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Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 39cd37f29aaf..ed275aa293e5 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1200,6 +1200,16 @@ config ARM_ERRATA_818325_852422 Feature Register. This bit disables an optimisation applied to a sequence of 2 instructions that use opposing condition codes. +config ARM_ERRATA_821420 + bool "ARM errata: A12: sequence of VMOV to core registers might lead to a dead lock" + depends on CPU_V7 + help + This option enables the workaround for the 821420 Cortex-A12 + (all revs) erratum. In very rare timing conditions, a sequence + of VMOV to Core registers instructions, for which the second + one is in the shadow of a branch or abort, can lead to a + deadlock when the VMOV instructions are issued out-of-order. + config ARM_ERRATA_852423 bool "ARM errata: A17: some seqs of opposed cond code instrs => deadlock or corruption" depends on CPU_V7 |