From: eric@eukrea.com (Eric Bénard)
To: linux-arm-kernel@lists.infradead.org
Subject: I.MX35 GPIO IRQ + Preempt -> Oops
Date: Mon, 04 Oct 2010 10:08:44 +0200 [thread overview]
Message-ID: <4CA98B8C.4010106@eukrea.com> (raw)
In-Reply-To: <20101004073920.GM28679@pengutronix.de>
Hi Uwe,
Le 04/10/2010 09:39, Uwe Kleine-K?nig a ?crit :
> On Sun, Oct 03, 2010 at 07:15:21PM +0200, Eric B?nard wrote:
>> Le 03/10/2010 18:20, Russell King - ARM Linux a ?crit :
>> the FIQ is used for the imx-ssi driver.
>>
>> It seems that removing the cpu_do_idle() call in
>> plat-mxc/include/mach/system.h "fix" the problem.
> hmmm
>
> Does deselecting imx-ssi "fixes" the problem, too?
>
not tested yet.
> Do you have traffic on the ssi unit when the problem occurs?
>
no but looking at the errata (and the i.MX31's one which is very
similar) it's not clearly mentionned that the FIQ has to be used in
order to trigger the problem (they talk of FIQ/IRQ).
Eric
next prev parent reply other threads:[~2010-10-04 8:08 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-02 13:55 I.MX35 GPIO IRQ + Preempt -> Oops Eric Bénard
2010-10-03 11:41 ` Russell King - ARM Linux
2010-10-03 15:25 ` Eric Bénard
2010-10-03 16:20 ` Russell King - ARM Linux
2010-10-03 17:15 ` Eric Bénard
2010-10-04 7:39 ` Uwe Kleine-König
2010-10-04 8:08 ` Eric Bénard [this message]
2010-10-04 12:07 ` Eric Bénard
2010-10-05 5:06 ` Marc Reilly
2010-10-05 7:28 ` Eric Bénard
2010-10-05 9:13 ` Eric Bénard
2010-10-05 9:25 ` [PATCH/RFC] i.MX31 and i.MX35 : fix errate TLSbo65953 and ENGcm09472 Eric Bénard
2010-10-05 9:45 ` Sascha Hauer
2010-10-05 12:00 ` [PATCH v2] " Eric Bénard
2010-10-05 18:33 ` Uwe Kleine-König
2010-10-05 19:31 ` Eric Bénard
2010-10-05 19:46 ` Uwe Kleine-König
2010-10-05 20:00 ` Eric Bénard
2010-10-05 20:04 ` Uwe Kleine-König
2010-10-05 20:27 ` Eric Bénard
2010-10-06 2:28 ` Nicolas Pitre
2010-10-06 11:09 ` Eric Bénard
2010-10-08 8:49 ` [PATCH v3] " Eric Bénard
2010-10-07 7:27 ` [PATCH v2] " Russell King - ARM Linux
2010-10-05 16:29 ` [PATCH/RFC] " Uwe Kleine-König
2010-10-05 16:48 ` Eric Bénard
2010-10-05 17:40 ` Uwe Kleine-König
2010-10-06 6:35 ` Daniel Mack
2010-10-06 7:03 ` Uwe Kleine-König
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