RE: [LINUX PATCH v12 3/3] mtd: rawnand: arasan: Add support for Arasan NAND Flash Controller

Naga Sureshkumar Relli
2019-01-28T09:35:58Z

Hi Miquel,

> -----Original Message-----
> From: Miquel Raynal [mailto:miquel.raynal@bootlin.com]
> Sent: Monday, January 28, 2019 2:58 PM
> To: Naga Sureshkumar Relli <nagasure@xilinx.com>
> Cc: robh@kernel.org; marek.vasut@gmail.com; richard@nod.at; martin.lund@keep-it-
> simple.com; 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
> Subject: Re: [LINUX PATCH v12 3/3] mtd: rawnand: arasan: Add support for Arasan
> NAND Flash Controller
>
> 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 engine part is blocking, raw access still look wrong and the
> driver still needs changes.

Thank you for the update.
Yes, currently ECC engine part is blocking.
Also whenever you have time, please provide your comments to the driver v12 patch.
I will update those.

Thanks,
Naga Sureshkumar Relli
>
>
> Thanks,
> Miquèl