Issue with 'ubi part' ubi_io_read: error -74 (ECC error)

[Heiko Schocher]

Hello Jupiter,

Am 19.05.2020 um 14:06 schrieb Jupiter:
> Thanks Richard for the response.
> 
> On 5/19/20, Richard Weinberger <richard.weinberger at gmail.com> wrote:
>> Neither UBI nor UBIFS care about ECC. The MTD stack does.
>> If you write something in Linux you cannot read back in u-boot a common
>> problem is that u-boot and Linux use different MTD settings (layout,
>> ECC, etc...).
> 
> That is exactly the problem I have, the MTD layout in both Linux and
> u-boot is the same:
> 
> # mtdinfo
> Count of MTD devices:           3
> Present MTD devices:            mtd0, mtd1, mtd2
> Sysfs interface supported:      yes
> 
> Are there any ways or tools in Linux to change MTD settings (most
> likely the ECC or DTB) to the same setting in u-boot? I do have mtd
> and fw_setenv in Linux.

No for U-Boot (as I am aware of). You need to fix the DTS or may if
older U-Boot your code.

May you need to add in your U-Boot DTS gpmi node the property:

fsl,legacy-bch-geometry;

?

see commit:

51cdf83eea - mtd: gpmi: provide the option to use legacy bch geometry

bye,
Heiko
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