change u-boot default dtb

[Ahelion]

Hello experts,

I have the imx8qm mek, running linux 6.1.36. How do I change the default u-boot dtb file without stoping the boot sequence and executing the set fdt_file thing?

I have yocto in front of me, but looking into similar questions I do not have the defines, includes as other boards have.

Br, 

[Zhiming_Liu]

Hi @Ahelion 

Using bitbake -c menuconfig u-boot-imx to open menuconfig and modify below config about device tree.