From mboxrd@z Thu Jan 1 00:00:00 1970 From: Holger Brunck Date: Thu, 27 Jan 2011 13:13:25 +0100 Subject: [U-Boot] [0/6] Patch serie UBI min I/O size fixes In-Reply-To: <4D41331C.7000302@keymile.com> References: <4D41331C.7000302@keymile.com> Message-ID: <4D416165.3030200@keymile.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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