From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 17 Jun 2015 15:39:57 +0200
Subject: [U-Boot] [PATCH 0/2] sunxi: musb: Fix "usb reset" handling
In-Reply-To: <1434396106.2324.53.camel@collins>
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 <1434396106.2324.53.camel@collins>
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To: u-boot@lists.denx.de

Hi,

On 15-06-15 21:21, Paul Kocialkowski wrote:
> Le dimanche 14 juin 2015 ? 12:40 +0200, Hans de Goede a ?crit :
>> 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).

I've just retested current u-boot/master with just this patch and the
problem you are describing does not happen then.

Sorry about my sunxi-wip being broken atm I try to always keep it 100%
functional, but well it is a wip tree after all.

Regards,

Hans