u-boot/doc/uImage.FIT/update_uboot.its

/*
 * Automatic software update for U-Boot
 * Make sure the flashing addresses ('load' prop) is correct for your board!
 */

/dts-v1/;

/ {
	description = "Automatic U-Boot update";
	#address-cells = <1>;

	images {
		update@1 {
			description = "U-Boot binary";
			data = /incbin/("./u-boot.bin");
			compression = "none";
			type = "firmware";
			load = <FFFC0000>;
			hash@1 {
				algo = "sha1";
			};
		};
	};
};