linux-kernel - Re: [PATCH v3 0/9] Tegra xHCI support

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Message-ID: <CAL1qeaEK=C4j+G5CA_91xJNe25d=-y47EyZAYnaMh46fNYVDAw@mail.gmail.com>
Date:	Mon, 15 Sep 2014 12:30:53 -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 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].
>>>>>>>
>>>>>>>
>>>>>>> I have had mixed results when testing this on a Jetson TK1 board. Of
>>>>>>> 8
>>>>>>> USB devices I tested with, about half where probed correctly, but the
>>>>>>> other half repeatedly fail in hub_port_init because in the GET_STATUS
>>>>>>> right after the reset, the C_PORT_CONNECTION bit is set.
>>>>>>>
>>>>>>> I don't see any correlation between the failure and the kind of usb
>>>>>>> device, but I don't have much experience with USB implementations
>>>>>>> either.
>>>>>>
>>>>>>
>>>>>> Hmm... I haven't seen that before.  Which particular devices were you
>>>>>> using?
>>>>>
>>>>>
>>>>> Here they are:
>>>>>
>>>>> work:
>>>>>
>>>>> Genius keyboard: 05d5:6782
>>>>> Logitech mouse: 046d:c06a
>>>>> Denver MP3 player: 10d6:1100
>>>>> Atheros Bluetooth dongle: 0cf3:3005
>>>>>
>>>>> don't work:
>>>>>
>>>>> MCS7830 ethernet dongle: 9710:7830
>>>>> Genesys Logic hub: 05e3:0608
>>>>
>>>>
>>>> I tried the hub and it works just fine for me... Have you tried this
>>>> on any other boards like Big or Blaze?
>>>
>>>
>>> I have a Blaze here, but haven't been able to get the external ports
>>> to power up. I don't have schematics nor a strong interest to get that
>>> fixed myself, as I can test my code just fine with the Blaze's
>>> internal camera and the devices that do work on the Jetson.
>>
>>
>> Ok, since Blaze has been announced, hopefully we can post a
>> device-tree for it soon.
>>
>>> I'm using the firmware file that was posted recently:
>>>
>>> xhci-tegra 70090000.usb: Firmware timestamp: 2014-05-02 02:22:50 UTC,
>>> Falcon state 0x20
>>
>>
>> Yup, I'm using the same firmware.
>>
>>> If things work for you with the same sources, .config and firmware, I
>>> can only think of the hw being different (other hw revision?).
>>
>>
>> That, or perhaps bootloader differences?  I'm using mainline U-Boot.
>>
>> 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

You'll also need the firmware Andrew Chew posted:
https://patchwork.ozlabs.org/patch/384013/
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