[U-Boot-Users] Interrupts in at91rm9200 u-boot.

Frank Mandarino
2007-07-12T15:09:19Z

Joey Oravec wrote:
> "Leonid" <Leonid@a-k-a.net> wrote in message
> news:406A31B117F2734987636D6CCC93EE3C01CAD749 at ehost011-3.exch011.intermedia.net...
>> I'm trying to implement simple USB device in u-boot for at91rm9200 and
>> as a first step I want to see that I can work with interrupts there. I
>> added temporary device initialization code to usb_lowlevel_init():
>
> I used the USB Device port as a console for my at91sam9261, acting as a
> usbser.sys compatible usb-to-serial port. It was a lot easier to use a
> polling interface because there was some Atmel sample code available.
>
> During early startup, I add the usb driver with device_register(). Each
> function polls the status register, which works out fine since uboot calls
> tstc constantly to look for a new character or putc to display something.
> Finally I added a check for the device sense (power) to skip the
> initialization completely if we know it's not connected to anything.
>
> -joey

Hi Joey,

If possible, I would also be interested in obtaining your U-Boot USB
device code.

I tried creating a usbdcore_at91.c file to fit into the existing U-Boot
usbdcore driver for the TI OMAP1510 a few months ago and didn't get very
far, mainly due to the way the AT91 UDP supports various transactions
in hardware.

Thanks,
../fam
--
Frank Mandarino fmandarino(a)endrelia.com
Endrelia Technologies Inc.
Toronto, Ontario, Canada