linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: dillon.minfei@gmail.com
To: robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de,
	parthiban@linumiz.com, kernel@pengutronix.de, festevam@gmail.com,
	linux-imx@nxp.com, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: dillon min <dillon.minfei@gmail.com>
Subject: [PATCH] ARM: dts: imx6ull: fix ubi filesystem mount failed
Date: Tue,  9 Mar 2021 14:15:20 +0800	[thread overview]
Message-ID: <1615270520-16951-2-git-send-email-dillon.minfei@gmail.com> (raw)
In-Reply-To: <1615270520-16951-1-git-send-email-dillon.minfei@gmail.com>

From: dillon min <dillon.minfei@gmail.com>

since Micron MT29F2G08ABAEAWP's ecc error management:

|Description           			| Requirement
|Minimum required ECC  			| 4-bit ECC per 528 bytes
|Minimum ECC with internal ECC enabled  | 4-bit ECC per 516 bytes (user data) +
                                         8bytes (parity data)

to avoid unnecessary overheads related to bigger ecc calculations.
need choose to use fsl,use-minimum-ecc, else will run into ecc error.

[    9.449265] ubi0: scanning is finished
[    9.463968] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.486940] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.509906] ubi0 warning: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read only 22528 bytes, retry
[    9.532845] ubi0 error: ubi_io_read: error -74 (ECC error) while reading
22528 bytes from PEB 513:4096, read 22528 bytes

Fixes: f9ecf10cb88c ("ARM: dts: imx6ull: add MYiR MYS-6ULX SBC")
Signed-off-by: dillon min <dillon.minfei@gmail.com>
---
 arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts b/arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts
index ecbb2cc5b9ab..79cc45728cd2 100644
--- a/arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts
+++ b/arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts
@@ -14,5 +14,6 @@
 };
 
 &gpmi {
+	fsl,use-minimum-ecc;
 	status = "okay";
 };
-- 
2.7.4


  reply	other threads:[~2021-03-09  6:16 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-09  6:15 [PATCH] ARM: dts: imx6ull: fix ubi mount failed on MYS-6ULX-IOT board dillon.minfei
2021-03-09  6:15 ` dillon.minfei [this message]
2021-03-09 12:01   ` [PATCH] ARM: dts: imx6ull: fix ubi filesystem mount failed Fabio Estevam
2021-03-17 13:00   ` Shawn Guo
2021-03-09 12:18 ` [PATCH] ARM: dts: imx6ull: fix ubi mount failed on MYS-6ULX-IOT board Sascha Hauer
2021-03-10  2:54   ` dillon min
2021-03-17 14:10     ` Sascha Hauer

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=1615270520-16951-2-git-send-email-dillon.minfei@gmail.com \
    --to=dillon.minfei@gmail.com \
    --cc=devicetree@vger.kernel.org \
    --cc=festevam@gmail.com \
    --cc=kernel@pengutronix.de \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-imx@nxp.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=parthiban@linumiz.com \
    --cc=robh+dt@kernel.org \
    --cc=s.hauer@pengutronix.de \
    --cc=shawnguo@kernel.org \
    /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).