Patch serie UBI min I/O size fixes
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Cover letter [U-Boot] [0/6] Patch serie UBI min I/O size fixes
Hi,
Quoted 6 lines · Holger
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.
Quoted 7 lines
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.htmlWithout 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