[U-Boot] [patch] csb337 board support (ARM at91rm9200)
Jean-Christophe PLAGNIOL-VILLARD
plagnioj at jcrosoft.com
Tue Jun 30 00:44:10 CEST 2009
On 14:46 Mon 29 Jun , David Brownell wrote:
> On Monday 29 June 2009, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > > - USB didn't work; the software wouldn't detect usb-storage devices.
> > > > > So it's not yet enabled.
> > > >
> > > > what is the power on the USB?
> > >
> > > I don't understand the question. 5V of course. Not switchable.
> >
> > is the usb provide enough power to supply the usb key
>
> Well all the devices run on Linux just fine. Two were
> flash devices, one was an honest-to-gosh 200 MByte disk.
>
> So it's fairly clear the issue relates to OHCI support
> in u-boot, perhaps specific to the rm9200. Not hardware.
IIRC it's work on my rm9200ek
>
>
> > > > > +#if 0
> > > > please
> > > > if CONFIG_CMD_USB
> > > > > +/* REVISIT: USB failed to enumerate devices of any kind ... sw issues */
> > >
> > > An #if 0 won't work without completely re-whacking things.
> > >
> > > Right now the commands kick in *MUCH LATER* depending on
> > > whether the driver is available. And here, the driver
> > > (CONFIG_USB_OHCI_NEW driver) and its support is disabled
> > > since it's not working...
> > so move it
>
> That's what we call "way too much work". It involves
> completely restructuring things ... so that instead of
> enabling commands based on driver support (which may
> not be viable) it enables drivers (which may not work)
> based on commands (which should never have been enabled
> unless the relevant driver works).
so remove it until it will work
Best Regards,
J.
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