PKGBUILDs/alarm/uboot-usbarmory/boot.txt

# After modifying, run ./mkscr

# Uncomment to set the USB OTG port to host mode (default is peripheral)
#setenv otg_host yes

part uuid ${devtype} ${devnum}:${bootpart} uuid
setenv bootargs console=ttyGS0,115200 console=${console} root=PARTUUID=${uuid} rw rootwait

if load ${devtype} ${devnum}:${bootpart} ${kernel_addr_r} /boot/zImage; then
  if load ${devtype} ${devnum}:${bootpart} ${fdt_addr_r} /boot/dtbs/${fdtfile}; then
    if test -n ${otg_host}; then
      echo USB OTG: Host mode
      fdt addr ${fdt_addr_r}
      fdt get value usbotg /__symbols__ usbotg
      fdt set ${usbotg} dr_mode host
    else
      echo USB OTG: Peripheral mode
    fi
    if load ${devtype} ${devnum}:${bootpart} ${ramdisk_addr_r} /boot/initramfs-linux.img; then
      bootz ${kernel_addr_r} ${ramdisk_addr_r}:${filesize} ${fdt_addr_r};
    else
      bootz ${kernel_addr_r} - ${fdt_addr_r};
    fi
  fi
fi