linux-kernel - [PATCH 5.10 148/221] ARM: dts: imx6ull: fix ubi filesystem mount failed

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Date:   Mon, 29 Mar 2021 09:57:59 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, dillon min <dillon.minfei@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 148/221] ARM: dts: imx6ull: fix ubi filesystem mount failed

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

[ Upstream commit e4817a1b6b77db538bc0141c3b138f2df803ce87 ]

For NAND Ecc layout, there is a dependency from old kernel's nand driver
setting and current. if old kernel use 4 bit ecc , we should use 4 bit
in new kernel either. else will run into following error at filesystem
mounting.

So, enable fsl,use-minimum-ecc from device tree, to fix this mismatch

[    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@...il.com>
Reviewed-by: Fabio Estevam <festevam@...il.com>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 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";
 };
-- 
2.30.1