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

Miquel Raynal
2019-06-27T16:27:53Z

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.

Thanks,
Miquèl