How to configure the Linux kernel/arch/v850

Howto configure the Linux kernel / arch / v850

For a description of the syntax of this configuration file,

see Documentation/kbuild/kconfig-language.txt.

"uClinux/v850 (w/o MMU) Kernel Configuration"

Option: MMU
- Kernel Versions: 2.6.15.6 ... bool
- default n

Option: UID16
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

Option: RWSEM_GENERIC_SPINLOCK
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

Option: RWSEM_XCHGADD_ALGORITHM
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

Option: GENERIC_CALIBRATE_DELAY
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

Option: GENERIC_HARDIRQS
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

Option: GENERIC_IRQ_PROBE
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

Turn off some random 386 crap that can affect device config

Option: ISA
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

Option: ISAPNP
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

Option: EISA
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

Option: MCA
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default n

1. 2. v850-specific config

Define the architecture

Option: V850
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

Processor type and features[]

- choice prompt "Platform" default GDB config V850E_SIM bool GDB config RTE_CB_MA1 bool RTE-V850E/MA1-CB config RTE_CB_NB85E bool RTE-V850E/NB85E-CB config RTE_CB_ME2 bool RTE-V850E/ME2-CB config V850E_AS85EP1 bool AS85EP1 config V850E2_SIM85E2C bool sim85e2c config V850E2_SIM85E2S bool sim85e2s config V850E2_FPGA85E2C bool NA85E2C-FPGA config V850E2_ANNA bool Anna endchoice
  
  #### V850E processor-specific config
  
  # All CPUs currently supported use the v850e architecture config V850E bool default y
  
  # The RTE-V850E/MA1-CB is the only type of V850E/MA1 platform we # currently support config V850E_MA1 bool depends RTE_CB_MA1 default y # Similarly for the RTE-V850E/NB85E-CB - V850E/TEG config V850E_TEG bool depends RTE_CB_NB85E default y # ... and the RTE-V850E/ME2-CB - V850E/ME2 config V850E_ME2 bool depends RTE_CB_ME2 default y

- #### sim85e2-specific config
  
  config V850E2_SIM85E2 bool depends V850E2_SIM85E2C || V850E2_SIM85E2S default y

- #### V850E2 processor-specific config
  
  # V850E2 processors config V850E2 bool depends V850E2_SIM85E2 || V850E2_FPGA85E2C || V850E2_ANNA default y

- #### RTE-CB platform-specific config
  
  # Boards in the RTE-x-CB series config RTE_CB bool depends RTE_CB_MA1 || RTE_CB_NB85E || RTE_CB_ME2 default y
  
  config RTE_CB_MULTI bool # RTE_CB_NB85E can either have multi ROM support or not, but # other platforms (currently only RTE_CB_MA1) require it. prompt "Multi monitor ROM support" if RTE_CB_NB85E depends RTE_CB_MA1 || RTE_CB_NB85E default y
  
  config RTE_CB_MULTI_DBTRAP bool Pass illegal insn trap / dbtrap to kernel depends RTE_CB_MULTI default n
  
  config RTE_CB_MA1_KSRAM bool Kernel in SRAM (limits size of kernel) depends RTE_CB_MA1 && RTE_CB_MULTI default n
  
  config RTE_MB_A_PCI bool Mother-A PCI support depends RTE_CB default y
  
  # The GBUS is used to talk to the RTE-MOTHER-A board config RTE_GBUS_INT bool depends RTE_MB_A_PCI default y
  
  # The only PCI bus we support is on the RTE-MOTHER-A board config PCI bool default RTE_MB_A_PCI
  
  #### Some feature-specific configs
  
  # Everything except for the GDB simulator uses the same interrupt controller config V850E_INTC bool default !V850E_SIM
  
  # Everything except for the various simulators uses the "Timer D" unit config V850E_TIMER_D bool default !V850E_SIM && !V850E2_SIM85E2
  
  # Cache control used on some v850e1 processors config V850E_CACHE bool default V850E_TEG || V850E_ME2
  
  # Cache control used on v850e2 processors; I think this should # actually apply to more, but currently only the SIM85E2S uses it config V850E2_CACHE bool default V850E2_SIM85E2S
  
  config NO_CACHE bool default !V850E_CACHE && !V850E2_CACHE
  
  #### Misc config
  
  config ROM_KERNEL bool Kernel in ROM depends V850E2_ANNA || V850E_AS85EP1 || RTE_CB_ME2
  
  # Some platforms pre-zero memory, in which case the kernel doesn't need to config ZERO_BSS bool depends !V850E2_SIM85E2C default y
  
  # The crappy-ass zone allocator requires that the start of allocatable # memory be aligned to the largest possible allocation. config FORCE_MAX_ZONEORDER int default 8 if V850E2_SIM85E2C || V850E2_FPGA85E2C
  
  config V850E_HIGHRES_TIMER bool High resolution timer support depends V850E_TIMER_D config TIME_BOOTUP bool Time bootup depends V850E_HIGHRES_TIMER
  
  config RESET_GUARD bool Reset Guard
  
  config LARGE_ALLOCS bool Allow allocating large blocks (> 1MB) of memory help Allow the slab memory allocator to keep chains for very large memory sizes - up to 32MB. You may need this if your system has a lot of RAM, and you need to able to allocate very large contiguous chunks. If unsure, say N.