[U-Boot] [PATCH 3/3] omap3_beagle: enable EHCI and USB storage.

[Christian Spielberger]

On 05/27/2011 09:34 AM, Alexander Holler wrote:
> Am 26.05.2011 17:41, schrieb Alexander Holler:
>> Am 26.05.2011 13:30, schrieb Christian Spielberger:
> ...
>> But even than USB doesn't seem to work on a BeagleBoard XM (at least
>> some people told me so). I don't have a XM, so I can't help more there.
>> It might be a problem with (a needed reset of) the HUB which is included
>> on the XM, I don't know.
>
> I forgot to mention that the PHY reset on the XM works inverse than for
> the BeagleBoard w/o XM. Haven't known this, when I've written that patch.
>
> Regards,
>
> Alexander
>
>

We checked what you mentioned but found that the PHY reset is identical 
between XM and C4. The reset signal is ok. That is what we saw on an 
oscilloscope.

We also found that the USB2HS_CLK initialization does not work, also 
with the oscilloscope. I am going to check the CLK initialization 
sequence in beagle.c/ehci_hcd_init.

regards,
chris.