tree 15aae28b64d6ad4da8a80dc5b195bb8264ae3321
parent 5877191bcfa4ac6f4be0e1189a64318d240e6758
author Akshay Saraswat <akshay.s@samsung.com> 1424419038 +0530
committer Minkyu Kang <mk7.kang@samsung.com> 1425114226 +0900

Exynos542x: Fix secondary core booting for thumb

When compiled SPL for Thumb secondary cores failed to boot
at the kernel boot up. Only one core came up out of 4.
This was happening because the code relocated to the
address 0x02073000 by the primary core was an ARM asm
code which was executed by the secondary cores as if it
was a thumb code.
This patch fixes the issue of secondary cores considering
relocated code as Thumb instructions and not ARM instructions
by jumping to the relocated with the help of "bx" ARM instruction.
"bx" instruction changes the 5th bit of CPSR which allows
execution unit to consider the following instructions as ARM
instructions.

Signed-off-by: Akshay Saraswat <akshay.s@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>