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authorRussell King2015-04-03 00:58:55 +0200
committerRussell King2015-04-14 23:26:52 +0200
commite5a5de4447471ab1a01585f075400c2be36e2cb6 (patch)
treeb66671a44c142bed1cfbc0b7f0bd782ee61eb599 /arch/arm/Kconfig
parentARM: cache-v7: optimise test for Cortex A9 r0pX devices (diff)
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ARM: enable ARM errata 643719 workaround by default
The effects of not having ARM errata 643719 enabled on affected CPUs can be very confusing and hard to debug. Rather than leave this to chance, enable this workaround by default. Now that we have rearranged the code, it should have a low impact on the majority of CPUs. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
-rw-r--r--arch/arm/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 35fed4b1ebd8..bca01e280bbe 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1127,6 +1127,7 @@ config ARM_ERRATA_742231
config ARM_ERRATA_643719
bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
depends on CPU_V7 && SMP
+ default y
help
This option enables the workaround for the 643719 Cortex-A9 (prior to
r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR