How to use U-Boot on PHYTEC phyBOARD-i.MX6UL-Segin -------------------------------------------------- - Configure and build U-Boot for phyCORE-i.MX6UL: $ make mrproper $ make phycore_pcl063_defconfig $ make This will generate SPL and u-boot-dtb.img images. - 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 - Jumper settings: JP1: Open: Boot from NAND Closed: Boot from SD/MMC1 - 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.