linux-kernel - [PATCH] ARM: dts: imx6ull: fix ubi mount failed on MYS-6ULX-IOT board

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Date:   Tue,  9 Mar 2021 14:15:19 +0800
From:   dillon.minfei@...il.com
To:     robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de,
        parthiban@...umiz.com, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     dillon min <dillon.minfei@...il.com>
Subject: [PATCH] ARM: dts: imx6ull: fix ubi mount failed on MYS-6ULX-IOT board  

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

This patch intend to fix ubi filesystem mount failed on MYS-6ULX-IOT board,
from Micron MT29F2G08ABAEAWP's datasheets, we need to choose 4-bit ECC.

Table 18: Error Management Details

Description					Requirement

Minimum number of valid blocks (NVB) per LUN	2008
Total available blocks per LUN			2048
First spare area location			x8: byte 2048 x16: word 1024
Bad-block mark					x8: 00h x16: 0000h
Minimum required ECC				4-bit ECC per 528 bytes
Minimum ECC with internal ECC enabled		4-bit ECC per 516 bytes (user data) + 8
						bytes (parity data)
Minimum required ECC for block 0 if PROGRAM/
ERASE cycles are less than 1000			1-bit ECC per 528 bytes

dillon min (1):
  ARM: dts: imx6ull: fix ubi filesystem mount failed

 arch/arm/boot/dts/imx6ull-myir-mys-6ulx-eval.dts | 1 +
 1 file changed, 1 insertion(+)

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2.7.4