[U-Boot] Regression in usb-storage in u-boot 2015.04 ???

Marek Vasut marex at denx.de
Wed Sep 23 11:58:35 CEST 2015


On Wednesday, September 23, 2015 at 11:50:07 AM, Hans de Goede wrote:
> Hi,

Hi!

> On 14-08-15 01:16, Marek Vasut wrote:
> > On Monday, April 27, 2015 at 10:40:18 AM, Hans de Goede wrote:
> >> Hi,
> > 
> > Hi again!
> > 
> >> On 27-04-15 03:09, Marek Vasut wrote:
> >>> On Friday, March 27, 2015 at 09:47:25 AM, Hans de Goede wrote:
> >>>> Hi,
> >>> 
> >>> Hi!
> >>> 
> >>> [...]
> >>> 
> >>>>>           scanning usb for storage devices... 1 Storage Device(s)
> >>>>>           found
> >>>>> 
> >>>>> that EHCI timeout appears to be random, it pops up maybe 20% of the
> >>>>> time.
> >>>>> 
> >>>>> tried with a few different usb sticks and couldn't reproduce it.
> >>>> 
> >>>> Thanks that confirms that it is a musb issue, and likely one which has
> >>>> been around for ages.
> >>> 
> >>> Are there any updates on this musb issue please ?
> >> 
> >> No, since most people who are doing usb booting are using boards with
> >> a "proper" ehci usb controller I've not investigated this further.
> >> 
> >> Also this only happens after a usb reset, the first time the storage
> >> device works fine, iow this is a corner case. I agree it would be
> >> nice to fix it, but -ENOTIME.
> > 
> > CCing also Tom, since he has an MUSB device. Let's not forget about this
> > bug. Are there any news please ?
> 
> So I've finally been able to make some time to retest this, and
> as hoped the recent(ish) fixes to the sunxi-musb glue for fixing
> the gadget code not working when changing gadget type, also fix this.
> 
> TLDR: This was a sunxi specific issue and it is fixed now.

Thank you very much for looking into this!
I'm really happy I can tick this one off :)

Best regards,
Marek Vasut


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