[PATCH] kontron-sl-mx8mm: Let CONFIG_SPL_FIT_IMAGE_TINY be selected

[Frieder Schrempf]

Hi Fabio,

Am 24.08.22 um 03:09 schrieb Fabio Estevam:
> When CONFIG_IMX_HAB is selected the 'hab_status' command reports several
> error events, indicating that the BootROM failed to authenticate the SPL.
> 
> After inspecting the content of the memory location that corresponds to
> the DTB load address, the content did not match with the DTB binary,
> showing that some kind of memory corruption/overlap occurred.
> 
> Letting the CONFIG_SPL_FIT_IMAGE_TINY option to be selected causes the
> DTB to be properly placed into RAM and no more overlap occurs.
> 
> With this change, the 'hab_status' command returns no more error events,
> which indicates that the BootROM succeeded to authenticate the SPL.
> 
> Signed-off-by: Fabio Estevam <festevam at denx.de>

Thanks for debugging!

I remember that enabling CONFIG_SPL_FIT_IMAGE_TINY resulted in aliases
from the devicetree not being available anymore. This in turn caused the
indexing of some devices to not be consistent between SPL, U-Boot proper
and kernel. But I don't remember which exact problems were caused by this.

I tried this on top of my patchset [1] and at first glance I don't see
any obvious problems, so I hope whatever I have in the back of my mind
is not an issue anymore.

Reviewed-by: Frieder Schrempf <frieder.schrempf at kontron.de>

[1]
https://patchwork.ozlabs.org/project/uboot/cover/20220801103027.96820-1-frieder@fris.de/

Thanks
Frieder