linux-kernel - Re: [GIT PULL 1/2] bcm2835-dt-fixes-2017-10-06

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Date:   Wed, 1 Nov 2017 13:05:21 +0100
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Peter Robinson <pbrobinson@...il.com>,
        Matt Hart <matt@...tface.org>
Cc:     Marcel Holtmann <marcel@...tmann.org>,
        linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        Loic Poulain <loic.poulain@...il.com>,
        linux-arm-kernel@...ts.infradead.org, Eric Anholt <eric@...olt.net>
Subject: Re: [GIT PULL 1/2] bcm2835-dt-fixes-2017-10-06

Hi Matt, hi Peter,

Am 01.11.2017 um 10:37 schrieb Peter Robinson:
> On Tue, Oct 31, 2017 at 5:00 PM, Matt Hart <matt@...tface.org> wrote:
>> On 6 October 2017 at 23:14, Florian Fainelli <f.fainelli@...il.com> wrote:
>>> On 10/06/2017 03:05 PM, Eric Anholt wrote:
>>>> Hi Florian.  Here's a patch that's gone through a couple of revisions
>>>> on the list, that seriously fixes up the default serial behavior --
>>>> previously, without the right config.txt/cmdline bits, you'd often end
>>>> up with a hang with no output before booting completed.  It would be
>>>> great to get it into 4.14.
>>>>
>>>> The following changes since commit 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e:
>>>>
>>>>   Linux 4.14-rc1 (2017-09-16 15:47:51 -0700)
>>>>
>>>> are available in the git repository at:
>>>>
>>>>   git://github.com/anholt/linux tags/bcm2835-dt-fixes-2017-10-06
>>>>
>>>> for you to fetch changes up to f08f58a2bf68900a84e782b8c7ad701c0654173c:
>>>>
>>>>   ARM: dts: bcm283x: Fix console path on RPi3 (2017-10-06 13:04:56 -0700)
>>>>
>>>> ----------------------------------------------------------------
>>>> This pull request brings in a fix for default serial console setup on
>>>> RPi3, so it now comes up with no config.txt/cmdline.txt settings in
>>>> the firmware.
>>>>
>>>> ----------------------------------------------------------------
>>> Merged, thanks Eric
>>>
>>> --
>>> Florian
>> Hi all,
>>
>> I realise this patch has been in mainline for a more than a week, but
>> I've only recently had time to bisect broken rpi-3 boots in kernelci
>> and found f08f58a2bf68900a84e782b8c7ad701c0654173c as the cause.
>>
>> Kernelci boots the rpi3 using uboot, with console=ttyS0 in the command
>> line which now fails:
>> https://kernelci.org/boot/id/59f787f059b5147794ef1dcf/
>>
>> Is there an alias I can use for both before and after this patch?
>>
>> Mainline boots fine if I use console=ttyS1 or drop the console arg
>> altogether, but as we don't currently support different boot args per
>> tree, and we don't have the manpower to track this patch in all the
>> trees we test, we will have to switch to only boot testing mainline
>> from now on.
> Yes, I've seen the same in Fedora with that patch.
>
>
could you please describe the issue more in detail.

Does u-boot or Linux hang? Does u-boot select the wrong UART? Is there a
pinmux conflict?

Which u-boot version do you use?


Best regards

Stefan