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arm: v7: Kconfig: Add entry for MMU

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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>
This commit is contained in:
Lokesh Vutla 2018-04-26 18:21:27 +05:30 committed by Tom Rini
parent acf1500138
commit 7240b80ee0
1 changed files with 15 additions and 0 deletions
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15
arch/arm/Kconfig
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@ -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