From: Dave.Martin@arm.com (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: Can't get FIQ interrupt to work on i.mx233
Date: Tue, 16 Jul 2013 17:16:43 +0100 [thread overview]
Message-ID: <20130716161643.GB3428@localhost.localdomain> (raw)
In-Reply-To: <51E5322B.8080602@gmail.com>
On Tue, Jul 16, 2013 at 08:44:43PM +0900, Juha Lumme wrote:
> Hi Russel,
>
> Thanks for your reply.
> And thanks for pointing out the wrong instruction there with the ldr
> instruction.
>
> However, unfortunately the code still doesn't seem to trigger
> anything (neither to clear the IRQ bit in the timer, nor the GPIO
> output).. It seems to me as if the handler never gets called. Is
> there a good way to confirm that any activity is actually triggered
> when timer3 reaches 0, and the IRQ bit is set to 1 ?
>
A brutal, but simple, way to confirm that your handler is being called
is to try putting an infinite loop in there:
b .
If your board then locks up, the handler is almost certainly getting
called.
Cheers
---Dave
next prev parent reply other threads:[~2013-07-16 16:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-16 1:59 Can't get FIQ interrupt to work on i.mx233 Juha Lumme
2013-07-16 8:11 ` Russell King - ARM Linux
2013-07-16 11:44 ` Juha Lumme
2013-07-16 16:16 ` Dave Martin [this message]
2013-07-17 13:42 ` Juha Lumme
2013-07-18 14:19 ` Dave Martin
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