diff options
Diffstat (limited to 'ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c')
| -rw-r--r-- | ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c b/ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c index 7cae9f17f..99ee51fb6 100644 --- a/ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c +++ b/ArmPkg/Drivers/ArmCpuLib/ArmCortexA5xLib/ArmCortexA5xLib.c @@ -40,6 +40,14 @@ ArmCpuSetup ( 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
|