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#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/config-language.txt.
#

mainmenu "Linux/or32 Kernel Configuration"

config MMU
        bool
        default y

config ZONE_DMA
        bool
        default y

config UID16
        bool
        default y

config RWSEM_GENERIC_SPINLOCK
        bool
        default y

config GENERIC_CALIBRATE_DELAY
        bool
        default y

config RWSEM_XCHGADD_ALGORITHM
        bool
        default n

config GENERIC_HWEIGHT
        bool
        default y

config SCHED_NO_NO_OMIT_FRAME_POINTER
        bool
        default y

source "init/Kconfig"

config OR32
        bool
        default y

menu "Processor type and features"

choice 
        prompt "Subarchitecture/SoC type"
        default OR32_MARVIN

config  OR32_MARVIN
        bool "or1200/Marvin"
        help 
          Marvin SoC

          revision 0 prototype hardware implementation


config OR32_HIGHLAND
        bool "or1200/Highland"
        help
          Highland SoC

          revision 1

config OR32_GENERIC
        bool "or1200/Generic"
        help
          Generic or1200 platform

endchoice


config OR32_SYS_CLK
        int "System clock frequency [MHz]"
        default 100

config OR32_MEMORY_SIZE
        hex "System memory size [hex, bytes]"
        default 01000000

config OR32_RESERVED_MEM_SIZE
        hex "Reserved memory size [hex, bytes]"
        default 0
        help
          Amount of memory (in bytes) that will be left unused by Linux
          starting from MEMORY_SIZE-RESERVED_MEM_SIZE and ending at
          MEMORY_SIZE.

config OR32_FLASH_BOOT
        bool "Boot from FLASH"
        default n
        help
          This alows you have support for extreamly simple bootloader
          in the kernel. It will just copy kernel image from FLASH to RAM and
          start executing it.

config HIGHMEM
        bool "High memory support"

source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"

#
# Define implied and generic SoC options
#

config OR32_MC_VERSION
        int "Memory Controler Version (1 or 2)" if OR32_GENERIC
        range 1 2
        default "1" if OR32_MARVIN || OR32_GENERIC
        default "2" if OR32_HIGHLAND

config OR32_MC_INIT
        bool "Initilaze memory controler" if OR32_GENERIC
        default n
        ---help---
          This option controls memory controler initizalization

          When using bootloader, memory controler initialization is
          usualy done by boot the bootloader. Memory timings might not
          be ideal, so if you know the right timings it woun't hurt to
          enable it.

          If booting directly from flash you need to enable this option
          and if neccessery provide memory timings.

config OR32_HIGHLAND_DEFAULT_MEMORY_TIMINGS
        bool "Default Highland memory timings" if OR32_MC_INIT
        default n
        ---help---
          If you have Highland board with Micron MT48LC16M16A2 TC 75D
          memory than choose this option.
       
config OR32_GENERIC_MEMORY_TIMINGS
        bool "Specify memory timings" if OR32_MC_INIT
        default n
        ---help---
          This option allows you to specify memory timings for SDRAm & FLASH

source "arch/or32/Kconfig.mc2"
          
config OR32_ICACHE_ENABLED
        bool "Enable iCACHE"
        default n

config OR32_IC_SIZE
        int "iCACHE size [bytes]" if OR32_ICACHE_ENABLED
        default 8192 if OR32_ICACHE_ENABLED
        default 8192 if !OR32_ICACHE_ENABLED

config OR32_IC_LINE
        int "iCACHE line size [bytes]" if OR32_ICACHE_ENABLED
        default 16 if OR32_ICACHE_ENABLED
        default 16 if !OR32_ICACHE_ENABLED

config OR32_DCACHE_ENABLED
        bool "Enable dCACHE"
        default n

config OR32_DC_SIZE
        int "dCACHE size [bytes]" if OR32_DCACHE_ENABLED
        default 8192 if OR32_DCACHE_ENABLED
        default 8192 if !OR32_DCACHE_ENABLED

config OR32_DC_LINE
        int "dCACHE line size [bytes]" if OR32_DCACHE_ENABLED
        default 16 if OR32_DCACHE_ENABLED
        default 16 if !OR32_DCACHE_ENABLED

config OR32_ITLB_ENTRIES
        int "Number of iTLB entries" if OR32_GENERIC
        default "64"

config OR32_DTLB_ENTRIES
        int "Number of dTLB entries" if OR32_GENERIC
        default "64"

config OR32_NO_SPR_SR_DSX
        bool "use SPR_SR_DSX software emulation" if OR32_GENERIC
        default y
        help
          SPR_SR_DSX bit is status register bit indicating whether
          the last exception has happened in delay slot.        

          OpenRISC architecture makes it optional to have it implemented
          in hardware, and Marvin and Highland SoC do not have it.

          Say N here if you know that your OpenRISC processor has
          SPR_SR_DSX bit implemented. Say Y if you are unsure.


config OR32_ANONYMOUS
        bool "Enable anonymity"
        default n

menu "Debuging options"

config DEBUG_STACKOVERFLOW
        bool "Check for kernel stack overflow"
        default y
        help
          Make extra checks for space avaliable on stack in some
          critical functions. This will cause kernel to run a bit slower,
          but will catch most of kernel stack overruns and exit gracefuly.

          Say Y if you are unsure. 

config OR32_GUARD_PROTECTED_CORE
        bool "Write protect read only part of kernel"
        default y
        help
          Write to .text or .rodata sections is most probably kernel bug.
          Enabling this will cause an oops at the instruction that tries to
          corrupt kernel.
        
          This has no performance implication but should help locating bugs.

          Say Y if you are unsure.

config JUMP_UPON_UNHANDLED_EXCEPTION
        bool "Try to die gracefully"
        default y
        help
          Now this puts kernel into infinite loop after first oops. Till
          your kernel crashes this doesn't have any influence.

          Say Y if you are unsure.

config OR32_EXCEPTION_DEBUG
        bool "Print processor state at each exception"
        default n
        help
          This option will make your kernel unusable for all but kernel
          debugging.

          Say N if you are unsure.
        
config OR32_ESR_EXCEPTION_BUG_CHECK
        bool "Check for possible ESR exception bug"
        default n
        help
          This option enables some checks that might expose some problems
          in kernel.

          Say N if you are unsure.

endmenu

endmenu


# OpenRISC specific drivers

menu "OpenRISC specific drivers"

source "arch/or32/drivers/Kconfig"

endmenu

menu "Bus options"

config PCI
        bool "PCI support"
        default n
        help
          Find out whether your system includes a PCI bus. PCI is the name of
          a bus system, i.e. the way the CPU talks to the other stuff inside
          your box.  If you say Y here, the kernel will include drivers and
          infrastructure code to support PCI bus devices.

config PCI_DOMAINS
        bool
        default PCI

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"

menu "Kernel hacking"

source "lib/Kconfig.debug"

endmenu