armv8: Implement workaround for Cortex-A53 erratum 855873
855873: An eviction might overtake a cache clean operation
Workaround: The erratum can be avoided by upgrading cache clean by
address operations to cache clean and invalidate operations. For
Cortex-A53 r0p3 and later release, this can be achieved by setting
CPUACTLR.ENDCCASCI to 1.
This patch is to implement the workaround for this erratum.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
index d5f0e55..cefbdfe 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
+++ b/arch/arm/cpu/armv8/fsl-layerscape/Kconfig
@@ -1,6 +1,7 @@
config ARCH_LS1012A
bool
select ARMV8_SET_SMPEN
+ select ARM_ERRATA_855873
select FSL_LSCH2
select SYS_FSL_DDR_BE
select SYS_FSL_MMDC
@@ -16,6 +17,7 @@
config ARCH_LS1043A
bool
select ARMV8_SET_SMPEN
+ select ARM_ERRATA_855873
select FSL_LSCH2
select SYS_FSL_DDR
select SYS_FSL_DDR_BE
@@ -68,6 +70,7 @@
config ARCH_LS1088A
bool
select ARMV8_SET_SMPEN
+ select ARM_ERRATA_855873
select FSL_LSCH3
select SYS_FSL_DDR
select SYS_FSL_DDR_LE