linux-kernel - Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver

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Message-Id: <1179499713.12981.75.camel@chaos>
Date:	Fri, 18 May 2007 16:48:33 +0200
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Matt Sealey <matt@...esi-usa.com>
Cc:	Sergei Shtylyov <sshtylyov@...mvista.com>,
	Kumar Gala <galak@...nel.crashing.org>,
	linuxppc-dev@...abs.org, mingo@...e.hu,
	linux-kernel@...r.kernel.org,
	Robert Schwebel <r.schwebel@...gutronix.de>
Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver

On Fri, 2007-05-18 at 15:28 +0100, Matt Sealey wrote:
> >> I guess the real question is, how high resolution does a high resolution
> >> timer need to be,
> > 
> >    In the order of microseconds.
> 
> I think both the MPC52xx GPT0-7 and the SLT0-1 fulfil this fairly
> easily.

There is some basic work for MPC5200 available:

http://www.pengutronix.de/oselas/bsp/phytec/index_en.html#phyCORE-MPC5200B-tiny

	tglx


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