hello Yuri ,
I am not able to compile dtb from dts.
the link below mention it
DTS File not build in I.MX6ULL Evk Board
In yocto, you could use bitbake linux-imx -c
compile -f.
if give no error but there if no effect found when we copy imx6ul-14x14-evk.dtb to my memory card.
