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

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Message-ID: <54172B3F.9030901@wwwdotorg.org>
Date:	Mon, 15 Sep 2014 12:09:03 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Andrew Bresticker <abrestic@...omium.org>,
	Tomeu Vizoso <tomeu@...euvizoso.net>,
	Thierry Reding <thierry.reding@...il.com>
CC:	"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 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?

Thierry is on vacation right now. I think he was expecting to return 
sometime this week, but the start of his vacation was delayed, so 
perhaps he'll be back a bit later too.

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