Messages in this thread |  | | | Date | Wed, 11 May 2011 18:33:22 -0700 | | From | Andrew Morton <> | | Subject | Re: Bug in MTD NAND ONFI chipsize detection |
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On Wed, 11 May 2011 11:25:22 -0500 Nitin Garg <nitingarg98@gmail.com> wrote:
> Hi All, > > The nand_flash_detect_onfi function in mtd/nand detects the NAND flash > device size using the ONFI parameters: > chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * mtd->erasesize; > > The lun_count is not taken into consideration due to which we detect > wrong size for Micron MT29F8G08ADADAH4 as it has 2 logical units. > > We should change the chipsize calculation to: > chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * > (uint64_t)le32_to_cpu(p->lun_count) * mtd->erasesize; > > Pls suggest. >
Please send a tested, changelogged patch to fix it. Be sure to cc the relevant maintainer and mailing list.
Thanks.
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