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

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Date:	Mon, 15 Sep 2014 09:00:22 +0200
From:	Tomeu Vizoso <tomeu@...euvizoso.net>
To:	Andrew Bresticker <abrestic@...omium.org>
Cc:	Stephen Warren <swarren@...dotorg.org>,
	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 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.

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

If things work for you with the same sources, .config and firmware, I
can only think of the hw being different (other hw revision?).

Regards,

Tomeu
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