From mboxrd@z Thu Jan 1 00:00:00 1970 From: sanguru Date: Wed, 5 Sep 2007 05:25:24 -0700 (PDT) Subject: [U-Boot-Users] Enabling Cache in MPC5200 In-Reply-To: References: <18006748.3362451188893499288.JavaMail.nabble@isper.nabble.com> Message-ID: <12496873.post@talk.nabble.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Thanks Detlev for the reply. Its a "standard lite5200" from Freescale. The cache gets enabled in some boards and not in some. 2 out of 4 boards we have, has this issue. I will check my RAM initialisation. Any more pointers will be helpful. -San Detlev Zundel wrote: > > Hi San, > >> I am using a LITE5200 evaluation board, and am not able to enable the >> cache. >> The execution hangs in these calls. >> void EnableInstCache(void) >> { > > [...] > >> } >> >> void EnableDataCache(void) >> { > > [...] > >> } >> What could be the problem? > > It might be one of our favourites, i.e. wrong ram initialization. > When enabling the caches, the CPU generates burst accesses for the > first time. It is pretty common (on this mailing list) that not quite > correctly initialized RAM works for single beat but fails for bursts. > So my advice would be to check the RAM init. > > Is is really a standard lite5200 board that you use? > > Cheers > Detlev > > -- > The best way to predict the future is to invent it. > -- Alan Kay > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ > _______________________________________________ > U-Boot-Users mailing list > U-Boot-Users at lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/u-boot-users > > -- View this message in context: http://www.nabble.com/Enabling-Cache-in-MPC5200-tf4376209.html#a12496873 Sent from the Uboot - Users mailing list archive at Nabble.com.