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

* git://git.infradead.org/mtd-2.6: (120 commits)
  [MTD] Fix mtdoops.c compilation
  [MTD] [NOR] fix startup lock when using multiple nor flash chips
  [MTD] [DOC200x] eccbuf is statically defined and always evaluate to true
  [MTD] Fix maps/physmap.c compilation with CONFIG_PM
  [MTD] onenand: Add panic_write function to the onenand driver
  [MTD] mtdoops: Use the panic_write function when present
  [MTD] Add mtd panic_write function pointer
  [MTD] [NAND] Freescale enhanced Local Bus Controller FCM NAND support.
  [MTD] physmap.c: Add support for multiple resources
  [MTD] [NAND] Fix misparenthesization introduced by commit 78b6517...
  [MTD] [NAND] Fix Blackfin NFC ECC calculating bug with page size 512 bytes
  [MTD] [NAND] Remove wrong operation in PM function of the BF54x NFC driver
  [MTD] [NAND] Remove unused variable in plat_nand_remove
  [MTD] Unlocking all Intel flash that is locked on power up.
  [MTD] [NAND] at91_nand: Make mtdparts option can override board info
  [MTD] mtdoops: Various minor cleanups
  [MTD] mtdoops: Ensure sequential write to the buffer
  [MTD] mtdoops: Perform write operations in a workqueue
  [MTD] mtdoops: Add further error return code checking
  [MTD] [NOR] Test devtype, not definition in flash_probe(), drivers/mtd/devices/lart.c
  ...

drivers/mtd/Kconfig

@@ -150,6 +150,14 @@ config MTD_AFS_PARTS
 	  for your particular device. It won't happen automatically. The
 	  'armflash' map driver (CONFIG_MTD_ARMFLASH) does this, for example.
 
+config MTD_OF_PARTS
+	tristate "Flash partition map based on OF description"
+	depends on PPC_OF && MTD_PARTITIONS
+	help
+	  This provides a partition parsing function which derives
+	  the partition map from the children of the flash node,
+	  as described in Documentation/powerpc/booting-without-of.txt.
+
 comment "User Modules And Translation Layers"
 
 config MTD_CHAR
@@ -286,6 +294,9 @@ config MTD_OOPS
 	  buffer in a flash partition where it can be read back at some
 	  later point.
 
+	  To use, add console=ttyMTDx to the kernel command line,
+	  where x is the MTD device number to use.
+
 source "drivers/mtd/chips/Kconfig"
 
 source "drivers/mtd/maps/Kconfig"

drivers/mtd/Makefile

@@ -11,6 +11,7 @@ obj-$(CONFIG_MTD_CONCAT)	+= mtdconcat.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
 obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
+obj-$(CONFIG_MTD_OF_PARTS)      += ofpart.o
 
 # 'Users' - code which presents functionality to userspace.
 obj-$(CONFIG_MTD_CHAR)		+= mtdchar.o

drivers/mtd/chips/cfi_cmdset_0001.c

@@ -50,6 +50,7 @@
 #define I82802AC	0x00ac
 #define MANUFACTURER_ST         0x0020
 #define M50LPW080       0x002F
+#define AT49BV640D	0x02de
 
 static int cfi_intelext_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
 static int cfi_intelext_write_words(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
@@ -157,6 +158,47 @@ static void cfi_tell_features(struct cfi_pri_intelext *extp)
 }
 #endif
 
+/* Atmel chips don't use the same PRI format as Intel chips */
+static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
+{
+	struct map_info *map = mtd->priv;
+	struct cfi_private *cfi = map->fldrv_priv;
+	struct cfi_pri_intelext *extp = cfi->cmdset_priv;
+	struct cfi_pri_atmel atmel_pri;
+	uint32_t features = 0;
+
+	/* Reverse byteswapping */
+	extp->FeatureSupport = cpu_to_le32(extp->FeatureSupport);
+	extp->BlkStatusRegMask = cpu_to_le16(extp->BlkStatusRegMask);
+	extp->ProtRegAddr = cpu_to_le16(extp->ProtRegAddr);
+
+	memcpy(&atmel_pri, extp, sizeof(atmel_pri));
+	memset((char *)extp + 5, 0, sizeof(*extp) - 5);
+
+	printk(KERN_ERR "atmel Features: %02x\n", atmel_pri.Features);
+
+	if (atmel_pri.Features & 0x01) /* chip erase supported */
+		features |= (1<<0);
+	if (atmel_pri.Features & 0x02) /* erase suspend supported */
+		features |= (1<<1);
+	if (atmel_pri.Features & 0x04) /* program suspend supported */
+		features |= (1<<2);
+	if (atmel_pri.Features & 0x08) /* simultaneous operations supported */
+		features |= (1<<9);
+	if (atmel_pri.Features & 0x20) /* page mode read supported */
+		features |= (1<<7);
+	if (atmel_pri.Features & 0x40) /* queued erase supported */
+		features |= (1<<4);
+	if (atmel_pri.Features & 0x80) /* Protection bits supported */
+		features |= (1<<6);
+
+	extp->FeatureSupport = features;
+
+	/* burst write mode not supported */
+	cfi->cfiq->BufWriteTimeoutTyp = 0;
+	cfi->cfiq->BufWriteTimeoutMax = 0;
+}
+
 #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
 /* Some Intel Strata Flash prior to FPO revision C has bugs in this area */
 static void fixup_intel_strataflash(struct mtd_info *mtd, void* param)
@@ -227,13 +269,20 @@ static void fixup_use_write_buffers(struct mtd_info *mtd, void *param)
 /*
  * Some chips power-up with all sectors locked by default.
  */
-static void fixup_use_powerup_lock(struct mtd_info *mtd, void *param)
+static void fixup_unlock_powerup_lock(struct mtd_info *mtd, void *param)
 {
-	printk(KERN_INFO "Using auto-unlock on power-up/resume\n" );
-	mtd->flags |= MTD_STUPID_LOCK;
+	struct map_info *map = mtd->priv;
+	struct cfi_private *cfi = map->fldrv_priv;
+	struct cfi_pri_intelext *cfip = cfi->cmdset_priv;
+
+	if (cfip->FeatureSupport&32) {
+		printk(KERN_INFO "Using auto-unlock on power-up/resume\n" );
+		mtd->flags |= MTD_POWERUP_LOCK;
+	}
 }
 
 static struct cfi_fixup cfi_fixup_table[] = {
+	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
 #ifdef CMDSET0001_DISABLE_ERASE_SUSPEND_ON_WRITE
 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_intel_strataflash, NULL },
 #endif
@@ -245,7 +294,7 @@ static struct cfi_fixup cfi_fixup_table[] = {
 #endif
 	{ CFI_MFR_ST, 0x00ba, /* M28W320CT */ fixup_st_m28w320ct, NULL },
 	{ CFI_MFR_ST, 0x00bb, /* M28W320CB */ fixup_st_m28w320cb, NULL },
-	{ MANUFACTURER_INTEL, 0x891c,	      fixup_use_powerup_lock, NULL, },
+	{ MANUFACTURER_INTEL, CFI_ID_ANY, fixup_unlock_powerup_lock, NULL, },
 	{ 0, 0, NULL, NULL }
 };
 
@@ -277,7 +326,7 @@ read_pri_intelext(struct map_info *map, __u16 adr)
 		return NULL;
 
 	if (extp->MajorVersion != '1' ||
-	    (extp->MinorVersion < '0' || extp->MinorVersion > '4')) {
+	    (extp->MinorVersion < '0' || extp->MinorVersion > '5')) {
 		printk(KERN_ERR "  Unknown Intel/Sharp Extended Query "
 		       "version %c.%c.\n",  extp->MajorVersion,
 		       extp->MinorVersion);
@@ -752,6 +801,7 @@ static int chip_ready (struct map_info *map, struct flchip *chip, unsigned long
 static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr, int mode)
 {
 	int ret;
+	DECLARE_WAITQUEUE(wait, current);
 
  retry:
 	if (chip->priv && (mode == FL_WRITING || mode == FL_ERASING
@@ -808,6 +858,20 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
 			spin_unlock(contender->mutex);
 		}
 
+		/* Check if we already have suspended erase
+		 * on this chip. Sleep. */
+		if (mode == FL_ERASING && shared->erasing
+		    && shared->erasing->oldstate == FL_ERASING) {
+			spin_unlock(&shared->lock);
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			add_wait_queue(&chip->wq, &wait);
+			spin_unlock(chip->mutex);
+			schedule();
+			remove_wait_queue(&chip->wq, &wait);
+			spin_lock(chip->mutex);
+			goto retry;
+		}
+
 		/* We now own it */
 		shared->writing = chip;
 		if (mode == FL_ERASING)
@@ -2294,7 +2358,7 @@ static int cfi_intelext_suspend(struct mtd_info *mtd)
 	struct flchip *chip;
 	int ret = 0;
 
-	if ((mtd->flags & MTD_STUPID_LOCK)
+	if ((mtd->flags & MTD_POWERUP_LOCK)
 	    && extp && (extp->FeatureSupport & (1 << 5)))
 		cfi_intelext_save_locks(mtd);
 
@@ -2405,7 +2469,7 @@ static void cfi_intelext_resume(struct mtd_info *mtd)
 		spin_unlock(chip->mutex);
 	}
 
-	if ((mtd->flags & MTD_STUPID_LOCK)
+	if ((mtd->flags & MTD_POWERUP_LOCK)
 	    && extp && (extp->FeatureSupport & (1 << 5)))
 		cfi_intelext_restore_locks(mtd);
 }

drivers/mtd/chips/cfi_cmdset_0002.c

@@ -185,6 +185,10 @@ static void fixup_convert_atmel_pri(struct mtd_info *mtd, void *param)
 		extp->TopBottom = 2;
 	else
 		extp->TopBottom = 3;
+
+	/* burst write mode not supported */
+	cfi->cfiq->BufWriteTimeoutTyp = 0;
+	cfi->cfiq->BufWriteTimeoutMax = 0;
 }
 
 static void fixup_use_secsi(struct mtd_info *mtd, void *param)
@@ -213,10 +217,11 @@ static void fixup_use_atmel_lock(struct mtd_info *mtd, void *param)
 {
 	mtd->lock = cfi_atmel_lock;
 	mtd->unlock = cfi_atmel_unlock;
-	mtd->flags |= MTD_STUPID_LOCK;
+	mtd->flags |= MTD_POWERUP_LOCK;
 }
 
 static struct cfi_fixup cfi_fixup_table[] = {
+	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
 #ifdef AMD_BOOTLOC_BUG
 	{ CFI_MFR_AMD, CFI_ID_ANY, fixup_amd_bootblock, NULL },
 #endif
@@ -229,7 +234,6 @@ static struct cfi_fixup cfi_fixup_table[] = {
 #if !FORCE_WORD_WRITE
 	{ CFI_MFR_ANY, CFI_ID_ANY, fixup_use_write_buffers, NULL, },
 #endif
-	{ CFI_MFR_ATMEL, CFI_ID_ANY, fixup_convert_atmel_pri, NULL },
 	{ 0, 0, NULL, NULL }
 };
 static struct cfi_fixup jedec_fixup_table[] = {
@@ -338,10 +342,12 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
 		/* Modify the unlock address if we are in compatibility mode */
 		if (	/* x16 in x8 mode */
 			((cfi->device_type == CFI_DEVICETYPE_X8) &&
-				(cfi->cfiq->InterfaceDesc == 2)) ||
+				(cfi->cfiq->InterfaceDesc ==
+					CFI_INTERFACE_X8_BY_X16_ASYNC)) ||
 			/* x32 in x16 mode */
 			((cfi->device_type == CFI_DEVICETYPE_X16) &&
-				(cfi->cfiq->InterfaceDesc == 4)))
+				(cfi->cfiq->InterfaceDesc ==
+					CFI_INTERFACE_X16_BY_X32_ASYNC)))
 		{
 			cfi->addr_unlock1 = 0xaaa;
 			cfi->addr_unlock2 = 0x555;

drivers/mtd/chips/cfi_probe.c

@@ -370,27 +370,27 @@ static void print_cfi_ident(struct cfi_ident *cfip)
 	printk("Device size: 0x%X bytes (%d MiB)\n", 1 << cfip->DevSize, 1<< (cfip->DevSize - 20));
 	printk("Flash Device Interface description: 0x%4.4X\n", cfip->InterfaceDesc);
 	switch(cfip->InterfaceDesc) {
-	case 0:
+	case CFI_INTERFACE_X8_ASYNC:
 		printk("  - x8-only asynchronous interface\n");
 		break;
 
-	case 1:
+	case CFI_INTERFACE_X16_ASYNC:
 		printk("  - x16-only asynchronous interface\n");
 		break;
 
-	case 2:
+	case CFI_INTERFACE_X8_BY_X16_ASYNC:
 		printk("  - supports x8 and x16 via BYTE# with asynchronous interface\n");
 		break;
 
-	case 3:
+	case CFI_INTERFACE_X32_ASYNC:
 		printk("  - x32-only asynchronous interface\n");
 		break;
 
-	case 4:
+	case CFI_INTERFACE_X16_BY_X32_ASYNC:
 		printk("  - supports x16 and x32 via Word# with asynchronous interface\n");
 		break;
 
-	case 65535:
+	case CFI_INTERFACE_NOT_ALLOWED:
 		printk("  - Not Allowed / Reserved\n");
 		break;
 

drivers/mtd/chips/gen_probe.c

@@ -112,7 +112,7 @@ static struct cfi_private *genprobe_ident_chips(struct map_info *map, struct chi
 		max_chips = 1;
 	}
 
-	mapsize = (max_chips + BITS_PER_LONG-1) / BITS_PER_LONG;
+	mapsize = sizeof(long) * ( (max_chips + BITS_PER_LONG-1) / BITS_PER_LONG );
 	chip_map = kzalloc(mapsize, GFP_KERNEL);
 	if (!chip_map) {
 		printk(KERN_WARNING "%s: kmalloc failed for CFI chip map\n", map->name);