choice prompt "Target CPU" default BR2_arc770d depends on BR2_arc help Specific CPU to use config BR2_arc750d bool "ARC 750D" config BR2_arc770d bool "ARC 770D" config BR2_archs38 bool "ARC HS38" help Generic ARC HS capable of running Linux, i.e. with MMU, caches and 32-bit multiplier. Also it corresponds to the default configuration in older GNU toolchain versions. config BR2_archs38_64mpy bool "ARC HS38 with 64-bit mpy" help Fully featured ARC HS capable of running Linux, i.e. with MMU, caches and 64-bit multiplier. If you're not sure which version of ARC HS core you build for use this one. config BR2_archs38_full bool "ARC HS38 with Quad MAC & FPU" help Fully featured ARC HS with additional support for - Dual- and quad multiply and MC oprations - Double-precision FPU It corresponds to "hs38_slc_full" ARC HS template in ARChitect. config BR2_archs4x_rel31 bool "ARC HS48 rel 31" help Latest release of HS48 processor - Dual- and quad multiply and MC oprations - Double-precision FPU endchoice # Choice of atomic instructions presence config BR2_ARC_ATOMIC_EXT bool "Atomic extension (LLOCK/SCOND instructions)" default y if BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 config BR2_ARCH default "arc" if BR2_arcle default "arceb" if BR2_arceb config BR2_arc bool default y if BR2_arcle || BR2_arceb config BR2_ENDIAN default "LITTLE" if BR2_arcle default "BIG" if BR2_arceb config BR2_GCC_TARGET_CPU default "arc700" if BR2_arc750d default "arc700" if BR2_arc770d default "archs" if BR2_archs38 default "hs38" if BR2_archs38_64mpy default "hs38_linux" if BR2_archs38_full default "hs4x_rel31" if BR2_archs4x_rel31 config BR2_READELF_ARCH_NAME default "ARCompact" if BR2_arc750d || BR2_arc770d default "ARCv2" if BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 choice prompt "MMU Page Size" default BR2_ARC_PAGE_SIZE_8K help MMU starting from version 3 (found in ARC 770) and now version 4 (found in ARC HS38) allows the selection of the page size during ASIC design creation. The following options are available for MMU v3 and v4: 4kB, 8kB and 16 kB. The default is 8 kB (that really matches the only page size in MMU v2). It is important to build a toolchain with page size matching the hardware configuration. Otherwise user-space applications will fail at runtime. config BR2_ARC_PAGE_SIZE_4K bool "4KB" depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 config BR2_ARC_PAGE_SIZE_8K bool "8KB" help This is the one and only option available for MMUv2 and default value for MMU v3 and v4. config BR2_ARC_PAGE_SIZE_16K bool "16KB" depends on BR2_arc770d || BR2_archs38 || BR2_archs38_64mpy || BR2_archs38_full || BR2_archs4x_rel31 endchoice config BR2_ARC_PAGE_SIZE string default "4K" if BR2_ARC_PAGE_SIZE_4K default "8K" if BR2_ARC_PAGE_SIZE_8K default "16K" if BR2_ARC_PAGE_SIZE_16K # vim: ft=kconfig # -*- mode:kconfig; -*-