Chipidea usb otg support for IMX/MXS (device functionality)

[Chen Peter-B29397]

> Hi Peter,
> 
> > > Peter, I dunno if you are already aware of it, but the USB peripheral
> > > mode hangs
> > > on MX233. It's easy to replicate for example if you try to run CDC
> > > ethernet over
> > > the USB peripheral mode, then telnet into the board and run "dmesg" .
> > > This will
> > > trigger a "larger" data transfer which will make the UDC driver hang.
> > > This
> > > doesn't happen on MX28 so it must be some MX233-specific thing.
> >
> > Marek, Have you tried below?
> >
> > http://marc.info/?l=linux-usb&m=136537318510847&w=2
> >
> > It may not the USB itself problem, the mx23's usb is almost
> > the same with mx28's.
> 
> This also happens on a different MX23-based board for me. This other
> board I
> tried has mDDR DRAM and the DRAM is operating correctly. The 96MHz thing
> people
> complained about in the Olimex forum is resolved now.
> 
 
Add shawn.

Marek, have you tried mx23 evk?

Shawn, marek reported the udc function at mx23 works abnormal, but it works
good at mx28. Have you tried mx23 udc recently?

Best regards,
Peter