[PATCH 1/1] commands/ubi.c: Add support for VID header offset in ubiattach

[Jan Lübbe]

On Mon, 2013-02-11 at 16:21 +0100, Sascha Hauer wrote:
> I'm interested in this patch once it's clear that this option is needed.
> Right now I think that the work is better invested in making this option
> unneeded. Jan, do you have insights why this is needed?

Linux with current mainline + pending GPMC/ELM patches thinks it
supports sub-page reads/writes on 2k page NAND with BCH8. This is simply
wrong. By using "root=ubi0:root ubi.mtd=nand0.root,2048
rootfstype=ubifs" in the kernel cmdline, you will get this override in
the kernel.

The GMPC NAND driver in barebox correctly does not use sub-page-access
and works fine without overriding the VID header offset.

When building the UBIFS/UBI the offset must obviously be set correctly.

Which kernel & barebox are you using?

Regards,
Jan
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