1*4882a593SmuzhiyunHow to use U-Boot on MX6Q/DL Udoo boards 2*4882a593Smuzhiyun---------------------------------------- 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun- Build U-Boot for MX6Q/DL Udoo boards: 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun$ make mrproper 7*4882a593Smuzhiyun$ make udoo_defconfig 8*4882a593Smuzhiyun$ make 9*4882a593Smuzhiyun 10*4882a593SmuzhiyunThis will generate the SPL image called SPL and the u-boot.img. 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun- Flash the SPL image into the SD card: 13*4882a593Smuzhiyun 14*4882a593Smuzhiyunsudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun- Flash the u-boot.img image into the SD card: 17*4882a593Smuzhiyun 18*4882a593Smuzhiyunsudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun- Insert the SD card in the board, power it up and U-Boot messages should 21*4882a593Smuzhiyuncome up. 22