From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Fri, 24 Jul 2009 10:05:03 +0200 Subject: [U-Boot] [PATCH] ppc4xx: Fix TLB reset problem with recent 44x images In-Reply-To: <1247579638-25656-1-git-send-email-sr@denx.de> References: <1247579638-25656-1-git-send-email-sr@denx.de> Message-ID: <200907241005.03255.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Tuesday 14 July 2009 15:53:58 Stefan Roese wrote: > Patch d873133f [ppc4xx: Add Sequoia RAM-booting target] broke "normal" > booting on some 44x platforms. This breakage is only noticed in some > cases while powercycling. As it seems, the code in question in start.S > didn't invalidate TLB #0. This makes sense since this TLB is used for > the bootrom mapping. With the patch mentioned above even TLB #0 got > invalidated resulting in an error later on. > > This patch now fixes this issue by only invalidating TLB #0 in the RAM- > booting case. > > Tested succesfully on Sequoia and Canyonlands. Applied to ppc4xx/master. Thanks. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de =====================================================================