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#!/bin/sh
# Connect PC31 to GND to enable DFU
gpio_dfu=95
gpio_name="PC31"
gpio_wait=5
product_id=0x1234
vendor_id=0x4321
dfu_config="/dev/nand0.bootstrap.bb(bootstrap)sr,/dev/nand0.barebox.bb(barebox)sr,/dev/nand0.kernel.bb(kernel)r,/dev/nand0.rootfs.bb(rootfs)r"
echo
if [ $at91_udc0.vbus != 1 ]; then
echo "No USB Device cable plugged, normal boot"
exit
fi
gpio_get_value ${gpio_dfu}
if [ $? = 0 ]; then
echo "${gpio_name} low value detected wait ${gpio_wait}s"
timeout -s -a ${gpio_wait}
if [ $at91_udc0.vbus != 1 ]; then
echo "No USB Device cable plugged, normal boot"
exit
fi
gpio_get_value ${gpio_dfu}
if [ $? = 0 ]; then
echo "Start DFU Mode"
dfu ${dfu_config} -P ${product_id} -V ${vendor_id}
exit
fi
fi
global.autoboot_timeout=16
echo "enable tty over USB Device, increase the boot delay to ${global.autoboot_timeout}s"
usbserial
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