From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from web15713.mail.cnb.yahoo.com (web15713.mail.cnb.yahoo.com [202.165.103.224]) by ozlabs.org (Postfix) with SMTP id 037DCDDE00 for ; Wed, 28 Feb 2007 17:57:38 +1100 (EST) Date: Wed, 28 Feb 2007 14:50:57 +0800 (CST) From: Sam Song Subject: Re: Memory unstable problem To: enorm In-Reply-To: <002b01c758b1$76b61a90$7809a8c0@lastone> MIME-Version: 1.0 Content-Type: text/plain; charset=gb2312 Message-ID: <212325.29587.qm@web15713.mail.cnb.yahoo.com> Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , enorm wrote: > Our board uses DDR2 667 MHz( the evm board can > support so), when its data rate is 320 or 400 > MHz it's stable, when data rate reaches 533 or > 667 MHz it became unstable. What may cause it? > Your answers are great appreciated. It is really a DDR2 setup issue. Pls try to adjust the timing parameter in your boot code. Questions could be better to sent to boot code list RATHER THAN OS list. Best regards, Sam ___________________________________________________________ ÑÅ»¢Ãâ·ÑÓÊÏä-3.5GÈÝÁ¿£¬20M¸½¼þ http://cn.mail.yahoo.com/