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Date:   Thu, 18 Mar 2021 12:07:40 +0800
From:   Shawn Guo <shawnguo@kernel.org>
To:     dillon.minfei@gmail.com
Cc:     robh+dt@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
Subject: Re: [PATCH v2] ARM: dts: imx6ull: fix ubi filesystem mount failed
Message-ID: <20210318040740.GX11246@dragon>
References: <1615995909-6240-1-git-send-email-dillon.minfei@gmail.com>
 <1615995909-6240-2-git-send-email-dillon.minfei@gmail.com>
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On Wed, Mar 17, 2021 at 11:45:09PM +0800, dillon.minfei@gmail.com wrote:
> From: dillon min <dillon.minfei@gmail.com>
> 
> 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@gmail.com>
> Reviewed-by: Fabio Estevam <festevam@gmail.com>
> Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Replaced with this version.

Shawn