From: drasko.draskovic@gmail.com (Drasko DRASKOVIC)
To: linux-arm-kernel@lists.infradead.org
Subject: Cortex A9 Private Timer
Date: Fri, 30 Aug 2013 17:14:17 +0200 [thread overview]
Message-ID: <CAEk6gTAZ9U3HgBpNDLR4ZuKkxdSHNj7wmtU_=n=-YUOaL_OnwQ@mail.gmail.com> (raw)
Hi all,
I was wondering is it possible to use ARM Cortex A9 private timer to
provoke interrupt due the timeout (use it as an alarm).
I have been looking in Cortex-A9 MPCore doc, and have seen that it is
routed to IRQ29.
In arch/arm/mach-vexpress/include/mach/irqs.h I can see IRQ_LOCALTIMER
defined, but I do not see it used anywhere. Is there some example of
this timer usage I can look at and see what have to be done to set up
this timer and associate irq, so that it is triggered each time the
timer expires.
BR,
Drasko
reply other threads:[~2013-08-30 15:14 UTC|newest]
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