1How to use U-Boot on MX6Q/DL Udoo boards 2---------------------------------------- 3 4- Build U-Boot for MX6Q/DL Udoo boards: 5 6$ make mrproper 7$ make udoo_defconfig 8$ make 9 10This will generate the SPL image called SPL and the u-boot.img. 11 12- Flash the SPL image into the SD card: 13 14sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync 15 16- Flash the u-boot.img image into the SD card: 17 18sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync 19 20- Insert the SD card in the board, power it up and U-Boot messages should 21come up. 22