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Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/Kconfig')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/Kconfig | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/Kconfig b/target/linux/ubicom32/files/arch/ubicom32/Kconfig new file mode 100644 index 000000000..acc611630 --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/Kconfig @@ -0,0 +1,403 @@ +# +# For a description of the syntax of this configuration file, +# see Documentation/kbuild/kconfig-language.txt. +# + +mainmenu "uClinux/ubicom32 (w/o MMU) Kernel Configuration" + +config UBICOM32 + bool + select HAVE_OPROFILE + default y + +config RAMKERNEL + bool + default y + +config CPU_BIG_ENDIAN + bool + default y + +config FORCE_MAX_ZONEORDER + int + default "14" + +config HAVE_CLK + bool + default y + +config MMU + bool + default n + +config FPU + bool + default n + +config ZONE_DMA + bool + default y + +config RWSEM_GENERIC_SPINLOCK + bool + default y + +config RWSEM_XCHGADD_ALGORITHM + bool + default n + +config ARCH_HAS_ILOG2_U32 + bool + default n + +config ARCH_HAS_ILOG2_U64 + bool + default n + +config GENERIC_FIND_NEXT_BIT + bool + default y + +config GENERIC_GPIO + bool + default y + +config GPIOLIB + bool + default y + +config GENERIC_HWEIGHT + bool + default y + +config GENERIC_HARDIRQS + bool + default y + +config STACKTRACE_SUPPORT + bool + default y + +config LOCKDEP_SUPPORT + bool + default y + +config GENERIC_CALIBRATE_DELAY + bool + default y + +config GENERIC_TIME + bool + default y + +config TIME_LOW_RES + bool + default y + +config GENERIC_CLOCKEVENTS + bool + default y + +config GENERIC_CLOCKEVENTS_BROADCAST + bool + depends on GENERIC_CLOCKEVENTS + default y if SMP && !LOCAL_TIMERS + +config NO_IOPORT + def_bool y + +config ARCH_SUPPORTS_AOUT + def_bool y + +config IRQ_PER_CPU + bool + default y + +config SCHED_NO_NO_OMIT_FRAME_POINTER + bool + default y + +config UBICOM32_PLIO + bool + default n + +menu "Processor type and features" + +comment "Processor type will be selected by Board" + +config UBICOM32_V3 + bool + help + Ubicom IP5xxx series processor support. + +config UBICOM32_V4 + bool + help + Ubicom IP7xxx series processor support. + +comment "Board" +choice + prompt "Board type" + help + Select your board. + +config NOBOARD + bool "No board selected" + help + Default. Don't select any board specific config. Will not build unless you change! + +# Add your boards here +source "arch/ubicom32/mach-ip5k/Kconfig" +source "arch/ubicom32/mach-ip7k/Kconfig" + +endchoice + +comment "Kernel Options" +config SMP + bool "Symmetric multi-processing support" + select USE_GENERIC_SMP_HELPERS + default n + help + Enables multithreading support. Enabling SMP support increases + the size of system data structures. SMP support can have either + positive or negative impact on performance depending on workloads. + + If you do not know what to do here, say N. +config OLD_40400010_SYSTEM_CALL + bool "Provide old system call interface at 0x40400010" + default y + help + Provides the old system call interface, does not affect the + new system_call interface. + +config NR_CPUS + int "Number of configured CPUs" + range 2 32 + default 2 + depends on SMP + help + Upper bound on the number of CPUs. Space is reserved + at compile time for this many CPUs. + +config LOCAL_TIMERS + bool "Use local timer interrupts" + depends on SMP + default y + help + Enable support for local timers on SMP platforms, rather then the + legacy IPI broadcast method. Local timers allows the system + accounting to be spread across the timer interval, preventing a + "thundering herd" at every timer tick. A physical timer is allocated + per cpu. + +config TIMER_EXTRA_ALLOC + int "Number of additional physical timer events to create" + depends on GENERIC_CLOCKEVENTS + default 0 + help + The Ubicom32 processor has a number of event timers that can be wrapped + in Linux clock event structures (assuming that the timers are not being + used for another purpose). Based on the value of LOCAL_TIMERS, either + 2 timers will be used or a timer will be used for every CPU. This value + allows the programmer to select additional timers over that amount. + +config IRQSTACKS + bool "Create separate stacks for interrupt handling" + default n + help + Selecting this causes interrupts to be created on a separate + stack instead of nesting the interrupts on the kernel stack. + +config IRQSTACKS_USEOCM + bool "Use OCM for interrupt stacks" + default n + depends on IRQSTACKS + help + Selecting this cause the interrupt stacks to be placed in OCM + reducing cache misses at the expense of using the OCM for servicing + interrupts. + +menu "OCM Instruction Heap" + +config OCM_MODULES_RESERVATION + int "OCM Instruction heap reservation. 0-192 kB" + range 0 192 + default "0" + help + The minimum amount of OCM memory to reserve for kernel loadable module + code. If you are not using this memory it cannot be used for anything + else. Leave it as 0 if you have prebuilt modules that are compiled with + OCM support. + +config OCM_MODULES_MAY_CONSUME_REMAINING_CODESPACE + bool "Give all unused ocm code space to the ocm instruction heap." + default n + help + Allow the OCM instruction heap allocation to consume any remaining + unused OCM code space. The result of this is that you will not have + and deterministic results, but you will not have any waste either. + +config OCM_MODULES_FALLBACK_TO_DDR + bool "Loadable Modules requiring OCM may fallback to use DDR." + default n + help + If a module cannot get the OCM code it requires allow DDR to + be used instead. +endmenu + +config HZ + int "Frequency of 'jiffies' (for polling)" + default 1000 + help + 100 is common for embedded systems, but 1000 allows + you to do more drivers without actually having + interrupts working properly. + +comment "RAM configuration" + +config MIN_RAMSIZE + hex "Minimum Size of RAM (in bytes)" + range 0x01000000 0x08000000 + default "0x02000000" + help + Define the minimum acceptable size of the system + RAM. Must be at least 16MB (0x01000000) + +comment "Build options" +config LINKER_RELAXATION + bool "Linker Relaxation" + default y + help + Turns on linker relaxation that will produce smaller + faster code. Increases link time. + +comment "Driver options" +menu "PCI Bus" +config PCI + bool "PCI bus" + default true + help + Enable/Disable PCI bus + source "drivers/pci/Kconfig" + + +config PCI_DEV0_IDSEL + hex "slot 0 address" + depends on PCI + default "0x01000000" + help + Slot 0 address. This address should correspond to the address line + which the IDSEL bit for this slot is connected to. + +config PCI_DEV1_IDSEL + hex "slot 1 address" + depends on PCI + default "0x02000000" + help + Slot 1 address. This address should correspond to the address line + which the IDSEL bit for this slot is connected to. +endmenu +# End PCI + +menu "Input devices" +config UBICOM_INPUT + bool "Ubicom polled GPIO input driver" + select INPUT + select INPUT_POLLDEV + help + Polling input driver, much like the GPIO input driver, except that it doesn't + rely on interrupts. It will report events via the input subsystem. + default n + +config UBICOM_INPUT_I2C + bool "Ubicom polled GPIO input driver over I2C" + select INPUT + select INPUT_POLLDEV + help + Polling input driver, much like the PCA953x driver, it can support a variety of + different I2C I/O expanders. This device polls the I2C I/O expander for events + and reports them via the input subsystem. + default n +endmenu +# Input devices + +source "arch/ubicom32/mach-common/Kconfig.switch" + +menu "Misc devices" +config UBICOM_HID + bool "Ubicom HID driver" + select INPUT + select INPUT_POLLDEV + select LCD_CLASS_DEVICE + help + Driver for HID chip found on some Ubicom reference designs. This chip handles + PWM, button input, and IR remote control. It registers as an input device and + a backlight device. + default n +endmenu +# Misc devices + +config CMDLINE_BOOL + bool "Built-in kernel command line" + default n + help + Allow for specifying boot arguments to the kernel at + build time. On some systems (e.g. embedded ones), it is + necessary or convenient to provide some or all of the + kernel boot arguments with the kernel itself (that is, + to not rely on the boot loader to provide them.) + + To compile command line arguments into the kernel, + set this option to 'Y', then fill in the + the boot arguments in CONFIG_CMDLINE. + + Systems with fully functional boot loaders (i.e. non-embedded) + should leave this option set to 'N'. + +config CMDLINE + string "Built-in kernel command string" + depends on CMDLINE_BOOL + default "" + help + Enter arguments here that should be compiled into the kernel + image and used at boot time. If the boot loader provides a + command line at boot time, it is appended to this string to + form the full kernel command line, when the system boots. + + However, you can use the CONFIG_CMDLINE_OVERRIDE option to + change this behavior. + + In most cases, the command line (whether built-in or provided + by the boot loader) should specify the device for the root + file system. + +config CMDLINE_OVERRIDE + bool "Built-in command line overrides boot loader arguments" + default n + depends on CMDLINE_BOOL + help + Set this option to 'Y' to have the kernel ignore the boot loader + command line, and use ONLY the built-in command line. + + This is used to work around broken boot loaders. This should + be set to 'N' under normal conditions. + +endmenu +# End Processor type and features + +source "arch/ubicom32/Kconfig.debug" + +menu "Executable file formats" +source "fs/Kconfig.binfmt" +endmenu + +source "init/Kconfig" +source "kernel/Kconfig.preempt" +source "kernel/time/Kconfig" +source "mm/Kconfig" +source "net/Kconfig" +source "drivers/Kconfig" +source "fs/Kconfig" +source "security/Kconfig" +source "crypto/Kconfig" +source "lib/Kconfig" |