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Old 06-22-2011, 01:23 PM
Leann Ogasawara
 
Default Fix usb on omap hw when gcc 4.6 is used

On Wed, 2011-06-22 at 15:17 +0200, Paolo Pisati wrote:
> SRU Justification:
>
> Impact: when compiled with gcc 4.6, we loose usb on every omap* hw.
> Fix: see attached patch.
> Testcase: compile an omap[4] kernel with gcc 4.6 and boot it, you will
> notice there are no usb devices present.
>
> beagle xm, natty kernel and gcc 4.6:
>
> flag@ubuntu:~$ lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>
> versus
>
> beagle xm, natty kernel and gcc 4.6 + ehci fix:
>
> flag@ubuntu:~$ lsusb
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
> Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
> Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
> Bus 001 Device 004: ID 03f0:5307 Hewlett-Packard
>
> BugLink: http://launchpad.net/bug/791552
>
> upstream commit 139540170d9d9b7ead3caaf540f161756b356d56

Acked-by: Leann Ogasawara <leann.ogasawara@canonical.com>



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Old 07-06-2011, 06:06 AM
Bryan Wu
 
Default Fix usb on omap hw when gcc 4.6 is used

Andy and Tim,

I was pinged by Adam for this EHCI fixing patch, which is very
important for Oneiric kernel of ti-omap4, because we are still using
Natty kernel for our Oneiric image.

Would you please upload Natty ti-omap4 kernel? This is patch is in our
repo but not upload yet. I think we need this for our A2 image
testing.

Thanks,
-Bryan

On Wed, Jun 22, 2011 at 9:23 PM, Leann Ogasawara
<leann.ogasawara@canonical.com> wrote:
> On Wed, 2011-06-22 at 15:17 +0200, Paolo Pisati wrote:
>> SRU Justification:
>>
>> Impact: when compiled with gcc 4.6, we loose usb on every omap* hw.
>> Fix: see attached patch.
>> Testcase: compile an omap[4] kernel with gcc 4.6 and boot it, you will
>> notice there are no usb devices present.
>>
>> beagle xm, natty kernel and gcc 4.6:
>>
>> flag@ubuntu:~$ lsusb
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>
>> versus
>>
>> beagle xm, natty kernel and gcc 4.6 + ehci fix:
>>
>> flag@ubuntu:~$ lsusb
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
>> Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
>> Bus 001 Device 004: ID 03f0:5307 Hewlett-Packard
>>
>> BugLink: http://launchpad.net/bug/791552
>>
>> upstream commit 139540170d9d9b7ead3caaf540f161756b356d56
>
> Acked-by: Leann Ogasawara <leann.ogasawara@canonical.com>
>
>
>
> --
> kernel-team mailing list
> kernel-team@lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/kernel-team
>



--
Bryan Wu <bryan.wu@canonical.com>
Kernel Developer * *+86.138-1617-6545 Mobile
Ubuntu Kernel Team
Canonical Ltd. * * *www.canonical.com
Ubuntu - Linux for human beings | www.ubuntu.com

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