summaryrefslogtreecommitdiff
path: root/include/linux/mtd
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mtd')
-rw-r--r--include/linux/mtd/cfi.h1
-rw-r--r--include/linux/mtd/inftl.h2
-rw-r--r--include/linux/mtd/map.h1
-rw-r--r--include/linux/mtd/mtd.h98
-rw-r--r--include/linux/mtd/nand.h355
-rw-r--r--include/linux/mtd/ndfc.h67
-rw-r--r--include/linux/mtd/nftl.h2
-rw-r--r--include/linux/mtd/onenand.h11
-rw-r--r--include/linux/mtd/onenand_regs.h8
-rw-r--r--include/linux/mtd/partitions.h2
-rw-r--r--include/linux/mtd/physmap.h29
-rw-r--r--include/linux/mtd/xip.h1
12 files changed, 366 insertions, 211 deletions
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 23a568910341..09bfae6938b3 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -7,7 +7,6 @@
#ifndef __MTD_CFI_H__
#define __MTD_CFI_H__
-#include <linux/config.h>
#include <linux/delay.h>
#include <linux/types.h>
#include <linux/interrupt.h>
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index d7eaa40e5ab0..6977780e548f 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -46,7 +46,7 @@ struct INFTLrecord {
unsigned int nb_blocks; /* number of physical blocks */
unsigned int nb_boot_blocks; /* number of blocks used by the bios */
struct erase_info instr;
- struct nand_oobinfo oobinfo;
+ struct nand_ecclayout oobinfo;
};
int INFTL_mount(struct INFTLrecord *s);
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 7dfd6e1fcde7..28d461d862bd 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -5,7 +5,6 @@
#ifndef __LINUX_MTD_MAP_H__
#define __LINUX_MTD_MAP_H__
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/list.h>
#include <linux/string.h>
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index b6f2fdae65c6..9b7a2b525d63 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -13,7 +13,6 @@
#error This is a kernel header. Perhaps include mtd-user.h instead?
#endif
-#include <linux/config.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/uio.h>
@@ -56,18 +55,69 @@ struct mtd_erase_region_info {
u_int32_t numblocks; /* Number of blocks of erasesize in this region */
};
+/*
+ * oob operation modes
+ *
+ * MTD_OOB_PLACE: oob data are placed at the given offset
+ * MTD_OOB_AUTO: oob data are automatically placed at the free areas
+ * which are defined by the ecclayout
+ * MTD_OOB_RAW: mode to read raw data+oob in one chunk. The oob data
+ * is inserted into the data. Thats a raw image of the
+ * flash contents.
+ */
+typedef enum {
+ MTD_OOB_PLACE,
+ MTD_OOB_AUTO,
+ MTD_OOB_RAW,
+} mtd_oob_mode_t;
+
+/**
+ * struct mtd_oob_ops - oob operation operands
+ * @mode: operation mode
+ *
+ * @len: number of bytes to write/read. When a data buffer is given
+ * (datbuf != NULL) this is the number of data bytes. When
+ + no data buffer is available this is the number of oob bytes.
+ *
+ * @retlen: number of bytes written/read. When a data buffer is given
+ * (datbuf != NULL) this is the number of data bytes. When
+ + no data buffer is available this is the number of oob bytes.
+ *
+ * @ooblen: number of oob bytes per page
+ * @ooboffs: offset of oob data in the oob area (only relevant when
+ * mode = MTD_OOB_PLACE)
+ * @datbuf: data buffer - if NULL only oob data are read/written
+ * @oobbuf: oob data buffer
+ */
+struct mtd_oob_ops {
+ mtd_oob_mode_t mode;
+ size_t len;
+ size_t retlen;
+ size_t ooblen;
+ uint32_t ooboffs;
+ uint8_t *datbuf;
+ uint8_t *oobbuf;
+};
+
struct mtd_info {
u_char type;
u_int32_t flags;
u_int32_t size; // Total size of the MTD
- /* "Major" erase size for the device. Naïve users may take this
+ /* "Major" erase size for the device. Naïve users may take this
* to be the only erase size available, or may use the more detailed
* information below if they desire
*/
u_int32_t erasesize;
+ /* Minimal writable flash unit size. In case of NOR flash it is 1 (even
+ * though individual bits can be cleared), in case of NAND flash it is
+ * one NAND page (or half, or one-fourths of it), in case of ECC-ed NOR
+ * it is of ECC block size, etc. It is illegal to have writesize = 0.
+ * Any driver registering a struct mtd_info must ensure a writesize of
+ * 1 or larger.
+ */
+ u_int32_t writesize;
- u_int32_t oobblock; // Size of OOB blocks (e.g. 512)
u_int32_t oobsize; // Amount of OOB data per block (e.g. 16)
u_int32_t ecctype;
u_int32_t eccsize;
@@ -79,7 +129,6 @@ struct mtd_info {
* MTD_PROGRAM_REGIONS flag is set.
* (Maybe we should have an union for those?)
*/
-#define MTD_PROGREGION_SIZE(mtd) (mtd)->oobblock
#define MTD_PROGREGION_CTRLMODE_VALID(mtd) (mtd)->oobsize
#define MTD_PROGREGION_CTRLMODE_INVALID(mtd) (mtd)->ecctype
@@ -87,9 +136,8 @@ struct mtd_info {
char *name;
int index;
- // oobinfo is a nand_oobinfo structure, which can be set by iotcl (MEMSETOOBINFO)
- struct nand_oobinfo oobinfo;
- u_int32_t oobavail; // Number of bytes in OOB area available for fs
+ /* ecc layout structure pointer - read only ! */
+ struct nand_ecclayout *ecclayout;
/* Data for variable erase regions. If numeraseregions is zero,
* it means that the whole device has erasesize as given above.
@@ -112,11 +160,10 @@ struct mtd_info {
int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
- int (*read_ecc) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
- int (*write_ecc) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
-
- int (*read_oob) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
- int (*write_oob) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+ int (*read_oob) (struct mtd_info *mtd, loff_t from,
+ struct mtd_oob_ops *ops);
+ int (*write_oob) (struct mtd_info *mtd, loff_t to,
+ struct mtd_oob_ops *ops);
/*
* Methods to access the protection register area, present in some
@@ -130,17 +177,11 @@ struct mtd_info {
int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
- /* kvec-based read/write methods. We need these especially for NAND flash,
- with its limited number of write cycles per erase.
+ /* kvec-based read/write methods.
NB: The 'count' parameter is the number of _vectors_, each of
which contains an (ofs, len) tuple.
*/
- int (*readv) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from, size_t *retlen);
- int (*readv_ecc) (struct mtd_info *mtd, struct kvec *vecs, unsigned long count, loff_t from,
- size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
- int (*writev_ecc) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to,
- size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
/* Sync */
void (*sync) (struct mtd_info *mtd);
@@ -159,6 +200,9 @@ struct mtd_info {
struct notifier_block reboot_notifier; /* default mode before reboot */
+ /* ECC status information */
+ struct mtd_ecc_stats ecc_stats;
+
void *priv;
struct module *owner;
@@ -192,20 +236,6 @@ int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
unsigned long count, loff_t from, size_t *retlen);
-#define MTD_ERASE(mtd, args...) (*(mtd->erase))(mtd, args)
-#define MTD_POINT(mtd, a,b,c,d) (*(mtd->point))(mtd, a,b,c, (u_char **)(d))
-#define MTD_UNPOINT(mtd, arg) (*(mtd->unpoint))(mtd, (u_char *)arg)
-#define MTD_READ(mtd, args...) (*(mtd->read))(mtd, args)
-#define MTD_WRITE(mtd, args...) (*(mtd->write))(mtd, args)
-#define MTD_READV(mtd, args...) (*(mtd->readv))(mtd, args)
-#define MTD_WRITEV(mtd, args...) (*(mtd->writev))(mtd, args)
-#define MTD_READECC(mtd, args...) (*(mtd->read_ecc))(mtd, args)
-#define MTD_WRITEECC(mtd, args...) (*(mtd->write_ecc))(mtd, args)
-#define MTD_READOOB(mtd, args...) (*(mtd->read_oob))(mtd, args)
-#define MTD_WRITEOOB(mtd, args...) (*(mtd->write_oob))(mtd, args)
-#define MTD_SYNC(mtd) do { if (mtd->sync) (*(mtd->sync))(mtd); } while (0)
-
-
#ifdef CONFIG_MTD_PARTITIONS
void mtd_erase_callback(struct erase_info *instr);
#else
@@ -226,7 +256,7 @@ static inline void mtd_erase_callback(struct erase_info *instr)
#ifdef CONFIG_MTD_DEBUG
#define DEBUG(n, args...) \
- do { \
+ do { \
if (n <= CONFIG_MTD_DEBUG_VERBOSE) \
printk(KERN_INFO args); \
} while(0)
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index da5e67b3fc70..66559272ebcb 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -11,52 +11,15 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
- * Info:
- * Contains standard defines and IDs for NAND flash devices
+ * Info:
+ * 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
- * 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
- * 10-29-2001 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
- * ready/busy line access function
- * 02-26-2002 TG added chip_delay to nand_chip structure to optimize
- * command delay times for different chips
- * 04-28-2002 TG OOB config defines moved from nand.c to avoid duplicate
- * defines in jffs2/wbuf.c
- * 08-07-2002 TG forced bad block location to byte 5 of OOB, even if
- * 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
- * internal / fs-driver buffer
- * support for 6byte/512byte hardware ECC
- * read_ecc, write_ecc extended for different oob-layout
- * oob layout selections: NAND_NONE_OOB, NAND_JFFS2_OOB,
- * NAND_YAFFS_OOB
- * 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
- * update of nand_chip structure description
- * 01-17-2005 dmarlin added extended commands for AG-AND device and added option
- * for BBT_AUTO_REFRESH.
- * 01-20-2005 dmarlin added optional pointer to hardware specific callback for
- * extra error status checks.
+ * Changelog:
+ * See git changelog.
*/
#ifndef __LINUX_MTD_NAND_H
#define __LINUX_MTD_NAND_H
-#include <linux/config.h>
#include <linux/wait.h>
#include <linux/spinlock.h>
#include <linux/mtd/mtd.h>
@@ -67,10 +30,6 @@ extern int nand_scan (struct mtd_info *mtd, int max_chips);
/* Free resources held by the NAND device */
extern void nand_release (struct mtd_info *mtd);
-/* Read raw data from the device without ECC */
-extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen);
-
-
/* The maximum number of NAND chips in an array */
#define NAND_MAX_CHIPS 8
@@ -79,44 +38,45 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
* adjust this accordingly.
*/
#define NAND_MAX_OOBSIZE 64
+#define NAND_MAX_PAGESIZE 2048
/*
* Constants for hardware specific CLE/ALE/NCE function
-*/
+ *
+ * These are bits which can be or'ed to set/clear multiple
+ * bits in one go.
+ */
/* Select the chip by setting nCE to low */
-#define NAND_CTL_SETNCE 1
-/* Deselect the chip by setting nCE to high */
-#define NAND_CTL_CLRNCE 2
+#define NAND_NCE 0x01
/* Select the command latch by setting CLE to high */
-#define NAND_CTL_SETCLE 3
-/* Deselect the command latch by setting CLE to low */
-#define NAND_CTL_CLRCLE 4
+#define NAND_CLE 0x02
/* Select the address latch by setting ALE to high */
-#define NAND_CTL_SETALE 5
-/* Deselect the address latch by setting ALE to low */
-#define NAND_CTL_CLRALE 6
-/* Set write protection by setting WP to high. Not used! */
-#define NAND_CTL_SETWP 7
-/* Clear write protection by setting WP to low. Not used! */
-#define NAND_CTL_CLRWP 8
+#define NAND_ALE 0x04
+
+#define NAND_CTRL_CLE (NAND_NCE | NAND_CLE)
+#define NAND_CTRL_ALE (NAND_NCE | NAND_ALE)
+#define NAND_CTRL_CHANGE 0x80
/*
* Standard NAND flash commands
*/
#define NAND_CMD_READ0 0
#define NAND_CMD_READ1 1
+#define NAND_CMD_RNDOUT 5
#define NAND_CMD_PAGEPROG 0x10
#define NAND_CMD_READOOB 0x50
#define NAND_CMD_ERASE1 0x60
#define NAND_CMD_STATUS 0x70
#define NAND_CMD_STATUS_MULTI 0x71
#define NAND_CMD_SEQIN 0x80
+#define NAND_CMD_RNDIN 0x85
#define NAND_CMD_READID 0x90
#define NAND_CMD_ERASE2 0xd0
#define NAND_CMD_RESET 0xff
/* Extended commands for large page devices */
#define NAND_CMD_READSTART 0x30
+#define NAND_CMD_RNDOUTSTART 0xE0
#define NAND_CMD_CACHEDPROG 0x15
/* Extended commands for AG-AND device */
@@ -138,6 +98,8 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
#define NAND_CMD_STATUS_RESET 0x7f
#define NAND_CMD_STATUS_CLEAR 0xff
+#define NAND_CMD_NONE -1
+
/* Status bits */
#define NAND_STATUS_FAIL 0x01
#define NAND_STATUS_FAIL_N1 0x02
@@ -148,21 +110,12 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
/*
* Constants for ECC_MODES
*/
-
-/* No ECC. Usage is not recommended ! */
-#define NAND_ECC_NONE 0
-/* Software ECC 3 byte ECC per 256 Byte data */
-#define NAND_ECC_SOFT 1
-/* Hardware ECC 3 byte ECC per 256 Byte data */
-#define NAND_ECC_HW3_256 2
-/* Hardware ECC 3 byte ECC per 512 Byte data */
-#define NAND_ECC_HW3_512 3
-/* Hardware ECC 3 byte ECC per 512 Byte data */
-#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
+typedef enum {
+ NAND_ECC_NONE,
+ NAND_ECC_SOFT,
+ NAND_ECC_HW,
+ NAND_ECC_HW_SYNDROME,
+} nand_ecc_modes_t;
/*
* Constants for Hardware ECC
@@ -201,6 +154,10 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
* bits from adjacent blocks from 'leaking' in altering data.
* This happens with the Renesas AG-AND chips, possibly others. */
#define BBT_AUTO_REFRESH 0x00000080
+/* Chip does not require ready check on read. True
+ * for all large page devices, as they do not support
+ * autoincrement.*/
+#define NAND_NO_READRDY 0x00000100
/* Options valid for Samsung large page devices */
#define NAND_SAMSUNG_LP_OPTIONS \
@@ -219,18 +176,12 @@ extern int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_
/* Use a flash based bad block table. This option is passed to the
* default bad block table function. */
#define NAND_USE_FLASH_BBT 0x00010000
-/* The hw ecc generator provides a syndrome instead a ecc value on read
- * This can only work if we have the ecc bytes directly behind the
- * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
-#define NAND_HWECC_SYNDROME 0x00020000
/* This option skips the bbt scan during initialization. */
-#define NAND_SKIP_BBTSCAN 0x00040000
+#define NAND_SKIP_BBTSCAN 0x00020000
/* Options set by nand scan */
-/* Nand scan has allocated oob_buf */
-#define NAND_OOBBUF_ALLOC 0x40000000
-/* Nand scan has allocated data_buf */
-#define NAND_DATABUF_ALLOC 0x80000000
+/* Nand scan has allocated controller struct */
+#define NAND_CONTROLLER_ALLOC 0x80000000
/*
@@ -264,45 +215,102 @@ struct nand_hw_control {
};
/**
+ * struct nand_ecc_ctrl - Control structure for ecc
+ * @mode: ecc mode
+ * @steps: number of ecc steps per page
+ * @size: data bytes per ecc step
+ * @bytes: ecc bytes per step
+ * @total: total number of ecc bytes per page
+ * @prepad: padding information for syndrome based ecc generators
+ * @postpad: padding information for syndrome based ecc generators
+ * @hwctl: function to control hardware ecc generator. Must only
+ * be provided if an hardware ECC is available
+ * @calculate: function for ecc calculation or readback from ecc hardware
+ * @correct: function for ecc correction, matching to ecc generator (sw/hw)
+ * @read_page: function to read a page according to the ecc generator requirements
+ * @write_page: function to write a page according to the ecc generator requirements
+ */
+struct nand_ecc_ctrl {
+ nand_ecc_modes_t mode;
+ int steps;
+ int size;
+ int bytes;
+ int total;
+ int prepad;
+ int postpad;
+ struct nand_ecclayout *layout;
+ void (*hwctl)(struct mtd_info *mtd, int mode);
+ int (*calculate)(struct mtd_info *mtd,
+ const uint8_t *dat,
+ uint8_t *ecc_code);
+ int (*correct)(struct mtd_info *mtd, uint8_t *dat,
+ uint8_t *read_ecc,
+ uint8_t *calc_ecc);
+ int (*read_page)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ uint8_t *buf);
+ void (*write_page)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ const uint8_t *buf);
+ int (*read_oob)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ int page,
+ int sndcmd);
+ int (*write_oob)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ int page);
+};
+
+/**
+ * struct nand_buffers - buffer structure for read/write
+ * @ecccalc: buffer for calculated ecc
+ * @ecccode: buffer for ecc read from flash
+ * @oobwbuf: buffer for write oob data
+ * @databuf: buffer for data - dynamically sized
+ * @oobrbuf: buffer to read oob data
+ *
+ * Do not change the order of buffers. databuf and oobrbuf must be in
+ * consecutive order.
+ */
+struct nand_buffers {
+ uint8_t ecccalc[NAND_MAX_OOBSIZE];
+ uint8_t ecccode[NAND_MAX_OOBSIZE];
+ uint8_t oobwbuf[NAND_MAX_OOBSIZE];
+ uint8_t databuf[NAND_MAX_PAGESIZE];
+ uint8_t oobrbuf[NAND_MAX_OOBSIZE];
+};
+
+/**
* struct nand_chip - NAND Private Flash Chip Data
* @IO_ADDR_R: [BOARDSPECIFIC] address to read the 8 I/O lines of the flash device
* @IO_ADDR_W: [BOARDSPECIFIC] address to write the 8 I/O lines of the flash device
* @read_byte: [REPLACEABLE] read one byte from the chip
- * @write_byte: [REPLACEABLE] write one byte to the chip
* @read_word: [REPLACEABLE] read one word from the chip
- * @write_word: [REPLACEABLE] write one word to the chip
* @write_buf: [REPLACEABLE] write data from the buffer to the chip
* @read_buf: [REPLACEABLE] read data from the chip into the buffer
* @verify_buf: [REPLACEABLE] verify buffer contents against the chip data
* @select_chip: [REPLACEABLE] select chip nr
* @block_bad: [REPLACEABLE] check, if the block is bad
* @block_markbad: [REPLACEABLE] mark the block bad
- * @hwcontrol: [BOARDSPECIFIC] hardwarespecific function for accesing control-lines
+ * @cmd_ctrl: [BOARDSPECIFIC] hardwarespecific funtion for controlling
+ * ALE/CLE/nCE. Also used to write command and address
* @dev_ready: [BOARDSPECIFIC] hardwarespecific function for accesing device ready/busy line
* If set to NULL no access to ready/busy is available and the ready/busy information
* 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
- * @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
+ * @ecc: [BOARDSPECIFIC] ecc control ctructure
* @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
- * @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
* @chip_shift: [INTERN] number of address bits in one chip
- * @data_buf: [INTERN] internal buffer for one page + oob
- * @oob_buf: [INTERN] oob buffer for one eraseblock
+ * @datbuf: [INTERN] internal buffer for one page + oob
+ * @oobbuf: [INTERN] oob buffer for one eraseblock
* @oobdirty: [INTERN] indicates that oob_buf must be reinitialized
* @data_poi: [INTERN] pointer to a data buffer
* @options: [BOARDSPECIFIC] various chip options. They can partly be set to inform nand_scan about
@@ -312,12 +320,13 @@ struct nand_hw_control {
* @chipsize: [INTERN] the size of one chip for multichip arrays
* @pagemask: [INTERN] page number mask = number of (pages / chip) - 1
* @pagebuf: [INTERN] holds the pagenumber which is currently in data_buf
- * @autooob: [REPLACEABLE] the default (auto)placement scheme
+ * @ecclayout: [REPLACEABLE] the default ecc placement scheme
* @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
+ * @controller: [REPLACEABLE] a pointer to a hardware controller structure
+ * which is shared among multiple independend devices
* @priv: [OPTIONAL] pointer to private chip date
* @errstat: [OPTIONAL] hardware specific function to perform additional error status checks
* (determine if errors are correctable)
@@ -325,58 +334,57 @@ struct nand_hw_control {
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);
+ uint8_t (*read_byte)(struct mtd_info *mtd);
u16 (*read_word)(struct mtd_info *mtd);
- void (*write_word)(struct mtd_info *mtd, u16 word);
-
- void (*write_buf)(struct mtd_info *mtd, const u_char *buf, int len);
- void (*read_buf)(struct mtd_info *mtd, u_char *buf, int len);
- int (*verify_buf)(struct mtd_info *mtd, const u_char *buf, int len);
+ void (*write_buf)(struct mtd_info *mtd, const uint8_t *buf, int len);
+ void (*read_buf)(struct mtd_info *mtd, uint8_t *buf, int len);
+ int (*verify_buf)(struct mtd_info *mtd, const uint8_t *buf, int len);
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);
- 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);
- void (*enable_hwecc)(struct mtd_info *mtd, int mode);
+ void (*cmd_ctrl)(struct mtd_info *mtd, int dat,
+ unsigned int ctrl);
+ 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);
void (*erase_cmd)(struct mtd_info *mtd, int page);
int (*scan_bbt)(struct mtd_info *mtd);
- int eccmode;
- int eccsize;
- int eccbytes;
- int eccsteps;
- int chip_delay;
- spinlock_t chip_lock;
- wait_queue_head_t wq;
- nand_state_t state;
- int page_shift;
+ int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page);
+
+ int chip_delay;
+ unsigned int options;
+
+ int page_shift;
int phys_erase_shift;
int bbt_erase_shift;
int chip_shift;
- u_char *data_buf;
- u_char *oob_buf;
- int oobdirty;
- u_char *data_poi;
- unsigned int options;
- int badblockpos;
int numchips;
unsigned long chipsize;
int pagemask;
int pagebuf;
- struct nand_oobinfo *autooob;
+ int badblockpos;
+
+ nand_state_t state;
+
+ uint8_t *oob_poi;
+ struct nand_hw_control *controller;
+ struct nand_ecclayout *ecclayout;
+
+ struct nand_ecc_ctrl ecc;
+ struct nand_buffers buffers;
+ struct nand_hw_control hwcontrol;
+
+ struct mtd_oob_ops ops;
+
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;
- int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page);
};
/*
@@ -388,19 +396,19 @@ struct nand_chip {
#define NAND_MFR_NATIONAL 0x8f
#define NAND_MFR_RENESAS 0x07
#define NAND_MFR_STMICRO 0x20
-#define NAND_MFR_HYNIX 0xad
+#define NAND_MFR_HYNIX 0xad
/**
* 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 {
@@ -415,7 +423,7 @@ 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;
@@ -455,7 +463,7 @@ struct nand_bbt_descr {
int veroffs;
uint8_t version[NAND_MAX_CHIPS];
int len;
- int maxblocks;
+ int maxblocks;
int reserved_block_code;
uint8_t *pattern;
};
@@ -494,14 +502,14 @@ struct nand_bbt_descr {
/* The maximum number of blocks to scan for a bbt */
#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);
-extern int nand_default_bbt (struct mtd_info *mtd);
-extern int nand_isbad_bbt (struct mtd_info *mtd, loff_t offs, int allowbbt);
-extern int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt);
-extern int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t * retlen, u_char * buf, u_char * oob_buf,
- struct nand_oobinfo *oobsel, int flags);
+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);
+extern int nand_default_bbt(struct mtd_info *mtd);
+extern int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt);
+extern int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
+ int allowbbt);
+extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t * retlen, uint8_t * buf);
/*
* Constants for oob configuration
@@ -509,4 +517,53 @@ extern int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
#define NAND_SMALL_BADBLOCK_POS 5
#define NAND_LARGE_BADBLOCK_POS 0
+/**
+ * struct platform_nand_chip - chip level device structure
+ *
+ * @nr_chips: max. number of chips to scan for
+ * @chip_offs: chip number offset
+ * @nr_partitions: number of partitions pointed to by partitions (or zero)
+ * @partitions: mtd partition list
+ * @chip_delay: R/B delay value in us
+ * @options: Option flags, e.g. 16bit buswidth
+ * @ecclayout: ecc layout info structure
+ * @priv: hardware controller specific settings
+ */
+struct platform_nand_chip {
+ int nr_chips;
+ int chip_offset;
+ int nr_partitions;
+ struct mtd_partition *partitions;
+ struct nand_ecclayout *ecclayout;
+ int chip_delay;
+ unsigned int options;
+ void *priv;
+};
+
+/**
+ * struct platform_nand_ctrl - controller level device structure
+ *
+ * @hwcontrol: platform specific hardware control structure
+ * @dev_ready: platform specific function to read ready/busy pin
+ * @select_chip: platform specific chip select function
+ * @priv_data: private data to transport driver specific settings
+ *
+ * All fields are optional and depend on the hardware driver requirements
+ */
+struct platform_nand_ctrl {
+ void (*hwcontrol)(struct mtd_info *mtd, int cmd);
+ int (*dev_ready)(struct mtd_info *mtd);
+ void (*select_chip)(struct mtd_info *mtd, int chip);
+ void *priv;
+};
+
+/* Some helpers to access the data structures */
+static inline
+struct platform_nand_chip *get_platform_nandchip(struct mtd_info *mtd)
+{
+ struct nand_chip *chip = mtd->priv;
+
+ return chip->priv;
+}
+
#endif /* __LINUX_MTD_NAND_H */
diff --git a/include/linux/mtd/ndfc.h b/include/linux/mtd/ndfc.h
new file mode 100644
index 000000000000..d0558a982628
--- /dev/null
+++ b/include/linux/mtd/ndfc.h
@@ -0,0 +1,67 @@
+/*
+ * linux/include/linux/mtd/ndfc.h
+ *
+ * Copyright (c) 2006 Thomas Gleixner <tglx@linutronix.de>
+ *
+ * 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
+ * published by the Free Software Foundation.
+ *
+ * Info:
+ * Contains defines, datastructures for ndfc nand controller
+ *
+ */
+#ifndef __LINUX_MTD_NDFC_H
+#define __LINUX_MTD_NDFC_H
+
+/* NDFC Register definitions */
+#define NDFC_CMD 0x00
+#define NDFC_ALE 0x04
+#define NDFC_DATA 0x08
+#define NDFC_ECC 0x10
+#define NDFC_BCFG0 0x30
+#define NDFC_BCFG1 0x34
+#define NDFC_BCFG2 0x38
+#define NDFC_BCFG3 0x3c
+#define NDFC_CCR 0x40
+#define NDFC_STAT 0x44
+#define NDFC_HWCTL 0x48
+#define NDFC_REVID 0x50
+
+#define NDFC_STAT_IS_READY 0x01000000
+
+#define NDFC_CCR_RESET_CE 0x80000000 /* CE Reset */
+#define NDFC_CCR_RESET_ECC 0x40000000 /* ECC Reset */
+#define NDFC_CCR_RIE 0x20000000 /* Interrupt Enable on Device Rdy */
+#define NDFC_CCR_REN 0x10000000 /* Enable wait for Rdy in LinearR */
+#define NDFC_CCR_ROMEN 0x08000000 /* Enable ROM In LinearR */
+#define NDFC_CCR_ARE 0x04000000 /* Auto-Read Enable */
+#define NDFC_CCR_BS(x) (((x) & 0x3) << 24) /* Select Bank on CE[x] */
+#define NDFC_CCR_BS_MASK 0x03000000 /* Select Bank */
+#define NDFC_CCR_ARAC0 0x00000000 /* 3 Addr, 1 Col 2 Row 512b page */
+#define NDFC_CCR_ARAC1 0x00001000 /* 4 Addr, 1 Col 3 Row 512b page */
+#define NDFC_CCR_ARAC2 0x00002000 /* 4 Addr, 2 Col 2 Row 2K page */
+#define NDFC_CCR_ARAC3 0x00003000 /* 5 Addr, 2 Col 3 Row 2K page */
+#define NDFC_CCR_ARAC_MASK 0x00003000 /* Auto-Read mode Addr Cycles */
+#define NDFC_CCR_RPG 0x0000C000 /* Auto-Read Page */
+#define NDFC_CCR_EBCC 0x00000004 /* EBC Configuration Completed */
+#define NDFC_CCR_DHC 0x00000002 /* Direct Hardware Control Enable */
+
+#define NDFC_BxCFG_EN 0x80000000 /* Bank Enable */
+#define NDFC_BxCFG_CED 0x40000000 /* nCE Style */
+#define NDFC_BxCFG_SZ_MASK 0x08000000 /* Bank Size */
+#define NDFC_BxCFG_SZ_8BIT 0x00000000 /* 8bit */
+#define NDFC_BxCFG_SZ_16BIT 0x08000000 /* 16bit */
+
+#define NDFC_MAX_BANKS 4
+
+struct ndfc_controller_settings {
+ uint32_t ccr_settings;
+ uint64_t ndfc_erpn;
+};
+
+struct ndfc_chip_settings {
+ uint32_t bank_settings;
+};
+
+#endif
diff --git a/include/linux/mtd/nftl.h b/include/linux/mtd/nftl.h
index d35d2c21ff3e..bcf2fb3fa4a7 100644
--- a/include/linux/mtd/nftl.h
+++ b/include/linux/mtd/nftl.h
@@ -37,7 +37,7 @@ struct NFTLrecord {
unsigned int nb_blocks; /* number of physical blocks */
unsigned int nb_boot_blocks; /* number of blocks used by the bios */
struct erase_info instr;
- struct nand_oobinfo oobinfo;
+ struct nand_ecclayout oobinfo;
};
int NFTL_mount(struct NFTLrecord *s);
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 7419b5fab133..9ce9a48db444 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -35,6 +35,8 @@ typedef enum {
FL_SYNCING,
FL_UNLOCKING,
FL_LOCKING,
+ FL_RESETING,
+ FL_OTPING,
FL_PM_SUSPENDED,
} onenand_state_t;
@@ -75,7 +77,7 @@ struct onenand_bufferram {
* @param chip_lock [INTERN] spinlock used to protect access to this structure and the chip
* @param wq [INTERN] wait queue to sleep on if a OneNAND operation is in progress
* @param state [INTERN] the current state of the OneNAND device
- * @param autooob [REPLACEABLE] the default (auto)placement scheme
+ * @param ecclayout [REPLACEABLE] the default ecc placement scheme
* @param bbm [REPLACEABLE] pointer to Bad Block Management
* @param priv [OPTIONAL] pointer to private chip date
*/
@@ -111,9 +113,9 @@ struct onenand_chip {
onenand_state_t state;
unsigned char *page_buf;
- struct nand_oobinfo *autooob;
+ struct nand_ecclayout *ecclayout;
- void *bbm;
+ void *bbm;
void *priv;
};
@@ -130,6 +132,9 @@ struct onenand_chip {
#define ONENAND_SET_SYS_CFG1(v, this) \
(this->write_word(v, this->base + ONENAND_REG_SYS_CFG1))
+/* Check byte access in OneNAND */
+#define ONENAND_CHECK_BYTE_ACCESS(addr) (addr & 0x1)
+
/*
* Options bits
*/
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index d7832ef8ed63..4a72818d2545 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -112,6 +112,7 @@
#define ONENAND_CMD_LOCK_TIGHT (0x2C)
#define ONENAND_CMD_ERASE (0x94)
#define ONENAND_CMD_RESET (0xF0)
+#define ONENAND_CMD_OTP_ACCESS (0x65)
#define ONENAND_CMD_READID (0x90)
/* NOTE: Those are not *REAL* commands */
@@ -152,6 +153,8 @@
#define ONENAND_CTRL_ERASE (1 << 11)
#define ONENAND_CTRL_ERROR (1 << 10)
#define ONENAND_CTRL_RSTB (1 << 7)
+#define ONENAND_CTRL_OTP_L (1 << 6)
+#define ONENAND_CTRL_OTP_BL (1 << 5)
/*
* Interrupt Status Register F241h (R)
@@ -177,4 +180,9 @@
#define ONENAND_ECC_2BIT (1 << 1)
#define ONENAND_ECC_2BIT_ALL (0xAAAA)
+/*
+ * One-Time Programmable (OTP)
+ */
+#define ONENAND_OTP_LOCK_OFFSET (14)
+
#endif /* __ONENAND_REG_H */
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index b03f512d51b9..da6b3d6f12a7 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -41,7 +41,7 @@ struct mtd_partition {
u_int32_t size; /* partition size */
u_int32_t offset; /* offset within the master MTD space */
u_int32_t mask_flags; /* master MTD flags to mask out for this partition */
- struct nand_oobinfo *oobsel; /* out of band layout for this partition (NAND only)*/
+ struct nand_ecclayout *ecclayout; /* out of band layout for this partition (NAND only)*/
struct mtd_info **mtdp; /* pointer to store the MTD object */
};
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index c7b8bcdef013..86831e3594f6 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -15,33 +15,26 @@
*/
#ifndef __LINUX_MTD_PHYSMAP__
-
-#include <linux/config.h>
-
-#if defined(CONFIG_MTD_PHYSMAP)
+#define __LINUX_MTD_PHYSMAP__
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
-/*
- * The map_info for physmap. Board can override size, buswidth, phys,
- * (*set_vpp)(), etc in their initial setup routine.
- */
-extern struct map_info physmap_map;
+struct physmap_flash_data {
+ unsigned int width;
+ void (*set_vpp)(struct map_info *, int);
+ unsigned int nr_parts;
+ struct mtd_partition *parts;
+};
/*
* Board needs to specify the exact mapping during their setup time.
*/
-static inline void physmap_configure(unsigned long addr, unsigned long size, int bankwidth, void (*set_vpp)(struct map_info *, int) )
-{
- physmap_map.phys = addr;
- physmap_map.size = size;
- physmap_map.bankwidth = bankwidth;
- physmap_map.set_vpp = set_vpp;
-}
+void physmap_configure(unsigned long addr, unsigned long size,
+ int bankwidth, void (*set_vpp)(struct map_info *, int) );
-#if defined(CONFIG_MTD_PARTITIONS)
+#ifdef CONFIG_MTD_PARTITIONS
/*
* Machines that wish to do flash partition may want to call this function in
@@ -55,7 +48,5 @@ static inline void physmap_configure(unsigned long addr, unsigned long size, int
void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
#endif /* defined(CONFIG_MTD_PARTITIONS) */
-#endif /* defined(CONFIG_MTD) */
#endif /* __LINUX_MTD_PHYSMAP__ */
-
diff --git a/include/linux/mtd/xip.h b/include/linux/mtd/xip.h
index 220d50bb71cd..e9d40bdde48c 100644
--- a/include/linux/mtd/xip.h
+++ b/include/linux/mtd/xip.h
@@ -18,7 +18,6 @@
#ifndef __LINUX_MTD_XIP_H__
#define __LINUX_MTD_XIP_H__
-#include <linux/config.h>
#ifdef CONFIG_MTD_XIP
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 19:24:43 +0300