As shown in the following figure, if you enable the u-boot dtb configuration, you can build separate U-Boot DTB with the
provided design and you can find the binary in <plnx-proj-root>/images/linux with the name u-boot.dtb. You can change the name with the uboot dtb package name option. If you have a dts file
to build a separate U-Boot DTB, you can use the uboot dts file path
to provide the dts/dtsi files with space separation.
Figure 1. Separate U-Boot DTB