| choice |
| prompt "Target CPU" |
| depends on BR2_arc |
| default BR2_arc770d |
| help |
| Specific CPU to use |
| |
| config BR2_arc750d |
| bool "ARC 750D" |
| |
| config BR2_arc770d |
| bool "ARC 770D" |
| |
| config BR2_archs38 |
| bool "ARC HS38" |
| |
| endchoice |
| |
| # Choice of atomic instructions presence |
| config BR2_ARC_ATOMIC_EXT |
| bool "Atomic extension (LLOCK/SCOND instructions)" |
| default y if BR2_arc770d || BR2_archs38 |
| |
| config BR2_ARCH_HAS_ATOMICS |
| default y if BR2_ARC_ATOMIC_EXT |
| |
| 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 |
| |
| 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 |
| |
| 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 |
| |
| 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 |
