Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760047AbXEROnY (ORCPT ); Fri, 18 May 2007 10:43:24 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754887AbXEROnR (ORCPT ); Fri, 18 May 2007 10:43:17 -0400 Received: from www.osadl.org ([213.239.205.134]:36711 "EHLO mail.tglx.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754443AbXEROnR (ORCPT ); Fri, 18 May 2007 10:43:17 -0400 Subject: Re: [PATCH 2.6.21-rt2] PowerPC: decrementer clockevent driver From: Thomas Gleixner To: Matt Sealey Cc: Sergei Shtylyov , Kumar Gala , linuxppc-dev@ozlabs.org, mingo@elte.hu, linux-kernel@vger.kernel.org, Robert Schwebel In-Reply-To: <464DB800.40702@genesi-usa.com> References: <200705172142.26739.sshtylyov@ru.mvista.com> <8E44DB06-767D-4864-8D2C-6132E4D4370B@kernel.crashing.org> <464C99FF.8080404@ru.mvista.com> <135307ED-7125-4859-8594-4B5B900D92D6@kernel.crashing.org> <464C9E67.2020909@ru.mvista.com> <6E0D5E13-C939-4FCE-81A3-F29DFA6436A2@kernel.crashing.org> <464CA222.8000407@ru.mvista.com> <464D9E7E.3090605@genesi-usa.com> <464DADFC.3080802@ru.mvista.com> <464DB800.40702@genesi-usa.com> Content-Type: text/plain Date: Fri, 18 May 2007 16:48:33 +0200 Message-Id: <1179499713.12981.75.camel@chaos> Mime-Version: 1.0 X-Mailer: Evolution 2.8.3 (2.8.3-2.fc6) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 661 Lines: 21 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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/