On Thu, Sep 10, 2020 at 05:22 AM, Fabio Estevam wrote:

Hi Otavio,

On Thu, Sep 10, 2020 at 9:09 AM Otavio Salvador
<otavio.salvador@...> wrote:

Could U-Boot load the correct dtb for the board revision?

Unfortunately, this cannot be determined in run-time.

When the sdcard is created, the u-boot environment has fdt_file defaulted to imx8mm-evk.dtb.  I've not yet figured out how to override the recipe to specify which .dtb file should be used.  For sdcard boot, all of the .dtb's are on the FAT partition of the sdcard so it's easy enough to change the filename to use.

I use SPI NOR so I just have the .dtb file burned into a specific address so the name doesn't matter in that case.

Regards,

Brian