From: Brian Norris <computersforpeace@gmail.com>
To: Josh Wu <josh.wu@atmel.com>
Cc: mark.rutland@arm.com, devicetree@vger.kernel.org,
pawel.moll@arm.com, ijc+devicetree@hellion.org.uk,
nicolas.ferre@atmel.com, robh+dt@kernel.org,
linux-mtd@lists.infradead.org, voice.shen@atmel.com,
galak@codeaurora.org
Subject: Re: [PATCH v3] mtd: atmel_nand: make PMECC lookup table and offset property optional
Date: Wed, 5 Nov 2014 14:44:47 -0800 [thread overview]
Message-ID: <20141105224447.GY23619@ld-irv-0074> (raw)
In-Reply-To: <1413021710-32264-1-git-send-email-josh.wu@atmel.com>
On Sat, Oct 11, 2014 at 06:01:50PM +0800, Josh Wu wrote:
> From: Josh Wu <Josh.wu@atmel.com>
>
> If there is no PMECC lookup table stored in ROM, or lookup table offset is
> not specified, PMECC driver should build it in DDR by itself.
>
> That make the PMECC driver work for some board which doesn't has PMECC
> lookup table in ROM.
>
> The PMECC use the BCH algorithm, so based on the build_gf_tables()
> function in lib/bch.c, we can build the Galois Field lookup table.
>
> For more information can refer to section 5.4 of PMECC controller
> application note:
> http://www.atmel.com/images/doc11127.pdf
>
> Signed-off-by: Josh Wu <josh.wu@atmel.com>
> Cc: devicetree@vger.kernel.org
Applied to l2-mtd.git.
Brian
prev parent reply other threads:[~2014-11-05 22:45 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-11 10:01 [PATCH v3] mtd: atmel_nand: make PMECC lookup table and offset property optional Josh Wu
2014-10-13 11:16 ` Mark Rutland
2014-10-13 11:31 ` Josh Wu
2014-10-14 10:34 ` Josh Wu
2014-10-16 13:39 ` Mark Rutland
2014-10-29 6:41 ` Josh Wu
2014-11-05 22:44 ` Brian Norris [this message]
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