[PATCH 05/10] imx: imx8qm/qxp: Recover SPL data section for partition reboot

sbabic at denx.de
2020-05-11T10:17:42Z

> When doing partition reboot, the boot image won't be reloaded by ROM,
> it is just CPU reset to boot entry. The SW has to keep the boot image
> inside the RAM unchanged. It includes both the TEXT section and DATA
> section.
> For SPL, the problem is DATA section will be updated at runtime, so in
> next partition reboot the data is not same as the initial value from
> cold boot. If any code depends on the initial value, then it will have
> problem.
> This patch introduces a mechanism to recover the data section
> for partition reboot. It adds a new section in image for saving
> data section. When from cold boot, the data section will be saved
> to that new section at SPL early phase. When from partition reboot,
> the data section will be restored from the new section.
> Signed-off-by: Ye Li <ye.li@nxp.com>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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