u-boot-brain/tools/binman/test/119_fdtmap_hdr_missing.dts

/dts-v1/;

/ {
	#address-cells = <1>;
	#size-cells = <1>;

	binman {
		sort-by-offset;
		u-boot {
		};
		image-header {
			offset = <0x80>;
			location = "start";
		};
	};
};