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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 0/2] CFI: increase performance
Date: Tue, 16 Dec 2008 17:36:02 +0100	[thread overview]
Message-ID: <20081216163602.GC24266@game.jcrosoft.org> (raw)
In-Reply-To: <20081216162453.2866.750.stgit@tq-sewsrv-4.tq-net.de>

On 17:25 Tue 16 Dec     , Jens Gehrlein wrote:
> Hi list,
> 
> The following patches should increase the performance of the CFI driver,
> particularly with regard to single word programming mode.
> 
> I tested it on TQM5200S with NOR-Flash Samsung K8P2815UQB, which has no
> write buffer. At least no write buffer, that could be programmed using
> standard commands.
> 
> Performance increase on this TQM is about factor 2.6 (37 KiB/s -> 95 KiB/s).
> On the same module with Spansion S29GL128N (with write buffer) it is about
> factor 1.2 (455 KiB/s -> 585 KiB/s).
> 
> TQM5200 is a bottom boot module with 2x16 Bit Flash connection. Could someone
> test the patches on other HW, particularly top boot, other CPU, other flash
> width, please?
Could you try it against the qemu SVN HEAD

Best Regards,
J.

  parent reply	other threads:[~2008-12-16 16:36 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-16 16:25 [U-Boot] [PATCH 0/2] CFI: increase performance Jens Gehrlein
2008-12-16 16:25 ` [U-Boot] [PATCH 1/2] CFI: avoid redundant function call in single word programming mode Jens Gehrlein
2008-12-16 16:25 ` [U-Boot] [PATCH 2/2] CFI: increase performance of function find_sector() Jens Gehrlein
2008-12-16 16:36 ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2008-12-16 16:46   ` [U-Boot] [PATCH 0/2] CFI: increase performance Jens Gehrlein
2008-12-16 17:13     ` Jean-Christophe PLAGNIOL-VILLARD
2008-12-17  6:24       ` Jens Gehrlein
2008-12-17  8:22         ` Stefan Roese
2008-12-17  8:56         ` Wolfgang Denk
2008-12-17  9:04         ` Jean-Christophe PLAGNIOL-VILLARD
2009-01-26 10:00 ` Stefan Roese
2009-01-26 10:19   ` Jens Gehrlein
2009-01-26 10:23     ` Stefan Roese

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