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

* git://git.infradead.org/mtd-2.6: (63 commits)
  mtd: OneNAND: Allow setting of boundary information when built as module
  jffs2: leaking jffs2_summary in function jffs2_scan_medium
  mtd: nand: Fix memory leak on txx9ndfmc probe failure.
  mtd: orion_nand: use burst reads with double word accesses
  mtd/nand: s3c6400 support for s3c2410 driver
  [MTD] [NAND] S3C2410: Use DIV_ROUND_UP
  [MTD] [NAND] S3C2410: Deal with unaligned lengths in S3C2440 buffer read/write
  [MTD] [NAND] S3C2410: Allow the machine code to get the BBT table from NAND
  [MTD] [NAND] S3C2410: Added a kerneldoc for s3c2410_nand_set
  mtd: physmap_of: Add multiple regions and concatenation support
  mtd: nand: max_retries off by one in mxc_nand
  mtd: nand: s3c2410_nand_setrate(): use correct macros for 2412/2440
  mtd: onenand: add bbt_wait & unlock_all as replaceable for some platform
  mtd: Flex-OneNAND support
  mtd: nand: add OMAP2/OMAP3 NAND driver
  mtd: maps: Blackfin async: fix memory leaks in probe/remove funcs
  mtd: uclinux: mark local stuff static
  mtd: uclinux: do not allow to be built as a module
  mtd: uclinux: allow systems to override map addr/size
  mtd: blackfin NFC: fix hang when using NAND on BF527-EZKITs
  ...

49 files changed, 3133 insertions, 827 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
new file mode 100644
index 00000000000..4d55a188898
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -0,0 +1,125 @@
+What:		/sys/class/mtd/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The mtd/ class subdirectory belongs to the MTD subsystem
+		(MTD core).
+
+What:		/sys/class/mtd/mtdX/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		The /sys/class/mtd/mtd{0,1,2,3,...} directories correspond
+		to each /dev/mtdX character device.  These may represent
+		physical/simulated flash devices, partitions on a flash
+		device, or concatenated flash devices.  They exist regardless
+		of whether CONFIG_MTD_CHAR is actually enabled.
+
+What:		/sys/class/mtd/mtdXro/
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		These directories provide the corresponding read-only device
+		nodes for /sys/class/mtd/mtdX/ .  They are only created
+		(for the benefit of udev) if CONFIG_MTD_CHAR is enabled.
+
+What:		/sys/class/mtd/mtdX/dev
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Major and minor numbers of the character device corresponding
+		to this MTD device (in <major>:<minor> format).  This is the
+		read-write device so <minor> will be even.
+
+What:		/sys/class/mtd/mtdXro/dev
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Major and minor numbers of the character device corresponding
+		to the read-only variant of thie MTD device (in
+		<major>:<minor> format).  In this case <minor> will be odd.
+
+What:		/sys/class/mtd/mtdX/erasesize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		"Major" erase size for the device.  If numeraseregions is
+		zero, this is the eraseblock size for the entire device.
+		Otherwise, the MEMGETREGIONCOUNT/MEMGETREGIONINFO ioctls
+		can be used to determine the actual eraseblock layout.
+
+What:		/sys/class/mtd/mtdX/flags
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		A hexadecimal value representing the device flags, ORed
+		together:
+
+		0x0400: MTD_WRITEABLE - device is writable
+		0x0800: MTD_BIT_WRITEABLE - single bits can be flipped
+		0x1000: MTD_NO_ERASE - no erase necessary
+		0x2000: MTD_POWERUP_LOCK - always locked after reset
+
+What:		/sys/class/mtd/mtdX/name
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		A human-readable ASCII name for the device or partition.
+		This will match the name in /proc/mtd .
+
+What:		/sys/class/mtd/mtdX/numeraseregions
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		For devices that have variable eraseblock sizes, this
+		provides the total number of erase regions.  Otherwise,
+		it will read back as zero.
+
+What:		/sys/class/mtd/mtdX/oobsize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Number of OOB bytes per page.
+
+What:		/sys/class/mtd/mtdX/size
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Total size of the device/partition, in bytes.
+
+What:		/sys/class/mtd/mtdX/type
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		One of the following ASCII strings, representing the device
+		type:
+
+		absent, ram, rom, nor, nand, dataflash, ubi, unknown
+
+What:		/sys/class/mtd/mtdX/writesize
+Date:		April 2009
+KernelVersion:	2.6.29
+Contact:	linux-mtd@lists.infradead.org
+Description:
+		Minimal writable flash unit size.  This will always be
+		a positive integer.
+
+		In the case of NOR flash it is 1 (even though individual
+		bits can be cleared).
+
+		In the case of NAND flash it is one NAND page (or a
+		half page, or a quarter page).
+
+		In the case of ECC NOR, it is the ECC block size.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 5092a2be83c..54ebf100e4e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1431,6 +1431,16 @@ and is between 256 and 4096 characters. It is defined in the file
 	mtdparts=	[MTD]
 			See drivers/mtd/cmdlinepart.c.
 
+	onenand.bdry=	[HW,MTD] Flex-OneNAND Boundary Configuration
+
+			Format: [die0_boundary][,die0_lock][,die1_boundary][,die1_lock]
+
+			boundary - index of last SLC block on Flex-OneNAND.
+				   The remaining blocks are configured as MLC blocks.
+			lock	 - Configure if Flex-OneNAND boundary should be locked.
+				   Once locked, the boundary cannot be changed.
+				   1 indicates lock status, 0 indicates unlock status.
+
 	mtdset=		[ARM]
 			ARM/S3C2412 JIVE boot control
 
diff --git a/MAINTAINERS b/MAINTAINERS
index cf5a46ef6b3..02f6f78b561 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3252,7 +3252,6 @@ W:	http://www.linux-mtd.infradead.org/doc/jffs2.html
 S:	Maintained
 F:	fs/jffs2/
 F:	include/linux/jffs2.h
-F:	include/mtd/jffs2-user.h
 
 JOURNALLING LAYER FOR BLOCK DEVICES (JBD)
 P:	Stephen Tweedie
diff --git a/arch/arm/mach-davinci/include/mach/nand.h b/arch/arm/mach-davinci/include/mach/nand.h
index aa482841270..b520c4b5678 100644
--- a/arch/arm/mach-davinci/include/mach/nand.h
+++ b/arch/arm/mach-davinci/include/mach/nand.h
@@ -68,10 +68,14 @@ struct davinci_nand_pdata {		/* platform_data */
 
 	/* none  == NAND_ECC_NONE (strongly *not* advised!!)
 	 * soft  == NAND_ECC_SOFT
-	 * 1-bit == NAND_ECC_HW
-	 * 4-bit == NAND_ECC_HW_SYNDROME (not on all chips)
+	 * else  == NAND_ECC_HW, according to ecc_bits
+	 *
+	 * All DaVinci-family chips support 1-bit hardware ECC.
+	 * Newer ones also support 4-bit ECC, but are awkward
+	 * using it with large page chips.
 	 */
 	nand_ecc_modes_t	ecc_mode;
+	u8			ecc_bits;
 
 	/* e.g. NAND_BUSWIDTH_16 or NAND_USE_FLASH_BBT */
 	unsigned		options;
diff --git a/arch/arm/plat-s3c/include/plat/nand.h b/arch/arm/plat-s3c/include/plat/nand.h
index f4dcd14af05..18f958801e6 100644
--- a/arch/arm/plat-s3c/include/plat/nand.h
+++ b/arch/arm/plat-s3c/include/plat/nand.h
@@ -10,19 +10,26 @@
  * published by the Free Software Foundation.
 */
 
-/* struct s3c2410_nand_set
+/**
+ * struct s3c2410_nand_set - define a set of one or more nand chips
+ * @disable_ecc:	Entirely disable ECC - Dangerous
+ * @flash_bbt: 		Openmoko u-boot can create a Bad Block Table
+ *			Setting this flag will allow the kernel to
+ *			look for it at boot time and also skip the NAND
+ *			scan.
+ * @nr_chips:		Number of chips in this set
+ * @nr_partitions:	Number of partitions pointed to by @partitions
+ * @name:		Name of set (optional)
+ * @nr_map:		Map for low-layer logical to physical chip numbers (option)
+ * @partitions:		The mtd partition list
  *
- * define an set of one or more nand chips registered with an unique mtd
- *
- * nr_chips	 = number of chips in this set
- * nr_partitions = number of partitions pointed to be partitoons (or zero)
- * name		 = name of set (optional)
- * nr_map	 = map for low-layer logical to physical chip numbers (option)
- * partitions	 = mtd partition list
-*/
-
+ * define a set of one or more nand chips registered with an unique mtd. Also
+ * allows to pass flag to the underlying NAND layer. 'disable_ecc' will trigger
+ * a warning at boot time.
+ */
 struct s3c2410_nand_set {
-	unsigned int		disable_ecc : 1;
+	unsigned int		disable_ecc:1;
+	unsigned int		flash_bbt:1;
 
 	int			nr_chips;
 	int			nr_partitions;
@@ -39,7 +46,7 @@ struct s3c2410_platform_nand {
 	int	twrph0;	/* active time for nWE/nOE */
 	int	twrph1;	/* time for release CLE/ALE from nWE/nOE inactive */
 
-	unsigned int	ignore_unset_ecc : 1;
+	unsigned int	ignore_unset_ecc:1;
 
 	int			nr_sets;
 	struct s3c2410_nand_set *sets;
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
index c240454fd11..8664feebc93 100644
--- a/drivers/mtd/chips/cfi_cmdset_0001.c
+++ b/drivers/mtd/chips/cfi_cmdset_0001.c
@@ -46,6 +46,7 @@
 #define MANUFACTURER_INTEL	0x0089
 #define I82802AB	0x00ad
 #define I82802AC	0x00ac
+#define PF38F4476	0x881c
 #define MANUFACTURER_ST         0x0020
 #define M50LPW080       0x002F
 #define M50FLW080A	0x0080
@@ -315,10 +316,20 @@ static struct cfi_fixup fixup_table[] = {
 	{ 0, 0, NULL, NULL }
 };
 
+static void cfi_fixup_major_minor(struct cfi_private *cfi,
+						struct cfi_pri_intelext *extp)
+{
+	if (cfi->mfr == MANUFACTURER_INTEL &&
+			cfi->id == PF38F4476 && extp->MinorVersion == '3')
+		extp->MinorVersion = '1';
+}
+
 static inline struct cfi_pri_intelext *
 read_pri_intelext(struct map_info *map, __u16 adr)
 {
+	struct cfi_private *cfi = map->fldrv_priv;
 	struct cfi_pri_intelext *extp;
+	unsigned int extra_size = 0;
 	unsigned int extp_size = sizeof(*extp);
 
  again:
@@ -326,6 +337,8 @@ read_pri_intelext(struct map_info *map, __u16 adr)
 	if (!extp)
 		return NULL;
 
+	cfi_fixup_major_minor(cfi, extp);
+
 	if (extp->MajorVersion != '1' ||
 	    (extp->MinorVersion < '0' || extp->MinorVersion > '5')) {
 		printk(KERN_ERR "  Unknown Intel/Sharp Extended Query "
@@ -340,19 +353,24 @@ read_pri_intelext(struct map_info *map, __u16 adr)
 	extp->BlkStatusRegMask = le16_to_cpu(extp->BlkStatusRegMask);
 	extp->ProtRegAddr = le16_to_cpu(extp->ProtRegAddr);
 
-	if (extp->MajorVersion == '1' && extp->MinorVersion >= '3') {
-		unsigned int extra_size = 0;
-		int nb_parts, i;
+	if (extp->MinorVersion >= '0') {
+		extra_size = 0;
 
 		/* Protection Register info */
 		extra_size += (extp->NumProtectionFields - 1) *
 			      sizeof(struct cfi_intelext_otpinfo);
+	}
 
+	if (extp->MinorVersion >= '1') {
 		/* Burst Read info */
 		extra_size += 2;
 		if (extp_size < sizeof(*extp) + extra_size)
 			goto need_more;
-		extra_size += extp->extra[extra_size-1];
+		extra_size += extp->extra[extra_size - 1];
+	}
+
+	if (extp->MinorVersion >= '3') {
+		int nb_parts, i;
 
 		/* Number of hardware-partitions */
 		extra_size += 1;
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index e824b9b9b05..ccc4cfc7e4b 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -166,6 +166,7 @@
 #define SST39LF040	0x00D7
 #define SST39SF010A	0x00B5
 #define SST39SF020A	0x00B6
+#define SST39SF040	0x00B7
 #define SST49LF004B	0x0060
 #define SST49LF040B	0x0050
 #define SST49LF008A	0x005a
@@ -1393,6 +1394,18 @@ static const struct amd_flash_info jedec_table[] = {
 		}
 	}, {
 		.mfr_id		= MANUFACTURER_SST,
+		.dev_id		= SST39SF040,
+		.name		= "SST 39SF040",
+		.devtypes	= CFI_DEVICETYPE_X8,
+		.uaddr		= MTD_UADDR_0x5555_0x2AAA,
+		.dev_size	= SIZE_512KiB,
+		.cmd_set	= P_ID_AMD_STD,
+		.nr_regions	= 1,
+		.regions	= {
+			ERASEINFO(0x01000,128),
+		}
+	}, {
+		.mfr_id		= MANUFACTURER_SST,
 		.dev_id		= SST49LF040B,
 		.name		= "SST 49LF040B",
 		.devtypes	= CFI_DEVICETYPE_X8,
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index cc6369ea67d..59c46126a5c 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -500,6 +500,9 @@ static struct flash_info __devinitdata m25p_data [] = {
 	{ "at26df161a", 0x1f4601, 0, 64 * 1024, 32, SECT_4K, },
 	{ "at26df321",  0x1f4701, 0, 64 * 1024, 64, SECT_4K, },
 
+	/* Macronix */
+	{ "mx25l12805d", 0xc22018, 0, 64 * 1024, 256, },
+
 	/* Spansion -- single (large) sector size only, at least
 	 * for the chips listed here (without boot sectors).
 	 */
@@ -528,6 +531,7 @@ static struct flash_info __devinitdata m25p_data [] = {
 	{ "m25p64",  0x202017,  0, 64 * 1024, 128, },
 	{ "m25p128", 0x202018, 0, 256 * 1024, 64, },
 
+	{ "m45pe10", 0x204011,  0, 64 * 1024, 2, },
 	{ "m45pe80", 0x204014,  0, 64 * 1024, 16, },
 	{ "m45pe16", 0x204015,  0, 64 * 1024, 32, },
 
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 82923bd2d9c..0b98654d8ee 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -105,15 +105,6 @@ config MSP_FLASH_MAP_LIMIT
 	default "0x02000000"
 	depends on MSP_FLASH_MAP_LIMIT_32M
 
-config MTD_PMC_MSP_RAMROOT
-	tristate "Embedded RAM block device for root on PMC-Sierra MSP"
-	depends on PMC_MSP_EMBEDDED_ROOTFS && \
-			(MTD_BLOCK || MTD_BLOCK_RO) && \
-			MTD_RAM
-	help
-	  This provides support for the embedded root file system
-          on PMC MSP devices.  This memory is mapped as a MTD block device.
-
 config MTD_SUN_UFLASH
 	tristate "Sun Microsystems userflash support"
 	depends on SPARC && MTD_CFI && PCI
@@ -270,7 +261,7 @@ config MTD_ALCHEMY
 
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"
-	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
+	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
 	help
 	  MTD map driver for SSV DIL/Net PC Boards "DNP" and "ADNP".
 	  For details, see <http://www.ssv-embedded.de/ssv/pc104/p169.htm>
@@ -501,7 +492,7 @@ config MTD_BFIN_ASYNC
 	  If compiled as a module, it will be called bfin-async-flash.
 
 config MTD_UCLINUX
-	tristate "Generic uClinux RAM/ROM filesystem support"
+	bool "Generic uClinux RAM/ROM filesystem support"
 	depends on MTD_PARTITIONS && MTD_RAM && !MMU
 	help
 	  Map driver to support image based filesystems for uClinux.
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 2dbc1bec848..8bae7f9850c 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -25,7 +25,6 @@ obj-$(CONFIG_MTD_OCTAGON)	+= octagon-5066.o
 obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o
 obj-$(CONFIG_MTD_PHYSMAP_OF)	+= physmap_of.o
 obj-$(CONFIG_MTD_PMC_MSP_EVM)   += pmcmsp-flash.o
-obj-$(CONFIG_MTD_PMC_MSP_RAMROOT)+= pmcmsp-ramroot.o
 obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o
 obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o
 obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 576611f605d..365c77b1b87 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -40,6 +40,9 @@ struct async_state {
 	uint32_t flash_ambctl0, flash_ambctl1;
 	uint32_t save_ambctl0, save_ambctl1;
 	unsigned long irq_flags;
+#ifdef CONFIG_MTD_PARTITIONS
+	struct mtd_partition *parts;
+#endif
 };
 
 static void switch_to_flash(struct async_state *state)
@@ -170,6 +173,7 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
 	if (ret > 0) {
 		pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n");
 		add_mtd_partitions(state->mtd, pdata->parts, ret);
+		state->parts = pdata->parts;
 
 	} else if (pdata->nr_parts) {
 		pr_devinit(KERN_NOTICE DRIVER_NAME ": Using board partition definition\n");
@@ -193,6 +197,7 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev)
 	gpio_free(state->enet_flash_pin);
 #ifdef CONFIG_MTD_PARTITIONS
 	del_mtd_partitions(state->mtd);
+	kfree(state->parts);
 #endif
 	map_destroy(state->mtd);
 	kfree(state);
diff --git a/drivers/mtd/maps/integrator-flash.c b/drivers/mtd/maps/integrator-flash.c
index c9681a339a5..b08a798ee25 100644
--- a/drivers/mtd/maps/integrator-flash.c
+++ b/drivers/mtd/maps/integrator-flash.c
@@ -36,27 +36,33 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
 
 #include <asm/mach/flash.h>
 #include <mach/hardware.h>
 #include <asm/system.h>
 
-#ifdef CONFIG_ARCH_P720T
-#define FLASH_BASE		(0x04000000)
-#define FLASH_SIZE		(64*1024*1024)
-#endif
+#define SUBDEV_NAME_SIZE	(BUS_ID_SIZE + 2)
 
-struct armflash_info {
+struct armflash_subdev_info {
+	char			name[SUBDEV_NAME_SIZE];
+	struct mtd_info		*mtd;
+	struct map_info		map;
 	struct flash_platform_data *plat;
+};
+
+struct armflash_info {
 	struct resource		*res;
 	struct mtd_partition	*parts;
 	struct mtd_info		*mtd;
-	struct map_info		map;
+	int			nr_subdev;
+	struct armflash_subdev_info subdev[0];
 };
 
 static void armflash_set_vpp(struct map_info *map, int on)
 {
-	struct armflash_info *info = container_of(map, struct armflash_info, map);
+	struct armflash_subdev_info *info =
+		container_of(map, struct armflash_subdev_info, map);
 
 	if (info->plat && info->plat->set_vpp)
 		info->plat->set_vpp(on);
@@ -64,32 +70,17 @@ static void armflash_set_vpp(struct map_info *map, int on)
 
 static const char *probes[] = { "cmdlinepart", "RedBoot", "afs", NULL };
 
-static int armflash_probe(struct platform_device *dev)
+static int armflash_subdev_probe(struct armflash_subdev_info *subdev,
+				 struct resource *res)
 {
-	struct flash_platform_data *plat = dev->dev.platform_data;
-	struct resource *res = dev->resource;
-	unsigned int size = res->end - res->start + 1;
-	struct armflash_info *info;
-	int err;
+	struct flash_platform_data *plat = subdev->plat;
+	resource_size_t size = res->end - res->start + 1;
 	void __iomem *base;
+	int err = 0;
 
-	info = kzalloc(sizeof(struct armflash_info), GFP_KERNEL);
-	if (!info) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	info->plat = plat;
-	if (plat && plat->init) {
-		err = plat->init();
-		if (err)
-			goto no_resource;
-	}
-
-	info->res = request_mem_region(res->start, size, "armflash");
-	if (!info->res) {
+	if (!request_mem_region(res->start, size, subdev->name)) {
 		err = -EBUSY;
-		goto no_resource;
+		goto out;
 	}
 
 	base = ioremap(res->start, size);
@@ -101,27 +92,132 @@ static int armflash_probe(struct platform_device *dev)
 	/*
 	 * look for CFI based flash parts fitted to this board
 	 */
-	info->map.size		= size;
-	info->map.bankwidth	= plat->width;
-	info->map.phys		= res->start;
-	info->map.virt		= base;
-	info->map.name		= dev_name(&dev->dev);
-	info->map.set_vpp	= armflash_set_vpp;
+	subdev->map.size	= size;
+	subdev->map.bankwidth	= plat->width;
+	subdev->map.phys	= res->start;
+	subdev->map.virt	= base;
+	subdev->map.name	= subdev->name;
+	subdev->map.set_vpp	= armflash_set_vpp;
 
-	simple_map_init(&info->map);
+	simple_map_init(&subdev->map);
 
 	/*
 	 * Also, the CFI layer automatically works out what size
 	 * of chips we have, and does the necessary identification
 	 * for us automatically.
 	 */
-	info->mtd = do_map_probe(plat->map_name, &info->map);
-	if (!info->mtd) {
+	subdev->mtd = do_map_probe(plat->map_name, &subdev->map);
+	if (!subdev->mtd) {
 		err = -ENXIO;
 		goto no_device;
 	}
 
-	info->mtd->owner = THIS_MODULE;
+	subdev->mtd->owner = THIS_MODULE;
+
+	/* Successful? */
+	if (err == 0)
+		return err;
+
+	if (subdev->mtd)
+		map_destroy(subdev->mtd);
+ no_device:
+	iounmap(base);
+ no_mem:
+	release_mem_region(res->start, size);
+ out:
+	return err;
+}
+
+static void armflash_subdev_remove(struct armflash_subdev_info *subdev)
+{
+	if (subdev->mtd)
+		map_destroy(subdev->mtd);
+	if (subdev->map.virt)
+		iounmap(subdev->map.virt);
+	release_mem_region(subdev->map.phys, subdev->map.size);
+}
+
+static int armflash_probe(struct platform_device *dev)
+{
+	struct flash_platform_data *plat = dev->dev.platform_data;
+	unsigned int size;
+	struct armflash_info *info;
+	int i, nr, err;
+
+	/* Count the number of devices */
+	for (nr = 0; ; nr++)
+		if (!platform_get_resource(dev, IORESOURCE_MEM, nr))
+			break;
+	if (nr == 0) {
+		err = -ENODEV;
+		goto out;
+	}
+
+	size = sizeof(struct armflash_info) +
+		sizeof(struct armflash_subdev_info) * nr;
+	info = kzalloc(size, GFP_KERNEL);
+	if (!info) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	if (plat && plat->init) {
+		err = plat->init();
+		if (err)
+			goto no_resource;
+	}
+
+	for (i = 0; i < nr; i++) {
+		struct armflash_subdev_info *subdev = &info->subdev[i];
+		struct resource *res;
+
+		res = platform_get_resource(dev, IORESOURCE_MEM, i);
+		if (!res)
+			break;
+
+		if (nr == 1)
+			/* No MTD concatenation, just use the default name */
+			snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s",
+				 dev_name(&dev->dev));
+		else
+			snprintf(subdev->name, SUBDEV_NAME_SIZE, "%s-%d",
+				 dev_name(&dev->dev), i);
+		subdev->plat = plat;
+
+		err = armflash_subdev_probe(subdev, res);
+		if (err)
+			break;
+	}
+	info->nr_subdev = i;
+
+	if (err)
+		goto subdev_err;
+
+	if (info->nr_subdev == 1)
+		info->mtd = info->subdev[0].mtd;
+	else if (info->nr_subdev > 1) {
+#ifdef CONFIG_MTD_CONCAT
+		struct mtd_info *cdev[info->nr_subdev];
+
+		/*
+		 * We detected multiple devices.  Concatenate them together.
+		 */
+		for (i = 0; i < info->nr_subdev; i++)
+			cdev[i] = info->subdev[i].mtd;
+
+		info->mtd = mtd_concat_create(cdev, info->nr_subdev,
+					      dev_name(&dev->dev));
+		if (info->mtd == NULL)
+			err = -ENXIO;
+#else