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
  ...

35 files changed, 2898 insertions, 720 deletions

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
+		printk(KERN_ERR "armflash: multiple devices found but "
+		       "MTD concat support disabled.\n");
+		err = -ENXIO;
+#endif
+	}
+
+	if (err < 0)
+		goto cleanup;
 
 	err = parse_mtd_partitions(info->mtd, probes, &info->parts, 0);
 	if (err > 0) {
@@ -131,28 +227,30 @@ static int armflash_probe(struct platform_device *dev)
 			       "mtd partition registration failed: %d\n", err);
 	}
 
-	if (err == 0)
+	if (err == 0) {
 		platform_set_drvdata(dev, info);
+		return err;
+	}
 
 	/*
-	 * If we got an error, free all resources.
+	 * We got an error, free all resources.
 	 */
-	if (err < 0) {
-		if (info->mtd) {
-			del_mtd_partitions(info->mtd);
-			map_destroy(info->mtd);
-		}
-		kfree(info->parts);
-
- no_device:
-		iounmap(base);
- no_mem:
-		release_mem_region(res->start, size);
- no_resource:
-		if (plat && plat->exit)
-			plat->exit();
-		kfree(info);
+ cleanup:
+	if (info->mtd) {
+		del_mtd_partitions(info->mtd);
+#ifdef CONFIG_MTD_CONCAT
+		if (info->mtd != info->subdev[0].mtd)
+			mtd_concat_destroy(info->mtd);
+#endif
 	}
+	kfree(info->parts);
+ subdev_err:
+	for (i = info->nr_subdev - 1; i >= 0; i--)
+		armflash_subdev_remove(&info->subdev[i]);
+ no_resource:
+	if (plat && plat->exit)
+		plat->exit();
+	kfree(info);
  out:
 	return err;
 }
@@ -160,22 +258,26 @@ static int armflash_probe(struct platform_device *dev)
 static int armflash_remove(struct platform_device *dev)
 {
 	struct armflash_info *info = platform_get_drvdata(dev);
+	struct flash_platform_data *plat = dev->dev.platform_data;
+	int i;
 
 	platform_set_drvdata(dev, NULL);
 
 	if (info) {
 		if (info->mtd) {
 			del_mtd_partitions(info->mtd);
-			map_destroy(info->mtd);
+#ifdef CONFIG_MTD_CONCAT
+			if (info->mtd != info->subdev[0].mtd)
+				mtd_concat_destroy(info->mtd);
+#endif
 		}
 		kfree(info->parts);
 
-		iounmap(info->map.virt);
-		release_resource(info->res);
-		kfree(info->res);
+		for (i = info->nr_subdev - 1; i >= 0; i--)
+			armflash_subdev_remove(&info->subdev[i]);
 
-		if (info->plat && info->plat->exit)
-			info->plat->exit();
+		if (plat && plat->exit)
+			plat->exit();
 
 		kfree(info);
 	}
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 29a90115735..380648e9051 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -195,42 +195,6 @@ err_out:
 }
 
 #ifdef CONFIG_PM
-static int physmap_flash_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct physmap_flash_info *info = platform_get_drvdata(dev);
-	int ret = 0;
-	int i;
-
-	for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
-		if (info->mtd[i]->suspend) {
-			ret = info->mtd[i]->suspend(info->mtd[i]);
-			if (ret)
-				goto fail;
-		}
-
-	return 0;
-fail:
-	for (--i; i >= 0; --i)
-		if (info->mtd[i]->suspend) {
-			BUG_ON(!info->mtd[i]->resume);
-			info->mtd[i]->resume(info->mtd[i]);
-		}
-
-	return ret;
-}
-
-static int physmap_flash_resume(struct platform_device *dev)
-{
-	struct physmap_flash_info *info = platform_get_drvdata(dev);
-	int i;
-
-	for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
-		if (info->mtd[i]->resume)
-			info->mtd[i]->resume(info->mtd[i]);
-
-	return 0;
-}
-
 static void physmap_flash_shutdown(struct platform_device *dev)
 {
 	struct physmap_flash_info *info = platform_get_drvdata(dev);
@@ -242,16 +206,12 @@ static void physmap_flash_shutdown(struct platform_device *dev)
 				info->mtd[i]->resume(info->mtd[i]);
 }
 #else
-#define physmap_flash_suspend NULL
-#define physmap_flash_resume NULL
 #define physmap_flash_shutdown NULL
 #endif
 
 static struct platform_driver physmap_flash_driver = {
 	.probe		= physmap_flash_probe,
 	.remove		= physmap_flash_remove,
-	.suspend	= physmap_flash_suspend,
-	.resume		= physmap_flash_resume,
 	.shutdown	= physmap_flash_shutdown,
 	.driver		= {
 		.name	= "physmap-flash",
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index c83a60fada5..39d357b2eb4 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -20,16 +20,23 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/map.h>
 #include <linux/mtd/partitions.h>
+#include <linux/mtd/concat.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
 
+struct of_flash_list {
+	struct mtd_info *mtd;
+	struct map_info map;
+	struct resource *res;
+};
+
 struct of_flash {
-	struct mtd_info		*mtd;
-	struct map_info		map;
-	struct resource		*res;
+	struct mtd_info		*cmtd;
 #ifdef CONFIG_MTD_PARTITIONS
 	struct mtd_partition	*parts;
 #endif
+	int list_size; /* number of elements in of_flash_list */
+	struct of_flash_list	list[0];
 };
 
 #ifdef CONFIG_MTD_PARTITIONS
@@ -88,30 +95,44 @@ static int parse_obsolete_partitions(struct of_device *dev,
 static int of_flash_remove(struct of_device *dev)
 {
 	struct of_flash *info;
+	int i;
 
 	info = dev_get_drvdata(&dev->dev);
 	if (!info)
 		return 0;
 	dev_set_drvdata(&dev->dev, NULL);
 
-	if (info->mtd) {
+#ifdef CONFIG_MTD_CONCAT
+	if (info->cmtd != info->list[0].mtd) {
+		del_mtd_device(info->cmtd);
+		mtd_concat_destroy(info->cmtd);
+	}
+#endif
+
+	if (info->cmtd) {
 		if (OF_FLASH_PARTS(info)) {
-			del_mtd_partitions(info->mtd);
+			del_mtd_partitions(info->cmtd);
 			kfree(OF_FLASH_PARTS(info));
 		} else {
-			del_mtd_device(info->mtd);
+			del_mtd_device(info->cmtd);
 		}
-		map_destroy(info->mtd);
 	}
 
-	if (info->map.virt)
-		iounmap(info->map.virt);
+	for (i = 0; i < info->list_size; i++) {
+		if (info->list[i].mtd)
+			map_destroy(info->list[i].mtd);
 
-	if (info->res) {
-		release_resource(info->res);
-		kfree(info->res);
+		if (info->list[i].map.virt)
+			iounmap(info->list[i].map.virt);
+
+		if (info->list[i].res) {
+			release_resource(info->list[i].res);
+			kfree(info->list[i].res);
+		}
 	}
 
+	kfree(info);
+
 	return 0;
 }
 
@@ -164,68 +185,130 @@ static int __devinit of_flash_probe(struct of_device *dev,
 	const char *probe_type = match->data;
 	const u32 *width;
 	int err;
-
-	err = -ENXIO;
-	if (of_address_to_resource(dp, 0, &res)) {
-		dev_err(&dev->dev, "Can't get IO address from device tree\n");
+	int i;
+	int count;
+	const u32 *p;
+	int reg_tuple_size;
+	struct mtd_info **mtd_list = NULL;
+
+	reg_tuple_size = (of_n_addr_cells(dp) + of_n_size_cells(dp)) * sizeof(u32);
+
+	/*
+	 * Get number of "reg" tuples. Scan for MTD devices on area's
+	 * described by each "reg" region. This makes it possible (including
+	 * the concat support) to support the Intel P30 48F4400 chips which
+	 * consists internally of 2 non-identical NOR chips on one die.
+	 */
+	p = of_get_property(dp, "reg", &count);
+	if (count % reg_tuple_size != 0) {
+		dev_err(&dev->dev, "Malformed reg property on %s\n",
+				dev->node->full_name);
+		err = -EINVAL;
 		goto err_out;
 	}
-
-       	dev_dbg(&dev->dev, "of_flash device: %.8llx-%.8llx\n",
-		(unsigned long long)res.start, (unsigned long long)res.end);
+	count /= reg_tuple_size;
 
 	err = -ENOMEM;
-	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	info = kzalloc(sizeof(struct of_flash) +
+		       sizeof(struct of_flash_list) * count, GFP_KERNEL);
+	if (!info)
+		goto err_out;
+
+	mtd_list = kzalloc(sizeof(struct mtd_info) * count, GFP_KERNEL);
 	if (!info)
 		goto err_out;
 
 	dev_set_drvdata(&dev->dev, info);
 
-	err = -EBUSY;
-	info->res = request_mem_region(res.start, res.end - res.start + 1,
-				       dev_name(&dev->dev));
-	if (!info->res)
-		goto err_out;
+	for (i = 0; i < count; i++) {
+		err = -ENXIO;
+		if (of_address_to_resource(dp, i, &res)) {
+			dev_err(&dev->dev, "Can't get IO address from device"
+				" tree\n");
+			goto err_out;
+		}
 
-	err = -ENXIO;
-	width = of_get_property(dp, "bank-width", NULL);
-	if (!width) {
-		dev_err(&dev->dev, "Can't get bank width from device tree\n");
-		goto err_out;
-	}
+		dev_dbg(&dev->dev, "of_flash device: %.8llx-%.8llx\n",
+			(unsigned long long)res.start,
+			(unsigned long long)res.end);
+
+		err = -EBUSY;
+		info->list[i].res = request_mem_region(res.start, res.end -
+						       res.start + 1,
+						       dev_name(&dev->dev));
+		if (!info->list[i].res)
+			goto err_out;
+
+		err = -ENXIO;
+		width = of_get_property(dp, "bank-width", NULL);
+		if (!width) {
+			dev_err(&dev->dev, "Can't get bank width from device"
+				" tree\n");
+			goto err_out;
+		}
 
-	info->map.name = dev_name(&dev->dev);
-	info->map.phys = res.start;
-	info->map.size = res.end - res.start + 1;
-	info->map.bankwidth = *width;
+		info->list[i].map.name = dev_name(&dev->dev);
+		info->list[i].map.phys = res.start;
+		info->list[i].map.size = res.end - res.start + 1;
+		info->list[i].map.bankwidth = *width;
+
+		err = -ENOMEM;
+		info->list[i].map.virt = ioremap(info->list[i].map.phys,
+						 info->list[i].map.size);
+		if (!info->list[i].map.virt) {
+			dev_err(&dev->dev, "Failed to ioremap() flash"
+				" region\n");
+			goto err_out;
+		}
 
-	err = -ENOMEM;
-	info->map.virt = ioremap(info->map.phys, info->map.size);
-	if (!info->map.virt) {
-		dev_err(&dev->dev, "Failed to ioremap() flash region\n");
-		goto err_out;
-	}
+		simple_map_init(&info->list[i].map);
 
-	simple_map_init(&info->map);
+		if (probe_type) {
+			info->list[i].mtd = do_map_probe(probe_type,
+							 &info->list[i].map);
+		} else {
+			info->list[i].mtd = obsolete_probe(dev,
+							   &info->list[i].map);
+		}
+		mtd_list[i] = info->list[i].mtd;
 
-	if (probe_type)
-		info->mtd = do_map_probe(probe_type, &info->map);
-	else
-		info->mtd = obsolete_probe(dev, &info->map);
+		err = -ENXIO;
+		if (!info->list[i].mtd) {
+			dev_err(&dev->dev, "do_map_probe() failed\n");
+			goto err_out;
+		} else {
+			info->list_size++;
+		}
+		info->list[i].mtd->owner = THIS_MODULE;
+		info->list[i].mtd->dev.parent = &dev->dev;
+	}
 
-	err = -ENXIO;
-	if (!info->mtd) {
-		dev_err(&dev->dev, "do_map_probe() failed\n");
-		goto err_out;
+	err