint[kMaximumBreakpoints]; +#ifdef ETHER_DEBUG +#ifdef ethernet_exists + volatile int ACKstatus; + net_32 host_ip_address; + net_16 host_port_number; +#endif +#endif + } NiosGDBGlobals; + +#ifdef ETHER_DEBUG +#ifdef ethernet_exists +enum +{ + ne_gdb_ack_notwaiting, + ne_gdb_ack_waiting, + ne_gdb_ack_acked, + ne_gdb_ack_nacked +}; +#endif +#endif + +enum +{ + ne_gdb_serial, + ne_gdb_ethernet +}; + +#ifndef GDB_DEBUG_PRINT + #define GDB_DEBUG_PRINT 0 +#endif + +void GDB_Main(void); // initialize gdb and begin. + +char GDBGetChar(void); +void GDBPutChar(char c); +void GDB_Print2(char *s,int v1,int v2); + diff --git a/arch/nios2nommu/kernel/nios_gdb_stub_io.c b/arch/nios2nommu/kernel/nios_gdb_stub_io.c new file mode 100644 index 0000000..e0d8f82 --- /dev/null +++ b/arch/nios2nommu/kernel/nios_gdb_stub_io.c @@ -0,0 +1,39 @@ +// Modified for uClinux - Vic - Apr 2002 +// From: + +// file: nios_gdb_stub_IO.c +// +// Single character I/O for Nios GDB Stub + +#ifndef __KERNEL__ +#include "nios.h" +#else +#include +#endif + +#include "nios_gdb_stub.h" + +#ifdef nasys_debug_uart + #define GDB_UART nasys_debug_uart +#endif + +char GDBGetChar(void) +{ + char c = 0; + +#ifdef GDB_UART + while( (c = (char)nr_uart_rxchar(GDB_UART)) < 0 ) + ; +#endif + + return c; +} + +void GDBPutChar(char c) +{ +#ifdef GDB_UART + nr_uart_txchar(c, GDB_UART); +#endif +} + +// End of file diff --git a/arch/nios2nommu/kernel/nios_gdb_stub_isr.S b/arch/nios2nommu/kernel/nios_gdb_stub_isr.S new file mode 100644 index 0000000..c4af09a --- /dev/null +++ b/arch/nios2nommu/kernel/nios_gdb_stub_isr.S @@ -0,0 +1,99 @@ +/*-------------------------------------------------------------------- + * + * Assembly language portions of Nios GDB Stub + * + * arch\nios2nommu\kernel\switch.S + * + * Derived from Nios1 + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Modified for uClinux - Vic - Apr 2002 + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +//;dgt2;tmp; + + .equ ethernet_exists, 1 + + + .equ gdbRegistersGeneral,0 + .equ gdbRegistersPC,32 + .equ gdbRegistersCtl0Ctl1,33 + .equ gdbRegistersCtl2Ctl3,34 + .equ gdbTrapNumber,35 ; ISR can report trap number here + + + .text + + .global StubBreakpointHandler + .global StubHarmlessHandler + .global StubButtonHandler + .global StubHWBreakpointHandler + .global GDBMain + + .comm _gdb_stub_stack,1024,4 ; Local stack, statically allocated. + .equ gdbStubStacktop,_gdb_stub_stack+992 + + +StubHarmlessHandler: +//;dgt2;tmp + + .equ gdbBreakChar,0x3 + .global StubUartHandler + +StubUartHandler: +//;dgt2;tmp + +StubUartRx: +//;dgt2;tmp + +StubHWBreakpointHandler: +//;dgt2;tmp + +StubBreakpointHandler: +//;dgt2;tmp + +#ifdef __KERNEL__ +;---------------------------------------- +; Name: nr_uart_rxchar +; Description: Read character if available +; Input: %o0: UART base to use +; Output: %o0 = character 0-0xff, or -1 if none present +; Side Effects: %g0 & %g1 altered +; CWP Depth: 0 +; + + .global nr_uart_rxchar +nr_uart_rxchar: +//;dgt2;tmp + + +;---------------------------------------- +; Name: nr_uart_txchar +; Description: Send a single byte out the UART +; Input: %o0 = A character +; %o1 = the UART to use, 0 for default +; Output: none +; Side Effects: %g0 & %g1 altered, CPU waits for UART +; CWP Depth: 0 +; + +; nr_uart_txchar + .global nr_uart_txchar +nr_uart_txchar: +//;dgt2;tmp + +#endif diff --git a/arch/nios2nommu/kernel/pio.c b/arch/nios2nommu/kernel/pio.c new file mode 100644 index 0000000..013a64b --- /dev/null +++ b/arch/nios2nommu/kernel/pio.c @@ -0,0 +1,154 @@ +/* + * linux/arch/nios2nommu/kernel/pio.c + * "Example" drivers(LEDs and 7 seg displays) of the PIO interface + * on Nios Development Kit. + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + * + * Written by Wentao Xu + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +MODULE_AUTHOR("Microtronix Datacom Ltd."); +MODULE_DESCRIPTION("Drivers of PIO devices (LEDs and 7 seg) on Nios kit"); +MODULE_LICENSE("GPL"); + +#undef CONFIG_PIO_SEG +#ifdef na_seven_seg_pio +#define CONFIG_PIO_SEG +#define PIO_SEG_IO na_seven_seg_pio +#endif + +#undef CONFIG_PIO_LED +#ifdef na_led_pio +#define CONFIG_PIO_LED +#define PIO_LED_IO na_led_pio +#endif + +#define PDEBUG printk + +/* routines for 7-segment hex display */ +#ifdef CONFIG_PIO_SEG +static unsigned char _hex_digits_data[] = { + 0x01, 0x4f, 0x12, 0x06, 0x4c, /* 0-4 */ + 0x24, 0x20, 0x0f, 0x00, 0x04, /* 5-9 */ + 0x08, 0x60, 0x72, 0x42, 0x30, /* a-e */ + 0x38 /* f */ +}; + +void pio_seg_write(int value) +{ + int led_value; + + /* Left Hand Digit, goes to PIO bits 8-14 */ + led_value = _hex_digits_data[value & 0xF]; + led_value |= (_hex_digits_data[(value >> 4) & 0xF]) << 8; + + outl(led_value, &(PIO_SEG_IO->np_piodata)); +} + +static void __init pio_seg_init(void) +{ + pio_seg_write(0); +} +#endif + + +/* routines for LED display */ +#ifdef CONFIG_PIO_LED +void pio_led_write(int value) +{ + np_pio *pio=(np_pio *)(PIO_LED_IO); + + //outl(-1, &pio->np_piodirection); + outl(value, &pio->np_piodata); +} + +static void __init pio_led_init(void) +{ + np_pio *pio=(np_pio *)(PIO_LED_IO); + + outl(-1, &pio->np_piodirection); + outl(0x0, &pio->np_piodata); +} +#endif + +/* timing routines */ +#if defined(CONFIG_PIO_SEG) || defined(CONFIG_PIO_LED) +static struct timer_list display_timer; +static int restart_timer=1; +static int timer_counter=0; +static void display_timeout(unsigned long unused) +{ +#ifdef CONFIG_PIO_SEG + pio_seg_write(++timer_counter); +#endif + +#ifdef CONFIG_PIO_LED + pio_led_write(timer_counter); +#endif + if (restart_timer) { + display_timer.expires = jiffies + HZ; /* one second */ + add_timer(&display_timer); + } +} +#endif + +int __init pio_init(void) +{ +#ifdef CONFIG_PIO_SEG + request_mem_region((unsigned long)PIO_SEG_IO, sizeof(np_pio), "pio_7seg"); + pio_seg_init(); +#endif + +#ifdef CONFIG_PIO_LED + request_mem_region((unsigned long)PIO_LED_IO, sizeof(np_pio), "pio_led"); + pio_led_init(); +#endif + +#if defined(CONFIG_PIO_SEG) || defined(CONFIG_PIO_LED) + /* init timer */ + init_timer(&display_timer); + display_timer.function = display_timeout; + display_timer.data = 0; + display_timer.expires = jiffies + HZ * 10; /* 10 seconds */ + add_timer(&display_timer); +#endif + + return 0; +} + +static void __exit pio_exit(void) +{ +#ifdef CONFIG_PIO_SEG + pio_seg_write(0); + release_mem_region((unsigned long)PIO_SEG_IO, sizeof(np_pio)); +#endif + +#ifdef CONFIG_PIO_LED + pio_led_write(0); + release_mem_region((unsigned long)PIO_LED_IO, sizeof(np_pio)); +#endif + +#if defined(CONFIG_PIO_SEG) || defined(CONFIG_PIO_LED) + restart_timer=0; + del_timer_sync(&display_timer); +#endif +} +module_init(pio_init); +module_exit(pio_exit); + diff --git a/arch/nios2nommu/kernel/process.c b/arch/nios2nommu/kernel/process.c new file mode 100644 index 0000000..4cd353c --- /dev/null +++ b/arch/nios2nommu/kernel/process.c @@ -0,0 +1,578 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/process.c + * + * Derived from M68knommu + * + * Copyright (C) 1995 Hamish Macdonald + * Copyright (C) 2000-2002, David McCullough + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * 68060 fixes by Jesper Skov + * Jan/20/2004 dgt NiosII + * rdusp() === (pt_regs *) regs->sp + * Monday: + * asm-nios2nommu\processor.h now bears + * inline thread_saved_pc + * (struct thread_struct *t) + * Friday: it's back here now + * + ---------------------------------------------------------------------*/ + + +/* + * This file handles the architecture-dependent parts of process handling.. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +asmlinkage void ret_from_fork(void); + +/* + * The following aren't currently used. + */ +void (*pm_idle)(void) = NULL; +EXPORT_SYMBOL(pm_idle); + +void (*pm_power_off)(void) = NULL; +EXPORT_SYMBOL(pm_power_off); + +void default_idle(void) +{ + local_irq_disable(); + if (!need_resched()) { + local_irq_enable(); + __asm__("nop"); // was asm sleep + } else + local_irq_enable(); +} + +void (*idle)(void) = default_idle; + +/* + * The idle thread. There's no useful work to be + * done, so just try to conserve power and have a + * low exit latency (ie sit in a loop waiting for + * somebody to say that they'd like to reschedule) + */ +void cpu_idle(void) +{ + while (1) { + while (!need_resched()) + idle(); + preempt_enable_no_resched(); + schedule(); + preempt_disable(); + } +} + +/* + * The development boards have no way to pull a board + * reset. Just jump to the cpu reset address and let + * the code in head.S take care of disabling peripherals. + */ + +void machine_restart(char * __unused) +{ + local_irq_disable(); + __asm__ __volatile__ ( + "jmp %0\n\t" + : + : "r" (CPU_RESET_ADDRESS) + : "r4"); +} + +EXPORT_SYMBOL(machine_restart); + +void machine_halt(void) +{ + local_irq_disable(); + for (;;); +} + +EXPORT_SYMBOL(machine_halt); + +void exit_thread(void) +{ +} + +void release_thread(struct task_struct *dead_task) +{ + /* nothing to do ... */ +} + +/* + * There is no way to power off the development + * boards. So just spin lock for now. If you have + * your own board with power down circuits add you + * specific code here. + */ + +void machine_power_off(void) +{ + local_irq_disable(); + for (;;); +} + +EXPORT_SYMBOL(machine_power_off); + +void show_regs(struct pt_regs * regs) +{ + printk(KERN_NOTICE "\n"); + + printk(KERN_NOTICE "r1: %08lx r2: %08lx r3: %08lx r4: %08lx\n", + regs->r1, regs->r2, regs->r3, regs->r4); + + printk(KERN_NOTICE "r5: %08lx r6: %08lx r7: %08lx r8: %08lx\n", + regs->r5, regs->r6, regs->r7, regs->r8); + + printk(KERN_NOTICE "r9: %08lx r10: %08lx r11: %08lx r12: %08lx\n", + regs->r9, regs->r10, regs->r11, regs->r12); + + printk(KERN_NOTICE "r13: %08lx r14: %08lx r15: %08lx\n", + regs->r13, regs->r14, regs->r15); + + printk(KERN_NOTICE "ra: %08lx fp: %08lx sp: %08lx gp: %08lx\n", + regs->ra, regs->fp, regs->sp, regs->gp); + + printk(KERN_NOTICE "ea: %08lx estatus: %08lx statusx: %08lx\n", + regs->ea, regs->estatus, regs->status_extension); +} + +/* + * Create a kernel thread + */ +int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) +{ + long retval; + long clone_arg = flags | CLONE_VM; + mm_segment_t fs; + + fs = get_fs(); + set_fs(KERNEL_DS); + + __asm__ __volatile( + + " movi r2, %6\n\t" /* TRAP_ID_SYSCALL */ + " movi r3, %1\n\t" /* __NR_clone */ + " mov r4, %5\n\t" /* (clone_arg */ + /* (flags | CLONE_VM)) */ + " movia r5, -1\n\t" /* usp: -1 */ + " trap\n\t" /* sys_clone */ + "\n\t" + " cmpeq r4, r3, zero\n\t"/*2nd return valu in r3 */ + " bne r4, zero, 1f\n\t"/* 0: parent, just return. */ + /* See copy_thread, called */ + /* by do_fork, called by */ + /* nios2_clone, called by */ + /* sys_clone, called by */ + /* syscall trap handler. */ + + " mov r4, %4\n\t" /* fn's parameter (arg) */ + "\n\t" + "\n\t" + " callr %3\n\t" /* Call function (fn) */ + "\n\t" + " mov r4, r2\n\t" /* fn's rtn code//;dgt2;tmp;*/ + " movi r2, %6\n\t" /* TRAP_ID_SYSCALL */ + " movi r3, %2\n\t" /* __NR_exit */ + " trap\n\t" /* sys_exit() */ + + /* Not reached by child. */ + "1:\n\t" + " mov %0, r2\n\t" /* error rtn code (retval) */ + + : "=r" (retval) /* %0 */ + + : "i" (__NR_clone) /* %1 */ + , "i" (__NR_exit) /* %2 */ + , "r" (fn) /* %3 */ + , "r" (arg) /* %4 */ + , "r" (clone_arg) /* %5 (flags | CLONE_VM) */ + , "i" (TRAP_ID_SYSCALL) /* %6 */ + + : "r2" /* Clobbered */ + , "r3" /* Clobbered */ + , "r4" /* Clobbered */ + , "r5" /* Clobbered */ + , "ra" /* Clobbered //;mex1 */ + ); + + set_fs(fs); + return retval; +} + +void flush_thread(void) +{ + /* Now, this task is no longer a kernel thread. */ + current->thread.flags &= ~NIOS2_FLAG_KTHREAD; + +#ifdef CONFIG_FPU + unsigned long zero = 0; +#endif + set_fs(USER_DS); +#ifdef CONFIG_FPU + if (!FPU_IS_EMU) +...;dgt2; + asm volatile (".chip 68k/68881\n\t" + "frestore %0@\n\t" + ".chip 68k" : : "a" (&zero)); +#endif +} + +/* + * "nios2_fork()".. By the time we get here, the + * non-volatile registers have also been saved on the + * stack. We do some ugly pointer stuff here.. (see + * also copy_thread) + */ + +asmlinkage int nios2_fork(struct pt_regs *regs) +{ + /* fork almost works, enough to trick you into looking elsewhere :-( */ + return(-EINVAL); +} + +/* + * nios2_execve() executes a new program. + */ +asmlinkage int nios2_execve(struct pt_regs *regs) +{ + int error; + char * filename; + + lock_kernel(); + filename = getname((char *) regs->r4); + error = PTR_ERR(filename); + if (IS_ERR(filename)) + goto out; + error = do_execve(filename, + (char **) regs->r5, + (char **) regs->r6, + regs); + putname(filename); +out: + unlock_kernel(); + return error; +} + +asmlinkage int nios2_vfork(struct pt_regs *regs) +{ + return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->sp, regs, 0, NULL, NULL); +} + +asmlinkage int nios2_clone(struct pt_regs *regs) +{ + /* r4: clone_flags, r5: child_stack (usp) */ + + unsigned long clone_flags; + unsigned long newsp; + + clone_flags = regs->r4; + newsp = regs->r5; + if (!newsp) + newsp = regs->sp; + return do_fork(clone_flags, newsp, regs, 0, NULL, NULL); +} + +int copy_thread(int nr, unsigned long clone_flags, + unsigned long usp, unsigned long topstk, + struct task_struct * p, struct pt_regs * regs) +{ + struct pt_regs * childregs; + struct switch_stack * childstack, *stack; + unsigned long stack_offset, *retp; + + stack_offset = THREAD_SIZE - sizeof(struct pt_regs); + childregs = (struct pt_regs *) ((unsigned long) p->stack + stack_offset); + p->thread.kregs = childregs; + + *childregs = *regs; + childregs->r2 = 0; //;dgt2;...redundant?...see "rtnvals" below + + retp = ((unsigned long *) regs); + stack = ((struct switch_stack *) retp) - 1; + + childstack = ((struct switch_stack *) childregs) - 1; + *childstack = *stack; + childstack->ra = (unsigned long)ret_from_fork; + + if (usp == -1) + p->thread.kregs->sp = (unsigned long) childstack; + else + p->thread.kregs->sp = usp; + + p->thread.ksp = (unsigned long)childstack; + +#ifdef CONFIG_FPU + if (!FPU_IS_EMU) { + /* Copy the current fpu state */ +...;dgt2; + asm volatile ("fsave %0" : : "m" (p->thread.fpstate[0]) : "memory"); + + if (p->thread.fpstate[0]) + asm volatile ("fmovemx %/fp0-%/fp7,%0\n\t" + "fmoveml %/fpiar/%/fpcr/%/fpsr,%1" + : : "m" (p->thread.fp[0]), "m" (p->thread.fpcntl[0]) + : "memory"); + /* Restore the state in case the fpu was busy */ + asm volatile ("frestore %0" : : "m" (p->thread.fpstate[0])); + } +#endif + + /* Set the return value for the child. */ + childregs->r2 = 0; //;dgt2;...redundant?...see childregs->r2 above + childregs->r3 = 1; //;dgt2;...eg: kernel_thread parent test + + /* Set the return value for the parent. */ + regs->r2 = p->pid; // Return child pid to parent + regs->r3 = 0; //;dgt2;...eg: kernel_thread parent test + + return 0; +} + +/* Fill in the fpu structure for a core dump. */ + +int dump_fpu(struct pt_regs *regs, struct user_m68kfp_struct *fpu) +{ +#ifdef CONFIG_FPU + char fpustate[216]; + + if (FPU_IS_EMU) { + int i; + + memcpy(fpu->fpcntl, current->thread.fpcntl, 12); + memcpy(fpu->fpregs, current->thread.fp, 96); + /* Convert internal fpu reg representation + * into long double format + */ + for (i = 0; i < 24; i += 3) + fpu->fpregs[i] = ((fpu->fpregs[i] & 0xffff0000) << 15) | + ((fpu->fpregs[i] & 0x0000ffff) << 16); + return 1; + } + + /* First dump the fpu context to avoid protocol violation. */ +...;dgt2;tmp; + asm volatile ("fsave %0" :: "m" (fpustate[0]) : "memory"); + if (!fpustate[0]) + return 0; + + asm volatile ("fmovem %/fpiar/%/fpcr/%/fpsr,%0" + :: "m" (fpu->fpcntl[0]) + : "memory"); + asm volatile ("fmovemx %/fp0-%/fp7,%0" + :: "m" (fpu->fpregs[0]) + : "memory"); +#endif + return 1; +} + +/* + * fill in the user structure for a core dump.. + */ +void dump_thread(struct pt_regs * regs, struct user * dump) +{ + struct switch_stack *sw; + + /* changed the size calculations - should hopefully work better. lbt */ + dump->magic = CMAGIC; + dump->start_code = 0; + dump->start_stack = regs->sp & ~(PAGE_SIZE - 1); + dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT; + dump->u_dsize = ((unsigned long) (current->mm->brk + + (PAGE_SIZE-1))) >> PAGE_SHIFT; + dump->u_dsize -= dump->u_tsize; + dump->u_ssize = 0; + + if (dump->start_stack < TASK_SIZE) + dump->u_ssize = ((unsigned long) (TASK_SIZE - dump->start_stack)) >> PAGE_SHIFT; + + dump->u_ar0 = (struct user_regs_struct *)((int)&dump->regs - (int)dump); + sw = ((struct switch_stack *)regs) - 1; + dump->regs.r1 = regs->r1; + dump->regs.r2 = regs->r2; + dump->regs.r3 = regs->r3; + dump->regs.r4 = regs->r4; + dump->regs.r5 = regs->r5; + dump->regs.r6 = regs->r6; + dump->regs.r7 = regs->r7; + dump->regs.r8 = regs->r8; + dump->regs.r9 = regs->r9; + dump->regs.r10 = regs->r10; + dump->regs.r11 = regs->r11; + dump->regs.r12 = regs->r12; + dump->regs.r13 = regs->r13; + dump->regs.r14 = regs->r14; + dump->regs.r15 = regs->r15; + dump->regs.r16 = sw->r16; + dump->regs.r17 = sw->r17; + dump->regs.r18 = sw->r18; + dump->regs.r19 = sw->r19; + dump->regs.r20 = sw->r20; + dump->regs.r21 = sw->r21; + dump->regs.r22 = sw->r22; + dump->regs.r23 = sw->r23; + dump->regs.ra = sw->ra; + dump->regs.fp = sw->fp; + dump->regs.gp = sw->gp; + dump->regs.sp = regs->sp; + dump->regs.orig_r2 = regs->orig_r2; + dump->regs.estatus = regs->estatus; + dump->regs.ea = regs->ea; + /* dump floating point stuff */ + // dump->u_fpvalid = dump_fpu (regs, &dump->m68kfp); +} + +/* + * Generic dumping code. Used for panic and debug. + */ +void dump(struct pt_regs *fp) +{ + unsigned long *sp; + unsigned char *tp; + int i; + + printk(KERN_EMERG "\nCURRENT PROCESS:\n\n"); + printk(KERN_EMERG "COMM=%s PID=%d\n", current->comm, current->pid); + + if (current->mm) { + printk(KERN_EMERG "TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n", + (int) current->mm->start_code, + (int) current->mm->end_code, + (int) current->mm->start_data, + (int) current->mm->end_data, + (int) current->mm->end_data, + (int) current->mm->brk); + printk(KERN_EMERG "USER-STACK=%08x KERNEL-STACK=%08x\n\n", + (int) current->mm->start_stack, + (int)(((unsigned long) current) + THREAD_SIZE)); + } + + printk(KERN_EMERG "PC: %08lx\n", fp->ea); + printk(KERN_EMERG "SR: %08lx SP: %08lx\n", (long) fp->estatus, (long) fp); + printk(KERN_EMERG "r4: %08lx r5: %08lx r6: %08lx r7: %08lx\n", + fp->r4, fp->r5, fp->r6, fp->r7); + printk(KERN_EMERG "r8: %08lx r9: %08lx r10: %08lx r11: %08lx\n", + fp->r8, fp->r9, fp->r10, fp->r11); + printk(KERN_EMERG "\nUSP: %08x TRAPFRAME: %08x\n", (unsigned int) fp->sp, + (unsigned int) fp); + + printk(KERN_EMERG "\nCODE:"); + tp = ((unsigned char *) fp->ea) - 0x20; + for (sp = (unsigned long *) tp, i = 0; (i < 0x40); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "\n%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n"); + + printk(KERN_EMERG "\nKERNEL STACK:"); + tp = ((unsigned char *) fp) - 0x40; + for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "\n%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n"); + printk(KERN_EMERG "\n"); + + printk(KERN_EMERG "\nUSER STACK:"); + tp = (unsigned char *) (fp->sp - 0x10); + for (sp = (unsigned long *) tp, i = 0; (i < 0x80); i += 4) { + if ((i % 0x10) == 0) + printk(KERN_EMERG "\n%08x: ", (int) (tp + i)); + printk(KERN_EMERG "%08x ", (int) *sp++); + } + printk(KERN_EMERG "\n\n"); +} + +/* + * These bracket the sleeping functions.. + */ +extern void scheduling_functions_start_here(void); +extern void scheduling_functions_end_here(void); +#define first_sched ((unsigned long) scheduling_functions_start_here) +#define last_sched ((unsigned long) scheduling_functions_end_here) + +unsigned long get_wchan(struct task_struct *p) +{ + unsigned long fp, pc; + unsigned long stack_page; + int count = 0; + if (!p || p == current || p->state == TASK_RUNNING) + return 0; + + stack_page = (unsigned long)p; + fp = ((struct switch_stack *)p->thread.ksp)->fp; //;dgt2 + do { + if (fp < stack_page+sizeof(struct task_struct) || + fp >= 8184+stack_page) //;dgt2;tmp + return 0; + pc = ((unsigned long *)fp)[1]; + if (!in_sched_functions(pc)) + return pc; + fp = *(unsigned long *) fp; + } while (count++ < 16); //;dgt2;tmp + return 0; +} + +/* Return saved PC of a blocked thread. */ +unsigned long thread_saved_pc(struct task_struct *t) +{ + return (t->thread.kregs->ea); +} + +/* + * Do necessary setup to start up a newly executed thread. + * Will statup in user mode (status_extension = 0). + */ +void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) +{ + memset((void *) regs, 0, sizeof(struct pt_regs)); + regs->estatus = NIOS2_STATUS_PIE_MSK; // No user mode setting, at least not for now + regs->ea = pc; + regs->sp = sp; + + /* check if debug flag is set */ + if (current->thread.flags & NIOS2_FLAG_DEBUG ) { + if ( *(u32*)pc == NIOS2_OP_NOP ) { + *(u32*)pc = NIOS2_OP_BREAK; + flush_icache_range(pc, pc+4); + } + } +} diff --git a/arch/nios2nommu/kernel/ptrace.c b/arch/nios2nommu/kernel/ptrace.c new file mode 100644 index 0000000..e6ff3b3 --- /dev/null +++ b/arch/nios2nommu/kernel/ptrace.c @@ -0,0 +1,352 @@ +/* + * linux/arch/m68knommu/kernel/ptrace.c + * + * Copyright (C) 1994 by Hamish Macdonald + * Taken from linux/kernel/ptrace.c and modified for M680x0. + * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of + * this archive for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +/* + * does not yet catch signals sent when the child dies. + * in exit.c or in signal.c. + */ + +/* determines which bits in the SR the user has access to. */ +/* 1 = access 0 = no access */ +#define SR_MASK 0x00000000 + +/* Find the stack offset for a register, relative to thread.ksp. */ +#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg) +#define SW_REG(reg) ((long)&((struct switch_stack *)0)->reg \ + - sizeof(struct switch_stack)) +/* Mapping from PT_xxx to the stack offset at which the register is + saved. Notice that usp has no stack-slot and needs to be treated + specially (see get_reg/put_reg below). */ +static int regoff[] = { + -1, PT_REG(r1), PT_REG(r2), PT_REG(r3), PT_REG(r4), + PT_REG(r5), PT_REG(r6), PT_REG(r7), PT_REG(r8), + PT_REG(r9), PT_REG(r10), PT_REG(r11), PT_REG(r12), + PT_REG(r13), PT_REG(r14), PT_REG(r15), SW_REG(r16), + SW_REG(r17), SW_REG(r18), SW_REG(r19), SW_REG(r20), + SW_REG(r21), SW_REG(r22), SW_REG(r23), -1, -1, + PT_REG(gp), PT_REG(sp), -1, -1, PT_REG(ra), -1, + PT_REG(estatus), -1, -1, -1 +}; + +/* + * Get contents of register REGNO in task TASK. + */ +static inline long get_reg(struct task_struct *task, int regno) +{ + unsigned long *addr; + + if (regno == PTR_R0) + return 0; + else if (regno == PTR_BA) + return 0; + else if (regno == PTR_STATUS) + return 0; + else if (regno == PTR_IENABLE) + return 0; + else if (regno == PTR_IPENDING) + return 0; + else if (regno < sizeof(regoff)/sizeof(regoff[0])) + addr = (unsigned long *)(task->thread.kregs + regoff[regno]); + else + return 0; + return *addr; +} + +/* + * Write contents of register REGNO in task TASK. + */ +static inline int put_reg(struct task_struct *task, int regno, + unsigned long data) +{ + unsigned long *addr; + + if (regno == PTR_R0) + return -1; + else if (regno == PTR_BA) + return -1; + else if (regno == PTR_STATUS) + return -1; + else if (regno == PTR_IENABLE) + return -1; + else if (regno == PTR_IPENDING) + return -1; + else if (regno < sizeof(regoff)/sizeof(regoff[0])) + addr = (unsigned long *) (task->thread.kregs + regoff[regno]); + else + return -1; + *addr = data; + return 0; +} + +/* + * Called by kernel/ptrace.c when detaching.. + * + * Nothing special to do here, no processor debug support. + */ +void ptrace_disable(struct task_struct *child) +{ +} + +long arch_ptrace(struct task_struct *child, long request, long addr, long data) +{ + int ret; + + switch (request) { + /* when I and D space are separate, these will need to be fixed. */ + case PTRACE_PEEKTEXT: /* read word at location addr. */ + case PTRACE_PEEKDATA: { + unsigned long tmp; + int copied; + + copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0); + ret = -EIO; + if (copied != sizeof(tmp)) + break; + ret = put_user(tmp,(unsigned long *) data); + break; + } + + /* read the word at location addr in the USER area. */ + case PTRACE_PEEKUSR: { + unsigned long tmp; + + ret = -EIO; + if ((addr & 3) || addr < 0 || + addr > sizeof(struct user) - 3) + break; + + tmp = 0; /* Default return condition */ + addr = addr >> 2; /* temporary hack. */ + ret = -EIO; + if (addr < 19) { + tmp = get_reg(child, addr); +#if 0 // No FPU stuff + } else if (addr >= 21 && addr < 49) { + tmp = child->thread.fp[addr - 21]; +#ifdef CONFIG_M68KFPU_EMU + /* Convert internal fpu reg representation + * into long double format + */ + if (FPU_IS_EMU && (addr < 45) && !(addr % 3)) + tmp = ((tmp & 0xffff0000) << 15) | + ((tmp & 0x0000ffff) << 16); +#endif +#endif + } else if (addr == 49) { + tmp = child->mm->start_code; + } else if (addr == 50) { + tmp = child->mm->start_data; + } else if (addr == 51) { + tmp = child->mm->end_code; + } else + break; + ret = put_user(tmp,(unsigned long *) data); + break; + } + + /* when I and D space are separate, this will have to be fixed. */ + case PTRACE_POKETEXT: /* write the word at location addr. */ + case PTRACE_POKEDATA: + ret = 0; + if (access_process_vm(child, addr, &data, sizeof(data), 1) == sizeof(data)) + break; + ret = -EIO; + break; + + case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ + ret = -EIO; + if ((addr & 3) || addr < 0 || + addr > sizeof(struct user) - 3) + break; + + addr = addr >> 2; /* temporary hack. */ + + if (addr == PTR_ESTATUS) { + data &= SR_MASK; + data |= get_reg(child, PTR_ESTATUS) & ~(SR_MASK); + } + if (addr < 19) { + if (put_reg(child, addr, data)) + break; + ret = 0; + break; + } +#if 0 // No FPU stuff + if (addr >= 21 && addr < 48) + { +#ifdef CONFIG_M68KFPU_EMU + /* Convert long double format + * into internal fpu reg representation + */ + if (FPU_IS_EMU && (addr < 45) && !(addr % 3)) { + data = (unsigned long)data << 15; + data = (data & 0xffff0000) | + ((data & 0x0000ffff) >> 1); + } +#endif + child->thread.fp[addr - 21] = data; + ret = 0; + } +#endif + break; + + case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */ + case PTRACE_CONT: { /* restart after signal. */ + + ret = -EIO; + if ((unsigned long) data > _NSIG) + break; + if (request == PTRACE_SYSCALL) + set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + else + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + child->exit_code = data; + wake_up_process(child); + ret = 0; + break; + } + + /* + * make the child exit. Best I can do is send it a sigkill. + * perhaps it should be put in the status that it wants to + * exit. + */ + case PTRACE_KILL: { + + ret = 0; + if (child->state == EXIT_ZOMBIE) /* already dead */ + break; + child->exit_code = SIGKILL; + wake_up_process(child); + break; + } + + /* + * Single stepping requires placing break instructions in + * the code to break back. If you are stepping through a + * conditional branch you need to decode the test and put + * the break in the correct location. + */ + case PTRACE_SINGLESTEP: { /* set the trap flag. */ + + ret = -EIO; + if ((unsigned long) data > _NSIG) + break; + clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); + + child->exit_code = data; + /* give it a chance to run. */ + wake_up_process(child); + ret = 0; + break; + } + + case PTRACE_DETACH: /* detach a process that was attached. */ + ret = ptrace_detach(child, data); + break; + + case PTRACE_GETREGS: { /* Get all gp regs from the child. */ + int i; + unsigned long tmp; + for (i = 0; i < 19; i++) { + tmp = get_reg(child, i); + if (put_user(tmp, (unsigned long *) data)) { + ret = -EFAULT; + break; + } + data += sizeof(long); + } + ret = 0; + break; + } + + case PTRACE_SETREGS: { /* Set all gp regs in the child. */ + int i; + unsigned long tmp; + for (i = 0; i < 19; i++) { + if (get_user(tmp, (unsigned long *) data)) { + ret = -EFAULT; + break; + } + if (i == PTR_ESTATUS) { + tmp &= SR_MASK; + tmp |= get_reg(child, PTR_ESTATUS) & ~(SR_MASK); + } + put_reg(child, i, tmp); + data += sizeof(long); + } + ret = 0; + break; + } + +#ifdef PTRACE_GETFPREGS + case PTRACE_GETFPREGS: { /* Get the child FPU state. */ + ret = 0; + if (copy_to_user((void *)data, &child->thread.fp, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + } +#endif + +#ifdef PTRACE_SETFPREGS + case PTRACE_SETFPREGS: { /* Set the child FPU state. */ + ret = 0; + if (copy_from_user(&child->thread.fp, (void *)data, + sizeof(struct user_m68kfp_struct))) + ret = -EFAULT; + break; + } +#endif + + default: + ret = -EIO; + break; + } + return ret; +} + +asmlinkage void syscall_trace(void) +{ + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return; + if (!(current->ptrace & PT_PTRACED)) + return; + current->exit_code = SIGTRAP; + current->state = TASK_STOPPED; + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) + ? 0x80 : 0)); + /* + * this isn't the same as continuing with a signal, but it will do + * for normal use. strace only continues with a signal if the + * stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } +} diff --git a/arch/nios2nommu/kernel/semaphore.c b/arch/nios2nommu/kernel/semaphore.c new file mode 100644 index 0000000..0c7d11b --- /dev/null +++ b/arch/nios2nommu/kernel/semaphore.c @@ -0,0 +1,155 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/semaphore.c + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +/* + * Generic semaphore code. Buyer beware. Do your own + * specific changes in + */ + +#include +#include +#include + +#ifndef CONFIG_RMW_INSNS +spinlock_t semaphore_wake_lock; +#endif + +/* + * Semaphores are implemented using a two-way counter: + * The "count" variable is decremented for each process + * that tries to sleep, while the "waking" variable is + * incremented when the "up()" code goes to wake up waiting + * processes. + * + * Notably, the inline "up()" and "down()" functions can + * efficiently test if they need to do any extra work (up + * needs to do something only if count was negative before + * the increment operation. + * + * waking_non_zero() (from asm/semaphore.h) must execute + * atomically. + * + * When __up() is called, the count was negative before + * incrementing it, and we need to wake up somebody. + * + * This routine adds one to the count of processes that need to + * wake up and exit. ALL waiting processes actually wake up but + * only the one that gets to the "waking" field first will gate + * through and acquire the semaphore. The others will go back + * to sleep. + * + * Note that these functions are only called when there is + * contention on the lock, and as such all this is the + * "non-critical" part of the whole semaphore business. The + * critical part is the inline stuff in + * where we want to avoid any extra jumps and calls. + */ +asmlinkage void __up(struct semaphore *sem) +{ + wake_one_more(sem); + wake_up(&sem->wait); +} + +/* + * Perform the "down" function. Return zero for semaphore acquired, + * return negative for signalled out of the function. + * + * If called from __down, the return is ignored and the wait loop is + * not interruptible. This means that a task waiting on a semaphore + * using "down()" cannot be killed until someone does an "up()" on + * the semaphore. + * + * If called from __down_interruptible, the return value gets checked + * upon return. If the return value is negative then the task continues + * with the negative value in the return register (it can be tested by + * the caller). + * + * Either form may be used in conjunction with "up()". + * + */ + + +#define DOWN_HEAD(task_state) \ + \ + \ + current->state = (task_state); \ + add_wait_queue(&sem->wait, &wait); \ + \ + /* \ + * Ok, we're set up. sem->count is known to be less than zero \ + * so we must wait. \ + * \ + * We can let go the lock for purposes of waiting. \ + * We re-acquire it after awaking so as to protect \ + * all semaphore operations. \ + * \ + * If "up()" is called before we call waking_non_zero() then \ + * we will catch it right away. If it is called later then \ + * we will have to go through a wakeup cycle to catch it. \ + * \ + * Multiple waiters contend for the semaphore lock to see \ + * who gets to gate through and who has to wait some more. \ + */ \ + for (;;) { + +#define DOWN_TAIL(task_state) \ + current->state = (task_state); \ + } \ + current->state = TASK_RUNNING; \ + remove_wait_queue(&sem->wait, &wait); + +void __sched __down(struct semaphore * sem) +{ + DECLARE_WAITQUEUE(wait, current); + + DOWN_HEAD(TASK_UNINTERRUPTIBLE) + if (waking_non_zero(sem)) + break; + schedule(); + DOWN_TAIL(TASK_UNINTERRUPTIBLE) +} + +int __sched __down_interruptible(struct semaphore * sem) +{ + DECLARE_WAITQUEUE(wait, current); + int ret = 0; + + DOWN_HEAD(TASK_INTERRUPTIBLE) + + ret = waking_non_zero_interruptible(sem, current); + if (ret) + { + if (ret == 1) + /* ret != 0 only if we get interrupted -arca */ + ret = 0; + break; + } + schedule(); + DOWN_TAIL(TASK_INTERRUPTIBLE) + return ret; +} + +int __down_trylock(struct semaphore * sem) +{ + return waking_non_zero_trylock(sem); +} diff --git a/arch/nios2nommu/kernel/setup.c b/arch/nios2nommu/kernel/setup.c new file mode 100644 index 0000000..1f1627b --- /dev/null +++ b/arch/nios2nommu/kernel/setup.c @@ -0,0 +1,663 @@ +/* + 21Mar2001 1.1 dgt/microtronix: Altera Excalibur/Nios32 port + 30Jun2003 kenw/microtronix: Remove cmdline check in flash +*/ + +/* + * linux/arch/niosnommu/kernel/setup.c + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * Copyright (C) 2001 Vic Phillips {vic@microtronix.com} + * Copyleft (C) 2000 James D. Schettine {james@telos-systems.com} + * Copyright (C) 1999 Greg Ungerer (gerg@moreton.com.au) + * Copyright (C) 1998,2000 D. Jeff Dionne + * Copyright (C) 1998 Kenneth Albanowski + * Copyright (C) 1995 Hamish Macdonald + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * This file handles the architecture-dependent parts of system setup + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#ifdef CONFIG_BLK_DEV_INITRD +#include +#endif + +#ifdef CONFIG_NIOS_SPI +#include +extern ssize_t spi_write(struct file *filp, const char *buf, size_t count, loff_t *ppos); +extern ssize_t spi_read (struct file *filp, char *buf, size_t count, loff_t *ppos); +extern loff_t spi_lseek (struct file *filp, loff_t offset, int origin); +extern int spi_open (struct inode *inode, struct file *filp); +extern int spi_release (struct inode *inode, struct file *filp); +#endif + +#ifdef CONFIG_CONSOLE +extern struct consw *conswitchp; +#endif + +unsigned long rom_length; +unsigned long memory_start; +unsigned long memory_end; + +EXPORT_SYMBOL(memory_start); +EXPORT_SYMBOL(memory_end); + +#ifndef CONFIG_CMDLINE +#define CONFIG_CMDLINE "CONSOLE=/dev/ttyS0 root=/dev/rom0 ro" +#endif + +#ifndef CONFIG_PASS_CMDLINE +static char default_command_line[] = CONFIG_CMDLINE; +#endif +static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, }; + + +/* r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11*/ +/* r12 r13 r14 r15 or2 ra fp sp gp es ste ea*/ +static struct pt_regs fake_regs = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\ + 0, 0, 0, 0, 0, (unsigned long)cpu_idle, 0, 0, 0, 0, 0, 0}; + +#define CPU "NIOS2" + +#if defined (CONFIG_CS89x0) || defined (CONFIG_SMC91111) || defined (CONFIG_OPEN_ETH) || defined (CONFIG_MTIP1000_ETH) || defined (CONFIG_DM9000_ETH) || defined (CONFIG_SMC91X) || defined (CONFIG_DM9000) || defined (CONFIG_DM9KS) + #if defined (CONFIG_MTIP1000_ETH) //;dgt3; + #include <../drivers/net/mtip1000.h> //;dgt3; + #endif //;dgt3; + + unsigned char *excalibur_enet_hwaddr; + unsigned char excalibur_enet_hwaddr_array[6]; +#endif + +// save args passed from u-boot, called from head.S +void nios2_boot_init(unsigned r4,unsigned r5,unsigned r6,unsigned r7) +{ +#if defined(CONFIG_PASS_CMDLINE) + if (r4 == 0x534f494e) // r4 is magic NIOS, to become board info check in the future + { +#if defined(CONFIG_BLK_DEV_INITRD) + /* + * If the init RAM disk has been configured in, and there's a valid + * starting address for it, set it up. + */ + if (r5) { + initrd_start = r5; + initrd_end = r6; + } +#endif /* CONFIG_BLK_DEV_INITRD */ + if (r7) + strncpy(command_line, (char *)r7, COMMAND_LINE_SIZE); + } +#endif +} + +inline void flash_command(int base, int offset, short data) +{ + volatile unsigned short * ptr=(unsigned short*) (base); + + ptr[0x555]=0xaa; + ptr[0x2aa]=0x55; + ptr[offset]=data; +} + +inline void exit_se_flash(int base) +{ + flash_command(base, 0x555, 0x90); + *(unsigned short*)base=0; +} + +void __init setup_arch(char **cmdline_p) +{ + int bootmap_size; + extern int _stext, _etext; + extern int _edata, _end; +#ifdef DEBUG + extern int _sdata, _sbss, _ebss; +#ifdef CONFIG_BLK_DEV_BLKMEM + extern int *romarray; +#endif +#endif +#if 0 // krh + unsigned char *psrc=(unsigned char *)((NIOS_FLASH_START + NIOS_FLASH_END)>>1); + int i=0; +#endif // krh + + memory_start = PAGE_ALIGN((unsigned long)&_end); + memory_end = (unsigned long) nasys_program_mem_end; + +#if 0 //;kenw; + /* copy the command line from booting paramter region */ + #if defined (nasys_am29lv065d_flash_0) //;dgt; + { //;dgt; + // ...TBA... //;dgt; + } //;dgt; + #else //;dgt; + flash_command((int)psrc, 0x555, 0x88); + while ((*psrc!=0xFF) && (i>1) ); + if (command_line[0]==0) + #endif //;dgt; +#endif //;kenw; +#ifndef CONFIG_PASS_CMDLINE + memcpy(command_line, default_command_line, sizeof(default_command_line)); +#endif + + printk("\x0F\r\n\nuClinux/Nios II\n"); + printk("Altera Nios II support (C) 2004 Microtronix Datacom Ltd.\n"); + +#ifdef DEBUG + printk("KERNEL -> TEXT=0x%08x-0x%08x DATA=0x%08x-0x%08x " + "BSS=0x%08x-0x%08x\n", (int) &_stext, (int) &_etext, + (int) &_sdata, (int) &_edata, + (int) &_sbss, (int) &_ebss); + printk("KERNEL -> MEM=0x%06x-0x%06x STACK=0x%06x-0x%06x\n", + (int) memory_start, (int) memory_end, + (int) memory_end, (int) nasys_program_mem_end); +#endif + + init_mm.start_code = (unsigned long) &_stext; + init_mm.end_code = (unsigned long) &_etext; + init_mm.end_data = (unsigned long) &_edata; + init_mm.brk = (unsigned long) 0; + init_task.thread.kregs = &fake_regs; + +#if 0 + ROOT_DEV = MKDEV(BLKMEM_MAJOR,0); +#endif + + /* Keep a copy of command line */ + *cmdline_p = &command_line[0]; + + memcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); + saved_command_line[COMMAND_LINE_SIZE-1] = 0; + +#ifdef DEBUG + if (strlen(*cmdline_p)) + printk("Command line: '%s'\n", *cmdline_p); + else + printk("No Command line passed\n"); +#endif + + +#if defined (CONFIG_CS89x0) || defined (CONFIG_SMC91111) || defined (CONFIG_OPEN_ETH) || defined (CONFIG_MTIP1000_ETH) || defined (CONFIG_DM9000_ETH) || defined (CONFIG_SMC91X) || defined (CONFIG_DM9000) || defined (CONFIG_DM9KS) + + #if defined (CONFIG_MTIP1000_ETH) //;dgt3; + (*((np_mtip_mac *) //;dgt3; + (na_mtip_mac_control_port))). //;dgt3; + COMMAND_CONFIG = 0; //;dgt3; + #endif //;dgt3; + + /* now read the hwaddr of the ethernet --wentao*/ + + #if 1 //;dgt2; +// #if defined (nasys_am29lv065d_flash_0) //;dgt; + { //;dgt; + unsigned char *flashptr = //;dgt; + ((unsigned char *) //;dgt; + (( //;dgt; + #if defined (na_flash_kernel_end) //;dgt2; + na_flash_kernel_end //;dgt2; + #else //;dgt2; + #if defined (na_flash_kernel_base) //;dgt2; + na_flash_kernel_base + //;dgt; + #else //;dgt2; + na_flash_kernel + //;dgt2; + #endif //;dgt2; + na_flash_kernel_size //;dgt2; + #endif //;dgt2; + - 0x00010000))); //;dgt; + // last 64K of Altera stratix/cyclone flash //;dgt; + //;dgt; + if((*((unsigned long *) flashptr)) == 0x00005AFE) //;dgt; + { //;dgt; + memcpy(excalibur_enet_hwaddr_array, //;dgt; + ((void*) (flashptr+4)),6); //;dgt; + } //;dgt; + else //;dgt; + { //;dgt; + printk("\nsetup_arch: No persistant network" //;dgt; + " settings signature at %08lX\n", //;dgt; + ((unsigned long) flashptr)); //;dgt; + *((unsigned long *) //;dgt; + (&(excalibur_enet_hwaddr_array[0]))) = //;dgt; + 0x00ED0700; //;dgt2; + /* 0x00-07-ED: Altera Corporation. //;dgt; */ + *((unsigned short *) //;dgt; + (&(excalibur_enet_hwaddr_array[4]))) = //;dgt; + 0x0000; //;dgt; + /* Should be: 0x-00-07-ED-0A-03-(Random# 0-256) //;dgt2; */ + /* 0x-00-07-ED-0A-xx-yy Vermont boards //;dgt2; */ + /* 0x-00-07-ED-0B-xx-yy Rhode Island boards //;dgt2; */ + /* 0x-00-07-ED-0C-xx-yy Delaware boards //;dgt2; */ + /* 00 Internal Altera //;dgt2; */ + /* 01 Beta, pre-production//;dgt2; */ + /* 02 Beta, pre-production//;dgt2; */ + /* 03 Customer use //;dgt2; */ + } //;dgt; + } //;dgt; + #else //;dgt; + flash_command(NIOS_FLASH_START, 0x555, 0x88); + memcpy(excalibur_enet_hwaddr_array,(void*)NIOS_FLASH_START,6); + exit_se_flash(NIOS_FLASH_START);; + #endif //;dgt; + + /* now do the checking, make sure we got a valid addr */ + if (excalibur_enet_hwaddr_array[0] & (unsigned char)1) + { + printk("Ethernet hardware address:Clearing invalid bit #0\n"); + excalibur_enet_hwaddr_array[0] ^= (unsigned char)1; + } + excalibur_enet_hwaddr=excalibur_enet_hwaddr_array; +#ifdef DEBUG + printk("Setup the hardware addr for ethernet\n\t %02x %02x %02x %02x %02x %02x\n", + excalibur_enet_hwaddr[0],excalibur_enet_hwaddr[1], + excalibur_enet_hwaddr[2],excalibur_enet_hwaddr[3], + excalibur_enet_hwaddr[4],excalibur_enet_hwaddr[5]); +#endif +#endif + + + /* + * give all the memory to the bootmap allocator, tell it to put the + * boot mem_map at the start of memory + */ + bootmap_size = init_bootmem_node( + NODE_DATA(0), + memory_start >> PAGE_SHIFT, /* map goes here */ + PAGE_OFFSET >> PAGE_SHIFT, /* 0 on coldfire */ + memory_end >> PAGE_SHIFT); + /* + * free the usable memory, we have to make sure we do not free + * the bootmem bitmap so we then reserve it after freeing it :-) + */ + free_bootmem(memory_start, memory_end - memory_start); + reserve_bootmem(memory_start, bootmap_size); +#ifdef CONFIG_BLK_DEV_INITRD + if (initrd_start) reserve_bootmem(virt_to_phys((void *)initrd_start), initrd_end - initrd_start); +#endif /* CONFIG_BLK_DEV_INITRD */ + /* + * get kmalloc into gear + */ + paging_init(); +#ifdef CONFIG_VT +#if defined(CONFIG_DUMMY_CONSOLE) + conswitchp = &dummy_con; +#endif +#endif + +#ifdef DEBUG + printk("Done setup_arch\n"); +#endif + +} + +int get_cpuinfo(char * buffer) +{ + char *cpu, *mmu, *fpu; + u_long clockfreq; + + cpu = CPU; + mmu = "none"; + fpu = "none"; + + clockfreq = nasys_clock_freq; + + return(sprintf(buffer, "CPU:\t\t%s\n" + "MMU:\t\t%s\n" + "FPU:\t\t%s\n" + "Clocking:\t%lu.%1luMHz\n" + "BogoMips:\t%lu.%02lu\n" + "Calibration:\t%lu loops\n", + cpu, mmu, fpu, + clockfreq/1000000,(clockfreq/100000)%10, + (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100, + (loops_per_jiffy*HZ))); + +} + +/* + * Get CPU information for use by the procfs. + */ + +static int show_cpuinfo(struct seq_file *m, void *v) +{ + char *cpu, *mmu, *fpu; + u_long clockfreq; + + cpu = CPU; + mmu = "none"; + fpu = "none"; + + clockfreq = nasys_clock_freq; + + seq_printf(m, "CPU:\t\t%s\n" + "MMU:\t\t%s\n" + "FPU:\t\t%s\n" + "Clocking:\t%lu.%1luMHz\n" + "BogoMips:\t%lu.%02lu\n" + "Calibration:\t%lu loops\n", + cpu, mmu, fpu, + clockfreq/1000000,(clockfreq/100000)%10, + (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100, + (loops_per_jiffy*HZ)); + + return 0; +} + +#ifdef CONFIG_NIOS_SPI + +static int bcd2char( int x ) +{ + if ( (x & 0xF) > 0x90 || (x & 0x0F) > 0x09 ) + return 99; + + return (((x & 0xF0) >> 4) * 10) + (x & 0x0F); +} + +#endif // CONFIG_NIOS_SPI + + +void arch_gettod(int *year, int *month, int *date, int *hour, int *min, int *sec) +{ +#ifdef CONFIG_NIOS_SPI + /********************************************************************/ + /* Read the CMOS clock on the Microtronix Datacom O/S Support card. */ + /* Use the SPI driver code, but circumvent the file system by using */ + /* its internal functions. */ + /********************************************************************/ + int hr; + + struct /*********************************/ + { /* The SPI payload. Warning: the */ + unsigned short register_addr; /* sizeof() operator will return */ + unsigned char value; /* a length of 4 instead of 3! */ + } spi_data; /*********************************/ + + + if ( spi_open( NULL, NULL ) ) + { + printk( "Cannot open SPI driver to read system CMOS clock.\n" ); + *year = *month = *date = *hour = *min = *sec = 0; + return; + } + + spi_lseek( NULL, clockCS, 0 /* == SEEK_SET */ ); + + spi_data.register_addr = clock_write_control; + spi_data.value = 0x40; // Write protect + spi_write( NULL, (const char *)&spi_data, 3, NULL ); + + spi_data.register_addr = clock_read_sec; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + *sec = (int)bcd2char( spi_data.value ); + + spi_data.register_addr = clock_read_min; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + *min = (int)bcd2char( spi_data.value ); + + spi_data.register_addr = clock_read_hour; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + hr = (int)bcd2char( spi_data.value ); + if ( hr & 0x40 ) // Check 24-hr bit + hr = (hr & 0x3F) + 12; // Convert to 24-hr + + *hour = hr; + + + + spi_data.register_addr = clock_read_date; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + *date = (int)bcd2char( spi_data.value ); + + spi_data.register_addr = clock_read_month; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + *month = (int)bcd2char( spi_data.value ); + + spi_data.register_addr = clock_read_year; + spi_data.value = 0; + spi_read( NULL, (char *)&spi_data, 3, NULL ); + *year = (int)bcd2char( spi_data.value ); + + + spi_release( NULL, NULL ); +#else + *year = *month = *date = *hour = *min = *sec = 0; + +#endif +} + +static void *cpuinfo_start (struct seq_file *m, loff_t *pos) +{ + return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL; +} + +static void *cpuinfo_next (struct seq_file *m, void *v, loff_t *pos) +{ + ++*pos; + return cpuinfo_start (m, pos); +} + +static void cpuinfo_stop (struct seq_file *m, void *v) +{ +} + +struct seq_operations cpuinfo_op = { + start: cpuinfo_start, + next: cpuinfo_next, + stop: cpuinfo_stop, + show: show_cpuinfo +}; + + +// adapted from linux/arch/arm/mach-versatile/core.c and mach-bast +// note, hardware MAC address is still undefined + +#if defined(CONFIG_SMC91X) && defined(na_enet) + +#ifndef LAN91C111_REGISTERS_OFFSET +#define LAN91C111_REGISTERS_OFFSET 0x300 +#endif + +static struct resource smc91x_resources[] = { + [0] = { + .start = na_enet + LAN91C111_REGISTERS_OFFSET, + .end = na_enet + LAN91C111_REGISTERS_OFFSET + 0x100 - 1, // 32bits,64k, LAN91C111_REGISTERS_OFFSET 0x0300 ? + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = na_enet_irq, + .end = na_enet_irq, + .flags = IORESOURCE_IRQ, + }, +}; +static struct platform_device smc91x_device = { + .name = "smc91x", + .id = 0, + .num_resources = ARRAY_SIZE(smc91x_resources), + .resource = smc91x_resources, +}; +static int __init smc91x_device_init(void) +{ + /* customizes platform devices, or adds new ones */ + platform_device_register(&smc91x_device); + return 0; +} +arch_initcall(smc91x_device_init); +#endif // CONFIG_SMC91X + + +#if defined(na_DM9000A) && !defined(na_dm9000) // defs for DE2 +#define na_dm9000 na_DM9000A +#define na_dm9000_irq na_DM9000A_irq +#endif + +#if defined(CONFIG_DM9000) && defined(na_dm9000) +#include +static struct resource dm9k_resource[] = { + [0] = { + .start = na_dm9000, + .end = na_dm9000 + 3, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = na_dm9000 + 4, + .end = na_dm9000 + 4 + 3, + .flags = IORESOURCE_MEM, + }, + [2] = { + .start = na_dm9000_irq, + .end = na_dm9000_irq, + .flags = IORESOURCE_IRQ, + } + +}; +static struct dm9000_plat_data dm9k_platdata = { + .flags = DM9000_PLATF_16BITONLY, +}; +static struct platform_device dm9k_device = { + .name = "dm9000", + .id = 0, + .num_resources = ARRAY_SIZE(dm9k_resource), + .resource = dm9k_resource, + .dev = { + .platform_data = &dm9k_platdata, + } +}; +static int __init dm9k_device_init(void) +{ + /* customizes platform devices, or adds new ones */ + platform_device_register(&dm9k_device); + return 0; +} +arch_initcall(dm9k_device_init); +#endif // CONFIG_DM9000 + + +#if defined(CONFIG_SERIO_ALTPS2) && defined(na_ps2_0) + +static struct resource altps2_0_resources[] = { + [0] = { + .start = na_ps2_0, + .end = na_ps2_0 + 0x8 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = na_ps2_0_irq, + .end = na_ps2_0_irq, + .flags = IORESOURCE_IRQ, + }, +}; +static struct platform_device altps2_0_device = { + .name = "altps2", + .id = 0, + .num_resources = ARRAY_SIZE(altps2_0_resources), + .resource = altps2_0_resources, +}; + +#if defined(na_ps2_1) +static struct resource altps2_1_resources[] = { + [0] = { + .start = na_ps2_1, + .end = na_ps2_1 + 0x8 - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = na_ps2_1_irq, + .end = na_ps2_1_irq, + .flags = IORESOURCE_IRQ, + }, +}; +static struct platform_device altps2_1_device = { + .name = "altps2", + .id = 0, + .num_resources = ARRAY_SIZE(altps2_1_resources), + .resource = altps2_1_resources, +}; +#endif // na_ps2_1 + +static int __init altps2_device_init(void) +{ + /* customizes platform devices, or adds new ones */ + platform_device_register(&altps2_0_device); +#if defined(na_ps2_1) + platform_device_register(&altps2_1_device); +#endif // na_ps2_1 + return 0; +} +arch_initcall(altps2_device_init); +#endif // CONFIG_SERIO_ALTPS2 + +#if defined(CONFIG_I2C_NIOS2_GPIO) && defined(na_gpio_0) +#include + +static struct gpio_i2c_pins i2c_gpio_0_pins = { + .sda_pin = (na_gpio_0+(0<<2)), + .scl_pin = (na_gpio_0+(1<<2)), +}; + +static struct platform_device i2c_gpio_0_controller = { + .name = "GPIO-I2C", + .id = 0, + .dev = { + .platform_data = &i2c_gpio_0_pins, + }, + .num_resources = 0 +}; + +static int __init i2c_gpio_device_init(void) +{ + /* customizes platform devices, or adds new ones */ + platform_device_register(&i2c_gpio_0_controller); + return 0; +} +arch_initcall(i2c_gpio_device_init); + +#endif // CONFIG_I2C_NIOS2_GPIO diff --git a/arch/nios2nommu/kernel/signal.c b/arch/nios2nommu/kernel/signal.c new file mode 100644 index 0000000..d8c30dc --- /dev/null +++ b/arch/nios2nommu/kernel/signal.c @@ -0,0 +1,738 @@ +/* + * linux/arch/nios2nommu/kernel/signal.c + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive + * for more details. + * + * Linux/m68k support by Hamish Macdonald + * + * 68060 fixes by Jesper Skov + * + * 1997-12-01 Modified for POSIX.1b signals by Andreas Schwab + * + * mathemu support by Roman Zippel + * (Note: fpstate in the signal context is completely ignored for the emulator + * and the internal floating point format is put on stack) + * + * ++roman (07/09/96): implemented signal stacks (specially for tosemu on + * Atari :-) Current limitation: Only one sigstack can be active at one time. + * If a second signal with SA_ONSTACK set arrives while working on a sigstack, + * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested + * signal handlers! + * + * Jan/20/2004 dgt NiosII + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) + +asmlinkage long sys_wait4(pid_t pid, unsigned int * stat_addr, int options, + struct rusage * ru); +asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs); + +/* + * Atomically swap in the new signal mask, and wait for a signal. + */ +asmlinkage int do_sigsuspend(struct pt_regs *regs) +{ + old_sigset_t mask = regs->r4; // Verify correct syscall reg + sigset_t saveset; + + mask &= _BLOCKABLE; + spin_lock_irq(¤t->sighand->siglock); + saveset = current->blocked; + siginitset(¤t->blocked, mask); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + regs->r2 = -EINTR; + while (1) { + current->state = TASK_INTERRUPTIBLE; + schedule(); + if (do_signal(&saveset, regs)) + return -EINTR; + } +} + +asmlinkage int +do_rt_sigsuspend(struct pt_regs *regs) +{ + sigset_t *unewset = (sigset_t *)regs->r4; + size_t sigsetsize = (size_t)regs->r5; + sigset_t saveset, newset; + + /* XXX: Don't preclude handling different sized sigset_t's. */ + if (sigsetsize != sizeof(sigset_t)) + return -EINVAL; + + if (copy_from_user(&newset, unewset, sizeof(newset))) + return -EFAULT; + sigdelsetmask(&newset, ~_BLOCKABLE); + + spin_lock_irq(¤t->sighand->siglock); + saveset = current->blocked; + current->blocked = newset; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + regs->r2 = -EINTR; + while (1) { + current->state = TASK_INTERRUPTIBLE; + schedule(); + if (do_signal(&saveset, regs)) + return -EINTR; + } +} + +asmlinkage int +sys_sigaction(int sig, const struct old_sigaction *act, + struct old_sigaction *oact) +{ + struct k_sigaction new_ka, old_ka; + int ret; + + if (act) { + old_sigset_t mask; + if (verify_area(VERIFY_READ, act, sizeof(*act)) || + __get_user(new_ka.sa.sa_handler, &act->sa_handler) || + __get_user(new_ka.sa.sa_restorer, &act->sa_restorer)) + return -EFAULT; + __get_user(new_ka.sa.sa_flags, &act->sa_flags); + __get_user(mask, &act->sa_mask); + siginitset(&new_ka.sa.sa_mask, mask); + } + + ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); + + if (!ret && oact) { + if (verify_area(VERIFY_WRITE, oact, sizeof(*oact)) || + __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || + __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer)) + return -EFAULT; + __put_user(old_ka.sa.sa_flags, &oact->sa_flags); + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); + } + + return ret; +} + +/* + * Do a signal return; undo the signal stack. + * + * Keep the return code on the stack quadword aligned! + * That makes the cache flush below easier. + */ + + +struct sigframe +{ + char retcode[12]; + unsigned long extramask[_NSIG_WORDS-1]; + struct sigcontext sc; +}; + +struct rt_sigframe +{ + char retcode[12]; + struct siginfo info; + struct ucontext uc; +}; + +#ifdef CONFIG_FPU + +static unsigned char fpu_version = 0; /* version number of fpu, set by setup_frame */ + +static inline int restore_fpu_state(struct sigcontext *sc) +{ + int err = 1; + + if (FPU_IS_EMU) { + /* restore registers */ + memcpy(current->thread.fpcntl, sc->sc_fpcntl, 12); + memcpy(current->thread.fp, sc->sc_fpregs, 24); + return 0; + } + + if (sc->sc_fpstate[0]) { + /* Verify the frame format. */ + if (sc->sc_fpstate[0] != fpu_version) + goto out; + + __asm__ volatile ("Nios II FPU" + : /* no outputs */ + : ); + } + __asm__ volatile ("Nios II FPU" + : : ); + err = 0; + +out: + return err; +} + +#define FPCONTEXT_SIZE 216 +#define uc_fpstate uc_filler[0] +#define uc_formatvec uc_filler[FPCONTEXT_SIZE/4] +#define uc_extra uc_filler[FPCONTEXT_SIZE/4+1] + +static inline int rt_restore_fpu_state(struct ucontext *uc) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = 0; + fpregset_t fpregs; + int err = 1; + + if (FPU_IS_EMU) { + /* restore fpu control register */ + if (__copy_from_user(current->thread.fpcntl, + &uc->uc_mcontext.fpregs.f_pcr, 12)) + goto out; + /* restore all other fpu register */ + if (__copy_from_user(current->thread.fp, + uc->uc_mcontext.fpregs.f_fpregs, 96)) + goto out; + return 0; + } + + if (__get_user(*(long *)fpstate, (long *)&uc->uc_fpstate)) + goto out; + if (fpstate[0]) { + context_size = fpstate[1]; + + /* Verify the frame format. */ + if (fpstate[0] != fpu_version) + goto out; + if (__copy_from_user(&fpregs, &uc->uc_mcontext.fpregs, + sizeof(fpregs))) + goto out; + __asm__ volatile ("Nios II FPU" + : /* no outputs */ + : ); + } + if (context_size && + __copy_from_user(fpstate + 4, (long *)&uc->uc_fpstate + 1, + context_size)) + goto out; + __asm__ volatile ("Nios II FPU" + : : ); + err = 0; + +out: + return err; +} + +#endif + +static inline int +restore_sigcontext(struct pt_regs *regs, struct sigcontext *usc, void *fp, + int *pr2) +{ + int err = 0; + int estatus; + + estatus = regs->estatus; + + /* get previous pt_regs */ + if (copy_from_user(regs, &usc->regs, sizeof(*regs))) + goto badframe; + + /* Prevent user from being able to change + * certain processor status bits. Currently nothing. + */ + regs->estatus = (estatus & 0xffffffff) | (regs->estatus & 0); + + *pr2 = regs->r2; + regs->orig_r2 = -1; /* disable syscall checks */ + +#ifdef CONFIG_FPU + err |= restore_fpu_state(&context); +#endif + + return err; + +badframe: + return 1; +} + +static inline int +rt_restore_ucontext(struct pt_regs *regs, struct switch_stack *sw, + struct ucontext *uc, int *pr2) +{ + int temp; + greg_t *gregs = uc->uc_mcontext.gregs; + unsigned long usp; + int err; + + err = __get_user(temp, &uc->uc_mcontext.version); + if (temp != MCONTEXT_VERSION) + goto badframe; + /* restore passed registers */ + err |= __get_user(regs->r1, &gregs[0]); + err |= __get_user(regs->r2, &gregs[1]); + err |= __get_user(regs->r3, &gregs[2]); + err |= __get_user(regs->r4, &gregs[3]); + err |= __get_user(regs->r5, &gregs[4]); + err |= __get_user(regs->r6, &gregs[5]); + err |= __get_user(regs->r7, &gregs[6]); + err |= __get_user(regs->r8, &gregs[7]); + err |= __get_user(regs->r9, &gregs[8]); + err |= __get_user(regs->r10, &gregs[9]); + err |= __get_user(regs->r11, &gregs[10]); + err |= __get_user(regs->r12, &gregs[11]); + err |= __get_user(regs->r13, &gregs[12]); + err |= __get_user(regs->r14, &gregs[13]); + err |= __get_user(regs->r15, &gregs[14]); + err |= __get_user(sw->r16, &gregs[15]); + err |= __get_user(sw->r17, &gregs[16]); + err |= __get_user(sw->r18, &gregs[17]); + err |= __get_user(sw->r19, &gregs[18]); + err |= __get_user(sw->r20, &gregs[19]); + err |= __get_user(sw->r21, &gregs[20]); + err |= __get_user(sw->r22, &gregs[21]); + err |= __get_user(sw->r23, &gregs[22]); + err |= __get_user(usp, &gregs[23]); + err |= __get_user(sw->fp, &gregs[24]); // Verify, should this be settable + err |= __get_user(sw->gp, &gregs[25]); // Verify, should this be settable + + err |= __get_user(temp, &gregs[26]); // Not really necessary no user settable bits + regs->estatus = (regs->estatus & 0xffffffff) | (temp & 0x0); + err |= __get_user(regs->status_extension, + &uc->uc_mcontext.status_extension); + regs->orig_r2 = -1; /* disable syscall checks */ + + if (do_sigaltstack(&uc->uc_stack, NULL, usp) == -EFAULT) + goto badframe; + + *pr2 = regs->r2; + return err; + +badframe: + return 1; +} + +asmlinkage int do_sigreturn(struct pt_regs *regs) +{ + struct sigframe *frame = (struct sigframe *) regs->sp; + sigset_t set; + int rval; + + if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__get_user(set.sig[0], &frame->sc.sc_mask) || + (_NSIG_WORDS > 1 && + __copy_from_user(&set.sig[1], &frame->extramask, + sizeof(frame->extramask)))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (restore_sigcontext(regs, &frame->sc, frame + 1, &rval)) + goto badframe; + return rval; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +asmlinkage int do_rt_sigreturn(struct switch_stack *sw) +{ + struct pt_regs *regs = (struct pt_regs *) sw + 1; + struct rt_sigframe *frame = (struct rt_sigframe *) regs->sp; // Verify, can we follow the stack back + sigset_t set; + int rval; + + if (verify_area(VERIFY_READ, frame, sizeof(*frame))) + goto badframe; + if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + goto badframe; + + sigdelsetmask(&set, ~_BLOCKABLE); + spin_lock_irq(¤t->sighand->siglock); + current->blocked = set; + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + + if (rt_restore_ucontext(regs, sw, &frame->uc, &rval)) + goto badframe; + return rval; + +badframe: + force_sig(SIGSEGV, current); + return 0; +} + +#ifdef CONFIG_FPU +/* + * Set up a signal frame. + * + * Not converted, no FPU support at moment. + */ + +static inline int save_fpu_state(struct sigcontext *sc, struct pt_regs *regs) +{ + int err = 0; + + if (FPU_IS_EMU) { + /* save registers */ + err |= copy_to_user(&sc->sc_fpcntl, current->thread.fpcntl, 12); + err |= copy_to_user(&sc->sc_fpregs, current->thread.fp, 24); + return err; + } + + __asm__ volatile ("Nios II FPUt" + : : ); + + if (sc->sc_fpstate[0]) { + fpu_version = sc->sc_fpstate[0]; + __asm__ volatile ("Nios II FPU" + : /* no outputs */ + : + : ); + } + return err; +} + +static inline int rt_save_fpu_state(struct ucontext *uc, struct pt_regs *regs) +{ + unsigned char fpstate[FPCONTEXT_SIZE]; + int context_size = 0; + int err = 0; + + if (FPU_IS_EMU) { + /* save fpu control register */ + err |= copy_to_user(&uc->uc_mcontext.fpregs.f_pcr, + current->thread.fpcntl, 12); + /* save all other fpu register */ + err |= copy_to_user(uc->uc_mcontext.fpregs.f_fpregs, + current->thread.fp, 96); + return err; + } + + __asm__ volatile ("Nios II FPU" + : : : ); + + err |= __put_user(*(long *)fpstate, (long *)&uc->uc_fpstate); + if (fpstate[0]) { + fpregset_t fpregs; + context_size = fpstate[1]; + fpu_version = fpstate[0]; + __asm__ volatile ("Nios II FPU" + : /* no outputs */ + : + : ); + err |= copy_to_user(&uc->uc_mcontext.fpregs, &fpregs, + sizeof(fpregs)); + } + if (context_size) + err |= copy_to_user((long *)&uc->uc_fpstate + 1, fpstate + 4, + context_size); + return err; +} + +#endif + +static int setup_sigcontext(struct sigcontext *sc, struct pt_regs *regs, + unsigned long mask) +{ + int err = 0; + + err |= __put_user(mask, &sc->sc_mask); + err |= copy_to_user(&sc->regs, regs, sizeof(*regs)); +#ifdef CONFIG_FPU + err |= save_fpu_state(sc, regs); +#endif + return err; +} + +static inline int rt_setup_ucontext(struct ucontext *uc, struct pt_regs *regs) +{ + struct switch_stack *sw = (struct switch_stack *)regs - 1; + greg_t *gregs = uc->uc_mcontext.gregs; + int err = 0; + + err |= __put_user(MCONTEXT_VERSION, &uc->uc_mcontext.version); + err |= __put_user(regs->status_extension, + &uc->uc_mcontext.status_extension); + err |= __put_user(regs->r1, &gregs[0]); + err |= __put_user(regs->r2, &gregs[1]); + err |= __put_user(regs->r3, &gregs[2]); + err |= __put_user(regs->r4, &gregs[3]); + err |= __put_user(regs->r5, &gregs[4]); + err |= __put_user(regs->r6, &gregs[5]); + err |= __put_user(regs->r7, &gregs[6]); + err |= __put_user(regs->r8, &gregs[7]); + err |= __put_user(regs->r9, &gregs[8]); + err |= __put_user(regs->r10, &gregs[9]); + err |= __put_user(regs->r11, &gregs[10]); + err |= __put_user(regs->r12, &gregs[11]); + err |= __put_user(regs->r13, &gregs[12]); + err |= __put_user(regs->r14, &gregs[13]); + err |= __put_user(regs->r15, &gregs[14]); + err |= __put_user(sw->r16, &gregs[15]); + err |= __put_user(sw->r17, &gregs[16]); + err |= __put_user(sw->r18, &gregs[17]); + err |= __put_user(sw->r19, &gregs[18]); + err |= __put_user(sw->r20, &gregs[19]); + err |= __put_user(sw->r21, &gregs[20]); + err |= __put_user(sw->r22, &gregs[21]); + err |= __put_user(sw->r23, &gregs[22]); + err |= __put_user(regs->sp, &gregs[23]); + err |= __put_user(sw->fp, &gregs[24]); + err |= __put_user(sw->gp, &gregs[25]); +#ifdef CONFIG_FPU + err |= rt_save_fpu_state(uc, regs); +#endif + return err; +} + +extern void cache_push_v (unsigned long vaddr, int len); + +static inline void push_cache (unsigned long vaddr) +{ + cache_push_v(vaddr,12); +} + +static inline void * +get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) +{ + unsigned long usp; + + /* Default to using normal stack. */ + usp = regs->sp; + + /* This is the X/Open sanctioned signal stack switching. */ + if (ka->sa.sa_flags & SA_ONSTACK) { + if (!on_sig_stack(usp)) + usp = current->sas_ss_sp + current->sas_ss_size; + } + return (void *)((usp - frame_size) & -8UL); // Verify, is it 32 or 64 bit aligned +} + +static void setup_frame (int sig, struct k_sigaction *ka, + sigset_t *set, struct pt_regs *regs) +{ + struct sigframe *frame; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + if (_NSIG_WORDS > 1) + err |= copy_to_user(frame->extramask, &set->sig[1], + sizeof(frame->extramask)); + + err |= setup_sigcontext(&frame->sc, regs, set->sig[0]); + + /* Set up to return from userspace. */ + regs->ra = (unsigned long) &frame->retcode[0]; + /* movi r3,__NR_sigreturn */ + err |= __put_user(0x00c00004 + (__NR_sigreturn << 6), (long *)(frame->retcode)); + /* mov r2,r0 */ + err |= __put_user(0x0005883a, (long *)(frame->retcode + 4)); + /* trap */ + err |= __put_user(0x003b683a, (long *)(frame->retcode + 8)); + + if (err) + goto give_sigsegv; + + push_cache ((unsigned long) &frame->retcode); + + /* Set up registers for signal handler */ + regs->sp = (unsigned long) frame; + regs->r4 = (unsigned long) (current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig); + regs->ea = (unsigned long) ka->sa.sa_handler; + return; + +give_sigsegv: + if (sig == SIGSEGV) + ka->sa.sa_handler = SIG_DFL; + force_sig(SIGSEGV, current); +} + +static void setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *set, struct pt_regs *regs) +{ + struct rt_sigframe *frame; + int err = 0; + + frame = get_sigframe(ka, regs, sizeof(*frame)); + + err |= copy_siginfo_to_user(&frame->info, info); + + /* Create the ucontext. */ + err |= __put_user(0, &frame->uc.uc_flags); + err |= __put_user(0, &frame->uc.uc_link); + err |= __put_user((void *)current->sas_ss_sp, + &frame->uc.uc_stack.ss_sp); + err |= __put_user(sas_ss_flags(regs->sp), + &frame->uc.uc_stack.ss_flags); + err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); + err |= rt_setup_ucontext(&frame->uc, regs); + err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set)); + + /* Set up to return from userspace. */ + regs->ra = (unsigned long) &frame->retcode[0]; + /* movi r3,__NR_rt_sigreturn */ + err |= __put_user(0x00c00004 + (__NR_rt_sigreturn << 6), (long *)(frame->retcode)); + /* mov r2,r0 */ + err |= __put_user(0x0005883a, (long *)(frame->retcode + 4)); + /* trap */ + err |= __put_user(0x003b683a, (long *)(frame->retcode + 8)); + + if (err) + goto give_sigsegv; + + push_cache ((unsigned long) &frame->retcode); + + /* Set up registers for signal handler */ + regs->sp = (unsigned long) frame; + regs->r4 = (unsigned long) (current_thread_info()->exec_domain + && current_thread_info()->exec_domain->signal_invmap + && sig < 32 + ? current_thread_info()->exec_domain->signal_invmap[sig] + : sig); + regs->r5 = (unsigned long) &frame->info; + regs->r6 = (unsigned long) &frame->uc; + regs->ea = (unsigned long) ka->sa.sa_handler; + return; + +give_sigsegv: + if (sig == SIGSEGV) + ka->sa.sa_handler = SIG_DFL; + force_sig(SIGSEGV, current); +} + +static inline void +handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) +{ + switch (regs->r2) { + case -ERESTARTNOHAND: + if (!has_handler) + goto do_restart; + regs->r2 = -EINTR; + break; + + case -ERESTARTSYS: + if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) { + regs->r2 = -EINTR; + break; + } + /* fallthrough */ + case -ERESTARTNOINTR: + do_restart: + regs->r2 = regs->orig_r2; + regs->ea -= 4; + break; + } +} + +/* + * OK, we're invoking a handler + */ +static void +handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, + sigset_t *oldset, struct pt_regs *regs) +{ + /* are we from a system call? */ + if (regs->orig_r2 >= 0) + /* If so, check system call restarting.. */ + handle_restart(regs, ka, 1); + + /* set up the stack frame */ + if (ka->sa.sa_flags & SA_SIGINFO) + setup_rt_frame(sig, ka, info, oldset, regs); + else + setup_frame(sig, ka, oldset, regs); + + if (ka->sa.sa_flags & SA_ONESHOT) + ka->sa.sa_handler = SIG_DFL; + + if (!(ka->sa.sa_flags & SA_NODEFER)) { + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + sigaddset(¤t->blocked,sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + } +} + +/* + * Note that 'init' is a special process: it doesn't get signals it doesn't + * want to handle. Thus you cannot kill init even with a SIGKILL even by + * mistake. + */ +asmlinkage int do_signal(sigset_t *oldset, struct pt_regs *regs) +{ + struct k_sigaction ka; + siginfo_t info; + int signr; + + /* + * We want the common case to go fast, which + * is why we may in certain cases get here from + * kernel mode. Just return without doing anything + * if so. + */ + if (!user_mode(regs)) + return 1; + + /* FIXME - Do we still need to do this ? */ + current->thread.kregs = regs; + + if (!oldset) + oldset = ¤t->blocked; + + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + if (signr > 0) { + /* Whee! Actually deliver the signal. */ + handle_signal(signr, &ka, &info, oldset, regs); + return 1; + } + + /* Did we come from a system call? */ + if (regs->orig_r2 >= 0){ + /* Restart the system call - no handlers present */ + if (regs->r2 == -ERESTARTNOHAND + || regs->r2 == -ERESTARTSYS + || regs->r2 == -ERESTARTNOINTR) { + regs->r2 = regs->orig_r2; + regs->ea -= 4; + } else if (regs->r2 == -ERESTART_RESTARTBLOCK) { + regs->r2 = __NR_restart_syscall; + regs->ea -= 4; + } + } + return 0; +} diff --git a/arch/nios2nommu/kernel/start.c b/arch/nios2nommu/kernel/start.c new file mode 100644 index 0000000..bca81fc --- /dev/null +++ b/arch/nios2nommu/kernel/start.c @@ -0,0 +1,502 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/start.c + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * May/20/2005 dgt Altera NiosII Custom shift instr(s) + * possibly assumed by memcpy, etc; ensure + * "correct" core loaded therefore if so. + * + ---------------------------------------------------------------------*/ + + +#include +#include +#include +#include +#include +#include +#include + + #ifdef CONFIG_SERIAL_AJUART //;dgt;20may05; + #ifdef CONFIG_SERIAL_AJUART_CONSOLE //;dgt;20may05; + + #include //;dgt;20may05; + #include //;dgt;20may05; + + extern struct console juart_console; //;dgt;20may05; + + #endif // CONFIG_SERIAL_AJUART //;dgt;20may05; + #endif // CONFIG_SERIAL_AJUART_CONSOLE //;dgt;20may05; + +//;dgt;20may05; #ifdef CONFIG_CRC_CHECK + +// #if defined(CONFIG_NIOS_SERIAL) //;dgt;20may05; +// #if defined(CONFIG_NIOS_SERIAL_CONSOLE) //;dgt;20may05; + #if defined(nasys_printf_uart) //;dgt;20may05; + static void putsNoNewLine( unsigned char *s ) + { + while(*s) { + while (!(nasys_printf_uart->np_uartstatus & + np_uartstatus_trdy_mask)); + nasys_printf_uart->np_uarttxdata = *s++; + } + } + + #define NL "\r\n" + static void puts(unsigned char *s) + { + putsNoNewLine( s ); + putsNoNewLine( NL ); + } + #endif // nasys_printf_uart //;dgt;20may05; +// #endif // CONFIG_NIOS_SERIAL_CONSOLE) //;dgt;20may05; +// #endif // CONFIG_NIOS_SERIAL) //;dgt;20may05; + +#ifdef CONFIG_CRC_CHECK //;dgt;20may05; + +#if 1 +#define outchar(X) { \ + while (!(nasys_printf_uart->np_uartstatus & np_uartstatus_trdy_mask)); \ + nasys_printf_uart->np_uarttxdata = (X); } +#else +#define outchar(X) putchar(X) +#endif +#define outhex(X,Y) { \ + unsigned long __w; \ + __w = ((X) >> (Y)) & 0xf; \ + __w = __w > 0x9 ? 'A' + __w - 0xa : '0' + __w; \ + outchar(__w); } +#define outhex8(X) { \ + outhex(X,4); \ + outhex(X,0); } +#define outhex16(X) { \ + outhex(X,12); \ + outhex(X,8); \ + outhex(X,4); \ + outhex(X,0); } +#define outhex32(X) { \ + outhex(X,28); \ + outhex(X,24); \ + outhex(X,20); \ + outhex(X,16); \ + outhex(X,12); \ + outhex(X,8); \ + outhex(X,4); \ + outhex(X,0); } +#endif + +#if 0 +static unsigned long testvar = 0xdeadbeef; +#endif + +#ifdef CONFIG_CRC_CHECK + + +/******************************************************/ + + +extern unsigned long __CRC_Table_Begin; + +typedef unsigned char U8; +typedef unsigned long U32; + +/* Table of CRC-32's of all single byte values */ +const U32 crc_32_tab[] = { + 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L, + 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L, + 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L, + 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL, + 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L, + 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L, + 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L, + 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL, + 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L, + 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL, + 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L, + 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L, + 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L, + 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL, + 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL, + 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L, + 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL, + 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L, + 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L, + 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L, + 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL, + 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L, + 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L, + 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL, + 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L, + 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L, + 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L, + 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L, + 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L, + 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL, + 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL, + 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L, + 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L, + 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL, + 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL, + 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L, + 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL, + 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L, + 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL, + 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L, + 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL, + 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L, + 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L, + 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL, + 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L, + 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L, + 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L, + 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L, + 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L, + 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L, + 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, + 0x2d02ef8dL +}; + +U32 Calc_CRC( const U8 *p, U32 len ) +{ + U32 crc = (U32)~0L; + while (len--) + crc = crc_32_tab[0xFF & (crc ^ *p++)] ^ (crc >> 8); + + return crc ^ (U32)~0L; +} + + + +/******************************************************/ + + +/* hjz: Following time stuff is hacked and modified from uC-libc (various files), which in turn was... */ +/* This is adapted from glibc */ +/* Copyright (C) 1991, 1993 Free Software Foundation, Inc */ + +#define SECS_PER_HOUR 3600L +#define SECS_PER_DAY 86400L +typedef unsigned long time_t; + + +static const unsigned short int __mon_lengths[2][12] = { + /* Normal years. */ + {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}, + /* Leap years. */ + {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31} +}; +/* This global is exported to the wide world in keeping + * with the interface in time.h */ +long int timezone = 0; + +static const char *dayOfWeek[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" }; +static const char *month[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", + "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" }; + +/* Nonzero if YEAR is a leap year (every 4 years, + except every 100th isn't, and every 400th is). */ +# define __isleap(year) ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0)) + +struct tm +{ + int tm_sec; /* Seconds. [0-60] (1 leap second) */ + int tm_min; /* Minutes. [0-59] */ + int tm_hour; /* Hours. [0-23] */ + int tm_mday; /* Day. [1-31] */ + int tm_mon; /* Month. [0-11] */ + int tm_year; /* Year - 1900. */ + int tm_wday; /* Day of week. [0-6] */ + int tm_yday; /* Days in year.[0-365] */ + int tm_isdst; /* DST. [-1/0/1]*/ + +# ifdef __USE_BSD + long int tm_gmtoff; /* Seconds east of UTC. */ + __const char *tm_zone; /* Timezone abbreviation. */ +# else + long int __tm_gmtoff; /* Seconds east of UTC. */ + __const char *__tm_zone; /* Timezone abbreviation. */ +# endif +}; + +void __tm_conv(struct tm *tmbuf, time_t *t, time_t offset) +{ + long days, rem; + register int y; + register const unsigned short int *ip; + + timezone = -offset; + + days = *t / SECS_PER_DAY; + rem = *t % SECS_PER_DAY; + rem += offset; + while (rem < 0) + { + rem += SECS_PER_DAY; + days--; + } + while (rem >= SECS_PER_DAY) + { + rem -= SECS_PER_DAY; + days++; + } + + tmbuf->tm_hour = rem / SECS_PER_HOUR; + rem %= SECS_PER_HOUR; + tmbuf->tm_min = rem / 60; + tmbuf->tm_sec = rem % 60; + + /* January 1, 1970 was a Thursday. */ + tmbuf->tm_wday = (4 + days) % 7; + if (tmbuf->tm_wday < 0) + tmbuf->tm_wday += 7; + + y = 1970; + while (days >= (rem = __isleap(y) ? 366 : 365)) + { + y++; + days -= rem; + } + + while (days < 0) + { + y--; + days += __isleap(y) ? 366 : 365; + } + + tmbuf->tm_year = y - 1900; + tmbuf->tm_yday = days; + + ip = __mon_lengths[__isleap(y)]; + for (y = 0; days >= ip[y]; ++y) + days -= ip[y]; + + tmbuf->tm_mon = y; + tmbuf->tm_mday = days + 1; + tmbuf->tm_isdst = -1; +} + + + +/* hjz: NOT your traditional ctime: This one includes timezone */ +/* (UTC) and excludes the traditional trailing newline. */ +char *CTime( time_t *t ) +{ + static char theTime[29]; + struct tm tm; + + __tm_conv( &tm, t, 0 ); + sprintf( theTime, "%s %s %02d %02d:%02d:%02d UTC %04d", + dayOfWeek[tm.tm_wday], month[tm.tm_mon], tm.tm_mday, + tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_year + 1900 ); + + return theTime; +} + +/******************************************************/ + + +/* hjz: polled-I/O: Get a char if one is ready, or return -1 */ +int getc( void ) +{ + if ( nasys_printf_uart->np_uartstatus & np_uartstatus_rrdy_mask ) + return nasys_printf_uart->np_uartrxdata; + else + return -1; +} + + +typedef unsigned long off_t; +typedef struct +{ + U8 *startAddr; + U8 *endAddr; + U32 CRC; + time_t mtime; + off_t size; // File size + char id[44]; // Filename. If path exceeds available size, name is "..." + last 40 chars of given filename + char host[32]; // hostname. If name exceeds available size name is first 28 chars of hostname + "..." +} FLASH_REGION_DESC; + + +int Test_Flash_Regions(void) +{ + FLASH_REGION_DESC *pRegion = (FLASH_REGION_DESC *)&__CRC_Table_Begin; + U32 crc; + char cBuff[256]; + int nrFailedRegions = 0; + int regionStatus; + int i; + unsigned int startAddr = (int) pRegion->startAddr; + unsigned int endAddr = (int) pRegion->endAddr; + + puts( "***Checking flash CRC's" ); + if ( (startAddr == -1) || (startAddr >= endAddr) + || !( ((startAddr >= (int) NIOS_FLASH_START) && (endAddr < (int) NIOS_FLASH_END)) + || ((startAddr >= (int) na_flash) && (endAddr < (int) na_flash_end)) ) ) + { + puts( " No Flash regions defined." ); + return -1; + } + + + for ( i = 0; pRegion->startAddr && pRegion->startAddr != (U8 *)~0L; pRegion++, i++ ) + { + crc = Calc_CRC( pRegion->startAddr, pRegion->endAddr - pRegion->startAddr ); + if ( crc != pRegion->CRC ) + { + regionStatus = 1; + nrFailedRegions++; + } + else + regionStatus = 0; + + sprintf( cBuff, " Region %d: 0x%08lX - 0x%08lX, CRC = 0x%08lX --> %s" NL + " From file `%s' on host `%s'" NL + " Dated %s, size = %lu bytes", + i, (U32)pRegion->startAddr, (U32)pRegion->endAddr, pRegion->CRC, + regionStatus ? "***Failed" : "Passed", + pRegion->id, pRegion->host, CTime( &pRegion->mtime ), pRegion->size + ); + puts( cBuff ); + } + + return nrFailedRegions; +} +#endif /* CONFIG_CRC_CHECK */ + + +int main(void) { + +#ifdef DEBUG + puts("MAIN: starting c\n"); +#endif + +#ifdef CONFIG_KGDB /* builtin GDB stub */ + +/* Set up GDB stub, and make the first trap into it */ + nios_gdb_install(1); +#ifdef CONFIG_BREAK_ON_START + puts( "MAIN: trapping to debugger - make sure nios-elf-gdb is running on host." ); + nios_gdb_breakpoint(); + nop(); +#endif + +#endif /* CONFIG_KGDB */ + +#ifdef CONFIG_CRC_CHECK + #ifdef CONFIG_PROMPT_ON_MISSING_CRC_TABLES + if ( Test_Flash_Regions() ) + #else + if ( Test_Flash_Regions() > 0 ) + #endif + { + int c; + char tmp[3]; + while ( getc() != -1 ) // flush input + ; + + putsNoNewLine( " Do you wish to continue (Y/N) ? " ); + while ( 1 ) + { + c = getc(); + if ( c == -1 ) + continue; + + if ( !isprint( c ) ) + c = '?'; + + sprintf( tmp, "\b%c", c ); + putsNoNewLine( tmp ); + c = toupper( c ); + if ( c == 'Y' ) + { + puts( "" ); + break; + } + + if ( c == 'N' ) + { + puts( NL "***Trapping to monitor..." ); + return -1; + } + } + } + puts( "***Starting kernel..." ); + +#endif + + // Altera NiosII Custom shift instr(s) possibly //;dgt; + // assumed by memcpy, etc; ensure "correct" core //;dgt; + // loaded therefore if so. //;dgt; + + #if defined(ALT_CI_ALIGN_32_N) //;dgt; + if(ALT_CI_ALIGN_32(1, 0xA9876543, //;dgt; + 0xB210FEDC) != 0x10FEDCA9) //;dgt; + { //;dgt; + goto badshiftci_label; //;dgt; + } //;dgt; + if(ALT_CI_ALIGN_32(2, 0xA9876543, //;dgt; + 0xB210FEDC) != 0xFEDCA987) //;dgt; + { //;dgt; + goto badshiftci_label; //;dgt; + } //;dgt; + if(ALT_CI_ALIGN_32(3, 0xA9876543, //;dgt; + 0xB210FEDC) != 0xDCA98765) //;dgt; + { //;dgt; + goto badshiftci_label; //;dgt; + } //;dgt; + #endif //;dgt; + goto gudshiftci_label; //;dgt; +badshiftci_label: //;dgt; + { //;dgt; + unsigned char BadCImsg[] = //;dgt; + "?...ALT_CI_ALIGNn_321() NOT expected" //;dgt; + " NiosII custom instruction\n"; //;dgt; + unsigned char CIabortMsg[] = //;dgt; + " ...aborting uClinux startup..."; //;dgt; + + #ifdef CONFIG_SERIAL_AJUART //;dgt; + #ifdef CONFIG_SERIAL_AJUART_CONSOLE //;dgt; + juart_console.index = 0; //;dgt; + jtaguart_console_write(&(juart_console), //;dgt; + BadCImsg, //;dgt; + strlen(BadCImsg)); //;dgt; + jtaguart_console_write(&(juart_console), //;dgt; + CIabortMsg, //;dgt; + strlen(CIabortMsg)); //;dgt; + #endif // CONFIG_SERIAL_AJUART //;dgt; + #endif // CONFIG_SERIAL_AJUART_CONSOLE //;dgt; + +// #if defined(CONFIG_NIOS_SERIAL) //;dgt; +// #if defined(CONFIG_NIOS_SERIAL_CONSOLE) //;dgt; + #if defined(nasys_printf_uart) //;dgt; + puts(BadCImsg); //;dgt; + puts(CIabortMsg); //;dgt; + #endif // nasys_printf_uart //;dgt; +// #endif // CONFIG_NIOS_SERIAL_CONSOLE) //;dgt; +// #endif // CONFIG_NIOS_SERIAL) //;dgt; + + panic(" ...wrong fpga core?..."); //;dgt; + } //;dgt; + +gudshiftci_label: //;dgt; + + start_kernel(); + return 0; +} diff --git a/arch/nios2nommu/kernel/sys_nios2.c b/arch/nios2nommu/kernel/sys_nios2.c new file mode 100644 index 0000000..8018fb0 --- /dev/null +++ b/arch/nios2nommu/kernel/sys_nios2.c @@ -0,0 +1,248 @@ +/* + * linux/arch/nios2nommu/kernel/sys_nios2.c + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * This file contains various random system calls that + * have a non-standard calling sequence on the Linux/nios2nommu + * platform. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +/* + * sys_pipe() is the normal C calling standard for creating + * a pipe. It's not the way unix traditionally does this, though. + */ +asmlinkage int sys_pipe(unsigned long * fildes) +{ + int fd[2]; + int error; + + error = do_pipe(fd); + if (!error) { + if (copy_to_user(fildes, fd, 2*sizeof(int))) + error = -EFAULT; + } + return error; +} + +/* common code for old and new mmaps */ +static inline long do_mmap2( + unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff) +{ + int error = -EBADF; + struct file * file = NULL; + + flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + if (!(flags & MAP_ANONYMOUS)) { + file = fget(fd); + if (!file) + goto out; + } + + down_write(¤t->mm->mmap_sem); + error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); + up_write(¤t->mm->mmap_sem); + + if (file) + fput(file); +out: + return error; +} + +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff) +{ + return do_mmap2(addr, len, prot, flags, fd, pgoff); +} + +/* + * Perform the select(nd, in, out, ex, tv) and mmap() system + * calls. Linux/m68k cloned Linux/i386, which didn't use to be able to + * handle more than 4 system call parameters, so these system calls + * used a memory block for parameter passing.. + */ + +struct mmap_arg_struct { + unsigned long addr; + unsigned long len; + unsigned long prot; + unsigned long flags; + unsigned long fd; + unsigned long offset; +}; + +asmlinkage int old_mmap(struct mmap_arg_struct *arg) +{ + struct mmap_arg_struct a; + int error = -EFAULT; + + if (copy_from_user(&a, arg, sizeof(a))) + goto out; + + error = -EINVAL; + if (a.offset & ~PAGE_MASK) + goto out; + + a.flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); + + error = do_mmap2(a.addr, a.len, a.prot, a.flags, a.fd, a.offset >> PAGE_SHIFT); +out: + return error; +} + +struct sel_arg_struct { + unsigned long n; + fd_set *inp, *outp, *exp; + struct timeval *tvp; +}; + +asmlinkage int old_select(struct sel_arg_struct *arg) +{ + struct sel_arg_struct a; + + if (copy_from_user(&a, arg, sizeof(a))) + return -EFAULT; + /* sys_select() does the appropriate kernel locking */ + return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp); +} + +/* + * sys_ipc() is the de-multiplexer for the SysV IPC calls.. + * + * This is really horribly ugly. + */ +asmlinkage int sys_ipc (uint call, int first, int second, + int third, void *ptr, long fifth) +{ + int version; + + version = call >> 16; /* hack for backward compatibility */ + call &= 0xffff; + + if (call <= SEMCTL) + switch (call) { + case SEMOP: + return sys_semop (first, (struct sembuf *)ptr, second); + case SEMGET: + return sys_semget (first, second, third); + case SEMCTL: { + union semun fourth; + if (!ptr) + return -EINVAL; + if (get_user(fourth.__pad, (void **) ptr)) + return -EFAULT; + return sys_semctl (first, second, third, fourth); + } + default: + return -EINVAL; + } + if (call <= MSGCTL) + switch (call) { + case MSGSND: + return sys_msgsnd (first, (struct msgbuf *) ptr, + second, third); + case MSGRCV: + switch (version) { + case 0: { + struct ipc_kludge tmp; + if (!ptr) + return -EINVAL; + if (copy_from_user (&tmp, + (struct ipc_kludge *)ptr, + sizeof (tmp))) + return -EFAULT; + return sys_msgrcv (first, tmp.msgp, second, + tmp.msgtyp, third); + } + default: + return sys_msgrcv (first, + (struct msgbuf *) ptr, + second, fifth, third); + } + case MSGGET: + return sys_msgget ((key_t) first, second); + case MSGCTL: + return sys_msgctl (first, second, + (struct msqid_ds *) ptr); + default: + return -EINVAL; + } + + return -EINVAL; +} + +/* sys_cacheflush -- flush the processor cache. */ +asmlinkage int +sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len) +{ + flush_cache_all(); + return(0); +} + +asmlinkage int sys_getpagesize(void) +{ + return PAGE_SIZE; +} + +/* + * Do a system call from kernel instead of calling sys_execve so we + * end up with proper pt_regs. + */ +int kernel_execve(const char *filename, char *const argv[], char *const envp[]) +{ + register long __res __asm__ ("r2") = TRAP_ID_SYSCALL; + register long __sc __asm__ ("r3") = __NR_execve; + register long __a __asm__ ("r4") = (long) filename; + register long __b __asm__ ("r5") = (long) argv; + register long __c __asm__ ("r6") = (long) envp; + __asm__ __volatile__ ("trap" : "=r" (__res) + : "0" (__res), "r" (__sc), "r" (__a), "r" (__b), "r" (__c) + : "memory"); + + return __res; +} diff --git a/arch/nios2nommu/kernel/syscalltable.S b/arch/nios2nommu/kernel/syscalltable.S new file mode 100644 index 0000000..3507e24 --- /dev/null +++ b/arch/nios2nommu/kernel/syscalltable.S @@ -0,0 +1,362 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/syscalltable.S + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2000 Lineo Inc. (www.lineo.com) + * Copyright (C) 1998 D. Jeff Dionne , + * Kenneth Albanowski , + * Copyright (C) 1991, 1992 Linus Torvalds + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#include +#include +#include +#include + +.text +ALIGN +ENTRY(sys_call_table) + .long sys_ni_syscall /* 0 - old "setup()" system call*/ + .long sys_exit + .long sys_fork + .long sys_read + .long sys_write + .long sys_open /* 5 */ + .long sys_close + .long sys_waitpid + .long sys_creat + .long sys_link + .long sys_unlink /* 10 */ + .long sys_execve + .long sys_chdir + .long sys_time + .long sys_mknod + .long sys_chmod /* 15 */ + .long sys_chown16 + .long sys_ni_syscall /* old break syscall holder */ + .long sys_stat + .long sys_lseek + .long sys_getpid /* 20 */ + .long sys_mount + .long sys_oldumount + .long sys_setuid16 + .long sys_getuid16 + .long sys_stime /* 25 */ + .long sys_ptrace + .long sys_alarm + .long sys_fstat + .long sys_pause + .long sys_utime /* 30 */ + .long sys_ni_syscall /* old stty syscall holder */ + .long sys_ni_syscall /* old gtty syscall holder */ + .long sys_access + .long sys_nice + .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ + .long sys_sync + .long sys_kill + .long sys_rename + .long sys_mkdir + .long sys_rmdir /* 40 */ + .long sys_dup + .long sys_pipe + .long sys_times + .long sys_ni_syscall /* old prof syscall holder */ + .long sys_brk /* 45 */ + .long sys_setgid16 + .long sys_getgid16 + .long sys_signal + .long sys_geteuid16 + .long sys_getegid16 /* 50 */ + .long sys_acct + .long sys_umount /* recycled never used phys() */ + .long sys_ni_syscall /* old lock syscall holder */ + .long sys_ioctl + .long sys_fcntl /* 55 */ + .long sys_ni_syscall /* old mpx syscall holder */ + .long sys_setpgid + .long sys_ni_syscall /* old ulimit syscall holder */ + .long sys_ni_syscall + .long sys_umask /* 60 */ + .long sys_chroot + .long sys_ustat + .long sys_dup2 + .long sys_getppid + .long sys_getpgrp /* 65 */ + .long sys_setsid + .long sys_sigaction + .long sys_sgetmask + .long sys_ssetmask + .long sys_setreuid16 /* 70 */ + .long sys_setregid16 + .long sys_sigsuspend + .long sys_sigpending + .long sys_sethostname + .long sys_setrlimit /* 75 */ + .long sys_old_getrlimit + .long sys_getrusage + .long sys_gettimeofday + .long sys_settimeofday + .long sys_getgroups16 /* 80 */ + .long sys_setgroups16 + .long old_select + .long sys_symlink + .long sys_lstat + .long sys_readlink /* 85 */ + .long sys_uselib + .long sys_ni_syscall /* sys_swapon */ + .long sys_reboot + .long old_readdir + .long old_mmap /* 90 */ + .long sys_munmap + .long sys_truncate + .long sys_ftruncate + .long sys_fchmod + .long sys_fchown16 /* 95 */ + .long sys_getpriority + .long sys_setpriority + .long sys_ni_syscall /* old profil syscall holder */ + .long sys_statfs + .long sys_fstatfs /* 100 */ + .long sys_ni_syscall /* was ioperm */ + .long sys_socketcall + .long sys_syslog + .long sys_setitimer + .long sys_getitimer /* 105 */ + .long sys_newstat + .long sys_newlstat + .long sys_newfstat + .long sys_ni_syscall + .long sys_ni_syscall /* iopl for i386 */ /* 110 */ + .long sys_vhangup + .long sys_ni_syscall /* obsolete idle() syscall */ + .long sys_ni_syscall /* vm86old for i386 */ + .long sys_wait4 + .long sys_ni_syscall /* 115 */ /* sys_swapoff */ + .long sys_sysinfo + .long sys_ipc + .long sys_fsync + .long sys_sigreturn + .long sys_clone /* 120 */ + .long sys_setdomainname + .long sys_newuname + .long sys_cacheflush /* modify_ldt for i386 */ + .long sys_adjtimex + .long sys_ni_syscall /* 125 */ /* sys_mprotect */ + .long sys_sigprocmask + .long sys_ni_syscall /* old "creat_module" */ + .long sys_init_module + .long sys_delete_module + .long sys_ni_syscall /* 130: old "get_kernel_syms" */ + .long sys_quotactl + .long sys_getpgid + .long sys_fchdir + .long sys_bdflush + .long sys_sysfs /* 135 */ + .long sys_personality + .long sys_ni_syscall /* for afs_syscall */ + .long sys_setfsuid16 + .long sys_setfsgid16 + .long sys_llseek /* 140 */ + .long sys_getdents + .long sys_select + .long sys_flock + .long sys_ni_syscall /* sys_msync */ + .long sys_readv /* 145 */ + .long sys_writev + .long sys_getsid + .long sys_fdatasync + .long sys_sysctl + .long sys_ni_syscall /* 150 */ /* sys_mlock */ + .long sys_ni_syscall /* sys_munlock */ + .long sys_ni_syscall /* sys_mlockall */ + .long sys_ni_syscall /* sys_munlockall */ + .long sys_sched_setparam + .long sys_sched_getparam /* 155 */ + .long sys_sched_setscheduler + .long sys_sched_getscheduler + .long sys_sched_yield + .long sys_sched_get_priority_max + .long sys_sched_get_priority_min /* 160 */ + .long sys_sched_rr_get_interval + .long sys_nanosleep + .long sys_ni_syscall /* sys_mremap */ + .long sys_setresuid16 + .long sys_getresuid16 /* 165 */ + .long sys_getpagesize /* sys_getpagesize */ + .long sys_ni_syscall /* old "query_module" */ + .long sys_poll + .long sys_ni_syscall /* sys_nfsservctl */ + .long sys_setresgid16 /* 170 */ + .long sys_getresgid16 + .long sys_prctl + .long sys_rt_sigreturn + .long sys_rt_sigaction + .long sys_rt_sigprocmask /* 175 */ + .long sys_rt_sigpending + .long sys_rt_sigtimedwait + .long sys_rt_sigqueueinfo + .long sys_rt_sigsuspend + .long sys_pread64 /* 180 */ + .long sys_pwrite64 + .long sys_lchown16 + .long sys_getcwd + .long sys_capget + .long sys_capset /* 185 */ + .long sys_sigaltstack + .long sys_sendfile + .long sys_ni_syscall /* streams1 */ + .long sys_ni_syscall /* streams2 */ + .long sys_vfork /* 190 */ + .long sys_getrlimit + .long sys_mmap2 + .long sys_truncate64 + .long sys_ftruncate64 + .long sys_stat64 /* 195 */ + .long sys_lstat64 + .long sys_fstat64 + .long sys_chown + .long sys_getuid + .long sys_getgid /* 200 */ + .long sys_geteuid + .long sys_getegid + .long sys_setreuid + .long sys_setregid + .long sys_getgroups /* 205 */ + .long sys_setgroups + .long sys_fchown + .long sys_setresuid + .long sys_getresuid + .long sys_setresgid /* 210 */ + .long sys_getresgid + .long sys_lchown + .long sys_setuid + .long sys_setgid + .long sys_setfsuid /* 215 */ + .long sys_setfsgid + .long sys_pivot_root + .long sys_ni_syscall + .long sys_ni_syscall + .long sys_getdents64 /* 220 */ + .long sys_gettid + .long sys_tkill + .long sys_setxattr + .long sys_lsetxattr + .long sys_fsetxattr /* 225 */ + .long sys_getxattr + .long sys_lgetxattr + .long sys_fgetxattr + .long sys_listxattr + .long sys_llistxattr /* 230 */ + .long sys_flistxattr + .long sys_removexattr + .long sys_lremovexattr + .long sys_fremovexattr + .long sys_futex /* 235 */ + .long sys_sendfile64 + .long sys_ni_syscall /* sys_mincore */ + .long sys_ni_syscall /* sys_madvise */ + .long sys_fcntl64 + .long sys_readahead /* 240 */ + .long sys_io_setup + .long sys_io_destroy + .long sys_io_getevents + .long sys_io_submit + .long sys_io_cancel /* 245 */ + .long sys_fadvise64 + .long sys_exit_group + .long sys_lookup_dcookie + .long sys_epoll_create + .long sys_epoll_ctl /* 250 */ + .long sys_epoll_wait + .long sys_ni_syscall /* sys_remap_file_pages */ + .long sys_set_tid_address + .long sys_timer_create + .long sys_timer_settime /* 255 */ + .long sys_timer_gettime + .long sys_timer_getoverrun + .long sys_timer_delete + .long sys_clock_settime + .long sys_clock_gettime /* 260 */ + .long sys_clock_getres + .long sys_clock_nanosleep + .long sys_statfs64 + .long sys_fstatfs64 + .long sys_tgkill /* 265 */ + .long sys_utimes + .long sys_fadvise64_64 + .long sys_mbind + .long sys_get_mempolicy + .long sys_set_mempolicy /* 270 */ + .long sys_mq_open + .long sys_mq_unlink + .long sys_mq_timedsend + .long sys_mq_timedreceive + .long sys_mq_notify /* 275 */ + .long sys_mq_getsetattr + .long sys_waitid + .long sys_ni_syscall /* sys_setaltroot */ + .long sys_ni_syscall /* sys_add_key */ + .long sys_ni_syscall /* 280 */ /* sys_request_key */ + .long sys_ni_syscall /* sys_keyctl */ + .long sys_ioprio_set + .long sys_ioprio_get + .long sys_inotify_init + .long sys_inotify_add_watch /* 285 */ + .long sys_inotify_rm_watch + .long sys_migrate_pages + .long sys_openat + .long sys_mkdirat + .long sys_mknodat /* 290 */ + .long sys_fchownat + .long sys_futimesat + .long sys_fstatat64 + .long sys_unlinkat + .long sys_renameat /* 295 */ + .long sys_linkat + .long sys_symlinkat + .long sys_readlinkat + .long sys_fchmodat + .long sys_faccessat /* 300 */ + .long sys_ni_syscall /* Reserved for pselect6 */ + .long sys_ni_syscall /* Reserved for ppoll */ + .long sys_unshare + .long sys_set_robust_list + .long sys_get_robust_list /* 305 */ + .long sys_splice + .long sys_sync_file_range + .long sys_tee + .long sys_vmsplice + .long sys_move_pages /* 310 */ + .long sys_sched_setaffinity + .long sys_sched_getaffinity + .long sys_kexec_load + .long sys_getcpu + .long sys_epoll_pwait /* 315 */ + .long sys_utimensat + .long sys_signalfd + .long sys_timerfd + .long sys_eventfd + .long sys_pread64 + .long sys_pwrite64 /* 321 */ + + .rept NR_syscalls - 322 + .long sys_ni_syscall + .endr + diff --git a/arch/nios2nommu/kernel/time.c b/arch/nios2nommu/kernel/time.c new file mode 100644 index 0000000..3b536fe --- /dev/null +++ b/arch/nios2nommu/kernel/time.c @@ -0,0 +1,219 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/kernel/time.c + * + * Architecture specific time handling details. + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Most of the stuff is located in the machine specific files. + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * Copyright (C) 1998-2000 D. Jeff Dionne , + * Kenneth Albanowski , + * Copyright (C) 1991, 1992, 1995 Linus Torvalds + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#define TICK_SIZE (tick_nsec / 1000) + +unsigned long cpu_khz; +static inline int set_rtc_mmss(unsigned long nowtime) +{ + return 0; +} + +/* Timer timeout status */ +#define nios2_timer_TO (inw(&na_timer0->np_timerstatus) & np_timerstatus_to_mask) + +/* Timer snapshot */ +static inline unsigned long nios2_read_timercount(void) +{ + unsigned long count; + + outw(0, &na_timer0->np_timersnapl); + count = inw(&na_timer0->np_timersnaph) << 16 | inw(&na_timer0->np_timersnapl); + + return count; +} + +/* + * Should return useconds since last timer tick + */ +static unsigned long gettimeoffset(void) +{ + unsigned long offset; + unsigned long count; + + count = nios2_read_timercount(); + offset = ((nasys_clock_freq/HZ)-1 - nios2_read_timercount()) \ + / (nasys_clock_freq / USEC_PER_SEC); + + /* Check if we just wrapped the counters and maybe missed a tick */ + if (nios2_timer_TO && (offset < (100000 / HZ / 2))) + offset += (USEC_PER_SEC / HZ); + + return offset; +} + +/* + * timer_interrupt() needs to keep up the real-time clock, + * as well as call the "do_timer()" routine every clocktick + */ +irqreturn_t timer_interrupt(int irq, void *dummy) +{ + /* last time the cmos clock got updated */ + static long last_rtc_update=0; + + write_seqlock(&xtime_lock); + na_timer0->np_timerstatus = 0; /* Clear the interrupt condition */ + + do_timer(1); +#ifndef CONFIG_SMP + update_process_times(user_mode(get_irq_regs())); +#endif + profile_tick(CPU_PROFILING); + /* + * If we have an externally synchronized Linux clock, then update + * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be + * called as close as possible to 500 ms before the new second starts. + */ + if (ntp_synced() && + xtime.tv_sec > last_rtc_update + 660 && + (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && + (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { + if (set_rtc_mmss(xtime.tv_sec) == 0) + last_rtc_update = xtime.tv_sec; + else + last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */ + } + + write_sequnlock(&xtime_lock); + return(IRQ_HANDLED); +} + +void __init time_init(void) +{ + unsigned int year, mon, day, hour, min, sec; + int err; + + extern void arch_gettod(int *year, int *mon, int *day, int *hour, + int *min, int *sec); + + cpu_khz=nasys_clock_freq_1000; + arch_gettod(&year, &mon, &day, &hour, &min, &sec); + + if ((year += 1900) < 1970) + year += 100; + xtime.tv_sec = mktime(year, mon, day, hour, min, sec); + xtime.tv_nsec = 0; + wall_to_monotonic.tv_sec = -xtime.tv_sec; + + err = request_irq(na_timer0_irq, timer_interrupt, IRQ_FLG_LOCK, "timer", NULL); + if(err) + printk(KERN_ERR "%s() failed - errno = %d\n", __FUNCTION__, -err); + na_timer0->np_timerperiodl = (nasys_clock_freq/HZ)-1; + na_timer0->np_timerperiodh = ((nasys_clock_freq/HZ)-1) >> 16; + + /* interrupt enable + continuous + start */ + na_timer0->np_timercontrol = np_timercontrol_start_mask + + np_timercontrol_cont_mask + + np_timercontrol_ito_mask; +} + +/* + * This version of gettimeofday has near microsecond resolution. + */ +void do_gettimeofday(struct timeval *tv) +{ + unsigned long flags; + unsigned long seq; + unsigned long usec, sec; + + do { + seq = read_seqbegin_irqsave(&xtime_lock, flags); + usec = gettimeoffset(); + sec = xtime.tv_sec; + usec += (xtime.tv_nsec / 1000); + } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); + + while (usec >= 1000000) { + usec -= 1000000; + sec++; + } + + tv->tv_sec = sec; + tv->tv_usec = usec; +} +EXPORT_SYMBOL(do_gettimeofday); + +int do_settimeofday(struct timespec *tv) +{ + time_t wtm_sec, sec = tv->tv_sec; + long wtm_nsec, nsec = tv->tv_nsec; + + if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) + return -EINVAL; + + write_seqlock_irq(&xtime_lock); + /* + * This is revolting. We need to set "xtime" correctly. However, the + * value in this location is the value at the last tick. + * Discover what correction gettimeofday() would have + * made, and then undo it! + */ + nsec -= gettimeoffset() * NSEC_PER_USEC; + + wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); + wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); + + set_normalized_timespec(&xtime, sec, nsec); + set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); + + ntp_clear(); + + write_sequnlock_irq(&xtime_lock); + clock_was_set(); + + return 0; +} +EXPORT_SYMBOL(do_settimeofday); + +/* + * Scheduler clock - returns current time in nanosec units. + */ +unsigned long long sched_clock(void) +{ + return (unsigned long long)jiffies * (1000000000 / HZ); +} diff --git a/arch/nios2nommu/kernel/traps.c b/arch/nios2nommu/kernel/traps.c new file mode 100644 index 0000000..14b7e4c --- /dev/null +++ b/arch/nios2nommu/kernel/traps.c @@ -0,0 +1,178 @@ +/* + * arch/niosnommu/kernel/traps.c + * + * Copyright 2004 Microtronix Datacom Ltd. + * Copyright 2001 Vic Phillips + * Copyright 1995 David S. Miller (davem@caip.rutgers.edu) + * + * hacked from: + * + * arch/sparcnommu/kernel/traps.c + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include /* for jiffies */ +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +/* #define TRAP_DEBUG */ + +#if 0 +void dumpit(unsigned long l1, unsigned long l2) +{ + printk("0x%08x l1 0x%08x l2\n"); + while(1); +} + +struct trap_trace_entry { + unsigned long pc; + unsigned long type; +}; + +int trap_curbuf = 0; +struct trap_trace_entry trapbuf[1024]; + +void syscall_trace_entry(struct pt_regs *regs) +{ + printk("%s[%d]: ", current->comm, current->pid); + printk("scall<%d> (could be %d)\n", (int) regs->r3, + (int) regs->r4); +} + +void syscall_trace_exit(struct pt_regs *regs) +{ +} +#endif + +/* + * The architecture-independent backtrace generator + */ +void dump_stack(void) +{ + unsigned long stack; + + show_stack(current, &stack); +} + +EXPORT_SYMBOL(dump_stack); + +/* + * The show_stack is an external API which we do not use ourselves. + * The oops is printed in die_if_kernel. + */ + +int kstack_depth_to_print = 48; + +void show_stack(struct task_struct *task, unsigned long *stack) +{ + unsigned long *endstack, addr; + extern char _start, _etext; + int i; + + if (!stack) { + if (task) + stack = (unsigned long *)task->thread.ksp; + else + stack = (unsigned long *)&stack; + } + + addr = (unsigned long) stack; + endstack = (unsigned long *) PAGE_ALIGN(addr); + + printk(KERN_EMERG "Stack from %08lx:", (unsigned long)stack); + for (i = 0; i < kstack_depth_to_print; i++) { + if (stack + 1 > endstack) + break; + if (i % 8 == 0) + printk(KERN_EMERG "\n "); + printk(KERN_EMERG " %08lx", *stack++); + } + + printk(KERN_EMERG "\nCall Trace:"); + i = 0; + while (stack + 1 <= endstack) { + addr = *stack++; + /* + * If the address is either in the text segment of the + * kernel, or in the region which contains vmalloc'ed + * memory, it *may* be the address of a calling + * routine; if so, print it so that someone tracing + * down the cause of the crash will be able to figure + * out the call path that was taken. + */ + if (((addr >= (unsigned long) &_start) && + (addr <= (unsigned long) &_etext))) { + if (i % 4 == 0) + printk(KERN_EMERG "\n "); + printk(KERN_EMERG " [<%08lx>]", addr); + i++; + } + } + printk(KERN_EMERG "\n"); +} + +void die_if_kernel(char *str, struct pt_regs *pregs) +{ + unsigned long pc; + + pc = pregs->ra; + printk("0x%08lx\n trapped to die_if_kernel\n",pregs->ra); + show_regs(pregs); + if(pregs->status_extension & PS_S) + do_exit(SIGKILL); + do_exit(SIGSEGV); +} + +void do_hw_interrupt(unsigned long type, unsigned long psr, unsigned long pc) +{ + if(type < 0x10) { + printk("Unimplemented Nios2 TRAP, type = %02lx\n", type); + die_if_kernel("Whee... Hello Mr. Penguin", current->thread.kregs); + } +} + +#if 0 +void handle_watchpoint(struct pt_regs *regs, unsigned long pc, unsigned long psr) +{ +#ifdef TRAP_DEBUG + printk("Watchpoint detected at PC %08lx PSR %08lx\n", pc, psr); +#endif + if(psr & PSR_SUPERVISOR) + panic("Tell me what a watchpoint trap is, and I'll then deal " + "with such a beast..."); +} +#endif + +void trap_init(void) +{ +#ifdef DEBUG + printk("trap_init reached\n"); +#endif +} diff --git a/arch/nios2nommu/kernel/usb.c b/arch/nios2nommu/kernel/usb.c new file mode 100644 index 0000000..65655b6 --- /dev/null +++ b/arch/nios2nommu/kernel/usb.c @@ -0,0 +1,341 @@ +/* + * arch/nios2nommu/kernel/usb.c -- platform level USB initialization + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#undef DEBUG + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#if defined(CONFIG_USB_SL811_HCD) || defined (CONFIG_USB_SL811_HCD_MODULE) +#if defined(CONFIG_MICROTRONIX_STRATIX) || defined (CONFIG_MICROTRONIX_CYCLONE) + +#include +#define SL811_ADDR ((unsigned int)na_usb) +#define SL811_IRQ na_usb_irq + +static void sl811_port_power(struct device *dev, int is_on) +{ +} + +static void sl811_port_reset(struct device *dev) +{ + writeb(0xA, (SL811_ADDR+8)); + mdelay(10); + writeb(4, (SL811_ADDR+8)); +} + +static struct resource sl811hs_resources[] = { + { + .start = (SL811_ADDR), + .end = (SL811_ADDR + 3), + .flags = IORESOURCE_MEM, + }, + { + .start = (SL811_ADDR + 4), + .end = (SL811_ADDR + 7), + .flags = IORESOURCE_MEM, + }, + { + .start = SL811_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct sl811_platform_data sl811_data = { + .can_wakeup = 0, + .potpg = 0, + .power = 250, + .port_power = sl811_port_power, + .reset = sl811_port_reset, +}; + +static struct platform_device sl811hs_device = { + .name = "sl811-hcd", + .id = -1, + .dev = { + //.release = usb_release, + //.dma_mask = &ohci_dmamask, + .coherent_dma_mask = 0x0fffffff, + .platform_data = &sl811_data, + }, + .num_resources = ARRAY_SIZE(sl811hs_resources), + .resource = sl811hs_resources, +}; + + +static int __init mtx_kit_usb_init(void) +{ + int status; + + status = platform_device_register(&sl811hs_device); + if (status) { + pr_debug("can't register sl811hs device, %d\n", status); + return -1; + } + + writeb(4, (SL811_ADDR+8)); + return 0; +} + +subsys_initcall(mtx_kit_usb_init); +#endif /* (CONFIG_MICROTRONIX_STRATIX) || (CONFIG_MICROTRONIX_CYCLONE)*/ +#endif /*(CONFIG_USB_SL811_HCD) ||(CONFIG_USB_SL811_HCD_MODULE) */ + +#if defined(CONFIG_USB_ISP116X_HCD) || defined (CONFIG_USB_ISP116X_HCD_MODULE) + +#include + +#define ISP116X_HCD_ADDR ((unsigned int)na_usb) +#define ISP116X_HCD_IRQ na_usb_irq + +static void isp116x_delay(struct device *dev, int delay) +{ + ndelay(delay); +} + +static struct resource isp116x_hcd_resources[] = { + { + .start = (ISP116X_HCD_ADDR), + .end = (ISP116X_HCD_ADDR + 3), + .flags = IORESOURCE_MEM, + }, + { + .start = (ISP116X_HCD_ADDR + 4), + .end = (ISP116X_HCD_ADDR + 7), + .flags = IORESOURCE_MEM, + }, + { + .start = ISP116X_HCD_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct isp116x_platform_data isp116x_data = { + // Enable internal resistors on downstream ports + .sel15Kres = 1, + // On-chip overcurrent protection + .oc_enable = 1, + // INT output polarity + .int_act_high = 0, + // INT edge or level triggered + .int_edge_triggered = 0, + // Wakeup by devices on usb bus enabled + .remote_wakeup_enable = 0, + .delay = isp116x_delay, +}; + +static struct platform_device isp116x_hcd = { + .name = "isp116x-hcd", + .id = -1, + .dev = { + //.release = usb_release, + //.dma_mask = &ohci_dmamask, + .coherent_dma_mask = 0x0fffffff, + .platform_data = &isp116x_data, + }, + .num_resources = ARRAY_SIZE(isp116x_hcd_resources), + .resource = isp116x_hcd_resources, +}; + +static int __init usb_hcd_init(void) +{ + int status; + + status = platform_device_register(&isp116x_hcd); + if (status) { + pr_debug("can't register isp116x host controller, %d\n", status); + return -1; + } + + return 0; +} +subsys_initcall(usb_hcd_init); +#endif /*(CONFIG_USB_ISP116X_HCD) ||(CONFIG_USB_ISP116X_HCD_MODULE) */ + +#if defined(CONFIG_USB_ISP1161X) || defined(CONFIG_USB_ISP1161X_MODULE) +#include + +#define ISP116X_UDC_ADDR ((unsigned int)na_usb+8) +#define ISP116X_UDC_IRQ na_int2_usb_irq + +static struct resource isp116x_udc_resources[] = { + { + .start = (ISP116X_UDC_ADDR), + .end = (ISP116X_UDC_ADDR + 3), + .flags = IORESOURCE_MEM, + }, + { + .start = (ISP116X_UDC_ADDR + 4), + .end = (ISP116X_UDC_ADDR + 7), + .flags = IORESOURCE_MEM, + }, + { + .start = ISP116X_UDC_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; +static void isp116x_udc_delay() +{ + __asm__ __volatile__( + "1: \n\t" + " beq %0,zero,2f\n\t" + " addi %0, %0, -1\n\t" + " br 1b\n\t" + "2: \n\t" + : + : "r" (nasys_clock_freq_1000 * 180 / 2000000) + ); + +} +struct isp116x_dc_platform_data isp116x_udc_data = { + .ext_pullup_enable =0, + .no_lazy =1, + .eot_act_high =0, + .remote_wakeup_enable=1, + .power_off_enable =1, + .int_edge_triggered =0, + .int_act_high =0, + .clkout_freq =12, + .delay = isp116x_udc_delay +}; + +static struct platform_device isp116x_udc = { + .name = "isp1161a_udc", + .id = -1, + .dev = { + //.release = usb_release, + //.dma_mask = &ohci_dmamask, + .coherent_dma_mask = 0x0fffffff, + .platform_data = &isp116x_udc_data, + }, + .num_resources = ARRAY_SIZE(isp116x_udc_resources), + .resource = isp116x_udc_resources, +}; + +static int __init usb_udc_init(void) +{ + int status; + np_pio* pio; + + status = platform_device_register(&isp116x_udc); + if (status) { + pr_debug("can't register isp116x device controller, %d\n", status); + return -1; + } + + /* enable interrupts */ + pio = (np_pio*)na_int2_usb; + //outw(0, &pio->np_piodata); + //outw(0, &pio->np_pioedgecapture); + outw(1, &pio->np_piointerruptmask); + + return 0; +} +subsys_initcall(usb_udc_init); +#endif + +#if defined(na_ISP1362_avalonS) // for DE2 dev board, FIX ME otehrwise +#define na_usb na_ISP1362_avalonS +#define na_usb_irq na_ISP1362_avalonS_irq +#endif + +#if defined(na_ISP1362_avalon_slave_0) // for DE2 dev board, FIX ME otehrwise +#define na_usb na_ISP1362_avalon_slave_0 +#define na_usb_irq na_ISP1362_avalon_slave_0_irq +#endif + +#if defined(CONFIG_USB_ISP1362_HCD) && defined(na_usb) + +#include +#define ISP1362_HCD_ADDR ((unsigned int)na_usb) +#define ISP1362_HCD_IRQ na_usb_irq + +static struct resource isp1362_hcd_resources[] = { + { + .start = (ISP1362_HCD_ADDR), + .end = (ISP1362_HCD_ADDR + 3), + .flags = IORESOURCE_MEM, + }, + { + .start = (ISP1362_HCD_ADDR + 4), + .end = (ISP1362_HCD_ADDR + 7), + .flags = IORESOURCE_MEM, + }, + { + .start = ISP1362_HCD_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct isp1362_platform_data isp1362_data = { + // Enable internal resistors on downstream ports + .sel15Kres = 1, + // Clock cannot be stopped + .clknotstop = 0, + // On-chip overcurrent protection + .oc_enable = 0, + // INT output polarity + .int_act_high = 0, + // INT edge or level triggered + .int_edge_triggered = 0, + // WAKEUP pin connected + .remote_wakeup_connected = 0, + // Switch or not to switch (keep always powered) + .no_power_switching = 1, + // Ganged port power switching (0) or individual port power switching (1) + .power_switching_mode = 0, +}; + +static struct platform_device isp1362_hcd = { + .name = "isp1362-hcd", + .id = -1, + .dev = { + //.release = usb_release, + //.dma_mask = &ohci_dmamask, + .coherent_dma_mask = 0x0fffffff, + .platform_data = &isp1362_data, + }, + .num_resources = ARRAY_SIZE(isp1362_hcd_resources), + .resource = isp1362_hcd_resources, +}; + +static int __init usb_hcd_init(void) +{ + int status; + + status = platform_device_register(&isp1362_hcd); + if (status) { + pr_debug("can't register isp1362 host controller, %d\n", status); + return -1; + } + + return 0; +} +subsys_initcall(usb_hcd_init); +#endif + diff --git a/arch/nios2nommu/kernel/vmlinux.lds.S b/arch/nios2nommu/kernel/vmlinux.lds.S new file mode 100644 index 0000000..491901c --- /dev/null +++ b/arch/nios2nommu/kernel/vmlinux.lds.S @@ -0,0 +1,141 @@ +#include +#include + +OUTPUT_FORMAT("elf32-littlenios2", "elf32-littlenios2", "elf32-littlenios2") + +OUTPUT_ARCH(nios) +ENTRY(_start) /* Defined in head.S */ + +jiffies = jiffies_64; + +SECTIONS +{ + . = nasys_program_mem; + /* read-only */ + _stext = . ; + _text = .; /* Text and read-only data */ + .text : { + TEXT_TEXT + SCHED_TEXT + LOCK_TEXT + *(.fixup) + *(.gnu.warning) + } =0 + + . = ALIGN(4) ; + _etext = .; /* End of text section */ + + . = ALIGN(32); /* Exception table */ + __start___ex_table = .; + __ex_table : { *(__ex_table) } + __stop___ex_table = .; + + RODATA + + /* writeable */ + .data : { /* Data */ + /* + * This ALIGN is needed as a workaround for a bug a gcc bug upto 4.1 which + * limits the maximum alignment to at most 32kB and results in the following + * warning: + * + * CC arch/mips/kernel/init_task.o + * arch/mips/kernel/init_task.c:30: warning: alignment of ‘init_thread_union’ + * is greater than maximum object file alignment. Using 32768 + */ + . = ALIGN(4096); + *(.data.init_task) + + *(.data) + + CONSTRUCTORS + } + + .lit8 : { *(.lit8) } + .lit4 : { *(.lit4) } + /* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ + .sdata : { *(.sdata) } + + . = ALIGN(4096); + __nosave_begin = .; + .data_nosave : { *(.data.nosave) } + . = ALIGN(4096); + __nosave_end = .; + + . = ALIGN(32); + .data.cacheline_aligned : { *(.data.cacheline_aligned) } + + _edata = .; /* End of data section */ + + /* will be freed after init */ + . = ALIGN(4096); /* Init code and data */ + __init_begin = .; + .init.text : { + _sinittext = .; + *(.init.text) + _einittext = .; + } + .init.data : { *(.init.data) } + . = ALIGN(16); + __setup_start = .; + .init.setup : { *(.init.setup) } + __setup_end = .; + + __initcall_start = .; + .initcall.init : { + INITCALLS + } + __initcall_end = .; + + __con_initcall_start = .; + .con_initcall.init : { *(.con_initcall.init) } + __con_initcall_end = .; + SECURITY_INIT + /* .exit.text is discarded at runtime, not link time, to deal with + references from .rodata */ + .exit.text : { *(.exit.text) } + .exit.data : { *(.exit.data) } + . = ALIGN(4096); + __initramfs_start = .; + .init.ramfs : { *(.init.ramfs) } + __initramfs_end = .; + . = ALIGN(32); + __per_cpu_start = .; + .data.percpu : { *(.data.percpu) } + __per_cpu_end = .; + . = ALIGN(4096); + __init_end = .; + /* freed after init ends here */ + + __bss_start = .; /* BSS */ + .sbss : { + *(.sbss) + *(.scommon) + } + .bss : { + *(.bss) + *(COMMON) + } + __bss_stop = .; + + _end = . ; + + /* Sections to be discarded */ + /DISCARD/ : { + *(.exit.text) + *(.exit.data) + *(.exitcall.exit) + } + + + STABS_DEBUG + + DWARF_DEBUG + + /* These must appear regardless of . */ + .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } + .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } + .note : { *(.note) } +} diff --git a/arch/nios2nommu/lib/Makefile b/arch/nios2nommu/lib/Makefile new file mode 100644 index 0000000..1315c57 --- /dev/null +++ b/arch/nios2nommu/lib/Makefile @@ -0,0 +1,17 @@ +# +# Copyright (C) 2005 Microtronix Datacom Ltd +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU Library General Public License as published by the Free +# Software Foundation; either version 2 of the License, or (at your option) any +# later version. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more +# details. + +####CSRC := $(wildcard *.c) +####lib-y =$(patsubst %.c,%.o, $(CSRC)) +####wapos! +lib-y =checksum.o string.o memcpy.o diff --git a/arch/nios2nommu/lib/checksum.c b/arch/nios2nommu/lib/checksum.c new file mode 100644 index 0000000..475f1a3 --- /dev/null +++ b/arch/nios2nommu/lib/checksum.c @@ -0,0 +1,73 @@ +/*-------------------------------------------------------------------- + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#include +#include + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* + * computes the checksum of a memory block at buff, length len, + * and adds in "sum" (32-bit) + * + * returns a 32-bit number suitable for feeding into itself + * or csum_tcpudp_magic + * + * this function must be called with even lengths, except + * for the last fragment, which may be odd + * + * it's best to have buff aligned on a 32-bit boundary + */ + +unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum) +{ +#if 0 + __asm__ __volatile__ ...//;dgt2;tmp;not (yet) available... + ...//;dgt2;tmp;NiosI didn't offer either... +#else + unsigned int result = do_csum(buff, len); + + /* add in old sum, and carry.. */ + result += sum; + if (sum > result) + result += 1; + return result; +#endif +} + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +/* + * the same as csum_partial, but copies from fs:src while it + * checksums + * + * here even more important to align src and dst on a 32-bit (or even + * better 64-bit) boundary + */ + +unsigned int csum_partial_copy(const char *src, char *dst, int len, int sum) +{ + memcpy(dst, src, len); + return csum_partial(dst, len, sum); + +} diff --git a/arch/nios2nommu/lib/memcpy.c b/arch/nios2nommu/lib/memcpy.c new file mode 100644 index 0000000..6586b99 --- /dev/null +++ b/arch/nios2nommu/lib/memcpy.c @@ -0,0 +1,62 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/lib/memcpy.c + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jun/09/2004 dgt Split out separate source file from string.c + * + ---------------------------------------------------------------------*/ + +#include +#include +#include +#include + +#ifdef __HAVE_ARCH_MEMCPY + void * memcpy(void * d, const void * s, size_t count) + { + unsigned long dst, src; + dst = (unsigned long) d; + src = (unsigned long) s; + + if ((count < 8) || ((dst ^ src) & 3)) + goto restup; + + if (dst & 1) { + *(char*)dst++=*(char*)src++; + count--; + } + if (dst & 2) { + *(short*)dst=*(short*)src; + src += 2; + dst += 2; + count -= 2; + } + while (count > 3) { + *(long*)dst=*(long*)src; + src += 4; + dst += 4; + count -= 4; + } + + restup: + while (count--) + *(char*)dst++=*(char*)src++; + + return d; + } +#endif diff --git a/arch/nios2nommu/lib/string.c b/arch/nios2nommu/lib/string.c new file mode 100644 index 0000000..b87c195 --- /dev/null +++ b/arch/nios2nommu/lib/string.c @@ -0,0 +1,180 @@ +/*-------------------------------------------------------------------- + * + * arch/nios2nommu/lib/string.c + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * Jun/09/2004 dgt Split out memcpy into separate source file + * + ---------------------------------------------------------------------*/ + +#include +#include +#include +#include + +#ifdef __HAVE_ARCH_MEMSET +void * memset(void * s,int c,size_t count) +{ + + if (count > 8) { + int destptr, charcnt, dwordcnt, fill8reg, wrkrega; + __asm__ __volatile__ ( + // fill8 %3, %5 (c & 0xff)\n\t" + // + " slli %4, %5, 8\n\t" + " or %4, %4, %5\n\t" + " slli %3, %4, 16\n\t" + " or %3, %3, %4\n\t" + // + // Word-align %0 (s) if necessary + // + " andi %4, %0, 0x01\n\t" + " beq %4, zero, 1f\n\t" + " addi %1, %1, -1\n\t" + " stb %3, 0(%0)\n\t" + " addi %0, %0, 1\n\t" + "1: \n\t" + " mov %2, %1\n\t" + // + // Dword-align %0 (s) if necessary + // + " andi %4, %0, 0x02\n\t" + " beq %4, zero, 2f\n\t" + " addi %1, %1, -2\n\t" + " sth %3, 0(%0)\n\t" + " addi %0, %0, 2\n\t" + " mov %2, %1\n\t" + "2: \n\t" + // %1 and %2 are how many more bytes to set + // + " srli %2, %2, 2\n\t" + // + // %2 is how many dwords to set + // + "3: ;\n\t" + " stw %3, 0(%0)\n\t" + " addi %0, %0, 4\n\t" + " addi %2, %2, -1\n\t" + " bne %2, zero, 3b\n\t" + // + // store residual word and/or byte if necessary + // + " andi %4, %1, 0x02\n\t" + " beq %4, zero, 4f\n\t" + " sth %3, 0(%0)\n\t" + " addi %0, %0, 2\n\t" + "4: \n\t" + // store residual byte if necessary + // + " andi %4, %1, 0x01\n\t" + " beq %4, zero, 5f\n\t" + " stb %3, 0(%0)\n\t" + "5: \n\t" + + : "=r" (destptr), /* %0 Output */ + "=r" (charcnt), /* %1 Output */ + "=r" (dwordcnt), /* %2 Output */ + "=r" (fill8reg), /* %3 Output */ + "=r" (wrkrega) /* %4 Output */ + + : "r" (c & 0xff), /* %5 Input */ + "0" (s), /* %0 Input/Output */ + "1" (count) /* %1 Input/Output */ + + : "memory" /* clobbered */ + ); + } + else { + char* xs=(char*)s; + while (count--) + *xs++ = c; + } + return s; +} +#endif + +#ifdef __HAVE_ARCH_MEMMOVE +void * memmove(void * d, const void * s, size_t count) +{ + unsigned long dst, src; + + if (d < s) { + dst = (unsigned long) d; + src = (unsigned long) s; + + if ((count < 8) || ((dst ^ src) & 3)) + goto restup; + + if (dst & 1) { + *(char*)dst++=*(char*)src++; + count--; + } + if (dst & 2) { + *(short*)dst=*(short*)src; + src += 2; + dst += 2; + count -= 2; + } + while (count > 3) { + *(long*)dst=*(long*)src; + src += 4; + dst += 4; + count -= 4; + } + + restup: + while (count--) + *(char*)dst++=*(char*)src++; + } else { + dst = (unsigned long) d + count; + src = (unsigned long) s + count; + + if ((count < 8) || ((dst ^ src) & 3)) + goto restdown; + + if (dst & 1) { + src--; + dst--; + count--; + *(char*)dst=*(char*)src; + } + if (dst & 2) { + src -= 2; + dst -= 2; + count -= 2; + *(short*)dst=*(short*)src; + } + while (count > 3) { + src -= 4; + dst -= 4; + count -= 4; + *(long*)dst=*(long*)src; + } + + restdown: + while (count--) { + src--; + dst--; + *(char*)dst=*(char*)src; + } + } + + return d; + +} +#endif diff --git a/arch/nios2nommu/mm/Makefile b/arch/nios2nommu/mm/Makefile new file mode 100644 index 0000000..b007a11 --- /dev/null +++ b/arch/nios2nommu/mm/Makefile @@ -0,0 +1,12 @@ +# $Id: Makefile,v 1.1 2006/07/05 06:23:18 gerg Exp $ +# Makefile for the linux Sparc-specific parts of the memory manager. +# +# Note! Dependencies are done automagically by 'make dep', which also +# removes any old dependencies. DON'T put your own dependencies here +# unless it's something special (ie not a .c file). +# +# Note 2! The CFLAGS definition is now in the main makefile... + +obj-y := init.o ioremap.o extable.o memory.o +obj-y += dma-noncoherent.o + diff --git a/arch/nios2nommu/mm/dma-noncoherent.c b/arch/nios2nommu/mm/dma-noncoherent.c new file mode 100644 index 0000000..5649940 --- /dev/null +++ b/arch/nios2nommu/mm/dma-noncoherent.c @@ -0,0 +1,373 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2000 Ani Joshi + * Copyright (C) 2000, 2001 Ralf Baechle + * swiped from i386, and cloned for MIPS by Geert, polished by Ralf. + */ +#include +#include +#include +#include +#include + +#include +#include +#include + +#define UNCAC_ADDR(addr) ((void *)((unsigned long)(addr) | 0x80000000)) +#define CAC_ADDR(addr) ((void *)((unsigned long)(addr) & ~0x80000000)) + +/* + * Warning on the terminology - Linux calls an uncached area coherent; + * MIPS terminology calls memory areas with hardware maintained coherency + * coherent. + */ + +void *dma_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t * dma_handle, gfp_t gfp) +{ + void *ret; + /* ignore region specifiers */ + gfp &= ~(__GFP_DMA | __GFP_HIGHMEM); + + if (dev == NULL || (dev->coherent_dma_mask < 0xffffffff)) + gfp |= GFP_DMA; + ret = (void *) __get_free_pages(gfp, get_order(size)); + + if (ret != NULL) { + memset(ret, 0, size); + *dma_handle = virt_to_phys(ret); + } + + return ret; +} + +EXPORT_SYMBOL(dma_alloc_noncoherent); + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t * dma_handle, gfp_t gfp) +{ + void *ret; + + ret = dma_alloc_noncoherent(dev, size, dma_handle, gfp); + if (ret) { + dma_cache_wback_inv((unsigned long) ret, size); + ret = UNCAC_ADDR(ret); + } + + return ret; +} + +EXPORT_SYMBOL(dma_alloc_coherent); + +void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle) +{ + free_pages((unsigned long) vaddr, get_order(size)); +} + +EXPORT_SYMBOL(dma_free_noncoherent); + +void dma_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle) +{ + unsigned long addr = (unsigned long) vaddr; + + addr = (unsigned long) CAC_ADDR(addr); + free_pages(addr, get_order(size)); +} + +EXPORT_SYMBOL(dma_free_coherent); + +static inline void __dma_sync(unsigned long addr, size_t size, + enum dma_data_direction direction) +{ + switch (direction) { + case DMA_TO_DEVICE: + dma_cache_wback(addr, size); + break; + + case DMA_FROM_DEVICE: + dma_cache_inv(addr, size); + break; + + case DMA_BIDIRECTIONAL: + dma_cache_wback_inv(addr, size); + break; + + default: + BUG(); + } +} + +dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size, + enum dma_data_direction direction) +{ + unsigned long addr = (unsigned long) ptr; + + __dma_sync(addr, size, direction); + + return virt_to_phys(ptr); +} + +EXPORT_SYMBOL(dma_map_single); + +void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction direction) +{ + unsigned long addr; + addr = dma_addr + PAGE_OFFSET; + + //__dma_sync(addr, size, direction); +} + +EXPORT_SYMBOL(dma_unmap_single); + +int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction) +{ + int i; + + BUG_ON(direction == DMA_NONE); + + for (i = 0; i < nents; i++, sg++) { + unsigned long addr; + + addr = (unsigned long) page_address(sg->page); + if (addr) { + __dma_sync(addr + sg->offset, sg->length, direction); + sg->dma_address = (dma_addr_t)page_to_phys(sg->page) + + sg->offset; + } + } + + return nents; +} + +EXPORT_SYMBOL(dma_map_sg); + +dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, enum dma_data_direction direction) +{ + unsigned long addr; + + BUG_ON(direction == DMA_NONE); + + addr = (unsigned long) page_address(page) + offset; + dma_cache_wback_inv(addr, size); + + return page_to_phys(page) + offset; +} + +EXPORT_SYMBOL(dma_map_page); + +void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size, + enum dma_data_direction direction) +{ + BUG_ON(direction == DMA_NONE); + + if (direction != DMA_TO_DEVICE) { + unsigned long addr; + + addr = dma_address + PAGE_OFFSET; + dma_cache_wback_inv(addr, size); + } +} + +EXPORT_SYMBOL(dma_unmap_page); + +void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries, + enum dma_data_direction direction) +{ + unsigned long addr; + int i; + + BUG_ON(direction == DMA_NONE); + + if (direction == DMA_TO_DEVICE) + return; + + for (i = 0; i < nhwentries; i++, sg++) { + addr = (unsigned long) page_address(sg->page); + if (addr) + __dma_sync(addr + sg->offset, sg->length, direction); + } +} + +EXPORT_SYMBOL(dma_unmap_sg); + +void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction direction) +{ + unsigned long addr; + + BUG_ON(direction == DMA_NONE); + + addr = dma_handle + PAGE_OFFSET; + __dma_sync(addr, size, direction); +} + +EXPORT_SYMBOL(dma_sync_single_for_cpu); + +void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction direction) +{ + unsigned long addr; + + BUG_ON(direction == DMA_NONE); + + addr = dma_handle + PAGE_OFFSET; + __dma_sync(addr, size, direction); +} + +EXPORT_SYMBOL(dma_sync_single_for_device); + +void dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle, + unsigned long offset, size_t size, enum dma_data_direction direction) +{ + unsigned long addr; + + BUG_ON(direction == DMA_NONE); + + addr = dma_handle + offset + PAGE_OFFSET; + __dma_sync(addr, size, direction); +} + +EXPORT_SYMBOL(dma_sync_single_range_for_cpu); + +void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle, + unsigned long offset, size_t size, enum dma_data_direction direction) +{ + unsigned long addr; + + BUG_ON(direction == DMA_NONE); + + addr = dma_handle + offset + PAGE_OFFSET; + __dma_sync(addr, size, direction); +} + +EXPORT_SYMBOL(dma_sync_single_range_for_device); + +void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + int i; + + BUG_ON(direction == DMA_NONE); + + /* Make sure that gcc doesn't leave the empty loop body. */ + for (i = 0; i < nelems; i++, sg++) + __dma_sync((unsigned long)page_address(sg->page), + sg->length, direction); +} + +EXPORT_SYMBOL(dma_sync_sg_for_cpu); + +void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, + enum dma_data_direction direction) +{ + int i; + + BUG_ON(direction == DMA_NONE); + + /* Make sure that gcc doesn't leave the empty loop body. */ + for (i = 0; i < nelems; i++, sg++) + __dma_sync((unsigned long)page_address(sg->page), + sg->length, direction); +} + +EXPORT_SYMBOL(dma_sync_sg_for_device); + +int dma_mapping_error(dma_addr_t dma_addr) +{ + return 0; +} + +EXPORT_SYMBOL(dma_mapping_error); + +int dma_supported(struct device *dev, u64 mask) +{ + /* + * we fall back to GFP_DMA when the mask isn't all 1s, + * so we can't guarantee allocations that must be + * within a tighter range than GFP_DMA.. + */ + if (mask < 0x00ffffff) + return 0; + + return 1; +} + +EXPORT_SYMBOL(dma_supported); + +int dma_is_consistent(dma_addr_t dma_addr) +{ + return 1; +} + +EXPORT_SYMBOL(dma_is_consistent); + +void dma_cache_sync(void *vaddr, size_t size, enum dma_data_direction direction) +{ + if (direction == DMA_NONE) + return; + + dma_cache_wback_inv((unsigned long)vaddr, size); +} + +EXPORT_SYMBOL(dma_cache_sync); + +/* The DAC routines are a PCIism.. */ + +#ifdef CONFIG_PCI + +#include + +dma64_addr_t pci_dac_page_to_dma(struct pci_dev *pdev, + struct page *page, unsigned long offset, int direction) +{ + return (dma64_addr_t)page_to_phys(page) + offset; +} + +EXPORT_SYMBOL(pci_dac_page_to_dma); + +struct page *pci_dac_dma_to_page(struct pci_dev *pdev, + dma64_addr_t dma_addr) +{ + return mem_map + (dma_addr >> PAGE_SHIFT); +} + +EXPORT_SYMBOL(pci_dac_dma_to_page); + +unsigned long pci_dac_dma_to_offset(struct pci_dev *pdev, + dma64_addr_t dma_addr) +{ + return dma_addr & ~PAGE_MASK; +} + +EXPORT_SYMBOL(pci_dac_dma_to_offset); + +void pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, + dma64_addr_t dma_addr, size_t len, int direction) +{ + BUG_ON(direction == PCI_DMA_NONE); + + dma_cache_wback_inv(dma_addr + PAGE_OFFSET, len); +} + +EXPORT_SYMBOL(pci_dac_dma_sync_single_for_cpu); + +void pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, + dma64_addr_t dma_addr, size_t len, int direction) +{ + BUG_ON(direction == PCI_DMA_NONE); + + dma_cache_wback_inv(dma_addr + PAGE_OFFSET, len); +} + +EXPORT_SYMBOL(pci_dac_dma_sync_single_for_device); + +#endif /* CONFIG_PCI */ diff --git a/arch/nios2nommu/mm/extable.c b/arch/nios2nommu/mm/extable.c new file mode 100644 index 0000000..e23778f --- /dev/null +++ b/arch/nios2nommu/mm/extable.c @@ -0,0 +1,29 @@ +/* + * linux/arch/niosnommu/mm/extable.c + */ + +#include +#include +#include + +/* Simple binary search */ +const struct exception_table_entry * +search_extable(const struct exception_table_entry *first, + const struct exception_table_entry *last, + unsigned long value) +{ + while (first <= last) { + const struct exception_table_entry *mid; + long diff; + + mid = (last - first) / 2 + first; + diff = mid->insn - value; + if (diff == 0) + return mid; + else if (diff < 0) + first = mid+1; + else + last = mid-1; + } + return NULL; +} diff --git a/arch/nios2nommu/mm/init.c b/arch/nios2nommu/mm/init.c new file mode 100644 index 0000000..21fe61b --- /dev/null +++ b/arch/nios2nommu/mm/init.c @@ -0,0 +1,231 @@ +/* + * linux/arch/nios2nommu/mm/init.c + * + * Copyright (C) 1998 D. Jeff Dionne , + * Kenneth Albanowski , + * Copyright (C) 2000 Lineo, Inc. (www.lineo.com) + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * Based on: + * + * linux/arch/m68k/mm/init.c + * + * Copyright (C) 1995 Hamish Macdonald + * + * JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com) + * DEC/2000 -- linux 2.4 support + * Jan/20/2004 dgt NiosII + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +//;dgt2;#include +//;dgt2;#include + +#undef DEBUG + +extern void die_if_kernel(char *,struct pt_regs *,long); +extern void free_initmem(void); + +/* + * BAD_PAGE is the page that is used for page faults when linux + * is out-of-memory. Older versions of linux just did a + * do_exit(), but using this instead means there is less risk + * for a process dying in kernel mode, possibly leaving a inode + * unused etc.. + * + * BAD_PAGETABLE is the accompanying page-table: it is initialized + * to point to BAD_PAGE entries. + * + * ZERO_PAGE is a special page that is used for zero-initialized + * data and COW. + */ +static unsigned long empty_bad_page_table; + +static unsigned long empty_bad_page; + +unsigned long empty_zero_page; + +extern unsigned long rom_length; + +void show_mem(void) +{ + unsigned long i; + int free = 0, total = 0, reserved = 0, shared = 0; + int cached = 0; + + printk(KERN_INFO "\nMem-info:\n"); + show_free_areas(); + i = max_mapnr; + while (i-- > 0) { + total++; + if (PageReserved(mem_map+i)) + reserved++; + else if (PageSwapCache(mem_map+i)) + cached++; + else if (!page_count(mem_map+i)) + free++; + else + shared += page_count(mem_map+i) - 1; + } + printk(KERN_INFO "%d pages of RAM\n",total); + printk(KERN_INFO "%d free pages\n",free); + printk(KERN_INFO "%d reserved pages\n",reserved); + printk(KERN_INFO "%d pages shared\n",shared); + printk(KERN_INFO "%d pages swap cached\n",cached); +} + +extern unsigned long memory_start; +extern unsigned long memory_end; + +/* + * paging_init() continues the virtual memory environment setup which + * was begun by the code in arch/head.S. + * The parameters are pointers to where to stick the starting and ending + * addresses of available kernel virtual memory. + */ +void __init paging_init(void) +{ + /* + * Make sure start_mem is page aligned, otherwise bootmem and + * page_alloc get different views of the world. + */ +#ifdef DEBUG + unsigned long start_mem = PAGE_ALIGN(memory_start); +#endif + unsigned long end_mem = memory_end & PAGE_MASK; + +#ifdef DEBUG + printk (KERN_DEBUG "start_mem is %#lx\nvirtual_end is %#lx\n", + start_mem, end_mem); +#endif + + /* + * Initialize the bad page table and bad page to point + * to a couple of allocated pages. + */ + empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE); + memset((void *)empty_zero_page, 0, PAGE_SIZE); + + /* + * Set up SFC/DFC registers (user data space). + */ + set_fs (USER_DS); + +#ifdef DEBUG + printk (KERN_DEBUG "before free_area_init\n"); + + printk (KERN_DEBUG "free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n", + start_mem, end_mem); +#endif + + { + unsigned long zones_size[MAX_NR_ZONES] = {0, }; + + zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT; + zones_size[ZONE_NORMAL] = 0; +#ifdef CONFIG_HIGHMEM + zones_size[ZONE_HIGHMEM] = 0; +#endif + free_area_init(zones_size); + } +} + +void __init mem_init(void) +{ + int codek = 0, datak = 0, initk = 0; + unsigned long tmp; + extern char _etext, _stext, __init_begin, __init_end, _end; + unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ + unsigned long end_mem = memory_end; /* DAVIDM - this must not include kernel stack at top */ + +#ifdef DEBUG + printk(KERN_DEBUG "Mem_init: start=%lx, end=%lx\n", start_mem, end_mem); +#endif + + end_mem &= PAGE_MASK; + high_memory = (void *) end_mem; + + start_mem = PAGE_ALIGN(start_mem); + max_mapnr = num_physpages = MAP_NR(high_memory); + + /* this will put all memory onto the freelists */ + totalram_pages = free_all_bootmem(); + + codek = (&_etext - &_stext) >> 10; + datak = (&_end - &_etext) >> 10; + initk = (&__init_begin - &__init_end) >> 10; + + tmp = nr_free_pages() << PAGE_SHIFT; + printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n", + tmp >> 10, + (&_end - &_stext) >> 10, + (rom_length > 0) ? ((rom_length >> 10) - codek) : 0, + rom_length >> 10, + codek, + datak + ); +} + + +#ifdef CONFIG_BLK_DEV_INITRD +void __init free_initrd_mem(unsigned long start, unsigned long end) +{ + int pages = 0; + for (; start < end; start += PAGE_SIZE) { + ClearPageReserved(virt_to_page(start)); + init_page_count(virt_to_page(start)); + free_page(start); + totalram_pages++; + pages++; + } + printk (KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages); +} +#endif + +void free_initmem(void) +{ +#ifdef CONFIG_RAMKERNEL + unsigned long addr; + extern char __init_begin, __init_end; + /* + * The following code should be cool even if these sections + * are not page aligned. + */ + addr = PAGE_ALIGN((unsigned long)(&__init_begin)); + /* next to check that the page we free is not a partial page */ + for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); + totalram_pages++; + } + printk(KERN_NOTICE "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", + (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, + (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), + (int)(addr - PAGE_SIZE)); +#endif +} + diff --git a/arch/nios2nommu/mm/ioremap.c b/arch/nios2nommu/mm/ioremap.c new file mode 100644 index 0000000..1c8b172 --- /dev/null +++ b/arch/nios2nommu/mm/ioremap.c @@ -0,0 +1,65 @@ +/* linux/arch/nios2nommu/mm/ioremap.c, based on: + * + * linux/arch/m68knommu/mm/kmap.c + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * Copyright (C) 2000 Lineo, + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +/* + * Map some physical address range into the kernel address space. + */ + +void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag) +{ + return (void *)physaddr; +} + +/* + * Unmap a ioremap()ed region again + */ +void iounmap(void *addr) +{ +} + +/* + * __iounmap unmaps nearly everything, so be careful + * it doesn't free currently pointer/page tables anymore but it + * wans't used anyway and might be added later. + */ +void __iounmap(void *addr, unsigned long size) +{ +} + diff --git a/arch/nios2nommu/mm/memory.c b/arch/nios2nommu/mm/memory.c new file mode 100644 index 0000000..76d60d9 --- /dev/null +++ b/arch/nios2nommu/mm/memory.c @@ -0,0 +1,212 @@ +/* + * linux/arch/nio2nommu/mm/memory.c + * + * Copyright (C) 1995 Hamish Macdonald + * Copyright (C) 1998 Kenneth Albanowski , + * Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com) + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * Based on: + * + * linux/arch/m68k/mm/memory.c + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +/* + * cache_clear() semantics: Clear any cache entries for the area in question, + * without writing back dirty entries first. This is useful if the data will + * be overwritten anyway, e.g. by DMA to memory. The range is defined by a + * _physical_ address. + */ + +void cache_clear (unsigned long paddr, int len) +{ +} + + +/* + * Define cache invalidate functions. The instruction and data cache + * will need to be flushed. Write back the dirty data cache and invalidate + * the instruction cache for the range. + * + */ + +static __inline__ void cache_invalidate_inst(unsigned long paddr, int len) +{ + unsigned long sset, eset; + + sset = (paddr & (nasys_icache_size - 1)) & (~(nasys_icache_line_size - 1)); + eset = (((paddr & (nasys_icache_size - 1)) + len) & (~(nasys_icache_line_size - 1))) + nasys_icache_line_size; + + __asm__ __volatile__ ( + "1:\n\t" + "flushi %0\n\t" + "add %0,%0,%2\n\t" + "blt %0,%1,1b\n\t" + "flushp\n\t" + : : "r" (sset), "r" (eset), "r" (nasys_icache_line_size)); + +} + +static __inline__ void cache_invalidate_data(unsigned long paddr, int len) +{ + unsigned long sset, eset; + + sset = (paddr & (nasys_dcache_size - 1)) & (~(nasys_dcache_line_size - 1)); + eset = (((paddr & (nasys_dcache_size - 1)) + len) & (~(nasys_dcache_line_size - 1))) + nasys_dcache_line_size; + + __asm__ __volatile__ ( + "1:\n\t" + "flushd 0(%0)\n\t" + "add %0,%0,%2\n\t" + "blt %0,%1,1b\n\t" + : : "r" (sset),"r" (eset), "r" (nasys_dcache_line_size)); + +} + +static __inline__ void cache_invalidate_lines(unsigned long paddr, int len) +{ + unsigned long sset, eset; + + sset = (paddr & (nasys_dcache_size - 1)) & (~(nasys_dcache_line_size - 1)); + eset = (((paddr & (nasys_dcache_size - 1)) + len) & (~(nasys_dcache_line_size - 1))) + nasys_dcache_line_size; + + __asm__ __volatile__ ( + "1:\n\t" + "flushd 0(%0)\n\t" + "add %0,%0,%2\n\t" + "blt %0,%1,1b\n\t" + : : "r" (sset),"r" (eset), "r" (nasys_dcache_line_size)); + + sset = (paddr & (nasys_icache_size - 1)) & (~(nasys_icache_line_size - 1)); + eset = (((paddr & (nasys_icache_size - 1)) + len) & (~(nasys_icache_line_size - 1))) + nasys_icache_line_size; + + __asm__ __volatile__ ( + "1:\n\t" + "flushi %0\n\t" + "add %0,%0,%2\n\t" + "blt %0,%1,1b\n\t" + "flushp\n\t" + : : "r" (sset), "r" (eset), "r" (nasys_icache_line_size)); + +} + +/* + * cache_push() semantics: Write back any dirty cache data in the given area, + * and invalidate the range in the instruction cache. It needs not (but may) + * invalidate those entries also in the data cache. The range is defined by a + * _physical_ address. + */ + +void cache_push (unsigned long paddr, int len) +{ + cache_invalidate_lines(paddr, len); +} + + +/* + * cache_push_v() semantics: Write back any dirty cache data in the given + * area, and invalidate those entries at least in the instruction cache. This + * is intended to be used after data has been written that can be executed as + * code later. The range is defined by a _user_mode_ _virtual_ address. + */ + +void cache_push_v (unsigned long vaddr, int len) +{ + cache_invalidate_lines(vaddr, len); +} + +/* + * cache_push_all() semantics: Invalidate instruction cache and write back + * dirty data cache & invalidate. + */ +void cache_push_all (void) +{ + __asm__ __volatile__ ( + "1:\n\t" + "flushd 0(%0)\n\t" + "sub %0,%0,%1\n\t" + "bgt %0,r0,1b\n\t" + : : "r" (nasys_dcache_size), "r" (nasys_dcache_line_size)); + + __asm__ __volatile__ ( + "1:\n\t" + "flushi %0\n\t" + "sub %0,%0,%1\n\t" + "bgt %0,r0,1b\n\t" + "flushp\n\t" + : : "r" (nasys_icache_size), "r" (nasys_icache_line_size)); + +} + +/* + * dcache_push() semantics: Write back and dirty data cache and invalidate + * the range. + */ +void dcache_push (unsigned long vaddr, int len) +{ + cache_invalidate_data(vaddr, len); +} + +/* + * icache_push() semantics: Invalidate instruction cache in the range. + */ +void icache_push (unsigned long vaddr, int len) +{ + cache_invalidate_inst(vaddr, len); +} + +/* Map some physical address range into the kernel address space. The + * code is copied and adapted from map_chunk(). + */ + +unsigned long kernel_map(unsigned long paddr, unsigned long size, + int nocacheflag, unsigned long *memavailp ) +{ + return paddr; +} + + +int is_in_rom(unsigned long addr) +{ + /* Default case, not in ROM */ + return(0); +} + +int __handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, + unsigned long address, int write_access) +{ + BUG(); + return VM_FAULT_OOM; +} diff --git a/arch/nios2nommu/scripts/PTF/PTFParser.pm b/arch/nios2nommu/scripts/PTF/PTFParser.pm new file mode 100644 index 0000000..c243c7b --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/PTFParser.pm @@ -0,0 +1,873 @@ +#################################################################### +# +# This file was generated using Parse::Yapp version 1.05. +# +# Don't edit this file, use source file instead. +# +# ANY CHANGE MADE HERE WILL BE LOST ! +# +#################################################################### +package PTFParser; +use vars qw ( @ISA ); +use strict; + +@ISA= qw ( Parse::Yapp::Driver ); +#Included Parse/Yapp/Driver.pm file---------------------------------------- +{ +# +# Module Parse::Yapp::Driver +# +# This module is part of the Parse::Yapp package available on your +# nearest CPAN +# +# Any use of this module in a standalone parser make the included +# text under the same copyright as the Parse::Yapp module itself. +# +# This notice should remain unchanged. +# +# (c) Copyright 1998-2001 Francois Desarmenien, all rights reserved. +# (see the pod text in Parse::Yapp module for use and distribution rights) +# + +package Parse::Yapp::Driver; + +require 5.004; + +use strict; + +use vars qw ( $VERSION $COMPATIBLE $FILENAME ); + +$VERSION = '1.05'; +$COMPATIBLE = '0.07'; +$FILENAME=__FILE__; + +use Carp; + +#Known parameters, all starting with YY (leading YY will be discarded) +my(%params)=(YYLEX => 'CODE', 'YYERROR' => 'CODE', YYVERSION => '', + YYRULES => 'ARRAY', YYSTATES => 'ARRAY', YYDEBUG => ''); +#Mandatory parameters +my(@params)=('LEX','RULES','STATES'); + +sub new { + my($class)=shift; + my($errst,$nberr,$token,$value,$check,$dotpos); + my($self)={ ERROR => \&_Error, + ERRST => \$errst, + NBERR => \$nberr, + TOKEN => \$token, + VALUE => \$value, + DOTPOS => \$dotpos, + STACK => [], + DEBUG => 0, + CHECK => \$check }; + + _CheckParams( [], \%params, \@_, $self ); + + exists($$self{VERSION}) + and $$self{VERSION} < $COMPATIBLE + and croak "Yapp driver version $VERSION ". + "incompatible with version $$self{VERSION}:\n". + "Please recompile parser module."; + + ref($class) + and $class=ref($class); + + bless($self,$class); +} + +sub YYParse { + my($self)=shift; + my($retval); + + _CheckParams( \@params, \%params, \@_, $self ); + + if($$self{DEBUG}) { + _DBLoad(); + $retval = eval '$self->_DBParse()';#Do not create stab entry on compile + $@ and die $@; + } + else { + $retval = $self->_Parse(); + } + $retval +} + +sub YYData { + my($self)=shift; + + exists($$self{USER}) + or $$self{USER}={}; + + $$self{USER}; + +} + +sub YYErrok { + my($self)=shift; + + ${$$self{ERRST}}=0; + undef; +} + +sub YYNberr { + my($self)=shift; + + ${$$self{NBERR}}; +} + +sub YYRecovering { + my($self)=shift; + + ${$$self{ERRST}} != 0; +} + +sub YYAbort { + my($self)=shift; + + ${$$self{CHECK}}='ABORT'; + undef; +} + +sub YYAccept { + my($self)=shift; + + ${$$self{CHECK}}='ACCEPT'; + undef; +} + +sub YYError { + my($self)=shift; + + ${$$self{CHECK}}='ERROR'; + undef; +} + +sub YYSemval { + my($self)=shift; + my($index)= $_[0] - ${$$self{DOTPOS}} - 1; + + $index < 0 + and -$index <= @{$$self{STACK}} + and return $$self{STACK}[$index][1]; + + undef; #Invalid index +} + +sub YYCurtok { + my($self)=shift; + + @_ + and ${$$self{TOKEN}}=$_[0]; + ${$$self{TOKEN}}; +} + +sub YYCurval { + my($self)=shift; + + @_ + and ${$$self{VALUE}}=$_[0]; + ${$$self{VALUE}}; +} + +sub YYExpect { + my($self)=shift; + + keys %{$self->{STATES}[$self->{STACK}[-1][0]]{ACTIONS}} +} + +sub YYLexer { + my($self)=shift; + + $$self{LEX}; +} + + +################# +# Private stuff # +################# + + +sub _CheckParams { + my($mandatory,$checklist,$inarray,$outhash)=@_; + my($prm,$value); + my($prmlst)={}; + + while(($prm,$value)=splice(@$inarray,0,2)) { + $prm=uc($prm); + exists($$checklist{$prm}) + or croak("Unknow parameter '$prm'"); + ref($value) eq $$checklist{$prm} + or croak("Invalid value for parameter '$prm'"); + $prm=unpack('@2A*',$prm); + $$outhash{$prm}=$value; + } + for (@$mandatory) { + exists($$outhash{$_}) + or croak("Missing mandatory parameter '".lc($_)."'"); + } +} + +sub _Error { + print "Parse error.\n"; +} + +sub _DBLoad { + { + no strict 'refs'; + + exists(${__PACKAGE__.'::'}{_DBParse})#Already loaded ? + and return; + } + my($fname)=__FILE__; + my(@drv); + open(DRV,"<$fname") or die "Report this as a BUG: Cannot open $fname"; + while() { + /^\s*sub\s+_Parse\s*{\s*$/ .. /^\s*}\s*#\s*_Parse\s*$/ + and do { + s/^#DBG>//; + push(@drv,$_); + } + } + close(DRV); + + $drv[0]=~s/_P/_DBP/; + eval join('',@drv); +} + +#Note that for loading debugging version of the driver, +#this file will be parsed from 'sub _Parse' up to '}#_Parse' inclusive. +#So, DO NOT remove comment at end of sub !!! +sub _Parse { + my($self)=shift; + + my($rules,$states,$lex,$error) + = @$self{ 'RULES', 'STATES', 'LEX', 'ERROR' }; + my($errstatus,$nberror,$token,$value,$stack,$check,$dotpos) + = @$self{ 'ERRST', 'NBERR', 'TOKEN', 'VALUE', 'STACK', 'CHECK', 'DOTPOS' }; + +#DBG> my($debug)=$$self{DEBUG}; +#DBG> my($dbgerror)=0; + +#DBG> my($ShowCurToken) = sub { +#DBG> my($tok)='>'; +#DBG> for (split('',$$token)) { +#DBG> $tok.= (ord($_) < 32 or ord($_) > 126) +#DBG> ? sprintf('<%02X>',ord($_)) +#DBG> : $_; +#DBG> } +#DBG> $tok.='<'; +#DBG> }; + + $$errstatus=0; + $$nberror=0; + ($$token,$$value)=(undef,undef); + @$stack=( [ 0, undef ] ); + $$check=''; + + while(1) { + my($actions,$act,$stateno); + + $stateno=$$stack[-1][0]; + $actions=$$states[$stateno]; + +#DBG> print STDERR ('-' x 40),"\n"; +#DBG> $debug & 0x2 +#DBG> and print STDERR "In state $stateno:\n"; +#DBG> $debug & 0x08 +#DBG> and print STDERR "Stack:[". +#DBG> join(',',map { $$_[0] } @$stack). +#DBG> "]\n"; + + + if (exists($$actions{ACTIONS})) { + + defined($$token) + or do { + ($$token,$$value)=&$lex($self); +#DBG> $debug & 0x01 +#DBG> and print STDERR "Need token. Got ".&$ShowCurToken."\n"; + }; + + $act= exists($$actions{ACTIONS}{$$token}) + ? $$actions{ACTIONS}{$$token} + : exists($$actions{DEFAULT}) + ? $$actions{DEFAULT} + : undef; + } + else { + $act=$$actions{DEFAULT}; +#DBG> $debug & 0x01 +#DBG> and print STDERR "Don't need token.\n"; + } + + defined($act) + and do { + + $act > 0 + and do { #shift + +#DBG> $debug & 0x04 +#DBG> and print STDERR "Shift and go to state $act.\n"; + + $$errstatus + and do { + --$$errstatus; + +#DBG> $debug & 0x10 +#DBG> and $dbgerror +#DBG> and $$errstatus == 0 +#DBG> and do { +#DBG> print STDERR "**End of Error recovery.\n"; +#DBG> $dbgerror=0; +#DBG> }; + }; + + + push(@$stack,[ $act, $$value ]); + + $$token ne '' #Don't eat the eof + and $$token=$$value=undef; + next; + }; + + #reduce + my($lhs,$len,$code,@sempar,$semval); + ($lhs,$len,$code)=@{$$rules[-$act]}; + +#DBG> $debug & 0x04 +#DBG> and $act +#DBG> and print STDERR "Reduce using rule ".-$act." ($lhs,$len): "; + + $act + or $self->YYAccept(); + + $$dotpos=$len; + + unpack('A1',$lhs) eq '@' #In line rule + and do { + $lhs =~ /^\@[0-9]+\-([0-9]+)$/ + or die "In line rule name '$lhs' ill formed: ". + "report it as a BUG.\n"; + $$dotpos = $1; + }; + + @sempar = $$dotpos + ? map { $$_[1] } @$stack[ -$$dotpos .. -1 ] + : (); + + $semval = $code ? &$code( $self, @sempar ) + : @sempar ? $sempar[0] : undef; + + splice(@$stack,-$len,$len); + + $$check eq 'ACCEPT' + and do { + +#DBG> $debug & 0x04 +#DBG> and print STDERR "Accept.\n"; + + return($semval); + }; + + $$check eq 'ABORT' + and do { + +#DBG> $debug & 0x04 +#DBG> and print STDERR "Abort.\n"; + + return(undef); + + }; + +#DBG> $debug & 0x04 +#DBG> and print STDERR "Back to state $$stack[-1][0], then "; + + $$check eq 'ERROR' + or do { +#DBG> $debug & 0x04 +#DBG> and print STDERR +#DBG> "go to state $$states[$$stack[-1][0]]{GOTOS}{$lhs}.\n"; + +#DBG> $debug & 0x10 +#DBG> and $dbgerror +#DBG> and $$errstatus == 0 +#DBG> and do { +#DBG> print STDERR "**End of Error recovery.\n"; +#DBG> $dbgerror=0; +#DBG> }; + + push(@$stack, + [ $$states[$$stack[-1][0]]{GOTOS}{$lhs}, $semval ]); + $$check=''; + next; + }; + +#DBG> $debug & 0x04 +#DBG> and print STDERR "Forced Error recovery.\n"; + + $$check=''; + + }; + + #Error + $$errstatus + or do { + + $$errstatus = 1; + &$error($self); + $$errstatus # if 0, then YYErrok has been called + or next; # so continue parsing + +#DBG> $debug & 0x10 +#DBG> and do { +#DBG> print STDERR "**Entering Error recovery.\n"; +#DBG> ++$dbgerror; +#DBG> }; + + ++$$nberror; + + }; + + $$errstatus == 3 #The next token is not valid: discard it + and do { + $$token eq '' # End of input: no hope + and do { +#DBG> $debug & 0x10 +#DBG> and print STDERR "**At eof: aborting.\n"; + return(undef); + }; + +#DBG> $debug & 0x10 +#DBG> and print STDERR "**Dicard invalid token ".&$ShowCurToken.".\n"; + + $$token=$$value=undef; + }; + + $$errstatus=3; + + while( @$stack + and ( not exists($$states[$$stack[-1][0]]{ACTIONS}) + or not exists($$states[$$stack[-1][0]]{ACTIONS}{error}) + or $$states[$$stack[-1][0]]{ACTIONS}{error} <= 0)) { + +#DBG> $debug & 0x10 +#DBG> and print STDERR "**Pop state $$stack[-1][0].\n"; + + pop(@$stack); + } + + @$stack + or do { + +#DBG> $debug & 0x10 +#DBG> and print STDERR "**No state left on stack: aborting.\n"; + + return(undef); + }; + + #shift the error token + +#DBG> $debug & 0x10 +#DBG> and print STDERR "**Shift \$error token and go to state ". +#DBG> $$states[$$stack[-1][0]]{ACTIONS}{error}. +#DBG> ".\n"; + + push(@$stack, [ $$states[$$stack[-1][0]]{ACTIONS}{error}, undef ]); + + } + + #never reached + croak("Error in driver logic. Please, report it as a BUG"); + +}#_Parse +#DO NOT remove comment + +1; + +} +#End of include-------------------------------------------------- + + +#line 1 "PTFParser.yp" +# +# Altera PTF file parser +# +# Copyright (c) 2004 Microtronix Datacom Ltd. +# + +package PTFParser; + +use PTF::PTFSection; + +#global variables should go here. + +#my $line = 0; # for error messages +#my @sectionStack = (); # used to keep track of ptf sections +#my $root; + +my $fh; + +sub new { + my($class)=shift; + ref($class) + and $class=ref($class); + + my($self)=$class->SUPER::new( yyversion => '1.05', + yystates => +[ + {#State 0 + ACTIONS => { + 'IDENTIFIER' => 1 + }, + GOTOS => { + 'section' => 2, + 'section_title' => 3 + } + }, + {#State 1 + ACTIONS => { + 'IDENTIFIER' => 4, + 'STRING_LITERAL' => 6, + 'NUMBER' => 7 + }, + DEFAULT => -3, + GOTOS => { + 'section_name' => 5 + } + }, + {#State 2 + ACTIONS => { + '' => 8 + } + }, + {#State 3 + ACTIONS => { + "{" => 9 + } + }, + {#State 4 + DEFAULT => -4 + }, + {#State 5 + DEFAULT => -2 + }, + {#State 6 + DEFAULT => -6 + }, + {#State 7 + DEFAULT => -5 + }, + {#State 8 + DEFAULT => 0 + }, + {#State 9 + ACTIONS => { + 'IDENTIFIER' => 11, + 'HIERARCHICAL_NAME' => 13 + }, + DEFAULT => -7, + GOTOS => { + 'assignment_name' => 10, + 'assignment' => 12, + 'section_element' => 14, + 'section' => 15, + 'section_title' => 3 + } + }, + {#State 10 + ACTIONS => { + "=" => 16 + } + }, + {#State 11 + ACTIONS => { + 'IDENTIFIER' => 4, + 'STRING_LITERAL' => 6, + 'NUMBER' => 7, + "=" => -11 + }, + DEFAULT => -3, + GOTOS => { + 'section_name' => 5 + } + }, + {#State 12 + ACTIONS => { + 'IDENTIFIER' => 11, + 'HIERARCHICAL_NAME' => 13 + }, + DEFAULT => -7, + GOTOS => { + 'assignment_name' => 10, + 'assignment' => 12, + 'section_element' => 17, + 'section' => 15, + 'section_title' => 3 + } + }, + {#State 13 + DEFAULT => -12 + }, + {#State 14 + ACTIONS => { + "}" => 18 + } + }, + {#State 15 + ACTIONS => { + 'IDENTIFIER' => 11, + 'HIERARCHICAL_NAME' => 13 + }, + DEFAULT => -7, + GOTOS => { + 'assignment_name' => 10, + 'assignment' => 12, + 'section_element' => 19, + 'section' => 15, + 'section_title' => 3 + } + }, + {#State 16 + ACTIONS => { + 'STRING_LITERAL' => 20, + 'NUMBER' => 22 + }, + GOTOS => { + 'assignment_value' => 21 + } + }, + {#State 17 + DEFAULT => -8 + }, + {#State 18 + DEFAULT => -1 + }, + {#State 19 + DEFAULT => -9 + }, + {#State 20 + DEFAULT => -13 + }, + {#State 21 + ACTIONS => { + ";" => 23 + } + }, + {#State 22 + DEFAULT => -14 + }, + {#State 23 + DEFAULT => -10 + } +], + yyrules => +[ + [#Rule 0 + '$start', 2, undef + ], + [#Rule 1 + 'section', 4, +sub +#line 20 "PTFParser.yp" +{ + my $sectionStack = $_[0]->YYData->{sectionStack}; + pop @{$sectionStack}; + } + ], + [#Rule 2 + 'section_title', 2, +sub +#line 26 "PTFParser.yp" +{ + my $section = PTFSection->new (type => $_[1], name => $_[2]); + my $sectionStack = $_[0]->YYData->{sectionStack}; + + if (scalar(@{$sectionStack}) == 0) { + $_[0]->YYData->{root} = $section; + } else { + my $parent = $sectionStack->[$#{$sectionStack}]; + $parent->addSection ($section); + } + + push @{$sectionStack}, $section; + } + ], + [#Rule 3 + 'section_name', 0, undef + ], + [#Rule 4 + 'section_name', 1, undef + ], + [#Rule 5 + 'section_name', 1, undef + ], + [#Rule 6 + 'section_name', 1, undef + ], + [#Rule 7 + 'section_element', 0, undef + ], + [#Rule 8 + 'section_element', 2, undef + ], + [#Rule 9 + 'section_element', 2, undef + ], + [#Rule 10 + 'assignment', 4, +sub +#line 52 "PTFParser.yp" +{ + my $sectionStack = $_[0]->YYData->{sectionStack}; + my $parent= $sectionStack->[$#{$sectionStack}]; + $parent->addAssignment ($_[1], $_[3]); + } + ], + [#Rule 11 + 'assignment_name', 1, undef + ], + [#Rule 12 + 'assignment_name', 1, undef + ], + [#Rule 13 + 'assignment_value', 1, undef + ], + [#Rule 14 + 'assignment_value', 1, undef + ] +], + @_); + bless($self,$class); +} + +#line 67 "PTFParser.yp" + + +sub _Error { +# TODO: update this error function to be more useful + exists $_[0]->YYData->{ERRMSG} + and do { + print $_[0]->YYData->{ERRMSG}; + delete $_[0]->YYData->{ERRMSG}; + return; + }; + print "Syntax error on line $_[0]->YYData->{line}.\n"; +} + +sub _Lexer { + my($parser)=shift; + + if (! $parser->YYData->{INPUT}) { + if ($parser->YYData->{INPUT} = <$fh>) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + } + + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + + while (1) { + + # skip blank lines + if ($parser->YYData->{INPUT} =~ s/^[ \t\r\n]*$//) { + if ($parser->YYData->{INPUT} = <$fh>) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # Skip comments + if ($parser->YYData->{INPUT} =~ s/^#.*//) { + if ($parser->YYData->{INPUT} = <$fh>) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # Don't continue if the line length is 0; + if (length $parser->YYData->{INPUT} == 0) { + if ($parser->YYData->{INPUT} = <$fh>) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # tokenize input + $parser->YYData->{INPUT} =~ s/^([a-zA-Z_][a-zA-Z_0-9\/]*)// + and return('IDENTIFIER',$1); + $parser->YYData->{INPUT} =~ s/^"([^"\\]*(\\.[^"\\]*)*)"// + and return('STRING_LITERAL',$1); + $parser->YYData->{INPUT} =~ s/^"([^"\\]*(\\.[^"\\]*)*)// + and do { + my $literal = $1; + + do { + if ($parser->YYData->{INPUT} = <$fh>) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + + $parser->YYData->{INPUT} =~ s/([^"\\]*(\\.[^"\\]*)*)"// + and do { + $literal .= $1; + return ('STRING_LITERAL', $literal); + }; + + $parser->YYData->{INPUT} =~ s/([^"\\]*(\\.[^"\\]*)*)// + and $literal .= $1; + } while (1); + }; + $parser->YYData->{INPUT} =~ s/^([0-9]+)// + and return('NUMBER',$1); + $parser->YYData->{INPUT} =~ s/^([\$]{1,2}[a-zA-Z0-9 \/_]+)// + and return('HIERARCHICAL_NAME',$1); + $parser->YYData->{INPUT} =~ s/^(.)// + and return($1,$1); + } +} + +sub readPTF { + my $self = shift; + my $filename = shift; + + # store information for later use + $self->YYData->{line} = 0; + $self->YYData->{sectionStack} = []; + undef $self->YYData->{root}; + + if (-e $filename) { + open (PTFFILE, $filename); + $fh = \*PTFFILE; + } else { + $fh = \*STDIN; + } + + $self->YYParse ( + yylex => \&_Lexer, + yyerror => \&_Error, + ); + + if (-e $filename) { + close PTFFILE; + } + + return $self->YYData->{root}; +} + +1; diff --git a/arch/nios2nommu/scripts/PTF/PTFParser.yp b/arch/nios2nommu/scripts/PTF/PTFParser.yp new file mode 100644 index 0000000..e105e6a --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/PTFParser.yp @@ -0,0 +1,178 @@ +%{# +# Altera PTF file parser +# +# Copyright (c) 2004 Microtronix Datacom Ltd. +# + +package PTFParser; + +use PTF::PTFSection; + +%} + +%% +section: section_title '{' section_element '}' { + my $sectionStack = $_[0]->YYData->{sectionStack}; + pop @{$sectionStack}; + } +; + +section_title: IDENTIFIER section_name { + my $section = PTFSection->new (type => $_[1], name => $_[2]); + my $sectionStack = $_[0]->YYData->{sectionStack}; + + if (scalar(@{$sectionStack}) == 0) { + $_[0]->YYData->{root} = $section; + } else { + my $parent = $sectionStack->[$#{$sectionStack}]; + $parent->addSection ($section); + } + + push @{$sectionStack}, $section; + } +; + +section_name: # empty string + | IDENTIFIER + | NUMBER + | STRING_LITERAL +; + +section_element: # empty element + | assignment section_element + | section section_element +; + +assignment: assignment_name '=' assignment_value ';' { + my $sectionStack = $_[0]->YYData->{sectionStack}; + my $parent= $sectionStack->[$#{$sectionStack}]; + $parent->addAssignment ($_[1], $_[3]); + } +; + +assignment_name: IDENTIFIER + | HIERARCHICAL_NAME +; + +assignment_value: STRING_LITERAL + | NUMBER +; + +%% + +sub _Error { +# TODO: update this error function to be more useful + exists $_[0]->YYData->{ERRMSG} + and do { + print $_[0]->YYData->{ERRMSG}; + delete $_[0]->YYData->{ERRMSG}; + return; + }; + print "Syntax error on line $_[0]->YYData->{line}.\n"; +} + +sub _Lexer { + my($parser)=shift; + + if (! $parser->YYData->{INPUT}) { + if ($parser->YYData->{INPUT} = ) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + } + + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + + while (1) { + + # skip blank lines + if ($parser->YYData->{INPUT} =~ s/^[ \t\r\n]*$//) { + if ($parser->YYData->{INPUT} = ) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # Skip comments + if ($parser->YYData->{INPUT} =~ s/^#.*//) { + if ($parser->YYData->{INPUT} = ) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # Don't continue if the line length is 0; + if (length $parser->YYData->{INPUT} == 0) { + if ($parser->YYData->{INPUT} = ) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + $parser->YYData->{INPUT} and + $parser->YYData->{INPUT} =~ s/^\s*//; + next; + } + + # tokenize input + $parser->YYData->{INPUT} =~ s/^([a-zA-Z_][a-zA-Z_0-9\/]*)// + and return('IDENTIFIER',$1); + $parser->YYData->{INPUT} =~ s/^"([^"\\]*(\\.[^"\\]*)*)"// + and return('STRING_LITERAL',$1); + $parser->YYData->{INPUT} =~ s/^"([^"\\]*(\\.[^"\\]*)*)// + and do { + my $literal = $1; + + do { + if ($parser->YYData->{INPUT} = ) { + $parser->YYData->{line} += 1; + } else { + return ('', undef); + } + + $parser->YYData->{INPUT} =~ s/([^"\\]*(\\.[^"\\]*)*)"// + and do { + $literal .= $1; + return ('STRING_LITERAL', $literal); + }; + + $parser->YYData->{INPUT} =~ s/([^"\\]*(\\.[^"\\]*)*)// + and $literal .= $1; + } while (1); + }; + $parser->YYData->{INPUT} =~ s/^([0-9]+)// + and return('NUMBER',$1); + $parser->YYData->{INPUT} =~ s/^([\$]{1,2}[a-zA-Z0-9 \/_]+)// + and return('HIERARCHICAL_NAME',$1); + $parser->YYData->{INPUT} =~ s/^(.)// + and return($1,$1); + } +} + +sub readPTF { + my $self = shift; + my $filename = shift; + + # store information for later use + $self->YYData->{line} = 0; + $self->YYData->{sectionStack} = []; + undef $self->YYData->{root}; + + open (PTFFILE, $filename) or return undef; + $self->YYParse ( + yylex => \&_Lexer, + yyerror => \&_Error, + ); + close PTFFILE; + + return $self->YYData->{root}; +} diff --git a/arch/nios2nommu/scripts/PTF/PTFSection.pm b/arch/nios2nommu/scripts/PTF/PTFSection.pm new file mode 100644 index 0000000..a88d340 --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/PTFSection.pm @@ -0,0 +1,81 @@ +package PTFSection; + +use strict; + +# Fields: +# type = type of PTF Section +# name = name of PTF Section (can be blank) +# sections = array of section references +# assignments = hash of assignments + +sub new { + my $invocant = shift; + my $class = ref($invocant) || $invocant; + my $self = { + @_, + sections => [], + assignments => {}, + }; + bless ($self, $class); + return $self; +} + +sub addSection { + my ($self, $section) = @_; + push @{$self->{sections}}, $section; +} + +sub getSections { + my ($self, $type) = @_; + + if (! $type) { + return @{$self->{sections}}; + } + + my @matchedSections; + foreach my $section (@{$self->{sections}}) { + if ($section->type eq $type) { + push @matchedSections, $section; + } + } + + return @matchedSections; +} + +sub getSection { + my ($self, $type, $name) = @_; + + if (! $name) { + $name = ""; + } + + foreach my $section (@{$self->{sections}}) { + if ($section->type eq $type and $section->name eq $name) { + return $section; + } + } + +} + +sub addAssignment { + my ($self, $name, $value) = @_; + $self->{assignments}{$name} = $value; +} + +sub getAssignment { + my ($self, $name) = @_; + return $self->{assignments}{$name}; +} + +sub type { + my $self = shift; + return $self->{type}; +} + +sub name { + my $self = shift; + return $self->{name}; +} + + +1; diff --git a/arch/nios2nommu/scripts/PTF/SystemPTF.pm b/arch/nios2nommu/scripts/PTF/SystemPTF.pm new file mode 100644 index 0000000..9f44cfe --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/SystemPTF.pm @@ -0,0 +1,149 @@ +package SystemPTF; + +use strict; + +use PTF::PTFParser; +use PTF::PTFSection; +use PTF::SystemPTF::CPU; +use PTF::SystemPTF::Board; +use PTF::SystemPTF::Module; + +# Fields: + +my %module_order; + +sub new { + my $invocant = shift; + my $class = ref($invocant) || $invocant; + my $self = { + filename => "", + @_, + }; + + my $parser = PTFParser->new; + $self->{root} = $parser->readPTF($self->{filename}); + + # if the specified PTF file could not be read properly, return undef; + $self->{root} or return; + + # if the specified PTF file is not a SYSTEM, return undef. + if ($self->{root}->type ne 'SYSTEM') { + return; + } + + # initialize the modulemap + my @modules = $self->{root}->getSections ("MODULE"); + my $index = 0; + foreach my $module (@modules) { + # if the module is not enabled then do not add + my $SBI = $module->getSection ('SYSTEM_BUILDER_INFO', ''); + if ($SBI->getAssignment ('Is_Enabled') eq "1") { + $self->{modules}->{$module->name} = $module; + $module_order{$module->name} = $index; + $index += 1; + } + } + + bless ($self, $class); + return $self; +} + +sub getName { + my ($self) = @_; + return $self->{root}->name; +} + +sub getCPUList { + my ($self, @classes) = @_; + my @cpulist = (); + + foreach my $module_name (keys (%{$self->{modules}})) { + my $module = $self->{modules}->{$module_name}; + my $module_class = $module->getAssignment ('class'); + foreach my $class (@classes) { + if ($module_class eq $class) { + push @cpulist, $module->name; + } + } + } + + return @cpulist; +} + +sub getCPU { + my ($self, $name) = @_; + + my $cpu = CPU->new (ptf => $self->{modules}->{$name}); +} + +sub getModule { + my ($self, $name) = @_; + + my $module = Module->new (ptf => $self->{modules}->{$name}); +} + +sub getSlaveModules { + my ($self, $master, $type) = @_; + + # create %connected set with just the master + # value of hash key is inconsequential + my %connected; + $connected{$master} = ( ); + + # create %pool set with all modules + # value of hash key is inconsequential + my %pool; + @pool{keys (%{$self->{modules}})} = ( ); + + my $dirty = 1; + while ($dirty) { + # %pool = difference (%pool, %connected) + delete @pool{ keys %connected }; + + $dirty = 0; + + foreach my $name (keys %pool) { + my $mod = $self->getModule ($name); + my %mod_masters; + @mod_masters{ $mod->getMasters ($type) } = ( ); + + # if intersection (%masters, %connected) is not empty + delete @mod_masters{ + grep ( ! exists $connected{ $_ }, + keys %mod_masters) }; + + if (scalar(keys(%mod_masters)) > 0) { + $connected{$name} = ( ); + $dirty = 1; + } + } + } + + delete $connected{$master}; + + return sort module_comparison keys (%connected); +} + +sub getClockFreq () { + my ($self) = @_; + + my $wsa = $self->{root}->getSection ('WIZARD_SCRIPT_ARGUMENTS', ''); + $wsa or return; + + my $result = $wsa->getAssignment ('clock_freq'); + return $result; +} + +# This is not really a class method... more of a helper function really... +sub module_comparison { + if ($module_order{$a} > $module_order{$b}) { + return 1; + } elsif ($module_order{$a} < $module_order{$b}) { + return -1; + } else { + return 0; + } +} + + +1; diff --git a/arch/nios2nommu/scripts/PTF/SystemPTF/Board.pm b/arch/nios2nommu/scripts/PTF/SystemPTF/Board.pm new file mode 100644 index 0000000..fe2bbc8 --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/SystemPTF/Board.pm @@ -0,0 +1,2 @@ +1; + diff --git a/arch/nios2nommu/scripts/PTF/SystemPTF/CPU.pm b/arch/nios2nommu/scripts/PTF/SystemPTF/CPU.pm new file mode 100644 index 0000000..ea10598 --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/SystemPTF/CPU.pm @@ -0,0 +1,89 @@ +package CPU; + +use PTF::PTFSection; + +sub new { + my $invocant = shift; + my $class = ref($invocant) || $invocant; + my $self = { + @_, + }; + + # if no ptf section was passed in, then return undef + $self->{ptf} or return; + + bless ($self, $class); + return $self; +} + +sub getClass { + my ($self) = @_; + + return $self->{ptf}->getAssignment ('class'); +} + +sub getVersion { + my ($self) = @_; + + return $self->{ptf}->getAssignment ('class_version'); +} + +sub getConstant { + my ($self, $name) = @_; + + # get WSA + $wsa = $self->{ptf}->getSection('WIZARD_SCRIPT_ARGUMENTS', ''); + $wsa or return; + + # get constants section + $constants = $wsa->getSection('CONSTANTS', ''); + $constants or return; + + # get section for specific constant + $constant = $constants->getSection ('CONSTANT', $name); + $constant or return; + + # get value of constant + $value = $constant->getAssignment ('value'); + return $value; +} + +sub getWSAAssignment { + my ($self, $name) = @_; + + # get WSA + $wsa = $self->{ptf}->getSection('WIZARD_SCRIPT_ARGUMENTS', ''); + $wsa or return; + + # get value of WSA Assignment + $value = $wsa->getAssignment ($name); + return $value; +} + +sub getResetLocationOffset { + my ($self) = @_; + + $wsa = $self->{ptf}->getSection('WIZARD_SCRIPT_ARGUMENTS', ''); + $wsa or return; + + my $location = $wsa->getAssignment ('reset_slave'); + my $offset = $wsa->getAssignment ('reset_offset'); + + return ($location, $offset); +} + +sub isEnabled { + my ($self) = @_; + + $sbi = $self->{ptf}->getSection('SYSTEM_BUILDER_INFO', ''); + $sbi or return; + + my $enabled = $sbi->getAssignment ('Is_Enabled'); + if ($enabled eq "1") { + return 1; + } else { + return 0; + } +} + +1; diff --git a/arch/nios2nommu/scripts/PTF/SystemPTF/Module.pm b/arch/nios2nommu/scripts/PTF/SystemPTF/Module.pm new file mode 100644 index 0000000..48d246b --- /dev/null +++ b/arch/nios2nommu/scripts/PTF/SystemPTF/Module.pm @@ -0,0 +1,267 @@ +package Module; + +use PTF::PTFSection; + +sub new { + my $invocant = shift; + my $class = ref($invocant) || $invocant; + my $self = { + @_, + }; + + # if no ptf section was passed in, then return undef + $self->{ptf} or return; + + bless ($self, $class); + return $self; +} + +sub getClass { + my ($self) = @_; + + return $self->{ptf}->getAssignment ('class'); +} + +sub getPorts { + my ($self) = @_; + + my @port_names; + + my @ports = $self->{ptf}->getSections ('SLAVE'); + foreach $port (@ports) { + push @port_names, $port->name; + } + + return @port_names; +} + +sub getPort { + my ($self, $port_name) = @_; + + my $port; + + if (! $port_name) { + # use first port found + my @port_names = $self->getPorts (); + $port = $self->{ptf}->getSection ('SLAVE', $port_names[0]); + } else { + $port = $self->{ptf}->getSection ('SLAVE', $port_name); + if (! $port) { + # return undef if the PTF section doesn't exist + return; + } + } + + return $port; +} + +sub getWSAAssignment { + my ($self, $assignment) = @_; + + my $WSA = $self->{ptf}->getSection ('WIZARD_SCRIPT_ARGUMENTS', ''); + if (! $WSA) { + # return undef if the WSA section doesn't exist. + return; + } + + my $result = $WSA->getAssignment ($assignment); + + return $result; + +} + +sub getWSAConstant { + my ($self, $name) = @_; + + my $WSA = $self->{ptf}->getSection ('WIZARD_SCRIPT_ARGUMENTS', ''); + if (! $WSA) { + # return undef if the WSA section doesn't exist. + return; + } + + my $constants = $WSA->getSection ('CONSTANTS', ''); + if (! $constants) { + # return undef if the CONSTANTS section doesn't exist. + return; + } + + my $constant = $constants->getSection ('CONSTANT', $name); + if (! $constant) { + # return undef if the CONSTANT $name section doesn't exist. + return; + } + + my $result = $constant->getAssignment ('value'); + return $result; + +} + +sub isMemoryDevice { + my ($self, $port_name) = @_; + + my $port = $self->getPort ($port_name); + if (! $port) { + # return undef if the PTF section doesn't exist + return; + } + + my $SBI = $port->getSection('SYSTEM_BUILDER_INFO', ''); + if (! $SBI) { + # return undef if the PTF section doesn't exist + return; + } + + my $result = $SBI->getAssignment('Is_Memory_Device'); + + return $result; +} + +sub isCustomInstruction { + my ($self, $port_name) = @_; + + my $port = $self->getPort ($port_name); + if (! $port) { + # return undef if the PTF section doesn't exist + return; + } + + my $SBI = $port->getSection('SYSTEM_BUILDER_INFO', ''); + if (! $SBI) { + # return undef if the PTF section doesn't exist + return; + } + + my $result = $SBI->getAssignment('Is_Custom_Instruction'); + + return $result; +} + +sub getBaseAddress { + my ($self, $port_name) = @_; + + my $port = $self->getPort ($port_name); + if (! $port) { + # return undef if the PTF section doesn't exist + return; + } + + my $SBI = $port->getSection('SYSTEM_BUILDER_INFO', ''); + if (! $SBI) { + # return undef if the PTF section doesn't exist + return; + } + + my $result = $SBI->getAssignment('Base_Address'); + if ($result eq 'N/A') { + return; + } + return $result; +} + +sub getSize { + my ($self, $port_name) = @_; + + my $port = $self->getPort ($port_name); + $port or return; #return undef if the ptf section doesn't exist + + my $SBI = $port->getSection ('SYSTEM_BUILDER_INFO', ''); + my $data_width = $SBI->getAssignment ('Data_Width'); + my $addr_width = $SBI->getAssignment ('Address_Width'); + + if ($data_width == 8) { + $size = 1 << $addr_width; + } elsif ($data_width == 16) { + $size = 1 << ($addr_width + 1); + } elsif ($data_width == 32) { + $size = 1 << ($addr_width + 2); + } elsif ($data_width == 64) { + $size = 1 << ($addr_width + 3); + } elsif ($data_width == 128) { + $size = 1 << ($addr_width + 4); + } else { + return; + } + + $size_text = sprintf ("%#010x", $size); + return $size_text; +} + +sub getIRQ { + my ($self, $port_name) = @_; + + my $port = $self->getPort ($port_name); + if (! $port) { + # return undef if the PTF section doesn't exist + return; + } + + my $SBI = $port->getSection('SYSTEM_BUILDER_INFO', ''); + if (! $SBI) { + # return undef if the PTF section doesn't exist + return; + } + + my $result = $SBI->getAssignment('Has_IRQ'); + if ($result ne "1") { + # this device has no associated IRQ + return; + } + + my @irq_masters = $SBI->getSections('IRQ_MASTER'); + return $irq_masters[0]->getAssignment('IRQ_Number'); +} + +sub getMasters { + my ($self, $type) = @_; + my %masters = (); + + # get list of all slave for device + my @slaves = $self->{ptf}->getSections ('SLAVE'); + + # get list of masters of relevant type for all slaves + foreach my $slave (@slaves) { + # get SBI for slave + my $SBI = $slave->getSection ('SYSTEM_BUILDER_INFO', ''); + + # get list of all MASTERED_BY and IRQ_MASTER sections + my @mastered_bys = $SBI->getSections ('MASTERED_BY'); + my @irq_masters = $SBI->getSections ('IRQ_MASTER'); + + # start adding masters to the list + foreach my $master (@mastered_bys, @irq_masters) { + my $section_name = $master->name; + $section_name =~ /(.*)\/(.*)/; + my $master_name = $1; + my $master_type = $2; + + if (! $type) { + $masters{$master_name} = (); + } else { + if ($master_type eq $type) { + $masters{$master_name} = (); + } + } + + } + + } + + return keys (%masters); +} + +sub isEnabled { + my ($self) = @_; + + $sbi = $self->{ptf}->getSection('SYSTEM_BUILDER_INFO', ''); + $sbi or return; + + my $enabled = $sbi->getAssignment ('Is_Enabled'); + if ($enabled eq "1") { + return 1; + } else { + return 0; + } +} + +1; + diff --git a/arch/nios2nommu/scripts/gen_nios2_system.h.pl b/arch/nios2nommu/scripts/gen_nios2_system.h.pl new file mode 100644 index 0000000..b7bcff5 --- /dev/null +++ b/arch/nios2nommu/scripts/gen_nios2_system.h.pl @@ -0,0 +1,314 @@ +# This script generates an appropriate hardware.h file for Nios II Linux based +# on information within the target hardware's system.ptf file. This script +# outputs everything to stdout. +# +# usage: +# +# [SOPC Builder]$ perl gen_hardware.h.pl \ +# +# + +use PTF::SystemPTF; +use strict; +use integer; + +my $target_cpu; +my $exec_location; +my $upload_location; + +if (scalar (@ARGV) != 3) { + print STDERR "ERROR: Invalid number of parameters.\n"; + print ("#error Invalid number of parameters.\n"); + exit; +} else { + $target_cpu = $ARGV[0]; + $exec_location = $ARGV[1]; + $upload_location = $ARGV[2]; +} + +# +# startup the parser. +# +my $system = SystemPTF->new; +if (!$system) { + print STDERR "ERROR: Specified file is not a SYSTEM ptf file.\n"; + print ("#error Specified file is not a SYSTEM ptf file.\n"); + exit; +} + +# +# print header for nios2_system.h +# +print <getCPU ($target_cpu); +if (! $cpu) { + print STDERR "ERROR: $target_cpu is not a valid CPU in system: " . $system->getName () . ".\n"; + print "#error $target_cpu is not a valid CPU in system: " . $system->getName () . ".\n"; + exit 1; +} + +my $exec_module = $system->getModule ($exec_location); +if (! $exec_module) { + print STDERR "ERROR: $exec_location is not a valid module in the system: " . $system->getName() . ".\n"; + print "#error $exec_location is not a valid module in system: " . $system->getName () . ".\n"; + exit 1; +} + +my $upload_module = $system->getModule ($upload_location); +if (! $upload_module) { + print STDERR "ERROR: $upload_location is not a valid module in the system: " . $system->getName() . ".\n"; + print "#error $upload_location is not a valid module in system: " . $system->getName () . ".\n"; + exit 1; +} + +my %found_classes; +my @found_classes_order; + +# the SYSPTF environment variable is set by kernel build process. +if ($ENV{SYSPTF} ne "") { + print "/* Input System: " . $ENV{SYSPTF} . ":" . $system->getName () . " */\n"; +} else { + print "/* Input System: " . $system->getName () . " */\n"; +} +print "/* Target CPU: " . $target_cpu . " */\n"; + +print "\n"; + +print <getSlaveModules ($target_cpu); +foreach my $module_name (@module_names) { + my $module = $system->getModule ($module_name); + my $module_class = $module->getClass (); + my @module_ports = $module->getPorts (); + my $mask = 0; + my $text_printed = 0; + my $output = ""; + + # $output .= "/* $module_name (of type $module_class) */\n"; + + if (! exists $found_classes{$module_class}) { + push @found_classes_order, $module_class; + } + push @{$found_classes{$module_class}}, $module_name; + + if (! $module->isMemoryDevice () && ! $module->isCustomInstruction ()) { + # turn on high bit for base address + $mask = 0x80000000; + } + + if (scalar (@module_ports) == 1) { + my $base_address; + my $mem_size; + my $mem_end; + + # base address information + $base_address = $module->getBaseAddress (); + if ($base_address) { + $output .= sprintf ("#define na_%-50s %#010x\n", + ($module_name, hex ($base_address) | $mask)); + $text_printed = 1; + } + if ($module->isMemoryDevice()) { + # output size and end address + $mem_size = $module->getSize(); + $output .= sprintf ("#define na_%-50s %#010x\n", + ($module_name . "_size", hex ($mem_size))); + $mem_end = hex ($mem_size) + hex($base_address); + $output .= sprintf ("#define na_%-50s %#010x\n", + ($module_name . "_end", $mem_end)); + + $text_printed = 1; + } + + # irq information + $result = $module->getIRQ (); + if (defined ($result)) { + $output .= sprintf ("#define na_%-30s %30s\n", + ($module_name . "_irq", $result)); + $text_printed = 1; + } + + } else { + # if device has multiple ports + foreach my $port_name (@module_ports) { + # base address information + $result = $module->getBaseAddress ($port_name); + if ($result) { + $output .= sprintf ("#define na_%-50s %#010x\n", + ($module_name . "_" . $port_name, hex ($result) | $mask)); + $text_printed = 1; + } + + # irq information + $result = $module->getIRQ ($port_name); + if (defined ($result)) { + $output .= sprintf ("#define na_%-30s %30s\n", + ($module_name . "_" . $port_name . "_irq", $result)); + $text_printed = 1; + } + } + } + + if ($text_printed == 1) { + # $output .= "\n"; + print $output; + } +} + +print "\n"; + +# +# Handle special cases through customized perl scripts +# +foreach my $class_name (@found_classes_order) { + my $code = ""; + + foreach my $dir (@INC) { + if (-e "$dir/nios2_system.h/$class_name.pm") { + print "/* Executing ...scripts/nios2_system.h/$class_name.pm */\n"; + $code .= "require \"$dir/nios2_system.h/BasicModule.pm\";"; + $code .= "require \"$dir/nios2_system.h/$class_name.pm\";"; + $code .= $class_name . "::run(\$system, \@{\$found_classes{\$class_name}});"; + eval $code; + if ($@) { + print "#warning Could not execute ...scripts/nios2_system.h/$class_name.pm\n"; + print "#warning Error message is stored in nios2_system.h:\n"; + print "/*\n"; + print "$@"; + print "*/\n"; + print STDERR "Could not execute ...scripts/nios2_system.h/$class_name.pm\n"; + print STDERR "Error message follows:\n"; + print STDERR "$@"; + } + last; + } + } +} + +# +# Write out system information +# +print "/*\n"; +print " * Basic System Information\n"; +print " */\n"; + +$result = $cpu->getWSAAssignment ('cache_icache_size'); +printf ("#define %-53s %10d\n", ("nasys_icache_size", $result)); + +$result = $cpu->getConstant ('nasys_icache_line_size'); +printf ("#define %-53s %10d\n", ("nasys_icache_line_size", $result)); + +$result = $cpu->getWSAAssignment ('cache_dcache_size'); +printf ("#define %-53s %10d\n", ("nasys_dcache_size", $result)); + +$result = $cpu->getConstant ('nasys_dcache_line_size'); +printf ("#define %-53s %10d\n", ("nasys_dcache_line_size", $result)); + +print "\n"; + +printf ("#define %-33s %30s\n", + ("nasys_program_mem", "na_${exec_location}")); +printf ("#define %-33s %30s\n", + ("nasys_program_mem_size", "na_${exec_location}_size")); +printf ("#define %-33s %30s\n", + ("nasys_program_mem_end", "na_${exec_location}_end")); + +print "\n"; + +if ($upload_location eq "flash_kernel") { + # nothing to do + print ("/* Redefinition of CFI flash memory unecessary */\n"); +} else { + my $module = $system->getModule ("flash_kernel"); + if ($module) { + # there is a conflicting module in the system, error. + print STDERR "Error, a SOPC module named flash_kernel already exists but is not the upload location.\n"; + print "#error The module name \"flash_kernel\" already exists but isn't the upload location.\n"; + print "#error This will break the kernel.\n"; + print "#error Please rename the module to something else in SOPC Builder.\n\n"; + exit 1; + } else { + print ("/*\n"); + print (" * Redefining upload location ($upload_location) to flash_kernel.\n"); + print (" */\n\n"); + # undefine the original module names and re-define them here. + print ("#undef na_${upload_location}\n"); + print ("#undef na_${upload_location}_size\n"); + print ("#undef na_${upload_location}_end\n"); + + my $base_address = $upload_module->getBaseAddress (); + printf ("#define %-33s %30s\n", + ("na_flash_kernel", $base_address)); + + my $mem_size = $upload_module->getSize(); + printf ("#define %-33s %30s\n", + ("na_flash_kernel_size", $mem_size)); + + my $mem_end = hex ($base_address) + hex ($mem_size); + printf ("#define %-53s %#010x\n", + ("na_flash_kernel_end", $mem_end)); + } +} + +print "\n"; + +printf ("#define %-33s %30s\n", + ("nasys_clock_freq", $system->getClockFreq())); +printf ("#define %-33s %30s\n", + ("nasys_clock_freq_1000", int ($system->getClockFreq()) / 1000)); + +{ + my ($reset_location, $reset_offset) = $cpu->getResetLocationOffset(); + my ($reset_module_name, $reset_port_name) = ($reset_location =~ /(.*)\/(.*)/); + my $reset_module = $system->getModule ($reset_module_name); + my $reset_address = $reset_module->getBaseAddress ($reset_port_name); + + $reset_address = hex ($reset_address) + hex ($reset_offset); + printf ("#define %-53s %#010x\n", + ("CPU_RESET_ADDRESS", $reset_address)); +} + +print "\n"; + +# +# print footer for nios2_system.h +# +print < +# + +use PTF::SystemPTF; +use strict; +use integer; + +my $ptf_filename; +my $target_filename; +my $index; +my $system; + +# +# Subroutine: Prompt user for an answer +# + +sub request_answer { + my ($min, $max) = @_; + my $answer; + + do { + print "Selection: "; + $answer = ; + if (! ($answer >= $min && $answer <= $max)) { + print "Invalid response, please try again.\n"; + } + } until $answer >= $min && $answer <= $max; + + return $answer; +} + +# +# Check for correct number of args +# + +if (scalar (@ARGV) != 2) { + print STDERR "ERROR: Invalid number of parameters.\n"; + exit; +} else { + $ptf_filename = $ARGV[0]; + $target_filename = $ARGV[1]; +} + +# +# Check to see if the specified file exists +# + +if (! -e $ptf_filename) { + print STDERR "ERROR: Could not open SYSTEM ptf file.\n"; + exit; +} + +# +# startup the parser. +# +$system = SystemPTF->new (filename => $ptf_filename); +if (!$system) { + print STDERR "ERROR: Specified file is not a SYSTEM ptf file.\n"; + exit; +} + +# +# Grab listing of Nios II processors and force user to select one: +# + +print "\n--- Please select which CPU you wish to build the kernel against:\n\n"; + +my @cpulist = $system->getCPUList ('altera_nios2'); +my %cpuinfo; + +$index = 1; +foreach my $cpu (@cpulist) { + my $cpu_module = $system->getCPU ($cpu); + if ($cpu_module->isEnabled ()) { + my $class = $cpu_module->getClass(); + my $type = $cpu_module->getWSAAssignment('cpu_selection'); + my $version = $cpu_module->getVersion(); + + print "($index) $cpu - Class: $class Type: $type Version: $version\n"; + } + $index += 1; +} + +print "\n"; + +my $cpu_selection = $cpulist[request_answer (1, $index - 1) - 1]; + +# +# Grab list of memory devices that $cpu_selection is hooked up to: +# +my @modulelist = $system->getSlaveModules ($cpu_selection); +my %cfiinfo; +my %meminfo; +foreach my $module_name (@modulelist) { + my $module = $system->getModule ($module_name); + my $class = $module->getClass (); + + if ($module->isEnabled ()) { + if ($class eq 'altera_avalon_cfi_flash') { + $cfiinfo{$module_name}{class} = $class; + $cfiinfo{$module_name}{size} = $module->getSize(); + } + + if ($module->isMemoryDevice()) { + $meminfo{$module_name}{class} = $class; + $meminfo{$module_name}{size} = $module->getSize(); + } + } +} + +# +# Select an upload device: +# +print "\n--- Please select a device to upload the kernel to:\n\n"; + +$index = 1; +foreach my $name (keys (%cfiinfo)) { + my $size = hex ($cfiinfo{$name}{size}); + print "($index) $name\n\tClass: $cfiinfo{$name}{class}\n\tSize: $size bytes\n\n"; + $index += 1; +} + +my @cfilist = keys (%cfiinfo); +my $cfi_selected = $cfilist[request_answer (1, $index - 1) - 1]; + +delete $meminfo{$cfi_selected}; + +# +# Select program memory to execute kernel from: +# +print "\n--- Please select a device to execute kernel from:\n\n"; + +$index = 1; +foreach my $name (keys (%meminfo)) { + my $size = hex ($meminfo{$name}{size}); + print "($index) $name\n\tClass: $meminfo{$name}{class}\n\tSize: $size bytes\n\n"; + $index += 1; +} + +my @memlist = keys (%meminfo); +my $mem_selected = $memlist[request_answer (1, $index - 1) - 1]; + +print "\n--- Summary using\n\n"; +print "PTF: $ptf_filename\n"; +print "CPU: $cpu_selection\n"; +print "Device to upload to: $cfi_selected\n"; +print "Program memory to execute from: $mem_selected\n"; + +# +# Write settings out to Makefile fragment +# +open (HWMK, ">$target_filename") || + die "Could not write to $target_filename"; + +print HWMK "SYSPTF = $ptf_filename\n"; +print HWMK "CPU = $cpu_selection\n"; +print HWMK "UPLMEM = $cfi_selected\n"; +print HWMK "EXEMEM = $mem_selected\n"; + +close (HWMK); + +print "\n--- Settings written to $target_filename\n\n"; \ No newline at end of file diff --git a/arch/nios2nommu/scripts/nios2_system.h/BasicModule.pm b/arch/nios2nommu/scripts/nios2_system.h/BasicModule.pm new file mode 100644 index 0000000..e15c26b --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/BasicModule.pm @@ -0,0 +1,267 @@ +package BasicModule; + +require PTF::SystemPTF; +require PTF::SystemPTF::Module; +use strict; + +# Description: Prints an error message to stdout. This should prefix each line +# with "#error " so that it can be properly read by the C +# pre-processor. +# Args: $module_name: name of module that was is required by driver +# $class_name: name of device class that module belongs to. +sub print_error_name_used { + my ($class, $module_name, $class_name) = @_; + + print "#error The kernel requires that the $class->required_class_name device be named as $module_name.\n"; + print "#error The current hardware has $module_name defined as a(n) $class_name device.\n"; + print "#error This will cause the kernel to fail.\n"; + print "#error Please rename the current $module_name device to something else in SOPC Builder.\n"; +} + +# Description: This casts the base address to a specific data type +# By default, it does not cast the base address to +# anything. +sub base_address_cast { + my ($class, $port_name) = @_; + return; +} + +# Description: This sub-routine prints out a prefix that is shown only once +# before any translations take place. +sub print_prefix { + my ($class, $system) = @_; + printf ("\n"); +} + +# Description: Prints a set of lines to stdout that re-defines all symbols +# related to $module_name to the symbols required by the driver. +# Typically starts off with "#undefine ..." statements followed +# by one or more "#define statements". +# Args: $required_module_name: the module name that's expected by the kernel. +# $module_name: the name of the module that was found in the PTF file. +sub translate { + my ($class, $system, $required_module_name, $module_name) = @_; + + # get the necessary info about the module + my $module = $system->getModule ($module_name); + my @port_names = $module->getPorts (); + + my $boolean_base_address_cast = 0; + if (scalar (@port_names) > 1) { + foreach my $port_name (@port_names) { + my $cast = $class->base_address_cast ($port_name); + if (defined ($cast)) { + $boolean_base_address_cast = 1; + last; + } + } + } else { + my $cast = $class->base_address_cast; + if (defined ($cast)) { + $boolean_base_address_cast = 1; + } + } + + if ($module_name eq $required_module_name && + !$boolean_base_address_cast) { + printf ("/* No translation necessary for $module_name */\n\n"); + return; + } + + # undefine the original entries + print "/* Redefining $module_name -> $required_module_name */\n"; + if (scalar (@port_names) == 1) { + my $irq = $module->getIRQ (); + print "#undef na_" . $module_name . "\n"; + if (defined ($irq)) { + print "#undef na_" . $module_name . "_irq\n"; + } + print "\n"; + } else { + foreach my $port_name (@port_names) { + print "#undef na_" . $module_name . "_" . + $port_name . "\n"; + my $irq = $module->getIRQ ($port_name); + if (defined ($irq)) { + print "#undef na_" . $module_name . "_" . + $port_name . "_irq\n"; + } + print "\n"; + } + } + + if (scalar (@port_names) == 1) { + # set up a string to pass to printf that will output the correct + # #define base address statement. + + # turn on the high bit for the base address to bypass cache. + my $base_address = $module->getBaseAddress (); + $base_address = hex ($base_address) | 0x80000000; + + my $cast = $class->base_address_cast; + $class->print_define_line ($required_module_name, + undef, "addr", $cast, $base_address); + + # print out an IRQ define statement if necessary + my $irq = $module->getIRQ (); + if (defined ($irq)) { + $class->print_define_line ($required_module_name, + undef, "irq", undef, $irq); + } + printf ("\n"); + } else { + foreach my $port_name (@port_names) { + my $cast = $class->base_address_cast ($port_name); + my $base_address = $module->getBaseAddress ($port_name); + $base_address = hex ($base_address) | 0x80000000; + $class->print_define_line ($required_module_name, + $port_name, "addr", $cast, $base_address); + + my $irq = $module->getIRQ ($port_name); + if (defined ($irq)) { + $class->print_define_line ( + $required_module_name, $port_name, + "irq", undef, $irq); + } + + print "\n"; + } + } +} + +# Description: The following sub-routine prints out "undef" or "define" +# statements based on the arguments received. +# Args: $name: "define" or "undef" +# $port: name of port (if applicable) +# $type: "addr" or "irq" +# $cast: data type to cast base address to (if applicable) +# $value: value of symbol to be defined (if applicable) +sub print_define_line { + my ($class, $name, $port, $type, $cast, $value) = @_; + + # construct the symbol that is being used + my $symbol .= "na_"; + $symbol .= $name; + + $symbol .= defined ($port) ? "_" . $port : ""; + $symbol .= $type eq "irq" ? "_irq" : ""; + + my $string_value; + if ($type eq "addr") { + $string_value = sprintf ("%#010x", $value); + if (defined $cast) { + $string_value = "(($cast*) $string_value)"; + } + } else { + $string_value = $value; + } + printf ("%-41s %30s\n", "#define $symbol", $string_value); +} + +# Description: This sub-routine prints out a prefix that is shown only once +# after any translations take place. +sub print_suffix { + my ($class, $system) = @_; + # intentionally left empty +} + +# Description: The following function allows the class to further determine if +# the module is valid. For instance, the timer class requires +# that the selected module does not have a fixed period. +# This function returns true by default which basically means +# that all modules belonging to class are valid. +sub is_module_valid { + my ($class, $system, $module_name) = @_; + return 1; +} + +# Description: This sub-routine is required. It is executed by the +# "../gen_nios2_system_h.pl" script whenever any devices of type +# $class->required_class_name are found in the PTF file. +# +# It looks for any conflicting module names first. If any are +# found, "print_error_name_used" is called and this perl module +# exits. +# +# It then goes through the list of module names found in the PTF +# file that are of type $class->required_class_name and maps them to the +# list of unused names in $class->required_module_names. +# +# Finally, it will call the "translate" sub-routine to output the +# symbols required by the driver. +# Args: $system: a variable containing a reference to the system.ptf file that +# provides full access to any information in the file. +# @found_module_names: a list of module names that are of type +# $class->required_class_name +sub run2 { + my ($class, $system, @found_module_names) = @_; + + # initialize a mapping of required module names to actual module names + my %module_map; + foreach my $module_name ($class->required_module_names) { + $module_map{$module_name} = ""; + } + + # if the required module name is already in use in the PTF file for a + # different device class, flag it as an error. + my $error_found = 0; + foreach my $module_name ($class->required_module_names) { + my $module = $system->getModule ($module_name); + + if (!defined ($module)) { + next; + } + + my $class_name = $module->getClass (); + if ($class_name ne $class->required_class_name) { + $class->print_error_name_used ($class, $module_name, $class_name); + $error_found = 1; + } + } + + # if errors were found, then there's no point in continuing. + if ($error_found == 1) { + return; + } + + # Run through list of modules that belong to the class and start + # mapping each module name to the first unused required module name + # as defined above + FOUND_MOD_LOOP: foreach my $module_name (@found_module_names) { + + # If the module name has already been used, then continue + # to the next one. + foreach my $required_module_name ($class->required_module_names) { + if ($module_map{$required_module_name} eq $module_name) { + next FOUND_MOD_LOOP; + } + } + + # assertion: $module_name is not mapped yet. + foreach my $required_module_name ($class->required_module_names) { + if ($module_map{$required_module_name} ne "") { + next; + } + + if ($class->is_module_valid ($system, $module_name)) { + $module_map{$required_module_name} = $module_name; + } + last; + } + } + + $class->print_prefix ($system); + + # Now that everything's been mapped (or as close as we're going to get + # to it being mapped), start printing out the literal translation. + foreach my $required_module_name ($class->required_module_names) { + my $module_name = $module_map{$required_module_name}; + if (length ($module_name) > 0) { + $class->translate ($system, $required_module_name, $module_name); + } + } + + $class->print_suffix ($system); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_cf.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_cf.pm new file mode 100644 index 0000000..dada452 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_cf.pm @@ -0,0 +1,18 @@ +package altera_avalon_cf; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + "ide" +} + +sub required_class_name { + "altera_avalon_cf" +} + +sub run { + altera_avalon_cf->run2(@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_jtag_uart.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_jtag_uart.pm new file mode 100644 index 0000000..22bb9c9 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_jtag_uart.pm @@ -0,0 +1,18 @@ +package altera_avalon_jtag_uart; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + ("jtag_uart") +} + +sub required_class_name { + "altera_avalon_jtag_uart"; +} + +sub run { + altera_avalon_jtag_uart->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_lan91c111.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_lan91c111.pm new file mode 100644 index 0000000..5a29b7e --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_lan91c111.pm @@ -0,0 +1,38 @@ +package altera_avalon_lan91c111; + +require PTF::SystemPTF; +require PTF::SystemPTF::Module; +use base qw(BasicModule); +use strict; + +sub required_module_names { + "enet" +} + +sub required_class_name { + "altera_avalon_lan91c111" +} + +sub translate { + my $class = shift; + my ($system, $required_module_name, $module_name) = @_; + $class->SUPER::translate (@_); + + my $module = $system->getModule ($module_name); + + my $offset_keyword = "LAN91C111_REGISTERS_OFFSET"; + my $offset = $module->getWSAConstant ($offset_keyword); + printf ("%-41s %30s\n", "#define $offset_keyword", $offset); + + my $width_keyword = "LAN91C111_DATA_BUS_WIDTH"; + my $width = $module->getWSAConstant ($width_keyword); + printf ("%-41s %30s\n", "#define $width_keyword", $width); + + print "\n"; +} + +sub run { + altera_avalon_lan91c111->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_pio.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_pio.pm new file mode 100644 index 0000000..afdbcae --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_pio.pm @@ -0,0 +1,46 @@ +package altera_avalon_pio; + +require PTF::SystemPTF; +require PTF::SystemPTF::Module; +use strict; + +sub run { + my ($system, @pio_names) = @_; + + print "#ifndef __ASSEMBLY__\n"; + print "#include \n"; + print "#endif\n\n"; + + foreach my $pio_name (@pio_names) { + my $module = $system->getModule ($pio_name); + + # get all the relevant information + my $base_address = $module->getBaseAddress (); + $base_address = hex ($base_address) | 0x80000000; + my $irq = $module->getIRQ (); + + print "/* Casting base addresses to the appropriate structure */\n"; + + # undefine all the old symbols first + print "#undef na_${pio_name}\n"; + if (defined ($irq)) { + print "#undef na_${pio_name}_irq\n"; + print "\n"; + } + + # define base address + $base_address = sprintf ("%#010x", $base_address); + printf ("%-41s %30s\n", "#define na_${pio_name}", + "((np_pio*) ${base_address})"); + + # define irq + if (defined ($irq)) { + printf ("%-41s %30s\n", "#define na_${pio_name}_irq", + $irq); + } + + print "\n"; + } +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_spi.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_spi.pm new file mode 100644 index 0000000..719a22c --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_spi.pm @@ -0,0 +1,30 @@ +package altera_avalon_spi; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + "spi" +} + +sub required_class_name { + "altera_avalon_spi" +} + +sub base_address_cast { + "np_spi" +} + +sub print_prefix { + my ($class, $system) = @_; + + print "#ifndef __ASSEMBLY__\n"; + print "#include \n"; + print "#endif\n\n"; +} + +sub run { + altera_avalon_spi->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_sysid.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_sysid.pm new file mode 100644 index 0000000..deb9826 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_sysid.pm @@ -0,0 +1,18 @@ +package altera_avalon_sysid; + +use base qw(BasicModule); +use strict; + +sub required_class_name { + "altera_avalon_sysid" +} + +sub required_module_names { + "sysid" +} + +sub run { + altera_avalon_sysid->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_timer.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_timer.pm new file mode 100644 index 0000000..495ccdc --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_timer.pm @@ -0,0 +1,46 @@ +package altera_avalon_timer; + +use base qw(BasicModule); +use strict; + +sub required_class_name { + "altera_avalon_timer"; +} + +sub required_module_names { + "timer0" +} + +sub print_prefix { + my ($class, $system) = @_; + + print "\n"; + print "#ifndef __ASSEMBLY__\n"; + print "#include \n"; + print "#endif\n"; + print "\n"; +} + +sub base_address_cast { + "np_timer" +} + +# only timers with a non-fixed-period are valid +sub is_module_valid { + my ($class, $system, $module_name) = @_; + + my $module = $system->getModule ($module_name); + my $fixed_period = $module->getWSAAssignment ('fixed_period'); + + if ($fixed_period eq '0') { + return 1; + } else { + return 0; + } +} + +sub run { + altera_avalon_timer->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_uart.pm b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_uart.pm new file mode 100644 index 0000000..abf48d7 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/altera_avalon_uart.pm @@ -0,0 +1,44 @@ +package altera_avalon_uart; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + ("uart0", "uart1", "uart2", "uart3") +} + +sub required_class_name { + "altera_avalon_uart"; +} + +sub base_address_cast { + "np_uart" +} + +sub print_prefix { + my ($class, $system) = @_; + + print "#ifndef __ASSEMBLY__\n"; + print "#include \n"; + print "#endif\n\n"; +} + +sub translate { + my $class = shift; + my ($system, $required_module_name, $module_name) = @_; + + $class->SUPER::translate (@_); + + if (!defined ($altera_avalon_uart::default_uart)) { + print "/* The default uart is always the first one found in the PTF file */\n"; + print "#define nasys_printf_uart na_$required_module_name\n\n"; + $altera_avalon_uart::default_uart = $required_module_name; + } + +} + +sub run { + altera_avalon_uart->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/mtip_avalon_10_100_mac.pm b/arch/nios2nommu/scripts/nios2_system.h/mtip_avalon_10_100_mac.pm new file mode 100644 index 0000000..fdd727b --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/mtip_avalon_10_100_mac.pm @@ -0,0 +1,18 @@ +package mtip_avalon_10_100_mac; + +use base qw(BasicModule); +use strict; + +sub required_class_name { + "mtip_avalon_10_100_mac"; +} + +sub required_module_names { + "mtip_mac" +} + +sub run { + mtip_avalon_10_100_mac->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_dm9000.pm b/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_dm9000.pm new file mode 100644 index 0000000..5985c2f --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_dm9000.pm @@ -0,0 +1,18 @@ +package mtx_avalon_dm9000; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + "dm9000" +} + +sub required_class_name { + "mtx_avalon_dm9000" +} + +sub run { + mtx_avalon_dm9000->run2(@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_isp1161a1.pm b/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_isp1161a1.pm new file mode 100644 index 0000000..e70ffa3 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/mtx_avalon_isp1161a1.pm @@ -0,0 +1,18 @@ +package mtx_avalon_isp1161a1; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + "usb" +} + +sub required_class_name { + "mtx_avalon_isp1161a1"; +} + +sub run { + mtx_avalon_isp1161a1->run2(@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/opencores_ethernet_mac.pm b/arch/nios2nommu/scripts/nios2_system.h/opencores_ethernet_mac.pm new file mode 100644 index 0000000..7b580b5 --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/opencores_ethernet_mac.pm @@ -0,0 +1,18 @@ +package opencores_ethernet_mac; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + "igor_mac" +} + +sub required_class_name { + "opencores_ethernet_mac" +} + +sub run { + opencores_ethernet_mac->run2 (@_); +} + +1; diff --git a/arch/nios2nommu/scripts/nios2_system.h/opencores_i2c.pm b/arch/nios2nommu/scripts/nios2_system.h/opencores_i2c.pm new file mode 100644 index 0000000..512d12c --- /dev/null +++ b/arch/nios2nommu/scripts/nios2_system.h/opencores_i2c.pm @@ -0,0 +1,18 @@ +package opencores_i2c; + +use base qw(BasicModule); +use strict; + +sub required_module_names { + ("i2c_0", "i2c_1") +} + +sub required_class_name { + "opencores_i2c"; +} + +sub run { + opencores_i2c->run2 (@_); +} + +1; diff --git a/include/asm-nios2nommu/ChangeLog b/include/asm-nios2nommu/ChangeLog new file mode 100644 index 0000000..94aaa27 --- /dev/null +++ b/include/asm-nios2nommu/ChangeLog @@ -0,0 +1,14 @@ +2004-06-29 Ken Hill + + * bitops.h (find_next_zero_bit): Fix problem with with masking for found_first + handling. The masking of the upper bits for size < 32 bits would set all + the bits to 1. Removing any zero's there may have been. + +2004-06-02 Ken Hill + + * processor.h (TASK_SIZE): Change na_sdram_end to nasys_program_mem_end to remove + dependancy on quartus memory component name. + + * page.h (PAGE_OFFSET): Change na_sdram to nasys_program_mem to remove + dependancy on quartus memory component name. + diff --git a/include/asm-nios2nommu/Kbuild b/include/asm-nios2nommu/Kbuild new file mode 100644 index 0000000..abf0368 --- /dev/null +++ b/include/asm-nios2nommu/Kbuild @@ -0,0 +1,4 @@ +include include/asm-generic/Kbuild.asm + +header-y += traps.h +header-y += io.h diff --git a/include/asm-nios2nommu/a.out.h b/include/asm-nios2nommu/a.out.h new file mode 100644 index 0000000..8297687 --- /dev/null +++ b/include/asm-nios2nommu/a.out.h @@ -0,0 +1,85 @@ +/* $Id: a.out.h,v 1.1 2006/07/05 06:20:25 gerg Exp $ */ +/* + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef __NIOS2NOMMU_A_OUT_H__ +#define __NIOS2NOMMU_A_OUT_H__ + +#define SPARC_PGSIZE 0x1000 /* Thanks to the sun4 architecture... */ +#define SEGMENT_SIZE SPARC_PGSIZE /* whee... */ + +struct exec { + unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */ + unsigned char a_toolversion:7; + unsigned char a_machtype; + unsigned short a_info; + unsigned long a_text; /* length of text, in bytes */ + unsigned long a_data; /* length of data, in bytes */ + unsigned long a_bss; /* length of bss, in bytes */ + unsigned long a_syms; /* length of symbol table, in bytes */ + unsigned long a_entry; /* where program begins */ + unsigned long a_trsize; + unsigned long a_drsize; +}; + +#define INIT_EXEC { \ + .a_dynamic = 0, \ + .a_toolversion = 0, \ + .a_machtype = 0, \ + .a_info = 0, \ + .a_text = 0, \ + .a_data = 0, \ + .a_bss = 0, \ + .a_syms = 0, \ + .a_entry = 0, \ + .a_trsize = 0, \ + .a_drsize = 0, \ +} + +/* Where in the file does the text information begin? */ +#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec)) + +/* Where do the Symbols start? */ +#define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \ + (x).a_data + (x).a_trsize + \ + (x).a_drsize) + +/* Where does text segment go in memory after being loaded? */ +#define N_TXTADDR(x) (((N_MAGIC(x) == ZMAGIC) && \ + ((x).a_entry < SPARC_PGSIZE)) ? \ + 0 : SPARC_PGSIZE) + +/* And same for the data segment.. */ +#define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \ + (N_TXTADDR(x) + (x).a_text) \ + : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) + +#define N_TRSIZE(a) ((a).a_trsize) +#define N_DRSIZE(a) ((a).a_drsize) +#define N_SYMSIZE(a) ((a).a_syms) + +#ifdef __KERNEL__ + +#define STACK_TOP TASK_SIZE + +#endif + +#endif /* __NIOS2NOMMU_A_OUT_H__ */ diff --git a/include/asm-nios2nommu/altera_juart.h b/include/asm-nios2nommu/altera_juart.h new file mode 100644 index 0000000..da6320d --- /dev/null +++ b/include/asm-nios2nommu/altera_juart.h @@ -0,0 +1,36 @@ +/*------------------------------------------------------------------------ + * + * linux/drivers/serial/altera_juart.h + * + * Driver for Altera JTAG UART core with Avalon interface + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * History: + * Jun/20/2005 DGT Microtronix Datacom NiosII + * + -----------------------------------------------------------------------*/ + +#ifndef _ALTERA_JUART_H_ + #define _ALTERA_JUART_H_ + + /* jtag uart details needed outside of the driver itself: */ + /* by: arch/kernel/start.c - boot time error message(s) */ + + void jtaguart_console_write + ( struct console *co, + const char *s, + unsigned int count); + +#endif /* _ALTERA_JUART_H_ */ diff --git a/include/asm-nios2nommu/asm-macros.h b/include/asm-nios2nommu/asm-macros.h new file mode 100644 index 0000000..9dda7cd --- /dev/null +++ b/include/asm-nios2nommu/asm-macros.h @@ -0,0 +1,331 @@ +/* + * Macro used to simplify coding multi-line assembler. + * Some of the bit test macro can simplify down to one line + * depending on the mask value. + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +/* + * ANDs reg2 with mask and places the result in reg1. + * + * You cannnot use the same register for reg1 & reg2. + */ + +.macro ANDI32 reg1,reg2,mask + .if \mask & 0xffff + .if \mask & 0xffff0000 + movhi \reg1,%hi(\mask) + movui \reg1,%lo(\mask) + and \reg1,\reg1,\reg2 + .else + andi \reg1,\reg2,%lo(\mask) + .endif + .else + andhi \reg1,\reg2,%hi(\mask) + .endif +.endm + +/* + * ORs reg2 with mask and places the result in reg1. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro ORI32 reg1,reg2,mask + .if \mask & 0xffff + .if \mask & 0xffff0000 + orhi \reg1,\reg2,%hi(\mask) + ori \reg1,\reg2,%lo(\mask) + .else + ori \reg1,\reg2,%lo(\mask) + .endif + .else + orhi \reg1,\reg2,%hi(\mask) + .endif +.endm + +/* + * XORs reg2 with mask and places the result in reg1. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro XORI32 reg1,reg2,mask + .if \mask & 0xffff + .if \mask & 0xffff0000 + xorhi \reg1,\reg2,%hi(\mask) + xori \reg1,\reg1,%lo(\mask) + .else + xori \reg1,\reg2,%lo(\mask) + .endif + .else + xorhi \reg1,\reg2,%hi(\mask) + .endif +.endm + +/* + * This is a support macro for BTBZ & BTBNZ. It checks + * the bit to make sure it is valid 32 value. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro BT reg1,reg2,bit +.if \bit > 31 + .err +.else + .if \bit < 16 + andi \reg1,\reg2,(1 << \bit) + .else + andhi \reg1,\reg2,(1 << (\bit - 16)) + .endif +.endif +.endm + +/* + * Tests the bit in reg2 and branches to label if the + * bit is zero. The result of the bit test is stored in reg1. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro BTBZ reg1,reg2,bit,label + BT \reg1,\reg2,\bit + beq \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and branches to label if the + * bit is non-zero. The result of the bit test is stored in reg1. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro BTBNZ reg1,reg2,bit,label + BT \reg1,\reg2,\bit + bne \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then compliments the bit in reg2. + * The result of the bit test is stored in reg1. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTC reg1,reg2,bit +.if \bit > 31 + .err +.else + .if \bit < 16 + andi \reg1,\reg2,(1 << \bit) + xori \reg2,\reg2,(1 << \bit) + .else + andhi \reg1,\reg2,(1 << (\bit - 16)) + xorhi \reg2,\reg2,(1 << (\bit - 16)) + .endif +.endif +.endm + +/* + * Tests the bit in reg2 and then sets the bit in reg2. + * The result of the bit test is stored in reg1. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTS reg1,reg2,bit +.if \bit > 31 + .err +.else + .if \bit < 16 + andi \reg1,\reg2,(1 << \bit) + ori \reg2,\reg2,(1 << \bit) + .else + andhi \reg1,\reg2,(1 << (\bit - 16)) + orhi \reg2,\reg2,(1 << (\bit - 16)) + .endif +.endif +.endm + +/* + * Tests the bit in reg2 and then resets the bit in reg2. + * The result of the bit test is stored in reg1. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTR reg1,reg2,bit +.if \bit > 31 + .err +.else + .if \bit < 16 + andi \reg1,\reg2,(1 << \bit) + andi \reg2,\reg2,%lo(~(1 << \bit)) + .else + andhi \reg1,\reg2,(1 << (\bit - 16)) + andhi \reg2,\reg2,%lo(~(1 << (\bit - 16))) + .endif +.endif +.endm + +/* + * Tests the bit in reg2 and then compliments the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTCBZ reg1,reg2,bit,label + BTC \reg1,\reg2,\bit + beq \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then compliments the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was non-zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTCBNZ reg1,reg2,bit,label + BTC \reg1,\reg2,\bit + bne \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then sets the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTSBZ reg1,reg2,bit,label + BTS \reg1,\reg2,\bit + beq \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then sets the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was non-zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTSBNZ reg1,reg2,bit,label + BTS \reg1,\reg2,\bit + bne \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then resets the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTRBZ reg1,reg2,bit,label + BTR \reg1,\reg2,\bit + bne \reg1,r0,\label +.endm + +/* + * Tests the bit in reg2 and then resets the bit in reg2. + * The result of the bit test is stored in reg1. If the + * original bit was non-zero it branches to label. + * + * It is NOT safe to use the same register for reg1 & reg2. + */ + +.macro BTRBNZ reg1,reg2,bit,label + BTR \reg1,\reg2,\bit + bne \reg1,r0,\label +.endm + +/* + * Tests the bits in mask against reg2 stores the result in reg1. + * If the all the bits in the mask are zero it branches to label. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro TSTBZ reg1,reg2,mask,label + ANDI32 \reg1,\reg2,\mask + beq \reg1,r0,\label +.endm + +/* + * Tests the bits in mask against reg2 stores the result in reg1. + * If the any of the bits in the mask are 1 it branches to label. + * + * It is safe to use the same register for reg1 & reg2. + */ + +.macro TSTBNZ reg1,reg2,mask,label + ANDI32 \reg1,\reg2,\mask + bne \reg1,r0,\label +.endm + +/* + * Pushes reg onto the stack. + */ + +.macro PUSH reg + addi sp,sp,-4 + stw \reg,0(sp) +.endm + +/* + * Pops the top of the stack into reg. + */ + +.macro POP reg + ldw \reg,0(sp) + addi sp,sp,4 +.endm + +/* + * Clears reg + */ + +.macro CLR reg + mov \reg,r0 +.endm + +/* + * The preprocessor macro does not work for + * the nios2 compiler. Undefine ENTRY and define + * a real assembler macro. + */ +#undef ENTRY +#define ENTRY(name) ASM_ENTRY name + +.macro ASM_ENTRY name +.globl \name +__ALIGN + \name: +.endm diff --git a/include/asm-nios2nommu/atomic.h b/include/asm-nios2nommu/atomic.h new file mode 100644 index 0000000..fb627de --- /dev/null +++ b/include/asm-nios2nommu/atomic.h @@ -0,0 +1,146 @@ +#ifndef __ASM_SH_ATOMIC_H +#define __ASM_SH_ATOMIC_H + +/* + * Atomic operations that C can't guarantee us. Useful for + * resource counting etc.. + * + */ + +typedef struct { volatile int counter; } atomic_t; + +#define ATOMIC_INIT(i) ( (atomic_t) { (i) } ) + +#define atomic_read(v) ((v)->counter) +#define atomic_set(v,i) ((v)->counter = (i)) + +#include + +/* + * To get proper branch prediction for the main line, we must branch + * forward to code at the end of this object's .text section, then + * branch back to restart the operation. + */ + +static __inline__ void atomic_add(int i, atomic_t * v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v += i; + local_irq_restore(flags); +} + +static __inline__ void atomic_sub(int i, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v -= i; + local_irq_restore(flags); +} + +static __inline__ int atomic_add_return(int i, atomic_t * v) +{ + unsigned long temp, flags; + + local_irq_save(flags); + temp = *(long *)v; + temp += i; + *(long *)v = temp; + local_irq_restore(flags); + + return temp; +} + +#define atomic_add_negative(a, v) (atomic_add_return((a), (v)) < 0) + +static __inline__ int atomic_sub_return(int i, atomic_t * v) +{ + unsigned long temp, flags; + + local_irq_save(flags); + temp = *(long *)v; + temp -= i; + *(long *)v = temp; + local_irq_restore(flags); + + return temp; +} + +#define atomic_dec_return(v) atomic_sub_return(1,(v)) +#define atomic_inc_return(v) atomic_add_return(1,(v)) + +/* + * atomic_inc_and_test - increment and test + * @v: pointer of type atomic_t + * + * Atomically increments @v by 1 + * and returns true if the result is zero, or false for all + * other cases. + */ +#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) + +#define atomic_sub_and_test(i,v) (atomic_sub_return((i), (v)) == 0) +#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) + +#define atomic_inc(v) atomic_add(1,(v)) +#define atomic_dec(v) atomic_sub(1,(v)) + +static inline int atomic_cmpxchg(atomic_t *v, int old, int new) +{ + int ret; + unsigned long flags; + + local_irq_save(flags); + ret = v->counter; + if (likely(ret == old)) + v->counter = new; + local_irq_restore(flags); + + return ret; +} + +#define atomic_xchg(v, new) (xchg(&((v)->counter), new)) + +static inline int atomic_add_unless(atomic_t *v, int a, int u) +{ + int ret; + unsigned long flags; + + local_irq_save(flags); + ret = v->counter; + if (ret != u) + v->counter += a; + local_irq_restore(flags); + + return ret != u; +} +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + +static __inline__ void atomic_clear_mask(unsigned int mask, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v &= ~mask; + local_irq_restore(flags); +} + +static __inline__ void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + *(long *)v |= mask; + local_irq_restore(flags); +} + +/* Atomic operations are already serializing on SH */ +#define smp_mb__before_atomic_dec() barrier() +#define smp_mb__after_atomic_dec() barrier() +#define smp_mb__before_atomic_inc() barrier() +#define smp_mb__after_atomic_inc() barrier() + +#include +#endif /* __ASM_SH_ATOMIC_H */ diff --git a/include/asm-nios2nommu/auxvec.h b/include/asm-nios2nommu/auxvec.h new file mode 100644 index 0000000..fc21e4d --- /dev/null +++ b/include/asm-nios2nommu/auxvec.h @@ -0,0 +1,4 @@ +#ifndef __ASM_SH_AUXVEC_H +#define __ASM_SH_AUXVEC_H + +#endif /* __ASM_SH_AUXVEC_H */ diff --git a/include/asm-nios2nommu/bitops.h b/include/asm-nios2nommu/bitops.h new file mode 100644 index 0000000..7bf1862 --- /dev/null +++ b/include/asm-nios2nommu/bitops.h @@ -0,0 +1,11 @@ +#ifndef __ASM_NIOS2NOMMU_BITOPS_H +#define __ASM_NIOS2NOMMU_BITOPS_H + +#ifdef __KERNEL__ +#include +#include +#define smp_mb__before_clear_bit() barrier() +#define smp_mb__after_clear_bit() barrier() +#endif /* __KERNEL__ */ + +#endif /* __ASM_NIOS2NOMMU_BITOPS_H */ diff --git a/include/asm-nios2nommu/bootinfo.h b/include/asm-nios2nommu/bootinfo.h new file mode 100644 index 0000000..ee8c39e --- /dev/null +++ b/include/asm-nios2nommu/bootinfo.h @@ -0,0 +1,2 @@ + +/* Nothing for nios2nommu */ diff --git a/include/asm-nios2nommu/bug.h b/include/asm-nios2nommu/bug.h new file mode 100644 index 0000000..d99ab08 --- /dev/null +++ b/include/asm-nios2nommu/bug.h @@ -0,0 +1,4 @@ +#ifndef _MNIOS2NOMMU_BUG_H +#define _MNIOS2NOMMU_BUG_H +#include +#endif diff --git a/include/asm-nios2nommu/bugs.h b/include/asm-nios2nommu/bugs.h new file mode 100644 index 0000000..a0753eb --- /dev/null +++ b/include/asm-nios2nommu/bugs.h @@ -0,0 +1,40 @@ +#ifndef __ASM_NIOS_BUGS_H +#define __ASM_NIOS_BUGS_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/bugs.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 1994 Linus Torvalds + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* + * This is included by init/main.c to check for architecture-dependent bugs. + * + * Needs: + * void check_bugs(void); + */ + +static void check_bugs(void) +{ +} + +#endif diff --git a/include/asm-nios2nommu/byteorder.h b/include/asm-nios2nommu/byteorder.h new file mode 100644 index 0000000..960b6d3 --- /dev/null +++ b/include/asm-nios2nommu/byteorder.h @@ -0,0 +1,38 @@ +#ifndef __ASM_NIOS_BYTEORDER_H +#define __ASM_NIOS_BYTEORDER_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/byteorder.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#include + +#endif + diff --git a/include/asm-nios2nommu/cache.h b/include/asm-nios2nommu/cache.h new file mode 100644 index 0000000..82bbd14 --- /dev/null +++ b/include/asm-nios2nommu/cache.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef __ARCH_NIOS2NOMMU_CACHE_H +#define __ARCH_NIOS2NOMMU_CACHE_H + +#include + +/* bytes per L1 cache line */ +#define L1_CACHE_BYTES nasys_icache_line_size /* 32, this need to be at least 1 */ +#define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) +#define L1_CACHE_SHIFT 5 + + +#define __cacheline_aligned +#define ____cacheline_aligned + +#endif diff --git a/include/asm-nios2nommu/cachectl.h b/include/asm-nios2nommu/cachectl.h new file mode 100644 index 0000000..39d7d9d --- /dev/null +++ b/include/asm-nios2nommu/cachectl.h @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2NOMMU_CACHECTL_H +#define _NIOS2NOMMU_CACHECTL_H + +/* Definitions for the cacheflush system call. */ + +#define FLUSH_SCOPE_LINE 1 /* Flush a cache line */ +#define FLUSH_SCOPE_PAGE 2 /* Flush a page */ +#define FLUSH_SCOPE_ALL 3 /* Flush the whole cache -- superuser only */ + +#define FLUSH_CACHE_DATA 1 /* Writeback and flush data cache */ +#define FLUSH_CACHE_INSN 2 /* Flush instruction cache */ +#define FLUSH_CACHE_BOTH 3 /* Flush both caches */ + +#endif /* _NIOS2NOMMU_CACHECTL_H */ diff --git a/include/asm-nios2nommu/cacheflush.h b/include/asm-nios2nommu/cacheflush.h new file mode 100644 index 0000000..4543201 --- /dev/null +++ b/include/asm-nios2nommu/cacheflush.h @@ -0,0 +1,59 @@ +#ifndef _NIOS2NOMMU_CACHEFLUSH_H +#define _NIOS2NOMMU_CACHEFLUSH_H + +/* + * Ported from m68knommu. + * + * (C) Copyright 2003, Microtronix Datacom Ltd. + * (C) Copyright 2000-2002, Greg Ungerer + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include + +extern void cache_push (unsigned long vaddr, int len); +extern void dcache_push (unsigned long vaddr, int len); +extern void icache_push (unsigned long vaddr, int len); +extern void cache_push_all (void); +extern void cache_clear (unsigned long paddr, int len); + +#define flush_cache_all() __flush_cache_all() +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) cache_push(start, end - start) +#define flush_cache_page(vma, vmaddr) do { } while (0) +#define flush_dcache_range(start,end) dcache_push(start, end - start) +#define flush_dcache_page(page) do { } while (0) +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) +#define flush_icache_range(start,end) cache_push(start, end - start) +#define flush_icache_page(vma,pg) do { } while (0) +#define flush_icache_user_range(vma,pg,adr,len) do { } while (0) + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) + + +extern inline void __flush_cache_all(void) +{ + cache_push_all(); +} + +#endif /* _NIOS2NOMMU_CACHEFLUSH_H */ diff --git a/include/asm-nios2nommu/checksum.h b/include/asm-nios2nommu/checksum.h new file mode 100644 index 0000000..1f6879e --- /dev/null +++ b/include/asm-nios2nommu/checksum.h @@ -0,0 +1,320 @@ +#ifndef __NIOS2_CHECKSUM_H +#define __NIOS2_CHECKSUM_H + +/* checksum.h: IP/UDP/TCP checksum routines on the NIOS. + * + * Copyright(C) 1995 Linus Torvalds + * Copyright(C) 1995 Miguel de Icaza + * Copyright(C) 1996 David S. Miller + * Copyright(C) 2001 Ken Hill + * Copyright(C) 2004 Microtronix Datacom Ltd. + * + * derived from: + * Alpha checksum c-code + * ix86 inline assembly + * Spar nommu + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* + * computes the checksum of the TCP/UDP pseudo-header + * returns a 16-bit checksum, already complemented + */ + +extern inline unsigned short csum_tcpudp_magic(unsigned long saddr, + unsigned long daddr, + unsigned short len, + unsigned short proto, + unsigned int sum) +{ + barrier(); + __asm__ __volatile__( +" add %0, %3, %0\n" +" bgeu %0, %3, 1f\n" +" addi %0, %0, 1\n" +"1: add %0, %4, %0\n" +" bgeu %0, %4, 1f\n" +" addi %0, %0, 1\n" +"1: add %0, %5, %0\n" +" bgeu %0, %5, 1f\n" +" addi %0, %0, 1\n" +"1:\n" +/* + We need the carry from the addition of 16-bit + significant addition, so we zap out the low bits + in one half, zap out the high bits in another, + shift them both up to the top 16-bits of a word + and do the carry producing addition, finally + shift the result back down to the low 16-bits. + + Actually, we can further optimize away two shifts + because we know the low bits of the original + value will be added to zero-only bits so cannot + affect the addition result nor the final carry + bit. +*/ +" slli %1,%0, 16\n" /* Need a copy to fold with */ + /* Bring the LOW 16 bits up */ +" add %0, %1, %0\n" /* add and set carry, neat eh? */ +" cmpltu r15, %0, %1\n" /* get remaining carry bit */ +" srli %0, %0, 16\n" /* shift back down the result */ +" add %0, %0, r15\n" +" nor %0, %0, %0\n" /* negate */ + : "=&r" (sum), "=&r" (saddr) + : "0" (sum), "1" (saddr), "r" (ntohl(len+proto)), "r" (daddr) + : "r15"); + return ((unsigned short) sum); + barrier(); +} + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + + extern inline unsigned short from32to16(unsigned long x) + { + barrier(); + __asm__ __volatile__( + "add %0, %1, %0\n" + "cmpltu r15, %0, %1\n" + "srli %0, %0, 16\n" + "add %0, %0, r15\n" + : "=r" (x) + : "r" (x << 16), "0" (x) + : "r15"); + return x; + barrier(); + } + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +extern inline unsigned long do_csum(const unsigned char * buff, int len) +{ + int odd, count; + unsigned long result = 0; + + barrier(); + if (len <= 0) + goto out; + odd = 1 & (unsigned long) buff; + if (odd) { +////result = *buff; // dgt: Big endian + result = *buff << 8; // dgt: Little endian + + len--; + buff++; + } + count = len >> 1; /* nr of 16-bit words.. */ + if (count) { + if (2 & (unsigned long) buff) { + result += *(unsigned short *) buff; + count--; + len -= 2; + buff += 2; + } + count >>= 1; /* nr of 32-bit words.. */ + if (count) { + unsigned long carry = 0; + do { + unsigned long w = *(unsigned long *) buff; + count--; + buff += 4; + result += carry; + result += w; + carry = (w > result); + } while (count); + result += carry; + result = (result & 0xffff) + (result >> 16); + } + if (len & 2) { + result += *(unsigned short *) buff; + buff += 2; + } + } + if (len & 1) + result += *buff; /* This is little machine, byte is right */ + result = from32to16(result); + if (odd) + result = ((result >> 8) & 0xff) | ((result & 0xff) << 8); +out: + return result; + barrier(); + } + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +/* ihl is always 5 or greater, almost always is 5, iph is always word + * aligned but can fail to be dword aligned very often. + */ + + extern inline unsigned short ip_fast_csum(const unsigned char *iph, unsigned int ihl) + { + unsigned int sum; + + barrier(); + __asm__ __volatile__( +" andi r8, %1, 2\n" /* Remember original alignment */ +" ldw %0, (%1)\n" /* 16 or 32 bit boundary */ +" beq r8, r0, 1f\n" /* Aligned on 32 bit boundary, go */ +" srli %0, %0, 16\n" /* Get correct 16 bits */ +" addi %2, %2, -1\n" /* Take off for 4 bytes, pickup last 2 at end */ +" addi %1, %1, 2\n" /* Adjust pointer to 32 bit boundary */ +" br 2f\n" +"1:\n" +" addi %2, %2, -1\n" +" addi %1, %1, 4\n" /* Bump ptr a long word */ +"2:\n" +" ldw r9, (%1)\n" +"1:\n" +" add %0, r9, %0\n" +" bgeu %0, r9, 2f\n" +" addi %0, %0, 1\n" +"2:\n" +" addi %1, %1, 4\n" +" addi %2, %2, -1\n" +" ldw r9, (%1)\n" +" bne %2, r0, 1b\n" +" beq r8, r0, 1f\n" /* 32 bit boundary time to leave */ +" srli r9, r9, 16\n" /* 16 bit boundary, get correct 16 bits */ +" add %0, r9, %0\n" +" bgeu %0, r9, 1f\n" +" addi %0, %0, 1\n" +"1:\n" +" slli %2, %0, 16\n" +" add %0, %2, %0\n" +" cmpltu r8, %0, %2\n" +" srli %0, %0, 16\n" +" add %0, %0, r8\n" +" nor %0, %0, %0\n" + : "=&r" (sum), "=&r" (iph), "=&r" (ihl) + : "1" (iph), "2" (ihl) + : "r8", "r9"); + return sum; + barrier(); + } + +/*these 2 functions are now in checksum.c */ +unsigned int csum_partial(const unsigned char * buff, int len, unsigned int sum); +unsigned int csum_partial_copy(const char *src, char *dst, int len, int sum); + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + +/* + * the same as csum_partial_copy, but copies from user space. + * + * here even more important to align src and dst on a 32-bit (or even + * better 64-bit) boundary + */ +extern inline unsigned int +csum_partial_copy_from_user(const char *src, char *dst, int len, int sum, int *csum_err) +{ + barrier(); + if (csum_err) *csum_err = 0; + memcpy(dst, src, len); + return csum_partial(dst, len, sum); + barrier(); +} + +#define csum_partial_copy_nocheck(src, dst, len, sum) \ + csum_partial_copy ((src), (dst), (len), (sum)) + + +/* + * this routine is used for miscellaneous IP-like checksums, mainly + * in icmp.c + */ + +extern inline unsigned short ip_compute_csum(unsigned char * buff, int len) +{ + barrier(); + return ~from32to16(do_csum(buff,len)); + barrier(); +} + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +#define csum_partial_copy_fromuser(s, d, l, w) \ + csum_partial_copy((char *) (s), (d), (l), (w)) + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +/* + * Fold a partial checksum without adding pseudo headers + */ +extern __inline__ unsigned int csum_fold(unsigned int sum) +{ + barrier(); + __asm__ __volatile__( + "add %0, %1, %0\n" + "cmpltu r8, %0, %1\n" + "srli %0, %0, 16\n" + "add %0, %0, r8\n" + "nor %0, %0, %0\n" + : "=r" (sum) + : "r" (sum << 16), "0" (sum) + : "r8"); + return sum; + barrier(); +} + + +/*- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ + + +extern __inline__ unsigned long csum_tcpudp_nofold(unsigned long saddr, + unsigned long daddr, + unsigned short len, + unsigned short proto, + unsigned int sum) +{ + barrier(); + __asm__ __volatile__( + "add %0, %1, %0\n" + "cmpltu r8, %0, %1\n" + "add %0, %0, r8\n" /* add carry */ + "add %0, %2, %0\n" + "cmpltu r8, %0, %2\n" + "add %0, %0, r8\n" /* add carry */ + "add %0, %3, %0\n" + "cmpltu r8, %0, %3\n" + "add %0, %0, r8\n" /* add carry */ + : "=r" (sum), "=r" (saddr) + : "r" (daddr), "r" ( (ntohs(len)<<16) + (proto*256) ), + "0" (sum), + "1" (saddr) + : "r8"); + + return sum; + barrier(); +} + + +#endif /* (__NIOS2_CHECKSUM_H) */ diff --git a/include/asm-nios2nommu/cprefix.h b/include/asm-nios2nommu/cprefix.h new file mode 100644 index 0000000..4983211 --- /dev/null +++ b/include/asm-nios2nommu/cprefix.h @@ -0,0 +1,38 @@ +/* cprefix.h: This file is included by assembly source which needs + * to know what the c-label prefixes are. The newer versions + * of cpp that come with gcc predefine such things to help + * us out. The reason this stuff is needed is to make + * solaris compiles of the kernel work. + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef __NIOS2_CPREFIX_H +#define __NIOS2_CPREFIX_H + +#define C_LABEL_PREFIX + +#define CONCAT(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a##b + +#define C_LABEL(name) CONCAT(C_LABEL_PREFIX, name) + +#endif /* !(__NIOS2_CPREFIX_H) */ diff --git a/include/asm-nios2nommu/cpumask.h b/include/asm-nios2nommu/cpumask.h new file mode 100644 index 0000000..86fb365 --- /dev/null +++ b/include/asm-nios2nommu/cpumask.h @@ -0,0 +1,28 @@ +/* + * All rights reserved. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _ASM_NIOS2NOMMU_CPUMASK_H +#define _ASM_NIOS2NOMMU_CPUMASK_H + +#include + +#endif /* _ASM_NIOS2NOMMU_CPUMASK_H */ diff --git a/include/asm-nios2nommu/cputime.h b/include/asm-nios2nommu/cputime.h new file mode 100644 index 0000000..370e4f2 --- /dev/null +++ b/include/asm-nios2nommu/cputime.h @@ -0,0 +1,31 @@ +/* + * cputime.h + * (C) Copyright 2004, Microtronix Datacom Ltd. + * + * Taken from m68knommu + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2NOMMU_CPUTIME_H +#define __NIOS2NOMMU_CPUTIME_H + +#include + +#endif /* __NIOS@NOMMU_CPUTIME_H */ diff --git a/include/asm-nios2nommu/current.h b/include/asm-nios2nommu/current.h new file mode 100644 index 0000000..5ac1dbc --- /dev/null +++ b/include/asm-nios2nommu/current.h @@ -0,0 +1,39 @@ +#ifndef _NIOS2NOMMU_CURRENT_H +#define _NIOS2NOMMU_CURRENT_H +/* + * current.h + * (C) Copyright 2000, Lineo, David McCullough + * (C) Copyright 2002, Greg Ungerer (gerg@snapgear.com) + * (C) Copyright 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include + +struct task_struct; + +static inline struct task_struct *get_current(void) +{ + return(current_thread_info()->task); +} + +#define current get_current() + +#endif /* _NIOS2NOMMU_CURRENT_H */ diff --git a/include/asm-nios2nommu/delay.h b/include/asm-nios2nommu/delay.h new file mode 100644 index 0000000..da0a184 --- /dev/null +++ b/include/asm-nios2nommu/delay.h @@ -0,0 +1,96 @@ +#ifndef _NIOS_DELAY_H +#define _NIOS_DELAY_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/delay.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +extern __inline__ void __delay(unsigned long loops) +{ + int dummy; + + __asm__ __volatile__( + "1: \n\t" + " beq %0,zero,2f\n\t" + " addi %0, %0, -1\n\t" + " br 1b\n\t" + "2: \n\t" + + : "=r" (dummy) /* Need output for optimizer */ + + : "0" (loops) /* %0 Input */ + ); +} + +/* + * Note that 19 * 226 == 4294 ==~ 2^32 / 10^6, so + * loops = (4294 * usecs * loops_per_jiffy * HZ) / 2^32. + * + * The mul instruction gives us loops = (a * b) / 2^32. + * We choose a = usecs * 19 * HZ and b = loops_per_jiffy * 226 + * because this lets us support a wide range of HZ and + * loops_per_jiffy values without either a or b overflowing 2^32. + * Thus we need usecs * HZ <= (2^32 - 1) / 19 = 226050910 and + * loops_per_jiffy <= (2^32 - 1) / 226 = 19004280 + * (which corresponds to ~3800 bogomips at HZ = 100). + * -- paulus + */ +#define __MAX_UDELAY (226050910UL/HZ) /* maximum udelay argument */ +#define __MAX_NDELAY (4294967295UL/HZ) /* maximum ndelay argument */ + +extern unsigned long loops_per_jiffy; + +extern __inline__ void __udelay(unsigned int x) +{ + unsigned int loops; + + __asm__("mulxuu %0,%1,%2" : "=r" (loops) : + "r" (x), "r" (loops_per_jiffy * 226)); + __delay(loops); +} + +extern __inline__ void __ndelay(unsigned int x) +{ + unsigned int loops; + + __asm__("mulxuu %0,%1,%2" : "=r" (loops) : + "r" (x), "r" (loops_per_jiffy * 5)); + __delay(loops); +} + +extern void __bad_udelay(void); /* deliberately undefined */ +extern void __bad_ndelay(void); /* deliberately undefined */ + +#define udelay(n) (__builtin_constant_p(n)? \ + ((n) > __MAX_UDELAY? __bad_udelay(): __udelay((n) * (19 * HZ))) : \ + __udelay((n) * (19 * HZ))) + +#define ndelay(n) (__builtin_constant_p(n)? \ + ((n) > __MAX_NDELAY? __bad_ndelay(): __ndelay((n) * HZ)) : \ + __ndelay((n) * HZ)) + +#define muldiv(a, b, c) (((a)*(b))/(c)) + +#endif /* defined(_NIOS_DELAY_H) */ diff --git a/include/asm-nios2nommu/device.h b/include/asm-nios2nommu/device.h new file mode 100644 index 0000000..d8f9872 --- /dev/null +++ b/include/asm-nios2nommu/device.h @@ -0,0 +1,7 @@ +/* + * Arch specific extensions to struct device + * + * This file is released under the GPLv2 + */ +#include + diff --git a/include/asm-nios2nommu/div64.h b/include/asm-nios2nommu/div64.h new file mode 100644 index 0000000..68d72e4 --- /dev/null +++ b/include/asm-nios2nommu/div64.h @@ -0,0 +1,31 @@ +#ifndef __ASMNIOS_DIV64_H +#define __ASMNIOS_DIV64_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/div64.h + * + * Derived from m68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#endif + diff --git a/include/asm-nios2nommu/dma-mapping.h b/include/asm-nios2nommu/dma-mapping.h new file mode 100644 index 0000000..6289370 --- /dev/null +++ b/include/asm-nios2nommu/dma-mapping.h @@ -0,0 +1,79 @@ +#ifndef _ASM_DMA_MAPPING_H +#define _ASM_DMA_MAPPING_H + +#include +#include + +void *dma_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + +void dma_free_noncoherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle); + +void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag); + +void dma_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle); + +extern dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size, + enum dma_data_direction direction); +extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction direction); +extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction direction); +extern dma_addr_t dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, enum dma_data_direction direction); +extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address, + size_t size, enum dma_data_direction direction); +extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nhwentries, enum dma_data_direction direction); +extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction direction); +extern void dma_sync_single_for_device(struct device *dev, + dma_addr_t dma_handle, size_t size, enum dma_data_direction direction); +extern void dma_sync_single_range_for_cpu(struct device *dev, + dma_addr_t dma_handle, unsigned long offset, size_t size, + enum dma_data_direction direction); +extern void dma_sync_single_range_for_device(struct device *dev, + dma_addr_t dma_handle, unsigned long offset, size_t size, + enum dma_data_direction direction); +extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction direction); +extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction direction); +extern int dma_mapping_error(dma_addr_t dma_addr); +extern int dma_supported(struct device *dev, u64 mask); + +static inline int +dma_set_mask(struct device *dev, u64 mask) +{ + if(!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + + *dev->dma_mask = mask; + + return 0; +} + +static inline int +dma_get_cache_alignment(void) +{ + /* XXX Largest on any MIPS */ + return 128; +} + +extern int dma_is_consistent(dma_addr_t dma_addr); + +extern void dma_cache_sync(void *vaddr, size_t size, + enum dma_data_direction direction); + +// #define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY +// +// extern int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr, +// dma_addr_t device_addr, size_t size, int flags); +// extern void dma_release_declared_memory(struct device *dev); +// extern void * dma_mark_declared_memory_occupied(struct device *dev, +// dma_addr_t device_addr, size_t size); + +#endif /* _ASM_DMA_MAPPING_H */ diff --git a/include/asm-nios2nommu/dma.h b/include/asm-nios2nommu/dma.h new file mode 100644 index 0000000..ea098d5 --- /dev/null +++ b/include/asm-nios2nommu/dma.h @@ -0,0 +1,63 @@ +/* $Id: dma.h,v 1.1 2006/07/05 06:20:25 gerg Exp $ + * + * Copyright 2004 (C) Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _ASM_NIOS2_DMA_H +#define _ASM_NIOS2_DMA_H + +#include +#include + +#define MAX_DMA_ADDRESS (LINUX_SDRAM_END) + +int request_dma(unsigned int, const char *); +void free_dma(unsigned int); +void enable_dma(unsigned int dmanr); +void disable_dma(unsigned int dmanr); +void set_dma_count(unsigned int dmanr, unsigned int count); +int get_dma_residue(unsigned int dmanr); +void nios2_set_dma_data_width(unsigned int dmanr, unsigned int width); + +void nios2_set_dma_handler(unsigned int dmanr, int (*handler)(void*, int), void* user); +int nios2_request_dma(const char *); + +void nios2_set_dma_mode(unsigned int dmanr, unsigned int mode); +void nios2_set_dma_rcon(unsigned int dmanr, unsigned int set); +void nios2_set_dma_wcon(unsigned int dmanr, unsigned int set); +void nios2_set_dma_raddr(unsigned int dmanr, unsigned int a); +void nios2_set_dma_waddr(unsigned int dmanr, unsigned int a); + +static inline unsigned long claim_dma_lock(void) +{ +} + +static inline void release_dma_lock(unsigned long flags) +{ +} + +#ifdef CONFIG_PCI +extern int isa_dma_bridge_buggy; +#else +#define isa_dma_bridge_buggy (0) +#endif + +#endif /* !(_ASM_NIOS2_DMA_H) */ diff --git a/include/asm-nios2nommu/elf.h b/include/asm-nios2nommu/elf.h new file mode 100644 index 0000000..94b2ac0 --- /dev/null +++ b/include/asm-nios2nommu/elf.h @@ -0,0 +1,140 @@ +#ifndef __NIOS2_ELF_H +#define __NIOS2_ELF_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/elf.h + * + * Nio2 ELF relocation types + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Jan/20/2004 dgt NiosII + * Mar/18/2004 xwt NiosII relocation types added + * + ---------------------------------------------------------------------*/ + +#include +#include + +#define R_NIOS2_NONE 0 +#define R_NIOS2_S16 1 +#define R_NIOS2_U16 2 +#define R_NIOS2_PCREL16 3 +#define R_NIOS2_CALL26 4 +#define R_NIOS2_IMM5 5 +#define R_NIOS2_CACHE_OPX 6 +#define R_NIOS2_IMM6 7 +#define R_NIOS2_IMM8 8 +#define R_NIOS2_HI16 9 +#define R_NIOS2_LO16 10 +#define R_NIOS2_HIADJ16 11 +#define R_NIOS2_BFD_RELOC_32 12 +#define R_NIOS2_BFD_RELOC_16 13 +#define R_NIOS2_BFD_RELOC_8 14 +#define R_NIOS2_GPREL 15 +#define R_NIOS2_GNU_VTINHERIT 16 +#define R_NIOS2_GNU_VTENTRY 17 +#define R_NIOS2_UJMP 18 +#define R_NIOS2_CJMP 19 +#define R_NIOS2_CALLR 20 +#define R_NIOS2_ALIGN 21 +/* Keep this the last entry. */ +#define R_NIOS2_NUM 22 + +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef unsigned long elf_fpregset_t; + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) \ + ((x)->e_machine == EM_ALTERA_NIOS2) + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_ALTERA_NIOS2 + +#define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 4096 + +/* This is the location that an ET_DYN program is loaded if exec'ed. Typical + use of this is to invoke "./ld.so someprog" to test out a new version of + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +#define ELF_ET_DYN_BASE 0xD0000000UL + +/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is + now struct_user_regs, they are different) */ + +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + /* Bleech. */ \ + pr_reg[0] = regs->r1; \ + pr_reg[1] = regs->r2; \ + pr_reg[2] = regs->r3; \ + pr_reg[3] = regs->r4; \ + pr_reg[4] = regs->r5; \ + pr_reg[5] = regs->r6; \ + pr_reg[6] = regs->r7; \ + pr_reg[7] = regs->r8; \ + pr_reg[8] = regs->r9; \ + pr_reg[9] = regs->r10; \ + pr_reg[10] = regs->r11; \ + pr_reg[11] = regs->r12; \ + pr_reg[12] = regs->r13; \ + pr_reg[13] = regs->r14; \ + pr_reg[14] = regs->r15; \ + pr_reg[23] = regs->sp; \ + pr_reg[26] = regs->estatus; \ + { \ + struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ + pr_reg[15] = sw->r16; \ + pr_reg[16] = sw->r17; \ + pr_reg[17] = sw->r18; \ + pr_reg[18] = sw->r19; \ + pr_reg[19] = sw->r20; \ + pr_reg[20] = sw->r21; \ + pr_reg[21] = sw->r22; \ + pr_reg[22] = sw->r23; \ + pr_reg[24] = sw->fp; \ + pr_reg[25] = sw->gp; \ + } + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. */ + +#define ELF_HWCAP (0) + +/* This yields a string that ld.so will use to load implementation + specific libraries for optimization. This is more specific in + intent than poking at uname or /proc/cpuinfo. */ + +#define ELF_PLATFORM (NULL) + +#ifdef __KERNEL__ +#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#endif + +#endif diff --git a/include/asm-nios2nommu/emergency-restart.h b/include/asm-nios2nommu/emergency-restart.h new file mode 100644 index 0000000..108d8c4 --- /dev/null +++ b/include/asm-nios2nommu/emergency-restart.h @@ -0,0 +1,6 @@ +#ifndef _ASM_EMERGENCY_RESTART_H +#define _ASM_EMERGENCY_RESTART_H + +#include + +#endif /* _ASM_EMERGENCY_RESTART_H */ diff --git a/include/asm-nios2nommu/entry.h b/include/asm-nios2nommu/entry.h new file mode 100644 index 0000000..4b1773f --- /dev/null +++ b/include/asm-nios2nommu/entry.h @@ -0,0 +1,187 @@ +/* + * Hacked from m68knommu port. + * + * Copyright(C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2NOMMU_ENTRY_H +#define __NIOS2NOMMU_ENTRY_H + +#ifdef __ASSEMBLY__ + +#include +#include +#include + +/* + * Stack layout in 'ret_from_exception': + * + * This allows access to the syscall arguments in registers r4-r8 + * + * 0(sp) - r8 + * 4(sp) - r9 + * 8(sp) - r10 + * C(sp) - r11 + * 10(sp) - r12 + * 14(sp) - r13 + * 18(sp) - r14 + * 1C(sp) - r15 + * 20(sp) - r1 + * 24(sp) - r2 + * 28(sp) - r3 + * 2C(sp) - r4 + * 30(sp) - r5 + * 34(sp) - r6 + * 38(sp) - r7 + * 3C(sp) - orig_r2 + * 40(sp) - ra + * 44(sp) - fp + * 48(sp) - sp + * 4C(sp) - gp + * 50(sp) - estatus + * 54(sp) - status_extension + * 58(sp) - ea + * + */ + +/* process bits for task_struct.flags */ +PF_TRACESYS_OFF = 3 +PF_TRACESYS_BIT = 5 +PF_PTRACED_OFF = 3 +PF_PTRACED_BIT = 4 +PF_DTRACE_OFF = 1 +PF_DTRACE_BIT = 5 + +LENOSYS = 38 + +/* + * This defines the normal kernel pt-regs layout. + * + */ + +/* + * Standard Nios2 interrupt entry and exit macros. + * Must be called with interrupts disabled. + */ +.macro SAVE_ALL + movia r24,status_extension // Read status extension + ldw r24,0(r24) + andi r24,r24,PS_S_ASM + bne r24,r0,1f // In supervisor mode, already on kernel stack + movia r24,_current_thread // Switch to current kernel stack + ldw r24,0(r24) // using the thread_info + addi r24,r24,THREAD_SIZE_ASM-PT_REGS_SIZE + stw sp,PT_SP(r24) // Save user stack before changing + mov sp,r24 + br 2f + +1: mov r24,sp + addi sp,sp,-PT_REGS_SIZE // Backup the kernel stack pointer + stw r24,PT_SP(sp) +2: stw r1,PT_R1(sp) + stw r2,PT_R2(sp) + stw r3,PT_R3(sp) + stw r4,PT_R4(sp) + stw r5,PT_R5(sp) + stw r6,PT_R6(sp) + stw r7,PT_R7(sp) + stw r8,PT_R8(sp) + stw r9,PT_R9(sp) + stw r10,PT_R10(sp) + stw r11,PT_R11(sp) + stw r12,PT_R12(sp) + stw r13,PT_R13(sp) + stw r14,PT_R14(sp) + stw r15,PT_R15(sp) + stw r2,PT_ORIG_R2(sp) + stw ra,PT_RA(sp) + stw fp,PT_FP(sp) + stw gp,PT_GP(sp) + rdctl r24,estatus + stw r24,PT_ESTATUS(sp) + movia r24,status_extension // Read status extension + ldw r1,0(r24) + stw r1,PT_STATUS_EXTENSION(sp) // Store user/supervisor status + ORI32 r1,r1,PS_S_ASM // Set supervisor mode + stw r1,0(r24) + stw ea,PT_EA(sp) +.endm + +.macro RESTORE_ALL + ldw r1,PT_STATUS_EXTENSION(sp) // Restore user/supervisor status + movia r24,status_extension + stw r1,0(r24) + ldw r1,PT_R1(sp) // Restore registers + ldw r2,PT_R2(sp) + ldw r3,PT_R3(sp) + ldw r4,PT_R4(sp) + ldw r5,PT_R5(sp) + ldw r6,PT_R6(sp) + ldw r7,PT_R7(sp) + ldw r8,PT_R8(sp) + ldw r9,PT_R9(sp) + ldw r10,PT_R10(sp) + ldw r11,PT_R11(sp) + ldw r12,PT_R12(sp) + ldw r13,PT_R13(sp) + ldw r14,PT_R14(sp) + ldw r15,PT_R15(sp) + ldw ra,PT_RA(sp) + ldw fp,PT_FP(sp) + ldw gp,PT_GP(sp) + ldw r24,PT_ESTATUS(sp) + wrctl estatus,r24 + ldw ea,PT_EA(sp) + ldw sp,PT_SP(sp) // Restore sp last +.endm + +.macro SAVE_SWITCH_STACK + addi sp,sp,-SWITCH_STACK_SIZE + stw r16,SW_R16(sp) + stw r17,SW_R17(sp) + stw r18,SW_R18(sp) + stw r19,SW_R19(sp) + stw r20,SW_R20(sp) + stw r21,SW_R21(sp) + stw r22,SW_R22(sp) + stw r23,SW_R23(sp) + stw fp,SW_FP(sp) + stw gp,SW_GP(sp) + stw ra,SW_RA(sp) +.endm + +.macro RESTORE_SWITCH_STACK + ldw r16,SW_R16(sp) + ldw r17,SW_R17(sp) + ldw r18,SW_R18(sp) + ldw r19,SW_R19(sp) + ldw r20,SW_R20(sp) + ldw r21,SW_R21(sp) + ldw r22,SW_R22(sp) + ldw r23,SW_R23(sp) + ldw fp,SW_FP(sp) + ldw gp,SW_GP(sp) + ldw ra,SW_RA(sp) + addi sp,sp,SWITCH_STACK_SIZE +.endm + +#endif /* __ASSEMBLY__ */ +#endif /* __NIOS2NOMMU_ENTRY_H */ diff --git a/include/asm-nios2nommu/errno.h b/include/asm-nios2nommu/errno.h new file mode 100644 index 0000000..c2caf21 --- /dev/null +++ b/include/asm-nios2nommu/errno.h @@ -0,0 +1,6 @@ +#ifndef _NIOS2NOMMU_ERRNO_H +#define _NIOS2NOMMU_ERRNO_H + +#include + +#endif /* _NIOS2NOMMU_ERRNO_H */ diff --git a/include/asm-nios2nommu/fcntl.h b/include/asm-nios2nommu/fcntl.h new file mode 100644 index 0000000..9d98af2 --- /dev/null +++ b/include/asm-nios2nommu/fcntl.h @@ -0,0 +1,11 @@ +#ifndef _NIOS2_FCNTL_H +#define _NIOS2_FCNTL_H + +#define O_DIRECTORY 040000 /* must be a directory */ +#define O_NOFOLLOW 0100000 /* don't follow links */ +#define O_DIRECT 0200000 /* direct disk access hint - currently ignored */ +#define O_LARGEFILE 0400000 + +#include + +#endif /* _NIOS2_FCNTL_H */ diff --git a/include/asm-nios2nommu/flat.h b/include/asm-nios2nommu/flat.h new file mode 100644 index 0000000..681329a --- /dev/null +++ b/include/asm-nios2nommu/flat.h @@ -0,0 +1,129 @@ +/* + * include/asm-nios2nommu/flat.h -- uClinux bFLT relocations + * + * Copyright (C) 2004,05 Microtronix Datacom Ltd + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * Written by Wentao Xu + */ + +#ifndef __NIOS2_FLAT_H__ +#define __NIOS2_FLAT_H__ + +#define flat_reloc_valid(reloc, size) ((reloc) <= (size + 0x8000)) + +/* The stack is 64-bit aligned for Nios II, so (sp - 1) shall + * be 64-bit aligned, where -1 is for argc + */ +#define flat_stack_align(sp) (sp = (unsigned long *)(((unsigned long)sp - 1) & (-8))) + +/* The uClibc port for Nios II expects the argc is followed by argv and envp */ +#define flat_argvp_envp_on_stack() 1 + +#define flat_old_ram_flag(flags) (flags) + +/* We store the type of relocation in the top 4 bits of the `relval.' */ + +/* Convert a relocation entry into an address. */ +static inline unsigned long +flat_get_relocate_addr (unsigned long relval) +{ + return relval & 0x0fffffff; /* Mask out top 4-bits */ +} + +#define FLAT_NIOS2_RELOC_TYPE(relval) ((relval) >> 28) + +#define FLAT_NIOS2_R_32 0 /* Normal 32-bit reloc */ +#define FLAT_NIOS2_R_HI_LO 1 /* High 16-bits + low 16-bits field */ +#define FLAT_NIOS2_R_HIADJ_LO 2 /* High 16-bits adjust + low 16-bits field */ +#define FLAT_NIOS2_R_CALL26 4 /* Call imm26 */ + +#define flat_set_persistent(relval, p) 0 + +/* Extract the address to be relocated from the symbol reference at rp; + * relval is the raw relocation-table entry from which RP is derived. + * rp shall always be 32-bit aligned + */ +static inline unsigned long flat_get_addr_from_rp (unsigned long *rp, + unsigned long relval, + unsigned long flags, + unsigned long *persistent) +{ + switch (FLAT_NIOS2_RELOC_TYPE(relval)) + { + case FLAT_NIOS2_R_32: + /* Simple 32-bit address. The loader expect it in bigger endian */ + return htonl(*rp); + + case FLAT_NIOS2_R_HI_LO: + /* get the two 16-bit immediate value from instructions, then + * construct a 32-bit value. Again the loader expect bigger endian + */ + return htonl ((((rp[0] >> 6) & 0xFFFF) << 16 ) | + ((rp[1] >> 6) & 0xFFFF)); + + case FLAT_NIOS2_R_HIADJ_LO: + { + /* get the two 16-bit immediate value from instructions, then + * construct a 32-bit value. Again the loader expect bigger endian + */ + unsigned int low, high; + high = (rp[0] >> 6) & 0xFFFF; + low = (rp[1] >> 6) & 0xFFFF; + + if ((low >> 15) & 1) high--; + + return htonl ((high << 16 ) | low ); + } + case FLAT_NIOS2_R_CALL26: + /* the 26-bit immediate value is actually 28-bit */ + return htonl(((*rp) >> 6) << 2); + + default: + return ~0; /* bogus value */ + } +} + +/* Insert the address addr into the symbol reference at rp; + * relval is the raw relocation-table entry from which rp is derived. + * rp shall always be 32-bit aligned + */ +static inline void flat_put_addr_at_rp (unsigned long *rp, unsigned long addr, + unsigned long relval) +{ + unsigned long exist_val; + switch (FLAT_NIOS2_RELOC_TYPE (relval)) { + case FLAT_NIOS2_R_32: + /* Simple 32-bit address. */ + *rp = addr; + break; + + case FLAT_NIOS2_R_HI_LO: + exist_val = rp[0]; + rp[0] = ((((exist_val >> 22) << 16) | (addr >> 16)) << 6) | (exist_val & 0x3F); + exist_val = rp[1]; + rp[1] = ((((exist_val >> 22) << 16) | (addr & 0xFFFF)) << 6) | (exist_val & 0x3F); + break; + + case FLAT_NIOS2_R_HIADJ_LO: + { + unsigned int high = (addr >> 16); + if ((addr >> 15) & 1) + high = (high + 1) & 0xFFFF; + exist_val = rp[0]; + rp[0] = ((((exist_val >> 22) << 16) | high) << 6) | (exist_val & 0x3F); + exist_val = rp[1]; + rp[1] = ((((exist_val >> 22) << 16) | (addr & 0xFFFF)) << 6) | (exist_val & 0x3F); + break; + } + case FLAT_NIOS2_R_CALL26: + /* the opcode of CALL is 0, so just store the value */ + *rp = ((addr >> 2) << 6); + break; + } +} + +#endif /* __NIOS2_FLAT_H__ */ diff --git a/include/asm-nios2nommu/futex.h b/include/asm-nios2nommu/futex.h new file mode 100644 index 0000000..6a332a9 --- /dev/null +++ b/include/asm-nios2nommu/futex.h @@ -0,0 +1,6 @@ +#ifndef _ASM_FUTEX_H +#define _ASM_FUTEX_H + +#include + +#endif diff --git a/include/asm-nios2nommu/gpio.h b/include/asm-nios2nommu/gpio.h new file mode 100644 index 0000000..b91937b --- /dev/null +++ b/include/asm-nios2nommu/gpio.h @@ -0,0 +1,11 @@ +#ifndef _ASM_GPIO_H_ +#define _ASM_GPIO_H_ 1 + + +struct gpio_i2c_pins { + unsigned sda_pin; + unsigned scl_pin; +}; + +#endif /*_ASM_GPIO_*/ + diff --git a/include/asm-nios2nommu/hardirq.h b/include/asm-nios2nommu/hardirq.h new file mode 100644 index 0000000..0041f51 --- /dev/null +++ b/include/asm-nios2nommu/hardirq.h @@ -0,0 +1,43 @@ +/* + * Ported from m68knommu + * + * Copyright (C) 2003, Microtronix Datacom Ltd. + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef __NIOS2_HARDIRQ_H +#define __NIOS2_HARDIRQ_H + +#include +#include + +typedef struct { + unsigned int __softirq_pending; +} ____cacheline_aligned irq_cpustat_t; + +#include /* Standard mappings for irq_cpustat_t above */ + +#define HARDIRQ_BITS 8 + +#ifdef CONFIG_SMP +# error nios2nommu SMP is not available +#endif /* CONFIG_SMP */ + +#endif /* __NIOS2_HARDIRQ_H */ diff --git a/include/asm-nios2nommu/hdreg.h b/include/asm-nios2nommu/hdreg.h new file mode 100644 index 0000000..b4d910a --- /dev/null +++ b/include/asm-nios2nommu/hdreg.h @@ -0,0 +1,30 @@ +/* + * Copyright (C) 1994-1996 Linus Torvalds & authors + * Copyright (C) 2002 Wentau Xu (www.microtronix.com) + * copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2_HDREG_H +#define __NIOS2_HDREG_H + +typedef unsigned long ide_ioreg_t; + +#endif /* __NIOS2_HDREG_H */ diff --git a/include/asm-nios2nommu/hw_irq.h b/include/asm-nios2nommu/hw_irq.h new file mode 100644 index 0000000..d2fd3be --- /dev/null +++ b/include/asm-nios2nommu/hw_irq.h @@ -0,0 +1,16 @@ +#ifndef _ASM_HW_IRQ_H +#define _ASM_HW_IRQ_H + +/* + * linux/include/asm/hw_irq.h + * + * (C) 1992, 1993 Linus Torvalds, (C) 1997 Ingo Molnar + * + * moved some of the old arch/i386/kernel/irq.h to here. VY + * + * IRQ/IPI changes taken from work by Thomas Radke + * + */ + + +#endif /* _ASM_HW_IRQ_H */ diff --git a/include/asm-nios2nommu/ide.h b/include/asm-nios2nommu/ide.h new file mode 100644 index 0000000..f8ef9ad --- /dev/null +++ b/include/asm-nios2nommu/ide.h @@ -0,0 +1,40 @@ +/* + * linux/include/asm-niosnommu2/ide.h + * + * Copyright (C) 1994-1996 Linus Torvalds & authors + * Copyright (C) 2004 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __ASMNIOS2_IDE_H +#define __ASMNIOS2_IDE_H + +#ifdef __KERNEL__ +#undef MAX_HWIFS /* we're going to force it */ + +#ifndef MAX_HWIFS +#define MAX_HWIFS 1 +#endif + +#include + +#endif /* __KERNEL__ */ + +#endif /* __ASMNIOS2_IDE_H */ diff --git a/include/asm-nios2nommu/init.h b/include/asm-nios2nommu/init.h new file mode 100644 index 0000000..8641f4f --- /dev/null +++ b/include/asm-nios2nommu/init.h @@ -0,0 +1,22 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#error " should never be used - use instead" diff --git a/include/asm-nios2nommu/io.h b/include/asm-nios2nommu/io.h new file mode 100644 index 0000000..d0e3741 --- /dev/null +++ b/include/asm-nios2nommu/io.h @@ -0,0 +1,277 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2_IO_H +#define __NIOS2_IO_H + +#ifdef __KERNEL__ + +#include + +#include /* IO address mapping routines need this */ +#include +#include + +extern void insw(unsigned long port, void *dst, unsigned long count); +extern void outsw(unsigned long port, void *src, unsigned long count); +extern void insl(unsigned long port, void *dst, unsigned long count); +extern void outsl(unsigned long port, void *src, unsigned long count); + +#define readsb(p,d,l) insb(p,d,l) +#define readsw(p,d,l) insw(p,d,l) +#define readsl(p,d,l) insl(p,d,l) +#define writesb(p,d,l) outsb(p,d,l) +#define writesw(p,d,l) outsw(p,d,l) +#define writesl(p,d,l) outsl(p,d,l) +#ifndef irq_canonicalize +#define irq_canonicalize(i) (i) +#endif + +#endif /* __KERNEL__ */ +/* IO macros are needed by userspace programs */ + +/* + * readX/writeX() are used to access memory mapped devices. On some + * architectures the memory mapped IO stuff needs to be accessed + * differently. On the Nios architecture, we just read/write the + * memory location directly. + */ + +#define readb(addr) \ +({ \ + unsigned char __res;\ + __asm__ __volatile__( \ + "ldbuio %0, 0(%1)" \ + : "=r"(__res) \ + : "r" (addr)); \ + __res; \ +}) + +#define readw(addr) \ +({ \ + unsigned short __res;\ + __asm__ __volatile__( \ + "ldhuio %0, 0(%1)" \ + : "=r"(__res) \ + : "r" (addr)); \ + __res; \ +}) + +#define readl(addr) \ +({ \ + unsigned int __res;\ + __asm__ __volatile__( \ + "ldwio %0, 0(%1)" \ + : "=r"(__res) \ + : "r" (addr)); \ + __res; \ +}) + +#define writeb(b,addr) \ +({ \ + __asm__ __volatile__( \ + "stbio %0, 0(%1)" \ + : : "r"(b), "r" (addr)); \ +}) + +#define writew(b,addr) \ +({ \ + __asm__ __volatile__( \ + "sthio %0, 0(%1)" \ + : : "r"(b), "r" (addr)); \ +}) + +#define writel(b,addr) \ +({ \ + __asm__ __volatile__( \ + "stwio %0, 0(%1)" \ + : : "r"(b), "r" (addr)); \ +}) + +#define __raw_readb readb +#define __raw_readw readw +#define __raw_readl readl +#define __raw_writeb writeb +#define __raw_writew writew +#define __raw_writel writel + +#define mmiowb() + +/* + * make the short names macros so specific devices + * can override them as required + */ + +#define memset_io(addr,c,len) memset((void *)(((unsigned int)(addr)) | 0x80000000),(c),(len)) +#define memcpy_fromio(to,from,len) memcpy((to),(void *)(((unsigned int)(from)) | 0x80000000),(len)) +#define memcpy_toio(to,from,len) memcpy((void *)(((unsigned int)(to)) | 0x80000000),(from),(len)) + +#define inb(addr) readb(addr) +#define inw(addr) readw(addr) +#define inl(addr) readl(addr) + +#define outb(x,addr) ((void) writeb(x,addr)) +#define outw(x,addr) ((void) writew(x,addr)) +#define outl(x,addr) ((void) writel(x,addr)) + +#define inb_p(addr) inb(addr) +#define inw_p(addr) inw(addr) +#define inl_p(addr) inl(addr) + +#define outb_p(x,addr) outb(x,addr) +#define outw_p(x,addr) outw(x,addr) +#define outl_p(x,addr) outl(x,addr) + +/* IO macros are needed by userspace programs */ +#ifdef __KERNEL__ + +extern inline void insb(unsigned long port, void *dst, unsigned long count) +{ + unsigned char *p=(unsigned char*)dst; + while (count--) + *p++ = inb(port); +} + +/* See arch/niosnommu/io.c for optimized version */ +extern inline void _insw(unsigned long port, void *dst, unsigned long count) +{ + unsigned short *p=(unsigned short*)dst; + while (count--) + *p++ = inw(port); +} + +/* See arch/niosnommu/kernel/io.c for unaligned destination pointer */ +extern inline void _insl(unsigned long port, void *dst, unsigned long count) +{ + unsigned long *p=(unsigned long*)dst; + while (count--) + *p++ = inl(port); +} + +extern inline void outsb(unsigned long port, void *src, unsigned long count) +{ + unsigned char *p=(unsigned char*)src; + while (count--) + outb( *p++, port ); +} + +/* See arch/niosnommu/io.c for optimized version */ +extern inline void _outsw(unsigned long port, void *src, unsigned long count) +{ + unsigned short *p=(unsigned short*)src; + while (count--) + outw( *p++, port ); +} + +/* See arch/niosnommu/kernel/io.c for unaligned source pointer */ +extern inline void _outsl(unsigned long port, void *src, unsigned long count) +{ + unsigned long *p=(unsigned long*)src; + while (count--) + outl( *p++, port ); +} + + + +extern inline void mapioaddr(unsigned long physaddr, unsigned long virt_addr, + int bus, int rdonly) +{ + return; +} + +//vic - copied from m68knommu + +/* Values for nocacheflag and cmode */ +#define IOMAP_FULL_CACHING 0 +#define IOMAP_NOCACHE_SER 1 +#define IOMAP_NOCACHE_NONSER 2 +#define IOMAP_WRITETHROUGH 3 + +extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag); +extern void __iounmap(void *addr, unsigned long size); + +extern inline void *ioremap(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); +} +extern inline void *ioremap_nocache(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); +} +extern inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); +} +extern inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size) +{ + return __ioremap(physaddr, size, IOMAP_FULL_CACHING); +} + +extern void iounmap(void *addr); + + +#define IO_SPACE_LIMIT 0xffffffff + +#define dma_cache_inv(_start,_size) dcache_push(_start,_size) +#define dma_cache_wback(_start,_size) dcache_push(_start,_size) +#define dma_cache_wback_inv(_start,_size) dcache_push(_start,_size) + +/* Pages to physical address... */ +#define page_to_phys(page) page_to_virt(page) +#define page_to_bus(page) page_to_virt(page) + +#define mm_ptov(vaddr) ((void *) (vaddr)) +#define mm_vtop(vaddr) ((unsigned long) (vaddr)) +#define phys_to_virt(vaddr) ((void *) (vaddr)) +#define virt_to_phys(vaddr) ((unsigned long) (vaddr)) + +#define virt_to_bus virt_to_phys +#define bus_to_virt phys_to_virt + +#define ioport_map(port, nr) ioremap(port, nr) +#define ioport_unmap(port) iounmap(port) + +/* + * Convert a physical pointer to a virtual kernel pointer for /dev/mem + * access + */ +#define xlate_dev_mem_ptr(p) __va(p) + +/* + * Convert a virtual cached pointer to an uncached pointer + */ +#define xlate_dev_kmem_ptr(p) p + +#define readsb(p,d,l) insb(p,d,l) +#define readsw(p,d,l) insw(p,d,l) +#define readsl(p,d,l) insl(p,d,l) +#define writesb(p,d,l) outsb(p,d,l) +#define writesw(p,d,l) outsw(p,d,l) +#define writesl(p,d,l) outsl(p,d,l) +#ifndef irq_canonicalize +#define irq_canonicalize(i) (i) +#endif + +#endif /* __KERNEL__ */ + +#endif /* !(__NIOS2_IO_H) */ + diff --git a/include/asm-nios2nommu/ioctl.h b/include/asm-nios2nommu/ioctl.h new file mode 100644 index 0000000..c02a36a --- /dev/null +++ b/include/asm-nios2nommu/ioctl.h @@ -0,0 +1,100 @@ +/* $Id: ioctl.h,v 1.1 2006/07/05 06:20:25 gerg Exp $ + * + * linux/ioctl.h for Linux by H.H. Bergman. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2_IOCTL_H +#define _NIOS2_IOCTL_H + +/* ioctl command encoding: 32 bits total, command in lower 16 bits, + * size of the parameter structure in the lower 14 bits of the + * upper 16 bits. + * Encoding the size of the parameter structure in the ioctl request + * is useful for catching programs compiled with old versions + * and to avoid overwriting user space outside the user buffer area. + * The highest 2 bits are reserved for indicating the ``access mode''. + * NOTE: This limits the max parameter size to 16kB -1 ! + */ + +/* + * I don't really have any idea about what this should look like, so + * for the time being, this is heavily based on the PC definitions. + */ + +/* + * The following is for compatibility across the various Linux + * platforms. The i386 ioctl numbering scheme doesn't really enforce + * a type field. De facto, however, the top 8 bits of the lower 16 + * bits are indeed used as a type field, so we might just as well make + * this explicit here. Please be sure to use the decoding macros + * below from now on. + */ +#define _IOC_NRBITS 8 +#define _IOC_TYPEBITS 8 +#define _IOC_SIZEBITS 14 +#define _IOC_DIRBITS 2 + +#define _IOC_NRMASK ((1 << _IOC_NRBITS)-1) +#define _IOC_TYPEMASK ((1 << _IOC_TYPEBITS)-1) +#define _IOC_SIZEMASK ((1 << _IOC_SIZEBITS)-1) +#define _IOC_DIRMASK ((1 << _IOC_DIRBITS)-1) + +#define _IOC_NRSHIFT 0 +#define _IOC_TYPESHIFT (_IOC_NRSHIFT+_IOC_NRBITS) +#define _IOC_SIZESHIFT (_IOC_TYPESHIFT+_IOC_TYPEBITS) +#define _IOC_DIRSHIFT (_IOC_SIZESHIFT+_IOC_SIZEBITS) + +/* + * Direction bits. + */ +#define _IOC_NONE 0U +#define _IOC_WRITE 1U +#define _IOC_READ 2U + +#define _IOC(dir,type,nr,size) \ + (((dir) << _IOC_DIRSHIFT) | \ + ((type) << _IOC_TYPESHIFT) | \ + ((nr) << _IOC_NRSHIFT) | \ + ((size) << _IOC_SIZESHIFT)) + +/* used to create numbers */ +#define _IO(type,nr) _IOC(_IOC_NONE,(type),(nr),0) +#define _IOR(type,nr,size) _IOC(_IOC_READ,(type),(nr),sizeof(size)) +#define _IOW(type,nr,size) _IOC(_IOC_WRITE,(type),(nr),sizeof(size)) +#define _IOWR(type,nr,size) _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size)) + +/* used to decode ioctl numbers.. */ +#define _IOC_DIR(nr) (((nr) >> _IOC_DIRSHIFT) & _IOC_DIRMASK) +#define _IOC_TYPE(nr) (((nr) >> _IOC_TYPESHIFT) & _IOC_TYPEMASK) +#define _IOC_NR(nr) (((nr) >> _IOC_NRSHIFT) & _IOC_NRMASK) +#define _IOC_SIZE(nr) (((nr) >> _IOC_SIZESHIFT) & _IOC_SIZEMASK) + +/* ...and for the drivers/sound files... */ + +#define IOC_IN (_IOC_WRITE << _IOC_DIRSHIFT) +#define IOC_OUT (_IOC_READ << _IOC_DIRSHIFT) +#define IOC_INOUT ((_IOC_WRITE|_IOC_READ) << _IOC_DIRSHIFT) +#define IOCSIZE_MASK (_IOC_SIZEMASK << _IOC_SIZESHIFT) +#define IOCSIZE_SHIFT (_IOC_SIZESHIFT) + +#endif /* _NIOS2_IOCTL_H */ diff --git a/include/asm-nios2nommu/ioctls.h b/include/asm-nios2nommu/ioctls.h new file mode 100644 index 0000000..288025c --- /dev/null +++ b/include/asm-nios2nommu/ioctls.h @@ -0,0 +1,103 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __ARCH_NIOS2_IOCTLS_H__ +#define __ARCH_NIOS2_IOCTLS_H__ + +#include + +/* 0x54 is just a magic number to make these relatively unique ('T') */ + +#define TCGETS 0x5401 +#define TCSETS 0x5402 +#define TCSETSW 0x5403 +#define TCSETSF 0x5404 +#define TCGETA 0x5405 +#define TCSETA 0x5406 +#define TCSETAW 0x5407 +#define TCSETAF 0x5408 +#define TCSBRK 0x5409 +#define TCXONC 0x540A +#define TCFLSH 0x540B +#define TIOCEXCL 0x540C +#define TIOCNXCL 0x540D +#define TIOCSCTTY 0x540E +#define TIOCGPGRP 0x540F +#define TIOCSPGRP 0x5410 +#define TIOCOUTQ 0x5411 +#define TIOCSTI 0x5412 +#define TIOCGWINSZ 0x5413 +#define TIOCSWINSZ 0x5414 +#define TIOCMGET 0x5415 +#define TIOCMBIS 0x5416 +#define TIOCMBIC 0x5417 +#define TIOCMSET 0x5418 +#define TIOCGSOFTCAR 0x5419 +#define TIOCSSOFTCAR 0x541A +#define FIONREAD 0x541B +#define TIOCINQ FIONREAD +#define TIOCLINUX 0x541C +#define TIOCCONS 0x541D +#define TIOCGSERIAL 0x541E +#define TIOCSSERIAL 0x541F +#define TIOCPKT 0x5420 +#define FIONBIO 0x5421 +#define TIOCNOTTY 0x5422 +#define TIOCSETD 0x5423 +#define TIOCGETD 0x5424 +#define TCSBRKP 0x5425 /* Needed for POSIX tcsendbreak() */ +#define TIOCTTYGSTRUCT 0x5426 /* For debugging only */ +#define TIOCSBRK 0x5427 /* BSD compatibility */ +#define TIOCCBRK 0x5428 /* BSD compatibility */ +#define TIOCGSID 0x5429 /* Return the session ID of FD */ +#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */ +#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */ + +#define FIONCLEX 0x5450 /* these numbers need to be adjusted. */ +#define FIOCLEX 0x5451 +#define FIOASYNC 0x5452 +#define TIOCSERCONFIG 0x5453 +#define TIOCSERGWILD 0x5454 +#define TIOCSERSWILD 0x5455 +#define TIOCGLCKTRMIOS 0x5456 +#define TIOCSLCKTRMIOS 0x5457 +#define TIOCSERGSTRUCT 0x5458 /* For debugging only */ +#define TIOCSERGETLSR 0x5459 /* Get line status register */ +#define TIOCSERGETMULTI 0x545A /* Get multiport config */ +#define TIOCSERSETMULTI 0x545B /* Set multiport config */ + +#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */ +#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */ +#define FIOQSIZE 0x545E + +/* Used for packet mode */ +#define TIOCPKT_DATA 0 +#define TIOCPKT_FLUSHREAD 1 +#define TIOCPKT_FLUSHWRITE 2 +#define TIOCPKT_STOP 4 +#define TIOCPKT_START 8 +#define TIOCPKT_NOSTOP 16 +#define TIOCPKT_DOSTOP 32 + +#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */ + +#endif /* __ARCH_NIOS2_IOCTLS_H__ */ diff --git a/include/asm-nios2nommu/ipc.h b/include/asm-nios2nommu/ipc.h new file mode 100644 index 0000000..cb86a31 --- /dev/null +++ b/include/asm-nios2nommu/ipc.h @@ -0,0 +1,51 @@ +#ifndef __NIOS2_IPC_H__ +#define __NIOS2_IPC_H__ + +/* Copied from sparc version + * These are used to wrap system calls on the Nios. + * + * See arch/niosnommu/kernel/sys_nios.c for ugly details.. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +struct ipc_kludge { + struct msgbuf *msgp; + long msgtyp; +}; + +#define SEMOP 1 +#define SEMGET 2 +#define SEMCTL 3 +#define MSGSND 11 +#define MSGRCV 12 +#define MSGGET 13 +#define MSGCTL 14 +#define SHMAT 21 +#define SHMDT 22 +#define SHMGET 23 +#define SHMCTL 24 + +/* Used by the DIPC package, try and avoid reusing it */ +#define DIPC 25 + +#define IPCCALL(version,op) ((version)<<16 | (op)) + +#endif diff --git a/include/asm-nios2nommu/ipcbuf.h b/include/asm-nios2nommu/ipcbuf.h new file mode 100644 index 0000000..ef59533 --- /dev/null +++ b/include/asm-nios2nommu/ipcbuf.h @@ -0,0 +1,49 @@ +#ifndef __NIOS2_IPCBUF_H__ +#define __NIOS2_IPCBUF_H__ + +/* Copied from asm-m68k/ipcbuf.h + * The user_ipc_perm structure for Nios architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 32-bit mode_t and seq + * - 2 miscellaneous 32-bit values + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +struct ipc64_perm +{ + __kernel_key_t key; + __kernel_uid32_t uid; + __kernel_gid32_t gid; + __kernel_uid32_t cuid; + __kernel_gid32_t cgid; + __kernel_mode_t mode; + unsigned short __pad1; + unsigned short seq; + unsigned short __pad2; + unsigned long __unused1; + unsigned long __unused2; +}; + +#endif /* __NIOS2_IPCBUF_H__ */ diff --git a/include/asm-nios2nommu/irq.h b/include/asm-nios2nommu/irq.h new file mode 100644 index 0000000..f0e37a2 --- /dev/null +++ b/include/asm-nios2nommu/irq.h @@ -0,0 +1,181 @@ +/* + * 21Mar2001 1.1 dgt/microtronix + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + +#ifndef _NIOS2NOMMU_IRQ_H_ +#define _NIOS2NOMMU_IRQ_H_ + +extern void disable_irq(unsigned int); +extern void enable_irq(unsigned int); + +#include + +#define SYS_IRQS 32 +#define NR_IRQS SYS_IRQS + +/* + * Interrupt source definitions + * General interrupt sources are the level 1-7. + * Adding an interrupt service routine for one of these sources + * results in the addition of that routine to a chain of routines. + * Each one is called in succession. Each individual interrupt + * service routine should determine if the device associated with + * that routine requires service. + */ + +#define IRQ01 (1) /* level 1 interrupt */ +#define IRQ02 (2) /* level 2 interrupt */ +#define IRQ03 (3) /* level 3 interrupt */ +#define IRQ04 (4) /* level 4 interrupt */ +#define IRQ05 (5) /* level 5 interrupt */ +#define IRQ06 (6) /* level 6 interrupt */ +#define IRQ07 (7) /* level 7 interrupt */ +#define IRQ08 (8) /* level 8 interrupt */ +#define IRQ09 (9) /* level 9 interrupt */ +#define IRQ0A (10) /* level 10 interrupt */ +#define IRQ0B (11) /* level 11 interrupt */ +#define IRQ0C (12) /* level 12 interrupt */ +#define IRQ0D (13) /* level 13 interrupt */ +#define IRQ0E (14) /* level 14 interrupt */ +#define IRQ0F (15) /* level 15 interrupt */ +#define IRQ10 (16) /* level 16 interrupt */ +#define IRQ12 (17) /* level 17 interrupt */ +#define IRQ13 (18) /* level 18 interrupt */ +#define IRQ14 (19) /* level 19 interrupt */ +#define IRQ15 (20) /* level 20 interrupt */ +#define IRQ16 (21) /* level 21 interrupt */ +#define IRQ17 (22) /* level 22 interrupt */ +#define IRQ18 (23) /* level 23 interrupt */ +#define IRQ19 (24) /* level 24 interrupt */ +#define IRQ1A (25) /* level 25 interrupt */ +#define IRQ1B (26) /* level 26 interrupt */ +#define IRQ1C (27) /* level 27 interrupt */ +#define IRQ1D (28) /* level 28 interrupt */ +#define IRQ1E (29) /* level 29 interrupt */ +#define IRQ1F (30) /* level 30 interrupt */ +#define IRQ20 (31) /* level 31 interrupt */ +#define IRQ21 (32) /* level 32 interrupt */ + +#define IRQMAX IRQ21 + +/* + * "Generic" interrupt sources + */ + +/* + * Machine specific interrupt sources. + * + * Adding an interrupt service routine for a source with this bit + * set indicates a special machine specific interrupt source. + * The machine specific files define these sources. + * + * Removed, they are not used by any one. + */ + +/* + * various flags for request_irq() + */ +#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */ +#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */ +#define IRQ_FLG_FAST (0x0004) +#define IRQ_FLG_SLOW (0x0008) +#define IRQ_FLG_STD (0x8000) /* internally used */ + +/* + * Functions to set and clear the interrupt mask. + */ + +/* + * Use a zero to clean the bit. + */ +static inline void clrimr(int mask) +{ + int flags; + + local_irq_save(flags); + __asm__ __volatile__( + "rdctl r8, ienable\n" + "and r8,r8,%0\n" + "wrctl ienable, r8\n" + : /* No output */ + : "r" (mask) + : "r8"); + local_irq_restore(flags); +} + +/* + * Use a one to set the bit. + */ +static inline void setimr(int mask) +{ + int flags; + + local_irq_save(flags); + __asm__ __volatile__( + "rdctl r8, ienable\n" + "or r8,r8,%0\n" + "wrctl ienable, r8\n" + : /* No output */ + : "r" (mask) + : "r8"); + local_irq_restore(flags); +} + +/* + * This structure is used to chain together the ISRs for a particular + * interrupt source (if it supports chaining). + */ +typedef struct irq_node { + irq_handler_t handler; + unsigned long flags; + void *dev_id; + const char *devname; + struct irq_node *next; +} irq_node_t; + +/* + * This function returns a new irq_node_t + */ +extern irq_node_t *new_irq_node(void); + +/* + * This structure has only 4 elements for speed reasons + */ +typedef struct irq_hand { + irq_handler_t handler; + unsigned long flags; + void *dev_id; + const char *devname; +} irq_hand_t; + +/* count of spurious interrupts */ +extern volatile unsigned int num_spurious; + +#define disable_irq_nosync(i) disable_irq(i) + +#ifndef irq_canonicalize +#define irq_canonicalize(i) (i) +#endif + +#endif /* _NIOS2NOMMU_IRQ_H_ */ diff --git a/include/asm-nios2nommu/irq_node.h b/include/asm-nios2nommu/irq_node.h new file mode 100644 index 0000000..24f9763 --- /dev/null +++ b/include/asm-nios2nommu/irq_node.h @@ -0,0 +1,36 @@ +#ifndef _NIOS2NOMMU_IRQNODE_H_ +#define _NIOS2NOMMU_IRQNODE_H_ + +#include + +/* + * This structure is used to chain together the ISRs for a particular + * interrupt source (if it supports chaining). + */ +typedef struct irq_node { + irqreturn_t (*handler)(int, void *, struct pt_regs *); + unsigned long flags; + void *dev_id; + const char *devname; + struct irq_node *next; +} irq_node_t; + +/* + * This structure has only 4 elements for speed reasons + */ +typedef struct irq_handler { + irqreturn_t (*handler)(int, void *, struct pt_regs *); + unsigned long flags; + void *dev_id; + const char *devname; +} irq_handler_t; + +/* count of spurious interrupts */ +extern volatile unsigned int num_spurious; + +/* + * This function returns a new irq_node_t + */ +extern irq_node_t *new_irq_node(void); + +#endif /* _NIOS2NOMMU_IRQNODE_H_ */ diff --git a/include/asm-nios2nommu/irq_regs.h b/include/asm-nios2nommu/irq_regs.h new file mode 100644 index 0000000..3dd9c0b --- /dev/null +++ b/include/asm-nios2nommu/irq_regs.h @@ -0,0 +1 @@ +#include diff --git a/include/asm-nios2nommu/kdebug.h b/include/asm-nios2nommu/kdebug.h new file mode 100644 index 0000000..6ece1b0 --- /dev/null +++ b/include/asm-nios2nommu/kdebug.h @@ -0,0 +1 @@ +#include diff --git a/include/asm-nios2nommu/kmap_types.h b/include/asm-nios2nommu/kmap_types.h new file mode 100644 index 0000000..a26b91d --- /dev/null +++ b/include/asm-nios2nommu/kmap_types.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _ASM_KMAP_TYPES_H +#define _ASM_KMAP_TYPES_H + +enum km_type { + KM_BOUNCE_READ, + KM_SKB_SUNRPC_DATA, + KM_SKB_DATA_SOFTIRQ, + KM_USER0, + KM_USER1, + KM_BIO_SRC_IRQ, + KM_BIO_DST_IRQ, + KM_PTE0, + KM_PTE1, + KM_IRQ0, + KM_IRQ1, + KM_SOFTIRQ0, + KM_SOFTIRQ1, + KM_TYPE_NR +}; + +#endif diff --git a/include/asm-nios2nommu/linkage.h b/include/asm-nios2nommu/linkage.h new file mode 100644 index 0000000..db79297 --- /dev/null +++ b/include/asm-nios2nommu/linkage.h @@ -0,0 +1,29 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __ASM_LINKAGE_H +#define __ASM_LINKAGE_H + +#define __ALIGN .align 3 +#define __ALIGN_STR ".align 3" + +#endif diff --git a/include/asm-nios2nommu/linux_logo.h b/include/asm-nios2nommu/linux_logo.h new file mode 100644 index 0000000..f9d38e7 --- /dev/null +++ b/include/asm-nios2nommu/linux_logo.h @@ -0,0 +1,953 @@ +/* $Id: linux_logo.h,v 1.1 2006/07/05 06:20:25 gerg Exp $ + * include/asm-nios/linux_logo.h: This is a linux logo + * to be displayed on boot. + * + * Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu) + * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + * Copyright (C) 2004 Micrtronix Datacom Ltd. + * + * You can put anything here, but: + * LINUX_LOGO_COLORS has to be less than 224 + * image size has to be 80x80 + * values have to start from 0x20 + * (i.e. RGB(linux_logo_red[0], + * linux_logo_green[0], + * linux_logo_blue[0]) is color 0x20) + * BW image has to be 80x80 as well, with MS bit + * on the left + * Serial_console ascii image can be any size, + * but should contain %s to display the version + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include +#include + +#define linux_logo_banner "Linux/NIOS2 version " UTS_RELEASE + +#define __HAVE_ARCH_LINUX_LOGO +#define __HAVE_ARCH_LINUX_LOGO16 + +#define LINUX_LOGO_COLORS 221 + +#ifdef INCLUDE_LINUX_LOGO_DATA + +unsigned char linux_logo_red[] __initdata = { + 0x00, 0x06, 0x0a, 0x0e, 0x16, 0x1a, 0x1e, 0x22, + 0x12, 0x00, 0x2a, 0x36, 0x42, 0x4e, 0x4a, 0x56, + 0x26, 0x46, 0x2e, 0x32, 0x52, 0x3a, 0x02, 0x65, + 0x5e, 0x3e, 0x74, 0x8a, 0xa2, 0x9a, 0x86, 0xc6, + 0xc3, 0x65, 0xbb, 0xd2, 0xda, 0xd6, 0xe2, 0xf6, + 0xfd, 0xae, 0x7b, 0xdd, 0xea, 0x6a, 0xaa, 0xe7, + 0xbe, 0x5a, 0xee, 0x9e, 0x95, 0x80, 0x76, 0x79, + 0x62, 0x36, 0x9a, 0xe2, 0xec, 0xe1, 0xb8, 0xd7, + 0xaf, 0x25, 0xbc, 0xc0, 0xef, 0xea, 0xe8, 0xe8, + 0xf5, 0xf1, 0xda, 0xd3, 0x79, 0xdb, 0xf4, 0xf6, + 0xf6, 0xf6, 0xe2, 0x3d, 0xb4, 0xce, 0xe6, 0xee, + 0xf6, 0x68, 0xd8, 0xec, 0xf5, 0xc6, 0xc8, 0x9c, + 0x89, 0xd2, 0xee, 0xcb, 0xb9, 0xd2, 0x66, 0x5e, + 0x8b, 0xbe, 0xa8, 0xd5, 0xca, 0xb6, 0xae, 0x9c, + 0xc5, 0xbe, 0xbe, 0xca, 0x90, 0xb2, 0x9a, 0xa8, + 0xb6, 0xf2, 0xce, 0xfa, 0xb2, 0x6e, 0xa6, 0xfe, + 0xf6, 0xec, 0xfe, 0xd2, 0xea, 0xf5, 0xf2, 0xf2, + 0xe9, 0xee, 0xf6, 0xf2, 0xee, 0xf6, 0xda, 0xd4, + 0xfa, 0xca, 0xf2, 0xf6, 0xfe, 0xf2, 0xda, 0xe4, + 0xf6, 0xdd, 0xf2, 0xee, 0xfa, 0xf0, 0x12, 0x4a, + 0xd6, 0xf2, 0x8e, 0xf2, 0xf6, 0xf6, 0xb5, 0xf1, + 0x26, 0x9a, 0xea, 0xf6, 0xe0, 0xd2, 0x16, 0x9a, + 0x2e, 0xd2, 0x70, 0xd6, 0x46, 0x7c, 0xb4, 0x62, + 0xda, 0xee, 0xd6, 0xa3, 0x74, 0xa7, 0xa2, 0xe0, + 0xae, 0xbe, 0xce, 0xe2, 0xa3, 0x8e, 0x6d, 0x8e, + 0x32, 0xaf, 0x50, 0x9e, 0x5b, 0x8a, 0x98, 0x82, + 0x7a, 0x82, 0x56, 0x7c, 0x8a, 0x56, 0x5e, 0x86, + 0x6a, 0x52, 0x59, 0x64, 0x5e, +}; + +unsigned char linux_logo_green[] __initdata = { + 0x00, 0x06, 0x0a, 0x0e, 0x16, 0x1a, 0x1e, 0x22, + 0x12, 0x00, 0x2a, 0x36, 0x42, 0x4e, 0x4a, 0x56, + 0x26, 0x46, 0x2e, 0x32, 0x52, 0x3a, 0x02, 0x65, + 0x5e, 0x3e, 0x74, 0x8a, 0xa2, 0x9a, 0x86, 0xc6, + 0xc3, 0x62, 0xbb, 0xd2, 0xda, 0xd6, 0xe2, 0xf6, + 0xfd, 0xae, 0x7b, 0xdd, 0xea, 0x6a, 0xaa, 0xe7, + 0xbe, 0x5a, 0xee, 0x9e, 0x95, 0x80, 0x62, 0x5c, + 0x4e, 0x26, 0x72, 0xaa, 0xba, 0xaf, 0x90, 0xae, + 0x92, 0x1a, 0xa4, 0x85, 0xb6, 0xbe, 0xc3, 0xc8, + 0xcf, 0xd0, 0xc2, 0xce, 0x57, 0xa2, 0xd6, 0xda, + 0xda, 0xd7, 0xb8, 0x2a, 0x7b, 0x91, 0xae, 0xca, + 0xda, 0x45, 0x9e, 0xb2, 0xd7, 0x9b, 0x90, 0x76, + 0x5c, 0xa2, 0xbe, 0xa6, 0x85, 0x96, 0x4e, 0x46, + 0x66, 0x92, 0x7a, 0x9a, 0x96, 0x9d, 0x9a, 0x6b, + 0x8a, 0x8e, 0xb2, 0xca, 0x90, 0xa6, 0x79, 0x7c, + 0xb6, 0xf2, 0xce, 0xfa, 0xb2, 0x6e, 0xa6, 0xfa, + 0xea, 0xd7, 0xf6, 0xbc, 0xda, 0xde, 0xda, 0xe6, + 0xca, 0xd8, 0xea, 0xe0, 0xcc, 0xf2, 0xce, 0xb2, + 0xee, 0xa2, 0xd6, 0xe6, 0xf6, 0xd7, 0xc5, 0xb8, + 0xc6, 0xb9, 0xce, 0xde, 0xce, 0xc6, 0x0e, 0x36, + 0xae, 0xbe, 0x86, 0xba, 0xbe, 0xe6, 0x8e, 0xc4, + 0x1e, 0x8e, 0xae, 0xba, 0xb2, 0xa6, 0x12, 0x7a, + 0x20, 0xc6, 0x64, 0xaa, 0x2f, 0x70, 0x85, 0x46, + 0xce, 0xd6, 0xa6, 0x6e, 0x51, 0x72, 0x92, 0xa6, + 0x87, 0x96, 0xa2, 0xd6, 0x85, 0x7a, 0x6a, 0x6e, + 0x22, 0x76, 0x36, 0x76, 0x3c, 0x6e, 0x63, 0x53, + 0x66, 0x62, 0x42, 0x50, 0x56, 0x42, 0x56, 0x56, + 0x56, 0x3e, 0x51, 0x52, 0x56, +}; + +unsigned char linux_logo_blue[] __initdata = { + 0x00, 0x06, 0x0a, 0x0e, 0x16, 0x1a, 0x1e, 0x22, + 0x12, 0x01, 0x2a, 0x36, 0x42, 0x4e, 0x4a, 0x56, + 0x26, 0x46, 0x2e, 0x32, 0x52, 0x3a, 0x06, 0x65, + 0x5e, 0x3e, 0x74, 0x8a, 0xa2, 0x9a, 0x86, 0xc6, + 0xc3, 0x59, 0xbb, 0xd2, 0xda, 0xd6, 0xe2, 0xf6, + 0xfd, 0xae, 0x7b, 0xdd, 0xea, 0x6a, 0xaa, 0xe7, + 0xbe, 0x5a, 0xee, 0x9e, 0x95, 0x80, 0x2e, 0x08, + 0x0a, 0x06, 0x0a, 0x0b, 0x0b, 0x0f, 0x0c, 0x0f, + 0x3d, 0x09, 0x73, 0x09, 0x0d, 0x0a, 0x10, 0x1e, + 0x2d, 0x13, 0x86, 0xba, 0x19, 0x0a, 0x36, 0x3c, + 0x26, 0x14, 0x0d, 0x06, 0x07, 0x0a, 0x0b, 0x0f, + 0x4a, 0x06, 0x0a, 0x0c, 0x2b, 0x0a, 0x0b, 0x0a, + 0x06, 0x0a, 0x0a, 0x11, 0x0b, 0x0a, 0x0a, 0x1e, + 0x0f, 0x0d, 0x0a, 0x0b, 0x22, 0x6a, 0x72, 0x0b, + 0x0b, 0x22, 0x90, 0xca, 0x90, 0x92, 0x3c, 0x2c, + 0xb6, 0xf2, 0xce, 0xfa, 0xb2, 0x6e, 0xa6, 0xea, + 0xb6, 0x7c, 0xda, 0x8e, 0xa6, 0x87, 0x66, 0xb6, + 0x81, 0x6a, 0xc6, 0x9a, 0x5b, 0xd2, 0xb6, 0x6a, + 0xca, 0x45, 0x92, 0xb2, 0xca, 0x52, 0x8a, 0x3e, + 0x2e, 0x66, 0x66, 0xae, 0x3e, 0x47, 0x06, 0x0e, + 0x52, 0x36, 0x6a, 0x0e, 0x0e, 0xbe, 0x2c, 0x0e, + 0x0a, 0x5a, 0x0d, 0x0e, 0x3e, 0x0a, 0x06, 0x2e, + 0x06, 0x9e, 0x4e, 0x36, 0x06, 0x58, 0x24, 0x06, + 0x9e, 0xae, 0x3a, 0x08, 0x08, 0x07, 0x5e, 0x0a, + 0x32, 0x2e, 0x2a, 0xb2, 0x43, 0x48, 0x5f, 0x2e, + 0x06, 0x06, 0x07, 0x24, 0x06, 0x32, 0x06, 0x06, + 0x46, 0x2e, 0x22, 0x06, 0x06, 0x1e, 0x4c, 0x06, + 0x3a, 0x22, 0x42, 0x34, 0x42, +}; + +unsigned char linux_logo[] __initdata = { + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x22, 0x22, + 0x22, 0x21, 0x21, 0x21, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, + 0x26, 0x26, 0x25, 0x28, 0x23, 0x22, 0x21, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x29, 0x29, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x21, 0x23, 0x25, 0x2a, 0x2b, 0x2c, 0x2d, 0x2d, + 0x2d, 0x2e, 0x2c, 0x2b, 0x2a, 0x25, 0x28, 0x22, + 0x21, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x29, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x22, + 0x24, 0x2a, 0x2c, 0x2f, 0x2c, 0x30, 0x30, 0x24, + 0x25, 0x27, 0x2b, 0x2c, 0x2f, 0x31, 0x32, 0x25, + 0x23, 0x21, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x29, 0x29, 0x29, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 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0x30, 0x32, 0x2b, 0x33, 0x2a, 0x26, 0x28, + 0x22, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x21, 0x23, 0x25, 0x30, 0x33, 0x35, 0x35, + 0x2b, 0x2a, 0x26, 0x28, 0x22, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x21, + 0x21, 0x22, 0x23, 0x28, 0x28, 0x23, 0x22, 0x21, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x21, 0x23, 0x28, 0x24, 0x24, + 0x28, 0x23, 0x22, 0x21, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, +}; + +unsigned char linux_logo16[1]; + +#endif /* INCLUDE_LINUX_LOGO_DATA */ + +#include + diff --git a/include/asm-nios2nommu/local.h b/include/asm-nios2nommu/local.h new file mode 100644 index 0000000..5ed7d1c --- /dev/null +++ b/include/asm-nios2nommu/local.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2NOMMU_LOCAL_H +#define __NIOS2NOMMU_LOCAL_H + +#include + +#endif /* __NIOS2NOMMU_LOCAL_H */ diff --git a/include/asm-nios2nommu/mc146818rtc.h b/include/asm-nios2nommu/mc146818rtc.h new file mode 100644 index 0000000..3492fc0 --- /dev/null +++ b/include/asm-nios2nommu/mc146818rtc.h @@ -0,0 +1,29 @@ +/* + * Machine dependent access functions for RTC registers. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef _NIOS2_MC146818RTC_H +#define _NIOS2_MC146818RTC_H + +/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */ + +#endif /* _NIOS2_MC146818RTC_H */ diff --git a/include/asm-nios2nommu/mman.h b/include/asm-nios2nommu/mman.h new file mode 100644 index 0000000..516ab26 --- /dev/null +++ b/include/asm-nios2nommu/mman.h @@ -0,0 +1,68 @@ +/* + * Copied from the m68k port. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2_MMAN_H__ +#define __NIOS2_MMAN_H__ + +#define PROT_READ 0x1 /* page can be read */ +#define PROT_WRITE 0x2 /* page can be written */ +#define PROT_EXEC 0x4 /* page can be executed */ +#define PROT_SEM 0x8 /* page may be used for atomic ops */ +#define PROT_NONE 0x0 /* page can not be accessed */ +#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ +#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ + +#define MAP_SHARED 0x01 /* Share changes */ +#define MAP_PRIVATE 0x02 /* Changes are private */ +#define MAP_TYPE 0x0f /* Mask for type of mapping */ +#define MAP_FIXED 0x10 /* Interpret addr exactly */ +#define MAP_ANONYMOUS 0x20 /* don't use a file */ + +#define MAP_GROWSDOWN 0x0100 /* stack-like segment */ +#define MAP_DENYWRITE 0x0800 /* ETXTBSY */ +#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */ +#define MAP_LOCKED 0x2000 /* pages are locked */ +#define MAP_NORESERVE 0x4000 /* don't check for reservations */ +#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ +#define MAP_NONBLOCK 0x10000 /* do not block on IO */ + +#define MS_ASYNC 1 /* sync memory asynchronously */ +#define MS_INVALIDATE 2 /* invalidate the caches */ +#define MS_SYNC 4 /* synchronous memory sync */ + +#define MCL_CURRENT 1 /* lock all current mappings */ +#define MCL_FUTURE 2 /* lock all future mappings */ + +#define MADV_NORMAL 0x0 /* default page-in behavior */ +#define MADV_RANDOM 0x1 /* page-in minimum required */ +#define MADV_SEQUENTIAL 0x2 /* read-ahead aggressively */ +#define MADV_WILLNEED 0x3 /* pre-fault pages */ +#define MADV_DONTNEED 0x4 /* discard these pages */ + +/* compatibility flags */ +#define MAP_ANON MAP_ANONYMOUS +#define MAP_FILE 0 + +#endif /* __NIOS2_MMAN_H__ */ + diff --git a/include/asm-nios2nommu/mmu.h b/include/asm-nios2nommu/mmu.h new file mode 100644 index 0000000..b6e579d --- /dev/null +++ b/include/asm-nios2nommu/mmu.h @@ -0,0 +1,36 @@ +/* + * + * Taken from the m68knommu. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2NOMMU_MMU_H +#define __NIOS2NOMMU_MMU_H + +/* Copyright (C) 2002, David McCullough */ + +typedef struct { + struct vm_list_struct *vmlist; + unsigned long end_brk; +} mm_context_t; + +#endif /* __NIOS2NOMMU_MMU_H */ diff --git a/include/asm-nios2nommu/mmu_context.h b/include/asm-nios2nommu/mmu_context.h new file mode 100644 index 0000000..795cd09 --- /dev/null +++ b/include/asm-nios2nommu/mmu_context.h @@ -0,0 +1,57 @@ +/* + * + * Taken from the m68knommu. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2NOMMU_MMU_CONTEXT_H +#define __NIOS2NOMMU_MMU_CONTEXT_H + +#include +#include +#include + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +extern inline int +init_new_context(struct task_struct *tsk, struct mm_struct *mm) +{ + // mm->context = virt_to_phys(mm->pgd); + return(0); +} + +#define destroy_context(mm) do { } while(0) + +static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk) +{ +} + +#define deactivate_mm(tsk,mm) do { } while (0) + +extern inline void activate_mm(struct mm_struct *prev_mm, + struct mm_struct *next_mm) +{ +} + +#endif diff --git a/include/asm-nios2nommu/module.h b/include/asm-nios2nommu/module.h new file mode 100644 index 0000000..864f335 --- /dev/null +++ b/include/asm-nios2nommu/module.h @@ -0,0 +1,36 @@ +#ifndef _NIOS2_MODULE_H +#define _NIOS2_MODULE_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/module.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +struct mod_arch_specific +{ +}; + +#define Elf_Shdr Elf32_Shdr +#define Elf_Sym Elf32_Sym +#define Elf_Ehdr Elf32_Ehdr + +#endif /* _NIOS_MODULE_H */ diff --git a/include/asm-nios2nommu/msgbuf.h b/include/asm-nios2nommu/msgbuf.h new file mode 100644 index 0000000..4d090f7 --- /dev/null +++ b/include/asm-nios2nommu/msgbuf.h @@ -0,0 +1,56 @@ +/* + * Taken from the m68k. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2_MSGBUF_H +#define _NIOS2_MSGBUF_H + +/* + * The msqid64_ds structure for nios2 architecture. + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct msqid64_ds { + struct ipc64_perm msg_perm; + __kernel_time_t msg_stime; /* last msgsnd time */ + unsigned long __unused1; + __kernel_time_t msg_rtime; /* last msgrcv time */ + unsigned long __unused2; + __kernel_time_t msg_ctime; /* last change time */ + unsigned long __unused3; + unsigned long msg_cbytes; /* current number of bytes on queue */ + unsigned long msg_qnum; /* number of messages in queue */ + unsigned long msg_qbytes; /* max number of bytes on queue */ + __kernel_pid_t msg_lspid; /* pid of last msgsnd */ + __kernel_pid_t msg_lrpid; /* last receive pid */ + unsigned long __unused4; + unsigned long __unused5; +}; + +#endif /* _NIOS2_MSGBUF_H */ + diff --git a/include/asm-nios2nommu/mutex.h b/include/asm-nios2nommu/mutex.h new file mode 100644 index 0000000..458c1f7 --- /dev/null +++ b/include/asm-nios2nommu/mutex.h @@ -0,0 +1,9 @@ +/* + * Pull in the generic implementation for the mutex fastpath. + * + * TODO: implement optimized primitives instead, or leave the generic + * implementation in place, or pick the atomic_xchg() based generic + * implementation. (see asm-generic/mutex-xchg.h for details) + */ + +#include diff --git a/include/asm-nios2nommu/namei.h b/include/asm-nios2nommu/namei.h new file mode 100644 index 0000000..d925c4e --- /dev/null +++ b/include/asm-nios2nommu/namei.h @@ -0,0 +1,36 @@ +/* + * linux/include/asm-nios/namei.h + * Moved from m68k version + * Included from linux/fs/namei.c + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef __NIOS2_NAMEI_H +#define __NIOS2_NAMEI_H + +/* This dummy routine maybe changed to something useful + * for /usr/gnemul/ emulation stuff. + * Look at asm-sparc/namei.h for details. + */ + +#define __emul_prefix() NULL + +#endif diff --git a/include/asm-nios2nommu/ndma.h b/include/asm-nios2nommu/ndma.h new file mode 100644 index 0000000..6b4604d --- /dev/null +++ b/include/asm-nios2nommu/ndma.h @@ -0,0 +1,64 @@ +#ifndef __NDMA_H__ + #define __NDMA_H__ + + #ifndef __ASSEMBLY__ + +// DMA Registers +typedef volatile struct +{ + int np_dmastatus; // status register + int np_dmareadaddress; // read address + int np_dmawriteaddress; // write address + int np_dmalength; // length in bytes + int np_dmareserved1; // reserved + int np_dmareserved2; // reserved + int np_dmacontrol; // control register + int np_dmareserved3; // control register alternate +} np_dma; + +// DMA Register Bits +enum +{ + np_dmacontrol_byte_bit = 0, // Byte transaction + np_dmacontrol_hw_bit = 1, // Half-word transaction + np_dmacontrol_word_bit = 2, // Word transaction + np_dmacontrol_go_bit = 3, // enable execution + np_dmacontrol_i_en_bit = 4, // enable interrupt + np_dmacontrol_reen_bit = 5, // Enable read end-of-packet + np_dmacontrol_ween_bit = 6, // Enable write end-of-packet + np_dmacontrol_leen_bit = 7, // Enable length=0 transaction end + np_dmacontrol_rcon_bit = 8, // Read from a fixed address + np_dmacontrol_wcon_bit = 9, // Write to a fixed address + np_dmacontrol_doubleword_bit = 10, // Double-word transaction + np_dmacontrol_quadword_bit = 11, // Quad-word transaction + + np_dmastatus_done_bit = 0, // 1 when done. Status write clears. + np_dmastatus_busy_bit = 1, // 1 when busy. + np_dmastatus_reop_bit = 2, // read-eop received + np_dmastatus_weop_bit = 3, // write-eop received + np_dmastatus_len_bit = 4, // requested length transacted + + np_dmacontrol_byte_mask = (1 << 0), // Byte transaction + np_dmacontrol_hw_mask = (1 << 1), // Half-word transaction + np_dmacontrol_word_mask = (1 << 2), // Word transaction + np_dmacontrol_go_mask = (1 << 3), // enable execution + np_dmacontrol_i_en_mask = (1 << 4), // enable interrupt + np_dmacontrol_reen_mask = (1 << 5), // Enable read end-of-packet + np_dmacontrol_ween_mask = (1 << 6), // Enable write end-of-packet + np_dmacontrol_leen_mask = (1 << 7), // Enable length=0 transaction end + np_dmacontrol_rcon_mask = (1 << 8), // Read from a fixed address + np_dmacontrol_wcon_mask = (1 << 9), // Write to a fixed address + np_dmacontrol_doubleword_mask = (1 << 10), // Double-word transaction + np_dmacontrol_quadword_mask = (1 << 11), // Quad-word transaction + + np_dmastatus_done_mask = (1 << 0), // 1 when done. Status write clears. + np_dmastatus_busy_mask = (1 << 1), // 1 when busy. + np_dmastatus_reop_mask = (1 << 2), // read-eop received + np_dmastatus_weop_mask = (1 << 3), // write-eop received + np_dmastatus_len_mask = (1 << 4), // requested length transacted +}; + + #endif /* __ASSEMBLY__ */ + +#endif +/* End of File */ diff --git a/include/asm-nios2nommu/nios.h b/include/asm-nios2nommu/nios.h new file mode 100644 index 0000000..df17672 --- /dev/null +++ b/include/asm-nios2nommu/nios.h @@ -0,0 +1,7 @@ +#ifndef __NIOS_H__ +#define __NIOS_H__ + +#include + +#endif + diff --git a/include/asm-nios2nommu/page.h b/include/asm-nios2nommu/page.h new file mode 100644 index 0000000..764e73c --- /dev/null +++ b/include/asm-nios2nommu/page.h @@ -0,0 +1,124 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2_PAGE_H +#define _NIOS2_PAGE_H + +/* copied from m68knommu arch */ + +/* PAGE_SHIFT determines the page size */ + +#define PAGE_SHIFT (12) +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) + +#ifdef __KERNEL__ + +#include + +#if PAGE_SHIFT < 13 +#define THREAD_SIZE (8192) +#else +#define THREAD_SIZE PAGE_SIZE +#endif + +#ifndef __ASSEMBLY__ + +#define get_user_page(vaddr) __get_free_page(GFP_KERNEL) +#define free_user_page(page, addr) free_page(addr) + +#define clear_page(page) memset((page), 0, PAGE_SIZE) +#define copy_page(to,from) memcpy((to), (from), PAGE_SIZE) + +#define clear_user_page(page, vaddr, pg) clear_page(page) +#define copy_user_page(to, from, vaddr, pg) copy_page(to, from) + +/* + * These are used to make use of C type-checking.. + */ +typedef struct { unsigned long pte; } pte_t; +typedef struct { unsigned long pmd[16]; } pmd_t; +typedef struct { unsigned long pgd; } pgd_t; +typedef struct { unsigned long pgprot; } pgprot_t; + +#define pte_val(x) ((x).pte) +#define pmd_val(x) ((&x)->pmd[0]) +#define pgd_val(x) ((x).pgd) +#define pgprot_val(x) ((x).pgprot) + +#define __pte(x) ((pte_t) { (x) } ) +#define __pmd(x) ((pmd_t) { (x) } ) +#define __pgd(x) ((pgd_t) { (x) } ) +#define __pgprot(x) ((pgprot_t) { (x) } ) + +/* to align the pointer to the (next) page boundary */ +#define PAGE_ALIGN(addr) (((addr)+PAGE_SIZE-1)&PAGE_MASK) + +extern unsigned long memory_start; +extern unsigned long memory_end; + +#endif /* !__ASSEMBLY__ */ +#include +#define PAGE_OFFSET ((int)(nasys_program_mem)) + +#ifndef __ASSEMBLY__ + +#define __pa(vaddr) virt_to_phys((void *)(vaddr)) +#define __va(paddr) phys_to_virt((unsigned long)(paddr)) + +#define MAP_NR(addr) (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) + +#define virt_to_pfn(kaddr) (__pa(kaddr) >> PAGE_SHIFT) +#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT) + +#define virt_to_page(addr) ((void*) addr < (void*) memory_end ? mem_map + \ + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT) : 0UL) +#define page_to_virt(page) ((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET) +#define VALID_PAGE(page) (((page) - mem_map) < max_mapnr) + +#define pfn_to_page(pfn) virt_to_page(pfn_to_virt(pfn)) +#define page_to_pfn(page) virt_to_pfn(page_to_virt(page)) +#define pfn_valid(pfn) ((pfn) < max_mapnr) + +#define virt_addr_valid(kaddr) (((void *)(kaddr) >= (void *)PAGE_OFFSET) && \ + ((void *)(kaddr) < (void *)memory_end)) + +#ifdef CONFIG_NO_KERNEL_MSG +#define BUG_PRINT() +#else +#define BUG_PRINT() printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__) +#endif + +#ifdef na_cpu_oci_core +#define BUG_PANIC() asm volatile ("break") /* drop to debugger */ +#else +// #define BUG_PANIC() while(1) +#define BUG_PANIC() panic("BUG!") +#endif + +#endif /* __ASSEMBLY__ */ + +#include + +#endif /* __KERNEL__ */ + +#endif /* _NIOS2_PAGE_H */ diff --git a/include/asm-nios2nommu/param.h b/include/asm-nios2nommu/param.h new file mode 100644 index 0000000..e75a355 --- /dev/null +++ b/include/asm-nios2nommu/param.h @@ -0,0 +1,49 @@ +#ifndef _NIOS_PARAM_H +#define _NIOS_PARAM_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/param.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#ifndef HZ +#define HZ 100 +#endif + +#ifdef __KERNEL__ +#define USER_HZ HZ +#define CLOCKS_PER_SEC (USER_HZ) +#endif + +#define EXEC_PAGESIZE 4096 + +#ifndef NGROUPS +#define NGROUPS 32 +#endif + +#ifndef NOGROUP +#define NOGROUP (-1) +#endif + +#define MAXHOSTNAMELEN 64 /* max length of hostname */ + +#endif diff --git a/include/asm-nios2nommu/pci.h b/include/asm-nios2nommu/pci.h new file mode 100644 index 0000000..be3b3b2 --- /dev/null +++ b/include/asm-nios2nommu/pci.h @@ -0,0 +1,126 @@ +#ifndef __ASM_SH_PCI_H +#define __ASM_SH_PCI_H + +#ifdef __KERNEL__ + +#include + +/* Can be used to override the logic in pci_scan_bus for skipping + already-configured bus numbers - to be used for buggy BIOSes + or architectures with incomplete PCI setup by the loader */ + +#define pcibios_assign_all_busses() 1 +#define pcibios_scan_all_fns(a, b) 0 + +/* + * A board can define one or more PCI channels that represent built-in (or + * external) PCI controllers. + */ +struct pci_channel { + struct pci_ops *pci_ops; + struct resource *io_resource; + struct resource *mem_resource; + int first_devfn; + int last_devfn; +}; + +/* + * Each board initializes this array and terminates it with a NULL entry. + */ +extern struct pci_channel board_pci_channels[]; + +#define PCIBIOS_MIN_IO board_pci_channels->io_resource->start +#define PCIBIOS_MIN_MEM board_pci_channels->mem_resource->start + +struct pci_dev; + +extern void pcibios_set_master(struct pci_dev *dev); + +static inline void pcibios_penalize_isa_irq(int irq, int active) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +/* Dynamic DMA mapping stuff. + * SuperH has everything mapped statically like x86. + */ + +/* The PCI address space does equal the physical memory + * address space. The networking and block device layers use + * this boolean for bounce buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS (1) + +#include +#include +#include +#include +#include + +/* pci_unmap_{single,page} being a nop depends upon the + * configuration. + */ +#ifdef CONFIG_SH_PCIDMA_NONCOHERENT +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) +#else +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) +#define pci_unmap_addr(PTR, ADDR_NAME) (0) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) +#define pci_unmap_len(PTR, LEN_NAME) (0) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) +#endif + +/* Not supporting more than 32-bit PCI bus addresses now, but + * must satisfy references to this function. Change if needed. + */ +#define pci_dac_dma_supported(pci_dev, mask) (0) + +/* These macros should be used after a pci_map_sg call has been done + * to get bus addresses of each of the SG entries and their lengths. + * You should only work with the number of sg entries pci_map_sg + * returns, or alternatively stop on the first sg_dma_len(sg) which + * is 0. + */ +#define sg_dma_address(sg) (virt_to_bus((sg)->dma_address)) +#define sg_dma_len(sg) ((sg)->length) + +#ifdef CONFIG_PCI +static inline void pci_dma_burst_advice(struct pci_dev *pdev, + enum pci_dma_burst_strategy *strat, + unsigned long *strategy_parameter) +{ + *strat = PCI_DMA_BURST_INFINITY; + *strategy_parameter = ~0UL; +} +#endif + +/* Board-specific fixup routines. */ +extern void pcibios_fixup(void); +extern void pcibios_fixup_irqs(void); + +#ifdef CONFIG_PCI_AUTO +extern int pciauto_assign_resources(int busno, struct pci_channel *hose); +#endif + +#endif /* __KERNEL__ */ + +/* generic pci stuff */ +#include + +/* generic DMA-mapping stuff */ +#include + +#endif /* __ASM_SH_PCI_H */ + diff --git a/include/asm-nios2nommu/percpu.h b/include/asm-nios2nommu/percpu.h new file mode 100644 index 0000000..cd6d4a3 --- /dev/null +++ b/include/asm-nios2nommu/percpu.h @@ -0,0 +1,30 @@ +#ifndef __ARCH_NIOS2NOMMU_PERCPU__ +#define __ARCH_NIOS2NOMMU_PERCPU__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/percpu.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#endif /* __ARCH_NIOS2NOMMU_PERCPU__ */ diff --git a/include/asm-nios2nommu/pgalloc.h b/include/asm-nios2nommu/pgalloc.h new file mode 100644 index 0000000..a997ada --- /dev/null +++ b/include/asm-nios2nommu/pgalloc.h @@ -0,0 +1,32 @@ +#ifndef _NIOS2NOMMU_PGALLOC_H +#define _NIOS2NOMMU_PGALLOC_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/pgalloc.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#define check_pgt_cache() do { } while (0) + +#endif /* _NIOS2NOMMU_PGALLOC_H */ diff --git a/include/asm-nios2nommu/pgtable.h b/include/asm-nios2nommu/pgtable.h new file mode 100644 index 0000000..4124a33 --- /dev/null +++ b/include/asm-nios2nommu/pgtable.h @@ -0,0 +1,112 @@ +#ifndef _NIOS_PGTABLE_H +#define _NIOS_PGTABLE_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/pgtable.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#include + +//vic - this bit copied from m68knommu version +#include +#include +#include + +typedef pte_t *pte_addr_t; + +#define pgd_present(pgd) (1) /* pages are always present on NO_MM */ +#define pgd_none(pgd) (0) +#define pgd_bad(pgd) (0) +#define pgd_clear(pgdp) +#define kern_addr_valid(addr) (1) +#define pmd_offset(a, b) ((void *)0) + +#define PAGE_NONE __pgprot(0) /* these mean nothing to NO_MM */ +#define PAGE_SHARED __pgprot(0) /* these mean nothing to NO_MM */ +#define PAGE_COPY __pgprot(0) /* these mean nothing to NO_MM */ +#define PAGE_READONLY __pgprot(0) /* these mean nothing to NO_MM */ +#define PAGE_KERNEL __pgprot(0) /* these mean nothing to NO_MM */ +//vic - this bit copied from m68knommu version + +extern void paging_init(void); +#define swapper_pg_dir ((pgd_t *) 0) + +#define __swp_type(x) (0) +#define __swp_offset(x) (0) +#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) + +static inline int pte_file(pte_t pte) { return 0; } + +/* + * ZERO_PAGE is a global shared page that is always zero: used + * for zero-mapped memory areas etc.. + */ +#define ZERO_PAGE(vaddr) (virt_to_page(0)) + +extern unsigned int kobjsize(const void *objp); +extern int is_in_rom(unsigned long); + +/* + * No page table caches to initialise + */ +#define pgtable_cache_init() do { } while (0) + +#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ + remap_pfn_range(vma, vaddr, pfn, size, prot) + +extern inline void flush_cache_mm(struct mm_struct *mm) +{ +} + +extern inline void flush_cache_range(struct mm_struct *mm, + unsigned long start, + unsigned long end) +{ +} + +/* Push the page at kernel virtual address and clear the icache */ +extern inline void flush_page_to_ram (unsigned long address) +{ +} + +/* Push n pages at kernel virtual address and clear the icache */ +extern inline void flush_pages_to_ram (unsigned long address, int n) +{ +} + +/* + * All 32bit addresses are effectively valid for vmalloc... + * Sort of meaningless for non-VM targets. + */ +#define VMALLOC_START 0 +#define VMALLOC_END 0xffffffff + +#define arch_enter_lazy_mmu_mode() do {} while (0) +#define arch_leave_lazy_mmu_mode() do {} while (0) +#define arch_flush_lazy_mmu_mode() do {} while (0) +#define arch_enter_lazy_cpu_mode() do {} while (0) +#define arch_leave_lazy_cpu_mode() do {} while (0) +#define arch_flush_lazy_cpu_mode() do {} while (0) + +#endif /* _NIOS_PGTABLE_H */ diff --git a/include/asm-nios2nommu/pio_struct.h b/include/asm-nios2nommu/pio_struct.h new file mode 100644 index 0000000..8ce5176 --- /dev/null +++ b/include/asm-nios2nommu/pio_struct.h @@ -0,0 +1,14 @@ +// PIO Peripheral + +// PIO Registers +typedef volatile struct + { + int np_piodata; // read/write, up to 32 bits + int np_piodirection; // write/readable, up to 32 bits, 1->output bit + int np_piointerruptmask; // write/readable, up to 32 bits, 1->enable interrupt + int np_pioedgecapture; // read, up to 32 bits, cleared by any write + } np_pio; + +// PIO Routines +void nr_pio_showhex(int value); // shows low byte on pio named na_seven_seg_pio + diff --git a/include/asm-nios2nommu/poll.h b/include/asm-nios2nommu/poll.h new file mode 100644 index 0000000..f6b9ab8 --- /dev/null +++ b/include/asm-nios2nommu/poll.h @@ -0,0 +1,48 @@ +#ifndef __NIOS2_POLL_H +#define __NIOS2_POLL_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/poll.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#define POLLIN 1 +#define POLLPRI 2 +#define POLLOUT 4 +#define POLLERR 8 +#define POLLHUP 16 +#define POLLNVAL 32 +#define POLLRDNORM 64 +#define POLLWRNORM POLLOUT +#define POLLRDBAND 128 +#define POLLWRBAND 256 +#define POLLMSG 0x0400 +#define POLLREMOVE 0x1000 +#define POLLRDHUP 0x2000 + +struct pollfd { + int fd; + short events; + short revents; +}; + +#endif diff --git a/include/asm-nios2nommu/posix_types.h b/include/asm-nios2nommu/posix_types.h new file mode 100644 index 0000000..0b019b5 --- /dev/null +++ b/include/asm-nios2nommu/posix_types.h @@ -0,0 +1,89 @@ +#ifndef __ARCH_NIOS2_POSIX_TYPES_H +#define __ARCH_NIOS2_POSIX_TYPES_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/posix_types.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_timer_t; +typedef int __kernel_clockid_t; +typedef int __kernel_daddr_t; +typedef char * __kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; + +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; +typedef unsigned short __kernel_old_dev_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { +#if defined(__KERNEL__) || defined(__USE_ALL) + int val[2]; +#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */ + int __val[2]; +#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */ +} __kernel_fsid_t; + +#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) + +#undef __FD_SET +#define __FD_SET(d, set) ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d)) + +#undef __FD_CLR +#define __FD_CLR(d, set) ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d)) + +#undef __FD_ISSET +#define __FD_ISSET(d, set) ((set)->fds_bits[__FDELT(d)] & __FDMASK(d)) + +#undef __FD_ZERO +#define __FD_ZERO(fdsetp) (memset (fdsetp, 0, sizeof(*(fd_set *)fdsetp))) + +#endif /* defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) */ + +#endif diff --git a/include/asm-nios2nommu/preem_latency.h b/include/asm-nios2nommu/preem_latency.h new file mode 100644 index 0000000..6defb5c --- /dev/null +++ b/include/asm-nios2nommu/preem_latency.h @@ -0,0 +1,39 @@ +#ifndef _ASM_PREEM_LATENCY_H +#define _ASM_PREEM_LATENCY_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/preem_latency.h + * + * timing support for preempt-stats patch + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#define readclock(low) \ +do {\ + *(volatile unsigned long *)na_Counter_64_bit=1; \ + low=*(volatile unsigned long *)na_Counter_64_bit; \ +} while (0) +#define readclock_init() + +#endif /* _ASM_PREEM_LATENCY_H */ diff --git a/include/asm-nios2nommu/processor.h b/include/asm-nios2nommu/processor.h new file mode 100644 index 0000000..5332f94 --- /dev/null +++ b/include/asm-nios2nommu/processor.h @@ -0,0 +1,148 @@ +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/processor.h + * + * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 2001 Ken Hill (khill@microtronix.com) + * Vic Phillips (vic@microtronix.com) + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * hacked from: + * include/asm-sparc/processor.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * Nov/02/2003 dgt Fix task_size + * + ---------------------------------------------------------------------*/ + +#ifndef __ASM_NIOS_PROCESSOR_H +#define __ASM_NIOS_PROCESSOR_H + +#define NIOS2_FLAG_KTHREAD 0x00000001 /* task is a kernel thread */ +#define NIOS2_FLAG_COPROC 0x00000002 /* Thread used coprocess */ +#define NIOS2_FLAG_DEBUG 0x00000004 /* task is being debugged */ + +#define NIOS2_OP_NOP 0x1883a +#define NIOS2_OP_BREAK 0x3da03a + +#ifndef __ASSEMBLY__ + +/* + * Default implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ __label__ _l; _l: &&_l;}) + +#include +#include + +#include +#include +#include +#include +#include /* for get_hi_limit */ + +/* + * Bus types + */ +#define EISA_bus 0 +#define EISA_bus__is_a_macro /* for versions in ksyms.c */ +#define MCA_bus 0 +#define MCA_bus__is_a_macro /* for versions in ksyms.c */ + +/* + * The nios has no problems with write protection + */ +#define wp_works_ok 1 +#define wp_works_ok__is_a_macro /* for versions in ksyms.c */ + +/* Whee, this is STACK_TOP and the lowest kernel address too... */ +#if 0 +#define KERNBASE 0x00000000 /* First address the kernel will eventually be */ +#define TASK_SIZE (KERNBASE) +#define MAX_USER_ADDR TASK_SIZE +#define MMAP_SEARCH_START (TASK_SIZE/3) +#endif + +#define TASK_SIZE ((unsigned int) nasys_program_mem_end) //...this is better... + +/* + * This decides where the kernel will search for a free chunk of vm + * space during mmap's. We won't be using it + */ +#define TASK_UNMAPPED_BASE 0 + +/* The Nios processor specific thread struct. */ +struct thread_struct { + struct pt_regs *kregs; + + /* For signal handling */ + unsigned long sig_address; + unsigned long sig_desc; + + /* Context switch saved kernel state. */ + unsigned long ksp; + unsigned long kpsr; + unsigned long kesr; + + /* Flags are defined below */ + + unsigned long flags; + int current_ds; + struct exec core_exec; /* just what it says. */ +}; + +#define INIT_MMAP { &init_mm, (0), (0), \ + __pgprot(0x0) , VM_READ | VM_WRITE | VM_EXEC } + +#define INIT_THREAD { \ + .kregs = 0, \ + .sig_address = 0, \ + .sig_desc = 0, \ + .ksp = 0, \ + .kpsr = 0, \ + .kesr = PS_S, \ + .flags = NIOS2_FLAG_KTHREAD, \ + .current_ds = __KERNEL_DS, \ + .core_exec = INIT_EXEC \ +} + +/* Free all resources held by a thread. */ +extern void release_thread(struct task_struct *); + +extern unsigned long thread_saved_pc(struct task_struct *t); + +extern void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp); + +/* Prepare to copy thread state - unlazy all lazy status */ +#define prepare_to_copy(tsk) do { } while (0) + +extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); + +unsigned long get_wchan(struct task_struct *p); + +#define KSTK_EIP(tsk) ((tsk)->thread.kregs->ea) +#define KSTK_ESP(tsk) ((tsk)->thread.kregs->sp) + +#ifdef __KERNEL__ +/* Allocation and freeing of basic task resources. */ + +//;dgt2;#define alloc_task_struct() ((struct task_struct *) xx..see..linux..fork..xx __get_free_pages(GFP_KERNEL,1)) +//;dgt2;#define get_task_struct(tsk) xx..see..linux..sched.h...atomic_inc(&mem_map[MAP_NR(tsk)].count) + +#endif + +#define cpu_relax() do { } while (0) +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_NIOS_PROCESSOR_H */ diff --git a/include/asm-nios2nommu/ptrace.h b/include/asm-nios2nommu/ptrace.h new file mode 100644 index 0000000..d669e08 --- /dev/null +++ b/include/asm-nios2nommu/ptrace.h @@ -0,0 +1,140 @@ +/* + * Taken from the m68k port. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef _NIOS2NOMMU_PTRACE_H +#define _NIOS2NOMMU_PTRACE_H + +#ifndef __ASSEMBLY__ + +#define PTR_R0 0 +#define PTR_R1 1 +#define PTR_R2 2 +#define PTR_R3 3 +#define PTR_R4 4 +#define PTR_R5 5 +#define PTR_R6 6 +#define PTR_R7 7 +#define PTR_R8 8 +#define PTR_R9 9 +#define PTR_R10 10 +#define PTR_R11 11 +#define PTR_R12 12 +#define PTR_R13 13 +#define PTR_R14 14 +#define PTR_R15 15 +#define PTR_R16 16 +#define PTR_R17 17 +#define PTR_R18 18 +#define PTR_R19 19 +#define PTR_R20 20 +#define PTR_R21 21 +#define PTR_R22 22 +#define PTR_R23 23 +#define PTR_R24 24 +#define PTR_R25 25 +#define PTR_GP 26 +#define PTR_SP 27 +#define PTR_FP 28 +#define PTR_EA 29 +#define PTR_BA 30 +#define PTR_RA 31 +#define PTR_STATUS 32 +#define PTR_ESTATUS 33 +#define PTR_BSTATUS 34 +#define PTR_IENABLE 35 +#define PTR_IPENDING 36 + +/* this struct defines the way the registers are stored on the + stack during a system call. + + There is a fake_regs in setup.c that has to match pt_regs.*/ + +struct pt_regs { + unsigned long r8; + unsigned long r9; + unsigned long r10; + unsigned long r11; + unsigned long r12; + unsigned long r13; + unsigned long r14; + unsigned long r15; + unsigned long r1; + unsigned long r2; + unsigned long r3; + unsigned long r4; + unsigned long r5; + unsigned long r6; + unsigned long r7; + unsigned long orig_r2; + unsigned long ra; + unsigned long fp; + unsigned long sp; + unsigned long gp; + unsigned long estatus; + unsigned long status_extension; + unsigned long ea; +}; + + +/* + * This is the extended stack used by signal handlers and the context + * switcher: it's pushed after the normal "struct pt_regs". + */ +struct switch_stack { + unsigned long r16; + unsigned long r17; + unsigned long r18; + unsigned long r19; + unsigned long r20; + unsigned long r21; + unsigned long r22; + unsigned long r23; + unsigned long fp; + unsigned long gp; + unsigned long ra; +}; + +#ifdef __KERNEL__ +/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */ +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#ifdef CONFIG_FPU +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 +#endif + +#ifndef PS_S +#define PS_S (0x00000001) +#endif +#ifndef PS_T +#define PS_T (0x00000002) +#endif + +#define user_mode(regs) (!((regs)->status_extension & PS_S)) +#define instruction_pointer(regs) ((regs)->ra) +#define profile_pc(regs) instruction_pointer(regs) +extern void show_regs(struct pt_regs *); + +#endif /* __KERNEL__ */ +#endif /* __ASSEMBLY__ */ +#endif /* _NIOS2NOMMU_PTRACE_H */ diff --git a/include/asm-nios2nommu/resource.h b/include/asm-nios2nommu/resource.h new file mode 100644 index 0000000..9c2499a --- /dev/null +++ b/include/asm-nios2nommu/resource.h @@ -0,0 +1,6 @@ +#ifndef __ASM_SH_RESOURCE_H +#define __ASM_SH_RESOURCE_H + +#include + +#endif /* __ASM_SH_RESOURCE_H */ diff --git a/include/asm-nios2nommu/rmap.h b/include/asm-nios2nommu/rmap.h new file mode 100644 index 0000000..b3664cc --- /dev/null +++ b/include/asm-nios2nommu/rmap.h @@ -0,0 +1,2 @@ +/* Do not need anything here */ + diff --git a/include/asm-nios2nommu/scatterlist.h b/include/asm-nios2nommu/scatterlist.h new file mode 100644 index 0000000..20898e2 --- /dev/null +++ b/include/asm-nios2nommu/scatterlist.h @@ -0,0 +1,13 @@ +#ifndef __ASM_SH_SCATTERLIST_H +#define __ASM_SH_SCATTERLIST_H + +struct scatterlist { + struct page * page; /* Location for highmem page, if any */ + unsigned int offset;/* for highmem, page offset */ + dma_addr_t dma_address; + unsigned int length; +}; + +#define ISA_DMA_THRESHOLD (0xffffffff) + +#endif /* !(__ASM_SH_SCATTERLIST_H) */ diff --git a/include/asm-nios2nommu/sections.h b/include/asm-nios2nommu/sections.h new file mode 100644 index 0000000..61b3f71 --- /dev/null +++ b/include/asm-nios2nommu/sections.h @@ -0,0 +1,30 @@ +#ifndef _NIOS2NOMMU_SECTIONS_H +#define _NIOS2NOMMU_SECTIONS_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/sections.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#endif /* _NIOS2NOMMU_SECTIONS_H */ diff --git a/include/asm-nios2nommu/segment.h b/include/asm-nios2nommu/segment.h new file mode 100644 index 0000000..25871b3 --- /dev/null +++ b/include/asm-nios2nommu/segment.h @@ -0,0 +1,75 @@ +#ifndef _NIOS2NOMMU_SEGMENT_H +#define _NIOS2NOMMU_SEGMENT_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/segment.h + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* define constants */ +/* Address spaces (FC0-FC2) */ +#define USER_DATA (1) +#ifndef __USER_DS +#define __USER_DS (USER_DATA) +#endif +#define USER_PROGRAM (2) +#define SUPER_DATA (5) +#ifndef __KERNEL_DS +#define __KERNEL_DS (SUPER_DATA) +#endif +#define SUPER_PROGRAM (6) +#define CPU_SPACE (7) + +#ifndef __ASSEMBLY__ + +typedef struct { + unsigned long seg; +} mm_segment_t; + +#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) }) +#define USER_DS MAKE_MM_SEG(__USER_DS) +#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS) + +/* + * Get/set the SFC/DFC registers for MOVES instructions + */ + +static inline mm_segment_t get_fs(void) +{ + return USER_DS; +} + +static inline mm_segment_t get_ds(void) +{ + /* return the supervisor data space code */ + return KERNEL_DS; +} + +static inline void set_fs(mm_segment_t val) +{ +} + +#define segment_eq(a,b) ((a).seg == (b).seg) + +#endif /* __ASSEMBLY__ */ + +#endif /* _NIOS2NOMMU_SEGMENT_H */ diff --git a/include/asm-nios2nommu/semaphore-helper.h b/include/asm-nios2nommu/semaphore-helper.h new file mode 100644 index 0000000..a8905d1 --- /dev/null +++ b/include/asm-nios2nommu/semaphore-helper.h @@ -0,0 +1,99 @@ +#ifndef _NIOS2NOMMU_SEMAPHORE_HELPER_H +#define _NIOS2NOMMU_SEMAPHORE_HELPER_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/semaphore.h + * + * SMP- and interrupt-safe semaphores helper functions. + * + * Derived from M68knommu + * + * (C) Copyright 1996 Linus Torvalds + * m68k version by Andreas Schwab + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +/* + * These two _must_ execute atomically wrt each other. + */ +static inline void wake_one_more(struct semaphore * sem) +{ + atomic_inc(&sem->waking); +} + +static inline int waking_non_zero(struct semaphore *sem) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&semaphore_wake_lock, flags); + ret = 0; + if (atomic_read(&sem->waking) > 0) { + atomic_dec(&sem->waking); + ret = 1; + } + spin_unlock_irqrestore(&semaphore_wake_lock, flags); + return ret; +} + +/* + * waking_non_zero_interruptible: + * 1 got the lock + * 0 go to sleep + * -EINTR interrupted + */ +static inline int waking_non_zero_interruptible(struct semaphore *sem, + struct task_struct *tsk) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&semaphore_wake_lock, flags); + ret = 0; + if (atomic_read(&sem->waking) > 0) { + atomic_dec(&sem->waking); + ret = 1; + } else if (signal_pending(tsk)) { + atomic_inc(&sem->count); + ret = -EINTR; + } + spin_unlock_irqrestore(&semaphore_wake_lock, flags); + return ret; +} + +/* + * waking_non_zero_trylock: + * 1 failed to lock + * 0 got the lock + */ +static inline int waking_non_zero_trylock(struct semaphore *sem) +{ + int ret; + unsigned long flags; + + spin_lock_irqsave(&semaphore_wake_lock, flags); + ret = 1; + if (atomic_read(&sem->waking) > 0) { + atomic_dec(&sem->waking); + ret = 0; + } else + atomic_inc(&sem->count); + spin_unlock_irqrestore(&semaphore_wake_lock, flags); + return ret; +} + +#endif diff --git a/include/asm-nios2nommu/semaphore.h b/include/asm-nios2nommu/semaphore.h new file mode 100644 index 0000000..8d66c77 --- /dev/null +++ b/include/asm-nios2nommu/semaphore.h @@ -0,0 +1,152 @@ +#ifndef _NIOS2NOMMU_SEMAPHORE_H +#define _NIOS2NOMMU_SEMAPHORE_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/semaphore.h + * + * Interrupt-safe semaphores.. + * + * Derived from M68knommu + * + * (C) Copyright 1996 Linus Torvalds + * m68k version by Andreas Schwab + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#define RW_LOCK_BIAS 0x01000000 + +#ifndef __ASSEMBLY__ + +#include +#include +#include +#include + +#include +#include + +struct semaphore { + atomic_t count; + atomic_t waking; + wait_queue_head_t wait; +}; + +#define __SEMAPHORE_INITIALIZER(name, n) \ +{ \ + .count = ATOMIC_INIT(n), \ + .waking = ATOMIC_INIT(0), \ + .wait = __WAIT_QUEUE_HEAD_INITIALIZER((name).wait) \ +} + +#define __DECLARE_SEMAPHORE_GENERIC(name,count) \ + struct semaphore name = __SEMAPHORE_INITIALIZER(name,count) + +#define DECLARE_MUTEX(name) __DECLARE_SEMAPHORE_GENERIC(name,1) +#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name,0) + +static inline void sema_init (struct semaphore *sem, int val) +{ + *sem = (struct semaphore)__SEMAPHORE_INITIALIZER(*sem, val); +} + +static inline void init_MUTEX (struct semaphore *sem) +{ + sema_init(sem, 1); +} + +static inline void init_MUTEX_LOCKED (struct semaphore *sem) +{ + sema_init(sem, 0); +} + +asmlinkage void __down_failed(void /* special register calling convention */); +asmlinkage int __down_failed_interruptible(void /* params in registers */); +asmlinkage int __down_failed_trylock(void /* params in registers */); +asmlinkage void __up_wakeup(void /* special register calling convention */); + +asmlinkage void __down(struct semaphore * sem); +asmlinkage int __down_interruptible(struct semaphore * sem); +asmlinkage int __down_trylock(struct semaphore * sem); +asmlinkage void __up(struct semaphore * sem); + +extern spinlock_t semaphore_wake_lock; + +/* + * This is ugly, but we want the default case to fall through. + * "down_failed" is a special asm handler that calls the C + * routine that actually waits. + */ +static inline void down(struct semaphore * sem) +{ + might_sleep(); + + #if 0 + ...Nios2 has no atomic "decrement memory".... + #else + if (atomic_dec_return(&sem->count) < 0) + __down(sem); + #endif +} + +static inline int down_interruptible(struct semaphore * sem) +{ + int ret = 0; + + + might_sleep(); + + #if 0 + ...Nios2 has no atomic "decrement memory".... + #else + if(atomic_dec_return(&sem->count) < 0) + ret = __down_interruptible(sem); + return ret; + #endif +} + +static inline int down_trylock(struct semaphore * sem) +{ + #if 0 + ...Nios2 has no atomic "decrement memory".... + #else + int ret = 0; + + if (atomic_dec_return (&sem->count) < 0) + ret = __down_trylock(sem); + return ret; + #endif +} + +/* + * Note! This is subtle. We jump to wake people up only if + * the semaphore was negative (== somebody was waiting on it). + * The default case (no contention) will result in NO + * jumps for both down() and up(). + */ +static inline void up(struct semaphore * sem) +{ + #if 0 + ...Nios2 has no atomic "increment memory".... + #else + if (atomic_inc_return(&sem->count) <= 0) + __up(sem); + #endif +} + +#endif /* __ASSEMBLY__ */ + +#endif diff --git a/include/asm-nios2nommu/sembuf.h b/include/asm-nios2nommu/sembuf.h new file mode 100644 index 0000000..e530cab --- /dev/null +++ b/include/asm-nios2nommu/sembuf.h @@ -0,0 +1,48 @@ +#ifndef _NIOS_SEMBUF_H +#define _NIOS_SEMBUF_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/sembuf.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* + * Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct semid64_ds { + struct ipc64_perm sem_perm; /* permissions .. see ipc.h */ + __kernel_time_t sem_otime; /* last semop time */ + unsigned long __unused1; + __kernel_time_t sem_ctime; /* last change time */ + unsigned long __unused2; + unsigned long sem_nsems; /* no. of semaphores in array */ + unsigned long __unused3; + unsigned long __unused4; +}; + +#endif /* _NIOS_SEMBUF_H */ diff --git a/include/asm-nios2nommu/setup.h b/include/asm-nios2nommu/setup.h new file mode 100644 index 0000000..c5a655a --- /dev/null +++ b/include/asm-nios2nommu/setup.h @@ -0,0 +1,31 @@ +/* Copied from i386 port. + * Just a place holder. We don't want to have to test x86 before + * we include stuff + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2_SETUP_H +#define _NIOS2_SETUP_H + +#define COMMAND_LINE_SIZE 512 + +#endif /* _NIOS2_SETUP_H */ diff --git a/include/asm-nios2nommu/shmbuf.h b/include/asm-nios2nommu/shmbuf.h new file mode 100644 index 0000000..f6e6e7d --- /dev/null +++ b/include/asm-nios2nommu/shmbuf.h @@ -0,0 +1,64 @@ +#ifndef _NIOS_SHMBUF_H +#define _NIOS_SHMBUF_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/shmbuf.h + * + * Derived from m68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* Note extra padding because this structure is passed back and forth + * between kernel and user space. + * + * Pad space is left for: + * - 64-bit time_t to solve y2038 problem + * - 2 miscellaneous 32-bit values + */ + +struct shmid64_ds { + struct ipc64_perm shm_perm; /* operation perms */ + size_t shm_segsz; /* size of segment (bytes) */ + __kernel_time_t shm_atime; /* last attach time */ + unsigned long __unused1; + __kernel_time_t shm_dtime; /* last detach time */ + unsigned long __unused2; + __kernel_time_t shm_ctime; /* last change time */ + unsigned long __unused3; + __kernel_pid_t shm_cpid; /* pid of creator */ + __kernel_pid_t shm_lpid; /* pid of last operator */ + unsigned long shm_nattch; /* no. of current attaches */ + unsigned long __unused4; + unsigned long __unused5; +}; + +struct shminfo64 { + unsigned long shmmax; + unsigned long shmmin; + unsigned long shmmni; + unsigned long shmseg; + unsigned long shmall; + unsigned long __unused1; + unsigned long __unused2; + unsigned long __unused3; + unsigned long __unused4; +}; + +#endif /* _NIOS_SHMBUF_H */ diff --git a/include/asm-nios2nommu/shmparam.h b/include/asm-nios2nommu/shmparam.h new file mode 100644 index 0000000..94efe2d --- /dev/null +++ b/include/asm-nios2nommu/shmparam.h @@ -0,0 +1,30 @@ +#ifndef __NIOS2NOMMU_SHMPARAM_H__ +#define __NIOS2NOMMU_SHMPARAM_H__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/shmparam.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */ + +#endif /* __NIOS2NOMMU_SHMPARAM_H__ */ diff --git a/include/asm-nios2nommu/sigcontext.h b/include/asm-nios2nommu/sigcontext.h new file mode 100644 index 0000000..7321e7d --- /dev/null +++ b/include/asm-nios2nommu/sigcontext.h @@ -0,0 +1,35 @@ +/* + * Taken from the m68knommu. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _ASM_NIOS2NOMMU_SIGCONTEXT_H +#define _ASM_NIOS2NOMMU_SIGCONTEXT_H + +#include + +struct sigcontext { + struct pt_regs regs; + unsigned long sc_mask; /* old sigmask */ +}; + +#endif diff --git a/include/asm-nios2nommu/siginfo.h b/include/asm-nios2nommu/siginfo.h new file mode 100644 index 0000000..c047c0b --- /dev/null +++ b/include/asm-nios2nommu/siginfo.h @@ -0,0 +1,28 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2NOMMU_SIGINFO_H +#define _NIOS2NOMMU_SIGINFO_H + +#include + +#endif diff --git a/include/asm-nios2nommu/signal.h b/include/asm-nios2nommu/signal.h new file mode 100644 index 0000000..c86a20c --- /dev/null +++ b/include/asm-nios2nommu/signal.h @@ -0,0 +1,181 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2_SIGNAL_H +#define _NIOS2_SIGNAL_H + +#include + +/* Avoid too many header ordering problems. */ +struct siginfo; + +#ifdef __KERNEL__ +/* Most things should be clean enough to redefine this at will, if care + is taken to make libc match. */ + +#define _NSIG 64 +#define _NSIG_BPW 32 +#define _NSIG_WORDS (_NSIG / _NSIG_BPW) + +typedef unsigned long old_sigset_t; /* at least 32 bits */ + +typedef struct { + unsigned long sig[_NSIG_WORDS]; +} sigset_t; + +#else +/* Here we must cater to libcs that poke about in kernel headers. */ + +#define NSIG 32 +typedef unsigned long sigset_t; + +#endif /* __KERNEL__ */ + +#define SIGHUP 1 +#define SIGINT 2 +#define SIGQUIT 3 +#define SIGILL 4 +#define SIGTRAP 5 +#define SIGABRT 6 +#define SIGIOT 6 +#define SIGBUS 7 +#define SIGFPE 8 +#define SIGKILL 9 +#define SIGUSR1 10 +#define SIGSEGV 11 +#define SIGUSR2 12 +#define SIGPIPE 13 +#define SIGALRM 14 +#define SIGTERM 15 +#define SIGSTKFLT 16 +#define SIGCHLD 17 +#define SIGCONT 18 +#define SIGSTOP 19 +#define SIGTSTP 20 +#define SIGTTIN 21 +#define SIGTTOU 22 +#define SIGURG 23 +#define SIGXCPU 24 +#define SIGXFSZ 25 +#define SIGVTALRM 26 +#define SIGPROF 27 +#define SIGWINCH 28 +#define SIGIO 29 +#define SIGPOLL SIGIO +/* +#define SIGLOST 29 +*/ +#define SIGPWR 30 +#define SIGSYS 31 +#define SIGUNUSED 31 + +/* These should not be considered constants from userland. */ +#define SIGRTMIN 32 +#define SIGRTMAX _NSIG + +/* + * SA_FLAGS values: + * + * SA_ONSTACK indicates that a registered stack_t will be used. + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_RESETHAND clears the handler when the signal is delivered. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_NODEFER prevents the current signal from being masked in the handler. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + */ +#define SA_NOCLDSTOP 0x00000001 +#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ +#define SA_SIGINFO 0x00000004 +#define SA_ONSTACK 0x08000000 +#define SA_RESTART 0x10000000 +#define SA_NODEFER 0x40000000 +#define SA_RESETHAND 0x80000000 + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND + +/* + * sigaltstack controls + */ +#define SS_ONSTACK 1 +#define SS_DISABLE 2 + +#define MINSIGSTKSZ 2048 +#define SIGSTKSZ 8192 + +#include + +#ifdef __KERNEL__ +struct old_sigaction { + __sighandler_t sa_handler; + old_sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); +}; + +struct sigaction { + __sighandler_t sa_handler; + unsigned long sa_flags; + void (*sa_restorer)(void); + sigset_t sa_mask; /* mask last for extensibility */ +}; + +struct k_sigaction { + struct sigaction sa; +}; +#else +/* Here we must cater to libcs that poke about in kernel headers. */ + +struct sigaction { + union { + __sighandler_t _sa_handler; + void (*_sa_sigaction)(int, struct siginfo *, void *); + } _u; + sigset_t sa_mask; + unsigned long sa_flags; + void (*sa_restorer)(void); +}; + +#define sa_handler _u._sa_handler +#define sa_sigaction _u._sa_sigaction + +#endif /* __KERNEL__ */ + +typedef struct sigaltstack { + void *ss_sp; + int ss_flags; + size_t ss_size; +} stack_t; + +#ifdef __KERNEL__ + +#include +#undef __HAVE_ARCH_SIG_BITOPS + +#define ptrace_signal_deliver(regs, cookie) do { } while (0) + +#endif /* __KERNEL__ */ + +#endif /* _NIOS2_SIGNAL_H */ diff --git a/include/asm-nios2nommu/smp.h b/include/asm-nios2nommu/smp.h new file mode 100644 index 0000000..fb23307 --- /dev/null +++ b/include/asm-nios2nommu/smp.h @@ -0,0 +1,32 @@ +#ifndef __ASM_SMP_H +#define __ASM_SMP_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/smp.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#ifdef CONFIG_SMP +#error SMP not supported +#endif + +#endif diff --git a/include/asm-nios2nommu/socket.h b/include/asm-nios2nommu/socket.h new file mode 100644 index 0000000..5452e2b --- /dev/null +++ b/include/asm-nios2nommu/socket.h @@ -0,0 +1,79 @@ +#ifndef _ASM_SOCKET_H +#define _ASM_SOCKET_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/socket.h + * + * Derived from m68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +/* For setsockopt(2) */ +#define SOL_SOCKET 1 + +#define SO_DEBUG 1 +#define SO_REUSEADDR 2 +#define SO_TYPE 3 +#define SO_ERROR 4 +#define SO_DONTROUTE 5 +#define SO_BROADCAST 6 +#define SO_SNDBUF 7 +#define SO_RCVBUF 8 +#define SO_SNDBUFFORCE 32 +#define SO_RCVBUFFORCE 33 +#define SO_KEEPALIVE 9 +#define SO_OOBINLINE 10 +#define SO_NO_CHECK 11 +#define SO_PRIORITY 12 +#define SO_LINGER 13 +#define SO_BSDCOMPAT 14 +/* To add :#define SO_REUSEPORT 15 */ +#define SO_PASSCRED 16 +#define SO_PEERCRED 17 +#define SO_RCVLOWAT 18 +#define SO_SNDLOWAT 19 +#define SO_RCVTIMEO 20 +#define SO_SNDTIMEO 21 + +/* Security levels - as per NRL IPv6 - don't actually do anything */ +#define SO_SECURITY_AUTHENTICATION 22 +#define SO_SECURITY_ENCRYPTION_TRANSPORT 23 +#define SO_SECURITY_ENCRYPTION_NETWORK 24 + +#define SO_BINDTODEVICE 25 + +/* Socket filtering */ +#define SO_ATTACH_FILTER 26 +#define SO_DETACH_FILTER 27 + +#define SO_PEERNAME 28 +#define SO_TIMESTAMP 29 +#define SCM_TIMESTAMP SO_TIMESTAMP + +#define SO_ACCEPTCONN 30 + +#define SO_PEERSEC 31 /* ;dgt2;tmp; */ +#define SO_PASSSEC 34 +#define SO_TIMESTAMPNS 35 +#define SCM_TIMESTAMPNS SO_TIMESTAMPNS + +#endif /* _ASM_SOCKET_H */ diff --git a/include/asm-nios2nommu/sockios.h b/include/asm-nios2nommu/sockios.h new file mode 100644 index 0000000..c604aa7 --- /dev/null +++ b/include/asm-nios2nommu/sockios.h @@ -0,0 +1,39 @@ +#ifndef _ASM_NIOS_SOCKIOS_H +#define _ASM_NIOS_SOCKIOS_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/sockios.h + * + * Socket-level I/O control calls. + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#define FIOSETOWN 0x8901 +#define SIOCSPGRP 0x8902 +#define FIOGETOWN 0x8903 +#define SIOCGPGRP 0x8904 +#define SIOCATMARK 0x8905 +#define SIOCGSTAMP 0x8906 /* Get stamp */ +#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */ + +#endif /* !(_ASM_NIOS_SOCKIOS_H) */ + diff --git a/include/asm-nios2nommu/spi.h b/include/asm-nios2nommu/spi.h new file mode 100644 index 0000000..6efb82c --- /dev/null +++ b/include/asm-nios2nommu/spi.h @@ -0,0 +1,92 @@ +#ifndef _ASM_SPI_H_ +#define _ASM_SPI_H_ 1 + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/spi.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +int register_NIOS_SPI( void ); +void unregister_NIOS_SPI( void ); + +#if defined(MODULE) +void cleanup_module( void ); +int init_module( void ); +#endif + +#if defined(__KERNEL__) +int spi_reset ( void ); +#endif + + +#define clockCS 0x01 +#define temperatureCS 0x02 + +#define clock_read_base 0x00 +#define clock_write_base 0x80 +#define clock_read_control 0x0F +#define clock_read_trickle 0x11 + +#define clock_read_sec 0x00 +#define clock_read_min 0x01 +#define clock_read_hour 0x02 +#define clock_read_day 0x03 +#define clock_read_date 0x04 +#define clock_read_month 0x05 +#define clock_read_year 0x06 + +#define clock_write_control 0x8F +#define clock_write_trickle 0x91 +#define clock_write_sec 0x80 +#define clock_write_min 0x81 +#define clock_write_hour 0x82 +#define clock_write_day 0x83 +#define clock_write_date 0x84 +#define clock_write_month 0x85 +#define clock_write_year 0x86 + +#define clock_write_ram_start 0xA0 +#define clock_write_ram_end 0x100 +#define clock_read_ram_start 0x20 +#define clock_read_ram_end 0x80 + + +#define clock_sec_def 0x11 +#define clock_min_def 0x59 +#define clock_hour_def 0x71 +#define clock_day_def 0x00 +#define clock_date_def 0x20 +#define clock_month_def 0x12 +#define clock_year_def 0x34 + +#define temp_read_base 0x00 +#define temp_write_base 0x80 +#define temp_read_control 0x00 +#define temp_write_control 0x80 +#define temp_read_msb 0x02 +#define temp_read_lsb 0x01 + +#define MAX_TEMP_VAR 10 + +#endif /*_ASM_SPI_H_*/ diff --git a/include/asm-nios2nommu/spi_struct.h b/include/asm-nios2nommu/spi_struct.h new file mode 100644 index 0000000..c7b2faf --- /dev/null +++ b/include/asm-nios2nommu/spi_struct.h @@ -0,0 +1,57 @@ +// SPI Registers +typedef volatile struct + { + int np_spirxdata; // Read-only, 1-16 bit + int np_spitxdata; // Write-only, same width as rxdata + int np_spistatus; // Read-only, 9-bit + int np_spicontrol; // Read/Write, 9-bit + int np_spireserved; // reserved + int np_spislaveselect; // Read/Write, 1-16 bit, master only + int np_spiendofpacket; // Read/write, same width as txdata, rxdata. + } np_spi; + +// SPI Status Register Bits +enum + { + np_spistatus_eop_bit = 9, + np_spistatus_e_bit = 8, + np_spistatus_rrdy_bit = 7, + np_spistatus_trdy_bit = 6, + np_spistatus_tmt_bit = 5, + np_spistatus_toe_bit = 4, + np_spistatus_roe_bit = 3, + + np_spistatus_eop_mask = (1 << 9), + np_spistatus_e_mask = (1 << 8), + np_spistatus_rrdy_mask = (1 << 7), + np_spistatus_trdy_mask = (1 << 6), + np_spistatus_tmt_mask = (1 << 5), + np_spistatus_toe_mask = (1 << 4), + np_spistatus_roe_mask = (1 << 3), + }; + +// SPI Control Register Bits +enum + { + np_spicontrol_sso_bit = 10, + np_spicontrol_ieop_bit = 9, + np_spicontrol_ie_bit = 8, + np_spicontrol_irrdy_bit = 7, + np_spicontrol_itrdy_bit = 6, + np_spicontrol_itoe_bit = 4, + np_spicontrol_iroe_bit = 3, + + np_spicontrol_sso_mask = (1 << 10), + np_spicontrol_ieop_mask = (1 << 9), + np_spicontrol_ie_mask = (1 << 8), + np_spicontrol_irrdy_mask = (1 << 7), + np_spicontrol_itrdy_mask = (1 << 6), + np_spicontrol_itoe_mask = (1 << 4), + np_spicontrol_iroe_mask = (1 << 3), + }; + +// SPI Routines. +int nr_spi_rxchar(np_spi *spiBase); +int nr_spi_txchar(int i, np_spi *spiBase); + + diff --git a/include/asm-nios2nommu/spinlock.h b/include/asm-nios2nommu/spinlock.h new file mode 100644 index 0000000..f518755 --- /dev/null +++ b/include/asm-nios2nommu/spinlock.h @@ -0,0 +1,30 @@ +#ifndef __NIOS_SPINLOCK_H +#define __NIOS_SPINLOCK_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/spinlock.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#error "Nios doesn't do SMP yet" + +#endif diff --git a/include/asm-nios2nommu/stat.h b/include/asm-nios2nommu/stat.h new file mode 100644 index 0000000..bd27a97 --- /dev/null +++ b/include/asm-nios2nommu/stat.h @@ -0,0 +1,102 @@ +#ifndef _ASMNIOS2NOMMU_STAT_H +#define _ASMNIOS2NOMMU_STAT_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/stat.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +struct __old_kernel_stat { + unsigned short st_dev; + unsigned short st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned long st_size; + unsigned long st_atime; + unsigned long st_mtime; + unsigned long st_ctime; +}; + +struct stat { + unsigned short st_dev; + unsigned short __pad1; + unsigned long st_ino; + unsigned short st_mode; + unsigned short st_nlink; + unsigned short st_uid; + unsigned short st_gid; + unsigned short st_rdev; + unsigned short __pad2; + unsigned long st_size; + unsigned long st_blksize; + unsigned long st_blocks; + unsigned long st_atime; + unsigned long __unused1; + unsigned long st_mtime; + unsigned long __unused2; + unsigned long st_ctime; + unsigned long __unused3; + unsigned long __unused4; + unsigned long __unused5; +}; + +/* This matches struct stat64 in glibc2.1, hence the absolutely + * insane amounts of padding around dev_t's. + */ +struct stat64 { + unsigned long long st_dev; + unsigned char __pad1[4]; + +#define STAT64_HAS_BROKEN_ST_INO 1 + unsigned long __st_ino; + + unsigned int st_mode; + unsigned int st_nlink; + + unsigned long st_uid; + unsigned long st_gid; + + unsigned long long st_rdev; + unsigned char __pad3[4]; + + long long st_size; + unsigned long st_blksize; + + unsigned long __pad4; /* future possible st_blocks high bits */ + unsigned long st_blocks; /* Number 512-byte blocks allocated. */ + + unsigned long st_atime; + unsigned long st_atime_nsec; + + unsigned long st_mtime; + unsigned long st_mtime_nsec; + + unsigned long st_ctime; + unsigned long st_ctime_nsec; + + unsigned long long st_ino; +}; + +#endif diff --git a/include/asm-nios2nommu/statfs.h b/include/asm-nios2nommu/statfs.h new file mode 100644 index 0000000..c4637f6 --- /dev/null +++ b/include/asm-nios2nommu/statfs.h @@ -0,0 +1,30 @@ +#ifndef _NIOS2NOMMU_STATFS_H +#define _NIOS2NOMMU_STATFS_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/statfs.h + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#endif /* _NIOS2NOMMU_STATFS_H */ diff --git a/include/asm-nios2nommu/string.h b/include/asm-nios2nommu/string.h new file mode 100644 index 0000000..7e39479 --- /dev/null +++ b/include/asm-nios2nommu/string.h @@ -0,0 +1,45 @@ +#ifndef __NIOS_STRING_H__ +#define __NIOS_STRING_H__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/string.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#ifdef __KERNEL__ /* only set these up for kernel code */ + +#define __HAVE_ARCH_MEMMOVE +void * memmove(void * d, const void * s, size_t count); +#define __HAVE_ARCH_MEMCPY +extern void * memcpy(void *d, const void *s, size_t count); +#define __HAVE_ARCH_MEMSET +extern void * memset(void * s,int c,size_t count); + +#if 0 +#define __HAVE_ARCH_BCOPY +#define __HAVE_ARCH_STRLEN +#endif + +#endif /* KERNEL */ + +#endif /* !(__NIOS_STRING_H__) */ diff --git a/include/asm-nios2nommu/system.h b/include/asm-nios2nommu/system.h new file mode 100644 index 0000000..7c35af0 --- /dev/null +++ b/include/asm-nios2nommu/system.h @@ -0,0 +1,172 @@ +/* + * Taken from the m68k. + * + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _NIOS2NOMMU_SYSTEM_H +#define _NIOS2NOMMU_SYSTEM_H + +#include +#include +#include +#include +#include + +/* + * switch_to(n) should switch tasks to task ptr, first checking that + * ptr isn't the current task, in which case it does nothing. This + * also clears the TS-flag if the task we switched to has used the + * math co-processor latest. + */ + +/* + */ +asmlinkage void resume(void); +#define switch_to(prev,next,last) \ +{ \ + void *_last; \ + __asm__ __volatile__( \ + "mov r4, %1\n" \ + "mov r5, %2\n" \ + "call resume\n" \ + "mov %0,r4\n" \ + : "=r" (_last) \ + : "r" (prev), "r" (next) \ + : "r4","r5","r7","r8","ra"); \ + (last) = _last; \ +} + +#define local_irq_enable() __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "ori r8, r8, 1\n" \ + "wrctl status, r8\n" \ + : : : "r8") + +#define local_irq_disable() __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "andi r8, r8, 0xfffe\n" \ + "wrctl status, r8\n" \ + : : : "r8") + +#define local_save_flags(x) __asm__ __volatile__ ( \ + "rdctl r8, status\n" \ + "mov %0, r8\n" \ + :"=r" (x) : : "r8", "memory") + +#define local_irq_restore(x) __asm__ __volatile__ ( \ + "mov r8, %0\n" \ + "wrctl status, r8\n" \ + : :"r" (x) : "memory") + +/* For spinlocks etc */ +#define local_irq_save(x) do { local_save_flags(x); local_irq_disable(); } while (0) + +#define irqs_disabled() \ +({ \ + unsigned long flags; \ + local_save_flags(flags); \ + ((flags & NIOS2_STATUS_PIE_MSK) == 0x0); \ +}) + +#define iret() __asm__ __volatile__ ("eret": : :"memory", "ea") + +/* + * Force strict CPU ordering. + * Not really required on m68k... + */ +#define nop() asm volatile ("nop"::) +#define mb() asm volatile ("" : : :"memory") +#define rmb() asm volatile ("" : : :"memory") +#define wmb() asm volatile ("" : : :"memory") +#define set_rmb(var, value) do { xchg(&var, value); } while (0) +#define set_mb(var, value) set_rmb(var, value) +#define set_wmb(var, value) do { var = value; wmb(); } while (0) + +#ifdef CONFIG_SMP +#define smp_mb() mb() +#define smp_rmb() rmb() +#define smp_wmb() wmb() +#define smp_read_barrier_depends() read_barrier_depends() +#else +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#define smp_read_barrier_depends() do { } while(0) +#endif + +#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr)))) +#define tas(ptr) (xchg((ptr),1)) + +struct __xchg_dummy { unsigned long a[100]; }; +#define __xg(x) ((volatile struct __xchg_dummy *)(x)) + +static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size) +{ + unsigned long tmp, flags; + + local_irq_save(flags); + + switch (size) { + case 1: + __asm__ __volatile__( \ + "ldb %0, %2\n" \ + "stb %1, %2\n" \ + : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory"); + break; + case 2: + __asm__ __volatile__( \ + "ldh %0, %2\n" \ + "sth %1, %2\n" \ + : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory"); + break; + case 4: + __asm__ __volatile__( \ + "ldw %0, %2\n" \ + "stw %1, %2\n" \ + : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory"); + break; + } + local_irq_restore(flags); + return tmp; +} + +/* + * Atomic compare and exchange. Compare OLD with MEM, if identical, + * store NEW in MEM. Return the initial value in MEM. Success is + * indicated by comparing RETURN with OLD. + */ +#define __HAVE_ARCH_CMPXCHG 1 + +static __inline__ unsigned long +cmpxchg(volatile int *p, int old, int new) +{ + unsigned long flags; + int prev; + + local_irq_save(flags); + if ((prev = *p) == old) + *p = new; + local_irq_restore(flags); + return(prev); +} + +#endif /* _NIOS2NOMMU_SYSTEM_H */ diff --git a/include/asm-nios2nommu/termbits.h b/include/asm-nios2nommu/termbits.h new file mode 100644 index 0000000..74ef61d --- /dev/null +++ b/include/asm-nios2nommu/termbits.h @@ -0,0 +1,210 @@ +#ifndef __ARCH_NIOS_TERMBITS_H__ +#define __ARCH_NIOS_TERMBITS_H__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/termbits.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +typedef unsigned char cc_t; +typedef unsigned int speed_t; +typedef unsigned int tcflag_t; + +#define NCCS 19 +struct termios { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[NCCS]; /* control characters */ +}; + +struct ktermios { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_line; /* line discipline */ + cc_t c_cc[NCCS]; /* control characters */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + +/* c_cc characters */ +#define VINTR 0 +#define VQUIT 1 +#define VERASE 2 +#define VKILL 3 +#define VEOF 4 +#define VTIME 5 +#define VMIN 6 +#define VSWTC 7 +#define VSTART 8 +#define VSTOP 9 +#define VSUSP 10 +#define VEOL 11 +#define VREPRINT 12 +#define VDISCARD 13 +#define VWERASE 14 +#define VLNEXT 15 +#define VEOL2 16 + + +/* c_iflag bits */ +#define IGNBRK 0000001 +#define BRKINT 0000002 +#define IGNPAR 0000004 +#define PARMRK 0000010 +#define INPCK 0000020 +#define ISTRIP 0000040 +#define INLCR 0000100 +#define IGNCR 0000200 +#define ICRNL 0000400 +#define IUCLC 0001000 +#define IXON 0002000 +#define IXANY 0004000 +#define IXOFF 0010000 +#define IMAXBEL 0020000 +#define IUTF8 0040000 + +/* c_oflag bits */ +#define OPOST 0000001 +#define OLCUC 0000002 +#define ONLCR 0000004 +#define OCRNL 0000010 +#define ONOCR 0000020 +#define ONLRET 0000040 +#define OFILL 0000100 +#define OFDEL 0000200 +#define NLDLY 0000400 +#define NL0 0000000 +#define NL1 0000400 +#define CRDLY 0003000 +#define CR0 0000000 +#define CR1 0001000 +#define CR2 0002000 +#define CR3 0003000 +#define TABDLY 0014000 +#define TAB0 0000000 +#define TAB1 0004000 +#define TAB2 0010000 +#define TAB3 0014000 +#define XTABS 0014000 +#define BSDLY 0020000 +#define BS0 0000000 +#define BS1 0020000 +#define VTDLY 0040000 +#define VT0 0000000 +#define VT1 0040000 +#define FFDLY 0100000 +#define FF0 0000000 +#define FF1 0100000 + +/* c_cflag bit meaning */ +#define CBAUD 0010017 +#define B0 0000000 /* hang up */ +#define B50 0000001 +#define B75 0000002 +#define B110 0000003 +#define B134 0000004 +#define B150 0000005 +#define B200 0000006 +#define B300 0000007 +#define B600 0000010 +#define B1200 0000011 +#define B1800 0000012 +#define B2400 0000013 +#define B4800 0000014 +#define B9600 0000015 +#define B19200 0000016 +#define B38400 0000017 +#define EXTA B19200 +#define EXTB B38400 +#define CSIZE 0000060 +#define CS5 0000000 +#define CS6 0000020 +#define CS7 0000040 +#define CS8 0000060 +#define CSTOPB 0000100 +#define CREAD 0000200 +#define PARENB 0000400 +#define PARODD 0001000 +#define HUPCL 0002000 +#define CLOCAL 0004000 +#define CBAUDEX 0010000 +#define B57600 0010001 +#define B115200 0010002 +#define B230400 0010003 +#define B460800 0010004 +#define B500000 0010005 +#define B576000 0010006 +#define B921600 0010007 +#define B1000000 0010010 +#define B1152000 0010011 +#define B1500000 0010012 +#define B2000000 0010013 +#define B2500000 0010014 +#define B3000000 0010015 +#define B3500000 0010016 +#define B4000000 0010017 +#define CIBAUD 002003600000 /* input baud rate (not used) */ +#define CMSPAR 010000000000 /* mark or space (stick) parity */ +#define CRTSCTS 020000000000 /* flow control */ + +/* c_lflag bits */ +#define ISIG 0000001 +#define ICANON 0000002 +#define XCASE 0000004 +#define ECHO 0000010 +#define ECHOE 0000020 +#define ECHOK 0000040 +#define ECHONL 0000100 +#define NOFLSH 0000200 +#define TOSTOP 0000400 +#define ECHOCTL 0001000 +#define ECHOPRT 0002000 +#define ECHOKE 0004000 +#define FLUSHO 0010000 +#define PENDIN 0040000 +#define IEXTEN 0100000 + + +/* tcflow() and TCXONC use these */ +#define TCOOFF 0 +#define TCOON 1 +#define TCIOFF 2 +#define TCION 3 + +/* tcflush() and TCFLSH use these */ +#define TCIFLUSH 0 +#define TCOFLUSH 1 +#define TCIOFLUSH 2 + +/* tcsetattr uses these */ +#define TCSANOW 0 +#define TCSADRAIN 1 +#define TCSAFLUSH 2 + +#endif /* __ARCH_NIOS_TERMBITS_H__ */ diff --git a/include/asm-nios2nommu/termios.h b/include/asm-nios2nommu/termios.h new file mode 100644 index 0000000..db0dddf --- /dev/null +++ b/include/asm-nios2nommu/termios.h @@ -0,0 +1,132 @@ +#ifndef _NIOS_TERMIOS_H +#define _NIOS_TERMIOS_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/termios.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include +#include + +struct winsize { + unsigned short ws_row; + unsigned short ws_col; + unsigned short ws_xpixel; + unsigned short ws_ypixel; +}; + +#define NCC 8 +struct termio { + unsigned short c_iflag; /* input mode flags */ + unsigned short c_oflag; /* output mode flags */ + unsigned short c_cflag; /* control mode flags */ + unsigned short c_lflag; /* local mode flags */ + unsigned char c_line; /* line discipline */ + unsigned char c_cc[NCC]; /* control characters */ +}; + +#ifdef __KERNEL__ +/* intr=^C quit=^| erase=del kill=^U + eof=^D vtime=\0 vmin=\1 sxtc=\0 + start=^Q stop=^S susp=^Z eol=\0 + reprint=^R discard=^U werase=^W lnext=^V + eol2=\0 +*/ +#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0" +#endif + +/* modem lines */ +#define TIOCM_LE 0x001 +#define TIOCM_DTR 0x002 +#define TIOCM_RTS 0x004 +#define TIOCM_ST 0x008 +#define TIOCM_SR 0x010 +#define TIOCM_CTS 0x020 +#define TIOCM_CAR 0x040 +#define TIOCM_RNG 0x080 +#define TIOCM_DSR 0x100 +#define TIOCM_CD TIOCM_CAR +#define TIOCM_RI TIOCM_RNG +#define TIOCM_OUT1 0x2000 +#define TIOCM_OUT2 0x4000 +#define TIOCM_LOOP 0x8000 + +/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */ + +/* line disciplines */ +#define N_TTY 0 +#define N_SLIP 1 +#define N_MOUSE 2 +#define N_PPP 3 +#define N_STRIP 4 +#define N_AX25 5 +#define N_X25 6 /* X.25 async */ +#define N_6PACK 7 +#define N_MASC 8 /* Reserved for Mobitex module */ +#define N_R3964 9 /* Reserved for Simatic R3964 module */ +#define N_PROFIBUS_FDL 10 /* Reserved for Profibus */ +#define N_IRDA 11 /* Linux IrDa - http://irda.sourceforge.net/ */ +#define N_SMSBLOCK 12 /* SMS block mode - for talking to GSM data cards about SMS messages */ +#define N_HDLC 13 /* synchronous HDLC */ +#define N_SYNC_PPP 14 +#define N_HCI 15 /* Bluetooth HCI UART */ + +#ifdef __KERNEL__ + +/* + * Translate a "termio" structure into a "termios". Ugh. + */ +#define user_termio_to_kernel_termios(termios, termio) \ +({ \ + unsigned short tmp; \ + get_user(tmp, &(termio)->c_iflag); \ + (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \ + get_user(tmp, &(termio)->c_oflag); \ + (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \ + get_user(tmp, &(termio)->c_cflag); \ + (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \ + get_user(tmp, &(termio)->c_lflag); \ + (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \ + get_user((termios)->c_line, &(termio)->c_line); \ + copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \ +}) + +/* + * Translate a "termios" structure into a "termio". Ugh. + */ +#define kernel_termios_to_user_termio(termio, termios) \ +({ \ + put_user((termios)->c_iflag, &(termio)->c_iflag); \ + put_user((termios)->c_oflag, &(termio)->c_oflag); \ + put_user((termios)->c_cflag, &(termio)->c_cflag); \ + put_user((termios)->c_lflag, &(termio)->c_lflag); \ + put_user((termios)->c_line, &(termio)->c_line); \ + copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \ +}) + +#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios)) +#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios)) + +#endif /* __KERNEL__ */ + +#endif /* _NIOS_TERMIOS_H */ diff --git a/include/asm-nios2nommu/thread_info.h b/include/asm-nios2nommu/thread_info.h new file mode 100644 index 0000000..6d51e0c --- /dev/null +++ b/include/asm-nios2nommu/thread_info.h @@ -0,0 +1,127 @@ +/* thread_info.h: niosnommu low-level thread information + * adapted from the m68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd. + * Copyright (C) 2002 Microtronix Datacom + * + * - Incorporating suggestions made by Linus Torvalds and Dave Miller + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#ifndef _ASM_THREAD_INFO_H +#define _ASM_THREAD_INFO_H + +#include + +#ifdef __KERNEL__ + +#ifndef __ASSEMBLY__ + +/* + * low level task data. + */ +struct thread_info { + struct task_struct *task; /* main task structure */ + struct exec_domain *exec_domain; /* execution domain */ + unsigned long flags; /* low level flags */ + int cpu; /* cpu we're on */ + int preempt_count; /* 0 => preemptable, <0 => BUG*/ + struct restart_block restart_block; +}; + +/* + * macros/functions for gaining access to the thread information structure + */ +#define INIT_THREAD_INFO(tsk) \ +{ \ + .task = &tsk, \ + .exec_domain = &default_exec_domain, \ + .flags = 0, \ + .cpu = 0, \ + .preempt_count = 1, \ + .restart_block = { \ + .fn = do_no_restart_syscall, \ + }, \ +} + +#define init_thread_info (init_thread_union.thread_info) +#define init_stack (init_thread_union.stack) + + +/* how to get the thread information struct from C + usable only in supervisor mode */ +static inline struct thread_info *current_thread_info(void) +{ + struct thread_info *ti; + __asm__ __volatile__( + "mov %0, sp\n" + "and %0, %0, %1\n" + : "=&r"(ti) + : "r" (~(THREAD_SIZE-1)) + ); + return ti; +} + +/* thread information allocation */ +#define alloc_thread_info(tsk) ((struct thread_info *) \ + __get_free_pages(GFP_KERNEL, 1)) +#define free_thread_info(ti) free_pages((unsigned long) (ti), 1) +#define put_thread_info(ti) put_task_struct((ti)->task) + +#define PREEMPT_ACTIVE 0x4000000 + +/* + * thread information flag bit numbers + */ +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */ +#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */ +#define TIF_SIGPENDING 2 /* signal pending */ +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */ +#define TIF_POLLING_NRFLAG 4 /* true if poll_idle() is polling + TIF_NEED_RESCHED */ +#define TIF_MEMDIE 5 + +/* as above, but as bit values */ +#define _TIF_SYSCALL_TRACE (1< + + +#define CLOCK_TICK_RATE nasys_clock_freq /* Underlying HZ */ + +#define CLOCK_TICK_FACTOR 20 /* Factor of both 1000000 and CLOCK_TICK_RATE */ + +#define FINETUNE ((((((long)LATCH * HZ - CLOCK_TICK_RATE) << SHIFT_HZ) * \ + (1000000/CLOCK_TICK_FACTOR) / (CLOCK_TICK_RATE/CLOCK_TICK_FACTOR)) \ + << (SHIFT_SCALE-SHIFT_HZ)) / HZ) + +typedef unsigned long cycles_t; + +static inline cycles_t get_cycles(void) +{ + return 0; +} + +#endif diff --git a/include/asm-nios2nommu/tlb.h b/include/asm-nios2nommu/tlb.h new file mode 100644 index 0000000..c597b25 --- /dev/null +++ b/include/asm-nios2nommu/tlb.h @@ -0,0 +1,35 @@ +#ifndef __NIOS_TLB_H__ +#define __NIOS_TLB_H__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/tlb.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2003 Microtronix Datacom Ltd + * Copyright (C) 2002 NEC Corporation + * Copyright (C) 2002 Miles Bader + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Written by Miles Bader + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#define tlb_flush(tlb) ((void)0) + +#include + +#endif /* __NIOS_TLB_H__ */ + diff --git a/include/asm-nios2nommu/tlbflush.h b/include/asm-nios2nommu/tlbflush.h new file mode 100644 index 0000000..63cbe52 --- /dev/null +++ b/include/asm-nios2nommu/tlbflush.h @@ -0,0 +1,86 @@ +#ifndef _NIOS2NOMMU_TLBFLUSH_H +#define _NIOS2NOMMU_TLBFLUSH_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/tlbflush.h + * + * Ported from m68knommu. + * + * Copyright (C) 2003 Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + +#include + +/* + * flush all user-space atc entries. + */ +static inline void __flush_tlb(void) +{ + BUG(); +} + +static inline void __flush_tlb_one(unsigned long addr) +{ + BUG(); +} + +#define flush_tlb() __flush_tlb() + +/* + * flush all atc entries (both kernel and user-space entries). + */ +static inline void flush_tlb_all(void) +{ + BUG(); +} + +static inline void flush_tlb_mm(struct mm_struct *mm) +{ + BUG(); +} + +static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) +{ + BUG(); +} + +static inline void flush_tlb_range(struct mm_struct *mm, + unsigned long start, unsigned long end) +{ + BUG(); +} + +extern inline void flush_tlb_kernel_page(unsigned long addr) +{ + BUG(); +} + +extern inline void flush_tlb_pgtables(struct mm_struct *mm, + unsigned long start, unsigned long end) +{ + BUG(); +} + +#endif /* _NIOS2NOMMU_TLBFLUSH_H */ diff --git a/include/asm-nios2nommu/topology.h b/include/asm-nios2nommu/topology.h new file mode 100644 index 0000000..cfe1054 --- /dev/null +++ b/include/asm-nios2nommu/topology.h @@ -0,0 +1,30 @@ +#ifndef _ASM_NIOS2NOMMU_TOPOLOGY_H +#define _ASM_NIOS2NOMMU_TOPOLOGY_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/topology.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +#endif /* _ASM_NIOS2NOMMU_TOPOLOGY_H */ diff --git a/include/asm-nios2nommu/traps.h b/include/asm-nios2nommu/traps.h new file mode 100644 index 0000000..e03ef7f --- /dev/null +++ b/include/asm-nios2nommu/traps.h @@ -0,0 +1,27 @@ +/* + * Copyright (C) 2004, Microtronix Datacom Ltd. + * + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#ifndef _NIOS2_TRAPS_H +#define _NIOS2_TRAPS_H + +#define TRAP_ID_SYSCALL 0 +#define TRAP_ID_APPDEBUG 1 +#endif /* !(_NIOS2_TRAPS_H) */ diff --git a/include/asm-nios2nommu/types.h b/include/asm-nios2nommu/types.h new file mode 100644 index 0000000..dd7a48e --- /dev/null +++ b/include/asm-nios2nommu/types.h @@ -0,0 +1,91 @@ +#ifndef _NIOS_TYPES_H +#define _NIOS_TYPES_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/types.h + * + * Derived from m68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* + * This file is never included by application software unless + * explicitly requested (e.g., via linux/types.h) in which case the + * application is Linux specific so (user-) name space pollution is + * not a major issue. However, for interoperability, libraries still + * need to be careful to avoid a name clashes. + */ + +#ifndef __ASSEMBLY__ + +typedef unsigned short umode_t; + +/* + * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the + * header files exported to user space + */ + +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +typedef __signed__ long long __s64; +typedef unsigned long long __u64; +#endif + +#endif /* __ASSEMBLY__ */ + +/* + * These aren't exported outside the kernel to avoid name space clashes + */ +#ifdef __KERNEL__ + +#define BITS_PER_LONG 32 + +#ifndef __ASSEMBLY__ + +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +/* DMA addresses are always 32-bits wide */ + +typedef u32 dma_addr_t; +typedef u32 dma64_addr_t; + +#endif /* __ASSEMBLY__ */ + +#endif /* __KERNEL__ */ + +#endif /* _NIOS_TYPES_H */ diff --git a/include/asm-nios2nommu/uaccess.h b/include/asm-nios2nommu/uaccess.h new file mode 100644 index 0000000..e7ea20a --- /dev/null +++ b/include/asm-nios2nommu/uaccess.h @@ -0,0 +1,184 @@ +#ifndef __NIOS2NOMMU_UACCESS_H +#define __NIOS2NOMMU_UACCESS_H + +/*-------------------------------------------------------------------- + * + * asm-nios2nommu/uaccess.h + * + * User space memory access functions + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Ported from asm-m68knommu/uaccess.h --wentao + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include +#include +#include +#include + +#define VERIFY_READ 0 +#define VERIFY_WRITE 1 + +#define access_ok(type,addr,size) _access_ok((unsigned long)(addr),(size)) + +static inline int _access_ok(unsigned long addr, unsigned long size) +{ + return (((unsigned long)addr < (unsigned long)nasys_program_mem_end) && + (((unsigned long)addr >= (unsigned long)nasys_program_mem))); +} + +extern inline int verify_area(int type, const void * addr, unsigned long size) +{ + return access_ok(type,addr,size)?0:-EFAULT; +} + +/* + * The exception table consists of pairs of addresses: the first is the + * address of an instruction that is allowed to fault, and the second is + * the address at which the program should continue. No registers are + * modified, so it is entirely up to the continuation code to figure out + * what to do. + * + * All the routines below use bits of fixup code that are out of line + * with the main instruction path. This means when everything is well, + * we don't even have to jump over them. Further, they do not intrude + * on our cache or tlb entries. + */ + +#define ARCH_HAS_SEARCH_EXTABLE +//;dgt2;tmp; + +struct exception_table_entry +{ + unsigned long insn, fixup; +}; + +/* Returns 0 if exception not found and fixup otherwise. */ +extern unsigned long search_exception_table(unsigned long); + + +/* + * These are the main single-value transfer routines. They automatically + * use the right size if we just have the right pointer type. + */ + +#define put_user(x, ptr) \ +({ \ + int __pu_err = 0; \ + typeof(*(ptr)) __pu_val = (x); \ + switch (sizeof (*(ptr))) { \ + case 1: \ + case 2: \ + case 4: \ + case 8: \ + memcpy(ptr, &__pu_val, sizeof (*(ptr))); \ + break; \ + default: \ + __pu_err = __put_user_bad(); \ + break; \ + } \ + __pu_err; \ +}) +#define __put_user(x, ptr) put_user(x, ptr) + +extern int __put_user_bad(void); + +/* + * Tell gcc we read from memory instead of writing: this is because + * we do not write to any memory gcc knows about, so there are no + * aliasing issues. + */ + +#define __ptr(x) ((unsigned long *)(x)) + +#define get_user(x, ptr) \ +({ \ + int __gu_err = 0; \ + typeof(*(ptr)) __gu_val = 0; \ + switch (sizeof(*(ptr))) { \ + case 1: \ + case 2: \ + case 4: \ + case 8: \ + memcpy(&__gu_val, ptr, sizeof (*(ptr))); \ + break; \ + default: \ + __gu_val = 0; \ + __gu_err = __get_user_bad(); \ + break; \ + } \ + (x) = __gu_val; \ + __gu_err; \ +}) +#define __get_user(x, ptr) get_user(x, ptr) + +extern int __get_user_bad(void); + +#define copy_from_user(to, from, n) (memcpy(to, from, n), 0) +#define copy_to_user(to, from, n) (memcpy(to, from, n), 0) + +#define __copy_from_user(to, from, n) copy_from_user(to, from, n) +#define __copy_to_user(to, from, n) copy_to_user(to, from, n) +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user + +#define copy_to_user_ret(to,from,n,retval) ({ if (copy_to_user(to,from,n)) return retval; }) + +#define copy_from_user_ret(to,from,n,retval) ({ if (copy_from_user(to,from,n)) return retval; }) + +/* + * Copy a null terminated string from userspace. + */ + +static inline long +strncpy_from_user(char *dst, const char *src, long count) +{ + char *tmp; + strncpy(dst, src, count); + for (tmp = dst; *tmp && count > 0; tmp++, count--) + ; + return(tmp - dst); /* DAVIDM should we count a NUL ? check getname */ +} + +/* + * Return the size of a string (including the ending 0) + * + * Return 0 on exception, a value greater than N if too long + */ +static inline long strnlen_user(const char *src, long n) +{ + return(strlen(src) + 1); /* DAVIDM make safer */ +} + +#define strlen_user(str) strnlen_user(str, 32767) + +/* + * Zero Userspace + */ + +static inline unsigned long __clear_user(void *to, unsigned long n) +{ + memset(to, 0, n); + return(0); +} + +#define clear_user(to, n) __clear_user(to, n) + +#endif /* _NIOS2NOMMU_UACCESS_H */ diff --git a/include/asm-nios2nommu/uart_struct.h b/include/asm-nios2nommu/uart_struct.h new file mode 100644 index 0000000..d955192 --- /dev/null +++ b/include/asm-nios2nommu/uart_struct.h @@ -0,0 +1,83 @@ + +// UART Registers +typedef volatile struct + { + int np_uartrxdata; // Read-only, 8-bit + int np_uarttxdata; // Write-only, 8-bit + int np_uartstatus; // Read-only, 8-bit + int np_uartcontrol; // Read/Write, 9-bit + int np_uartdivisor; // Read/Write, 16-bit, optional + int np_uartendofpacket; // Read/Write, end-of-packet character + } np_uart; + +// UART Status Register Bits +enum + { + np_uartstatus_eop_bit = 12, + np_uartstatus_cts_bit = 11, + np_uartstatus_dcts_bit = 10, + np_uartstatus_e_bit = 8, + np_uartstatus_rrdy_bit = 7, + np_uartstatus_trdy_bit = 6, + np_uartstatus_tmt_bit = 5, + np_uartstatus_toe_bit = 4, + np_uartstatus_roe_bit = 3, + np_uartstatus_brk_bit = 2, + np_uartstatus_fe_bit = 1, + np_uartstatus_pe_bit = 0, + + np_uartstatus_eop_mask = (1<<12), + np_uartstatus_cts_mask = (1<<11), + np_uartstatus_dcts_mask = (1<<10), + np_uartstatus_e_mask = (1<<8), + np_uartstatus_rrdy_mask = (1<<7), + np_uartstatus_trdy_mask = (1<<6), + np_uartstatus_tmt_mask = (1<<5), + np_uartstatus_toe_mask = (1<<4), + np_uartstatus_roe_mask = (1<<3), + np_uartstatus_brk_mask = (1<<2), + np_uartstatus_fe_mask = (1<<1), + np_uartstatus_pe_mask = (1<<0) + }; + +// UART Control Register Bits +enum + { + np_uartcontrol_ieop_bit = 12, + np_uartcontrol_rts_bit = 11, + np_uartcontrol_idcts_bit = 10, + np_uartcontrol_tbrk_bit = 9, + np_uartcontrol_ie_bit = 8, + np_uartcontrol_irrdy_bit = 7, + np_uartcontrol_itrdy_bit = 6, + np_uartcontrol_itmt_bit = 5, + np_uartcontrol_itoe_bit = 4, + np_uartcontrol_iroe_bit = 3, + np_uartcontrol_ibrk_bit = 2, + np_uartcontrol_ife_bit = 1, + np_uartcontrol_ipe_bit = 0, + + np_uartcontrol_ieop_mask = (1<<12), + np_uartcontrol_rts_mask = (1<<11), + np_uartcontrol_idcts_mask = (1<<10), + np_uartcontrol_tbrk_mask = (1<<9), + np_uartcontrol_ie_mask = (1<<8), + np_uartcontrol_irrdy_mask = (1<<7), + np_uartcontrol_itrdy_mask = (1<<6), + np_uartcontrol_itmt_mask = (1<<5), + np_uartcontrol_itoe_mask = (1<<4), + np_uartcontrol_iroe_mask = (1<<3), + np_uartcontrol_ibrk_mask = (1<<2), + np_uartcontrol_ife_mask = (1<<1), + np_uartcontrol_ipe_mask = (1<<0) + }; + +// UART Routines +int nr_uart_rxchar(np_uart *uartBase); // 0 for default UART +void nr_uart_txcr(void); +void nr_uart_txchar(int c,np_uart *uartBase); // 0 for default UART +void nr_uart_txhex(int x); // 16 or 32 bits +void nr_uart_txhex16(short x); +void nr_uart_txhex32(long x); +void nr_uart_txstring(char *s); + diff --git a/include/asm-nios2nommu/ucontext.h b/include/asm-nios2nommu/ucontext.h new file mode 100644 index 0000000..f2e7ce2 --- /dev/null +++ b/include/asm-nios2nommu/ucontext.h @@ -0,0 +1,63 @@ +#ifndef _NIOSKNOMMU_UCONTEXT_H +#define _NIOSKNOMMU_UCONTEXT_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/ucontext.h + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +typedef int greg_t; +#define NGREG 32 +typedef greg_t gregset_t[NGREG]; + +#ifdef CONFIG_FPU +typedef struct fpregset { + int f_pcr; + int f_psr; + int f_fpiaddr; + int f_fpregs[8][3]; +} fpregset_t; +#endif + +struct mcontext { + int version; + int status_extension; + gregset_t gregs; +#ifdef CONFIG_FPU + fpregset_t fpregs; +#endif +}; + +#define MCONTEXT_VERSION 2 + +struct ucontext { + unsigned long uc_flags; + struct ucontext *uc_link; + stack_t uc_stack; + struct mcontext uc_mcontext; +#ifdef CONFIG_FPU + unsigned long uc_filler[80]; +#endif + sigset_t uc_sigmask; /* mask last for extensibility */ +}; + +#endif diff --git a/include/asm-nios2nommu/unaligned.h b/include/asm-nios2nommu/unaligned.h new file mode 100644 index 0000000..4876185 --- /dev/null +++ b/include/asm-nios2nommu/unaligned.h @@ -0,0 +1,6 @@ +#ifndef __NIOS2_UNALIGNED_H +#define __NIOS2_UNALIGNED_H + +#include + +#endif /* __NIOS2_UNALIGNED_H */ diff --git a/include/asm-nios2nommu/unistd.h b/include/asm-nios2nommu/unistd.h new file mode 100644 index 0000000..43cd165 --- /dev/null +++ b/include/asm-nios2nommu/unistd.h @@ -0,0 +1,395 @@ +#ifndef _ASM_NIOS_UNISTD_H_ +#define _ASM_NIOS_UNISTD_H_ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/unistd.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * //vic - kernel_thread moved to process.c + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +/* TRAP isr expects the trap# (syscall=#TRAP_ID_SYSCALL) in r2, + * the syscall # in r3, and arguments in r4, r5, ... + * Return argument expected in r2. + */ + +#define __NR_restart_syscall 0 +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +#define __NR_waitpid 7 +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +#define __NR_time 13 +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_chown 16 +#define __NR_break 17 +#define __NR_oldstat 18 +#define __NR_lseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +#define __NR_umount 22 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_ptrace 26 +#define __NR_alarm 27 +#define __NR_oldfstat 28 +#define __NR_pause 29 +#define __NR_utime 30 +#define __NR_stty 31 +#define __NR_gtty 32 +#define __NR_access 33 +#define __NR_nice 34 +#define __NR_ftime 35 +#define __NR_sync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +#define __NR_prof 44 +#define __NR_brk 45 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_signal 48 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_acct 51 +#define __NR_umount2 52 //vic #define __NR_phys 52 +#define __NR_lock 53 +#define __NR_ioctl 54 +#define __NR_fcntl 55 +#define __NR_mpx 56 +#define __NR_setpgid 57 +#define __NR_ulimit 58 +#define __NR_oldolduname 59 +#define __NR_umask 60 +#define __NR_chroot 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_sigaction 67 +#define __NR_sgetmask 68 +#define __NR_ssetmask 69 +#define __NR_setreuid 70 +#define __NR_setregid 71 +#define __NR_sigsuspend 72 +#define __NR_sigpending 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +#define __NR_getrlimit 76 +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_select 82 +#define __NR_symlink 83 +#define __NR_oldlstat 84 +#define __NR_readlink 85 +#define __NR_uselib 86 +#define __NR_swapon 87 +#define __NR_reboot 88 +#define __NR_readdir 89 +#define __NR_mmap 90 +#define __NR_munmap 91 +#define __NR_truncate 92 +#define __NR_ftruncate 93 +#define __NR_fchmod 94 +#define __NR_fchown 95 +#define __NR_getpriority 96 +#define __NR_setpriority 97 +#define __NR_profil 98 +#define __NR_statfs 99 +#define __NR_fstatfs 100 +#define __NR_ioperm 101 +#define __NR_socketcall 102 +#define __NR_syslog 103 +#define __NR_setitimer 104 +#define __NR_getitimer 105 +#define __NR_stat 106 +#define __NR_lstat 107 +#define __NR_fstat 108 +#define __NR_olduname 109 +#define __NR_iopl /* 110 */ not supported +#define __NR_vhangup 111 +#define __NR_idle /* 112 */ Obsolete +#define __NR_vm86 /* 113 */ not supported +#define __NR_wait4 114 +#define __NR_swapoff 115 +#define __NR_sysinfo 116 +#define __NR_ipc 117 +#define __NR_fsync 118 +#define __NR_sigreturn 119 +#define __NR_clone 120 +#define __NR_setdomainname 121 +#define __NR_uname 122 +#define __NR_cacheflush 123 +#define __NR_adjtimex 124 +#define __NR_mprotect 125 +#define __NR_sigprocmask 126 +#define __NR_create_module 127 +#define __NR_init_module 128 +#define __NR_delete_module 129 +#define __NR_get_kernel_syms 130 +#define __NR_quotactl 131 +#define __NR_getpgid 132 +#define __NR_fchdir 133 +#define __NR_bdflush 134 +#define __NR_sysfs 135 +#define __NR_personality 136 +#define __NR_afs_syscall 137 /* Syscall for Andrew File System */ +#define __NR_setfsuid 138 +#define __NR_setfsgid 139 +#define __NR__llseek 140 +#define __NR_getdents 141 +#define __NR__newselect 142 +#define __NR_flock 143 + /* 144 __NR_msync obsolete */ +#define __NR_readv 145 +#define __NR_writev 146 +#define __NR_getsid 147 +#define __NR_fdatasync 148 +#define __NR__sysctl 149 +#define __NR_mlock 150 +#define __NR_munlock 151 +#define __NR_mlockall 152 +#define __NR_munlockall 153 +#define __NR_sched_setparam 154 +#define __NR_sched_getparam 155 +#define __NR_sched_setscheduler 156 +#define __NR_sched_getscheduler 157 +#define __NR_sched_yield 158 +#define __NR_sched_get_priority_max 159 +#define __NR_sched_get_priority_min 160 +#define __NR_sched_rr_get_interval 161 +#define __NR_nanosleep 162 +#define __NR_mremap 163 +#define __NR_setresuid 164 +#define __NR_getresuid 165 +#define __NR_getpagesize 166 +#define __NR_query_module 167 +#define __NR_poll 168 +#define __NR_nfsservctl 169 +#define __NR_setresgid 170 +#define __NR_getresgid 171 +#define __NR_prctl 172 +#define __NR_rt_sigreturn 173 +#define __NR_rt_sigaction 174 +#define __NR_rt_sigprocmask 175 +#define __NR_rt_sigpending 176 +#define __NR_rt_sigtimedwait 177 +#define __NR_rt_sigqueueinfo 178 +#define __NR_rt_sigsuspend 179 +#define __NR_pread 180 +#define __NR_pwrite 181 +#define __NR_lchown 182 +#define __NR_getcwd 183 +#define __NR_capget 184 +#define __NR_capset 185 +#define __NR_sigaltstack 186 +#define __NR_sendfile 187 +#define __NR_getpmsg 188 /* some people actually want streams */ +#define __NR_putpmsg 189 /* some people actually want streams */ +#define __NR_vfork 190 +#define __NR_ugetrlimit 191 +#define __NR_mmap2 192 +#define __NR_truncate64 193 +#define __NR_ftruncate64 194 +#define __NR_stat64 195 +#define __NR_lstat64 196 +#define __NR_fstat64 197 +#define __NR_chown32 198 +#define __NR_getuid32 199 +#define __NR_getgid32 200 +#define __NR_geteuid32 201 +#define __NR_getegid32 202 +#define __NR_setreuid32 203 +#define __NR_setregid32 204 +#define __NR_getgroups32 205 +#define __NR_setgroups32 206 +#define __NR_fchown32 207 +#define __NR_setresuid32 208 +#define __NR_getresuid32 209 +#define __NR_setresgid32 210 +#define __NR_getresgid32 211 +#define __NR_lchown32 212 +#define __NR_setuid32 213 +#define __NR_setgid32 214 +#define __NR_setfsuid32 215 +#define __NR_setfsgid32 216 +#define __NR_pivot_root 217 +/* 218 unused */ +/* 219 unused */ +#define __NR_getdents64 220 +#define __NR_gettid 221 +#define __NR_tkill 222 +#define __NR_setxattr 223 +#define __NR_lsetxattr 224 +#define __NR_fsetxattr 225 +#define __NR_getxattr 226 +#define __NR_lgetxattr 227 +#define __NR_fgetxattr 228 +#define __NR_listxattr 229 +#define __NR_llistxattr 230 +#define __NR_flistxattr 231 +#define __NR_removexattr 232 +#define __NR_lremovexattr 233 +#define __NR_fremovexattr 234 +#define __NR_futex 235 +#define __NR_sendfile64 236 +#define __NR_mincore 237 +#define __NR_madvise 238 +#define __NR_fcntl64 239 +#define __NR_readahead 240 +#define __NR_io_setup 241 +#define __NR_io_destroy 242 +#define __NR_io_getevents 243 +#define __NR_io_submit 244 +#define __NR_io_cancel 245 +#define __NR_fadvise64 246 +#define __NR_exit_group 247 +#define __NR_lookup_dcookie 248 +#define __NR_epoll_create 249 +#define __NR_epoll_ctl 250 +#define __NR_epoll_wait 251 +#define __NR_remap_file_pages 252 +#define __NR_set_tid_address 253 +#define __NR_timer_create 254 +#define __NR_timer_settime 255 +#define __NR_timer_gettime 256 +#define __NR_timer_getoverrun 257 +#define __NR_timer_delete 258 +#define __NR_clock_settime 259 +#define __NR_clock_gettime 260 +#define __NR_clock_getres 261 +#define __NR_clock_nanosleep 262 +#define __NR_statfs64 263 +#define __NR_fstatfs64 264 +#define __NR_tgkill 265 +#define __NR_utimes 266 +#define __NR_fadvise64_64 267 +#define __NR_mbind 268 +#define __NR_get_mempolicy 269 +#define __NR_set_mempolicy 270 +#define __NR_mq_open 271 +#define __NR_mq_unlink 272 +#define __NR_mq_timedsend 273 +#define __NR_mq_timedreceive 274 +#define __NR_mq_notify 275 +#define __NR_mq_getsetattr 276 +#define __NR_waitid 277 +#define __NR_sys_setaltroot 278 +#define __NR_add_key 279 +#define __NR_request_key 280 +#define __NR_keyctl 281 +#define __NR_ioprio_set 282 +#define __NR_ioprio_get 283 +#define __NR_inotify_init 284 +#define __NR_inotify_add_watch 285 +#define __NR_inotify_rm_watch 286 +#define __NR_migrate_pages 287 +#define __NR_openat 288 +#define __NR_mkdirat 289 +#define __NR_mknodat 290 +#define __NR_fchownat 291 +#define __NR_futimesat 292 +#define __NR_fstatat64 293 +#define __NR_unlinkat 294 +#define __NR_renameat 295 +#define __NR_linkat 296 +#define __NR_symlinkat 297 +#define __NR_readlinkat 298 +#define __NR_fchmodat 299 +#define __NR_faccessat 300 +#define __NR_pselect6 301 +#define __NR_ppoll 302 +#define __NR_unshare 303 +#define __NR_set_robust_list 304 +#define __NR_get_robust_list 305 +#define __NR_splice 306 +#define __NR_sync_file_range 307 +#define __NR_tee 308 +#define __NR_vmsplice 309 +#define __NR_move_pages 310 +#define __NR_sched_setaffinity 311 +#define __NR_sched_getaffinity 312 +#define __NR_kexec_load 313 +#define __NR_getcpu 314 +#define __NR_epoll_pwait 315 +#define __NR_utimensat 316 +#define __NR_signalfd 317 +#define __NR_timerfd 318 +#define __NR_eventfd 319 +#define __NR_pread64 320 +#define __NR_pwrite64 321 + +#ifdef __KERNEL__ +#define NR_syscalls 322 + +#define __ARCH_WANT_IPC_PARSE_VERSION +#define __ARCH_WANT_OLD_READDIR +#define __ARCH_WANT_OLD_STAT +#define __ARCH_WANT_STAT64 +#define __ARCH_WANT_SYS_ALARM +#define __ARCH_WANT_SYS_GETHOSTNAME +#define __ARCH_WANT_SYS_PAUSE +#define __ARCH_WANT_SYS_SGETMASK +#define __ARCH_WANT_SYS_SIGNAL +#define __ARCH_WANT_SYS_TIME +#define __ARCH_WANT_SYS_UTIME +#define __ARCH_WANT_SYS_WAITPID +#define __ARCH_WANT_SYS_SOCKETCALL +#define __ARCH_WANT_SYS_FADVISE64 +#define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK +#define __ARCH_WANT_SYS_NICE +#define __ARCH_WANT_SYS_OLD_GETRLIMIT +#define __ARCH_WANT_SYS_OLDUMOUNT +#define __ARCH_WANT_SYS_SIGPENDING +#define __ARCH_WANT_SYS_SIGPROCMASK +#define __ARCH_WANT_SYS_RT_SIGACTION + +/* + * "Conditional" syscalls + * + * What we want is __attribute__((weak,alias("sys_ni_syscall"))), + * but it doesn't work on all toolchains, so we just do it by hand + */ +#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); + +#endif /* __KERNEL__ */ + +#endif /* _ASM_NIOS_UNISTD_H_ */ diff --git a/include/asm-nios2nommu/user.h b/include/asm-nios2nommu/user.h new file mode 100644 index 0000000..3cdc2ba --- /dev/null +++ b/include/asm-nios2nommu/user.h @@ -0,0 +1,112 @@ +#ifndef _NIOS2NOMMU_USER_H +#define _NIOS2NOMMU_USER_H + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/user.h + * + * Derived from M68knommu + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +#include + +/* Core file format: The core file is written in such a way that gdb + can understand it and provide useful information to the user (under + linux we use the 'trad-core' bfd). There are quite a number of + obstacles to being able to view the contents of the floating point + registers, and until these are solved you will not be able to view the + contents of them. Actually, you can read in the core file and look at + the contents of the user struct to find out what the floating point + registers contain. + The actual file contents are as follows: + UPAGE: 1 page consisting of a user struct that tells gdb what is present + in the file. Directly after this is a copy of the task_struct, which + is currently not used by gdb, but it may come in useful at some point. + All of the registers are stored as part of the upage. The upage should + always be only one page. + DATA: The data area is stored. We use current->end_text to + current->brk to pick up all of the user variables, plus any memory + that may have been malloced. No attempt is made to determine if a page + is demand-zero or if a page is totally unused, we just cover the entire + range. All of the addresses are rounded in such a way that an integral + number of pages is written. + STACK: We need the stack information in order to get a meaningful + backtrace. We need to write the data from (esp) to + current->start_stack, so we round each of these off in order to be able + to write an integer number of pages. + The minimum core file size is 3 pages, or 12288 bytes. +*/ + +struct user_m68kfp_struct { + unsigned long fpregs[8*3]; /* fp0-fp7 registers */ + unsigned long fpcntl[3]; /* fp control regs */ +}; + +/* This is needs more work, probably should look like gdb useage */ +struct user_regs_struct { + long r1,r2,r3,r4,r5,r6,r7,r8; + long r9,r10,r11,r12,r13,r14,r15; + long r16,r17,r18,r19,r20,r21,r22,r23; + long gp; + long sp; + long ra; + long fp; + long orig_r2; + long estatus; + long status_extension; + long ea; +}; + + +/* When the kernel dumps core, it starts by dumping the user struct - + this will be used by gdb to figure out where the data and stack segments + are within the file, and what virtual addresses to use. */ +struct user{ +/* We start with the registers, to mimic the way that "memory" is returned + from the ptrace(3,...) function. */ + struct user_regs_struct regs; /* Where the registers are actually stored */ +/* ptrace does not yet supply these. Someday.... */ + int u_fpvalid; /* True if math co-processor being used. */ + /* for this mess. Not yet used. */ + struct user_m68kfp_struct m68kfp; /* Math Co-processor registers. */ +/* The rest of this junk is to help gdb figure out what goes where */ + unsigned long int u_tsize; /* Text segment size (pages). */ + unsigned long int u_dsize; /* Data segment size (pages). */ + unsigned long int u_ssize; /* Stack segment size (pages). */ + unsigned long start_code; /* Starting virtual address of text. */ + unsigned long start_stack; /* Starting virtual address of stack area. + This is actually the bottom of the stack, + the top of the stack is always found in the + esp register. */ + long int signal; /* Signal that caused the core dump. */ + int reserved; /* No longer used */ + struct user_regs_struct *u_ar0; + /* Used by gdb to help find the values for */ + /* the registers. */ + struct user_m68kfp_struct* u_fpstate; /* Math Co-processor pointer. */ + unsigned long magic; /* To uniquely identify a core file */ + char u_comm[32]; /* User command that was responsible */ +}; +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif diff --git a/include/asm-nios2nommu/virtconvert.h b/include/asm-nios2nommu/virtconvert.h new file mode 100644 index 0000000..89bf899 --- /dev/null +++ b/include/asm-nios2nommu/virtconvert.h @@ -0,0 +1,46 @@ +#ifndef __NIOS_VIRT_CONVERT__ +#define __NIOS_VIRT_CONVERT__ + +/*-------------------------------------------------------------------- + * + * include/asm-nios2nommu/virtconvert.h + * + * Derived from various works, Alpha, ix86, M68K, Sparc, ...et al + * + * Copyright (C) 2004 Microtronix Datacom Ltd + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * + * Jan/20/2004 dgt NiosII + * + ---------------------------------------------------------------------*/ + + +/* + * Macros used for converting between virtual and physical mappings. + */ + +#ifdef __KERNEL__ + +#include +#include + +#define mm_ptov(vaddr) ((void *) (vaddr)) +#define mm_vtop(vaddr) ((unsigned long) (vaddr)) +#define phys_to_virt(vaddr) ((void *) (vaddr)) +#define virt_to_phys(vaddr) ((unsigned long) (vaddr)) + +#define virt_to_bus virt_to_phys +#define bus_to_virt phys_to_virt + +#endif /*__KERNEL__ */ +#endif /*__NIOS_VIRT_CONVERT__*/