v2.4.5.2 -> v2.4.5.3

  - remember to increment the version number
  - Chris Mason: reiserfs mark_journal_new and bh leak fix
  - Richard Gooch: devfs update
  - Alexander Viro: further FS cleanup (superblock list)
  - David Woodhouse: MTD update
  - Kai Germaschewski: ISDN update (stanford checker fixes etc)
  - Rich Baum: gcc-3.0 warning fixes
  - Jeff Garzik: network driver updates
  - Geert Uytterhoeven: m68k fbdev logo merge glitch fix
  - Andrea Arcangeli: fix signal return path
  - David Miller: Sparc updates
  - Johannes Erdfelt: USB update
  - Carsten Otte, Andries Brouwer: don't clear blk_size unconditionally
  on partition check
  - Martin Frey: alpha Sable irq fix
  - Paul Mackerras: PPC softirq update
  - Patrick Mochel: PCI power management infrastructure
  - Robert Siemer: miroSOUND driver update
  - Neil Brown: knfsd updates, including ability to export ReiserFS filesystems
  - Trond Myklebust: NFS readdir fixup, don't update atime on client
  - Andrew Morton: truncate_inode_pages speedup
  - Paul Menage: make inode quota count all inodes..

10 files changed, 563 insertions, 174 deletions

diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 4ce69eee899a..bda9f0ae74b6 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -1,14 +1,160 @@
 
 /* Common Flash Interface structures 
  * See http://support.intel.com/design/flash/technote/index.htm
- * $Id: cfi.h,v 1.6 2000/07/03 13:29:16 dwmw2 Exp $
+ * $Id: cfi.h,v 1.21 2001/06/03 01:32:57 nico Exp $
  */
 
 #ifndef __MTD_CFI_H__
 #define __MTD_CFI_H__
 
+#include <linux/config.h>
+#include <linux/delay.h>
 #include <linux/types.h>
 #include <linux/mtd/flashchip.h>
+#include <linux/mtd/cfi_endian.h>
+
+/*
+ * You can optimize the code size and performance by defining only 
+ * the geometry(ies) available on your hardware.
+ * CFIDEV_INTERLEAVE_n, where  represents the interleave (number of chips to fill the bus width)
+ * CFIDEV_BUSWIDTH_n, where n is the bus width in bytes (1, 2 or 4 bytes)
+ *
+ * By default, all (known) geometries are supported.
+ */
+
+#ifndef CONFIG_MTD_CFI_GEOMETRY
+
+#define CFIDEV_INTERLEAVE_1 (1)
+#define CFIDEV_INTERLEAVE_2 (2)
+#define CFIDEV_INTERLEAVE_4 (4)
+
+#define CFIDEV_BUSWIDTH_1 (1)
+#define CFIDEV_BUSWIDTH_2 (2)
+#define CFIDEV_BUSWIDTH_4 (4)
+
+#else
+
+#ifdef CONFIG_MTD_CFI_I1
+#define CFIDEV_INTERLEAVE_1 (1)
+#endif
+#ifdef CONFIG_MTD_CFI_I2
+#define CFIDEV_INTERLEAVE_2 (2)
+#endif
+#ifdef CONFIG_MTD_CFI_I4
+#define CFIDEV_INTERLEAVE_4 (4)
+#endif
+
+#ifdef CONFIG_MTD_CFI_B1
+#define CFIDEV_BUSWIDTH_1 (1)
+#endif
+#ifdef CONFIG_MTD_CFI_B2
+#define CFIDEV_BUSWIDTH_2 (2)
+#endif
+#ifdef CONFIG_MTD_CFI_B4
+#define CFIDEV_BUSWIDTH_4 (4)
+#endif
+
+#endif
+
+/*
+ * The following macros are used to select the code to execute:
+ *   cfi_buswidth_is_*()
+ *   cfi_interleave_is_*()
+ *   [where * is either 1, 2 or 4]
+ * Those macros should be used with 'if' statements.  If only one of few
+ * geometry arrangements are selected, they expand to constants thus allowing
+ * the compiler (most of them being 0) to optimize away all the unneeded code,
+ * while still validating the syntax (which is not possible with embedded 
+ * #if ... #endif constructs).
+ */
+
+#ifdef CFIDEV_INTERLEAVE_1
+# ifdef CFIDEV_INTERLEAVE
+#  undef CFIDEV_INTERLEAVE
+#  define CFIDEV_INTERLEAVE (cfi->interleave)
+# else
+#  define CFIDEV_INTERLEAVE CFIDEV_INTERLEAVE_1
+# endif
+# define cfi_interleave_is_1() (CFIDEV_INTERLEAVE == CFIDEV_INTERLEAVE_1)
+#else
+# define cfi_interleave_is_1() (0)
+#endif
+
+#ifdef CFIDEV_INTERLEAVE_2
+# ifdef CFIDEV_INTERLEAVE
+#  undef CFIDEV_INTERLEAVE
+#  define CFIDEV_INTERLEAVE (cfi->interleave)
+# else
+#  define CFIDEV_INTERLEAVE CFIDEV_INTERLEAVE_2
+# endif
+# define cfi_interleave_is_2() (CFIDEV_INTERLEAVE == CFIDEV_INTERLEAVE_2)
+#else
+# define cfi_interleave_is_2() (0)
+#endif
+
+#ifdef CFIDEV_INTERLEAVE_4
+# ifdef CFIDEV_INTERLEAVE
+#  undef CFIDEV_INTERLEAVE
+#  define CFIDEV_INTERLEAVE (cfi->interleave)
+# else
+#  define CFIDEV_INTERLEAVE CFIDEV_INTERLEAVE_4
+# endif
+# define cfi_interleave_is_4() (CFIDEV_INTERLEAVE == CFIDEV_INTERLEAVE_4)
+#else
+# define cfi_interleave_is_4() (0)
+#endif
+
+#ifndef CFIDEV_INTERLEAVE
+#error You must define at least one interleave to support!
+#endif
+
+#ifdef CFIDEV_BUSWIDTH_1
+# ifdef CFIDEV_BUSWIDTH
+#  undef CFIDEV_BUSWIDTH
+#  define CFIDEV_BUSWIDTH (map->buswidth)
+# else
+#  define CFIDEV_BUSWIDTH CFIDEV_BUSWIDTH_1
+# endif
+# define cfi_buswidth_is_1() (CFIDEV_BUSWIDTH == CFIDEV_BUSWIDTH_1)
+#else
+# define cfi_buswidth_is_1() (0)
+#endif
+
+#ifdef CFIDEV_BUSWIDTH_2
+# ifdef CFIDEV_BUSWIDTH
+#  undef CFIDEV_BUSWIDTH
+#  define CFIDEV_BUSWIDTH (map->buswidth)
+# else
+#  define CFIDEV_BUSWIDTH CFIDEV_BUSWIDTH_2
+# endif
+# define cfi_buswidth_is_2() (CFIDEV_BUSWIDTH == CFIDEV_BUSWIDTH_2)
+#else
+# define cfi_buswidth_is_2() (0)
+#endif
+
+#ifdef CFIDEV_BUSWIDTH_4
+# ifdef CFIDEV_BUSWIDTH
+#  undef CFIDEV_BUSWIDTH
+#  define CFIDEV_BUSWIDTH (map->buswidth)
+# else
+#  define CFIDEV_BUSWIDTH CFIDEV_BUSWIDTH_4
+# endif
+# define cfi_buswidth_is_4() (CFIDEV_BUSWIDTH == CFIDEV_BUSWIDTH_4)
+#else
+# define cfi_buswidth_is_4() (0)
+#endif
+
+#ifndef CFIDEV_BUSWIDTH
+#error You must define at least one bus width to support!
+#endif
+
+/* NB: these values must represents the number of bytes needed to meet the 
+ *     device type (x8, x16, x32).  Eg. a 32 bit device is 4 x 8 bytes. 
+ *     These numbers are used in calculations.
+ */
+#define CFI_DEVICETYPE_X8  (8 / 8)
+#define CFI_DEVICETYPE_X16 (16 / 8)
+#define CFI_DEVICETYPE_X32 (32 / 8)
 
 /* NB: We keep these structures in memory in HOST byteorder, except
  * where individually noted.
@@ -37,7 +183,7 @@ struct cfi_ident {
   __u16 InterfaceDesc;
   __u16 MaxBufWriteSize;
   __u8  NumEraseRegions;
-  __u32 EraseRegionInfo[1]; /* Not host ordered */
+  __u32 EraseRegionInfo[0]; /* Not host ordered */
 } __attribute__((packed));
 
 /* Extended Query Structure for both PRI and ALT */
@@ -82,20 +228,164 @@ struct cfi_bri_query {
 #define P_ID_RESERVED 65535
 
 
+#define CFI_MODE_CFI	0
+#define CFI_MODE_JEDEC	1
+
 struct cfi_private {
 	__u16 cmdset;
 	void *cmdset_priv;
 	int interleave;
+	int device_type;
+	int cfi_mode;		/* Are we a JEDEC device pretending to be CFI? */
+	int addr_unlock1;
+	int addr_unlock2;
+	int fast_prog;
 	struct mtd_info *(*cmdset_setup)(struct map_info *);
-	struct cfi_ident cfiq; /* For now only one. We insist that all devs
+	struct cfi_ident *cfiq; /* For now only one. We insist that all devs
 				  must be of the same type. */
+	__u8 mfr, id;
 	int numchips;
 	unsigned long chipshift; /* Because they're of the same type */
 	const char *im_name;	 /* inter_module name for cmdset_setup */
 	struct flchip chips[0];  /* per-chip data structure for each chip */
-	/* do not add extra fields after "chips" */
 };
 
 #define MAX_CFI_CHIPS 8 /* Entirely arbitrary to avoid realloc() */
 
+/*
+ * Returns the command address according to the given geometry.
+ */
+static inline __u32 cfi_build_cmd_addr(__u32 cmd_ofs, int interleave, int type)
+{
+	return (cmd_ofs * type) * interleave;
+}
+
+/*
+ * Transforms the CFI command for the given geometry (bus width & interleave.
+ */
+static inline __u32 cfi_build_cmd(u_char cmd, struct map_info *map, struct cfi_private *cfi)
+{
+	__u32 val = 0;
+
+	if (cfi_buswidth_is_1()) {
+		/* 1 x8 device */
+		val = cmd;
+	} else if (cfi_buswidth_is_2()) {
+		if (cfi_interleave_is_1()) {
+			/* 1 x16 device in x16 mode */
+			val = cpu_to_cfi16(cmd);
+		} else if (cfi_interleave_is_2()) {
+			/* 2 (x8, x16 or x32) devices in x8 mode */
+			val = cpu_to_cfi16((cmd << 8) | cmd);
+		}
+	} else if (cfi_buswidth_is_4()) {
+		if (cfi_interleave_is_1()) {
+			/* 1 x32 device in x32 mode */
+			val = cpu_to_cfi32(cmd);
+		} else if (cfi_interleave_is_2()) {
+			/* 2 x16 device in x16 mode */
+			val = cpu_to_cfi32((cmd << 16) | cmd);
+		} else if (cfi_interleave_is_4()) {
+			/* 4 (x8, x16 or x32) devices in x8 mode */
+			val = (cmd << 16) | cmd;
+			val = cpu_to_cfi32((val << 8) | val);
+		}
+	}
+	return val;
+}
+#define CMD(x)  cfi_build_cmd((x), map, cfi)
+
+/*
+ * Read a value according to the bus width.
+ */
+
+static inline __u32 cfi_read(struct map_info *map, __u32 addr)
+{
+	if (cfi_buswidth_is_1()) {
+		return map->read8(map, addr);
+	} else if (cfi_buswidth_is_2()) {
+		return map->read16(map, addr);
+	} else if (cfi_buswidth_is_4()) {
+		return map->read32(map, addr);
+	} else {
+		return 0;
+	}
+}
+
+/*
+ * Write a value according to the bus width.
+ */
+
+static inline void cfi_write(struct map_info *map, __u32 val, __u32 addr)
+{
+	if (cfi_buswidth_is_1()) {
+		map->write8(map, val, addr);
+	} else if (cfi_buswidth_is_2()) {
+		map->write16(map, val, addr);
+	} else if (cfi_buswidth_is_4()) {
+		map->write32(map, val, addr);
+	}
+}
+
+/*
+ * Sends a CFI command to a bank of flash for the given geometry.
+ *
+ * Returns the offset in flash where the command was written.
+ * If prev_val is non-null, it will be set to the value at the command address,
+ * before the command was written.
+ */
+static inline __u32 cfi_send_gen_cmd(u_char cmd, __u32 cmd_addr, __u32 base,
+				struct map_info *map, struct cfi_private *cfi,
+				int type, __u32 *prev_val)
+{
+	__u32 val;
+	__u32 addr = base + cfi_build_cmd_addr(cmd_addr, CFIDEV_INTERLEAVE, type);
+
+	val = cfi_build_cmd(cmd, map, cfi);
+
+	if (prev_val)
+		*prev_val = cfi_read(map, addr);
+
+	cfi_write(map, val, addr);
+
+	return addr - base;
+}
+
+static inline __u8 cfi_read_query(struct map_info *map, __u32 addr)
+{
+	if (cfi_buswidth_is_1()) {
+		return map->read8(map, addr);
+	} else if (cfi_buswidth_is_2()) {
+		return cfi16_to_cpu(map->read16(map, addr));
+	} else if (cfi_buswidth_is_4()) {
+		return cfi32_to_cpu(map->read32(map, addr));
+	} else {
+		return 0;
+	}
+}
+
+#ifndef min
+#define min(x,y) ( (x)<(y)?(x):(y) )
+#endif
+
+static inline void cfi_udelay(int us)
+{
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,0)
+	if (current->need_resched)
+		schedule();
+	else
+#endif
+		udelay(us);
+}
+static inline void cfi_spin_lock(spinlock_t *mutex)
+{
+	spin_lock_bh(mutex);
+}
+
+static inline void cfi_spin_unlock(spinlock_t *mutex)
+{
+	spin_unlock_bh(mutex);
+}
+
+
 #endif /* __MTD_CFI_H__ */
diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h
new file mode 100644
index 000000000000..052139bf210d
--- /dev/null
+++ b/include/linux/mtd/cfi_endian.h
@@ -0,0 +1,141 @@
+/*
+ * $Id: cfi_endian.h,v 1.9 2001/04/23 21:19:11 nico Exp $
+ *
+ * It seems that some helpful people decided to make life easier
+ * for software engineers who aren't capable of dealing with the 
+ * concept of byteswapping, and advise engineers to swap the bytes
+ * by wiring the data lines up to flash chips from BE hosts backwards.
+ *
+ * So we have ugly stuff here to disable the byteswapping where necessary.
+ * I'm not going to try to do this dynamically.
+ *
+ * At first I thought these guys were on crack, but then I discovered the
+ * LART. 
+ *
+ */
+
+#include <asm/byteorder.h>
+
+#ifndef CONFIG_MTD_CFI_ADV_OPTIONS
+
+#define CFI_HOST_ENDIAN
+
+#else
+
+#ifdef CONFIG_MTD_CFI_NOSWAP
+#define CFI_HOST_ENDIAN
+#endif
+
+#ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
+#define CFI_LITTLE_ENDIAN
+#endif
+
+#ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
+#define CFI_BIG_ENDIAN
+#endif
+
+#ifdef CONFIG_MTD_CFI_LART_BIT_SWAP
+#define CFI_LART_ENDIAN
+#endif
+
+#endif
+
+#if defined(CFI_LITTLE_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) cpu_to_le16(x)
+#define cpu_to_cfi32(x) cpu_to_le32(x)
+#define cfi16_to_cpu(x) le16_to_cpu(x)
+#define cfi32_to_cpu(x) le32_to_cpu(x)
+#elif defined (CFI_BIG_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) cpu_to_be16(x)
+#define cpu_to_cfi32(x) cpu_to_be32(x)
+#define cfi16_to_cpu(x) be16_to_cpu(x)
+#define cfi32_to_cpu(x) be32_to_cpu(x)
+#elif defined (CFI_HOST_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) (x)
+#define cpu_to_cfi32(x) (x)
+#define cfi16_to_cpu(x) (x)
+#define cfi32_to_cpu(x) (x)
+#elif defined (CFI_LART_ENDIAN)
+/* 
+   Fuck me backwards. The data line mapping on LART is as follows:
+
+	U2	CPU	|	U3	CPU
+	 0	20	|	0	12
+	 1	22	|	1	14
+	 2	19	|	2	11
+	 3	17	|	3	9
+	 4	24	|	4	0
+	 5	26	|	5	2
+	 6	31	|	6	7
+	 7	29	|	7	5
+	 8	21	|	8	13
+	 9	23	|	9	15
+	 10	18	|	10	10
+	 11	16	|	11	8
+	 12	25	|	12	1
+	 13	27	|	13	3
+	 14	30	|	14	6
+	 15	28	|	15	4
+
+   For historical reference: the reason why the LART has this strange
+   mapping is that the designer of the board wanted address lines to
+   be as short as possible. Why? Because in that way you don't need
+   drivers in the address lines so the memory access time can be held
+   short. -- Erik Mouw <J.A.K.Mouw@its.tudelft.nl>
+*/
+/* cpu_to_cfi16() and cfi16_to_cpu() are not needed because the LART
+ * only has 32 bit wide Flash memory. -- Erik
+ */
+#define cpu_to_cfi16(x) (x)
+#define cfi16_to_cpu(x) (x)
+static inline __u32 cfi32_to_cpu(__u32 x)
+{
+	__u32 ret;
+
+	ret =  (x & 0x08009000) >> 11;
+	ret |= (x & 0x00002000) >> 10;
+	ret |= (x & 0x04004000) >> 8;
+	ret |= (x & 0x00000010) >> 4;
+	ret |= (x & 0x91000820) >> 3;
+	ret |= (x & 0x22080080) >> 2;
+	ret |= (x & 0x40000400);
+	ret |= (x & 0x00040040) << 1;
+	ret |= (x & 0x00110000) << 4;
+	ret |= (x & 0x00220100) << 5;
+	ret |= (x & 0x00800208) << 6;
+	ret |= (x & 0x00400004) << 9;
+	ret |= (x & 0x00000001) << 12;
+	ret |= (x & 0x00000002) << 13;
+
+	return ret;
+}
+static inline __u32 cpu_to_cfi32(__u32 x)
+{
+	__u32 ret;
+
+	ret =  (x & 0x00010012) << 11;
+	ret |= (x & 0x00000008) << 10;
+	ret |= (x & 0x00040040) << 8;
+	ret |= (x & 0x00000001) << 4;
+	ret |= (x & 0x12200104) << 3;
+	ret |= (x & 0x08820020) << 2;
+	ret |= (x & 0x40000400);
+	ret |= (x & 0x00080080) >> 1;
+	ret |= (x & 0x01100000) >> 4;
+	ret |= (x & 0x04402000) >> 5;
+	ret |= (x & 0x20008200) >> 6;
+	ret |= (x & 0x80000800) >> 9;
+	ret |= (x & 0x00001000) >> 12;
+	ret |= (x & 0x00004000) >> 13;
+
+	return ret;
+}
+#else
+#error No CFI endianness defined
+#endif
diff --git a/include/linux/mtd/doc2000.h b/include/linux/mtd/doc2000.h
index 696938aa1853..c8e143a1f723 100644
--- a/include/linux/mtd/doc2000.h
+++ b/include/linux/mtd/doc2000.h
@@ -2,7 +2,7 @@
 /* Linux driver for Disk-On-Chip 2000       */
 /* (c) 1999 Machine Vision Holdings, Inc.   */
 /* Author: David Woodhouse <dwmw2@mvhi.com> */
-/* $Id: doc2000.h,v 1.12 2000/11/03 12:43:43 dwmw2 Exp $ */
+/* $Id: doc2000.h,v 1.13 2001/05/29 12:03:45 dwmw2 Exp $ */
 
 #ifndef __MTD_DOC2000_H__
 #define __MTD_DOC2000_H__
@@ -43,15 +43,19 @@
  * On PPC, it's mmap'd and 16-bit wide.
  * Others use readb/writeb 
  */
-#if defined(__arm__) 
-#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u32 *)(((unsigned long)adr)+(reg<<2))))
-#define WriteDOC_(d, adr, reg)  do{ *(__u32 *)(((unsigned long)adr)+(reg<<2)) = (__u32)d} while(0)
+#if defined(__arm__)
+#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u32 *)(((unsigned long)adr)+((reg)<<2))))
+#define WriteDOC_(d, adr, reg)  do{ *(__u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
+#define DOC_IOREMAP_LEN 0x8000
 #elif defined(__ppc__)
-#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u16 *)(((unsigned long)adr)+(reg<<1))))
-#define WriteDOC_(d, adr, reg)  do{ *(__u16 *)(((unsigned long)adr)+(reg<<1)) = (__u16)d} while(0)
+#define ReadDOC_(adr, reg)      ((unsigned char)(*(__u16 *)(((unsigned long)adr)+((reg)<<1))))
+#define WriteDOC_(d, adr, reg)  do{ *(__u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
+#define DOC_IOREMAP_LEN 0x4000
 #else
-#define ReadDOC_(adr, reg)      readb(((unsigned long)adr) + reg)
-#define WriteDOC_(d, adr, reg)  writeb(d, ((unsigned long)adr) + reg)
+#define ReadDOC_(adr, reg)      readb(((unsigned long)adr) + (reg))
+#define WriteDOC_(d, adr, reg)  writeb(d, ((unsigned long)adr) + (reg))
+#define DOC_IOREMAP_LEN 0x2000
+
 #endif
 
 #if defined(__i386__)
diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h
index 17c7cec2ccd2..4cdccad20abe 100644
--- a/include/linux/mtd/flashchip.h
+++ b/include/linux/mtd/flashchip.h
@@ -6,7 +6,7 @@
  *
  * (C) 2000 Red Hat. GPLd.
  *
- * $Id: flashchip.h,v 1.4 2000/07/03 12:58:41 dwmw2 Exp $
+ * $Id: flashchip.h,v 1.7 2001/01/18 03:52:36 nico Exp $
  *
  */
 
@@ -25,12 +25,17 @@ typedef enum {
 	FL_CFI_QUERY,
 	FL_JEDEC_QUERY,
 	FL_ERASING,
+	FL_ERASE_SUSPENDING,
 	FL_ERASE_SUSPENDED,
 	FL_WRITING,
+	FL_WRITING_TO_BUFFER,
+	FL_WRITE_SUSPENDING,
 	FL_WRITE_SUSPENDED,
 	FL_PM_SUSPENDED,
 	FL_SYNCING,
 	FL_UNLOADING,
+	FL_LOCKING,
+	FL_UNLOCKING,
 	FL_UNKNOWN
 } flstate_t;
 
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 71fc46b1a7fa..84553406e6b1 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -1,6 +1,6 @@
 
 /* Overhauled routines for dealing with different mmap regions of flash */
-/* $Id: map.h,v 1.10.2.2 2001/01/09 00:44:51 dwmw2 Exp $ */
+/* $Id: map.h,v 1.24 2001/06/09 19:53:16 dwmw2 Exp $ */
 
 #ifndef __LINUX_MTD_MAP_H__
 #define __LINUX_MTD_MAP_H__
@@ -53,47 +53,23 @@ struct map_info {
 	unsigned long map_priv_1;
 	unsigned long map_priv_2;
 	void *fldrv_priv;
-	void (*fldrv_destroy)(struct mtd_info *);
-	const char *im_name;
+	struct mtd_chip_driver *fldrv;
 };
 
-#ifdef CONFIG_MODULES
-/* 
- * Probe for the contents of a map device and make an MTD structure
- * if anything is recognised. Doesn't register it because the calling
- * map driver needs to set the 'module' field first.
- */
-static inline struct mtd_info *do_map_probe(struct map_info *map, const char *funcname, const char *modname)
-{
-	struct mtd_info *(*probe_p)(struct map_info *);
-	struct mtd_info *mtd = NULL;
 
-	if ((probe_p = inter_module_get_request(modname, funcname)))
-		mtd = (*probe_p)(map);	/* map->im_name is set by probe */
-
-	return mtd;
-}
+struct mtd_chip_driver {
+	struct mtd_info *(*probe)(struct map_info *map);
+	void (*destroy)(struct mtd_info *);
+	struct module *module;
+	char *name;
+	struct list_head list;
+};
 
+void register_mtd_chip_driver(struct mtd_chip_driver *);
+void unregister_mtd_chip_driver(struct mtd_chip_driver *);
 
-/* 
- * Commonly-used probe functions for different types of chip.
- */
-#define do_cfi_probe(x) do_map_probe(x, "cfi_probe", "cfi_probe")
-#define do_jedec_probe(x) do_map_probe(x, "jedec_probe", "jedec_probe")
-#define do_ram_probe(x) do_map_probe(x, "map_ram_probe", "map_ram")
-#define do_rom_probe(x) do_map_probe(x, "map_rom_probe", "map_rom")
-#else
-	/* without module support, call probe function directly */
-extern struct mtd_info *cfi_probe(struct map_info *);
-extern struct mtd_info *jedec_probe(struct map_info *);
-extern struct mtd_info *map_ram_probe(struct map_info *);
-extern struct mtd_info *map_rom_probe(struct map_info *);
+struct mtd_info *do_map_probe(char *name, struct map_info *map);
 
-#define do_cfi_probe(x) cfi_probe(x)
-#define do_jedec_probe(x) jedec_probe(x)
-#define do_ram_probe(x) map_ram_probe(x)
-#define do_rom_probe(x) map_rom_probe(x)
-#endif
 
 /*
  * Destroy an MTD device which was created for a map device.
@@ -103,8 +79,11 @@ static inline void map_destroy(struct mtd_info *mtd)
 {
 	struct map_info *map = mtd->priv;
 
-	map->fldrv_destroy(mtd);
-	inter_module_put(map->im_name);
+	map->fldrv->destroy(mtd);
+#ifdef CONFIG_MODULES
+	if (map->fldrv->module)
+		__MOD_DEC_USE_COUNT(map->fldrv->module);
+#endif
 	kfree(mtd);
 }
 
diff --git a/include/linux/mtd/mapped.h b/include/linux/mtd/mapped.h
deleted file mode 100644
index 81668b71e916..000000000000
--- a/include/linux/mtd/mapped.h
+++ /dev/null
@@ -1,92 +0,0 @@
-// -*- mode: cpp; mode: fold -*-
-// Description                                                          /*{{{*/
-// $Id: mapped.h,v 1.2 2000/03/14 17:13:12 dwmw2 Exp $
-/* ######################################################################
-
-   Memory Mapped  MTD Routines
-   
-   These routines are support routines for memory mapped chips, with
-   routines to support common sorts of flash. For devices that are based
-   on a memory mapped interface these routines provide everything necessary,
-   only a window changing function is required by the low level implementation.
-   
-   The entry point to setup and register a memory mapped MTD device, 
-   mtd_mapped_setup will perform a detection sequence that can determine
-   the type size and configuration of many sorts of chip setups. 
-
-   ROMs and RAMs are detected and passed off to very simple routines, Flash
-   writing and erasing is handled as well.
-   
-   ##################################################################### */
-									/*}}}*/
-#ifndef __MTD_FLASH_H__
-#define __MTD_FLASH_H__
-
-#include <linux/types.h>
-#include <linux/mtd/mtd.h>
-
-// MTD flags for ordinary flash
-struct JEDECTable
-{
-   u_short jedec;
-   char *name;
-   u_long size;
-   u_long sectorsize;
-   u_long capabilities;
-};
-
-// JEDEC being 0 is the end of the chip array
-struct flash_chip
-{
-   u_short jedec;
-   u_long size;
-   u_long sectorsize;
-   u_long base;
-   u_long capabilities;
-   
-   // These markers are filled in by the flash_chip_scan function
-   u_long start;
-   u_long length;
-};
-
-struct mapped_mtd_info
-{
-   struct mtd_info mtd;
-   u_long pagesize;        // Size of the memory window
-   u_long maxsize;         // Maximum MTD size in pages
-   u_char mfr,id;
-   char part[100];            // Part Catalogue number if available
-   int *lock;
-   // Multiple chip support, only used if this is type MTD_FLASH
-   u_char interleve;       // Address chip interleve (0 = concatination)
-   struct flash_chip chips[5];
-  
-   // Operations
-   unsigned long (*page)(struct mapped_mtd_info *map,unsigned long page);
-   int (*jedec_sense)(struct mapped_mtd_info *map);
-};
-
-extern struct JEDECTable mtd_JEDEC_table[];
-
-// Automatic configurators
-extern int mtd_mapped_setup(struct mapped_mtd_info *map);
-extern int mtd_mapped_remove(struct mapped_mtd_info *map);
-
-// Generic functions
-extern int flash_jedec(struct mapped_mtd_info *map);
-extern int flash_erase(struct mtd_info *map, struct erase_info *instr);
-extern int flash_write(struct mtd_info *map, loff_t start, size_t len,
-		       size_t *retlen, const u_char *buf);
-extern int rom_read(struct mtd_info *map, loff_t start, size_t len,
-		    size_t *retlen, u_char *buf);
-extern int ram_write(struct mtd_info *map, loff_t start, size_t len,
-		     size_t *retlen, const u_char *buf);
-
-// Helpers
-extern int page_jump(struct mapped_mtd_info *map,unsigned long start,
-		     unsigned long len,unsigned long *buffer,
-		     unsigned long *size);
-extern void flash_chip_scan(struct mapped_mtd_info *map,unsigned long start,
-			    unsigned long len);
-
-#endif /* __MTD_FLASH_H__ */
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index a703b853e56a..ae5bfe3e10fb 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -1,5 +1,5 @@
 
-/* $Id: mtd.h,v 1.26 2000/10/30 17:18:04 sjhill Exp $ */
+/* $Id: mtd.h,v 1.33 2001/06/09 00:08:59 dwmw2 Exp $ */
 
 #ifndef __MTD_MTD_H__
 #define __MTD_MTD_H__
@@ -16,13 +16,13 @@
 #endif /* __KERNEL__ */
 
 struct erase_info_user {
-	unsigned long start;
-	unsigned long length;
+	u_int32_t start;
+	u_int32_t length;
 };
 
 struct mtd_oob_buf {
-	loff_t start;
-	ssize_t length;
+	u_int32_t start;
+	u_int32_t length;
 	unsigned char *ptr;
 };
 
@@ -68,13 +68,21 @@ struct mtd_oob_buf {
 
 struct mtd_info_user {
 	u_char type;
-	u_long flags;
-	u_long size;	 // Total size of the MTD
-	u_long erasesize;
-	u_long oobblock;  // Size of OOB blocks (e.g. 512)
-	u_long oobsize;   // Amount of OOB data per block (e.g. 16)
-        u_long ecctype;
-        u_long eccsize;
+	u_int32_t flags;
+	u_int32_t size;	 // Total size of the MTD
+	u_int32_t erasesize;
+	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;
+};
+
+struct region_info_user {
+	u_int32_t offset;		/* At which this region starts, 
+					 * from the beginning of the MTD */
+	u_int32_t erasesize;		/* For this region */
+	u_int32_t numblocks;		/* Number of blocks in this region */
+	u_int32_t regionindex;
 };
 
 #define MEMGETINFO              _IOR('M', 1, struct mtd_info_user)
@@ -83,11 +91,14 @@ struct mtd_info_user {
 #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)
 
 #ifndef __KERNEL__
 
 typedef struct mtd_info_user mtd_info_t;
 typedef struct erase_info_user erase_info_t;
+typedef struct region_info_user region_info_t;
 
 	/* User-space ioctl definitions */
 
@@ -103,8 +114,8 @@ typedef struct erase_info_user erase_info_t;
 
 struct erase_info {
 	struct mtd_info *mtd;
-	u_long addr;
-	u_long len;
+	u_int32_t addr;
+	u_int32_t len;
 	u_long time;
 	u_long retries;
 	u_int dev;
@@ -115,22 +126,40 @@ struct erase_info {
 	struct erase_info *next;
 };
 
+struct mtd_erase_region_info {
+	u_int32_t offset;			/* At which this region starts, from the beginning of the MTD */
+	u_int32_t erasesize;		/* For this region */
+	u_int32_t numblocks;		/* Number of blocks of erasesize in this region */
+};
 
 struct mtd_info {
 	u_char type;
-	u_long flags;
-	u_long size;	 // Total size of the MTD
-	u_long erasesize;
-	u_long oobblock;  // Size of OOB blocks (e.g. 512)
-	u_long oobsize;   // Amount of OOB data per block (e.g. 16)
-        u_long ecctype;
-        u_long eccsize;
+	u_int32_t flags;
+	u_int32_t size;	 // Total size of the MTD
+
+	/* "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;
+
+	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;
 
 	// Kernel-only stuff starts here.
 	char *name;
 	int index;
 
-	u_long bank_size;
+	/* Data for variable erase regions. If numeraseregions is zero,
+	 * it means that the whole device has erasesize as given above. 
+	 */
+	int numeraseregions;
+	struct mtd_erase_region_info *eraseregions; 
+
+	/* This really shouldn't be here. It can go away in 2.5 */
+	u_int32_t bank_size;
 
 	struct module *module;
 	int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
diff --git a/include/linux/mtd/nand_ecc.h b/include/linux/mtd/nand_ecc.h
new file mode 100644
index 000000000000..f3f1d7e0f6aa
--- /dev/null
+++ b/include/linux/mtd/nand_ecc.h
@@ -0,0 +1,28 @@
+/*
+ *  drivers/mtd/nand_ecc.h
+ *
+ *  Copyright (C) 2000 Steven J. Hill (sjhill@cotw.com)
+ *
+ * $Id: nand_ecc.h,v 1.1 2000/10/12 00:57:15 sjhill Exp $
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This file is the header for the ECC algorithm.
+ */
+
+/*
+ * Creates non-inverted ECC code from line parity
+ */
+void nand_trans_result(u_char reg2, u_char reg3, u_char *ecc_code);
+
+/*
+ * Calculate 3 byte ECC code for 256 byte block
+ */
+void nand_calculate_ecc (const u_char *dat, u_char *ecc_code);
+
+/*
+ * Detect and correct a 1 bit error for 256 byte block
+ */
+int nand_correct_data (u_char *dat, u_char *read_ecc, u_char *calc_ecc);
diff --git a/include/linux/mtd/nftl.h b/include/linux/mtd/nftl.h
index ae00ceb0ba2a..3483a8c4022d 100644
--- a/include/linux/mtd/nftl.h
+++ b/include/linux/mtd/nftl.h
@@ -2,7 +2,7 @@
 /* Defines for NAND Flash Translation Layer  */
 /* (c) 1999 Machine Vision Holdings, Inc.    */
 /* Author: David Woodhouse <dwmw2@mvhi.com>  */
-/* $Id: nftl.h,v 1.9 2000/11/07 05:48:49 ollie Exp $ */
+/* $Id: nftl.h,v 1.10 2000/12/29 00:25:38 dwmw2 Exp $ */
 
 #ifndef __MTD_NFTL_H__
 #define __MTD_NFTL_H__
@@ -115,6 +115,7 @@ int NFTL_formatblock(struct NFTLrecord *s, int block);
 
 #define MAX_NFTLS 16
 #define MAX_SECTORS_PER_UNIT 32
+#define NFTL_PARTN_BITS 4
 
 #endif /* __KERNEL__ */
 
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index a92023886008..1d3351cc1eca 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -5,7 +5,7 @@
  *
  * This code is GPL
  *
- * $Id: partitions.h,v 1.3 2000/11/10 23:35:12 nico Exp $
+ * $Id: partitions.h,v 1.6 2001/03/17 17:10:21 dwmw2 Exp $
  */
 
 #ifndef MTD_PARTITIONS_H
@@ -22,10 +22,11 @@
  *
  * For each partition, these fields are available:
  * name: string that will be used to label the partition's MTD device.
- * size: the partition size; if 0, the partition will extend to the end of the 
- * 	master MTD device.
- * offset: absolute starting position within the master MTD device; if 0,
- * 	partition will start where the previous one ended.
+ * size: the partition size; if defined as MTDPART_SIZ_FULL, the partition 
+ * 	will extend to the end of the master MTD device.
+ * offset: absolute starting position within the master MTD device; if 
+ * 	defined as MTDPART_OFS_APPEND, the partition will start where the 
+ * 	previous one ended.
  * mask_flags: contains flags that have to be masked (removed) from the 
  * 	master MTD flag set for the corresponding MTD partition.
  * 	For example, to force a read-only partition, simply adding 
@@ -37,11 +38,14 @@
 
 struct mtd_partition {
 	char *name;		/* identifier string */
-	u_long size;		/* partition size */
-	u_long offset;		/* offset within the master MTD space */
-	u_long mask_flags;	/* master MTD flags to mask out for this 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 */
 };
 
+#define MTDPART_OFS_APPEND	(-1)
+#define MTDPART_SIZ_FULL	(0)
+
 
 int add_mtd_partitions(struct mtd_info *, struct mtd_partition *, int);
 int del_mtd_partitions(struct mtd_info *);