pine64/rock64/genimage.cfg

image sdcard.img {
	hdimage {
	}

	partition uboot-spl {
		in-partition-table = "no"
		image = "u-boot-tpl-spl.img"
		offset = 32K # 512 * 0x40 from start of sd card
	}

	partition uboot {
		in-partition-table = "no"
		image = "u-boot.itb"
		offset = 256K # 512 * 0x200 from start of sd card
	}

	partition rootfs {
		partition-type = 0x83
		bootable = "yes"
		image = "rootfs.ext2"
		size = 500M
	}
}