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From: David Brownell <>
To: Bosko Radivojevic <>
Cc: lkml <>
Subject: Re: High resolution timers on AT91SAM926x
Date: Sat, 1 Mar 2008 14:57:40 -0800	[thread overview]
Message-ID: <> (raw)

> Is there a way to enable high resolution timers on AT91SAM926x?

Update PIT to support the clocksource/clockevent framework:

Declare timer/counter block platform devices:

Use timer/counter blocks for better clocksource and clockevents:

The focus in that last patch is on NO_HZ support -- so the
clockevents run at 32 KiHz (about 31 usec precision for HRT)
to allow overall HZ to run below 1 where practical.   If you
need even higher precision, you could update that clockevent
code to use a different base clock.

Those last two patches are in some MM tree, and Haavard has
some updates to then (which don't much affect functionality).

I understand the upcoming 2.6.24-at91 patch will include the
first two patches.

- Dave

             reply	other threads:[~2008-03-01 22:58 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-01 22:57 David Brownell [this message]
2008-03-03 10:26 ` Bosko Radivojevic
2008-03-03 18:39   ` David Brownell
2008-03-03 21:42     ` Bosko Radivojevic
2008-03-04  1:29       ` David Brownell
2008-03-04 20:22         ` Remy Bohmer
2008-03-04 20:55           ` Wolfgang Grandegger
     [not found] <>
2008-03-01 17:59 ` Bosko Radivojevic

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