NANDs with large page sizes are getting oob ares of 218 and 224 so the eccpos field needs to support these larger areas since BCH ECC correction with 24-bit over 1024 bytes will use 168 bytes of the oob for ECC and is required for current MLC NAND parts circa 2012.

Signed-off-by: Charles Hardin ckhardin@exablox.com

diff --git a/include/linux/mtd/mtd-abi.h b/include/linux/mtd/mtd-abi.h index 1e7a18f..c321d6b 100644 --- a/include/linux/mtd/mtd-abi.h +++ b/include/linux/mtd/mtd-abi.h @@ -116,16 +116,17 @@ struct nand_oobfree { uint32_t length; };

-#define MTD_MAX_OOBFREE_ENTRIES 8 +#define MTD_MAX_OOBFREE_ENTRIES_LARGE 32 +#define MTD_MAX_ECCPOS_ENTRIES_LARGE 448 /* * ECC layout control structure. Exported to userspace for * diagnosis and to allow creation of raw images */ struct nand_ecclayout { uint32_t eccbytes; - uint32_t eccpos[128]; + uint32_t eccpos[MTD_MAX_ECCPOS_ENTRIES_LARGE]; uint32_t oobavail; - struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES]; + struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE]; };

/**