I too am interested in this. I am running EHCI and have had problems with a 
number of USB storage devices, one of which (the SanDisk Cruzer) causes a 
crash due to it reporting the maximum LUN as 1.  I'm also seeing some 
interesting performance issues with ext2 being extremely slow compared to FAT.

Additionally, I have been trying various USB hubs with EHCI and have found 
that a large percentage fail to work.  Hopefully I'll look into it more soon 
when I get ahold of our USB analyzer again.

-Aaron

On Tuesday, February 01, 2011 11:34:00 am Remy Bohmer wrote:
> Hi,
> 
> 2011/2/1 Simon Glass <s...@chromium.org>:
> > Hi Remy,
> > Still waiting on some boards to try, unfortunately. I expect it will
> > happen in the next 2 weeks though (ARM9 and OMAP4 platforms). Once I get
> > to the bottom of it I will split the patches as requested. I have not
> > seen reports from other users of U-Boot. Also working on USB host
> > Ethernet.
> > Regards,
> > Simon
> 
> FWIW: I tested it on Atmel at91 and it does not seem to break OHCI, it
> does not seem to fix some troubles USB sticks I have here either...
> 
> Kind regards,
> 
> Remy
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