[U-Boot] [0/6] Patch serie UBI min I/O size fixes

[Holger Brunck]

Hi,

Brunck, Holger wrote:
> This patch serie fixes a problem in the UBI layer. The min I/O size has
> currently a fixed value of 1 for NOR flashes. But for NOR flashes the min I/O
> size has to be equal to the size of the writebuffer of the flash. Therefore the
> mtd layer was enhanced with the writebuffer which was later on used in the ubi
> layer to set the min I/O size.
> 
> This patches fixes problems with flash types with a writebuffersize > 128 Byte
> and is mainly taken from the similar linux patches. See MTD mailing list posts:
> http://lists.infradead.org/pipermail/linux-mtd/2010-December/033460.html
> 
> Without the u-boot patches attaching to a ubi device with a min I/O buffer
> larger than 128 would fail.
> 

with the same changes in the linux kernel we see incompatibilities for the
UBIFS. Due to this fact the patches should be restrained until this problem is
solved.

See:
http://lists.infradead.org/pipermail/linux-mtd/2011-January/033794.html

Best regards
Holger Brunck