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From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 0/2] CFI: increase performance
Date: Mon, 26 Jan 2009 11:00:25 +0100	[thread overview]
Message-ID: <200901261100.25763.sr@denx.de> (raw)
In-Reply-To: <20081216162453.2866.750.stgit@tq-sewsrv-4.tq-net.de>

On Tuesday 16 December 2008, Jens Gehrlein wrote:
> 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?

Tested on AMCC Kilauea (PPC405EX, with 1*16bit Spansion S29GL512N.

Patch series applied to u-boot-cfi-flash/master. Thanks.

Best regards,
Stefan

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  parent reply	other threads:[~2009-01-26 10:00 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 ` [U-Boot] [PATCH 0/2] CFI: increase performance Jean-Christophe PLAGNIOL-VILLARD
2008-12-16 16:46   ` 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 [this message]
2009-01-26 10:19   ` Jens Gehrlein
2009-01-26 10:23     ` Stefan Roese

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