#!/bin/sh button_name="dfu_bp" button_wait=5 dfu_config="/dev/nand0.barebox.bb(barebox)sr,/dev/nand0.kernel.bb(kernel)r,/dev/nand0.rootfs.bb(rootfs)r" if [ $at91_udc0.vbus != 1 ] then echo "No USB Device cable plugged, normal boot" exit fi gpio_get_value ${dfu_button} if [ $? != 0 ] then autoboot_timeout=16 echo "enable tty over USB Device, increase the boot delay to ${autoboot_timeout}s" usbserial exit fi echo "${button_name} pressed detected wait ${button_wait}s" timeout -s -a ${button_wait} if [ $at91_udc0.vbus != 1 ] then echo "No USB Device cable plugged, normal boot" exit fi gpio_get_value ${dfu_button} if [ $? != 0 ] then echo "${button_name} released, normal boot" autoboot_timeout=16 echo "enable tty over USB Device, increase the boot delay to ${autoboot_timeout}s" usbserial exit fi echo "" echo "Start DFU Mode" echo "" dfu ${dfu_config}