diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2014-07-08 02:59:42 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-07-18 12:29:26 +0100 |
| commit | 80d3cb9132b2e4f9a1858ae4a84546a3ea2e7f46 (patch) | |
| tree | 7905939d61cbae596648612c332a65ed6652985b | |
| parent | 7ca791c59dda75715088d91788bf6989b5a1945a (diff) | |
ARM: 8090/1: add revision info for PL310 errata 588369 and 727915
Add revision info for PL310_ERRATA_588369 and PL310_ERRATA_727915 to
help people understand if they need to enable the errata for their
hardware.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mm/Kconfig | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index c348eaee7ee2..df46620206af 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -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. config PL310_ERRATA_727915 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption" @@ -918,7 +918,8 @@ 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). config PL310_ERRATA_753970 bool "PL310 errata: cache sync operation may be faulty" |