Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 18 Jun 2019 22:44:24 -0600
From:   Naga Sureshkumar Relli <nagasureshkumarrelli@gmail.com>
To:     Miquel Raynal <miquel.raynal@bootlin.com>
Cc:     Naga Sureshkumar Relli <nagasure@xilinx.com>,
        "robh@kernel.org" <robh@kernel.org>,
        "martin.lund@keep-it-simple.com" <martin.lund@keep-it-simple.com>,
        "richard@nod.at" <richard@nod.at>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Boris Brezillon <boris.brezillon@bootlin.com>,
        "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
        "nagasuresh12@gmail.com" <nagasuresh12@gmail.com>,
        Michal Simek <michals@xilinx.com>,
        "computersforpeace@gmail.com" <computersforpeace@gmail.com>,
        "dwmw2@infradead.org" <dwmw2@infradead.org>,
        "marek.vasut@gmail.com" <marek.vasut@gmail.com>
Subject: Re: [LINUX PATCH v12 3/3] mtd: rawnand: arasan: Add support for
 Arasan NAND Flash Controller
Message-ID: <20190619044424.GB28766@xhdnagasure40.xilinx.com>
References: <20181212100931.149b0cac@xps13>
 <MWHPR02MB2623EDA15BE59304795F3034AFA70@MWHPR02MB2623.namprd02.prod.outlook.com>
 <20181212141825.69711c57@xps13>
 <MWHPR02MB26235AE6567A06EF4C6362E6AFBC0@MWHPR02MB2623.namprd02.prod.outlook.com>
 <20181217174114.24196d17@xps13>
 <MWHPR02MB26237B932D7F3CCEE0476FE0AFBD0@MWHPR02MB2623.namprd02.prod.outlook.com>
 <20181219152647.76f77711@xps13>
 <MWHPR02MB262396FFF946A95D7821D61BAFB80@MWHPR02MB2623.namprd02.prod.outlook.com>
 <MWHPR02MB262328DF62906C01DCDF18E5AF960@MWHPR02MB2623.namprd02.prod.outlook.com>
 <20190128102720.70a52da7@xps13>
MIME-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <20190128102720.70a52da7@xps13>
User-Agent: Mutt/1.9.4 (2018-02-28)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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/

Thanks,
Naga Sureshkumar Relli
> engine part is blocking, raw access still look wrong and the driver
> still needs changes.
> 
> 
> Thanks,
> Miqu?l
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/