From: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
To: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
Martin Michlmayr <tbm-R+vWnYXSFMfQT0dZR+AlfA@public.gmane.org>
Cc: Tomeu Vizoso
<tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Stephen Warren <srwarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: Re: tegra-devfreq hangs TK1 with R21.4 u-boot
Date: Fri, 17 Jun 2016 10:30:07 -0600 [thread overview]
Message-ID: <5764258F.3060207@wwwdotorg.org> (raw)
In-Reply-To: <20160616161611.GC19360-EkSeR96xj6Pcmrwk2tT4+A@public.gmane.org>
On 06/16/2016 10:16 AM, Thierry Reding wrote:
> On Sat, Jun 11, 2016 at 08:45:41PM -0700, Martin Michlmayr wrote:
>> I noticed that the Jetson TK1 hangs during boot (when/before mounting
>> the SD disk) when CONFIG_ARM_TEGRA_DEVFREQ=y is set and when u-boot
>> from R21.4 is used (2014.10-rc2).
>>
>> The hang does not occur when I disable tegra-devfreq or when I use
>> tegra-devfreq in combination with u-boot 2016.03 (from DENX upstream,
>> built by Debian).
>>
>> Steps to reproduce:
>>
>> ARCH=arm make multi_v7_defconfig
>> Set CONFIG_ARM_TEGRA_DEVFREQ=y
>> Boot from an external SD card and it will hang when/before mounting the
>> SD card.
>
> Stephen, any ideas what might be going on here?
I can't think of anything obvious, and the commit history of the L4T
U-Boot is constructed in such a way that's it's essentially impossible
to follow, so I can't easily tell what changes exist in the L4T U-Boot
release that weren't upstream or vice-versa. If simply using mainline
U-Boot works and is an option for you, I'd suggest that.
next prev parent reply other threads:[~2016-06-17 16:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-12 3:45 tegra-devfreq hangs TK1 with R21.4 u-boot Martin Michlmayr
2016-06-12 17:15 ` Shreshtha
[not found] ` <loom.20160612T175114-608-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2016-06-12 17:31 ` Martin Michlmayr
[not found] ` <20160612173106.GA31522-IRMp5PtgtdoigzW5ZibpNwC/G2K4zDHf@public.gmane.org>
2016-06-17 16:17 ` Stephen Warren
[not found] ` <20160612034541.GA31426-IRMp5PtgtdoigzW5ZibpNwC/G2K4zDHf@public.gmane.org>
2016-06-13 5:45 ` Tomeu Vizoso
2016-06-16 16:16 ` Thierry Reding
[not found] ` <20160616161611.GC19360-EkSeR96xj6Pcmrwk2tT4+A@public.gmane.org>
2016-06-17 16:30 ` Stephen Warren [this message]
[not found] ` <5764258F.3060207-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2016-06-17 17:34 ` Martin Michlmayr
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