| # |
| # For a description of the syntax of this configuration file, |
| # see Documentation/kbuild/kconfig-language.txt. |
| # |
| config FRV |
| bool |
| default y |
| |
| config ZONE_DMA |
| bool |
| default y |
| |
| config RWSEM_GENERIC_SPINLOCK |
| bool |
| default y |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| bool |
| |
| config GENERIC_FIND_NEXT_BIT |
| bool |
| default y |
| |
| config GENERIC_HWEIGHT |
| bool |
| default y |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool |
| default n |
| |
| config GENERIC_HARDIRQS |
| bool |
| default y |
| |
| config GENERIC_HARDIRQS_NO__DO_IRQ |
| bool |
| default y |
| |
| config GENERIC_TIME |
| bool |
| default y |
| |
| config TIME_LOW_RES |
| bool |
| default y |
| |
| config QUICKLIST |
| bool |
| default y |
| |
| config ARCH_HAS_ILOG2_U32 |
| bool |
| default y |
| |
| config ARCH_HAS_ILOG2_U64 |
| bool |
| default y |
| |
| mainmenu "Fujitsu FR-V Kernel Configuration" |
| |
| source "init/Kconfig" |
| |
| |
| menu "Fujitsu FR-V system setup" |
| |
| config MMU |
| bool "MMU support" |
| help |
| This options switches on and off support for the FR-V MMU |
| (effectively switching between vmlinux and uClinux). Not all FR-V |
| CPUs support this. Currently only the FR451 has a sufficiently |
| featured MMU. |
| |
| config FRV_OUTOFLINE_ATOMIC_OPS |
| bool "Out-of-line the FRV atomic operations" |
| default n |
| help |
| Setting this option causes the FR-V atomic operations to be mostly |
| implemented out-of-line. |
| |
| See Documentation/frv/atomic-ops.txt for more information. |
| |
| config HIGHMEM |
| bool "High memory support" |
| depends on MMU |
| default y |
| help |
| If you wish to use more than 256MB of memory with your MMU based |
| system, you will need to select this option. The kernel can only see |
| the memory between 0xC0000000 and 0xD0000000 directly... everything |
| else must be kmapped. |
| |
| The arch is, however, capable of supporting up to 3GB of SDRAM. |
| |
| config HIGHPTE |
| bool "Allocate page tables in highmem" |
| depends on HIGHMEM |
| default y |
| help |
| The VM uses one page of memory for each page table. For systems |
| with a lot of RAM, this can be wasteful of precious low memory. |
| Setting this option will put user-space page tables in high memory. |
| |
| source "mm/Kconfig" |
| |
| choice |
| prompt "uClinux kernel load address" |
| depends on !MMU |
| default UCPAGE_OFFSET_C0000000 |
| help |
| This option sets the base address for the uClinux kernel. The kernel |
| will rearrange the SDRAM layout to start at this address, and move |
| itself to start there. It must be greater than 0, and it must be |
| sufficiently less than 0xE0000000 that the SDRAM does not intersect |
| the I/O region. |
| |
| The base address must also be aligned such that the SDRAM controller |
| can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned. |
| |
| config UCPAGE_OFFSET_20000000 |
| bool "0x20000000" |
| |
| config UCPAGE_OFFSET_40000000 |
| bool "0x40000000" |
| |
| config UCPAGE_OFFSET_60000000 |
| bool "0x60000000" |
| |
| config UCPAGE_OFFSET_80000000 |
| bool "0x80000000" |
| |
| config UCPAGE_OFFSET_A0000000 |
| bool "0xA0000000" |
| |
| config UCPAGE_OFFSET_C0000000 |
| bool "0xC0000000 (Recommended)" |
| |
| endchoice |
| |
| config PROTECT_KERNEL |
| bool "Protect core kernel against userspace" |
| depends on !MMU |
| default y |
| help |
| Selecting this option causes the uClinux kernel to change the |
| permittivity of DAMPR register covering the core kernel image to |
| prevent userspace accessing the underlying memory directly. |
| |
| choice |
| prompt "CPU Caching mode" |
| default FRV_DEFL_CACHE_WBACK |
| help |
| This option determines the default caching mode for the kernel. |
| |
| Write-Back caching mode involves the all reads and writes causing |
| the affected cacheline to be read into the cache first before being |
| operated upon. Memory is not then updated by a write until the cache |
| is filled and a cacheline needs to be displaced from the cache to |
| make room. Only at that point is it written back. |
| |
| Write-Behind caching is similar to Write-Back caching, except that a |
| write won't fetch a cacheline into the cache if there isn't already |
| one there; it will write directly to memory instead. |
| |
| Write-Through caching only fetches cachelines from memory on a |
| read. Writes always get written directly to memory. If the affected |
| cacheline is also in cache, it will be updated too. |
| |
| The final option is to turn of caching entirely. |
| |
| Note that not all CPUs support Write-Behind caching. If the CPU on |
| which the kernel is running doesn't, it'll fall back to Write-Back |
| caching. |
| |
| config FRV_DEFL_CACHE_WBACK |
| bool "Write-Back" |
| |
| config FRV_DEFL_CACHE_WBEHIND |
| bool "Write-Behind" |
| |
| config FRV_DEFL_CACHE_WTHRU |
| bool "Write-Through" |
| |
| config FRV_DEFL_CACHE_DISABLED |
| bool "Disabled" |
| |
| endchoice |
| |
| menu "CPU core support" |
| |
| config CPU_FR401 |
| bool "Include FR401 core support" |
| depends on !MMU |
| default y |
| help |
| This enables support for the FR401, FR401A and FR403 CPUs |
| |
| config CPU_FR405 |
| bool "Include FR405 core support" |
| depends on !MMU |
| default y |
| help |
| This enables support for the FR405 CPU |
| |
| config CPU_FR451 |
| bool "Include FR451 core support" |
| default y |
| help |
| This enables support for the FR451 CPU |
| |
| config CPU_FR451_COMPILE |
| bool "Specifically compile for FR451 core" |
| depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551 |
| default y |
| help |
| This causes appropriate flags to be passed to the compiler to |
| optimise for the FR451 CPU |
| |
| config CPU_FR551 |
| bool "Include FR551 core support" |
| depends on !MMU |
| default y |
| help |
| This enables support for the FR555 CPU |
| |
| config CPU_FR551_COMPILE |
| bool "Specifically compile for FR551 core" |
| depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451 |
| default y |
| help |
| This causes appropriate flags to be passed to the compiler to |
| optimise for the FR555 CPU |
| |
| config FRV_L1_CACHE_SHIFT |
| int |
| default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451 |
| default "6" if CPU_FR551 |
| |
| endmenu |
| |
| choice |
| prompt "System support" |
| default MB93091_VDK |
| |
| config MB93091_VDK |
| bool "MB93091 CPU board with or without motherboard" |
| |
| config MB93093_PDK |
| bool "MB93093 PDK unit" |
| |
| endchoice |
| |
| if MB93091_VDK |
| choice |
| prompt "Motherboard support" |
| default MB93090_MB00 |
| |
| config MB93090_MB00 |
| bool "Use the MB93090-MB00 motherboard" |
| help |
| Select this option if the MB93091 CPU board is going to be used with |
| a MB93090-MB00 VDK motherboard |
| |
| config MB93091_NO_MB |
| bool "Use standalone" |
| help |
| Select this option if the MB93091 CPU board is going to be used |
| without a motherboard |
| |
| endchoice |
| endif |
| |
| config FUJITSU_MB93493 |
| bool "MB93493 Multimedia chip" |
| help |
| Select this option if the MB93493 multimedia chip is going to be |
| used. |
| |
| choice |
| prompt "GP-Relative data support" |
| default GPREL_DATA_8 |
| help |
| This option controls what data, if any, should be placed in the GP |
| relative data sections. Using this means that the compiler can |
| generate accesses to the data using GR16-relative addressing which |
| is faster than absolute instructions and saves space (2 instructions |
| per access). |
| |
| However, the GPREL region is limited in size because the immediate |
| value used in the load and store instructions is limited to a 12-bit |
| signed number. |
| |
| So if the linker starts complaining that accesses to GPREL data are |
| out of range, try changing this option from the default. |
| |
| Note that modules will always be compiled with this feature disabled |
| as the module data will not be in range of the GP base address. |
| |
| config GPREL_DATA_8 |
| bool "Put data objects of up to 8 bytes into GP-REL" |
| |
| config GPREL_DATA_4 |
| bool "Put data objects of up to 4 bytes into GP-REL" |
| |
| config GPREL_DATA_NONE |
| bool "Don't use GP-REL" |
| |
| endchoice |
| |
| config FRV_ONCPU_SERIAL |
| bool "Use on-CPU serial ports" |
| select SERIAL_8250 |
| default y |
| |
| config PCI |
| bool "Use PCI" |
| depends on MB93090_MB00 |
| default y |
| help |
| Some FR-V systems (such as the MB93090-MB00 VDK) have PCI |
| onboard. If you have one of these boards and you wish to use the PCI |
| facilities, say Y here. |
| |
| config RESERVE_DMA_COHERENT |
| bool "Reserve DMA coherent memory" |
| depends on PCI && !MMU |
| default y |
| help |
| Many PCI drivers require access to uncached memory for DMA device |
| communications (such as is done with some Ethernet buffer rings). If |
| a fully featured MMU is available, this can be done through page |
| table settings, but if not, a region has to be set aside and marked |
| with a special DAMPR register. |
| |
| Setting this option causes uClinux to set aside a portion of the |
| available memory for use in this manner. The memory will then be |
| unavailable for normal kernel use. |
| |
| source "drivers/pci/Kconfig" |
| |
| source "drivers/pcmcia/Kconfig" |
| |
| #config MATH_EMULATION |
| # bool "Math emulation support (EXPERIMENTAL)" |
| # depends on EXPERIMENTAL |
| # help |
| # At some point in the future, this will cause floating-point math |
| # instructions to be emulated by the kernel on machines that lack a |
| # floating-point math coprocessor. Thrill-seekers and chronically |
| # sleep-deprived psychotic hacker types can say Y now, everyone else |
| # should probably wait a while. |
| |
| menu "Power management options" |
| |
| config ARCH_SUSPEND_POSSIBLE |
| def_bool y |
| depends on !SMP |
| |
| source kernel/power/Kconfig |
| endmenu |
| |
| endmenu |
| |
| |
| menu "Executable formats" |
| |
| source "fs/Kconfig.binfmt" |
| |
| endmenu |
| |
| source "net/Kconfig" |
| |
| source "drivers/Kconfig" |
| |
| source "fs/Kconfig" |
| |
| source "arch/frv/Kconfig.debug" |
| |
| source "security/Kconfig" |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |
