linux-kernel - RE: [LINUX PATCH v17 2/2] mtd: rawnand: pl353: Add basic driver for arm pl353 smc nand interface

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Date:   Wed, 3 Jul 2019 06:13:47 +0000
From:   Naga Sureshkumar Relli <nagasure@...inx.com>
To:     Helmut Grohne <helmut.grohne@...enta.de>,
        Miquel Raynal <miquel.raynal@...tlin.com>
CC:     "vigneshr@...com" <vigneshr@...com>,
        "bbrezillon@...nel.org" <bbrezillon@...nel.org>,
        "yamada.masahiro@...ionext.com" <yamada.masahiro@...ionext.com>,
        "richard@....at" <richard@....at>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "marek.vasut@...il.com" <marek.vasut@...il.com>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "computersforpeace@...il.com" <computersforpeace@...il.com>,
        "dwmw2@...radead.org" <dwmw2@...radead.org>
Subject: RE: [LINUX PATCH v17 2/2] mtd: rawnand: pl353: Add basic driver for
 arm pl353 smc nand interface

Hi Miquel,

> -----Original Message-----
> From: linux-mtd <linux-mtd-bounces@...ts.infradead.org> On Behalf Of Helmut Grohne
> Sent: Tuesday, June 25, 2019 7:41 PM
> To: Naga Sureshkumar Relli <nagasure@...inx.com>
> Cc: vigneshr@...com; bbrezillon@...nel.org; yamada.masahiro@...ionext.com;
> richard@....at; linux-kernel@...r.kernel.org; marek.vasut@...il.com; linux-
> mtd@...ts.infradead.org; miquel.raynal@...tlin.com; computersforpeace@...il.com;
> dwmw2@...radead.org
> Subject: Re: [LINUX PATCH v17 2/2] mtd: rawnand: pl353: Add basic driver for arm pl353
> smc nand interface
> 
> Thank you for the quick update.
> 
> On Tue, Jun 25, 2019 at 06:46:30AM +0200, Naga Sureshkumar Relli wrote:
> > -> Tested Micron MT29F2G08ABAEAWP (On-die capable) and AMD/Spansion
> S34ML01G1.
> 
> I tested the v17 series with the MT29F2G08ABAEAWP. I can now mount existing jffs2
> volumes without issues.
> 
> When running nandtest on a 64MB area, I no longer see lots of consecutive errors. However I
> see few (4-8) single byte errors for random locations on about half the runs. In comparison, I
> couldn't reproduce these on the older driver on v4.14.
> 
> When writing random 1MB files on a fresh jffs2 filesystem and reading them back after
> umounting and mounting the filesystem, I got one faulty file in 50 attempts.
> 
> So this driver mostly works for me, but I suspect that something (possibly the tested
> hardware) doesn't fully work yet. To say more, I'll need long term testing results. In the mean
> time, I'm in favour of merging the driver.
What is your take on this?
Can we consider to merge this driver?
Could you please let me know?

Thanks,
Naga Sureshkumar Relli
> 
> Helmut
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

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