kumquat-buildroot/board/sifive/hifive-unleashed/genimage_spi-nor.cfg

image spi-nor.img {
	size = 32M

	hdimage {
		partition-table-type = "gpt"
	}

	partition u-boot-spl {
		image = "u-boot-spl.bin"
		offset = 20K
		partition-type-uuid = 5b193300-fc78-40cd-8002-e86c45580b47
	}

	partition u-boot {
		image = "u-boot.itb"
		offset = 1044K
		partition-type-uuid = 2e54b353-1271-4842-806f-e436d6af6985
	}
}