linux-kernel - RE: [PATCH v2 0/3] mtd: nand: OMAP: ELM error correction support for BCH ecc

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Date:	Mon, 19 Nov 2012 12:44:22 +0000
From:	"Philip, Avinash" <avinashphilip@...com>
To:	"artem.bityutskiy@...ux.intel.com" <artem.bityutskiy@...ux.intel.com>
CC:	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	"Mohammed, Afzal" <afzal@...com>,
	"tony@...mide.com" <tony@...mide.com>,
	"broonie@...nsource.wolfsonmicro.com" 
	<broonie@...nsource.wolfsonmicro.com>,
	"rmk+kernel@....linux.org.uk" <rmk+kernel@....linux.org.uk>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"Nori, Sekhar" <nsekhar@...com>,
	"Hebbar, Gururaja" <gururaja.hebbar@...com>,
	"ivan.djelic@...rot.com" <ivan.djelic@...rot.com>
Subject: RE: [PATCH v2 0/3] mtd: nand: OMAP: ELM error correction support
 for BCH ecc


On Thu, Nov 15, 2012 at 16:52:14, Artem Bityutskiy wrote:
> On Wed, 2012-10-31 at 12:38 +0530, Philip, Avinash wrote:
> > Support to use ELM as BCH 4 & 8 bit error correction module. Also performance
> > enhancement by adding single shot read_page and write_page functions for the
> > nand flashes with page size less than 4 KB.
> > 
> > ELM module can be used to correct errors reported by BCH 4, 8 & 16 bit
> > ECC scheme. For now only 4 & 8 bit support is added.
> > 
> > BCH 4 & 8 bit error detection support is already available in mainline
> > kernel and works with software error correction.
> > 
> > This series is based on [1] and tested with RFC: OMAP GPMC bindings
> > patch series
> > 
> > 1. linux-next/20121030
> 
> Would you please re-send a version which cleanly applies to the
> l2-mtd.git tree? This series has many conflicts. Thanks!

Artem,

Omap nand driver is being changed considerably with Afzal's omap-gpmc cleanup
series for common arm zImage [2] and those changes move many
of the nand related code from platform folders to omap nand driver.

Omap-gpmc changes are present in Tony's " omap-for-v3.8/cleanup-headers-gpmc"
branch [3]and is present in linux-next also, but is not present in l2-mtd.
Tony has signed tag including omap-gpmc cleanup series,
"omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3-signed" [4]

If this series is made over l2-mtd, and it would cause lot of conflict
with omap-gpmc cleanup series.

I am not sure how this dependency has to be handled for this series,
let me know whether you still want it to be made over l2-mtd?

2. http://markmail.org/message/ev67wm7irgc2qc5d#query:+page:1+mid:wgjdv6fsfghnua5z+state:results
3. http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=shortlog;h=refs/heads/omap-for-v3.8/cleanup-headers-gpmc
4. http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=tag;h=refs/tags/omap-for-v3.8/cleanup-headers-prepare-multiplatform-v3-signed


Thanks
Avinash

> 
> git://git.infradead.org/users/dedekind/l2-mtd.git
> 
> -- 
> Best Regards,
> Artem Bityutskiy
>