ARM: implement erratum 716044 workaround
Add common code to enable the workaround for ARM erratum 716044. This
will be enabled for Tegra.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S
index fa5fad1..c0e1849 100644
--- a/arch/arm/cpu/armv7/start.S
+++ b/arch/arm/cpu/armv7/start.S
@@ -310,6 +310,12 @@
#endif
mcr p15, 0, r0, c1, c0, 0
+#ifdef CONFIG_ARM_ERRATA_716044
+ mrc p15, 0, r0, c1, c0, 0 @ read system control register
+ orr r0, r0, #1 << 11 @ set bit #11
+ mcr p15, 0, r0, c1, c0, 0 @ write system control register
+#endif
+
#ifdef CONFIG_ARM_ERRATA_742230
mrc p15, 0, r0, c15, c0, 1 @ read diagnostic register
orr r0, r0, #1 << 4 @ set bit #4