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[PATCH] ARM: Enable I$/D$/BrPredict based on config |
Currently we only disable these bits based on config. Now we will use this config option to explicitly enable these features at this point regardless of what bootloader, other SW, or HW did before. Signed-off-by: Bryan Buckley <bryan.buckley@xxxxxx> --- arch/arm/kernel/head.S | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 3bf0c7f..cec0de5 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -411,12 +411,18 @@ __enable_mmu: #endif #ifdef CONFIG_CPU_DCACHE_DISABLE bic r0, r0, #CR_C +#else + orr r0, r0, #CR_C #endif #ifdef CONFIG_CPU_BPREDICT_DISABLE bic r0, r0, #CR_Z +#else + orr r0, r0, #CR_Z #endif #ifdef CONFIG_CPU_ICACHE_DISABLE bic r0, r0, #CR_I +#else + orr r0, r0, #CR_I #endif #ifdef CONFIG_ARM_LPAE mov r5, #0 -- 1.7.4.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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