linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Daniel Palmer <daniel@0x0f.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: linux-mtd@lists.infradead.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] mtd: spinand: add support for Foresee FS35ND01G-S1Y2
Date: Tue, 23 Mar 2021 20:47:10 +0900	[thread overview]
Message-ID: <CAFr9PX=KMZuzp61Hq=2WdHyEzE=6J7HEPWZxPs7FEqiH-G8wFw@mail.gmail.com> (raw)
In-Reply-To: <20210323113233.3523d66b@xps13>

Hi Miquel,

On Tue, 23 Mar 2021 at 19:32, Miquel Raynal <miquel.raynal@bootlin.com> wrote:
> You can run nandbiterrs -i /dev/mtdX
>
> You'll see if there is ECC correction or not (and its level).

These are results I get for both of the nandbiterrs tests.

# nandbiterrs -i /dev/mtd1
incremental biterrors test
Successfully corrected 0 bit errors per subpage
Inserted biterror @ 0/5
Read reported 4 corrected bit errors
ECC failure, invalid data despite read success

# nandbiterrs -o /dev/mtd1
overwrite biterrors test
Read reported 4 corrected bit errors
Failed to recover 1 bitflips
Bit error histogram (883 operations total):
Page reads with   0 corrected bit errors: 845
Page reads with   1 corrected bit errors: 0
Page reads with   2 corrected bit errors: 0
Page reads with   3 corrected bit errors: 0

I guess this means ECC is there and it's working.

Thanks,

Daniel

  reply	other threads:[~2021-03-23 11:47 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-13  9:57 [PATCH v2] mtd: spinand: add support for Foresee FS35ND01G-S1Y2 Daniel Palmer
2021-02-15 10:24 ` Miquel Raynal
2021-02-15 10:53   ` Daniel Palmer
2021-02-15 11:16     ` Miquel Raynal
2021-02-15 11:34       ` Daniel Palmer
2021-03-22 12:44       ` Daniel Palmer
2021-03-22 18:32         ` Miquel Raynal
2021-03-23  9:33           ` Daniel Palmer
2021-03-23 10:32             ` Miquel Raynal
2021-03-23 11:47               ` Daniel Palmer [this message]
2021-03-23 14:06                 ` Miquel Raynal
2021-03-23 14:14                   ` Daniel Palmer
2021-03-26 14:09                   ` Daniel Palmer
2021-04-07  8:02                     ` Miquel Raynal
2021-04-07 12:01                       ` Daniel Palmer
2021-04-08 15:49                         ` Miquel Raynal

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to='CAFr9PX=KMZuzp61Hq=2WdHyEzE=6J7HEPWZxPs7FEqiH-G8wFw@mail.gmail.com' \
    --to=daniel@0x0f.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=miquel.raynal@bootlin.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).