On Fri, 17 Jun 2011 16:54:27 -0400 "Matthew L. Creech" <mlcre...@gmail.com> wrote:
> Hi, I posted this on the Linux-MTD list but haven't gotten any hits. > Since it looks like it could be MPC83xx-specific, I'm reposting here. > Rick Johnson noted a problem in fsl_elbc_nand.c back in May which > might be related: > > http://lists.infradead.org/pipermail/linux-mtd/2011-May/035372.html It seems that the generic code always passes -1 with PAGEPROG, and only provides the actual page address on SEQIN. I don't think the ECC readback is needed, and the fact that it looks like it has always been broken would seem to confirm that. It's broken in other ways, too -- it assumes a particular ECC layout. Let's get rid of it. As for the corruption, could it be degradation from repeated reads of that one page? > More info on this board: > - MPC 8313 SoC > - 1GB Samsung NAND flash (K9K8G08U0B) > - Linux 2.6.31 > - U-Boot 2009.06 Hmm, 2.6.31... it's probably not related to this problem, but you should cherry pick b3a70f0bc32d1b70584bcaa6019fa4260b0da92e and 476459a6cf46d20ec73d9b211f3894ced5f9871e. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
