[PATCH] ARM: add revision info for PL310 errata 588369 and 727915
shawn.guo at freescale.com
Wed Jul 2 00:23:36 PDT 2014
Add revision info for PL310_ERRATA_588369 and PL310_ERRATA_727915 to
help people understand if they need to enable the errata for their
Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
arch/arm/mm/Kconfig | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index eda0dd0ab97b..9fb8a02b7e35 100644
@@ -907,8 +907,8 @@ config PL310_ERRATA_588369
They are architecturally defined to behave as the execution of a
clean operation followed immediately by an invalidate operation,
both performing to the same memory location. This functionality
- is not correctly implemented in PL310 as clean lines are not
- invalidated as a result of these operations.
+ is not correctly implemented in PL310 prior to r2p0 (fixed in r2p0)
+ as clean lines are not invalidated as a result of these operations.
bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
@@ -919,7 +919,8 @@ config PL310_ERRATA_727915
PL310 can handle normal accesses while it is in progress. Under very
rare circumstances, due to this erratum, write data can be lost when
PL310 treats a cacheable write transaction during a Clean &
- Invalidate by Way operation.
+ Invalidate by Way operation. Revisions prior to r3p1 are affected by
+ this errata (fixed in r3p1).
bool "PL310 errata: cache sync operation may be faulty"
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