From d5ef856b4628a4531c1627dec100eeff15e8b31e Mon Sep 17 00:00:00 2001 From: popcornmix Date: Tue, 17 Jan 2012 19:20:11 +0000 Subject: [PATCH 2/7] Main bcm2708 linux port Signed-off-by: popcornmix --- arch/arm/Kconfig | 14 + arch/arm/Makefile | 1 + arch/arm/boot/compressed/Makefile | 8 +- arch/arm/boot/compressed/divdi3.c | 338 +++++ arch/arm/boot/compressed/longlong.h | 151 ++ arch/arm/configs/bcmrpi_cutdown_defconfig | 1558 ++++++++++++++++++++ arch/arm/kernel/armksyms.c | 4 + arch/arm/lib/Makefile | 3 +- arch/arm/lib/divdi3.c | 338 +++++ arch/arm/lib/lib1funcs.S | 27 + arch/arm/lib/longlong.h | 151 ++ arch/arm/mach-bcm2708/Kconfig | 25 + arch/arm/mach-bcm2708/Makefile | 8 + arch/arm/mach-bcm2708/Makefile.boot | 3 + arch/arm/mach-bcm2708/armctrl.c | 399 +++++ arch/arm/mach-bcm2708/armctrl.h | 27 + arch/arm/mach-bcm2708/bcm2708.c | 658 +++++++++ arch/arm/mach-bcm2708/bcm2708.h | 51 + arch/arm/mach-bcm2708/bcm2708_gpio.c | 323 ++++ arch/arm/mach-bcm2708/clock.c | 61 + arch/arm/mach-bcm2708/clock.h | 24 + arch/arm/mach-bcm2708/dma.c | 397 +++++ arch/arm/mach-bcm2708/include/mach/arm_control.h | 419 ++++++ arch/arm/mach-bcm2708/include/mach/arm_power.h | 60 + arch/arm/mach-bcm2708/include/mach/clkdev.h | 7 + arch/arm/mach-bcm2708/include/mach/debug-macro.S | 24 + arch/arm/mach-bcm2708/include/mach/dma.h | 84 ++ arch/arm/mach-bcm2708/include/mach/entry-macro.S | 69 + arch/arm/mach-bcm2708/include/mach/frc.h | 38 + arch/arm/mach-bcm2708/include/mach/gpio.h | 48 + arch/arm/mach-bcm2708/include/mach/hardware.h | 28 + arch/arm/mach-bcm2708/include/mach/io.h | 28 + arch/arm/mach-bcm2708/include/mach/irqs.h | 190 +++ arch/arm/mach-bcm2708/include/mach/irqs.h.orig | 185 +++ arch/arm/mach-bcm2708/include/mach/memory.h | 59 + arch/arm/mach-bcm2708/include/mach/platform.h | 210 +++ arch/arm/mach-bcm2708/include/mach/platform.h.orig | 210 +++ arch/arm/mach-bcm2708/include/mach/power.h | 26 + arch/arm/mach-bcm2708/include/mach/system.h | 53 + arch/arm/mach-bcm2708/include/mach/timex.h | 23 + arch/arm/mach-bcm2708/include/mach/uncompress.h | 49 + arch/arm/mach-bcm2708/include/mach/vc_mem.h | 34 + arch/arm/mach-bcm2708/include/mach/vcio.h | 42 + arch/arm/mach-bcm2708/include/mach/vmalloc.h | 20 + arch/arm/mach-bcm2708/power.c | 193 +++ arch/arm/mach-bcm2708/vc_mem.c | 467 ++++++ arch/arm/mach-bcm2708/vcio.c | 309 ++++ arch/arm/mm/Kconfig | 2 +- arch/arm/mm/alignment.c | 6 +- arch/arm/mm/proc-v6.S | 15 +- drivers/mmc/host/Kconfig | 29 + drivers/mmc/host/Makefile | 2 + drivers/mmc/host/bcm2708_mci.c | 889 +++++++++++ drivers/mmc/host/bcm2708_mci.h | 101 ++ drivers/mmc/host/sdhci-bcm2708.c | 1461 ++++++++++++++++++ drivers/mmc/host/sdhci.c | 623 ++++++--- drivers/mmc/host/sdhci.h | 46 + include/linux/mmc/host.h | 29 + include/linux/mmc/sdhci.h | 10 + 59 files changed, 10481 insertions(+), 176 deletions(-) create mode 100644 arch/arm/boot/compressed/divdi3.c create mode 100644 arch/arm/boot/compressed/longlong.h create mode 100644 arch/arm/configs/bcmrpi_cutdown_defconfig create mode 100644 arch/arm/lib/divdi3.c create mode 100644 arch/arm/lib/longlong.h create mode 100644 arch/arm/mach-bcm2708/Kconfig create mode 100644 arch/arm/mach-bcm2708/Makefile create mode 100644 arch/arm/mach-bcm2708/Makefile.boot create mode 100644 arch/arm/mach-bcm2708/armctrl.c create mode 100644 arch/arm/mach-bcm2708/armctrl.h create mode 100644 arch/arm/mach-bcm2708/bcm2708.c create mode 100644 arch/arm/mach-bcm2708/bcm2708.h create mode 100644 arch/arm/mach-bcm2708/bcm2708_gpio.c create mode 100644 arch/arm/mach-bcm2708/clock.c create mode 100644 arch/arm/mach-bcm2708/clock.h create mode 100644 arch/arm/mach-bcm2708/dma.c create mode 100644 arch/arm/mach-bcm2708/include/mach/arm_control.h create mode 100644 arch/arm/mach-bcm2708/include/mach/arm_power.h create mode 100644 arch/arm/mach-bcm2708/include/mach/clkdev.h create mode 100644 arch/arm/mach-bcm2708/include/mach/debug-macro.S create mode 100644 arch/arm/mach-bcm2708/include/mach/dma.h create mode 100644 arch/arm/mach-bcm2708/include/mach/entry-macro.S create mode 100644 arch/arm/mach-bcm2708/include/mach/frc.h create mode 100644 arch/arm/mach-bcm2708/include/mach/gpio.h create mode 100644 arch/arm/mach-bcm2708/include/mach/hardware.h create mode 100644 arch/arm/mach-bcm2708/include/mach/io.h create mode 100644 arch/arm/mach-bcm2708/include/mach/irqs.h create mode 100644 arch/arm/mach-bcm2708/include/mach/irqs.h.orig create mode 100644 arch/arm/mach-bcm2708/include/mach/memory.h create mode 100644 arch/arm/mach-bcm2708/include/mach/platform.h create mode 100644 arch/arm/mach-bcm2708/include/mach/platform.h.orig create mode 100644 arch/arm/mach-bcm2708/include/mach/power.h create mode 100644 arch/arm/mach-bcm2708/include/mach/system.h create mode 100644 arch/arm/mach-bcm2708/include/mach/timex.h create mode 100644 arch/arm/mach-bcm2708/include/mach/uncompress.h create mode 100644 arch/arm/mach-bcm2708/include/mach/vc_mem.h create mode 100644 arch/arm/mach-bcm2708/include/mach/vcio.h create mode 100644 arch/arm/mach-bcm2708/include/mach/vmalloc.h create mode 100644 arch/arm/mach-bcm2708/power.c create mode 100644 arch/arm/mach-bcm2708/vc_mem.c create mode 100644 arch/arm/mach-bcm2708/vcio.c create mode 100644 drivers/mmc/host/bcm2708_mci.c create mode 100644 drivers/mmc/host/bcm2708_mci.h create mode 100644 drivers/mmc/host/sdhci-bcm2708.c --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -961,6 +961,20 @@ config PLAT_SPEAR help Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). +config ARCH_BCM2708 + bool "Broadcom BCM2708 family" + select CPU_V6 + select ARM_AMBA + select HAVE_CLK + select CLKDEV_LOOKUP + select GENERIC_CLOCKEVENTS + select ARM_ERRATA_411920 + select MACH_BCM2708 + select VC4 + select NEED_MACH_MEMORY_H + help + This enables support for Broadcom BCM2708 boards. + config ARCH_VT8500 bool "VIA/WonderMedia 85xx" select CPU_ARM926T @@ -1103,6 +1117,7 @@ source "arch/arm/plat-versatile/Kconfig" source "arch/arm/mach-vt8500/Kconfig" source "arch/arm/mach-w90x900/Kconfig" +source "arch/arm/mach-bcm2708/Kconfig" # Definitions to make life easier config ARCH_ACORN --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -196,6 +196,7 @@ machine-$(CONFIG_MACH_SPEAR310) := spea machine-$(CONFIG_MACH_SPEAR320) := spear3xx machine-$(CONFIG_MACH_SPEAR600) := spear6xx machine-$(CONFIG_ARCH_ZYNQ) := zynq +machine-$(CONFIG_ARCH_BCM2708) := bcm2708 # Platform directory name. This list is sorted alphanumerically # by CONFIG_* macro name. --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -147,11 +147,17 @@ LDFLAGS_vmlinux += -X LDFLAGS_vmlinux += -T # For __aeabi_uidivmod -lib1funcs = $(obj)/lib1funcs.o +lib1funcs = $(obj)/lib1funcs.o $(obj)/divdi3.o $(obj)/lib1funcs.S: $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.S $(call cmd,shipped) +$(obj)/longlong.h: $(srctree)/arch/$(SRCARCH)/lib/longlong.h FORCE + $(call cmd,shipped) + +$(obj)/divdi3.c: $(srctree)/arch/$(SRCARCH)/lib/divdi3.c $(obj)/longlong.h FORCE + $(call cmd,shipped) + # We need to prevent any GOTOFF relocs being used with references # to symbols in the .bss section since we cannot relocate them # independently from the rest at run time. This can be achieved by --- /dev/null +++ b/arch/arm/boot/compressed/divdi3.c @@ -0,0 +1,338 @@ +/* 64-bit multiplication and division + Copyright (C) 1989, 1992-1999, 2000, 2001, 2002, 2003 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "longlong.h" + +#define W_TYPE_SIZE (sizeof(long)) + +#ifdef __ARMEB__ +struct DWstruct { long high, low;}; +#else +struct DWstruct { long low, high;}; +#endif + +typedef union { struct DWstruct s; long long ll; } DWunion; + +/* Prototypes of exported functions. */ +long long __divdi3 (long long u, long long v); +long long __moddi3 (long long u, long long v); +unsigned long long __udivdi3 (unsigned long long u, unsigned long long v); +unsigned long long __umoddi3 (unsigned long long u, unsigned long long v); + +static unsigned long long +__udivmoddi4 (unsigned long long n, unsigned long long d, unsigned long long *rp) +{ + DWunion ww; + DWunion nn, dd; + DWunion rr; + unsigned long d0, d1, n0, n1, n2; + unsigned long q0, q1; + unsigned long b, bm; + + nn.ll = n; + dd.ll = d; + + d0 = dd.s.low; + d1 = dd.s.high; + n0 = nn.s.low; + n1 = nn.s.high; + +#if !UDIV_NEEDS_NORMALIZATION + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + udiv_qrnnd (q1, n1, 0, n1, d0); + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0. */ + } + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = 0; + *rp = rr.ll; + } + } + +#else /* UDIV_NEEDS_NORMALIZATION */ + + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + count_leading_zeros (bm, d0); + + if (bm != 0) + { + /* Normalize, i.e. make the most significant bit of the + denominator set. */ + + d0 = d0 << bm; + n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm)); + n0 = n0 << bm; + } + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0 >> bm. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + count_leading_zeros (bm, d0); + + if (bm == 0) + { + /* From (n1 >= d0) /\ (the most significant bit of d0 is set), + conclude (the most significant bit of n1 is set) /\ (the + leading quotient digit q1 = 1). + + This special case is necessary, not an optimization. + (Shifts counts of W_TYPE_SIZE are undefined.) */ + + n1 -= d0; + q1 = 1; + } + else + { + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q1, n1, n2, n1, d0); + } + + /* n1 != d0... */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0 >> bm. */ + } + + if (rp != 0) + { + rr.s.low = n0 >> bm; + rr.s.high = 0; + *rp = rr.ll; + } + } +#endif /* UDIV_NEEDS_NORMALIZATION */ + + else + { + if (d1 > n1) + { + /* 00 = nn / DD */ + + q0 = 0; + q1 = 0; + + /* Remainder in n1n0. */ + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + /* 0q = NN / dd */ + + count_leading_zeros (bm, d1); + if (bm == 0) + { + /* From (n1 >= d1) /\ (the most significant bit of d1 is set), + conclude (the most significant bit of n1 is set) /\ (the + quotient digit q0 = 0 or 1). + + This special case is necessary, not an optimization. */ + + /* The condition on the next line takes advantage of that + n1 >= d1 (true due to program flow). */ + if (n1 > d1 || n0 >= d0) + { + q0 = 1; + sub_ddmmss (n1, n0, n1, n0, d1, d0); + } + else + q0 = 0; + + q1 = 0; + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + unsigned long m1, m0; + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d1 = (d1 << bm) | (d0 >> b); + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q0, n1, n2, n1, d1); + umul_ppmm (m1, m0, q0, d0); + + if (m1 > n1 || (m1 == n1 && m0 > n0)) + { + q0--; + sub_ddmmss (m1, m0, m1, m0, d1, d0); + } + + q1 = 0; + + /* Remainder in (n1n0 - m1m0) >> bm. */ + if (rp != 0) + { + sub_ddmmss (n1, n0, n1, n0, m1, m0); + rr.s.low = (n1 << b) | (n0 >> bm); + rr.s.high = n1 >> bm; + *rp = rr.ll; + } + } + } + } + + ww.s.low = q0; + ww.s.high = q1; + return ww.ll; +} + +long long +__divdi3 (long long u, long long v) +{ + long c = 0; + long long w; + + if (u < 0) + { + c = ~c; + u = -u; + } + if (v < 0) + { + c = ~c; + v = -v; + } + w = __udivmoddi4 (u, v, 0); + if (c) + w = -w; + return w; +} + +long long +__moddi3 (long long u, long long v) +{ + long c = 0; + long long w; + + if (u < 0) + { + c = ~c; + u = -u; + } + if (v < 0) + v = -v; + __udivmoddi4 (u, v, &w); + if (c) + w = -w; + return w; +} + +unsigned long long +__udivdi3 (unsigned long long u, unsigned long long v) +{ + return __udivmoddi4 (u, v, 0); +} + +unsigned long long +__umoddi3 (unsigned long long u, unsigned long long v) +{ + unsigned long long w; + + __udivmoddi4 (u, v, &w); + return w; +} + +long long +__gnu_ldivmod_helper (long long a, + + long long b, + long long *remainder) +{ + long long quotient; + + quotient = __divdi3 (a, b); + *remainder = a - b * quotient; + + return quotient; +} + +unsigned long long + +__gnu_uldivmod_helper (unsigned long long a, + + unsigned long long b, + unsigned long long *remainder) +{ + unsigned long long quotient; + + quotient = __udivdi3 (a, b); + *remainder = a - b * quotient; + return quotient; +} --- /dev/null +++ b/arch/arm/boot/compressed/longlong.h @@ -0,0 +1,151 @@ +/* longlong.h -- based on code from gcc-2.95.3 + + definitions for mixed size 32/64 bit arithmetic. + Copyright (C) 1991, 92, 94, 95, 96, 1997, 1998 Free Software Foundation, Inc. + + This definition file 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, or (at your option) any later version. + + This definition file 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. */ + +/* Borrowed from GCC 2.95.3, I Molton 29/07/01 */ + +#define USItype unsigned long +#define SI_TYPE_SIZE sizeof(USItype) + +#define __BITS4 (SI_TYPE_SIZE / 4) +#define __ll_B (1L << (SI_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((USItype) (t) % __ll_B) +#define __ll_highpart(t) ((USItype) (t) / __ll_B) + +/* Define auxiliary asm macros. + + 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) + multiplies two USItype integers MULTIPLER and MULTIPLICAND, + and generates a two-part USItype product in HIGH_PROD and + LOW_PROD. + + 2) __umulsidi3(a,b) multiplies two USItype integers A and B, + and returns a UDItype product. This is just a variant of umul_ppmm. + + 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, + denominator) divides a two-word unsigned integer, composed by the + integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and + places the quotient in QUOTIENT and the remainder in REMAINDER. + HIGH_NUMERATOR must be less than DENOMINATOR for correct operation. + If, in addition, the most significant bit of DENOMINATOR must be 1, + then the pre-processor symbol UDIV_NEEDS_NORMALIZATION is defined to 1. + + 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, + denominator). Like udiv_qrnnd but the numbers are signed. The + quotient is rounded towards 0. + + 5) count_leading_zeros(count, x) counts the number of zero-bits from + the msb to the first non-zero bit. This is the number of steps X + needs to be shifted left to set the msb. Undefined for X == 0. + + 6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, + high_addend_2, low_addend_2) adds two two-word unsigned integers, + composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and + LOW_ADDEND_2 respectively. The result is placed in HIGH_SUM and + LOW_SUM. Overflow (i.e. carry out) is not stored anywhere, and is + lost. + + 7) sub_ddmmss(high_difference, low_difference, high_minuend, + low_minuend, high_subtrahend, low_subtrahend) subtracts two + two-word unsigned integers, composed by HIGH_MINUEND_1 and + LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2 + respectively. The result is placed in HIGH_DIFFERENCE and + LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, + and is lost. + + If any of these macros are left undefined for a particular CPU, + C macros are used. */ + +#if defined (__arm__) +#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ + __asm__ ("adds %1, %4, %5 \n\ + adc %0, %2, %3" \ + : "=r" ((USItype) (sh)), \ + "=&r" ((USItype) (sl)) \ + : "%r" ((USItype) (ah)), \ + "rI" ((USItype) (bh)), \ + "%r" ((USItype) (al)), \ + "rI" ((USItype) (bl))) +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + __asm__ ("subs %1, %4, %5 \n\ + sbc %0, %2, %3" \ + : "=r" ((USItype) (sh)), \ + "=&r" ((USItype) (sl)) \ + : "r" ((USItype) (ah)), \ + "rI" ((USItype) (bh)), \ + "r" ((USItype) (al)), \ + "rI" ((USItype) (bl))) +#define umul_ppmm(xh, xl, a, b) \ + __asm__ ("%@ Inlined umul_ppmm\n" \ + "umull %r1, %r0, %r2, %r3" \ + : "=&r" ((USItype)(xh)), \ + "=r" ((USItype)(xl)) \ + : "r" ((USItype)(a)), \ + "r" ((USItype)(b)) \ + : "r0", "r1") +#define count_leading_zeros(count, x) \ + __asm__ ("clz %0, %1" : "=r"(count) : "r"(x)) +#define UMUL_TIME 20 +#define UDIV_TIME 100 +#endif /* __arm__ */ + +#define __umulsidi3(u, v) \ + ({DIunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) + +#define __udiv_qrnnd_c(q, r, n1, n0, d) \ + do { \ + USItype __d1, __d0, __q1, __q0; \ + USItype __r1, __r0, __m; \ + __d1 = __ll_highpart (d); \ + __d0 = __ll_lowpart (d); \ + \ + __r1 = (n1) % __d1; \ + __q1 = (n1) / __d1; \ + __m = (USItype) __q1 * __d0; \ + __r1 = __r1 * __ll_B | __ll_highpart (n0); \ + if (__r1 < __m) \ + { \ + __q1--, __r1 += (d); \ + if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ + if (__r1 < __m) \ + __q1--, __r1 += (d); \ + } \ + __r1 -= __m; \ + \ + __r0 = __r1 % __d1; \ + __q0 = __r1 / __d1; \ + __m = (USItype) __q0 * __d0; \ + __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ + if (__r0 < __m) \ + { \ + __q0--, __r0 += (d); \ + if (__r0 >= (d)) \ + if (__r0 < __m) \ + __q0--, __r0 += (d); \ + } \ + __r0 -= __m; \ + \ + (q) = (USItype) __q1 * __ll_B | __q0; \ + (r) = __r0; \ + } while (0) + +#define UDIV_NEEDS_NORMALIZATION 1 +#define udiv_qrnnd __udiv_qrnnd_c --- /dev/null +++ b/arch/arm/configs/bcmrpi_cutdown_defconfig @@ -0,0 +1,1558 @@ +# +# Automatically generated file; DO NOT EDIT. +# Linux/arm 3.1.9 Kernel Configuration +# +CONFIG_ARM=y +CONFIG_SYS_SUPPORTS_APM_EMULATION=y +CONFIG_GENERIC_GPIO=y +# CONFIG_ARCH_USES_GETTIMEOFFSET is not set +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_KTIME_SCALAR=y +CONFIG_HAVE_PROC_CPU=y +CONFIG_STACKTRACE_SUPPORT=y +CONFIG_HAVE_LATENCYTOP_SUPPORT=y +CONFIG_LOCKDEP_SUPPORT=y +CONFIG_TRACE_IRQFLAGS_SUPPORT=y +CONFIG_HARDIRQS_SW_RESEND=y +CONFIG_GENERIC_IRQ_PROBE=y +CONFIG_RWSEM_GENERIC_SPINLOCK=y +CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_VECTORS_BASE=0xffff0000 +# CONFIG_ARM_PATCH_PHYS_VIRT is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" +CONFIG_HAVE_IRQ_WORK=y + +# +# General setup +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 +CONFIG_CROSS_COMPILE="" +CONFIG_LOCALVERSION="" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_HAVE_KERNEL_GZIP=y +CONFIG_HAVE_KERNEL_LZMA=y +CONFIG_HAVE_KERNEL_LZO=y +CONFIG_KERNEL_GZIP=y +# CONFIG_KERNEL_LZMA is not set +# CONFIG_KERNEL_LZO is not set +CONFIG_DEFAULT_HOSTNAME="(none)" +CONFIG_SWAP=y +CONFIG_SYSVIPC=y +CONFIG_SYSVIPC_SYSCTL=y +CONFIG_POSIX_MQUEUE=y +CONFIG_POSIX_MQUEUE_SYSCTL=y +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_FHANDLE is not set +# CONFIG_TASKSTATS is not set +# CONFIG_AUDIT is not set +CONFIG_HAVE_GENERIC_HARDIRQS=y + +# +# IRQ subsystem +# +CONFIG_GENERIC_HARDIRQS=y +CONFIG_HAVE_SPARSE_IRQ=y +CONFIG_GENERIC_IRQ_SHOW=y +# CONFIG_SPARSE_IRQ is not set + +# +# RCU Subsystem +# +CONFIG_TINY_RCU=y +# CONFIG_PREEMPT_RCU is not set +# CONFIG_RCU_TRACE is not set +# CONFIG_TREE_RCU_TRACE is not set +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_LOG_BUF_SHIFT=17 +# CONFIG_CGROUPS is not set +# CONFIG_NAMESPACES is not set +# CONFIG_SCHED_AUTOGROUP is not set +# CONFIG_SYSFS_DEPRECATED is not set +# CONFIG_RELAY is not set +# CONFIG_BLK_DEV_INITRD is not set +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_SYSCTL=y +CONFIG_ANON_INODES=y +CONFIG_EXPERT=y +# CONFIG_UID16 is not set +CONFIG_SYSCTL_SYSCALL=y +# CONFIG_KALLSYMS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +# CONFIG_ELF_CORE is not set +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_EPOLL=y +CONFIG_SIGNALFD=y +CONFIG_TIMERFD=y +CONFIG_EVENTFD=y +CONFIG_SHMEM=y +CONFIG_AIO=y +CONFIG_EMBEDDED=y +CONFIG_HAVE_PERF_EVENTS=y +CONFIG_PERF_USE_VMALLOC=y + +# +# Kernel Performance Events And Counters +# +# CONFIG_PERF_EVENTS is not set +# CONFIG_PERF_COUNTERS is not set +# CONFIG_VM_EVENT_COUNTERS is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_SLAB=y +# CONFIG_SLUB is not set +# CONFIG_SLOB is not set +# CONFIG_PROFILING is not set +CONFIG_HAVE_OPROFILE=y +# CONFIG_KPROBES is not set +CONFIG_HAVE_KPROBES=y +CONFIG_HAVE_KRETPROBES=y +CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y +CONFIG_HAVE_CLK=y +CONFIG_HAVE_DMA_API_DEBUG=y + +# +# GCOV-based kernel profiling +# +CONFIG_HAVE_GENERIC_DMA_COHERENT=y +CONFIG_SLABINFO=y +CONFIG_RT_MUTEXES=y +CONFIG_BASE_SMALL=0 +CONFIG_MODULES=y +# CONFIG_MODULE_FORCE_LOAD is not set +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +CONFIG_MODVERSIONS=y +CONFIG_MODULE_SRCVERSION_ALL=y +CONFIG_BLOCK=y +CONFIG_LBDAF=y +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_BLK_DEV_BSGLIB is not set +# CONFIG_BLK_DEV_INTEGRITY is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_DEADLINE=y +CONFIG_IOSCHED_CFQ=y +# CONFIG_DEFAULT_DEADLINE is not set +CONFIG_DEFAULT_CFQ=y +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="cfq" +# CONFIG_INLINE_SPIN_TRYLOCK is not set +# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set +# CONFIG_INLINE_SPIN_LOCK is not set +# CONFIG_INLINE_SPIN_LOCK_BH is not set +# CONFIG_INLINE_SPIN_LOCK_IRQ is not set +# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set +CONFIG_INLINE_SPIN_UNLOCK=y +# CONFIG_INLINE_SPIN_UNLOCK_BH is not set +CONFIG_INLINE_SPIN_UNLOCK_IRQ=y +# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set +# CONFIG_INLINE_READ_TRYLOCK is not set +# CONFIG_INLINE_READ_LOCK is not set +# CONFIG_INLINE_READ_LOCK_BH is not set +# CONFIG_INLINE_READ_LOCK_IRQ is not set +# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set +CONFIG_INLINE_READ_UNLOCK=y +# CONFIG_INLINE_READ_UNLOCK_BH is not set +CONFIG_INLINE_READ_UNLOCK_IRQ=y +# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set +# CONFIG_INLINE_WRITE_TRYLOCK is not set +# CONFIG_INLINE_WRITE_LOCK is not set +# CONFIG_INLINE_WRITE_LOCK_BH is not set +# CONFIG_INLINE_WRITE_LOCK_IRQ is not set +# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set +CONFIG_INLINE_WRITE_UNLOCK=y +# CONFIG_INLINE_WRITE_UNLOCK_BH is not set +CONFIG_INLINE_WRITE_UNLOCK_IRQ=y +# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set +# CONFIG_MUTEX_SPIN_ON_OWNER is not set +CONFIG_FREEZER=y + +# +# System Type +# +CONFIG_MMU=y +# CONFIG_ARCH_INTEGRATOR is not set +# CONFIG_ARCH_REALVIEW is not set +# CONFIG_ARCH_VERSATILE is not set +# CONFIG_ARCH_VEXPRESS is not set +# CONFIG_ARCH_AT91 is not set +# CONFIG_ARCH_BCMRING is not set +# CONFIG_ARCH_CLPS711X is not set +# CONFIG_ARCH_CNS3XXX is not set +# CONFIG_ARCH_GEMINI is not set +# CONFIG_ARCH_PRIMA2 is not set +# CONFIG_ARCH_EBSA110 is not set +# CONFIG_ARCH_EP93XX is not set +# CONFIG_ARCH_FOOTBRIDGE is not set +# CONFIG_ARCH_MXC is not set +# CONFIG_ARCH_MXS is not set +# CONFIG_ARCH_NETX is not set +# CONFIG_ARCH_H720X is not set +# CONFIG_ARCH_IOP13XX is not set +# CONFIG_ARCH_IOP32X is not set +# CONFIG_ARCH_IOP33X is not set +# CONFIG_ARCH_IXP23XX is not set +# CONFIG_ARCH_IXP2000 is not set +# CONFIG_ARCH_IXP4XX is not set +# CONFIG_ARCH_DOVE is not set +# CONFIG_ARCH_KIRKWOOD is not set +# CONFIG_ARCH_LPC32XX is not set +# CONFIG_ARCH_MV78XX0 is not set +# CONFIG_ARCH_ORION5X is not set +# CONFIG_ARCH_MMP is not set +# CONFIG_ARCH_KS8695 is not set +# CONFIG_ARCH_W90X900 is not set +# CONFIG_ARCH_NUC93X is not set +# CONFIG_ARCH_TEGRA is not set +# CONFIG_ARCH_PNX4008 is not set +# CONFIG_ARCH_PXA is not set +# CONFIG_ARCH_MSM is not set +# CONFIG_ARCH_SHMOBILE is not set +# CONFIG_ARCH_RPC is not set +# CONFIG_ARCH_SA1100 is not set +# CONFIG_ARCH_S3C2410 is not set +# CONFIG_ARCH_S3C64XX is not set +# CONFIG_ARCH_S5P64X0 is not set +# CONFIG_ARCH_S5PC100 is not set +# CONFIG_ARCH_S5PV210 is not set +# CONFIG_ARCH_EXYNOS4 is not set +# CONFIG_ARCH_SHARK is not set +# CONFIG_ARCH_TCC_926 is not set +# CONFIG_ARCH_U300 is not set +# CONFIG_ARCH_U8500 is not set +# CONFIG_ARCH_NOMADIK is not set +# CONFIG_ARCH_DAVINCI is not set +# CONFIG_ARCH_OMAP is not set +# CONFIG_PLAT_SPEAR is not set +CONFIG_ARCH_BCM2708=y +# CONFIG_ARCH_VT8500 is not set +# CONFIG_ARCH_ZYNQ is not set + +# +# System MMU +# + +# +# Broadcom BCM2708 Implementations +# +CONFIG_MACH_BCM2708=y +CONFIG_BCM2708_GPIO=y +CONFIG_BCM2708_VCMEM=y + +# +# Processor Type +# +CONFIG_CPU_V6=y +CONFIG_CPU_32v6=y +CONFIG_CPU_ABRT_EV6=y +CONFIG_CPU_PABRT_V6=y +CONFIG_CPU_CACHE_V6=y +CONFIG_CPU_CACHE_VIPT=y +CONFIG_CPU_COPY_V6=y +CONFIG_CPU_TLB_V6=y +CONFIG_CPU_HAS_ASID=y +CONFIG_CPU_CP15=y +CONFIG_CPU_CP15_MMU=y +CONFIG_CPU_USE_DOMAINS=y + +# +# Processor Features +# +CONFIG_ARM_THUMB=y +# CONFIG_CPU_ICACHE_DISABLE is not set +# CONFIG_CPU_DCACHE_DISABLE is not set +# CONFIG_CPU_BPREDICT_DISABLE is not set +CONFIG_ARM_L1_CACHE_SHIFT=5 +CONFIG_ARM_DMA_MEM_BUFFERABLE=y +CONFIG_CPU_HAS_PMU=y +CONFIG_ARM_ERRATA_411920=y +# CONFIG_ARM_ERRATA_364296 is not set + +# +# Bus support +# +CONFIG_ARM_AMBA=y +# CONFIG_PCI_SYSCALL is not set +# CONFIG_ARCH_SUPPORTS_MSI is not set +# CONFIG_PCCARD is not set + +# +# Kernel Features +# +CONFIG_TICK_ONESHOT=y +CONFIG_NO_HZ=y +# CONFIG_HIGH_RES_TIMERS is not set +CONFIG_GENERIC_CLOCKEVENTS_BUILD=y +CONFIG_VMSPLIT_3G=y +# CONFIG_VMSPLIT_2G is not set +# CONFIG_VMSPLIT_1G is not set +CONFIG_PAGE_OFFSET=0xC0000000 +CONFIG_PREEMPT_NONE=y +# CONFIG_PREEMPT_VOLUNTARY is not set +# CONFIG_PREEMPT is not set +CONFIG_HZ=100 +CONFIG_AEABI=y +CONFIG_OABI_COMPAT=y +# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set +# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set +CONFIG_HAVE_ARCH_PFN_VALID=y +# CONFIG_HIGHMEM is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +CONFIG_HAVE_MEMBLOCK=y +CONFIG_PAGEFLAGS_EXTENDED=y +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_COMPACTION is not set +# CONFIG_PHYS_ADDR_T_64BIT is not set +CONFIG_ZONE_DMA_FLAG=0 +CONFIG_VIRT_TO_BUS=y +# CONFIG_KSM is not set +CONFIG_DEFAULT_MMAP_MIN_ADDR=4096 +CONFIG_NEED_PER_CPU_KM=y +# CONFIG_CLEANCACHE is not set +CONFIG_FORCE_MAX_ZONEORDER=11 +CONFIG_ALIGNMENT_TRAP=y +# CONFIG_UACCESS_WITH_MEMCPY is not set +# CONFIG_SECCOMP is not set +# CONFIG_CC_STACKPROTECTOR is not set +# CONFIG_DEPRECATED_PARAM_STRUCT is not set + +# +# Boot options +# +# CONFIG_USE_OF is not set +CONFIG_ZBOOT_ROM_TEXT=0x0 +CONFIG_ZBOOT_ROM_BSS=0x0 +CONFIG_CMDLINE="dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext3 rootwait" +CONFIG_CMDLINE_FROM_BOOTLOADER=y +# CONFIG_CMDLINE_EXTEND is not set +# CONFIG_CMDLINE_FORCE is not set +# CONFIG_XIP_KERNEL is not set +# CONFIG_KEXEC is not set +# CONFIG_CRASH_DUMP is not set +# CONFIG_AUTO_ZRELADDR is not set + +# +# CPU Power Management +# +CONFIG_CPU_IDLE=y +CONFIG_CPU_IDLE_GOV_LADDER=y +CONFIG_CPU_IDLE_GOV_MENU=y + +# +# Floating point emulation +# + +# +# At least one emulation must be selected +# +# CONFIG_FPE_NWFPE is not set +# CONFIG_FPE_FASTFPE is not set +CONFIG_VFP=y + +# +# Userspace binary formats +# +CONFIG_BINFMT_ELF=y +CONFIG_HAVE_AOUT=y +# CONFIG_BINFMT_AOUT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +CONFIG_SUSPEND=y +CONFIG_SUSPEND_FREEZER=y +CONFIG_PM_SLEEP=y +# CONFIG_PM_RUNTIME is not set +CONFIG_PM=y +# CONFIG_PM_DEBUG is not set +# CONFIG_APM_EMULATION is not set +CONFIG_PM_CLK=y +CONFIG_ARCH_SUSPEND_POSSIBLE=y +CONFIG_NET=y + +# +# Networking options +# +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_XFRM=y +CONFIG_XFRM_USER=y +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_XFRM_STATISTICS is not set +CONFIG_NET_KEY=m +# CONFIG_NET_KEY_MIGRATE is not set +CONFIG_INET=y +CONFIG_IP_MULTICAST=y +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +# CONFIG_IP_PNP_BOOTP is not set +CONFIG_IP_PNP_RARP=y +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE_DEMUX is not set +# CONFIG_IP_MROUTE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# 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_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_LRO 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_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETWORK_PHY_TIMESTAMPING is not set +# CONFIG_NETFILTER is not set +# CONFIG_IP_DCCP is not set +# CONFIG_IP_SCTP is not set +# CONFIG_RDS is not set +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_L2TP is not set +# CONFIG_BRIDGE is not set +# CONFIG_NET_DSA 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 +# CONFIG_PHONET is not set +# CONFIG_IEEE802154 is not set +# CONFIG_NET_SCHED is not set +# CONFIG_DCB is not set +CONFIG_DNS_RESOLVER=y +# CONFIG_BATMAN_ADV is not set + +# +# Network testing +# +CONFIG_NET_PKTGEN=m +# CONFIG_HAMRADIO is not set +# CONFIG_CAN is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_AF_RXRPC is not set +CONFIG_WIRELESS=y +CONFIG_WEXT_CORE=y +CONFIG_WEXT_PROC=y +CONFIG_CFG80211=y +# CONFIG_NL80211_TESTMODE is not set +# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set +# CONFIG_CFG80211_REG_DEBUG is not set +CONFIG_CFG80211_DEFAULT_PS=y +# CONFIG_CFG80211_INTERNAL_REGDB is not set +CONFIG_CFG80211_WEXT=y +CONFIG_WIRELESS_EXT_SYSFS=y +# CONFIG_LIB80211 is not set +# CONFIG_MAC80211 is not set +# CONFIG_WIMAX is not set +# CONFIG_RFKILL is not set +# CONFIG_NET_9P is not set +# CONFIG_CAIF is not set +# CONFIG_CEPH_LIB is not set +# CONFIG_NFC is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" +# CONFIG_DEVTMPFS is not set +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +CONFIG_FW_LOADER=y +CONFIG_FIRMWARE_IN_KERNEL=y +CONFIG_EXTRA_FIRMWARE="" +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set +# CONFIG_CONNECTOR is not set +# CONFIG_MTD is not set +# CONFIG_PARPORT is not set +CONFIG_BLK_DEV=y +# CONFIG_BLK_DEV_COW_COMMON is not set +CONFIG_BLK_DEV_LOOP=y +CONFIG_BLK_DEV_LOOP_MIN_COUNT=8 +# CONFIG_BLK_DEV_CRYPTOLOOP is not set + +# +# DRBD disabled because PROC_FS, INET or CONNECTOR not selected +# +# CONFIG_BLK_DEV_NBD is not set +# CONFIG_BLK_DEV_UB is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +# CONFIG_BLK_DEV_XIP is not set +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set +# CONFIG_MG_DISK is not set +# CONFIG_BLK_DEV_RBD is not set +# CONFIG_SENSORS_LIS3LV02D is not set +CONFIG_MISC_DEVICES=y +# CONFIG_ENCLOSURE_SERVICES is not set +# CONFIG_C2PORT is not set + +# +# EEPROM support +# +# CONFIG_EEPROM_93CX6 is not set +# CONFIG_IWMC3200TOP is not set + +# +# Texas Instruments shared transport line discipline +# +# CONFIG_TI_ST is not set +CONFIG_BCM2708_VCHIQ=y +CONFIG_HAVE_IDE=y +# CONFIG_IDE is not set + +# +# SCSI device support +# +CONFIG_SCSI_MOD=y +# CONFIG_RAID_ATTRS is not set +CONFIG_SCSI=y +CONFIG_SCSI_DMA=y +# CONFIG_SCSI_TGT is not set +# CONFIG_SCSI_NETLINK is not set +# CONFIG_SCSI_PROC_FS is not set + +# +# SCSI support type (disk, tape, CD-ROM) +# +CONFIG_BLK_DEV_SD=m +# CONFIG_CHR_DEV_ST is not set +# CONFIG_CHR_DEV_OSST is not set +CONFIG_BLK_DEV_SR=m +# CONFIG_BLK_DEV_SR_VENDOR is not set +# CONFIG_CHR_DEV_SG is not set +# CONFIG_CHR_DEV_SCH is not set +CONFIG_SCSI_MULTI_LUN=y +# CONFIG_SCSI_CONSTANTS is not set +# CONFIG_SCSI_LOGGING is not set +# CONFIG_SCSI_SCAN_ASYNC is not set +CONFIG_SCSI_WAIT_SCAN=m + +# +# SCSI Transports +# +# CONFIG_SCSI_SPI_ATTRS is not set +# CONFIG_SCSI_FC_ATTRS is not set +# CONFIG_SCSI_ISCSI_ATTRS is not set +# CONFIG_SCSI_SAS_ATTRS is not set +# CONFIG_SCSI_SAS_LIBSAS is not set +# CONFIG_SCSI_SRP_ATTRS is not set +# CONFIG_SCSI_LOWLEVEL is not set +# CONFIG_SCSI_DH is not set +# CONFIG_SCSI_OSD_INITIATOR is not set +# CONFIG_ATA is not set +# CONFIG_MD is not set +# CONFIG_TARGET_CORE is not set +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_MACVLAN is not set +# CONFIG_EQUALIZER is not set +CONFIG_TUN=m +# CONFIG_VETH is not set +CONFIG_MII=y +CONFIG_PHYLIB=m + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +# CONFIG_CICADA_PHY is not set +# CONFIG_VITESSE_PHY is not set +# CONFIG_SMSC_PHY is not set +# CONFIG_BROADCOM_PHY is not set +# CONFIG_ICPLUS_PHY is not set +# CONFIG_REALTEK_PHY is not set +# CONFIG_NATIONAL_PHY is not set +# CONFIG_STE10XP is not set +# CONFIG_LSI_ET1011C_PHY is not set +# CONFIG_MICREL_PHY is not set +CONFIG_MDIO_BITBANG=m +# CONFIG_MDIO_GPIO is not set +CONFIG_NET_ETHERNET=y +CONFIG_AX88796=m +# CONFIG_AX88796_93CX6 is not set +# CONFIG_SMC91X is not set +# CONFIG_DM9000 is not set +# CONFIG_ETHOC is not set +# CONFIG_SMC911X is not set +# CONFIG_SMSC911X is not set +# CONFIG_DNET is not set +# CONFIG_IBM_NEW_EMAC_ZMII is not set +# CONFIG_IBM_NEW_EMAC_RGMII is not set +# CONFIG_IBM_NEW_EMAC_TAH is not set +# CONFIG_IBM_NEW_EMAC_EMAC4 is not set +# CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set +# CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set +# CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set +# CONFIG_B44 is not set +# CONFIG_KS8851_MLL is not set +# CONFIG_FTMAC100 is not set +# CONFIG_NETDEV_1000 is not set +# CONFIG_NETDEV_10000 is not set +# CONFIG_WLAN is not set + +# +# Enable WiMAX (Networking options) to see the WiMAX drivers +# + +# +# USB Network Adapters +# +# CONFIG_USB_CATC is not set +# CONFIG_USB_KAWETH is not set +# CONFIG_USB_PEGASUS is not set +# CONFIG_USB_RTL8150 is not set +CONFIG_USB_USBNET=y +CONFIG_USB_NET_AX8817X=m +# CONFIG_USB_NET_CDCETHER is not set +# CONFIG_USB_NET_CDC_EEM is not set +CONFIG_USB_NET_CDC_NCM=y +# CONFIG_USB_NET_DM9601 is not set +# CONFIG_USB_NET_SMSC75XX is not set +CONFIG_USB_NET_SMSC95XX=y +# CONFIG_USB_NET_GL620A is not set +# CONFIG_USB_NET_NET1080 is not set +# CONFIG_USB_NET_PLUSB is not set +# CONFIG_USB_NET_MCS7830 is not set +# CONFIG_USB_NET_RNDIS_HOST is not set +# CONFIG_USB_NET_CDC_SUBSET is not set +# CONFIG_USB_NET_ZAURUS is not set +# CONFIG_USB_NET_CX82310_ETH is not set +# CONFIG_USB_NET_KALMIA is not set +# CONFIG_USB_NET_INT51X1 is not set +# CONFIG_USB_IPHETH is not set +# CONFIG_USB_SIERRA_NET is not set +# CONFIG_WAN is not set + +# +# CAIF transport drivers +# +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set +# CONFIG_ISDN is not set +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set +# CONFIG_INPUT_POLLDEV is not set +# CONFIG_INPUT_SPARSEKMAP is not set + +# +# Userland interfaces +# +CONFIG_INPUT_MOUSEDEV=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024 +CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768 +# CONFIG_INPUT_JOYDEV is not set +CONFIG_INPUT_EVDEV=m +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TABLET is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +CONFIG_INPUT_MISC=y +# CONFIG_INPUT_AD714X is not set +# CONFIG_INPUT_ATI_REMOTE is not set +# CONFIG_INPUT_ATI_REMOTE2 is not set +# CONFIG_INPUT_KEYSPAN_REMOTE is not set +# CONFIG_INPUT_POWERMATE is not set +# CONFIG_INPUT_YEALINK is not set +# CONFIG_INPUT_CM109 is not set +CONFIG_INPUT_UINPUT=m +# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set +# CONFIG_INPUT_ADXL34X is not set +# CONFIG_INPUT_CMA3000 is not set + +# +# Hardware I/O ports +# +CONFIG_SERIO=m +CONFIG_SERIO_SERPORT=m +# CONFIG_SERIO_AMBAKMI is not set +# CONFIG_SERIO_LIBPS2 is not set +CONFIG_SERIO_RAW=m +# CONFIG_SERIO_ALTERA_PS2 is not set +# CONFIG_SERIO_PS2MULT is not set +CONFIG_GAMEPORT=m +CONFIG_GAMEPORT_NS558=m +CONFIG_GAMEPORT_L4=m + +# +# Character devices +# +CONFIG_VT=y +CONFIG_CONSOLE_TRANSLATIONS=y +CONFIG_VT_CONSOLE=y +CONFIG_HW_CONSOLE=y +CONFIG_VT_HW_CONSOLE_BINDING=y +CONFIG_UNIX98_PTYS=y +# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set +# CONFIG_LEGACY_PTYS is not set +# CONFIG_SERIAL_NONSTANDARD is not set +# CONFIG_N_GSM is not set +# CONFIG_TRACE_SINK is not set +# CONFIG_DEVKMEM is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +# CONFIG_SERIAL_AMBA_PL010 is not set +CONFIG_SERIAL_AMBA_PL011=y +CONFIG_SERIAL_AMBA_PL011_CONSOLE=y +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_TIMBERDALE is not set +# CONFIG_SERIAL_ALTERA_JTAGUART is not set +# CONFIG_SERIAL_ALTERA_UART is not set +# CONFIG_SERIAL_XILINX_PS_UART is not set +# CONFIG_TTY_PRINTK is not set +# CONFIG_HVC_DCC is not set +# CONFIG_IPMI_HANDLER is not set +# CONFIG_HW_RANDOM is not set +# CONFIG_R3964 is not set +CONFIG_RAW_DRIVER=y +CONFIG_MAX_RAW_DEVS=256 +# CONFIG_TCG_TPM is not set +# CONFIG_RAMOOPS is not set +# CONFIG_I2C is not set +# CONFIG_SPI is not set + +# +# PPS support +# +# CONFIG_PPS is not set + +# +# PPS generators support +# + +# +# PTP clock support +# + +# +# Enable Device Drivers -> PPS to see the PTP clock options. +# +CONFIG_ARCH_REQUIRE_GPIOLIB=y +CONFIG_GPIOLIB=y +# CONFIG_DEBUG_GPIO is not set +CONFIG_GPIO_SYSFS=y + +# +# Memory mapped GPIO drivers: +# +# CONFIG_GPIO_GENERIC_PLATFORM is not set +# CONFIG_GPIO_IT8761E is not set +# CONFIG_GPIO_PL061 is not set + +# +# I2C GPIO expanders: +# + +# +# PCI GPIO expanders: +# + +# +# SPI GPIO expanders: +# + +# +# AC97 GPIO expanders: +# + +# +# MODULbus GPIO expanders: +# +# CONFIG_W1 is not set +# CONFIG_POWER_SUPPLY is not set +# CONFIG_HWMON is not set +# CONFIG_THERMAL is not set +# CONFIG_WATCHDOG is not set +CONFIG_SSB_POSSIBLE=y + +# +# Sonics Silicon Backplane +# +# CONFIG_SSB is not set +CONFIG_BCMA_POSSIBLE=y + +# +# Broadcom specific AMBA +# +# CONFIG_BCMA is not set +# CONFIG_MFD_SUPPORT is not set +# CONFIG_REGULATOR is not set +# CONFIG_MEDIA_SUPPORT is not set + +# +# Graphics support +# +# CONFIG_DRM is not set +# CONFIG_VGASTATE is not set +# CONFIG_VIDEO_OUTPUT_CONTROL is not set +CONFIG_FB=y +# CONFIG_FIRMWARE_EDID is not set +# CONFIG_FB_DDC is not set +# CONFIG_FB_BOOT_VESA_SUPPORT is not set +CONFIG_FB_CFB_FILLRECT=y +CONFIG_FB_CFB_COPYAREA=y +CONFIG_FB_CFB_IMAGEBLIT=y +# CONFIG_FB_CFB_REV_PIXELS_IN_BYTE is not set +# CONFIG_FB_SYS_FILLRECT is not set +# CONFIG_FB_SYS_COPYAREA is not set +# CONFIG_FB_SYS_IMAGEBLIT is not set +# CONFIG_FB_FOREIGN_ENDIAN is not set +# CONFIG_FB_SYS_FOPS is not set +# CONFIG_FB_WMT_GE_ROPS is not set +# CONFIG_FB_SVGALIB is not set +# CONFIG_FB_MACMODES is not set +# CONFIG_FB_BACKLIGHT is not set +# CONFIG_FB_MODE_HELPERS is not set +# CONFIG_FB_TILEBLITTING is not set + +# +# Frame buffer hardware drivers +# +CONFIG_FB_BCM2708=y +# CONFIG_FB_ARMCLCD is not set +# CONFIG_FB_S1D13XXX is not set +# CONFIG_FB_UDL is not set +# CONFIG_FB_VIRTUAL is not set +# CONFIG_FB_METRONOME is not set +# CONFIG_FB_BROADSHEET is not set +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set + +# +# Display device support +# +# CONFIG_DISPLAY_SUPPORT is not set + +# +# Console display driver support +# +CONFIG_DUMMY_CONSOLE=y +CONFIG_FRAMEBUFFER_CONSOLE=y +# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set +# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set +# CONFIG_FONTS is not set +CONFIG_FONT_8x8=y +CONFIG_FONT_8x16=y +CONFIG_LOGO=y +# CONFIG_LOGO_LINUX_MONO is not set +# CONFIG_LOGO_LINUX_VGA16 is not set +CONFIG_LOGO_LINUX_CLUT224=y +# CONFIG_SOUND is not set +CONFIG_HID_SUPPORT=y +CONFIG_HID=y +# CONFIG_HIDRAW is not set + +# +# USB Input Devices +# +CONFIG_USB_HID=y +CONFIG_HID_PID=y +CONFIG_USB_HIDDEV=y + +# +# Special HID drivers +# +CONFIG_HID_A4TECH=m +# CONFIG_HID_ACRUX is not set +CONFIG_HID_APPLE=m +CONFIG_HID_BELKIN=m +CONFIG_HID_CHERRY=m +CONFIG_HID_CHICONY=m +CONFIG_HID_CYPRESS=m +CONFIG_HID_DRAGONRISE=m +# CONFIG_DRAGONRISE_FF is not set +# CONFIG_HID_EMS_FF is not set +CONFIG_HID_EZKEY=m +# CONFIG_HID_HOLTEK is not set +# CONFIG_HID_KEYTOUCH is not set +CONFIG_HID_KYE=m +# CONFIG_HID_UCLOGIC is not set +# CONFIG_HID_WALTOP is not set +CONFIG_HID_GYRATION=m +CONFIG_HID_TWINHAN=m +CONFIG_HID_KENSINGTON=m +# CONFIG_HID_LCPOWER is not set +CONFIG_HID_LOGITECH=m +# CONFIG_LOGITECH_FF is not set +# CONFIG_LOGIRUMBLEPAD2_FF is not set +# CONFIG_LOGIG940_FF is not set +# CONFIG_LOGIWII_FF is not set +CONFIG_HID_MICROSOFT=m +CONFIG_HID_MONTEREY=m +# CONFIG_HID_MULTITOUCH is not set +# CONFIG_HID_NTRIG is not set +CONFIG_HID_ORTEK=m +CONFIG_HID_PANTHERLORD=m +# CONFIG_PANTHERLORD_FF is not set +CONFIG_HID_PETALYNX=m +# CONFIG_HID_PICOLCD is not set +# CONFIG_HID_QUANTA is not set +# CONFIG_HID_ROCCAT is not set +CONFIG_HID_SAMSUNG=m +CONFIG_HID_SONY=m +# CONFIG_HID_SPEEDLINK is not set +CONFIG_HID_SUNPLUS=m +CONFIG_HID_GREENASIA=m +# CONFIG_GREENASIA_FF is not set +CONFIG_HID_SMARTJOYPLUS=m +# CONFIG_SMARTJOYPLUS_FF is not set +CONFIG_HID_TOPSEED=m +CONFIG_HID_THRUSTMASTER=m +# CONFIG_THRUSTMASTER_FF is not set +CONFIG_HID_ZEROPLUS=m +# CONFIG_ZEROPLUS_FF is not set +# CONFIG_HID_ZYDACRON is not set +CONFIG_USB_SUPPORT=y +CONFIG_USB_ARCH_HAS_HCD=y +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set +CONFIG_USB=y +# CONFIG_USB_DEBUG is not set +CONFIG_USB_ANNOUNCE_NEW_DEVICES=y + +# +# Miscellaneous USB options +# +# CONFIG_USB_DEVICEFS is not set +CONFIG_USB_DEVICE_CLASS=y +# CONFIG_USB_DYNAMIC_MINORS is not set +# CONFIG_USB_OTG_WHITELIST is not set +# CONFIG_USB_OTG_BLACKLIST_HUB is not set +CONFIG_USB_MON=m +# CONFIG_USB_WUSB is not set +# CONFIG_USB_WUSB_CBAF is not set + +# +# USB Host Controller Drivers +# +# CONFIG_USB_C67X00_HCD is not set +# CONFIG_USB_OXU210HP_HCD is not set +# CONFIG_USB_ISP116X_HCD is not set +# CONFIG_USB_ISP1760_HCD is not set +# CONFIG_USB_ISP1362_HCD is not set +# CONFIG_USB_SL811_HCD is not set +# CONFIG_USB_R8A66597_HCD is not set +# CONFIG_USB_HWA_HCD is not set +CONFIG_USB_DWCOTG=y + +# +# USB Device Class drivers +# +# CONFIG_USB_ACM is not set +# CONFIG_USB_PRINTER is not set +# CONFIG_USB_WDM is not set +# CONFIG_USB_TMC is not set + +# +# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may +# + +# +# also be needed; see USB_STORAGE Help for more info +# +CONFIG_USB_STORAGE=y +# CONFIG_USB_STORAGE_DEBUG is not set +# CONFIG_USB_STORAGE_REALTEK is not set +# CONFIG_USB_STORAGE_DATAFAB is not set +# CONFIG_USB_STORAGE_FREECOM is not set +# CONFIG_USB_STORAGE_ISD200 is not set +# CONFIG_USB_STORAGE_USBAT is not set +# CONFIG_USB_STORAGE_SDDR09 is not set +# CONFIG_USB_STORAGE_SDDR55 is not set +# CONFIG_USB_STORAGE_JUMPSHOT is not set +# CONFIG_USB_STORAGE_ALAUDA is not set +# CONFIG_USB_STORAGE_ONETOUCH is not set +# CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_STORAGE_CYPRESS_ATACB is not set +# CONFIG_USB_STORAGE_ENE_UB6250 is not set +# CONFIG_USB_UAS is not set +CONFIG_USB_LIBUSUAL=y + +# +# USB Imaging devices +# +# CONFIG_USB_MDC800 is not set +# CONFIG_USB_MICROTEK is not set + +# +# USB port drivers +# +# CONFIG_USB_SERIAL is not set + +# +# USB Miscellaneous drivers +# +# CONFIG_USB_EMI62 is not set +# CONFIG_USB_EMI26 is not set +# CONFIG_USB_ADUTUX is not set +# CONFIG_USB_SEVSEG is not set +# CONFIG_USB_RIO500 is not set +# CONFIG_USB_LEGOTOWER is not set +# CONFIG_USB_LCD is not set +# CONFIG_USB_LED is not set +# CONFIG_USB_CYPRESS_CY7C63 is not set +# CONFIG_USB_CYTHERM is not set +# CONFIG_USB_IDMOUSE is not set +# CONFIG_USB_FTDI_ELAN is not set +# CONFIG_USB_APPLEDISPLAY is not set +# CONFIG_USB_LD is not set +# CONFIG_USB_TRANCEVIBRATOR is not set +# CONFIG_USB_IOWARRIOR is not set +# CONFIG_USB_TEST is not set +# CONFIG_USB_ISIGHTFW is not set +# CONFIG_USB_YUREX is not set +# CONFIG_USB_GADGET is not set + +# +# OTG and related infrastructure +# +# CONFIG_USB_GPIO_VBUS is not set +# CONFIG_USB_ULPI is not set +# CONFIG_NOP_USB_XCEIV is not set +CONFIG_MMC=y +# CONFIG_MMC_DEBUG is not set +# CONFIG_MMC_UNSAFE_RESUME is not set +# CONFIG_MMC_CLKGATE is not set + +# +# MMC/SD/SDIO Card Drivers +# +CONFIG_MMC_BLOCK=y +CONFIG_MMC_BLOCK_MINORS=8 +CONFIG_MMC_BLOCK_BOUNCE=y +# CONFIG_SDIO_UART is not set +# CONFIG_MMC_TEST is not set + +# +# MMC/SD/SDIO Host Controller Drivers +# +# CONFIG_MMC_ARMMMCI is not set +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_IO_ACCESSORS=y +CONFIG_MMC_SDHCI_PLTFM=y +# CONFIG_MMC_SDHCI_PXAV3 is not set +# CONFIG_MMC_SDHCI_PXAV2 is not set +CONFIG_MMC_SDHCI_BCM2708=y +CONFIG_MMC_SDHCI_BCM2708_DMA=y +# CONFIG_MMC_BCM2708 is not set +# CONFIG_MMC_DW is not set +# CONFIG_MMC_VUB300 is not set +# CONFIG_MMC_USHC is not set +# CONFIG_MEMSTICK is not set +CONFIG_NEW_LEDS=y +CONFIG_LEDS_CLASS=y + +# +# LED drivers +# +CONFIG_LEDS_GPIO=y +# CONFIG_LEDS_LT3593 is not set +CONFIG_LEDS_TRIGGERS=y + +# +# LED Triggers +# +CONFIG_LEDS_TRIGGER_TIMER=m +CONFIG_LEDS_TRIGGER_HEARTBEAT=m +# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set +# CONFIG_LEDS_TRIGGER_GPIO is not set +CONFIG_LEDS_TRIGGER_DEFAULT_ON=m + +# +# iptables trigger is under Netfilter config (LED target) +# +# CONFIG_ACCESSIBILITY is not set +CONFIG_RTC_LIB=y +# CONFIG_RTC_CLASS is not set +# CONFIG_DMADEVICES is not set +# CONFIG_AUXDISPLAY is not set +# CONFIG_UIO is not set + +# +# Virtio drivers +# +# CONFIG_VIRTIO_BALLOON is not set +# CONFIG_STAGING is not set +CONFIG_CLKDEV_LOOKUP=y +# CONFIG_IOMMU_SUPPORT is not set +# CONFIG_VIRT_DRIVERS is not set + +# +# File systems +# +CONFIG_EXT2_FS=m +CONFIG_EXT2_FS_XATTR=y +CONFIG_EXT2_FS_POSIX_ACL=y +CONFIG_EXT2_FS_SECURITY=y +CONFIG_EXT2_FS_XIP=y +CONFIG_EXT3_FS=y +# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set +CONFIG_EXT3_FS_XATTR=y +CONFIG_EXT3_FS_POSIX_ACL=y +CONFIG_EXT3_FS_SECURITY=y +CONFIG_EXT4_FS=m +CONFIG_EXT4_FS_XATTR=y +CONFIG_EXT4_FS_POSIX_ACL=y +CONFIG_EXT4_FS_SECURITY=y +# CONFIG_EXT4_DEBUG is not set +CONFIG_FS_XIP=y +CONFIG_JBD=y +CONFIG_JBD2=m +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_BTRFS_FS is not set +# CONFIG_NILFS2_FS is not set +CONFIG_FS_POSIX_ACL=y +CONFIG_FILE_LOCKING=y +CONFIG_FSNOTIFY=y +CONFIG_DNOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_FANOTIFY is not set +# CONFIG_QUOTA is not set +# CONFIG_QUOTACTL is not set +CONFIG_AUTOFS4_FS=y +CONFIG_FUSE_FS=m +CONFIG_CUSE=m + +# +# Caches +# +CONFIG_FSCACHE=y +# CONFIG_FSCACHE_STATS is not set +# CONFIG_FSCACHE_HISTOGRAM is not set +# CONFIG_FSCACHE_DEBUG is not set +# CONFIG_FSCACHE_OBJECT_LIST is not set +CONFIG_CACHEFILES=y +# CONFIG_CACHEFILES_DEBUG is not set +# CONFIG_CACHEFILES_HISTOGRAM is not set + +# +# CD-ROM/DVD Filesystems +# +CONFIG_ISO9660_FS=m +CONFIG_JOLIET=y +CONFIG_ZISOFS=y +CONFIG_UDF_FS=m +CONFIG_UDF_NLS=y + +# +# DOS/FAT/NT Filesystems +# +CONFIG_FAT_FS=y +CONFIG_MSDOS_FS=y +CONFIG_VFAT_FS=y +CONFIG_FAT_DEFAULT_CODEPAGE=437 +CONFIG_FAT_DEFAULT_IOCHARSET="ascii" +CONFIG_NTFS_FS=m +# CONFIG_NTFS_DEBUG is not set +# CONFIG_NTFS_RW is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_PROC_PAGE_MONITOR=y +CONFIG_SYSFS=y +CONFIG_TMPFS=y +# CONFIG_TMPFS_POSIX_ACL is not set +# CONFIG_TMPFS_XATTR is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_CONFIGFS_FS=y +CONFIG_MISC_FILESYSTEMS=y +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_ECRYPT_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_LOGFS is not set +# CONFIG_CRAMFS is not set +# CONFIG_SQUASHFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_OMFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_ROMFS_FS is not set +# CONFIG_PSTORE is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set +CONFIG_NETWORK_FILESYSTEMS=y +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +# CONFIG_NFS_V4_1 is not set +CONFIG_ROOT_NFS=y +CONFIG_NFS_FSCACHE=y +# CONFIG_NFS_USE_LEGACY_DNS is not set +CONFIG_NFS_USE_KERNEL_DNS=y +# CONFIG_NFS_USE_NEW_IDMAPPER is not set +# CONFIG_NFSD is not set +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_ACL_SUPPORT=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +# CONFIG_CEPH_FS is not set +CONFIG_CIFS=m +# CONFIG_CIFS_STATS is not set +CONFIG_CIFS_WEAK_PW_HASH=y +# CONFIG_CIFS_UPCALL is not set +CONFIG_CIFS_XATTR=y +CONFIG_CIFS_POSIX=y +# CONFIG_CIFS_DEBUG2 is not set +# CONFIG_CIFS_DFS_UPCALL is not set +# CONFIG_CIFS_FSCACHE is not set +# CONFIG_CIFS_ACL is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set + +# +# Partition Types +# +CONFIG_PARTITION_ADVANCED=y +# CONFIG_ACORN_PARTITION is not set +# CONFIG_OSF_PARTITION is not set +# CONFIG_AMIGA_PARTITION is not set +# CONFIG_ATARI_PARTITION is not set +CONFIG_MAC_PARTITION=y +CONFIG_MSDOS_PARTITION=y +# CONFIG_BSD_DISKLABEL is not set +# CONFIG_MINIX_SUBPARTITION is not set +# CONFIG_SOLARIS_X86_PARTITION is not set +# CONFIG_UNIXWARE_DISKLABEL is not set +# CONFIG_LDM_PARTITION is not set +# CONFIG_SGI_PARTITION is not set +# CONFIG_ULTRIX_PARTITION is not set +# CONFIG_SUN_PARTITION is not set +# CONFIG_KARMA_PARTITION is not set +CONFIG_EFI_PARTITION=y +# CONFIG_SYSV68_PARTITION is not set +CONFIG_NLS=y +CONFIG_NLS_DEFAULT="utf8" +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_CODEPAGE_737=m +CONFIG_NLS_CODEPAGE_775=m +CONFIG_NLS_CODEPAGE_850=m +CONFIG_NLS_CODEPAGE_852=m +CONFIG_NLS_CODEPAGE_855=m +CONFIG_NLS_CODEPAGE_857=m +CONFIG_NLS_CODEPAGE_860=m +CONFIG_NLS_CODEPAGE_861=m +CONFIG_NLS_CODEPAGE_862=m +CONFIG_NLS_CODEPAGE_863=m +CONFIG_NLS_CODEPAGE_864=m +CONFIG_NLS_CODEPAGE_865=m +CONFIG_NLS_CODEPAGE_866=m +CONFIG_NLS_CODEPAGE_869=m +CONFIG_NLS_CODEPAGE_936=m +CONFIG_NLS_CODEPAGE_950=m +CONFIG_NLS_CODEPAGE_932=m +CONFIG_NLS_CODEPAGE_949=m +CONFIG_NLS_CODEPAGE_874=m +CONFIG_NLS_ISO8859_8=m +CONFIG_NLS_CODEPAGE_1250=m +CONFIG_NLS_CODEPAGE_1251=m +CONFIG_NLS_ASCII=y +CONFIG_NLS_ISO8859_1=m +CONFIG_NLS_ISO8859_2=m +CONFIG_NLS_ISO8859_3=m +CONFIG_NLS_ISO8859_4=m +CONFIG_NLS_ISO8859_5=m +CONFIG_NLS_ISO8859_6=m +CONFIG_NLS_ISO8859_7=m +CONFIG_NLS_ISO8859_9=m +CONFIG_NLS_ISO8859_13=m +CONFIG_NLS_ISO8859_14=m +CONFIG_NLS_ISO8859_15=m +CONFIG_NLS_KOI8_R=m +CONFIG_NLS_KOI8_U=m +CONFIG_NLS_UTF8=m +# CONFIG_DLM is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4 +CONFIG_ENABLE_WARN_DEPRECATED=y +CONFIG_ENABLE_MUST_CHECK=y +CONFIG_FRAME_WARN=1024 +# CONFIG_MAGIC_SYSRQ is not set +# CONFIG_STRIP_ASM_SYMS is not set +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +# CONFIG_DEBUG_SECTION_MISMATCH is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +# CONFIG_LOCKUP_DETECTOR is not set +# CONFIG_HARDLOCKUP_DETECTOR is not set +# CONFIG_DETECT_HUNG_TASK is not set +# CONFIG_SCHED_DEBUG is not set +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_OBJECTS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_KMEMLEAK is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_LOCK_ALLOC is not set +# CONFIG_PROVE_LOCKING is not set +# CONFIG_SPARSE_RCU_POINTER is not set +# CONFIG_LOCK_STAT is not set +# CONFIG_DEBUG_ATOMIC_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_STACK_USAGE is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_BUGVERBOSE is not set +# CONFIG_DEBUG_INFO is not set +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_WRITECOUNT is not set +# CONFIG_DEBUG_MEMORY_INIT is not set +# CONFIG_DEBUG_LIST is not set +# CONFIG_TEST_LIST_SORT is not set +# CONFIG_DEBUG_SG is not set +# CONFIG_DEBUG_NOTIFIERS is not set +# CONFIG_DEBUG_CREDENTIALS is not set +CONFIG_FRAME_POINTER=y +# CONFIG_BOOT_PRINTK_DELAY is not set +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_BACKTRACE_SELF_TEST is not set +# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set +# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set +# CONFIG_FAULT_INJECTION is not set +# CONFIG_LATENCYTOP is not set +# CONFIG_SYSCTL_SYSCALL_CHECK is not set +# CONFIG_DEBUG_PAGEALLOC is not set +CONFIG_HAVE_FUNCTION_TRACER=y +CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y +CONFIG_HAVE_C_RECORDMCOUNT=y +CONFIG_TRACING_SUPPORT=y +# CONFIG_FTRACE is not set +# CONFIG_DMA_API_DEBUG is not set +# CONFIG_ATOMIC64_SELFTEST is not set +# CONFIG_SAMPLES is not set +CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_KGDB is not set +# CONFIG_TEST_KSTRTOX is not set +# CONFIG_STRICT_DEVMEM is not set +# CONFIG_ARM_UNWIND is not set +# CONFIG_DEBUG_USER is not set +# CONFIG_DEBUG_LL is not set +# CONFIG_OC_ETM is not set + +# +# Security options +# +CONFIG_KEYS=y +# CONFIG_KEYS_DEBUG_PROC_KEYS is not set +# CONFIG_SECURITY_DMESG_RESTRICT is not set +# CONFIG_SECURITY is not set +# CONFIG_SECURITYFS is not set +CONFIG_DEFAULT_SECURITY_DAC=y +CONFIG_DEFAULT_SECURITY="" +CONFIG_CRYPTO=y + +# +# Crypto core or helper +# +CONFIG_CRYPTO_ALGAPI=y +CONFIG_CRYPTO_ALGAPI2=y +CONFIG_CRYPTO_AEAD=m +CONFIG_CRYPTO_AEAD2=y +CONFIG_CRYPTO_BLKCIPHER=y +CONFIG_CRYPTO_BLKCIPHER2=y +CONFIG_CRYPTO_HASH=y +CONFIG_CRYPTO_HASH2=y +CONFIG_CRYPTO_RNG=m +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_PCOMP2=y +CONFIG_CRYPTO_MANAGER=y +CONFIG_CRYPTO_MANAGER2=y +CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y +# CONFIG_CRYPTO_GF128MUL is not set +# CONFIG_CRYPTO_NULL is not set +CONFIG_CRYPTO_WORKQUEUE=y +# CONFIG_CRYPTO_CRYPTD is not set +CONFIG_CRYPTO_AUTHENC=m +# CONFIG_CRYPTO_TEST is not set + +# +# Authenticated Encryption with Associated Data +# +# CONFIG_CRYPTO_CCM is not set +# CONFIG_CRYPTO_GCM is not set +CONFIG_CRYPTO_SEQIV=m + +# +# Block modes +# +CONFIG_CRYPTO_CBC=y +# CONFIG_CRYPTO_CTR is not set +# CONFIG_CRYPTO_CTS is not set +CONFIG_CRYPTO_ECB=m +# CONFIG_CRYPTO_LRW is not set +# CONFIG_CRYPTO_PCBC is not set +# CONFIG_CRYPTO_XTS is not set + +# +# Hash modes +# +CONFIG_CRYPTO_HMAC=y +CONFIG_CRYPTO_XCBC=m +# CONFIG_CRYPTO_VMAC is not set + +# +# Digest +# +CONFIG_CRYPTO_CRC32C=y +# CONFIG_CRYPTO_GHASH is not set +CONFIG_CRYPTO_MD4=m +CONFIG_CRYPTO_MD5=y +CONFIG_CRYPTO_MICHAEL_MIC=m +# CONFIG_CRYPTO_RMD128 is not set +# CONFIG_CRYPTO_RMD160 is not set +# CONFIG_CRYPTO_RMD256 is not set +# CONFIG_CRYPTO_RMD320 is not set +CONFIG_CRYPTO_SHA1=y +CONFIG_CRYPTO_SHA256=m +CONFIG_CRYPTO_SHA512=m +CONFIG_CRYPTO_TGR192=m +CONFIG_CRYPTO_WP512=m + +# +# Ciphers +# +# CONFIG_CRYPTO_AES is not set +# CONFIG_CRYPTO_ANUBIS is not set +CONFIG_CRYPTO_ARC4=m +# CONFIG_CRYPTO_BLOWFISH is not set +# CONFIG_CRYPTO_CAMELLIA is not set +CONFIG_CRYPTO_CAST5=m +# CONFIG_CRYPTO_CAST6 is not set +CONFIG_CRYPTO_DES=y +# CONFIG_CRYPTO_FCRYPT is not set +# CONFIG_CRYPTO_KHAZAD is not set +# CONFIG_CRYPTO_SALSA20 is not set +# CONFIG_CRYPTO_SEED is not set +# CONFIG_CRYPTO_SERPENT is not set +# CONFIG_CRYPTO_TEA is not set +# CONFIG_CRYPTO_TWOFISH is not set + +# +# Compression +# +CONFIG_CRYPTO_DEFLATE=m +# CONFIG_CRYPTO_ZLIB is not set +# CONFIG_CRYPTO_LZO is not set + +# +# Random Number Generation +# +# CONFIG_CRYPTO_ANSI_CPRNG is not set +# CONFIG_CRYPTO_USER_API_HASH is not set +# CONFIG_CRYPTO_USER_API_SKCIPHER is not set +# CONFIG_CRYPTO_HW is not set +# CONFIG_BINARY_PRINTF is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +CONFIG_CRC_CCITT=m +CONFIG_CRC16=y +# CONFIG_CRC_T10DIF is not set +CONFIG_CRC_ITU_T=y +CONFIG_CRC32=y +# CONFIG_CRC7 is not set +CONFIG_LIBCRC32C=y +# CONFIG_CRC8 is not set +CONFIG_ZLIB_INFLATE=m +CONFIG_ZLIB_DEFLATE=m +# CONFIG_XZ_DEC is not set +# CONFIG_XZ_DEC_BCJ is not set +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y +CONFIG_HAS_DMA=y +CONFIG_NLATTR=y +CONFIG_GENERIC_ATOMIC64=y +# CONFIG_AVERAGE is not set +# CONFIG_CORDIC is not set --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -46,6 +46,8 @@ extern void __aeabi_lmul(void); extern void __aeabi_uidiv(void); extern void __aeabi_uidivmod(void); extern void __aeabi_ulcmp(void); +extern void __aeabi_ldivmod(void); +extern void __aeabi_uldivmod(void); extern void fpundefinstr(void); @@ -131,6 +133,8 @@ EXPORT_SYMBOL(__aeabi_lmul); EXPORT_SYMBOL(__aeabi_uidiv); EXPORT_SYMBOL(__aeabi_uidivmod); EXPORT_SYMBOL(__aeabi_ulcmp); +EXPORT_SYMBOL(__aeabi_ldivmod); +EXPORT_SYMBOL(__aeabi_uldivmod); #endif /* bitops */ --- /dev/null +++ b/arch/arm/lib/divdi3.c @@ -0,0 +1,338 @@ +/* 64-bit multiplication and division + Copyright (C) 1989, 1992-1999, 2000, 2001, 2002, 2003 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "longlong.h" + +#define W_TYPE_SIZE (sizeof(long)) + +#ifdef __ARMEB__ +struct DWstruct { long high, low;}; +#else +struct DWstruct { long low, high;}; +#endif + +typedef union { struct DWstruct s; long long ll; } DWunion; + +/* Prototypes of exported functions. */ +long long __divdi3 (long long u, long long v); +long long __moddi3 (long long u, long long v); +unsigned long long __udivdi3 (unsigned long long u, unsigned long long v); +unsigned long long __umoddi3 (unsigned long long u, unsigned long long v); + +static unsigned long long +__udivmoddi4 (unsigned long long n, unsigned long long d, unsigned long long *rp) +{ + DWunion ww; + DWunion nn, dd; + DWunion rr; + unsigned long d0, d1, n0, n1, n2; + unsigned long q0, q1; + unsigned long b, bm; + + nn.ll = n; + dd.ll = d; + + d0 = dd.s.low; + d1 = dd.s.high; + n0 = nn.s.low; + n1 = nn.s.high; + +#if !UDIV_NEEDS_NORMALIZATION + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + udiv_qrnnd (q1, n1, 0, n1, d0); + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0. */ + } + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = 0; + *rp = rr.ll; + } + } + +#else /* UDIV_NEEDS_NORMALIZATION */ + + if (d1 == 0) + { + if (d0 > n1) + { + /* 0q = nn / 0D */ + + count_leading_zeros (bm, d0); + + if (bm != 0) + { + /* Normalize, i.e. make the most significant bit of the + denominator set. */ + + d0 = d0 << bm; + n1 = (n1 << bm) | (n0 >> (W_TYPE_SIZE - bm)); + n0 = n0 << bm; + } + + udiv_qrnnd (q0, n0, n1, n0, d0); + q1 = 0; + + /* Remainder in n0 >> bm. */ + } + else + { + /* qq = NN / 0d */ + + if (d0 == 0) + d0 = 1 / d0; /* Divide intentionally by zero. */ + + count_leading_zeros (bm, d0); + + if (bm == 0) + { + /* From (n1 >= d0) /\ (the most significant bit of d0 is set), + conclude (the most significant bit of n1 is set) /\ (the + leading quotient digit q1 = 1). + + This special case is necessary, not an optimization. + (Shifts counts of W_TYPE_SIZE are undefined.) */ + + n1 -= d0; + q1 = 1; + } + else + { + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q1, n1, n2, n1, d0); + } + + /* n1 != d0... */ + + udiv_qrnnd (q0, n0, n1, n0, d0); + + /* Remainder in n0 >> bm. */ + } + + if (rp != 0) + { + rr.s.low = n0 >> bm; + rr.s.high = 0; + *rp = rr.ll; + } + } +#endif /* UDIV_NEEDS_NORMALIZATION */ + + else + { + if (d1 > n1) + { + /* 00 = nn / DD */ + + q0 = 0; + q1 = 0; + + /* Remainder in n1n0. */ + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + /* 0q = NN / dd */ + + count_leading_zeros (bm, d1); + if (bm == 0) + { + /* From (n1 >= d1) /\ (the most significant bit of d1 is set), + conclude (the most significant bit of n1 is set) /\ (the + quotient digit q0 = 0 or 1). + + This special case is necessary, not an optimization. */ + + /* The condition on the next line takes advantage of that + n1 >= d1 (true due to program flow). */ + if (n1 > d1 || n0 >= d0) + { + q0 = 1; + sub_ddmmss (n1, n0, n1, n0, d1, d0); + } + else + q0 = 0; + + q1 = 0; + + if (rp != 0) + { + rr.s.low = n0; + rr.s.high = n1; + *rp = rr.ll; + } + } + else + { + unsigned long m1, m0; + /* Normalize. */ + + b = W_TYPE_SIZE - bm; + + d1 = (d1 << bm) | (d0 >> b); + d0 = d0 << bm; + n2 = n1 >> b; + n1 = (n1 << bm) | (n0 >> b); + n0 = n0 << bm; + + udiv_qrnnd (q0, n1, n2, n1, d1); + umul_ppmm (m1, m0, q0, d0); + + if (m1 > n1 || (m1 == n1 && m0 > n0)) + { + q0--; + sub_ddmmss (m1, m0, m1, m0, d1, d0); + } + + q1 = 0; + + /* Remainder in (n1n0 - m1m0) >> bm. */ + if (rp != 0) + { + sub_ddmmss (n1, n0, n1, n0, m1, m0); + rr.s.low = (n1 << b) | (n0 >> bm); + rr.s.high = n1 >> bm; + *rp = rr.ll; + } + } + } + } + + ww.s.low = q0; + ww.s.high = q1; + return ww.ll; +} + +long long +__divdi3 (long long u, long long v) +{ + long c = 0; + long long w; + + if (u < 0) + { + c = ~c; + u = -u; + } + if (v < 0) + { + c = ~c; + v = -v; + } + w = __udivmoddi4 (u, v, 0); + if (c) + w = -w; + return w; +} + +long long +__moddi3 (long long u, long long v) +{ + long c = 0; + long long w; + + if (u < 0) + { + c = ~c; + u = -u; + } + if (v < 0) + v = -v; + __udivmoddi4 (u, v, &w); + if (c) + w = -w; + return w; +} + +unsigned long long +__udivdi3 (unsigned long long u, unsigned long long v) +{ + return __udivmoddi4 (u, v, 0); +} + +unsigned long long +__umoddi3 (unsigned long long u, unsigned long long v) +{ + unsigned long long w; + + __udivmoddi4 (u, v, &w); + return w; +} + +long long +__gnu_ldivmod_helper (long long a, + + long long b, + long long *remainder) +{ + long long quotient; + + quotient = __divdi3 (a, b); + *remainder = a - b * quotient; + + return quotient; +} + +unsigned long long + +__gnu_uldivmod_helper (unsigned long long a, + + unsigned long long b, + unsigned long long *remainder) +{ + unsigned long long quotient; + + quotient = __udivdi3 (a, b); + *remainder = a - b * quotient; + return quotient; +} --- a/arch/arm/lib/lib1funcs.S +++ b/arch/arm/lib/lib1funcs.S @@ -349,6 +349,33 @@ UNWIND(.save {r0, r1, ip, lr} ) UNWIND(.fnend) ENDPROC(__aeabi_idivmod) +/* Added 64x64 bit division for use with OTG USB driver - multi-precision + * arithmetic for RSA encyrption. + */ +ENTRY(__aeabi_ldivmod) + + sub sp, sp, #8 + stmfd sp!, {sp, lr} + bl __gnu_ldivmod_helper + ldr lr, [sp, #4] + add sp, sp, #8 + ldmfd sp!, {r2, r3} + mov pc, lr + +ENDPROC(__aeabi_ldivmod) + +ENTRY(__aeabi_uldivmod) + + sub sp, sp, #8 + stmfd sp!, {sp, lr} + bl __gnu_uldivmod_helper + ldr lr, [sp, #4] + add sp, sp, #8 + ldmfd sp!, {r2, r3} + mov pc, lr + +ENDPROC(__aeabi_uldivmod) + #endif Ldiv0: --- /dev/null +++ b/arch/arm/lib/longlong.h @@ -0,0 +1,151 @@ +/* longlong.h -- based on code from gcc-2.95.3 + + definitions for mixed size 32/64 bit arithmetic. + Copyright (C) 1991, 92, 94, 95, 96, 1997, 1998 Free Software Foundation, Inc. + + This definition file 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, or (at your option) any later version. + + This definition file 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. */ + +/* Borrowed from GCC 2.95.3, I Molton 29/07/01 */ + +#define USItype unsigned long +#define SI_TYPE_SIZE sizeof(USItype) + +#define __BITS4 (SI_TYPE_SIZE / 4) +#define __ll_B (1L << (SI_TYPE_SIZE / 2)) +#define __ll_lowpart(t) ((USItype) (t) % __ll_B) +#define __ll_highpart(t) ((USItype) (t) / __ll_B) + +/* Define auxiliary asm macros. + + 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) + multiplies two USItype integers MULTIPLER and MULTIPLICAND, + and generates a two-part USItype product in HIGH_PROD and + LOW_PROD. + + 2) __umulsidi3(a,b) multiplies two USItype integers A and B, + and returns a UDItype product. This is just a variant of umul_ppmm. + + 3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator, + denominator) divides a two-word unsigned integer, composed by the + integers HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and + places the quotient in QUOTIENT and the remainder in REMAINDER. + HIGH_NUMERATOR must be less than DENOMINATOR for correct operation. + If, in addition, the most significant bit of DENOMINATOR must be 1, + then the pre-processor symbol UDIV_NEEDS_NORMALIZATION is defined to 1. + + 4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator, + denominator). Like udiv_qrnnd but the numbers are signed. The + quotient is rounded towards 0. + + 5) count_leading_zeros(count, x) counts the number of zero-bits from + the msb to the first non-zero bit. This is the number of steps X + needs to be shifted left to set the msb. Undefined for X == 0. + + 6) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1, + high_addend_2, low_addend_2) adds two two-word unsigned integers, + composed by HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and + LOW_ADDEND_2 respectively. The result is placed in HIGH_SUM and + LOW_SUM. Overflow (i.e. carry out) is not stored anywhere, and is + lost. + + 7) sub_ddmmss(high_difference, low_difference, high_minuend, + low_minuend, high_subtrahend, low_subtrahend) subtracts two + two-word unsigned integers, composed by HIGH_MINUEND_1 and + LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and LOW_SUBTRAHEND_2 + respectively. The result is placed in HIGH_DIFFERENCE and + LOW_DIFFERENCE. Overflow (i.e. carry out) is not stored anywhere, + and is lost. + + If any of these macros are left undefined for a particular CPU, + C macros are used. */ + +#if defined (__arm__) +#define add_ssaaaa(sh, sl, ah, al, bh, bl) \ + __asm__ ("adds %1, %4, %5 \n\ + adc %0, %2, %3" \ + : "=r" ((USItype) (sh)), \ + "=&r" ((USItype) (sl)) \ + : "%r" ((USItype) (ah)), \ + "rI" ((USItype) (bh)), \ + "%r" ((USItype) (al)), \ + "rI" ((USItype) (bl))) +#define sub_ddmmss(sh, sl, ah, al, bh, bl) \ + __asm__ ("subs %1, %4, %5 \n\ + sbc %0, %2, %3" \ + : "=r" ((USItype) (sh)), \ + "=&r" ((USItype) (sl)) \ + : "r" ((USItype) (ah)), \ + "rI" ((USItype) (bh)), \ + "r" ((USItype) (al)), \ + "rI" ((USItype) (bl))) +#define umul_ppmm(xh, xl, a, b) \ + __asm__ ("%@ Inlined umul_ppmm\n" \ + "umull %r1, %r0, %r2, %r3" \ + : "=&r" ((USItype)(xh)), \ + "=r" ((USItype)(xl)) \ + : "r" ((USItype)(a)), \ + "r" ((USItype)(b)) \ + : "r0", "r1") +#define count_leading_zeros(count, x) \ + __asm__ ("clz %0, %1" : "=r"(count) : "r"(x)) +#define UMUL_TIME 20 +#define UDIV_TIME 100 +#endif /* __arm__ */ + +#define __umulsidi3(u, v) \ + ({DIunion __w; \ + umul_ppmm (__w.s.high, __w.s.low, u, v); \ + __w.ll; }) + +#define __udiv_qrnnd_c(q, r, n1, n0, d) \ + do { \ + USItype __d1, __d0, __q1, __q0; \ + USItype __r1, __r0, __m; \ + __d1 = __ll_highpart (d); \ + __d0 = __ll_lowpart (d); \ + \ + __r1 = (n1) % __d1; \ + __q1 = (n1) / __d1; \ + __m = (USItype) __q1 * __d0; \ + __r1 = __r1 * __ll_B | __ll_highpart (n0); \ + if (__r1 < __m) \ + { \ + __q1--, __r1 += (d); \ + if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\ + if (__r1 < __m) \ + __q1--, __r1 += (d); \ + } \ + __r1 -= __m; \ + \ + __r0 = __r1 % __d1; \ + __q0 = __r1 / __d1; \ + __m = (USItype) __q0 * __d0; \ + __r0 = __r0 * __ll_B | __ll_lowpart (n0); \ + if (__r0 < __m) \ + { \ + __q0--, __r0 += (d); \ + if (__r0 >= (d)) \ + if (__r0 < __m) \ + __q0--, __r0 += (d); \ + } \ + __r0 -= __m; \ + \ + (q) = (USItype) __q1 * __ll_B | __q0; \ + (r) = __r0; \ + } while (0) + +#define UDIV_NEEDS_NORMALIZATION 1 +#define udiv_qrnnd __udiv_qrnnd_c --- /dev/null +++ b/arch/arm/mach-bcm2708/Kconfig @@ -0,0 +1,25 @@ +menu "Broadcom BCM2708 Implementations" + depends on ARCH_BCM2708 + +config MACH_BCM2708 + bool "Broadcom BCM2708 Development Platform" + select CPU_V6 + help + Include support for the Broadcom(R) BCM2708 platform. + +config BCM2708_GPIO + bool "BCM2708 gpio support" + depends on MACH_BCM2708 + select ARCH_REQUIRE_GPIOLIB + default y + help + Include support for the Broadcom(R) BCM2708 gpio. + +config BCM2708_VCMEM + bool "Videocore Memory" + depends on MACH_BCM2708 + default y + help + Helper for videocore memory access and total size allocation. + +endmenu --- /dev/null +++ b/arch/arm/mach-bcm2708/Makefile @@ -0,0 +1,8 @@ +# +# Makefile for the linux kernel. +# + +obj-$(CONFIG_MACH_BCM2708) += clock.o bcm2708.o armctrl.o vcio.o power.o dma.o +obj-$(CONFIG_BCM2708_GPIO) += bcm2708_gpio.o +obj-$(CONFIG_BCM2708_VCMEM) += vc_mem.o + --- /dev/null +++ b/arch/arm/mach-bcm2708/Makefile.boot @@ -0,0 +1,3 @@ + zreladdr-y := 0x00008000 +params_phys-y := 0x00000100 +initrd_phys-y := 0x00800000 --- /dev/null +++ b/arch/arm/mach-bcm2708/armctrl.c @@ -0,0 +1,399 @@ +/* + * linux/arch/arm/mach-bcm2708/armctrl.c + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#include +#include +#include +#include +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,39) +#include +#else +#include +#endif +#include + +#include +#include +#include "armctrl.h" + +/* For support of kernels >= 3.0 assume only one VIC for now*/ +static unsigned int remap_irqs[(INTERRUPT_ARASANSDIO + 1) - INTERRUPT_JPEG] = { + INTERRUPT_VC_JPEG, + INTERRUPT_VC_USB, + INTERRUPT_VC_3D, + INTERRUPT_VC_DMA2, + INTERRUPT_VC_DMA3, + INTERRUPT_VC_I2C, + INTERRUPT_VC_SPI, + INTERRUPT_VC_I2SPCM, + INTERRUPT_VC_SDIO, + INTERRUPT_VC_UART, + INTERRUPT_VC_ARASANSDIO +}; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) +static void armctrl_mask_irq(struct irq_data *d) +#else +static void armctrl_mask_irq(unsigned int irq) +#endif +{ + static const unsigned int disables[4] = { + IO_ADDRESS(ARM_IRQ_DIBL1), + IO_ADDRESS(ARM_IRQ_DIBL2), + IO_ADDRESS(ARM_IRQ_DIBL3), + 0 + }; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + unsigned int data = (unsigned int)irq_get_chip_data(d->irq); +#else + unsigned int data = (unsigned int)get_irq_chip_data(irq); +#endif + writel(1 << (data & 0x1f), __io(disables[(data >> 5) & 0x3])); +} + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) +static void armctrl_unmask_irq(struct irq_data *d) +#else +static void armctrl_unmask_irq(unsigned int irq) +#endif +{ + static const unsigned int enables[4] = { + IO_ADDRESS(ARM_IRQ_ENBL1), + IO_ADDRESS(ARM_IRQ_ENBL2), + IO_ADDRESS(ARM_IRQ_ENBL3), + 0 + }; +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + unsigned int data = (unsigned int)irq_get_chip_data(d->irq); +#else + unsigned int data = (unsigned int)get_irq_chip_data(irq); +#endif + writel(1 << (data & 0x1f), __io(enables[(data >> 5) & 0x3])); +} + +#if defined(CONFIG_PM) + +/* for kernels 3.xx use the new syscore_ops apis but for older kernels use the sys dev class */ + +/* Static defines + * struct armctrl_device - VIC PM device (< 3.xx) + * @sysdev: The system device which is registered. (< 3.xx) + * @irq: The IRQ number for the base of the VIC. + * @base: The register base for the VIC. + * @resume_sources: A bitmask of interrupts for resume. + * @resume_irqs: The IRQs enabled for resume. + * @int_select: Save for VIC_INT_SELECT. + * @int_enable: Save for VIC_INT_ENABLE. + * @soft_int: Save for VIC_INT_SOFT. + * @protect: Save for VIC_PROTECT. + */ +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) +struct armctrl_device { + struct sys_device sysdev; +#else + struct armctrl_info { +#endif + void __iomem *base; + int irq; + u32 resume_sources; + u32 resume_irqs; + u32 int_select; + u32 int_enable; + u32 soft_int; + u32 protect; +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) +}; +#else + } armctrl; +#endif + +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) + +static struct armctrl_device armctrl_devices[1]; + +static inline struct armctrl_device *to_vic(struct sys_device *sys) +{ + return container_of(sys, struct armctrl_device, sysdev); +} + +static int armctrl_id; + +static int armctrl_class_resume(struct sys_device *dev) +{ +#if 0 // FIXME + struct armctrl_device *armctrl = to_vic(dev); + void __iomem *base = armctrl->base; + + printk(KERN_DEBUG "%s: resuming armctrl at %p\n", __func__, base); + + writel(armctrl->int_select, base + VIC_INT_SELECT); + writel(armctrl->protect, base + VIC_PROTECT); + + /* set the enabled ints and then clear the non-enabled */ + writel(armctrl->int_enable, base + VIC_INT_ENABLE); + writel(~armctrl->int_enable, base + VIC_INT_ENABLE_CLEAR); + + /* and the same for the soft-int register */ + + writel(armctrl->soft_int, base + VIC_INT_SOFT); + writel(~armctrl->soft_int, base + VIC_INT_SOFT_CLEAR); +#endif + return 0; +} + +static int armctrl_class_suspend(struct sys_device *dev, pm_message_t state) +{ +#if 0 // FIXME + struct armctrl_device *armctrl = to_vic(dev); + void __iomem *base = armctrl->base; + + printk(KERN_DEBUG "%s: suspending armctrl at %p\n", __func__, base); + + armctrl->int_select = readl(base + VIC_INT_SELECT); + armctrl->int_enable = readl(base + VIC_INT_ENABLE); + armctrl->soft_int = readl(base + VIC_INT_SOFT); + armctrl->protect = readl(base + VIC_PROTECT); + + /* set the interrupts (if any) that are used for + * resuming the system */ + + writel(armctrl->resume_irqs, base + VIC_INT_ENABLE); + writel(~armctrl->resume_irqs, base + VIC_INT_ENABLE_CLEAR); +#endif + return 0; +} + +struct sysdev_class armctrl_class = { + .name = "armctrl", + .suspend = armctrl_class_suspend, + .resume = armctrl_class_resume, +}; + +#endif // < 2.6.39 + +static int armctrl_suspend(void) +{ + return 0; +} + +static void armctrl_resume(void) +{ + return; +} + + +/** + * armctrl_pm_register - Register a VIC for later power management control + * @base: The base address of the VIC. + * @irq: The base IRQ for the VIC. + * @resume_sources: bitmask of interrupts allowed for resume sources. + * + * For older kernels (< 3.xx) do - + * Register the VIC with the system device tree so that it can be notified + * of suspend and resume requests and ensure that the correct actions are + * taken to re-instate the settings on resume. + */ +static void __init armctrl_pm_register(void __iomem * base, unsigned int irq, + u32 resume_sources) +{ +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) + struct armctrl_device *v; + + if (armctrl_id >= ARRAY_SIZE(armctrl_devices)) + printk(KERN_ERR + "%s: too few VICs, increase CONFIG_ARM_VIC_NR\n", + __func__); + else { + v = &armctrl_devices[armctrl_id]; + v->base = base; + v->resume_sources = resume_sources; + v->irq = irq; + armctrl_id++; + } +#else + armctrl.base = base; + armctrl.resume_sources = resume_sources; + armctrl.irq = irq; +#endif +} + +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) + +/** + * armctrl_pm_init - initicall to register VIC pm + * + * This is called via late_initcall() to register + * the resources for the VICs due to the early + * nature of the VIC's registration. +*/ +static int __init armctrl_pm_init(void) +{ + struct armctrl_device *dev = armctrl_devices; + int err; + int id; + + if (armctrl_id == 0) + return 0; + + err = sysdev_class_register(&armctrl_class); + if (err) { + printk(KERN_ERR "%s: cannot register class\n", __func__); + return err; + } + + for (id = 0; id < armctrl_id; id++, dev++) { + dev->sysdev.id = id; + dev->sysdev.cls = &armctrl_class; + + err = sysdev_register(&dev->sysdev); + if (err) { + printk(KERN_ERR "%s: failed to register device\n", + __func__); + return err; + } + } + + return 0; +} + +late_initcall(armctrl_pm_init); + +#endif // VERSION check + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) +static int armctrl_set_wake(struct irq_data *d, unsigned int on) +#else +static int armctrl_set_wake(unsigned int irq, unsigned int on) +#endif +{ +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) + struct armctrl_device *armctrl = &armctrl_devices[0]; +#endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + unsigned int off = d->irq & 31; +#else + unsigned int off = irq & 31; +#endif + u32 bit = 1 << off; + +#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,39) + if (!armctrl) + return -EINVAL; + + if (!(bit & armctrl->resume_sources)) + return -EINVAL; + + if (on) + armctrl->resume_irqs |= bit; + else + armctrl->resume_irqs &= ~bit; +#else + if (!(bit & armctrl.resume_sources)) + return -EINVAL; + + if (on) + armctrl.resume_irqs |= bit; + else + armctrl.resume_irqs &= ~bit; +#endif + + return 0; +} + +#else +static inline void armctrl_pm_register(void __iomem *base, unsigned int irq, + u32 arg1) +{ +} +#define armctrl_suspend NULL +#define armctrl_resume NULL +#define armctrl_set_wake NULL +#endif /* CONFIG_PM */ + +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,39) + +static struct syscore_ops armctrl_syscore_ops = { + .suspend = armctrl_suspend, + .resume = armctrl_resume, +}; + +/** + * armctrl_syscore_init - initicall to register VIC pm functions + * + * This is called via late_initcall() to register + * the resources for the VICs due to the early + * nature of the VIC's registration. +*/ +static int __init armctrl_syscore_init(void) +{ + register_syscore_ops(&armctrl_syscore_ops); + return 0; +} + +late_initcall(armctrl_syscore_init); + +#endif + +static struct irq_chip armctrl_chip = { + .name = "ARMCTRL", +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + .irq_ack = armctrl_mask_irq, + .irq_mask = armctrl_mask_irq, + .irq_unmask = armctrl_unmask_irq, + .irq_set_wake = armctrl_set_wake, +#else + .ack = armctrl_mask_irq, + .mask = armctrl_mask_irq, + .unmask = armctrl_unmask_irq, + .set_wake = armctrl_set_wake, +#endif +}; + +/** + * armctrl_init - initialise a vectored interrupt controller + * @base: iomem base address + * @irq_start: starting interrupt number, must be muliple of 32 + * @armctrl_sources: bitmask of interrupt sources to allow + * @resume_sources: bitmask of interrupt sources to allow for resume + */ +int __init armctrl_init(void __iomem * base, unsigned int irq_start, + u32 armctrl_sources, u32 resume_sources) +{ + unsigned int irq; + + for (irq = 0; irq < NR_IRQS; irq++) { + unsigned int data = irq; + if (irq >= INTERRUPT_JPEG) + data = remap_irqs[irq - INTERRUPT_JPEG]; + +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) + irq_set_chip(irq, &armctrl_chip); + irq_set_chip_data(irq, (void *)data); + irq_set_handler(irq, handle_level_irq); +#else + set_irq_chip(irq, &armctrl_chip); + set_irq_chip_data(irq, (void *)data); + set_irq_handler(irq, handle_level_irq); +#endif + set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_DISABLED); + } + + armctrl_pm_register(base, irq_start, resume_sources); + return 0; +} --- /dev/null +++ b/arch/arm/mach-bcm2708/armctrl.h @@ -0,0 +1,27 @@ +/* + * linux/arch/arm/mach-bcm2708/armctrl.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef __BCM2708_ARMCTRL_H +#define __BCM2708_ARMCTRL_H + +extern int __init armctrl_init(void __iomem * base, unsigned int irq_start, + u32 armctrl_sources, u32 resume_sources); + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/bcm2708.c @@ -0,0 +1,657 @@ +/* + * linux/arch/arm/mach-bcm2708/bcm2708.c + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38) +#include +#else +#include +#endif +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "bcm2708.h" +#include "armctrl.h" +#include "clock.h" + +/* Effectively we have an IOMMU (ARM<->VideoCore map) that is set up to + * give us IO access only to 64Mbytes of physical memory (26 bits). We could + * represent this window by setting our dmamasks to 26 bits but, in fact + * we're not going to use addresses outside this range (they're not in real + * memory) so we don't bother. + * + * In the future we might include code to use this IOMMU to remap other + * physical addresses onto VideoCore memory then the use of 32-bits would be + * more legitimate. + */ +#define DMA_MASK_BITS_COMMON 32 + +static void __init bcm2708_init_led(void); + +void __init bcm2708_init_irq(void) +{ + armctrl_init(__io_address(ARMCTRL_IC_BASE), 0, 0, 0); +} + +static struct map_desc bcm2708_io_desc[] __initdata = { + { + .virtual = IO_ADDRESS(ARMCTRL_BASE), + .pfn = __phys_to_pfn(ARMCTRL_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(UART0_BASE), + .pfn = __phys_to_pfn(UART0_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(UART1_BASE), + .pfn = __phys_to_pfn(UART1_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { +#ifdef CONFIG_MMC_BCM2708 /* broadcom legacy SD */ + .virtual = IO_ADDRESS(MMCI0_BASE), + .pfn = __phys_to_pfn(MMCI0_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { +#endif + .virtual = IO_ADDRESS(DMA_BASE), + .pfn = __phys_to_pfn(DMA_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(MCORE_BASE), + .pfn = __phys_to_pfn(MCORE_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(ST_BASE), + .pfn = __phys_to_pfn(ST_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(USB_BASE), + .pfn = __phys_to_pfn(USB_BASE), + .length = SZ_128K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(PM_BASE), + .pfn = __phys_to_pfn(PM_BASE), + .length = SZ_4K, + .type = MT_DEVICE + }, { + .virtual = IO_ADDRESS(GPIO_BASE), + .pfn = __phys_to_pfn(GPIO_BASE), + .length = SZ_4K, + .type = MT_DEVICE + } +}; + +void __init bcm2708_map_io(void) +{ + iotable_init(bcm2708_io_desc, ARRAY_SIZE(bcm2708_io_desc)); +} + +unsigned long frc_clock_ticks32(void) +{ + /* STC: a free running counter that increments at the rate of 1MHz */ + return readl(__io_address(ST_BASE+0x04)); +} + +unsigned long long frc_clock_ticks63(void) +{ + unsigned long t = frc_clock_ticks32(); + /* For cnt32_to_63 to work correctly we MUST call this routine + * at least once every half-32-bit-wraparound period - that's once + * every 35minutes or so - using it in sched_clock() should ensure this + */ + return cnt32_to_63(t); +} + +unsigned long long sched_clock(void) +{ + return 1000ull * frc_clock_ticks63(); +} + +/* + * These are fixed clocks. + */ +static struct clk ref24_clk = { + .rate = 3000000, /* The UART is clocked at 3MHz via APB_CLK */ +}; +static struct clk osc_clk = { +#ifdef CONFIG_ARCH_BCM2708_CHIPIT + .rate = 27000000, +#else + .rate = 500000000, /* ARM clock is set from the VideoCore booter */ +#endif +}; +/* warning - the USB needs a clock > 34MHz */ + +#ifdef CONFIG_MMC_BCM2708 +static struct clk sdhost_clk = { +#ifdef CONFIG_ARCH_BCM2708_CHIPIT + .rate = 4000000, /* 4MHz */ +#else + .rate = 250000000, /* 250MHz */ +#endif +}; +#endif + +static struct clk_lookup lookups[] = { + { /* UART0 */ + .dev_id = "dev:f1", + .clk = &ref24_clk, + }, + { /* USB */ + .dev_id = "bcm2708_usb", + .clk = &osc_clk, +#ifdef CONFIG_MMC_BCM2708 + }, + { /* MCI */ + .dev_id = "bcm2708_mci.0", + .clk = &sdhost_clk, +#endif + } +}; + + +#define UART0_IRQ { IRQ_UART, NO_IRQ } +#define UART0_DMA { 15, 14 } + +AMBA_DEVICE(uart0, "dev:f1", UART0, NULL); + +static struct amba_device *amba_devs[] __initdata = { + &uart0_device, +}; + +static struct resource bcm2708_dmaman_resources[] = { + { + .start = DMA_BASE, + .end = DMA_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device bcm2708_dmaman_device = { + .name = BCM_DMAMAN_DRIVER_NAME, + .id = 0, /* first bcm2708_dma */ + .resource = bcm2708_dmaman_resources, + .num_resources = ARRAY_SIZE(bcm2708_dmaman_resources), +}; + +#ifdef CONFIG_MMC_BCM2708 +static struct resource bcm2708_mci_resources[] = { + { + .start = MMCI0_BASE, + .end = MMCI0_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_SDIO, + .end = IRQ_SDIO, + .flags = IORESOURCE_IRQ, + } +}; + + +static struct platform_device bcm2708_mci_device = { + .name = "bcm2708_mci", + .id = 0, /* first bcm2708_mci */ + .resource = bcm2708_mci_resources, + .num_resources = ARRAY_SIZE(bcm2708_mci_resources), + .dev = { + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; +#endif /* CONFIG_MMC_BCM2708 */ + + +static u64 fb_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_fb_device = { + .name = "bcm2708_fb", + .id = -1, /* only one bcm2708_fb */ + .resource = NULL, + .num_resources = 0, + .dev = { + .dma_mask = &fb_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; + +static struct plat_serial8250_port bcm2708_uart1_platform_data[] = { + { + .mapbase = UART1_BASE + 0x40, + .irq = IRQ_AUX, + .uartclk = 125000000, + .regshift = 2, + .iotype = UPIO_MEM, + .flags = UPF_FIXED_TYPE | UPF_IOREMAP | UPF_SKIP_TEST, + .type = PORT_8250, + }, + { }, +}; + +static struct platform_device bcm2708_uart1_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = bcm2708_uart1_platform_data, + }, +}; + +static struct resource bcm2708_usb_resources[] = { + [0] = { + .start = USB_BASE, + .end = USB_BASE + SZ_128K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_USB, + .end = IRQ_USB, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 usb_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_usb_device = { + .name = "bcm2708_usb", + .id = -1, /* only one bcm2708_usb */ + .resource = bcm2708_usb_resources, + .num_resources = ARRAY_SIZE(bcm2708_usb_resources), + .dev = { + .dma_mask = &usb_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; + +static struct resource bcm2708_vcio_resources[] = { + [0] = { /* mailbox/semaphore/doorbell access */ + .start = MCORE_BASE, + .end = MCORE_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static u64 vcio_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_vcio_device = { + .name = BCM_VCIO_DRIVER_NAME, + .id = -1, /* only one VideoCore I/O area */ + .resource = bcm2708_vcio_resources, + .num_resources = ARRAY_SIZE(bcm2708_vcio_resources), + .dev = { + .dma_mask = &vcio_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; + +#ifdef CONFIG_BCM2708_GPIO +#define BCM_GPIO_DRIVER_NAME "bcm2708_gpio" + +static struct resource bcm2708_gpio_resources[] = { + [0] = { /* general purpose I/O */ + .start = GPIO_BASE, + .end = GPIO_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static u64 gpio_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_gpio_device = { + .name = BCM_GPIO_DRIVER_NAME, + .id = -1, /* only one VideoCore I/O area */ + .resource = bcm2708_gpio_resources, + .num_resources = ARRAY_SIZE(bcm2708_gpio_resources), + .dev = { + .dma_mask = &gpio_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; +#endif + +#ifdef CONFIG_BCM2708_BUTTONS +static struct resource bcm2708_vcbuttons_resources[] = { +}; + +static u64 vcbuttons_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_vcbuttons_device = { + .name = "bcm2708_vcbuttons", + .id = -1, /* only one VideoCore I/O area */ + .resource = bcm2708_vcbuttons_resources, + .num_resources = ARRAY_SIZE(bcm2708_vcbuttons_resources), + .dev = { + .dma_mask = &vcbuttons_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; +#endif + +#ifdef CONFIG_BCM2708_TOUCHSCREEN +static struct resource bcm2708_vctouch_resources[] = { +}; + +static u64 vctouch_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_vctouch_device = { + .name = "bcm2708_vctouch", + .id = -1, /* only one VideoCore I/O area */ + .resource = bcm2708_vctouch_resources, + .num_resources = ARRAY_SIZE(bcm2708_vctouch_resources), + .dev = { + .dma_mask = &vctouch_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; +#endif + +static struct resource bcm2708_systemtimer_resources[] = { + [0] = { /* system timer access */ + .start = ST_BASE, + .end = ST_BASE + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_TIMER3, + .end = IRQ_TIMER3, + .flags = IORESOURCE_IRQ, + } + + +}; + +static u64 systemtimer_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +static struct platform_device bcm2708_systemtimer_device = { + .name = "bcm2708_systemtimer", + .id = -1, /* only one VideoCore I/O area */ + .resource = bcm2708_systemtimer_resources, + .num_resources = ARRAY_SIZE(bcm2708_systemtimer_resources), + .dev = { + .dma_mask = &systemtimer_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON), + }, +}; + +#ifdef CONFIG_MMC_SDHCI_BCM2708 /* Arasan emmc SD */ +static struct resource bcm2708_emmc_resources[] = { + [0] = { + .start = EMMC_BASE, + .end = EMMC_BASE + SZ_256 - 1, /* we only need this area */ + /* the memory map actually makes SZ_4K available */ + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_ARASANSDIO, + .end = IRQ_ARASANSDIO, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 bcm2708_emmc_dmamask = 0xffffffffUL; + +struct platform_device bcm2708_emmc_device = { + .name = "bcm2708_sdhci", + .id = 0, + .num_resources = ARRAY_SIZE(bcm2708_emmc_resources), + .resource = bcm2708_emmc_resources, + .dev = { + .dma_mask = &bcm2708_emmc_dmamask, + .coherent_dma_mask = 0xffffffffUL + }, +}; +#endif /* CONFIG_MMC_SDHCI_BCM2708 */ + +static struct resource bcm2708_powerman_resources[] = { + [0] = { + .start = PM_BASE, + .end = PM_BASE + SZ_256 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static u64 powerman_dmamask = DMA_BIT_MASK(DMA_MASK_BITS_COMMON); + +struct platform_device bcm2708_powerman_device = { + .name = "bcm2708_powerman", + .id = 0, + .num_resources = ARRAY_SIZE(bcm2708_powerman_resources), + .resource = bcm2708_powerman_resources, + .dev = { + .dma_mask = &powerman_dmamask, + .coherent_dma_mask = 0xffffffffUL + }, +}; + +int __init bcm_register_device(struct platform_device *pdev) +{ + int ret; + + ret = platform_device_register(pdev); + if (ret) + pr_debug("Unable to register platform device '%s': %d\n", + pdev->name, ret); + + return ret; +} + +void __init bcm2708_init(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(lookups); i++) + clkdev_add(&lookups[i]); + + bcm_register_device(&bcm2708_dmaman_device); + bcm_register_device(&bcm2708_vcio_device); +#ifdef CONFIG_BCM2708_GPIO + bcm_register_device(&bcm2708_gpio_device); +#endif + bcm_register_device(&bcm2708_systemtimer_device); +#ifdef CONFIG_MMC_BCM2708 + bcm_register_device(&bcm2708_mci_device); +#endif + bcm_register_device(&bcm2708_fb_device); + bcm_register_device(&bcm2708_usb_device); + bcm_register_device(&bcm2708_uart1_device); +#ifdef CONFIG_BCM2708_BUTTONS + bcm_register_device(&bcm2708_vcbuttons_device); +#endif +#ifdef CONFIG_BCM2708_TOUCHSCREEN + bcm_register_device(&bcm2708_vctouch_device); +#endif + bcm_register_device(&bcm2708_powerman_device); +#ifdef CONFIG_MMC_SDHCI_BCM2708 + bcm_register_device(&bcm2708_emmc_device); +#endif + bcm2708_init_led(); +#ifdef CONFIG_BCM2708_VCMEM +{ + extern void vc_mem_connected_init(void); + vc_mem_connected_init(); +} +#endif + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) { + struct amba_device *d = amba_devs[i]; + amba_device_register(d, &iomem_resource); + } +} + +#define TIMER_PERIOD 10000 /* HZ in microsecs */ + +static void timer_set_mode(enum clock_event_mode mode, + struct clock_event_device *clk) +{ + unsigned long stc; + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + stc = readl(__io_address(ST_BASE+0x04)); + writel(stc + TIMER_PERIOD, + __io_address(ST_BASE+0x18));/* stc3 */ + break; + case CLOCK_EVT_MODE_ONESHOT: + case CLOCK_EVT_MODE_UNUSED: + case CLOCK_EVT_MODE_SHUTDOWN: + default: + printk(KERN_ERR "timer_set_mode: unhandled mode:%d\n", + (int)mode); + break; + } + +} + +static int timer_set_next_event(unsigned long evt, + struct clock_event_device *unused) +{ + unsigned long stc; + + stc = readl(__io_address(ST_BASE + 0x04)); + writel(stc + TIMER_PERIOD, __io_address(ST_BASE+0x18)); /* stc3 */ + return 0; +} + +static struct clock_event_device timer0_clockevent = { + .name = "timer0", + .shift = 32, + .features = CLOCK_EVT_FEAT_ONESHOT, + .set_mode = timer_set_mode, + .set_next_event = timer_set_next_event, +}; + +/* + * IRQ handler for the timer + */ +static irqreturn_t bcm2708_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = &timer0_clockevent; + + writel(1<<3, __io_address(ST_BASE+0x00)); /* stcs clear timer int */ + + evt->event_handler(evt); + + return IRQ_HANDLED; +} + +static struct irqaction bcm2708_timer_irq = { + .name = "BCM2708 Timer Tick", + .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL, + .handler = bcm2708_timer_interrupt, +}; + +/* + * Set up timer interrupt, and return the current time in seconds. + */ +static void __init bcm2708_timer_init(void) +{ + /* + * Initialise to a known state (all timers off) + */ + writel(0, __io_address(ARM_T_CONTROL)); + /* + * Make irqs happen for the system timer + */ + setup_irq(IRQ_TIMER3, &bcm2708_timer_irq); + + timer0_clockevent.mult = + div_sc(1000000, NSEC_PER_SEC, timer0_clockevent.shift); + timer0_clockevent.max_delta_ns = + clockevent_delta2ns(0xffffffff, &timer0_clockevent); + timer0_clockevent.min_delta_ns = + clockevent_delta2ns(0xf, &timer0_clockevent); + + timer0_clockevent.cpumask = cpumask_of(0); + clockevents_register_device(&timer0_clockevent); +} + +struct sys_timer bcm2708_timer = { + .init = bcm2708_timer_init, +}; + +#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE) +#include + +static struct gpio_led bcm2708_leds[] = { + [0] = { + .gpio = 16, + .name = "led0", + .default_trigger = "mmc0", + .active_low = 0, + }, +}; + +static struct gpio_led_platform_data bcm2708_led_pdata = { + .num_leds = ARRAY_SIZE(bcm2708_leds), + .leds = bcm2708_leds, +}; + +static struct platform_device bcm2708_led_device = { + .name = "leds-gpio", + .id = -1, + .dev = { + .platform_data = &bcm2708_led_pdata, + }, +}; + +static void __init bcm2708_init_led(void) +{ + platform_device_register(&bcm2708_led_device); +} +#else +static inline void bcm2708_init_led(void) {} +#endif + + +MACHINE_START(BCM2708, "BCM2708") + /* Maintainer: Broadcom Europe Ltd. */ + .map_io = bcm2708_map_io, + .init_irq = bcm2708_init_irq, + .timer = &bcm2708_timer, + .init_machine = bcm2708_init, +MACHINE_END --- /dev/null +++ b/arch/arm/mach-bcm2708/bcm2708.h @@ -0,0 +1,51 @@ +/* + * linux/arch/arm/mach-bcm2708/bcm2708.h + * + * BCM2708 machine support header + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef __BCM2708_BCM2708_H +#define __BCM2708_BCM2708_H + +#include + +extern void __init bcm2708_init(void); +extern void __init bcm2708_init_irq(void); +extern void __init bcm2708_map_io(void); +extern struct sys_timer bcm2708_timer; +extern unsigned int mmc_status(struct device *dev); + +#define AMBA_DEVICE(name, busid, base, plat) \ +static struct amba_device name##_device = { \ + .dev = { \ + .coherent_dma_mask = ~0, \ + .init_name = busid, \ + .platform_data = plat, \ + }, \ + .res = { \ + .start = base##_BASE, \ + .end = (base##_BASE) + SZ_4K - 1,\ + .flags = IORESOURCE_MEM, \ + }, \ + .dma_mask = ~0, \ + .irq = base##_IRQ, \ + /* .dma = base##_DMA,*/ \ +} + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/bcm2708_gpio.c @@ -0,0 +1,323 @@ +/* + * linux/arch/arm/mach-bcm2708/bcm2708_gpio.c + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define BCM_GPIO_DRIVER_NAME "bcm2708_gpio" +#define DRIVER_NAME BCM_GPIO_DRIVER_NAME +#define BCM_GPIO_USE_IRQ 0 + +#define GPIOFSEL(x) (0x00+(x)*4) +#define GPIOSET(x) (0x1c+(x)*4) +#define GPIOCLR(x) (0x28+(x)*4) +#define GPIOLEV(x) (0x34+(x)*4) +#define GPIOEDS(x) (0x40+(x)*4) +#define GPIOREN(x) (0x4c+(x)*4) +#define GPIOFEN(x) (0x58+(x)*4) +#define GPIOHEN(x) (0x64+(x)*4) +#define GPIOLEN(x) (0x70+(x)*4) +#define GPIOAREN(x) (0x7c+(x)*4) +#define GPIOAFEN(x) (0x88+(x)*4) +#define GPIOUD(x) (0x94+(x)*4) +#define GPIOUDCLK(x) (0x98+(x)*4) + +enum { GPIO_FSEL_INPUT, GPIO_FSEL_OUTPUT, + GPIO_FSEL_ALT5, GPIO_FSEL_ALT_4, + GPIO_FSEL_ALT0, GPIO_FSEL_ALT1, + GPIO_FSEL_ALT2, GPIO_FSEL_ALT3, }; + + /* Each of the two spinlocks protects a different set of hardware + * regiters and data structurs. This decouples the code of the IRQ from + * the GPIO code. This also makes the case of a GPIO routine call from + * the IRQ code simpler. + */ +static DEFINE_SPINLOCK(lock); /* GPIO registers */ +static DEFINE_SPINLOCK(irq_lock); /* IRQ registers */ + + +struct bcm2708_gpio { + /* We use a list of bcm2708_gpio structs for each trigger IRQ in the main + * interrupts controller of the system. We need this to support systems + * in which more that one bcm2708s are connected to the same IRQ. The ISR + * interates through this list to find the source of the interrupt. + */ + struct list_head list; + + void __iomem *base; + unsigned irq_base; + struct gpio_chip gc; +}; + +static int bcm2708_set_function(struct gpio_chip *gc, unsigned offset, int function) +{ + struct bcm2708_gpio *gpio = container_of(gc, struct bcm2708_gpio, gc); + unsigned long flags; + unsigned gpiodir; + unsigned gpio_bank = offset/10; + unsigned gpio_field_offset = (offset - 10*gpio_bank) * 3; + +//printk(KERN_ERR DRIVER_NAME ": bcm2708_gpio_set_function %p (%d,%d)\n", gc, offset, function); + if (offset >= ARCH_NR_GPIOS) + return -EINVAL; + + spin_lock_irqsave(&lock, flags); + + gpiodir = readl(gpio->base + GPIOFSEL(gpio_bank)); + gpiodir &= ~(7 << gpio_field_offset); + gpiodir |= function << gpio_field_offset; + writel(gpiodir, gpio->base + GPIOFSEL(gpio_bank)); + spin_unlock_irqrestore(&lock, flags); + gpiodir = readl(gpio->base + GPIOFSEL(gpio_bank)); + + return 0; +} + + +static int bcm2708_gpio_dir_in(struct gpio_chip *gc, unsigned offset) +{ + return bcm2708_set_function(gc, offset, GPIO_FSEL_INPUT); +} + +static void bcm2708_gpio_set(struct gpio_chip *gc, unsigned offset, int value); +static int bcm2708_gpio_dir_out(struct gpio_chip *gc, unsigned offset, int value) +{ + int ret; + ret = bcm2708_set_function(gc, offset, GPIO_FSEL_OUTPUT); + if (ret >= 0) + bcm2708_gpio_set(gc, offset, value); + return ret; +} + +static int bcm2708_gpio_get(struct gpio_chip *gc, unsigned offset) +{ + struct bcm2708_gpio *gpio = container_of(gc, struct bcm2708_gpio, gc); + unsigned gpio_bank = offset/32; + unsigned gpio_field_offset = (offset - 32*gpio_bank); + unsigned lev; + + if (offset >= ARCH_NR_GPIOS) + return 0; + lev = readl(gpio->base + GPIOLEV(gpio_bank)); +//printk(KERN_ERR DRIVER_NAME ": bcm2708_gpio_get %p (%d)=%d\n", gc, offset, 0x1 & (lev>>gpio_field_offset)); + return 0x1 & (lev>>gpio_field_offset); +} + +static void bcm2708_gpio_set(struct gpio_chip *gc, unsigned offset, int value) +{ + struct bcm2708_gpio *gpio = container_of(gc, struct bcm2708_gpio, gc); + unsigned gpio_bank = offset/32; + unsigned gpio_field_offset = (offset - 32*gpio_bank); +//printk(KERN_ERR DRIVER_NAME ": bcm2708_gpio_set %p (%d=%d)\n", gc, offset, value); + if (offset >= ARCH_NR_GPIOS) + return; + if (value) + writel(1<base + GPIOSET(gpio_bank)); + else + writel(1<base + GPIOCLR(gpio_bank)); +} + +/* + * bcm2708 GPIO IRQ + */ + +#if BCM_GPIO_USE_IRQ +static void bcm2708_irq_disable(unsigned irq) +{ + struct bcm2708_gpio *chip = get_irq_chip_data(irq); + //int offset = irq - gpio->irq_base; + unsigned long flags; + + spin_lock_irqsave(&chip->irq_lock, flags); + // disable gpio interrupts here + spin_unlock_irqrestore(&chip->irq_lock, flags); +} + +static void bcm2708_irq_enable(unsigned irq) +{ + struct bcm2708_gpio *chip = get_irq_chip_data(irq); + //int offset = irq - chip->irq_base; + unsigned long flags; + + spin_lock_irqsave(&chip->irq_lock, flags); + // enable gpio interrupts here + spin_unlock_irqrestore(&chip->irq_lock, flags); +} + +static int bcm2708_irq_type(unsigned irq, unsigned trigger) +{ + struct bcm2708_gpio *chip = get_irq_chip_data(irq); + int offset = irq - chip->irq_base; + unsigned long flags; + unsigned gpio_bank = offset/32; + unsigned gpio_field_offset = (offset - 32*gpio_bank); + unsigned gpioren, gpiofen, gpiohen, gpiolen; + + if (offset < 0 || offset >= ARCH_NR_GPIOS) + return -EINVAL; + + spin_lock_irqsave(&chip->irq_lock, flags); + + gpioren = readl(chip->base + GPIOREN(gpio_bank)); + gpiofen = readl(chip->base + GPIOFEN(gpio_bank)); + gpiohen = readl(chip->base + GPIOHEN(gpio_bank)); + gpiolen = readl(chip->base + GPIOLEN(gpio_bank)); + + if (trigger & (IRQ_TYPE_EDGE_RISING)) + gpioren |= (1<base + GPIOREN(gpio_bank)); + writel(gpiofen, chip->base + GPIOFEN(gpio_bank)); + writel(gpiohen, chip->base + GPIOHEN(gpio_bank)); + writel(gpiolen, chip->base + GPIOLEN(gpio_bank)); + + spin_unlock_irqrestore(&chip->irq_lock, flags); + + return 0; +} + +static struct irq_chip bcm2708_irqchip = { + .name = "GPIO", + .enable = bcm2708_irq_enable, + .disable = bcm2708_irq_disable, + .set_type = bcm2708_irq_type, +}; + +static void bcm2708_irq_handler(unsigned irq, struct irq_desc *desc) +{ + struct list_head *chip_list = get_irq_data(irq); + struct list_head *ptr; + struct bcm2708_gpio *chip; + unsigned gpio_bank; + + desc->chip->ack(irq); + list_for_each(ptr, chip_list) { + unsigned long pending; + int offset; + + chip = list_entry(ptr, struct bcm2708_gpio, list); + for (gpio_bank = 0; gpio_bank < ARCH_NR_GPIOS/32; gpio_bank++) { + pending = readl(chip->base + GPIOEDS(gpio_bank)); + writel(pending, chip->base + GPIOEDS(gpio_bank)); + + if (pending == 0) + continue; + + for_each_set_bit(offset, &pending, ARCH_NR_GPIOS) + generic_handle_irq(gpio_to_irq(offset+32*gpio_bank)); + } + } + desc->chip->unmask(irq); +} +#endif /* #if BCM_GPIO_USE_IRQ */ + +static int bcm2708_gpio_probe(struct platform_device *dev) +{ + struct bcm2708_gpio *ucb; + struct resource *res; + int err = 0; + + printk(KERN_ERR DRIVER_NAME ": bcm2708_gpio_probe %p\n", dev); + + ucb = kzalloc(sizeof(*ucb), GFP_KERNEL); + if (NULL == ucb) { + printk(KERN_ERR DRIVER_NAME ": failed to allocate " + "mailbox memory\n"); + err = -ENOMEM; + goto err; + } + + res = platform_get_resource(dev, IORESOURCE_MEM, 0); + + platform_set_drvdata(dev, ucb); + ucb->base = __io_address(GPIO_BASE); + + ucb->gc.label = "bcm2708_gpio"; + ucb->gc.base = 0; + ucb->gc.ngpio = ARCH_NR_GPIOS; + ucb->gc.owner = THIS_MODULE; + + ucb->gc.direction_input = bcm2708_gpio_dir_in; + ucb->gc.direction_output = bcm2708_gpio_dir_out; + ucb->gc.get = bcm2708_gpio_get; + ucb->gc.set = bcm2708_gpio_set; + ucb->gc.can_sleep = 0; + + err = gpiochip_add(&ucb->gc); + if (err) + goto err; + +err: + return err; + +} + +static int bcm2708_gpio_remove(struct platform_device *dev) +{ + int err = 0; + struct bcm2708_gpio *ucb = platform_get_drvdata(dev); + + printk(KERN_ERR DRIVER_NAME ": bcm2708_gpio_remove %p\n", dev); + + err = gpiochip_remove(&ucb->gc); + + platform_set_drvdata(dev, NULL); + kfree(ucb); + + return err; +} + +static struct platform_driver bcm2708_gpio_driver = { + .probe = bcm2708_gpio_probe, + .remove = bcm2708_gpio_remove, + .driver = { + .name = "bcm2708_gpio" + }, +}; + +static int __init bcm2708_gpio_init(void) +{ + return platform_driver_register(&bcm2708_gpio_driver); +} + +static void __exit bcm2708_gpio_exit(void) +{ + platform_driver_unregister(&bcm2708_gpio_driver); +} + +module_init(bcm2708_gpio_init); +module_exit(bcm2708_gpio_exit); + +MODULE_DESCRIPTION("Broadcom BCM2708 GPIO driver"); +MODULE_LICENSE("GPL"); + --- /dev/null +++ b/arch/arm/mach-bcm2708/clock.c @@ -0,0 +1,61 @@ +/* + * linux/arch/arm/mach-bcm2708/clock.c + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include "clock.h" + +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + return clk->rate; +} +EXPORT_SYMBOL(clk_get_rate); + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + return clk->rate; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + return -EIO; +} +EXPORT_SYMBOL(clk_set_rate); --- /dev/null +++ b/arch/arm/mach-bcm2708/clock.h @@ -0,0 +1,24 @@ +/* + * linux/arch/arm/mach-bcm2708/clock.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +struct module; + +struct clk { + unsigned long rate; +}; --- /dev/null +++ b/arch/arm/mach-bcm2708/dma.c @@ -0,0 +1,397 @@ +/* + * linux/arch/arm/mach-bcm2708/dma.c + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include + +#include +#include + +/*****************************************************************************\ + * * + * Configuration * + * * +\*****************************************************************************/ + +#define CACHE_LINE_MASK 31 +#define DRIVER_NAME BCM_DMAMAN_DRIVER_NAME +#define DEFAULT_DMACHAN_BITMAP 0x10 /* channel 4 only */ + +/* valid only for channels 0 - 14, 15 has its own base address */ +#define BCM2708_DMA_CHAN(n) ((n)<<8) /* base address */ +#define BCM2708_DMA_CHANIO(dma_base, n) \ + ((void __iomem *)((char *)(dma_base)+BCM2708_DMA_CHAN(n))) + + +/*****************************************************************************\ + * * + * DMA Auxilliary Functions * + * * +\*****************************************************************************/ + +/* A DMA buffer on an arbitrary boundary may separate a cache line into a + section inside the DMA buffer and another section outside it. + Even if we flush DMA buffers from the cache there is always the chance that + during a DMA someone will access the part of a cache line that is outside + the DMA buffer - which will then bring in unwelcome data. + Without being able to dictate our own buffer pools we must insist that + DMA buffers consist of a whole number of cache lines. +*/ + +extern int +bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len) +{ + int i; + + for (i = 0; i < sg_len; i++) { + if (sg_ptr[i].offset & CACHE_LINE_MASK || + sg_ptr[i].length & CACHE_LINE_MASK) + return 0; + } + + return 1; +} +EXPORT_SYMBOL_GPL(bcm_sg_suitable_for_dma); + +extern void +bcm_dma_start(void __iomem *dma_chan_base, dma_addr_t control_block) +{ + dsb(); /* ARM data synchronization (push) operation */ + + writel(control_block, dma_chan_base + BCM2708_DMA_ADDR); + writel(BCM2708_DMA_ACTIVE, dma_chan_base + BCM2708_DMA_CS); +} + +extern void bcm_dma_wait_idle(void __iomem *dma_chan_base) +{ + dsb(); + + /* ugly busy wait only option for now */ + while (readl(dma_chan_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE); +} + +EXPORT_SYMBOL_GPL(bcm_dma_start); + +/* Complete an ongoing DMA (assuming its results are to be ignored) + Does nothing if there is no DMA in progress. + This routine waits for the current AXI transfer to complete before + terminating the current DMA. If the current transfer is hung on a DREQ used + by an uncooperative peripheral the AXI transfer may never complete. In this + case the routine times out and return a non-zero error code. + Use of this routine doesn't guarantee that the ongoing or aborted DMA + does not produce an interrupt. +*/ +extern int +bcm_dma_abort(void __iomem *dma_chan_base) +{ + unsigned long int cs; + int rc = 0; + + cs = readl(dma_chan_base + BCM2708_DMA_CS); + + if (BCM2708_DMA_ACTIVE & cs) { + long int timeout = 10000; + + /* write 0 to the active bit - pause the DMA */ + writel(0, dma_chan_base + BCM2708_DMA_CS); + + /* wait for any current AXI transfer to complete */ + while (0 != (cs & BCM2708_DMA_ISPAUSED) && --timeout >= 0) + cs = readl(dma_chan_base + BCM2708_DMA_CS); + + if (0 != (cs & BCM2708_DMA_ISPAUSED)) { + /* we'll un-pause when we set of our next DMA */ + rc = -ETIMEDOUT; + + } else if (BCM2708_DMA_ACTIVE & cs) { + /* terminate the control block chain */ + writel(0, dma_chan_base + BCM2708_DMA_NEXTCB); + + /* abort the whole DMA */ + writel(BCM2708_DMA_ABORT | BCM2708_DMA_ACTIVE, + dma_chan_base + BCM2708_DMA_CS); + } + } + + return rc; +} +EXPORT_SYMBOL_GPL(bcm_dma_abort); + + +/***************************************************************************** \ + * * + * DMA Manager Device Methods * + * * +\*****************************************************************************/ + +struct vc_dmaman { + void __iomem *dma_base; + u32 chan_available; /* bitmap of available channels */ + u32 has_feature[BCM_DMA_FEATURE_COUNT]; /* bitmap of feature presence */ +}; + +static void vc_dmaman_init(struct vc_dmaman *dmaman, void __iomem *dma_base, + u32 chans_available) +{ + dmaman->dma_base = dma_base; + dmaman->chan_available = chans_available; + dmaman->has_feature[BCM_DMA_FEATURE_FAST_ORD] = 0x0c; /* chans 2 & 3 */ +} + +static int vc_dmaman_chan_alloc(struct vc_dmaman *dmaman, + unsigned preferred_feature_set) +{ + u32 chans; + int feature; + + chans = dmaman->chan_available; + for (feature = 0; feature < BCM_DMA_FEATURE_COUNT; feature++) + /* select the subset of available channels with the desired + feature so long as some of the candidate channels have that + feature */ + if ((preferred_feature_set & (1 << feature)) && + (chans & dmaman->has_feature[feature])) + chans &= dmaman->has_feature[feature]; + + if (chans) { + int chan = 0; + /* return the ordinal of the first channel in the bitmap */ + while (chans != 0 && (chans & 1) == 0) { + chans >>= 1; + chan++; + } + /* claim the channel */ + dmaman->chan_available &= ~(1 << chan); + return chan; + } else + return -ENOMEM; +} + +static int vc_dmaman_chan_free(struct vc_dmaman *dmaman, int chan) +{ + if (chan < 0) + return -EINVAL; + else if ((1 << chan) & dmaman->chan_available) + return -EIDRM; + else { + dmaman->chan_available |= (1 << chan); + return 0; + } +} + +/*****************************************************************************\ + * * + * DMA IRQs * + * * +\*****************************************************************************/ + +static unsigned char bcm_dma_irqs[] = { + IRQ_DMA0, + IRQ_DMA1, + IRQ_DMA2, + IRQ_DMA3, + IRQ_DMA4, + IRQ_DMA5, + IRQ_DMA6, + IRQ_DMA7, + IRQ_DMA8, + IRQ_DMA9, + IRQ_DMA10, + IRQ_DMA11, + IRQ_DMA12 +}; + + +/***************************************************************************** \ + * * + * DMA Manager Monitor * + * * +\*****************************************************************************/ + +static struct device *dmaman_dev; /* we assume there's only one! */ + +extern int bcm_dma_chan_alloc(unsigned preferred_feature_set, + void __iomem **out_dma_base, int *out_dma_irq) +{ + if (!dmaman_dev) + return -ENODEV; + else { + struct vc_dmaman *dmaman = dev_get_drvdata(dmaman_dev); + int rc; + + device_lock(dmaman_dev); + rc = vc_dmaman_chan_alloc(dmaman, preferred_feature_set); + if (rc >= 0) { + *out_dma_base = BCM2708_DMA_CHANIO(dmaman->dma_base, + rc); + *out_dma_irq = bcm_dma_irqs[rc]; + } + device_unlock(dmaman_dev); + + return rc; + } +} +EXPORT_SYMBOL_GPL(bcm_dma_chan_alloc); + +extern int bcm_dma_chan_free(int channel) +{ + if (dmaman_dev) { + struct vc_dmaman *dmaman = dev_get_drvdata(dmaman_dev); + int rc; + + device_lock(dmaman_dev); + rc = vc_dmaman_chan_free(dmaman, channel); + device_unlock(dmaman_dev); + + return rc; + } else + return -ENODEV; +} +EXPORT_SYMBOL_GPL(bcm_dma_chan_free); + +static int dev_dmaman_register(const char *dev_name, struct device *dev) +{ + int rc = dmaman_dev ? -EINVAL : 0; + dmaman_dev = dev; + return rc; +} + +static void dev_dmaman_deregister(const char *dev_name, struct device *dev) +{ + dmaman_dev = NULL; +} + +/*****************************************************************************\ + * * + * DMA Device * + * * +\*****************************************************************************/ + +static int dmachans = -1; /* module parameter */ + +static int bcm_dmaman_probe(struct platform_device *pdev) +{ + int ret = 0; + struct vc_dmaman *dmaman; + struct resource *dma_res = NULL; + void __iomem *dma_base = NULL; + int have_dma_region = 0; + + dmaman = kzalloc(sizeof(*dmaman), GFP_KERNEL); + if (NULL == dmaman) { + printk(KERN_ERR DRIVER_NAME ": failed to allocate " + "DMA management memory\n"); + ret = -ENOMEM; + } else { + + dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (dma_res == NULL) { + printk(KERN_ERR DRIVER_NAME ": failed to obtain memory " + "resource\n"); + ret = -ENODEV; + } else if (!request_mem_region(dma_res->start, + resource_size(dma_res), + DRIVER_NAME)) { + dev_err(&pdev->dev, "cannot obtain DMA region\n"); + ret = -EBUSY; + } else { + have_dma_region = 1; + dma_base = ioremap(dma_res->start, + resource_size(dma_res)); + if (!dma_base) { + dev_err(&pdev->dev, "cannot map DMA region\n"); + ret = -ENOMEM; + } else { + /* use module parameter if one was provided */ + if (dmachans > 0) + vc_dmaman_init(dmaman, dma_base, + dmachans); + else + vc_dmaman_init(dmaman, dma_base, + DEFAULT_DMACHAN_BITMAP); + + platform_set_drvdata(pdev, dmaman); + dev_dmaman_register(DRIVER_NAME, &pdev->dev); + + printk(KERN_INFO DRIVER_NAME ": DMA manager " + "at %p\n", dma_base); + } + } + } + if (ret != 0) { + if (dma_base) + iounmap(dma_base); + if (dma_res && have_dma_region) + release_mem_region(dma_res->start, + resource_size(dma_res)); + if (dmaman) + kfree(dmaman); + } + return ret; +} + +static int bcm_dmaman_remove(struct platform_device *pdev) +{ + struct vc_dmaman *dmaman = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + dev_dmaman_deregister(DRIVER_NAME, &pdev->dev); + kfree(dmaman); + + return 0; +} + +static struct platform_driver bcm_dmaman_driver = { + .probe = bcm_dmaman_probe, + .remove = bcm_dmaman_remove, + + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +/*****************************************************************************\ + * * + * Driver init/exit * + * * +\*****************************************************************************/ + +static int __init bcm_dmaman_drv_init(void) +{ + int ret; + + ret = platform_driver_register(&bcm_dmaman_driver); + if (ret != 0) { + printk(KERN_ERR DRIVER_NAME ": failed to register " + "on platform\n"); + } + + return ret; +} + +static void __exit bcm_dmaman_drv_exit(void) +{ + platform_driver_unregister(&bcm_dmaman_driver); +} + +module_init(bcm_dmaman_drv_init); +module_exit(bcm_dmaman_drv_exit); + +module_param(dmachans, int, 0644); + +MODULE_AUTHOR("Gray Girling "); +MODULE_DESCRIPTION("DMA channel manager driver"); +MODULE_LICENSE("GPL"); + +MODULE_PARM_DESC(dmachans, "Bitmap of DMA channels available to the ARM"); --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/arm_control.h @@ -0,0 +1,419 @@ +/* + * linux/arch/arm/mach-bcm2708/arm_control.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef __BCM2708_ARM_CONTROL_H +#define __BCM2708_ARM_CONTROL_H + +/* + * Definitions and addresses for the ARM CONTROL logic + * This file is manually generated. + */ + +#define ARM_BASE 0x7E00B000 + +/* Basic configuration */ +#define ARM_CONTROL0 HW_REGISTER_RW(ARM_BASE+0x000) +#define ARM_C0_SIZ128M 0x00000000 +#define ARM_C0_SIZ256M 0x00000001 +#define ARM_C0_SIZ512M 0x00000002 +#define ARM_C0_SIZ1G 0x00000003 +#define ARM_C0_BRESP0 0x00000000 +#define ARM_C0_BRESP1 0x00000004 +#define ARM_C0_BRESP2 0x00000008 +#define ARM_C0_BOOTHI 0x00000010 +#define ARM_C0_UNUSED05 0x00000020 /* free */ +#define ARM_C0_FULLPERI 0x00000040 +#define ARM_C0_UNUSED78 0x00000180 /* free */ +#define ARM_C0_JTAGMASK 0x00000E00 +#define ARM_C0_JTAGOFF 0x00000000 +#define ARM_C0_JTAGBASH 0x00000800 /* Debug on GPIO off */ +#define ARM_C0_JTAGGPIO 0x00000C00 /* Debug on GPIO on */ +#define ARM_C0_APROTMSK 0x0000F000 +#define ARM_C0_DBG0SYNC 0x00010000 /* VPU0 halt sync */ +#define ARM_C0_DBG1SYNC 0x00020000 /* VPU1 halt sync */ +#define ARM_C0_SWDBGREQ 0x00040000 /* HW debug request */ +#define ARM_C0_PASSHALT 0x00080000 /* ARM halt passed to debugger */ +#define ARM_C0_PRIO_PER 0x00F00000 /* per priority mask */ +#define ARM_C0_PRIO_L2 0x0F000000 +#define ARM_C0_PRIO_UC 0xF0000000 + +#define ARM_C0_APROTPASS 0x0000A000 /* Translate 1:1 */ +#define ARM_C0_APROTUSER 0x00000000 /* Only user mode */ +#define ARM_C0_APROTSYST 0x0000F000 /* Only system mode */ + + +#define ARM_CONTROL1 HW_REGISTER_RW(ARM_BASE+0x440) +#define ARM_C1_TIMER 0x00000001 /* re-route timer IRQ to VC */ +#define ARM_C1_MAIL 0x00000002 /* re-route Mail IRQ to VC */ +#define ARM_C1_BELL0 0x00000004 /* re-route Doorbell 0 to VC */ +#define ARM_C1_BELL1 0x00000008 /* re-route Doorbell 1 to VC */ +#define ARM_C1_PERSON 0x00000100 /* peripherals on */ +#define ARM_C1_REQSTOP 0x00000200 /* ASYNC bridge request stop */ + +#define ARM_STATUS HW_REGISTER_RW(ARM_BASE+0x444) +#define ARM_S_ACKSTOP 0x80000000 /* Bridge stopped */ +#define ARM_S_READPEND 0x000003FF /* pending reads counter */ +#define ARM_S_WRITPEND 0x000FFC00 /* pending writes counter */ + +#define ARM_ERRHALT HW_REGISTER_RW(ARM_BASE+0x448) +#define ARM_EH_PERIBURST 0x00000001 /* Burst write seen on peri bus */ +#define ARM_EH_ILLADDRS1 0x00000002 /* Address bits 25-27 error */ +#define ARM_EH_ILLADDRS2 0x00000004 /* Address bits 31-28 error */ +#define ARM_EH_VPU0HALT 0x00000008 /* VPU0 halted & in debug mode */ +#define ARM_EH_VPU1HALT 0x00000010 /* VPU1 halted & in debug mode */ +#define ARM_EH_ARMHALT 0x00000020 /* ARM in halted debug mode */ + +#define ARM_ID_SECURE HW_REGISTER_RW(ARM_BASE+0x00C) +#define ARM_ID HW_REGISTER_RW(ARM_BASE+0x44C) +#define ARM_IDVAL 0x364D5241 + +/* Translation memory */ +#define ARM_TRANSLATE HW_REGISTER_RW(ARM_BASE+0x100) +/* 32 locations: 0x100.. 0x17F */ +/* 32 spare means we CAN go to 64 pages.... */ + + +/* Interrupts */ +#define ARM_IRQ_PEND0 HW_REGISTER_RW(ARM_BASE+0x200) /* Top IRQ bits */ +#define ARM_I0_TIMER 0x00000001 /* timer IRQ */ +#define ARM_I0_MAIL 0x00000002 /* Mail IRQ */ +#define ARM_I0_BELL0 0x00000004 /* Doorbell 0 */ +#define ARM_I0_BELL1 0x00000008 /* Doorbell 1 */ +#define ARM_I0_BANK1 0x00000100 /* Bank1 IRQ */ +#define ARM_I0_BANK2 0x00000200 /* Bank2 IRQ */ + +#define ARM_IRQ_PEND1 HW_REGISTER_RW(ARM_BASE+0x204) /* All bank1 IRQ bits */ +/* todo: all I1_interrupt sources */ +#define ARM_IRQ_PEND2 HW_REGISTER_RW(ARM_BASE+0x208) /* All bank2 IRQ bits */ +/* todo: all I2_interrupt sources */ + +#define ARM_IRQ_FAST HW_REGISTER_RW(ARM_BASE+0x20C) /* FIQ control */ +#define ARM_IF_INDEX 0x0000007F /* FIQ select */ +#define ARM_IF_ENABLE 0x00000080 /* FIQ enable */ +#define ARM_IF_VCMASK 0x0000003F /* FIQ = (index from VC source) */ +#define ARM_IF_TIMER 0x00000040 /* FIQ = ARM timer */ +#define ARM_IF_MAIL 0x00000041 /* FIQ = ARM Mail */ +#define ARM_IF_BELL0 0x00000042 /* FIQ = ARM Doorbell 0 */ +#define ARM_IF_BELL1 0x00000043 /* FIQ = ARM Doorbell 1 */ +#define ARM_IF_VP0HALT 0x00000044 /* FIQ = VPU0 Halt seen */ +#define ARM_IF_VP1HALT 0x00000045 /* FIQ = VPU1 Halt seen */ +#define ARM_IF_ILLEGAL 0x00000046 /* FIQ = Illegal access seen */ + +#define ARM_IRQ_ENBL1 HW_REGISTER_RW(ARM_BASE+0x210) /* Bank1 enable bits */ +#define ARM_IRQ_ENBL2 HW_REGISTER_RW(ARM_BASE+0x214) /* Bank2 enable bits */ +#define ARM_IRQ_ENBL3 HW_REGISTER_RW(ARM_BASE+0x218) /* ARM irqs enable bits */ +#define ARM_IRQ_DIBL1 HW_REGISTER_RW(ARM_BASE+0x21C) /* Bank1 disable bits */ +#define ARM_IRQ_DIBL2 HW_REGISTER_RW(ARM_BASE+0x220) /* Bank2 disable bits */ +#define ARM_IRQ_DIBL3 HW_REGISTER_RW(ARM_BASE+0x224) /* ARM irqs disable bits */ +#define ARM_IE_TIMER 0x00000001 /* Timer IRQ */ +#define ARM_IE_MAIL 0x00000002 /* Mail IRQ */ +#define ARM_IE_BELL0 0x00000004 /* Doorbell 0 */ +#define ARM_IE_BELL1 0x00000008 /* Doorbell 1 */ +#define ARM_IE_VP0HALT 0x00000010 /* VPU0 Halt */ +#define ARM_IE_VP1HALT 0x00000020 /* VPU1 Halt */ +#define ARM_IE_ILLEGAL 0x00000040 /* Illegal access seen */ + +/* Timer */ +/* For reg. fields see sp804 spec. */ +#define ARM_T_LOAD HW_REGISTER_RW(ARM_BASE+0x400) +#define ARM_T_VALUE HW_REGISTER_RW(ARM_BASE+0x404) +#define ARM_T_CONTROL HW_REGISTER_RW(ARM_BASE+0x408) +#define ARM_T_IRQCNTL HW_REGISTER_RW(ARM_BASE+0x40C) +#define ARM_T_RAWIRQ HW_REGISTER_RW(ARM_BASE+0x410) +#define ARM_T_MSKIRQ HW_REGISTER_RW(ARM_BASE+0x414) +#define ARM_T_RELOAD HW_REGISTER_RW(ARM_BASE+0x418) +#define ARM_T_PREDIV HW_REGISTER_RW(ARM_BASE+0x41c) +#define ARM_T_FREECNT HW_REGISTER_RW(ARM_BASE+0x420) + +#define TIMER_CTRL_ONESHOT (1 << 0) +#define TIMER_CTRL_32BIT (1 << 1) +#define TIMER_CTRL_DIV1 (0 << 2) +#define TIMER_CTRL_DIV16 (1 << 2) +#define TIMER_CTRL_DIV256 (2 << 2) +#define TIMER_CTRL_IE (1 << 5) +#define TIMER_CTRL_PERIODIC (1 << 6) +#define TIMER_CTRL_ENABLE (1 << 7) +#define TIMER_CTRL_DBGHALT (1 << 8) +#define TIMER_CTRL_ENAFREE (1 << 9) +#define TIMER_CTRL_FREEDIV_SHIFT 16) +#define TIMER_CTRL_FREEDIV_MASK 0xff + +/* Semaphores, Doorbells, Mailboxes */ +#define ARM_SBM_OWN0 (ARM_BASE+0x800) +#define ARM_SBM_OWN1 (ARM_BASE+0x900) +#define ARM_SBM_OWN2 (ARM_BASE+0xA00) +#define ARM_SBM_OWN3 (ARM_BASE+0xB00) + +/* MAILBOXES + * Register flags are common across all + * owner registers. See end of this section + * + * Semaphores, Doorbells, Mailboxes Owner 0 + * + */ + +#define ARM_0_SEMS HW_REGISTER_RW(ARM_SBM_OWN0+0x00) +#define ARM_0_SEM0 HW_REGISTER_RW(ARM_SBM_OWN0+0x00) +#define ARM_0_SEM1 HW_REGISTER_RW(ARM_SBM_OWN0+0x04) +#define ARM_0_SEM2 HW_REGISTER_RW(ARM_SBM_OWN0+0x08) +#define ARM_0_SEM3 HW_REGISTER_RW(ARM_SBM_OWN0+0x0C) +#define ARM_0_SEM4 HW_REGISTER_RW(ARM_SBM_OWN0+0x10) +#define ARM_0_SEM5 HW_REGISTER_RW(ARM_SBM_OWN0+0x14) +#define ARM_0_SEM6 HW_REGISTER_RW(ARM_SBM_OWN0+0x18) +#define ARM_0_SEM7 HW_REGISTER_RW(ARM_SBM_OWN0+0x1C) +#define ARM_0_BELL0 HW_REGISTER_RW(ARM_SBM_OWN0+0x40) +#define ARM_0_BELL1 HW_REGISTER_RW(ARM_SBM_OWN0+0x44) +#define ARM_0_BELL2 HW_REGISTER_RW(ARM_SBM_OWN0+0x48) +#define ARM_0_BELL3 HW_REGISTER_RW(ARM_SBM_OWN0+0x4C) +/* MAILBOX 0 access in Owner 0 area */ +/* Some addresses should ONLY be used by owner 0 */ +#define ARM_0_MAIL0_WRT HW_REGISTER_RW(ARM_SBM_OWN0+0x80) /* .. 0x8C (4 locations) */ +#define ARM_0_MAIL0_RD HW_REGISTER_RW(ARM_SBM_OWN0+0x80) /* .. 0x8C (4 locations) Normal read */ +#define ARM_0_MAIL0_POL HW_REGISTER_RW(ARM_SBM_OWN0+0x90) /* none-pop read */ +#define ARM_0_MAIL0_SND HW_REGISTER_RW(ARM_SBM_OWN0+0x94) /* Sender read (only LS 2 bits) */ +#define ARM_0_MAIL0_STA HW_REGISTER_RW(ARM_SBM_OWN0+0x98) /* Status read */ +#define ARM_0_MAIL0_CNF HW_REGISTER_RW(ARM_SBM_OWN0+0x9C) /* Config read/write */ +/* MAILBOX 1 access in Owner 0 area */ +/* Owner 0 should only WRITE to this mailbox */ +#define ARM_0_MAIL1_WRT HW_REGISTER_RW(ARM_SBM_OWN0+0xA0) /* .. 0xAC (4 locations) */ +/*#define ARM_0_MAIL1_RD HW_REGISTER_RW(ARM_SBM_OWN0+0xA0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_0_MAIL1_POL HW_REGISTER_RW(ARM_SBM_OWN0+0xB0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_0_MAIL1_SND HW_REGISTER_RW(ARM_SBM_OWN0+0xB4) */ /* DO NOT USE THIS !!!!! */ +#define ARM_0_MAIL1_STA HW_REGISTER_RW(ARM_SBM_OWN0+0xB8) /* Status read */ +/*#define ARM_0_MAIL1_CNF HW_REGISTER_RW(ARM_SBM_OWN0+0xBC) */ /* DO NOT USE THIS !!!!! */ +/* General SEM, BELL, MAIL config/status */ +#define ARM_0_SEMCLRDBG HW_REGISTER_RW(ARM_SBM_OWN0+0xE0) /* semaphore clear/debug register */ +#define ARM_0_BELLCLRDBG HW_REGISTER_RW(ARM_SBM_OWN0+0xE4) /* Doorbells clear/debug register */ +#define ARM_0_ALL_IRQS HW_REGISTER_RW(ARM_SBM_OWN0+0xF8) /* ALL interrupts */ +#define ARM_0_MY_IRQS HW_REGISTER_RW(ARM_SBM_OWN0+0xFC) /* IRQS pending for owner 0 */ + +/* Semaphores, Doorbells, Mailboxes Owner 1 */ +#define ARM_1_SEMS HW_REGISTER_RW(ARM_SBM_OWN1+0x00) +#define ARM_1_SEM0 HW_REGISTER_RW(ARM_SBM_OWN1+0x00) +#define ARM_1_SEM1 HW_REGISTER_RW(ARM_SBM_OWN1+0x04) +#define ARM_1_SEM2 HW_REGISTER_RW(ARM_SBM_OWN1+0x08) +#define ARM_1_SEM3 HW_REGISTER_RW(ARM_SBM_OWN1+0x0C) +#define ARM_1_SEM4 HW_REGISTER_RW(ARM_SBM_OWN1+0x10) +#define ARM_1_SEM5 HW_REGISTER_RW(ARM_SBM_OWN1+0x14) +#define ARM_1_SEM6 HW_REGISTER_RW(ARM_SBM_OWN1+0x18) +#define ARM_1_SEM7 HW_REGISTER_RW(ARM_SBM_OWN1+0x1C) +#define ARM_1_BELL0 HW_REGISTER_RW(ARM_SBM_OWN1+0x40) +#define ARM_1_BELL1 HW_REGISTER_RW(ARM_SBM_OWN1+0x44) +#define ARM_1_BELL2 HW_REGISTER_RW(ARM_SBM_OWN1+0x48) +#define ARM_1_BELL3 HW_REGISTER_RW(ARM_SBM_OWN1+0x4C) +/* MAILBOX 0 access in Owner 0 area */ +/* Owner 1 should only WRITE to this mailbox */ +#define ARM_1_MAIL0_WRT HW_REGISTER_RW(ARM_SBM_OWN1+0x80) /* .. 0x8C (4 locations) */ +/*#define ARM_1_MAIL0_RD HW_REGISTER_RW(ARM_SBM_OWN1+0x80) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_1_MAIL0_POL HW_REGISTER_RW(ARM_SBM_OWN1+0x90) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_1_MAIL0_SND HW_REGISTER_RW(ARM_SBM_OWN1+0x94) */ /* DO NOT USE THIS !!!!! */ +#define ARM_1_MAIL0_STA HW_REGISTER_RW(ARM_SBM_OWN1+0x98) /* Status read */ +/*#define ARM_1_MAIL0_CNF HW_REGISTER_RW(ARM_SBM_OWN1+0x9C) */ /* DO NOT USE THIS !!!!! */ +/* MAILBOX 1 access in Owner 0 area */ +#define ARM_1_MAIL1_WRT HW_REGISTER_RW(ARM_SBM_OWN1+0xA0) /* .. 0xAC (4 locations) */ +#define ARM_1_MAIL1_RD HW_REGISTER_RW(ARM_SBM_OWN1+0xA0) /* .. 0xAC (4 locations) Normal read */ +#define ARM_1_MAIL1_POL HW_REGISTER_RW(ARM_SBM_OWN1+0xB0) /* none-pop read */ +#define ARM_1_MAIL1_SND HW_REGISTER_RW(ARM_SBM_OWN1+0xB4) /* Sender read (only LS 2 bits) */ +#define ARM_1_MAIL1_STA HW_REGISTER_RW(ARM_SBM_OWN1+0xB8) /* Status read */ +#define ARM_1_MAIL1_CNF HW_REGISTER_RW(ARM_SBM_OWN1+0xBC) +/* General SEM, BELL, MAIL config/status */ +#define ARM_1_SEMCLRDBG HW_REGISTER_RW(ARM_SBM_OWN1+0xE0) /* semaphore clear/debug register */ +#define ARM_1_BELLCLRDBG HW_REGISTER_RW(ARM_SBM_OWN1+0xE4) /* Doorbells clear/debug register */ +#define ARM_1_MY_IRQS HW_REGISTER_RW(ARM_SBM_OWN1+0xFC) /* IRQS pending for owner 1 */ +#define ARM_1_ALL_IRQS HW_REGISTER_RW(ARM_SBM_OWN1+0xF8) /* ALL interrupts */ + +/* Semaphores, Doorbells, Mailboxes Owner 2 */ +#define ARM_2_SEMS HW_REGISTER_RW(ARM_SBM_OWN2+0x00) +#define ARM_2_SEM0 HW_REGISTER_RW(ARM_SBM_OWN2+0x00) +#define ARM_2_SEM1 HW_REGISTER_RW(ARM_SBM_OWN2+0x04) +#define ARM_2_SEM2 HW_REGISTER_RW(ARM_SBM_OWN2+0x08) +#define ARM_2_SEM3 HW_REGISTER_RW(ARM_SBM_OWN2+0x0C) +#define ARM_2_SEM4 HW_REGISTER_RW(ARM_SBM_OWN2+0x10) +#define ARM_2_SEM5 HW_REGISTER_RW(ARM_SBM_OWN2+0x14) +#define ARM_2_SEM6 HW_REGISTER_RW(ARM_SBM_OWN2+0x18) +#define ARM_2_SEM7 HW_REGISTER_RW(ARM_SBM_OWN2+0x1C) +#define ARM_2_BELL0 HW_REGISTER_RW(ARM_SBM_OWN2+0x40) +#define ARM_2_BELL1 HW_REGISTER_RW(ARM_SBM_OWN2+0x44) +#define ARM_2_BELL2 HW_REGISTER_RW(ARM_SBM_OWN2+0x48) +#define ARM_2_BELL3 HW_REGISTER_RW(ARM_SBM_OWN2+0x4C) +/* MAILBOX 0 access in Owner 2 area */ +/* Owner 2 should only WRITE to this mailbox */ +#define ARM_2_MAIL0_WRT HW_REGISTER_RW(ARM_SBM_OWN2+0x80) /* .. 0x8C (4 locations) */ +/*#define ARM_2_MAIL0_RD HW_REGISTER_RW(ARM_SBM_OWN2+0x80) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_2_MAIL0_POL HW_REGISTER_RW(ARM_SBM_OWN2+0x90) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_2_MAIL0_SND HW_REGISTER_RW(ARM_SBM_OWN2+0x94) */ /* DO NOT USE THIS !!!!! */ +#define ARM_2_MAIL0_STA HW_REGISTER_RW(ARM_SBM_OWN2+0x98) /* Status read */ +/*#define ARM_2_MAIL0_CNF HW_REGISTER_RW(ARM_SBM_OWN2+0x9C) */ /* DO NOT USE THIS !!!!! */ +/* MAILBOX 1 access in Owner 2 area */ +/* Owner 2 should only WRITE to this mailbox */ +#define ARM_2_MAIL1_WRT HW_REGISTER_RW(ARM_SBM_OWN2+0xA0) /* .. 0xAC (4 locations) */ +/*#define ARM_2_MAIL1_RD HW_REGISTER_RW(ARM_SBM_OWN2+0xA0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_2_MAIL1_POL HW_REGISTER_RW(ARM_SBM_OWN2+0xB0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_2_MAIL1_SND HW_REGISTER_RW(ARM_SBM_OWN2+0xB4) */ /* DO NOT USE THIS !!!!! */ +#define ARM_2_MAIL1_STA HW_REGISTER_RW(ARM_SBM_OWN2+0xB8) /* Status read */ +/*#define ARM_2_MAIL1_CNF HW_REGISTER_RW(ARM_SBM_OWN2+0xBC) */ /* DO NOT USE THIS !!!!! */ +/* General SEM, BELL, MAIL config/status */ +#define ARM_2_SEMCLRDBG HW_REGISTER_RW(ARM_SBM_OWN2+0xE0) /* semaphore clear/debug register */ +#define ARM_2_BELLCLRDBG HW_REGISTER_RW(ARM_SBM_OWN2+0xE4) /* Doorbells clear/debug register */ +#define ARM_2_MY_IRQS HW_REGISTER_RW(ARM_SBM_OWN2+0xFC) /* IRQS pending for owner 2 */ +#define ARM_2_ALL_IRQS HW_REGISTER_RW(ARM_SBM_OWN2+0xF8) /* ALL interrupts */ + +/* Semaphores, Doorbells, Mailboxes Owner 3 */ +#define ARM_3_SEMS HW_REGISTER_RW(ARM_SBM_OWN3+0x00) +#define ARM_3_SEM0 HW_REGISTER_RW(ARM_SBM_OWN3+0x00) +#define ARM_3_SEM1 HW_REGISTER_RW(ARM_SBM_OWN3+0x04) +#define ARM_3_SEM2 HW_REGISTER_RW(ARM_SBM_OWN3+0x08) +#define ARM_3_SEM3 HW_REGISTER_RW(ARM_SBM_OWN3+0x0C) +#define ARM_3_SEM4 HW_REGISTER_RW(ARM_SBM_OWN3+0x10) +#define ARM_3_SEM5 HW_REGISTER_RW(ARM_SBM_OWN3+0x14) +#define ARM_3_SEM6 HW_REGISTER_RW(ARM_SBM_OWN3+0x18) +#define ARM_3_SEM7 HW_REGISTER_RW(ARM_SBM_OWN3+0x1C) +#define ARM_3_BELL0 HW_REGISTER_RW(ARM_SBM_OWN3+0x40) +#define ARM_3_BELL1 HW_REGISTER_RW(ARM_SBM_OWN3+0x44) +#define ARM_3_BELL2 HW_REGISTER_RW(ARM_SBM_OWN3+0x48) +#define ARM_3_BELL3 HW_REGISTER_RW(ARM_SBM_OWN3+0x4C) +/* MAILBOX 0 access in Owner 3 area */ +/* Owner 3 should only WRITE to this mailbox */ +#define ARM_3_MAIL0_WRT HW_REGISTER_RW(ARM_SBM_OWN3+0x80) /* .. 0x8C (4 locations) */ +/*#define ARM_3_MAIL0_RD HW_REGISTER_RW(ARM_SBM_OWN3+0x80) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_3_MAIL0_POL HW_REGISTER_RW(ARM_SBM_OWN3+0x90) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_3_MAIL0_SND HW_REGISTER_RW(ARM_SBM_OWN3+0x94) */ /* DO NOT USE THIS !!!!! */ +#define ARM_3_MAIL0_STA HW_REGISTER_RW(ARM_SBM_OWN3+0x98) /* Status read */ +/*#define ARM_3_MAIL0_CNF HW_REGISTER_RW(ARM_SBM_OWN3+0x9C) */ /* DO NOT USE THIS !!!!! */ +/* MAILBOX 1 access in Owner 3 area */ +/* Owner 3 should only WRITE to this mailbox */ +#define ARM_3_MAIL1_WRT HW_REGISTER_RW(ARM_SBM_OWN3+0xA0) /* .. 0xAC (4 locations) */ +/*#define ARM_3_MAIL1_RD HW_REGISTER_RW(ARM_SBM_OWN3+0xA0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_3_MAIL1_POL HW_REGISTER_RW(ARM_SBM_OWN3+0xB0) */ /* DO NOT USE THIS !!!!! */ +/*#define ARM_3_MAIL1_SND HW_REGISTER_RW(ARM_SBM_OWN3+0xB4) */ /* DO NOT USE THIS !!!!! */ +#define ARM_3_MAIL1_STA HW_REGISTER_RW(ARM_SBM_OWN3+0xB8) /* Status read */ +/*#define ARM_3_MAIL1_CNF HW_REGISTER_RW(ARM_SBM_OWN3+0xBC) */ /* DO NOT USE THIS !!!!! */ +/* General SEM, BELL, MAIL config/status */ +#define ARM_3_SEMCLRDBG HW_REGISTER_RW(ARM_SBM_OWN3+0xE0) /* semaphore clear/debug register */ +#define ARM_3_BELLCLRDBG HW_REGISTER_RW(ARM_SBM_OWN3+0xE4) /* Doorbells clear/debug register */ +#define ARM_3_MY_IRQS HW_REGISTER_RW(ARM_SBM_OWN3+0xFC) /* IRQS pending for owner 3 */ +#define ARM_3_ALL_IRQS HW_REGISTER_RW(ARM_SBM_OWN3+0xF8) /* ALL interrupts */ + + + +/* Mailbox flags. Valid for all owners */ + +/* Mailbox status register (...0x98) */ +#define ARM_MS_FULL 0x80000000 +#define ARM_MS_EMPTY 0x40000000 +#define ARM_MS_LEVEL 0x400000FF /* Max. value depdnds on mailbox depth parameter */ + +/* MAILBOX config/status register (...0x9C) */ +/* ANY write to this register clears the error bits! */ +#define ARM_MC_IHAVEDATAIRQEN 0x00000001 /* mailbox irq enable: has data */ +#define ARM_MC_IHAVESPACEIRQEN 0x00000002 /* mailbox irq enable: has space */ +#define ARM_MC_OPPISEMPTYIRQEN 0x00000004 /* mailbox irq enable: Opp. is empty */ +#define ARM_MC_MAIL_CLEAR 0x00000008 /* mailbox clear write 1, then 0 */ +#define ARM_MC_IHAVEDATAIRQPEND 0x00000010 /* mailbox irq pending: has space */ +#define ARM_MC_IHAVESPACEIRQPEND 0x00000020 /* mailbox irq pending: Opp. is empty */ +#define ARM_MC_OPPISEMPTYIRQPEND 0x00000040 /* mailbox irq pending */ +/* Bit 7 is unused */ +#define ARM_MC_ERRNOOWN 0x00000100 /* error : none owner read from mailbox */ +#define ARM_MC_ERROVERFLW 0x00000200 /* error : write to fill mailbox */ +#define ARM_MC_ERRUNDRFLW 0x00000400 /* error : read from empty mailbox */ + +/* Semaphore clear/debug register (...0xE0) */ +#define ARM_SD_OWN0 0x00000003 /* Owner of sem 0 */ +#define ARM_SD_OWN1 0x0000000C /* Owner of sem 1 */ +#define ARM_SD_OWN2 0x00000030 /* Owner of sem 2 */ +#define ARM_SD_OWN3 0x000000C0 /* Owner of sem 3 */ +#define ARM_SD_OWN4 0x00000300 /* Owner of sem 4 */ +#define ARM_SD_OWN5 0x00000C00 /* Owner of sem 5 */ +#define ARM_SD_OWN6 0x00003000 /* Owner of sem 6 */ +#define ARM_SD_OWN7 0x0000C000 /* Owner of sem 7 */ +#define ARM_SD_SEM0 0x00010000 /* Status of sem 0 */ +#define ARM_SD_SEM1 0x00020000 /* Status of sem 1 */ +#define ARM_SD_SEM2 0x00040000 /* Status of sem 2 */ +#define ARM_SD_SEM3 0x00080000 /* Status of sem 3 */ +#define ARM_SD_SEM4 0x00100000 /* Status of sem 4 */ +#define ARM_SD_SEM5 0x00200000 /* Status of sem 5 */ +#define ARM_SD_SEM6 0x00400000 /* Status of sem 6 */ +#define ARM_SD_SEM7 0x00800000 /* Status of sem 7 */ + +/* Doorbells clear/debug register (...0xE4) */ +#define ARM_BD_OWN0 0x00000003 /* Owner of doorbell 0 */ +#define ARM_BD_OWN1 0x0000000C /* Owner of doorbell 1 */ +#define ARM_BD_OWN2 0x00000030 /* Owner of doorbell 2 */ +#define ARM_BD_OWN3 0x000000C0 /* Owner of doorbell 3 */ +#define ARM_BD_BELL0 0x00000100 /* Status of doorbell 0 */ +#define ARM_BD_BELL1 0x00000200 /* Status of doorbell 1 */ +#define ARM_BD_BELL2 0x00000400 /* Status of doorbell 2 */ +#define ARM_BD_BELL3 0x00000800 /* Status of doorbell 3 */ + +/* MY IRQS register (...0xF8) */ +#define ARM_MYIRQ_BELL 0x00000001 /* This owner has a doorbell IRQ */ +#define ARM_MYIRQ_MAIL 0x00000002 /* This owner has a mailbox IRQ */ + +/* ALL IRQS register (...0xF8) */ +#define ARM_AIS_BELL0 0x00000001 /* Doorbell 0 IRQ pending */ +#define ARM_AIS_BELL1 0x00000002 /* Doorbell 1 IRQ pending */ +#define ARM_AIS_BELL2 0x00000004 /* Doorbell 2 IRQ pending */ +#define ARM_AIS_BELL3 0x00000008 /* Doorbell 3 IRQ pending */ +#define ARM_AIS0_HAVEDATA 0x00000010 /* MAIL 0 has data IRQ pending */ +#define ARM_AIS0_HAVESPAC 0x00000020 /* MAIL 0 has space IRQ pending */ +#define ARM_AIS0_OPPEMPTY 0x00000040 /* MAIL 0 opposite is empty IRQ */ +#define ARM_AIS1_HAVEDATA 0x00000080 /* MAIL 1 has data IRQ pending */ +#define ARM_AIS1_HAVESPAC 0x00000100 /* MAIL 1 has space IRQ pending */ +#define ARM_AIS1_OPPEMPTY 0x00000200 /* MAIL 1 opposite is empty IRQ */ +/* Note that bell-0, bell-1 and MAIL0 IRQ go only to the ARM */ +/* Whilst that bell-2, bell-3 and MAIL1 IRQ go only to the VC */ +/* */ +/* ARM JTAG BASH */ +/* */ +#define AJB_BASE 0x7e2000c0 + +#define AJBCONF HW_REGISTER_RW(AJB_BASE+0x00) +#define AJB_BITS0 0x000000 +#define AJB_BITS4 0x000004 +#define AJB_BITS8 0x000008 +#define AJB_BITS12 0x00000C +#define AJB_BITS16 0x000010 +#define AJB_BITS20 0x000014 +#define AJB_BITS24 0x000018 +#define AJB_BITS28 0x00001C +#define AJB_BITS32 0x000020 +#define AJB_BITS34 0x000022 +#define AJB_OUT_MS 0x000040 +#define AJB_OUT_LS 0x000000 +#define AJB_INV_CLK 0x000080 +#define AJB_D0_RISE 0x000100 +#define AJB_D0_FALL 0x000000 +#define AJB_D1_RISE 0x000200 +#define AJB_D1_FALL 0x000000 +#define AJB_IN_RISE 0x000400 +#define AJB_IN_FALL 0x000000 +#define AJB_ENABLE 0x000800 +#define AJB_HOLD0 0x000000 +#define AJB_HOLD1 0x001000 +#define AJB_HOLD2 0x002000 +#define AJB_HOLD3 0x003000 +#define AJB_RESETN 0x004000 +#define AJB_CLKSHFT 16 +#define AJB_BUSY 0x80000000 +#define AJBTMS HW_REGISTER_RW(AJB_BASE+0x04) +#define AJBTDI HW_REGISTER_RW(AJB_BASE+0x08) +#define AJBTDO HW_REGISTER_RW(AJB_BASE+0x0c) + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/arm_power.h @@ -0,0 +1,60 @@ +/* + * linux/arch/arm/mach-bcm2708/include/mach/arm_power.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef _ARM_POWER_H +#define _ARM_POWER_H + +/* Use meaningful names on each side */ +#ifdef __VIDEOCORE__ +#define PREFIX(x) ARM_##x +#else +#define PREFIX(x) BCM_##x +#endif + +enum { + PREFIX(POWER_SDCARD_BIT), + PREFIX(POWER_UART_BIT), + PREFIX(POWER_MINIUART_BIT), + PREFIX(POWER_USB_BIT), + PREFIX(POWER_I2C0_BIT), + PREFIX(POWER_I2C1_BIT), + PREFIX(POWER_I2C2_BIT), + PREFIX(POWER_SPI_BIT), + PREFIX(POWER_CCP2TX_BIT), + + PREFIX(POWER_MAX) +}; + +enum { + PREFIX(POWER_SDCARD) = (1 << PREFIX(POWER_SDCARD_BIT)), + PREFIX(POWER_UART) = (1 << PREFIX(POWER_UART_BIT)), + PREFIX(POWER_MINIUART) = (1 << PREFIX(POWER_MINIUART_BIT)), + PREFIX(POWER_USB) = (1 << PREFIX(POWER_USB_BIT)), + PREFIX(POWER_I2C0) = (1 << PREFIX(POWER_I2C0_BIT)), + PREFIX(POWER_I2C1_MASK) = (1 << PREFIX(POWER_I2C1_BIT)), + PREFIX(POWER_I2C2_MASK) = (1 << PREFIX(POWER_I2C2_BIT)), + PREFIX(POWER_SPI_MASK) = (1 << PREFIX(POWER_SPI_BIT)), + PREFIX(POWER_CCP2TX_MASK) = (1 << PREFIX(POWER_CCP2TX_BIT)), + + PREFIX(POWER_MASK) = (1 << PREFIX(POWER_MAX)) - 1, + PREFIX(POWER_NONE) = 0 +}; + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/clkdev.h @@ -0,0 +1,7 @@ +#ifndef __ASM_MACH_CLKDEV_H +#define __ASM_MACH_CLKDEV_H + +#define __clk_get(clk) ({ 1; }) +#define __clk_put(clk) do { } while (0) + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/debug-macro.S @@ -0,0 +1,24 @@ +/* arch/arm/mach-bcm2708/include/mach/debug-macro.S + * + * Debugging macro include header + * + * Copyright (C) 2010 Broadcom + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * +*/ + + .macro addruart, rx, tmp + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + moveq \rx, #0x08000000 + movne \rx, #0xf8000000 @ virtual base + orr \rx, \rx, #0x00200000 + orr \rx, \rx, #0x00001000 + .endm + +#include --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/dma.h @@ -0,0 +1,84 @@ +/* + * linux/arch/arm/mach-bcm2708/include/mach/dma.h + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + + +#ifndef _MACH_BCM2708_DMA_H +#define _MACH_BCM2708_DMA_H + +#define BCM_DMAMAN_DRIVER_NAME "bcm2708_dma" + +/* DMA CS Control and Status bits */ +#define BCM2708_DMA_ACTIVE (1 << 0) +#define BCM2708_DMA_INT (1 << 2) +#define BCM2708_DMA_ISPAUSED (1 << 4) /* Pause requested or not active */ +#define BCM2708_DMA_ISHELD (1 << 5) /* Is held by DREQ flow control */ +#define BCM2708_DMA_ERR (1 << 8) +#define BCM2708_DMA_ABORT (1 << 30) /* stop current CB, go to next, WO */ +#define BCM2708_DMA_RESET (1 << 31) /* WO, self clearing */ + +/* DMA control block "info" field bits */ +#define BCM2708_DMA_INT_EN (1 << 0) +#define BCM2708_DMA_TDMODE (1 << 1) +#define BCM2708_DMA_WAIT_RESP (1 << 3) +#define BCM2708_DMA_D_INC (1 << 4) +#define BCM2708_DMA_D_WIDTH (1 << 5) +#define BCM2708_DMA_D_DREQ (1 << 6) +#define BCM2708_DMA_S_INC (1 << 8) +#define BCM2708_DMA_S_WIDTH (1 << 9) +#define BCM2708_DMA_S_DREQ (1 << 10) + +#define BCM2708_DMA_BURST(x) (((x)&0xf) << 12) +#define BCM2708_DMA_PER_MAP(x) ((x) << 16) +#define BCM2708_DMA_WAITS(x) (((x)&0x1f) << 21) + +#define BCM2708_DMA_DREQ_EMMC 11 +#define BCM2708_DMA_DREQ_SDHOST 13 + +#define BCM2708_DMA_CS 0x00 /* Control and Status */ +#define BCM2708_DMA_ADDR 0x04 +/* the current control block appears in the following registers - read only */ +#define BCM2708_DMA_INFO 0x08 +#define BCM2708_DMA_NEXTCB 0x1C +#define BCM2708_DMA_DEBUG 0x20 + +#define BCM2708_DMA4_CS (BCM2708_DMA_CHAN(4)+BCM2708_DMA_CS) +#define BCM2708_DMA4_ADDR (BCM2708_DMA_CHAN(4)+BCM2708_DMA_ADDR) + +#define BCM2708_DMA_TDMODE_LEN(w, h) ((h) << 16 | (w)) + +struct bcm2708_dma_cb { + unsigned long info; + unsigned long src; + unsigned long dst; + unsigned long length; + unsigned long stride; + unsigned long next; + unsigned long pad[2]; +}; + +extern int bcm_sg_suitable_for_dma(struct scatterlist *sg_ptr, int sg_len); +extern void bcm_dma_start(void __iomem *dma_chan_base, + dma_addr_t control_block); +extern void bcm_dma_wait_idle(void __iomem *dma_chan_base); +extern int /*rc*/ bcm_dma_abort(void __iomem *dma_chan_base); + +/* When listing features we can ask for when allocating DMA channels give + those with higher priority smaller ordinal numbers */ +#define BCM_DMA_FEATURE_FAST_ORD 0 +#define BCM_DMA_FEATURE_FAST (1< + + .macro disable_fiq + .endm + + .macro get_irqnr_preamble, base, tmp + ldr \base, =IO_ADDRESS(ARMCTRL_IC_BASE) + .endm + + .macro arch_ret_to_user, tmp1, tmp2 + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + /* get masked status */ + ldr \irqstat, [\base, #(ARM_IRQ_PEND0 - ARMCTRL_IC_BASE)] + mov \irqnr, #(ARM_IRQ0_BASE + 31) + and \tmp, \irqstat, #0x300 @ save bits 8 and 9 + /* clear bits 8 and 9, and test */ + bics \irqstat, \irqstat, #0x300 + bne 1010f + + tst \tmp, #0x100 + ldrne \irqstat, [\base, #(ARM_IRQ_PEND1 - ARMCTRL_IC_BASE)] + movne \irqnr, #(ARM_IRQ1_BASE + 31) + @ Mask out the interrupts also present in PEND0 - see SW-5809 + bicne \irqstat, #((1<<7) | (1<<9) | (1<<10)) + bicne \irqstat, #((1<<18) | (1<<19)) + bne 1010f + + tst \tmp, #0x200 + ldrne \irqstat, [\base, #(ARM_IRQ_PEND2 - ARMCTRL_IC_BASE)] + movne \irqnr, #(ARM_IRQ2_BASE + 31) + @ Mask out the interrupts also present in PEND0 - see SW-5809 + bicne \irqstat, #((1<<21) | (1<<22) | (1<<23) | (1<<24) | (1<<25)) + bicne \irqstat, #((1<<30)) + beq 1020f + +1010: + @ For non-zero x, LSB(x) = 31 - CLZ(x^(x-1)) + @ N.B. CLZ is an ARM5 instruction. + sub \tmp, \irqstat, #1 + eor \irqstat, \irqstat, \tmp + clz \tmp, \irqstat + sub \irqnr, \tmp + +1020: @ EQ will be set if no irqs pending + + .endm --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/frc.h @@ -0,0 +1,38 @@ +/* + * arch/arm/mach-bcm2708/include/mach/timex.h + * + * BCM2708 free running counter (timer) + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef _MACH_FRC_H +#define _MACH_FRC_H + +#define FRC_TICK_RATE (1000000) + +/*! Free running counter incrementing at the CLOCK_TICK_RATE + (slightly faster than frc_clock_ticks63() + */ +extern unsigned long frc_clock_ticks32(void); + +/*! Free running counter incrementing at the CLOCK_TICK_RATE + * Note - top bit should be ignored (see cnt32_to_63) + */ +extern unsigned long long frc_clock_ticks63(void); + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/gpio.h @@ -0,0 +1,48 @@ +/* + * arch/arm/mach-bcm2708/include/mach/gpio.h + * + * 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. + */ + +#ifndef __ASM_ARCH_GPIO_H +#define __ASM_ARCH_GPIO_H + +#define ARCH_NR_GPIOS 54 // number of gpio lines + +#include + + +#ifdef CONFIG_GPIOLIB + +static inline int gpio_get_value(unsigned gpio) +{ + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +static inline int gpio_cansleep(unsigned gpio) +{ + return __gpio_cansleep(gpio); +} + +static inline int gpio_to_irq(unsigned gpio) +{ + WARN_ON(1); + return -ENOSYS; +} + +static inline int irq_to_gpio(unsigned int irq) +{ + WARN_ON(1); + return -EINVAL; +} + +#endif /* CONFIG_GPIOLIB */ + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/hardware.h @@ -0,0 +1,28 @@ +/* + * arch/arm/mach-bcm2708/include/mach/hardware.h + * + * This file contains the hardware definitions of the BCM2708 devices. + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include +#include + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/io.h @@ -0,0 +1,28 @@ +/* + * arch/arm/mach-bcm2708/include/mach/io.h + * + * Copyright (C) 2003 ARM Limited + * + * 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 + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define IO_SPACE_LIMIT 0xffffffff + +#define __io(a) __typesafe_io(a) +#define __mem_pci(a) (a) + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/irqs.h @@ -0,0 +1,190 @@ +/* + * arch/arm/mach-bcm2708/include/mach/irqs.h + * + * Copyright (C) 2010 Broadcom + * Copyright (C) 2003 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions 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. + * + * 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 + */ + +#ifndef _BCM2708_IRQS_H_ +#define _BCM2708_IRQS_H_ + +#include + +/* + * IRQ interrupts definitions are the same as the INT definitions + * held within platform.h + */ +#define IRQ_ARMCTRL_START 0 +#define IRQ_TIMER0 (IRQ_ARMCTRL_START + INTERRUPT_TIMER0) +#define IRQ_TIMER1 (IRQ_ARMCTRL_START + INTERRUPT_TIMER1) +#define IRQ_TIMER2 (IRQ_ARMCTRL_START + INTERRUPT_TIMER2) +#define IRQ_TIMER3 (IRQ_ARMCTRL_START + INTERRUPT_TIMER3) +#define IRQ_CODEC0 (IRQ_ARMCTRL_START + INTERRUPT_CODEC0) +#define IRQ_CODEC1 (IRQ_ARMCTRL_START + INTERRUPT_CODEC1) +#define IRQ_CODEC2 (IRQ_ARMCTRL_START + INTERRUPT_CODEC2) +#define IRQ_JPEG (IRQ_ARMCTRL_START + INTERRUPT_JPEG) +#define IRQ_ISP (IRQ_ARMCTRL_START + INTERRUPT_ISP) +#define IRQ_USB (IRQ_ARMCTRL_START + INTERRUPT_USB) +#define IRQ_3D (IRQ_ARMCTRL_START + INTERRUPT_3D) +#define IRQ_TRANSPOSER (IRQ_ARMCTRL_START + INTERRUPT_TRANSPOSER) +#define IRQ_MULTICORESYNC0 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC0) +#define IRQ_MULTICORESYNC1 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC1) +#define IRQ_MULTICORESYNC2 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC2) +#define IRQ_MULTICORESYNC3 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC3) +#define IRQ_DMA0 (IRQ_ARMCTRL_START + INTERRUPT_DMA0) +#define IRQ_DMA1 (IRQ_ARMCTRL_START + INTERRUPT_DMA1) +#define IRQ_DMA2 (IRQ_ARMCTRL_START + INTERRUPT_DMA2) +#define IRQ_DMA3 (IRQ_ARMCTRL_START + INTERRUPT_DMA3) +#define IRQ_DMA4 (IRQ_ARMCTRL_START + INTERRUPT_DMA4) +#define IRQ_DMA5 (IRQ_ARMCTRL_START + INTERRUPT_DMA5) +#define IRQ_DMA6 (IRQ_ARMCTRL_START + INTERRUPT_DMA6) +#define IRQ_DMA7 (IRQ_ARMCTRL_START + INTERRUPT_DMA7) +#define IRQ_DMA8 (IRQ_ARMCTRL_START + INTERRUPT_DMA8) +#define IRQ_DMA9 (IRQ_ARMCTRL_START + INTERRUPT_DMA9) +#define IRQ_DMA10 (IRQ_ARMCTRL_START + INTERRUPT_DMA10) +#define IRQ_DMA11 (IRQ_ARMCTRL_START + INTERRUPT_DMA11) +#define IRQ_DMA12 (IRQ_ARMCTRL_START + INTERRUPT_DMA12) +#define IRQ_AUX (IRQ_ARMCTRL_START + INTERRUPT_AUX) +#define IRQ_ARM (IRQ_ARMCTRL_START + INTERRUPT_ARM) +#define IRQ_VPUDMA (IRQ_ARMCTRL_START + INTERRUPT_VPUDMA) +#define IRQ_HOSTPORT (IRQ_ARMCTRL_START + INTERRUPT_HOSTPORT) +#define IRQ_VIDEOSCALER (IRQ_ARMCTRL_START + INTERRUPT_VIDEOSCALER) +#define IRQ_CCP2TX (IRQ_ARMCTRL_START + INTERRUPT_CCP2TX) +#define IRQ_SDC (IRQ_ARMCTRL_START + INTERRUPT_SDC) +#define IRQ_DSI0 (IRQ_ARMCTRL_START + INTERRUPT_DSI0) +#define IRQ_AVE (IRQ_ARMCTRL_START + INTERRUPT_AVE) +#define IRQ_CAM0 (IRQ_ARMCTRL_START + INTERRUPT_CAM0) +#define IRQ_CAM1 (IRQ_ARMCTRL_START + INTERRUPT_CAM1) +#define IRQ_HDMI0 (IRQ_ARMCTRL_START + INTERRUPT_HDMI0) +#define IRQ_HDMI1 (IRQ_ARMCTRL_START + INTERRUPT_HDMI1) +#define IRQ_PIXELVALVE1 (IRQ_ARMCTRL_START + INTERRUPT_PIXELVALVE1) +#define IRQ_I2CSPISLV (IRQ_ARMCTRL_START + INTERRUPT_I2CSPISLV) +#define IRQ_DSI1 (IRQ_ARMCTRL_START + INTERRUPT_DSI1) +#define IRQ_PWA0 (IRQ_ARMCTRL_START + INTERRUPT_PWA0) +#define IRQ_PWA1 (IRQ_ARMCTRL_START + INTERRUPT_PWA1) +#define IRQ_CPR (IRQ_ARMCTRL_START + INTERRUPT_CPR) +#define IRQ_SMI (IRQ_ARMCTRL_START + INTERRUPT_SMI) +#define IRQ_GPIO0 (IRQ_ARMCTRL_START + INTERRUPT_GPIO0) +#define IRQ_GPIO1 (IRQ_ARMCTRL_START + INTERRUPT_GPIO1) +#define IRQ_GPIO2 (IRQ_ARMCTRL_START + INTERRUPT_GPIO2) +#define IRQ_GPIO3 (IRQ_ARMCTRL_START + INTERRUPT_GPIO3) +#define IRQ_I2C (IRQ_ARMCTRL_START + INTERRUPT_I2C) +#define IRQ_SPI (IRQ_ARMCTRL_START + INTERRUPT_SPI) +#define IRQ_I2SPCM (IRQ_ARMCTRL_START + INTERRUPT_I2SPCM) +#define IRQ_SDIO (IRQ_ARMCTRL_START + INTERRUPT_SDIO) +#define IRQ_UART (IRQ_ARMCTRL_START + INTERRUPT_UART) +#define IRQ_SLIMBUS (IRQ_ARMCTRL_START + INTERRUPT_SLIMBUS) +#define IRQ_VEC (IRQ_ARMCTRL_START + INTERRUPT_VEC) +#define IRQ_CPG (IRQ_ARMCTRL_START + INTERRUPT_CPG) +#define IRQ_RNG (IRQ_ARMCTRL_START + INTERRUPT_RNG) +#define IRQ_ARASANSDIO (IRQ_ARMCTRL_START + INTERRUPT_ARASANSDIO) +#define IRQ_AVSPMON (IRQ_ARMCTRL_START + INTERRUPT_AVSPMON) + +#define IRQ_ARM_TIMER (IRQ_ARMCTRL_START + INTERRUPT_ARM_TIMER) +#define IRQ_ARM_MAILBOX (IRQ_ARMCTRL_START + INTERRUPT_ARM_MAILBOX) +#define IRQ_ARM_DOORBELL_0 (IRQ_ARMCTRL_START + INTERRUPT_ARM_DOORBELL_0) +#define IRQ_ARM_DOORBELL_1 (IRQ_ARMCTRL_START + INTERRUPT_ARM_DOORBELL_1) +#define IRQ_VPU0_HALTED (IRQ_ARMCTRL_START + INTERRUPT_VPU0_HALTED) +#define IRQ_VPU1_HALTED (IRQ_ARMCTRL_START + INTERRUPT_VPU1_HALTED) +#define IRQ_ILLEGAL_TYPE0 (IRQ_ARMCTRL_START + INTERRUPT_ILLEGAL_TYPE0) +#define IRQ_ILLEGAL_TYPE1 (IRQ_ARMCTRL_START + INTERRUPT_ILLEGAL_TYPE1) +#define IRQ_PENDING1 (IRQ_ARMCTRL_START + INTERRUPT_PENDING1) +#define IRQ_PENDING2 (IRQ_ARMCTRL_START + INTERRUPT_PENDING2) + +/* + * FIQ interrupts definitions are the same as the INT definitions. + */ +#define FIQ_TIMER0 INT_TIMER0 +#define FIQ_TIMER1 INT_TIMER1 +#define FIQ_TIMER2 INT_TIMER2 +#define FIQ_TIMER3 INT_TIMER3 +#define FIQ_CODEC0 INT_CODEC0 +#define FIQ_CODEC1 INT_CODEC1 +#define FIQ_CODEC2 INT_CODEC2 +#define FIQ_JPEG INT_JPEG +#define FIQ_ISP INT_ISP +#define FIQ_USB INT_USB +#define FIQ_3D INT_3D +#define FIQ_TRANSPOSER INT_TRANSPOSER +#define FIQ_MULTICORESYNC0 INT_MULTICORESYNC0 +#define FIQ_MULTICORESYNC1 INT_MULTICORESYNC1 +#define FIQ_MULTICORESYNC2 INT_MULTICORESYNC2 +#define FIQ_MULTICORESYNC3 INT_MULTICORESYNC3 +#define FIQ_DMA0 INT_DMA0 +#define FIQ_DMA1 INT_DMA1 +#define FIQ_DMA2 INT_DMA2 +#define FIQ_DMA3 INT_DMA3 +#define FIQ_DMA4 INT_DMA4 +#define FIQ_DMA5 INT_DMA5 +#define FIQ_DMA6 INT_DMA6 +#define FIQ_DMA7 INT_DMA7 +#define FIQ_DMA8 INT_DMA8 +#define FIQ_DMA9 INT_DMA9 +#define FIQ_DMA10 INT_DMA10 +#define FIQ_DMA11 INT_DMA11 +#define FIQ_DMA12 INT_DMA12 +#define FIQ_AUX INT_AUX +#define FIQ_ARM INT_ARM +#define FIQ_VPUDMA INT_VPUDMA +#define FIQ_HOSTPORT INT_HOSTPORT +#define FIQ_VIDEOSCALER INT_VIDEOSCALER +#define FIQ_CCP2TX INT_CCP2TX +#define FIQ_SDC INT_SDC +#define FIQ_DSI0 INT_DSI0 +#define FIQ_AVE INT_AVE +#define FIQ_CAM0 INT_CAM0 +#define FIQ_CAM1 INT_CAM1 +#define FIQ_HDMI0 INT_HDMI0 +#define FIQ_HDMI1 INT_HDMI1 +#define FIQ_PIXELVALVE1 INT_PIXELVALVE1 +#define FIQ_I2CSPISLV INT_I2CSPISLV +#define FIQ_DSI1 INT_DSI1 +#define FIQ_PWA0 INT_PWA0 +#define FIQ_PWA1 INT_PWA1 +#define FIQ_CPR INT_CPR +#define FIQ_SMI INT_SMI +#define FIQ_GPIO0 INT_GPIO0 +#define FIQ_GPIO1 INT_GPIO1 +#define FIQ_GPIO2 INT_GPIO2 +#define FIQ_GPIO3 INT_GPIO3 +#define FIQ_I2C INT_I2C +#define FIQ_SPI INT_SPI +#define FIQ_I2SPCM INT_I2SPCM +#define FIQ_SDIO INT_SDIO +#define FIQ_UART INT_UART +#define FIQ_SLIMBUS INT_SLIMBUS +#define FIQ_VEC INT_VEC +#define FIQ_CPG INT_CPG +#define FIQ_RNG INT_RNG +#define FIQ_ARASANSDIO INT_ARASANSDIO +#define FIQ_AVSPMON INT_AVSPMON + +#define FIQ_ARM_TIMER INT_ARM_TIMER +#define FIQ_ARM_MAILBOX INT_ARM_MAILBOX +#define FIQ_ARM_DOORBELL_0 INT_ARM_DOORBELL_0 +#define FIQ_ARM_DOORBELL_1 INT_ARM_DOORBELL_1 +#define FIQ_VPU0_HALTED INT_VPU0_HALTED +#define FIQ_VPU1_HALTED INT_VPU1_HALTED +#define FIQ_ILLEGAL_TYPE0 INT_ILLEGAL_TYPE0 +#define FIQ_ILLEGAL_TYPE1 INT_ILLEGAL_TYPE1 +#define FIQ_PENDING1 INT_PENDING1 +#define FIQ_PENDING2 INT_PENDING2 + +#define NR_IRQS (64 + 21) + +#endif /* _BCM2708_IRQS_H_ */ --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/irqs.h.orig @@ -0,0 +1,185 @@ +/* + * arch/arm/mach-bcm2708/include/mach/irqs.h + * + * Copyright (C) 2010 Broadcom + * Copyright (C) 2003 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions 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. + * + * 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 + */ + +#include + +/* + * IRQ interrupts definitions are the same as the INT definitions + * held within platform.h + */ +#define IRQ_ARMCTRL_START 0 +#define IRQ_TIMER0 (IRQ_ARMCTRL_START + INTERRUPT_TIMER0) +#define IRQ_TIMER1 (IRQ_ARMCTRL_START + INTERRUPT_TIMER1) +#define IRQ_TIMER2 (IRQ_ARMCTRL_START + INTERRUPT_TIMER2) +#define IRQ_TIMER3 (IRQ_ARMCTRL_START + INTERRUPT_TIMER3) +#define IRQ_CODEC0 (IRQ_ARMCTRL_START + INTERRUPT_CODEC0) +#define IRQ_CODEC1 (IRQ_ARMCTRL_START + INTERRUPT_CODEC1) +#define IRQ_CODEC2 (IRQ_ARMCTRL_START + INTERRUPT_CODEC2) +#define IRQ_JPEG (IRQ_ARMCTRL_START + INTERRUPT_JPEG) +#define IRQ_ISP (IRQ_ARMCTRL_START + INTERRUPT_ISP) +#define IRQ_USB (IRQ_ARMCTRL_START + INTERRUPT_USB) +#define IRQ_3D (IRQ_ARMCTRL_START + INTERRUPT_3D) +#define IRQ_TRANSPOSER (IRQ_ARMCTRL_START + INTERRUPT_TRANSPOSER) +#define IRQ_MULTICORESYNC0 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC0) +#define IRQ_MULTICORESYNC1 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC1) +#define IRQ_MULTICORESYNC2 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC2) +#define IRQ_MULTICORESYNC3 (IRQ_ARMCTRL_START + INTERRUPT_MULTICORESYNC3) +#define IRQ_DMA0 (IRQ_ARMCTRL_START + INTERRUPT_DMA0) +#define IRQ_DMA1 (IRQ_ARMCTRL_START + INTERRUPT_DMA1) +#define IRQ_DMA2 (IRQ_ARMCTRL_START + INTERRUPT_DMA2) +#define IRQ_DMA3 (IRQ_ARMCTRL_START + INTERRUPT_DMA3) +#define IRQ_DMA4 (IRQ_ARMCTRL_START + INTERRUPT_DMA4) +#define IRQ_DMA5 (IRQ_ARMCTRL_START + INTERRUPT_DMA5) +#define IRQ_DMA6 (IRQ_ARMCTRL_START + INTERRUPT_DMA6) +#define IRQ_DMA7 (IRQ_ARMCTRL_START + INTERRUPT_DMA7) +#define IRQ_DMA8 (IRQ_ARMCTRL_START + INTERRUPT_DMA8) +#define IRQ_DMA9 (IRQ_ARMCTRL_START + INTERRUPT_DMA9) +#define IRQ_DMA10 (IRQ_ARMCTRL_START + INTERRUPT_DMA10) +#define IRQ_DMA11 (IRQ_ARMCTRL_START + INTERRUPT_DMA11) +#define IRQ_DMA12 (IRQ_ARMCTRL_START + INTERRUPT_DMA12) +#define IRQ_AUX (IRQ_ARMCTRL_START + INTERRUPT_AUX) +#define IRQ_ARM (IRQ_ARMCTRL_START + INTERRUPT_ARM) +#define IRQ_VPUDMA (IRQ_ARMCTRL_START + INTERRUPT_VPUDMA) +#define IRQ_HOSTPORT (IRQ_ARMCTRL_START + INTERRUPT_HOSTPORT) +#define IRQ_VIDEOSCALER (IRQ_ARMCTRL_START + INTERRUPT_VIDEOSCALER) +#define IRQ_CCP2TX (IRQ_ARMCTRL_START + INTERRUPT_CCP2TX) +#define IRQ_SDC (IRQ_ARMCTRL_START + INTERRUPT_SDC) +#define IRQ_DSI0 (IRQ_ARMCTRL_START + INTERRUPT_DSI0) +#define IRQ_AVE (IRQ_ARMCTRL_START + INTERRUPT_AVE) +#define IRQ_CAM0 (IRQ_ARMCTRL_START + INTERRUPT_CAM0) +#define IRQ_CAM1 (IRQ_ARMCTRL_START + INTERRUPT_CAM1) +#define IRQ_HDMI0 (IRQ_ARMCTRL_START + INTERRUPT_HDMI0) +#define IRQ_HDMI1 (IRQ_ARMCTRL_START + INTERRUPT_HDMI1) +#define IRQ_PIXELVALVE1 (IRQ_ARMCTRL_START + INTERRUPT_PIXELVALVE1) +#define IRQ_I2CSPISLV (IRQ_ARMCTRL_START + INTERRUPT_I2CSPISLV) +#define IRQ_DSI1 (IRQ_ARMCTRL_START + INTERRUPT_DSI1) +#define IRQ_PWA0 (IRQ_ARMCTRL_START + INTERRUPT_PWA0) +#define IRQ_PWA1 (IRQ_ARMCTRL_START + INTERRUPT_PWA1) +#define IRQ_CPR (IRQ_ARMCTRL_START + INTERRUPT_CPR) +#define IRQ_SMI (IRQ_ARMCTRL_START + INTERRUPT_SMI) +#define IRQ_GPIO0 (IRQ_ARMCTRL_START + INTERRUPT_GPIO0) +#define IRQ_GPIO1 (IRQ_ARMCTRL_START + INTERRUPT_GPIO1) +#define IRQ_GPIO2 (IRQ_ARMCTRL_START + INTERRUPT_GPIO2) +#define IRQ_GPIO3 (IRQ_ARMCTRL_START + INTERRUPT_GPIO3) +#define IRQ_I2C (IRQ_ARMCTRL_START + INTERRUPT_I2C) +#define IRQ_SPI (IRQ_ARMCTRL_START + INTERRUPT_SPI) +#define IRQ_I2SPCM (IRQ_ARMCTRL_START + INTERRUPT_I2SPCM) +#define IRQ_SDIO (IRQ_ARMCTRL_START + INTERRUPT_SDIO) +#define IRQ_UART (IRQ_ARMCTRL_START + INTERRUPT_UART) +#define IRQ_SLIMBUS (IRQ_ARMCTRL_START + INTERRUPT_SLIMBUS) +#define IRQ_VEC (IRQ_ARMCTRL_START + INTERRUPT_VEC) +#define IRQ_CPG (IRQ_ARMCTRL_START + INTERRUPT_CPG) +#define IRQ_RNG (IRQ_ARMCTRL_START + INTERRUPT_RNG) +#define IRQ_ARASANSDIO (IRQ_ARMCTRL_START + INTERRUPT_ARASANSDIO) +#define IRQ_AVSPMON (IRQ_ARMCTRL_START + INTERRUPT_AVSPMON) + +#define IRQ_ARM_TIMER (IRQ_ARMCTRL_START + INTERRUPT_ARM_TIMER) +#define IRQ_ARM_MAILBOX (IRQ_ARMCTRL_START + INTERRUPT_ARM_MAILBOX) +#define IRQ_ARM_DOORBELL_0 (IRQ_ARMCTRL_START + INTERRUPT_ARM_DOORBELL_0) +#define IRQ_ARM_DOORBELL_1 (IRQ_ARMCTRL_START + INTERRUPT_ARM_DOORBELL_1) +#define IRQ_VPU0_HALTED (IRQ_ARMCTRL_START + INTERRUPT_VPU0_HALTED) +#define IRQ_VPU1_HALTED (IRQ_ARMCTRL_START + INTERRUPT_VPU1_HALTED) +#define IRQ_ILLEGAL_TYPE0 (IRQ_ARMCTRL_START + INTERRUPT_ILLEGAL_TYPE0) +#define IRQ_ILLEGAL_TYPE1 (IRQ_ARMCTRL_START + INTERRUPT_ILLEGAL_TYPE1) +#define IRQ_PENDING1 (IRQ_ARMCTRL_START + INTERRUPT_PENDING1) +#define IRQ_PENDING2 (IRQ_ARMCTRL_START + INTERRUPT_PENDING2) + +/* + * FIQ interrupts definitions are the same as the INT definitions. + */ +#define FIQ_TIMER0 INT_TIMER0 +#define FIQ_TIMER1 INT_TIMER1 +#define FIQ_TIMER2 INT_TIMER2 +#define FIQ_TIMER3 INT_TIMER3 +#define FIQ_CODEC0 INT_CODEC0 +#define FIQ_CODEC1 INT_CODEC1 +#define FIQ_CODEC2 INT_CODEC2 +#define FIQ_JPEG INT_JPEG +#define FIQ_ISP INT_ISP +#define FIQ_USB INT_USB +#define FIQ_3D INT_3D +#define FIQ_TRANSPOSER INT_TRANSPOSER +#define FIQ_MULTICORESYNC0 INT_MULTICORESYNC0 +#define FIQ_MULTICORESYNC1 INT_MULTICORESYNC1 +#define FIQ_MULTICORESYNC2 INT_MULTICORESYNC2 +#define FIQ_MULTICORESYNC3 INT_MULTICORESYNC3 +#define FIQ_DMA0 INT_DMA0 +#define FIQ_DMA1 INT_DMA1 +#define FIQ_DMA2 INT_DMA2 +#define FIQ_DMA3 INT_DMA3 +#define FIQ_DMA4 INT_DMA4 +#define FIQ_DMA5 INT_DMA5 +#define FIQ_DMA6 INT_DMA6 +#define FIQ_DMA7 INT_DMA7 +#define FIQ_DMA8 INT_DMA8 +#define FIQ_DMA9 INT_DMA9 +#define FIQ_DMA10 INT_DMA10 +#define FIQ_DMA11 INT_DMA11 +#define FIQ_DMA12 INT_DMA12 +#define FIQ_AUX INT_AUX +#define FIQ_ARM INT_ARM +#define FIQ_VPUDMA INT_VPUDMA +#define FIQ_HOSTPORT INT_HOSTPORT +#define FIQ_VIDEOSCALER INT_VIDEOSCALER +#define FIQ_CCP2TX INT_CCP2TX +#define FIQ_SDC INT_SDC +#define FIQ_DSI0 INT_DSI0 +#define FIQ_AVE INT_AVE +#define FIQ_CAM0 INT_CAM0 +#define FIQ_CAM1 INT_CAM1 +#define FIQ_HDMI0 INT_HDMI0 +#define FIQ_HDMI1 INT_HDMI1 +#define FIQ_PIXELVALVE1 INT_PIXELVALVE1 +#define FIQ_I2CSPISLV INT_I2CSPISLV +#define FIQ_DSI1 INT_DSI1 +#define FIQ_PWA0 INT_PWA0 +#define FIQ_PWA1 INT_PWA1 +#define FIQ_CPR INT_CPR +#define FIQ_SMI INT_SMI +#define FIQ_GPIO0 INT_GPIO0 +#define FIQ_GPIO1 INT_GPIO1 +#define FIQ_GPIO2 INT_GPIO2 +#define FIQ_GPIO3 INT_GPIO3 +#define FIQ_I2C INT_I2C +#define FIQ_SPI INT_SPI +#define FIQ_I2SPCM INT_I2SPCM +#define FIQ_SDIO INT_SDIO +#define FIQ_UART INT_UART +#define FIQ_SLIMBUS INT_SLIMBUS +#define FIQ_VEC INT_VEC +#define FIQ_CPG INT_CPG +#define FIQ_RNG INT_RNG +#define FIQ_ARASANSDIO INT_ARASANSDIO +#define FIQ_AVSPMON INT_AVSPMON + +#define FIQ_ARM_TIMER INT_ARM_TIMER +#define FIQ_ARM_MAILBOX INT_ARM_MAILBOX +#define FIQ_ARM_DOORBELL_0 INT_ARM_DOORBELL_0 +#define FIQ_ARM_DOORBELL_1 INT_ARM_DOORBELL_1 +#define FIQ_VPU0_HALTED INT_VPU0_HALTED +#define FIQ_VPU1_HALTED INT_VPU1_HALTED +#define FIQ_ILLEGAL_TYPE0 INT_ILLEGAL_TYPE0 +#define FIQ_ILLEGAL_TYPE1 INT_ILLEGAL_TYPE1 +#define FIQ_PENDING1 INT_PENDING1 +#define FIQ_PENDING2 INT_PENDING2 + +#define NR_IRQS (64 + 21) --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/memory.h @@ -0,0 +1,59 @@ +/* + * arch/arm/mach-bcm2708/include/mach/memory.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +/* Memory overview: + + [ARMcore] <--virtual addr--> + [ARMmmu] <--physical addr--> + [GERTmap] <--bus add--> + [VCperiph] + +*/ + +/* + * Physical DRAM offset. + */ +#define PHYS_OFFSET UL(0x00000000) +#define ARMMEM_OFFSET UL(0x00000000) /* offset in VC of ARM memory */ +#define _REAL_BUS_OFFSET UL(0xC0000000) /* don't use L1 or L2 caches */ + +/* We're using the memory at 64M in the VideoCore for Linux - this adjustment + * will provide the offset into this area as well as setting the bits that + * stop the L1 and L2 cache from being used + * + * WARNING: this only works because the ARM is given memory at a fixed location + * (ARMMEM_OFFSET) + */ +#define BUS_OFFSET (ARMMEM_OFFSET + _REAL_BUS_OFFSET) +#define __virt_to_bus(x) ((x) + (BUS_OFFSET - PAGE_OFFSET)) +#define __bus_to_virt(x) ((x) - (BUS_OFFSET - PAGE_OFFSET)) +#define __pfn_to_bus(x) (__pfn_to_phys(x) + (BUS_OFFSET - PHYS_OFFSET)) +#define __bus_to_pfn(x) __phys_to_pfn((x) - (BUS_OFFSET - PHYS_OFFSET)) + +/* + * Consistent DMA area set to 2M. Framebuffer now allocated on host + */ + + +#define CONSISTENT_DMA_SIZE 0x00200000 + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/platform.h @@ -0,0 +1,210 @@ +/* + * arch/arm/mach-bcm2708/include/mach/platform.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef _BCM2708_PLATFORM_H +#define _BCM2708_PLATFORM_H + + +/* macros to get at IO space when running virtually */ +#define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) + +#define __io_address(a) __io(IO_ADDRESS(a)) + + +/* + * SDRAM + */ +#define BCM2708_SDRAM_BASE 0x00000000 + +/* + * Logic expansion modules + * + */ + + +/* ------------------------------------------------------------------------ + * BCM2708 ARMCTRL Registers + * ------------------------------------------------------------------------ + */ + +#define HW_REGISTER_RW(addr) (addr) +#define HW_REGISTER_RO(addr) (addr) + +#include "arm_control.h" +#undef ARM_BASE + +/* + * Definitions and addresses for the ARM CONTROL logic + * This file is manually generated. + */ + +#define BCM2708_PERI_BASE 0x20000000 +#define ST_BASE (BCM2708_PERI_BASE + 0x3000) /* System Timer */ +#define DMA_BASE (BCM2708_PERI_BASE + 0x7000) /* DMA controller */ +#define ARM_BASE (BCM2708_PERI_BASE + 0xB000) /* BCM2708 ARM control block */ +#define PM_BASE (BCM2708_PERI_BASE + 0x100000) /* Power Management, Reset controller and Watchdog registers */ +#define GPIO_BASE (BCM2708_PERI_BASE + 0x200000) /* GPIO */ +#define UART0_BASE (BCM2708_PERI_BASE + 0x201000) /* Uart 0 */ +#define MMCI0_BASE (BCM2708_PERI_BASE + 0x202000) /* MMC interface */ +#define UART1_BASE (BCM2708_PERI_BASE + 0x215000) /* Uart 1 */ +#define EMMC_BASE (BCM2708_PERI_BASE + 0x300000) /* eMMC interface */ +#define SMI_BASE (BCM2708_PERI_BASE + 0x600000) /* SMI */ +#define USB_BASE (BCM2708_PERI_BASE + 0x980000) /* DTC_OTG USB controller */ +#define MCORE_BASE (BCM2708_PERI_BASE + 0x0000) /* Fake frame buffer device (actually the multicore sync block*/ + +#define ARMCTRL_BASE (ARM_BASE + 0x000) +#define ARMCTRL_IC_BASE (ARM_BASE + 0x200) /* ARM interrupt controller */ +#define ARMCTRL_TIMER0_1_BASE (ARM_BASE + 0x400) /* Timer 0 and 1 */ +#define ARMCTRL_0_SBM_BASE (ARM_BASE + 0x800) /* User 0 (ARM)'s Semaphores Doorbells and Mailboxes */ + + +/* + * Interrupt assignments + */ + +#define ARM_IRQ1_BASE 0 +#define INTERRUPT_TIMER0 (ARM_IRQ1_BASE + 0) +#define INTERRUPT_TIMER1 (ARM_IRQ1_BASE + 1) +#define INTERRUPT_TIMER2 (ARM_IRQ1_BASE + 2) +#define INTERRUPT_TIMER3 (ARM_IRQ1_BASE + 3) +#define INTERRUPT_CODEC0 (ARM_IRQ1_BASE + 4) +#define INTERRUPT_CODEC1 (ARM_IRQ1_BASE + 5) +#define INTERRUPT_CODEC2 (ARM_IRQ1_BASE + 6) +#define INTERRUPT_VC_JPEG (ARM_IRQ1_BASE + 7) +#define INTERRUPT_ISP (ARM_IRQ1_BASE + 8) +#define INTERRUPT_VC_USB (ARM_IRQ1_BASE + 9) +#define INTERRUPT_VC_3D (ARM_IRQ1_BASE + 10) +#define INTERRUPT_TRANSPOSER (ARM_IRQ1_BASE + 11) +#define INTERRUPT_MULTICORESYNC0 (ARM_IRQ1_BASE + 12) +#define INTERRUPT_MULTICORESYNC1 (ARM_IRQ1_BASE + 13) +#define INTERRUPT_MULTICORESYNC2 (ARM_IRQ1_BASE + 14) +#define INTERRUPT_MULTICORESYNC3 (ARM_IRQ1_BASE + 15) +#define INTERRUPT_DMA0 (ARM_IRQ1_BASE + 16) +#define INTERRUPT_DMA1 (ARM_IRQ1_BASE + 17) +#define INTERRUPT_VC_DMA2 (ARM_IRQ1_BASE + 18) +#define INTERRUPT_VC_DMA3 (ARM_IRQ1_BASE + 19) +#define INTERRUPT_DMA4 (ARM_IRQ1_BASE + 20) +#define INTERRUPT_DMA5 (ARM_IRQ1_BASE + 21) +#define INTERRUPT_DMA6 (ARM_IRQ1_BASE + 22) +#define INTERRUPT_DMA7 (ARM_IRQ1_BASE + 23) +#define INTERRUPT_DMA8 (ARM_IRQ1_BASE + 24) +#define INTERRUPT_DMA9 (ARM_IRQ1_BASE + 25) +#define INTERRUPT_DMA10 (ARM_IRQ1_BASE + 26) +#define INTERRUPT_DMA11 (ARM_IRQ1_BASE + 27) +#define INTERRUPT_DMA12 (ARM_IRQ1_BASE + 28) +#define INTERRUPT_AUX (ARM_IRQ1_BASE + 29) +#define INTERRUPT_ARM (ARM_IRQ1_BASE + 30) +#define INTERRUPT_VPUDMA (ARM_IRQ1_BASE + 31) + +#define ARM_IRQ2_BASE 32 +#define INTERRUPT_HOSTPORT (ARM_IRQ2_BASE + 0) +#define INTERRUPT_VIDEOSCALER (ARM_IRQ2_BASE + 1) +#define INTERRUPT_CCP2TX (ARM_IRQ2_BASE + 2) +#define INTERRUPT_SDC (ARM_IRQ2_BASE + 3) +#define INTERRUPT_DSI0 (ARM_IRQ2_BASE + 4) +#define INTERRUPT_AVE (ARM_IRQ2_BASE + 5) +#define INTERRUPT_CAM0 (ARM_IRQ2_BASE + 6) +#define INTERRUPT_CAM1 (ARM_IRQ2_BASE + 7) +#define INTERRUPT_HDMI0 (ARM_IRQ2_BASE + 8) +#define INTERRUPT_HDMI1 (ARM_IRQ2_BASE + 9) +#define INTERRUPT_PIXELVALVE1 (ARM_IRQ2_BASE + 10) +#define INTERRUPT_I2CSPISLV (ARM_IRQ2_BASE + 11) +#define INTERRUPT_DSI1 (ARM_IRQ2_BASE + 12) +#define INTERRUPT_PWA0 (ARM_IRQ2_BASE + 13) +#define INTERRUPT_PWA1 (ARM_IRQ2_BASE + 14) +#define INTERRUPT_CPR (ARM_IRQ2_BASE + 15) +#define INTERRUPT_SMI (ARM_IRQ2_BASE + 16) +#define INTERRUPT_GPIO0 (ARM_IRQ2_BASE + 17) +#define INTERRUPT_GPIO1 (ARM_IRQ2_BASE + 18) +#define INTERRUPT_GPIO2 (ARM_IRQ2_BASE + 19) +#define INTERRUPT_GPIO3 (ARM_IRQ2_BASE + 20) +#define INTERRUPT_VC_I2C (ARM_IRQ2_BASE + 21) +#define INTERRUPT_VC_SPI (ARM_IRQ2_BASE + 22) +#define INTERRUPT_VC_I2SPCM (ARM_IRQ2_BASE + 23) +#define INTERRUPT_VC_SDIO (ARM_IRQ2_BASE + 24) +#define INTERRUPT_VC_UART (ARM_IRQ2_BASE + 25) +#define INTERRUPT_SLIMBUS (ARM_IRQ2_BASE + 26) +#define INTERRUPT_VEC (ARM_IRQ2_BASE + 27) +#define INTERRUPT_CPG (ARM_IRQ2_BASE + 28) +#define INTERRUPT_RNG (ARM_IRQ2_BASE + 29) +#define INTERRUPT_VC_ARASANSDIO (ARM_IRQ2_BASE + 30) +#define INTERRUPT_AVSPMON (ARM_IRQ2_BASE + 31) + +#define ARM_IRQ0_BASE 64 +#define INTERRUPT_ARM_TIMER (ARM_IRQ0_BASE + 0) +#define INTERRUPT_ARM_MAILBOX (ARM_IRQ0_BASE + 1) +#define INTERRUPT_ARM_DOORBELL_0 (ARM_IRQ0_BASE + 2) +#define INTERRUPT_ARM_DOORBELL_1 (ARM_IRQ0_BASE + 3) +#define INTERRUPT_VPU0_HALTED (ARM_IRQ0_BASE + 4) +#define INTERRUPT_VPU1_HALTED (ARM_IRQ0_BASE + 5) +#define INTERRUPT_ILLEGAL_TYPE0 (ARM_IRQ0_BASE + 6) +#define INTERRUPT_ILLEGAL_TYPE1 (ARM_IRQ0_BASE + 7) +#define INTERRUPT_PENDING1 (ARM_IRQ0_BASE + 8) +#define INTERRUPT_PENDING2 (ARM_IRQ0_BASE + 9) +#define INTERRUPT_JPEG (ARM_IRQ0_BASE + 10) +#define INTERRUPT_USB (ARM_IRQ0_BASE + 11) +#define INTERRUPT_3D (ARM_IRQ0_BASE + 12) +#define INTERRUPT_DMA2 (ARM_IRQ0_BASE + 13) +#define INTERRUPT_DMA3 (ARM_IRQ0_BASE + 14) +#define INTERRUPT_I2C (ARM_IRQ0_BASE + 15) +#define INTERRUPT_SPI (ARM_IRQ0_BASE + 16) +#define INTERRUPT_I2SPCM (ARM_IRQ0_BASE + 17) +#define INTERRUPT_SDIO (ARM_IRQ0_BASE + 18) +#define INTERRUPT_UART (ARM_IRQ0_BASE + 19) +#define INTERRUPT_ARASANSDIO (ARM_IRQ0_BASE + 20) + +#define MAXIRQNUM (32 + 32 + 20) +#define MAXFIQNUM (32 + 32 + 20) + +#define MAX_TIMER 2 +#define MAX_PERIOD 699050 +#define TICKS_PER_uSEC 1 + +/* + * These are useconds NOT ticks. + * + */ +#define mSEC_1 1000 +#define mSEC_5 (mSEC_1 * 5) +#define mSEC_10 (mSEC_1 * 10) +#define mSEC_25 (mSEC_1 * 25) +#define SEC_1 (mSEC_1 * 1000) + +/* + * Watchdog + */ +#define PM_RSTC (PM_BASE+0x1c) +#define PM_WDOG (PM_BASE+0x24) + +#define PM_WDOG_RESET 0000000000 +#define PM_PASSWORD 0x5a000000 +#define PM_WDOG_TIME_SET 0x000fffff +#define PM_RSTC_WRCFG_CLR 0xffffffcf +#define PM_RSTC_WRCFG_SET 0x00000030 +#define PM_RSTC_WRCFG_FULL_RESET 0x00000020 +#define PM_RSTC_RESET 0x00000102 + + + + + +#endif + +/* END */ --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/platform.h.orig @@ -0,0 +1,210 @@ +/* + * arch/arm/mach-bcm2708/include/mach/platform.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#ifndef _BCM2708_PLATFORM_H +#define _BCM2708_PLATFORM_H + + +/* macros to get at IO space when running virtually */ +#define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) + +#define __io_address(a) __io(IO_ADDRESS(a)) + + +/* + * SDRAM + */ +#define BCM2708_SDRAM_BASE 0x00000000 + +/* + * Logic expansion modules + * + */ + + +/* ------------------------------------------------------------------------ + * BCM2708 ARMCTRL Registers + * ------------------------------------------------------------------------ + */ + +#define HW_REGISTER_RW(addr) (addr) +#define HW_REGISTER_RO(addr) (addr) + +#include "arm_control.h" +#undef ARM_BASE + +/* + * Definitions and addresses for the ARM CONTROL logic + * This file is manually generated. + */ + +#define BCM2708_PERI_BASE 0x20000000 +#define ST_BASE (BCM2708_PERI_BASE + 0x3000) /* System Timer */ +#define DMA_BASE (BCM2708_PERI_BASE + 0x7000) /* DMA controller */ +#define ARM_BASE (BCM2708_PERI_BASE + 0xB000) /* BCM2708 ARM control block */ +#define PM_BASE (BCM2708_PERI_BASE + 0x100000) /* Power Management, Reset controller and Watchdog registers */ +#define GPIO_BASE (BCM2708_PERI_BASE + 0x200000) /* GPIO */ +#define UART0_BASE (BCM2708_PERI_BASE + 0x201000) /* Uart 0 */ +#define MMCI0_BASE (BCM2708_PERI_BASE + 0x202000) /* MMC interface */ +#define UART1_BASE (BCM2708_PERI_BASE + 0x215000) /* Uart 1 */ +#define EMMC_BASE (BCM2708_PERI_BASE + 0x300000) /* eMMC interface */ +#define SMI_BASE (BCM2708_PERI_BASE + 0x600000) /* SMI */ +#define USB_BASE (BCM2708_PERI_BASE + 0x980000) /* DTC_OTG USB controller */ + + +#define ARMCTRL_BASE (ARM_BASE + 0x000) +#define ARMCTRL_IC_BASE (ARM_BASE + 0x200) /* ARM interrupt controller */ +#define ARMCTRL_TIMER0_1_BASE (ARM_BASE + 0x400) /* Timer 0 and 1 */ +#define ARMCTRL_0_SBM_BASE (ARM_BASE + 0x800) /* User 0 (ARM)'s Semaphores Doorbells and Mailboxes */ + + +/* + * Interrupt assignments + */ + +#define ARM_IRQ1_BASE 0 +#define INTERRUPT_TIMER0 (ARM_IRQ1_BASE + 0) +#define INTERRUPT_TIMER1 (ARM_IRQ1_BASE + 1) +#define INTERRUPT_TIMER2 (ARM_IRQ1_BASE + 2) +#define INTERRUPT_TIMER3 (ARM_IRQ1_BASE + 3) +#define INTERRUPT_CODEC0 (ARM_IRQ1_BASE + 4) +#define INTERRUPT_CODEC1 (ARM_IRQ1_BASE + 5) +#define INTERRUPT_CODEC2 (ARM_IRQ1_BASE + 6) +#define INTERRUPT_VC_JPEG (ARM_IRQ1_BASE + 7) +#define INTERRUPT_ISP (ARM_IRQ1_BASE + 8) +#define INTERRUPT_VC_USB (ARM_IRQ1_BASE + 9) +#define INTERRUPT_VC_3D (ARM_IRQ1_BASE + 10) +#define INTERRUPT_TRANSPOSER (ARM_IRQ1_BASE + 11) +#define INTERRUPT_MULTICORESYNC0 (ARM_IRQ1_BASE + 12) +#define INTERRUPT_MULTICORESYNC1 (ARM_IRQ1_BASE + 13) +#define INTERRUPT_MULTICORESYNC2 (ARM_IRQ1_BASE + 14) +#define INTERRUPT_MULTICORESYNC3 (ARM_IRQ1_BASE + 15) +#define INTERRUPT_DMA0 (ARM_IRQ1_BASE + 16) +#define INTERRUPT_DMA1 (ARM_IRQ1_BASE + 17) +#define INTERRUPT_VC_DMA2 (ARM_IRQ1_BASE + 18) +#define INTERRUPT_VC_DMA3 (ARM_IRQ1_BASE + 19) +#define INTERRUPT_DMA4 (ARM_IRQ1_BASE + 20) +#define INTERRUPT_DMA5 (ARM_IRQ1_BASE + 21) +#define INTERRUPT_DMA6 (ARM_IRQ1_BASE + 22) +#define INTERRUPT_DMA7 (ARM_IRQ1_BASE + 23) +#define INTERRUPT_DMA8 (ARM_IRQ1_BASE + 24) +#define INTERRUPT_DMA9 (ARM_IRQ1_BASE + 25) +#define INTERRUPT_DMA10 (ARM_IRQ1_BASE + 26) +#define INTERRUPT_DMA11 (ARM_IRQ1_BASE + 27) +#define INTERRUPT_DMA12 (ARM_IRQ1_BASE + 28) +#define INTERRUPT_AUX (ARM_IRQ1_BASE + 29) +#define INTERRUPT_ARM (ARM_IRQ1_BASE + 30) +#define INTERRUPT_VPUDMA (ARM_IRQ1_BASE + 31) + +#define ARM_IRQ2_BASE 32 +#define INTERRUPT_HOSTPORT (ARM_IRQ2_BASE + 0) +#define INTERRUPT_VIDEOSCALER (ARM_IRQ2_BASE + 1) +#define INTERRUPT_CCP2TX (ARM_IRQ2_BASE + 2) +#define INTERRUPT_SDC (ARM_IRQ2_BASE + 3) +#define INTERRUPT_DSI0 (ARM_IRQ2_BASE + 4) +#define INTERRUPT_AVE (ARM_IRQ2_BASE + 5) +#define INTERRUPT_CAM0 (ARM_IRQ2_BASE + 6) +#define INTERRUPT_CAM1 (ARM_IRQ2_BASE + 7) +#define INTERRUPT_HDMI0 (ARM_IRQ2_BASE + 8) +#define INTERRUPT_HDMI1 (ARM_IRQ2_BASE + 9) +#define INTERRUPT_PIXELVALVE1 (ARM_IRQ2_BASE + 10) +#define INTERRUPT_I2CSPISLV (ARM_IRQ2_BASE + 11) +#define INTERRUPT_DSI1 (ARM_IRQ2_BASE + 12) +#define INTERRUPT_PWA0 (ARM_IRQ2_BASE + 13) +#define INTERRUPT_PWA1 (ARM_IRQ2_BASE + 14) +#define INTERRUPT_CPR (ARM_IRQ2_BASE + 15) +#define INTERRUPT_SMI (ARM_IRQ2_BASE + 16) +#define INTERRUPT_GPIO0 (ARM_IRQ2_BASE + 17) +#define INTERRUPT_GPIO1 (ARM_IRQ2_BASE + 18) +#define INTERRUPT_GPIO2 (ARM_IRQ2_BASE + 19) +#define INTERRUPT_GPIO3 (ARM_IRQ2_BASE + 20) +#define INTERRUPT_VC_I2C (ARM_IRQ2_BASE + 21) +#define INTERRUPT_VC_SPI (ARM_IRQ2_BASE + 22) +#define INTERRUPT_VC_I2SPCM (ARM_IRQ2_BASE + 23) +#define INTERRUPT_VC_SDIO (ARM_IRQ2_BASE + 24) +#define INTERRUPT_VC_UART (ARM_IRQ2_BASE + 25) +#define INTERRUPT_SLIMBUS (ARM_IRQ2_BASE + 26) +#define INTERRUPT_VEC (ARM_IRQ2_BASE + 27) +#define INTERRUPT_CPG (ARM_IRQ2_BASE + 28) +#define INTERRUPT_RNG (ARM_IRQ2_BASE + 29) +#define INTERRUPT_VC_ARASANSDIO (ARM_IRQ2_BASE + 30) +#define INTERRUPT_AVSPMON (ARM_IRQ2_BASE + 31) + +#define ARM_IRQ0_BASE 64 +#define INTERRUPT_ARM_TIMER (ARM_IRQ0_BASE + 0) +#define INTERRUPT_ARM_MAILBOX (ARM_IRQ0_BASE + 1) +#define INTERRUPT_ARM_DOORBELL_0 (ARM_IRQ0_BASE + 2) +#define INTERRUPT_ARM_DOORBELL_1 (ARM_IRQ0_BASE + 3) +#define INTERRUPT_VPU0_HALTED (ARM_IRQ0_BASE + 4) +#define INTERRUPT_VPU1_HALTED (ARM_IRQ0_BASE + 5) +#define INTERRUPT_ILLEGAL_TYPE0 (ARM_IRQ0_BASE + 6) +#define INTERRUPT_ILLEGAL_TYPE1 (ARM_IRQ0_BASE + 7) +#define INTERRUPT_PENDING1 (ARM_IRQ0_BASE + 8) +#define INTERRUPT_PENDING2 (ARM_IRQ0_BASE + 9) +#define INTERRUPT_JPEG (ARM_IRQ0_BASE + 10) +#define INTERRUPT_USB (ARM_IRQ0_BASE + 11) +#define INTERRUPT_3D (ARM_IRQ0_BASE + 12) +#define INTERRUPT_DMA2 (ARM_IRQ0_BASE + 13) +#define INTERRUPT_DMA3 (ARM_IRQ0_BASE + 14) +#define INTERRUPT_I2C (ARM_IRQ0_BASE + 15) +#define INTERRUPT_SPI (ARM_IRQ0_BASE + 16) +#define INTERRUPT_I2SPCM (ARM_IRQ0_BASE + 17) +#define INTERRUPT_SDIO (ARM_IRQ0_BASE + 18) +#define INTERRUPT_UART (ARM_IRQ0_BASE + 19) +#define INTERRUPT_ARASANSDIO (ARM_IRQ0_BASE + 20) + +#define MAXIRQNUM (32 + 32 + 20) +#define MAXFIQNUM (32 + 32 + 20) + +#define MAX_TIMER 2 +#define MAX_PERIOD 699050 +#define TICKS_PER_uSEC 1 + +/* + * These are useconds NOT ticks. + * + */ +#define mSEC_1 1000 +#define mSEC_5 (mSEC_1 * 5) +#define mSEC_10 (mSEC_1 * 10) +#define mSEC_25 (mSEC_1 * 25) +#define SEC_1 (mSEC_1 * 1000) + +/* + * Watchdog + */ +#define PM_RSTC (PM_BASE+0x1c) +#define PM_WDOG (PM_BASE+0x24) + +#define PM_WDOG_RESET 0000000000 +#define PM_PASSWORD 0x5a000000 +#define PM_WDOG_TIME_SET 0x000fffff +#define PM_RSTC_WRCFG_CLR 0xffffffcf +#define PM_RSTC_WRCFG_SET 0x00000030 +#define PM_RSTC_WRCFG_FULL_RESET 0x00000020 +#define PM_RSTC_RESET 0x00000102 + + + + + +#endif + +/* END */ --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/power.h @@ -0,0 +1,26 @@ +/* + * linux/arch/arm/mach-bcm2708/power.h + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This device provides a shared mechanism for controlling the power to + * VideoCore subsystems. + */ + +#ifndef _MACH_BCM2708_POWER_H +#define _MACH_BCM2708_POWER_H + +#include +#include + +typedef unsigned int BCM_POWER_HANDLE_T; + +extern int bcm_power_open(BCM_POWER_HANDLE_T *handle); +extern int bcm_power_request(BCM_POWER_HANDLE_T handle, uint32_t request); +extern int bcm_power_close(BCM_POWER_HANDLE_T handle); + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/system.h @@ -0,0 +1,53 @@ +/* + * arch/arm/mach-bcm2708/include/mach/system.h + * + * Copyright (C) 2010 Broadcom + * Copyright (C) 2003 ARM Limited + * Copyright (C) 2000 Deep Blue Solutions 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. + * + * 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 + */ +#ifndef __ASM_ARCH_SYSTEM_H +#define __ASM_ARCH_SYSTEM_H + +#include +#include +#include + +static inline void arch_idle(void) +{ + /* + * This should do all the clock switching + * and wait for interrupt tricks + */ + cpu_do_idle(); +} + +static inline void arch_reset(char mode, const char *cmd) +{ + uint32_t pm_rstc, pm_wdog; + uint32_t timeout = 10; + + /* Setup watchdog for reset */ + pm_rstc = readl(IO_ADDRESS(PM_RSTC)); + + pm_wdog = PM_PASSWORD | (timeout & PM_WDOG_TIME_SET); // watchdog timer = timer clock / 16; need password (31:16) + value (11:0) + pm_rstc = PM_PASSWORD | (pm_rstc & PM_RSTC_WRCFG_CLR) | PM_RSTC_WRCFG_FULL_RESET; + + writel(pm_wdog, IO_ADDRESS(PM_WDOG)); + writel(pm_rstc, IO_ADDRESS(PM_RSTC)); +} + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/timex.h @@ -0,0 +1,23 @@ +/* + * arch/arm/mach-bcm2708/include/mach/timex.h + * + * BCM2708 sysem clock frequency + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ + +#define CLOCK_TICK_RATE (1000000) --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/uncompress.h @@ -0,0 +1,49 @@ +/* + * arch/arm/mach-bcn2708/include/mach/uncompress.h + * + * Copyright (C) 2010 Broadcom + * Copyright (C) 2003 ARM Limited + * + * 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 + */ + +#include +#include + +#define BCM2708_UART_DR __io_address(UART0_BASE + 0x00) +#define BCM2708_UART_FR __io_address(UART0_BASE + 0x18) + +/* + * This does not append a newline + */ +static inline void putc(int c) +{ + while (readl(BCM2708_UART_FR) & (1 << 5)) + barrier(); + + writel(c, BCM2708_UART_DR); +} + +static inline void flush(void) +{ + while (readl(BCM2708_UART_FR) & (1 << 3)) + barrier(); +} + +/* + * nothing to do + */ +#define arch_decomp_setup() +#define arch_decomp_wdog() --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/vc_mem.h @@ -0,0 +1,34 @@ +/***************************************************************************** +* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#if !defined( VC_MEM_H ) +#define VC_MEM_H + +#include + +#define VC_MEM_IOC_MAGIC 'v' + +#define VC_MEM_IOC_MEM_PHYS_ADDR _IOR( VC_MEM_IOC_MAGIC, 0, unsigned long ) +#define VC_MEM_IOC_MEM_SIZE _IOR( VC_MEM_IOC_MAGIC, 1, unsigned int ) + +#if defined( __KERNEL__ ) +#define VC_MEM_TO_ARM_ADDR_MASK 0x3FFFFFFF + +extern unsigned long mm_vc_mem_phys_addr; +extern unsigned int mm_vc_mem_size; +extern int vc_mem_get_current_size( void ); +#endif + +#endif /* VC_MEM_H */ + --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/vcio.h @@ -0,0 +1,42 @@ +/* + * arch/arm/mach-bcm2708/include/mach/vcio.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#ifndef _MACH_BCM2708_VCIO_H +#define _MACH_BCM2708_VCIO_H + +/* Routines to handle I/O via the VideoCore "ARM control" registers + * (semaphores, doorbells, mailboxes) + */ + +#define BCM_VCIO_DRIVER_NAME "bcm2708_vcio" + +/* Constants shared with the ARM identifying separate mailbox channels */ +#define MBOX_CHAN_POWER 0 /* for use by the power management interface */ +#define MBOX_CHAN_FB 1 /* for use by the frame buffer */ +#define MBOX_CHAN_VUART 2 /* for use by the virtual UART */ +#define MBOX_CHAN_VCHIQ 3 /* for use by the VCHIQ interface */ +#define MBOX_CHAN_LEDS 4 /* for use by the leds interface */ +#define MBOX_CHAN_BUTTONS 5 /* for use by the buttons interface */ +#define MBOX_CHAN_TOUCH 6 /* for use by the touchscreen interface */ +#define MBOX_CHAN_COUNT 7 + +extern int /*rc*/ bcm_mailbox_read(unsigned chan, uint32_t *data28); +extern int /*rc*/ bcm_mailbox_write(unsigned chan, uint32_t data28); + +#endif --- /dev/null +++ b/arch/arm/mach-bcm2708/include/mach/vmalloc.h @@ -0,0 +1,20 @@ +/* + * arch/arm/mach-bcm2708/include/mach/vmalloc.h + * + * Copyright (C) 2010 Broadcom + * + * 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 + */ +#define VMALLOC_END (0xd8000000) --- /dev/null +++ b/arch/arm/mach-bcm2708/power.c @@ -0,0 +1,193 @@ +/* + * linux/arch/arm/mach-bcm2708/power.c + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This device provides a shared mechanism for controlling the power to + * VideoCore subsystems. + */ + +#include +#include +#include +#include +#include +#include + +#define DRIVER_NAME "bcm2708_power" + +#define BCM_POWER_MAXCLIENTS 4 +#define BCM_POWER_NOCLIENT (1<<31) + +/* Some drivers expect there devices to be permanently powered */ +#define BCM_POWER_ALWAYS_ON (BCM_POWER_USB) + +#if 1 +#define DPRINTK printk +#else +#define DPRINTK if (0) printk +#endif + +struct state_struct { + uint32_t global_request; + uint32_t client_request[BCM_POWER_MAXCLIENTS]; + struct semaphore client_mutex; + struct semaphore mutex; +} g_state; + +int bcm_power_open(BCM_POWER_HANDLE_T *handle) +{ + BCM_POWER_HANDLE_T i; + int ret = -EBUSY; + + down(&g_state.client_mutex); + + for (i = 0; i < BCM_POWER_MAXCLIENTS; i++) { + if (g_state.client_request[i] == BCM_POWER_NOCLIENT) { + g_state.client_request[i] = BCM_POWER_NONE; + *handle = i; + ret = 0; + break; + } + } + + up(&g_state.client_mutex); + + DPRINTK("bcm_power_open() -> %d\n", *handle); + + return ret; +} +EXPORT_SYMBOL_GPL(bcm_power_open); + +int bcm_power_request(BCM_POWER_HANDLE_T handle, uint32_t request) +{ + int rc = 0; + + DPRINTK("bcm_power_request(%d, %x)\n", handle, request); + + if ((handle < BCM_POWER_MAXCLIENTS) && + (g_state.client_request[handle] != BCM_POWER_NOCLIENT)) { + if (down_interruptible(&g_state.mutex) != 0) { + DPRINTK("bcm_power_request -> interrupted\n"); + return -EINTR; + } + + if (request != g_state.client_request[handle]) { + uint32_t others_request = 0; + uint32_t global_request; + BCM_POWER_HANDLE_T i; + + for (i = 0; i < BCM_POWER_MAXCLIENTS; i++) { + if (i != handle) + others_request |= + g_state.client_request[i]; + } + others_request &= ~BCM_POWER_NOCLIENT; + + global_request = request | others_request; + if (global_request != g_state.global_request) { + uint32_t actual; + + /* Send a request to VideoCore */ + bcm_mailbox_write(MBOX_CHAN_POWER, + global_request << 4); + + /* Wait for a response during power-up */ + if (global_request & ~g_state.global_request) { + rc = bcm_mailbox_read(MBOX_CHAN_POWER, + &actual); + DPRINTK + ("bcm_mailbox_read -> %08x, %d\n", + actual, rc); + actual >>= 4; + } else { + rc = 0; + actual = global_request; + } + + if (rc == 0) { + if (actual != global_request) { + printk(KERN_ERR + "%s: prev global %x, new global %x, actual %x, request %x, others_request %x\n", + __func__, + g_state.global_request, + global_request, actual, request, others_request); + /* A failure */ + BUG_ON((others_request & actual) + != others_request); + request &= actual; + rc = -EIO; + } + + g_state.global_request = actual; + g_state.client_request[handle] = + request; + } + } + } + up(&g_state.mutex); + } else { + rc = -EINVAL; + } + DPRINTK("bcm_power_request -> %d\n", rc); + return rc; +} +EXPORT_SYMBOL_GPL(bcm_power_request); + +int bcm_power_close(BCM_POWER_HANDLE_T handle) +{ + int rc; + + DPRINTK("bcm_power_close(%d)\n", handle); + + rc = bcm_power_request(handle, BCM_POWER_NONE); + if (rc == 0) + g_state.client_request[handle] = BCM_POWER_NOCLIENT; + + return rc; +} +EXPORT_SYMBOL_GPL(bcm_power_close); + +static int __init bcm_power_init(void) +{ +#if defined(BCM_POWER_ALWAYS_ON) + BCM_POWER_HANDLE_T always_on_handle; +#endif + int rc = 0; + int i; + + printk(KERN_INFO "bcm_power: Broadcom power driver\n"); + + for (i = 0; i < BCM_POWER_MAXCLIENTS; i++) + g_state.client_request[i] = BCM_POWER_NOCLIENT; + + sema_init(&g_state.client_mutex, 1); + sema_init(&g_state.mutex, 1); + + g_state.global_request = 0; + +#if defined(BCM_POWER_ALWAYS_ON) + if (BCM_POWER_ALWAYS_ON) { + bcm_power_open(&always_on_handle); + bcm_power_request(always_on_handle, BCM_POWER_ALWAYS_ON); + } +#endif + + return rc; +} + +static void __exit bcm_power_exit(void) +{ + bcm_mailbox_write(MBOX_CHAN_POWER, 0); +} + +arch_initcall(bcm_power_init); /* Initialize early */ +module_exit(bcm_power_exit); + +MODULE_AUTHOR("Phil Elwell"); +MODULE_DESCRIPTION("Interface to BCM2708 power management"); +MODULE_LICENSE("GPL"); --- /dev/null +++ b/arch/arm/mach-bcm2708/vc_mem.c @@ -0,0 +1,467 @@ +/***************************************************************************** +* Copyright 2010 - 2011 Broadcom Corporation. All rights reserved. +* +* Unless you and Broadcom execute a separate written software license +* agreement governing use of this software, this software is licensed to you +* under the terms of the GNU General Public License version 2, available at +* http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). +* +* Notwithstanding the above, under no circumstances may you combine this +* software in any way with any other Broadcom software provided under a +* license other than the GPL, without Broadcom's express prior written +* consent. +*****************************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_ARCH_KONA +#include +#elif CONFIG_ARCH_BCM2708 +#else +#include +#endif + +#include "mach/vc_mem.h" +//#include "interface/vchiq_arm/vchiq_connected.h" + +#define DRIVER_NAME "vc-mem" + +// Uncomment to enable debug logging +//#define ENABLE_DBG + +#if defined(ENABLE_DBG) +#define LOG_DBG( fmt, ... ) printk( KERN_INFO fmt "\n", ##__VA_ARGS__ ) +#else +#define LOG_DBG( fmt, ... ) +#endif +#define LOG_ERR( fmt, ... ) printk( KERN_ERR fmt "\n", ##__VA_ARGS__ ) + +// Device (/dev) related variables +static dev_t vc_mem_devnum = 0; +static struct class *vc_mem_class = NULL; +static struct cdev vc_mem_cdev; +static int vc_mem_inited = 0; + +// Proc entry +static struct proc_dir_entry *vc_mem_proc_entry; + +/* + * Videocore memory addresses and size + * + * Drivers that wish to know the videocore memory addresses and sizes should + * use these variables instead of the MM_IO_BASE and MM_ADDR_IO defines in + * headers. This allows the other drivers to not be tied down to a a certain + * address/size at compile time. + * + * In the future, the goal is to have the videocore memory virtual address and + * size be calculated at boot time rather than at compile time. The decision of + * where the videocore memory resides and its size would be in the hands of the + * bootloader (and/or kernel). When that happens, the values of these variables + * would be calculated and assigned in the init function. + */ +#ifdef CONFIG_ARCH_KONA + +#include +unsigned long mm_vc_mem_phys_addr = VC_EMI; + +#elif CONFIG_ARCH_BCM2708 + +// in the 2835 VC in mapped above ARM, but ARM has full access to VC space +unsigned long mm_vc_mem_phys_addr = 0x00000000; + +#else + +#include +unsigned long mm_vc_mem_phys_addr = MM_ADDR_IO_VC_EMI; + +#endif + +unsigned int mm_vc_mem_size = 0; + +EXPORT_SYMBOL(mm_vc_mem_phys_addr); +EXPORT_SYMBOL(mm_vc_mem_size); + +/**************************************************************************** +* +* vc_mem_open +* +***************************************************************************/ + +static int +vc_mem_open(struct inode *inode, struct file *file) +{ + (void) inode; + (void) file; + + LOG_DBG("%s: called file = 0x%p", __func__, file); + + return 0; +} + +/**************************************************************************** +* +* vc_mem_release +* +***************************************************************************/ + +static int +vc_mem_release(struct inode *inode, struct file *file) +{ + (void) inode; + (void) file; + + LOG_DBG("%s: called file = 0x%p", __func__, file); + + return 0; +} + +/**************************************************************************** +* +* vc_mem_get_size +* +***************************************************************************/ + +static void +vc_mem_get_size(void) +{ +#ifdef CONFIG_ARCH_BCM2708 + mm_vc_mem_size = 256 * 1024 * 1024; // Static for now +#else + CHAL_IPC_HANDLE ipc_handle; + uint32_t wakeup_register; + + // Get the videocore memory size from the IPC mailbox if not yet + // assigned. + if (mm_vc_mem_size == 0) { + ipc_handle = chal_ipc_config(NULL); + if (ipc_handle == NULL) { + LOG_ERR("%s: failed to get IPC handlle", __func__); + return; + } + + chal_ipc_query_wakeup_vc(ipc_handle, &wakeup_register); + if ((wakeup_register & ~1) == 0) { + LOG_DBG("%s: videocore not yet loaded, skipping...", + __func__); + } else { + if (chal_ipc_read_mailbox(ipc_handle, + IPC_MAILBOX_ID_0, + &mm_vc_mem_size) != + BCM_SUCCESS) { + LOG_ERR("%s: failed to read from IPC mailbox", + __func__); + } + } + } +#endif +} + +/**************************************************************************** +* +* vc_mem_get_current_size +* +***************************************************************************/ + +int +vc_mem_get_current_size(void) +{ + vc_mem_get_size(); + return mm_vc_mem_size; +} + +EXPORT_SYMBOL_GPL(vc_mem_get_current_size); + +/**************************************************************************** +* +* vc_mem_ioctl +* +***************************************************************************/ + +static long +vc_mem_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + int rc = 0; + + (void) cmd; + (void) arg; + + LOG_DBG("%s: called file = 0x%p", __func__, file); + + switch (cmd) { + case VC_MEM_IOC_MEM_PHYS_ADDR: + { + LOG_DBG("%s: VC_MEM_IOC_MEM_PHYS_ADDR=0x%p", + __func__, (void *) mm_vc_mem_phys_addr); + + if (copy_to_user((void *) arg, &mm_vc_mem_phys_addr, + sizeof (mm_vc_mem_phys_addr)) != 0) { + rc = -EFAULT; + } + break; + } + case VC_MEM_IOC_MEM_SIZE: + { + // Get the videocore memory size first + vc_mem_get_size(); + + LOG_DBG("%s: VC_MEM_IOC_MEM_SIZE=%u", __func__, + mm_vc_mem_size); + + if (copy_to_user((void *) arg, &mm_vc_mem_size, + sizeof (mm_vc_mem_size)) != 0) { + rc = -EFAULT; + } + break; + } + default: + { + return -ENOTTY; + } + } + LOG_DBG("%s: file = 0x%p returning %d", __func__, file, rc); + + return rc; +} + +/**************************************************************************** +* +* vc_mem_mmap +* +***************************************************************************/ + +static int +vc_mem_mmap(struct file *filp, struct vm_area_struct *vma) +{ + int rc = 0; + unsigned long length = vma->vm_end - vma->vm_start; + unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; + + LOG_DBG("%s: vm_start = 0x%08lx vm_end = 0x%08lx vm_pgoff = 0x%08lx", + __func__, (long) vma->vm_start, (long) vma->vm_end, + (long) vma->vm_pgoff); + + if (offset + length > mm_vc_mem_size) { + LOG_ERR("%s: length %ld is too big", __func__, length); + return -EINVAL; + } + // Do not cache the memory map + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + + rc = remap_pfn_range(vma, vma->vm_start, + (mm_vc_mem_phys_addr >> PAGE_SHIFT) + + vma->vm_pgoff, length, vma->vm_page_prot); + if (rc != 0) { + LOG_ERR("%s: remap_pfn_range failed (rc=%d)", __func__, rc); + } + + return rc; +} + +/**************************************************************************** +* +* File Operations for the driver. +* +***************************************************************************/ + +static const struct file_operations vc_mem_fops = { + .owner = THIS_MODULE, + .open = vc_mem_open, + .release = vc_mem_release, + .unlocked_ioctl = vc_mem_ioctl, + .mmap = vc_mem_mmap, +}; + +/**************************************************************************** +* +* vc_mem_proc_read +* +***************************************************************************/ + +static int +vc_mem_proc_read(char *buf, char **start, off_t offset, int count, int *eof, + void *data) +{ + char *p = buf; + + (void) start; + (void) count; + (void) data; + + if (offset > 0) { + *eof = 1; + return 0; + } + // Get the videocore memory size first + vc_mem_get_size(); + + p += sprintf(p, "Videocore memory:\n"); + if (mm_vc_mem_phys_addr != 0) + p += sprintf(p, " Physical address: 0x%p\n", + (void *) mm_vc_mem_phys_addr); + else + p += sprintf(p, " Physical address: 0x00000000\n"); + p += sprintf(p, " Length (bytes): %u\n", mm_vc_mem_size); + + *eof = 1; + return p - buf; +} + +/**************************************************************************** +* +* vc_mem_proc_write +* +***************************************************************************/ + +static int +vc_mem_proc_write(struct file *file, const char __user * buffer, + unsigned long count, void *data) +{ + int rc = -EFAULT; + char input_str[10]; + + memset(input_str, 0, sizeof (input_str)); + + if (count > sizeof (input_str)) { + LOG_ERR("%s: input string length too long", __func__); + goto out; + } + + if (copy_from_user(input_str, buffer, count - 1)) { + LOG_ERR("%s: failed to get input string", __func__); + goto out; + } + + if (strncmp(input_str, "connect", strlen("connect")) == 0) { + // Get the videocore memory size from the videocore + vc_mem_get_size(); + } + + out: + return rc; +} + +/**************************************************************************** +* +* vc_mem_connected_init +* +* This function is called once the videocore has been connected. +* +***************************************************************************/ + +void +vc_mem_connected_init(void) +{ + int rc = -EFAULT; + struct device *dev; + + LOG_DBG("%s: called", __func__); + + vc_mem_get_size(); + + printk("vc-mem: mm_vc_mem_phys_addr = 0x%08lx\n", mm_vc_mem_phys_addr); + printk("vc-mem: mm_vc_mem_size = 0x%08x (%u MiB)\n", + mm_vc_mem_size, mm_vc_mem_size / (1024 * 1024)); + + if ((rc = alloc_chrdev_region(&vc_mem_devnum, 0, 1, DRIVER_NAME)) < 0) { + LOG_ERR("%s: alloc_chrdev_region failed (rc=%d)", __func__, rc); + goto out_err; + } + + cdev_init(&vc_mem_cdev, &vc_mem_fops); + if ((rc = cdev_add(&vc_mem_cdev, vc_mem_devnum, 1)) != 0) { + LOG_ERR("%s: cdev_add failed (rc=%d)", __func__, rc); + goto out_unregister; + } + + vc_mem_class = class_create(THIS_MODULE, DRIVER_NAME); + if (IS_ERR(vc_mem_class)) { + rc = PTR_ERR(vc_mem_class); + LOG_ERR("%s: class_create failed (rc=%d)", __func__, rc); + goto out_cdev_del; + } + + dev = device_create(vc_mem_class, NULL, vc_mem_devnum, NULL, + DRIVER_NAME); + if (IS_ERR(dev)) { + rc = PTR_ERR(dev); + LOG_ERR("%s: device_create failed (rc=%d)", __func__, rc); + goto out_class_destroy; + } + + vc_mem_proc_entry = create_proc_entry(DRIVER_NAME, 0444, NULL); + if (vc_mem_proc_entry == NULL) { + rc = -EFAULT; + LOG_ERR("%s: create_proc_entry failed", __func__); + goto out_device_destroy; + } + vc_mem_proc_entry->read_proc = vc_mem_proc_read; + vc_mem_proc_entry->write_proc = vc_mem_proc_write; + + vc_mem_inited = 1; + return; + + out_device_destroy: + device_destroy(vc_mem_class, vc_mem_devnum); + + out_class_destroy: + class_destroy(vc_mem_class); + vc_mem_class = NULL; + + out_cdev_del: + cdev_del(&vc_mem_cdev); + + out_unregister: + unregister_chrdev_region(vc_mem_devnum, 1); + + out_err: + return; +} + +/**************************************************************************** +* +* vc_mem_init +* +***************************************************************************/ + +static int __init +vc_mem_init(void) +{ + printk(KERN_INFO "vc-mem: Videocore memory driver\n"); + + //vchiq_add_connected_callback(vc_mem_connected_init); + + return 0; +} + +/**************************************************************************** +* +* vc_mem_exit +* +***************************************************************************/ + +static void __exit +vc_mem_exit(void) +{ + LOG_DBG("%s: called", __func__); + + if (vc_mem_inited) { + remove_proc_entry(vc_mem_proc_entry->name, NULL); + device_destroy(vc_mem_class, vc_mem_devnum); + class_destroy(vc_mem_class); + cdev_del(&vc_mem_cdev); + unregister_chrdev_region(vc_mem_devnum, 1); + } +} + +module_init(vc_mem_init); +module_exit(vc_mem_exit); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Broadcom Corporation"); --- /dev/null +++ b/arch/arm/mach-bcm2708/vcio.c @@ -0,0 +1,309 @@ +/* + * linux/arch/arm/mach-bcm2708/vcio.c + * + * Copyright (C) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This device provides a shared mechanism for writing to the mailboxes, + * semaphores, doorbells etc. that are shared between the ARM and the + * VideoCore processor + */ + +#if defined(CONFIG_SERIAL_BCM_MBOX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ) +#define SUPPORT_SYSRQ +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +#include +#include + +#define DRIVER_NAME BCM_VCIO_DRIVER_NAME + +/* ---------------------------------------------------------------------- + * Mailbox + * -------------------------------------------------------------------- */ + +/* offsets from a mail box base address */ +#define MAIL_WRT 0x00 /* write - and next 4 words */ +#define MAIL_RD 0x00 /* read - and next 4 words */ +#define MAIL_POL 0x10 /* read without popping the fifo */ +#define MAIL_SND 0x14 /* sender ID (bottom two bits) */ +#define MAIL_STA 0x18 /* status */ +#define MAIL_CNF 0x1C /* configuration */ + +#define MBOX_MSG(chan, data28) (((data28) & ~0xf) | ((chan) & 0xf)) +#define MBOX_MSG_LSB(chan, data28) (((data28) << 4) | ((chan) & 0xf)) +#define MBOX_CHAN(msg) ((msg) & 0xf) +#define MBOX_DATA28(msg) ((msg) & ~0xf) +#define MBOX_DATA28_LSB(msg) (((uint32_t)msg) >> 4) + +#define MBOX_MAGIC 0xd0d0c0de + +struct vc_mailbox { + struct device *dev; /* parent device */ + void __iomem *status; + void __iomem *config; + void __iomem *read; + void __iomem *write; + uint32_t msg[MBOX_CHAN_COUNT]; + struct semaphore sema[MBOX_CHAN_COUNT]; + uint32_t magic; +}; + +static void mbox_init(struct vc_mailbox *mbox_out, struct device *dev, + uint32_t addr_mbox) +{ + int i; + + mbox_out->dev = dev; + mbox_out->status = __io_address(addr_mbox + MAIL_STA); + mbox_out->config = __io_address(addr_mbox + MAIL_CNF); + mbox_out->read = __io_address(addr_mbox + MAIL_RD); + /* Write to the other mailbox */ + mbox_out->write = + __io_address((addr_mbox ^ ARM_0_MAIL0_WRT ^ ARM_0_MAIL1_WRT) + + MAIL_WRT); + + for (i = 0; i < MBOX_CHAN_COUNT; i++) { + mbox_out->msg[i] = 0; + sema_init(&mbox_out->sema[i], 0); + } + + /* Enable the interrupt on data reception */ + writel(ARM_MC_IHAVEDATAIRQEN, mbox_out->config); + + mbox_out->magic = MBOX_MAGIC; +} + +static int mbox_write(struct vc_mailbox *mbox, unsigned chan, uint32_t data28) +{ + int rc; + + if (mbox->magic != MBOX_MAGIC) + rc = -EINVAL; + else { + /* wait for the mailbox FIFO to have some space in it */ + while (0 != (readl(mbox->status) & ARM_MS_FULL)) + cpu_relax(); + + writel(MBOX_MSG(chan, data28), mbox->write); + rc = 0; + } + return rc; +} + +static int mbox_read(struct vc_mailbox *mbox, unsigned chan, uint32_t *data28) +{ + int rc; + + if (mbox->magic != MBOX_MAGIC) + rc = -EINVAL; + else { + if (mbox->msg[chan] || + (down_interruptible(&mbox->sema[chan]) == 0)) { + *data28 = MBOX_DATA28(mbox->msg[chan]); + mbox->msg[chan] = 0; + rc = 0; + } else { + /* The wait was interrupted */ + rc = -EINTR; + } + } + return rc; +} + +static irqreturn_t mbox_irq(int irq, void *dev_id) +{ + /* wait for the mailbox FIFO to have some data in it */ + struct vc_mailbox *mbox = (struct vc_mailbox *) dev_id; + int status = readl(mbox->status); + int ret = IRQ_NONE; + + while (!(status & ARM_MS_EMPTY)) { + uint32_t msg = readl(mbox->read); + int chan = MBOX_CHAN(msg); + if (chan < MBOX_CHAN_COUNT) { + if (mbox->msg[chan]) { + /* Overflow */ + printk(KERN_ERR DRIVER_NAME + ": mbox chan %d overflow - drop %08x\n", + chan, msg); + } else { + mbox->msg[chan] = (msg | 0xf); + up(&mbox->sema[chan]); + } + } else { + printk(KERN_ERR DRIVER_NAME + ": invalid channel selector (msg %08x)\n", msg); + } + ret = IRQ_HANDLED; + status = readl(mbox->status); + } + return ret; +} + +static struct irqaction mbox_irqaction = { + .name = "ARM Mailbox IRQ", + .flags = IRQF_DISABLED | IRQF_IRQPOLL, + .handler = mbox_irq, +}; + +/* ---------------------------------------------------------------------- + * Mailbox Methods + * -------------------------------------------------------------------- */ + +static struct device *mbox_dev; /* we assume there's only one! */ + +static int dev_mbox_write(struct device *dev, unsigned chan, uint32_t data28) +{ + int rc; + + struct vc_mailbox *mailbox = dev_get_drvdata(dev); + device_lock(dev); + rc = mbox_write(mailbox, chan, data28); + device_unlock(dev); + + return rc; +} + +static int dev_mbox_read(struct device *dev, unsigned chan, uint32_t *data28) +{ + int rc; + + struct vc_mailbox *mailbox = dev_get_drvdata(dev); + device_lock(dev); + rc = mbox_read(mailbox, chan, data28); + device_unlock(dev); + + return rc; +} + +extern int bcm_mailbox_write(unsigned chan, uint32_t data28) +{ + if (mbox_dev) + return dev_mbox_write(mbox_dev, chan, data28); + else + return -ENODEV; +} +EXPORT_SYMBOL_GPL(bcm_mailbox_write); + +extern int bcm_mailbox_read(unsigned chan, uint32_t *data28) +{ + if (mbox_dev) + return dev_mbox_read(mbox_dev, chan, data28); + else + return -ENODEV; +} +EXPORT_SYMBOL_GPL(bcm_mailbox_read); + +static void dev_mbox_register(const char *dev_name, struct device *dev) +{ + mbox_dev = dev; +} + +/* ---------------------------------------------------------------------- + * Platform Device for Mailbox + * -------------------------------------------------------------------- */ + +static int bcm_vcio_probe(struct platform_device *pdev) +{ + int ret = 0; + struct vc_mailbox *mailbox; + + mailbox = kzalloc(sizeof(*mailbox), GFP_KERNEL); + if (NULL == mailbox) { + printk(KERN_ERR DRIVER_NAME ": failed to allocate " + "mailbox memory\n"); + ret = -ENOMEM; + } else { + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + printk(KERN_ERR DRIVER_NAME ": failed to obtain memory " + "resource\n"); + ret = -ENODEV; + kfree(mailbox); + } else { + /* should be based on the registers from res really */ + mbox_init(mailbox, &pdev->dev, ARM_0_MAIL0_RD); + + platform_set_drvdata(pdev, mailbox); + dev_mbox_register(DRIVER_NAME, &pdev->dev); + + mbox_irqaction.dev_id = mailbox; + setup_irq(IRQ_ARM_MAILBOX, &mbox_irqaction); + printk(KERN_INFO DRIVER_NAME ": mailbox at %p\n", + __io_address(ARM_0_MAIL0_RD)); + } + } + return ret; +} + +static int bcm_vcio_remove(struct platform_device *pdev) +{ + struct vc_mailbox *mailbox = platform_get_drvdata(pdev); + + platform_set_drvdata(pdev, NULL); + kfree(mailbox); + + return 0; +} + +static struct platform_driver bcm_mbox_driver = { + .probe = bcm_vcio_probe, + .remove = bcm_vcio_remove, + + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init bcm_mbox_init(void) +{ + int ret; + + printk(KERN_INFO "mailbox: Broadcom VideoCore Mailbox driver\n"); + + ret = platform_driver_register(&bcm_mbox_driver); + if (ret != 0) { + printk(KERN_ERR DRIVER_NAME ": failed to register " + "on platform\n"); + } + + return ret; +} + +static void __exit bcm_mbox_exit(void) +{ + platform_driver_unregister(&bcm_mbox_driver); +} + +arch_initcall(bcm_mbox_init); /* Initialize early */ +module_exit(bcm_mbox_exit); + +MODULE_AUTHOR("Gray Girling"); +MODULE_DESCRIPTION("ARM I/O to VideoCore processor"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bcm-mbox"); --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -390,7 +390,7 @@ config CPU_PJ4 # ARMv6 config CPU_V6 - bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX + bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX || MACH_BCM2708 select CPU_32v6 select CPU_ABRT_EV6 select CPU_PABRT_V6 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -855,9 +855,11 @@ do_alignment(unsigned long addr, unsigne case 0x08000000: /* ldm or stm, or thumb-2 32bit instruction */ if (thumb2_32b) handler = do_alignment_t32_to_handler(&instr, regs, &offset); - else + else { + offset.un = 0; /* to keep compiler happy */ handler = do_alignment_ldmstm; - break; + } + break; default: goto bad; --- a/arch/arm/mm/proc-v6.S +++ b/arch/arm/mm/proc-v6.S @@ -73,10 +73,19 @@ ENDPROC(cpu_v6_reset) * * IRQs are already disabled. */ + +/* See jira SW-5991 for details of this workaround */ ENTRY(cpu_v6_do_idle) - mov r1, #0 - mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode - mcr p15, 0, r1, c7, c0, 4 @ wait for interrupt + .align 5 + mov r1, #2 +1: subs r1, #1 + nop + mcreq p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode + mcreq p15, 0, r1, c7, c0, 4 @ wait for interrupt + nop + nop + nop + bne 1b mov pc, lr ENTRY(cpu_v6_dcache_clean_area) --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -229,6 +229,27 @@ config MMC_SDHCI_S3C_DMA YMMV. +config MMC_SDHCI_BCM2708 + tristate "SDHCI support on BCM2708" + depends on MMC_SDHCI && MACH_BCM2708 + select MMC_SDHCI_IO_ACCESSORS + help + This selects the Secure Digital Host Controller Interface (SDHCI) + often referrered to as the eMMC block. + + If you have a controller with this interface, say Y or M here. + + If unsure, say N. + +config MMC_SDHCI_BCM2708_DMA + bool "DMA support on BCM2708 Arasan controller" + depends on MMC_SDHCI_BCM2708 && EXPERIMENTAL + help + Enable DMA support on the Arasan SDHCI controller in Broadcom 2708 + based chips. + + If unsure, say N. + config MMC_OMAP tristate "TI OMAP Multimedia Card Interface support" depends on ARCH_OMAP @@ -296,6 +317,14 @@ config MMC_ATMELMCI If unsure, say N. endchoice +config MMC_BCM2708 + tristate "BCM2708 Multimedia Card Interface support" + help + This selects the BCM2708 Multimedia Card Interface driver. If + you have a BCM2708 platform with a Multimedia Card + slot, say Y or M here. + + If unsure, say N. config MMC_ATMELMCI_DMA bool "Atmel MCI DMA support" --- a/drivers/mmc/host/Makefile +++ b/drivers/mmc/host/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_MMC_SDHCI_PXAV3) += sdhci-p obj-$(CONFIG_MMC_SDHCI_PXAV2) += sdhci-pxav2.o obj-$(CONFIG_MMC_SDHCI_S3C) += sdhci-s3c.o obj-$(CONFIG_MMC_SDHCI_SPEAR) += sdhci-spear.o +obj-$(CONFIG_MMC_SDHCI_BCM2708) += sdhci-bcm2708.o obj-$(CONFIG_MMC_WBSD) += wbsd.o obj-$(CONFIG_MMC_AU1X) += au1xmmc.o obj-$(CONFIG_MMC_OMAP) += omap.o @@ -53,6 +54,8 @@ obj-$(CONFIG_MMC_SDHCI_TEGRA) += sdhci- obj-$(CONFIG_MMC_SDHCI_OF_ESDHC) += sdhci-of-esdhc.o obj-$(CONFIG_MMC_SDHCI_OF_HLWD) += sdhci-of-hlwd.o +obj-$(CONFIG_MMC_BCM2708) += bcm2708_mci.o + ifeq ($(CONFIG_CB710_DEBUG),y) CFLAGS-cb710-mmc += -DDEBUG endif --- /dev/null +++ b/drivers/mmc/host/bcm2708_mci.c @@ -0,0 +1,889 @@ +/* + * linux/drivers/mmc/host/bcm2708_mci.c - Broadcom BCM2708 MCI driver + * + * Copyright (C) 2010 Broadcom, 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 version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +//#include + +#include + +#include "bcm2708_mci.h" + +#define DRIVER_NAME "bcm2708_mci" + +//#define PIO_DEBUG +#ifdef PIO_DEBUG +#define DBG(host,fmt,args...) \ + printk(KERN_ERR"%s: %s: " fmt, mmc_hostname(host->mmc), __func__ , args) +#else +#define DBG(host,fmt,args...) \ + pr_debug("%s: %s: " fmt, mmc_hostname(host->mmc), __func__ , args) +#endif + +#define USE_DMA +#define USE_DMA_IRQ + +#ifdef USE_DMA +#define SDHOST_DMA_CHANNEL 5 +#endif + +#define BCM2708_DMA_ACTIVE (1 << 0) +#define BCM2708_DMA_INT (1 << 2) + +#define BCM2708_DMA_INT_EN (1 << 0) +#define BCM2708_DMA_D_INC (1 << 4) +#define BCM2708_DMA_D_WIDTH (1 << 5) +#define BCM2708_DMA_D_DREQ (1 << 6) +#define BCM2708_DMA_S_INC (1 << 8) +#define BCM2708_DMA_S_WIDTH (1 << 9) +#define BCM2708_DMA_S_DREQ (1 << 10) + +#define BCM2708_DMA_PER_MAP(x) ((x) << 16) + +#define BCM2708_DMA_DREQ_SDHOST 13 + +#define BCM2708_DMA_CS 0x00 +#define BCM2708_DMA_ADDR 0x04 + +static void dump_sd_regs(void * mmc_base ); +static int bcm2708_mci_reset(struct bcm2708_mci_host *host); + +static void do_command(void __iomem *base, u32 c, u32 a) +{ + u32 cmdsts = 0; + writel(a, base + BCM2708_MCI_ARGUMENT); + writel(c | BCM2708_MCI_ENABLE, base + BCM2708_MCI_COMMAND); + + /* check for error and command done */ + cmdsts = readl(base + BCM2708_MCI_COMMAND); + while ((cmdsts & BCM2708_MCI_ENABLE) && (!(cmdsts & BCM2708_MCI_FAIL_FLAG))) + cmdsts = readl(base + BCM2708_MCI_COMMAND); + if (cmdsts & BCM2708_MCI_FAIL_FLAG) { + printk(KERN_DEBUG"%s: Command %d failed with arg %d\n", __func__, c, a); + dump_sd_regs(base); + } +} + +//static void discard_words(void __iomem *base, int words) +//{ +// int i; +// for (i = 0; i < words; i++) { +// while (!(readl(base + BCM2708_MCI_STATUS) & BCM2708_MCI_DATAFLAG)); +// readl(base + BCM2708_MCI_DATA); +// } +//} + +#define CACHE_LINE_MASK 31 + +static int suitable_for_dma(struct scatterlist *sg_ptr, int sg_len) +{ + int i; + + for (i = 0; i < sg_len; i++) { + if (sg_ptr[i].offset & CACHE_LINE_MASK || sg_ptr[i].length & CACHE_LINE_MASK) + return 0; + } + + return 1; +} + +static void wait_for_complete(struct bcm2708_mci_host *host, + void __iomem *mmc_base) +{ +#ifdef USE_SDHOST_IRQ +#error not implemented yet +#else + while ((readl(mmc_base + BCM2708_MCI_STATUS) & + (BCM2708_MCI_HSTS_BUSY | BCM2708_MCI_HSTS_BLOCK)) == 0) + continue; + + writel(BCM2708_MCI_HSTS_BUSY | BCM2708_MCI_HSTS_BLOCK, + mmc_base + BCM2708_MCI_STATUS); +#endif +} + +static void dump_sd_regs(void * mmc_base ) +{ + printk(KERN_DEBUG"Registers:\n"); + printk(KERN_DEBUG"SDCMD:0x%x\n", readl(mmc_base + BCM2708_MCI_COMMAND)); + printk(KERN_DEBUG"SDARG:0x%x\n", readl(mmc_base + BCM2708_MCI_ARGUMENT)); + printk(KERN_DEBUG"SDTOUT:0x%x\n", readl(mmc_base + BCM2708_MCI_TIMEOUT)); + printk(KERN_DEBUG"SDCDIV:0x%x\n", readl(mmc_base + BCM2708_MCI_CLKDIV)); + printk(KERN_DEBUG"SDRSP0:0x%x\n", readl(mmc_base + BCM2708_MCI_RESPONSE0)); + printk(KERN_DEBUG"SDRSP1:0x%x\n", readl(mmc_base + BCM2708_MCI_RESPONSE1)); + printk(KERN_DEBUG"SDRSP2:0x%x\n", readl(mmc_base + BCM2708_MCI_RESPONSE2)); + printk(KERN_DEBUG"SDRSP3:0x%x\n", readl(mmc_base + BCM2708_MCI_RESPONSE3)); + printk(KERN_DEBUG"SDHSTS:0x%x\n", readl(mmc_base + BCM2708_MCI_STATUS)); + printk(KERN_DEBUG"SDPO:0x%x\n", readl(mmc_base + BCM2708_MCI_VDD)); + printk(KERN_DEBUG"SDEDM:0x%x\n", readl(mmc_base + BCM2708_MCI_EDM)); + printk(KERN_DEBUG"SDHCFG:0x%x\n", readl(mmc_base + BCM2708_MCI_HOSTCONFIG)); + printk(KERN_DEBUG"SDHBCT:0x%x\n", readl(mmc_base + BCM2708_MCI_HBCT)); + //printk(KERN_ERR"SDDATA:0x%x\n", readl(mmc_base + BCM2708_MCI_DATA)); + printk(KERN_DEBUG"SDHBLC:0x%x\n", readl(mmc_base + BCM2708_MCI_HBLC)); +} + + +static void +bcm2708_mci_start_command(struct bcm2708_mci_host *host, struct mmc_command *cmd, struct mmc_data *data) +{ + void __iomem *mmc_base = host->mmc_base; + void __iomem *dma_base = host->dma_base; + u32 status; + u32 c; + int redo = 0; + + DBG(host, "op %02x arg %08x flags %08x\n", + cmd->opcode, cmd->arg, cmd->flags); + +back: + + /* + * clear the controller status register + */ + + writel(-1, mmc_base + BCM2708_MCI_STATUS); + + /* + * build the command register write, incorporating no + * response, long response, busy, read and write flags + */ + + c = cmd->opcode; + if (cmd->flags & MMC_RSP_PRESENT) { + if (cmd->flags & MMC_RSP_136) + c |= BCM2708_MCI_LONGRESP; + } else + c |= BCM2708_MCI_NORESP; + if (cmd->flags & MMC_RSP_BUSY) + c |= BCM2708_MCI_BUSY; + + if (data) { + if (data->flags & MMC_DATA_READ) + c |= BCM2708_MCI_READ; + else + c |= BCM2708_MCI_WRITE; + + DBG(host, "BYTECOUT %d BLOCKCOUNT %d .. ",readl(mmc_base + BCM2708_MCI_HBCT), readl(mmc_base + BCM2708_MCI_HBLC)); + DBG(host, "set blocksize to %d\n", data->blksz); + DBG(host, "set blockcnt to %d\n", data->blocks); + writel( data->blksz, mmc_base + BCM2708_MCI_HBCT); + writel(data->blocks, mmc_base + BCM2708_MCI_HBLC); + } + + /* + * run the command and wait for it to complete + */ + + DBG(host, "executing command=%d\n", cmd->opcode); + + do_command(mmc_base, c, cmd->arg); + + DBG(host, "done cmd=%d\n", cmd->opcode); + + if (c & BCM2708_MCI_BUSY) { + + DBG(host, "waiting for command(%d) to complete\n", cmd->opcode); + wait_for_complete(host, mmc_base); + DBG(host, "done waiting for command(%d)\n", cmd->opcode); + } + + /* + * retrieve the response and error (if any) + */ + + status = readl(mmc_base + BCM2708_MCI_STATUS); + + if (cmd->flags & MMC_RSP_136) { + cmd->resp[3] = readl(mmc_base + BCM2708_MCI_RESPONSE0); + cmd->resp[2] = readl(mmc_base + BCM2708_MCI_RESPONSE1); + cmd->resp[1] = readl(mmc_base + BCM2708_MCI_RESPONSE2); + cmd->resp[0] = readl(mmc_base + BCM2708_MCI_RESPONSE3); + } else { + cmd->resp[0] = readl(mmc_base + BCM2708_MCI_RESPONSE0); + } + + if (status & BCM2708_MCI_CMDTIMEOUT) { + printk(KERN_DEBUG "mmc driver saw timeout with opcode = %d, data = 0x%08x, timeout = %d", cmd->opcode, (unsigned int)data, readl(mmc_base + BCM2708_MCI_TIMEOUT)); + if (data) + printk(KERN_DEBUG " data->sg_len = %d\n", data->sg_len); + else + printk(KERN_DEBUG "\n"); + if (!redo) { + printk(KERN_DEBUG "redo\n"); + redo = 1; + goto back; + } else + cmd->error = -ETIMEDOUT; + } + + /* + * pump data if necessary + */ + + if (data) { + unsigned int sg_len = data->sg_len; + struct scatterlist *sg_ptr = data->sg; + + data->bytes_xfered = 0; + +#ifdef USE_DMA + if (suitable_for_dma(sg_ptr, sg_len)) { + int i, count = dma_map_sg(&host->dev->dev, sg_ptr, sg_len, data->flags & MMC_DATA_READ ? DMA_FROM_DEVICE : DMA_TO_DEVICE); + + for (i = 0; i < count; i++) { + BCM2708_DMA_CB_T *cb = &host->cb_base[i]; + + if (data->flags & MMC_DATA_READ) { + cb->info = BCM2708_DMA_PER_MAP(BCM2708_DMA_DREQ_SDHOST)|BCM2708_DMA_S_DREQ|BCM2708_DMA_D_WIDTH|BCM2708_DMA_D_INC; + cb->src = 0x7e202040; + cb->dst = sg_dma_address(&sg_ptr[i]); + } else { + cb->info = BCM2708_DMA_PER_MAP(BCM2708_DMA_DREQ_SDHOST)|BCM2708_DMA_S_WIDTH|BCM2708_DMA_S_INC|BCM2708_DMA_D_DREQ; + cb->src = sg_dma_address(&sg_ptr[i]); + cb->dst = 0x7e202040; + } + + cb->length = sg_dma_len(&sg_ptr[i]); + cb->stride = 0; + + if (i == count - 1) { +#ifdef USE_DMA_IRQ + cb->info |= BCM2708_DMA_INT_EN; +#endif + cb->next = 0; + } else + cb->next = host->cb_handle + (i + 1) * sizeof(BCM2708_DMA_CB_T); + + cb->pad[0] = 0; + cb->pad[1] = 0; + + data->bytes_xfered += sg_ptr[i].length; + } + + dsb(); // data barrier operation + + writel(host->cb_handle, dma_base + BCM2708_DMA_ADDR); + writel(BCM2708_DMA_ACTIVE, dma_base + BCM2708_DMA_CS); + +#ifdef USE_DMA_IRQ + down(&host->sem); +#else + while ((readl(dma_base + BCM2708_DMA_CS) & BCM2708_DMA_ACTIVE)); +#endif + dma_unmap_sg(&host->dev->dev, sg_ptr, sg_len, data->flags & MMC_DATA_READ ? DMA_FROM_DEVICE : DMA_TO_DEVICE); + } else +#endif + while (sg_len) { + unsigned long flags; + char *buffer; + u32 *ptr, *lim; + + DBG(host, "sg_len=%d sg_ptr=%p len=%d\n", sg_len, sg_ptr, sg_ptr->length); + + /* + * map the current scatter buffer + */ + + buffer = bcm2708_mci_kmap_atomic(sg_ptr, &flags); + + /* + * pump the data + */ + + ptr = (u32 *)(buffer); + lim = (u32 *)(buffer + sg_ptr->length); + + while (ptr < lim) + { +#ifdef PIO_DEBUG + unsigned int wait_count = 1; +#endif + while (!(readl(mmc_base + BCM2708_MCI_STATUS) & BCM2708_MCI_DATAFLAG)) + { +#ifdef PIO_DEBUG + wait_count++; + if ( 0 == (wait_count % 20000) ) { + + printk(KERN_ERR"Timeout waiting for data flag\n"); + dump_sd_regs(mmc_base); + } +#endif + } + + if (data->flags & MMC_DATA_READ) + *ptr++ = readl(mmc_base + BCM2708_MCI_DATA); + else + { +#ifdef PIO_DEBUG + uint32_t fifo_bytes, fifo_wait_count = 1; + + fifo_bytes = readl(mmc_base + BCM2708_MCI_EDM); + fifo_bytes = (fifo_bytes >> 4) & 0xf; + + while(fifo_bytes > 3) + { + fifo_wait_count++; + if ( 0 == (fifo_wait_count % 20000) ) { + printk(KERN_ERR"waiting for fifo_bytes < 3\n"); + dump_sd_regs(mmc_base); + } + + fifo_bytes = readl(mmc_base + BCM2708_MCI_EDM); + fifo_bytes = (fifo_bytes >> 4) & 0xf; + } + + BUG_ON(fifo_bytes > 3); +#endif + writel(*ptr++, mmc_base + BCM2708_MCI_DATA); + } + } + + DBG(host, "done reading/writing %d bytes from mmc\n", sg_ptr->length); + + + /* + * unmap the buffer + */ + + bcm2708_mci_kunmap_atomic(buffer, &flags); + + /* + * if we were reading, and we have completed this + * page, ensure that the data cache is coherent + */ + + if (data->flags & MMC_DATA_READ) + flush_dcache_page(sg_page(sg_ptr)); + + data->bytes_xfered += sg_ptr->length; + + sg_ptr++; + sg_len--; + } + +// if (host->is_acmd && cmd->opcode == SD_APP_SEND_SCR) +// discard_words(mmc_base, 126); +// if (host->is_acmd && cmd->opcode == SD_APP_SEND_NUM_WR_BLKS) +// discard_words(mmc_base, 127); +// if (!host->is_acmd && cmd->opcode == SD_SWITCH) +// discard_words(mmc_base, 112); + + if (data->stop) { + + DBG(host, "sending stop command %p\n", data->stop); + bcm2708_mci_start_command(host, data->stop, 0); + + while ((readl(mmc_base + BCM2708_MCI_STATUS) & + BCM2708_MCI_DATAFLAG)) + { + DBG(host, "error data flag still set read=%d bytes\n", sg_ptr->length); + printk(KERN_ERR"SDDATA:0x%x\n", readl(mmc_base + BCM2708_MCI_DATA)); + dump_sd_regs(mmc_base); + } + } + } + /* + * remember if we're an application command + */ + host->is_acmd = cmd->opcode == MMC_APP_CMD; +} + +static void bcm2708_mci_request(struct mmc_host *mmc, struct mmc_request *mrq) +{ + struct bcm2708_mci_host *host = mmc_priv(mmc); + + if (mrq->data && !is_power_of_2(mrq->data->blksz)) { + printk(KERN_ERR "%s: Unsupported block size (%d bytes)\n", + mmc_hostname(mmc), mrq->data->blksz); + mrq->cmd->error = -EINVAL; + mmc_request_done(mmc, mrq); + return; + } + + bcm2708_mci_start_command(host, mrq->cmd, mrq->data); + + mmc_request_done(host->mmc, mrq); +} + +static void bcm2708_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) +{ + + struct bcm2708_mci_host *host = mmc_priv(mmc); + void *mmc_base = host->mmc_base; + + + printk(KERN_DEBUG"%s: Want to set clock: %d width: %d\n", mmc_hostname(mmc), + ios->clock, ios->bus_width); + + if (ios->clock == 25000000 || ios->clock == 26000000) { + printk(KERN_DEBUG"%s setting clock div to 10 (8+2)\n", mmc_hostname(mmc)); + writel(0x8, mmc_base + BCM2708_MCI_CLKDIV); + } else if (ios->clock == 50000000 || ios->clock == 52000000) { + printk(KERN_DEBUG"%s setting clock div to 5 (3+2)\n", mmc_hostname(mmc)); + writel(0x3, mmc_base + BCM2708_MCI_CLKDIV); + } else { + // On init or unknown clock, we set the clock really low + printk(KERN_DEBUG"%s Setting clock div to 0x4e0\n", mmc_hostname(mmc)); + writel(0x4e0, mmc_base + BCM2708_MCI_CLKDIV); + } + + if (ios->bus_width) { + uint32_t hcfg; + hcfg = readl(mmc_base + BCM2708_MCI_HOSTCONFIG); + printk(KERN_DEBUG"%s setting bus width to %d\n", mmc_hostname(mmc), ios->bus_width); + + hcfg &= BCM2708_MCI_HOSTCONFIG_WIDEEXT_CLR; + hcfg |= (ios->bus_width == MMC_BUS_WIDTH_4) ? BCM2708_MCI_HOSTCONFIG_WIDEEXT_4BIT : 0; + + writel(hcfg, mmc_base + BCM2708_MCI_HOSTCONFIG); + } +} + +static int bcm2708_mci_get_cd(struct mmc_host *mmc) +{ + int present = -ENOSYS; + + struct bcm2708_mci_host *host = mmc_priv(mmc); + void *gpio_base = host->gpio_base; + + present = readl( (gpio_base + GP_LEV0) ); + + if ((present & (1<<29))==(1<<29)) + present = 0; + else + present = 1; + + printk(KERN_DEBUG"***sdcard present***=%d\n", present); + + // FIXME - For now force SD card present for 2835DK + present = 1; + return present; +} + +/* + * Handle completion of command and data transfers. + */ + +//static irqreturn_t bcm2708_mci_command_irq(int irq, void *dev_id) +//{ +// struct bcm2708_mci_host *host = dev_id; +// +// writel(BCM2708_DMA_INT, host->dma_base + BCM2708_DMA_CS); +// +// printk(KERN_ERR "irq\n"); +// +// return IRQ_RETVAL(0); +//} + +static irqreturn_t bcm2708_mci_sddet_irq(int irq, void *dev_id) +{ + struct bcm2708_mci_host *host = dev_id; + irqreturn_t handled = IRQ_NONE; + int present; + + present = bcm2708_mci_get_cd(host->mmc); + + if (present!=host->present) + { + host->present = present; + printk(KERN_DEBUG "SDDET IRQ: sdcard present: %d\n",present); + bcm2708_mci_reset(host); + mmc_detect_change(host->mmc, msecs_to_jiffies(500)); + } + + return IRQ_RETVAL(handled); +} + +#ifdef USE_DMA_IRQ +static irqreturn_t bcm2708_mci_data_irq(int irq, void *dev_id) +{ + struct bcm2708_mci_host *host = dev_id; + irqreturn_t handled = IRQ_NONE; + + if (0 != (BCM2708_DMA_INT & readl(host->dma_base + BCM2708_DMA_CS))) { + writel(BCM2708_DMA_INT, host->dma_base + BCM2708_DMA_CS); + dsb(); + handled = IRQ_HANDLED; + up(&host->sem); + } else { + printk(KERN_ERR"bcm2708_mci irq check failed !!\n"); + } + + return IRQ_RETVAL(handled); +} +#endif + +static const struct mmc_host_ops bcm2708_mci_ops = { + .request = bcm2708_mci_request, + .set_ios = bcm2708_mci_set_ios, + .get_cd = bcm2708_mci_get_cd, +}; + +static int bcm2708_mci_reset(struct bcm2708_mci_host *host) +{ + + void *mmc_base = host->mmc_base; + + // pin muxing/gpios is done by vcloader + + printk(KERN_DEBUG"%s:Resetting BCM2708 MCI Controller.\n", __func__ ); + + writel(0, mmc_base + BCM2708_MCI_COMMAND); + writel(0, mmc_base + BCM2708_MCI_ARGUMENT); + writel(0x00F00000, mmc_base + BCM2708_MCI_TIMEOUT); + writel(0, mmc_base + BCM2708_MCI_CLKDIV); + writel(0, mmc_base + BCM2708_MCI_STATUS); + writel(0, mmc_base + BCM2708_MCI_VDD); + writel(0, mmc_base + BCM2708_MCI_HOSTCONFIG); + writel(0, mmc_base + BCM2708_MCI_HBCT); + writel(0, mmc_base + BCM2708_MCI_HBLC); + + writel( BCM2708_MCI_HOSTCONFIG_SLOW_CARD | BCM2708_MCI_HOSTCONFIG_BUSY_IRPT_EN | + BCM2708_MCI_HOSTCONFIG_BLOCK_IRPT_EN | BCM2708_MCI_HOSTCONFIG_WIDE_INT_BUS, + mmc_base + BCM2708_MCI_HOSTCONFIG); + + // On A0 silicon it has been observed that the following must hold + // WRITE_THRESHOLD<=5 and READ_THRESHOLD<=WRITE_THRESHOLD+1 + // with the chip running at 150MHz (with the interface running @ 150/22 = 6.8 MHz) + // the second requirement suggests that the verilog does not properly separate the read / write FIFOs + // On V3XDS Read=2 & Write=6 + +#define READ_THRESHOLD 3 +#define WRITE_THRESHOLD 3 +#if 1 // !!! This is still required, without it we get CRC16 errors in data. + { + uint32_t temp; + temp = readl(mmc_base + BCM2708_MCI_EDM); + temp &= ~((0x1F<<14) | (0x1F<<9)); + temp |= (WRITE_THRESHOLD << 9) | (READ_THRESHOLD << 14); + writel(temp, mmc_base + BCM2708_MCI_EDM); + } +#endif + + // Power on delay + mdelay(10); + writel(BCM2708_MCI_VDD_ENABLE, mmc_base + BCM2708_MCI_VDD); + mdelay(10); + + return 0; +} + + +static int __devinit bcm2708_mci_probe(struct platform_device *pdev) +{ + struct mmc_host *mmc; + struct bcm2708_mci_host *host; + struct resource *mmc_res; + struct resource *dma_res; + struct resource *gpio_res; + struct resource *dat_res; + struct resource *sddet_res; + int ret; + + mmc = mmc_alloc_host(sizeof(struct bcm2708_mci_host), &pdev->dev); + if (!mmc) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "couldn't allocate mmc host\n"); + goto fail0; + } + + host = mmc_priv(mmc); + host->mmc = mmc; + + host->dev = pdev; + + sema_init(&host->sem, 0); + +#ifdef USE_DMA + host->cb_base = dma_alloc_writecombine(&pdev->dev, SZ_4K, &host->cb_handle, GFP_KERNEL); + if (!host->cb_base) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "couldn't allocate dma base\n"); + goto fail1; + } +#endif + + mmc_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mmc_res) { + ret = -ENXIO; + dev_dbg(&pdev->dev, "couldn't allocate mmc memory resource 0\n"); + goto fail2; + } + + if (!request_mem_region(mmc_res->start, mmc_res->end - mmc_res->start + 1, DRIVER_NAME)) { + ret = -EBUSY; + goto fail2; + } + + dma_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!dma_res) { + ret = -ENXIO; + dev_dbg(&pdev->dev, "couldn't allocate dma memory resource 1\n"); + goto fail3; + } + + /* + * Map I/O regions + */ + + host->mmc_base = ioremap(mmc_res->start, resource_size(mmc_res)); + if (!host->mmc_base) { + ret = -ENOMEM; + goto fail3; + } + + gpio_res = platform_get_resource(pdev, IORESOURCE_MEM, 2); + if (!gpio_res) { + ret = -ENXIO; + dev_dbg(&pdev->dev, "couldn't allocate gpio resource\n"); + goto fail4; + } + + /* + * Map I/O regions + */ + + host->gpio_base = ioremap(gpio_res->start, resource_size(gpio_res)); + if (!host->gpio_base) { + ret = -ENOMEM; + goto fail4; + } + +#ifdef USE_DMA + host->dma_base = __io_address(dma_res->start); + + if (!host->dma_base) { + ret = -ENOMEM; + goto fail5; + } + + // USE DMA5 channel + host->dma_base = (void __iomem *)((char *) host->dma_base + (SDHOST_DMA_CHANNEL * 0x100)); + + dev_dbg(&pdev->dev, "%s: using dma channel %d for sdhost\n", __func__, SDHOST_DMA_CHANNEL); + + /* + * Grab interrupts. + */ +#ifdef USE_DMA_IRQ + dat_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!dat_res) { + ret = -ENXIO; + dev_dbg(&pdev->dev, "couldn't allocate irq for dma\n"); + goto fail5; + } + + ret = request_irq(dat_res->start, bcm2708_mci_data_irq, 0, DRIVER_NAME " (dat)", host); + if (ret) { + goto fail5; + } + dev_dbg(&pdev->dev, "%s: using dma interrupt number %d for sdhost\n", __func__, dat_res->start); + +#endif +#endif + + host->present = bcm2708_mci_get_cd(host->mmc); + + sddet_res = platform_get_resource(pdev, IORESOURCE_IRQ, 1); + if (!sddet_res) { + ret = -ENXIO; + dev_dbg(&pdev->dev, "couldn't allocate irq for sd detect\n"); + goto fail6; + } + + ret = request_irq(sddet_res->start, bcm2708_mci_sddet_irq, 0, DRIVER_NAME " (cmd)", host); + if (ret) { + goto fail6; + } + + host->is_acmd = 0; + + mmc->ops = &bcm2708_mci_ops; + mmc->f_min = 200000; + mmc->f_max = 52000000; + mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34; + + /* + * We can do SGIO + */ + mmc->max_segs = NR_SG; + + /* + * Since we only have a 16-bit data length register, we must + * ensure that we don't exceed 2^16-1 bytes in a single request. + */ + mmc->max_req_size = 65535; + + /* + * Set the maximum segment size. Since we aren't doing DMA + * (yet) we are only limited by the data length register. + */ + mmc->max_seg_size = mmc->max_req_size; + + /* + * Block size can be up to 2048 bytes, but must be a power of two. + */ + mmc->max_blk_size = 2048; + + /* + * No limit on the number of blocks transferred. + */ + mmc->max_blk_count = mmc->max_req_size; + + /* + * We support 4-bit data (at least on the DB) + */ + + mmc->caps |= (MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED) ; + + bcm2708_mci_reset(host); + + mmc_add_host(mmc); + + printk(KERN_INFO "%s: BCM2708 SD host at 0x%08llx 0x%08llx\n", + mmc_hostname(mmc), + (unsigned long long)mmc_res->start, (unsigned long long)dma_res->start); + + return 0; + +fail6: +#ifdef USE_DMA_IRQ + free_irq(dat_res->start, host); +#endif +fail5: + iounmap(host->gpio_base); +fail4: + iounmap(host->mmc_base); +fail3: + release_mem_region(mmc_res->start, mmc_res->end - mmc_res->start + 1); +fail2: + dma_free_writecombine(&pdev->dev, SZ_4K, host->cb_base, host->cb_handle); +fail1: + mmc_free_host(mmc); +fail0: + dev_err(&pdev->dev, "probe failed, err %d\n", ret); + return ret; +} + +static int __devexit bcm2708_mci_remove(struct platform_device *pdev) +{ + struct mmc_host *mmc = platform_get_drvdata(pdev); + + if (mmc) { + struct bcm2708_mci_host *host = mmc_priv(mmc); + struct resource *res; + struct resource *res2; + + mmc_remove_host(mmc); +#ifdef USE_DMA +#ifdef USE_DMA_IRQ + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + free_irq(res->start, host); +#endif +#endif + + res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 1); + free_irq(res2->start, host); + + iounmap(host->mmc_base); + iounmap(host->gpio_base); + iounmap(host->dma_base); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(res->start, resource_size(res)); +#ifdef USE_DMA + dma_free_writecombine(&pdev->dev, SZ_4K, host->cb_base, host->cb_handle); +#endif + + mmc_free_host(mmc); + platform_set_drvdata(pdev, NULL); + + return 0; + } else + return -1; +} + +#ifdef CONFIG_PM +static int bcm2708_mci_suspend(struct platform_device *dev, pm_message_t state) +{ + struct mmc_host *mmc = platform_get_drvdata(dev); + int ret = 0; + + if (mmc) { + ret = mmc_suspend_host(mmc); + } + + return ret; +} + +static int bcm2708_mci_resume(struct platform_device *dev) +{ + struct mmc_host *mmc = platform_get_drvdata(dev); + int ret = 0; + + if (mmc) { + ret = mmc_resume_host(mmc); + } + + return ret; +} +#else +#define bcm2708_mci_suspend NULL +#define bcm2708_mci_resume NULL +#endif + +static struct platform_driver bcm2708_mci_driver = { + .probe = bcm2708_mci_probe, + .remove = bcm2708_mci_remove, + .suspend = bcm2708_mci_suspend, + .resume = bcm2708_mci_resume, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init bcm2708_mci_init(void) +{ + return platform_driver_register(&bcm2708_mci_driver); +} + +static void __exit bcm2708_mci_exit(void) +{ + platform_driver_unregister(&bcm2708_mci_driver); +} + +module_init(bcm2708_mci_init); +module_exit(bcm2708_mci_exit); + +MODULE_DESCRIPTION("BCM2708 Multimedia Card Interface driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:bcm2708_mci"); --- /dev/null +++ b/drivers/mmc/host/bcm2708_mci.h @@ -0,0 +1,101 @@ +/* + * linux/drivers/mmc/host/bcm2708_mci.c - Broadcom BCM2708 MCI driver + * + * Copyright (C) 2010 Broadcom, 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 version 2 as + * published by the Free Software Foundation. + */ + +struct clk; + +#define BCM2708_MCI_COMMAND 0x00 + +#define BCM2708_MCI_READ (1 << 6) +#define BCM2708_MCI_WRITE (1 << 7) +#define BCM2708_MCI_LONGRESP (1 << 9) +#define BCM2708_MCI_NORESP (1 << 10) +#define BCM2708_MCI_BUSY (1 << 11) +#define BCM2708_MCI_FAIL_FLAG (1 << 14) +#define BCM2708_MCI_ENABLE (1 << 15) + +#define BCM2708_MCI_ARGUMENT 0x04 + +#define BCM2708_MCI_TIMEOUT 0x08 +#define BCM2708_MCI_CLKDIV 0x0c + + +#define BCM2708_MCI_RESPONSE0 0x10 +#define BCM2708_MCI_RESPONSE1 0x14 +#define BCM2708_MCI_RESPONSE2 0x18 +#define BCM2708_MCI_RESPONSE3 0x1c + +#define BCM2708_MCI_STATUS 0x20 + +#define BCM2708_MCI_VDD 0x30 +#define BCM2708_MCI_VDD_ENABLE (1 << 0) + +#define BCM2708_MCI_EDM 0x34 + +#define BCM2708_MCI_HOSTCONFIG 0x38 + +#define BCM2708_MCI_HOSTCONFIG_WIDE_INT_BUS 0x2 +#define BCM2708_MCI_HOSTCONFIG_WIDEEXT_4BIT 0x4 +#define BCM2708_MCI_HOSTCONFIG_SLOW_CARD 0x8 +#define BCM2708_MCI_HOSTCONFIG_BLOCK_IRPT_EN (1<<8) +#define BCM2708_MCI_HOSTCONFIG_BUSY_IRPT_EN (1<<10) +#define BCM2708_MCI_HOSTCONFIG_WIDEEXT_CLR 0xFFFFFFFB + + +#define BCM2708_MCI_DATAFLAG (1 << 0) +#define BCM2708_MCI_CMDTIMEOUT (1 << 6) +#define BCM2708_MCI_HSTS_BLOCK (1 << 9) /**< block flag in status reg */ +#define BCM2708_MCI_HSTS_BUSY (1 << 10) /**< Busy flag in status reg */ + +#define BCM2708_MCI_HBCT 0x3c +#define BCM2708_MCI_DATA 0x40 +#define BCM2708_MCI_HBLC 0x50 + +#define NR_SG 16 + +typedef struct bulk_data_struct +{ + unsigned long info; + unsigned long src; + unsigned long dst; + unsigned long length; + unsigned long stride; + unsigned long next; + unsigned long pad[2]; +} BCM2708_DMA_CB_T; + +struct bcm2708_mci_host { + struct platform_device *dev; + + void __iomem *mmc_base; + void __iomem *dma_base; + void __iomem *gpio_base; + + BCM2708_DMA_CB_T *cb_base; + dma_addr_t cb_handle; + + struct mmc_host *mmc; + + struct semaphore sem; + + int is_acmd; + int present; +}; + +static inline char *bcm2708_mci_kmap_atomic(struct scatterlist *sg, unsigned long *flags) +{ +// local_irq_save(*flags); + return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset; +} + +static inline void bcm2708_mci_kunmap_atomic(void *buffer, unsigned long *flags) +{ + kunmap_atomic(buffer, KM_BIO_SRC_IRQ); +// local_irq_restore(*flags); +} --- /dev/null +++ b/drivers/mmc/host/sdhci-bcm2708.c @@ -0,0 +1,1461 @@ +/* + * sdhci-bcm2708.c Support for SDHCI device on BCM2708 + * Copyright (c) 2010 Broadcom + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * 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. + */ + +/* Supports: + * SDHCI platform device - Arasan SD controller in BCM2708 + * + * Inspired by sdhci-pci.c, by Pierre Ossman + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include "sdhci.h" + +/*****************************************************************************\ + * * + * Configuration * + * * +\*****************************************************************************/ + +#define DRIVER_NAME "bcm2708_sdhci" + +/* for the time being insist on DMA mode - PIO seems not to work */ +#ifndef CONFIG_MMC_SDHCI_BCM2708_DMA +#warning Non-DMA (PIO) version of this driver currently unavailable +#endif +#undef CONFIG_MMC_SDHCI_BCM2708_DMA +#define CONFIG_MMC_SDHCI_BCM2708_DMA y + +#define USE_SYNC_AFTER_DMA +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA +/* #define CHECK_DMA_USE */ +#endif +//#define LOG_REGISTERS + +#define USE_SCHED_TIME + +#define SDHCI_BCM_DMA_CHAN 4 /* this default is normally overriden */ +#define SDHCI_BCM_DMA_WAITS 0 /* delays slowing DMA transfers: 0-31 */ +/* We are worried that SD card DMA use may be blocking the AXI bus for others */ + +/*! TODO: obtain these from the physical address */ +#define DMA_SDHCI_BASE 0x7e300000 /* EMMC register block on Videocore */ +#define DMA_SDHCI_BUFFER (DMA_SDHCI_BASE + SDHCI_BUFFER) + +#define BCM2708_SDHCI_SLEEP_TIMEOUT 1000 /* msecs */ + +#define POWER_OFF 0 +#define POWER_LAZY_OFF 1 +#define POWER_ON 2 + + +/*****************************************************************************\ + * * + * Debug * + * * +\*****************************************************************************/ + + + +#define DBG(f, x...) \ + pr_debug(DRIVER_NAME " [%s()]: " f, __func__,## x) +// printk(KERN_INFO DRIVER_NAME " [%s()]: " f, __func__,## x)//GRAYG + + +/*****************************************************************************\ + * * + * High Precision Time * + * * +\*****************************************************************************/ + +#ifdef USE_SCHED_TIME + +#include + +typedef unsigned long hptime_t; + +#define FMT_HPT "lu" + +static inline hptime_t hptime(void) +{ + return frc_clock_ticks32(); +} + +#define HPTIME_CLK_NS 1000ul + +#else + +typedef unsigned long hptime_t; + +#define FMT_HPT "lu" + +static inline hptime_t hptime(void) +{ + return jiffies; +} + +#define HPTIME_CLK_NS (1000000000ul/HZ) + +#endif + +static inline unsigned long int since_ns(hptime_t t) +{ + return (unsigned long)((hptime() - t) * HPTIME_CLK_NS); +} + +#if 0 +static void hptime_test(void) +{ + hptime_t now; + hptime_t later; + + now = hptime(); + msleep(10); + later = hptime(); + + printk(KERN_INFO DRIVER_NAME": 10ms = %"FMT_HPT" clks " + "(from %"FMT_HPT" to %"FMT_HPT") = %luns\n", + later-now, now, later, + (unsigned long)(HPTIME_CLK_NS * (later - now))); + + now = hptime(); + msleep(1000); + later = hptime(); + + printk(KERN_INFO DRIVER_NAME": 1s = %"FMT_HPT" clks " + "(from %"FMT_HPT" to %"FMT_HPT") = %luns\n", + later-now, now, later, + (unsigned long)(HPTIME_CLK_NS * (later - now))); +} +#endif + +/*****************************************************************************\ + * * + * SDHCI core callbacks * + * * +\*****************************************************************************/ + + +#ifdef CHECK_DMA_USE +/*#define CHECK_DMA_REG_USE*/ +#endif + +#ifdef CHECK_DMA_REG_USE +/* we don't expect anything to be using these registers during a + DMA (except the IRQ status) - so check */ +static void check_dma_reg_use(struct sdhci_host *host, int reg); +#else +#define check_dma_reg_use(host, reg) +#endif + + +static inline u32 sdhci_bcm2708_raw_readl(struct sdhci_host *host, int reg) +{ + return readl(host->ioaddr + reg); +} + +u32 sdhci_bcm2708_readl(struct sdhci_host *host, int reg) +{ + u32 l = sdhci_bcm2708_raw_readl(host, reg); + +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: readl from 0x%02x, value 0x%08x\n", + mmc_hostname(host->mmc), reg, l); +#endif + check_dma_reg_use(host, reg); + + return l; +} + +u16 sdhci_bcm2708_readw(struct sdhci_host *host, int reg) +{ + u32 l = sdhci_bcm2708_raw_readl(host, reg & ~3); + u32 w = l >> (reg << 3 & 0x18) & 0xffff; + +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: readw from 0x%02x, value 0x%04x\n", + mmc_hostname(host->mmc), reg, w); +#endif + check_dma_reg_use(host, reg); + + return (u16)w; +} + +u8 sdhci_bcm2708_readb(struct sdhci_host *host, int reg) +{ + u32 l = sdhci_bcm2708_raw_readl(host, reg & ~3); + u32 b = l >> (reg << 3 & 0x18) & 0xff; + +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: readb from 0x%02x, value 0x%02x\n", + mmc_hostname(host->mmc), reg, b); +#endif + check_dma_reg_use(host, reg); + + return (u8)b; +} + + +static void sdhci_bcm2708_raw_writel(struct sdhci_host *host, u32 val, int reg) +{ + /* The Arasan has a bugette whereby it may lose the content of + * successive writes to registers that are within two SD-card clock + * cycles of each other (a clock domain crossing problem). + * It seems, however, that the data register does not have this problem. + * (Which is just as well - otherwise we'd have to nobble the DMA engine + * too) + */ +#if 1 + if (reg != SDHCI_BUFFER && host->clock != 0) { + /* host->clock is the clock freq in Hz */ + static hptime_t last_write_hpt; + hptime_t now = hptime(); + unsigned int ns_2clk = 2000000000/host->clock; + + if (now == last_write_hpt || now == last_write_hpt+1) { + /* we can't guarantee any significant time has + * passed - we'll have to wait anyway ! */ + udelay((ns_2clk+1000-1)/1000); + } else + { + /* we must have waited at least this many ns: */ + unsigned int ns_wait = HPTIME_CLK_NS * + (last_write_hpt - now - 1); + if (ns_wait < ns_2clk) + udelay((ns_2clk-ns_wait+500)/1000); + } + last_write_hpt = now; + } + writel(val, host->ioaddr + reg); +#else + void __iomem * regaddr = host->ioaddr + reg; + + writel(val, regaddr); + + if (reg != SDHCI_BUFFER && reg != SDHCI_INT_STATUS && host->clock != 0) + { + int timeout = 100000; + while (val != readl(regaddr) && --timeout > 0) + continue; + + if (timeout <= 0) + printk(KERN_ERR "%s: writing 0x%X to reg 0x%X " + "always gives 0x%X\n", + mmc_hostname(host->mmc), + val, reg, readl(regaddr)); + BUG_ON(timeout <= 0); + } +#endif +} + + +void sdhci_bcm2708_writel(struct sdhci_host *host, u32 val, int reg) +{ +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: writel to 0x%02x, value 0x%08x\n", + mmc_hostname(host->mmc), reg, val); +#endif + check_dma_reg_use(host, reg); + + sdhci_bcm2708_raw_writel(host, val, reg); +} + +void sdhci_bcm2708_writew(struct sdhci_host *host, u16 val, int reg) +{ + static u32 shadow = 0; + + u32 p = reg == SDHCI_COMMAND ? shadow : + sdhci_bcm2708_raw_readl(host, reg & ~3); + u32 s = reg << 3 & 0x18; + u32 l = val << s; + u32 m = 0xffff << s; + +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: writew to 0x%02x, value 0x%04x\n", + mmc_hostname(host->mmc), reg, val); +#endif + + if (reg == SDHCI_TRANSFER_MODE) + shadow = (p & ~m) | l; + else { + check_dma_reg_use(host, reg); + sdhci_bcm2708_raw_writel(host, (p & ~m) | l, reg & ~3); + } +} + +void sdhci_bcm2708_writeb(struct sdhci_host *host, u8 val, int reg) +{ + u32 p = sdhci_bcm2708_raw_readl(host, reg & ~3); + u32 s = reg << 3 & 0x18; + u32 l = val << s; + u32 m = 0xff << s; + +#ifdef LOG_REGISTERS + printk(KERN_ERR "%s: writeb to 0x%02x, value 0x%02x\n", + mmc_hostname(host->mmc), reg, val); +#endif + + check_dma_reg_use(host, reg); + sdhci_bcm2708_raw_writel(host, (p & ~m) | l, reg & ~3); +} + +static unsigned int sdhci_bcm2708_get_max_clock(struct sdhci_host *host) +{ + return 100000000; // this value is in Hz (100MHz/4) +} + +static unsigned int sdhci_bcm2708_get_timeout_clock(struct sdhci_host *host) +{ + return 100000; // this value is in kHz (100MHz/4) +} + +/*****************************************************************************\ + * * + * DMA Operation * + * * +\*****************************************************************************/ + +struct sdhci_bcm2708_priv { + int dma_chan; + int dma_irq; + void __iomem *dma_chan_base; + struct bcm2708_dma_cb *cb_base; /* DMA control blocks */ + dma_addr_t cb_handle; + /* tracking scatter gather progress */ + unsigned sg_ix; /* scatter gather list index */ + unsigned sg_done; /* bytes in current sg_ix done */ + /* power management */ + BCM_POWER_HANDLE_T power_handle; + unsigned char power_state; /* enable/disable power state */ + unsigned char power_mode; /* last set power mode */ +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + unsigned char dma_wanted; /* DMA transfer requested */ + unsigned char dma_waits; /* wait states in DMAs */ +#ifdef CHECK_DMA_USE + unsigned char dmas_pending; /* no of unfinished DMAs */ + hptime_t when_started; + hptime_t when_reset; + hptime_t when_stopped; +#endif +#endif + /* signalling the end of a transfer */ + void (*complete)(struct sdhci_host *); +}; + +#define SDHCI_HOST_PRIV(host) \ + (struct sdhci_bcm2708_priv *)((struct sdhci_host *)(host)+1) + + + +#ifdef CHECK_DMA_REG_USE +static void check_dma_reg_use(struct sdhci_host *host, int reg) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + if (host_priv->dma_wanted && reg != SDHCI_INT_STATUS) { + printk(KERN_INFO"%s: accessing register 0x%x during DMA\n", + mmc_hostname(host->mmc), reg); + } +} +#endif + + + +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + +static void sdhci_clear_set_irqgen(struct sdhci_host *host, u32 clear, u32 set) +{ + u32 ier; + + ier = sdhci_bcm2708_raw_readl(host, SDHCI_SIGNAL_ENABLE); + ier &= ~clear; + ier |= set; + /* change which requests generate IRQs - makes no difference to + the content of SDHCI_INT_STATUS, or the need to acknowledge IRQs */ + sdhci_bcm2708_raw_writel(host, ier, SDHCI_SIGNAL_ENABLE); +} + +static void sdhci_signal_irqs(struct sdhci_host *host, u32 irqs) +{ + sdhci_clear_set_irqgen(host, 0, irqs); +} + +static void sdhci_unsignal_irqs(struct sdhci_host *host, u32 irqs) +{ + sdhci_clear_set_irqgen(host, irqs, 0); +} + + + +static void schci_bcm2708_cb_read(struct sdhci_bcm2708_priv *host, + int ix, + dma_addr_t dma_addr, unsigned len, + int /*bool*/ is_last) +{ + struct bcm2708_dma_cb *cb = &host->cb_base[ix]; + unsigned char dmawaits = host->dma_waits; + + cb->info = BCM2708_DMA_PER_MAP(BCM2708_DMA_DREQ_EMMC) | + BCM2708_DMA_WAITS(dmawaits) | + BCM2708_DMA_S_DREQ | + BCM2708_DMA_D_WIDTH | + BCM2708_DMA_D_INC; + cb->src = DMA_SDHCI_BUFFER; /* DATA register DMA address */ + cb->dst = dma_addr; + cb->length = len; + cb->stride = 0; + + if (is_last) { + cb->info |= BCM2708_DMA_INT_EN; + cb->next = 0; + } else + cb->next = host->cb_handle + + (ix+1)*sizeof(struct bcm2708_dma_cb); + + cb->pad[0] = 0; + cb->pad[1] = 0; +} + +static void schci_bcm2708_cb_write(struct sdhci_bcm2708_priv *host, + int ix, + dma_addr_t dma_addr, unsigned len, + int /*bool*/ is_last) +{ + struct bcm2708_dma_cb *cb = &host->cb_base[ix]; + unsigned char dmawaits = host->dma_waits; + + /* We can make arbitrarily large writes as long as we specify DREQ to + pace the delivery of bytes to the Arasan hardware */ + cb->info = BCM2708_DMA_PER_MAP(BCM2708_DMA_DREQ_EMMC) | + BCM2708_DMA_WAITS(dmawaits) | + BCM2708_DMA_D_DREQ | + BCM2708_DMA_S_WIDTH | + BCM2708_DMA_S_INC; + cb->src = dma_addr; + cb->dst = DMA_SDHCI_BUFFER; /* DATA register DMA address */ + cb->length = len; + cb->stride = 0; + + if (is_last) { + cb->info |= BCM2708_DMA_INT_EN; + cb->next = 0; + } else + cb->next = host->cb_handle + + (ix+1)*sizeof(struct bcm2708_dma_cb); + + cb->pad[0] = 0; + cb->pad[1] = 0; +} + + +static void schci_bcm2708_dma_go(struct sdhci_host *host) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + void __iomem *dma_chan_base = host_priv->dma_chan_base; + + BUG_ON(host_priv->dma_wanted); +#ifdef CHECK_DMA_USE + if (host_priv->dma_wanted) + printk(KERN_ERR "%s: DMA already in progress - " + "now %"FMT_HPT", last started %lu " + "reset %lu stopped %lu\n", + mmc_hostname(host->mmc), + hptime(), since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + else if (host_priv->dmas_pending > 0) + printk(KERN_INFO "%s: note - new DMA when %d reset DMAs " + "already in progress - " + "now %"FMT_HPT", started %lu reset %lu stopped %lu\n", + mmc_hostname(host->mmc), + host_priv->dmas_pending, + hptime(), since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + host_priv->dmas_pending += 1; + host_priv->when_started = hptime(); +#endif + host_priv->dma_wanted = 1; + DBG("PDMA go - base %p handle %08X\n", dma_chan_base, + host_priv->cb_handle); + bcm_dma_start(dma_chan_base, host_priv->cb_handle); +} + + +static void +sdhci_platdma_read(struct sdhci_host *host, dma_addr_t dma_addr, size_t len) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + + DBG("PDMA to read %d bytes\n", len); + host_priv->sg_done += len; + schci_bcm2708_cb_read(host_priv, 0, dma_addr, len, 1/*TRUE*/); + schci_bcm2708_dma_go(host); +} + + +static void +sdhci_platdma_write(struct sdhci_host *host, dma_addr_t dma_addr, size_t len) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + + DBG("PDMA to write %d bytes\n", len); + //BUG_ON(0 != (len & 0x1ff)); + + host_priv->sg_done += len; + schci_bcm2708_cb_write(host_priv, 0, dma_addr, len, 1/*TRUE*/); + schci_bcm2708_dma_go(host); +} + +/*! space is avaiable to receive into or data is available to write + Platform DMA exported function +*/ +void +sdhci_bcm2708_platdma_avail(struct sdhci_host *host, unsigned int *ref_intmask, + void(*completion_callback)(struct sdhci_host *host)) +{ + struct mmc_data *data = host->data; + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int sg_ix; + size_t bytes; + dma_addr_t addr; + + BUG_ON(NULL == data); + BUG_ON(0 == data->blksz); + + host_priv->complete = completion_callback; + + sg_ix = host_priv->sg_ix; + BUG_ON(sg_ix >= data->sg_len); + + /* we can DMA blocks larger than blksz - it may hang the DMA + channel but we are its only user */ + bytes = sg_dma_len(&data->sg[sg_ix]) - host_priv->sg_done; + addr = sg_dma_address(&data->sg[sg_ix]) + host_priv->sg_done; + + if (bytes > 0) { + /* We're going to poll for read/write available state until + we finish this DMA + */ + + if (data->flags & MMC_DATA_READ) { + if (*ref_intmask & SDHCI_INT_DATA_AVAIL) { + sdhci_unsignal_irqs(host, SDHCI_INT_DATA_AVAIL | + SDHCI_INT_SPACE_AVAIL); + sdhci_platdma_read(host, addr, bytes); + } + } else { + if (*ref_intmask & SDHCI_INT_SPACE_AVAIL) { + sdhci_unsignal_irqs(host, SDHCI_INT_DATA_AVAIL | + SDHCI_INT_SPACE_AVAIL); + sdhci_platdma_write(host, addr, bytes); + } + } + } + /* else: + we have run out of bytes that need transferring (e.g. we may be in + the middle of the last DMA transfer), or + it is also possible that we've been called when another IRQ is + signalled, even though we've turned off signalling of our own IRQ */ + + *ref_intmask &= ~SDHCI_INT_DATA_END; + /* don't let the main sdhci driver act on this .. we'll deal with it + when we respond to the DMA - if one is currently in progress */ +} + +/* is it possible to DMA the given mmc_data structure? + Platform DMA exported function +*/ +int /*bool*/ +sdhci_bcm2708_platdma_dmaable(struct sdhci_host *host, struct mmc_data *data) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int ok = bcm_sg_suitable_for_dma(data->sg, data->sg_len); + + if (!ok) + DBG("Reverting to PIO - bad cache alignment\n"); + + else { + host_priv->sg_ix = 0; /* first SG index */ + host_priv->sg_done = 0; /* no bytes done */ + } + + return ok; +} + +#include //GRAYG +/*! the current SD transacton has been abandonned + We need to tidy up if we were in the middle of a DMA + Platform DMA exported function +*/ +void +sdhci_bcm2708_platdma_reset(struct sdhci_host *host, struct mmc_data *data) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + unsigned long flags; + + BUG_ON(NULL == host); + + spin_lock_irqsave(&host->lock, flags); + + if (host_priv->dma_wanted) { + if (NULL == data) { + printk(KERN_ERR "%s: ongoing DMA reset - no data!\n", + mmc_hostname(host->mmc)); + BUG_ON(NULL == data); + } else { + struct scatterlist *sg; + int sg_len; + int sg_todo; + int rc; + unsigned long cs; + + sg = data->sg; + sg_len = data->sg_len; + sg_todo = sg_dma_len(&sg[host_priv->sg_ix]); + + cs = readl(host_priv->dma_chan_base + BCM2708_DMA_CS); + + if (!(BCM2708_DMA_ACTIVE & cs)) + printk(KERN_INFO "%s: missed completion of " + "cmd %d DMA (%d/%d [%d]/[%d]) - " + "ignoring it\n", + mmc_hostname(host->mmc), + host->last_cmdop, + host_priv->sg_done, sg_todo, + host_priv->sg_ix+1, sg_len); + else + printk(KERN_INFO "%s: resetting ongoing cmd %d" + "DMA before %d/%d [%d]/[%d] complete\n", + mmc_hostname(host->mmc), + host->last_cmdop, + host_priv->sg_done, sg_todo, + host_priv->sg_ix+1, sg_len); +#ifdef CHECK_DMA_USE + printk(KERN_INFO "%s: now %"FMT_HPT" started %lu " + "last reset %lu last stopped %lu\n", + mmc_hostname(host->mmc), + hptime(), since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + { unsigned long info, debug; + void __iomem *base; + unsigned long pend0, pend1, pend2; + + base = host_priv->dma_chan_base; + cs = readl(base + BCM2708_DMA_CS); + info = readl(base + BCM2708_DMA_INFO); + debug = readl(base + BCM2708_DMA_DEBUG); + printk(KERN_INFO "%s: DMA%d CS=%08lX TI=%08lX " + "DEBUG=%08lX\n", + mmc_hostname(host->mmc), + host_priv->dma_chan, + cs, info, debug); + pend0 = readl(__io_address(ARM_IRQ_PEND0)); + pend1 = readl(__io_address(ARM_IRQ_PEND1)); + pend2 = readl(__io_address(ARM_IRQ_PEND2)); + + printk(KERN_INFO "%s: PEND0=%08lX " + "PEND1=%08lX PEND2=%08lX\n", + mmc_hostname(host->mmc), + pend0, pend1, pend2); + + //gintsts = readl(__io_address(GINTSTS)); + //gintmsk = readl(__io_address(GINTMSK)); + //printk(KERN_INFO "%s: USB GINTSTS=%08lX" + // "GINTMSK=%08lX\n", + // mmc_hostname(host->mmc), gintsts, gintmsk); + } +#endif + rc = bcm_dma_abort(host_priv->dma_chan_base); + BUG_ON(rc != 0); + } + host_priv->dma_wanted = 0; +#ifdef CHECK_DMA_USE + host_priv->when_reset = hptime(); +#endif + } + + spin_unlock_irqrestore(&host->lock, flags); +} + + +static void sdhci_bcm2708_dma_complete_irq(struct sdhci_host *host, + u32 dma_cs) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + struct mmc_data *data; + struct scatterlist *sg; + int sg_len; + int sg_ix; + int sg_todo; + unsigned long flags; + + BUG_ON(NULL == host); + + spin_lock_irqsave(&host->lock, flags); + data = host->data; + +#ifdef CHECK_DMA_USE + if (host_priv->dmas_pending <= 0) + DBG("on completion no DMA in progress - " + "now %"FMT_HPT" started %lu reset %lu stopped %lu\n", + hptime(), since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + else if (host_priv->dmas_pending > 1) + DBG("still %d DMA in progress after completion - " + "now %"FMT_HPT" started %lu reset %lu stopped %lu\n", + host_priv->dmas_pending - 1, + hptime(), since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + BUG_ON(host_priv->dmas_pending <= 0); + host_priv->dmas_pending -= 1; + host_priv->when_stopped = hptime(); +#endif + host_priv->dma_wanted = 0; + + if (NULL == data) { + DBG("PDMA unused completion - status 0x%X\n", dma_cs); + spin_unlock_irqrestore(&host->lock, flags); + return; + } + sg = data->sg; + sg_len = data->sg_len; + sg_todo = sg_dma_len(&sg[host_priv->sg_ix]); + + DBG("PDMA complete %d/%d [%d]/[%d]..\n", + host_priv->sg_done, sg_todo, + host_priv->sg_ix+1, sg_len); + + BUG_ON(host_priv->sg_done > sg_todo); + + if (host_priv->sg_done >= sg_todo) { + host_priv->sg_ix++; + host_priv->sg_done = 0; + } + + sg_ix = host_priv->sg_ix; + if (sg_ix < sg_len) { + u32 irq_mask; + /* Set off next DMA if we've got the capacity */ + + if (data->flags & MMC_DATA_READ) + irq_mask = SDHCI_INT_DATA_AVAIL; + else + irq_mask = SDHCI_INT_SPACE_AVAIL; + + /* We have to use the interrupt status register on the BCM2708 + rather than the SDHCI_PRESENT_STATE register because latency + in the glue logic means that the information retrieved from + the latter is not always up-to-date w.r.t the DMA engine - + it may not indicate that a read or a write is ready yet */ + if (sdhci_bcm2708_raw_readl(host, SDHCI_INT_STATUS) & + irq_mask) { + size_t bytes = sg_dma_len(&sg[sg_ix]) - + host_priv->sg_done; + dma_addr_t addr = sg_dma_address(&data->sg[sg_ix]) + + host_priv->sg_done; + + /* acknowledge interrupt */ + sdhci_bcm2708_raw_writel(host, irq_mask, + SDHCI_INT_STATUS); + + BUG_ON(0 == bytes); + + if (data->flags & MMC_DATA_READ) + sdhci_platdma_read(host, addr, bytes); + else + sdhci_platdma_write(host, addr, bytes); + } else { + DBG("PDMA - wait avail\n"); + /* may generate an IRQ if already present */ + sdhci_signal_irqs(host, SDHCI_INT_DATA_AVAIL | + SDHCI_INT_SPACE_AVAIL); + } + } else { +#ifdef USE_SYNC_AFTER_DMA + /* On the Arasan controller the stop command (which will be + scheduled after this completes) does not seem to work + properly if we allow it to be issued when we are + transferring data to/from the SD card. + We get CRC and DEND errors unless we wait for + the SD controller to finish reading/writing to the card. */ + u32 state_mask; + int timeout=1000000; + hptime_t now = hptime(); + + DBG("PDMA over - sync card\n"); + if (data->flags & MMC_DATA_READ) + state_mask = SDHCI_DOING_READ; + else + state_mask = SDHCI_DOING_WRITE; + + while (0 != (sdhci_bcm2708_raw_readl(host, + SDHCI_PRESENT_STATE) & + state_mask) && --timeout > 0) + continue; + + if (1000000-timeout > 4000) /*ave. is about 3250*/ + printk(KERN_INFO "%s: note - long %s sync %luns - " + "%d its.\n", + mmc_hostname(host->mmc), + data->flags & MMC_DATA_READ? "read": "write", + since_ns(now), 1000000-timeout); + if (timeout <= 0) + printk(KERN_ERR"%s: final %s to SD card still " + "running\n", + mmc_hostname(host->mmc), + data->flags & MMC_DATA_READ? "read": "write"); +#endif + if (host_priv->complete) { + (*host_priv->complete)(host); + DBG("PDMA %s complete\n", + data->flags & MMC_DATA_READ?"read":"write"); + sdhci_signal_irqs(host, SDHCI_INT_DATA_AVAIL | + SDHCI_INT_SPACE_AVAIL); + } + } + spin_unlock_irqrestore(&host->lock, flags); +} + +static irqreturn_t sdhci_bcm2708_dma_irq(int irq, void *dev_id) +{ + irqreturn_t result = IRQ_NONE; + struct sdhci_host *host = dev_id; + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + u32 dma_cs; /* control and status register */ + unsigned long flags; + + BUG_ON(NULL == dev_id); + BUG_ON(NULL == host_priv->dma_chan_base); + + spin_lock_irqsave(&host->lock, flags); + + dma_cs = readl(host_priv->dma_chan_base + BCM2708_DMA_CS); + + if (dma_cs & BCM2708_DMA_ERR) { + unsigned long debug; + debug = readl(host_priv->dma_chan_base + + BCM2708_DMA_DEBUG); + printk(KERN_ERR "%s: DMA error - CS %lX DEBUG %lX\n", + mmc_hostname(host->mmc), (unsigned long)dma_cs, + (unsigned long)debug); + /* reset error */ + writel(debug, host_priv->dma_chan_base + + BCM2708_DMA_DEBUG); + } + if (dma_cs & BCM2708_DMA_INT) { + /* acknowledge interrupt */ + writel(BCM2708_DMA_INT, + host_priv->dma_chan_base + BCM2708_DMA_CS); + + dsb(); /* ARM data synchronization (push) operation */ + + if (!host_priv->dma_wanted) { + /* ignore this interrupt - it was reset */ + printk(KERN_INFO "%s: DMA IRQ %X ignored - " + "results were reset\n", + mmc_hostname(host->mmc), dma_cs); +#ifdef CHECK_DMA_USE + printk(KERN_INFO "%s: now %"FMT_HPT + " started %lu reset %lu stopped %lu\n", + mmc_hostname(host->mmc), hptime(), + since_ns(host_priv->when_started), + since_ns(host_priv->when_reset), + since_ns(host_priv->when_stopped)); + host_priv->dmas_pending--; +#endif + } else + sdhci_bcm2708_dma_complete_irq(host, dma_cs); + + result = IRQ_HANDLED; + } + + spin_unlock_irqrestore(&host->lock, flags); + + return result; +} +#endif /* CONFIG_MMC_SDHCI_BCM2708_DMA */ + + +/***************************************************************************** \ + * * + * Device Attributes * + * * +\*****************************************************************************/ + + +/** + * Show the DMA-using status + */ +static ssize_t attr_dma_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct sdhci_host *host = (struct sdhci_host *)dev_get_drvdata(_dev); + + if (host) { + int use_dma = (host->flags & SDHCI_USE_PLATDMA? 1:0); + return sprintf(buf, "%d\n", use_dma); + } else + return -EINVAL; +} + +/** + * Set the DMA-using status + */ +static ssize_t attr_dma_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sdhci_host *host = (struct sdhci_host *)dev_get_drvdata(_dev); + + if (host) { +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + int on = simple_strtol(buf, NULL, 0); + if (on) { + host->flags |= SDHCI_USE_PLATDMA; + printk(KERN_INFO "%s: DMA enabled\n", + mmc_hostname(host->mmc)); + } else { + host->flags &= ~(SDHCI_USE_PLATDMA | SDHCI_REQ_USE_DMA); + printk(KERN_INFO "%s: DMA disabled\n", + mmc_hostname(host->mmc)); + } +#endif + return count; + } else + return -EINVAL; +} + +static DEVICE_ATTR(use_dma, S_IRUGO | S_IWUGO, attr_dma_show, attr_dma_store); + + +/** + * Show the DMA wait states used + */ +static ssize_t attr_dmawait_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct sdhci_host *host = (struct sdhci_host *)dev_get_drvdata(_dev); + + if (host) { + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int dmawait = host_priv->dma_waits; + return sprintf(buf, "%d\n", dmawait); + } else + return -EINVAL; +} + +/** + * Set the DMA wait state used + */ +static ssize_t attr_dmawait_store(struct device *_dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct sdhci_host *host = (struct sdhci_host *)dev_get_drvdata(_dev); + + if (host) { +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int dma_waits = simple_strtol(buf, NULL, 0); + if (dma_waits >= 0 && dma_waits < 32) + host_priv->dma_waits = dma_waits; + else + printk(KERN_ERR "%s: illegal dma_waits value - %d", + mmc_hostname(host->mmc), dma_waits); +#endif + return count; + } else + return -EINVAL; +} + +static DEVICE_ATTR(dma_wait, S_IRUGO | S_IWUGO, + attr_dmawait_show, attr_dmawait_store); + + +/** + * Show the DMA-using status + */ +static ssize_t attr_status_show(struct device *_dev, + struct device_attribute *attr, char *buf) +{ + struct sdhci_host *host = (struct sdhci_host *)dev_get_drvdata(_dev); + + if (host) { + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int power_state = host_priv->power_state; + return sprintf(buf, + "present: yes\n" + "power: %s\n" + "clock: %u Hz\n" +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + "dma: %s (%d waits)\n", +#else + "dma: unconfigured\n", +#endif + power_state == POWER_ON? "on": + power_state == POWER_OFF? "off": + power_state == POWER_LAZY_OFF? "lazy-off": + "", + host->clock +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + , (host->flags & SDHCI_USE_PLATDMA)? "on": "off" + , host_priv->dma_waits +#endif + ); + } else + return -EINVAL; +} + +static DEVICE_ATTR(status, S_IRUGO, attr_status_show, NULL); + +/***************************************************************************** \ + * * + * Power Management * + * * +\*****************************************************************************/ + + +#ifdef CONFIG_PM +static int sdhci_bcm2708_suspend(struct platform_device *dev, pm_message_t state) +{ + struct sdhci_host *host = (struct sdhci_host *) + platform_get_drvdata(dev); + int ret = 0; + + if (host->mmc) { + ret = mmc_suspend_host(host->mmc); + } + + return ret; +} + +static int sdhci_bcm2708_resume(struct platform_device *dev) +{ + struct sdhci_host *host = (struct sdhci_host *) + platform_get_drvdata(dev); + int ret = 0; + + if (host->mmc) { + ret = mmc_resume_host(host->mmc); + } + + return ret; +} +#endif + + +/* Click forwards one step towards fully on */ +static int sdhci_bcm2708_enable(struct sdhci_host *host) +{ + int rc; + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + + if (host_priv->power_state == POWER_OFF) { + /* warning: may schedule - don't call in irq mode */ + rc = bcm_power_request(host_priv->power_handle, + BCM_POWER_SDCARD); + + if (rc == 0) { + mmc_power_restore_host(host->mmc); + host_priv->power_state = POWER_ON; + } else if (rc != -EINTR) + printk(KERN_ERR "%s: mmc power up request failed - " + "rc %d\n", + mmc_hostname(host->mmc), rc); + } else { + host_priv->power_state = POWER_ON; + rc = 0; + } + + return rc; +} + +/* Click backwards one step towards fully off */ +static int sdhci_bcm2708_disable(struct sdhci_host *host, int lazy) +{ + int rc; + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + + if ((host_priv->power_state == POWER_ON) && lazy) { + host_priv->power_state = POWER_LAZY_OFF; + return BCM2708_SDHCI_SLEEP_TIMEOUT; + } + + /* warning: may schedule - don't call in irq mode */ + rc = bcm_power_request(host_priv->power_handle, BCM_POWER_NONE); + + if (rc == 0) + host_priv->power_state = POWER_OFF; + else if (rc != -EINTR) + printk(KERN_ERR "%s: mmc power down request failed - rc %d\n", + mmc_hostname(host->mmc), rc); + + return rc; +} + +static int sdhci_bcm2708_set_plat_power(struct sdhci_host *host, + int power_mode) +{ + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int rc; + + do { + rc = mmc_host_enable(host->mmc); + } while (-EINTR == rc); + + if (rc == 0) do { + if (rc == 0 && power_mode != host_priv->power_mode) + { + switch (power_mode) + { + case MMC_POWER_OFF: + rc = bcm_power_request(host_priv->power_handle, + BCM_POWER_NONE); + break; + + case MMC_POWER_UP: + rc = bcm_power_request(host_priv->power_handle, + BCM_POWER_SDCARD); + /* + * We need an extra 10ms delay of 10ms before we + * can apply clock after applying power + */ + if (rc == 0) + mdelay(10); + break; + + case MMC_POWER_ON: + mdelay(10); + /* do_send_init_stream = 1; */ + break; + } + + if (rc == 0) + host_priv->power_mode = power_mode; + } + } while (-EINTR == rc); + + if (rc == 0) do { + if (rc == 0) { + if (power_mode == MMC_POWER_OFF) + rc = mmc_host_disable(host->mmc); + else + rc = mmc_host_lazy_disable(host->mmc); + } + + } while (-EINTR == rc); + + return rc; +} + +/*****************************************************************************\ + * * + * Device quirk functions. Implemented as local ops because the flags * + * field is out of space with newer kernels. This implementation can be * + * back ported to older kernels as well. * +\****************************************************************************/ +static unsigned int sdhci_bcm2708_quirk_extra_ints(struct sdhci_host *host) +{ + return 1; +} + +static unsigned int sdhci_bcm2708_quirk_spurious_crc(struct sdhci_host *host) +{ + return 1; +} + +static unsigned int sdhci_bcm2708_quirk_voltage_broken(struct sdhci_host *host) +{ + return 1; +} + +static unsigned int sdhci_bcm2708_uhs_broken(struct sdhci_host *host) +{ + return 1; +} + +/***************************************************************************** \ + * * + * Device ops * + * * +\*****************************************************************************/ + +static struct sdhci_ops sdhci_bcm2708_ops = { +#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS + .read_l = sdhci_bcm2708_readl, + .read_w = sdhci_bcm2708_readw, + .read_b = sdhci_bcm2708_readb, + .write_l = sdhci_bcm2708_writel, + .write_w = sdhci_bcm2708_writew, + .write_b = sdhci_bcm2708_writeb, +#else +#error The BCM2708 SDHCI driver needs CONFIG_MMC_SDHCI_IO_ACCESSORS to be set +#endif + //.enable_dma = NULL, + //.set_clock = NULL, + .get_max_clock = sdhci_bcm2708_get_max_clock, + //.get_min_clock = NULL, + .get_timeout_clock = sdhci_bcm2708_get_timeout_clock, + + .enable = sdhci_bcm2708_enable, + .disable = sdhci_bcm2708_disable, + .set_plat_power = sdhci_bcm2708_set_plat_power, + +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + // Platform DMA operations + .pdma_able = sdhci_bcm2708_platdma_dmaable, + .pdma_avail = sdhci_bcm2708_platdma_avail, + .pdma_reset = sdhci_bcm2708_platdma_reset, +#endif + .extra_ints = sdhci_bcm2708_quirk_extra_ints, + .spurious_crc_acmd51 = sdhci_bcm2708_quirk_spurious_crc, + .voltage_broken = sdhci_bcm2708_quirk_voltage_broken, + .uhs_broken = sdhci_bcm2708_uhs_broken, +}; + +/*****************************************************************************\ + * * + * Device probing/removal * + * * +\*****************************************************************************/ + +static int __devinit sdhci_bcm2708_probe(struct platform_device *pdev) +{ + struct sdhci_host *host; + struct resource *iomem; + struct sdhci_bcm2708_priv *host_priv; + int ret; + + BUG_ON(pdev == NULL); + + iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!iomem) { + ret = -ENOMEM; + goto err; + } + + if (resource_size(iomem) != 0x100) + dev_err(&pdev->dev, "Invalid iomem size. You may " + "experience problems.\n"); + + if (pdev->dev.parent) + host = sdhci_alloc_host(pdev->dev.parent, + sizeof(struct sdhci_bcm2708_priv)); + else + host = sdhci_alloc_host(&pdev->dev, + sizeof(struct sdhci_bcm2708_priv)); + + if (IS_ERR(host)) { + ret = PTR_ERR(host); + goto err; + } + + host->hw_name = "BCM2708_Arasan"; + host->ops = &sdhci_bcm2708_ops; + host->irq = platform_get_irq(pdev, 0); + + host->quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION | + SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK; +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + host->flags = SDHCI_USE_PLATDMA; +#endif + + if (!request_mem_region(iomem->start, resource_size(iomem), + mmc_hostname(host->mmc))) { + dev_err(&pdev->dev, "cannot request region\n"); + ret = -EBUSY; + goto err_request; + } + + host->ioaddr = ioremap(iomem->start, resource_size(iomem)); + if (!host->ioaddr) { + dev_err(&pdev->dev, "failed to remap registers\n"); + ret = -ENOMEM; + goto err_remap; + } + + host_priv = SDHCI_HOST_PRIV(host); + + host_priv->power_state = POWER_ON; + ret = bcm_power_open(&host_priv->power_handle); + if (ret != 0) + goto err_power; + +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + host_priv->dma_wanted = 0; +#ifdef CHECK_DMA_USE + host_priv->dmas_pending = 0; + host_priv->when_started = 0; + host_priv->when_reset = 0; + host_priv->when_stopped = 0; +#endif + host_priv->sg_ix = 0; + host_priv->sg_done = 0; + host_priv->complete = NULL; + host_priv->dma_waits = SDHCI_BCM_DMA_WAITS; + + host_priv->cb_base = dma_alloc_writecombine(&pdev->dev, SZ_4K, + &host_priv->cb_handle, + GFP_KERNEL); + if (!host_priv->cb_base) { + dev_err(&pdev->dev, "cannot allocate DMA CBs\n"); + ret = -ENOMEM; + goto err_alloc_cb; + } + + ret = bcm_dma_chan_alloc(BCM_DMA_FEATURE_FAST, + &host_priv->dma_chan_base, + &host_priv->dma_irq); + if (ret < 0) { + dev_err(&pdev->dev, "couldn't allocate a DMA channel\n"); + goto err_add_dma; + } + host_priv->dma_chan = ret; + + ret = request_irq(host_priv->dma_irq, sdhci_bcm2708_dma_irq, + IRQF_SHARED, DRIVER_NAME " (dma)", host); + if (ret) { + dev_err(&pdev->dev, "cannot set DMA IRQ\n"); + goto err_add_dma_irq; + } + DBG("DMA CBs %p handle %08X DMA%d %p DMA IRQ %d\n", + host_priv->cb_base, (unsigned)host_priv->cb_handle, + host_priv->dma_chan, host_priv->dma_chan_base, + host_priv->dma_irq); +#endif + + ret = sdhci_add_host(host); + if (ret) + goto err_add_host; + + platform_set_drvdata(pdev, host); + ret = device_create_file(&pdev->dev, &dev_attr_use_dma); + ret = device_create_file(&pdev->dev, &dev_attr_dma_wait); + ret = device_create_file(&pdev->dev, &dev_attr_status); + + printk(KERN_INFO "%s: BCM2708 SDHC host at 0x%08llx DMA %d IRQ %d\n", + mmc_hostname(host->mmc), (unsigned long long)iomem->start, + host_priv->dma_chan, host_priv->dma_irq); + + return 0; + +err_add_host: +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + free_irq(host_priv->dma_irq, host); +err_add_dma_irq: + bcm_dma_chan_free(host_priv->dma_chan); +err_add_dma: + dma_free_writecombine(&pdev->dev, SZ_4K, host_priv->cb_base, + host_priv->cb_handle); +err_alloc_cb: +#endif + bcm_power_close(host_priv->power_handle); +err_power: + iounmap(host->ioaddr); +err_remap: + release_mem_region(iomem->start, resource_size(iomem)); +err_request: + sdhci_free_host(host); +err: + dev_err(&pdev->dev, "probe failed, err %d\n", ret); + return ret; +} + +static int __devexit sdhci_bcm2708_remove(struct platform_device *pdev) +{ + struct sdhci_host *host = platform_get_drvdata(pdev); + struct resource *iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + struct sdhci_bcm2708_priv *host_priv = SDHCI_HOST_PRIV(host); + int dead; + u32 scratch; + + dead = 0; + scratch = sdhci_bcm2708_readl(host, SDHCI_INT_STATUS); + if (scratch == (u32)-1) + dead = 1; + + device_remove_file(&pdev->dev, &dev_attr_status); + device_remove_file(&pdev->dev, &dev_attr_dma_wait); + device_remove_file(&pdev->dev, &dev_attr_use_dma); + +#ifdef CONFIG_MMC_SDHCI_BCM2708_DMA + free_irq(host_priv->dma_irq, host); + dma_free_writecombine(&pdev->dev, SZ_4K, host_priv->cb_base, + host_priv->cb_handle); +#endif + bcm_power_close(host_priv->power_handle); + sdhci_remove_host(host, dead); + iounmap(host->ioaddr); + release_mem_region(iomem->start, resource_size(iomem)); + sdhci_free_host(host); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver sdhci_bcm2708_driver = { + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, + .probe = sdhci_bcm2708_probe, + .remove = __devexit_p(sdhci_bcm2708_remove), + +#ifdef CONFIG_PM + .suspend = sdhci_bcm2708_suspend, + .resume = sdhci_bcm2708_resume, +#endif + +}; + +/*****************************************************************************\ + * * + * Driver init/exit * + * * +\*****************************************************************************/ + +static int __init sdhci_drv_init(void) +{ + return platform_driver_register(&sdhci_bcm2708_driver); +} + +static void __exit sdhci_drv_exit(void) +{ + platform_driver_unregister(&sdhci_bcm2708_driver); +} + +module_init(sdhci_drv_init); +module_exit(sdhci_drv_exit); + +MODULE_DESCRIPTION("Secure Digital Host Controller Interface platform driver"); +MODULE_AUTHOR("Broadcom "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:"DRIVER_NAME); + --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -27,6 +27,7 @@ #include #include +#include #include "sdhci.h" @@ -66,6 +67,7 @@ static inline int sdhci_runtime_pm_put(s } #endif + static void sdhci_dumpregs(struct sdhci_host *host) { pr_debug(DRIVER_NAME ": =========== REGISTER DUMP (%s)===========\n", @@ -150,6 +152,9 @@ static void sdhci_set_card_detection(str (host->mmc->caps & MMC_CAP_NONREMOVABLE)) return; + if (host->quirks2 & SDHCI_QUIRK2_OWN_CARD_DETECTION) + return; + present = sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT; irqs = present ? SDHCI_INT_CARD_REMOVE : SDHCI_INT_CARD_INSERT; @@ -299,7 +304,7 @@ static void sdhci_read_block_pio(struct u32 uninitialized_var(scratch); u8 *buf; - DBG("PIO reading\n"); + DBG("PIO reading %db\n", host->data->blksz); blksize = host->data->blksz; chunk = 0; @@ -344,7 +349,7 @@ static void sdhci_write_block_pio(struct u32 scratch; u8 *buf; - DBG("PIO writing\n"); + DBG("PIO writing %db\n", host->data->blksz); blksize = host->data->blksz; chunk = 0; @@ -383,19 +388,28 @@ static void sdhci_write_block_pio(struct local_irq_restore(flags); } -static void sdhci_transfer_pio(struct sdhci_host *host) +static void sdhci_transfer_pio(struct sdhci_host *host, u32 intstate) { u32 mask; + u32 state = 0; + u32 intmask; + int available; BUG_ON(!host->data); if (host->blocks == 0) return; - if (host->data->flags & MMC_DATA_READ) + if (host->data->flags & MMC_DATA_READ) { mask = SDHCI_DATA_AVAILABLE; - else + intmask = SDHCI_INT_DATA_AVAIL; + } else { mask = SDHCI_SPACE_AVAILABLE; + intmask = SDHCI_INT_SPACE_AVAIL; + } + + /* initially we can see whether we can procede using intstate */ + available = (intstate & intmask); /* * Some controllers (JMicron JMB38x) mess up the buffer bits @@ -406,7 +420,7 @@ static void sdhci_transfer_pio(struct sd (host->data->blocks == 1)) mask = ~0; - while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { + while (available) { if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) udelay(100); @@ -418,9 +432,11 @@ static void sdhci_transfer_pio(struct sd host->blocks--; if (host->blocks == 0) break; + state = sdhci_readl(host, SDHCI_PRESENT_STATE); + available = state & mask; } - DBG("PIO transfer complete.\n"); + DBG("PIO transfer complete - %d blocks left.\n", host->blocks); } static char *sdhci_kmap_atomic(struct scatterlist *sg, unsigned long *flags) @@ -693,7 +709,9 @@ static void sdhci_set_transfer_irqs(stru u32 pio_irqs = SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL; u32 dma_irqs = SDHCI_INT_DMA_END | SDHCI_INT_ADMA_ERROR; - if (host->flags & SDHCI_REQ_USE_DMA) + /* platform DMA will begin on receipt of PIO irqs */ + if ((host->flags & SDHCI_REQ_USE_DMA) && + !(host->flags & SDHCI_USE_PLATDMA)) sdhci_clear_set_irqs(host, pio_irqs, dma_irqs); else sdhci_clear_set_irqs(host, dma_irqs, pio_irqs); @@ -725,44 +743,25 @@ static void sdhci_prepare_data(struct sd host->data_early = 0; host->data->bytes_xfered = 0; - if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) + if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA | SDHCI_USE_PLATDMA)) host->flags |= SDHCI_REQ_USE_DMA; /* * FIXME: This doesn't account for merging when mapping the * scatterlist. */ - if (host->flags & SDHCI_REQ_USE_DMA) { - int broken, i; - struct scatterlist *sg; - - broken = 0; - if (host->flags & SDHCI_USE_ADMA) { - if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) - broken = 1; - } else { - if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE) - broken = 1; - } - - if (unlikely(broken)) { - for_each_sg(data->sg, sg, data->sg_len, i) { - if (sg->length & 0x3) { - DBG("Reverting to PIO because of " - "transfer size (%d)\n", - sg->length); - host->flags &= ~SDHCI_REQ_USE_DMA; - break; - } - } - } - } /* * The assumption here being that alignment is the same after * translation to device address space. */ - if (host->flags & SDHCI_REQ_USE_DMA) { + if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_PLATDMA)) == + (SDHCI_REQ_USE_DMA | SDHCI_USE_PLATDMA)) { + + if (! sdhci_platdma_dmaable(host, data)) + host->flags &= ~SDHCI_REQ_USE_DMA; + + } else if (host->flags & SDHCI_REQ_USE_DMA) { int broken, i; struct scatterlist *sg; @@ -821,7 +820,8 @@ static void sdhci_prepare_data(struct sd */ WARN_ON(1); host->flags &= ~SDHCI_REQ_USE_DMA; - } else { + } else + if (!(host->flags & SDHCI_USE_PLATDMA)) { WARN_ON(sg_cnt != 1); sdhci_writel(host, sg_dma_address(data->sg), SDHCI_DMA_ADDRESS); @@ -837,11 +837,13 @@ static void sdhci_prepare_data(struct sd if (host->version >= SDHCI_SPEC_200) { ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); ctrl &= ~SDHCI_CTRL_DMA_MASK; - if ((host->flags & SDHCI_REQ_USE_DMA) && - (host->flags & SDHCI_USE_ADMA)) - ctrl |= SDHCI_CTRL_ADMA32; - else - ctrl |= SDHCI_CTRL_SDMA; + if (! (host->flags & SDHCI_USE_PLATDMA)) { + if ((host->flags & SDHCI_REQ_USE_DMA) && + (host->flags & SDHCI_USE_ADMA)) + ctrl |= SDHCI_CTRL_ADMA32; + else + ctrl |= SDHCI_CTRL_SDMA; + } sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } @@ -893,7 +895,8 @@ static void sdhci_set_transfer_mode(stru if (data->flags & MMC_DATA_READ) mode |= SDHCI_TRNS_READ; - if (host->flags & SDHCI_REQ_USE_DMA) + if ((host->flags & SDHCI_REQ_USE_DMA) && + !(host->flags & SDHCI_USE_PLATDMA)) mode |= SDHCI_TRNS_DMA; sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); @@ -909,13 +912,16 @@ static void sdhci_finish_data(struct sdh host->data = NULL; if (host->flags & SDHCI_REQ_USE_DMA) { - if (host->flags & SDHCI_USE_ADMA) - sdhci_adma_table_post(host, data); - else { + /* we may have to abandon an ongoing platform DMA */ + if (host->flags & SDHCI_USE_PLATDMA) + sdhci_platdma_reset(host, data); + + if (host->flags & (SDHCI_USE_PLATDMA | SDHCI_USE_SDMA)) { dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len, (data->flags & MMC_DATA_READ) ? DMA_FROM_DEVICE : DMA_TO_DEVICE); - } + } else if (host->flags & SDHCI_USE_ADMA) + sdhci_adma_table_post(host, data); } /* @@ -985,10 +991,16 @@ static void sdhci_send_command(struct sd timeout--; mdelay(1); } + DBG("send cmd %d - wait 0x%X irq 0x%x\n", cmd->opcode, mask, + sdhci_readl(host, SDHCI_INT_STATUS)); mod_timer(&host->timer, jiffies + 10 * HZ); host->cmd = cmd; + if (host->last_cmdop == MMC_APP_CMD) + host->last_cmdop = -cmd->opcode; + else + host->last_cmdop = cmd->opcode; sdhci_prepare_data(host, cmd); @@ -1234,6 +1246,35 @@ static int sdhci_set_power(struct sdhci_ return power; } +/* Power on or off the circuitary supporting the register set */ +static int sdhci_set_plat_power(struct sdhci_host *host, int power_mode) +{ + if (host->ops->set_plat_power) + return host->ops->set_plat_power(host, power_mode); + else + return 0; +} + +/* Click forwards one step towards fully on */ +static int sdhci_enable(struct mmc_host *mmc) +{ + struct sdhci_host *host; + + host = mmc_priv(mmc); + + return host->ops->enable? host->ops->enable(host): 0; +} + +/* Click backwards one step towards fully off */ +static int sdhci_disable(struct mmc_host *mmc, int lazy) +{ + struct sdhci_host *host; + + host = mmc_priv(mmc); + + return host->ops->disable? host->ops->disable(host, lazy): 0; +} + /*****************************************************************************\ * * * MMC callbacks * @@ -1250,6 +1291,8 @@ static void sdhci_request(struct mmc_hos sdhci_runtime_pm_get(host); + sdhci_runtime_pm_get(host); + spin_lock_irqsave(&host->lock, flags); WARN_ON(host->mrq != NULL); @@ -1314,6 +1357,7 @@ static void sdhci_do_set_ios(struct sdhc { unsigned long flags; int vdd_bit = -1; + int rc; u8 ctrl; spin_lock_irqsave(&host->lock, flags); @@ -1383,7 +1427,7 @@ static void sdhci_do_set_ios(struct sdhc else ctrl &= ~SDHCI_CTRL_HISPD; - if (host->version >= SDHCI_SPEC_300) { + if (host->version >= SDHCI_SPEC_300 && !(host->ops->uhs_broken)) { u16 clk, ctrl_2; unsigned int clock; @@ -1474,6 +1518,12 @@ static void sdhci_do_set_ios(struct sdhc mmiowb(); spin_unlock_irqrestore(&host->lock, flags); + + if (ios->power_mode == MMC_POWER_OFF) { + do + rc = sdhci_set_plat_power(host, ios->power_mode); + while (rc == -EINTR); + } } static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) @@ -1934,6 +1984,8 @@ static const struct mmc_host_ops sdhci_o .start_signal_voltage_switch = sdhci_start_signal_voltage_switch, .execute_tuning = sdhci_execute_tuning, .enable_preset_value = sdhci_enable_preset_value, + .enable = sdhci_enable, + .disable = sdhci_disable, }; /*****************************************************************************\ @@ -2091,10 +2143,13 @@ static void sdhci_cmd_irq(struct sdhci_h BUG_ON(intmask == 0); if (!host->cmd) { - pr_err("%s: Got command interrupt 0x%08x even " - "though no command operation was in progress.\n", - mmc_hostname(host->mmc), (unsigned)intmask); - sdhci_dumpregs(host); + if (!(host->ops->extra_ints)) { + pr_err("%s: Got command interrupt 0x%08x even " + "though no command operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + sdhci_dumpregs(host); + } else + DBG("cmd irq 0x%08x cmd complete\n", (unsigned)intmask); return; } @@ -2164,6 +2219,19 @@ static void sdhci_show_adma_error(struct static void sdhci_show_adma_error(struct sdhci_host *host) { } #endif +static void sdhci_data_end(struct sdhci_host *host) +{ + if (host->cmd) { + /* + * Data managed to finish before the + * command completed. Make sure we do + * things in the proper order. + */ + host->data_early = 1; + } else + sdhci_finish_data(host); +} + static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) { u32 command; @@ -2192,35 +2260,57 @@ static void sdhci_data_irq(struct sdhci_ return; } } - - pr_err("%s: Got data interrupt 0x%08x even " - "though no data operation was in progress.\n", - mmc_hostname(host->mmc), (unsigned)intmask); - sdhci_dumpregs(host); - - return; - } - - if (intmask & SDHCI_INT_DATA_TIMEOUT) - host->data->error = -ETIMEDOUT; - else if (intmask & SDHCI_INT_DATA_END_BIT) - host->data->error = -EILSEQ; - else if ((intmask & SDHCI_INT_DATA_CRC) && - SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) - != MMC_BUS_TEST_R) - host->data->error = -EILSEQ; - else if (intmask & SDHCI_INT_ADMA_ERROR) { + + if (!(host->ops->extra_ints)) { + pr_err("%s: Got data interrupt 0x%08x even " + "though no data operation was in progress.\n", + mmc_hostname(host->mmc), (unsigned)intmask); + sdhci_dumpregs(host); + } else + DBG("data irq 0x%08x but no data\n", (unsigned)intmask); + + return; + } + + if (intmask & SDHCI_INT_DATA_TIMEOUT) + host->data->error = -ETIMEDOUT; + else if (intmask & SDHCI_INT_DATA_END_BIT) { + DBG("end error in cmd %d\n", host->last_cmdop); + if (host->ops->spurious_crc_acmd51 && + host->last_cmdop == -SD_APP_SEND_SCR) { + DBG("ignoring spurious data_end_bit error\n"); + intmask = SDHCI_INT_DATA_AVAIL|SDHCI_INT_DATA_END; + } else + host->data->error = -EILSEQ; + } else if ((intmask & SDHCI_INT_DATA_CRC) && + SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND)) + != MMC_BUS_TEST_R) { + DBG("crc error in cmd %d\n", host->last_cmdop); + if (host->ops->spurious_crc_acmd51 && + host->last_cmdop == -SD_APP_SEND_SCR) { + DBG("ignoring spurious data_crc_bit error\n"); + intmask = SDHCI_INT_DATA_AVAIL|SDHCI_INT_DATA_END; + } else + host->data->error = -EILSEQ; + } else if (intmask & SDHCI_INT_ADMA_ERROR) { pr_err("%s: ADMA error\n", mmc_hostname(host->mmc)); - sdhci_show_adma_error(host); - host->data->error = -EIO; - } - - if (host->data->error) - sdhci_finish_data(host); - else { - if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL)) - sdhci_transfer_pio(host); - + sdhci_show_adma_error(host); + host->data->error = -EIO; + } + + if (host->data->error) { + DBG("finish request early on error %d\n", host->data->error); + sdhci_finish_data(host); + } else { + if (intmask & (SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL)) { + if (host->flags & SDHCI_REQ_USE_DMA) { + /* possible only in PLATDMA mode */ + sdhci_platdma_avail(host, &intmask, + &sdhci_data_end); + } else + sdhci_transfer_pio(host, intmask); + } + /* * We currently don't do anything fancy with DMA * boundaries, but as we can't disable the feature @@ -2249,16 +2339,7 @@ static void sdhci_data_irq(struct sdhci_ } if (intmask & SDHCI_INT_DATA_END) { - if (host->cmd) { - /* - * Data managed to finish before the - * command completed. Make sure we do - * things in the proper order. - */ - host->data_early = 1; - } else { - sdhci_finish_data(host); - } + sdhci_data_end(host); } } } @@ -2314,6 +2395,22 @@ static irqreturn_t sdhci_irq(int irq, vo tasklet_schedule(&host->card_tasklet); } + if (intmask & SDHCI_INT_ERROR_MASK & ~SDHCI_INT_ERROR) + DBG("controller reports error 0x%x -" + "%s%s%s%s%s%s%s%s%s%s", + intmask, + intmask & SDHCI_INT_TIMEOUT? " timeout": "", + intmask & SDHCI_INT_CRC ? " crc": "", + intmask & SDHCI_INT_END_BIT? " endbit": "", + intmask & SDHCI_INT_INDEX? " index": "", + intmask & SDHCI_INT_DATA_TIMEOUT? " data_timeout": "", + intmask & SDHCI_INT_DATA_CRC? " data_crc": "", + intmask & SDHCI_INT_DATA_END_BIT? " data_endbit": "", + intmask & SDHCI_INT_BUS_POWER? " buspower": "", + intmask & SDHCI_INT_ACMD12ERR? " acmd12": "", + intmask & SDHCI_INT_ADMA_ERROR? " adma": "" + ); + if (intmask & SDHCI_INT_CMD_MASK) { sdhci_writel(host, intmask & SDHCI_INT_CMD_MASK, SDHCI_INT_STATUS); @@ -2535,6 +2632,90 @@ EXPORT_SYMBOL_GPL(sdhci_runtime_resume_h #endif +#ifdef CONFIG_PM_RUNTIME + +static int sdhci_runtime_pm_get(struct sdhci_host *host) +{ + return pm_runtime_get_sync(host->mmc->parent); +} + +static int sdhci_runtime_pm_put(struct sdhci_host *host) +{ + pm_runtime_mark_last_busy(host->mmc->parent); + return pm_runtime_put_autosuspend(host->mmc->parent); +} + +int sdhci_runtime_suspend_host(struct sdhci_host *host) +{ + unsigned long flags; + int ret = 0; + + /* Disable tuning since we are suspending */ + if (host->version >= SDHCI_SPEC_300 && + host->tuning_mode == SDHCI_TUNING_MODE_1) { + del_timer_sync(&host->tuning_timer); + host->flags &= ~SDHCI_NEEDS_RETUNING; + } + + spin_lock_irqsave(&host->lock, flags); + sdhci_mask_irqs(host, SDHCI_INT_ALL_MASK); + spin_unlock_irqrestore(&host->lock, flags); + + synchronize_irq(host->irq); + + spin_lock_irqsave(&host->lock, flags); + host->runtime_suspended = true; + spin_unlock_irqrestore(&host->lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(sdhci_runtime_suspend_host); + +int sdhci_runtime_resume_host(struct sdhci_host *host) +{ + unsigned long flags; + int ret = 0, host_flags = host->flags; + + if (host_flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) { + if (host->ops->enable_dma) + host->ops->enable_dma(host); + } + + sdhci_init(host, 0); + + /* Force clock and power re-program */ + host->pwr = 0; + host->clock = 0; + sdhci_do_set_ios(host, &host->mmc->ios); + + sdhci_do_start_signal_voltage_switch(host, &host->mmc->ios); + if (host_flags & SDHCI_PV_ENABLED) + sdhci_do_enable_preset_value(host, true); + + /* Set the re-tuning expiration flag */ + if ((host->version >= SDHCI_SPEC_300) && host->tuning_count && + (host->tuning_mode == SDHCI_TUNING_MODE_1)) + host->flags |= SDHCI_NEEDS_RETUNING; + + spin_lock_irqsave(&host->lock, flags); + + host->runtime_suspended = false; + + /* Enable SDIO IRQ */ + if ((host->flags & SDHCI_SDIO_IRQ_ENABLED)) + sdhci_enable_sdio_irq_nolock(host, true); + + /* Enable Card Detection */ + sdhci_enable_card_detection(host); + + spin_unlock_irqrestore(&host->lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(sdhci_runtime_resume_host); + +#endif + /*****************************************************************************\ * * * Device allocation/registration * @@ -2738,7 +2919,7 @@ int sdhci_add_host(struct sdhci_host *ho /* Auto-CMD23 stuff only works in ADMA or PIO. */ if ((host->version >= SDHCI_SPEC_300) && ((host->flags & SDHCI_USE_ADMA) || - !(host->flags & SDHCI_USE_SDMA))) { + !(host->flags & SDHCI_USE_SDMA) )) { host->flags |= SDHCI_AUTO_CMD23; DBG("%s: Auto-CMD23 available\n", mmc_hostname(mmc)); } else { @@ -2800,6 +2981,15 @@ int sdhci_add_host(struct sdhci_host *ho else mmc->power_notify_type = MMC_HOST_PW_NOTIFY_NONE; + /* + * If Power Off Notify capability is enabled by the host, + * set notify to short power off notify timeout value. + */ + if (mmc->caps2 & MMC_CAP2_POWEROFF_NOTIFY) + mmc->power_notify_type = MMC_HOST_PW_NOTIFY_SHORT; + else + mmc->power_notify_type = MMC_HOST_PW_NOTIFY_NONE; + /* Initial value for re-tuning timer count */ host->tuning_count = (caps[1] & SDHCI_RETUNING_TIMER_COUNT_MASK) >> SDHCI_RETUNING_TIMER_COUNT_SHIFT; @@ -2875,6 +3065,9 @@ int sdhci_add_host(struct sdhci_host *ho mmc->caps |= MMC_CAP_MAX_CURRENT_200; } + if(host->ops->voltage_broken) + ocr_avail |= MMC_VDD_29_30 | MMC_VDD_30_31; + mmc->ocr_avail = ocr_avail; mmc->ocr_avail_sdio = ocr_avail; if (host->ocr_avail_sdio) --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -274,6 +274,24 @@ struct sdhci_ops { void (*platform_reset_enter)(struct sdhci_host *host, u8 mask); void (*platform_reset_exit)(struct sdhci_host *host, u8 mask); int (*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs); + + int (*enable)(struct sdhci_host *mmc); + int (*disable)(struct sdhci_host *mmc, int lazy); + int (*set_plat_power)(struct sdhci_host *mmc, + int power_mode); + + int (*pdma_able)(struct sdhci_host *host, + struct mmc_data *data); + void (*pdma_avail)(struct sdhci_host *host, + unsigned int *ref_intmask, + void(*complete)(struct sdhci_host *)); + void (*pdma_reset)(struct sdhci_host *host, + struct mmc_data *data); + unsigned int (*extra_ints)(struct sdhci_host *host); + unsigned int (*spurious_crc_acmd51)(struct sdhci_host *host); + unsigned int (*voltage_broken)(struct sdhci_host *host); + unsigned int (*uhs_broken)(struct sdhci_host *host); + void (*hw_reset)(struct sdhci_host *host); }; @@ -383,6 +401,34 @@ extern void sdhci_enable_irq_wakeups(str #ifdef CONFIG_PM_RUNTIME extern int sdhci_runtime_suspend_host(struct sdhci_host *host); extern int sdhci_runtime_resume_host(struct sdhci_host *host); +#endif + +static inline int /*bool*/ +sdhci_platdma_dmaable(struct sdhci_host *host, struct mmc_data *data) +{ + if (host->ops->pdma_able) + return host->ops->pdma_able(host, data); + else + return 1; +} +static inline void +sdhci_platdma_avail(struct sdhci_host *host, unsigned int *ref_intmask, + void(*completion_callback)(struct sdhci_host *)) +{ + if (host->ops->pdma_avail) + host->ops->pdma_avail(host, ref_intmask, completion_callback); +} + +static inline void +sdhci_platdma_reset(struct sdhci_host *host, struct mmc_data *data) +{ + if (host->ops->pdma_reset) + host->ops->pdma_reset(host, data); +} + +#ifdef CONFIG_PM_RUNTIME +extern int sdhci_runtime_suspend_host(struct sdhci_host *host); +extern int sdhci_runtime_resume_host(struct sdhci_host *host); #endif #endif /* __SDHCI_HW_H */ --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -90,6 +90,8 @@ struct sdhci_host { unsigned int quirks2; /* More deviations from spec. */ +#define SDHCI_QUIRK2_OWN_CARD_DETECTION (1<<0) + int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ @@ -120,6 +122,7 @@ struct sdhci_host { #define SDHCI_PV_ENABLED (1<<8) /* Preset value enabled */ #define SDHCI_SDIO_IRQ_ENABLED (1<<9) /* SDIO irq enabled */ #define SDHCI_HS200_NEEDS_TUNING (1<<10) /* HS200 needs tuning */ +#define SDHCI_USE_PLATDMA (1<<11) /* Host uses 3rd party DMA */ unsigned int version; /* SDHCI spec. version */ @@ -131,9 +134,9 @@ struct sdhci_host { u8 pwr; /* Current voltage */ bool runtime_suspended; /* Host is runtime suspended */ - struct mmc_request *mrq; /* Current request */ struct mmc_command *cmd; /* Current command */ + int last_cmdop; /* Opcode of last cmd sent */ struct mmc_data *data; /* Current data request */ unsigned int data_early:1; /* Data finished before cmd */