[meta-xilinx] rel-v2018.1 / zcu102-zynqmp: U-boot crashes with error "fdt_root: FDT_ERR_BADMAGIC"

[Martin Lund]

Building and running core-image-minimal for the zcu102-zynqmp machine on the recently released rel-v2018.1 branch results in u-boot crashing with the following error:

fdt_root: FDT_ERR_BADMAGIC


Boot files are installed on the SD card following the normal guildelines - first partition (BOOT, vfat) is populated with the following files:

atf-uboot.ub
boot.bin
Image
Image-zynqmp-zcu102-rev1.0.dtb
u-boot.bin
uEnv.txt

We've seen the same error on two rel-2018.1 builds from two different build hosts.

Any ideas what might cause the .dtb / fdt to become broken like that?

Perhaps a broken dtc toolchain?