diff options
| author | David Woodhouse <dwmw2@shinybook.infradead.org> | 2004-11-16 19:02:03 +0000 |
|---|---|---|
| committer | David Woodhouse <dwmw2@shinybook.infradead.org> | 2004-11-16 19:02:03 +0000 |
| commit | c35e6da417f5bfcb65a7eeaf29a1dd035f128ec9 (patch) | |
| tree | 7a7d6aaa460c2212cf95debccfecface310d332f /include | |
| parent | 4d2a6a76d7568cc2b05ceaa63926c8e582804bc1 (diff) | |
MTD: NAND driver updates
- Support 2048-byte HW ECC (from Juha Yrjölä <juha.yrjola@nokia.com>)
- Allow board drivers to provide pattern for bad block scanning
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mtd/nand.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 9453cb58c683..9a19c65abd74 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -5,7 +5,7 @@ * Steven J. Hill <sjhill@realitydiluted.com> * Thomas Gleixner <tglx@linutronix.de> * - * $Id: nand.h,v 1.66 2004/10/02 10:07:08 gleixner Exp $ + * $Id: nand.h,v 1.68 2004/11/12 10:40:37 gleixner Exp $ * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -138,6 +138,8 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_ #define NAND_ECC_HW6_512 4 /* Hardware ECC 8 byte ECC per 512 Byte data */ #define NAND_ECC_HW8_512 6 +/* Hardware ECC 12 byte ECC per 2048 Byte data */ +#define NAND_ECC_HW12_2048 7 /* * Constants for Hardware ECC @@ -253,6 +255,7 @@ struct nand_hw_control { * @scan_bbt: [REPLACEABLE] function to scan bad block table * @eccmode: [BOARDSPECIFIC] mode of ecc, see defines * @eccsize: [INTERN] databytes used per ecc-calculation + * @eccbytes: [INTERN] number of ecc bytes per ecc-calculation step * @eccsteps: [INTERN] number of ecc calculation steps per page * @chip_delay: [BOARDSPECIFIC] chip dependent delay for transfering data from array to read regs (tR) * @chip_lock: [INTERN] spinlock used to protect access to this structure and the chip @@ -277,6 +280,7 @@ struct nand_hw_control { * @bbt: [INTERN] bad block table pointer * @bbt_td: [REPLACEABLE] bad block table descriptor for flash lookup * @bbt_md: [REPLACEABLE] bad block table mirror descriptor + * @badblock_pattern: [REPLACEABLE] bad block scan pattern used for initial bad block scan * @controller: [OPTIONAL] a pointer to a hardware controller structure which is shared among multiple independend devices * @priv: [OPTIONAL] pointer to private chip date */ @@ -307,6 +311,7 @@ struct nand_chip { int (*scan_bbt)(struct mtd_info *mtd); int eccmode; int eccsize; + int eccbytes; int eccsteps; int chip_delay; spinlock_t chip_lock; @@ -330,6 +335,7 @@ struct nand_chip { uint8_t *bbt; struct nand_bbt_descr *bbt_td; struct nand_bbt_descr *bbt_md; + struct nand_bbt_descr *badblock_pattern; struct nand_hw_control *controller; void *priv; }; |