* linux/include/linux/mtd/nand.h
*
* Copyright (c) 2000 David Woodhouse <dwmw2@mvhi.com>
- * Steven J. Hill <sjhill@realitydiluted.com>
+ * Steven J. Hill <sjhill@realitydiluted.com>
* Thomas Gleixner <tglx@linutronix.de>
*
* $Id: nand.h,v 1.68 2004/11/12 10:40:37 gleixner Exp $
* Contains standard defines and IDs for NAND flash devices
*
* Changelog:
- * 01-31-2000 DMW Created
- * 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers
+ * 01-31-2000 DMW Created
+ * 09-18-2000 SJH Moved structure out of the Disk-On-Chip drivers
* so it can be used by other NAND flash device
* drivers. I also changed the copyright since none
* of the original contents of this file are specific
* to DoC devices. David can whack me with a baseball
* bat later if I did something naughty.
- * 10-11-2000 SJH Added private NAND flash structure for driver
- * 10-24-2000 SJH Added prototype for 'nand_scan' function
+ * 10-11-2000 SJH Added private NAND flash structure for driver
+ * 10-24-2000 SJH Added prototype for 'nand_scan' function
* 10-29-2001 TG changed nand_chip structure to support
* hardwarespecific function for accessing control lines
* 02-21-2002 TG added support for different read/write adress and
* CONFIG_MTD_NAND_ECC_JFFS2 is not set
* 08-10-2002 TG extensions to nand_chip structure to support HW-ECC
*
- * 08-29-2002 tglx nand_chip structure: data_poi for selecting
+ * 08-29-2002 tglx nand_chip structure: data_poi for selecting
* internal / fs-driver buffer
* support for 6byte/512byte hardware ECC
* read_ecc, write_ecc extended for different oob-layout
* 11-25-2002 tglx Added Manufacturer code FUJITSU, NATIONAL
* Split manufacturer and device ID structures
*
- * 02-08-2004 tglx added option field to nand structure for chip anomalities
- * 05-25-2004 tglx added bad block table support, ST-MICRO manufacturer id
+ * 02-08-2004 tglx added option field to nand structure for chip anomalities
+ * 05-25-2004 tglx added bad block table support, ST-MICRO manufacturer id
* update of nand_chip structure description
*/
#ifndef __LINUX_MTD_NAND_H
* Constants for hardware specific CLE/ALE/NCE function
*/
/* Select the chip by setting nCE to low */
-#define NAND_CTL_SETNCE 1
+#define NAND_CTL_SETNCE 1
/* Deselect the chip by setting nCE to high */
#define NAND_CTL_CLRNCE 2
/* Select the command latch by setting CLE to high */
#if 0
/**
* struct nand_hw_control - Control structure for hardware controller (e.g ECC generator) shared among independend devices
- * @lock: protection lock
+ * @lock: protection lock
* @active: the mtd device which holds the controller currently
*/
struct nand_hw_control {
* is read from the chip status register
* @cmdfunc: [REPLACEABLE] hardwarespecific function for writing commands to the chip
* @waitfunc: [REPLACEABLE] hardwarespecific function for wait on ready
- * @calculate_ecc: [REPLACEABLE] function for ecc calculation or readback from ecc hardware
+ * @calculate_ecc: [REPLACEABLE] function for ecc calculation or readback from ecc hardware
* @correct_data: [REPLACEABLE] function for ecc correction, matching to ecc generator (sw/hw)
* @enable_hwecc: [BOARDSPECIFIC] function to enable (reset) hardware ecc generator. Must only
* be provided if a hardware ECC is available
* @erase_cmd: [INTERN] erase command write function, selectable due to AND support
* @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
+ * @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
* @wq: [INTERN] wait queue to sleep on if a NAND operation is in progress
- * @state: [INTERN] the current state of the NAND device
+ * @state: [INTERN] the current state of the NAND device
* @page_shift: [INTERN] number of address bits in a page (column address bits)
* @phys_erase_shift: [INTERN] number of address bits in a physical eraseblock
* @bbt_erase_shift: [INTERN] number of address bits in a bbt entry
struct nand_chip {
void __iomem *IO_ADDR_R;
- void __iomem *IO_ADDR_W;
+ void __iomem *IO_ADDR_W;
u_char (*read_byte)(struct mtd_info *mtd);
void (*write_byte)(struct mtd_info *mtd, u_char byte);
void (*select_chip)(struct mtd_info *mtd, int chip);
int (*block_bad)(struct mtd_info *mtd, loff_t ofs, int getchip);
int (*block_markbad)(struct mtd_info *mtd, loff_t ofs);
- void (*hwcontrol)(struct mtd_info *mtd, int cmd);
- int (*dev_ready)(struct mtd_info *mtd);
- void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr);
- int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this, int state);
+ void (*hwcontrol)(struct mtd_info *mtd, int cmd);
+ int (*dev_ready)(struct mtd_info *mtd);
+ void (*cmdfunc)(struct mtd_info *mtd, unsigned command, int column, int page_addr);
+ int (*waitfunc)(struct mtd_info *mtd, struct nand_chip *this, int state);
int (*calculate_ecc)(struct mtd_info *mtd, const u_char *dat, u_char *ecc_code);
- int (*correct_data)(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
+ int (*correct_data)(struct mtd_info *mtd, u_char *dat, u_char *read_ecc, u_char *calc_ecc);
void (*enable_hwecc)(struct mtd_info *mtd, int mode);
void (*erase_cmd)(struct mtd_info *mtd, int page);
int (*scan_bbt)(struct mtd_info *mtd);
int eccsize;
int eccbytes;
int eccsteps;
- int chip_delay;
+ int chip_delay;
#if 0
spinlock_t chip_lock;
wait_queue_head_t wq;
- nand_state_t state;
+ nand_state_t state;
#endif
- int page_shift;
+ int page_shift;
int phys_erase_shift;
int bbt_erase_shift;
int chip_shift;
- u_char *data_buf;
+ u_char *data_buf;
u_char *oob_buf;
int oobdirty;
u_char *data_poi;
struct nand_bbt_descr *bbt_td;
struct nand_bbt_descr *bbt_md;
struct nand_bbt_descr *badblock_pattern;
- struct nand_hw_control *controller;
+ struct nand_hw_control *controller;
void *priv;
};
/**
* struct nand_flash_dev - NAND Flash Device ID Structure
*
- * @name: Identify the device type
- * @id: device ID code
- * @pagesize: Pagesize in bytes. Either 256 or 512 or 0
+ * @name: Identify the device type
+ * @id: device ID code
+ * @pagesize: Pagesize in bytes. Either 256 or 512 or 0
* If the pagesize is 0, then the real pagesize
* and the eraseize are determined from the
* extended id bytes in the chip
- * @erasesize: Size of an erase block in the flash device.
- * @chipsize: Total chipsize in Mega Bytes
+ * @erasesize: Size of an erase block in the flash device.
+ * @chipsize: Total chipsize in Mega Bytes
* @options: Bitfield to store chip relevant options
*/
struct nand_flash_dev {
/**
* struct nand_manufacturers - NAND Flash Manufacturer ID Structure
* @name: Manufacturer name
- * @id: manufacturer ID code of device.
+ * @id: manufacturer ID code of device.
*/
struct nand_manufacturers {
int id;
* blocks is reserved at the end of the device where the tables are
* written.
* @reserved_block_code: if non-0, this pattern denotes a reserved (rather than
- * bad) block in the stored bbt
+ * bad) block in the stored bbt
* @pattern: pattern to identify bad block table or factory marked good /
* bad blocks, can be NULL, if len = 0
*
int pages[NAND_MAX_CHIPS];
int offs;
int veroffs;
- uint8_t version[NAND_MAX_CHIPS];
+ uint8_t version[NAND_MAX_CHIPS];
int len;
- int maxblocks;
+ int maxblocks;
int reserved_block_code;
- uint8_t *pattern;
+ uint8_t *pattern;
};
/* Options for the bad block table descriptors */
#define NAND_BBT_4BIT 0x00000004
#define NAND_BBT_8BIT 0x00000008
/* The bad block table is in the last good block of the device */
-#define NAND_BBT_LASTBLOCK 0x00000010
+#define NAND_BBT_LASTBLOCK 0x00000010
/* The bbt is at the given page, else we must scan for the bbt */
#define NAND_BBT_ABSPAGE 0x00000020
/* The bbt is at the given page, else we must scan for the bbt */
#define NAND_BBT_SCAN2NDPAGE 0x00004000
/* The maximum number of blocks to scan for a bbt */
-#define NAND_BBT_SCAN_MAXBLOCKS 4
+#define NAND_BBT_SCAN_MAXBLOCKS 4
extern int nand_scan_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd);
extern int nand_update_bbt (struct mtd_info *mtd, loff_t offs);
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