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mtd: nand: fix the wrong mtd->type for nand chip
Current code sets the mtd->type with MTD_NANDFLASH for both SLC and MLC. So the jffs2 may supports the MLC nand, but in actually, the jffs2 should not support the MLC. This patch uses the nand_is_slc() to check the nand cell type, and set the mtd->type with the right nand type. After this patch, the jffs2 only supports the SLC nand. The side-effect of this patch: Before this patch, the ioctl(MEMGETINFO) can only return with the MTD_NANDFLASH; but after this patch, the ioctl(MEMGETINFO) will return with the MTD_NANDFLASH for SLC, and MTD_MLCNANDFLASH for MLC. So the user applictions(such as mtd-utils) should also changes a little for this. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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@ -3785,7 +3785,7 @@ int nand_scan_tail(struct mtd_info *mtd)
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chip->options |= NAND_SUBPAGE_READ;
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/* Fill in remaining MTD driver data */
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mtd->type = MTD_NANDFLASH;
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mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH;
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mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM :
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MTD_CAP_NANDFLASH;
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mtd->_erase = nand_erase;
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