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SubjectRE: [LINUX PATCH v12 3/3] mtd: rawnand: arasan: Add support for Arasan NAND Flash Controller
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Hi Miquel,

> -----Original Message-----
> From: Miquel Raynal <miquel.raynal@bootlin.com>
> Sent: Thursday, June 27, 2019 9:58 PM
> To: Naga Sureshkumar Relli <nagasureshkumarrelli@gmail.com>
> Cc: Naga Sureshkumar Relli <nagasure@xilinx.com>; robh@kernel.org; martin.lund@keep-it-
> simple.com; richard@nod.at; linux-kernel@vger.kernel.org; Boris Brezillon
> <boris.brezillon@bootlin.com>; linux-mtd@lists.infradead.org; nagasuresh12@gmail.com;
> Michal Simek <michals@xilinx.com>; computersforpeace@gmail.com; dwmw2@infradead.org;
> marek.vasut@gmail.com
> Subject: Re: [LINUX PATCH v12 3/3] mtd: rawnand: arasan: Add support for Arasan NAND
> Flash Controller
>
> Hi Naga,
>
> Naga Sureshkumar Relli <nagasureshkumarrelli@gmail.com> wrote on Tue,
> 18 Jun 2019 22:44:24 -0600:
>
> > On Mon, Jan 28, 2019 at 10:27:39AM +0100, Miquel Raynal wrote:
> > Hi Miquel,
> >
> > > Hi Naga,
> > >
> > > Naga Sureshkumar Relli <nagasure@xilinx.com> wrote on Mon, 28 Jan
> > > 2019
> > > 06:04:53 +0000:
> > >
> > > > Hi Boris & Miquel,
> > > >
> > > > Could you please provide your thoughts on this driver to support HW-ECC?
> > > > As I said previously, there is no way to detect errors beyond N bit.
> > > > I am ok to update the driver based on your inputs.
> > >
> > > We won't support the ECC engine. It simply cannot be used reliably.
> > >
> > > I am working on a generic ECC engine object. It's gonna take a few
> > > months until it gets merged but after that you could update the
> > > controller driver to drop any ECC-related function. Although the ECC
> >
> > Could you please let me know that, when can we expect generic ECC
> > engine update in mtd NAND?
> > Based on that, i will plan to update the ARASAN NAND driver along with
> > your comments mentioned above under this update, as you know there is
> > a limiation in ARASAN NAND controller to detect ECC errors.
> > i am following this series
> > https://patchwork.kernel.org/patch/10838705/
>
> It is gonna take more time than expected. You can stick to the software engines for now.
Ok. I will update the driver accordingly.

Thanks,
Naga Sureshkumar Relli

>

> Thanks,
> Miquèl
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