On Wed, Nov 28, 2018 at 03:53:45PM +0100, Erwin Rol wrote:
> Hallo All,
>
> I am trying to get USB device (DFU) to work on my Phytec Segin board
> (imx6ul SOC).
>
> I can upload barebox with imx-usb-loader and it starts fine (so USB
> hardware is working)
>
> Than when barebox runs I want to put that same USB port in DFU mode and
> update the nand flash (barebox, env, kernel, rootfs) via DFU.
>
> But I can't get it to work, I assume USB device mode setup is missing
> from the board setup, but I can't really find info on how to add it.
>
> Any hints are very welcome.
For custom AT91 based board I did:
$ cat arch/arm/boards/simear4/env/nv/usbgadget.dfu_function
/dev/dataflash0.at91bootstrap(bootstrap)sr,/dev/dataflash0.barebox(bootloader)sr,/dev/nand0.bb(system)ru
EOF
$ cat arch/arm/boards/simear4/env/init/usbgadget
#!/bin/sh
if [ ${fffa4000.gadget@xxxxxxxxxxxxx} != 1 ]
then
echo "No USB Device cable plugged, normal boot"
exit 0
fi
echo "USB Device cable plugged, waiting for DFU button"
global.autoboot_timeout=60
dfu_button=79
dfu=0
if gpio_get_value ${dfu_button}
then
dfu=1
else
timeout -s -a 1
if gpio_get_value ${dfu_button}
then
dfu=1
fi
fi
if [ ${dfu} -eq 1 ]
then
led green 1
led red 1
echo "Activating DFU"
usbgadget -a -D
else
led green 1
echo "Activating USB console"
usbgadget -a
fi
EOF
Note that current DFU implemetation does not follow DFU 1.1 specification,
that's something courious reader should fix ;-)
ladis
_______________________________________________
barebox mailing list
barebox@xxxxxxxxxxxxxxxxxxx
http://lists.infradead.org/mailman/listinfo/barebox
