diff options
| author | Lokesh Vutla | 2018-04-26 18:21:27 +0530 |
|---|---|---|
| committer | Tom Rini | 2018-05-07 15:53:28 -0400 |
| commit | 7240b80ee03ef712070d985cc9ed7b6c54e5764f (patch) | |
| tree | d1c0b7451c02dcbe131b4ebdbf80401dd061b72f /arch | |
| parent | acf1500138bb6b0496fe09d6bffdf8eac3d6ecab (diff) | |
arm: v7: Kconfig: Add entry for MMU
Add a Kconfig entry for MMU and imply for all platforms using
cache-cp15.c containing MMU setup. Using imply instead of select so that
MMU can be disabled by defconfigs when not needed.
Tested-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 576b8f5874c..5ff6809e94c 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -74,6 +74,12 @@ config ARM_ASM_UNIFIED config THUMB2_KERNEL bool +config SYS_ARM_MMU + bool "MMU-based Paged Memory Management Support" + help + Select if you want MMU-based virtualised addressing space + support by paged memory management. + # If set, the workarounds for these ARM errata are applied early during U-Boot # startup. Note that in general these options force the workarounds to be # applied; no CPU-type/version detection exists, unlike the similar options in @@ -158,33 +164,40 @@ config ARM_ERRATA_855873 config CPU_ARM720T bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_ARM920T bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_ARM926EJS bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_ARM946ES bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_ARM1136 bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_ARM1176 bool select HAS_VBAR select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_V7A bool select HAS_VBAR select HAS_THUMB2 select SYS_CACHE_SHIFT_6 + imply SYS_ARM_MMU config CPU_V7M bool @@ -195,10 +208,12 @@ config CPU_V7M config CPU_PXA bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config CPU_SA1100 bool select SYS_CACHE_SHIFT_5 + imply SYS_ARM_MMU config SYS_CPU default "arm720t" if CPU_ARM720T |