exynos: secondary_startup endian fix
If kernel operates in BE mode on board that has LE bootloader/rom code, we need
to switch CPU to operate in BE mode as soon as possible. generic
secondary_startup that is called from exynos specific secondary startup code
will do the switch, but we need it to do earlier because exynos specific
secondary_startup code works with BE data.
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
diff --git a/arch/arm/mach-exynos/headsmp.S b/arch/arm/mach-exynos/headsmp.S
index b56bb9c..08d3d3f 100644
--- a/arch/arm/mach-exynos/headsmp.S
+++ b/arch/arm/mach-exynos/headsmp.S
@@ -112,6 +112,11 @@
mov pc, r0
ENTRY(exynos4_secondary_startup)
+ /*
+ * ROM code operates in little endian mode, when we get control we
+ * need to switch it to big endian mode.
+ */
+ARM_BE8(setend be)
mrc p15, 0, r0, c0, c0, 5
and r0, r0, #0xffffff
adr r4, 1f
