Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753422AbZFYLa0 (ORCPT ); Thu, 25 Jun 2009 07:30:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752133AbZFYLaP (ORCPT ); Thu, 25 Jun 2009 07:30:15 -0400 Received: from moutng.kundenserver.de ([212.227.17.10]:54698 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752047AbZFYLaO (ORCPT ); Thu, 25 Jun 2009 07:30:14 -0400 From: Arnd Bergmann To: Greg Ungerer Subject: Re: [uClinux-dev] [PATCH] m68k: restore lost coldfire CLOCK_TICK_RATE Date: Thu, 25 Jun 2009 13:30:09 +0200 User-Agent: KMail/1.11.90 (Linux/2.6.30-9-generic; KDE/4.2.90; x86_64; ; ) Cc: uClinux development list , linux-kernel@vger.kernel.org References: <20090620201147.GA14095@frolo.macqel> <20090624211144.GA13167@frolo.macqel> <4A42C5DC.1040103@snapgear.com> In-Reply-To: <4A42C5DC.1040103@snapgear.com> X-Face: I@=L^?./?$U,EK.)V[4*>`zSqm0>65YtkOe>TFD'!aw?7OVv#~5xd\s,[~w]-J!)|%=]> =?utf-8?q?+=0A=09=7EohchhkRGW=3F=7C6=5FqTmkd=5Ft=3FLZC=23Q-=60=2E=60Y=2Ea=5E?= =?utf-8?q?3zb?=) =?utf-8?q?+U-JVN=5DWT=25cw=23=5BYo0=267C=26bL12wWGlZi=0A=09=7EJ=3B=5Cwg?= =?utf-8?q?=3B3zRnz?=,J"CT_)=\H'1/{?SR7GDu?WIopm.HaBG=QYj"NZD_[zrM\Gip^U MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200906251330.10127.arnd@arndb.de> X-Provags-ID: V01U2FsdGVkX18Qk8+85HuxWzn1NjvbkxkkRxsRFU46vLp1GQj nTQAtyojIQRJGtlZTLbVnAvzWsfbGhHqKTIoAsdKZE8rWTpogI low3nsncEXZ+VZcupEjNA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 740 Lines: 16 On Thursday 25 June 2009, Greg Ungerer wrote: > I thought it did that based on gettimeofday()? And that ends up > going through the underlying timer code, which for both of > the ColdFire timer types doesn't use CLOCK_TICK_RATE. They directly > use the MCF_CLK definition. The problem is the definition of TICK_NSEC, which is calculated from CLOCK_TICK_RATE. If you use the i8253 PIT tick rate, this will be slightly different from the regular TICK_NSEC value of (1000000000 / HZ). Arnd <>< -- 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/