| How to use U-Boot on variscite DART-6UL Evaluation Kit |
| ------------------------------------------------------ |
| |
| - Configure and build U-Boot for DART-6UL iMX6ULL: |
| |
| $ make mrproper |
| $ make variscite_dart6ul_defconfig |
| $ make |
| |
| This will generate SPL and u-boot-dtb.img images. |
| |
| Boot from MMC/SD: |
| - The SPL and u-boot-dtb.img images need to be flashed into the micro SD card: |
| |
| $ sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync |
| $ sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69; sync |
| |
| - Boot mode settings: |
| |
| Boot switch position: SW1 -> 0 |
| SW2 -> 0 |
| |
| Boot from eMMC: |
| - if bootpart is not enabled by default, to enable under Linux |
| echo 0 >/sys/block/mmcblk1boot0/force_ro |
| mmc bootpart enable 1 1 /dev/mmcblk1boot0 |
| |
| - Flash the SPL and u-boot-dtb.img to mmcblk1boot0 |
| $ sudo dd if=SPL of=/dev/mmcblk1boot0 bs=1k seek=1; sync |
| $ sudo dd if=u-boot-dtb.img of=/dev/mmcblk1boot0 bs=1k seek=69; sync |
| |
| - Boot mode settings: |
| |
| Boot switch position: SW1 -> 0 |
| SW2 -> 1 |
| |
| - Connect the Serial cable to UART0 and the PC for the console. |
| |
| - Insert the micro SD card in the board and power it up. |
| |
| - U-Boot messages should come up. |
