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Date:	Tue, 16 Sep 2014 09:57:17 -0700
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Tomeu Vizoso <tomeu@...euvizoso.net>,
	Thierry Reding <thierry.reding@...il.com>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Jassi Brar <jassisinghbrar@...il.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Mathias Nyman <mathias.nyman@...el.com>,
	Grant Likely <grant.likely@...aro.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Arnd Bergmann <arnd@...db.de>,
	Kishon Vijay Abraham I <kishon@...com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v3 0/9] Tegra xHCI support

On Tue, Sep 16, 2014 at 8:26 AM, Stephen Warren <swarren@...dotorg.org> wrote:
> On 09/15/2014 01:30 PM, Andrew Bresticker wrote:
>>
>> On Mon, Sep 15, 2014 at 11:09 AM, Stephen Warren <swarren@...dotorg.org>
>> wrote:
>>>
>>> On 09/15/2014 11:06 AM, Andrew Bresticker wrote:
>>>>
>>>> On Mon, Sep 15, 2014 at 12:00 AM, Tomeu Vizoso <tomeu@...euvizoso.net>
>>>> wrote:
>>>>>
>>>>> On 12 September 2014 18:37, Andrew Bresticker <abrestic@...omium.org>
>>>>> wrote:
>>>>>>
>>>>>> On Tue, Sep 9, 2014 at 1:21 AM, Tomeu Vizoso <tomeu@...euvizoso.net>
>>>>>> wrote:
>>>>>>>
>>>>>>> On 8 September 2014 18:22, Andrew Bresticker <abrestic@...omium.org>
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> On Mon, Sep 8, 2014 at 8:34 AM, Tomeu Vizoso <tomeu@...euvizoso.net>
>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> On 2 September 2014 23:34, Andrew Bresticker
>>>>>>>>> <abrestic@...omium.org> wrote:
>>>>>>>>>>
>>>>>>>>>> Tested on Venice2, Jetson TK1, and Big with a variety of USB2.0
>>>>>>>>>> and
>>>>>>>>>> USB3.0 memory sticks and ethernet dongles using controller
>>>>>>>>>> firmware
>>>>>>>>>> recently posted by Andrew Chew [2].
>
> ...
>>>>
>>>> Stephen, Thierry, have either of you had a chance to test this series?
>>>
>>>
>>> I haven't had a chance to yet. I just went to try it out, and found that
>>> it
>>> depends on a whole slew of other patches that I don't have. Is there a
>>> git
>>> branch somewhere to save me having to track down all the dependencies?
>>
>>
>> Yes, Tomeu has the branch he used for testing here:
>> http://cgit.collabora.com/git/user/tomeu/linux.git/log/?h=3.17rc4-xhci
>
>
> Hmm. That git server was quite reluctant to cough up its bits, but it did
> eventually.
>
>> You'll also need the firmware Andrew Chew posted:
>> https://patchwork.ozlabs.org/patch/384013/
>
>
> The XHCI driver can't load its firmware unless it's a module; if I make it
> built-in, it fails immediately with error -2 during "Direct firmware
> loading". The driver needs to work with either immediate or deferred
> firmware loading.

If you want the driver to be built-in, you'll either need to build the
firmware in as well (i.e. EXTRA_FIRMWARE) or enable
FW_LOADER_USER_HELPER_FALLBACK to load with userspace/uevent (though
apparently this is deprecated).

> The following USB2 devices had problems:
>
> 0b95:7720 ASIX Electronics Corp. AX88772
>
>> [  489.140536] usb 1-3: new high-speed USB device number 81 using
>> xhci-tegra
>> [  489.260860] usb 1-3: device descriptor read/64, error -71
>> [  489.370804] xhci-tegra 70090000.usb: Setup ERROR: setup context command
>> for slot 1.
>> [  489.378463] usb 1-3: hub failed to enable device, error -22
>> [  489.500531] usb 1-3: new high-speed USB device number 82 using
>> xhci-tegra
>> [  489.655708] usb 1-3: can't set config #1, error -71
>> [  489.661231] usb 1-3: USB disconnect, device number 82
>> [  489.940531] usb 1-3: new high-speed USB device number 83 using
>> xhci-tegra
>> [  490.060860] usb 1-3: device descriptor read/64, error -71
>> [  490.170805] xhci-tegra 70090000.usb: Setup ERROR: setup context command
>> for slot 1.
>> [  490.178462] usb 1-3: hub failed to enable device, error -22
>
> (repeats over and over)
>
> 15a4:1336 Afatech Technologies, Inc. SDHC/MicroSD/MMC/MS/M2/CF/XD Flash Card
> Reader
>
> The power light comes on, and the activity light just keeps flashing fast.
> Usually the activity light flashes a couple times and then turns off. There
> is nothing in dmesg at all for this device.
>
> 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
>
> Not detected. There is nothing in dmesg at all for this device.
>
> 1bcf:0c31 Sunplus Innovation Technology Inc. SPIF30x Serial-ATA bridge
>
> Not detected. There is nothing in dmesg at all for this device.

Thanks, I'll try to figure out what's going on here.
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