[U-Boot] Problems with USB mass storage on at91sam9263

[Paal Bakken]

More testing....

It seems like I have one stick that generates the reported error. And this is of course THE one I have been testing with (Murphy is never resting...)

I have tried with four devices now
USB 1.0 128MB : Had to repartition
USB 2.0 512MB : Gives the reported problems (fine in linux and windows)
USB 2.0 2GB : Works without partitioning
USB 2.0 16GB: Works without partitioning

The response is the same on our own at91sam9263 board with 18.432MHz ocillator and the original at91sam9263ek with 16.36766MHz

So - I'm willing to rest my case :-) BUT there is something strange, since the "bad" stick works fine in Linux and Windows... 
-Any ideas about possible reasons for the difference? 
-Is there any specific known requirements for the sticks (except for FAT)


Best regards
Pål Bakken


> From: Jean-Christophe PLAGNIOL-VILLARD [plagnioj at jcrosoft.com]
> Sent: 2009-01-14 22:24:22 CET
> To: Paal Bakken [pabakken at online.no]
> Cc: Remy Bohmer [linux at bohmer.net], u-boot at lists.denx.de
> Subject: Re: [U-Boot] Problems with USB mass storage on at91sam9263
> 
> On 22:30 Wed 14 Jan     , Paal Bakken wrote:
> > I have testet a lot more and have found the following:
> > 
> > 1. I tried an old USB 1.0 stick, but got the same bad result...
> > 
> > 2. Then I took that USB 1.0 stick and deleted multiple partitions with linux fdisk and created a single bootable FAT32 partition. This variant worked without any problems in u-boot. (the multiple partitions seems to be typical from the vendors)
> > 
> > 3. Then I took the USB 2.0 stick (from the trace in my first mail) and did the same repartioning with fdisk. But this stick still gives the same bad result :-(
> > 
> > So????
> > 
> > Are there any known limitations/requirements to the u-boot USB implementation?
> > -USB1.0 vs USB2.0
> > -How to partition the stick (if the original partition can't be used)
> > -Other
> > 
> > ...and once more: the USB 2.0 stick works fine in linux....
> I'll take a look on my 9263ek
> 
> but I've test recently a 4GB usb 2.0 key on the at91rm9200ek with any problem
> 
> btw please limit your mail at 80chars per line
> 
> Best Regards,
> J.
>