[PATCH v3 0/9] Tegra xHCI support

Stephen Warren swarren at wwwdotorg.org
Mon Sep 15 11:09:03 PDT 2014

On 09/15/2014 11:06 AM, Andrew Bresticker wrote:
> On Mon, Sep 15, 2014 at 12:00 AM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
>> On 12 September 2014 18:37, Andrew Bresticker <abrestic at chromium.org> wrote:
>>> On Tue, Sep 9, 2014 at 1:21 AM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
>>>> On 8 September 2014 18:22, Andrew Bresticker <abrestic at chromium.org> wrote:
>>>>> On Mon, Sep 8, 2014 at 8:34 AM, Tomeu Vizoso <tomeu at tomeuvizoso.net> wrote:
>>>>>> On 2 September 2014 23:34, Andrew Bresticker <abrestic at chromium.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.

More information about the linux-arm-kernel mailing list