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.si...@xilinx.com>
Reviewed-by: Tom Rini <tr...@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com>
---
arch/arm/Kconfig | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index df475626e7..8854227d9a 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
--
2.17.0
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