From: "Mehaffey, John" <John_Mehaffey@mentor.com>
To: "hs@denx.de" <hs@denx.de>,
"linux-embedded@vger.kernel.org" <linux-embedded@vger.kernel.org>
Cc: Wolfgang Denk <wd@denx.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: RE: GPIO triggers kernel reboot
Date: Sat, 25 Jan 2014 20:24:33 +0000 [thread overview]
Message-ID: <371E240E6FC1D44DA5E51EE9DCDCB7845E5EA0E1@NA-MBX-01.mgc.mentorg.com> (raw)
In-Reply-To: <371E240E6FC1D44DA5E51EE9DCDCB7845E5EA0A1@NA-MBX-01.mgc.mentorg.com>
> -----Original Message-----
> From: linux-embedded-owner@vger.kernel.org
> [mailto:linux-embedded-owner@vger.kernel.org] On Behalf Of Heiko
> Schocher
> Sent: Saturday, January 25, 2014 8:03 AM
> To: linux-embedded@vger.kernel.org
> Cc: Wolfgang Denk; linux-arm-kernel@lists.infradead.org
> Subject: GPIO triggers kernel reboot
>
> Hello all,
>
> is it possible to reboot current mainline kernel triggered from a GPIO in kernel space?
>
> If not, how can be done this, so that it has a chance to go into mainline?
>
> Thanks for any suggestions
>
> bye,
> Heiko
Hi Heiko,
Call kexec() from the GPIO driver.
It will take some effort to get it right :)
Or if a simple reboot is all that you want, examine the several reboot APIs in kernel/reboot.c
Sincerely,
John Mehaffey
Principal Engineer, Automotive
Mentor Graphics
> --
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2014-01-25 20:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-25 16:02 GPIO triggers kernel reboot Heiko Schocher
2014-01-25 19:11 ` Mehaffey, John
2014-01-25 20:24 ` Mehaffey, John [this message]
2014-01-27 6:17 ` Heiko Schocher
2014-01-26 2:54 ` Florian Fainelli
[not found] ` <CALLGbRKK_ZcOB6nAiV67njrphXMQXN7Y2s81n5k3PWoSVrsrUw@mail.gmail.com>
2014-01-27 6:22 ` Heiko Schocher
2014-01-27 8:08 ` Arnaud Patard
2014-01-27 8:25 ` Geert Uytterhoeven
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