Hello I have a board with SPI where U-Boot image is located along with environment settings. The image is supplied with correct FDT, so no additional dtb files are required to boot Linux from MMC. I.e. fdtcontrol variable is set up by U-Boot. Then EFI is used to execute Grub2 which handles the rest.
I've read https://docs.u-boot.org/en/latest/usage/fdt_overlays.html#manually-loading-and-applying-overlays but it describes mostly how to do the overlay loading manually. What I want to achieve is to automatically apply FDT overlay from a specific dtbo file located on MMC at each boot. What is the recommended way to do that? Will rewriting the bootcmd env with pretended commands work for me? With best regards, Matwey V. Kornilov
