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      1 How 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 
     10 This will generate the SPL image called SPL and the u-boot.img.
     11 
     12 - Flash the SPL image into the SD card:
     13 
     14 sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
     15 
     16 - Flash the u-boot.img image into the SD card:
     17 
     18 sudo 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
     21 come up.
     22