05. How To Flash U Boot to eMMC

CompuLab U-Boot Tool

All images created with meta-compulab layer come with a built-in U-Boot tool that allows to flash the U-Boot image onto an available boot device.
Available boot devices for CL-SOM-iMX8 are: SD card, eMMC.

Follow the step-by-step procedure below:

Login as root

NXP i.MX Release Distro 4.9.51-mx8-beta cl-som-imx8 ttymxc2

cl-som-imx8 login: root

Type cl-uboot

root@cl-som-imx8:~# cl-uboot

Follow the dialog or select instructions:

⚠️ It is up to the user to decide what U-Boot to deploy: with or w/out HDMI support.:warning:
This example shows how to deploy U-Boot with HDMI support onto eMMC storage.

1) /boot/imx-boot-cl-som-imx8-sd.bin-flash_hdmi_spl_uboot
2) /boot/imx-boot-cl-som-imx8-sd.bin-flash_spl_uboot
3) exit
Select a u-boot file : 1
1) /dev/mmcblk0
2) /dev/mmcblk1
3) exit
Select a boot device : 1
         #####  #     #  #####   #####  #######  #####   #####
        #     # #     # #     # #     # #       #     # #     #
        #       #     # #       #       #       #       #
         #####  #     # #       #       #####    #####   #####
              # #     # #       #       #             #       #
        #     # #     # #     # #     # #       #     # #     #
         #####   #####   #####   #####  #######  #####   #####
root@cl-som-imx8:~#