Messages in this thread Patch in this message | | | From | Praneeth Bajjuri <> | Subject | [PATCH] ARM: DRA7: Enable Cortex A15 errata 798181 | Date | Wed, 25 Mar 2015 18:25:09 -0500 |
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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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