Via USB:

Identify device:
$ 0xFFFF -I

Load kernel & initfs and boot it with cmdline:
$ 0xFFFF -m initfs:<file> -m kernel:<file> -l -b "<cmdline>"

Flash kernel and reboot:
$ 0xFFFF -m kernel:<file> -f -r

Flash FIASCO image and reboot:
$ 0xFFFF -M <file> -f -r

Flash only kernel from FIASCO image and reboot:
$ 0xFFFF -M <file> -t kernel -f -r

Cold-Flash 2nd and secondery bootloaders:
$ 0xFFFF -m 2nd:<file> -m secondary:<file> -c


On device (need nanddump from mtd-utils):

Dump all images to current directory:
$ 0xFFFF -e

Dump all images to one FIASCO file:
$ 0xFFFF -E <file>


FIASCO packaging:

Show FIASCO image content:
$ 0xFFFF -M <file> -i

Unpack FIASCO image to current directory:
$ 0xFFFF -M <file> -u

Generate new FIASCO image image.fiasco from files xloader.bin, nolo.bin, zImage, rootfs and append device&version information (xloader for RX-51 hw revision: 2101 and 2102, version 1.0)
$ 0xFFFF -m RX-51:2101,2102:1.0:xloader:xloader.bin -m RX-51:2101,2102:1.0:secondary:nolo.bin -m 2.6.28:kernel:zImage -m rootfs -g image.fiasco