MMC=/dev/mmcblk0

dd if=boot0_sdcard_sun20iw1p1.bin of=$MMC bs=8192 seek=1  # Primary location, incompatible with GPT
dd if=boot0_sdcard_sun20iw1p1.bin of=$MMC bs=8192 seek=16 # Backup location
dd if=u-boot.toc1 of=$MMC bs=512 seek=32800
dd if=u-boot.toc1 of=$MMC bs=512 seek=24576