tree 2c65fb7ab999e39eb6acc0be8890eced30c950a1
parent 95e74a3df75bf01eaf69f5c28f9aa2db6568e901
author Alison Wang <b18965@freescale.com> 1478746143 +0800
committer York Sun <york.sun@nxp.com> 1479843624 -0800

armv8: Support loading 32-bit OS in AArch32 execution state

To support loading a 32-bit OS, the execution state will change from
AArch64 to AArch32 when jumping to kernel.

The architecture information will be got through checking FIT image,
then U-Boot will load 32-bit OS or 64-bit OS automatically.

Signed-off-by: Ebony Zhu <ebony.zhu@nxp.com>
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Signed-off-by: Chenhui Zhao <chenhui.zhao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>