From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from outbound3-dub-R.bigfish.com (outbound-dub.frontbridge.com [213.199.154.16]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "*.bigfish.com", Issuer "*.bigfish.com" (not verified)) by ozlabs.org (Postfix) with ESMTP id 25767DDDF6 for ; Thu, 7 Feb 2008 11:10:27 +1100 (EST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Subject: RE: System Clock runaway on Xilinx platform Date: Wed, 6 Feb 2008 16:10:18 -0800 In-Reply-To: <15312437.post@talk.nabble.com> References: <15312437.post@talk.nabble.com> From: "Stephen Neuendorffer" To: "khollan" , Message-Id: <20080207001020.0E2696E0075@mail129-dub.bigfish.com> List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , The processor is an integer factor faster than the bus, unless you're doing something really unusual. Are you sure that's not 300 and 150? 175/150 =3D 1.16, which might be the difference you're seeing? Steve > -----Original Message----- > From: linuxppc-embedded-bounces+stephen=3Dneuendorffer.name@ozlabs.org [mailto:linuxppc-embedded- > bounces+stephen=3Dneuendorffer.name@ozlabs.org] On Behalf Of khollan > Sent: Wednesday, February 06, 2008 11:42 AM > To: linuxppc-embedded@ozlabs.org > Subject: System Clock runaway on Xilinx platform >=20 >=20 > Hi all, >=20 > Thanks for the help so far! > I'm now running linux 2.6.21 on my custom virtex 4 board modeled after the > ml410. The cpu clock is 300MHz and the PLB bus is 175MHz. >=20 > My question is which clock is the linux system clock that keeps track of the > date derived from? I set my date with rdate -s time.mit.edu at boot and > then compare with the date command and rdate -p time.mit.edu and they are > off by 20 or so seconds even just after a few minutes, this trend continues > and it will be off by a day after a few hours. I think I just don't have > something defined correctly but I can't figure out which. >=20 > Thanks >=20 > Kevin > -- > View this message in context: http://www.nabble.com/System-Clock-runaway-on-Xilinx-platform- > tp15312437p15312437.html > Sent from the linuxppc-embedded mailing list archive at Nabble.com. >=20 > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded