Hi Matwey, On Wed, 7 Jan 2026 at 06:00, Matwey V. Kornilov <[email protected]> wrote: > > 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?
We should really be using FIT for this. It is designed for this purpose and is a better solution than individual files. Regards, Simon
