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From: Tony Lindgren <tony@atomide.com>
To: Jarkko Nikula <jarkko.nikula@bitmer.com>
Cc: linux-omap@vger.kernel.org
Subject: Re: Regression with 6cfcd5563b4f on BeagleBoard Rev C2
Date: Wed, 2 Jun 2021 08:30:49 +0300	[thread overview]
Message-ID: <YLcXicwDxue0a52/@atomide.com> (raw)
In-Reply-To: <68f28473-a196-b106-b4ae-e9162b7002e6@bitmer.com>

Hi,

* Jarkko Nikula <jarkko.nikula@bitmer.com> [210528 13:56]:
> My old BeagleBoard Rev C2 stopped booting properly.
> 
> Booting stops "Waiting for root device /dev/mmcblk0p2..." but goes
> forward if I feed e.g. ENTER over serial and have to press it through
> almost the whole userspace booting. At some point during process it
> seems to start working. Perhaps userspace fires some timer etc?

Sounds like the beagleboard timer errata handling is either picking
a wrong clockevent timer, or later on ti-sysc misdetects the active
timer for clockevent and idles it.

What does dmesg say in the beginning for clockevent and clocksource
timers?

> I bisected the issue into commit 6cfcd5563b4f
> ("clocksource/drivers/timer-ti-dm: Fix suspend and resume for am3 and
> am4"). I used omap2plus_defconfig.

OK

Regards,

Tony

  reply	other threads:[~2021-06-02  5:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-28 13:56 Regression with 6cfcd5563b4f on BeagleBoard Rev C2 Jarkko Nikula
2021-06-02  5:30 ` Tony Lindgren [this message]
2021-06-02 18:21   ` Jarkko Nikula
2021-06-04  6:35     ` Tony Lindgren
2021-06-04 15:41       ` Jarkko Nikula
2021-06-05  5:13         ` Tony Lindgren

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