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Subject[PATCH] ARM: DRA7: Enable Cortex A15 errata 798181
Date
ARM errata 798181 is applicable for OMAP5/DRA7 based devices. So enable
the same in the build.

DRA7xx is based on Cortex-A15 r2p2 revision.

ARM Errata extract and workaround information is as below.

On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
adequately shooting down all use of the old entries. The
ARM_ERRATA_798181 option enables the Linux kernel workaround
for this erratum which sends an IPI to the CPUs that are running
the same ASID as the one being invalidated.

Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
---
arch/arm/mach-omap2/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index c7d8d86..3e4b4ae 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -69,6 +69,7 @@ config SOC_DRA7XX
select ARM_GIC
select HAVE_ARM_ARCH_TIMER
select IRQ_CROSSBAR
+ select ARM_ERRATA_798181 if SMP

config ARCH_OMAP2PLUS
bool
--
1.7.9.5


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