From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Tue, 2 Jun 2009 15:59:43 +0200 Subject: [U-Boot] JFFS2 with NAND flash is very SLOW ... In-Reply-To: <00c701c9e389$ec518540$c4f48fc0$@savary@kerlink.fr> References: <579B119545DAEF4689C8FBEEFEC5793F01D4FEDA3AE0@ATLMBX.verint.corp.verintsystems.com> <200906021531.58571.sr@denx.de> <00c701c9e389$ec518540$c4f48fc0$@savary@kerlink.fr> Message-ID: <200906021559.43446.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 02 June 2009 15:56:25 Pierre Savary wrote: > In fact it is not better with this config: > #define CONFIG_ICACHE_ON > #define CONFIG_DCACHE_ON > #define CONFIG_SYS_DCACHE_SIZE 32768 > #define CONFIG_SYS_ICACHE_SIZE 32768 > #define CONFIG_SYS_CACHELINE_SIZE 32 > > My architecture is arm926ejs and it seems that CACHE management is not > implemented... > > I just measure a load of uImage (2MB) ... it takes more than 2 minutes :-( Yes, this is really slow. Jean-Christophe will be able to tell us if caches are supported on this platform in U-Boot. 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 =====================================================================