Preparing U-Boot

Finally, prepare the i.MX6 Quad board for U-Boot:

  1. Connect to your i.MX6 Quad board with a serial connection at a baud rate of 115200.
  2. Set the following environment variables in the U-Boot terminal:
    setenv bootcmd_demo_dt 'mmc dev 1;
    fatload mmc 1:1 20000000 demo.image;
    fatload mmc 1:1 4FFE0000 imx6q-sabrelite.dtb;
    bootm 20000000 - 4FFE0000'
    setenv bootcmd 'run bootcmd_demo_dt'
    saveenv
    							

    注意: 文件 demo.image was built with the mkimage tool in Building U-Boot Image .

  3. Reset the i.MX6 Quad board.

Now your i.MX6 Quad board is ready to run your application.