[PATCH V2 2/2] ARM: imx: Pick correct eMMC boot partition from ROM log

[sbabic@denx.de]

> In case the iMX8M boot from eMMC boot partition and the primary image
> is corrupted, the BootROM is capable of starting a secondary image in
> the other eMMC boot partition as a fallback.
> However, the BootROM leaves the eMMC BOOT_PARTITION_ENABLE setting as
> it was, i.e. pointing to the boot partition containing the corrupted
> image, and the BootROM does not provide any indication that this sort
> of fallback occured.
> According to AN12853 i.MX ROMs Log Events, Rev. 0, May 2020, it is
> possible to determine whether fallback event occurred by parsing the
> ROM event log. In case ROM event ID 0x51 is present, fallback event
> did occur.
> This patch implements ROM event log parsing and search for event ID
> 0x51 for all iMX8M SoCs, and based on that corrects the eMMC boot
> partition selection. This way, the SPL loads the remaining boot
> components from the same eMMC boot partition from which it was
> started, even in case of the fallback.
> Signed-off-by: Marek Vasut <marex@denx.de>
> Cc: Faiz Abbas <faiz_abbas@ti.com>
> Cc: Harald Seiler <hws@denx.de>
> Cc: Lokesh Vutla <lokeshvutla@ti.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Fabio Estevam <festevam@gmail.com>
> Cc: Peng Fan <peng.fan@nxp.com>
> Cc: Stefano Babic <sbabic@denx.de>
> Cc: Ye Li <ye.li@nxp.com>
Applied to u-boot-imx, master, thanks !

Best regards,
Stefano Babic

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