u-boot/tools/binman/test/266_blob_ext_opt.dts

// SPDX-License-Identifier: GPL-2.0+

/dts-v1/;

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

	binman {
		ok {
			type = "blob-ext";
			filename = "refcode.bin";
		};

		missing {
			type = "blob-ext";
			filename = "missing.bin";
			optional;
		};
	};
};