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ArmPkg/ArmCpuLib: Added A57 Errata 806969 

This rare errata only affects r0p0

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15400 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Olivier Martin 2014-03-26 19:35:17 +00:00 committed by oliviermartin
parent 19dc108b65
commit 44372159a2
1 changed files with 8 additions and 0 deletions
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8
ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c
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@ -40,6 +40,14 @@ ArmCpuSetup (
ArmSetCpuExCrBit (A5X_FEATURE_SMP); ArmSetCpuExCrBit (A5X_FEATURE_SMP);
} }
//
// If CPU is CortexA57 r0p0 apply Errata: 806969
//
if ((ArmReadMidr () & ((ARM_CPU_TYPE_MASK << 4) | ARM_CPU_REV_MASK)) ==
((ARM_CPU_TYPE_A57 << 4) | ARM_CPU_REV(0,0))) {
// DisableLoadStoreWB
ArmSetCpuActlrBit (1ULL << 49);
}
} }
VOID VOID