CI20 U-Boot
Installation to an SD card:
Repartition your card with an MBR such that the first partition starts at an
offset of no less than 270KB. Then install U-Boot SPL & the full U-Boot image
to the card like so:
dd if=spl/u-boot-spl.bin of=/dev/sdX obs=512 seek=1
dd if=u-boot-dtb.img of=/dev/sdX obs=1K seek=14
sync