From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Tue, 2 Jun 2009 17:06:09 +0200
Subject: [U-Boot] JFFS2 with NAND flash is very SLOW ...
In-Reply-To: <200906021559.43446.sr@denx.de>
References: <579B119545DAEF4689C8FBEEFEC5793F01D4FEDA3AE0@ATLMBX.verint.corp.verintsystems.com>
	<200906021531.58571.sr@denx.de> <200906021559.43446.sr@denx.de>
Message-ID: <20090602150609.GI6399@game.jcrosoft.org>
List-Id: <u-boot.lists.denx.de>
MIME-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
To: u-boot@lists.denx.de

On 15:59 Tue 02 Jun     , Stefan Roese wrote:
> 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.
I've not yet find time to implement the MMU support for arm (needed for
D-Cache support), I've plan to add it for the next release (not for this next
merge window)

I-Cache is supported

but 2 mins is really slow, could show us your code?

Best Regards,
J.