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Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 84e4816362b..49f85664083 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -765,6 +765,19 @@ config ARM_ERRATA_430973 Note that setting specific bits in the ACTLR register may not be available in non-secure mode. +config ARM_ERRATA_458693 + bool "ARM errata: Processor deadlock when a false hazard is created" + depends on CPU_V7 + help + This option enables the workaround for the 458693 Cortex-A8 (r2p0) + erratum. For very specific sequences of memory operations, it is + possible for a hazard condition intended for a cache line to instead + be incorrectly associated with a different cache line. This false + hazard might then cause a processor deadlock. The workaround enables + the L1 caching of the NEON accesses and disables the PLD instruction + in the ACTLR register. Note that setting specific bits in the ACTLR + register may not be available in non-secure mode. + endmenu source "arch/arm/common/Kconfig" |