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