tree b38198007fb0e0055f09975e341f814bc030e9c8
parent ca9c6f091095d3bf09cac42c3eb4493490ac8912
author Peng Fan <peng.fan@nxp.com> 1544596136 +0800
committer Ye Li <ye.li@nxp.com> 1558697350 -0700

MLK-20542 imx8qm: xen: mek: add magic number

Write magic number in board early init, and clear magic when booting
Linux.

This is to let XEN know the current EL1 code is U-Boot or Linux
when reset/reboot. This is just a workaround because CM41 could not
communicate with XEN now, even XEN knows that EL1 is reseting/rebooting.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Flynn xu <flynn.xu@nxp.com>
(cherry picked from commit 8132f6b5848d45cab795bb472d6484130985415d)