1echo "Root File Sytem on MMC${devnum}" 2setenv rootfs /dev/mmcblk${devnum}p1 3setenv bootargs root=${rootfs} rootwait rw ${extrabootargs} 4 5load ${devtype} ${devnum} ${kernel_addr_r} boot/Image 6load ${devtype} ${devnum} ${fdt_addr_r} boot/imx8mq-kontron-pitx-imx8m.dtb 7 8booti ${kernel_addr_r} - ${fdt_addr_r} 9