setenv bootargs systemd.unit=usb-flash.service
fatload usb 0:1 ${kernel_addr_r} zImage
fatload usb 0:1 ${fdt_addr_r} czechlight-clearfog.dtb
fatload usb 0:1 ${ramdisk_addr_r} rootfs.cpio.uboot
bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}