MTD and JFFS2 update.

 - JFFS2 bugfixes and performance improvements
 - Support for 64-bit flash arrangements
 - Optimise for linear mappings of flash, without out-of-line access functions
 - New map drivers
 - Updated NAND flash support, new board drivers
 - Support for DiskOnChip Millennium Plus and INFTL translation layer
 - Clean up all translation layers with a single blkdev helper library.
 - Fix races in MTD device registration/deregistration
 - Add support for new flash chips
 - Clean up partition parsing code

More detailed comments in per-file changelogs.

drivers/mtd/Kconfig

-# $Id: Config.in,v 1.74 2002/04/23 13:52:14 mag Exp $
+# $Id: Kconfig,v 1.3 2003/05/28 11:02:23 dwmw2 Exp $
 
 menu "Memory Technology Devices (MTD)"
 
@@ -199,13 +199,28 @@ config NFTL
 	  not use it.
 
 config NFTL_RW
-	bool "Write support for NFTL (BETA)"
+	bool "Write support for NFTL"
 	depends on NFTL
 	help
-	  If you're lucky, this will actually work. Don't whinge if it
-	  doesn't.  Send mail to the MTD mailing list
-	  <linux-mtd@lists.infradead.org> if you want to help to make it more
-	  reliable.
+	  Support for writing to the NAND Flash Translation Layer, as used
+	  on the DiskOnChip.
+
+config INFTL
+	tristate "INFTL (Inverse NAND Flash Translation Layer) support"
+	depends on MTD
+	---help---
+	  This provides support for the Inverse NAND Flash Translation 
+	  Layer which is used on M-Systems' newer DiskOnChip devices. It
+	  uses a kind of pseudo-file system on a flash device to emulate
+	  a block device with 512-byte sectors, on top of which you put
+	  a 'normal' file system.
+
+	  You may find that the algorithms used in this code are patented
+	  unless you live in the Free World where software patents aren't
+	  legal - in the USA you are only permitted to use this on DiskOnChip
+	  hardware, although under the terms of the GPL you're obviously
+	  permitted to copy, modify and distribute the code as you wish. Just
+	  not use it.
 
 source "drivers/mtd/chips/Kconfig"
 

drivers/mtd/Makefile

 #
 # Makefile for the memory technology device drivers.
 #
-# Based on:
-# $Id: Makefile,v 1.66 2002/04/23 13:52:14 mag Exp $
-
-obj-y           += chips/ maps/ devices/ nand/
+# $Id: Makefile.common,v 1.2 2003/05/23 11:38:29 dwmw2 Exp $
 
 #                       *** BIG UGLY NOTE ***
 #
@@ -27,14 +24,18 @@ obj-$(CONFIG_MTD)		+= mtdcore.o
 obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
 obj-$(CONFIG_MTD_PARTITIONS)	+= mtdpart.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
-obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdline.o
+obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
 
 # 'Users' - code which presents functionality to userspace.
 obj-$(CONFIG_MTD_CHAR)		+= mtdchar.o
-obj-$(CONFIG_MTD_BLOCK)		+= mtdblock.o
-obj-$(CONFIG_MTD_BLOCK_RO)	+= mtdblock_ro.o
-obj-$(CONFIG_FTL)		+= ftl.o
-obj-$(CONFIG_NFTL)		+= nftl.o
+obj-$(CONFIG_MTD_BLOCK)		+= mtdblock.o mtd_blkdevs.o
+obj-$(CONFIG_MTD_BLOCK_RO)	+= mtdblock_ro.o mtd_blkdevs.o
+obj-$(CONFIG_FTL)		+= ftl.o mtd_blkdevs.o
+obj-$(CONFIG_NFTL)		+= nftl.o mtd_blkdevs.o
+obj-$(CONFIG_INFTL)		+= inftl.o mtd_blkdevs.o
 
 nftl-objs		:= nftlcore.o nftlmount.o
+inftl-objs		:= inftlcore.o inftlmount.o
+
+obj-y		+= chips/ maps/ devices/ nand/

drivers/mtd/afs.c

@@ -21,7 +21,7 @@
    This is access code for flashes using ARM's flash partitioning 
    standards.
 
-   $Id: afs.c,v 1.8 2002/05/04 08:49:09 rmk Exp $
+   $Id: afs.c,v 1.11 2003/05/16 17:08:24 dwmw2 Exp $
 
 ======================================================================*/
 
@@ -125,7 +125,9 @@ afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr)
 	return ret;
 }
 
-int parse_afs_partitions(struct mtd_info *mtd, struct mtd_partition **pparts)
+static int parse_afs_partitions(struct mtd_info *mtd, 
+                         struct mtd_partition **pparts,
+                         unsigned long origin)
 {
 	struct mtd_partition *parts;
 	u_int mask, off, idx, sz;
@@ -227,7 +229,25 @@ int parse_afs_partitions(struct mtd_info *mtd, struct mtd_partition **pparts)
 	return idx ? idx : ret;
 }
 
-EXPORT_SYMBOL(parse_afs_partitions);
+static struct mtd_part_parser afs_parser = {
+	.owner = THIS_MODULE,
+	.parse_fn = parse_afs_partitions,
+	.name = "afs",
+};
+
+static int __init afs_parser_init(void)
+{
+	return register_mtd_parser(&afs_parser);
+}
+
+static void __exit afs_parser_exit(void)
+{
+	deregister_mtd_parser(&afs_parser);
+}
+
+module_init(afs_parser_init);
+module_exit(afs_parser_exit);
+
 
 MODULE_AUTHOR("ARM Ltd");
 MODULE_DESCRIPTION("ARM Firmware Suite partition parser");

drivers/mtd/chips/Kconfig

-# drivers/mtd/chips/Config.in
-# $Id: Config.in,v 1.12 2001/09/23 15:35:21 dwmw2 Exp $
+# drivers/mtd/chips/Kconfig
+# $Id: Kconfig,v 1.2 2003/05/28 10:59:06 dwmw2 Exp $
 
 menu "RAM/ROM/Flash chip drivers"
 	depends on MTD!=n
@@ -15,7 +15,6 @@ config MTD_CFI
 	  option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
 	  for more information on CFI.
 
-#dep_tristate '  Detect non-CFI Intel-compatible flash chips' CONFIG_MTD_INTELPROBE $CONFIG_MTD
 config MTD_JEDECPROBE
 	tristate "Detect non-CFI AMD/JEDEC-compatible flash chips"
 	depends on MTD
@@ -145,7 +144,15 @@ config MTD_CFI_AMDSTD
 	  The Common Flash Interface defines a number of different command
 	  sets which a CFI-compliant chip may claim to implement. This code
 	  provides support for one of those command sets, used on chips 
-	  chips including the AMD Am29LV320.
+	  including the AMD Am29LV320.
+
+config MTD_CFI_STAA
+	tristate "Support for ST (Advanced Architecture) flash chips"
+	depends on MTD_GEN_PROBE
+	help
+	  The Common Flash Interface defines a number of different command
+	  sets which a CFI-compliant chip may claim to implement. This code
+	  provides support for one of those command sets.
 
 config MTD_RAM
 	tristate "Support for RAM chips in bus mapping"
@@ -177,10 +184,10 @@ config MTD_OBSOLETE_CHIPS
 	help
 	  This option does not enable any code directly, but will allow you to
 	  select some other chip drivers which are now considered obsolete,
-	  because the generic CONFIG_JEDEC_PROBE code above should now detect
+	  because the generic CONFIG_JEDECPROBE code above should now detect
 	  the chips which are supported by these drivers, and allow the generic
 	  CFI-compatible drivers to drive the chips. Say 'N' here unless you have
-	  already tried the CONFIG_JEDEC_PROBE method and reported its failure
+	  already tried the CONFIG_JEDECPROBE method and reported its failure
 	  to the MTD mailing list at <linux-mtd@lists.infradead.org>
 
 config MTD_AMDSTD
@@ -209,8 +216,7 @@ config MTD_JEDEC
 	  programming flash.  It is commonly used in older AMD chips.  It is
 	  only called JEDEC because the JEDEC association
 	  <http://www.jedec.org/> distributes the identification codes for the
-	  chips. WARNING!!!! This code does not compile and is incomplete as
-	  are the specific JEDEC devices drivers.
+	  chips.
 
 endmenu
 

drivers/mtd/chips/Makefile

 #
 # linux/drivers/chips/Makefile
 #
-# $Id: Makefile,v 1.7 2001/10/05 06:53:51 dwmw2 Exp $
+# $Id: Makefile.common,v 1.1 2003/05/21 15:00:01 dwmw2 Exp $
 
 #                       *** BIG UGLY NOTE ***
 #
@@ -13,10 +13,10 @@
 obj-$(CONFIG_MTD)		+= chipreg.o
 obj-$(CONFIG_MTD_AMDSTD)	+= amd_flash.o 
 obj-$(CONFIG_MTD_CFI)		+= cfi_probe.o
+obj-$(CONFIG_MTD_CFI_STAA)	+= cfi_cmdset_0020.o
 obj-$(CONFIG_MTD_CFI_AMDSTD)	+= cfi_cmdset_0002.o
 obj-$(CONFIG_MTD_CFI_INTELEXT)	+= cfi_cmdset_0001.o
 obj-$(CONFIG_MTD_GEN_PROBE)	+= gen_probe.o
-obj-$(CONFIG_MTD_INTELPROBE)	+= intel_probe.o
 obj-$(CONFIG_MTD_JEDEC)		+= jedec.o
 obj-$(CONFIG_MTD_JEDECPROBE)	+= jedec_probe.o
 obj-$(CONFIG_MTD_RAM)		+= map_ram.o

drivers/mtd/chips/amd_flash.c

@@ -3,7 +3,7 @@
  *
  * Author: Jonas Holmberg <jonas.holmberg@axis.com>
  *
- * $Id: amd_flash.c,v 1.15 2001/10/02 15:05:11 dwmw2 Exp $
+ * $Id: amd_flash.c,v 1.22 2003/05/28 13:47:19 dwmw2 Exp $
  *
  * Copyright (c) 2001 Axis Communications AB
  *
@@ -52,6 +52,7 @@
 
 /* Manufacturers */
 #define MANUFACTURER_AMD	0x0001
+#define MANUFACTURER_ATMEL	0x001F
 #define MANUFACTURER_FUJITSU	0x0004
 #define MANUFACTURER_ST		0x0020
 #define MANUFACTURER_SST	0x00BF
@@ -67,10 +68,14 @@
 #define AM29BDS323D     0x22D1
 #define AM29BDS643D	0x227E
 
+/* Atmel */
+#define AT49xV16x	0x00C0
+#define AT49xV16xT	0x00C2
 
 /* Fujitsu */
 #define MBM29LV160TE	0x22C4
 #define MBM29LV160BE	0x2249
+#define MBM29LV800BB	0x225B
 
 /* ST - www.st.com */
 #define M29W800T	0x00D7
@@ -135,11 +140,11 @@ static const char im_name[] = "amd_flash";
 static inline __u32 wide_read(struct map_info *map, __u32 addr)
 {
 	if (map->buswidth == 1) {
-		return map->read8(map, addr);
+		return map_read8(map, addr);
 	} else if (map->buswidth == 2) {
-		return map->read16(map, addr);
+		return map_read16(map, addr);
 	} else if (map->buswidth == 4) {
-		return map->read32(map, addr);
+		return map_read32(map, addr);
         }
 
 	return 0;
@@ -148,11 +153,11 @@ static inline __u32 wide_read(struct map_info *map, __u32 addr)
 static inline void wide_write(struct map_info *map, __u32 val, __u32 addr)
 {
 	if (map->buswidth == 1) {
-		map->write8(map, val, addr);
+		map_write8(map, val, addr);
 	} else if (map->buswidth == 2) {
-		map->write16(map, val, addr);
+		map_write16(map, val, addr);
 	} else if (map->buswidth == 4) {
-		map->write32(map, val, addr);
+		map_write32(map, val, addr);
 	}
 }
 
@@ -419,10 +424,7 @@ static int probe_new_chip(struct mtd_info *mtd, __u32 base,
 
 static struct mtd_info *amd_flash_probe(struct map_info *map)
 {
-	/* Keep this table on the stack so that it gets deallocated after the
-	 * probe is done.
-	 */
-	const struct amd_flash_info table[] = {
+	static const struct amd_flash_info table[] = {
 	{
 		.mfr_id = MANUFACTURER_AMD,
 		.dev_id = AM29LV160DT,
@@ -555,6 +557,18 @@ static struct mtd_info *amd_flash_probe(struct map_info *map)
 			{ .offset = 0x0F8000, .erasesize = 0x02000, .numblocks =  2 },
 			{ .offset = 0x0FC000, .erasesize = 0x04000, .numblocks =  1 }
 		}
+	}, {
+		.mfr_id = MANUFACTURER_FUJITSU,
+		.dev_id = MBM29LV800BB,
+		.name = "Fujitsu MBM29LV800BB",
+		.size = 0x00100000,
+		.numeraseregions = 4,
+		.regions = {
+			{ .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
+			{ .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
+			{ .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
+			{ .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
+		}
 	}, {
 		.mfr_id = MANUFACTURER_ST,
 		.dev_id = M29W800T,
@@ -613,6 +627,26 @@ static struct mtd_info *amd_flash_probe(struct map_info *map)
 			{ .offset = 0x600000, .erasesize = 0x10000, .numblocks = 31 },
 			{ .offset = 0x7f0000, .erasesize = 0x02000, .numblocks =  8 },
 		}
+	}, {
+		.mfr_id = MANUFACTURER_ATMEL,
+		.dev_id = AT49xV16x,
+		.name = "Atmel AT49xV16x",
+		.size = 0x00200000,
+		.numeraseregions = 2,
+		.regions = {
+			{ .offset = 0x000000, .erasesize = 0x02000, .numblocks =  8 },
+			{ .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
+		}
+	}, {
+		.mfr_id = MANUFACTURER_ATMEL,
+		.dev_id = AT49xV16xT,
+		.name = "Atmel AT49xV16xT",
+		.size = 0x00200000,
+		.numeraseregions = 2,
+		.regions = {
+			{ .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
+			{ .offset = 0x1F0000, .erasesize = 0x02000, .numblocks =  8 }
+		}
 	} 
 	};
 
@@ -785,7 +819,7 @@ static inline int read_one_chip(struct map_info *map, struct flchip *chip,
 
 	chip->state = FL_READY;
 
-	map->copy_from(map, buf, adr, len);
+	map_copy_from(map, buf, adr, len);
 
 	wake_up(&chip->wq);
 	spin_unlock_bh(chip->mutex);
@@ -947,7 +981,7 @@ static int amd_flash_write(struct mtd_info *mtd, loff_t to , size_t len,
 		u_char tmp_buf[4];
 		__u32 datum;
 
-		map->copy_from(map, tmp_buf,
+		map_copy_from(map, tmp_buf,
 			       bus_ofs + private->chips[chipnum].start,
 			       map->buswidth);
 		while (len && i < map->buswidth)
@@ -1020,7 +1054,7 @@ static int amd_flash_write(struct mtd_info *mtd, loff_t to , size_t len,
 		u_char tmp_buf[2];
 		__u32 datum;
 
-		map->copy_from(map, tmp_buf,
+		map_copy_from(map, tmp_buf,
 			       ofs + private->chips[chipnum].start,
 			       map->buswidth);
 		while (len--) {
@@ -1141,7 +1175,7 @@ static inline int erase_one_block(struct map_info *map, struct flchip *chip,
 		__u8 verify;
 
 		for (address = adr; address < (adr + size); address++) {
-			if ((verify = map->read8(map, address)) != 0xFF) {
+			if ((verify = map_read8(map, address)) != 0xFF) {
 				error = 1;
 				break;
 			}

drivers/mtd/chips/cfi_probe.c

 /* 
    Common Flash Interface probe code.
    (C) 2000 Red Hat. GPL'd.
-   $Id: cfi_probe.c,v 1.66 2001/10/02 15:05:12 dwmw2 Exp $
+   $Id: cfi_probe.c,v 1.71 2003/05/28 12:51:48 dwmw2 Exp $
 */
 
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
+#include <linux/init.h>
 #include <asm/io.h>
 #include <asm/byteorder.h>
 #include <linux/errno.h>
@@ -24,16 +25,13 @@
 static void print_cfi_ident(struct cfi_ident *);
 #endif
 
-int cfi_jedec_setup(struct cfi_private *p_cfi, int index);
-int cfi_jedec_lookup(int index, int mfr_id, int dev_id);
-
 static int cfi_probe_chip(struct map_info *map, __u32 base,
 			  struct flchip *chips, struct cfi_private *cfi);
 static int cfi_chip_setup(struct map_info *map, struct cfi_private *cfi);
 
 struct mtd_info *cfi_probe(struct map_info *map);
 
-/* check for QRY, or search for jedec id.
+/* check for QRY.
    in: interleave,type,mode
    ret: table index, <0 for error
  */
@@ -55,6 +53,18 @@ static int cfi_probe_chip(struct map_info *map, __u32 base,
 {
 	int i;
 	
+	if ((base + 0) >= map->size) {
+		printk(KERN_NOTICE
+			"Probe at base[0x00](0x%08lx) past the end of the map(0x%08lx)\n",
+			(unsigned long)base, map->size -1);
+		return 0;
+	}
+	if ((base + 0xff) >= map->size) {
+		printk(KERN_NOTICE
+			"Probe at base[0x55](0x%08lx) past the end of the map(0x%08lx)\n",
+			(unsigned long)base + 0x55, map->size -1);
+		return 0;
+	}
 	cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL);
 	cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL);
 
@@ -139,7 +149,7 @@ static int cfi_chip_setup(struct map_info *map,
 	
 	memset(cfi->cfiq,0,sizeof(struct cfi_ident));	
 	
-	cfi->cfi_mode = 1;
+	cfi->cfi_mode = CFI_MODE_CFI;
 	cfi->fast_prog=1;		/* CFI supports fast programming */
 	
 	/* Read the CFI info structure */
@@ -250,11 +260,11 @@ static void print_cfi_ident(struct cfi_ident *cfip)
 	else
 		printk("Full buffer write not supported\n");
 	
-	printk("Typical block erase timeout: %d s\n", 1<<cfip->BlockEraseTimeoutTyp);
-	printk("Maximum block erase timeout: %d s\n", (1<<cfip->BlockEraseTimeoutMax) * (1<<cfip->BlockEraseTimeoutTyp));
+	printk("Typical block erase timeout: %d ms\n", 1<<cfip->BlockEraseTimeoutTyp);
+	printk("Maximum block erase timeout: %d ms\n", (1<<cfip->BlockEraseTimeoutMax) * (1<<cfip->BlockEraseTimeoutTyp));
 	if (cfip->ChipEraseTimeoutTyp || cfip->ChipEraseTimeoutMax) {
-		printk("Typical chip erase timeout: %d s\n", 1<<cfip->ChipEraseTimeoutTyp); 
-		printk("Maximum chip erase timeout: %d s\n", (1<<cfip->ChipEraseTimeoutMax) * (1<<cfip->ChipEraseTimeoutTyp));
+		printk("Typical chip erase timeout: %d ms\n", 1<<cfip->ChipEraseTimeoutTyp); 
+		printk("Maximum chip erase timeout: %d ms\n", (1<<cfip->ChipEraseTimeoutMax) * (1<<cfip->ChipEraseTimeoutTyp));
 	}
 	else
 		printk("Chip erase not supported\n");

drivers/mtd/chips/chipreg.c

 /*
- * $Id: chipreg.c,v 1.12 2001/10/02 15:29:53 dwmw2 Exp $
+ * $Id: chipreg.c,v 1.15 2003/05/21 15:15:05 dwmw2 Exp $
  *
  * Registration for chip drivers
  *
@@ -7,10 +7,13 @@
 
 #include <linux/kernel.h>
 #include <linux/config.h>
+#include <linux/module.h>
 #include <linux/kmod.h>
 #include <linux/spinlock.h>
-#include <linux/mtd/compatmac.h>
+#include <linux/slab.h>
 #include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/compatmac.h>
 
 spinlock_t chip_drvs_lock = SPIN_LOCK_UNLOCKED;
 static LIST_HEAD(chip_drvs_list);
@@ -29,7 +32,7 @@ void unregister_mtd_chip_driver(struct mtd_chip_driver *drv)
 	spin_unlock(&chip_drvs_lock);
 }
 
-static struct mtd_chip_driver *get_mtd_chip_driver (char *name)
+static struct mtd_chip_driver *get_mtd_chip_driver (const char *name)
 {
 	struct list_head *pos;
 	struct mtd_chip_driver *ret = NULL, *this;
@@ -44,10 +47,8 @@ static struct mtd_chip_driver *get_mtd_chip_driver (char *name)
 			break;
 		}
 	}
-	if (ret && !try_module_get(ret->module)) {
-		/* Eep. Failed. */
+	if (ret && !try_module_get(ret->module))
 		ret = NULL;
-	}
 
 	spin_unlock(&chip_drvs_lock);
 
@@ -57,7 +58,7 @@ static struct mtd_chip_driver *get_mtd_chip_driver (char *name)
 	/* Hide all the horrid details, like some silly person taking
 	   get_module_symbol() away from us, from the caller. */
 
-struct mtd_info *do_map_probe(char *name, struct map_info *map)
+struct mtd_info *do_map_probe(const char *name, struct map_info *map)
 {
 	struct mtd_chip_driver *drv;
 	struct mtd_info *ret;
@@ -84,10 +85,26 @@ struct mtd_info *do_map_probe(char *name, struct map_info *map)
 	
 	return NULL;
 }
+/*
+ * Destroy an MTD device which was created for a map device.
+ * Make sure the MTD device is already unregistered before calling this
+ */
+void map_destroy(struct mtd_info *mtd)
+{
+	struct map_info *map = mtd->priv;
+
+	if (map->fldrv->destroy)
+		map->fldrv->destroy(mtd);
+
+	module_put(map->fldrv->module);
+
+	kfree(mtd);
+}
 
 EXPORT_SYMBOL(register_mtd_chip_driver);
 EXPORT_SYMBOL(unregister_mtd_chip_driver);
 EXPORT_SYMBOL(do_map_probe);
+EXPORT_SYMBOL(map_destroy);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");

drivers/mtd/chips/gen_probe.c

@@ -2,13 +2,16 @@
  * Routines common to all CFI-type probes.
  * (C) 2001, 2001 Red Hat, Inc.
  * GPL'd
- * $Id: gen_probe.c,v 1.5 2001/10/02 15:05:12 dwmw2 Exp $
+ * $Id: gen_probe.c,v 1.11 2003/05/21 15:15:05 dwmw2 Exp $
  */
 
 #include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/cfi.h>
+#include <linux/mtd/mtd.h>
 #include <linux/mtd/gen_probe.h>
 
 static struct mtd_info *check_cmd_set(struct map_info *, int);
@@ -38,7 +41,7 @@ struct mtd_info *mtd_do_chip_probe(struct map_info *map, struct chip_probe *cp)
 	if (mtd)
 		return mtd;
 
-	printk(KERN_WARNING"cfi_probe: No supported Vendor Command Set found\n");
+	printk(KERN_WARNING"gen_probe: No supported Vendor Command Set found\n");
 	
 	kfree(cfi->cfiq);
 	kfree(cfi);
@@ -57,6 +60,7 @@ struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chip_probe
 	int i;
 
 	memset(&cfi, 0, sizeof(cfi));
+	memset(&chip[0], 0, sizeof(chip));
 
 	/* Call the probetype-specific code with all permutations of 
 	   interleave and device type, etc. */
@@ -106,6 +110,12 @@ struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chip_probe
 	 * Now probe for other chips, checking sensibly for aliases while
 	 * we're at it. The new_chip probe above should have let the first
 	 * chip in read mode.
+	 *
+	 * NOTE: Here, we're checking if there is room for another chip
+	 *       the same size within the mapping. Therefore, 
+	 *       base + chipsize <= map->size is the correct thing to do, 
+	 *       because, base + chipsize would be the  _first_ byte of the
+	 *       next chip, not the one we're currently pondering.
 	 */
 
 	for (base = (1<<cfi.chipshift); base + (1<<cfi.chipshift) <= map->size;
@@ -224,6 +234,41 @@ static int genprobe_new_chip(struct map_info *map, struct chip_probe *cp,
 		break;
 #endif /* CFIDEV_BUSWIDTH_4 */
 
+#ifdef CFIDEV_BUSWIDTH_8
+	case CFIDEV_BUSWIDTH_8:
+#if defined(CFIDEV_INTERLEAVE_2) && defined(SOMEONE_ACTUALLY_MAKES_THESE)
+                cfi->interleave = CFIDEV_INTERLEAVE_2;
+
+                cfi->device_type = CFI_DEVICETYPE_X32;
+		if (cp->probe_chip(map, 0, NULL, cfi))
+			return 1;
+#endif /* CFIDEV_INTERLEAVE_2 */
+#ifdef CFIDEV_INTERLEAVE_4
+		cfi->interleave = CFIDEV_INTERLEAVE_4;
+
+#ifdef SOMEONE_ACTUALLY_MAKES_THESE
+		cfi->device_type = CFI_DEVICETYPE_X32;
+		if (cp->probe_chip(map, 0, NULL, cfi))
+			return 1;
+#endif
+		cfi->device_type = CFI_DEVICETYPE_X16;
+		if (cp->probe_chip(map, 0, NULL, cfi))
+			return 1;
+#endif /* CFIDEV_INTERLEAVE_4 */
+#ifdef CFIDEV_INTERLEAVE_8
+		cfi->interleave = CFIDEV_INTERLEAVE_8;
+
+		cfi->device_type = CFI_DEVICETYPE_X16;
+		if (cp->probe_chip(map, 0, NULL, cfi))
+			return 1;
+
+		cfi->device_type = CFI_DEVICETYPE_X8;
+		if (cp->probe_chip(map, 0, NULL, cfi))
+			return 1;
+#endif /* CFIDEV_INTERLEAVE_8 */
+		break;
+#endif /* CFIDEV_BUSWIDTH_8 */
+
 	default:
 		printk(KERN_WARNING "genprobe_new_chip called with unsupported buswidth %d\n", map->buswidth);
 		return 0;
@@ -288,6 +333,10 @@ static struct mtd_info *check_cmd_set(struct map_info *map, int primary)
 #ifdef CONFIG_MTD_CFI_AMDSTD
 	case 0x0002:
 		return cfi_cmdset_0002(map, primary);
+#endif
+#ifdef CONFIG_MTD_CFI_STAA
+        case 0x0020:
+		return cfi_cmdset_0020(map, primary);
 #endif
 	}
 

drivers/mtd/chips/map_absent.c

 /*
  * Common code to handle absent "placeholder" devices
  * Copyright 2001 Resilience Corporation <ebrower@resilience.com>
- * $Id: map_absent.c,v 1.2 2001/10/02 15:05:12 dwmw2 Exp $
+ * $Id: map_absent.c,v 1.4 2003/05/28 12:51:49 dwmw2 Exp $
  *
  * This map driver is used to allocate "placeholder" MTD
  * devices on systems that have socketed/removable media. 
@@ -23,9 +23,10 @@
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-
+#include <linux/init.h>
+#include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
-
+#include <linux/mtd/compatmac.h>
 
 static int map_absent_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int map_absent_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
@@ -65,7 +66,7 @@ static struct mtd_info *map_absent_probe(struct map_info *map)
 	mtd->flags 	= 0;
 	mtd->erasesize = PAGE_SIZE;
 
-	MOD_INC_USE_COUNT;
+	__module_get(THIS_MODULE);
 	return mtd;
 }
 

drivers/mtd/chips/map_rom.c

 /*
  * Common code to handle map devices which are simple ROM
  * (C) 2000 Red Hat. GPL'd.
- * $Id: map_rom.c,v 1.17 2001/10/02 15:05:12 dwmw2 Exp $
+ * $Id: map_rom.c,v 1.20 2003/05/28 12:51:49 dwmw2 Exp $
  */
 
 #include <linux/version.h>
@@ -12,8 +12,10 @@
 #include <asm/byteorder.h>
 #include <linux/errno.h>
 #include <linux/slab.h>
-
+#include <linux/init.h>
+#include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
+#include <linux/mtd/compatmac.h>
 
 static int maprom_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
@@ -49,7 +51,7 @@ struct mtd_info *map_rom_probe(struct map_info *map)
  	while(mtd->size & (mtd->erasesize - 1))
 		mtd->erasesize >>= 1;
 
-	MOD_INC_USE_COUNT;
+	__module_get(THIS_MODULE);
 	return mtd;
 }
 
@@ -58,7 +60,7 @@ static int maprom_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *r
 {
 	struct map_info *map = (struct map_info *)mtd->priv;
 
-	map->copy_from(map, buf, from, len);
+	map_copy_from(map, buf, from, len);
 	*retlen = len;
 	return 0;
 }