[U-Boot] [PATCH 0/2] sunxi: musb: Fix "usb reset" handling

Paul Kocialkowski contact at paulk.fr
Fri Jun 19 11:11:26 CEST 2015


Le mercredi 17 juin 2015 à 15:39 +0200, Hans de Goede a écrit :
> Hi,
> 
> On 15-06-15 21:21, Paul Kocialkowski wrote:
> > Le dimanche 14 juin 2015 à 12:40 +0200, Hans de Goede a écrit :
> >> Hi Ian, Paul,
> >>
> >> Here is a patch to fix the problems where most usb devices will no longer
> >> work after a "usb reset ", when connected to the otg controller in host
> >> mode + a related cleanup patch.
> >
> > This works fine for an USB storage device and an USB2 keyboard but does
> > not work with an USB1 keyboard, with error:
> >
> > sunxi# usb reset
> > resetting USB...
> > USB0:   scanning bus 0 for devices... USB device descriptor short read
> > (expected 8, got 0)
> > No USB Device found
> 
> Hmm, did you test my sunxi-wip branch perhaps? This bug does exist there,
> but it is the result of me refactoring things so that the musb code can
> use the device-model when build in host mode, which will allow enabling
> both the otg port in host mode and regular usb hosts in a single build,
> which is esp. useful for boards which have the otg hooked up in host-only
> mode (e.g. connected to an usb-a receptacle, or usb <-> sata bridge).

This is nice, thanks a lot for all your work!

I did however test on top of the regular U-Boot tree. I'll try again in
a few days to see if it still happens.

-- 
Paul Kocialkowski, Replicant developer

Replicant is a fully free Android distribution running on several
devices, a free software mobile operating system putting the emphasis on
freedom and privacy/security.

Website: http://www.replicant.us/
Blog: http://blog.replicant.us/
Wiki/tracker/forums: http://redmine.replicant.us/
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