Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6: (199 commits)
  [MTD] NAND: Fix breakage all over the place
  [PATCH] NAND: fix remaining OOB length calculation
  [MTD] NAND Fixup NDFC merge brokeness
  [MTD NAND] S3C2410 driver cleanup
  [MTD NAND] s3c24x0 board: Fix clock handling, ensure proper initialisation.
  [JFFS2] Check CRC32 on dirent and data nodes each time they're read
  [JFFS2] When retiring nextblock, allocate a node_ref for the wasted space
  [JFFS2] Mark XATTR support as experimental, for now
  [JFFS2] Don't trust node headers before the CRC is checked.
  [MTD] Restore MTD_ROM and MTD_RAM types
  [MTD] assume mtd->writesize is 1 for NOR flashes
  [MTD NAND] Fix s3c2410 NAND driver so it at least _looks_ like it compiles
  [MTD] Prepare physmap for 64-bit-resources
  [JFFS2] Fix more breakage caused by janitorial meddling.
  [JFFS2] Remove stray __exit from jffs2_compressors_exit()
  [MTD] Allow alternate JFFS2 mount variant for root filesystem.
  [MTD] Disconnect struct mtd_info from ABI
  [MTD] replace MTD_RAM with MTD_GENERIC_TYPE
  [MTD] replace MTD_ROM with MTD_GENERIC_TYPE
  [MTD] remove a forgotten MTD_XIP
  ...

15 files changed, 482 insertions, 418 deletions

diff --git a/include/linux/jffs2.h b/include/linux/jffs2.h
index cf792bb3c726..c6f70660b371 100644
--- a/include/linux/jffs2.h
+++ b/include/linux/jffs2.h
@@ -65,6 +65,18 @@
 
 #define JFFS2_NODETYPE_SUMMARY (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 6)
 
+#define JFFS2_NODETYPE_XATTR (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 8)
+#define JFFS2_NODETYPE_XREF (JFFS2_FEATURE_INCOMPAT | JFFS2_NODE_ACCURATE | 9)
+
+/* XATTR Related */
+#define JFFS2_XPREFIX_USER              1       /* for "user." */
+#define JFFS2_XPREFIX_SECURITY          2       /* for "security." */
+#define JFFS2_XPREFIX_ACL_ACCESS        3       /* for "system.posix_acl_access" */
+#define JFFS2_XPREFIX_ACL_DEFAULT       4       /* for "system.posix_acl_default" */
+#define JFFS2_XPREFIX_TRUSTED           5       /* for "trusted.*" */
+
+#define JFFS2_ACL_VERSION               0x0001
+
 // Maybe later...
 //#define JFFS2_NODETYPE_CHECKPOINT (JFFS2_FEATURE_RWCOMPAT_DELETE | JFFS2_NODE_ACCURATE | 3)
 //#define JFFS2_NODETYPE_OPTIONS (JFFS2_FEATURE_RWCOMPAT_COPY | JFFS2_NODE_ACCURATE | 4)
@@ -82,11 +94,11 @@
 
 typedef struct {
         uint32_t v32;
-} __attribute__((packed))  jint32_t;
+} __attribute__((packed)) jint32_t;
 
 typedef struct {
         uint32_t m;
-} __attribute__((packed))  jmode_t;
+} __attribute__((packed)) jmode_t;
 
 typedef struct {
         uint16_t v16;
@@ -99,7 +111,7 @@ struct jffs2_unknown_node
         jint16_t nodetype;
         jint32_t totlen; /* So we can skip over nodes we don't grok */
         jint32_t hdr_crc;
-} __attribute__((packed));
+};
 
 struct jffs2_raw_dirent
 {
@@ -117,7 +129,7 @@ struct jffs2_raw_dirent
         jint32_t node_crc;
         jint32_t name_crc;
         uint8_t name[0];
-} __attribute__((packed));
+};
 
 /* The JFFS2 raw inode structure: Used for storage on physical media.  */
 /* The uid, gid, atime, mtime and ctime members could be longer, but
@@ -149,6 +161,32 @@ struct jffs2_raw_inode
         jint32_t data_crc;   /* CRC for the (compressed) data.  */
         jint32_t node_crc;   /* CRC for the raw inode (excluding data)  */
         uint8_t data[0];
+};
+
+struct jffs2_raw_xattr {
+        jint16_t magic;
+        jint16_t nodetype;      /* = JFFS2_NODETYPE_XATTR */
+        jint32_t totlen;
+        jint32_t hdr_crc;
+        jint32_t xid;           /* XATTR identifier number */
+        jint32_t version;
+        uint8_t xprefix;
+        uint8_t name_len;
+        jint16_t value_len;
+        jint32_t data_crc;
+        jint32_t node_crc;
+        uint8_t data[0];
+} __attribute__((packed));
+
+struct jffs2_raw_xref
+{
+        jint16_t magic;
+        jint16_t nodetype;      /* = JFFS2_NODETYPE_XREF */
+        jint32_t totlen;
+        jint32_t hdr_crc;
+        jint32_t ino;           /* inode number */
+        jint32_t xid;           /* XATTR identifier number */
+        jint32_t node_crc;
 } __attribute__((packed));
 
 struct jffs2_raw_summary
@@ -163,14 +201,22 @@ struct jffs2_raw_summary
         jint32_t sum_crc;       /* summary information crc */
         jint32_t node_crc;      /* node crc */
         jint32_t sum[0];        /* inode summary info */
-} __attribute__((packed));
+};
 
 union jffs2_node_union
 {
         struct jffs2_raw_inode i;
         struct jffs2_raw_dirent d;
+        struct jffs2_raw_xattr x;
+        struct jffs2_raw_xref r;
         struct jffs2_raw_summary s;
         struct jffs2_unknown_node u;
 };
 
+/* Data payload for device nodes. */
+union jffs2_device_node {
+        jint16_t old;
+        jint32_t new;
+};
+
 #endif /* __LINUX_JFFS2_H__ */
diff --git a/include/linux/jffs2_fs_i.h b/include/linux/jffs2_fs_i.h
deleted file mode 100644
index ad565bf9dcc1..000000000000
--- a/include/linux/jffs2_fs_i.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* $Id: jffs2_fs_i.h,v 1.19 2005/11/07 11:14:52 gleixner Exp $ */
-
-#ifndef _JFFS2_FS_I
-#define _JFFS2_FS_I
-
-#include <linux/version.h>
-#include <linux/rbtree.h>
-#include <asm/semaphore.h>
-
-struct jffs2_inode_info {
-        /* We need an internal mutex similar to inode->i_mutex.
-           Unfortunately, we can't used the existing one, because
-           either the GC would deadlock, or we'd have to release it
-           before letting GC proceed. Or we'd have to put ugliness
-           into the GC code so it didn't attempt to obtain the i_mutex
-           for the inode(s) which are already locked */
-        struct semaphore sem;
-
-        /* The highest (datanode) version number used for this ino */
-        uint32_t highest_version;
-
-        /* List of data fragments which make up the file */
-        struct rb_root fragtree;
-
-        /* There may be one datanode which isn't referenced by any of the
-           above fragments, if it contains a metadata update but no actual
-           data - or if this is a directory inode */
-        /* This also holds the _only_ dnode for symlinks/device nodes,
-           etc. */
-        struct jffs2_full_dnode *metadata;
-
-        /* Directory entries */
-        struct jffs2_full_dirent *dents;
-
-        /* The target path if this is the inode of a symlink */
-        unsigned char *target;
-
-        /* Some stuff we just have to keep in-core at all times, for each inode. */
-        struct jffs2_inode_cache *inocache;
-
-        uint16_t flags;
-        uint8_t usercompr;
-#if !defined (__ECOS)
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
-        struct inode vfs_inode;
-#endif
-#endif
-};
-
-#endif /* _JFFS2_FS_I */
diff --git a/include/linux/jffs2_fs_sb.h b/include/linux/jffs2_fs_sb.h
deleted file mode 100644
index 4bcfb5570221..000000000000
--- a/include/linux/jffs2_fs_sb.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/* $Id: jffs2_fs_sb.h,v 1.54 2005/09/21 13:37:34 dedekind Exp $ */
-
-#ifndef _JFFS2_FS_SB
-#define _JFFS2_FS_SB
-
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/completion.h>
-#include <asm/semaphore.h>
-#include <linux/timer.h>
-#include <linux/wait.h>
-#include <linux/list.h>
-#include <linux/rwsem.h>
-
-#define JFFS2_SB_FLAG_RO 1
-#define JFFS2_SB_FLAG_SCANNING 2 /* Flash scanning is in progress */
-#define JFFS2_SB_FLAG_BUILDING 4 /* File system building is in progress */
-
-struct jffs2_inodirty;
-
-/* A struct for the overall file system control.  Pointers to
-   jffs2_sb_info structs are named `c' in the source code.
-   Nee jffs_control
-*/
-struct jffs2_sb_info {
-        struct mtd_info *mtd;
-
-        uint32_t highest_ino;
-        uint32_t checked_ino;
-
-        unsigned int flags;
-
-        struct task_struct *gc_task;    /* GC task struct */
-        struct completion gc_thread_start; /* GC thread start completion */
-        struct completion gc_thread_exit; /* GC thread exit completion port */
-
-        struct semaphore alloc_sem;     /* Used to protect all the following
-                                           fields, and also to protect against
-                                           out-of-order writing of nodes. And GC. */
-        uint32_t cleanmarker_size;      /* Size of an _inline_ CLEANMARKER
-                                         (i.e. zero for OOB CLEANMARKER */
-
-        uint32_t flash_size;
-        uint32_t used_size;
-        uint32_t dirty_size;
-        uint32_t wasted_size;
-        uint32_t free_size;
-        uint32_t erasing_size;
-        uint32_t bad_size;
-        uint32_t sector_size;
-        uint32_t unchecked_size;
-
-        uint32_t nr_free_blocks;
-        uint32_t nr_erasing_blocks;
-
-        /* Number of free blocks there must be before we... */
-        uint8_t resv_blocks_write;      /* ... allow a normal filesystem write */
-        uint8_t resv_blocks_deletion;   /* ... allow a normal filesystem deletion */
-        uint8_t resv_blocks_gctrigger;  /* ... wake up the GC thread */
-        uint8_t resv_blocks_gcbad;      /* ... pick a block from the bad_list to GC */
-        uint8_t resv_blocks_gcmerge;    /* ... merge pages when garbage collecting */
-
-        uint32_t nospc_dirty_size;
-
-        uint32_t nr_blocks;
-        struct jffs2_eraseblock *blocks;        /* The whole array of blocks. Used for getting blocks
-                                                 * from the offset (blocks[ofs / sector_size]) */
-        struct jffs2_eraseblock *nextblock;     /* The block we're currently filling */
-
-        struct jffs2_eraseblock *gcblock;       /* The block we're currently garbage-collecting */
-
-        struct list_head clean_list;            /* Blocks 100% full of clean data */
-        struct list_head very_dirty_list;       /* Blocks with lots of dirty space */
-        struct list_head dirty_list;            /* Blocks with some dirty space */
-        struct list_head erasable_list;         /* Blocks which are completely dirty, and need erasing */
-        struct list_head erasable_pending_wbuf_list;    /* Blocks which need erasing but only after the current wbuf is flushed */
-        struct list_head erasing_list;          /* Blocks which are currently erasing */
-        struct list_head erase_pending_list;    /* Blocks which need erasing now */
-        struct list_head erase_complete_list;   /* Blocks which are erased and need the clean marker written to them */
-        struct list_head free_list;             /* Blocks which are free and ready to be used */
-        struct list_head bad_list;              /* Bad blocks. */
-        struct list_head bad_used_list;         /* Bad blocks with valid data in. */
-
-        spinlock_t erase_completion_lock;       /* Protect free_list and erasing_list
-                                                   against erase completion handler */
-        wait_queue_head_t erase_wait;           /* For waiting for erases to complete */
-
-        wait_queue_head_t inocache_wq;
-        struct jffs2_inode_cache **inocache_list;
-        spinlock_t inocache_lock;
-
-        /* Sem to allow jffs2_garbage_collect_deletion_dirent to
-           drop the erase_completion_lock while it's holding a pointer
-           to an obsoleted node. I don't like this. Alternatives welcomed. */
-        struct semaphore erase_free_sem;
-
-        uint32_t wbuf_pagesize; /* 0 for NOR and other flashes with no wbuf */
-
-#ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-        /* Write-behind buffer for NAND flash */
-        unsigned char *wbuf;
-        uint32_t wbuf_ofs;
-        uint32_t wbuf_len;
-        struct jffs2_inodirty *wbuf_inodes;
-
-        struct rw_semaphore wbuf_sem;   /* Protects the write buffer */
-
-        /* Information about out-of-band area usage... */
-        struct nand_oobinfo *oobinfo;
-        uint32_t badblock_pos;
-        uint32_t fsdata_pos;
-        uint32_t fsdata_len;
-#endif
-
-        struct jffs2_summary *summary;          /* Summary information */
-
-        /* OS-private pointer for getting back to master superblock info */
-        void *os_priv;
-};
-
-#endif /* _JFFS2_FB_SB */
diff --git a/include/linux/module.h b/include/linux/module.h
index eaec13ddd667..b0d44134f3c4 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -557,13 +557,4 @@ static inline void module_remove_driver(struct device_driver *driver)
 
 #define __MODULE_STRING(x) __stringify(x)
 
-/* Use symbol_get and symbol_put instead.  You'll thank me. */
-#define HAVE_INTER_MODULE
-extern void __deprecated inter_module_register(const char *,
-                struct module *, const void *);
-extern void __deprecated inter_module_unregister(const char *);
-extern const void * __deprecated inter_module_get_request(const char *,
-                const char *);
-extern void __deprecated inter_module_put(const char *);
-
 #endif /* _LINUX_MODULE_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/mtd.h b/include/linux/mtd/mtd.h
index b6f2fdae65c6..e1d2a3d56546 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -56,18 +56,69 @@ 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 +130,6 @@ 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 +137,8 @@ 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 +161,10 @@ 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 +178,11 @@ 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 +201,9 @@ 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 +237,6 @@ 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 +257,7 @@ 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..a30969eb9afe 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -11,47 +11,11 @@
  * 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
@@ -67,10 +31,6 @@ 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 +39,45 @@ 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 +99,8 @@ 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 +111,12 @@ 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 +155,10 @@ 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 +177,12 @@ 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 +216,102 @@ 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 +321,13 @@ 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 +335,57 @@ 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 +397,19 @@ 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 +424,7 @@ 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 +464,7 @@ 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 +503,14 @@ 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 +518,53 @@ 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/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index b5994ea56a5a..ee2afbaefe1b 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -28,28 +28,17 @@ struct mtd_oob_buf {
 #define MTD_ROM                 2
 #define MTD_NORFLASH            3
 #define MTD_NANDFLASH           4
-#define MTD_PEROM               5
 #define MTD_DATAFLASH           6
-#define MTD_OTHER               14
-#define MTD_UNKNOWN             15
-
-#define MTD_CLEAR_BITS          1       // Bits can be cleared (flash)
-#define MTD_SET_BITS            2       // Bits can be set
-#define MTD_ERASEABLE           4       // Has an erase function
-#define MTD_WRITEB_WRITEABLE    8       // Direct IO is possible
-#define MTD_VOLATILE            16      // Set for RAMs
-#define MTD_XIP                 32      // eXecute-In-Place possible
-#define MTD_OOB                 64      // Out-of-band data (NAND flash)
-#define MTD_ECC                 128     // Device capable of automatic ECC
-#define MTD_NO_VIRTBLOCKS       256     // Virtual blocks not allowed
-#define MTD_PROGRAM_REGIONS     512     // Configurable Programming Regions
+
+#define MTD_WRITEABLE           0x400   /* Device is writeable */
+#define MTD_BIT_WRITEABLE       0x800   /* Single bits can be flipped */
+#define MTD_NO_ERASE            0x1000  /* No erase necessary */
 
 // Some common devices / combinations of capabilities
 #define MTD_CAP_ROM             0
-#define MTD_CAP_RAM             (MTD_CLEAR_BITS|MTD_SET_BITS|MTD_WRITEB_WRITEABLE)
-#define MTD_CAP_NORFLASH        (MTD_CLEAR_BITS|MTD_ERASEABLE)
-#define MTD_CAP_NANDFLASH       (MTD_CLEAR_BITS|MTD_ERASEABLE|MTD_OOB)
-#define MTD_WRITEABLE           (MTD_CLEAR_BITS|MTD_SET_BITS)
+#define MTD_CAP_RAM             (MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
+#define MTD_CAP_NORFLASH        (MTD_WRITEABLE | MTD_BIT_WRITEABLE)
+#define MTD_CAP_NANDFLASH       (MTD_WRITEABLE)
 
 
 // Types of automatic ECC/Checksum available
@@ -74,7 +63,7 @@ struct mtd_info_user {
         uint32_t flags;
         uint32_t size;   // Total size of the MTD
         uint32_t erasesize;
-        uint32_t oobblock;  // Size of OOB blocks (e.g. 512)
+        uint32_t writesize;
         uint32_t oobsize;   // Amount of OOB data per block (e.g. 16)
         uint32_t ecctype;
         uint32_t eccsize;
@@ -94,12 +83,12 @@ struct otp_info {
         uint32_t locked;
 };
 
-#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
-#define MEMERASE                _IOW('M', 2, struct erase_info_user)
-#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
-#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
-#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
-#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
+#define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
+#define MEMERASE                _IOW('M', 2, struct erase_info_user)
+#define MEMWRITEOOB             _IOWR('M', 3, struct mtd_oob_buf)
+#define MEMREADOOB              _IOWR('M', 4, struct mtd_oob_buf)
+#define MEMLOCK                 _IOW('M', 5, struct erase_info_user)
+#define MEMUNLOCK               _IOW('M', 6, struct erase_info_user)
 #define MEMGETREGIONCOUNT       _IOR('M', 7, int)
 #define MEMGETREGIONINFO        _IOWR('M', 8, struct region_info_user)
 #define MEMSETOOBSEL            _IOW('M', 9, struct nand_oobinfo)
@@ -109,8 +98,15 @@ struct otp_info {
 #define OTPSELECT               _IOR('M', 13, int)
 #define OTPGETREGIONCOUNT       _IOW('M', 14, int)
 #define OTPGETREGIONINFO        _IOW('M', 15, struct otp_info)
-#define OTPLOCK         _IOR('M', 16, struct otp_info)
+#define OTPLOCK                 _IOR('M', 16, struct otp_info)
+#define ECCGETLAYOUT            _IOR('M', 17, struct nand_ecclayout)
+#define ECCGETSTATS             _IOR('M', 18, struct mtd_ecc_stats)
+#define MTDFILEMODE             _IO('M', 19)
 
+/*
+ * Obsolete legacy interface. Keep it in order not to break userspace
+ * interfaces
+ */
 struct nand_oobinfo {
         uint32_t useecc;
         uint32_t eccbytes;
@@ -118,4 +114,46 @@ struct nand_oobinfo {
         uint32_t eccpos[32];
 };
 
+struct nand_oobfree {
+        uint32_t offset;
+        uint32_t length;
+};
+
+#define MTD_MAX_OOBFREE_ENTRIES 8
+/*
+ * 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[64];
+        uint32_t oobavail;
+        struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES];
+};
+
+/**
+ * struct mtd_ecc_stats - error correction status
+ *
+ * @corrected:  number of corrected bits
+ * @failed:     number of uncorrectable errors
+ * @badblocks:  number of bad blocks in this partition
+ * @bbtblocks:  number of blocks reserved for bad block tables
+ */
+struct mtd_ecc_stats {
+        uint32_t corrected;
+        uint32_t failed;
+        uint32_t badblocks;
+        uint32_t bbtblocks;
+};
+
+/*
+ * Read/write file modes for access to MTD
+ */
+enum mtd_file_modes {
+        MTD_MODE_NORMAL = MTD_OTP_OFF,
+        MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
+        MTD_MODE_OTP_USER = MTD_OTP_USER,
+        MTD_MODE_RAW,
+};
+
 #endif /* __MTD_ABI_H__ */
diff --git a/include/mtd/mtd-user.h b/include/mtd/mtd-user.h
index 1c13fc7161fe..713f34d3e62e 100644
--- a/include/mtd/mtd-user.h
+++ b/include/mtd/mtd-user.h
@@ -16,5 +16,6 @@ typedef struct mtd_info_user mtd_info_t;
 typedef struct erase_info_user erase_info_t;
 typedef struct region_info_user region_info_t;
 typedef struct nand_oobinfo nand_oobinfo_t;
+typedef struct nand_ecclayout nand_ecclayout_t;
 
 #endif /* __MTD_USER_H__ */