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

* git://git.infradead.org/mtd-2.6: (226 commits)
  mtd: tests: annotate as DANGEROUS in Kconfig
  mtd: tests: don't use mtd0 as a default
  mtd: clean up usage of MTD_DOCPROBE_ADDRESS
  jffs2: add compr=lzo and compr=zlib options
  jffs2: implement mount option parsing and compression overriding
  mtd: nand: initialize ops.mode
  mtd: provide an alias for the redboot module name
  mtd: m25p80: don't probe device which has status of 'disabled'
  mtd: nand_h1900 never worked
  mtd: Add DiskOnChip G3 support
  mtd: m25p80: add EON flash EN25Q32B into spi flash id table
  mtd: mark block device queue as non-rotational
  mtd: r852: make r852_pm_ops static
  mtd: m25p80: add support for at25df321a spi data flash
  mtd: mxc_nand: preset_v1_v2: unlock all NAND flash blocks
  mtd: nand: switch `check_pattern()' to standard `memcmp()'
  mtd: nand: invalidate cache on unaligned reads
  mtd: nand: do not scan bad blocks with NAND_BBT_NO_OOB set
  mtd: nand: wait to set BBT version
  mtd: nand: scrub BBT on ECC errors
  ...

Fix up trivial conflicts:
 - arch/arm/mach-at91/board-usb-a9260.c
	Merged into board-usb-a926x.c
 - drivers/mtd/maps/lantiq-flash.c
	add_mtd_partitions -> mtd_device_register vs changed to use
	mtd_device_parse_register.

129 files changed, 7007 insertions, 3621 deletions

diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 66b616ebe536..318a869286ab 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -12,27 +12,17 @@ menuconfig MTD
 
 if MTD
 
-config MTD_DEBUG
-        bool "Debugging"
-        help
-          This turns on low-level debugging for the entire MTD sub-system.
-          Normally, you should say 'N'.
-
-config MTD_DEBUG_VERBOSE
-        int "Debugging verbosity (0 = quiet, 3 = noisy)"
-        depends on MTD_DEBUG
-        default "0"
-        help
-          Determines the verbosity level of the MTD debugging messages.
-
 config MTD_TESTS
-        tristate "MTD tests support"
+        tristate "MTD tests support (DANGEROUS)"
         depends on m
         help
           This option includes various MTD tests into compilation. The tests
           should normally be compiled as kernel modules. The modules perform
           various checks and verifications when loaded.
 
+          WARNING: some of the tests will ERASE entire MTD device which they
+          test. Do not use these tests unless you really know what you do.
+
 config MTD_REDBOOT_PARTS
         tristate "RedBoot partition table parsing"
         ---help---
@@ -137,7 +127,8 @@ config MTD_AFS_PARTS
           'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
 
 config MTD_OF_PARTS
-        def_bool y
+        tristate "OpenFirmware partitioning information support"
+        default Y
         depends on OF
         help
           This provides a partition parsing function which derives
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 39664c4229ff..9aaac3ac89f3 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -5,8 +5,8 @@
 # Core functionality.
 obj-$(CONFIG_MTD)               += mtd.o
 mtd-y                           := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o
-mtd-$(CONFIG_MTD_OF_PARTS)      += ofpart.o
 
+obj-$(CONFIG_MTD_OF_PARTS)      += ofpart.o
 obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
 obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)     += afs.o
diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c
index 302372c08b56..89a02f6f65dc 100644
--- a/drivers/mtd/afs.c
+++ b/drivers/mtd/afs.c
@@ -162,8 +162,8 @@ afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr)
 }
 
 static int parse_afs_partitions(struct mtd_info *mtd,
-                         struct mtd_partition **pparts,
-                         unsigned long origin)
+                                struct mtd_partition **pparts,
+                                struct mtd_part_parser_data *data)
 {
         struct mtd_partition *parts;
         u_int mask, off, idx, sz;
diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c
index 95949b97de6a..f40ea4547554 100644
--- a/drivers/mtd/ar7part.c
+++ b/drivers/mtd/ar7part.c
@@ -47,7 +47,7 @@ struct ar7_bin_rec {
 
 static int create_mtd_partitions(struct mtd_info *master,
                                  struct mtd_partition **pparts,
-                                 unsigned long origin)
+                                 struct mtd_part_parser_data *data)
 {
         struct ar7_bin_rec header;
         unsigned int offset;
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
index 23175edd5634..8d70895a58d6 100644
--- a/drivers/mtd/chips/cfi_cmdset_0002.c
+++ b/drivers/mtd/chips/cfi_cmdset_0002.c
@@ -145,8 +145,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd)
         if (((major << 8) | minor) < 0x3131) {
                 /* CFI version 1.0 => don't trust bootloc */
 
-                DEBUG(MTD_DEBUG_LEVEL1,
-                        "%s: JEDEC Vendor ID is 0x%02X Device ID is 0x%02X\n",
+                pr_debug("%s: JEDEC Vendor ID is 0x%02X Device ID is 0x%02X\n",
                         map->name, cfi->mfr, cfi->id);
 
                 /* AFAICS all 29LV400 with a bottom boot block have a device ID
@@ -166,8 +165,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd)
                          * the 8-bit device ID.
                          */
                         (cfi->mfr == CFI_MFR_MACRONIX)) {
-                        DEBUG(MTD_DEBUG_LEVEL1,
-                                "%s: Macronix MX29LV400C with bottom boot block"
+                        pr_debug("%s: Macronix MX29LV400C with bottom boot block"
                                 " detected\n", map->name);
                         extp->TopBottom = 2;    /* bottom boot */
                 } else
@@ -178,8 +176,7 @@ static void fixup_amd_bootblock(struct mtd_info *mtd)
                         extp->TopBottom = 2;    /* bottom boot */
                 }
 
-                DEBUG(MTD_DEBUG_LEVEL1,
-                        "%s: AMD CFI PRI V%c.%c has no boot block field;"
+                pr_debug("%s: AMD CFI PRI V%c.%c has no boot block field;"
                         " deduced %s from Device ID\n", map->name, major, minor,
                         extp->TopBottom == 2 ? "bottom" : "top");
         }
@@ -191,7 +188,7 @@ static void fixup_use_write_buffers(struct mtd_info *mtd)
         struct map_info *map = mtd->priv;
         struct cfi_private *cfi = map->fldrv_priv;
         if (cfi->cfiq->BufWriteTimeoutTyp) {
-                DEBUG(MTD_DEBUG_LEVEL1, "Using buffer write method\n" );
+                pr_debug("Using buffer write method\n" );
                 mtd->write = cfi_amdstd_write_buffers;
         }
 }
@@ -443,8 +440,8 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary)
         mtd->writesize = 1;
         mtd->writebufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): write buffer size %d\n",
-                __func__, mtd->writebufsize);
+        pr_debug("MTD %s(): write buffer size %d\n", __func__,
+                        mtd->writebufsize);
 
         mtd->reboot_notifier.notifier_call = cfi_amdstd_reboot;
 
@@ -1163,7 +1160,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
                 return ret;
         }
 
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n",
+        pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n",
                __func__, adr, datum.x[0] );
 
         /*
@@ -1174,7 +1171,7 @@ static int __xipram do_write_oneword(struct map_info *map, struct flchip *chip,
          */
         oldd = map_read(map, adr);
         if (map_word_equal(map, oldd, datum)) {
-                DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): NOP\n",
+                pr_debug("MTD %s(): NOP\n",
                        __func__);
                 goto op_done;
         }
@@ -1400,7 +1397,7 @@ static int __xipram do_write_buffer(struct map_info *map, struct flchip *chip,
 
         datum = map_word_load(map, buf);
 
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n",
+        pr_debug("MTD %s(): WRITE 0x%.8lx(0x%.8lx)\n",
                __func__, adr, datum.x[0] );
 
         XIP_INVAL_CACHED_RANGE(map, adr, len);
@@ -1587,7 +1584,7 @@ static int __xipram do_erase_chip(struct map_info *map, struct flchip *chip)
                 return ret;
         }
 
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n",
+        pr_debug("MTD %s(): ERASE 0x%.8lx\n",
                __func__, chip->start );
 
         XIP_INVAL_CACHED_RANGE(map, adr, map->size);
@@ -1675,7 +1672,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
                 return ret;
         }
 
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): ERASE 0x%.8lx\n",
+        pr_debug("MTD %s(): ERASE 0x%.8lx\n",
                __func__, adr );
 
         XIP_INVAL_CACHED_RANGE(map, adr, len);
@@ -1801,8 +1798,7 @@ static int do_atmel_lock(struct map_info *map, struct flchip *chip,
                 goto out_unlock;
         chip->state = FL_LOCKING;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n",
-              __func__, adr, len);
+        pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len);
 
         cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi,
                          cfi->device_type, NULL);
@@ -1837,8 +1833,7 @@ static int do_atmel_unlock(struct map_info *map, struct flchip *chip,
                 goto out_unlock;
         chip->state = FL_UNLOCKING;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "MTD %s(): LOCK 0x%08lx len %d\n",
-              __func__, adr, len);
+        pr_debug("MTD %s(): LOCK 0x%08lx len %d\n", __func__, adr, len);
 
         cfi_send_gen_cmd(0xAA, cfi->addr_unlock1, chip->start, map, cfi,
                          cfi->device_type, NULL);
diff --git a/drivers/mtd/chips/fwh_lock.h b/drivers/mtd/chips/fwh_lock.h
index 5e3cc80128aa..89c6595454a5 100644
--- a/drivers/mtd/chips/fwh_lock.h
+++ b/drivers/mtd/chips/fwh_lock.h
@@ -34,8 +34,7 @@ static int fwh_xxlock_oneblock(struct map_info *map, struct flchip *chip,
 
         /* Refuse the operation if the we cannot look behind the chip */
         if (chip->start < 0x400000) {
-                DEBUG( MTD_DEBUG_LEVEL3,
-                        "MTD %s(): chip->start: %lx wanted >= 0x400000\n",
+                pr_debug( "MTD %s(): chip->start: %lx wanted >= 0x400000\n",
                         __func__, chip->start );
                 return -EIO;
         }
diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c
index ea832ea0e4aa..c443f527a53a 100644
--- a/drivers/mtd/chips/jedec_probe.c
+++ b/drivers/mtd/chips/jedec_probe.c
@@ -1914,11 +1914,10 @@ static void jedec_reset(u32 base, struct map_info *map, struct cfi_private *cfi)
          * (oh and incidentaly the jedec spec - 3.5.3.3) the reset
          * sequence is *supposed* to be 0xaa at 0x5555, 0x55 at
          * 0x2aaa, 0xF0 at 0x5555 this will not affect the AMD chips
-         * as they will ignore the writes and dont care what address
+         * as they will ignore the writes and don't care what address
          * the F0 is written to */
         if (cfi->addr_unlock1) {
-                DEBUG( MTD_DEBUG_LEVEL3,
-                       "reset unlock called %x %x \n",
+                pr_debug( "reset unlock called %x %x \n",
                        cfi->addr_unlock1,cfi->addr_unlock2);
                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
@@ -1941,7 +1940,7 @@ static int cfi_jedec_setup(struct map_info *map, struct cfi_private *cfi, int in
         uint8_t uaddr;
 
         if (!(jedec_table[index].devtypes & cfi->device_type)) {
-                DEBUG(MTD_DEBUG_LEVEL1, "Rejecting potential %s with incompatible %d-bit device type\n",
+                pr_debug("Rejecting potential %s with incompatible %d-bit device type\n",
                       jedec_table[index].name, 4 * (1<<cfi->device_type));
                 return 0;
         }
@@ -2021,7 +2020,7 @@ static inline int jedec_match( uint32_t base,
                  * there aren't.
                  */
                 if (finfo->dev_id > 0xff) {
-                        DEBUG( MTD_DEBUG_LEVEL3, "%s(): ID is not 8bit\n",
+                        pr_debug("%s(): ID is not 8bit\n",
                                __func__);
                         goto match_done;
                 }
@@ -2045,12 +2044,10 @@ static inline int jedec_match( uint32_t base,
         }
 
         /* the part size must fit in the memory window */
-        DEBUG( MTD_DEBUG_LEVEL3,
-               "MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n",
+        pr_debug("MTD %s(): Check fit 0x%.8x + 0x%.8x = 0x%.8x\n",
                __func__, base, 1 << finfo->dev_size, base + (1 << finfo->dev_size) );
         if ( base + cfi_interleave(cfi) * ( 1 << finfo->dev_size ) > map->size ) {
-                DEBUG( MTD_DEBUG_LEVEL3,
-                       "MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n",
+                pr_debug("MTD %s(): 0x%.4x 0x%.4x %dKiB doesn't fit\n",
                        __func__, finfo->mfr_id, finfo->dev_id,
                        1 << finfo->dev_size );
                 goto match_done;
@@ -2061,13 +2058,12 @@ static inline int jedec_match( uint32_t base,
 
         uaddr = finfo->uaddr;
 
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n",
+        pr_debug("MTD %s(): check unlock addrs 0x%.4x 0x%.4x\n",
                __func__, cfi->addr_unlock1, cfi->addr_unlock2 );
         if ( MTD_UADDR_UNNECESSARY != uaddr && MTD_UADDR_DONT_CARE != uaddr
              && ( unlock_addrs[uaddr].addr1 / cfi->device_type != cfi->addr_unlock1 ||
                   unlock_addrs[uaddr].addr2 / cfi->device_type != cfi->addr_unlock2 ) ) {
-                DEBUG( MTD_DEBUG_LEVEL3,
-                        "MTD %s(): 0x%.4x 0x%.4x did not match\n",
+                pr_debug("MTD %s(): 0x%.4x 0x%.4x did not match\n",
                         __func__,
                         unlock_addrs[uaddr].addr1,
                         unlock_addrs[uaddr].addr2);
@@ -2083,15 +2079,13 @@ static inline int jedec_match( uint32_t base,
          * FIXME - write a driver that takes all of the chip info as
          * module parameters, doesn't probe but forces a load.
          */
-        DEBUG( MTD_DEBUG_LEVEL3,
-               "MTD %s(): check ID's disappear when not in ID mode\n",
+        pr_debug("MTD %s(): check ID's disappear when not in ID mode\n",
                __func__ );
         jedec_reset( base, map, cfi );
         mfr = jedec_read_mfr( map, base, cfi );
         id = jedec_read_id( map, base, cfi );
         if ( mfr == cfi->mfr && id == cfi->id ) {
-                DEBUG( MTD_DEBUG_LEVEL3,
-                       "MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n"
+                pr_debug("MTD %s(): ID 0x%.2x:0x%.2x did not change after reset:\n"
                        "You might need to manually specify JEDEC parameters.\n",
                         __func__, cfi->mfr, cfi->id );
                 goto match_done;
@@ -2104,7 +2098,7 @@ static inline int jedec_match( uint32_t base,
          * Put the device back in ID mode - only need to do this if we
          * were truly frobbing a real device.
          */
-        DEBUG( MTD_DEBUG_LEVEL3, "MTD %s(): return to ID mode\n", __func__ );
+        pr_debug("MTD %s(): return to ID mode\n", __func__ );
         if (cfi->addr_unlock1) {
                 cfi_send_gen_cmd(0xaa, cfi->addr_unlock1, base, map, cfi, cfi->device_type, NULL);
                 cfi_send_gen_cmd(0x55, cfi->addr_unlock2, base, map, cfi, cfi->device_type, NULL);
@@ -2167,13 +2161,11 @@ static int jedec_probe_chip(struct map_info *map, __u32 base,
 
                 cfi->mfr = jedec_read_mfr(map, base, cfi);
                 cfi->id = jedec_read_id(map, base, cfi);
-                DEBUG(MTD_DEBUG_LEVEL3,
-                      "Search for id:(%02x %02x) interleave(%d) type(%d)\n",
+                pr_debug("Search for id:(%02x %02x) interleave(%d) type(%d)\n",
                         cfi->mfr, cfi->id, cfi_interleave(cfi), cfi->device_type);
                 for (i = 0; i < ARRAY_SIZE(jedec_table); i++) {
                         if ( jedec_match( base, map, cfi, &jedec_table[i] ) ) {
-                                DEBUG( MTD_DEBUG_LEVEL3,
-                                       "MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
+                                pr_debug("MTD %s(): matched device 0x%x,0x%x unlock_addrs: 0x%.4x 0x%.4x\n",
                                        __func__, cfi->mfr, cfi->id,
                                        cfi->addr_unlock1, cfi->addr_unlock2 );
                                 if (!cfi_jedec_setup(map, cfi, i))
diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c
index 8cf667da2408..ddf9ec6d9168 100644
--- a/drivers/mtd/cmdlinepart.c
+++ b/drivers/mtd/cmdlinepart.c
@@ -189,10 +189,7 @@ static struct mtd_partition * newpart(char *s,
                              extra_mem_size;
                 parts = kzalloc(alloc_size, GFP_KERNEL);
                 if (!parts)
-                {
-                        printk(KERN_ERR ERRP "out of memory\n");
                         return NULL;
-                }
                 extra_mem = (unsigned char *)(parts + *num_parts);
         }
         /* enter this partition (offset will be calculated later if it is zero at this point) */
@@ -317,8 +314,8 @@ static int mtdpart_setup_real(char *s)
  * the first one in the chain if a NULL mtd_id is passed in.
  */
 static int parse_cmdline_partitions(struct mtd_info *master,
-                             struct mtd_partition **pparts,
-                             unsigned long origin)
+                                    struct mtd_partition **pparts,
+                                    struct mtd_part_parser_data *data)
 {
         unsigned long offset;
         int i;
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 35081ce77fbd..283d887f7825 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -249,6 +249,16 @@ config MTD_DOC2001PLUS
           under "NAND Flash Device Drivers" (currently that driver does not
           support all Millennium Plus devices).
 
+config MTD_DOCG3
+        tristate "M-Systems Disk-On-Chip G3"
+        ---help---
+          This provides an MTD device driver for the M-Systems DiskOnChip
+          G3 devices.
+
+          The driver provides access to G3 DiskOnChip, distributed by
+          M-Systems and now Sandisk. The support is very experimental,
+          and doesn't give access to any write operations.
+
 config MTD_DOCPROBE
         tristate
         select MTD_DOCECC
@@ -268,8 +278,7 @@ config MTD_DOCPROBE_ADVANCED
 config MTD_DOCPROBE_ADDRESS
         hex "Physical address of DiskOnChip" if MTD_DOCPROBE_ADVANCED
         depends on MTD_DOCPROBE
-        default "0x0000" if MTD_DOCPROBE_ADVANCED
-        default "0" if !MTD_DOCPROBE_ADVANCED
+        default "0x0"
         ---help---
           By default, the probe for DiskOnChip devices will look for a
           DiskOnChip at every multiple of 0x2000 between 0xC8000 and 0xEE000.
diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
index f3226b1d38fc..56c7cd462f11 100644
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -5,6 +5,7 @@
 obj-$(CONFIG_MTD_DOC2000)       += doc2000.o
 obj-$(CONFIG_MTD_DOC2001)       += doc2001.o
 obj-$(CONFIG_MTD_DOC2001PLUS)   += doc2001plus.o
+obj-$(CONFIG_MTD_DOCG3)         += docg3.o
 obj-$(CONFIG_MTD_DOCPROBE)      += docprobe.o
 obj-$(CONFIG_MTD_DOCECC)        += docecc.o
 obj-$(CONFIG_MTD_SLRAM)         += slram.o
@@ -17,3 +18,5 @@ obj-$(CONFIG_MTD_BLOCK2MTD)	+= block2mtd.o
 obj-$(CONFIG_MTD_DATAFLASH)     += mtd_dataflash.o
 obj-$(CONFIG_MTD_M25P80)        += m25p80.o
 obj-$(CONFIG_MTD_SST25L)        += sst25l.o
+
+CFLAGS_docg3.o                  += -I$(src)
\ No newline at end of file
diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index f7fbf6025ef2..e9fad9151219 100644
--- a/drivers/mtd/devices/doc2000.c
+++ b/drivers/mtd/devices/doc2000.c
@@ -82,8 +82,7 @@ static int _DoC_WaitReady(struct DiskOnChip *doc)
         void __iomem *docptr = doc->virtadr;
         unsigned long timeo = jiffies + (HZ * 10);
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-              "_DoC_WaitReady called for out-of-line wait\n");
+        pr_debug("_DoC_WaitReady called for out-of-line wait\n");
 
         /* Out-of-line routine to wait for chip response */
         while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B)) {
@@ -92,7 +91,7 @@ static int _DoC_WaitReady(struct DiskOnChip *doc)
                 DoC_Delay(doc, 2);
 
                 if (time_after(jiffies, timeo)) {
-                        DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
+                        pr_debug("_DoC_WaitReady timed out.\n");
                         return -EIO;
                 }
                 udelay(1);
@@ -323,8 +322,7 @@ static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip)
 
         /* Reset the chip */
         if (DoC_Command(doc, NAND_CMD_RESET, CDSN_CTRL_WP)) {
-                DEBUG(MTD_DEBUG_LEVEL2,
-                      "DoC_Command (reset) for %d,%d returned true\n",
+                pr_debug("DoC_Command (reset) for %d,%d returned true\n",
                       floor, chip);
                 return 0;
         }
@@ -332,8 +330,7 @@ static int DoC_IdentChip(struct DiskOnChip *doc, int floor, int chip)
 
         /* Read the NAND chip ID: 1. Send ReadID command */
         if (DoC_Command(doc, NAND_CMD_READID, CDSN_CTRL_WP)) {
-                DEBUG(MTD_DEBUG_LEVEL2,
-                      "DoC_Command (ReadID) for %d,%d returned true\n",
+                pr_debug("DoC_Command (ReadID) for %d,%d returned true\n",
                       floor, chip);
                 return 0;
         }
@@ -699,7 +696,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
 #ifdef ECC_DEBUG
                         printk(KERN_ERR "DiskOnChip ECC Error: Read at %lx\n", (long)from);
 #endif
-                        /* Read the ECC syndrom through the DiskOnChip ECC
+                        /* Read the ECC syndrome through the DiskOnChip ECC
                            logic.  These syndrome will be all ZERO when there
                            is no error */
                         for (i = 0; i < 6; i++) {
@@ -930,7 +927,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs,
         uint8_t *buf = ops->oobbuf;
         size_t len = ops->len;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         ofs += ops->ooboffs;
 
@@ -1094,7 +1091,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
         struct DiskOnChip *this = mtd->priv;
         int ret;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         mutex_lock(&this->lock);
         ret = doc_write_oob_nolock(mtd, ofs + ops->ooboffs, ops->len,
diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c
index 241192f05bc8..a3f7a27499be 100644
--- a/drivers/mtd/devices/doc2001.c
+++ b/drivers/mtd/devices/doc2001.c
@@ -55,15 +55,14 @@ static int _DoC_WaitReady(void __iomem * docptr)
 {
         unsigned short c = 0xffff;
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-              "_DoC_WaitReady called for out-of-line wait\n");
+        pr_debug("_DoC_WaitReady called for out-of-line wait\n");
 
         /* Out-of-line routine to wait for chip response */
         while (!(ReadDOC(docptr, CDSNControl) & CDSN_CTRL_FR_B) && --c)
                 ;
 
         if (c == 0)
-                DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
+                pr_debug("_DoC_WaitReady timed out.\n");
 
         return (c == 0);
 }
@@ -464,7 +463,7 @@ static int doc_read (struct mtd_info *mtd, loff_t from, size_t len,
 #ifdef ECC_DEBUG
                 printk("DiskOnChip ECC Error: Read at %lx\n", (long)from);
 #endif
-                /* Read the ECC syndrom through the DiskOnChip ECC logic.
+                /* Read the ECC syndrome through the DiskOnChip ECC logic.
                    These syndrome will be all ZERO when there is no error */
                 for (i = 0; i < 6; i++) {
                         syndrome[i] = ReadDOC(docptr, ECCSyndrome0 + i);
@@ -632,7 +631,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs,
         uint8_t *buf = ops->oobbuf;
         size_t len = ops->len;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         ofs += ops->ooboffs;
 
@@ -690,7 +689,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
         uint8_t *buf = ops->oobbuf;
         size_t len = ops->len;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         ofs += ops->ooboffs;
 
diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c
index 09ae0adc3ad0..99351bc3e0ed 100644
--- a/drivers/mtd/devices/doc2001plus.c
+++ b/drivers/mtd/devices/doc2001plus.c
@@ -61,15 +61,14 @@ static int _DoC_WaitReady(void __iomem * docptr)
 {
         unsigned int c = 0xffff;
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-              "_DoC_WaitReady called for out-of-line wait\n");
+        pr_debug("_DoC_WaitReady called for out-of-line wait\n");
 
         /* Out-of-line routine to wait for chip response */
         while (((ReadDOC(docptr, Mplus_FlashControl) & CDSN_CTRL_FR_B_MASK) != CDSN_CTRL_FR_B_MASK) && --c)
                 ;
 
         if (c == 0)
-                DEBUG(MTD_DEBUG_LEVEL2, "_DoC_WaitReady timed out.\n");
+                pr_debug("_DoC_WaitReady timed out.\n");
 
         return (c == 0);
 }
@@ -655,7 +654,7 @@ static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
 #ifdef ECC_DEBUG
                 printk("DiskOnChip ECC Error: Read at %lx\n", (long)from);
 #endif
-                /* Read the ECC syndrom through the DiskOnChip ECC logic.
+                /* Read the ECC syndrome through the DiskOnChip ECC logic.
                    These syndrome will be all ZERO when there is no error */
                 for (i = 0; i < 6; i++)
                         syndrome[i] = ReadDOC(docptr, Mplus_ECCSyndrome0 + i);
@@ -835,7 +834,7 @@ static int doc_read_oob(struct mtd_info *mtd, loff_t ofs,
         uint8_t *buf = ops->oobbuf;
         size_t len = ops->len;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         ofs += ops->ooboffs;
 
@@ -920,7 +919,7 @@ static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
         uint8_t *buf = ops->oobbuf;
         size_t len = ops->len;
 
-        BUG_ON(ops->mode != MTD_OOB_PLACE);
+        BUG_ON(ops->mode != MTD_OPS_PLACE_OOB);
 
         ofs += ops->ooboffs;
 
diff --git a/drivers/mtd/devices/docecc.c b/drivers/mtd/devices/docecc.c
index 37ef29a73ee4..4a1c39b6f37d 100644
--- a/drivers/mtd/devices/docecc.c
+++ b/drivers/mtd/devices/docecc.c
@@ -2,7 +2,7 @@
  * ECC algorithm for M-systems disk on chip. We use the excellent Reed
  * Solmon code of Phil Karn (karn@ka9q.ampr.org) available under the
  * GNU GPL License. The rest is simply to convert the disk on chip
- * syndrom into a standard syndom.
+ * syndrome into a standard syndome.
  *
  * Author: Fabrice Bellard (fabrice.bellard@netgem.com)
  * Copyright (C) 2000 Netgem S.A.
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
new file mode 100644
index 000000000000..bdcf5df982e8
--- /dev/null
+++ b/drivers/mtd/devices/docg3.c
@@ -0,0 +1,1114 @@
+/*
+ * Handles the M-Systems DiskOnChip G3 chip
+ *
+ * Copyright (C) 2011 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#define CREATE_TRACE_POINTS
+#include "docg3.h"
+
+/*
+ * This driver handles the DiskOnChip G3 flash memory.
+ *
+ * As no specification is available from M-Systems/Sandisk, this drivers lacks
+ * several functions available on the chip, as :
+ *  - block erase
+ *  - page write
+ *  - IPL write
+ *  - ECC fixing (lack of BCH algorith understanding)
+ *  - powerdown / powerup
+ *
+ * The bus data width (8bits versus 16bits) is not handled (if_cfg flag), and
+ * the driver assumes a 16bits data bus.
+ *
+ * DocG3 relies on 2 ECC algorithms, which are handled in hardware :
+ *  - a 1 byte Hamming code stored in the OOB for each page
+ *  - a 7 bytes BCH code stored in the OOB for each page
+ * The BCH part is only used for check purpose, no correction is available as
+ * some information is missing. What is known is that :
+ *  - BCH is in GF(2^14)
+ *  - BCH is over data of 520 bytes (512 page + 7 page_info bytes
+ *                                   + 1 hamming byte)
+ *  - BCH can correct up to 4 bits (t = 4)
+ *  - BCH syndroms are calculated in hardware, and checked in hardware as well
+ *
+ */
+
+static inline u8 doc_readb(struct docg3 *docg3, u16 reg)
+{
+        u8 val = readb(docg3->base + reg);
+
+        trace_docg3_io(0, 8, reg, (int)val);
+        return val;
+}
+
+static inline u16 doc_readw(struct docg3 *docg3, u16 reg)
+{
+        u16 val = readw(docg3->base + reg);
+
+        trace_docg3_io(0, 16, reg, (int)val);
+        return val;
+}
+
+static inline void doc_writeb(struct docg3 *docg3, u8 val, u16 reg)
+{
+        writeb(val, docg3->base + reg);
+        trace_docg3_io(1, 16, reg, val);
+}
+
+static inline void doc_writew(struct docg3 *docg3, u16 val, u16 reg)
+{
+        writew(val, docg3->base + reg);
+        trace_docg3_io(1, 16, reg, val);
+}
+
+static inline void doc_flash_command(struct docg3 *docg3, u8 cmd)
+{
+        doc_writeb(docg3, cmd, DOC_FLASHCOMMAND);
+}
+
+static inline void doc_flash_sequence(struct docg3 *docg3, u8 seq)
+{
+        doc_writeb(docg3, seq, DOC_FLASHSEQUENCE);
+}
+
+static inline void doc_flash_address(struct docg3 *docg3, u8 addr)
+{
+        doc_writeb(docg3, addr, DOC_FLASHADDRESS);
+}
+
+static char const *part_probes[] = { "cmdlinepart", "saftlpart", NULL };
+
+static int doc_register_readb(struct docg3 *docg3, int reg)
+{
+        u8 val;
+
+        doc_writew(docg3, reg, DOC_READADDRESS);
+        val = doc_readb(docg3, reg);
+        doc_vdbg("Read register %04x : %02x\n", reg, val);
+        return val;
+}
+
+static int doc_register_readw(struct docg3 *docg3, int reg)
+{
+        u16 val;
+
+        doc_writew(docg3, reg, DOC_READADDRESS);
+        val = doc_readw(docg3, reg);
+        doc_vdbg("Read register %04x : %04x\n", reg, val);
+        return val;
+}
+
+/**
+ * doc_delay - delay docg3 operations
+ * @docg3: the device
+ * @nbNOPs: the number of NOPs to issue
+ *
+ * As no specification is available, the right timings between chip commands are
+ * unknown. The only available piece of information are the observed nops on a
+ * working docg3 chip.
+ * Therefore, doc_delay relies on a busy loop of NOPs, instead of scheduler
+ * friendlier msleep() functions or blocking mdelay().
+ */
+static void doc_delay(struct docg3 *docg3, int nbNOPs)
+{
+        int i;
+
+        doc_dbg("NOP x %d\n", nbNOPs);
+        for (i = 0; i < nbNOPs; i++)
+                doc_writeb(docg3, 0, DOC_NOP);
+}
+
+static int is_prot_seq_error(struct docg3 *docg3)
+{
+        int ctrl;
+
+        ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+        return ctrl & (DOC_CTRL_PROTECTION_ERROR | DOC_CTRL_SEQUENCE_ERROR);
+}
+
+static int doc_is_ready(struct docg3 *docg3)
+{
+        int ctrl;
+
+        ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+        return ctrl & DOC_CTRL_FLASHREADY;
+}
+
+static int doc_wait_ready(struct docg3 *docg3)
+{
+        int maxWaitCycles = 100;
+
+        do {
+                doc_delay(docg3, 4);
+                cpu_relax();
+        } while (!doc_is_ready(docg3) && maxWaitCycles--);
+        doc_delay(docg3, 2);
+        if (maxWaitCycles > 0)
+                return 0;
+        else
+                return -EIO;
+}
+
+static int doc_reset_seq(struct docg3 *docg3)
+{
+        int ret;
+
+        doc_writeb(docg3, 0x10, DOC_FLASHCONTROL);
+        doc_flash_sequence(docg3, DOC_SEQ_RESET);
+        doc_flash_command(docg3, DOC_CMD_RESET);
+        doc_delay(docg3, 2);
+        ret = doc_wait_ready(docg3);
+
+        doc_dbg("doc_reset_seq() -> isReady=%s\n", ret ? "false" : "true");
+        return ret;
+}
+
+/**
+ * doc_read_data_area - Read data from data area
+ * @docg3: the device
+ * @buf: the buffer to fill in
+ * @len: the lenght to read
+ * @first: first time read, DOC_READADDRESS should be set
+ *
+ * Reads bytes from flash data. Handles the single byte / even bytes reads.
+ */
+static void doc_read_data_area(struct docg3 *docg3, void *buf, int len,
+                               int first)
+{
+        int i, cdr, len4;
+        u16 data16, *dst16;
+        u8 data8, *dst8;
+
+        doc_dbg("doc_read_data_area(buf=%p, len=%d)\n", buf, len);
+        cdr = len & 0x3;
+        len4 = len - cdr;
+
+        if (first)
+                doc_writew(docg3, DOC_IOSPACE_DATA, DOC_READADDRESS);
+        dst16 = buf;
+        for (i = 0; i < len4; i += 2) {
+                data16 = doc_readw(docg3, DOC_IOSPACE_DATA);
+                *dst16 = data16;
+                dst16++;
+        }
+
+        if (cdr) {
+                doc_writew(docg3, DOC_IOSPACE_DATA | DOC_READADDR_ONE_BYTE,
+                           DOC_READADDRESS);
+                doc_delay(docg3, 1);
+                dst8 = (u8 *)dst16;
+                for (i = 0; i < cdr; i++) {
+                        data8 = doc_readb(docg3, DOC_IOSPACE_DATA);
+                        *dst8 = data8;
+                        dst8++;
+                }
+        }
+}
+
+/**
+ * doc_set_data_mode - Sets the flash to reliable data mode
+ * @docg3: the device
+ *
+ * The reliable data mode is a bit slower than the fast mode, but less errors
+ * occur.  Entering the reliable mode cannot be done without entering the fast
+ * mode first.
+ */
+static void doc_set_reliable_mode(struct docg3 *docg3)
+{
+        doc_dbg("doc_set_reliable_mode()\n");
+        doc_flash_sequence(docg3, DOC_SEQ_SET_MODE);
+        doc_flash_command(docg3, DOC_CMD_FAST_MODE);
+        doc_flash_command(docg3, DOC_CMD_RELIABLE_MODE);
+        doc_delay(docg3, 2);
+}
+
+/**
+ * doc_set_asic_mode - Set the ASIC mode
+ * @docg3: the device
+ * @mode: the mode
+ *
+ * The ASIC can work in 3 modes :
+ *  - RESET: all registers are zeroed
+ *  - NORMAL: receives and handles commands
+ *  - POWERDOWN: minimal poweruse, flash parts shut off
+ */
+static void doc_set_asic_mode(struct docg3 *docg3, u8 mode)
+{
+        int i;
+
+        for (i = 0; i < 12; i++)
+                doc_readb(docg3, DOC_IOSPACE_IPL);
+
+        mode |= DOC_ASICMODE_MDWREN;
+        doc_dbg("doc_set_asic_mode(%02x)\n", mode);
+        doc_writeb(docg3, mode, DOC_ASICMODE);
+        doc_writeb(docg3, ~mode, DOC_ASICMODECONFIRM);
+        doc_delay(docg3, 1);
+}
+
+/**
+ * doc_set_device_id - Sets the devices id for cascaded G3 chips
+ * @docg3: the device
+ * @id: the chip to select (amongst 0, 1, 2, 3)
+ *
+ * There can be 4 cascaded G3 chips. This function selects the one which will
+ * should be the active one.
+ */
+static void doc_set_device_id(struct docg3 *docg3, int id)
+{
+        u8 ctrl;
+
+        doc_dbg("doc_set_device_id(%d)\n", id);
+        doc_writeb(docg3, id, DOC_DEVICESELECT);
+        ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+
+        ctrl &= ~DOC_CTRL_VIOLATION;
+        ctrl |= DOC_CTRL_CE;
+        doc_writeb(docg3, ctrl, DOC_FLASHCONTROL);
+}
+
+/**
+ * doc_set_extra_page_mode - Change flash page layout
+ * @docg3: the device
+ *
+ * Normally, the flash page is split into the data (512 bytes) and the out of
+ * band data (16 bytes). For each, 4 more bytes can be accessed, where the wear
+ * leveling counters are stored.  To access this last area of 4 bytes, a special
+ * mode must be input to the flash ASIC.
+ *
+ * Returns 0 if no error occured, -EIO else.
+ */
+static int doc_set_extra_page_mode(struct docg3 *docg3)
+{
+        int fctrl;
+
+        doc_dbg("doc_set_extra_page_mode()\n");
+        doc_flash_sequence(docg3, DOC_SEQ_PAGE_SIZE_532);
+        doc_flash_command(docg3, DOC_CMD_PAGE_SIZE_532);
+        doc_delay(docg3, 2);
+
+        fctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+        if (fctrl & (DOC_CTRL_PROTECTION_ERROR | DOC_CTRL_SEQUENCE_ERROR))
+                return -EIO;
+        else
+                return 0;
+}
+
+/**
+ * doc_seek - Set both flash planes to the specified block, page for reading
+ * @docg3: the device
+ * @block0: the first plane block index
+ * @block1: the second plane block index
+ * @page: the page index within the block
+ * @wear: if true, read will occur on the 4 extra bytes of the wear area
+ * @ofs: offset in page to read
+ *
+ * Programs the flash even and odd planes to the specific block and page.
+ * Alternatively, programs the flash to the wear area of the specified page.
+ */
+static int doc_read_seek(struct docg3 *docg3, int block0, int block1, int page,
+                         int wear, int ofs)
+{
+        int sector, ret = 0;
+
+        doc_dbg("doc_seek(blocks=(%d,%d), page=%d, ofs=%d, wear=%d)\n",
+                block0, block1, page, ofs, wear);
+
+        if (!wear && (ofs < 2 * DOC_LAYOUT_PAGE_SIZE)) {
+                doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE1);
+                doc_flash_command(docg3, DOC_CMD_READ_PLANE1);
+                doc_delay(docg3, 2);
+        } else {
+                doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE2);
+                doc_flash_command(docg3, DOC_CMD_READ_PLANE2);
+                doc_delay(docg3, 2);
+        }
+
+        doc_set_reliable_mode(docg3);
+        if (wear)
+                ret = doc_set_extra_page_mode(docg3);
+        if (ret)
+                goto out;
+
+        sector = (block0 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
+        doc_flash_sequence(docg3, DOC_SEQ_READ);
+        doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
+        doc_delay(docg3, 1);
+        doc_flash_address(docg3, sector & 0xff);
+        doc_flash_address(docg3, (sector >> 8) & 0xff);
+        doc_flash_address(docg3, (sector >> 16) & 0xff);
+        doc_delay(docg3, 1);
+
+        sector = (block1 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
+        doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
+        doc_delay(docg3, 1);
+        doc_flash_address(docg3, sector & 0xff);
+        doc_flash_address(docg3, (sector >> 8) & 0xff);
+        doc_flash_address(docg3, (sector >> 16) & 0xff);
+        doc_delay(docg3, 2);
+
+out:
+        return ret;
+}
+
+/**
+ * doc_read_page_ecc_init - Initialize hardware ECC engine
+ * @docg3: the device
+ * @len: the number of bytes covered by the ECC (BCH covered)
+ *
+ * The function does initialize the hardware ECC engine to compute the Hamming
+ * ECC (on 1 byte) and the BCH Syndroms (on 7 bytes).
+ *
+ * Return 0 if succeeded, -EIO on error
+ */
+static int doc_read_page_ecc_init(struct docg3 *docg3, int len)
+{
+        doc_writew(docg3, DOC_ECCCONF0_READ_MODE
+                   | DOC_ECCCONF0_BCH_ENABLE | DOC_ECCCONF0_HAMMING_ENABLE
+                   | (len & DOC_ECCCONF0_DATA_BYTES_MASK),
+                   DOC_ECCCONF0);
+        doc_delay(docg3, 4);
+        doc_register_readb(docg3, DOC_FLASHCONTROL);
+        return doc_wait_ready(docg3);
+}
+
+/**
+ * doc_read_page_prepare - Prepares reading data from a flash page
+ * @docg3: the device
+ * @block0: the first plane block index on flash memory
+ * @block1: the second plane block index on flash memory
+ * @page: the page index in the block
+ * @offset: the offset in the page (must be a multiple of 4)
+ *
+ * Prepares the page to be read in the flash memory :
+ *   - tell ASIC to map the flash pages
+ *   - tell ASIC to be in read mode
+ *
+ * After a call to this method, a call to doc_read_page_finish is mandatory,
+ * to end the read cycle of the flash.
+ *
+ * Read data from a flash page. The length to be read must be between 0 and
+ * (page_size + oob_size + wear_size), ie. 532, and a multiple of 4 (because
+ * the extra bytes reading is not implemented).
+ *
+ * As pages are grouped by 2 (in 2 planes), reading from a page must be done
+ * in two steps:
+ *  - one read of 512 bytes at offset 0
+ *  - one read of 512 bytes at offset 512 + 16
+ *
+ * Returns 0 if successful, -EIO if a read error occured.
+ */
+static int doc_read_page_prepare(struct docg3 *docg3, int block0, int block1,
+                                 int page, int offset)
+{
+        int wear_area = 0, ret = 0;
+
+        doc_dbg("doc_read_page_prepare(blocks=(%d,%d), page=%d, ofsInPage=%d)\n",
+                block0, block1, page, offset);
+        if (offset >= DOC_LAYOUT_WEAR_OFFSET)
+                wear_area = 1;
+        if (!wear_area && offset > (DOC_LAYOUT_PAGE_OOB_SIZE * 2))
+                return -EINVAL;
+
+        doc_set_device_id(docg3, docg3->device_id);
+        ret = doc_reset_seq(docg3);
+        if (ret)
+                goto err;
+
+        /* Program the flash address block and page */
+        ret = doc_read_seek(docg3, block0, block1, page, wear_area, offset);
+        if (ret)
+                goto err;
+
+        doc_flash_command(docg3, DOC_CMD_READ_ALL_PLANES);
+        doc_delay(docg3, 2);
+        doc_wait_ready(docg3);
+
+        doc_flash_command(docg3, DOC_CMD_SET_ADDR_READ);
+        doc_delay(docg3, 1);
+        if (offset >= DOC_LAYOUT_PAGE_SIZE * 2)
+                offset -= 2 * DOC_LAYOUT_PAGE_SIZE;
+        doc_flash_address(docg3, offset >> 2);
+        doc_delay(docg3, 1);
+        doc_wait_ready(docg3);
+
+        doc_flash_command(docg3, DOC_CMD_READ_FLASH);
+
+        return 0;
+err:
+        doc_writeb(docg3, 0, DOC_DATAEND);
+        doc_delay(docg3, 2);
+        return -EIO;
+}
+
+/**
+ * doc_read_page_getbytes - Reads bytes from a prepared page
+ * @docg3: the device
+ * @len: the number of bytes to be read (must be a multiple of 4)
+ * @buf: the buffer to be filled in
+ * @first: 1 if first time read, DOC_READADDRESS should be set
+ *
+ */
+static int doc_read_page_getbytes(struct docg3 *docg3, int len, u_char *buf,
+                                  int first)
+{
+        doc_read_data_area(docg3, buf, len, first);
+        doc_delay(docg3, 2);
+        return len;
+}
+
+/**
+ * doc_get_hw_bch_syndroms - Get hardware calculated BCH syndroms
+ * @docg3: the device
+ * @syns:  the array of 7 integers where the syndroms will be stored
+ */
+static void doc_get_hw_bch_syndroms(struct docg3 *docg3, int *syns)
+{
+        int i;
+
+        for (i = 0; i < DOC_ECC_BCH_SIZE; i++)
+                syns[i] = doc_register_readb(docg3, DOC_BCH_SYNDROM(i));
+}
+
+/**
+ * doc_read_page_finish - Ends reading of a flash page
+ * @docg3: the device
+ *
+ * As a side effect, resets the chip selector to 0. This ensures that after each
+ * read operation, the floor 0 is selected. Therefore, if the systems halts, the
+ * reboot will boot on floor 0, where the IPL is.
+ */
+static void doc_read_page_finish(struct docg3 *docg3)
+{
+        doc_writeb(docg3, 0, DOC_DATAEND);
+        doc_delay(docg3, 2);
+        doc_set_device_id(docg3, 0);
+}
+
+/**
+ * calc_block_sector - Calculate blocks, pages and ofs.
+
+ * @from: offset in flash
+ * @block0: first plane block index calculated
+ * @block1: second plane block index calculated
+ * @page: page calculated
+ * @ofs: offset in page
+ */
+static void calc_block_sector(loff_t from, int *block0, int *block1, int *page,
+                              int *ofs)
+{
+        uint sector;
+
+        sector = from / DOC_LAYOUT_PAGE_SIZE;
+        *block0 = sector / (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES)
+                * DOC_LAYOUT_NBPLANES;
+        *block1 = *block0 + 1;
+        *page = sector % (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES);
+        *page /= DOC_LAYOUT_NBPLANES;
+        if (sector % 2)
+                *ofs = DOC_LAYOUT_PAGE_OOB_SIZE;
+        else
+                *ofs = 0;
+}
+
+/**
+ * doc_read - Read bytes from flash
+ * @mtd: the device
+ * @from: the offset from first block and first page, in bytes, aligned on page
+ *        size
+ * @len: the number of bytes to read (must be a multiple of 4)
+ * @retlen: the number of bytes actually read
+ * @buf: the filled in buffer
+ *
+ * Reads flash memory pages. This function does not read the OOB chunk, but only
+ * the page data.
+ *
+ * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured
+ */
+static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
+             size_t *retlen, u_char *buf)
+{
+        struct docg3 *docg3 = mtd->priv;
+        int block0, block1, page, readlen, ret, ofs = 0;
+        int syn[DOC_ECC_BCH_SIZE], eccconf1;
+        u8 oob[DOC_LAYOUT_OOB_SIZE];
+
+        ret = -EINVAL;
+        doc_dbg("doc_read(from=%lld, len=%zu, buf=%p)\n", from, len, buf);
+        if (from % DOC_LAYOUT_PAGE_SIZE)
+                goto err;
+        if (len % 4)
+                goto err;
+        calc_block_sector(from, &block0, &block1, &page, &ofs);
+        if (block1 > docg3->max_block)
+                goto err;
+
+        *retlen = 0;
+        ret = 0;
+        readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE);
+        while (!ret && len > 0) {
+                readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE);
+                ret = doc_read_page_prepare(docg3, block0, block1, page, ofs);
+                if (ret < 0)
+                        goto err;
+                ret = doc_read_page_ecc_init(docg3, DOC_ECC_BCH_COVERED_BYTES);
+                if (ret < 0)
+                        goto err_in_read;
+                ret = doc_read_page_getbytes(docg3, readlen, buf, 1);
+                if (ret < readlen)
+                        goto err_in_read;
+                ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE,
+                                             oob, 0);
+                if (ret < DOC_LAYOUT_OOB_SIZE)
+                        goto err_in_read;
+
+                *retlen += readlen;
+                buf += readlen;
+                len -= readlen;
+
+                ofs ^= DOC_LAYOUT_PAGE_OOB_SIZE;
+                if (ofs == 0)
+                        page += 2;
+                if (page > DOC_ADDR_PAGE_MASK) {
+                        page = 0;
+                        block0 += 2;
+                        block1 += 2;
+                }
+
+                /*
+                 * There should be a BCH bitstream fixing algorithm here ...
+                 * By now, a page read failure is triggered by BCH error
+                 */
+                doc_get_hw_bch_syndroms(docg3, syn);
+                eccconf1 = doc_register_readb(docg3, DOC_ECCCONF1);
+
+                doc_dbg("OOB - INFO: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+                         oob[0], oob[1], oob[2], oob[3], oob[4],
+                         oob[5], oob[6]);
+                doc_dbg("OOB - HAMMING: %02x\n", oob[7]);
+                doc_dbg("OOB - BCH_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+                         oob[8], oob[9], oob[10], oob[11], oob[12],
+                         oob[13], oob[14]);
+                doc_dbg("OOB - UNUSED: %02x\n", oob[15]);
+                doc_dbg("ECC checks: ECCConf1=%x\n", eccconf1);
+                doc_dbg("ECC BCH syndrom: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+                        syn[0], syn[1], syn[2], syn[3], syn[4], syn[5], syn[6]);
+
+                ret = -EBADMSG;
+                if (block0 >= DOC_LAYOUT_BLOCK_FIRST_DATA) {
+                        if (eccconf1 & DOC_ECCCONF1_BCH_SYNDROM_ERR)
+                                goto err_in_read;
+                        if (is_prot_seq_error(docg3))
+                                goto err_in_read;
+                }
+                doc_read_page_finish(docg3);
+        }
+
+        return 0;
+err_in_read:
+        doc_read_page_finish(docg3);
+err:
+        return ret;
+}
+
+/**
+ * doc_read_oob - Read out of band bytes from flash
+ * @mtd: the device
+ * @from: the offset from first block and first page, in bytes, aligned on page
+ *        size
+ * @ops: the mtd oob structure
+ *
+ * Reads flash memory OOB area of pages.
+ *
+ * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured
+ */
+static int doc_read_oob(struct mtd_info *mtd, loff_t from,
+                        struct mtd_oob_ops *ops)
+{
+        struct docg3 *docg3 = mtd->priv;
+        int block0, block1, page, ofs, ret;
+        u8 *buf = ops->oobbuf;
+        size_t len = ops->ooblen;
+
+        doc_dbg("doc_read_oob(from=%lld, buf=%p, len=%zu)\n", from, buf, len);
+        if (len != DOC_LAYOUT_OOB_SIZE)
+                return -EINVAL;
+
+        switch (ops->mode) {
+        case MTD_OPS_PLACE_OOB:
+                buf += ops->ooboffs;
+                break;
+        default:
+                break;
+        }
+
+        calc_block_sector(from, &block0, &block1, &page, &ofs);
+        if (block1 > docg3->max_block)
+                return -EINVAL;
+
+        ret = doc_read_page_prepare(docg3, block0, block1, page,
+                                    ofs + DOC_LAYOUT_PAGE_SIZE);
+        if (!ret)
+                ret = doc_read_page_ecc_init(docg3, DOC_LAYOUT_OOB_SIZE);
+        if (!ret)
+                ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE,
+                                             buf, 1);
+        doc_read_page_finish(docg3);
+
+        if (ret > 0)
+                ops->oobretlen = ret;
+        else
+                ops->oobretlen = 0;
+        return (ret > 0) ? 0 : ret;
+}
+
+static int doc_reload_bbt(struct docg3 *docg3)
+{
+        int block = DOC_LAYOUT_BLOCK_BBT;
+        int ret = 0, nbpages, page;
+        u_char *buf = docg3->bbt;
+
+        nbpages = DIV_ROUND_UP(docg3->max_block + 1, 8 * DOC_LAYOUT_PAGE_SIZE);
+        for (page = 0; !ret && (page < nbpages); page++) {
+                ret = doc_read_page_prepare(docg3, block, block + 1,
+                                            page + DOC_LAYOUT_PAGE_BBT, 0);
+                if (!ret)
+                        ret = doc_read_page_ecc_init(docg3,
+                                                     DOC_LAYOUT_PAGE_SIZE);
+                if (!ret)
+                        doc_read_page_getbytes(docg3, DOC_LAYOUT_PAGE_SIZE,
+                                               buf, 1);
+                buf += DOC_LAYOUT_PAGE_SIZE;
+        }
+        doc_read_page_finish(docg3);
+        return ret;
+}
+
+/**
+ * doc_block_isbad - Checks whether a block is good or not
+ * @mtd: the device
+ * @from: the offset to find the correct block
+ *
+ * Returns 1 if block is bad, 0 if block is good
+ */
+static int doc_block_isbad(struct mtd_info *mtd, loff_t from)
+{
+        struct docg3 *docg3 = mtd->priv;
+        int block0, block1, page, ofs, is_good;
+
+        calc_block_sector(from, &block0, &block1, &page, &ofs);
+        doc_dbg("doc_block_isbad(from=%lld) => block=(%d,%d), page=%d, ofs=%d\n",
+                from, block0, block1, page, ofs);
+
+        if (block0 < DOC_LAYOUT_BLOCK_FIRST_DATA)
+                return 0;
+        if (block1 > docg3->max_block)
+                return -EINVAL;
+
+        is_good = docg3->bbt[block0 >> 3] & (1 << (block0 & 0x7));
+        return !is_good;
+}
+
+/**
+ * doc_get_erase_count - Get block erase count
+ * @docg3: the device
+ * @from: the offset in which the block is.
+ *
+ * Get the number of times a block was erased. The number is the maximum of
+ * erase times between first and second plane (which should be equal normally).
+ *
+ * Returns The number of erases, or -EINVAL or -EIO on error.
+ */
+static int doc_get_erase_count(struct docg3 *docg3, loff_t from)
+{
+        u8 buf[DOC_LAYOUT_WEAR_SIZE];
+        int ret, plane1_erase_count, plane2_erase_count;
+        int block0, block1, page, ofs;
+
+        doc_dbg("doc_get_erase_count(from=%lld, buf=%p)\n", from, buf);
+        if (from % DOC_LAYOUT_PAGE_SIZE)
+                return -EINVAL;
+        calc_block_sector(from, &block0, &block1, &page, &ofs);
+        if (block1 > docg3->max_block)
+                return -EINVAL;
+
+        ret = doc_reset_seq(docg3);
+        if (!ret)
+                ret = doc_read_page_prepare(docg3, block0, block1, page,
+                                            ofs + DOC_LAYOUT_WEAR_OFFSET);
+        if (!ret)
+                ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_WEAR_SIZE,
+                                             buf, 1);
+        doc_read_page_finish(docg3);
+
+        if (ret || (buf[0] != DOC_ERASE_MARK) || (buf[2] != DOC_ERASE_MARK))
+                return -EIO;
+        plane1_erase_count = (u8)(~buf[1]) | ((u8)(~buf[4]) << 8)
+                | ((u8)(~buf[5]) << 16);
+        plane2_erase_count = (u8)(~buf[3]) | ((u8)(~buf[6]) << 8)
+                | ((u8)(~buf[7]) << 16);
+
+        return max(plane1_erase_count, plane2_erase_count);
+}
+
+/*
+ * Debug sysfs entries
+ */
+static int dbg_flashctrl_show(struct seq_file *s, void *p)
+{
+        struct docg3 *docg3 = (struct docg3 *)s->private;
+
+        int pos = 0;
+        u8 fctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+
+        pos += seq_printf(s,
+                 "FlashControl : 0x%02x (%s,CE# %s,%s,%s,flash %s)\n",
+                 fctrl,
+                 fctrl & DOC_CTRL_VIOLATION ? "protocol violation" : "-",
+                 fctrl & DOC_CTRL_CE ? "active" : "inactive",
+                 fctrl & DOC_CTRL_PROTECTION_ERROR ? "protection error" : "-",
+                 fctrl & DOC_CTRL_SEQUENCE_ERROR ? "sequence error" : "-",
+                 fctrl & DOC_CTRL_FLASHREADY ? "ready" : "not ready");
+        return pos;
+}
+DEBUGFS_RO_ATTR(flashcontrol, dbg_flashctrl_show);
+
+static int dbg_asicmode_show(struct seq_file *s, void *p)
+{
+        struct docg3 *docg3 = (struct docg3 *)s->private;
+
+        int pos = 0;
+        int pctrl = doc_register_readb(docg3, DOC_ASICMODE);
+        int mode = pctrl & 0x03;
+
+        pos += seq_printf(s,
+                         "%04x : RAM_WE=%d,RSTIN_RESET=%d,BDETCT_RESET=%d,WRITE_ENABLE=%d,POWERDOWN=%d,MODE=%d%d (",
+                         pctrl,
+                         pctrl & DOC_ASICMODE_RAM_WE ? 1 : 0,
+                         pctrl & DOC_ASICMODE_RSTIN_RESET ? 1 : 0,
+                         pctrl & DOC_ASICMODE_BDETCT_RESET ? 1 : 0,
+                         pctrl & DOC_ASICMODE_MDWREN ? 1 : 0,
+                         pctrl & DOC_ASICMODE_POWERDOWN ? 1 : 0,
+                         mode >> 1, mode & 0x1);
+
+        switch (mode) {
+        case DOC_ASICMODE_RESET:
+                pos += seq_printf(s, "reset");
+                break;
+        case DOC_ASICMODE_NORMAL:
+                pos += seq_printf(s, "normal");
+                break;
+        case DOC_ASICMODE_POWERDOWN:
+                pos += seq_printf(s, "powerdown");
+                break;
+        }
+        pos += seq_printf(s, ")\n");
+        return pos;
+}
+DEBUGFS_RO_ATTR(asic_mode, dbg_asicmode_show);
+
+static int dbg_device_id_show(struct seq_file *s, void *p)
+{
+        struct docg3 *docg3 = (struct docg3 *)s->private;
+        int pos = 0;
+        int id = doc_register_readb(docg3, DOC_DEVICESELECT);
+
+        pos += seq_printf(s, "DeviceId = %d\n", id);
+        return pos;
+}
+DEBUGFS_RO_ATTR(device_id, dbg_device_id_show);
+
+static int dbg_protection_show(struct seq_file *s, void *p)
+{
+        struct docg3 *docg3 = (struct docg3 *)s->private;
+        int pos = 0;
+        int protect = doc_register_readb(docg3, DOC_PROTECTION);
+        int dps0 = doc_register_readb(docg3, DOC_DPS0_STATUS);
+        int dps0_low = doc_register_readb(docg3, DOC_DPS0_ADDRLOW);
+        int dps0_high = doc_register_readb(docg3, DOC_DPS0_ADDRHIGH);
+        int dps1 = doc_register_readb(docg3, DOC_DPS1_STATUS);
+        int dps1_low = doc_register_readb(docg3, DOC_DPS1_ADDRLOW);
+        int dps1_high = doc_register_readb(docg3, DOC_DPS1_ADDRHIGH);
+
+        pos += seq_printf(s, "Protection = 0x%02x (",
+                         protect);
+        if (protect & DOC_PROTECT_FOUNDRY_OTP_LOCK)
+                pos += seq_printf(s, "FOUNDRY_OTP_LOCK,");
+        if (protect & DOC_PROTECT_CUSTOMER_OTP_LOCK)
+                pos += seq_printf(s, "CUSTOMER_OTP_LOCK,");
+        if (protect & DOC_PROTECT_LOCK_INPUT)
+                pos += seq_printf(s, "LOCK_INPUT,");
+        if (protect & DOC_PROTECT_STICKY_LOCK)
+                pos += seq_printf(s, "STICKY_LOCK,");
+        if (protect & DOC_PROTECT_PROTECTION_ENABLED)
+                pos += seq_printf(s, "PROTECTION ON,");
+        if (protect & DOC_PROTECT_IPL_DOWNLOAD_LOCK)
+                pos += seq_printf(s, "IPL_DOWNLOAD_LOCK,");
+        if (protect & DOC_PROTECT_PROTECTION_ERROR)
+                pos += seq_printf(s, "PROTECT_ERR,");
+        else
+                pos += seq_printf(s, "NO_PROTECT_ERR");
+        pos += seq_printf(s, ")\n");
+
+        pos += seq_printf(s, "DPS0 = 0x%02x : "
+                         "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, "
+                         "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
+                         dps0, dps0_low, dps0_high,
+                         !!(dps0 & DOC_DPS_OTP_PROTECTED),
+                         !!(dps0 & DOC_DPS_READ_PROTECTED),
+                         !!(dps0 & DOC_DPS_WRITE_PROTECTED),
+                         !!(dps0 & DOC_DPS_HW_LOCK_ENABLED),
+                         !!(dps0 & DOC_DPS_KEY_OK));
+        pos += seq_printf(s, "DPS1 = 0x%02x : "
+                         "Protected area [0x%x - 0x%x] : OTP=%d, READ=%d, "
+                         "WRITE=%d, HW_LOCK=%d, KEY_OK=%d\n",
+                         dps1, dps1_low, dps1_high,
+                         !!(dps1 & DOC_DPS_OTP_PROTECTED),
+                         !!(dps1 & DOC_DPS_READ_PROTECTED),
+                         !!(dps1 & DOC_DPS_WRITE_PROTECTED),
+                         !!(dps1 & DOC_DPS_HW_LOCK_ENABLED),
+                         !!(dps1 & DOC_DPS_KEY_OK));
+        return pos;
+}
+DEBUGFS_RO_ATTR(protection, dbg_protection_show);
+
+static int __init doc_dbg_register(struct docg3 *docg3)
+{
+        struct dentry *root, *entry;
+
+        root = debugfs_create_dir("docg3", NULL);
+        if (!root)
+                return -ENOMEM;
+
+        entry = debugfs_create_file("flashcontrol", S_IRUSR, root, docg3,
+                                  &flashcontrol_fops);
+        if (entry)
+                entry = debugfs_create_file("asic_mode", S_IRUSR, root,
+                                            docg3, &asic_mode_fops);
+        if (entry)
+                entry = debugfs_create_file("device_id", S_IRUSR, root,
+                                            docg3, &device_id_fops);
+        if (entry)
+                entry = debugfs_create_file("protection", S_IRUSR, root,
+                                            docg3, &protection_fops);
+        if (entry) {
+                docg3->debugfs_root = root;
+                return 0;
+        } else {
+                debugfs_remove_recursive(root);
+                return -ENOMEM;
+        }
+}
+
+static void __exit doc_dbg_unregister(struct docg3 *docg3)
+{
+        debugfs_remove_recursive(docg3->debugfs_root);
+}
+
+/**
+ * doc_set_driver_info - Fill the mtd_info structure and docg3 structure
+ * @chip_id: The chip ID of the supported chip
+ * @mtd: The structure to fill
+ */
+static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd)
+{
+        struct docg3 *docg3 = mtd->priv;
+        int cfg;
+
+        cfg = doc_register_readb(docg3, DOC_CONFIGURATION);
+        docg3->if_cfg = (cfg & DOC_CONF_IF_CFG ? 1 : 0);
+
+        switch (chip_id) {
+        case DOC_CHIPID_G3:
+                mtd->name = "DiskOnChip G3";
+                docg3->max_block = 2047;
+                break;
+        }
+        mtd->type = MTD_NANDFLASH;
+        /*
+         * Once write methods are added, the correct flags will be set.
+         * mtd->flags = MTD_CAP_NANDFLASH;
+         */
+        mtd->flags = MTD_CAP_ROM;
+        mtd->size = (docg3->max_block + 1) * DOC_LAYOUT_BLOCK_SIZE;
+        mtd->erasesize = DOC_LAYOUT_BLOCK_SIZE * DOC_LAYOUT_NBPLANES;
+        mtd->writesize = DOC_LAYOUT_PAGE_SIZE;
+        mtd->oobsize = DOC_LAYOUT_OOB_SIZE;
+        mtd->owner = THIS_MODULE;
+        mtd->erase = NULL;
+        mtd->point = NULL;
+        mtd->unpoint = NULL;
+        mtd->read = doc_read;
+        mtd->write = NULL;
+        mtd->read_oob = doc_read_oob;
+        mtd->write_oob = NULL;
+        mtd->sync = NULL;
+        mtd->block_isbad = doc_block_isbad;
+}
+
+/**
+ * doc_probe - Probe the IO space for a DiskOnChip G3 chip
+ * @pdev: platform device
+ *
+ * Probes for a G3 chip at the specified IO space in the platform data
+ * ressources.
+ *
+ * Returns 0 on success, -ENOMEM, -ENXIO on error
+ */
+static int __init docg3_probe(struct platform_device *pdev)
+{
+        struct device *dev = &pdev->dev;
+        struct docg3 *docg3;
+        struct mtd_info *mtd;
+        struct resource *ress;
+        int ret, bbt_nbpages;
+        u16 chip_id, chip_id_inv;
+
+        ret = -ENOMEM;
+        docg3 = kzalloc(sizeof(struct docg3), GFP_KERNEL);
+        if (!docg3)
+                goto nomem1;
+        mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
+        if (!mtd)
+                goto nomem2;
+        mtd->priv = docg3;
+
+        ret = -ENXIO;
+        ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!ress) {
+                dev_err(dev, "No I/O memory resource defined\n");
+                goto noress;
+        }
+        docg3->base = ioremap(ress->start, DOC_IOSPACE_SIZE);
+
+        docg3->dev = &pdev->dev;
+        docg3->device_id = 0;
+        doc_set_device_id(docg3, docg3->device_id);
+        doc_set_asic_mode(docg3, DOC_ASICMODE_RESET);
+        doc_set_asic_mode(docg3, DOC_ASICMODE_NORMAL);
+
+        chip_id = doc_register_readw(docg3, DOC_CHIPID);
+        chip_id_inv = doc_register_readw(docg3, DOC_CHIPID_INV);
+
+        ret = -ENODEV;
+        if (chip_id != (u16)(~chip_id_inv)) {
+                doc_info("No device found at IO addr %p\n",
+                         (void *)ress->start);
+                goto nochipfound;
+        }
+
+        switch (chip_id) {
+        case DOC_CHIPID_G3:
+                doc_info("Found a G3 DiskOnChip at addr %p\n",
+                         (void *)ress->start);
+                break;
+        default:
+                doc_err("Chip id %04x is not a DiskOnChip G3 chip\n", chip_id);
+                goto nochipfound;
+        }
+
+        doc_set_driver_info(chip_id, mtd);
+        platform_set_drvdata(pdev, mtd);
+
+        ret = -ENOMEM;
+        bbt_nbpages = DIV_ROUND_UP(docg3->max_block + 1,
+                                   8 * DOC_LAYOUT_PAGE_SIZE);
+        docg3->bbt = kzalloc(bbt_nbpages * DOC_LAYOUT_PAGE_SIZE, GFP_KERNEL);
+        if (!docg3->bbt)
+                goto nochipfound;
+        doc_reload_bbt(docg3);
+
+        ret = mtd_device_parse_register(mtd, part_probes,
+                                        NULL, NULL, 0);
+        if (ret)
+                goto register_error;
+
+        doc_dbg_register(docg3);
+        return 0;
+
+register_error:
+        kfree(docg3->bbt);
+nochipfound:
+        iounmap(docg3->base);
+noress:
+        kfree(mtd);
+nomem2:
+        kfree(docg3);
+nomem1:
+        return ret;
+}
+
+/**
+ * docg3_release - Release the driver
+ * @pdev: the platform device
+ *
+ * Returns 0
+ */
+static int __exit docg3_release(struct platform_device *pdev)
+{
+        struct mtd_info *mtd = platform_get_drvdata(pdev);
+        struct docg3 *docg3 = mtd->priv;
+
+        doc_dbg_unregister(docg3);
+        mtd_device_unregister(mtd);
+        iounmap(docg3->base);
+        kfree(docg3->bbt);
+        kfree(docg3);
+        kfree(mtd);
+        return 0;
+}
+
+static struct platform_driver g3_driver = {
+        .driver         = {
+                .name   = "docg3",
+                .owner  = THIS_MODULE,
+        },
+        .remove         = __exit_p(docg3_release),
+};
+
+static int __init docg3_init(void)
+{
+        return platform_driver_probe(&g3_driver, docg3_probe);
+}
+module_init(docg3_init);
+
+
+static void __exit docg3_exit(void)
+{
+        platform_driver_unregister(&g3_driver);
+}
+module_exit(docg3_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Robert Jarzmik <robert.jarzmik@free.fr>");
+MODULE_DESCRIPTION("MTD driver for DiskOnChip G3");
diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h
new file mode 100644
index 000000000000..0d407be24594
--- /dev/null
+++ b/drivers/mtd/devices/docg3.h
@@ -0,0 +1,297 @@
+/*
+ * Handles the M-Systems DiskOnChip G3 chip
+ *
+ * Copyright (C) 2011 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#ifndef _MTD_DOCG3_H
+#define _MTD_DOCG3_H
+
+/*
+ * Flash memory areas :
+ *   - 0x0000 .. 0x07ff : IPL
+ *   - 0x0800 .. 0x0fff : Data area
+ *   - 0x1000 .. 0x17ff : Registers
+ *   - 0x1800 .. 0x1fff : Unknown
+ */
+#define DOC_IOSPACE_IPL                 0x0000
+#define DOC_IOSPACE_DATA                0x0800
+#define DOC_IOSPACE_SIZE                0x2000
+
+/*
+ * DOC G3 layout and adressing scheme
+ *   A page address for the block "b", plane "P" and page "p":
+ *   address = [bbbb bPpp pppp]
+ */
+
+#define DOC_ADDR_PAGE_MASK              0x3f
+#define DOC_ADDR_BLOCK_SHIFT            6
+#define DOC_LAYOUT_NBPLANES             2
+#define DOC_LAYOUT_PAGES_PER_BLOCK      64
+#define DOC_LAYOUT_PAGE_SIZE            512
+#define DOC_LAYOUT_OOB_SIZE             16
+#define DOC_LAYOUT_WEAR_SIZE            8
+#define DOC_LAYOUT_PAGE_OOB_SIZE                                \
+        (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_SIZE)
+#define DOC_LAYOUT_WEAR_OFFSET          (DOC_LAYOUT_PAGE_OOB_SIZE * 2)
+#define DOC_LAYOUT_BLOCK_SIZE                                   \
+        (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_PAGE_SIZE)
+#define DOC_ECC_BCH_SIZE                7
+#define DOC_ECC_BCH_COVERED_BYTES                               \
+        (DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_PAGEINFO_SZ +    \
+         DOC_LAYOUT_OOB_HAMMING_SZ + DOC_LAYOUT_OOB_BCH_SZ)
+
+/*
+ * Blocks distribution
+ */
+#define DOC_LAYOUT_BLOCK_BBT            0
+#define DOC_LAYOUT_BLOCK_OTP            0
+#define DOC_LAYOUT_BLOCK_FIRST_DATA     6
+
+#define DOC_LAYOUT_PAGE_BBT             4
+
+/*
+ * Extra page OOB (16 bytes wide) layout
+ */
+#define DOC_LAYOUT_OOB_PAGEINFO_OFS     0
+#define DOC_LAYOUT_OOB_HAMMING_OFS      7
+#define DOC_LAYOUT_OOB_BCH_OFS          8
+#define DOC_LAYOUT_OOB_UNUSED_OFS       15
+#define DOC_LAYOUT_OOB_PAGEINFO_SZ      7
+#define DOC_LAYOUT_OOB_HAMMING_SZ       1
+#define DOC_LAYOUT_OOB_BCH_SZ           7
+#define DOC_LAYOUT_OOB_UNUSED_SZ        1
+
+
+#define DOC_CHIPID_G3                   0x200
+#define DOC_ERASE_MARK                  0xaa
+/*
+ * Flash registers
+ */
+#define DOC_CHIPID                      0x1000
+#define DOC_TEST                        0x1004
+#define DOC_BUSLOCK                     0x1006
+#define DOC_ENDIANCONTROL               0x1008
+#define DOC_DEVICESELECT                0x100a
+#define DOC_ASICMODE                    0x100c
+#define DOC_CONFIGURATION               0x100e
+#define DOC_INTERRUPTCONTROL            0x1010
+#define DOC_READADDRESS                 0x101a
+#define DOC_DATAEND                     0x101e
+#define DOC_INTERRUPTSTATUS             0x1020
+
+#define DOC_FLASHSEQUENCE               0x1032
+#define DOC_FLASHCOMMAND                0x1034
+#define DOC_FLASHADDRESS                0x1036
+#define DOC_FLASHCONTROL                0x1038
+#define DOC_NOP                         0x103e
+
+#define DOC_ECCCONF0                    0x1040
+#define DOC_ECCCONF1                    0x1042
+#define DOC_ECCPRESET                   0x1044
+#define DOC_HAMMINGPARITY               0x1046
+#define DOC_BCH_SYNDROM(idx)            (0x1048 + (idx << 1))
+
+#define DOC_PROTECTION                  0x1056
+#define DOC_DPS0_ADDRLOW                0x1060
+#define DOC_DPS0_ADDRHIGH               0x1062
+#define DOC_DPS1_ADDRLOW                0x1064
+#define DOC_DPS1_ADDRHIGH               0x1066
+#define DOC_DPS0_STATUS                 0x106c
+#define DOC_DPS1_STATUS                 0x106e
+
+#define DOC_ASICMODECONFIRM             0x1072
+#define DOC_CHIPID_INV                  0x1074
+
+/*
+ * Flash sequences
+ * A sequence is preset before one or more commands are input to the chip.
+ */
+#define DOC_SEQ_RESET                   0x00
+#define DOC_SEQ_PAGE_SIZE_532           0x03
+#define DOC_SEQ_SET_MODE                0x09
+#define DOC_SEQ_READ                    0x12
+#define DOC_SEQ_SET_PLANE1              0x0e
+#define DOC_SEQ_SET_PLANE2              0x10
+#define DOC_SEQ_PAGE_SETUP              0x1d
+
+/*
+ * Flash commands
+ */
+#define DOC_CMD_READ_PLANE1             0x00
+#define DOC_CMD_SET_ADDR_READ           0x05
+#define DOC_CMD_READ_ALL_PLANES         0x30
+#define DOC_CMD_READ_PLANE2             0x50
+#define DOC_CMD_READ_FLASH              0xe0
+#define DOC_CMD_PAGE_SIZE_532           0x3c
+
+#define DOC_CMD_PROG_BLOCK_ADDR         0x60
+#define DOC_CMD_PROG_CYCLE1             0x80
+#define DOC_CMD_PROG_CYCLE2             0x10
+#define DOC_CMD_ERASECYCLE2             0xd0
+
+#define DOC_CMD_RELIABLE_MODE           0x22
+#define DOC_CMD_FAST_MODE               0xa2
+
+#define DOC_CMD_RESET                   0xff
+
+/*
+ * Flash register : DOC_FLASHCONTROL
+ */
+#define DOC_CTRL_VIOLATION              0x20
+#define DOC_CTRL_CE                     0x10
+#define DOC_CTRL_UNKNOWN_BITS           0x08
+#define DOC_CTRL_PROTECTION_ERROR       0x04
+#define DOC_CTRL_SEQUENCE_ERROR         0x02
+#define DOC_CTRL_FLASHREADY             0x01
+
+/*
+ * Flash register : DOC_ASICMODE
+ */
+#define DOC_ASICMODE_RESET              0x00
+#define DOC_ASICMODE_NORMAL             0x01
+#define DOC_ASICMODE_POWERDOWN          0x02
+#define DOC_ASICMODE_MDWREN             0x04
+#define DOC_ASICMODE_BDETCT_RESET       0x08
+#define DOC_ASICMODE_RSTIN_RESET        0x10
+#define DOC_ASICMODE_RAM_WE             0x20
+
+/*
+ * Flash register : DOC_ECCCONF0
+ */
+#define DOC_ECCCONF0_READ_MODE          0x8000
+#define DOC_ECCCONF0_AUTO_ECC_ENABLE    0x4000
+#define DOC_ECCCONF0_HAMMING_ENABLE     0x1000
+#define DOC_ECCCONF0_BCH_ENABLE         0x0800
+#define DOC_ECCCONF0_DATA_BYTES_MASK    0x07ff
+
+/*
+ * Flash register : DOC_ECCCONF1
+ */
+#define DOC_ECCCONF1_BCH_SYNDROM_ERR    0x80
+#define DOC_ECCCONF1_UNKOWN1            0x40
+#define DOC_ECCCONF1_UNKOWN2            0x20
+#define DOC_ECCCONF1_UNKOWN3            0x10
+#define DOC_ECCCONF1_HAMMING_BITS_MASK  0x0f
+
+/*
+ * Flash register : DOC_PROTECTION
+ */
+#define DOC_PROTECT_FOUNDRY_OTP_LOCK    0x01
+#define DOC_PROTECT_CUSTOMER_OTP_LOCK   0x02
+#define DOC_PROTECT_LOCK_INPUT          0x04
+#define DOC_PROTECT_STICKY_LOCK         0x08
+#define DOC_PROTECT_PROTECTION_ENABLED  0x10
+#define DOC_PROTECT_IPL_DOWNLOAD_LOCK   0x20
+#define DOC_PROTECT_PROTECTION_ERROR    0x80
+
+/*
+ * Flash register : DOC_DPS0_STATUS and DOC_DPS1_STATUS
+ */
+#define DOC_DPS_OTP_PROTECTED           0x01
+#define DOC_DPS_READ_PROTECTED          0x02
+#define DOC_DPS_WRITE_PROTECTED         0x04
+#define DOC_DPS_HW_LOCK_ENABLED         0x08
+#define DOC_DPS_KEY_OK                  0x80
+
+/*
+ * Flash register : DOC_CONFIGURATION
+ */
+#define DOC_CONF_IF_CFG                 0x80
+#define DOC_CONF_MAX_ID_MASK            0x30
+#define DOC_CONF_VCCQ_3V                0x01
+
+/*
+ * Flash register : DOC_READADDRESS
+ */
+#define DOC_READADDR_INC                0x8000
+#define DOC_READADDR_ONE_BYTE           0x4000
+#define DOC_READADDR_ADDR_MASK          0x1fff
+
+/**
+ * struct docg3 - DiskOnChip driver private data
+ * @dev: the device currently under control
+ * @base: mapped IO space
+ * @device_id: number of the cascaded DoCG3 device (0, 1, 2 or 3)
+ * @if_cfg: if true, reads are on 16bits, else reads are on 8bits
+ * @bbt: bad block table cache
+ * @debugfs_root: debugfs root node
+ */
+struct docg3 {
+        struct device *dev;
+        void __iomem *base;
+        unsigned int device_id:4;
+        unsigned int if_cfg:1;
+        int max_block;
+        u8 *bbt;
+        struct dentry *debugfs_root;
+};
+
+#define doc_err(fmt, arg...) dev_err(docg3->dev, (fmt), ## arg)
+#define doc_info(fmt, arg...) dev_info(docg3->dev, (fmt), ## arg)
+#define doc_dbg(fmt, arg...) dev_dbg(docg3->dev, (fmt), ## arg)
+#define doc_vdbg(fmt, arg...) dev_vdbg(docg3->dev, (fmt), ## arg)
+
+#define DEBUGFS_RO_ATTR(name, show_fct) \
+        static int name##_open(struct inode *inode, struct file *file) \
+        { return single_open(file, show_fct, inode->i_private); }      \
+        static const struct file_operations name##_fops = { \
+                .owner = THIS_MODULE, \
+                .open = name##_open, \
+                .llseek = seq_lseek, \
+                .read = seq_read, \
+                .release = single_release \
+        };
+#endif
+
+/*
+ * Trace events part
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM docg3
+
+#if !defined(_MTD_DOCG3_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#define _MTD_DOCG3_TRACE
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(docg3_io,
+            TP_PROTO(int op, int width, u16 reg, int val),
+            TP_ARGS(op, width, reg, val),
+            TP_STRUCT__entry(
+                    __field(int, op)
+                    __field(unsigned char, width)
+                    __field(u16, reg)
+                    __field(int, val)),
+            TP_fast_assign(
+                    __entry->op = op;
+                    __entry->width = width;
+                    __entry->reg = reg;
+                    __entry->val = val;),
+            TP_printk("docg3: %s%02d reg=%04x, val=%04x",
+                      __entry->op ? "write" : "read", __entry->width,
+                      __entry->reg, __entry->val)
+        );
+#endif
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE docg3
+#include <trace/define_trace.h>
diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c
index d374603493a7..45116bb30297 100644
--- a/drivers/mtd/devices/docprobe.c
+++ b/drivers/mtd/devices/docprobe.c
@@ -50,11 +50,6 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/doc2000.h>
 
-/* Where to look for the devices? */
-#ifndef CONFIG_MTD_DOCPROBE_ADDRESS
-#define CONFIG_MTD_DOCPROBE_ADDRESS 0
-#endif
-
 
 static unsigned long doc_config_location = CONFIG_MTD_DOCPROBE_ADDRESS;
 module_param(doc_config_location, ulong, 0);
diff --git a/drivers/mtd/devices/lart.c b/drivers/mtd/devices/lart.c
index 772a0ff89e0f..3a11ea628e58 100644
--- a/drivers/mtd/devices/lart.c
+++ b/drivers/mtd/devices/lart.c
@@ -34,9 +34,6 @@
 /* debugging */
 //#define LART_DEBUG
 
-/* partition support */
-#define HAVE_PARTITIONS
-
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -44,9 +41,7 @@
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/mtd/mtd.h>
-#ifdef HAVE_PARTITIONS
 #include <linux/mtd/partitions.h>
-#endif
 
 #ifndef CONFIG_SA1100_LART
 #error This is for LART architecture only
@@ -598,7 +593,6 @@ static struct mtd_erase_region_info erase_regions[] = {
         }
 };
 
-#ifdef HAVE_PARTITIONS
 static struct mtd_partition lart_partitions[] = {
         /* blob */
         {
@@ -619,7 +613,7 @@ static struct mtd_partition lart_partitions[] = {
                 .size   = INITRD_LEN,           /* MTDPART_SIZ_FULL */
         }
 };
-#endif
+#define NUM_PARTITIONS ARRAY_SIZE(lart_partitions)
 
 static int __init lart_flash_init (void)
 {
@@ -668,7 +662,6 @@ static int __init lart_flash_init (void)
                            result,mtd.eraseregions[result].erasesize,mtd.eraseregions[result].erasesize / 1024,
                            result,mtd.eraseregions[result].numblocks);
 
-#ifdef HAVE_PARTITIONS
    printk ("\npartitions = %d\n", ARRAY_SIZE(lart_partitions));
 
    for (result = 0; result < ARRAY_SIZE(lart_partitions); result++)
@@ -681,25 +674,16 @@ static int __init lart_flash_init (void)
                          result,lart_partitions[result].offset,
                          result,lart_partitions[result].size,lart_partitions[result].size / 1024);
 #endif
-#endif
 
-#ifndef HAVE_PARTITIONS
-   result = mtd_device_register(&mtd, NULL, 0);
-#else
    result = mtd_device_register(&mtd, lart_partitions,
                                 ARRAY_SIZE(lart_partitions));
-#endif
 
    return (result);
 }
 
 static void __exit lart_flash_exit (void)
 {
-#ifndef HAVE_PARTITIONS
-   mtd_device_unregister(&mtd);
-#else
    mtd_device_unregister(&mtd);
-#endif
 }
 
 module_init (lart_flash_init);
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 35180e475c4c..884904d3f9d2 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -30,6 +30,7 @@
 #include <linux/mtd/cfi.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/of_platform.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
@@ -88,7 +89,6 @@ struct m25p {
         struct spi_device       *spi;
         struct mutex            lock;
         struct mtd_info         mtd;
-        unsigned                partitioned:1;
         u16                     page_size;
         u16                     addr_width;
         u8                      erase_opcode;
@@ -209,9 +209,8 @@ static int wait_till_ready(struct m25p *flash)
  */
 static int erase_chip(struct m25p *flash)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %lldKiB\n",
-              dev_name(&flash->spi->dev), __func__,
-              (long long)(flash->mtd.size >> 10));
+        pr_debug("%s: %s %lldKiB\n", dev_name(&flash->spi->dev), __func__,
+                        (long long)(flash->mtd.size >> 10));
 
         /* Wait until finished previous write command. */
         if (wait_till_ready(flash))
@@ -250,9 +249,8 @@ static int m25p_cmdsz(struct m25p *flash)
  */
 static int erase_sector(struct m25p *flash, u32 offset)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: %s %dKiB at 0x%08x\n",
-                        dev_name(&flash->spi->dev), __func__,
-                        flash->mtd.erasesize / 1024, offset);
+        pr_debug("%s: %s %dKiB at 0x%08x\n", dev_name(&flash->spi->dev),
+                        __func__, flash->mtd.erasesize / 1024, offset);
 
         /* Wait until finished previous write command. */
         if (wait_till_ready(flash))
@@ -286,9 +284,9 @@ static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
         u32 addr,len;
         uint32_t rem;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%llx, len %lld\n",
-              dev_name(&flash->spi->dev), __func__, "at",
-              (long long)instr->addr, (long long)instr->len);
+        pr_debug("%s: %s at 0x%llx, len %lld\n", dev_name(&flash->spi->dev),
+                        __func__, (long long)instr->addr,
+                        (long long)instr->len);
 
         /* sanity checks */
         if (instr->addr + instr->len > flash->mtd.size)
@@ -348,9 +346,8 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
         struct spi_transfer t[2];
         struct spi_message m;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n",
-                        dev_name(&flash->spi->dev), __func__, "from",
-                        (u32)from, len);
+        pr_debug("%s: %s from 0x%08x, len %zd\n", dev_name(&flash->spi->dev),
+                        __func__, (u32)from, len);
 
         /* sanity checks */
         if (!len)
@@ -417,9 +414,8 @@ static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
         struct spi_transfer t[2];
         struct spi_message m;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n",
-                        dev_name(&flash->spi->dev), __func__, "to",
-                        (u32)to, len);
+        pr_debug("%s: %s to 0x%08x, len %zd\n", dev_name(&flash->spi->dev),
+                        __func__, (u32)to, len);
 
         *retlen = 0;
 
@@ -510,9 +506,8 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
         size_t actual;
         int cmd_sz, ret;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: %s %s 0x%08x, len %zd\n",
-                        dev_name(&flash->spi->dev), __func__, "to",
-                        (u32)to, len);
+        pr_debug("%s: %s to 0x%08x, len %zd\n", dev_name(&flash->spi->dev),
+                        __func__, (u32)to, len);
 
         *retlen = 0;
 
@@ -661,6 +656,7 @@ static const struct spi_device_id m25p_ids[] = {
         { "at25fs040",  INFO(0x1f6604, 0, 64 * 1024,   8, SECT_4K) },
 
         { "at25df041a", INFO(0x1f4401, 0, 64 * 1024,   8, SECT_4K) },
+        { "at25df321a", INFO(0x1f4701, 0, 64 * 1024,  64, SECT_4K) },
         { "at25df641",  INFO(0x1f4800, 0, 64 * 1024, 128, SECT_4K) },
 
         { "at26f004",   INFO(0x1f0400, 0, 64 * 1024,  8, SECT_4K) },
@@ -671,6 +667,7 @@ static const struct spi_device_id m25p_ids[] = {
         /* EON -- en25xxx */
         { "en25f32", INFO(0x1c3116, 0, 64 * 1024,  64, SECT_4K) },
         { "en25p32", INFO(0x1c2016, 0, 64 * 1024,  64, 0) },
+        { "en25q32b", INFO(0x1c3016, 0, 64 * 1024,  64, 0) },
         { "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
 
         /* Intel/Numonyx -- xxxs33b */
@@ -788,8 +785,8 @@ static const struct spi_device_id *__devinit jedec_probe(struct spi_device *spi)
          */
         tmp = spi_write_then_read(spi, &code, 1, id, 5);
         if (tmp < 0) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n",
-                        dev_name(&spi->dev), tmp);
+                pr_debug("%s: error %d reading JEDEC ID\n",
+                                dev_name(&spi->dev), tmp);
                 return ERR_PTR(tmp);
         }
         jedec = id[0];
@@ -825,8 +822,12 @@ static int __devinit m25p_probe(struct spi_device *spi)
         struct m25p                     *flash;
         struct flash_info               *info;
         unsigned                        i;
-        struct mtd_partition            *parts = NULL;
-        int                             nr_parts = 0;
+        struct mtd_part_parser_data     ppdata;
+
+#ifdef CONFIG_MTD_OF_PARTS
+        if (!of_device_is_available(spi->dev.of_node))
+                return -ENODEV;
+#endif
 
         /* Platform data helps sort out which chip type we have, as
          * well as how this board partitions it.  If we don't have
@@ -928,6 +929,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
         if (info->flags & M25P_NO_ERASE)
                 flash->mtd.flags |= MTD_NO_ERASE;
 
+        ppdata.of_node = spi->dev.of_node;
         flash->mtd.dev.parent = &spi->dev;
         flash->page_size = info->page_size;
 
@@ -945,8 +947,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
         dev_info(&spi->dev, "%s (%lld Kbytes)\n", id->name,
                         (long long)flash->mtd.size >> 10);
 
-        DEBUG(MTD_DEBUG_LEVEL2,
-                "mtd .name = %s, .size = 0x%llx (%lldMiB) "
+        pr_debug("mtd .name = %s, .size = 0x%llx (%lldMiB) "
                         ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
                 flash->mtd.name,
                 (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
@@ -955,8 +956,7 @@ static int __devinit m25p_probe(struct spi_device *spi)
 
         if (flash->mtd.numeraseregions)
                 for (i = 0; i < flash->mtd.numeraseregions; i++)
-                        DEBUG(MTD_DEBUG_LEVEL2,
-                                "mtd.eraseregions[%d] = { .offset = 0x%llx, "
+                        pr_debug("mtd.eraseregions[%d] = { .offset = 0x%llx, "
                                 ".erasesize = 0x%.8x (%uKiB), "
                                 ".numblocks = %d }\n",
                                 i, (long long)flash->mtd.eraseregions[i].offset,
@@ -968,41 +968,9 @@ static int __devinit m25p_probe(struct spi_device *spi)
         /* partitions should match sector boundaries; and it may be good to
          * use readonly partitions for writeprotected sectors (BP2..BP0).
          */
-        if (mtd_has_cmdlinepart()) {
-                static const char *part_probes[]
-                        = { "cmdlinepart", NULL, };
-
-                nr_parts = parse_mtd_partitions(&flash->mtd,
-                                                part_probes, &parts, 0);
-        }
-
-        if (nr_parts <= 0 && data && data->parts) {
-                parts = data->parts;
-                nr_parts = data->nr_parts;
-        }
-
-#ifdef CONFIG_MTD_OF_PARTS
-        if (nr_parts <= 0 && spi->dev.of_node) {
-                nr_parts = of_mtd_parse_partitions(&spi->dev,
-                                                   spi->dev.of_node, &parts);
-        }
-#endif
-
-        if (nr_parts > 0) {
-                for (i = 0; i < nr_parts; i++) {
-                        DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
-                              "{.name = %s, .offset = 0x%llx, "
-                              ".size = 0x%llx (%lldKiB) }\n",
-                              i, parts[i].name,
-                              (long long)parts[i].offset,
-                              (long long)parts[i].size,
-                              (long long)(parts[i].size >> 10));
-                }
-                flash->partitioned = 1;
-        }
-
-        return mtd_device_register(&flash->mtd, parts, nr_parts) == 1 ?
-                -ENODEV : 0;
+        return mtd_device_parse_register(&flash->mtd, NULL, &ppdata,
+                        data ? data->parts : NULL,
+                        data ? data->nr_parts : 0);
 }
 
 
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 13749d458a31..d75c7af18a63 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -17,6 +17,8 @@
 #include <linux/mutex.h>
 #include <linux/err.h>
 #include <linux/math64.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
@@ -24,7 +26,6 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 
-
 /*
  * DataFlash is a kind of SPI flash.  Most AT45 chips have two buffers in
  * each chip, which may be used for double buffered I/O; but this driver
@@ -98,6 +99,16 @@ struct dataflash {
         struct mtd_info         mtd;
 };
 
+#ifdef CONFIG_OF
+static const struct of_device_id dataflash_dt_ids[] = {
+        { .compatible = "atmel,at45", },
+        { .compatible = "atmel,dataflash", },
+        { /* sentinel */ }
+};
+#else
+#define dataflash_dt_ids NULL
+#endif
+
 /* ......................................................................... */
 
 /*
@@ -122,7 +133,7 @@ static int dataflash_waitready(struct spi_device *spi)
         for (;;) {
                 status = dataflash_status(spi);
                 if (status < 0) {
-                        DEBUG(MTD_DEBUG_LEVEL1, "%s: status %d?\n",
+                        pr_debug("%s: status %d?\n",
                                         dev_name(&spi->dev), status);
                         status = 0;
                 }
@@ -149,7 +160,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
         uint8_t                 *command;
         uint32_t                rem;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: erase addr=0x%llx len 0x%llx\n",
+        pr_debug("%s: erase addr=0x%llx len 0x%llx\n",
               dev_name(&spi->dev), (long long)instr->addr,
               (long long)instr->len);
 
@@ -187,7 +198,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
                 command[2] = (uint8_t)(pageaddr >> 8);
                 command[3] = 0;
 
-                DEBUG(MTD_DEBUG_LEVEL3, "ERASE %s: (%x) %x %x %x [%i]\n",
+                pr_debug("ERASE %s: (%x) %x %x %x [%i]\n",
                         do_block ? "block" : "page",
                         command[0], command[1], command[2], command[3],
                         pageaddr);
@@ -238,8 +249,8 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
         uint8_t                 *command;
         int                     status;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: read 0x%x..0x%x\n",
-                dev_name(&priv->spi->dev), (unsigned)from, (unsigned)(from + len));
+        pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev),
+                        (unsigned)from, (unsigned)(from + len));
 
         *retlen = 0;
 
@@ -255,7 +266,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
 
         command = priv->command;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "READ: (%x) %x %x %x\n",
+        pr_debug("READ: (%x) %x %x %x\n",
                 command[0], command[1], command[2], command[3]);
 
         spi_message_init(&msg);
@@ -287,7 +298,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
                 *retlen = msg.actual_length - 8;
                 status = 0;
         } else
-                DEBUG(MTD_DEBUG_LEVEL1, "%s: read %x..%x --> %d\n",
+                pr_debug("%s: read %x..%x --> %d\n",
                         dev_name(&priv->spi->dev),
                         (unsigned)from, (unsigned)(from + len),
                         status);
@@ -314,7 +325,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
         int                     status = -EINVAL;
         uint8_t                 *command;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "%s: write 0x%x..0x%x\n",
+        pr_debug("%s: write 0x%x..0x%x\n",
                 dev_name(&spi->dev), (unsigned)to, (unsigned)(to + len));
 
         *retlen = 0;
@@ -340,7 +351,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
 
         mutex_lock(&priv->lock);
         while (remaining > 0) {
-                DEBUG(MTD_DEBUG_LEVEL3, "write @ %i:%i len=%i\n",
+                pr_debug("write @ %i:%i len=%i\n",
                         pageaddr, offset, writelen);
 
                 /* REVISIT:
@@ -368,12 +379,12 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
                         command[2] = (addr & 0x0000FF00) >> 8;
                         command[3] = 0;
 
-                        DEBUG(MTD_DEBUG_LEVEL3, "TRANSFER: (%x) %x %x %x\n",
+                        pr_debug("TRANSFER: (%x) %x %x %x\n",
                                 command[0], command[1], command[2], command[3]);
 
                         status = spi_sync(spi, &msg);
                         if (status < 0)
-                                DEBUG(MTD_DEBUG_LEVEL1, "%s: xfer %u -> %d \n",
+                                pr_debug("%s: xfer %u -> %d\n",
                                         dev_name(&spi->dev), addr, status);
 
                         (void) dataflash_waitready(priv->spi);
@@ -386,7 +397,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
                 command[2] = (addr & 0x0000FF00) >> 8;
                 command[3] = (addr & 0x000000FF);
 
-                DEBUG(MTD_DEBUG_LEVEL3, "PROGRAM: (%x) %x %x %x\n",
+                pr_debug("PROGRAM: (%x) %x %x %x\n",
                         command[0], command[1], command[2], command[3]);
 
                 x[1].tx_buf = writebuf;
@@ -395,7 +406,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
                 status = spi_sync(spi, &msg);
                 spi_transfer_del(x + 1);
                 if (status < 0)
-                        DEBUG(MTD_DEBUG_LEVEL1, "%s: pgm %u/%u -> %d \n",
+                        pr_debug("%s: pgm %u/%u -> %d\n",
                                 dev_name(&spi->dev), addr, writelen, status);
 
                 (void) dataflash_waitready(priv->spi);
@@ -410,12 +421,12 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
                 command[2] = (addr & 0x0000FF00) >> 8;
                 command[3] = 0;
 
-                DEBUG(MTD_DEBUG_LEVEL3, "COMPARE: (%x) %x %x %x\n",
+                pr_debug("COMPARE: (%x) %x %x %x\n",
                         command[0], command[1], command[2], command[3]);
 
                 status = spi_sync(spi, &msg);
                 if (status < 0)
-                        DEBUG(MTD_DEBUG_LEVEL1, "%s: compare %u -> %d \n",
+                        pr_debug("%s: compare %u -> %d\n",
                                 dev_name(&spi->dev), addr, status);
 
                 status = dataflash_waitready(priv->spi);
@@ -634,11 +645,10 @@ add_dataflash_otp(struct spi_device *spi, char *name,
 {
         struct dataflash                *priv;
         struct mtd_info                 *device;
+        struct mtd_part_parser_data     ppdata;
         struct flash_platform_data      *pdata = spi->dev.platform_data;
         char                            *otp_tag = "";
         int                             err = 0;
-        struct mtd_partition            *parts;
-        int                             nr_parts = 0;
 
         priv = kzalloc(sizeof *priv, GFP_KERNEL);
         if (!priv)
@@ -677,28 +687,11 @@ add_dataflash_otp(struct spi_device *spi, char *name,
                         pagesize, otp_tag);
         dev_set_drvdata(&spi->dev, priv);
 
-        if (mtd_has_cmdlinepart()) {
-                static const char *part_probes[] = { "cmdlinepart", NULL, };
-
-                nr_parts = parse_mtd_partitions(device, part_probes, &parts,
-                                                0);
-        }
+        ppdata.of_node = spi->dev.of_node;
+        err = mtd_device_parse_register(device, NULL, &ppdata,
+                        pdata ? pdata->parts : NULL,
+                        pdata ? pdata->nr_parts : 0);
 
-        if (nr_parts <= 0 && pdata && pdata->parts) {
-                parts = pdata->parts;
-                nr_parts = pdata->nr_parts;
-        }
-
-        if (nr_parts > 0) {
-                priv->partitioned = 1;
-                err = mtd_device_register(device, parts, nr_parts);
-                goto out;
-        }
-
-        if (mtd_device_register(device, NULL, 0) == 1)
-                err = -ENODEV;
-
-out:
         if (!err)
                 return 0;
 
@@ -787,7 +780,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
          */
         tmp = spi_write_then_read(spi, &code, 1, id, 3);
         if (tmp < 0) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: error %d reading JEDEC ID\n",
+                pr_debug("%s: error %d reading JEDEC ID\n",
                         dev_name(&spi->dev), tmp);
                 return ERR_PTR(tmp);
         }
@@ -804,7 +797,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
                         tmp < ARRAY_SIZE(dataflash_data);
                         tmp++, info++) {
                 if (info->jedec_id == jedec) {
-                        DEBUG(MTD_DEBUG_LEVEL1, "%s: OTP, sector protect%s\n",
+                        pr_debug("%s: OTP, sector protect%s\n",
                                 dev_name(&spi->dev),
                                 (info->flags & SUP_POW2PS)
                                         ? ", binary pagesize" : ""
@@ -812,8 +805,7 @@ static struct flash_info *__devinit jedec_probe(struct spi_device *spi)
                         if (info->flags & SUP_POW2PS) {
                                 status = dataflash_status(spi);
                                 if (status < 0) {
-                                        DEBUG(MTD_DEBUG_LEVEL1,
-                                                "%s: status error %d\n",
+                                        pr_debug("%s: status error %d\n",
                                                 dev_name(&spi->dev), status);
                                         return ERR_PTR(status);
                                 }
@@ -878,7 +870,7 @@ static int __devinit dataflash_probe(struct spi_device *spi)
          */
         status = dataflash_status(spi);
         if (status <= 0 || status == 0xff) {
-                DEBUG(MTD_DEBUG_LEVEL1, "%s: status error %d\n",
+                pr_debug("%s: status error %d\n",
                                 dev_name(&spi->dev), status);
                 if (status == 0 || status == 0xff)
                         status = -ENODEV;
@@ -914,14 +906,14 @@ static int __devinit dataflash_probe(struct spi_device *spi)
                 break;
         /* obsolete AT45DB1282 not (yet?) supported */
         default:
-                DEBUG(MTD_DEBUG_LEVEL1, "%s: unsupported device (%x)\n",
-                                dev_name(&spi->dev), status & 0x3c);
+                pr_debug("%s: unsupported device (%x)\n", dev_name(&spi->dev),
+                                status & 0x3c);
                 status = -ENODEV;
         }
 
         if (status < 0)
-                DEBUG(MTD_DEBUG_LEVEL1, "%s: add_dataflash --> %d\n",
-                                dev_name(&spi->dev), status);
+                pr_debug("%s: add_dataflash --> %d\n", dev_name(&spi->dev),
+                                status);
 
         return status;
 }
@@ -931,7 +923,7 @@ static int __devexit dataflash_remove(struct spi_device *spi)
         struct dataflash        *flash = dev_get_drvdata(&spi->dev);
         int                     status;
 
-        DEBUG(MTD_DEBUG_LEVEL1, "%s: remove\n", dev_name(&spi->dev));
+        pr_debug("%s: remove\n", dev_name(&spi->dev));
 
         status = mtd_device_unregister(&flash->mtd);
         if (status == 0) {
@@ -946,6 +938,7 @@ static struct spi_driver dataflash_driver = {
                 .name           = "mtd_dataflash",
                 .bus            = &spi_bus_type,
                 .owner          = THIS_MODULE,
+                .of_match_table = dataflash_dt_ids,
         },
 
         .probe          = dataflash_probe,
diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index 83e80c65d6e7..d38ef3bffe8d 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -52,8 +52,6 @@ struct sst25l_flash {
         struct spi_device       *spi;
         struct mutex            lock;
         struct mtd_info         mtd;
-
-        int                     partitioned;
 };
 
 struct flash_info {
@@ -381,8 +379,6 @@ static int __devinit sst25l_probe(struct spi_device *spi)
         struct sst25l_flash *flash;
         struct flash_platform_data *data;
         int ret, i;
-        struct mtd_partition *parts = NULL;
-        int nr_parts = 0;
 
         flash_info = sst25l_match_device(spi);
         if (!flash_info)
@@ -414,8 +410,7 @@ static int __devinit sst25l_probe(struct spi_device *spi)
         dev_info(&spi->dev, "%s (%lld KiB)\n", flash_info->name,
                  (long long)flash->mtd.size >> 10);
 
-        DEBUG(MTD_DEBUG_LEVEL2,
-              "mtd .name = %s, .size = 0x%llx (%lldMiB) "
+        pr_debug("mtd .name = %s, .size = 0x%llx (%lldMiB) "
               ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
               flash->mtd.name,
               (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
@@ -423,37 +418,10 @@ static int __devinit sst25l_probe(struct spi_device *spi)
               flash->mtd.numeraseregions);
 
 
-        if (mtd_has_cmdlinepart()) {
-                static const char *part_probes[] = {"cmdlinepart", NULL};
-
-                nr_parts = parse_mtd_partitions(&flash->mtd,
-                                                part_probes,
-                                                &parts, 0);
-        }
-
-        if (nr_parts <= 0 && data && data->parts) {
-                parts = data->parts;
-                nr_parts = data->nr_parts;
-        }
-
-        if (nr_parts > 0) {
-                for (i = 0; i < nr_parts; i++) {
-                        DEBUG(MTD_DEBUG_LEVEL2, "partitions[%d] = "
-                              "{.name = %s, .offset = 0x%llx, "
-                              ".size = 0x%llx (%lldKiB) }\n",
-                              i, parts[i].name,
-                              (long long)parts[i].offset,
-                              (long long)parts[i].size,
-                              (long long)(parts[i].size >> 10));
-                }
-
-                flash->partitioned = 1;
-                return mtd_device_register(&flash->mtd, parts,
-                                           nr_parts);
-        }
-
-        ret = mtd_device_register(&flash->mtd, NULL, 0);
-        if (ret == 1) {
+        ret = mtd_device_parse_register(&flash->mtd, NULL, 0,
+                        data ? data->parts : NULL,
+                        data ? data->nr_parts : 0);
+        if (ret) {
                 kfree(flash);
                 dev_set_drvdata(&spi->dev, NULL);
                 return -ENODEV;
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index 037b399df3f1..c7382bb686c6 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -339,7 +339,7 @@ static int erase_xfer(partition_t *part,
     struct erase_info *erase;
 
     xfer = &part->XferInfo[xfernum];
-    DEBUG(1, "ftl_cs: erasing xfer unit at 0x%x\n", xfer->Offset);
+    pr_debug("ftl_cs: erasing xfer unit at 0x%x\n", xfer->Offset);
     xfer->state = XFER_ERASING;
 
     /* Is there a free erase slot? Always in MTD. */
@@ -415,7 +415,7 @@ static int prepare_xfer(partition_t *part, int i)
     xfer = &part->XferInfo[i];
     xfer->state = XFER_FAILED;
 
-    DEBUG(1, "ftl_cs: preparing xfer unit at 0x%x\n", xfer->Offset);
+    pr_debug("ftl_cs: preparing xfer unit at 0x%x\n", xfer->Offset);
 
     /* Write the transfer unit header */
     header = part->header;
@@ -476,7 +476,7 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
 
     eun = &part->EUNInfo[srcunit];
     xfer = &part->XferInfo[xferunit];
-    DEBUG(2, "ftl_cs: copying block 0x%x to 0x%x\n",
+    pr_debug("ftl_cs: copying block 0x%x to 0x%x\n",
           eun->Offset, xfer->Offset);
 
 
@@ -598,7 +598,7 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
     unit with the fewest erases, and usually pick the data unit with
     the most deleted blocks.  But with a small probability, pick the
     oldest data unit instead.  This means that we generally postpone
-    the next reclaimation as long as possible, but shuffle static
+    the next reclamation as long as possible, but shuffle static
     stuff around a bit for wear leveling.
 
 ======================================================================*/
@@ -609,8 +609,8 @@ static int reclaim_block(partition_t *part)
     uint32_t best;
     int queued, ret;
 
-    DEBUG(0, "ftl_cs: reclaiming space...\n");
-    DEBUG(3, "NumTransferUnits == %x\n", part->header.NumTransferUnits);
+    pr_debug("ftl_cs: reclaiming space...\n");
+    pr_debug("NumTransferUnits == %x\n", part->header.NumTransferUnits);
     /* Pick the least erased transfer unit */
     best = 0xffffffff; xfer = 0xffff;
     do {
@@ -618,22 +618,22 @@ static int reclaim_block(partition_t *part)
         for (i = 0; i < part->header.NumTransferUnits; i++) {
             int n=0;
             if (part->XferInfo[i].state == XFER_UNKNOWN) {
-                DEBUG(3,"XferInfo[%d].state == XFER_UNKNOWN\n",i);
+                pr_debug("XferInfo[%d].state == XFER_UNKNOWN\n",i);
                 n=1;
                 erase_xfer(part, i);
             }
             if (part->XferInfo[i].state == XFER_ERASING) {
-                DEBUG(3,"XferInfo[%d].state == XFER_ERASING\n",i);
+                pr_debug("XferInfo[%d].state == XFER_ERASING\n",i);
                 n=1;
                 queued = 1;
             }
             else if (part->XferInfo[i].state == XFER_ERASED) {
-                DEBUG(3,"XferInfo[%d].state == XFER_ERASED\n",i);
+                pr_debug("XferInfo[%d].state == XFER_ERASED\n",i);
                 n=1;
                 prepare_xfer(part, i);
             }
             if (part->XferInfo[i].state == XFER_PREPARED) {
-                DEBUG(3,"XferInfo[%d].state == XFER_PREPARED\n",i);
+                pr_debug("XferInfo[%d].state == XFER_PREPARED\n",i);
                 n=1;
                 if (part->XferInfo[i].EraseCount <= best) {
                     best = part->XferInfo[i].EraseCount;
@@ -641,12 +641,12 @@ static int reclaim_block(partition_t *part)
                 }
             }
                 if (!n)
-                    DEBUG(3,"XferInfo[%d].state == %x\n",i, part->XferInfo[i].state);
+                    pr_debug("XferInfo[%d].state == %x\n",i, part->XferInfo[i].state);
 
         }
         if (xfer == 0xffff) {
             if (queued) {
-                DEBUG(1, "ftl_cs: waiting for transfer "
+                pr_debug("ftl_cs: waiting for transfer "
                       "unit to be prepared...\n");
                 if (part->mbd.mtd->sync)
                         part->mbd.mtd->sync(part->mbd.mtd);
@@ -656,7 +656,7 @@ static int reclaim_block(partition_t *part)
                     printk(KERN_NOTICE "ftl_cs: reclaim failed: no "
                            "suitable transfer units!\n");
                 else
-                    DEBUG(1, "ftl_cs: reclaim failed: no "
+                    pr_debug("ftl_cs: reclaim failed: no "
                           "suitable transfer units!\n");
 
                 return -EIO;
@@ -666,7 +666,7 @@ static int reclaim_block(partition_t *part)
 
     eun = 0;
     if ((jiffies % shuffle_freq) == 0) {
-        DEBUG(1, "ftl_cs: recycling freshest block...\n");
+        pr_debug("ftl_cs: recycling freshest block...\n");
         best = 0xffffffff;
         for (i = 0; i < part->DataUnits; i++)
             if (part->EUNInfo[i].EraseCount <= best) {
@@ -686,7 +686,7 @@ static int reclaim_block(partition_t *part)
                 printk(KERN_NOTICE "ftl_cs: reclaim failed: "
                        "no free blocks!\n");
             else
-                DEBUG(1,"ftl_cs: reclaim failed: "
+                pr_debug("ftl_cs: reclaim failed: "
                        "no free blocks!\n");
 
             return -EIO;
@@ -771,7 +771,7 @@ static uint32_t find_free(partition_t *part)
         printk(KERN_NOTICE "ftl_cs: bad free list!\n");
         return 0;
     }
-    DEBUG(2, "ftl_cs: found free block at %d in %d\n", blk, eun);
+    pr_debug("ftl_cs: found free block at %d in %d\n", blk, eun);
     return blk;
 
 } /* find_free */
@@ -791,7 +791,7 @@ static int ftl_read(partition_t *part, caddr_t buffer,
     int ret;
     size_t offset, retlen;
 
-    DEBUG(2, "ftl_cs: ftl_read(0x%p, 0x%lx, %ld)\n",
+    pr_debug("ftl_cs: ftl_read(0x%p, 0x%lx, %ld)\n",
           part, sector, nblocks);
     if (!(part->state & FTL_FORMATTED)) {
         printk(KERN_NOTICE "ftl_cs: bad partition\n");
@@ -840,7 +840,7 @@ static int set_bam_entry(partition_t *part, uint32_t log_addr,
     int ret;
     size_t retlen, offset;
 
-    DEBUG(2, "ftl_cs: set_bam_entry(0x%p, 0x%x, 0x%x)\n",
+    pr_debug("ftl_cs: set_bam_entry(0x%p, 0x%x, 0x%x)\n",
           part, log_addr, virt_addr);
     bsize = 1 << part->header.EraseUnitSize;
     eun = log_addr / bsize;
@@ -905,7 +905,7 @@ static int ftl_write(partition_t *part, caddr_t buffer,
     int ret;
     size_t retlen, offset;
 
-    DEBUG(2, "ftl_cs: ftl_write(0x%p, %ld, %ld)\n",
+    pr_debug("ftl_cs: ftl_write(0x%p, %ld, %ld)\n",
           part, sector, nblocks);
     if (!(part->state & FTL_FORMATTED)) {
         printk(KERN_NOTICE "ftl_cs: bad partition\n");
@@ -1011,7 +1011,7 @@ static int ftl_discardsect(struct mtd_blktrans_dev *dev,
         partition_t *part = (void *)dev;
         uint32_t bsize = 1 << part->header.EraseUnitSize;
 
-        DEBUG(1, "FTL erase sector %ld for %d sectors\n",
+        pr_debug("FTL erase sector %ld for %d sectors\n",
               sector, nr_sects);
 
         while (nr_sects) {
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index d7592e67d048..dd034efd1875 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -63,14 +63,12 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
                 return;
         }
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: add_mtd for %s\n", mtd->name);
+        pr_debug("INFTL: add_mtd for %s\n", mtd->name);
 
         inftl = kzalloc(sizeof(*inftl), GFP_KERNEL);
 
-        if (!inftl) {
-                printk(KERN_WARNING "INFTL: Out of memory for data structures\n");
+        if (!inftl)
                 return;
-        }
 
         inftl->mbd.mtd = mtd;
         inftl->mbd.devnum = -1;
@@ -133,7 +131,7 @@ static void inftl_remove_dev(struct mtd_blktrans_dev *dev)
 {
         struct INFTLrecord *inftl = (void *)dev;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: remove_dev (i=%d)\n", dev->devnum);
+        pr_debug("INFTL: remove_dev (i=%d)\n", dev->devnum);
 
         del_mtd_blktrans_dev(dev);
 
@@ -154,7 +152,7 @@ int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs & (mtd->writesize - 1);
         ops.ooblen = len;
         ops.oobbuf = buf;
@@ -174,7 +172,7 @@ int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs & (mtd->writesize - 1);
         ops.ooblen = len;
         ops.oobbuf = buf;
@@ -194,7 +192,7 @@ static int inftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs;
         ops.ooblen = mtd->oobsize;
         ops.oobbuf = oob;
@@ -215,16 +213,16 @@ static u16 INFTL_findfreeblock(struct INFTLrecord *inftl, int desperate)
         u16 pot = inftl->LastFreeEUN;
         int silly = inftl->nb_blocks;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findfreeblock(inftl=%p,"
-                "desperate=%d)\n", inftl, desperate);
+        pr_debug("INFTL: INFTL_findfreeblock(inftl=%p,desperate=%d)\n",
+                        inftl, desperate);
 
         /*
          * Normally, we force a fold to happen before we run out of free
          * blocks completely.
          */
         if (!desperate && inftl->numfreeEUNs < 2) {
-                DEBUG(MTD_DEBUG_LEVEL1, "INFTL: there are too few free "
-                        "EUNs (%d)\n", inftl->numfreeEUNs);
+                pr_debug("INFTL: there are too few free EUNs (%d)\n",
+                                inftl->numfreeEUNs);
                 return BLOCK_NIL;
         }
 
@@ -259,8 +257,8 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
         struct inftl_oob oob;
         size_t retlen;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d,"
-                "pending=%d)\n", inftl, thisVUC, pendingblock);
+        pr_debug("INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d,pending=%d)\n",
+                        inftl, thisVUC, pendingblock);
 
         memset(BlockMap, 0xff, sizeof(BlockMap));
         memset(BlockDeleted, 0, sizeof(BlockDeleted));
@@ -323,8 +321,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
          * Chain, and the Erase Unit into which we are supposed to be copying.
          * Go for it.
          */
-        DEBUG(MTD_DEBUG_LEVEL1, "INFTL: folding chain %d into unit %d\n",
-                thisVUC, targetEUN);
+        pr_debug("INFTL: folding chain %d into unit %d\n", thisVUC, targetEUN);
 
         for (block = 0; block < inftl->EraseSize/SECTORSIZE ; block++) {
                 unsigned char movebuf[SECTORSIZE];
@@ -349,14 +346,13 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
                 ret = mtd->read(mtd, (inftl->EraseSize * BlockMap[block]) +
                                 (block * SECTORSIZE), SECTORSIZE, &retlen,
                                 movebuf);
-                if (ret < 0 && ret != -EUCLEAN) {
+                if (ret < 0 && !mtd_is_bitflip(ret)) {
                         ret = mtd->read(mtd,
                                         (inftl->EraseSize * BlockMap[block]) +
                                         (block * SECTORSIZE), SECTORSIZE,
                                         &retlen, movebuf);
                         if (ret != -EIO)
-                                DEBUG(MTD_DEBUG_LEVEL1, "INFTL: error went "
-                                      "away on retry?\n");
+                                pr_debug("INFTL: error went away on retry?\n");
                 }
                 memset(&oob, 0xff, sizeof(struct inftl_oob));
                 oob.b.Status = oob.b.Status1 = SECTOR_USED;
@@ -372,8 +368,7 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
          * is important, by doing oldest first if we crash/reboot then it
          * it is relatively simple to clean up the mess).
          */
-        DEBUG(MTD_DEBUG_LEVEL1, "INFTL: want to erase virtual chain %d\n",
-                thisVUC);
+        pr_debug("INFTL: want to erase virtual chain %d\n", thisVUC);
 
         for (;;) {
                 /* Find oldest unit in chain. */
@@ -421,7 +416,7 @@ static u16 INFTL_makefreeblock(struct INFTLrecord *inftl, unsigned pendingblock)
         u16 ChainLength = 0, thislen;
         u16 chain, EUN;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_makefreeblock(inftl=%p,"
+        pr_debug("INFTL: INFTL_makefreeblock(inftl=%p,"
                 "pending=%d)\n", inftl, pendingblock);
 
         for (chain = 0; chain < inftl->nb_blocks; chain++) {
@@ -484,8 +479,8 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
         size_t retlen;
         int silly, silly2 = 3;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_findwriteunit(inftl=%p,"
-                "block=%d)\n", inftl, block);
+        pr_debug("INFTL: INFTL_findwriteunit(inftl=%p,block=%d)\n",
+                        inftl, block);
 
         do {
                 /*
@@ -501,8 +496,8 @@ static inline u16 INFTL_findwriteunit(struct INFTLrecord *inftl, unsigned block)
                                        blockofs, 8, &retlen, (char *)&bci);
 
                         status = bci.Status | bci.Status1;
-                        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: status of block %d in "
-                                "EUN %d is %x\n", block , writeEUN, status);
+                        pr_debug("INFTL: status of block %d in EUN %d is %x\n",
+                                        block , writeEUN, status);
 
                         switch(status) {
                         case SECTOR_FREE:
@@ -555,9 +550,9 @@ hitused:
                          * Hopefully we free something, lets try again.
                          * This time we are desperate...
                          */
-                        DEBUG(MTD_DEBUG_LEVEL1, "INFTL: using desperate==1 "
-                                "to find free EUN to accommodate write to "
-                                "VUC %d\n", thisVUC);
+                        pr_debug("INFTL: using desperate==1 to find free EUN "
+                                        "to accommodate write to VUC %d\n",
+                                        thisVUC);
                         writeEUN = INFTL_findfreeblock(inftl, 1);
                         if (writeEUN == BLOCK_NIL) {
                                 /*
@@ -647,7 +642,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
         struct inftl_bci bci;
         size_t retlen;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_trydeletechain(inftl=%p,"
+        pr_debug("INFTL: INFTL_trydeletechain(inftl=%p,"
                 "thisVUC=%d)\n", inftl, thisVUC);
 
         memset(BlockUsed, 0, sizeof(BlockUsed));
@@ -711,7 +706,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
          * For each block in the chain free it and make it available
          * for future use. Erase from the oldest unit first.
          */
-        DEBUG(MTD_DEBUG_LEVEL1, "INFTL: deleting empty VUC %d\n", thisVUC);
+        pr_debug("INFTL: deleting empty VUC %d\n", thisVUC);
 
         for (;;) {
                 u16 *prevEUN = &inftl->VUtable[thisVUC];
@@ -719,7 +714,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
 
                 /* If the chain is all gone already, we're done */
                 if (thisEUN == BLOCK_NIL) {
-                        DEBUG(MTD_DEBUG_LEVEL2, "INFTL: Empty VUC %d for deletion was already absent\n", thisEUN);
+                        pr_debug("INFTL: Empty VUC %d for deletion was already absent\n", thisEUN);
                         return;
                 }
 
@@ -731,7 +726,7 @@ static void INFTL_trydeletechain(struct INFTLrecord *inftl, unsigned thisVUC)
                         thisEUN = *prevEUN;
                 }
 
-                DEBUG(MTD_DEBUG_LEVEL3, "Deleting EUN %d from VUC %d\n",
+                pr_debug("Deleting EUN %d from VUC %d\n",
                       thisEUN, thisVUC);
 
                 if (INFTL_formatblock(inftl, thisEUN) < 0) {
@@ -767,7 +762,7 @@ static int INFTL_deleteblock(struct INFTLrecord *inftl, unsigned block)
         size_t retlen;
         struct inftl_bci bci;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_deleteblock(inftl=%p,"
+        pr_debug("INFTL: INFTL_deleteblock(inftl=%p,"
                 "block=%d)\n", inftl, block);
 
         while (thisEUN < inftl->nb_blocks) {
@@ -826,7 +821,7 @@ static int inftl_writeblock(struct mtd_blktrans_dev *mbd, unsigned long block,
         struct inftl_oob oob;
         char *p, *pend;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_writeblock(inftl=%p,block=%ld,"
+        pr_debug("INFTL: inftl_writeblock(inftl=%p,block=%ld,"
                 "buffer=%p)\n", inftl, block, buffer);
 
         /* Is block all zero? */
@@ -876,7 +871,7 @@ static int inftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
         struct inftl_bci bci;
         size_t retlen;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: inftl_readblock(inftl=%p,block=%ld,"
+        pr_debug("INFTL: inftl_readblock(inftl=%p,block=%ld,"
                 "buffer=%p)\n", inftl, block, buffer);
 
         while (thisEUN < inftl->nb_blocks) {
@@ -922,7 +917,7 @@ foundit:
                 int ret = mtd->read(mtd, ptr, SECTORSIZE, &retlen, buffer);
 
                 /* Handle corrected bit flips gracefully */
-                if (ret < 0 && ret != -EUCLEAN)
+                if (ret < 0 && !mtd_is_bitflip(ret))
                         return -EIO;
         }
         return 0;
diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c
index 104052e774b0..2ff601f816ce 100644
--- a/drivers/mtd/inftlmount.c
+++ b/drivers/mtd/inftlmount.c
@@ -53,7 +53,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
         struct INFTLPartition *ip;
         size_t retlen;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl);
+        pr_debug("INFTL: find_boot_record(inftl=%p)\n", inftl);
 
         /*
          * Assume logical EraseSize == physical erasesize for starting the
@@ -139,24 +139,20 @@ static int find_boot_record(struct INFTLrecord *inftl)
                 mh->FormatFlags = le32_to_cpu(mh->FormatFlags);
                 mh->PercentUsed = le32_to_cpu(mh->PercentUsed);
 
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
-                if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
-                        printk("INFTL: Media Header ->\n"
-                                "    bootRecordID          = %s\n"
-                                "    NoOfBootImageBlocks   = %d\n"
-                                "    NoOfBinaryPartitions  = %d\n"
-                                "    NoOfBDTLPartitions    = %d\n"
-                                "    BlockMultiplerBits    = %d\n"
-                                "    FormatFlgs            = %d\n"
-                                "    OsakVersion           = 0x%x\n"
-                                "    PercentUsed           = %d\n",
-                                mh->bootRecordID, mh->NoOfBootImageBlocks,
-                                mh->NoOfBinaryPartitions,
-                                mh->NoOfBDTLPartitions,
-                                mh->BlockMultiplierBits, mh->FormatFlags,
-                                mh->OsakVersion, mh->PercentUsed);
-                }
-#endif
+                pr_debug("INFTL: Media Header ->\n"
+                         "    bootRecordID          = %s\n"
+                         "    NoOfBootImageBlocks   = %d\n"
+                         "    NoOfBinaryPartitions  = %d\n"
+                         "    NoOfBDTLPartitions    = %d\n"
+                         "    BlockMultiplerBits    = %d\n"
+                         "    FormatFlgs            = %d\n"
+                         "    OsakVersion           = 0x%x\n"
+                         "    PercentUsed           = %d\n",
+                         mh->bootRecordID, mh->NoOfBootImageBlocks,
+                         mh->NoOfBinaryPartitions,
+                         mh->NoOfBDTLPartitions,
+                         mh->BlockMultiplierBits, mh->FormatFlags,
+                         mh->OsakVersion, mh->PercentUsed);
 
                 if (mh->NoOfBDTLPartitions == 0) {
                         printk(KERN_WARNING "INFTL: Media Header sanity check "
@@ -200,19 +196,15 @@ static int find_boot_record(struct INFTLrecord *inftl)
                         ip->spareUnits = le32_to_cpu(ip->spareUnits);
                         ip->Reserved0 = le32_to_cpu(ip->Reserved0);
 
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
-                        if (CONFIG_MTD_DEBUG_VERBOSE >= 2) {
-                                printk("    PARTITION[%d] ->\n"
-                                        "        virtualUnits    = %d\n"
-                                        "        firstUnit       = %d\n"
-                                        "        lastUnit        = %d\n"
-                                        "        flags           = 0x%x\n"
-                                        "        spareUnits      = %d\n",
-                                        i, ip->virtualUnits, ip->firstUnit,
-                                        ip->lastUnit, ip->flags,
-                                        ip->spareUnits);
-                        }
-#endif
+                        pr_debug("    PARTITION[%d] ->\n"
+                                 "        virtualUnits    = %d\n"
+                                 "        firstUnit       = %d\n"
+                                 "        lastUnit        = %d\n"
+                                 "        flags           = 0x%x\n"
+                                 "        spareUnits      = %d\n",
+                                 i, ip->virtualUnits, ip->firstUnit,
+                                 ip->lastUnit, ip->flags,
+                                 ip->spareUnits);
 
                         if (ip->Reserved0 != ip->firstUnit) {
                                 struct erase_info *instr = &inftl->instr;
@@ -375,7 +367,7 @@ static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address,
  *
  * Return: 0 when succeed, -1 on error.
  *
- * ToDo: 1. Is it neceressary to check_free_sector after erasing ??
+ * ToDo: 1. Is it necessary to check_free_sector after erasing ??
  */
 int INFTL_formatblock(struct INFTLrecord *inftl, int block)
 {
@@ -385,8 +377,7 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
         struct mtd_info *mtd = inftl->mbd.mtd;
         int physblock;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_formatblock(inftl=%p,"
-                "block=%d)\n", inftl, block);
+        pr_debug("INFTL: INFTL_formatblock(inftl=%p,block=%d)\n", inftl, block);
 
         memset(instr, 0, sizeof(struct erase_info));
 
@@ -476,30 +467,30 @@ void INFTL_dumptables(struct INFTLrecord *s)
 {
         int i;
 
-        printk("-------------------------------------------"
+        pr_debug("-------------------------------------------"
                 "----------------------------------\n");
 
-        printk("VUtable[%d] ->", s->nb_blocks);
+        pr_debug("VUtable[%d] ->", s->nb_blocks);
         for (i = 0; i < s->nb_blocks; i++) {
                 if ((i % 8) == 0)
-                        printk("\n%04x: ", i);
-                printk("%04x ", s->VUtable[i]);
+                        pr_debug("\n%04x: ", i);
+                pr_debug("%04x ", s->VUtable[i]);
         }
 
-        printk("\n-------------------------------------------"
+        pr_debug("\n-------------------------------------------"
                 "----------------------------------\n");
 
-        printk("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks);
+        pr_debug("PUtable[%d-%d=%d] ->", s->firstEUN, s->lastEUN, s->nb_blocks);
         for (i = 0; i <= s->lastEUN; i++) {
                 if ((i % 8) == 0)
-                        printk("\n%04x: ", i);
-                printk("%04x ", s->PUtable[i]);
+                        pr_debug("\n%04x: ", i);
+                pr_debug("%04x ", s->PUtable[i]);
         }
 
-        printk("\n-------------------------------------------"
+        pr_debug("\n-------------------------------------------"
                 "----------------------------------\n");
 
-        printk("INFTL ->\n"
+        pr_debug("INFTL ->\n"
                 "  EraseSize       = %d\n"
                 "  h/s/c           = %d/%d/%d\n"
                 "  numvunits       = %d\n"
@@ -513,7 +504,7 @@ void INFTL_dumptables(struct INFTLrecord *s)
                 s->numvunits, s->firstEUN, s->lastEUN, s->numfreeEUNs,
                 s->LastFreeEUN, s->nb_blocks, s->nb_boot_blocks);
 
-        printk("\n-------------------------------------------"
+        pr_debug("\n-------------------------------------------"
                 "----------------------------------\n");
 }
 
@@ -521,25 +512,25 @@ void INFTL_dumpVUchains(struct INFTLrecord *s)
 {
         int logical, block, i;
 
-        printk("-------------------------------------------"
+        pr_debug("-------------------------------------------"
                 "----------------------------------\n");
 
-        printk("INFTL Virtual Unit Chains:\n");
+        pr_debug("INFTL Virtual Unit Chains:\n");
         for (logical = 0; logical < s->nb_blocks; logical++) {
                 block = s->VUtable[logical];
                 if (block > s->nb_blocks)
                         continue;
-                printk("  LOGICAL %d --> %d ", logical, block);
+                pr_debug("  LOGICAL %d --> %d ", logical, block);
                 for (i = 0; i < s->nb_blocks; i++) {
                         if (s->PUtable[block] == BLOCK_NIL)
                                 break;
                         block = s->PUtable[block];
-                        printk("%d ", block);
+                        pr_debug("%d ", block);
                 }
-                printk("\n");
+                pr_debug("\n");
         }
 
-        printk("-------------------------------------------"
+        pr_debug("-------------------------------------------"
                 "----------------------------------\n");
 }
 
@@ -555,7 +546,7 @@ int INFTL_mount(struct INFTLrecord *s)
         int i;
         u8 *ANACtable, ANAC;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_mount(inftl=%p)\n", s);
+        pr_debug("INFTL: INFTL_mount(inftl=%p)\n", s);
 
         /* Search for INFTL MediaHeader and Spare INFTL Media Header */
         if (find_boot_record(s) < 0) {
@@ -585,7 +576,7 @@ int INFTL_mount(struct INFTLrecord *s)
          * NOTEXPLORED state. Then at the end we will try to format it and
          * mark it as free.
          */
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 1, explore each unit\n");
+        pr_debug("INFTL: pass 1, explore each unit\n");
         for (first_block = s->firstEUN; first_block <= s->lastEUN; first_block++) {
                 if (s->PUtable[first_block] != BLOCK_NOTEXPLORED)
                         continue;
@@ -717,17 +708,14 @@ int INFTL_mount(struct INFTLrecord *s)
                 logical_block = BLOCK_NIL;
         }
 
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
-        if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
-                INFTL_dumptables(s);
-#endif
+        INFTL_dumptables(s);
 
         /*
          * Second pass, check for infinite loops in chains. These are
          * possible because we don't update the previous pointers when
          * we fold chains. No big deal, just fix them up in PUtable.
          */
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 2, validate virtual chains\n");
+        pr_debug("INFTL: pass 2, validate virtual chains\n");
         for (logical_block = 0; logical_block < s->numvunits; logical_block++) {
                 block = s->VUtable[logical_block];
                 last_block = BLOCK_NIL;
@@ -772,12 +760,8 @@ int INFTL_mount(struct INFTLrecord *s)
                 }
         }
 
-#ifdef CONFIG_MTD_DEBUG_VERBOSE
-        if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
-                INFTL_dumptables(s);
-        if (CONFIG_MTD_DEBUG_VERBOSE >= 2)
-                INFTL_dumpVUchains(s);
-#endif
+        INFTL_dumptables(s);
+        INFTL_dumpVUchains(s);
 
         /*
          * Third pass, format unreferenced blocks and init free block count.
@@ -785,7 +769,7 @@ int INFTL_mount(struct INFTLrecord *s)
         s->numfreeEUNs = 0;
         s->LastFreeEUN = BLOCK_NIL;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "INFTL: pass 3, format unused blocks\n");
+        pr_debug("INFTL: pass 3, format unused blocks\n");
         for (block = s->firstEUN; block <= s->lastEUN; block++) {
                 if (s->PUtable[block] == BLOCK_NOTEXPLORED) {
                         printk("INFTL: unreferenced block %d, formatting it\n",
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index c0c328c5b133..8e0c4bf9f7fb 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -41,8 +41,6 @@ config MTD_PHYSMAP_START
           are mapped on your particular target board. Refer to the
           memory map which should hopefully be in the documentation for
           your board.
-          Ignore this option if you use run-time physmap configuration
-          (i.e., run-time calling physmap_configure()).
 
 config MTD_PHYSMAP_LEN
         hex "Physical length of flash mapping"
@@ -55,8 +53,6 @@ config MTD_PHYSMAP_LEN
           than the total amount of flash present. Refer to the memory
           map which should hopefully be in the documentation for your
           board.
-          Ignore this option if you use run-time physmap configuration
-          (i.e., run-time calling physmap_configure()).
 
 config MTD_PHYSMAP_BANKWIDTH
         int "Bank width in octets"
@@ -67,8 +63,6 @@ config MTD_PHYSMAP_BANKWIDTH
           in octets. For example, if you have a data bus width of 32
           bits, you would set the bus width octet value to 4. This is
           used internally by the CFI drivers.
-          Ignore this option if you use run-time physmap configuration
-          (i.e., run-time calling physmap_configure()).
 
 config MTD_PHYSMAP_OF
         tristate "Flash device in physical memory map based on OF description"
@@ -260,7 +254,6 @@ config MTD_BCM963XX
 config MTD_LANTIQ
         tristate "Lantiq SoC NOR support"
         depends on LANTIQ
-        select MTD_PARTITIONS
         help
           Support for NOR flash attached to the Lantiq SoC's External Bus Unit.
 
@@ -339,10 +332,6 @@ config MTD_SOLUTIONENGINE
           This enables access to the flash chips on the Hitachi SolutionEngine and
           similar boards. Say 'Y' if you are building a kernel for such a board.
 
-config MTD_ARM_INTEGRATOR
-        tristate "CFI Flash device mapped on ARM Integrator/P720T"
-        depends on ARM && MTD_CFI
-
 config MTD_CDB89712
         tristate "Cirrus CDB89712 evaluation board mappings"
         depends on MTD_CFI && ARCH_CDB89712
@@ -398,13 +387,6 @@ config MTD_AUTCPU12
           This enables access to the NV-RAM on autronix autcpu12 board.
           If you have such a board, say 'Y'.
 
-config MTD_EDB7312
-        tristate "CFI Flash device mapped on EDB7312"
-        depends on ARCH_EDB7312 && MTD_CFI
-        help
-          This enables access to the CFI Flash on the Cogent EDB7312 board.
-          If you have such a board, say 'Y' here.
-
 config MTD_IMPA7
         tristate "JEDEC Flash device mapped on impA7"
         depends on ARM && MTD_JEDECPROBE
@@ -412,14 +394,6 @@ config MTD_IMPA7
           This enables access to the NOR Flash on the impA7 board of
           implementa GmbH. If you have such a board, say 'Y' here.
 
-config MTD_CEIVA
-        tristate "JEDEC Flash device mapped on Ceiva/Polaroid PhotoMax Digital Picture Frame"
-        depends on MTD_JEDECPROBE && ARCH_CEIVA
-        help
-          This enables access to the flash chips on the Ceiva/Polaroid
-          PhotoMax Digital Picture Frame.
-          If you have such a device, say 'Y'.
-
 config MTD_H720X
         tristate "Hynix evaluation board mappings"
         depends on MTD_CFI && ( ARCH_H7201 || ARCH_H7202 )
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index cb48b11affff..45dcb8b14f22 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_MTD_CK804XROM)	+= ck804xrom.o
 obj-$(CONFIG_MTD_TSUNAMI)       += tsunami_flash.o
 obj-$(CONFIG_MTD_PXA2XX)        += pxa2xx-flash.o
 obj-$(CONFIG_MTD_MBX860)        += mbx860.o
-obj-$(CONFIG_MTD_CEIVA)         += ceiva.o
 obj-$(CONFIG_MTD_OCTAGON)       += octagon-5066.o
 obj-$(CONFIG_MTD_PHYSMAP)       += physmap.o
 obj-$(CONFIG_MTD_PHYSMAP_OF)    += physmap_of.o
@@ -40,7 +39,6 @@ obj-$(CONFIG_MTD_DBOX2)		+= dbox2-flash.o
 obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
 obj-$(CONFIG_MTD_PCI)           += pci.o
 obj-$(CONFIG_MTD_AUTCPU12)      += autcpu12-nvram.o
-obj-$(CONFIG_MTD_EDB7312)       += edb7312.o
 obj-$(CONFIG_MTD_IMPA7)         += impa7.o
 obj-$(CONFIG_MTD_FORTUNET)      += fortunet.o
 obj-$(CONFIG_MTD_UCLINUX)       += uclinux.o
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 67815eed2f00..6d6b2b5674ee 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -41,7 +41,6 @@ struct async_state {
         uint32_t flash_ambctl0, flash_ambctl1;
         uint32_t save_ambctl0, save_ambctl1;
         unsigned long irq_flags;
-        struct mtd_partition *parts;
 };
 
 static void switch_to_flash(struct async_state *state)
@@ -165,18 +164,8 @@ static int __devinit bfin_flash_probe(struct platform_device *pdev)
                 return -ENXIO;
         }
 
-        ret = parse_mtd_partitions(state->mtd, part_probe_types, &pdata->parts, 0);
-        if (ret > 0) {
-                pr_devinit(KERN_NOTICE DRIVER_NAME ": Using commandline partition definition\n");
-                mtd_device_register(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");
-                mtd_device_register(state->mtd, pdata->parts, pdata->nr_parts);
-        } else {
-                pr_devinit(KERN_NOTICE DRIVER_NAME ": no partition info available, registering whole flash at once\n");
-                mtd_device_register(state->mtd, NULL, 0);
-        }
+        mtd_device_parse_register(state->mtd, part_probe_types, 0,
+                        pdata->parts, pdata->nr_parts);
 
         platform_set_drvdata(pdev, state);
 
@@ -188,7 +177,6 @@ static int __devexit bfin_flash_remove(struct platform_device *pdev)
         struct async_state *state = platform_get_drvdata(pdev);
         gpio_free(state->enet_flash_pin);
         mtd_device_unregister(state->mtd);
-        kfree(state->parts);
         map_destroy(state->mtd);
         kfree(state);
         return 0;
diff --git a/drivers/mtd/maps/ceiva.c b/drivers/mtd/maps/ceiva.c
deleted file mode 100644
index 06f9c9815720..000000000000
--- a/drivers/mtd/maps/ceiva.c
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * Ceiva flash memory driver.
- * Copyright (C) 2002 Rob Scott <rscott@mtrob.fdns.net>
- *
- * Note: this driver supports jedec compatible devices. Modification
- * for CFI compatible devices should be straight forward: change
- * jedec_probe to cfi_probe.
- *
- * Based on: sa1100-flash.c, which has the following copyright:
- * Flash memory access on SA11x0 based devices
- *
- * (C) 2000 Nicolas Pitre <nico@fluxnic.net>
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/concat.h>
-
-#include <mach/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/io.h>
-#include <asm/sizes.h>
-
-/*
- * This isn't complete yet, so...
- */
-#define CONFIG_MTD_CEIVA_STATICMAP
-
-#ifdef CONFIG_MTD_CEIVA_STATICMAP
-/*
- * See include/linux/mtd/partitions.h for definition of the mtd_partition
- * structure.
- *
- * Please note:
- *  1. The flash size given should be the largest flash size that can
- *     be accommodated.
- *
- *  2. The bus width must defined in clps_setup_flash.
- *
- * The MTD layer will detect flash chip aliasing and reduce the size of
- * the map accordingly.
- *
- */
-
-#ifdef CONFIG_ARCH_CEIVA
-/* Flash / Partition sizing */
-/* For the 28F8003, we use the block mapping to calcuate the sizes */
-#define MAX_SIZE_KiB                  (16 + 8 + 8 + 96 + (7*128))
-#define BOOT_PARTITION_SIZE_KiB       (16)
-#define PARAMS_PARTITION_SIZE_KiB     (8)
-#define KERNEL_PARTITION_SIZE_KiB     (4*128)
-/* Use both remaining portion of first flash, and all of second flash */
-#define ROOT_PARTITION_SIZE_KiB       (3*128) + (8*128)
-
-static struct mtd_partition ceiva_partitions[] = {
-        {
-                .name = "Ceiva BOOT partition",
-                .size   = BOOT_PARTITION_SIZE_KiB*1024,
-                .offset = 0,
-
-        },{
-                .name = "Ceiva parameters partition",
-                .size   = PARAMS_PARTITION_SIZE_KiB*1024,
-                .offset = (16 + 8) * 1024,
-        },{
-                .name = "Ceiva kernel partition",
-                .size = (KERNEL_PARTITION_SIZE_KiB)*1024,
-                .offset = 0x20000,
-
-        },{
-                .name = "Ceiva root filesystem partition",
-                .offset = MTDPART_OFS_APPEND,
-                .size = (ROOT_PARTITION_SIZE_KiB)*1024,
-        }
-};
-#endif
-
-static int __init clps_static_partitions(struct mtd_partition **parts)
-{
-        int nb_parts = 0;
-
-#ifdef CONFIG_ARCH_CEIVA
-        if (machine_is_ceiva()) {
-                *parts       = ceiva_partitions;
-                nb_parts     = ARRAY_SIZE(ceiva_partitions);
-        }
-#endif
-        return nb_parts;
-}
-#endif
-
-struct clps_info {
-        unsigned long base;
-        unsigned long size;
-        int width;
-        void *vbase;
-        struct map_info *map;
-        struct mtd_info *mtd;
-        struct resource *res;
-};
-
-#define NR_SUBMTD 4
-
-static struct clps_info info[NR_SUBMTD];
-
-static int __init clps_setup_mtd(struct clps_info *clps, int nr, struct mtd_info **rmtd)
-{
-        struct mtd_info *subdev[nr];
-        struct map_info *maps;
-        int i, found = 0, ret = 0;
-
-        /*
-         * Allocate the map_info structs in one go.
-         */
-        maps = kzalloc(sizeof(struct map_info) * nr, GFP_KERNEL);
-        if (!maps)
-                return -ENOMEM;
-        /*
-         * Claim and then map the memory regions.
-         */
-        for (i = 0; i < nr; i++) {
-                if (clps[i].base == (unsigned long)-1)
-                        break;
-
-                clps[i].res = request_mem_region(clps[i].base, clps[i].size, "clps flash");
-                if (!clps[i].res) {
-                        ret = -EBUSY;
-                        break;
-                }
-
-                clps[i].map = maps + i;
-
-                clps[i].map->name = "clps flash";
-                clps[i].map->phys = clps[i].base;
-
-                clps[i].vbase = ioremap(clps[i].base, clps[i].size);
-                if (!clps[i].vbase) {
-                        ret = -ENOMEM;
-                        break;
-                }
-
-                clps[i].map->virt = (void __iomem *)clps[i].vbase;
-                clps[i].map->bankwidth = clps[i].width;
-                clps[i].map->size = clps[i].size;
-
-                simple_map_init(&clps[i].map);
-
-                clps[i].mtd = do_map_probe("jedec_probe", clps[i].map);
-                if (clps[i].mtd == NULL) {
-                        ret = -ENXIO;
-                        break;
-                }
-                clps[i].mtd->owner = THIS_MODULE;
-                subdev[i] = clps[i].mtd;
-
-                printk(KERN_INFO "clps flash: JEDEC device at 0x%08lx, %dMiB, "
-                        "%d-bit\n", clps[i].base, clps[i].mtd->size >> 20,
-                        clps[i].width * 8);
-                found += 1;
-        }
-
-        /*
-         * ENXIO is special.  It means we didn't find a chip when
-         * we probed.  We need to tear down the mapping, free the
-         * resource and mark it as such.
-         */
-        if (ret == -ENXIO) {
-                iounmap(clps[i].vbase);
-                clps[i].vbase = NULL;
-                release_resource(clps[i].res);
-                clps[i].res = NULL;
-        }
-
-        /*
-         * If we found one device, don't bother with concat support.
-         * If we found multiple devices, use concat if we have it
-         * available, otherwise fail.
-         */
-        if (ret == 0 || ret == -ENXIO) {
-                if (found == 1) {
-                        *rmtd = subdev[0];
-                        ret = 0;
-                } else if (found > 1) {
-                        /*
-                         * We detected multiple devices.  Concatenate
-                         * them together.
-                         */
-                        *rmtd = mtd_concat_create(subdev, found,
-                                                  "clps flash");
-                        if (*rmtd == NULL)
-                                ret = -ENXIO;
-                }
-        }
-
-        /*
-         * If we failed, clean up.
-         */
-        if (ret) {
-                do {
-                        if (clps[i].mtd)
-                                map_destroy(clps[i].mtd);
-                        if (clps[i].vbase)
-                                iounmap(clps[i].vbase);
-                        if (clps[i].res)
-                                release_resource(clps[i].res);
-                } while (i--);
-
-                kfree(maps);
-        }
-
-        return ret;
-}
-
-static void __exit clps_destroy_mtd(struct clps_info *clps, struct mtd_info *mtd)
-{
-        int i;
-
-        mtd_device_unregister(mtd);
-
-        if (mtd != clps[0].mtd)
-                mtd_concat_destroy(mtd);
-
-        for (i = NR_SUBMTD; i >= 0; i--) {
-                if (clps[i].mtd)
-                        map_destroy(clps[i].mtd);
-                if (clps[i].vbase)
-                        iounmap(clps[i].vbase);
-                if (clps[i].res)
-                        release_resource(clps[i].res);
-        }
-        kfree(clps[0].map);
-}
-
-/*
- * We define the memory space, size, and width for the flash memory
- * space here.
- */
-
-static int __init clps_setup_flash(void)
-{
-        int nr = 0;
-
-#ifdef CONFIG_ARCH_CEIVA
-        if (machine_is_ceiva()) {
-                info[0].base = CS0_PHYS_BASE;
-                info[0].size = SZ_32M;
-                info[0].width = CEIVA_FLASH_WIDTH;
-                info[1].base = CS1_PHYS_BASE;
-                info[1].size = SZ_32M;
-                info[1].width = CEIVA_FLASH_WIDTH;
-                nr = 2;
-        }
-#endif
-        return nr;
-}
-
-static struct mtd_partition *parsed_parts;
-static const char *probes[] = { "cmdlinepart", "RedBoot", NULL };
-
-static void __init clps_locate_partitions(struct mtd_info *mtd)
-{
-        const char *part_type = NULL;
-        int nr_parts = 0;
-        do {
-                /*
-                 * Partition selection stuff.
-                 */
-                nr_parts = parse_mtd_partitions(mtd, probes, &parsed_parts, 0);
-                if (nr_parts > 0) {
-                        part_type = "command line";
-                        break;
-                }
-#ifdef CONFIG_MTD_CEIVA_STATICMAP
-                nr_parts = clps_static_partitions(&parsed_parts);
-                if (nr_parts > 0) {
-                        part_type = "static";
-                        break;
-                }
-                printk("found: %d partitions\n", nr_parts);
-#endif
-        } while (0);
-
-        if (nr_parts == 0) {
-                printk(KERN_NOTICE "clps flash: no partition info "
-                        "available, registering whole flash\n");
-                mtd_device_register(mtd, NULL, 0);
-        } else {
-                printk(KERN_NOTICE "clps flash: using %s partition "
-                        "definition\n", part_type);
-                mtd_device_register(mtd, parsed_parts, nr_parts);
-        }
-
-        /* Always succeeds. */
-}
-
-static void __exit clps_destroy_partitions(void)
-{
-        kfree(parsed_parts);
-}
-
-static struct mtd_info *mymtd;
-
-static int __init clps_mtd_init(void)
-{
-        int ret;
-        int nr;
-
-        nr = clps_setup_flash();
-        if (nr < 0)
-                return nr;
-
-        ret = clps_setup_mtd(info, nr, &mymtd);
-        if (ret)
-                return ret;
-
-        clps_locate_partitions(mymtd);
-
-        return 0;
-}
-
-static void __exit clps_mtd_cleanup(void)
-{
-        clps_destroy_mtd(info, mymtd);
-        clps_destroy_partitions();
-}
-
-module_init(clps_mtd_init);
-module_exit(clps_mtd_cleanup);
-
-MODULE_AUTHOR("Rob Scott");
-MODULE_DESCRIPTION("Cirrus Logic JEDEC map driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/maps/dc21285.c b/drivers/mtd/maps/dc21285.c
index 7a9e1989c977..f43b365b848c 100644
--- a/drivers/mtd/maps/dc21285.c
+++ b/drivers/mtd/maps/dc21285.c
@@ -145,14 +145,10 @@ static struct map_info dc21285_map = {
 
 
 /* Partition stuff */
-static struct mtd_partition *dc21285_parts;
 static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
 
 static int __init init_dc21285(void)
 {
-
-        int nrparts;
-
         /* Determine bankwidth */
         switch (*CSR_SA110_CNTL & (3<<14)) {
                 case SA110_CNTL_ROMWIDTH_8:
@@ -200,8 +196,7 @@ static int __init init_dc21285(void)
 
         dc21285_mtd->owner = THIS_MODULE;
 
-        nrparts = parse_mtd_partitions(dc21285_mtd, probes, &dc21285_parts, 0);
-        mtd_device_register(dc21285_mtd, dc21285_parts, nrparts);
+        mtd_device_parse_register(dc21285_mtd, probes, 0, NULL, 0);
 
         if(machine_is_ebsa285()) {
                 /*
@@ -224,8 +219,6 @@ static int __init init_dc21285(void)
 static void __exit cleanup_dc21285(void)
 {
         mtd_device_unregister(dc21285_mtd);
-        if (dc21285_parts)
-                kfree(dc21285_parts);
         map_destroy(dc21285_mtd);
         iounmap(dc21285_map.virt);
 }
diff --git a/drivers/mtd/maps/edb7312.c b/drivers/mtd/maps/edb7312.c
deleted file mode 100644
index fe42a212bb3e..000000000000
--- a/drivers/mtd/maps/edb7312.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Handle mapping of the NOR flash on Cogent EDB7312 boards
- *
- * Copyright 2002 SYSGO Real-Time Solutions GmbH
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#define WINDOW_ADDR 0x00000000      /* physical properties of flash */
-#define WINDOW_SIZE 0x01000000
-#define BUSWIDTH    2
-#define FLASH_BLOCKSIZE_MAIN    0x20000
-#define FLASH_NUMBLOCKS_MAIN    128
-/* can be "cfi_probe", "jedec_probe", "map_rom", NULL }; */
-#define PROBETYPES { "cfi_probe", NULL }
-
-#define MSG_PREFIX "EDB7312-NOR:"   /* prefix for our printk()'s */
-#define MTDID      "edb7312-nor"    /* for mtdparts= partitioning */
-
-static struct mtd_info *mymtd;
-
-struct map_info edb7312nor_map = {
-        .name = "NOR flash on EDB7312",
-        .size = WINDOW_SIZE,
-        .bankwidth = BUSWIDTH,
-        .phys = WINDOW_ADDR,
-};
-
-/*
- * MTD partitioning stuff
- */
-static struct mtd_partition static_partitions[3] =
-{
-        {
-                .name = "ARMboot",
-                .size = 0x40000,
-                .offset = 0
-        },
-        {
-                .name = "Kernel",
-                .size = 0x200000,
-                .offset = 0x40000
-        },
-        {
-                .name = "RootFS",
-                .size = 0xDC0000,
-                .offset = 0x240000
-        },
-};
-
-static const char *probes[] = { "RedBoot", "cmdlinepart", NULL };
-
-static int                   mtd_parts_nb = 0;
-static struct mtd_partition *mtd_parts    = 0;
-
-static int __init init_edb7312nor(void)
-{
-        static const char *rom_probe_types[] = PROBETYPES;
-        const char **type;
-        const char *part_type = 0;
-
-        printk(KERN_NOTICE MSG_PREFIX "0x%08x at 0x%08x\n",
-               WINDOW_SIZE, WINDOW_ADDR);
-        edb7312nor_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-
-        if (!edb7312nor_map.virt) {
-                printk(MSG_PREFIX "failed to ioremap\n");
-                return -EIO;
-        }
-
-        simple_map_init(&edb7312nor_map);
-
-        mymtd = 0;
-        type = rom_probe_types;
-        for(; !mymtd && *type; type++) {
-                mymtd = do_map_probe(*type, &edb7312nor_map);
-        }
-        if (mymtd) {
-                mymtd->owner = THIS_MODULE;
-
-                mtd_parts_nb = parse_mtd_partitions(mymtd, probes, &mtd_parts, MTDID);
-                if (mtd_parts_nb > 0)
-                        part_type = "detected";
-
-                if (mtd_parts_nb == 0) {
-                        mtd_parts = static_partitions;
-                        mtd_parts_nb = ARRAY_SIZE(static_partitions);
-                        part_type = "static";
-                }
-
-                if (mtd_parts_nb == 0)
-                        printk(KERN_NOTICE MSG_PREFIX "no partition info available\n");
-                else
-                        printk(KERN_NOTICE MSG_PREFIX
-                               "using %s partition definition\n", part_type);
-                /* Register the whole device first. */
-                mtd_device_register(mymtd, NULL, 0);
-                mtd_device_register(mymtd, mtd_parts, mtd_parts_nb);
-                return 0;
-        }
-
-        iounmap((void *)edb7312nor_map.virt);
-        return -ENXIO;
-}
-
-static void __exit cleanup_edb7312nor(void)
-{
-        if (mymtd) {
-                mtd_device_unregister(mymtd);
-                map_destroy(mymtd);
-        }
-        if (edb7312nor_map.virt) {
-                iounmap((void *)edb7312nor_map.virt);
-                edb7312nor_map.virt = 0;
-        }
-}
-
-module_init(init_edb7312nor);
-module_exit(cleanup_edb7312nor);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Marius Groeger <mag@sysgo.de>");
-MODULE_DESCRIPTION("Generic configurable MTD map driver");
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c
index 7568c5f8b8ae..1ec66f031c51 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -187,7 +187,6 @@ static const char *part_probe_types[] = { "cmdlinepart", "RedBoot", NULL };
  */
 static int __devinit gpio_flash_probe(struct platform_device *pdev)
 {
-        int nr_parts;
         size_t i, arr_size;
         struct physmap_flash_data *pdata;
         struct resource *memory;
@@ -252,20 +251,9 @@ static int __devinit gpio_flash_probe(struct platform_device *pdev)
                 return -ENXIO;
         }
 
-        nr_parts = parse_mtd_partitions(state->mtd, part_probe_types,
-                                        &pdata->parts, 0);
-        if (nr_parts > 0) {
-                pr_devinit(KERN_NOTICE PFX "Using commandline partition definition\n");
-                kfree(pdata->parts);
-        } else if (pdata->nr_parts) {
-                pr_devinit(KERN_NOTICE PFX "Using board partition definition\n");
-                nr_parts = pdata->nr_parts;
-        } else {
-                pr_devinit(KERN_NOTICE PFX "no partition info available, registering whole flash at once\n");
-                nr_parts = 0;
-        }
 
-        mtd_device_register(state->mtd, pdata->parts, nr_parts);
+        mtd_device_parse_register(state->mtd, part_probe_types, 0,
+                        pdata->parts, pdata->nr_parts);
 
         return 0;
 }
diff --git a/drivers/mtd/maps/h720x-flash.c b/drivers/mtd/maps/h720x-flash.c
index 7f035860a36b..49c14187fc66 100644
--- a/drivers/mtd/maps/h720x-flash.c
+++ b/drivers/mtd/maps/h720x-flash.c
@@ -58,18 +58,11 @@ static struct mtd_partition h720x_partitions[] = {
 
 #define NUM_PARTITIONS ARRAY_SIZE(h720x_partitions)
 
-static int                   nr_mtd_parts;
-static struct mtd_partition *mtd_parts;
-static const char *probes[] = { "cmdlinepart", NULL };
-
 /*
  * Initialize FLASH support
  */
 static int __init h720x_mtd_init(void)
 {
-
-        char    *part_type = NULL;
-
         h720x_map.virt = ioremap(h720x_map.phys, h720x_map.size);
 
         if (!h720x_map.virt) {
@@ -92,16 +85,8 @@ static int __init h720x_mtd_init(void)
         if (mymtd) {
                 mymtd->owner = THIS_MODULE;
 
-                nr_mtd_parts = parse_mtd_partitions(mymtd, probes, &mtd_parts, 0);
-                if (nr_mtd_parts > 0)
-                        part_type = "command line";
-                if (nr_mtd_parts <= 0) {
-                        mtd_parts = h720x_partitions;
-                        nr_mtd_parts = NUM_PARTITIONS;
-                        part_type = "builtin";
-                }
-                printk(KERN_INFO "Using %s partition table\n", part_type);
-                mtd_device_register(mymtd, mtd_parts, nr_mtd_parts);
+                mtd_device_parse_register(mymtd, NULL, 0,
+                                h720x_partitions, NUM_PARTITIONS);
                 return 0;
         }
 
@@ -120,10 +105,6 @@ static void __exit h720x_mtd_cleanup(void)
                 map_destroy(mymtd);
         }
 
-        /* Free partition info, if commandline partition was used */
-        if (mtd_parts && (mtd_parts != h720x_partitions))
-                kfree (mtd_parts);
-
         if (h720x_map.virt) {
                 iounmap((void *)h720x_map.virt);
                 h720x_map.virt = 0;
diff --git a/drivers/mtd/maps/impa7.c b/drivers/mtd/maps/impa7.c
index 404a50cbafa0..f47aedb24366 100644
--- a/drivers/mtd/maps/impa7.c
+++ b/drivers/mtd/maps/impa7.c
@@ -49,7 +49,7 @@ static struct map_info impa7_map[NUM_FLASHBANKS] = {
 /*
  * MTD partitioning stuff
  */
-static struct mtd_partition static_partitions[] =
+static struct mtd_partition partitions[] =
 {
         {
                 .name = "FileSystem",
@@ -58,16 +58,10 @@ static struct mtd_partition static_partitions[] =
         },
 };
 
-static int mtd_parts_nb[NUM_FLASHBANKS];
-static struct mtd_partition *mtd_parts[NUM_FLASHBANKS];
-
-static const char *probes[] = { "cmdlinepart", NULL };
-
 static int __init init_impa7(void)
 {
         static const char *rom_probe_types[] = PROBETYPES;
         const char **type;
-        const char *part_type = 0;
         int i;
         static struct { u_long addr; u_long size; } pt[NUM_FLASHBANKS] = {
           { WINDOW_ADDR0, WINDOW_SIZE0 },
@@ -97,23 +91,9 @@ static int __init init_impa7(void)
                 if (impa7_mtd[i]) {
                         impa7_mtd[i]->owner = THIS_MODULE;
                         devicesfound++;
-                        mtd_parts_nb[i] = parse_mtd_partitions(impa7_mtd[i],
-                                                               probes,
-                                                               &mtd_parts[i],
-                                                               0);
-                        if (mtd_parts_nb[i] > 0) {
-                                part_type = "command line";
-                        } else {
-                                mtd_parts[i] = static_partitions;
-                                mtd_parts_nb[i] = ARRAY_SIZE(static_partitions);
-                                part_type = "static";
-                        }
-
-                        printk(KERN_NOTICE MSG_PREFIX
-                               "using %s partition definition\n",
-                               part_type);
-                        mtd_device_register(impa7_mtd[i],
-                                            mtd_parts[i], mtd_parts_nb[i]);
+                        mtd_device_parse_register(impa7_mtd[i], NULL, 0,
+                                                  partitions,
+                                                  ARRAY_SIZE(partitions));
                 }
                 else
                         iounmap((void *)impa7_map[i].virt);
diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c
index d2f47be8754b..08c239604ee4 100644
--- a/drivers/mtd/maps/intel_vr_nor.c
+++ b/drivers/mtd/maps/intel_vr_nor.c
@@ -44,7 +44,6 @@ struct vr_nor_mtd {
         void __iomem *csr_base;
         struct map_info map;
         struct mtd_info *info;
-        int nr_parts;
         struct pci_dev *dev;
 };
 
@@ -71,13 +70,9 @@ static void __devexit vr_nor_destroy_partitions(struct vr_nor_mtd *p)
 
 static int __devinit vr_nor_init_partitions(struct vr_nor_mtd *p)
 {
-        struct mtd_partition *parts;
-        static const char *part_probes[] = { "cmdlinepart", NULL };
-
         /* register the flash bank */
         /* partition the flash bank */
-        p->nr_parts = parse_mtd_partitions(p->info, part_probes, &parts, 0);
-        return mtd_device_register(p->info, parts, p->nr_parts);
+        return mtd_device_parse_register(p->info, NULL, 0, NULL, 0);
 }
 
 static void __devexit vr_nor_destroy_mtd_setup(struct vr_nor_mtd *p)
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index 1594a802631d..437fcd2f352f 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -38,7 +38,6 @@
 struct ixp2000_flash_info {
         struct          mtd_info *mtd;
         struct          map_info map;
-        struct          mtd_partition *partitions;
         struct          resource *res;
 };
 
@@ -125,8 +124,6 @@ static int ixp2000_flash_remove(struct platform_device *dev)
         if (info->map.map_priv_1)
                 iounmap((void *) info->map.map_priv_1);
 
-        kfree(info->partitions);
-
         if (info->res) {
                 release_resource(info->res);
                 kfree(info->res);
@@ -229,13 +226,7 @@ static int ixp2000_flash_probe(struct platform_device *dev)
         }
         info->mtd->owner = THIS_MODULE;
 
-        err = parse_mtd_partitions(info->mtd, probes, &info->partitions, 0);
-        if (err > 0) {
-                err = mtd_device_register(info->mtd, info->partitions, err);
-                if(err)
-                        dev_err(&dev->dev, "Could not parse partitions\n");
-        }
-
+        err = mtd_device_parse_register(info->mtd, probes, 0, NULL, 0);
         if (err)
                 goto Error;
 
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 155b21942f47..30409015a3de 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -145,7 +145,6 @@ static void ixp4xx_write16(struct map_info *map, map_word d, unsigned long adr)
 struct ixp4xx_flash_info {
         struct mtd_info *mtd;
         struct map_info map;
-        struct mtd_partition *partitions;
         struct resource *res;
 };
 
@@ -168,8 +167,6 @@ static int ixp4xx_flash_remove(struct platform_device *dev)
         if (info->map.virt)
                 iounmap(info->map.virt);
 
-        kfree(info->partitions);
-
         if (info->res) {
                 release_resource(info->res);
                 kfree(info->res);
@@ -185,8 +182,6 @@ static int ixp4xx_flash_probe(struct platform_device *dev)
 {
         struct flash_platform_data *plat = dev->dev.platform_data;
         struct ixp4xx_flash_info *info;
-        const char *part_type = NULL;
-        int nr_parts = 0;
         int err = -1;
 
         if (!plat)
@@ -252,28 +247,12 @@ static int ixp4xx_flash_probe(struct platform_device *dev)
         /* Use the fast version */
         info->map.write = ixp4xx_write16;
 
-        nr_parts = parse_mtd_partitions(info->mtd, probes, &info->partitions,
-                                        dev->resource->start);
-        if (nr_parts > 0) {
-                part_type = "dynamic";
-        } else {
-                info->partitions = plat->parts;
-                nr_parts = plat->nr_parts;
-                part_type = "static";
-        }
-        if (nr_parts == 0)
-                printk(KERN_NOTICE "IXP4xx flash: no partition info "
-                        "available, registering whole flash\n");
-        else
-                printk(KERN_NOTICE "IXP4xx flash: using %s partition "
-                        "definition\n", part_type);
-
-        err = mtd_device_register(info->mtd, info->partitions, nr_parts);
-        if (err)
+        err = mtd_device_parse_register(info->mtd, probes, dev->resource->start,
+                        plat->parts, plat->nr_parts);
+        if (err) {
                 printk(KERN_ERR "Could not parse partitions\n");
-
-        if (err)
                 goto Error;
+        }
 
         return 0;
 
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 7e508969239e..4f10e27ada55 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -107,16 +107,12 @@ ltq_copy_to(struct map_info *map, unsigned long to,
         spin_unlock_irqrestore(&ebu_lock, flags);
 }
 
-static const char const *part_probe_types[] = { "cmdlinepart", NULL };
-
 static int __init
 ltq_mtd_probe(struct platform_device *pdev)
 {
         struct physmap_flash_data *ltq_mtd_data = dev_get_platdata(&pdev->dev);
         struct ltq_mtd *ltq_mtd;
-        struct mtd_partition *parts;
         struct resource *res;
-        int nr_parts = 0;
         struct cfi_private *cfi;
         int err;
 
@@ -172,17 +168,8 @@ ltq_mtd_probe(struct platform_device *pdev)
         cfi->addr_unlock1 ^= 1;
         cfi->addr_unlock2 ^= 1;
 
-        nr_parts = parse_mtd_partitions(ltq_mtd->mtd,
-                                part_probe_types, &parts, 0);
-        if (nr_parts > 0) {
-                dev_info(&pdev->dev,
-                        "using %d partitions from cmdline", nr_parts);
-        } else {
-                nr_parts = ltq_mtd_data->nr_parts;
-                parts = ltq_mtd_data->parts;
-        }
-
-        err = mtd_device_register(ltq_mtd->mtd, parts, nr_parts);
+        err = mtd_device_parse_register(ltq_mtd->mtd, NULL, 0,
+                        ltq_mtd_data->parts, ltq_mtd_data->nr_parts);
         if (err) {
                 dev_err(&pdev->dev, "failed to add partitions\n");
                 goto err_destroy;
diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c
index 5936c466e901..119baa7d7477 100644
--- a/drivers/mtd/maps/latch-addr-flash.c
+++ b/drivers/mtd/maps/latch-addr-flash.c
@@ -33,9 +33,6 @@ struct latch_addr_flash_info {
         /* cache; could be found out of res */
         unsigned long           win_mask;
 
-        int                     nr_parts;
-        struct mtd_partition    *parts;
-
         spinlock_t              lock;
 };
 
@@ -97,8 +94,6 @@ static void lf_copy_from(struct map_info *map, void *to,
 
 static char *rom_probe_types[] = { "cfi_probe", NULL };
 
-static char *part_probe_types[] = { "cmdlinepart", NULL };
-
 static int latch_addr_flash_remove(struct platform_device *dev)
 {
         struct latch_addr_flash_info *info;
@@ -112,8 +107,6 @@ static int latch_addr_flash_remove(struct platform_device *dev)
         latch_addr_data = dev->dev.platform_data;
 
         if (info->mtd != NULL) {
-                if (info->nr_parts)
-                        kfree(info->parts);
                 mtd_device_unregister(info->mtd);
                 map_destroy(info->mtd);
         }
@@ -206,21 +199,8 @@ static int __devinit latch_addr_flash_probe(struct platform_device *dev)
         }
         info->mtd->owner = THIS_MODULE;
 
-        err = parse_mtd_partitions(info->mtd, (const char **)part_probe_types,
-                                   &info->parts, 0);
-        if (err > 0) {
-                mtd_device_register(info->mtd, info->parts, err);
-                return 0;
-        }
-        if (latch_addr_data->nr_parts) {
-                pr_notice("Using latch-addr-flash partition information\n");
-                mtd_device_register(info->mtd,
-                                    latch_addr_data->parts,
-                                    latch_addr_data->nr_parts);
-                return 0;
-        }
-
-        mtd_device_register(info->mtd, NULL, 0);
+        mtd_device_parse_register(info->mtd, NULL, 0,
+                        latch_addr_data->parts, latch_addr_data->nr_parts);
         return 0;
 
 iounmap:
diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c
index bbe168b65c26..e8e9fec23553 100644
--- a/drivers/mtd/maps/pcmciamtd.c
+++ b/drivers/mtd/maps/pcmciamtd.c
@@ -22,22 +22,6 @@
 #include <linux/mtd/map.h>
 #include <linux/mtd/mtd.h>
 
-#ifdef CONFIG_MTD_DEBUG
-static int debug = CONFIG_MTD_DEBUG_VERBOSE;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Set Debug Level 0=quiet, 5=noisy");
-#undef DEBUG
-#define DEBUG(n, format, arg...) \
-        if (n <= debug) {        \
-                printk(KERN_DEBUG __FILE__ ":%s(): " format "\n", __func__ , ## arg); \
-        }
-
-#else
-#undef DEBUG
-#define DEBUG(n, arg...)
-static const int debug = 0;
-#endif
-
 #define info(format, arg...) printk(KERN_INFO "pcmciamtd: " format "\n" , ## arg)
 
 #define DRIVER_DESC     "PCMCIA Flash memory card driver"
@@ -105,13 +89,13 @@ static caddr_t remap_window(struct map_info *map, unsigned long to)
         int ret;
 
         if (!pcmcia_dev_present(dev->p_dev)) {
-                DEBUG(1, "device removed");
+                pr_debug("device removed\n");
                 return 0;
         }
 
         offset = to & ~(dev->win_size-1);
         if (offset != dev->offset) {
-                DEBUG(2, "Remapping window from 0x%8.8x to 0x%8.8x",
+                pr_debug("Remapping window from 0x%8.8x to 0x%8.8x\n",
                       dev->offset, offset);
                 ret = pcmcia_map_mem_page(dev->p_dev, win, offset);
                 if (ret != 0)
@@ -132,7 +116,7 @@ static map_word pcmcia_read8_remap(struct map_info *map, unsigned long ofs)
                 return d;
 
         d.x[0] = readb(addr);
-        DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx", ofs, addr, d.x[0]);
+        pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n", ofs, addr, d.x[0]);
         return d;
 }
 
@@ -147,7 +131,7 @@ static map_word pcmcia_read16_remap(struct map_info *map, unsigned long ofs)
                 return d;
 
         d.x[0] = readw(addr);
-        DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx", ofs, addr, d.x[0]);
+        pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n", ofs, addr, d.x[0]);
         return d;
 }
 
@@ -157,7 +141,7 @@ static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long
         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
         unsigned long win_size = dev->win_size;
 
-        DEBUG(3, "to = %p from = %lu len = %zd", to, from, len);
+        pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
         while(len) {
                 int toread = win_size - (from & (win_size-1));
                 caddr_t addr;
@@ -169,7 +153,7 @@ static void pcmcia_copy_from_remap(struct map_info *map, void *to, unsigned long
                 if(!addr)
                         return;
 
-                DEBUG(4, "memcpy from %p to %p len = %d", addr, to, toread);
+                pr_debug("memcpy from %p to %p len = %d\n", addr, to, toread);
                 memcpy_fromio(to, addr, toread);
                 len -= toread;
                 to += toread;
@@ -185,7 +169,7 @@ static void pcmcia_write8_remap(struct map_info *map, map_word d, unsigned long
         if(!addr)
                 return;
 
-        DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02lx", adr, addr, d.x[0]);
+        pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n", adr, addr, d.x[0]);
         writeb(d.x[0], addr);
 }
 
@@ -196,7 +180,7 @@ static void pcmcia_write16_remap(struct map_info *map, map_word d, unsigned long
         if(!addr)
                 return;
 
-        DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04lx", adr, addr, d.x[0]);
+        pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n", adr, addr, d.x[0]);
         writew(d.x[0], addr);
 }
 
@@ -206,7 +190,7 @@ static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const v
         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
         unsigned long win_size = dev->win_size;
 
-        DEBUG(3, "to = %lu from = %p len = %zd", to, from, len);
+        pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
         while(len) {
                 int towrite = win_size - (to & (win_size-1));
                 caddr_t addr;
@@ -218,7 +202,7 @@ static void pcmcia_copy_to_remap(struct map_info *map, unsigned long to, const v
                 if(!addr)
                         return;
 
-                DEBUG(4, "memcpy from %p to %p len = %d", from, addr, towrite);
+                pr_debug("memcpy from %p to %p len = %d\n", from, addr, towrite);
                 memcpy_toio(addr, from, towrite);
                 len -= towrite;
                 to += towrite;
@@ -240,7 +224,7 @@ static map_word pcmcia_read8(struct map_info *map, unsigned long ofs)
                 return d;
 
         d.x[0] = readb(win_base + ofs);
-        DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%02lx",
+        pr_debug("ofs = 0x%08lx (%p) data = 0x%02lx\n",
               ofs, win_base + ofs, d.x[0]);
         return d;
 }
@@ -255,7 +239,7 @@ static map_word pcmcia_read16(struct map_info *map, unsigned long ofs)
                 return d;
 
         d.x[0] = readw(win_base + ofs);
-        DEBUG(3, "ofs = 0x%08lx (%p) data = 0x%04lx",
+        pr_debug("ofs = 0x%08lx (%p) data = 0x%04lx\n",
               ofs, win_base + ofs, d.x[0]);
         return d;
 }
@@ -268,7 +252,7 @@ static void pcmcia_copy_from(struct map_info *map, void *to, unsigned long from,
         if(DEV_REMOVED(map))
                 return;
 
-        DEBUG(3, "to = %p from = %lu len = %zd", to, from, len);
+        pr_debug("to = %p from = %lu len = %zd\n", to, from, len);
         memcpy_fromio(to, win_base + from, len);
 }
 
@@ -280,7 +264,7 @@ static void pcmcia_write8(struct map_info *map, map_word d, unsigned long adr)
         if(DEV_REMOVED(map))
                 return;
 
-        DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%02lx",
+        pr_debug("adr = 0x%08lx (%p)  data = 0x%02lx\n",
               adr, win_base + adr, d.x[0]);
         writeb(d.x[0], win_base + adr);
 }
@@ -293,7 +277,7 @@ static void pcmcia_write16(struct map_info *map, map_word d, unsigned long adr)
         if(DEV_REMOVED(map))
                 return;
 
-        DEBUG(3, "adr = 0x%08lx (%p)  data = 0x%04lx",
+        pr_debug("adr = 0x%08lx (%p)  data = 0x%04lx\n",
               adr, win_base + adr, d.x[0]);
         writew(d.x[0], win_base + adr);
 }
@@ -306,7 +290,7 @@ static void pcmcia_copy_to(struct map_info *map, unsigned long to, const void *f
         if(DEV_REMOVED(map))
                 return;
 
-        DEBUG(3, "to = %lu from = %p len = %zd", to, from, len);
+        pr_debug("to = %lu from = %p len = %zd\n", to, from, len);
         memcpy_toio(win_base + to, from, len);
 }
 
@@ -316,7 +300,7 @@ static void pcmciamtd_set_vpp(struct map_info *map, int on)
         struct pcmciamtd_dev *dev = (struct pcmciamtd_dev *)map->map_priv_1;
         struct pcmcia_device *link = dev->p_dev;
 
-        DEBUG(2, "dev = %p on = %d vpp = %d\n", dev, on, dev->vpp);
+        pr_debug("dev = %p on = %d vpp = %d\n\n", dev, on, dev->vpp);
         pcmcia_fixup_vpp(link, on ? dev->vpp : 0);
 }
 
@@ -325,7 +309,7 @@ static void pcmciamtd_release(struct pcmcia_device *link)
 {
         struct pcmciamtd_dev *dev = link->priv;
 
-        DEBUG(3, "link = 0x%p", link);
+        pr_debug("link = 0x%p\n", link);
 
         if (link->resource[2]->end) {
                 if(dev->win_base) {
@@ -337,7 +321,6 @@ static void pcmciamtd_release(struct pcmcia_device *link)
 }
 
 
-#ifdef CONFIG_MTD_DEBUG
 static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev,
                                 tuple_t *tuple,
                                 void *priv_data)
@@ -347,7 +330,7 @@ static int pcmciamtd_cistpl_format(struct pcmcia_device *p_dev,
         if (!pcmcia_parse_tuple(tuple, &parse)) {
                 cistpl_format_t *t = &parse.format;
                 (void)t; /* Shut up, gcc */
-                DEBUG(2, "Format type: %u, Error Detection: %u, offset = %u, length =%u",
+                pr_debug("Format type: %u, Error Detection: %u, offset = %u, length =%u\n",
                         t->type, t->edc, t->offset, t->length);
         }
         return -ENOSPC;
@@ -363,12 +346,11 @@ static int pcmciamtd_cistpl_jedec(struct pcmcia_device *p_dev,
         if (!pcmcia_parse_tuple(tuple, &parse)) {
                 cistpl_jedec_t *t = &parse.jedec;
                 for (i = 0; i < t->nid; i++)
-                        DEBUG(2, "JEDEC: 0x%02x 0x%02x",
+                        pr_debug("JEDEC: 0x%02x 0x%02x\n",
                               t->id[i].mfr, t->id[i].info);
         }
         return -ENOSPC;
 }
-#endif
 
 static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev,
                                 tuple_t *tuple,
@@ -382,14 +364,14 @@ static int pcmciamtd_cistpl_device(struct pcmcia_device *p_dev,
         if (pcmcia_parse_tuple(tuple, &parse))
                 return -EINVAL;
 
-        DEBUG(2, "Common memory:");
+        pr_debug("Common memory:\n");
         dev->pcmcia_map.size = t->dev[0].size;
         /* from here on: DEBUG only */
         for (i = 0; i < t->ndev; i++) {
-                DEBUG(2, "Region %d, type = %u", i, t->dev[i].type);
-                DEBUG(2, "Region %d, wp = %u", i, t->dev[i].wp);
-                DEBUG(2, "Region %d, speed = %u ns", i, t->dev[i].speed);
-                DEBUG(2, "Region %d, size = %u bytes", i, t->dev[i].size);
+                pr_debug("Region %d, type = %u\n", i, t->dev[i].type);
+                pr_debug("Region %d, wp = %u\n", i, t->dev[i].wp);
+                pr_debug("Region %d, speed = %u ns\n", i, t->dev[i].speed);
+                pr_debug("Region %d, size = %u bytes\n", i, t->dev[i].size);
         }
         return 0;
 }
@@ -409,12 +391,12 @@ static int pcmciamtd_cistpl_geo(struct pcmcia_device *p_dev,
         dev->pcmcia_map.bankwidth = t->geo[0].buswidth;
         /* from here on: DEBUG only */
         for (i = 0; i < t->ngeo; i++) {
-                DEBUG(2, "region: %d bankwidth = %u", i, t->geo[i].buswidth);
-                DEBUG(2, "region: %d erase_block = %u", i, t->geo[i].erase_block);
-                DEBUG(2, "region: %d read_block = %u", i, t->geo[i].read_block);
-                DEBUG(2, "region: %d write_block = %u", i, t->geo[i].write_block);
-                DEBUG(2, "region: %d partition = %u", i, t->geo[i].partition);
-                DEBUG(2, "region: %d interleave = %u", i, t->geo[i].interleave);
+                pr_debug("region: %d bankwidth = %u\n", i, t->geo[i].buswidth);
+                pr_debug("region: %d erase_block = %u\n", i, t->geo[i].erase_block);
+                pr_debug("region: %d read_block = %u\n", i, t->geo[i].read_block);
+                pr_debug("region: %d write_block = %u\n", i, t->geo[i].write_block);
+                pr_debug("region: %d partition = %u\n", i, t->geo[i].partition);
+                pr_debug("region: %d interleave = %u\n", i, t->geo[i].interleave);
         }
         return 0;
 }
@@ -432,13 +414,11 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev
                         if (p_dev->prod_id[i])
                                 strcat(dev->mtd_name, p_dev->prod_id[i]);
                 }
-                DEBUG(2, "Found name: %s", dev->mtd_name);
+                pr_debug("Found name: %s\n", dev->mtd_name);
         }
 
-#ifdef CONFIG_MTD_DEBUG
         pcmcia_loop_tuple(p_dev, CISTPL_FORMAT, pcmciamtd_cistpl_format, NULL);
         pcmcia_loop_tuple(p_dev, CISTPL_JEDEC_C, pcmciamtd_cistpl_jedec, NULL);
-#endif
         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE, pcmciamtd_cistpl_device, dev);
         pcmcia_loop_tuple(p_dev, CISTPL_DEVICE_GEO, pcmciamtd_cistpl_geo, dev);
 
@@ -450,12 +430,12 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev
 
         if(force_size) {
                 dev->pcmcia_map.size = force_size << 20;
-                DEBUG(2, "size forced to %dM", force_size);
+                pr_debug("size forced to %dM\n", force_size);
         }
 
         if(bankwidth) {
                 dev->pcmcia_map.bankwidth = bankwidth;
-                DEBUG(2, "bankwidth forced to %d", bankwidth);
+                pr_debug("bankwidth forced to %d\n", bankwidth);
         }
 
         dev->pcmcia_map.name = dev->mtd_name;
@@ -464,7 +444,7 @@ static void card_settings(struct pcmciamtd_dev *dev, struct pcmcia_device *p_dev
                 *new_name = 1;
         }
 
-        DEBUG(1, "Device: Size: %lu Width:%d Name: %s",
+        pr_debug("Device: Size: %lu Width:%d Name: %s\n",
               dev->pcmcia_map.size,
               dev->pcmcia_map.bankwidth << 3, dev->mtd_name);
 }
@@ -479,7 +459,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
         static char *probes[] = { "jedec_probe", "cfi_probe" };
         int new_name = 0;
 
-        DEBUG(3, "link=0x%p", link);
+        pr_debug("link=0x%p\n", link);
 
         card_settings(dev, link, &new_name);
 
@@ -512,11 +492,11 @@ static int pcmciamtd_config(struct pcmcia_device *link)
 
         do {
                 int ret;
-                DEBUG(2, "requesting window with size = %luKiB memspeed = %d",
+                pr_debug("requesting window with size = %luKiB memspeed = %d\n",
                         (unsigned long) resource_size(link->resource[2]) >> 10,
                         mem_speed);
                 ret = pcmcia_request_window(link, link->resource[2], mem_speed);
-                DEBUG(2, "ret = %d dev->win_size = %d", ret, dev->win_size);
+                pr_debug("ret = %d dev->win_size = %d\n", ret, dev->win_size);
                 if(ret) {
                         j++;
                         link->resource[2]->start = 0;
@@ -524,21 +504,21 @@ static int pcmciamtd_config(struct pcmcia_device *link)
                                         force_size << 20 : MAX_PCMCIA_ADDR;
                         link->resource[2]->end >>= j;
                 } else {
-                        DEBUG(2, "Got window of size %luKiB", (unsigned long)
+                        pr_debug("Got window of size %luKiB\n", (unsigned long)
                                 resource_size(link->resource[2]) >> 10);
                         dev->win_size = resource_size(link->resource[2]);
                         break;
                 }
         } while (link->resource[2]->end >= 0x1000);
 
-        DEBUG(2, "dev->win_size = %d", dev->win_size);
+        pr_debug("dev->win_size = %d\n", dev->win_size);
 
         if(!dev->win_size) {
                 dev_err(&dev->p_dev->dev, "Cannot allocate memory window\n");
                 pcmciamtd_release(link);
                 return -ENODEV;
         }
-        DEBUG(1, "Allocated a window of %dKiB", dev->win_size >> 10);
+        pr_debug("Allocated a window of %dKiB\n", dev->win_size >> 10);
 
         /* Get write protect status */
         dev->win_base = ioremap(link->resource[2]->start,
@@ -549,7 +529,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
                 pcmciamtd_release(link);
                 return -ENODEV;
         }
-        DEBUG(1, "mapped window dev = %p @ %pR, base = %p",
+        pr_debug("mapped window dev = %p @ %pR, base = %p\n",
               dev, link->resource[2], dev->win_base);
 
         dev->offset = 0;
@@ -564,7 +544,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
         }
 
         link->config_index = 0;
-        DEBUG(2, "Setting Configuration");
+        pr_debug("Setting Configuration\n");
         ret = pcmcia_enable_device(link);
         if (ret != 0) {
                 if (dev->win_base) {
@@ -580,17 +560,17 @@ static int pcmciamtd_config(struct pcmcia_device *link)
                 mtd = do_map_probe("map_rom", &dev->pcmcia_map);
         } else {
                 for(i = 0; i < ARRAY_SIZE(probes); i++) {
-                        DEBUG(1, "Trying %s", probes[i]);
+                        pr_debug("Trying %s\n", probes[i]);
                         mtd = do_map_probe(probes[i], &dev->pcmcia_map);
                         if(mtd)
                                 break;
 
-                        DEBUG(1, "FAILED: %s", probes[i]);
+                        pr_debug("FAILED: %s\n", probes[i]);
                 }
         }
 
         if(!mtd) {
-                DEBUG(1, "Can not find an MTD");
+                pr_debug("Can not find an MTD\n");
                 pcmciamtd_release(link);
                 return -ENODEV;
         }
@@ -617,7 +597,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
         /* If the memory found is fits completely into the mapped PCMCIA window,
            use the faster non-remapping read/write functions */
         if(mtd->size <= dev->win_size) {
-                DEBUG(1, "Using non remapping memory functions");
+                pr_debug("Using non remapping memory functions\n");
                 dev->pcmcia_map.map_priv_2 = (unsigned long)dev->win_base;
                 if (dev->pcmcia_map.bankwidth == 1) {
                         dev->pcmcia_map.read = pcmcia_read8;
@@ -645,7 +625,7 @@ static int pcmciamtd_config(struct pcmcia_device *link)
 
 static int pcmciamtd_suspend(struct pcmcia_device *dev)
 {
-        DEBUG(2, "EVENT_PM_RESUME");
+        pr_debug("EVENT_PM_RESUME\n");
 
         /* get_lock(link); */
 
@@ -654,7 +634,7 @@ static int pcmciamtd_suspend(struct pcmcia_device *dev)
 
 static int pcmciamtd_resume(struct pcmcia_device *dev)
 {
-        DEBUG(2, "EVENT_PM_SUSPEND");
+        pr_debug("EVENT_PM_SUSPEND\n");
 
         /* free_lock(link); */
 
@@ -666,7 +646,7 @@ static void pcmciamtd_detach(struct pcmcia_device *link)
 {
         struct pcmciamtd_dev *dev = link->priv;
 
-        DEBUG(3, "link=0x%p", link);
+        pr_debug("link=0x%p\n", link);
 
         if(dev->mtd_info) {
                 mtd_device_unregister(dev->mtd_info);
@@ -686,7 +666,7 @@ static int pcmciamtd_probe(struct pcmcia_device *link)
         /* Create new memory card device */
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
         if (!dev) return -ENOMEM;
-        DEBUG(1, "dev=0x%p", dev);
+        pr_debug("dev=0x%p\n", dev);
 
         dev->p_dev = link;
         link->priv = dev;
@@ -755,7 +735,7 @@ static int __init init_pcmciamtd(void)
 
 static void __exit exit_pcmciamtd(void)
 {
-        DEBUG(1, DRIVER_DESC " unloading");
+        pr_debug(DRIVER_DESC " unloading");
         pcmcia_unregister_driver(&pcmciamtd_driver);
 }
 
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index f64cee4a3bfb..66e8200079c2 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -27,8 +27,6 @@ struct physmap_flash_info {
         struct mtd_info         *mtd[MAX_RESOURCES];
         struct mtd_info         *cmtd;
         struct map_info         map[MAX_RESOURCES];
-        int                     nr_parts;
-        struct mtd_partition    *parts;
 };
 
 static int physmap_flash_remove(struct platform_device *dev)
@@ -46,8 +44,6 @@ static int physmap_flash_remove(struct platform_device *dev)
 
         if (info->cmtd) {
                 mtd_device_unregister(info->cmtd);
-                if (info->nr_parts)
-                        kfree(info->parts);
                 if (info->cmtd != info->mtd[0])
                         mtd_concat_destroy(info->cmtd);
         }
@@ -175,23 +171,8 @@ static int physmap_flash_probe(struct platform_device *dev)
         if (err)
                 goto err_out;
 
-        err = parse_mtd_partitions(info->cmtd, part_probe_types,
-                                   &info->parts, 0);
-        if (err > 0) {
-                mtd_device_register(info->cmtd, info->parts, err);
-                info->nr_parts = err;
-                return 0;
-        }
-
-        if (physmap_data->nr_parts) {
-                printk(KERN_NOTICE "Using physmap partition information\n");
-                mtd_device_register(info->cmtd, physmap_data->parts,
-                                    physmap_data->nr_parts);
-                return 0;
-        }
-
-        mtd_device_register(info->cmtd, NULL, 0);
-
+        mtd_device_parse_register(info->cmtd, part_probe_types, 0,
+                                  physmap_data->parts, physmap_data->nr_parts);
         return 0;
 
 err_out:
@@ -245,21 +226,6 @@ static struct platform_device physmap_flash = {
         .num_resources  = 1,
         .resource       = &physmap_flash_resource,
 };
-
-void physmap_configure(unsigned long addr, unsigned long size,
-                int bankwidth, void (*set_vpp)(struct map_info *, int))
-{
-        physmap_flash_resource.start = addr;
-        physmap_flash_resource.end = addr + size - 1;
-        physmap_flash_data.width = bankwidth;
-        physmap_flash_data.set_vpp = set_vpp;
-}
-
-void physmap_set_partitions(struct mtd_partition *parts, int num_parts)
-{
-        physmap_flash_data.nr_parts = num_parts;
-        physmap_flash_data.parts = parts;
-}
 #endif
 
 static int __init physmap_init(void)
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index d251d1db129b..7d65f9d3e690 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -34,58 +34,10 @@ struct of_flash_list {
 
 struct of_flash {
         struct mtd_info         *cmtd;
-        struct mtd_partition    *parts;
         int list_size; /* number of elements in of_flash_list */
         struct of_flash_list    list[0];
 };
 
-#define OF_FLASH_PARTS(info)    ((info)->parts)
-static int parse_obsolete_partitions(struct platform_device *dev,
-                                     struct of_flash *info,
-                                     struct device_node *dp)
-{
-        int i, plen, nr_parts;
-        const struct {
-                __be32 offset, len;
-        } *part;
-        const char *names;
-
-        part = of_get_property(dp, "partitions", &plen);
-        if (!part)
-                return 0; /* No partitions found */
-
-        dev_warn(&dev->dev, "Device tree uses obsolete partition map binding\n");
-
-        nr_parts = plen / sizeof(part[0]);
-
-        info->parts = kzalloc(nr_parts * sizeof(*info->parts), GFP_KERNEL);
-        if (!info->parts)
-                return -ENOMEM;
-
-        names = of_get_property(dp, "partition-names", &plen);
-
-        for (i = 0; i < nr_parts; i++) {
-                info->parts[i].offset = be32_to_cpu(part->offset);
-                info->parts[i].size   = be32_to_cpu(part->len) & ~1;
-                if (be32_to_cpu(part->len) & 1) /* bit 0 set signifies read only partition */
-                        info->parts[i].mask_flags = MTD_WRITEABLE;
-
-                if (names && (plen > 0)) {
-                        int len = strlen(names) + 1;
-
-                        info->parts[i].name = (char *)names;
-                        plen -= len;
-                        names += len;
-                } else {
-                        info->parts[i].name = "unnamed";
-                }
-
-                part++;
-        }
-
-        return nr_parts;
-}
-
 static int of_flash_remove(struct platform_device *dev)
 {
         struct of_flash *info;
@@ -101,11 +53,8 @@ static int of_flash_remove(struct platform_device *dev)
                 mtd_concat_destroy(info->cmtd);
         }
 
-        if (info->cmtd) {
-                if (OF_FLASH_PARTS(info))
-                        kfree(OF_FLASH_PARTS(info));
+        if (info->cmtd)
                 mtd_device_unregister(info->cmtd);
-        }
 
         for (i = 0; i < info->list_size; i++) {
                 if (info->list[i].mtd)
@@ -165,7 +114,8 @@ static struct mtd_info * __devinit obsolete_probe(struct platform_device *dev,
    specifies the list of partition probers to use. If none is given then the
    default is use. These take precedence over other device tree
    information. */
-static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot", NULL };
+static const char *part_probe_types_def[] = { "cmdlinepart", "RedBoot",
+                                        "ofpart", "ofoldpart", NULL };
 static const char ** __devinit of_get_probes(struct device_node *dp)
 {
         const char *cp;
@@ -218,6 +168,7 @@ static int __devinit of_flash_probe(struct platform_device *dev)
         int reg_tuple_size;
         struct mtd_info **mtd_list = NULL;
         resource_size_t res_size;
+        struct mtd_part_parser_data ppdata;
 
         match = of_match_device(of_flash_match, &dev->dev);
         if (!match)
@@ -331,29 +282,12 @@ static int __devinit of_flash_probe(struct platform_device *dev)
         if (err)
                 goto err_out;
 
+        ppdata.of_node = dp;
         part_probe_types = of_get_probes(dp);
-        err = parse_mtd_partitions(info->cmtd, part_probe_types,
-                                   &info->parts, 0);
-        if (err < 0) {
-                of_free_probes(part_probe_types);
-                goto err_out;
-        }
+        mtd_device_parse_register(info->cmtd, part_probe_types, &ppdata,
+                        NULL, 0);
         of_free_probes(part_probe_types);
 
-        if (err == 0) {
-                err = of_mtd_parse_partitions(&dev->dev, dp, &info->parts);
-                if (err < 0)
-                        goto err_out;
-        }
-
-        if (err == 0) {
-                err = parse_obsolete_partitions(dev, info, dp);
-                if (err < 0)
-                        goto err_out;
-        }
-
-        mtd_device_register(info->cmtd, info->parts, err);
-
         kfree(mtd_list);
 
         return 0;
diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 9ca1eccba4bc..94f553489725 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -44,8 +44,6 @@ struct platram_info {
         struct device           *dev;
         struct mtd_info         *mtd;
         struct map_info          map;
-        struct mtd_partition    *partitions;
-        bool                    free_partitions;
         struct resource         *area;
         struct platdata_mtd_ram *pdata;
 };
@@ -95,10 +93,6 @@ static int platram_remove(struct platform_device *pdev)
 
         if (info->mtd) {
                 mtd_device_unregister(info->mtd);
-                if (info->partitions) {
-                        if (info->free_partitions)
-                                kfree(info->partitions);
-                }
                 map_destroy(info->mtd);
         }
 
@@ -228,21 +222,8 @@ static int platram_probe(struct platform_device *pdev)
         /* check to see if there are any available partitions, or wether
          * to add this device whole */
 
-        if (!pdata->nr_partitions) {
-                /* try to probe using the supplied probe type */
-                if (pdata->probes) {
-                        err = parse_mtd_partitions(info->mtd, pdata->probes,
-                                           &info->partitions, 0);
-                        info->free_partitions = 1;
-                        if (err > 0)
-                                err = mtd_device_register(info->mtd,
-                                        info->partitions, err);
-                }
-        }
-        /* use the static mapping */
-        else
-                err = mtd_device_register(info->mtd, pdata->partitions,
-                                          pdata->nr_partitions);
+        err = mtd_device_parse_register(info->mtd, pdata->probes, 0,
+                        pdata->partitions, pdata->nr_partitions);
         if (!err)
                 dev_info(&pdev->dev, "registered mtd device\n");
 
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index 7ae137d4b998..411a17df9fc1 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -41,8 +41,6 @@ static void pxa2xx_map_inval_cache(struct map_info *map, unsigned long from,
 }
 
 struct pxa2xx_flash_info {
-        struct mtd_partition    *parts;
-        int                     nr_parts;
         struct mtd_info         *mtd;
         struct map_info         map;
 };
@@ -55,9 +53,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
 {
         struct flash_platform_data *flash = pdev->dev.platform_data;
         struct pxa2xx_flash_info *info;
-        struct mtd_partition *parts;
         struct resource *res;
-        int ret = 0;
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!res)
@@ -71,8 +67,6 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
         info->map.bankwidth = flash->width;
         info->map.phys = res->start;
         info->map.size = resource_size(res);
-        info->parts = flash->parts;
-        info->nr_parts = flash->nr_parts;
 
         info->map.virt = ioremap(info->map.phys, info->map.size);
         if (!info->map.virt) {
@@ -104,18 +98,7 @@ static int __devinit pxa2xx_flash_probe(struct platform_device *pdev)
         }
         info->mtd->owner = THIS_MODULE;
 
-        ret = parse_mtd_partitions(info->mtd, probes, &parts, 0);
-
-        if (ret > 0) {
-                info->nr_parts = ret;
-                info->parts = parts;
-        }
-
-        if (!info->nr_parts)
-                printk("Registering %s as whole device\n",
-                       info->map.name);
-
-        mtd_device_register(info->mtd, info->parts, info->nr_parts);
+        mtd_device_parse_register(info->mtd, probes, 0, NULL, 0);
 
         platform_set_drvdata(pdev, info);
         return 0;
@@ -133,7 +116,6 @@ static int __devexit pxa2xx_flash_remove(struct platform_device *dev)
         iounmap(info->map.virt);
         if (info->map.cached)
                 iounmap(info->map.cached);
-        kfree(info->parts);
         kfree(info);
         return 0;
 }
diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c
index 761fb459d2c7..0237f197fd12 100644
--- a/drivers/mtd/maps/rbtx4939-flash.c
+++ b/drivers/mtd/maps/rbtx4939-flash.c
@@ -25,8 +25,6 @@
 struct rbtx4939_flash_info {
         struct mtd_info *mtd;
         struct map_info map;
-        int nr_parts;
-        struct mtd_partition *parts;
 };
 
 static int rbtx4939_flash_remove(struct platform_device *dev)
@@ -41,8 +39,6 @@ static int rbtx4939_flash_remove(struct platform_device *dev)
         if (info->mtd) {
                 struct rbtx4939_flash_data *pdata = dev->dev.platform_data;
 
-                if (info->nr_parts)
-                        kfree(info->parts);
                 mtd_device_unregister(info->mtd);
                 map_destroy(info->mtd);
         }
@@ -50,7 +46,6 @@ static int rbtx4939_flash_remove(struct platform_device *dev)
 }
 
 static const char *rom_probe_types[] = { "cfi_probe", "jedec_probe", NULL };
-static const char *part_probe_types[] = { "cmdlinepart", NULL };
 
 static int rbtx4939_flash_probe(struct platform_device *dev)
 {
@@ -107,22 +102,11 @@ static int rbtx4939_flash_probe(struct platform_device *dev)
         info->mtd->owner = THIS_MODULE;
         if (err)
                 goto err_out;
+        err = mtd_device_parse_register(info->mtd, NULL, 0,
+                        pdata->parts, pdata->nr_parts);
 
-        err = parse_mtd_partitions(info->mtd, part_probe_types,
-                                &info->parts, 0);
-        if (err > 0) {
-                mtd_device_register(info->mtd, info->parts, err);
-                info->nr_parts = err;
-                return 0;
-        }
-
-        if (pdata->nr_parts) {
-                pr_notice("Using rbtx4939 partition information\n");
-                mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts);
-                return 0;
-        }
-
-        mtd_device_register(info->mtd, NULL, 0);
+        if (err)
+                goto err_out;
         return 0;
 
 err_out:
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index a9b5e0e5c4c5..fa9c0a9670cd 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -131,10 +131,8 @@ struct sa_subdev_info {
 };
 
 struct sa_info {
-        struct mtd_partition    *parts;
         struct mtd_info         *mtd;
         int                     num_subdev;
-        unsigned int            nr_parts;
         struct sa_subdev_info   subdev[0];
 };
 
@@ -231,8 +229,6 @@ static void sa1100_destroy(struct sa_info *info, struct flash_platform_data *pla
                         mtd_concat_destroy(info->mtd);
         }
 
-        kfree(info->parts);
-
         for (i = info->num_subdev - 1; i >= 0; i--)
                 sa1100_destroy_subdev(&info->subdev[i]);
         kfree(info);
@@ -341,10 +337,8 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL };
 static int __devinit sa1100_mtd_probe(struct platform_device *pdev)
 {
         struct flash_platform_data *plat = pdev->dev.platform_data;
-        struct mtd_partition *parts;
-        const char *part_type = NULL;
         struct sa_info *info;
-        int err, nr_parts = 0;
+        int err;
 
         if (!plat)
                 return -ENODEV;
@@ -358,26 +352,8 @@ static int __devinit sa1100_mtd_probe(struct platform_device *pdev)
         /*
          * Partition selection stuff.
          */
-        nr_parts = parse_mtd_partitions(info->mtd, part_probes, &parts, 0);
-        if (nr_parts > 0) {
-                info->parts = parts;
-                part_type = "dynamic";
-        } else {
-                parts = plat->parts;
-                nr_parts = plat->nr_parts;
-                part_type = "static";
-        }
-
-        if (nr_parts == 0)
-                printk(KERN_NOTICE "SA1100 flash: no partition info "
-                        "available, registering whole flash\n");
-        else
-                printk(KERN_NOTICE "SA1100 flash: using %s partition "
-                        "definition\n", part_type);
-
-        mtd_device_register(info->mtd, parts, nr_parts);
-
-        info->nr_parts = nr_parts;
+        mtd_device_parse_register(info->mtd, part_probes, 0,
+                        plat->parts, plat->nr_parts);
 
         platform_set_drvdata(pdev, info);
         err = 0;
diff --git a/drivers/mtd/maps/solutionengine.c b/drivers/mtd/maps/solutionengine.c
index cbf6bade9354..496c40704aff 100644
--- a/drivers/mtd/maps/solutionengine.c
+++ b/drivers/mtd/maps/solutionengine.c
@@ -19,8 +19,6 @@
 static struct mtd_info *flash_mtd;
 static struct mtd_info *eprom_mtd;
 
-static struct mtd_partition *parsed_parts;
-
 struct map_info soleng_eprom_map = {
         .name = "Solution Engine EPROM",
         .size = 0x400000,
@@ -51,12 +49,14 @@ static struct mtd_partition superh_se_partitions[] = {
                 .size = MTDPART_SIZ_FULL,
         }
 };
+#define NUM_PARTITIONS ARRAY_SIZE(superh_se_partitions)
+#else
+#define superh_se_partitions NULL
+#define NUM_PARTITIONS 0
 #endif /* CONFIG_MTD_SUPERH_RESERVE */
 
 static int __init init_soleng_maps(void)
 {
-        int nr_parts = 0;
-
         /* First probe at offset 0 */
         soleng_flash_map.phys = 0;
         soleng_flash_map.virt = (void __iomem *)P2SEGADDR(0);
@@ -92,21 +92,8 @@ static int __init init_soleng_maps(void)
                 mtd_device_register(eprom_mtd, NULL, 0);
         }
 
-        nr_parts = parse_mtd_partitions(flash_mtd, probes, &parsed_parts, 0);
-
-#ifdef CONFIG_MTD_SUPERH_RESERVE
-        if (nr_parts <= 0) {
-                printk(KERN_NOTICE "Using configured partition at 0x%08x.\n",
-                       CONFIG_MTD_SUPERH_RESERVE);
-                parsed_parts = superh_se_partitions;
-                nr_parts = sizeof(superh_se_partitions)/sizeof(*parsed_parts);
-        }
-#endif /* CONFIG_MTD_SUPERH_RESERVE */
-
-        if (nr_parts > 0)
-                mtd_device_register(flash_mtd, parsed_parts, nr_parts);
-        else
-                mtd_device_register(flash_mtd, NULL, 0);
+        mtd_device_parse_register(flash_mtd, probes, 0,
+                        superh_se_partitions, NUM_PARTITIONS);
 
         return 0;
 }
@@ -118,10 +105,7 @@ static void __exit cleanup_soleng_maps(void)
                 map_destroy(eprom_mtd);
         }
 
-        if (parsed_parts)
-                mtd_device_unregister(flash_mtd);
-        else
-                mtd_device_unregister(flash_mtd);
+        mtd_device_unregister(flash_mtd);
         map_destroy(flash_mtd);
 }
 
diff --git a/drivers/mtd/maps/wr_sbc82xx_flash.c b/drivers/mtd/maps/wr_sbc82xx_flash.c
index 901ce968efae..aa7e0cb2893c 100644
--- a/drivers/mtd/maps/wr_sbc82xx_flash.c
+++ b/drivers/mtd/maps/wr_sbc82xx_flash.c
@@ -20,7 +20,6 @@
 #include <asm/immap_cpm2.h>
 
 static struct mtd_info *sbcmtd[3];
-static struct mtd_partition *sbcmtd_parts[3];
 
 struct map_info sbc82xx_flash_map[3] = {
         {.name = "Boot flash"},
@@ -101,6 +100,7 @@ static int __init init_sbc82xx_flash(void)
         for (i=0; i<3; i++) {
                 int8_t flashcs[3] = { 0, 6, 1 };
                 int nr_parts;
+                struct mtd_partition *defparts;
 
                 printk(KERN_NOTICE "PowerQUICC II %s (%ld MiB on CS%d",
                        sbc82xx_flash_map[i].name,
@@ -113,7 +113,8 @@ static int __init init_sbc82xx_flash(void)
                 }
                 printk(" at %08lx)\n",  sbc82xx_flash_map[i].phys);
 
-                sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys, sbc82xx_flash_map[i].size);
+                sbc82xx_flash_map[i].virt = ioremap(sbc82xx_flash_map[i].phys,
+                                                    sbc82xx_flash_map[i].size);
 
                 if (!sbc82xx_flash_map[i].virt) {
                         printk("Failed to ioremap\n");
@@ -129,24 +130,20 @@ static int __init init_sbc82xx_flash(void)
 
                 sbcmtd[i]->owner = THIS_MODULE;
 
-                nr_parts = parse_mtd_partitions(sbcmtd[i], part_probes,
-                                                &sbcmtd_parts[i], 0);
-                if (nr_parts > 0) {
-                        mtd_device_register(sbcmtd[i], sbcmtd_parts[i],
-                                            nr_parts);
-                        continue;
-                }
-
                 /* No partitioning detected. Use default */
                 if (i == 2) {
-                        mtd_device_register(sbcmtd[i], NULL, 0);
+                        defparts = NULL;
+                        nr_parts = 0;
                 } else if (i == bigflash) {
-                        mtd_device_register(sbcmtd[i], bigflash_parts,
-                                            ARRAY_SIZE(bigflash_parts));
+                        defparts = bigflash_parts;
+                        nr_parts = ARRAY_SIZE(bigflash_parts);
                 } else {
-                        mtd_device_register(sbcmtd[i], smallflash_parts,
-                                            ARRAY_SIZE(smallflash_parts));
+                        defparts = smallflash_parts;
+                        nr_parts = ARRAY_SIZE(smallflash_parts);
                 }
+
+                mtd_device_parse_register(sbcmtd[i], part_probes, 0,
+                                          defparts, nr_parts);
         }
         return 0;
 }
@@ -159,12 +156,8 @@ static void __exit cleanup_sbc82xx_flash(void)
                 if (!sbcmtd[i])
                         continue;
 
-                if (i<2 || sbcmtd_parts[i])
-                        mtd_device_unregister(sbcmtd[i]);
-                else
-                        mtd_device_unregister(sbcmtd[i]);
+                mtd_device_unregister(sbcmtd[i]);
 
-                kfree(sbcmtd_parts[i]);
                 map_destroy(sbcmtd[i]);
 
                 iounmap((void *)sbc82xx_flash_map[i].virt);
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index ca385697446e..ed8b5e744b12 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -426,6 +426,8 @@ int add_mtd_blktrans_dev(struct mtd_blktrans_dev *new)
         new->rq->queuedata = new;
         blk_queue_logical_block_size(new->rq, tr->blksize);
 
+        queue_flag_set_unlocked(QUEUE_FLAG_NONROT, new->rq);
+
         if (tr->discard) {
                 queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, new->rq);
                 new->rq->limits.max_discard_sectors = UINT_MAX;
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 3326615ad66b..7c1dc908a174 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -44,7 +44,7 @@ struct mtdblk_dev {
         enum { STATE_EMPTY, STATE_CLEAN, STATE_DIRTY } cache_state;
 };
 
-static struct mutex mtdblks_lock;
+static DEFINE_MUTEX(mtdblks_lock);
 
 /*
  * Cache stuff...
@@ -119,7 +119,7 @@ static int write_cached_data (struct mtdblk_dev *mtdblk)
         if (mtdblk->cache_state != STATE_DIRTY)
                 return 0;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: writing cached data for \"%s\" "
+        pr_debug("mtdblock: writing cached data for \"%s\" "
                         "at 0x%lx, size 0x%x\n", mtd->name,
                         mtdblk->cache_offset, mtdblk->cache_size);
 
@@ -148,7 +148,7 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos,
         size_t retlen;
         int ret;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: write on \"%s\" at 0x%lx, size 0x%x\n",
+        pr_debug("mtdblock: write on \"%s\" at 0x%lx, size 0x%x\n",
                 mtd->name, pos, len);
 
         if (!sect_size)
@@ -218,7 +218,7 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos,
         size_t retlen;
         int ret;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n",
+        pr_debug("mtdblock: read on \"%s\" at 0x%lx, size 0x%x\n",
                         mtd->name, pos, len);
 
         if (!sect_size)
@@ -283,7 +283,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
 {
         struct mtdblk_dev *mtdblk = container_of(mbd, struct mtdblk_dev, mbd);
 
-        DEBUG(MTD_DEBUG_LEVEL1,"mtdblock_open\n");
+        pr_debug("mtdblock_open\n");
 
         mutex_lock(&mtdblks_lock);
         if (mtdblk->count) {
@@ -303,7 +303,7 @@ static int mtdblock_open(struct mtd_blktrans_dev *mbd)
 
         mutex_unlock(&mtdblks_lock);
 
-        DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
+        pr_debug("ok\n");
 
         return 0;
 }
@@ -312,7 +312,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 {
         struct mtdblk_dev *mtdblk = container_of(mbd, struct mtdblk_dev, mbd);
 
-        DEBUG(MTD_DEBUG_LEVEL1, "mtdblock_release\n");
+        pr_debug("mtdblock_release\n");
 
         mutex_lock(&mtdblks_lock);
 
@@ -329,7 +329,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 
         mutex_unlock(&mtdblks_lock);
 
-        DEBUG(MTD_DEBUG_LEVEL1, "ok\n");
+        pr_debug("ok\n");
 
         return 0;
 }
@@ -389,8 +389,6 @@ static struct mtd_blktrans_ops mtdblock_tr = {
 
 static int __init init_mtdblock(void)
 {
-        mutex_init(&mtdblks_lock);
-
         return register_mtd_blktrans(&mtdblock_tr);
 }
 
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 61086ea3cc6b..e7dc732ddabc 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -43,7 +43,7 @@ static struct vfsmount *mtd_inode_mnt __read_mostly;
 
 /*
  * Data structure to hold the pointer to the mtd device as well
- * as mode information ofr various use cases.
+ * as mode information of various use cases.
  */
 struct mtd_file_info {
         struct mtd_info *mtd;
@@ -86,7 +86,7 @@ static int mtd_open(struct inode *inode, struct file *file)
         struct mtd_file_info *mfi;
         struct inode *mtd_ino;
 
-        DEBUG(MTD_DEBUG_LEVEL0, "MTD_open\n");
+        pr_debug("MTD_open\n");
 
         /* You can't open the RO devices RW */
         if ((file->f_mode & FMODE_WRITE) && (minor & 1))
@@ -151,7 +151,7 @@ static int mtd_close(struct inode *inode, struct file *file)
         struct mtd_file_info *mfi = file->private_data;
         struct mtd_info *mtd = mfi->mtd;
 
-        DEBUG(MTD_DEBUG_LEVEL0, "MTD_close\n");
+        pr_debug("MTD_close\n");
 
         /* Only sync if opened RW */
         if ((file->f_mode & FMODE_WRITE) && mtd->sync)
@@ -195,7 +195,7 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
         size_t size = count;
         char *kbuf;
 
-        DEBUG(MTD_DEBUG_LEVEL0,"MTD_read\n");
+        pr_debug("MTD_read\n");
 
         if (*ppos + count > mtd->size)
                 count = mtd->size - *ppos;
@@ -211,17 +211,17 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
                 len = min_t(size_t, count, size);
 
                 switch (mfi->mode) {
-                case MTD_MODE_OTP_FACTORY:
+                case MTD_FILE_MODE_OTP_FACTORY:
                         ret = mtd->read_fact_prot_reg(mtd, *ppos, len, &retlen, kbuf);
                         break;
-                case MTD_MODE_OTP_USER:
+                case MTD_FILE_MODE_OTP_USER:
                         ret = mtd->read_user_prot_reg(mtd, *ppos, len, &retlen, kbuf);
                         break;
-                case MTD_MODE_RAW:
+                case MTD_FILE_MODE_RAW:
                 {
                         struct mtd_oob_ops ops;
 
-                        ops.mode = MTD_OOB_RAW;
+                        ops.mode = MTD_OPS_RAW;
                         ops.datbuf = kbuf;
                         ops.oobbuf = NULL;
                         ops.len = len;
@@ -233,16 +233,16 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
                 default:
                         ret = mtd->read(mtd, *ppos, len, &retlen, kbuf);
                 }
-                /* Nand returns -EBADMSG on ecc errors, but it returns
+                /* Nand returns -EBADMSG on ECC errors, but it returns
                  * the data. For our userspace tools it is important
-                 * to dump areas with ecc errors !
+                 * to dump areas with ECC errors!
                  * For kernel internal usage it also might return -EUCLEAN
                  * to signal the caller that a bitflip has occurred and has
                  * been corrected by the ECC algorithm.
                  * Userspace software which accesses NAND this way
                  * must be aware of the fact that it deals with NAND
                  */
-                if (!ret || (ret == -EUCLEAN) || (ret == -EBADMSG)) {
+                if (!ret || mtd_is_bitflip_or_eccerr(ret)) {
                         *ppos += retlen;
                         if (copy_to_user(buf, kbuf, retlen)) {
                                 kfree(kbuf);
@@ -278,7 +278,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
         int ret=0;
         int len;
 
-        DEBUG(MTD_DEBUG_LEVEL0,"MTD_write\n");
+        pr_debug("MTD_write\n");
 
         if (*ppos == mtd->size)
                 return -ENOSPC;
@@ -302,10 +302,10 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
                 }
 
                 switch (mfi->mode) {
-                case MTD_MODE_OTP_FACTORY:
+                case MTD_FILE_MODE_OTP_FACTORY:
                         ret = -EROFS;
                         break;
-                case MTD_MODE_OTP_USER:
+                case MTD_FILE_MODE_OTP_USER:
                         if (!mtd->write_user_prot_reg) {
                                 ret = -EOPNOTSUPP;
                                 break;
@@ -313,13 +313,14 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
                         ret = mtd->write_user_prot_reg(mtd, *ppos, len, &retlen, kbuf);
                         break;
 
-                case MTD_MODE_RAW:
+                case MTD_FILE_MODE_RAW:
                 {
                         struct mtd_oob_ops ops;
 
-                        ops.mode = MTD_OOB_RAW;
+                        ops.mode = MTD_OPS_RAW;
                         ops.datbuf = kbuf;
                         ops.oobbuf = NULL;
+                        ops.ooboffs = 0;
                         ops.len = len;
 
                         ret = mtd->write_oob(mtd, *ppos, &ops);
@@ -367,13 +368,13 @@ static int otp_select_filemode(struct mtd_file_info *mfi, int mode)
                 if (!mtd->read_fact_prot_reg)
                         ret = -EOPNOTSUPP;
                 else
-                        mfi->mode = MTD_MODE_OTP_FACTORY;
+                        mfi->mode = MTD_FILE_MODE_OTP_FACTORY;
                 break;
         case MTD_OTP_USER:
                 if (!mtd->read_fact_prot_reg)
                         ret = -EOPNOTSUPP;
                 else
-                        mfi->mode = MTD_MODE_OTP_USER;
+                        mfi->mode = MTD_FILE_MODE_OTP_USER;
                 break;
         default:
                 ret = -EINVAL;
@@ -390,6 +391,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
         uint64_t start, uint32_t length, void __user *ptr,
         uint32_t __user *retp)
 {
+        struct mtd_file_info *mfi = file->private_data;
         struct mtd_oob_ops ops;
         uint32_t retlen;
         int ret = 0;
@@ -409,9 +411,10 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
                 return ret;
 
         ops.ooblen = length;
-        ops.ooboffs = start & (mtd->oobsize - 1);
+        ops.ooboffs = start & (mtd->writesize - 1);
         ops.datbuf = NULL;
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = (mfi->mode == MTD_FILE_MODE_RAW) ? MTD_OPS_RAW :
+                MTD_OPS_PLACE_OOB;
 
         if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))
                 return -EINVAL;
@@ -420,7 +423,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
         if (IS_ERR(ops.oobbuf))
                 return PTR_ERR(ops.oobbuf);
 
-        start &= ~((uint64_t)mtd->oobsize - 1);
+        start &= ~((uint64_t)mtd->writesize - 1);
         ret = mtd->write_oob(mtd, start, &ops);
 
         if (ops.oobretlen > 0xFFFFFFFFU)
@@ -433,9 +436,11 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
         return ret;
 }
 
-static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start,
-        uint32_t length, void __user *ptr, uint32_t __user *retp)
+static int mtd_do_readoob(struct file *file, struct mtd_info *mtd,
+        uint64_t start, uint32_t length, void __user *ptr,
+        uint32_t __user *retp)
 {
+        struct mtd_file_info *mfi = file->private_data;
         struct mtd_oob_ops ops;
         int ret = 0;
 
@@ -451,9 +456,10 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start,
                 return ret;
 
         ops.ooblen = length;
-        ops.ooboffs = start & (mtd->oobsize - 1);
+        ops.ooboffs = start & (mtd->writesize - 1);
         ops.datbuf = NULL;
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = (mfi->mode == MTD_FILE_MODE_RAW) ? MTD_OPS_RAW :
+                MTD_OPS_PLACE_OOB;
 
         if (ops.ooboffs && ops.ooblen > (mtd->oobsize - ops.ooboffs))
                 return -EINVAL;
@@ -462,7 +468,7 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start,
         if (!ops.oobbuf)
                 return -ENOMEM;
 
-        start &= ~((uint64_t)mtd->oobsize - 1);
+        start &= ~((uint64_t)mtd->writesize - 1);
         ret = mtd->read_oob(mtd, start, &ops);
 
         if (put_user(ops.oobretlen, retp))
@@ -472,13 +478,29 @@ static int mtd_do_readoob(struct mtd_info *mtd, uint64_t start,
                 ret = -EFAULT;
 
         kfree(ops.oobbuf);
+
+        /*
+         * NAND returns -EBADMSG on ECC errors, but it returns the OOB
+         * data. For our userspace tools it is important to dump areas
+         * with ECC errors!
+         * For kernel internal usage it also might return -EUCLEAN
+         * to signal the caller that a bitflip has occured and has
+         * been corrected by the ECC algorithm.
+         *
+         * Note: currently the standard NAND function, nand_read_oob_std,
+         * does not calculate ECC for the OOB area, so do not rely on
+         * this behavior unless you have replaced it with your own.
+         */
+        if (mtd_is_bitflip_or_eccerr(ret))
+                return 0;
+
         return ret;
 }
 
 /*
  * Copies (and truncates, if necessary) data from the larger struct,
  * nand_ecclayout, to the smaller, deprecated layout struct,
- * nand_ecclayout_user. This is necessary only to suppport the deprecated
+ * nand_ecclayout_user. This is necessary only to support the deprecated
  * API ioctl ECCGETLAYOUT while allowing all new functionality to use
  * nand_ecclayout flexibly (i.e. the struct may change size in new
  * releases without requiring major rewrites).
@@ -544,6 +566,55 @@ static int mtd_blkpg_ioctl(struct mtd_info *mtd,
         }
 }
 
+static int mtd_write_ioctl(struct mtd_info *mtd,
+                struct mtd_write_req __user *argp)
+{
+        struct mtd_write_req req;
+        struct mtd_oob_ops ops;
+        void __user *usr_data, *usr_oob;
+        int ret;
+
+        if (copy_from_user(&req, argp, sizeof(req)) ||
+                        !access_ok(VERIFY_READ, req.usr_data, req.len) ||
+                        !access_ok(VERIFY_READ, req.usr_oob, req.ooblen))
+                return -EFAULT;
+        if (!mtd->write_oob)
+                return -EOPNOTSUPP;
+
+        ops.mode = req.mode;
+        ops.len = (size_t)req.len;
+        ops.ooblen = (size_t)req.ooblen;
+        ops.ooboffs = 0;
+
+        usr_data = (void __user *)(uintptr_t)req.usr_data;
+        usr_oob = (void __user *)(uintptr_t)req.usr_oob;
+
+        if (req.usr_data) {
+                ops.datbuf = memdup_user(usr_data, ops.len);
+                if (IS_ERR(ops.datbuf))
+                        return PTR_ERR(ops.datbuf);
+        } else {
+                ops.datbuf = NULL;
+        }
+
+        if (req.usr_oob) {
+                ops.oobbuf = memdup_user(usr_oob, ops.ooblen);
+                if (IS_ERR(ops.oobbuf)) {
+                        kfree(ops.datbuf);
+                        return PTR_ERR(ops.oobbuf);
+                }
+        } else {
+                ops.oobbuf = NULL;
+        }
+
+        ret = mtd->write_oob(mtd, (loff_t)req.start, &ops);
+
+        kfree(ops.datbuf);
+        kfree(ops.oobbuf);
+
+        return ret;
+}
+
 static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 {
         struct mtd_file_info *mfi = file->private_data;
@@ -553,7 +624,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
         u_long size;
         struct mtd_info_user info;
 
-        DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n");
+        pr_debug("MTD_ioctl\n");
 
         size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT;
         if (cmd & IOC_IN) {
@@ -601,8 +672,8 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 info.erasesize  = mtd->erasesize;
                 info.writesize  = mtd->writesize;
                 info.oobsize    = mtd->oobsize;
-                /* The below fields are obsolete */
-                info.ecctype    = -1;
+                /* The below field is obsolete */
+                info.padding    = 0;
                 if (copy_to_user(argp, &info, sizeof(struct mtd_info_user)))
                         return -EFAULT;
                 break;
@@ -698,7 +769,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 if (copy_from_user(&buf, argp, sizeof(buf)))
                         ret = -EFAULT;
                 else
-                        ret = mtd_do_readoob(mtd, buf.start, buf.length,
+                        ret = mtd_do_readoob(file, mtd, buf.start, buf.length,
                                 buf.ptr, &buf_user->start);
                 break;
         }
@@ -725,12 +796,19 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 if (copy_from_user(&buf, argp, sizeof(buf)))
                         ret = -EFAULT;
                 else
-                        ret = mtd_do_readoob(mtd, buf.start, buf.length,
+                        ret = mtd_do_readoob(file, mtd, buf.start, buf.length,
                                 (void __user *)(uintptr_t)buf.usr_ptr,
                                 &buf_user->length);
                 break;
         }
 
+        case MEMWRITE:
+        {
+                ret = mtd_write_ioctl(mtd,
+                      (struct mtd_write_req __user *)arg);
+                break;
+        }
+
         case MEMLOCK:
         {
                 struct erase_info_user einfo;
@@ -827,7 +905,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 if (copy_from_user(&mode, argp, sizeof(int)))
                         return -EFAULT;
 
-                mfi->mode = MTD_MODE_NORMAL;
+                mfi->mode = MTD_FILE_MODE_NORMAL;
 
                 ret = otp_select_filemode(mfi, mode);
 
@@ -843,11 +921,11 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                         return -ENOMEM;
                 ret = -EOPNOTSUPP;
                 switch (mfi->mode) {
-                case MTD_MODE_OTP_FACTORY:
+                case MTD_FILE_MODE_OTP_FACTORY:
                         if (mtd->get_fact_prot_info)
                                 ret = mtd->get_fact_prot_info(mtd, buf, 4096);
                         break;
-                case MTD_MODE_OTP_USER:
+                case MTD_FILE_MODE_OTP_USER:
                         if (mtd->get_user_prot_info)
                                 ret = mtd->get_user_prot_info(mtd, buf, 4096);
                         break;
@@ -871,7 +949,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
         {
                 struct otp_info oinfo;
 
-                if (mfi->mode != MTD_MODE_OTP_USER)
+                if (mfi->mode != MTD_FILE_MODE_OTP_USER)
                         return -EINVAL;
                 if (copy_from_user(&oinfo, argp, sizeof(oinfo)))
                         return -EFAULT;
@@ -882,7 +960,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
         }
 #endif
 
-        /* This ioctl is being deprecated - it truncates the ecc layout */
+        /* This ioctl is being deprecated - it truncates the ECC layout */
         case ECCGETLAYOUT:
         {
                 struct nand_ecclayout_user *usrlay;
@@ -915,17 +993,17 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
                 mfi->mode = 0;
 
                 switch(arg) {
-                case MTD_MODE_OTP_FACTORY:
-                case MTD_MODE_OTP_USER:
+                case MTD_FILE_MODE_OTP_FACTORY:
+                case MTD_FILE_MODE_OTP_USER:
                         ret = otp_select_filemode(mfi, arg);
                         break;
 
-                case MTD_MODE_RAW:
+                case MTD_FILE_MODE_RAW:
                         if (!mtd->read_oob || !mtd->write_oob)
                                 return -EOPNOTSUPP;
                         mfi->mode = arg;
 
-                case MTD_MODE_NORMAL:
+                case MTD_FILE_MODE_NORMAL:
                         break;
                 default:
                         ret = -EINVAL;
@@ -1011,7 +1089,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
                 if (copy_from_user(&buf, argp, sizeof(buf)))
                         ret = -EFAULT;
                 else
-                        ret = mtd_do_readoob(mtd, buf.start,
+                        ret = mtd_do_readoob(file, mtd, buf.start,
                                 buf.length, compat_ptr(buf.ptr),
                                 &buf_user->start);
                 break;
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index e601672a5305..6df4d4d4eb92 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -95,10 +95,10 @@ concat_read(struct mtd_info *mtd, loff_t from, size_t len,
 
                 /* Save information about bitflips! */
                 if (unlikely(err)) {
-                        if (err == -EBADMSG) {
+                        if (mtd_is_eccerr(err)) {
                                 mtd->ecc_stats.failed++;
                                 ret = err;
-                        } else if (err == -EUCLEAN) {
+                        } else if (mtd_is_bitflip(err)) {
                                 mtd->ecc_stats.corrected++;
                                 /* Do not overwrite -EBADMSG !! */
                                 if (!ret)
@@ -279,10 +279,10 @@ concat_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
 
                 /* Save information about bitflips! */
                 if (unlikely(err)) {
-                        if (err == -EBADMSG) {
+                        if (mtd_is_eccerr(err)) {
                                 mtd->ecc_stats.failed++;
                                 ret = err;
-                        } else if (err == -EUCLEAN) {
+                        } else if (mtd_is_bitflip(err)) {
                                 mtd->ecc_stats.corrected++;
                                 /* Do not overwrite -EBADMSG !! */
                                 if (!ret)
@@ -770,7 +770,7 @@ struct mtd_info *mtd_concat_create(struct mtd_info *subdev[],	/* subdevices to c
 
         /*
          * Set up the new "super" device's MTD object structure, check for
-         * incompatibilites between the subdevices.
+         * incompatibilities between the subdevices.
          */
         concat->mtd.type = subdev[0]->type;
         concat->mtd.flags = subdev[0]->flags;
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index c510aff289a8..b01993ea260e 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -362,7 +362,7 @@ int add_mtd_device(struct mtd_info *mtd)
                               MTD_DEVT(i) + 1,
                               NULL, "mtd%dro", i);
 
-        DEBUG(0, "mtd: Giving out device %d to %s\n", i, mtd->name);
+        pr_debug("mtd: Giving out device %d to %s\n", i, mtd->name);
         /* No need to get a refcount on the module containing
            the notifier, since we hold the mtd_table_mutex */
         list_for_each_entry(not, &mtd_notifiers, list)
@@ -429,27 +429,63 @@ out_error:
 }
 
 /**
- * mtd_device_register - register an MTD device.
+ * mtd_device_parse_register - parse partitions and register an MTD device.
  *
- * @master: the MTD device to register
- * @parts: the partitions to register - only valid if nr_parts > 0
- * @nr_parts: the number of partitions in parts.  If zero then the full MTD
- *            device is registered
+ * @mtd: the MTD device to register
+ * @types: the list of MTD partition probes to try, see
+ *         'parse_mtd_partitions()' for more information
+ * @parser_data: MTD partition parser-specific data
+ * @parts: fallback partition information to register, if parsing fails;
+ *         only valid if %nr_parts > %0
+ * @nr_parts: the number of partitions in parts, if zero then the full
+ *            MTD device is registered if no partition info is found
  *
- * Register an MTD device with the system and optionally, a number of
- * partitions.  If nr_parts is 0 then the whole device is registered, otherwise
- * only the partitions are registered.  To register both the full device *and*
- * the partitions, call mtd_device_register() twice, once with nr_parts == 0
- * and once equal to the number of partitions.
+ * This function aggregates MTD partitions parsing (done by
+ * 'parse_mtd_partitions()') and MTD device and partitions registering. It
+ * basically follows the most common pattern found in many MTD drivers:
+ *
+ * * It first tries to probe partitions on MTD device @mtd using parsers
+ *   specified in @types (if @types is %NULL, then the default list of parsers
+ *   is used, see 'parse_mtd_partitions()' for more information). If none are
+ *   found this functions tries to fallback to information specified in
+ *   @parts/@nr_parts.
+ * * If any partitioning info was found, this function registers the found
+ *   partitions.
+ * * If no partitions were found this function just registers the MTD device
+ *   @mtd and exits.
+ *
+ * Returns zero in case of success and a negative error code in case of failure.
  */
-int mtd_device_register(struct mtd_info *master,
-                        const struct mtd_partition *parts,
-                        int nr_parts)
+int mtd_device_parse_register(struct mtd_info *mtd, const char **types,
+                              struct mtd_part_parser_data *parser_data,
+                              const struct mtd_partition *parts,
+                              int nr_parts)
 {
-        return parts ? add_mtd_partitions(master, parts, nr_parts) :
-                add_mtd_device(master);
+        int err;
+        struct mtd_partition *real_parts;
+
+        err = parse_mtd_partitions(mtd, types, &real_parts, parser_data);
+        if (err <= 0 && nr_parts && parts) {
+                real_parts = kmemdup(parts, sizeof(*parts) * nr_parts,
+                                     GFP_KERNEL);
+                if (!real_parts)
+                        err = -ENOMEM;
+                else
+                        err = nr_parts;
+        }
+
+        if (err > 0) {
+                err = add_mtd_partitions(mtd, real_parts, err);
+                kfree(real_parts);
+        } else if (err == 0) {
+                err = add_mtd_device(mtd);
+                if (err == 1)
+                        err = -ENODEV;
+        }
+
+        return err;
 }
-EXPORT_SYMBOL_GPL(mtd_device_register);
+EXPORT_SYMBOL_GPL(mtd_device_parse_register);
 
 /**
  * mtd_device_unregister - unregister an existing MTD device.
diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h
index 0ed6126b4c1f..961a38408542 100644
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -15,6 +15,9 @@ extern int del_mtd_device(struct mtd_info *mtd);
 extern int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *,
                               int);
 extern int del_mtd_partitions(struct mtd_info *);
+extern int parse_mtd_partitions(struct mtd_info *master, const char **types,
+                                struct mtd_partition **pparts,
+                                struct mtd_part_parser_data *data);
 
 #define mtd_for_each_device(mtd)                        \
         for ((mtd) = __mtd_next_device(0);              \
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index e3e40f440323..1e2fa6236705 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -258,7 +258,7 @@ static void find_next_position(struct mtdoops_context *cxt)
                 ret = mtd->read(mtd, page * record_size, MTDOOPS_HEADER_SIZE,
                                 &retlen, (u_char *) &count[0]);
                 if (retlen != MTDOOPS_HEADER_SIZE ||
-                                (ret < 0 && ret != -EUCLEAN)) {
+                                (ret < 0 && !mtd_is_bitflip(ret))) {
                         printk(KERN_ERR "mtdoops: read failure at %ld (%td of %d read), err %d\n",
                                page * record_size, retlen,
                                MTDOOPS_HEADER_SIZE, ret);
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 630be3e7da04..a0bd2de4752b 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -73,9 +73,9 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
         res = part->master->read(part->master, from + part->offset,
                                    len, retlen, buf);
         if (unlikely(res)) {
-                if (res == -EUCLEAN)
+                if (mtd_is_bitflip(res))
                         mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
-                if (res == -EBADMSG)
+                if (mtd_is_eccerr(res))
                         mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed;
         }
         return res;
@@ -130,7 +130,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
         if (ops->oobbuf) {
                 size_t len, pages;
 
-                if (ops->mode == MTD_OOB_AUTO)
+                if (ops->mode == MTD_OPS_AUTO_OOB)
                         len = mtd->oobavail;
                 else
                         len = mtd->oobsize;
@@ -142,9 +142,9 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
 
         res = part->master->read_oob(part->master, from + part->offset, ops);
         if (unlikely(res)) {
-                if (res == -EUCLEAN)
+                if (mtd_is_bitflip(res))
                         mtd->ecc_stats.corrected++;
-                if (res == -EBADMSG)
+                if (mtd_is_eccerr(res))
                         mtd->ecc_stats.failed++;
         }
         return res;
@@ -479,6 +479,19 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
                                (unsigned long long)cur_offset, (unsigned long long)slave->offset);
                 }
         }
+        if (slave->offset == MTDPART_OFS_RETAIN) {
+                slave->offset = cur_offset;
+                if (master->size - slave->offset >= slave->mtd.size) {
+                        slave->mtd.size = master->size - slave->offset
+                                                        - slave->mtd.size;
+                } else {
+                        printk(KERN_ERR "mtd partition \"%s\" doesn't have enough space: %#llx < %#llx, disabled\n",
+                                part->name, master->size - slave->offset,
+                                slave->mtd.size);
+                        /* register to preserve ordering */
+                        goto out_register;
+                }
+        }
         if (slave->mtd.size == MTDPART_SIZ_FULL)
                 slave->mtd.size = master->size - slave->offset;
 
@@ -693,6 +706,8 @@ static struct mtd_part_parser *get_partition_parser(const char *name)
         return ret;
 }
 
+#define put_partition_parser(p) do { module_put((p)->owner); } while (0)
+
 int register_mtd_parser(struct mtd_part_parser *p)
 {
         spin_lock(&part_parser_lock);
@@ -712,19 +727,51 @@ int deregister_mtd_parser(struct mtd_part_parser *p)
 }
 EXPORT_SYMBOL_GPL(deregister_mtd_parser);
 
+/*
+ * Do not forget to update 'parse_mtd_partitions()' kerneldoc comment if you
+ * are changing this array!
+ */
+static const char *default_mtd_part_types[] = {
+        "cmdlinepart",
+        "ofpart",
+        NULL
+};
+
+/**
+ * parse_mtd_partitions - parse MTD partitions
+ * @master: the master partition (describes whole MTD device)
+ * @types: names of partition parsers to try or %NULL
+ * @pparts: array of partitions found is returned here
+ * @data: MTD partition parser-specific data
+ *
+ * This function tries to find partition on MTD device @master. It uses MTD
+ * partition parsers, specified in @types. However, if @types is %NULL, then
+ * the default list of parsers is used. The default list contains only the
+ * "cmdlinepart" and "ofpart" parsers ATM.
+ *
+ * This function may return:
+ * o a negative error code in case of failure
+ * o zero if no partitions were found
+ * o a positive number of found partitions, in which case on exit @pparts will
+ *   point to an array containing this number of &struct mtd_info objects.
+ */
 int parse_mtd_partitions(struct mtd_info *master, const char **types,
-                         struct mtd_partition **pparts, unsigned long origin)
+                         struct mtd_partition **pparts,
+                         struct mtd_part_parser_data *data)
 {
         struct mtd_part_parser *parser;
         int ret = 0;
 
+        if (!types)
+                types = default_mtd_part_types;
+
         for ( ; ret <= 0 && *types; types++) {
                 parser = get_partition_parser(*types);
                 if (!parser && !request_module("%s", *types))
                                 parser = get_partition_parser(*types);
                 if (!parser)
                         continue;
-                ret = (*parser->parse_fn)(master, pparts, origin);
+                ret = (*parser->parse_fn)(master, pparts, data);
                 if (ret > 0) {
                         printk(KERN_NOTICE "%d %s partitions found on MTD device %s\n",
                                ret, parser->name, master->name);
@@ -733,7 +780,6 @@ int parse_mtd_partitions(struct mtd_info *master, const char **types,
         }
         return ret;
 }
-EXPORT_SYMBOL_GPL(parse_mtd_partitions);
 
 int mtd_is_partition(struct mtd_info *mtd)
 {
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index 89f8e66448ab..a90bfe79916d 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -27,12 +27,12 @@ static int get_sb_mtd_compare(struct super_block *sb, void *_mtd)
         struct mtd_info *mtd = _mtd;
 
         if (sb->s_mtd == mtd) {
-                DEBUG(2, "MTDSB: Match on device %d (\"%s\")\n",
+                pr_debug("MTDSB: Match on device %d (\"%s\")\n",
                       mtd->index, mtd->name);
                 return 1;
         }
 
-        DEBUG(2, "MTDSB: No match, device %d (\"%s\"), device %d (\"%s\")\n",
+        pr_debug("MTDSB: No match, device %d (\"%s\"), device %d (\"%s\")\n",
               sb->s_mtd->index, sb->s_mtd->name, mtd->index, mtd->name);
         return 0;
 }
@@ -71,7 +71,7 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags,
                 goto already_mounted;
 
         /* fresh new superblock */
-        DEBUG(1, "MTDSB: New superblock for device %d (\"%s\")\n",
+        pr_debug("MTDSB: New superblock for device %d (\"%s\")\n",
               mtd->index, mtd->name);
 
         sb->s_flags = flags;
@@ -88,7 +88,7 @@ static struct dentry *mount_mtd_aux(struct file_system_type *fs_type, int flags,
 
         /* new mountpoint for an already mounted superblock */
 already_mounted:
-        DEBUG(1, "MTDSB: Device %d (\"%s\") is already mounted\n",
+        pr_debug("MTDSB: Device %d (\"%s\") is already mounted\n",
               mtd->index, mtd->name);
         put_mtd_device(mtd);
         return dget(sb->s_root);
@@ -109,7 +109,7 @@ static struct dentry *mount_mtd_nr(struct file_system_type *fs_type, int flags,
 
         mtd = get_mtd_device(NULL, mtdnr);
         if (IS_ERR(mtd)) {
-                DEBUG(0, "MTDSB: Device #%u doesn't appear to exist\n", mtdnr);
+                pr_debug("MTDSB: Device #%u doesn't appear to exist\n", mtdnr);
                 return ERR_CAST(mtd);
         }
 
@@ -132,7 +132,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
         if (!dev_name)
                 return ERR_PTR(-EINVAL);
 
-        DEBUG(2, "MTDSB: dev_name \"%s\"\n", dev_name);
+        pr_debug("MTDSB: dev_name \"%s\"\n", dev_name);
 
         /* the preferred way of mounting in future; especially when
          * CONFIG_BLOCK=n - we specify the underlying MTD device by number or
@@ -143,7 +143,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
                         struct mtd_info *mtd;
 
                         /* mount by MTD device name */
-                        DEBUG(1, "MTDSB: mtd:%%s, name \"%s\"\n",
+                        pr_debug("MTDSB: mtd:%%s, name \"%s\"\n",
                               dev_name + 4);
 
                         mtd = get_mtd_device_nm(dev_name + 4);
@@ -164,7 +164,7 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
                         mtdnr = simple_strtoul(dev_name + 3, &endptr, 0);
                         if (!*endptr) {
                                 /* It was a valid number */
-                                DEBUG(1, "MTDSB: mtd%%d, mtdnr %d\n",
+                                pr_debug("MTDSB: mtd%%d, mtdnr %d\n",
                                       mtdnr);
                                 return mount_mtd_nr(fs_type, flags,
                                                      dev_name, data,
@@ -180,10 +180,10 @@ struct dentry *mount_mtd(struct file_system_type *fs_type, int flags,
         bdev = lookup_bdev(dev_name);
         if (IS_ERR(bdev)) {
                 ret = PTR_ERR(bdev);
-                DEBUG(1, "MTDSB: lookup_bdev() returned %d\n", ret);
+                pr_debug("MTDSB: lookup_bdev() returned %d\n", ret);
                 return ERR_PTR(ret);
         }
-        DEBUG(1, "MTDSB: lookup_bdev() returned 0\n");
+        pr_debug("MTDSB: lookup_bdev() returned 0\n");
 
         ret = -EINVAL;
 
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index fd7885327611..bd9590c723e4 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -86,7 +86,7 @@ struct swap_eb {
         unsigned int flags;
         unsigned int active_count;
         unsigned int erase_count;
-        unsigned int pad;               /* speeds up pointer decremtnt */
+        unsigned int pad;               /* speeds up pointer decrement */
 };
 
 #define MTDSWAP_ECNT_MIN(rbroot) (rb_entry(rb_first(rbroot), struct swap_eb, \
@@ -314,7 +314,7 @@ static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from,
 {
         int ret = d->mtd->read_oob(d->mtd, from, ops);
 
-        if (ret == -EUCLEAN)
+        if (mtd_is_bitflip(ret))
                 return ret;
 
         if (ret) {
@@ -350,11 +350,11 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb)
         ops.oobbuf = d->oob_buf;
         ops.ooboffs = 0;
         ops.datbuf = NULL;
-        ops.mode = MTD_OOB_AUTO;
+        ops.mode = MTD_OPS_AUTO_OOB;
 
         ret = mtdswap_read_oob(d, offset, &ops);
 
-        if (ret && ret != -EUCLEAN)
+        if (ret && !mtd_is_bitflip(ret))
                 return ret;
 
         data = (struct mtdswap_oobdata *)d->oob_buf;
@@ -363,7 +363,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb)
 
         if (le16_to_cpu(data->magic) == MTDSWAP_MAGIC_CLEAN) {
                 eb->erase_count = le32_to_cpu(data->count);
-                if (ret == -EUCLEAN)
+                if (mtd_is_bitflip(ret))
                         ret = MTDSWAP_SCANNED_BITFLIP;
                 else {
                         if (le16_to_cpu(data2->magic) == MTDSWAP_MAGIC_DIRTY)
@@ -389,7 +389,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb,
 
         ops.ooboffs = 0;
         ops.oobbuf = (uint8_t *)&n;
-        ops.mode = MTD_OOB_AUTO;
+        ops.mode = MTD_OPS_AUTO_OOB;
         ops.datbuf = NULL;
 
         if (marker == MTDSWAP_TYPE_CLEAN) {
@@ -408,7 +408,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb,
         if (ret) {
                 dev_warn(d->dev, "Write OOB failed for block at %08llx "
                         "error %d\n", offset, ret);
-                if (ret == -EIO || ret == -EBADMSG)
+                if (ret == -EIO || mtd_is_eccerr(ret))
                         mtdswap_handle_write_error(d, eb);
                 return ret;
         }
@@ -628,7 +628,7 @@ static int mtdswap_map_free_block(struct mtdswap_dev *d, unsigned int page,
                         TREE_COUNT(d, CLEAN)--;
 
                         ret = mtdswap_write_marker(d, eb, MTDSWAP_TYPE_DIRTY);
-                } while (ret == -EIO || ret == -EBADMSG);
+                } while (ret == -EIO || mtd_is_eccerr(ret));
 
                 if (ret)
                         return ret;
@@ -678,7 +678,7 @@ retry:
         ret = mtdswap_map_free_block(d, page, bp);
         eb = d->eb_data + (*bp / d->pages_per_eblk);
 
-        if (ret == -EIO || ret == -EBADMSG) {
+        if (ret == -EIO || mtd_is_eccerr(ret)) {
                 d->curr_write = NULL;
                 eb->active_count--;
                 d->revmap[*bp] = PAGE_UNDEF;
@@ -690,7 +690,7 @@ retry:
 
         writepos = (loff_t)*bp << PAGE_SHIFT;
         ret =  mtd->write(mtd, writepos, PAGE_SIZE, &retlen, buf);
-        if (ret == -EIO || ret == -EBADMSG) {
+        if (ret == -EIO || mtd_is_eccerr(ret)) {
                 d->curr_write_pos--;
                 eb->active_count--;
                 d->revmap[*bp] = PAGE_UNDEF;
@@ -738,7 +738,7 @@ static int mtdswap_move_block(struct mtdswap_dev *d, unsigned int oldblock,
 retry:
         ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf);
 
-        if (ret < 0 && ret != -EUCLEAN) {
+        if (ret < 0 && !mtd_is_bitflip(ret)) {
                 oldeb = d->eb_data + oldblock / d->pages_per_eblk;
                 oldeb->flags |= EBLOCK_READERR;
 
@@ -931,7 +931,7 @@ static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d,
         struct mtd_oob_ops ops;
         int ret;
 
-        ops.mode = MTD_OOB_AUTO;
+        ops.mode = MTD_OPS_AUTO_OOB;
         ops.len = mtd->writesize;
         ops.ooblen = mtd->ecclayout->oobavail;
         ops.ooboffs = 0;
@@ -1016,7 +1016,7 @@ static int mtdswap_gc(struct mtdswap_dev *d, unsigned int background)
 
         if (ret == 0)
                 mtdswap_rb_add(d, eb, MTDSWAP_CLEAN);
-        else if (ret != -EIO && ret != -EBADMSG)
+        else if (ret != -EIO && !mtd_is_eccerr(ret))
                 mtdswap_rb_add(d, eb, MTDSWAP_DIRTY);
 
         return 0;
@@ -1164,7 +1164,7 @@ retry:
         ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, buf);
 
         d->mtd_read_count++;
-        if (ret == -EUCLEAN) {
+        if (mtd_is_bitflip(ret)) {
                 eb->flags |= EBLOCK_BITFLIP;
                 mtdswap_rb_add(d, eb, MTDSWAP_BITFLIP);
                 ret = 0;
@@ -1374,11 +1374,10 @@ static int mtdswap_init(struct mtdswap_dev *d, unsigned int eblocks,
                 goto revmap_fail;
 
         eblk_bytes = sizeof(struct swap_eb)*d->eblks;
-        d->eb_data = vmalloc(eblk_bytes);
+        d->eb_data = vzalloc(eblk_bytes);
         if (!d->eb_data)
                 goto eb_data_fail;
 
-        memset(d->eb_data, 0, eblk_bytes);
         for (i = 0; i < pages; i++)
                 d->page_data[i] = BLOCK_UNDEF;
 
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index dbfa0f7fb464..cce7b70824c3 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -83,16 +83,9 @@ config MTD_NAND_DENALI_SCRATCH_REG_ADDR
           scratch register here to enable this feature. On Intel Moorestown
           boards, the scratch register is at 0xFF108018.
 
-config MTD_NAND_EDB7312
-        tristate "Support for Cirrus Logic EBD7312 evaluation board"
-        depends on ARCH_EDB7312
-        help
-          This enables the driver for the Cirrus Logic EBD7312 evaluation
-          board to access the onboard NAND Flash.
-
 config MTD_NAND_H1900
         tristate "iPAQ H1900 flash"
-        depends on ARCH_PXA
+        depends on ARCH_PXA && BROKEN
         help
           This enables the driver for the iPAQ h1900 flash.
 
@@ -116,10 +109,11 @@ config MTD_NAND_AMS_DELTA
           Support for NAND flash on Amstrad E3 (Delta).
 
 config MTD_NAND_OMAP2
-        tristate "NAND Flash device on OMAP2 and OMAP3"
-        depends on ARM && (ARCH_OMAP2 || ARCH_OMAP3)
+        tristate "NAND Flash device on OMAP2, OMAP3 and OMAP4"
+        depends on ARM && (ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4)
         help
-          Support for NAND flash on Texas Instruments OMAP2 and OMAP3 platforms.
+          Support for NAND flash on Texas Instruments OMAP2, OMAP3 and OMAP4
+          platforms.
 
 config MTD_NAND_IDS
         tristate
@@ -423,6 +417,19 @@ config MTD_NAND_NANDSIM
           The simulator may simulate various NAND flash chips for the
           MTD nand layer.
 
+config MTD_NAND_GPMI_NAND
+        bool "GPMI NAND Flash Controller driver"
+        depends on MTD_NAND && (SOC_IMX23 || SOC_IMX28)
+        select MTD_PARTITIONS
+        select MTD_CMDLINE_PARTS
+        help
+         Enables NAND Flash support for IMX23 or IMX28.
+         The GPMI controller is very powerful, with the help of BCH
+         module, it can do the hardware ECC. The GPMI supports several
+         NAND flashs at the same time. The GPMI may conflicts with other
+         block, such as SD card. So pay attention to it when you enable
+         the GPMI.
+
 config MTD_NAND_PLATFORM
         tristate "Support for generic platform NAND driver"
         help
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 5745d831168e..618f4ba23699 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -13,7 +13,6 @@ obj-$(CONFIG_MTD_NAND_SPIA)		+= spia.o
 obj-$(CONFIG_MTD_NAND_AMS_DELTA)        += ams-delta.o
 obj-$(CONFIG_MTD_NAND_AUTCPU12)         += autcpu12.o
 obj-$(CONFIG_MTD_NAND_DENALI)           += denali.o
-obj-$(CONFIG_MTD_NAND_EDB7312)          += edb7312.o
 obj-$(CONFIG_MTD_NAND_AU1550)           += au1550nd.o
 obj-$(CONFIG_MTD_NAND_BF5XX)            += bf5xx_nand.o
 obj-$(CONFIG_MTD_NAND_PPCHAMELEONEVB)   += ppchameleonevb.o
@@ -49,5 +48,6 @@ obj-$(CONFIG_MTD_NAND_BCM_UMI)		+= bcm_umi_nand.o nand_bcm_umi.o
 obj-$(CONFIG_MTD_NAND_MPC5121_NFC)      += mpc5121_nfc.o
 obj-$(CONFIG_MTD_NAND_RICOH)            += r852.o
 obj-$(CONFIG_MTD_NAND_JZ4740)           += jz4740_nand.o
+obj-$(CONFIG_MTD_NAND_GPMI_NAND)        += gpmi-nand/
 
 nand-objs := nand_base.o nand_bbt.o
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 55da20ccc7a8..23e5d77c39fc 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -161,37 +161,6 @@ static int atmel_nand_device_ready(struct mtd_info *mtd)
                 !!host->board->rdy_pin_active_low;
 }
 
-/*
- * Minimal-overhead PIO for data access.
- */
-static void atmel_read_buf8(struct mtd_info *mtd, u8 *buf, int len)
-{
-        struct nand_chip        *nand_chip = mtd->priv;
-
-        __raw_readsb(nand_chip->IO_ADDR_R, buf, len);
-}
-
-static void atmel_read_buf16(struct mtd_info *mtd, u8 *buf, int len)
-{
-        struct nand_chip        *nand_chip = mtd->priv;
-
-        __raw_readsw(nand_chip->IO_ADDR_R, buf, len / 2);
-}
-
-static void atmel_write_buf8(struct mtd_info *mtd, const u8 *buf, int len)
-{
-        struct nand_chip        *nand_chip = mtd->priv;
-
-        __raw_writesb(nand_chip->IO_ADDR_W, buf, len);
-}
-
-static void atmel_write_buf16(struct mtd_info *mtd, const u8 *buf, int len)
-{
-        struct nand_chip        *nand_chip = mtd->priv;
-
-        __raw_writesw(nand_chip->IO_ADDR_W, buf, len / 2);
-}
-
 static void dma_complete_func(void *completion)
 {
         complete(completion);
@@ -266,33 +235,27 @@ err_buf:
 static void atmel_read_buf(struct mtd_info *mtd, u8 *buf, int len)
 {
         struct nand_chip *chip = mtd->priv;
-        struct atmel_nand_host *host = chip->priv;
 
         if (use_dma && len > mtd->oobsize)
                 /* only use DMA for bigger than oob size: better performances */
                 if (atmel_nand_dma_op(mtd, buf, len, 1) == 0)
                         return;
 
-        if (host->board->bus_width_16)
-                atmel_read_buf16(mtd, buf, len);
-        else
-                atmel_read_buf8(mtd, buf, len);
+        /* if no DMA operation possible, use PIO */
+        memcpy_fromio(buf, chip->IO_ADDR_R, len);
 }
 
 static void atmel_write_buf(struct mtd_info *mtd, const u8 *buf, int len)
 {
         struct nand_chip *chip = mtd->priv;
-        struct atmel_nand_host *host = chip->priv;
 
         if (use_dma && len > mtd->oobsize)
                 /* only use DMA for bigger than oob size: better performances */
                 if (atmel_nand_dma_op(mtd, (void *)buf, len, 0) == 0)
                         return;
 
-        if (host->board->bus_width_16)
-                atmel_write_buf16(mtd, buf, len);
-        else
-                atmel_write_buf8(mtd, buf, len);
+        /* if no DMA operation possible, use PIO */
+        memcpy_toio(chip->IO_ADDR_W, buf, len);
 }
 
 /*
@@ -481,10 +444,6 @@ static void atmel_nand_hwctl(struct mtd_info *mtd, int mode)
         }
 }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-static const char *part_probes[] = { "cmdlinepart", NULL };
-#endif
-
 /*
  * Probe for the NAND device.
  */
@@ -496,8 +455,6 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
         struct resource *regs;
         struct resource *mem;
         int res;
-        struct mtd_partition *partitions = NULL;
-        int num_partitions = 0;
 
         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         if (!mem) {
@@ -583,7 +540,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 
         if (on_flash_bbt) {
                 printk(KERN_INFO "atmel_nand: Use On Flash BBT\n");
-                nand_chip->options |= NAND_USE_FLASH_BBT;
+                nand_chip->bbt_options |= NAND_BBT_USE_FLASH;
         }
 
         if (!cpu_has_dma())
@@ -594,7 +551,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 
                 dma_cap_zero(mask);
                 dma_cap_set(DMA_MEMCPY, mask);
-                host->dma_chan = dma_request_channel(mask, 0, NULL);
+                host->dma_chan = dma_request_channel(mask, NULL, NULL);
                 if (!host->dma_chan) {
                         dev_err(host->dev, "Failed to request DMA channel\n");
                         use_dma = 0;
@@ -655,27 +612,12 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
                 goto err_scan_tail;
         }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
         mtd->name = "atmel_nand";
-        num_partitions = parse_mtd_partitions(mtd, part_probes,
-                                              &partitions, 0);
-#endif
-        if (num_partitions <= 0 && host->board->partition_info)
-                partitions = host->board->partition_info(mtd->size,
-                                                         &num_partitions);
-
-        if ((!partitions) || (num_partitions == 0)) {
-                printk(KERN_ERR "atmel_nand: No partitions defined, or unsupported device.\n");
-                res = -ENXIO;
-                goto err_no_partitions;
-        }
-
-        res = mtd_device_register(mtd, partitions, num_partitions);
+        res = mtd_device_parse_register(mtd, NULL, 0,
+                        host->board->parts, host->board->num_parts);
         if (!res)
                 return res;
 
-err_no_partitions:
-        nand_release(mtd);
 err_scan_tail:
 err_scan_ident:
 err_no_card:
diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c
index fa5736b9286c..7dd3700f2303 100644
--- a/drivers/mtd/nand/au1550nd.c
+++ b/drivers/mtd/nand/au1550nd.c
@@ -52,7 +52,7 @@ static const struct mtd_partition partition_info[] = {
  * au_read_byte -  read one byte from the chip
  * @mtd:        MTD device structure
  *
- *  read function for 8bit buswith
+ * read function for 8bit buswidth
  */
 static u_char au_read_byte(struct mtd_info *mtd)
 {
@@ -67,7 +67,7 @@ static u_char au_read_byte(struct mtd_info *mtd)
  * @mtd:        MTD device structure
  * @byte:       pointer to data byte to write
  *
- *  write function for 8it buswith
+ * write function for 8it buswidth
  */
 static void au_write_byte(struct mtd_info *mtd, u_char byte)
 {
@@ -77,11 +77,10 @@ static void au_write_byte(struct mtd_info *mtd, u_char byte)
 }
 
 /**
- * au_read_byte16 -  read one byte endianess aware from the chip
+ * au_read_byte16 -  read one byte endianness aware from the chip
  * @mtd:        MTD device structure
  *
- *  read function for 16bit buswith with
- * endianess conversion
+ * read function for 16bit buswidth with endianness conversion
  */
 static u_char au_read_byte16(struct mtd_info *mtd)
 {
@@ -92,12 +91,11 @@ static u_char au_read_byte16(struct mtd_info *mtd)
 }
 
 /**
- * au_write_byte16 -  write one byte endianess aware to the chip
+ * au_write_byte16 -  write one byte endianness aware to the chip
  * @mtd:        MTD device structure
  * @byte:       pointer to data byte to write
  *
- *  write function for 16bit buswith with
- * endianess conversion
+ * write function for 16bit buswidth with endianness conversion
  */
 static void au_write_byte16(struct mtd_info *mtd, u_char byte)
 {
@@ -110,8 +108,7 @@ static void au_write_byte16(struct mtd_info *mtd, u_char byte)
  * au_read_word -  read one word from the chip
  * @mtd:        MTD device structure
  *
- *  read function for 16bit buswith without
- * endianess conversion
+ * read function for 16bit buswidth without endianness conversion
  */
 static u16 au_read_word(struct mtd_info *mtd)
 {
@@ -127,7 +124,7 @@ static u16 au_read_word(struct mtd_info *mtd)
  * @buf:        data buffer
  * @len:        number of bytes to write
  *
- *  write function for 8bit buswith
+ * write function for 8bit buswidth
  */
 static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
@@ -146,7 +143,7 @@ static void au_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
  * @buf:        buffer to store date
  * @len:        number of bytes to read
  *
- *  read function for 8bit buswith
+ * read function for 8bit buswidth
  */
 static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
 {
@@ -165,7 +162,7 @@ static void au_read_buf(struct mtd_info *mtd, u_char *buf, int len)
  * @buf:        buffer containing the data to compare
  * @len:        number of bytes to compare
  *
- *  verify function for 8bit buswith
+ * verify function for 8bit buswidth
  */
 static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
 {
@@ -187,7 +184,7 @@ static int au_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
  * @buf:        data buffer
  * @len:        number of bytes to write
  *
- *  write function for 16bit buswith
+ * write function for 16bit buswidth
  */
 static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 {
@@ -209,7 +206,7 @@ static void au_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
  * @buf:        buffer to store date
  * @len:        number of bytes to read
  *
- *  read function for 16bit buswith
+ * read function for 16bit buswidth
  */
 static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
 {
@@ -230,7 +227,7 @@ static void au_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
  * @buf:        buffer containing the data to compare
  * @len:        number of bytes to compare
  *
- *  verify function for 16bit buswith
+ * verify function for 16bit buswidth
  */
 static int au_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
 {
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
index eddc9a224985..2e42ec2e8ff4 100644
--- a/drivers/mtd/nand/autcpu12.c
+++ b/drivers/mtd/nand/autcpu12.c
@@ -172,9 +172,9 @@ static int __init autcpu12_init(void)
 
         /* Enable the following for a flash based bad block table */
         /*
-           this->options = NAND_USE_FLASH_BBT;
+           this->bbt_options = NAND_BBT_USE_FLASH;
          */
-        this->options = NAND_USE_FLASH_BBT;
+        this->bbt_options = NAND_BBT_USE_FLASH;
 
         /* Scan to find existence of the device */
         if (nand_scan(autcpu12_mtd, 1)) {
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 8c569e454dc5..46b58d672847 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -52,8 +52,6 @@
 static const __devinitconst char gBanner[] = KERN_INFO \
         "BCM UMI MTD NAND Driver: 1.00\n";
 
-const char *part_probes[] = { "cmdlinepart", NULL };
-
 #if NAND_ECC_BCH
 static uint8_t scan_ff_pattern[] = { 0xff };
 
@@ -376,16 +374,18 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-        if (!r)
-                return -ENXIO;
+        if (!r) {
+                err = -ENXIO;
+                goto out_free;
+        }
 
         /* map physical address */
         bcm_umi_io_base = ioremap(r->start, resource_size(r));
 
         if (!bcm_umi_io_base) {
                 printk(KERN_ERR "ioremap to access BCM UMI NAND chip failed\n");
-                kfree(board_mtd);
-                return -EIO;
+                err = -EIO;
+                goto out_free;
         }
 
         /* Get pointer to private data */
@@ -401,9 +401,8 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
         /* Initialize the NAND hardware.  */
         if (bcm_umi_nand_inithw() < 0) {
                 printk(KERN_ERR "BCM UMI NAND chip could not be initialized\n");
-                iounmap(bcm_umi_io_base);
-                kfree(board_mtd);
-                return -EIO;
+                err = -EIO;
+                goto out_unmap;
         }
 
         /* Set address of NAND IO lines */
@@ -436,7 +435,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
 #if USE_DMA
         err = nand_dma_init();
         if (err != 0)
-                return err;
+                goto out_unmap;
 #endif
 
         /* Figure out the size of the device that we have.
@@ -447,9 +446,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
         err = nand_scan_ident(board_mtd, 1, NULL);
         if (err) {
                 printk(KERN_ERR "nand_scan failed: %d\n", err);
-                iounmap(bcm_umi_io_base);
-                kfree(board_mtd);
-                return err;
+                goto out_unmap;
         }
 
         /* Now that we know the nand size, we can setup the ECC layout */
@@ -468,13 +465,14 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
                 {
                         printk(KERN_ERR "NAND - Unrecognized pagesize: %d\n",
                                          board_mtd->writesize);
-                        return -EINVAL;
+                        err = -EINVAL;
+                        goto out_unmap;
                 }
         }
 
 #if NAND_ECC_BCH
         if (board_mtd->writesize > 512) {
-                if (this->options & NAND_USE_FLASH_BBT)
+                if (this->bbt_options & NAND_BBT_USE_FLASH)
                         largepage_bbt.options = NAND_BBT_SCAN2NDPAGE;
                 this->badblock_pattern = &largepage_bbt;
         }
@@ -485,33 +483,20 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
         err = nand_scan_tail(board_mtd);
         if (err) {
                 printk(KERN_ERR "nand_scan failed: %d\n", err);
-                iounmap(bcm_umi_io_base);
-                kfree(board_mtd);
-                return err;
+                goto out_unmap;
         }
 
         /* Register the partitions */
-        {
-                int nr_partitions;
-                struct mtd_partition *partition_info;
-
-                board_mtd->name = "bcm_umi-nand";
-                nr_partitions =
-                    parse_mtd_partitions(board_mtd, part_probes,
-                                         &partition_info, 0);
-
-                if (nr_partitions <= 0) {
-                        printk(KERN_ERR "BCM UMI NAND: Too few partitions - %d\n",
-                               nr_partitions);
-                        iounmap(bcm_umi_io_base);
-                        kfree(board_mtd);
-                        return -EIO;
-                }
-                mtd_device_register(board_mtd, partition_info, nr_partitions);
-        }
+        board_mtd->name = "bcm_umi-nand";
+        mtd_device_parse_register(board_mtd, NULL, 0, NULL, 0);
 
         /* Return happy */
         return 0;
+out_unmap:
+        iounmap(bcm_umi_io_base);
+out_free:
+        kfree(board_mtd);
+        return err;
 }
 
 static int bcm_umi_nand_remove(struct platform_device *pdev)
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 7c8df837d3b8..72d3f23490c5 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -58,7 +58,6 @@
 
 struct cafe_priv {
         struct nand_chip nand;
-        struct mtd_partition *parts;
         struct pci_dev *pdev;
         void __iomem *mmio;
         struct rs_control *rs;
@@ -372,7 +371,7 @@ static int cafe_nand_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
         return 1;
 }
 /**
- * cafe_nand_read_page_syndrome - {REPLACABLE] hardware ecc syndrom based page read
+ * cafe_nand_read_page_syndrome - [REPLACEABLE] hardware ecc syndrome based page read
  * @mtd:        mtd info structure
  * @chip:       nand chip info structure
  * @buf:        buffer to store read data
@@ -631,8 +630,6 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
         struct cafe_priv *cafe;
         uint32_t ctrl;
         int err = 0;
-        struct mtd_partition *parts;
-        int nr_parts;
 
         /* Very old versions shared the same PCI ident for all three
            functions on the chip. Verify the class too... */
@@ -687,7 +684,8 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
         cafe->nand.chip_delay = 0;
 
         /* Enable the following for a flash based bad block table */
-        cafe->nand.options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR | NAND_OWN_BUFFERS;
+        cafe->nand.bbt_options = NAND_BBT_USE_FLASH;
+        cafe->nand.options = NAND_NO_AUTOINCR | NAND_OWN_BUFFERS;
 
         if (skipbbt) {
                 cafe->nand.options |= NAND_SKIP_BBTSCAN;
@@ -800,18 +798,9 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
 
         pci_set_drvdata(pdev, mtd);
 
-        /* We register the whole device first, separate from the partitions */
-        mtd_device_register(mtd, NULL, 0);
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
         mtd->name = "cafe_nand";
-#endif
-        nr_parts = parse_mtd_partitions(mtd, part_probes, &parts, 0);
-        if (nr_parts > 0) {
-                cafe->parts = parts;
-                dev_info(&cafe->pdev->dev, "%d partitions found\n", nr_parts);
-                mtd_device_register(mtd, parts, nr_parts);
-        }
+        mtd_device_parse_register(mtd, part_probes, 0, NULL, 0);
+
         goto out;
 
  out_irq:
diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c
index be33b0f4634d..737ef9a04fdb 100644
--- a/drivers/mtd/nand/cmx270_nand.c
+++ b/drivers/mtd/nand/cmx270_nand.c
@@ -51,8 +51,6 @@ static struct mtd_partition partition_info[] = {
 };
 #define NUM_PARTITIONS (ARRAY_SIZE(partition_info))
 
-const char *part_probes[] = { "cmdlinepart", NULL };
-
 static u_char cmx270_read_byte(struct mtd_info *mtd)
 {
         struct nand_chip *this = mtd->priv;
@@ -152,9 +150,6 @@ static int cmx270_device_ready(struct mtd_info *mtd)
 static int __init cmx270_init(void)
 {
         struct nand_chip *this;
-        const char *part_type;
-        struct mtd_partition *mtd_parts;
-        int mtd_parts_nb = 0;
         int ret;
 
         if (!(machine_is_armcore() && cpu_is_pxa27x()))
@@ -223,23 +218,9 @@ static int __init cmx270_init(void)
                 goto err_scan;
         }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        mtd_parts_nb = parse_mtd_partitions(cmx270_nand_mtd, part_probes,
-                                            &mtd_parts, 0);
-        if (mtd_parts_nb > 0)
-                part_type = "command line";
-        else
-                mtd_parts_nb = 0;
-#endif
-        if (!mtd_parts_nb) {
-                mtd_parts = partition_info;
-                mtd_parts_nb = NUM_PARTITIONS;
-                part_type = "static";
-        }
-
         /* Register the partitions */
-        pr_notice("Using %s partition definition\n", part_type);
-        ret = mtd_device_register(cmx270_nand_mtd, mtd_parts, mtd_parts_nb);
+        ret = mtd_device_parse_register(cmx270_nand_mtd, NULL, 0,
+                                        partition_info, NUM_PARTITIONS);
         if (ret)
                 goto err_scan;
 
diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c
index f59ad1f2d5db..414afa793563 100644
--- a/drivers/mtd/nand/cs553x_nand.c
+++ b/drivers/mtd/nand/cs553x_nand.c
@@ -239,7 +239,8 @@ static int __init cs553x_init_one(int cs, int mmio, unsigned long adr)
         this->ecc.correct  = nand_correct_data;
 
         /* Enable the following for a flash based bad block table */
-        this->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR;
+        this->bbt_options = NAND_BBT_USE_FLASH;
+        this->options = NAND_NO_AUTOINCR;
 
         /* Scan to find existence of the device */
         if (nand_scan(new_mtd, 1)) {
@@ -277,15 +278,11 @@ static int is_geode(void)
         return 0;
 }
 
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
 static int __init cs553x_init(void)
 {
         int err = -ENXIO;
         int i;
         uint64_t val;
-        int mtd_parts_nb = 0;
-        struct mtd_partition *mtd_parts = NULL;
 
         /* If the CPU isn't a Geode GX or LX, abort */
         if (!is_geode())
@@ -315,13 +312,9 @@ static int __init cs553x_init(void)
            do mtdconcat etc. if we want to. */
         for (i = 0; i < NR_CS553X_CONTROLLERS; i++) {
                 if (cs553x_mtd[i]) {
-
                         /* If any devices registered, return success. Else the last error. */
-                        mtd_parts_nb = parse_mtd_partitions(cs553x_mtd[i], part_probes, &mtd_parts, 0);
-                        if (mtd_parts_nb > 0)
-                                printk(KERN_NOTICE "Using command line partition definition\n");
-                        mtd_device_register(cs553x_mtd[i], mtd_parts,
-                                            mtd_parts_nb);
+                        mtd_device_parse_register(cs553x_mtd[i], NULL, 0,
+                                                  NULL, 0);
                         err = 0;
                 }
         }
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index 1f34951ae1a7..c153e1f77f90 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -57,7 +57,6 @@ struct davinci_nand_info {
 
         struct device           *dev;
         struct clk              *clk;
-        bool                    partitioned;
 
         bool                    is_readmode;
 
@@ -530,8 +529,6 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
         int                             ret;
         uint32_t                        val;
         nand_ecc_modes_t                ecc_mode;
-        struct mtd_partition            *mtd_parts = NULL;
-        int                             mtd_parts_nb = 0;
 
         /* insist on board-specific configuration */
         if (!pdata)
@@ -581,7 +578,9 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
         info->chip.chip_delay   = 0;
         info->chip.select_chip  = nand_davinci_select_chip;
 
-        /* options such as NAND_USE_FLASH_BBT or 16-bit widths */
+        /* options such as NAND_BBT_USE_FLASH */
+        info->chip.bbt_options  = pdata->bbt_options;
+        /* options such as 16-bit widths */
         info->chip.options      = pdata->options;
         info->chip.bbt_td       = pdata->bbt_td;
         info->chip.bbt_md       = pdata->bbt_md;
@@ -751,33 +750,8 @@ syndrome_done:
         if (ret < 0)
                 goto err_scan;
 
-        if (mtd_has_cmdlinepart()) {
-                static const char *probes[] __initconst = {
-                        "cmdlinepart", NULL
-                };
-
-                mtd_parts_nb = parse_mtd_partitions(&info->mtd, probes,
-                                                    &mtd_parts, 0);
-        }
-
-        if (mtd_parts_nb <= 0) {
-                mtd_parts = pdata->parts;
-                mtd_parts_nb = pdata->nr_parts;
-        }
-
-        /* Register any partitions */
-        if (mtd_parts_nb > 0) {
-                ret = mtd_device_register(&info->mtd, mtd_parts,
-                                          mtd_parts_nb);
-                if (ret == 0)
-                        info->partitioned = true;
-        }
-
-        /* If there's no partition info, just package the whole chip
-         * as a single MTD device.
-         */
-        if (!info->partitioned)
-                ret = mtd_device_register(&info->mtd, NULL, 0) ? -ENODEV : 0;
+        ret = mtd_device_parse_register(&info->mtd, NULL, 0,
+                        pdata->parts, pdata->nr_parts);
 
         if (ret < 0)
                 goto err_scan;
@@ -816,9 +790,6 @@ err_nomem:
 static int __exit nand_davinci_remove(struct platform_device *pdev)
 {
         struct davinci_nand_info *info = platform_get_drvdata(pdev);
-        int status;
-
-        status = mtd_device_unregister(&info->mtd);
 
         spin_lock_irq(&davinci_nand_lock);
         if (info->chip.ecc.mode == NAND_ECC_HW_SYNDROME)
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index d5276218945f..3984d488f9ab 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1346,6 +1346,7 @@ static void denali_hw_init(struct denali_nand_info *denali)
          * */
         denali->bbtskipbytes = ioread32(denali->flash_reg +
                                                 SPARE_AREA_SKIP_BYTES);
+        detect_max_banks(denali);
         denali_nand_reset(denali);
         iowrite32(0x0F, denali->flash_reg + RB_PIN_ENABLED);
         iowrite32(CHIP_EN_DONT_CARE__FLAG,
@@ -1356,7 +1357,6 @@ static void denali_hw_init(struct denali_nand_info *denali)
         /* Should set value for these registers when init */
         iowrite32(0, denali->flash_reg + TWO_ROW_ADDR_CYCLES);
         iowrite32(1, denali->flash_reg + ECC_ENABLE);
-        detect_max_banks(denali);
         denali_nand_timing_set(denali);
         denali_irq_init(denali);
 }
@@ -1577,7 +1577,8 @@ static int denali_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
         denali->nand.bbt_md = &bbt_mirror_descr;
 
         /* skip the scan for now until we have OOB read and write support */
-        denali->nand.options |= NAND_USE_FLASH_BBT | NAND_SKIP_BBTSCAN;
+        denali->nand.bbt_options |= NAND_BBT_USE_FLASH;
+        denali->nand.options |= NAND_SKIP_BBTSCAN;
         denali->nand.ecc.mode = NAND_ECC_HW_SYNDROME;
 
         /* Denali Controller only support 15bit and 8bit ECC in MRST,
@@ -1676,7 +1677,6 @@ static void denali_pci_remove(struct pci_dev *dev)
         struct denali_nand_info *denali = pci_get_drvdata(dev);
 
         nand_release(&denali->mtd);
-        mtd_device_unregister(&denali->mtd);
 
         denali_irq_cleanup(dev->irq, denali);
 
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index e1b84cb90f0d..5780dbab6113 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -133,7 +133,7 @@ static struct rs_control *rs_decoder;
 
 /*
  * The HW decoder in the DoC ASIC's provides us a error syndrome,
- * which we must convert to a standard syndrom usable by the generic
+ * which we must convert to a standard syndrome usable by the generic
  * Reed-Solomon library code.
  *
  * Fabrice Bellard figured this out in the old docecc code. I added
@@ -154,7 +154,7 @@ static int doc_ecc_decode(struct rs_control *rs, uint8_t *data, uint8_t *ecc)
         ds[3] = ((ecc[3] & 0xc0) >> 6) | ((ecc[0] & 0xff) << 2);
         parity = ecc[1];
 
-        /* Initialize the syndrom buffer */
+        /* Initialize the syndrome buffer */
         for (i = 0; i < NROOTS; i++)
                 s[i] = ds[0];
         /*
@@ -1032,7 +1032,7 @@ static int doc200x_correct_data(struct mtd_info *mtd, u_char *dat,
                 WriteDOC(DOC_ECC_DIS, docptr, Mplus_ECCConf);
         else
                 WriteDOC(DOC_ECC_DIS, docptr, ECCConf);
-        if (no_ecc_failures && (ret == -EBADMSG)) {
+        if (no_ecc_failures && mtd_is_eccerr(ret)) {
                 printk(KERN_ERR "suppressing ECC failure\n");
                 ret = 0;
         }
@@ -1653,7 +1653,7 @@ static int __init doc_probe(unsigned long physadr)
         nand->ecc.mode          = NAND_ECC_HW_SYNDROME;
         nand->ecc.size          = 512;
         nand->ecc.bytes         = 6;
-        nand->options           = NAND_USE_FLASH_BBT;
+        nand->bbt_options       = NAND_BBT_USE_FLASH;
 
         doc->physadr            = physadr;
         doc->virtadr            = virtadr;
diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c
deleted file mode 100644
index 8400d0f6dada..000000000000
--- a/drivers/mtd/nand/edb7312.c
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- *  drivers/mtd/nand/edb7312.c
- *
- *  Copyright (C) 2002 Marius Gröger (mag@sysgo.de)
- *
- *  Derived from drivers/mtd/nand/autcpu12.c
- *       Copyright (c) 2001 Thomas Gleixner (gleixner@autronix.de)
- *
- * 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.
- *
- *  Overview:
- *   This is a device driver for the NAND flash device found on the
- *   CLEP7312 board which utilizes the Toshiba TC58V64AFT part. This is
- *   a 64Mibit (8MiB x 8 bits) NAND flash device.
- */
-
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <mach/hardware.h>      /* for CLPS7111_VIRT_BASE */
-#include <asm/sizes.h>
-#include <asm/hardware/clps7111.h>
-
-/*
- * MTD structure for EDB7312 board
- */
-static struct mtd_info *ep7312_mtd = NULL;
-
-/*
- * Values specific to the EDB7312 board (used with EP7312 processor)
- */
-#define EP7312_FIO_PBASE 0x10000000     /* Phys address of flash */
-#define EP7312_PXDR     0x0001  /*
-                                 * IO offset to Port B data register
-                                 * where the CLE, ALE and NCE pins
-                                 * are wired to.
-                                 */
-#define EP7312_PXDDR    0x0041  /*
-                                 * IO offset to Port B data direction
-                                 * register so we can control the IO
-                                 * lines.
-                                 */
-
-/*
- * Module stuff
- */
-
-static unsigned long ep7312_fio_pbase = EP7312_FIO_PBASE;
-static void __iomem *ep7312_pxdr = (void __iomem *)EP7312_PXDR;
-static void __iomem *ep7312_pxddr = (void __iomem *)EP7312_PXDDR;
-
-/*
- * Define static partitions for flash device
- */
-static struct mtd_partition partition_info[] = {
-        {.name = "EP7312 Nand Flash",
-         .offset = 0,
-         .size = 8 * 1024 * 1024}
-};
-
-#define NUM_PARTITIONS 1
-
-/*
- *      hardware specific access to control-lines
- *
- *      NAND_NCE: bit 0 -> bit 6 (bit 7 = 1)
- *      NAND_CLE: bit 1 -> bit 4
- *      NAND_ALE: bit 2 -> bit 5
- */
-static void ep7312_hwcontrol(struct mtd_info *mtd, int cmd, unsigned int ctrl)
-{
-        struct nand_chip *chip = mtd->priv;
-
-        if (ctrl & NAND_CTRL_CHANGE) {
-                unsigned char bits = 0x80;
-
-                bits |= (ctrl & (NAND_CLE | NAND_ALE)) << 3;
-                bits |= (ctrl & NAND_NCE) ? 0x00 : 0x40;
-
-                clps_writeb((clps_readb(ep7312_pxdr)  & 0xF0) | bits,
-                            ep7312_pxdr);
-        }
-        if (cmd != NAND_CMD_NONE)
-                writeb(cmd, chip->IO_ADDR_W);
-}
-
-/*
- *      read device ready pin
- */
-static int ep7312_device_ready(struct mtd_info *mtd)
-{
-        return 1;
-}
-
-const char *part_probes[] = { "cmdlinepart", NULL };
-
-/*
- * Main initialization routine
- */
-static int __init ep7312_init(void)
-{
-        struct nand_chip *this;
-        const char *part_type = 0;
-        int mtd_parts_nb = 0;
-        struct mtd_partition *mtd_parts = 0;
-        void __iomem *ep7312_fio_base;
-
-        /* Allocate memory for MTD device structure and private data */
-        ep7312_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
-        if (!ep7312_mtd) {
-                printk("Unable to allocate EDB7312 NAND MTD device structure.\n");
-                return -ENOMEM;
-        }
-
-        /* map physical address */
-        ep7312_fio_base = ioremap(ep7312_fio_pbase, SZ_1K);
-        if (!ep7312_fio_base) {
-                printk("ioremap EDB7312 NAND flash failed\n");
-                kfree(ep7312_mtd);
-                return -EIO;
-        }
-
-        /* Get pointer to private data */
-        this = (struct nand_chip *)(&ep7312_mtd[1]);
-
-        /* Initialize structures */
-        memset(ep7312_mtd, 0, sizeof(struct mtd_info));
-        memset(this, 0, sizeof(struct nand_chip));
-
-        /* Link the private data with the MTD structure */
-        ep7312_mtd->priv = this;
-        ep7312_mtd->owner = THIS_MODULE;
-
-        /*
-         * Set GPIO Port B control register so that the pins are configured
-         * to be outputs for controlling the NAND flash.
-         */
-        clps_writeb(0xf0, ep7312_pxddr);
-
-        /* insert callbacks */
-        this->IO_ADDR_R = ep7312_fio_base;
-        this->IO_ADDR_W = ep7312_fio_base;
-        this->cmd_ctrl = ep7312_hwcontrol;
-        this->dev_ready = ep7312_device_ready;
-        /* 15 us command delay time */
-        this->chip_delay = 15;
-
-        /* Scan to find existence of the device */
-        if (nand_scan(ep7312_mtd, 1)) {
-                iounmap((void *)ep7312_fio_base);
-                kfree(ep7312_mtd);
-                return -ENXIO;
-        }
-        ep7312_mtd->name = "edb7312-nand";
-        mtd_parts_nb = parse_mtd_partitions(ep7312_mtd, part_probes, &mtd_parts, 0);
-        if (mtd_parts_nb > 0)
-                part_type = "command line";
-        else
-                mtd_parts_nb = 0;
-        if (mtd_parts_nb == 0) {
-                mtd_parts = partition_info;
-                mtd_parts_nb = NUM_PARTITIONS;
-                part_type = "static";
-        }
-
-        /* Register the partitions */
-        printk(KERN_NOTICE "Using %s partition definition\n", part_type);
-        mtd_device_register(ep7312_mtd, mtd_parts, mtd_parts_nb);
-
-        /* Return happy */
-        return 0;
-}
-
-module_init(ep7312_init);
-
-/*
- * Clean up routine
- */
-static void __exit ep7312_cleanup(void)
-{
-        struct nand_chip *this = (struct nand_chip *)&ep7312_mtd[1];
-
-        /* Release resources, unregister device */
-        nand_release(ap7312_mtd);
-
-        /* Release io resource */
-        iounmap(this->IO_ADDR_R);
-
-        /* Free the MTD device structure */
-        kfree(ep7312_mtd);
-}
-
-module_exit(ep7312_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Marius Groeger <mag@sysgo.de>");
-MODULE_DESCRIPTION("MTD map driver for Cogent EDB7312 board");
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 33d8aad8bba5..eedd8ee2c9ac 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -75,7 +75,6 @@ struct fsl_elbc_fcm_ctrl {
         unsigned int use_mdr;    /* Non zero if the MDR is to be set      */
         unsigned int oob;        /* Non zero if operating on OOB data     */
         unsigned int counter;    /* counter for the initializations       */
-        char *oob_poi;           /* Place to write ECC after read back    */
 };
 
 /* These map to the positions used by the FCM hardware ECC generator */
@@ -244,6 +243,25 @@ static int fsl_elbc_run_command(struct mtd_info *mtd)
                 return -EIO;
         }
 
+        if (chip->ecc.mode != NAND_ECC_HW)
+                return 0;
+
+        if (elbc_fcm_ctrl->read_bytes == mtd->writesize + mtd->oobsize) {
+                uint32_t lteccr = in_be32(&lbc->lteccr);
+                /*
+                 * if command was a full page read and the ELBC
+                 * has the LTECCR register, then bits 12-15 (ppc order) of
+                 * LTECCR indicates which 512 byte sub-pages had fixed errors.
+                 * bits 28-31 are uncorrectable errors, marked elsewhere.
+                 * for small page nand only 1 bit is used.
+                 * if the ELBC doesn't have the lteccr register it reads 0
+                 */
+                if (lteccr & 0x000F000F)
+                        out_be32(&lbc->lteccr, 0x000F000F); /* clear lteccr */
+                if (lteccr & 0x000F0000)
+                        mtd->ecc_stats.corrected++;
+        }
+
         return 0;
 }
 
@@ -435,7 +453,6 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 
         /* PAGEPROG reuses all of the setup from SEQIN and adds the length */
         case NAND_CMD_PAGEPROG: {
-                int full_page;
                 dev_vdbg(priv->dev,
                          "fsl_elbc_cmdfunc: NAND_CMD_PAGEPROG "
                          "writing %d bytes.\n", elbc_fcm_ctrl->index);
@@ -445,34 +462,12 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
                  * write so the HW generates the ECC.
                  */
                 if (elbc_fcm_ctrl->oob || elbc_fcm_ctrl->column != 0 ||
-                    elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize) {
+                    elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize)
                         out_be32(&lbc->fbcr, elbc_fcm_ctrl->index);
-                        full_page = 0;
-                } else {
+                else
                         out_be32(&lbc->fbcr, 0);
-                        full_page = 1;
-                }
 
                 fsl_elbc_run_command(mtd);
-
-                /* Read back the page in order to fill in the ECC for the
-                 * caller.  Is this really needed?
-                 */
-                if (full_page && elbc_fcm_ctrl->oob_poi) {
-                        out_be32(&lbc->fbcr, 3);
-                        set_addr(mtd, 6, page_addr, 1);
-
-                        elbc_fcm_ctrl->read_bytes = mtd->writesize + 9;
-
-                        fsl_elbc_do_read(chip, 1);
-                        fsl_elbc_run_command(mtd);
-
-                        memcpy_fromio(elbc_fcm_ctrl->oob_poi + 6,
-                                &elbc_fcm_ctrl->addr[elbc_fcm_ctrl->index], 3);
-                        elbc_fcm_ctrl->index += 3;
-                }
-
-                elbc_fcm_ctrl->oob_poi = NULL;
                 return;
         }
 
@@ -752,13 +747,8 @@ static void fsl_elbc_write_page(struct mtd_info *mtd,
                                 struct nand_chip *chip,
                                 const uint8_t *buf)
 {
-        struct fsl_elbc_mtd *priv = chip->priv;
-        struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand;
-
         fsl_elbc_write_buf(mtd, buf, mtd->writesize);
         fsl_elbc_write_buf(mtd, chip->oob_poi, mtd->oobsize);
-
-        elbc_fcm_ctrl->oob_poi = chip->oob_poi;
 }
 
 static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
@@ -791,8 +781,8 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
         chip->bbt_md = &bbt_mirror_descr;
 
         /* set up nand options */
-        chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR |
-                        NAND_USE_FLASH_BBT;
+        chip->options = NAND_NO_READRDY | NAND_NO_AUTOINCR;
+        chip->bbt_options = NAND_BBT_USE_FLASH;
 
         chip->controller = &elbc_fcm_ctrl->controller;
         chip->priv = priv;
@@ -829,7 +819,6 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv)
 
         elbc_fcm_ctrl->chips[priv->bank] = NULL;
         kfree(priv);
-        kfree(elbc_fcm_ctrl);
         return 0;
 }
 
@@ -842,13 +831,14 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev)
         struct resource res;
         struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl;
         static const char *part_probe_types[]
-                = { "cmdlinepart", "RedBoot", NULL };
-        struct mtd_partition *parts;
+                = { "cmdlinepart", "RedBoot", "ofpart", NULL };
         int ret;
         int bank;
         struct device *dev;
         struct device_node *node = pdev->dev.of_node;
+        struct mtd_part_parser_data ppdata;
 
+        ppdata.of_node = pdev->dev.of_node;
         if (!fsl_lbc_ctrl_dev || !fsl_lbc_ctrl_dev->regs)
                 return -ENODEV;
         lbc = fsl_lbc_ctrl_dev->regs;
@@ -934,17 +924,8 @@ static int __devinit fsl_elbc_nand_probe(struct platform_device *pdev)
 
         /* First look for RedBoot table or partitions on the command
          * line, these take precedence over device tree information */
-        ret = parse_mtd_partitions(&priv->mtd, part_probe_types, &parts, 0);
-        if (ret < 0)
-                goto err;
-
-        if (ret == 0) {
-                ret = of_mtd_parse_partitions(priv->dev, node, &parts);
-                if (ret < 0)
-                        goto err;
-        }
-
-        mtd_device_register(&priv->mtd, parts, ret);
+        mtd_device_parse_register(&priv->mtd, part_probe_types, &ppdata,
+                                  NULL, 0);
 
         printk(KERN_INFO "eLBC NAND device at 0x%llx, bank %d\n",
                (unsigned long long)res.start, priv->bank);
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index 23752fd5bc59..b4f3cc9f32fb 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -158,7 +158,7 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun,
 {
         int ret;
         struct device_node *flash_np;
-        static const char *part_types[] = { "cmdlinepart", NULL, };
+        struct mtd_part_parser_data ppdata;
 
         fun->chip.IO_ADDR_R = fun->io_base;
         fun->chip.IO_ADDR_W = fun->io_base;
@@ -192,18 +192,12 @@ static int __devinit fun_chip_init(struct fsl_upm_nand *fun,
         if (ret)
                 goto err;
 
-        ret = parse_mtd_partitions(&fun->mtd, part_types, &fun->parts, 0);
-
-#ifdef CONFIG_MTD_OF_PARTS
-        if (ret == 0) {
-                ret = of_mtd_parse_partitions(fun->dev, flash_np, &fun->parts);
-                if (ret < 0)
-                        goto err;
-        }
-#endif
-        ret = mtd_device_register(&fun->mtd, fun->parts, ret);
+        ppdata.of_node = flash_np;
+        ret = mtd_device_parse_register(&fun->mtd, NULL, &ppdata, NULL, 0);
 err:
         of_node_put(flash_np);
+        if (ret)
+                kfree(fun->mtd.name);
         return ret;
 }
 
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index e9b275ac381c..e53b76064133 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -146,7 +146,7 @@ static struct mtd_partition partition_info_16KB_blk[] = {
         {
                 .name = "Root File System",
                 .offset = 0x460000,
-                .size = 0,
+                .size = MTDPART_SIZ_FULL,
         },
 };
 
@@ -173,13 +173,10 @@ static struct mtd_partition partition_info_128KB_blk[] = {
         {
                 .name = "Root File System",
                 .offset = 0x800000,
-                .size = 0,
+                .size = MTDPART_SIZ_FULL,
         },
 };
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-const char *part_probes[] = { "cmdlinepart", NULL };
-#endif
 
 /**
  * struct fsmc_nand_data - structure for FSMC NAND device state
@@ -187,8 +184,6 @@ const char *part_probes[] = { "cmdlinepart", NULL };
  * @pid:                Part ID on the AMBA PrimeCell format
  * @mtd:                MTD info for a NAND flash.
  * @nand:               Chip related info for a NAND flash.
- * @partitions:         Partition info for a NAND Flash.
- * @nr_partitions:      Total number of partition of a NAND flash.
  *
  * @ecc_place:          ECC placing locations in oobfree type format.
  * @bank:               Bank number for probed device.
@@ -203,8 +198,6 @@ struct fsmc_nand_data {
         u32                     pid;
         struct mtd_info         mtd;
         struct nand_chip        nand;
-        struct mtd_partition    *partitions;
-        unsigned int            nr_partitions;
 
         struct fsmc_eccplace    *ecc_place;
         unsigned int            bank;
@@ -716,65 +709,17 @@ static int __init fsmc_nand_probe(struct platform_device *pdev)
          * platform data,
          * default partition information present in driver.
          */
-#ifdef CONFIG_MTD_CMDLINE_PARTS
         /*
-         * Check if partition info passed via command line
+         * Check for partition info passed
          */
         host->mtd.name = "nand";
-        host->nr_partitions = parse_mtd_partitions(&host->mtd, part_probes,
-                        &host->partitions, 0);
-        if (host->nr_partitions <= 0) {
-#endif
-                /*
-                 * Check if partition info passed via command line
-                 */
-                if (pdata->partitions) {
-                        host->partitions = pdata->partitions;
-                        host->nr_partitions = pdata->nr_partitions;
-                } else {
-                        struct mtd_partition *partition;
-                        int i;
-
-                        /* Select the default partitions info */
-                        switch (host->mtd.size) {
-                        case 0x01000000:
-                        case 0x02000000:
-                        case 0x04000000:
-                                host->partitions = partition_info_16KB_blk;
-                                host->nr_partitions =
-                                        sizeof(partition_info_16KB_blk) /
-                                        sizeof(struct mtd_partition);
-                                break;
-                        case 0x08000000:
-                        case 0x10000000:
-                        case 0x20000000:
-                        case 0x40000000:
-                                host->partitions = partition_info_128KB_blk;
-                                host->nr_partitions =
-                                        sizeof(partition_info_128KB_blk) /
-                                        sizeof(struct mtd_partition);
-                                break;
-                        default:
-                                ret = -ENXIO;
-                                pr_err("Unsupported NAND size\n");
-                                goto err_probe;
-                        }
-
-                        partition = host->partitions;
-                        for (i = 0; i < host->nr_partitions; i++, partition++) {
-                                if (partition->size == 0) {
-                                        partition->size = host->mtd.size -
-                                                partition->offset;
-                                        break;
-                                }
-                        }
-                }
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        }
-#endif
-
-        ret = mtd_device_register(&host->mtd, host->partitions,
-                                  host->nr_partitions);
+        ret = mtd_device_parse_register(&host->mtd, NULL, 0,
+                        host->mtd.size <= 0x04000000 ?
+                                partition_info_16KB_blk :
+                                partition_info_128KB_blk,
+                        host->mtd.size <= 0x04000000 ?
+                                ARRAY_SIZE(partition_info_16KB_blk) :
+                                ARRAY_SIZE(partition_info_128KB_blk));
         if (ret)
                 goto err_probe;
 
@@ -822,7 +767,7 @@ static int fsmc_nand_remove(struct platform_device *pdev)
         platform_set_drvdata(pdev, NULL);
 
         if (host) {
-                mtd_device_unregister(&host->mtd);
+                nand_release(&host->mtd);
                 clk_disable(host->clk);
                 clk_put(host->clk);
 
diff --git a/drivers/mtd/nand/gpmi-nand/Makefile b/drivers/mtd/nand/gpmi-nand/Makefile
new file mode 100644
index 000000000000..3a462487c35e
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi_nand.o
+gpmi_nand-objs += gpmi-nand.o
+gpmi_nand-objs += gpmi-lib.o
diff --git a/drivers/mtd/nand/gpmi-nand/bch-regs.h b/drivers/mtd/nand/gpmi-nand/bch-regs.h
new file mode 100644
index 000000000000..4effb8c579db
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/bch-regs.h
@@ -0,0 +1,84 @@
+/*
+ * Freescale GPMI NAND Flash Driver
+ *
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef __GPMI_NAND_BCH_REGS_H
+#define __GPMI_NAND_BCH_REGS_H
+
+#define HW_BCH_CTRL                             0x00000000
+#define HW_BCH_CTRL_SET                         0x00000004
+#define HW_BCH_CTRL_CLR                         0x00000008
+#define HW_BCH_CTRL_TOG                         0x0000000c
+
+#define BM_BCH_CTRL_COMPLETE_IRQ_EN             (1 << 8)
+#define BM_BCH_CTRL_COMPLETE_IRQ                (1 << 0)
+
+#define HW_BCH_STATUS0                          0x00000010
+#define HW_BCH_MODE                             0x00000020
+#define HW_BCH_ENCODEPTR                        0x00000030
+#define HW_BCH_DATAPTR                          0x00000040
+#define HW_BCH_METAPTR                          0x00000050
+#define HW_BCH_LAYOUTSELECT                     0x00000070
+
+#define HW_BCH_FLASH0LAYOUT0                    0x00000080
+
+#define BP_BCH_FLASH0LAYOUT0_NBLOCKS            24
+#define BM_BCH_FLASH0LAYOUT0_NBLOCKS    (0xff << BP_BCH_FLASH0LAYOUT0_NBLOCKS)
+#define BF_BCH_FLASH0LAYOUT0_NBLOCKS(v)         \
+        (((v) << BP_BCH_FLASH0LAYOUT0_NBLOCKS) & BM_BCH_FLASH0LAYOUT0_NBLOCKS)
+
+#define BP_BCH_FLASH0LAYOUT0_META_SIZE          16
+#define BM_BCH_FLASH0LAYOUT0_META_SIZE  (0xff << BP_BCH_FLASH0LAYOUT0_META_SIZE)
+#define BF_BCH_FLASH0LAYOUT0_META_SIZE(v)       \
+        (((v) << BP_BCH_FLASH0LAYOUT0_META_SIZE)\
+                                         & BM_BCH_FLASH0LAYOUT0_META_SIZE)
+
+#define BP_BCH_FLASH0LAYOUT0_ECC0               12
+#define BM_BCH_FLASH0LAYOUT0_ECC0       (0xf << BP_BCH_FLASH0LAYOUT0_ECC0)
+#define BF_BCH_FLASH0LAYOUT0_ECC0(v)            \
+        (((v) << BP_BCH_FLASH0LAYOUT0_ECC0) & BM_BCH_FLASH0LAYOUT0_ECC0)
+
+#define BP_BCH_FLASH0LAYOUT0_DATA0_SIZE         0
+#define BM_BCH_FLASH0LAYOUT0_DATA0_SIZE         \
+                        (0xfff << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+#define BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(v)      \
+        (((v) << BP_BCH_FLASH0LAYOUT0_DATA0_SIZE)\
+                                         & BM_BCH_FLASH0LAYOUT0_DATA0_SIZE)
+
+#define HW_BCH_FLASH0LAYOUT1                    0x00000090
+
+#define BP_BCH_FLASH0LAYOUT1_PAGE_SIZE          16
+#define BM_BCH_FLASH0LAYOUT1_PAGE_SIZE          \
+                        (0xffff << BP_BCH_FLASH0LAYOUT1_PAGE_SIZE)
+#define BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(v)       \
+        (((v) << BP_BCH_FLASH0LAYOUT1_PAGE_SIZE) \
+                                         & BM_BCH_FLASH0LAYOUT1_PAGE_SIZE)
+
+#define BP_BCH_FLASH0LAYOUT1_ECCN               12
+#define BM_BCH_FLASH0LAYOUT1_ECCN       (0xf << BP_BCH_FLASH0LAYOUT1_ECCN)
+#define BF_BCH_FLASH0LAYOUT1_ECCN(v)            \
+        (((v) << BP_BCH_FLASH0LAYOUT1_ECCN) & BM_BCH_FLASH0LAYOUT1_ECCN)
+
+#define BP_BCH_FLASH0LAYOUT1_DATAN_SIZE         0
+#define BM_BCH_FLASH0LAYOUT1_DATAN_SIZE         \
+                        (0xfff << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+#define BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(v)      \
+        (((v) << BP_BCH_FLASH0LAYOUT1_DATAN_SIZE) \
+                                         & BM_BCH_FLASH0LAYOUT1_DATAN_SIZE)
+#endif
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
new file mode 100644
index 000000000000..de4db7604a3f
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -0,0 +1,1057 @@
+/*
+ * Freescale GPMI NAND Flash Driver
+ *
+ * Copyright (C) 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <linux/mtd/gpmi-nand.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <mach/mxs.h>
+
+#include "gpmi-nand.h"
+#include "gpmi-regs.h"
+#include "bch-regs.h"
+
+struct timing_threshod timing_default_threshold = {
+        .max_data_setup_cycles       = (BM_GPMI_TIMING0_DATA_SETUP >>
+                                                BP_GPMI_TIMING0_DATA_SETUP),
+        .internal_data_setup_in_ns   = 0,
+        .max_sample_delay_factor     = (BM_GPMI_CTRL1_RDN_DELAY >>
+                                                BP_GPMI_CTRL1_RDN_DELAY),
+        .max_dll_clock_period_in_ns  = 32,
+        .max_dll_delay_in_ns         = 16,
+};
+
+/*
+ * Clear the bit and poll it cleared.  This is usually called with
+ * a reset address and mask being either SFTRST(bit 31) or CLKGATE
+ * (bit 30).
+ */
+static int clear_poll_bit(void __iomem *addr, u32 mask)
+{
+        int timeout = 0x400;
+
+        /* clear the bit */
+        __mxs_clrl(mask, addr);
+
+        /*
+         * SFTRST needs 3 GPMI clocks to settle, the reference manual
+         * recommends to wait 1us.
+         */
+        udelay(1);
+
+        /* poll the bit becoming clear */
+        while ((readl(addr) & mask) && --timeout)
+                /* nothing */;
+
+        return !timeout;
+}
+
+#define MODULE_CLKGATE          (1 << 30)
+#define MODULE_SFTRST           (1 << 31)
+/*
+ * The current mxs_reset_block() will do two things:
+ *  [1] enable the module.
+ *  [2] reset the module.
+ *
+ * In most of the cases, it's ok. But there is a hardware bug in the BCH block.
+ * If you try to soft reset the BCH block, it becomes unusable until
+ * the next hard reset. This case occurs in the NAND boot mode. When the board
+ * boots by NAND, the ROM of the chip will initialize the BCH blocks itself.
+ * So If the driver tries to reset the BCH again, the BCH will not work anymore.
+ * You will see a DMA timeout in this case.
+ *
+ * To avoid this bug, just add a new parameter `just_enable` for
+ * the mxs_reset_block(), and rewrite it here.
+ */
+int gpmi_reset_block(void __iomem *reset_addr, bool just_enable)
+{
+        int ret;
+        int timeout = 0x400;
+
+        /* clear and poll SFTRST */
+        ret = clear_poll_bit(reset_addr, MODULE_SFTRST);
+        if (unlikely(ret))
+                goto error;
+
+        /* clear CLKGATE */
+        __mxs_clrl(MODULE_CLKGATE, reset_addr);
+
+        if (!just_enable) {
+                /* set SFTRST to reset the block */
+                __mxs_setl(MODULE_SFTRST, reset_addr);
+                udelay(1);
+
+                /* poll CLKGATE becoming set */
+                while ((!(readl(reset_addr) & MODULE_CLKGATE)) && --timeout)
+                        /* nothing */;
+                if (unlikely(!timeout))
+                        goto error;
+        }
+
+        /* clear and poll SFTRST */
+        ret = clear_poll_bit(reset_addr, MODULE_SFTRST);
+        if (unlikely(ret))
+                goto error;
+
+        /* clear and poll CLKGATE */
+        ret = clear_poll_bit(reset_addr, MODULE_CLKGATE);
+        if (unlikely(ret))
+                goto error;
+
+        return 0;
+
+error:
+        pr_err("%s(%p): module reset timeout\n", __func__, reset_addr);
+        return -ETIMEDOUT;
+}
+
+int gpmi_init(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        int ret;
+
+        ret = clk_enable(r->clock);
+        if (ret)
+                goto err_out;
+        ret = gpmi_reset_block(r->gpmi_regs, false);
+        if (ret)
+                goto err_out;
+
+        /* Choose NAND mode. */
+        writel(BM_GPMI_CTRL1_GPMI_MODE, r->gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+        /* Set the IRQ polarity. */
+        writel(BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY,
+                                r->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        /* Disable Write-Protection. */
+        writel(BM_GPMI_CTRL1_DEV_RESET, r->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        /* Select BCH ECC. */
+        writel(BM_GPMI_CTRL1_BCH_MODE, r->gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        clk_disable(r->clock);
+        return 0;
+err_out:
+        return ret;
+}
+
+/* This function is very useful. It is called only when the bug occur. */
+void gpmi_dump_info(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        struct bch_geometry *geo = &this->bch_geometry;
+        u32 reg;
+        int i;
+
+        pr_err("Show GPMI registers :\n");
+        for (i = 0; i <= HW_GPMI_DEBUG / 0x10 + 1; i++) {
+                reg = readl(r->gpmi_regs + i * 0x10);
+                pr_err("offset 0x%.3x : 0x%.8x\n", i * 0x10, reg);
+        }
+
+        /* start to print out the BCH info */
+        pr_err("BCH Geometry :\n");
+        pr_err("GF length              : %u\n", geo->gf_len);
+        pr_err("ECC Strength           : %u\n", geo->ecc_strength);
+        pr_err("Page Size in Bytes     : %u\n", geo->page_size);
+        pr_err("Metadata Size in Bytes : %u\n", geo->metadata_size);
+        pr_err("ECC Chunk Size in Bytes: %u\n", geo->ecc_chunk_size);
+        pr_err("ECC Chunk Count        : %u\n", geo->ecc_chunk_count);
+        pr_err("Payload Size in Bytes  : %u\n", geo->payload_size);
+        pr_err("Auxiliary Size in Bytes: %u\n", geo->auxiliary_size);
+        pr_err("Auxiliary Status Offset: %u\n", geo->auxiliary_status_offset);
+        pr_err("Block Mark Byte Offset : %u\n", geo->block_mark_byte_offset);
+        pr_err("Block Mark Bit Offset  : %u\n", geo->block_mark_bit_offset);
+}
+
+/* Configures the geometry for BCH.  */
+int bch_set_geometry(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        struct bch_geometry *bch_geo = &this->bch_geometry;
+        unsigned int block_count;
+        unsigned int block_size;
+        unsigned int metadata_size;
+        unsigned int ecc_strength;
+        unsigned int page_size;
+        int ret;
+
+        if (common_nfc_set_geometry(this))
+                return !0;
+
+        block_count   = bch_geo->ecc_chunk_count - 1;
+        block_size    = bch_geo->ecc_chunk_size;
+        metadata_size = bch_geo->metadata_size;
+        ecc_strength  = bch_geo->ecc_strength >> 1;
+        page_size     = bch_geo->page_size;
+
+        ret = clk_enable(r->clock);
+        if (ret)
+                goto err_out;
+
+        ret = gpmi_reset_block(r->bch_regs, true);
+        if (ret)
+                goto err_out;
+
+        /* Configure layout 0. */
+        writel(BF_BCH_FLASH0LAYOUT0_NBLOCKS(block_count)
+                        | BF_BCH_FLASH0LAYOUT0_META_SIZE(metadata_size)
+                        | BF_BCH_FLASH0LAYOUT0_ECC0(ecc_strength)
+                        | BF_BCH_FLASH0LAYOUT0_DATA0_SIZE(block_size),
+                        r->bch_regs + HW_BCH_FLASH0LAYOUT0);
+
+        writel(BF_BCH_FLASH0LAYOUT1_PAGE_SIZE(page_size)
+                        | BF_BCH_FLASH0LAYOUT1_ECCN(ecc_strength)
+                        | BF_BCH_FLASH0LAYOUT1_DATAN_SIZE(block_size),
+                        r->bch_regs + HW_BCH_FLASH0LAYOUT1);
+
+        /* Set *all* chip selects to use layout 0. */
+        writel(0, r->bch_regs + HW_BCH_LAYOUTSELECT);
+
+        /* Enable interrupts. */
+        writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
+                                r->bch_regs + HW_BCH_CTRL_SET);
+
+        clk_disable(r->clock);
+        return 0;
+err_out:
+        return ret;
+}
+
+/* Converts time in nanoseconds to cycles. */
+static unsigned int ns_to_cycles(unsigned int time,
+                        unsigned int period, unsigned int min)
+{
+        unsigned int k;
+
+        k = (time + period - 1) / period;
+        return max(k, min);
+}
+
+/* Apply timing to current hardware conditions. */
+static int gpmi_nfc_compute_hardware_timing(struct gpmi_nand_data *this,
+                                        struct gpmi_nfc_hardware_timing *hw)
+{
+        struct gpmi_nand_platform_data *pdata = this->pdata;
+        struct timing_threshod *nfc = &timing_default_threshold;
+        struct nand_chip *nand = &this->nand;
+        struct nand_timing target = this->timing;
+        bool improved_timing_is_available;
+        unsigned long clock_frequency_in_hz;
+        unsigned int clock_period_in_ns;
+        bool dll_use_half_periods;
+        unsigned int dll_delay_shift;
+        unsigned int max_sample_delay_in_ns;
+        unsigned int address_setup_in_cycles;
+        unsigned int data_setup_in_ns;
+        unsigned int data_setup_in_cycles;
+        unsigned int data_hold_in_cycles;
+        int ideal_sample_delay_in_ns;
+        unsigned int sample_delay_factor;
+        int tEYE;
+        unsigned int min_prop_delay_in_ns = pdata->min_prop_delay_in_ns;
+        unsigned int max_prop_delay_in_ns = pdata->max_prop_delay_in_ns;
+
+        /*
+         * If there are multiple chips, we need to relax the timings to allow
+         * for signal distortion due to higher capacitance.
+         */
+        if (nand->numchips > 2) {
+                target.data_setup_in_ns    += 10;
+                target.data_hold_in_ns     += 10;
+                target.address_setup_in_ns += 10;
+        } else if (nand->numchips > 1) {
+                target.data_setup_in_ns    += 5;
+                target.data_hold_in_ns     += 5;
+                target.address_setup_in_ns += 5;
+        }
+
+        /* Check if improved timing information is available. */
+        improved_timing_is_available =
+                (target.tREA_in_ns  >= 0) &&
+                (target.tRLOH_in_ns >= 0) &&
+                (target.tRHOH_in_ns >= 0) ;
+
+        /* Inspect the clock. */
+        clock_frequency_in_hz = nfc->clock_frequency_in_hz;
+        clock_period_in_ns    = 1000000000 / clock_frequency_in_hz;
+
+        /*
+         * The NFC quantizes setup and hold parameters in terms of clock cycles.
+         * Here, we quantize the setup and hold timing parameters to the
+         * next-highest clock period to make sure we apply at least the
+         * specified times.
+         *
+         * For data setup and data hold, the hardware interprets a value of zero
+         * as the largest possible delay. This is not what's intended by a zero
+         * in the input parameter, so we impose a minimum of one cycle.
+         */
+        data_setup_in_cycles    = ns_to_cycles(target.data_setup_in_ns,
+                                                        clock_period_in_ns, 1);
+        data_hold_in_cycles     = ns_to_cycles(target.data_hold_in_ns,
+                                                        clock_period_in_ns, 1);
+        address_setup_in_cycles = ns_to_cycles(target.address_setup_in_ns,
+                                                        clock_period_in_ns, 0);
+
+        /*
+         * The clock's period affects the sample delay in a number of ways:
+         *
+         * (1) The NFC HAL tells us the maximum clock period the sample delay
+         *     DLL can tolerate. If the clock period is greater than half that
+         *     maximum, we must configure the DLL to be driven by half periods.
+         *
+         * (2) We need to convert from an ideal sample delay, in ns, to a
+         *     "sample delay factor," which the NFC uses. This factor depends on
+         *     whether we're driving the DLL with full or half periods.
+         *     Paraphrasing the reference manual:
+         *
+         *         AD = SDF x 0.125 x RP
+         *
+         * where:
+         *
+         *     AD   is the applied delay, in ns.
+         *     SDF  is the sample delay factor, which is dimensionless.
+         *     RP   is the reference period, in ns, which is a full clock period
+         *          if the DLL is being driven by full periods, or half that if
+         *          the DLL is being driven by half periods.
+         *
+         * Let's re-arrange this in a way that's more useful to us:
+         *
+         *                        8
+         *         SDF  =  AD x ----
+         *                       RP
+         *
+         * The reference period is either the clock period or half that, so this
+         * is:
+         *
+         *                        8       AD x DDF
+         *         SDF  =  AD x -----  =  --------
+         *                      f x P        P
+         *
+         * where:
+         *
+         *       f  is 1 or 1/2, depending on how we're driving the DLL.
+         *       P  is the clock period.
+         *     DDF  is the DLL Delay Factor, a dimensionless value that
+         *          incorporates all the constants in the conversion.
+         *
+         * DDF will be either 8 or 16, both of which are powers of two. We can
+         * reduce the cost of this conversion by using bit shifts instead of
+         * multiplication or division. Thus:
+         *
+         *                 AD << DDS
+         *         SDF  =  ---------
+         *                     P
+         *
+         *     or
+         *
+         *         AD  =  (SDF >> DDS) x P
+         *
+         * where:
+         *
+         *     DDS  is the DLL Delay Shift, the logarithm to base 2 of the DDF.
+         */
+        if (clock_period_in_ns > (nfc->max_dll_clock_period_in_ns >> 1)) {
+                dll_use_half_periods = true;
+                dll_delay_shift      = 3 + 1;
+        } else {
+                dll_use_half_periods = false;
+                dll_delay_shift      = 3;
+        }
+
+        /*
+         * Compute the maximum sample delay the NFC allows, under current
+         * conditions. If the clock is running too slowly, no sample delay is
+         * possible.
+         */
+        if (clock_period_in_ns > nfc->max_dll_clock_period_in_ns)
+                max_sample_delay_in_ns = 0;
+        else {
+                /*
+                 * Compute the delay implied by the largest sample delay factor
+                 * the NFC allows.
+                 */
+                max_sample_delay_in_ns =
+                        (nfc->max_sample_delay_factor * clock_period_in_ns) >>
+                                                                dll_delay_shift;
+
+                /*
+                 * Check if the implied sample delay larger than the NFC
+                 * actually allows.
+                 */
+                if (max_sample_delay_in_ns > nfc->max_dll_delay_in_ns)
+                        max_sample_delay_in_ns = nfc->max_dll_delay_in_ns;
+        }
+
+        /*
+         * Check if improved timing information is available. If not, we have to
+         * use a less-sophisticated algorithm.
+         */
+        if (!improved_timing_is_available) {
+                /*
+                 * Fold the read setup time required by the NFC into the ideal
+                 * sample delay.
+                 */
+                ideal_sample_delay_in_ns = target.gpmi_sample_delay_in_ns +
+                                                nfc->internal_data_setup_in_ns;
+
+                /*
+                 * The ideal sample delay may be greater than the maximum
+                 * allowed by the NFC. If so, we can trade off sample delay time
+                 * for more data setup time.
+                 *
+                 * In each iteration of the following loop, we add a cycle to
+                 * the data setup time and subtract a corresponding amount from
+                 * the sample delay until we've satisified the constraints or
+                 * can't do any better.
+                 */
+                while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) &&
+                        (data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+
+                        data_setup_in_cycles++;
+                        ideal_sample_delay_in_ns -= clock_period_in_ns;
+
+                        if (ideal_sample_delay_in_ns < 0)
+                                ideal_sample_delay_in_ns = 0;
+
+                }
+
+                /*
+                 * Compute the sample delay factor that corresponds most closely
+                 * to the ideal sample delay. If the result is too large for the
+                 * NFC, use the maximum value.
+                 *
+                 * Notice that we use the ns_to_cycles function to compute the
+                 * sample delay factor. We do this because the form of the
+                 * computation is the same as that for calculating cycles.
+                 */
+                sample_delay_factor =
+                        ns_to_cycles(
+                                ideal_sample_delay_in_ns << dll_delay_shift,
+                                                        clock_period_in_ns, 0);
+
+                if (sample_delay_factor > nfc->max_sample_delay_factor)
+                        sample_delay_factor = nfc->max_sample_delay_factor;
+
+                /* Skip to the part where we return our results. */
+                goto return_results;
+        }
+
+        /*
+         * If control arrives here, we have more detailed timing information,
+         * so we can use a better algorithm.
+         */
+
+        /*
+         * Fold the read setup time required by the NFC into the maximum
+         * propagation delay.
+         */
+        max_prop_delay_in_ns += nfc->internal_data_setup_in_ns;
+
+        /*
+         * Earlier, we computed the number of clock cycles required to satisfy
+         * the data setup time. Now, we need to know the actual nanoseconds.
+         */
+        data_setup_in_ns = clock_period_in_ns * data_setup_in_cycles;
+
+        /*
+         * Compute tEYE, the width of the data eye when reading from the NAND
+         * Flash. The eye width is fundamentally determined by the data setup
+         * time, perturbed by propagation delays and some characteristics of the
+         * NAND Flash device.
+         *
+         * start of the eye = max_prop_delay + tREA
+         * end of the eye   = min_prop_delay + tRHOH + data_setup
+         */
+        tEYE = (int)min_prop_delay_in_ns + (int)target.tRHOH_in_ns +
+                                                        (int)data_setup_in_ns;
+
+        tEYE -= (int)max_prop_delay_in_ns + (int)target.tREA_in_ns;
+
+        /*
+         * The eye must be open. If it's not, we can try to open it by
+         * increasing its main forcer, the data setup time.
+         *
+         * In each iteration of the following loop, we increase the data setup
+         * time by a single clock cycle. We do this until either the eye is
+         * open or we run into NFC limits.
+         */
+        while ((tEYE <= 0) &&
+                        (data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+                /* Give a cycle to data setup. */
+                data_setup_in_cycles++;
+                /* Synchronize the data setup time with the cycles. */
+                data_setup_in_ns += clock_period_in_ns;
+                /* Adjust tEYE accordingly. */
+                tEYE += clock_period_in_ns;
+        }
+
+        /*
+         * When control arrives here, the eye is open. The ideal time to sample
+         * the data is in the center of the eye:
+         *
+         *     end of the eye + start of the eye
+         *     ---------------------------------  -  data_setup
+         *                    2
+         *
+         * After some algebra, this simplifies to the code immediately below.
+         */
+        ideal_sample_delay_in_ns =
+                ((int)max_prop_delay_in_ns +
+                        (int)target.tREA_in_ns +
+                                (int)min_prop_delay_in_ns +
+                                        (int)target.tRHOH_in_ns -
+                                                (int)data_setup_in_ns) >> 1;
+
+        /*
+         * The following figure illustrates some aspects of a NAND Flash read:
+         *
+         *
+         *           __                   _____________________________________
+         * RDN         \_________________/
+         *
+         *                                         <---- tEYE ----->
+         *                                        /-----------------\
+         * Read Data ----------------------------<                   >---------
+         *                                        \-----------------/
+         *             ^                 ^                 ^              ^
+         *             |                 |                 |              |
+         *             |<--Data Setup -->|<--Delay Time -->|              |
+         *             |                 |                 |              |
+         *             |                 |                                |
+         *             |                 |<--   Quantized Delay Time   -->|
+         *             |                 |                                |
+         *
+         *
+         * We have some issues we must now address:
+         *
+         * (1) The *ideal* sample delay time must not be negative. If it is, we
+         *     jam it to zero.
+         *
+         * (2) The *ideal* sample delay time must not be greater than that
+         *     allowed by the NFC. If it is, we can increase the data setup
+         *     time, which will reduce the delay between the end of the data
+         *     setup and the center of the eye. It will also make the eye
+         *     larger, which might help with the next issue...
+         *
+         * (3) The *quantized* sample delay time must not fall either before the
+         *     eye opens or after it closes (the latter is the problem
+         *     illustrated in the above figure).
+         */
+
+        /* Jam a negative ideal sample delay to zero. */
+        if (ideal_sample_delay_in_ns < 0)
+                ideal_sample_delay_in_ns = 0;
+
+        /*
+         * Extend the data setup as needed to reduce the ideal sample delay
+         * below the maximum permitted by the NFC.
+         */
+        while ((ideal_sample_delay_in_ns > max_sample_delay_in_ns) &&
+                        (data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+
+                /* Give a cycle to data setup. */
+                data_setup_in_cycles++;
+                /* Synchronize the data setup time with the cycles. */
+                data_setup_in_ns += clock_period_in_ns;
+                /* Adjust tEYE accordingly. */
+                tEYE += clock_period_in_ns;
+
+                /*
+                 * Decrease the ideal sample delay by one half cycle, to keep it
+                 * in the middle of the eye.
+                 */
+                ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1);
+
+                /* Jam a negative ideal sample delay to zero. */
+                if (ideal_sample_delay_in_ns < 0)
+                        ideal_sample_delay_in_ns = 0;
+        }
+
+        /*
+         * Compute the sample delay factor that corresponds to the ideal sample
+         * delay. If the result is too large, then use the maximum allowed
+         * value.
+         *
+         * Notice that we use the ns_to_cycles function to compute the sample
+         * delay factor. We do this because the form of the computation is the
+         * same as that for calculating cycles.
+         */
+        sample_delay_factor =
+                ns_to_cycles(ideal_sample_delay_in_ns << dll_delay_shift,
+                                                        clock_period_in_ns, 0);
+
+        if (sample_delay_factor > nfc->max_sample_delay_factor)
+                sample_delay_factor = nfc->max_sample_delay_factor;
+
+        /*
+         * These macros conveniently encapsulate a computation we'll use to
+         * continuously evaluate whether or not the data sample delay is inside
+         * the eye.
+         */
+        #define IDEAL_DELAY  ((int) ideal_sample_delay_in_ns)
+
+        #define QUANTIZED_DELAY  \
+                ((int) ((sample_delay_factor * clock_period_in_ns) >> \
+                                                        dll_delay_shift))
+
+        #define DELAY_ERROR  (abs(QUANTIZED_DELAY - IDEAL_DELAY))
+
+        #define SAMPLE_IS_NOT_WITHIN_THE_EYE  (DELAY_ERROR > (tEYE >> 1))
+
+        /*
+         * While the quantized sample time falls outside the eye, reduce the
+         * sample delay or extend the data setup to move the sampling point back
+         * toward the eye. Do not allow the number of data setup cycles to
+         * exceed the maximum allowed by the NFC.
+         */
+        while (SAMPLE_IS_NOT_WITHIN_THE_EYE &&
+                        (data_setup_in_cycles < nfc->max_data_setup_cycles)) {
+                /*
+                 * If control arrives here, the quantized sample delay falls
+                 * outside the eye. Check if it's before the eye opens, or after
+                 * the eye closes.
+                 */
+                if (QUANTIZED_DELAY > IDEAL_DELAY) {
+                        /*
+                         * If control arrives here, the quantized sample delay
+                         * falls after the eye closes. Decrease the quantized
+                         * delay time and then go back to re-evaluate.
+                         */
+                        if (sample_delay_factor != 0)
+                                sample_delay_factor--;
+                        continue;
+                }
+
+                /*
+                 * If control arrives here, the quantized sample delay falls
+                 * before the eye opens. Shift the sample point by increasing
+                 * data setup time. This will also make the eye larger.
+                 */
+
+                /* Give a cycle to data setup. */
+                data_setup_in_cycles++;
+                /* Synchronize the data setup time with the cycles. */
+                data_setup_in_ns += clock_period_in_ns;
+                /* Adjust tEYE accordingly. */
+                tEYE += clock_period_in_ns;
+
+                /*
+                 * Decrease the ideal sample delay by one half cycle, to keep it
+                 * in the middle of the eye.
+                 */
+                ideal_sample_delay_in_ns -= (clock_period_in_ns >> 1);
+
+                /* ...and one less period for the delay time. */
+                ideal_sample_delay_in_ns -= clock_period_in_ns;
+
+                /* Jam a negative ideal sample delay to zero. */
+                if (ideal_sample_delay_in_ns < 0)
+                        ideal_sample_delay_in_ns = 0;
+
+                /*
+                 * We have a new ideal sample delay, so re-compute the quantized
+                 * delay.
+                 */
+                sample_delay_factor =
+                        ns_to_cycles(
+                                ideal_sample_delay_in_ns << dll_delay_shift,
+                                                        clock_period_in_ns, 0);
+
+                if (sample_delay_factor > nfc->max_sample_delay_factor)
+                        sample_delay_factor = nfc->max_sample_delay_factor;
+        }
+
+        /* Control arrives here when we're ready to return our results. */
+return_results:
+        hw->data_setup_in_cycles    = data_setup_in_cycles;
+        hw->data_hold_in_cycles     = data_hold_in_cycles;
+        hw->address_setup_in_cycles = address_setup_in_cycles;
+        hw->use_half_periods        = dll_use_half_periods;
+        hw->sample_delay_factor     = sample_delay_factor;
+
+        /* Return success. */
+        return 0;
+}
+
+/* Begin the I/O */
+void gpmi_begin(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        struct timing_threshod *nfc = &timing_default_threshold;
+        unsigned char  *gpmi_regs = r->gpmi_regs;
+        unsigned int   clock_period_in_ns;
+        uint32_t       reg;
+        unsigned int   dll_wait_time_in_us;
+        struct gpmi_nfc_hardware_timing  hw;
+        int ret;
+
+        /* Enable the clock. */
+        ret = clk_enable(r->clock);
+        if (ret) {
+                pr_err("We failed in enable the clk\n");
+                goto err_out;
+        }
+
+        /* set ready/busy timeout */
+        writel(0x500 << BP_GPMI_TIMING1_BUSY_TIMEOUT,
+                gpmi_regs + HW_GPMI_TIMING1);
+
+        /* Get the timing information we need. */
+        nfc->clock_frequency_in_hz = clk_get_rate(r->clock);
+        clock_period_in_ns = 1000000000 / nfc->clock_frequency_in_hz;
+
+        gpmi_nfc_compute_hardware_timing(this, &hw);
+
+        /* Set up all the simple timing parameters. */
+        reg = BF_GPMI_TIMING0_ADDRESS_SETUP(hw.address_setup_in_cycles) |
+                BF_GPMI_TIMING0_DATA_HOLD(hw.data_hold_in_cycles)         |
+                BF_GPMI_TIMING0_DATA_SETUP(hw.data_setup_in_cycles)       ;
+
+        writel(reg, gpmi_regs + HW_GPMI_TIMING0);
+
+        /*
+         * DLL_ENABLE must be set to 0 when setting RDN_DELAY or HALF_PERIOD.
+         */
+        writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+        /* Clear out the DLL control fields. */
+        writel(BM_GPMI_CTRL1_RDN_DELAY,   gpmi_regs + HW_GPMI_CTRL1_CLR);
+        writel(BM_GPMI_CTRL1_HALF_PERIOD, gpmi_regs + HW_GPMI_CTRL1_CLR);
+
+        /* If no sample delay is called for, return immediately. */
+        if (!hw.sample_delay_factor)
+                return;
+
+        /* Configure the HALF_PERIOD flag. */
+        if (hw.use_half_periods)
+                writel(BM_GPMI_CTRL1_HALF_PERIOD,
+                                                gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        /* Set the delay factor. */
+        writel(BF_GPMI_CTRL1_RDN_DELAY(hw.sample_delay_factor),
+                                                gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        /* Enable the DLL. */
+        writel(BM_GPMI_CTRL1_DLL_ENABLE, gpmi_regs + HW_GPMI_CTRL1_SET);
+
+        /*
+         * After we enable the GPMI DLL, we have to wait 64 clock cycles before
+         * we can use the GPMI.
+         *
+         * Calculate the amount of time we need to wait, in microseconds.
+         */
+        dll_wait_time_in_us = (clock_period_in_ns * 64) / 1000;
+
+        if (!dll_wait_time_in_us)
+                dll_wait_time_in_us = 1;
+
+        /* Wait for the DLL to settle. */
+        udelay(dll_wait_time_in_us);
+
+err_out:
+        return;
+}
+
+void gpmi_end(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        clk_disable(r->clock);
+}
+
+/* Clears a BCH interrupt. */
+void gpmi_clear_bch(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+        writel(BM_BCH_CTRL_COMPLETE_IRQ, r->bch_regs + HW_BCH_CTRL_CLR);
+}
+
+/* Returns the Ready/Busy status of the given chip. */
+int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip)
+{
+        struct resources *r = &this->resources;
+        uint32_t mask = 0;
+        uint32_t reg = 0;
+
+        if (GPMI_IS_MX23(this)) {
+                mask = MX23_BM_GPMI_DEBUG_READY0 << chip;
+                reg = readl(r->gpmi_regs + HW_GPMI_DEBUG);
+        } else if (GPMI_IS_MX28(this)) {
+                mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip);
+                reg = readl(r->gpmi_regs + HW_GPMI_STAT);
+        } else
+                pr_err("unknow arch.\n");
+        return reg & mask;
+}
+
+static inline void set_dma_type(struct gpmi_nand_data *this,
+                                        enum dma_ops_type type)
+{
+        this->last_dma_type = this->dma_type;
+        this->dma_type = type;
+}
+
+int gpmi_send_command(struct gpmi_nand_data *this)
+{
+        struct dma_chan *channel = get_dma_chan(this);
+        struct dma_async_tx_descriptor *desc;
+        struct scatterlist *sgl;
+        int chip = this->current_chip;
+        u32 pio[3];
+
+        /* [1] send out the PIO words */
+        pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(BV_GPMI_CTRL0_COMMAND_MODE__WRITE)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(BV_GPMI_CTRL0_ADDRESS__NAND_CLE)
+                | BM_GPMI_CTRL0_ADDRESS_INCREMENT
+                | BF_GPMI_CTRL0_XFER_COUNT(this->command_length);
+        pio[1] = pio[2] = 0;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        (struct scatterlist *)pio,
+                                        ARRAY_SIZE(pio), DMA_NONE, 0);
+        if (!desc) {
+                pr_err("step 1 error\n");
+                return -1;
+        }
+
+        /* [2] send out the COMMAND + ADDRESS string stored in @buffer */
+        sgl = &this->cmd_sgl;
+
+        sg_init_one(sgl, this->cmd_buffer, this->command_length);
+        dma_map_sg(this->dev, sgl, 1, DMA_TO_DEVICE);
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        sgl, 1, DMA_TO_DEVICE, 1);
+        if (!desc) {
+                pr_err("step 2 error\n");
+                return -1;
+        }
+
+        /* [3] submit the DMA */
+        set_dma_type(this, DMA_FOR_COMMAND);
+        return start_dma_without_bch_irq(this, desc);
+}
+
+int gpmi_send_data(struct gpmi_nand_data *this)
+{
+        struct dma_async_tx_descriptor *desc;
+        struct dma_chan *channel = get_dma_chan(this);
+        int chip = this->current_chip;
+        uint32_t command_mode;
+        uint32_t address;
+        u32 pio[2];
+
+        /* [1] PIO */
+        command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+        address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+        pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(address)
+                | BF_GPMI_CTRL0_XFER_COUNT(this->upper_len);
+        pio[1] = 0;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        (struct scatterlist *)pio,
+                                        ARRAY_SIZE(pio), DMA_NONE, 0);
+        if (!desc) {
+                pr_err("step 1 error\n");
+                return -1;
+        }
+
+        /* [2] send DMA request */
+        prepare_data_dma(this, DMA_TO_DEVICE);
+        desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl,
+                                                1, DMA_TO_DEVICE, 1);
+        if (!desc) {
+                pr_err("step 2 error\n");
+                return -1;
+        }
+        /* [3] submit the DMA */
+        set_dma_type(this, DMA_FOR_WRITE_DATA);
+        return start_dma_without_bch_irq(this, desc);
+}
+
+int gpmi_read_data(struct gpmi_nand_data *this)
+{
+        struct dma_async_tx_descriptor *desc;
+        struct dma_chan *channel = get_dma_chan(this);
+        int chip = this->current_chip;
+        u32 pio[2];
+
+        /* [1] : send PIO */
+        pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(BV_GPMI_CTRL0_COMMAND_MODE__READ)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(BV_GPMI_CTRL0_ADDRESS__NAND_DATA)
+                | BF_GPMI_CTRL0_XFER_COUNT(this->upper_len);
+        pio[1] = 0;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        (struct scatterlist *)pio,
+                                        ARRAY_SIZE(pio), DMA_NONE, 0);
+        if (!desc) {
+                pr_err("step 1 error\n");
+                return -1;
+        }
+
+        /* [2] : send DMA request */
+        prepare_data_dma(this, DMA_FROM_DEVICE);
+        desc = channel->device->device_prep_slave_sg(channel, &this->data_sgl,
+                                                1, DMA_FROM_DEVICE, 1);
+        if (!desc) {
+                pr_err("step 2 error\n");
+                return -1;
+        }
+
+        /* [3] : submit the DMA */
+        set_dma_type(this, DMA_FOR_READ_DATA);
+        return start_dma_without_bch_irq(this, desc);
+}
+
+int gpmi_send_page(struct gpmi_nand_data *this,
+                        dma_addr_t payload, dma_addr_t auxiliary)
+{
+        struct bch_geometry *geo = &this->bch_geometry;
+        uint32_t command_mode;
+        uint32_t address;
+        uint32_t ecc_command;
+        uint32_t buffer_mask;
+        struct dma_async_tx_descriptor *desc;
+        struct dma_chan *channel = get_dma_chan(this);
+        int chip = this->current_chip;
+        u32 pio[6];
+
+        /* A DMA descriptor that does an ECC page read. */
+        command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WRITE;
+        address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+        ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE;
+        buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE |
+                                BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+        pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(address)
+                | BF_GPMI_CTRL0_XFER_COUNT(0);
+        pio[1] = 0;
+        pio[2] = BM_GPMI_ECCCTRL_ENABLE_ECC
+                | BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)
+                | BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask);
+        pio[3] = geo->page_size;
+        pio[4] = payload;
+        pio[5] = auxiliary;
+
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        (struct scatterlist *)pio,
+                                        ARRAY_SIZE(pio), DMA_NONE, 0);
+        if (!desc) {
+                pr_err("step 2 error\n");
+                return -1;
+        }
+        set_dma_type(this, DMA_FOR_WRITE_ECC_PAGE);
+        return start_dma_with_bch_irq(this, desc);
+}
+
+int gpmi_read_page(struct gpmi_nand_data *this,
+                                dma_addr_t payload, dma_addr_t auxiliary)
+{
+        struct bch_geometry *geo = &this->bch_geometry;
+        uint32_t command_mode;
+        uint32_t address;
+        uint32_t ecc_command;
+        uint32_t buffer_mask;
+        struct dma_async_tx_descriptor *desc;
+        struct dma_chan *channel = get_dma_chan(this);
+        int chip = this->current_chip;
+        u32 pio[6];
+
+        /* [1] Wait for the chip to report ready. */
+        command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+        address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+        pio[0] =  BF_GPMI_CTRL0_COMMAND_MODE(command_mode)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(address)
+                | BF_GPMI_CTRL0_XFER_COUNT(0);
+        pio[1] = 0;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                (struct scatterlist *)pio, 2, DMA_NONE, 0);
+        if (!desc) {
+                pr_err("step 1 error\n");
+                return -1;
+        }
+
+        /* [2] Enable the BCH block and read. */
+        command_mode = BV_GPMI_CTRL0_COMMAND_MODE__READ;
+        address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+        ecc_command  = BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE;
+        buffer_mask  = BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE
+                        | BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY;
+
+        pio[0] =  BF_GPMI_CTRL0_COMMAND_MODE(command_mode)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(address)
+                | BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);
+
+        pio[1] = 0;
+        pio[2] =  BM_GPMI_ECCCTRL_ENABLE_ECC
+                | BF_GPMI_ECCCTRL_ECC_CMD(ecc_command)
+                | BF_GPMI_ECCCTRL_BUFFER_MASK(buffer_mask);
+        pio[3] = geo->page_size;
+        pio[4] = payload;
+        pio[5] = auxiliary;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                        (struct scatterlist *)pio,
+                                        ARRAY_SIZE(pio), DMA_NONE, 1);
+        if (!desc) {
+                pr_err("step 2 error\n");
+                return -1;
+        }
+
+        /* [3] Disable the BCH block */
+        command_mode = BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY;
+        address      = BV_GPMI_CTRL0_ADDRESS__NAND_DATA;
+
+        pio[0] = BF_GPMI_CTRL0_COMMAND_MODE(command_mode)
+                | BM_GPMI_CTRL0_WORD_LENGTH
+                | BF_GPMI_CTRL0_CS(chip, this)
+                | BF_GPMI_CTRL0_LOCK_CS(LOCK_CS_ENABLE, this)
+                | BF_GPMI_CTRL0_ADDRESS(address)
+                | BF_GPMI_CTRL0_XFER_COUNT(geo->page_size);
+        pio[1] = 0;
+        desc = channel->device->device_prep_slave_sg(channel,
+                                (struct scatterlist *)pio, 2, DMA_NONE, 1);
+        if (!desc) {
+                pr_err("step 3 error\n");
+                return -1;
+        }
+
+        /* [4] submit the DMA */
+        set_dma_type(this, DMA_FOR_READ_ECC_PAGE);
+        return start_dma_with_bch_irq(this, desc);
+}
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
new file mode 100644
index 000000000000..071b63420f0e
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -0,0 +1,1619 @@
+/*
+ * Freescale GPMI NAND Flash Driver
+ *
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/mtd/gpmi-nand.h>
+#include <linux/mtd/partitions.h>
+
+#include "gpmi-nand.h"
+
+/* add our owner bbt descriptor */
+static uint8_t scan_ff_pattern[] = { 0xff };
+static struct nand_bbt_descr gpmi_bbt_descr = {
+        .options        = 0,
+        .offs           = 0,
+        .len            = 1,
+        .pattern        = scan_ff_pattern
+};
+
+/*  We will use all the (page + OOB). */
+static struct nand_ecclayout gpmi_hw_ecclayout = {
+        .eccbytes = 0,
+        .eccpos = { 0, },
+        .oobfree = { {.offset = 0, .length = 0} }
+};
+
+static irqreturn_t bch_irq(int irq, void *cookie)
+{
+        struct gpmi_nand_data *this = cookie;
+
+        gpmi_clear_bch(this);
+        complete(&this->bch_done);
+        return IRQ_HANDLED;
+}
+
+/*
+ *  Calculate the ECC strength by hand:
+ *      E : The ECC strength.
+ *      G : the length of Galois Field.
+ *      N : The chunk count of per page.
+ *      O : the oobsize of the NAND chip.
+ *      M : the metasize of per page.
+ *
+ *      The formula is :
+ *              E * G * N
+ *            ------------ <= (O - M)
+ *                  8
+ *
+ *      So, we get E by:
+ *                    (O - M) * 8
+ *              E <= -------------
+ *                       G * N
+ */
+static inline int get_ecc_strength(struct gpmi_nand_data *this)
+{
+        struct bch_geometry *geo = &this->bch_geometry;
+        struct mtd_info *mtd = &this->mtd;
+        int ecc_strength;
+
+        ecc_strength = ((mtd->oobsize - geo->metadata_size) * 8)
+                        / (geo->gf_len * geo->ecc_chunk_count);
+
+        /* We need the minor even number. */
+        return round_down(ecc_strength, 2);
+}
+
+int common_nfc_set_geometry(struct gpmi_nand_data *this)
+{
+        struct bch_geometry *geo = &this->bch_geometry;
+        struct mtd_info *mtd = &this->mtd;
+        unsigned int metadata_size;
+        unsigned int status_size;
+        unsigned int block_mark_bit_offset;
+
+        /*
+         * The size of the metadata can be changed, though we set it to 10
+         * bytes now. But it can't be too large, because we have to save
+         * enough space for BCH.
+         */
+        geo->metadata_size = 10;
+
+        /* The default for the length of Galois Field. */
+        geo->gf_len = 13;
+
+        /* The default for chunk size. There is no oobsize greater then 512. */
+        geo->ecc_chunk_size = 512;
+        while (geo->ecc_chunk_size < mtd->oobsize)
+                geo->ecc_chunk_size *= 2; /* keep C >= O */
+
+        geo->ecc_chunk_count = mtd->writesize / geo->ecc_chunk_size;
+
+        /* We use the same ECC strength for all chunks. */
+        geo->ecc_strength = get_ecc_strength(this);
+        if (!geo->ecc_strength) {
+                pr_err("We get a wrong ECC strength.\n");
+                return -EINVAL;
+        }
+
+        geo->page_size = mtd->writesize + mtd->oobsize;
+        geo->payload_size = mtd->writesize;
+
+        /*
+         * The auxiliary buffer contains the metadata and the ECC status. The
+         * metadata is padded to the nearest 32-bit boundary. The ECC status
+         * contains one byte for every ECC chunk, and is also padded to the
+         * nearest 32-bit boundary.
+         */
+        metadata_size = ALIGN(geo->metadata_size, 4);
+        status_size   = ALIGN(geo->ecc_chunk_count, 4);
+
+        geo->auxiliary_size = metadata_size + status_size;
+        geo->auxiliary_status_offset = metadata_size;
+
+        if (!this->swap_block_mark)
+                return 0;
+
+        /*
+         * We need to compute the byte and bit offsets of
+         * the physical block mark within the ECC-based view of the page.
+         *
+         * NAND chip with 2K page shows below:
+         *                                             (Block Mark)
+         *                                                   |      |
+         *                                                   |  D   |
+         *                                                   |<---->|
+         *                                                   V      V
+         *    +---+----------+-+----------+-+----------+-+----------+-+
+         *    | M |   data   |E|   data   |E|   data   |E|   data   |E|
+         *    +---+----------+-+----------+-+----------+-+----------+-+
+         *
+         * The position of block mark moves forward in the ECC-based view
+         * of page, and the delta is:
+         *
+         *                   E * G * (N - 1)
+         *             D = (---------------- + M)
+         *                          8
+         *
+         * With the formula to compute the ECC strength, and the condition
+         *       : C >= O         (C is the ecc chunk size)
+         *
+         * It's easy to deduce to the following result:
+         *
+         *         E * G       (O - M)      C - M         C - M
+         *      ----------- <= ------- <=  --------  <  ---------
+         *           8            N           N          (N - 1)
+         *
+         *  So, we get:
+         *
+         *                   E * G * (N - 1)
+         *             D = (---------------- + M) < C
+         *                          8
+         *
+         *  The above inequality means the position of block mark
+         *  within the ECC-based view of the page is still in the data chunk,
+         *  and it's NOT in the ECC bits of the chunk.
+         *
+         *  Use the following to compute the bit position of the
+         *  physical block mark within the ECC-based view of the page:
+         *          (page_size - D) * 8
+         *
+         *  --Huang Shijie
+         */
+        block_mark_bit_offset = mtd->writesize * 8 -
+                (geo->ecc_strength * geo->gf_len * (geo->ecc_chunk_count - 1)
+                                + geo->metadata_size * 8);
+
+        geo->block_mark_byte_offset = block_mark_bit_offset / 8;
+        geo->block_mark_bit_offset  = block_mark_bit_offset % 8;
+        return 0;
+}
+
+struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
+{
+        int chipnr = this->current_chip;
+
+        return this->dma_chans[chipnr];
+}
+
+/* Can we use the upper's buffer directly for DMA? */
+void prepare_data_dma(struct gpmi_nand_data *this, enum dma_data_direction dr)
+{
+        struct scatterlist *sgl = &this->data_sgl;
+        int ret;
+
+        this->direct_dma_map_ok = true;
+
+        /* first try to map the upper buffer directly */
+        sg_init_one(sgl, this->upper_buf, this->upper_len);
+        ret = dma_map_sg(this->dev, sgl, 1, dr);
+        if (ret == 0) {
+                /* We have to use our own DMA buffer. */
+                sg_init_one(sgl, this->data_buffer_dma, PAGE_SIZE);
+
+                if (dr == DMA_TO_DEVICE)
+                        memcpy(this->data_buffer_dma, this->upper_buf,
+                                this->upper_len);
+
+                ret = dma_map_sg(this->dev, sgl, 1, dr);
+                if (ret == 0)
+                        pr_err("map failed.\n");
+
+                this->direct_dma_map_ok = false;
+        }
+}
+
+/* This will be called after the DMA operation is finished. */
+static void dma_irq_callback(void *param)
+{
+        struct gpmi_nand_data *this = param;
+        struct completion *dma_c = &this->dma_done;
+
+        complete(dma_c);
+
+        switch (this->dma_type) {
+        case DMA_FOR_COMMAND:
+                dma_unmap_sg(this->dev, &this->cmd_sgl, 1, DMA_TO_DEVICE);
+                break;
+
+        case DMA_FOR_READ_DATA:
+                dma_unmap_sg(this->dev, &this->data_sgl, 1, DMA_FROM_DEVICE);
+                if (this->direct_dma_map_ok == false)
+                        memcpy(this->upper_buf, this->data_buffer_dma,
+                                this->upper_len);
+                break;
+
+        case DMA_FOR_WRITE_DATA:
+                dma_unmap_sg(this->dev, &this->data_sgl, 1, DMA_TO_DEVICE);
+                break;
+
+        case DMA_FOR_READ_ECC_PAGE:
+        case DMA_FOR_WRITE_ECC_PAGE:
+                /* We have to wait the BCH interrupt to finish. */
+                break;
+
+        default:
+                pr_err("in wrong DMA operation.\n");
+        }
+}
+
+int start_dma_without_bch_irq(struct gpmi_nand_data *this,
+                                struct dma_async_tx_descriptor *desc)
+{
+        struct completion *dma_c = &this->dma_done;
+        int err;
+
+        init_completion(dma_c);
+
+        desc->callback          = dma_irq_callback;
+        desc->callback_param    = this;
+        dmaengine_submit(desc);
+
+        /* Wait for the interrupt from the DMA block. */
+        err = wait_for_completion_timeout(dma_c, msecs_to_jiffies(1000));
+        if (!err) {
+                pr_err("DMA timeout, last DMA :%d\n", this->last_dma_type);
+                gpmi_dump_info(this);
+                return -ETIMEDOUT;
+        }
+        return 0;
+}
+
+/*
+ * This function is used in BCH reading or BCH writing pages.
+ * It will wait for the BCH interrupt as long as ONE second.
+ * Actually, we must wait for two interrupts :
+ *      [1] firstly the DMA interrupt and
+ *      [2] secondly the BCH interrupt.
+ */
+int start_dma_with_bch_irq(struct gpmi_nand_data *this,
+                        struct dma_async_tx_descriptor *desc)
+{
+        struct completion *bch_c = &this->bch_done;
+        int err;
+
+        /* Prepare to receive an interrupt from the BCH block. */
+        init_completion(bch_c);
+
+        /* start the DMA */
+        start_dma_without_bch_irq(this, desc);
+
+        /* Wait for the interrupt from the BCH block. */
+        err = wait_for_completion_timeout(bch_c, msecs_to_jiffies(1000));
+        if (!err) {
+                pr_err("BCH timeout, last DMA :%d\n", this->last_dma_type);
+                gpmi_dump_info(this);
+                return -ETIMEDOUT;
+        }
+        return 0;
+}
+
+static int __devinit
+acquire_register_block(struct gpmi_nand_data *this, const char *res_name)
+{
+        struct platform_device *pdev = this->pdev;
+        struct resources *res = &this->resources;
+        struct resource *r;
+        void *p;
+
+        r = platform_get_resource_byname(pdev, IORESOURCE_MEM, res_name);
+        if (!r) {
+                pr_err("Can't get resource for %s\n", res_name);
+                return -ENXIO;
+        }
+
+        p = ioremap(r->start, resource_size(r));
+        if (!p) {
+                pr_err("Can't remap %s\n", res_name);
+                return -ENOMEM;
+        }
+
+        if (!strcmp(res_name, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME))
+                res->gpmi_regs = p;
+        else if (!strcmp(res_name, GPMI_NAND_BCH_REGS_ADDR_RES_NAME))
+                res->bch_regs = p;
+        else
+                pr_err("unknown resource name : %s\n", res_name);
+
+        return 0;
+}
+
+static void release_register_block(struct gpmi_nand_data *this)
+{
+        struct resources *res = &this->resources;
+        if (res->gpmi_regs)
+                iounmap(res->gpmi_regs);
+        if (res->bch_regs)
+                iounmap(res->bch_regs);
+        res->gpmi_regs = NULL;
+        res->bch_regs = NULL;
+}
+
+static int __devinit
+acquire_bch_irq(struct gpmi_nand_data *this, irq_handler_t irq_h)
+{
+        struct platform_device *pdev = this->pdev;
+        struct resources *res = &this->resources;
+        const char *res_name = GPMI_NAND_BCH_INTERRUPT_RES_NAME;
+        struct resource *r;
+        int err;
+
+        r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, res_name);
+        if (!r) {
+                pr_err("Can't get resource for %s\n", res_name);
+                return -ENXIO;
+        }
+
+        err = request_irq(r->start, irq_h, 0, res_name, this);
+        if (err) {
+                pr_err("Can't own %s\n", res_name);
+                return err;
+        }
+
+        res->bch_low_interrupt = r->start;
+        res->bch_high_interrupt = r->end;
+        return 0;
+}
+
+static void release_bch_irq(struct gpmi_nand_data *this)
+{
+        struct resources *res = &this->resources;
+        int i = res->bch_low_interrupt;
+
+        for (; i <= res->bch_high_interrupt; i++)
+                free_irq(i, this);
+}
+
+static bool gpmi_dma_filter(struct dma_chan *chan, void *param)
+{
+        struct gpmi_nand_data *this = param;
+        struct resource *r = this->private;
+
+        if (!mxs_dma_is_apbh(chan))
+                return false;
+        /*
+         * only catch the GPMI dma channels :
+         *      for mx23 :      MX23_DMA_GPMI0 ~ MX23_DMA_GPMI3
+         *              (These four channels share the same IRQ!)
+         *
+         *      for mx28 :      MX28_DMA_GPMI0 ~ MX28_DMA_GPMI7
+         *              (These eight channels share the same IRQ!)
+         */
+        if (r->start <= chan->chan_id && chan->chan_id <= r->end) {
+                chan->private = &this->dma_data;
+                return true;
+        }
+        return false;
+}
+
+static void release_dma_channels(struct gpmi_nand_data *this)
+{
+        unsigned int i;
+        for (i = 0; i < DMA_CHANS; i++)
+                if (this->dma_chans[i]) {
+                        dma_release_channel(this->dma_chans[i]);
+                        this->dma_chans[i] = NULL;
+                }
+}
+
+static int __devinit acquire_dma_channels(struct gpmi_nand_data *this)
+{
+        struct platform_device *pdev = this->pdev;
+        struct gpmi_nand_platform_data *pdata = this->pdata;
+        struct resources *res = &this->resources;
+        struct resource *r, *r_dma;
+        unsigned int i;
+
+        r = platform_get_resource_byname(pdev, IORESOURCE_DMA,
+                                        GPMI_NAND_DMA_CHANNELS_RES_NAME);
+        r_dma = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+                                        GPMI_NAND_DMA_INTERRUPT_RES_NAME);
+        if (!r || !r_dma) {
+                pr_err("Can't get resource for DMA\n");
+                return -ENXIO;
+        }
+
+        /* used in gpmi_dma_filter() */
+        this->private = r;
+
+        for (i = r->start; i <= r->end; i++) {
+                struct dma_chan *dma_chan;
+                dma_cap_mask_t mask;
+
+                if (i - r->start >= pdata->max_chip_count)
+                        break;
+
+                dma_cap_zero(mask);
+                dma_cap_set(DMA_SLAVE, mask);
+
+                /* get the DMA interrupt */
+                if (r_dma->start == r_dma->end) {
+                        /* only register the first. */
+                        if (i == r->start)
+                                this->dma_data.chan_irq = r_dma->start;
+                        else
+                                this->dma_data.chan_irq = NO_IRQ;
+                } else
+                        this->dma_data.chan_irq = r_dma->start + (i - r->start);
+
+                dma_chan = dma_request_channel(mask, gpmi_dma_filter, this);
+                if (!dma_chan)
+                        goto acquire_err;
+
+                /* fill the first empty item */
+                this->dma_chans[i - r->start] = dma_chan;
+        }
+
+        res->dma_low_channel = r->start;
+        res->dma_high_channel = i;
+        return 0;
+
+acquire_err:
+        pr_err("Can't acquire DMA channel %u\n", i);
+        release_dma_channels(this);
+        return -EINVAL;
+}
+
+static int __devinit acquire_resources(struct gpmi_nand_data *this)
+{
+        struct resources *res = &this->resources;
+        int ret;
+
+        ret = acquire_register_block(this, GPMI_NAND_GPMI_REGS_ADDR_RES_NAME);
+        if (ret)
+                goto exit_regs;
+
+        ret = acquire_register_block(this, GPMI_NAND_BCH_REGS_ADDR_RES_NAME);
+        if (ret)
+                goto exit_regs;
+
+        ret = acquire_bch_irq(this, bch_irq);
+        if (ret)
+                goto exit_regs;
+
+        ret = acquire_dma_channels(this);
+        if (ret)
+                goto exit_dma_channels;
+
+        res->clock = clk_get(&this->pdev->dev, NULL);
+        if (IS_ERR(res->clock)) {
+                pr_err("can not get the clock\n");
+                ret = -ENOENT;
+                goto exit_clock;
+        }
+        return 0;
+
+exit_clock:
+        release_dma_channels(this);
+exit_dma_channels:
+        release_bch_irq(this);
+exit_regs:
+        release_register_block(this);
+        return ret;
+}
+
+static void release_resources(struct gpmi_nand_data *this)
+{
+        struct resources *r = &this->resources;
+
+        clk_put(r->clock);
+        release_register_block(this);
+        release_bch_irq(this);
+        release_dma_channels(this);
+}
+
+static int __devinit init_hardware(struct gpmi_nand_data *this)
+{
+        int ret;
+
+        /*
+         * This structure contains the "safe" GPMI timing that should succeed
+         * with any NAND Flash device
+         * (although, with less-than-optimal performance).
+         */
+        struct nand_timing  safe_timing = {
+                .data_setup_in_ns        = 80,
+                .data_hold_in_ns         = 60,
+                .address_setup_in_ns     = 25,
+                .gpmi_sample_delay_in_ns =  6,
+                .tREA_in_ns              = -1,
+                .tRLOH_in_ns             = -1,
+                .tRHOH_in_ns             = -1,
+        };
+
+        /* Initialize the hardwares. */
+        ret = gpmi_init(this);
+        if (ret)
+                return ret;
+
+        this->timing = safe_timing;
+        return 0;
+}
+
+static int read_page_prepare(struct gpmi_nand_data *this,
+                        void *destination, unsigned length,
+                        void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+                        void **use_virt, dma_addr_t *use_phys)
+{
+        struct device *dev = this->dev;
+
+        if (virt_addr_valid(destination)) {
+                dma_addr_t dest_phys;
+
+                dest_phys = dma_map_single(dev, destination,
+                                                length, DMA_FROM_DEVICE);
+                if (dma_mapping_error(dev, dest_phys)) {
+                        if (alt_size < length) {
+                                pr_err("Alternate buffer is too small\n");
+                                return -ENOMEM;
+                        }
+                        goto map_failed;
+                }
+                *use_virt = destination;
+                *use_phys = dest_phys;
+                this->direct_dma_map_ok = true;
+                return 0;
+        }
+
+map_failed:
+        *use_virt = alt_virt;
+        *use_phys = alt_phys;
+        this->direct_dma_map_ok = false;
+        return 0;
+}
+
+static inline void read_page_end(struct gpmi_nand_data *this,
+                        void *destination, unsigned length,
+                        void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+                        void *used_virt, dma_addr_t used_phys)
+{
+        if (this->direct_dma_map_ok)
+                dma_unmap_single(this->dev, used_phys, length, DMA_FROM_DEVICE);
+}
+
+static inline void read_page_swap_end(struct gpmi_nand_data *this,
+                        void *destination, unsigned length,
+                        void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+                        void *used_virt, dma_addr_t used_phys)
+{
+        if (!this->direct_dma_map_ok)
+                memcpy(destination, alt_virt, length);
+}
+
+static int send_page_prepare(struct gpmi_nand_data *this,
+                        const void *source, unsigned length,
+                        void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+                        const void **use_virt, dma_addr_t *use_phys)
+{
+        struct device *dev = this->dev;
+
+        if (virt_addr_valid(source)) {
+                dma_addr_t source_phys;
+
+                source_phys = dma_map_single(dev, (void *)source, length,
+                                                DMA_TO_DEVICE);
+                if (dma_mapping_error(dev, source_phys)) {
+                        if (alt_size < length) {
+                                pr_err("Alternate buffer is too small\n");
+                                return -ENOMEM;
+                        }
+                        goto map_failed;
+                }
+                *use_virt = source;
+                *use_phys = source_phys;
+                return 0;
+        }
+map_failed:
+        /*
+         * Copy the content of the source buffer into the alternate
+         * buffer and set up the return values accordingly.
+         */
+        memcpy(alt_virt, source, length);
+
+        *use_virt = alt_virt;
+        *use_phys = alt_phys;
+        return 0;
+}
+
+static void send_page_end(struct gpmi_nand_data *this,
+                        const void *source, unsigned length,
+                        void *alt_virt, dma_addr_t alt_phys, unsigned alt_size,
+                        const void *used_virt, dma_addr_t used_phys)
+{
+        struct device *dev = this->dev;
+        if (used_virt == source)
+                dma_unmap_single(dev, used_phys, length, DMA_TO_DEVICE);
+}
+
+static void gpmi_free_dma_buffer(struct gpmi_nand_data *this)
+{
+        struct device *dev = this->dev;
+
+        if (this->page_buffer_virt && virt_addr_valid(this->page_buffer_virt))
+                dma_free_coherent(dev, this->page_buffer_size,
+                                        this->page_buffer_virt,
+                                        this->page_buffer_phys);
+        kfree(this->cmd_buffer);
+        kfree(this->data_buffer_dma);
+
+        this->cmd_buffer        = NULL;
+        this->data_buffer_dma   = NULL;
+        this->page_buffer_virt  = NULL;
+        this->page_buffer_size  =  0;
+}
+
+/* Allocate the DMA buffers */
+static int gpmi_alloc_dma_buffer(struct gpmi_nand_data *this)
+{
+        struct bch_geometry *geo = &this->bch_geometry;
+        struct device *dev = this->dev;
+
+        /* [1] Allocate a command buffer. PAGE_SIZE is enough. */
+        this->cmd_buffer = kzalloc(PAGE_SIZE, GFP_DMA);
+        if (this->cmd_buffer == NULL)
+                goto error_alloc;
+
+        /* [2] Allocate a read/write data buffer. PAGE_SIZE is enough. */
+        this->data_buffer_dma = kzalloc(PAGE_SIZE, GFP_DMA);
+        if (this->data_buffer_dma == NULL)
+                goto error_alloc;
+
+        /*
+         * [3] Allocate the page buffer.
+         *
+         * Both the payload buffer and the auxiliary buffer must appear on
+         * 32-bit boundaries. We presume the size of the payload buffer is a
+         * power of two and is much larger than four, which guarantees the
+         * auxiliary buffer will appear on a 32-bit boundary.
+         */
+        this->page_buffer_size = geo->payload_size + geo->auxiliary_size;
+        this->page_buffer_virt = dma_alloc_coherent(dev, this->page_buffer_size,
+                                        &this->page_buffer_phys, GFP_DMA);
+        if (!this->page_buffer_virt)
+                goto error_alloc;
+
+
+        /* Slice up the page buffer. */
+        this->payload_virt = this->page_buffer_virt;
+        this->payload_phys = this->page_buffer_phys;
+        this->auxiliary_virt = this->payload_virt + geo->payload_size;
+        this->auxiliary_phys = this->payload_phys + geo->payload_size;
+        return 0;
+
+error_alloc:
+        gpmi_free_dma_buffer(this);
+        pr_err("allocate DMA buffer ret!!\n");
+        return -ENOMEM;
+}
+
+static void gpmi_cmd_ctrl(struct mtd_info *mtd, int data, unsigned int ctrl)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+        int ret;
+
+        /*
+         * Every operation begins with a command byte and a series of zero or
+         * more address bytes. These are distinguished by either the Address
+         * Latch Enable (ALE) or Command Latch Enable (CLE) signals being
+         * asserted. When MTD is ready to execute the command, it will deassert
+         * both latch enables.
+         *
+         * Rather than run a separate DMA operation for every single byte, we
+         * queue them up and run a single DMA operation for the entire series
+         * of command and data bytes. NAND_CMD_NONE means the END of the queue.
+         */
+        if ((ctrl & (NAND_ALE | NAND_CLE))) {
+                if (data != NAND_CMD_NONE)
+                        this->cmd_buffer[this->command_length++] = data;
+                return;
+        }
+
+        if (!this->command_length)
+                return;
+
+        ret = gpmi_send_command(this);
+        if (ret)
+                pr_err("Chip: %u, Error %d\n", this->current_chip, ret);
+
+        this->command_length = 0;
+}
+
+static int gpmi_dev_ready(struct mtd_info *mtd)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+
+        return gpmi_is_ready(this, this->current_chip);
+}
+
+static void gpmi_select_chip(struct mtd_info *mtd, int chipnr)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+
+        if ((this->current_chip < 0) && (chipnr >= 0))
+                gpmi_begin(this);
+        else if ((this->current_chip >= 0) && (chipnr < 0))
+                gpmi_end(this);
+
+        this->current_chip = chipnr;
+}
+
+static void gpmi_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+
+        pr_debug("len is %d\n", len);
+        this->upper_buf = buf;
+        this->upper_len = len;
+
+        gpmi_read_data(this);
+}
+
+static void gpmi_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+
+        pr_debug("len is %d\n", len);
+        this->upper_buf = (uint8_t *)buf;
+        this->upper_len = len;
+
+        gpmi_send_data(this);
+}
+
+static uint8_t gpmi_read_byte(struct mtd_info *mtd)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+        uint8_t *buf = this->data_buffer_dma;
+
+        gpmi_read_buf(mtd, buf, 1);
+        return buf[0];
+}
+
+/*
+ * Handles block mark swapping.
+ * It can be called in swapping the block mark, or swapping it back,
+ * because the the operations are the same.
+ */
+static void block_mark_swapping(struct gpmi_nand_data *this,
+                                void *payload, void *auxiliary)
+{
+        struct bch_geometry *nfc_geo = &this->bch_geometry;
+        unsigned char *p;
+        unsigned char *a;
+        unsigned int  bit;
+        unsigned char mask;
+        unsigned char from_data;
+        unsigned char from_oob;
+
+        if (!this->swap_block_mark)
+                return;
+
+        /*
+         * If control arrives here, we're swapping. Make some convenience
+         * variables.
+         */
+        bit = nfc_geo->block_mark_bit_offset;
+        p   = payload + nfc_geo->block_mark_byte_offset;
+        a   = auxiliary;
+
+        /*
+         * Get the byte from the data area that overlays the block mark. Since
+         * the ECC engine applies its own view to the bits in the page, the
+         * physical block mark won't (in general) appear on a byte boundary in
+         * the data.
+         */
+        from_data = (p[0] >> bit) | (p[1] << (8 - bit));
+
+        /* Get the byte from the OOB. */
+        from_oob = a[0];
+
+        /* Swap them. */
+        a[0] = from_data;
+
+        mask = (0x1 << bit) - 1;
+        p[0] = (p[0] & mask) | (from_oob << bit);
+
+        mask = ~0 << bit;
+        p[1] = (p[1] & mask) | (from_oob >> (8 - bit));
+}
+
+static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip,
+                                uint8_t *buf, int page)
+{
+        struct gpmi_nand_data *this = chip->priv;
+        struct bch_geometry *nfc_geo = &this->bch_geometry;
+        void          *payload_virt;
+        dma_addr_t    payload_phys;
+        void          *auxiliary_virt;
+        dma_addr_t    auxiliary_phys;
+        unsigned int  i;
+        unsigned char *status;
+        unsigned int  failed;
+        unsigned int  corrected;
+        int           ret;
+
+        pr_debug("page number is : %d\n", page);
+        ret = read_page_prepare(this, buf, mtd->writesize,
+                                        this->payload_virt, this->payload_phys,
+                                        nfc_geo->payload_size,
+                                        &payload_virt, &payload_phys);
+        if (ret) {
+                pr_err("Inadequate DMA buffer\n");
+                ret = -ENOMEM;
+                return ret;
+        }
+        auxiliary_virt = this->auxiliary_virt;
+        auxiliary_phys = this->auxiliary_phys;
+
+        /* go! */
+        ret = gpmi_read_page(this, payload_phys, auxiliary_phys);
+        read_page_end(this, buf, mtd->writesize,
+                        this->payload_virt, this->payload_phys,
+                        nfc_geo->payload_size,
+                        payload_virt, payload_phys);
+        if (ret) {
+                pr_err("Error in ECC-based read: %d\n", ret);
+                goto exit_nfc;
+        }
+
+        /* handle the block mark swapping */
+        block_mark_swapping(this, payload_virt, auxiliary_virt);
+
+        /* Loop over status bytes, accumulating ECC status. */
+        failed          = 0;
+        corrected       = 0;
+        status          = auxiliary_virt + nfc_geo->auxiliary_status_offset;
+
+        for (i = 0; i < nfc_geo->ecc_chunk_count; i++, status++) {
+                if ((*status == STATUS_GOOD) || (*status == STATUS_ERASED))
+                        continue;
+
+                if (*status == STATUS_UNCORRECTABLE) {
+                        failed++;
+                        continue;
+                }
+                corrected += *status;
+        }
+
+        /*
+         * Propagate ECC status to the owning MTD only when failed or
+         * corrected times nearly reaches our ECC correction threshold.
+         */
+        if (failed || corrected >= (nfc_geo->ecc_strength - 1)) {
+                mtd->ecc_stats.failed    += failed;
+                mtd->ecc_stats.corrected += corrected;
+        }
+
+        /*
+         * It's time to deliver the OOB bytes. See gpmi_ecc_read_oob() for
+         * details about our policy for delivering the OOB.
+         *
+         * We fill the caller's buffer with set bits, and then copy the block
+         * mark to th caller's buffer. Note that, if block mark swapping was
+         * necessary, it has already been done, so we can rely on the first
+         * byte of the auxiliary buffer to contain the block mark.
+         */
+        memset(chip->oob_poi, ~0, mtd->oobsize);
+        chip->oob_poi[0] = ((uint8_t *) auxiliary_virt)[0];
+
+        read_page_swap_end(this, buf, mtd->writesize,
+                        this->payload_virt, this->payload_phys,
+                        nfc_geo->payload_size,
+                        payload_virt, payload_phys);
+exit_nfc:
+        return ret;
+}
+
+static void gpmi_ecc_write_page(struct mtd_info *mtd,
+                                struct nand_chip *chip, const uint8_t *buf)
+{
+        struct gpmi_nand_data *this = chip->priv;
+        struct bch_geometry *nfc_geo = &this->bch_geometry;
+        const void *payload_virt;
+        dma_addr_t payload_phys;
+        const void *auxiliary_virt;
+        dma_addr_t auxiliary_phys;
+        int        ret;
+
+        pr_debug("ecc write page.\n");
+        if (this->swap_block_mark) {
+                /*
+                 * If control arrives here, we're doing block mark swapping.
+                 * Since we can't modify the caller's buffers, we must copy them
+                 * into our own.
+                 */
+                memcpy(this->payload_virt, buf, mtd->writesize);
+                payload_virt = this->payload_virt;
+                payload_phys = this->payload_phys;
+
+                memcpy(this->auxiliary_virt, chip->oob_poi,
+                                nfc_geo->auxiliary_size);
+                auxiliary_virt = this->auxiliary_virt;
+                auxiliary_phys = this->auxiliary_phys;
+
+                /* Handle block mark swapping. */
+                block_mark_swapping(this,
+                                (void *) payload_virt, (void *) auxiliary_virt);
+        } else {
+                /*
+                 * If control arrives here, we're not doing block mark swapping,
+                 * so we can to try and use the caller's buffers.
+                 */
+                ret = send_page_prepare(this,
+                                buf, mtd->writesize,
+                                this->payload_virt, this->payload_phys,
+                                nfc_geo->payload_size,
+                                &payload_virt, &payload_phys);
+                if (ret) {
+                        pr_err("Inadequate payload DMA buffer\n");
+                        return;
+                }
+
+                ret = send_page_prepare(this,
+                                chip->oob_poi, mtd->oobsize,
+                                this->auxiliary_virt, this->auxiliary_phys,
+                                nfc_geo->auxiliary_size,
+                                &auxiliary_virt, &auxiliary_phys);
+                if (ret) {
+                        pr_err("Inadequate auxiliary DMA buffer\n");
+                        goto exit_auxiliary;
+                }
+        }
+
+        /* Ask the NFC. */
+        ret = gpmi_send_page(this, payload_phys, auxiliary_phys);
+        if (ret)
+                pr_err("Error in ECC-based write: %d\n", ret);
+
+        if (!this->swap_block_mark) {
+                send_page_end(this, chip->oob_poi, mtd->oobsize,
+                                this->auxiliary_virt, this->auxiliary_phys,
+                                nfc_geo->auxiliary_size,
+                                auxiliary_virt, auxiliary_phys);
+exit_auxiliary:
+                send_page_end(this, buf, mtd->writesize,
+                                this->payload_virt, this->payload_phys,
+                                nfc_geo->payload_size,
+                                payload_virt, payload_phys);
+        }
+}
+
+/*
+ * There are several places in this driver where we have to handle the OOB and
+ * block marks. This is the function where things are the most complicated, so
+ * this is where we try to explain it all. All the other places refer back to
+ * here.
+ *
+ * These are the rules, in order of decreasing importance:
+ *
+ * 1) Nothing the caller does can be allowed to imperil the block mark.
+ *
+ * 2) In read operations, the first byte of the OOB we return must reflect the
+ *    true state of the block mark, no matter where that block mark appears in
+ *    the physical page.
+ *
+ * 3) ECC-based read operations return an OOB full of set bits (since we never
+ *    allow ECC-based writes to the OOB, it doesn't matter what ECC-based reads
+ *    return).
+ *
+ * 4) "Raw" read operations return a direct view of the physical bytes in the
+ *    page, using the conventional definition of which bytes are data and which
+ *    are OOB. This gives the caller a way to see the actual, physical bytes
+ *    in the page, without the distortions applied by our ECC engine.
+ *
+ *
+ * What we do for this specific read operation depends on two questions:
+ *
+ * 1) Are we doing a "raw" read, or an ECC-based read?
+ *
+ * 2) Are we using block mark swapping or transcription?
+ *
+ * There are four cases, illustrated by the following Karnaugh map:
+ *
+ *                    |           Raw           |         ECC-based       |
+ *       -------------+-------------------------+-------------------------+
+ *                    | Read the conventional   |                         |
+ *                    | OOB at the end of the   |                         |
+ *       Swapping     | page and return it. It  |                         |
+ *                    | contains exactly what   |                         |
+ *                    | we want.                | Read the block mark and |
+ *       -------------+-------------------------+ return it in a buffer   |
+ *                    | Read the conventional   | full of set bits.       |
+ *                    | OOB at the end of the   |                         |
+ *                    | page and also the block |                         |
+ *       Transcribing | mark in the metadata.   |                         |
+ *                    | Copy the block mark     |                         |
+ *                    | into the first byte of  |                         |
+ *                    | the OOB.                |                         |
+ *       -------------+-------------------------+-------------------------+
+ *
+ * Note that we break rule #4 in the Transcribing/Raw case because we're not
+ * giving an accurate view of the actual, physical bytes in the page (we're
+ * overwriting the block mark). That's OK because it's more important to follow
+ * rule #2.
+ *
+ * It turns out that knowing whether we want an "ECC-based" or "raw" read is not
+ * easy. When reading a page, for example, the NAND Flash MTD code calls our
+ * ecc.read_page or ecc.read_page_raw function. Thus, the fact that MTD wants an
+ * ECC-based or raw view of the page is implicit in which function it calls
+ * (there is a similar pair of ECC-based/raw functions for writing).
+ *
+ * Since MTD assumes the OOB is not covered by ECC, there is no pair of
+ * ECC-based/raw functions for reading or or writing the OOB. The fact that the
+ * caller wants an ECC-based or raw view of the page is not propagated down to
+ * this driver.
+ */
+static int gpmi_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
+                                int page, int sndcmd)
+{
+        struct gpmi_nand_data *this = chip->priv;
+
+        pr_debug("page number is %d\n", page);
+        /* clear the OOB buffer */
+        memset(chip->oob_poi, ~0, mtd->oobsize);
+
+        /* Read out the conventional OOB. */
+        chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
+        chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+        /*
+         * Now, we want to make sure the block mark is correct. In the
+         * Swapping/Raw case, we already have it. Otherwise, we need to
+         * explicitly read it.
+         */
+        if (!this->swap_block_mark) {
+                /* Read the block mark into the first byte of the OOB buffer. */
+                chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
+                chip->oob_poi[0] = chip->read_byte(mtd);
+        }
+
+        /*
+         * Return true, indicating that the next call to this function must send
+         * a command.
+         */
+        return true;
+}
+
+static int
+gpmi_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *chip, int page)
+{
+        /*
+         * The BCH will use all the (page + oob).
+         * Our gpmi_hw_ecclayout can only prohibit the JFFS2 to write the oob.
+         * But it can not stop some ioctls such MEMWRITEOOB which uses
+         * MTD_OPS_PLACE_OOB. So We have to implement this function to prohibit
+         * these ioctls too.
+         */
+        return -EPERM;
+}
+
+static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+        int block, ret = 0;
+        uint8_t *block_mark;
+        int column, page, status, chipnr;
+
+        /* Get block number */
+        block = (int)(ofs >> chip->bbt_erase_shift);
+        if (chip->bbt)
+                chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
+
+        /* Do we have a flash based bad block table ? */
+        if (chip->options & NAND_BBT_USE_FLASH)
+                ret = nand_update_bbt(mtd, ofs);
+        else {
+                chipnr = (int)(ofs >> chip->chip_shift);
+                chip->select_chip(mtd, chipnr);
+
+                column = this->swap_block_mark ? mtd->writesize : 0;
+
+                /* Write the block mark. */
+                block_mark = this->data_buffer_dma;
+                block_mark[0] = 0; /* bad block marker */
+
+                /* Shift to get page */
+                page = (int)(ofs >> chip->page_shift);
+
+                chip->cmdfunc(mtd, NAND_CMD_SEQIN, column, page);
+                chip->write_buf(mtd, block_mark, 1);
+                chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+                status = chip->waitfunc(mtd, chip);
+                if (status & NAND_STATUS_FAIL)
+                        ret = -EIO;
+
+                chip->select_chip(mtd, -1);
+        }
+        if (!ret)
+                mtd->ecc_stats.badblocks++;
+
+        return ret;
+}
+
+static int __devinit nand_boot_set_geometry(struct gpmi_nand_data *this)
+{
+        struct boot_rom_geometry *geometry = &this->rom_geometry;
+
+        /*
+         * Set the boot block stride size.
+         *
+         * In principle, we should be reading this from the OTP bits, since
+         * that's where the ROM is going to get it. In fact, we don't have any
+         * way to read the OTP bits, so we go with the default and hope for the
+         * best.
+         */
+        geometry->stride_size_in_pages = 64;
+
+        /*
+         * Set the search area stride exponent.
+         *
+         * In principle, we should be reading this from the OTP bits, since
+         * that's where the ROM is going to get it. In fact, we don't have any
+         * way to read the OTP bits, so we go with the default and hope for the
+         * best.
+         */
+        geometry->search_area_stride_exponent = 2;
+        return 0;
+}
+
+static const char  *fingerprint = "STMP";
+static int __devinit mx23_check_transcription_stamp(struct gpmi_nand_data *this)
+{
+        struct boot_rom_geometry *rom_geo = &this->rom_geometry;
+        struct device *dev = this->dev;
+        struct mtd_info *mtd = &this->mtd;
+        struct nand_chip *chip = &this->nand;
+        unsigned int search_area_size_in_strides;
+        unsigned int stride;
+        unsigned int page;
+        loff_t byte;
+        uint8_t *buffer = chip->buffers->databuf;
+        int saved_chip_number;
+        int found_an_ncb_fingerprint = false;
+
+        /* Compute the number of strides in a search area. */
+        search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent;
+
+        saved_chip_number = this->current_chip;
+        chip->select_chip(mtd, 0);
+
+        /*
+         * Loop through the first search area, looking for the NCB fingerprint.
+         */
+        dev_dbg(dev, "Scanning for an NCB fingerprint...\n");
+
+        for (stride = 0; stride < search_area_size_in_strides; stride++) {
+                /* Compute the page and byte addresses. */
+                page = stride * rom_geo->stride_size_in_pages;
+                byte = page   * mtd->writesize;
+
+                dev_dbg(dev, "Looking for a fingerprint in page 0x%x\n", page);
+
+                /*
+                 * Read the NCB fingerprint. The fingerprint is four bytes long
+                 * and starts in the 12th byte of the page.
+                 */
+                chip->cmdfunc(mtd, NAND_CMD_READ0, 12, page);
+                chip->read_buf(mtd, buffer, strlen(fingerprint));
+
+                /* Look for the fingerprint. */
+                if (!memcmp(buffer, fingerprint, strlen(fingerprint))) {
+                        found_an_ncb_fingerprint = true;
+                        break;
+                }
+
+        }
+
+        chip->select_chip(mtd, saved_chip_number);
+
+        if (found_an_ncb_fingerprint)
+                dev_dbg(dev, "\tFound a fingerprint\n");
+        else
+                dev_dbg(dev, "\tNo fingerprint found\n");
+        return found_an_ncb_fingerprint;
+}
+
+/* Writes a transcription stamp. */
+static int __devinit mx23_write_transcription_stamp(struct gpmi_nand_data *this)
+{
+        struct device *dev = this->dev;
+        struct boot_rom_geometry *rom_geo = &this->rom_geometry;
+        struct mtd_info *mtd = &this->mtd;
+        struct nand_chip *chip = &this->nand;
+        unsigned int block_size_in_pages;
+        unsigned int search_area_size_in_strides;
+        unsigned int search_area_size_in_pages;
+        unsigned int search_area_size_in_blocks;
+        unsigned int block;
+        unsigned int stride;
+        unsigned int page;
+        loff_t       byte;
+        uint8_t      *buffer = chip->buffers->databuf;
+        int saved_chip_number;
+        int status;
+
+        /* Compute the search area geometry. */
+        block_size_in_pages = mtd->erasesize / mtd->writesize;
+        search_area_size_in_strides = 1 << rom_geo->search_area_stride_exponent;
+        search_area_size_in_pages = search_area_size_in_strides *
+                                        rom_geo->stride_size_in_pages;
+        search_area_size_in_blocks =
+                  (search_area_size_in_pages + (block_size_in_pages - 1)) /
+                                    block_size_in_pages;
+
+        dev_dbg(dev, "Search Area Geometry :\n");
+        dev_dbg(dev, "\tin Blocks : %u\n", search_area_size_in_blocks);
+        dev_dbg(dev, "\tin Strides: %u\n", search_area_size_in_strides);
+        dev_dbg(dev, "\tin Pages  : %u\n", search_area_size_in_pages);
+
+        /* Select chip 0. */
+        saved_chip_number = this->current_chip;
+        chip->select_chip(mtd, 0);
+
+        /* Loop over blocks in the first search area, erasing them. */
+        dev_dbg(dev, "Erasing the search area...\n");
+
+        for (block = 0; block < search_area_size_in_blocks; block++) {
+                /* Compute the page address. */
+                page = block * block_size_in_pages;
+
+                /* Erase this block. */
+                dev_dbg(dev, "\tErasing block 0x%x\n", block);
+                chip->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+                chip->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
+
+                /* Wait for the erase to finish. */
+                status = chip->waitfunc(mtd, chip);
+                if (status & NAND_STATUS_FAIL)
+                        dev_err(dev, "[%s] Erase failed.\n", __func__);
+        }
+
+        /* Write the NCB fingerprint into the page buffer. */
+        memset(buffer, ~0, mtd->writesize);
+        memset(chip->oob_poi, ~0, mtd->oobsize);
+        memcpy(buffer + 12, fingerprint, strlen(fingerprint));
+
+        /* Loop through the first search area, writing NCB fingerprints. */
+        dev_dbg(dev, "Writing NCB fingerprints...\n");
+        for (stride = 0; stride < search_area_size_in_strides; stride++) {
+                /* Compute the page and byte addresses. */
+                page = stride * rom_geo->stride_size_in_pages;
+                byte = page   * mtd->writesize;
+
+                /* Write the first page of the current stride. */
+                dev_dbg(dev, "Writing an NCB fingerprint in page 0x%x\n", page);
+                chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
+                chip->ecc.write_page_raw(mtd, chip, buffer);
+                chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+                /* Wait for the write to finish. */
+                status = chip->waitfunc(mtd, chip);
+                if (status & NAND_STATUS_FAIL)
+                        dev_err(dev, "[%s] Write failed.\n", __func__);
+        }
+
+        /* Deselect chip 0. */
+        chip->select_chip(mtd, saved_chip_number);
+        return 0;
+}
+
+static int __devinit mx23_boot_init(struct gpmi_nand_data  *this)
+{
+        struct device *dev = this->dev;
+        struct nand_chip *chip = &this->nand;
+        struct mtd_info *mtd = &this->mtd;
+        unsigned int block_count;
+        unsigned int block;
+        int     chipnr;
+        int     page;
+        loff_t  byte;
+        uint8_t block_mark;
+        int     ret = 0;
+
+        /*
+         * If control arrives here, we can't use block mark swapping, which
+         * means we're forced to use transcription. First, scan for the
+         * transcription stamp. If we find it, then we don't have to do
+         * anything -- the block marks are already transcribed.
+         */
+        if (mx23_check_transcription_stamp(this))
+                return 0;
+
+        /*
+         * If control arrives here, we couldn't find a transcription stamp, so
+         * so we presume the block marks are in the conventional location.
+         */
+        dev_dbg(dev, "Transcribing bad block marks...\n");
+
+        /* Compute the number of blocks in the entire medium. */
+        block_count = chip->chipsize >> chip->phys_erase_shift;
+
+        /*
+         * Loop over all the blocks in the medium, transcribing block marks as
+         * we go.
+         */
+        for (block = 0; block < block_count; block++) {
+                /*
+                 * Compute the chip, page and byte addresses for this block's
+                 * conventional mark.
+                 */
+                chipnr = block >> (chip->chip_shift - chip->phys_erase_shift);
+                page = block << (chip->phys_erase_shift - chip->page_shift);
+                byte = block <<  chip->phys_erase_shift;
+
+                /* Send the command to read the conventional block mark. */
+                chip->select_chip(mtd, chipnr);
+                chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
+                block_mark = chip->read_byte(mtd);
+                chip->select_chip(mtd, -1);
+
+                /*
+                 * Check if the block is marked bad. If so, we need to mark it
+                 * again, but this time the result will be a mark in the
+                 * location where we transcribe block marks.
+                 */
+                if (block_mark != 0xff) {
+                        dev_dbg(dev, "Transcribing mark in block %u\n", block);
+                        ret = chip->block_markbad(mtd, byte);
+                        if (ret)
+                                dev_err(dev, "Failed to mark block bad with "
+                                                        "ret %d\n", ret);
+                }
+        }
+
+        /* Write the stamp that indicates we've transcribed the block marks. */
+        mx23_write_transcription_stamp(this);
+        return 0;
+}
+
+static int __devinit nand_boot_init(struct gpmi_nand_data  *this)
+{
+        nand_boot_set_geometry(this);
+
+        /* This is ROM arch-specific initilization before the BBT scanning. */
+        if (GPMI_IS_MX23(this))
+                return mx23_boot_init(this);
+        return 0;
+}
+
+static int __devinit gpmi_set_geometry(struct gpmi_nand_data *this)
+{
+        int ret;
+
+        /* Free the temporary DMA memory for reading ID. */
+        gpmi_free_dma_buffer(this);
+
+        /* Set up the NFC geometry which is used by BCH. */
+        ret = bch_set_geometry(this);
+        if (ret) {
+                pr_err("set geometry ret : %d\n", ret);
+                return ret;
+        }
+
+        /* Alloc the new DMA buffers according to the pagesize and oobsize */
+        return gpmi_alloc_dma_buffer(this);
+}
+
+static int gpmi_pre_bbt_scan(struct gpmi_nand_data  *this)
+{
+        int ret;
+
+        /* Set up swap_block_mark, must be set before the gpmi_set_geometry() */
+        if (GPMI_IS_MX23(this))
+                this->swap_block_mark = false;
+        else
+                this->swap_block_mark = true;
+
+        /* Set up the medium geometry */
+        ret = gpmi_set_geometry(this);
+        if (ret)
+                return ret;
+
+        /* NAND boot init, depends on the gpmi_set_geometry(). */
+        return nand_boot_init(this);
+}
+
+static int gpmi_scan_bbt(struct mtd_info *mtd)
+{
+        struct nand_chip *chip = mtd->priv;
+        struct gpmi_nand_data *this = chip->priv;
+        int ret;
+
+        /* Prepare for the BBT scan. */
+        ret = gpmi_pre_bbt_scan(this);
+        if (ret)
+                return ret;
+
+        /* use the default BBT implementation */
+        return nand_default_bbt(mtd);
+}
+
+void gpmi_nfc_exit(struct gpmi_nand_data *this)
+{
+        nand_release(&this->mtd);
+        gpmi_free_dma_buffer(this);
+}
+
+static int __devinit gpmi_nfc_init(struct gpmi_nand_data *this)
+{
+        struct gpmi_nand_platform_data *pdata = this->pdata;
+        struct mtd_info  *mtd = &this->mtd;
+        struct nand_chip *chip = &this->nand;
+        int ret;
+
+        /* init current chip */
+        this->current_chip      = -1;
+
+        /* init the MTD data structures */
+        mtd->priv               = chip;
+        mtd->name               = "gpmi-nand";
+        mtd->owner              = THIS_MODULE;
+
+        /* init the nand_chip{}, we don't support a 16-bit NAND Flash bus. */
+        chip->priv              = this;
+        chip->select_chip       = gpmi_select_chip;
+        chip->cmd_ctrl          = gpmi_cmd_ctrl;
+        chip->dev_ready         = gpmi_dev_ready;
+        chip->read_byte         = gpmi_read_byte;
+        chip->read_buf          = gpmi_read_buf;
+        chip->write_buf         = gpmi_write_buf;
+        chip->ecc.read_page     = gpmi_ecc_read_page;
+        chip->ecc.write_page    = gpmi_ecc_write_page;
+        chip->ecc.read_oob      = gpmi_ecc_read_oob;
+        chip->ecc.write_oob     = gpmi_ecc_write_oob;
+        chip->scan_bbt          = gpmi_scan_bbt;
+        chip->badblock_pattern  = &gpmi_bbt_descr;
+        chip->block_markbad     = gpmi_block_markbad;
+        chip->options           |= NAND_NO_SUBPAGE_WRITE;
+        chip->ecc.mode          = NAND_ECC_HW;
+        chip->ecc.size          = 1;
+        chip->ecc.layout        = &gpmi_hw_ecclayout;
+
+        /* Allocate a temporary DMA buffer for reading ID in the nand_scan() */
+        this->bch_geometry.payload_size = 1024;
+        this->bch_geometry.auxiliary_size = 128;
+        ret = gpmi_alloc_dma_buffer(this);
+        if (ret)
+                goto err_out;
+
+        ret = nand_scan(mtd, pdata->max_chip_count);
+        if (ret) {
+                pr_err("Chip scan failed\n");
+                goto err_out;
+        }
+
+        ret = mtd_device_parse_register(mtd, NULL, NULL,
+                        pdata->partitions, pdata->partition_count);
+        if (ret)
+                goto err_out;
+        return 0;
+
+err_out:
+        gpmi_nfc_exit(this);
+        return ret;
+}
+
+static int __devinit gpmi_nand_probe(struct platform_device *pdev)
+{
+        struct gpmi_nand_platform_data *pdata = pdev->dev.platform_data;
+        struct gpmi_nand_data *this;
+        int ret;
+
+        this = kzalloc(sizeof(*this), GFP_KERNEL);
+        if (!this) {
+                pr_err("Failed to allocate per-device memory\n");
+                return -ENOMEM;
+        }
+
+        platform_set_drvdata(pdev, this);
+        this->pdev  = pdev;
+        this->dev   = &pdev->dev;
+        this->pdata = pdata;
+
+        if (pdata->platform_init) {
+                ret = pdata->platform_init();
+                if (ret)
+                        goto platform_init_error;
+        }
+
+        ret = acquire_resources(this);
+        if (ret)
+                goto exit_acquire_resources;
+
+        ret = init_hardware(this);
+        if (ret)
+                goto exit_nfc_init;
+
+        ret = gpmi_nfc_init(this);
+        if (ret)
+                goto exit_nfc_init;
+
+        return 0;
+
+exit_nfc_init:
+        release_resources(this);
+platform_init_error:
+exit_acquire_resources:
+        platform_set_drvdata(pdev, NULL);
+        kfree(this);
+        return ret;
+}
+
+static int __exit gpmi_nand_remove(struct platform_device *pdev)
+{
+        struct gpmi_nand_data *this = platform_get_drvdata(pdev);
+
+        gpmi_nfc_exit(this);
+        release_resources(this);
+        platform_set_drvdata(pdev, NULL);
+        kfree(this);
+        return 0;
+}
+
+static const struct platform_device_id gpmi_ids[] = {
+        {
+                .name = "imx23-gpmi-nand",
+                .driver_data = IS_MX23,
+        }, {
+                .name = "imx28-gpmi-nand",
+                .driver_data = IS_MX28,
+        }, {},
+};
+
+static struct platform_driver gpmi_nand_driver = {
+        .driver = {
+                .name = "gpmi-nand",
+        },
+        .probe   = gpmi_nand_probe,
+        .remove  = __exit_p(gpmi_nand_remove),
+        .id_table = gpmi_ids,
+};
+
+static int __init gpmi_nand_init(void)
+{
+        int err;
+
+        err = platform_driver_register(&gpmi_nand_driver);
+        if (err == 0)
+                printk(KERN_INFO "GPMI NAND driver registered. (IMX)\n");
+        else
+                pr_err("i.MX GPMI NAND driver registration failed\n");
+        return err;
+}
+
+static void __exit gpmi_nand_exit(void)
+{
+        platform_driver_unregister(&gpmi_nand_driver);
+}
+
+module_init(gpmi_nand_init);
+module_exit(gpmi_nand_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("i.MX GPMI NAND Flash Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.h b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
new file mode 100644
index 000000000000..e023bccb7781
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.h
@@ -0,0 +1,273 @@
+/*
+ * Freescale GPMI NAND Flash Driver
+ *
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef __DRIVERS_MTD_NAND_GPMI_NAND_H
+#define __DRIVERS_MTD_NAND_GPMI_NAND_H
+
+#include <linux/mtd/nand.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <mach/dma.h>
+
+struct resources {
+        void          *gpmi_regs;
+        void          *bch_regs;
+        unsigned int  bch_low_interrupt;
+        unsigned int  bch_high_interrupt;
+        unsigned int  dma_low_channel;
+        unsigned int  dma_high_channel;
+        struct clk    *clock;
+};
+
+/**
+ * struct bch_geometry - BCH geometry description.
+ * @gf_len:                   The length of Galois Field. (e.g., 13 or 14)
+ * @ecc_strength:             A number that describes the strength of the ECC
+ *                            algorithm.
+ * @page_size:                The size, in bytes, of a physical page, including
+ *                            both data and OOB.
+ * @metadata_size:            The size, in bytes, of the metadata.
+ * @ecc_chunk_size:           The size, in bytes, of a single ECC chunk. Note
+ *                            the first chunk in the page includes both data and
+ *                            metadata, so it's a bit larger than this value.
+ * @ecc_chunk_count:          The number of ECC chunks in the page,
+ * @payload_size:             The size, in bytes, of the payload buffer.
+ * @auxiliary_size:           The size, in bytes, of the auxiliary buffer.
+ * @auxiliary_status_offset:  The offset into the auxiliary buffer at which
+ *                            the ECC status appears.
+ * @block_mark_byte_offset:   The byte offset in the ECC-based page view at
+ *                            which the underlying physical block mark appears.
+ * @block_mark_bit_offset:    The bit offset into the ECC-based page view at
+ *                            which the underlying physical block mark appears.
+ */
+struct bch_geometry {
+        unsigned int  gf_len;
+        unsigned int  ecc_strength;
+        unsigned int  page_size;
+        unsigned int  metadata_size;
+        unsigned int  ecc_chunk_size;
+        unsigned int  ecc_chunk_count;
+        unsigned int  payload_size;
+        unsigned int  auxiliary_size;
+        unsigned int  auxiliary_status_offset;
+        unsigned int  block_mark_byte_offset;
+        unsigned int  block_mark_bit_offset;
+};
+
+/**
+ * struct boot_rom_geometry - Boot ROM geometry description.
+ * @stride_size_in_pages:        The size of a boot block stride, in pages.
+ * @search_area_stride_exponent: The logarithm to base 2 of the size of a
+ *                               search area in boot block strides.
+ */
+struct boot_rom_geometry {
+        unsigned int  stride_size_in_pages;
+        unsigned int  search_area_stride_exponent;
+};
+
+/* DMA operations types */
+enum dma_ops_type {
+        DMA_FOR_COMMAND = 1,
+        DMA_FOR_READ_DATA,
+        DMA_FOR_WRITE_DATA,
+        DMA_FOR_READ_ECC_PAGE,
+        DMA_FOR_WRITE_ECC_PAGE
+};
+
+/**
+ * struct nand_timing - Fundamental timing attributes for NAND.
+ * @data_setup_in_ns:         The data setup time, in nanoseconds. Usually the
+ *                            maximum of tDS and tWP. A negative value
+ *                            indicates this characteristic isn't known.
+ * @data_hold_in_ns:          The data hold time, in nanoseconds. Usually the
+ *                            maximum of tDH, tWH and tREH. A negative value
+ *                            indicates this characteristic isn't known.
+ * @address_setup_in_ns:      The address setup time, in nanoseconds. Usually
+ *                            the maximum of tCLS, tCS and tALS. A negative
+ *                            value indicates this characteristic isn't known.
+ * @gpmi_sample_delay_in_ns:  A GPMI-specific timing parameter. A negative value
+ *                            indicates this characteristic isn't known.
+ * @tREA_in_ns:               tREA, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ * @tRLOH_in_ns:              tRLOH, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ * @tRHOH_in_ns:              tRHOH, in nanoseconds, from the data sheet. A
+ *                            negative value indicates this characteristic isn't
+ *                            known.
+ */
+struct nand_timing {
+        int8_t  data_setup_in_ns;
+        int8_t  data_hold_in_ns;
+        int8_t  address_setup_in_ns;
+        int8_t  gpmi_sample_delay_in_ns;
+        int8_t  tREA_in_ns;
+        int8_t  tRLOH_in_ns;
+        int8_t  tRHOH_in_ns;
+};
+
+struct gpmi_nand_data {
+        /* System Interface */
+        struct device           *dev;
+        struct platform_device  *pdev;
+        struct gpmi_nand_platform_data  *pdata;
+
+        /* Resources */
+        struct resources        resources;
+
+        /* Flash Hardware */
+        struct nand_timing      timing;
+
+        /* BCH */
+        struct bch_geometry     bch_geometry;
+        struct completion       bch_done;
+
+        /* NAND Boot issue */
+        bool                    swap_block_mark;
+        struct boot_rom_geometry rom_geometry;
+
+        /* MTD / NAND */
+        struct nand_chip        nand;
+        struct mtd_info         mtd;
+
+        /* General-use Variables */
+        int                     current_chip;
+        unsigned int            command_length;
+
+        /* passed from upper layer */
+        uint8_t                 *upper_buf;
+        int                     upper_len;
+
+        /* for DMA operations */
+        bool                    direct_dma_map_ok;
+
+        struct scatterlist      cmd_sgl;
+        char                    *cmd_buffer;
+
+        struct scatterlist      data_sgl;
+        char                    *data_buffer_dma;
+
+        void                    *page_buffer_virt;
+        dma_addr_t              page_buffer_phys;
+        unsigned int            page_buffer_size;
+
+        void                    *payload_virt;
+        dma_addr_t              payload_phys;
+
+        void                    *auxiliary_virt;
+        dma_addr_t              auxiliary_phys;
+
+        /* DMA channels */
+#define DMA_CHANS               8
+        struct dma_chan         *dma_chans[DMA_CHANS];
+        struct mxs_dma_data     dma_data;
+        enum dma_ops_type       last_dma_type;
+        enum dma_ops_type       dma_type;
+        struct completion       dma_done;
+
+        /* private */
+        void                    *private;
+};
+
+/**
+ * struct gpmi_nfc_hardware_timing - GPMI hardware timing parameters.
+ * @data_setup_in_cycles:      The data setup time, in cycles.
+ * @data_hold_in_cycles:       The data hold time, in cycles.
+ * @address_setup_in_cycles:   The address setup time, in cycles.
+ * @use_half_periods:          Indicates the clock is running slowly, so the
+ *                             NFC DLL should use half-periods.
+ * @sample_delay_factor:       The sample delay factor.
+ */
+struct gpmi_nfc_hardware_timing {
+        uint8_t  data_setup_in_cycles;
+        uint8_t  data_hold_in_cycles;
+        uint8_t  address_setup_in_cycles;
+        bool     use_half_periods;
+        uint8_t  sample_delay_factor;
+};
+
+/**
+ * struct timing_threshod - Timing threshold
+ * @max_data_setup_cycles:       The maximum number of data setup cycles that
+ *                               can be expressed in the hardware.
+ * @internal_data_setup_in_ns:   The time, in ns, that the NFC hardware requires
+ *                               for data read internal setup. In the Reference
+ *                               Manual, see the chapter "High-Speed NAND
+ *                               Timing" for more details.
+ * @max_sample_delay_factor:     The maximum sample delay factor that can be
+ *                               expressed in the hardware.
+ * @max_dll_clock_period_in_ns:  The maximum period of the GPMI clock that the
+ *                               sample delay DLL hardware can possibly work
+ *                               with (the DLL is unusable with longer periods).
+ *                               If the full-cycle period is greater than HALF
+ *                               this value, the DLL must be configured to use
+ *                               half-periods.
+ * @max_dll_delay_in_ns:         The maximum amount of delay, in ns, that the
+ *                               DLL can implement.
+ * @clock_frequency_in_hz:       The clock frequency, in Hz, during the current
+ *                               I/O transaction. If no I/O transaction is in
+ *                               progress, this is the clock frequency during
+ *                               the most recent I/O transaction.
+ */
+struct timing_threshod {
+        const unsigned int      max_chip_count;
+        const unsigned int      max_data_setup_cycles;
+        const unsigned int      internal_data_setup_in_ns;
+        const unsigned int      max_sample_delay_factor;
+        const unsigned int      max_dll_clock_period_in_ns;
+        const unsigned int      max_dll_delay_in_ns;
+        unsigned long           clock_frequency_in_hz;
+
+};
+
+/* Common Services */
+extern int common_nfc_set_geometry(struct gpmi_nand_data *);
+extern struct dma_chan *get_dma_chan(struct gpmi_nand_data *);
+extern void prepare_data_dma(struct gpmi_nand_data *,
+                                enum dma_data_direction dr);
+extern int start_dma_without_bch_irq(struct gpmi_nand_data *,
+                                struct dma_async_tx_descriptor *);
+extern int start_dma_with_bch_irq(struct gpmi_nand_data *,
+                                struct dma_async_tx_descriptor *);
+
+/* GPMI-NAND helper function library */
+extern int gpmi_init(struct gpmi_nand_data *);
+extern void gpmi_clear_bch(struct gpmi_nand_data *);
+extern void gpmi_dump_info(struct gpmi_nand_data *);
+extern int bch_set_geometry(struct gpmi_nand_data *);
+extern int gpmi_is_ready(struct gpmi_nand_data *, unsigned chip);
+extern int gpmi_send_command(struct gpmi_nand_data *);
+extern void gpmi_begin(struct gpmi_nand_data *);
+extern void gpmi_end(struct gpmi_nand_data *);
+extern int gpmi_read_data(struct gpmi_nand_data *);
+extern int gpmi_send_data(struct gpmi_nand_data *);
+extern int gpmi_send_page(struct gpmi_nand_data *,
+                        dma_addr_t payload, dma_addr_t auxiliary);
+extern int gpmi_read_page(struct gpmi_nand_data *,
+                        dma_addr_t payload, dma_addr_t auxiliary);
+
+/* BCH : Status Block Completion Codes */
+#define STATUS_GOOD             0x00
+#define STATUS_ERASED           0xff
+#define STATUS_UNCORRECTABLE    0xfe
+
+/* Use the platform_id to distinguish different Archs. */
+#define IS_MX23                 0x1
+#define IS_MX28                 0x2
+#define GPMI_IS_MX23(x)         ((x)->pdev->id_entry->driver_data == IS_MX23)
+#define GPMI_IS_MX28(x)         ((x)->pdev->id_entry->driver_data == IS_MX28)
+#endif
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
new file mode 100644
index 000000000000..83431240e2f2
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
@@ -0,0 +1,172 @@
+/*
+ * Freescale GPMI NAND Flash Driver
+ *
+ * Copyright 2008-2011 Freescale Semiconductor, Inc.
+ * Copyright 2008 Embedded Alley Solutions, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef __GPMI_NAND_GPMI_REGS_H
+#define __GPMI_NAND_GPMI_REGS_H
+
+#define HW_GPMI_CTRL0                                   0x00000000
+#define HW_GPMI_CTRL0_SET                               0x00000004
+#define HW_GPMI_CTRL0_CLR                               0x00000008
+#define HW_GPMI_CTRL0_TOG                               0x0000000c
+
+#define BP_GPMI_CTRL0_COMMAND_MODE                      24
+#define BM_GPMI_CTRL0_COMMAND_MODE      (3 << BP_GPMI_CTRL0_COMMAND_MODE)
+#define BF_GPMI_CTRL0_COMMAND_MODE(v)   \
+        (((v) << BP_GPMI_CTRL0_COMMAND_MODE) & BM_GPMI_CTRL0_COMMAND_MODE)
+#define BV_GPMI_CTRL0_COMMAND_MODE__WRITE               0x0
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ                0x1
+#define BV_GPMI_CTRL0_COMMAND_MODE__READ_AND_COMPARE    0x2
+#define BV_GPMI_CTRL0_COMMAND_MODE__WAIT_FOR_READY      0x3
+
+#define BM_GPMI_CTRL0_WORD_LENGTH                       (1 << 23)
+#define BV_GPMI_CTRL0_WORD_LENGTH__16_BIT               0x0
+#define BV_GPMI_CTRL0_WORD_LENGTH__8_BIT                0x1
+
+/*
+ *  Difference in LOCK_CS between imx23 and imx28 :
+ *  This bit may impact the _POWER_ consumption. So some chips
+ *  do not set it.
+ */
+#define MX23_BP_GPMI_CTRL0_LOCK_CS                      22
+#define MX28_BP_GPMI_CTRL0_LOCK_CS                      27
+#define LOCK_CS_ENABLE                                  0x1
+#define BF_GPMI_CTRL0_LOCK_CS(v, x)                     0x0
+
+/* Difference in CS between imx23 and imx28 */
+#define BP_GPMI_CTRL0_CS                                20
+#define MX23_BM_GPMI_CTRL0_CS           (3 << BP_GPMI_CTRL0_CS)
+#define MX28_BM_GPMI_CTRL0_CS           (7 << BP_GPMI_CTRL0_CS)
+#define BF_GPMI_CTRL0_CS(v, x)          (((v) << BP_GPMI_CTRL0_CS) & \
+                                                (GPMI_IS_MX23((x)) \
+                                                ? MX23_BM_GPMI_CTRL0_CS \
+                                                : MX28_BM_GPMI_CTRL0_CS))
+
+#define BP_GPMI_CTRL0_ADDRESS                           17
+#define BM_GPMI_CTRL0_ADDRESS           (3 << BP_GPMI_CTRL0_ADDRESS)
+#define BF_GPMI_CTRL0_ADDRESS(v)        \
+                (((v) << BP_GPMI_CTRL0_ADDRESS) & BM_GPMI_CTRL0_ADDRESS)
+#define BV_GPMI_CTRL0_ADDRESS__NAND_DATA                0x0
+#define BV_GPMI_CTRL0_ADDRESS__NAND_CLE                 0x1
+#define BV_GPMI_CTRL0_ADDRESS__NAND_ALE                 0x2
+
+#define BM_GPMI_CTRL0_ADDRESS_INCREMENT                 (1 << 16)
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__DISABLED       0x0
+#define BV_GPMI_CTRL0_ADDRESS_INCREMENT__ENABLED        0x1
+
+#define BP_GPMI_CTRL0_XFER_COUNT                        0
+#define BM_GPMI_CTRL0_XFER_COUNT        (0xffff << BP_GPMI_CTRL0_XFER_COUNT)
+#define BF_GPMI_CTRL0_XFER_COUNT(v)     \
+                (((v) << BP_GPMI_CTRL0_XFER_COUNT) & BM_GPMI_CTRL0_XFER_COUNT)
+
+#define HW_GPMI_COMPARE                                 0x00000010
+
+#define HW_GPMI_ECCCTRL                                 0x00000020
+#define HW_GPMI_ECCCTRL_SET                             0x00000024
+#define HW_GPMI_ECCCTRL_CLR                             0x00000028
+#define HW_GPMI_ECCCTRL_TOG                             0x0000002c
+
+#define BP_GPMI_ECCCTRL_ECC_CMD                         13
+#define BM_GPMI_ECCCTRL_ECC_CMD         (3 << BP_GPMI_ECCCTRL_ECC_CMD)
+#define BF_GPMI_ECCCTRL_ECC_CMD(v)      \
+                (((v) << BP_GPMI_ECCCTRL_ECC_CMD) & BM_GPMI_ECCCTRL_ECC_CMD)
+#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_DECODE             0x0
+#define BV_GPMI_ECCCTRL_ECC_CMD__BCH_ENCODE             0x1
+
+#define BM_GPMI_ECCCTRL_ENABLE_ECC                      (1 << 12)
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__ENABLE              0x1
+#define BV_GPMI_ECCCTRL_ENABLE_ECC__DISABLE             0x0
+
+#define BP_GPMI_ECCCTRL_BUFFER_MASK                     0
+#define BM_GPMI_ECCCTRL_BUFFER_MASK     (0x1ff << BP_GPMI_ECCCTRL_BUFFER_MASK)
+#define BF_GPMI_ECCCTRL_BUFFER_MASK(v)  \
+        (((v) << BP_GPMI_ECCCTRL_BUFFER_MASK) & BM_GPMI_ECCCTRL_BUFFER_MASK)
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_AUXONLY        0x100
+#define BV_GPMI_ECCCTRL_BUFFER_MASK__BCH_PAGE           0x1FF
+
+#define HW_GPMI_ECCCOUNT                                0x00000030
+#define HW_GPMI_PAYLOAD                                 0x00000040
+#define HW_GPMI_AUXILIARY                               0x00000050
+#define HW_GPMI_CTRL1                                   0x00000060
+#define HW_GPMI_CTRL1_SET                               0x00000064
+#define HW_GPMI_CTRL1_CLR                               0x00000068
+#define HW_GPMI_CTRL1_TOG                               0x0000006c
+
+#define BM_GPMI_CTRL1_BCH_MODE                          (1 << 18)
+
+#define BP_GPMI_CTRL1_DLL_ENABLE                        17
+#define BM_GPMI_CTRL1_DLL_ENABLE        (1 << BP_GPMI_CTRL1_DLL_ENABLE)
+
+#define BP_GPMI_CTRL1_HALF_PERIOD                       16
+#define BM_GPMI_CTRL1_HALF_PERIOD       (1 << BP_GPMI_CTRL1_HALF_PERIOD)
+
+#define BP_GPMI_CTRL1_RDN_DELAY                         12
+#define BM_GPMI_CTRL1_RDN_DELAY         (0xf << BP_GPMI_CTRL1_RDN_DELAY)
+#define BF_GPMI_CTRL1_RDN_DELAY(v)      \
+                (((v) << BP_GPMI_CTRL1_RDN_DELAY) & BM_GPMI_CTRL1_RDN_DELAY)
+
+#define BM_GPMI_CTRL1_DEV_RESET                         (1 << 3)
+#define BV_GPMI_CTRL1_DEV_RESET__ENABLED                0x0
+#define BV_GPMI_CTRL1_DEV_RESET__DISABLED               0x1
+
+#define BM_GPMI_CTRL1_ATA_IRQRDY_POLARITY               (1 << 2)
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVELOW    0x0
+#define BV_GPMI_CTRL1_ATA_IRQRDY_POLARITY__ACTIVEHIGH   0x1
+
+#define BM_GPMI_CTRL1_CAMERA_MODE                       (1 << 1)
+#define BV_GPMI_CTRL1_GPMI_MODE__NAND                   0x0
+#define BV_GPMI_CTRL1_GPMI_MODE__ATA                    0x1
+
+#define BM_GPMI_CTRL1_GPMI_MODE                         (1 << 0)
+
+#define HW_GPMI_TIMING0                                 0x00000070
+
+#define BP_GPMI_TIMING0_ADDRESS_SETUP                   16
+#define BM_GPMI_TIMING0_ADDRESS_SETUP   (0xff << BP_GPMI_TIMING0_ADDRESS_SETUP)
+#define BF_GPMI_TIMING0_ADDRESS_SETUP(v)        \
+        (((v) << BP_GPMI_TIMING0_ADDRESS_SETUP) & BM_GPMI_TIMING0_ADDRESS_SETUP)
+
+#define BP_GPMI_TIMING0_DATA_HOLD                       8
+#define BM_GPMI_TIMING0_DATA_HOLD       (0xff << BP_GPMI_TIMING0_DATA_HOLD)
+#define BF_GPMI_TIMING0_DATA_HOLD(v)            \
+        (((v) << BP_GPMI_TIMING0_DATA_HOLD) & BM_GPMI_TIMING0_DATA_HOLD)
+
+#define BP_GPMI_TIMING0_DATA_SETUP                      0
+#define BM_GPMI_TIMING0_DATA_SETUP      (0xff << BP_GPMI_TIMING0_DATA_SETUP)
+#define BF_GPMI_TIMING0_DATA_SETUP(v)           \
+        (((v) << BP_GPMI_TIMING0_DATA_SETUP) & BM_GPMI_TIMING0_DATA_SETUP)
+
+#define HW_GPMI_TIMING1                                 0x00000080
+#define BP_GPMI_TIMING1_BUSY_TIMEOUT                    16
+
+#define HW_GPMI_TIMING2                                 0x00000090
+#define HW_GPMI_DATA                                    0x000000a0
+
+/* MX28 uses this to detect READY. */
+#define HW_GPMI_STAT                                    0x000000b0
+#define MX28_BP_GPMI_STAT_READY_BUSY                    24
+#define MX28_BM_GPMI_STAT_READY_BUSY    (0xff << MX28_BP_GPMI_STAT_READY_BUSY)
+#define MX28_BF_GPMI_STAT_READY_BUSY(v)         \
+        (((v) << MX28_BP_GPMI_STAT_READY_BUSY) & MX28_BM_GPMI_STAT_READY_BUSY)
+
+/* MX23 uses this to detect READY. */
+#define HW_GPMI_DEBUG                                   0x000000c0
+#define MX23_BP_GPMI_DEBUG_READY0                       28
+#define MX23_BM_GPMI_DEBUG_READY0       (1 << MX23_BP_GPMI_DEBUG_READY0)
+#endif
diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c
index 02a03e67109c..5dc6f0d92f1a 100644
--- a/drivers/mtd/nand/h1910.c
+++ b/drivers/mtd/nand/h1910.c
@@ -81,9 +81,6 @@ static int h1910_device_ready(struct mtd_info *mtd)
 static int __init h1910_init(void)
 {
         struct nand_chip *this;
-        const char *part_type = 0;
-        int mtd_parts_nb = 0;
-        struct mtd_partition *mtd_parts = 0;
         void __iomem *nandaddr;
 
         if (!machine_is_h1900())
@@ -136,22 +133,10 @@ static int __init h1910_init(void)
                 iounmap((void *)nandaddr);
                 return -ENXIO;
         }
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        mtd_parts_nb = parse_cmdline_partitions(h1910_nand_mtd, &mtd_parts, "h1910-nand");
-        if (mtd_parts_nb > 0)
-                part_type = "command line";
-        else
-                mtd_parts_nb = 0;
-#endif
-        if (mtd_parts_nb == 0) {
-                mtd_parts = partition_info;
-                mtd_parts_nb = NUM_PARTITIONS;
-                part_type = "static";
-        }
 
         /* Register the partitions */
-        printk(KERN_NOTICE "Using %s partition definition\n", part_type);
-        mtd_device_register(h1910_nand_mtd, mtd_parts, mtd_parts_nb);
+        mtd_device_parse_register(h1910_nand_mtd, NULL, 0,
+                        partition_info, NUM_PARTITIONS);
 
         /* Return happy */
         return 0;
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index 6e813daed068..e2664073a89b 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -251,10 +251,6 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
         return 0;
 }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-static const char *part_probes[] = {"cmdline", NULL};
-#endif
-
 static int jz_nand_ioremap_resource(struct platform_device *pdev,
         const char *name, struct resource **res, void __iomem **base)
 {
@@ -299,8 +295,6 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
         struct nand_chip *chip;
         struct mtd_info *mtd;
         struct jz_nand_platform_data *pdata = pdev->dev.platform_data;
-        struct mtd_partition *partition_info;
-        int num_partitions = 0;
 
         nand = kzalloc(sizeof(*nand), GFP_KERNEL);
         if (!nand) {
@@ -373,15 +367,9 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
                 goto err_gpio_free;
         }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        num_partitions = parse_mtd_partitions(mtd, part_probes,
-                                                &partition_info, 0);
-#endif
-        if (num_partitions <= 0 && pdata) {
-                num_partitions = pdata->num_partitions;
-                partition_info = pdata->partitions;
-        }
-        ret = mtd_device_register(mtd, partition_info, num_partitions);
+        ret = mtd_device_parse_register(mtd, NULL, 0,
+                        pdata ? pdata->partitions : NULL,
+                        pdata ? pdata->num_partitions : 0);
 
         if (ret) {
                 dev_err(&pdev->dev, "Failed to add mtd device\n");
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index eb1fbac63eb6..5ede64706346 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -131,8 +131,6 @@ struct mpc5121_nfc_prv {
 
 static void mpc5121_nfc_done(struct mtd_info *mtd);
 
-static const char *mpc5121_nfc_pprobes[] = { "cmdlinepart", NULL };
-
 /* Read NFC register */
 static inline u16 nfc_read(struct mtd_info *mtd, uint reg)
 {
@@ -656,13 +654,13 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
         struct mpc5121_nfc_prv *prv;
         struct resource res;
         struct mtd_info *mtd;
-        struct mtd_partition *parts;
         struct nand_chip *chip;
         unsigned long regs_paddr, regs_size;
         const __be32 *chips_no;
         int resettime = 0;
         int retval = 0;
         int rev, len;
+        struct mtd_part_parser_data ppdata;
 
         /*
          * Check SoC revision. This driver supports only NFC
@@ -727,6 +725,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
         }
 
         mtd->name = "MPC5121 NAND";
+        ppdata.of_node = dn;
         chip->dev_ready = mpc5121_nfc_dev_ready;
         chip->cmdfunc = mpc5121_nfc_command;
         chip->read_byte = mpc5121_nfc_read_byte;
@@ -735,7 +734,8 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
         chip->write_buf = mpc5121_nfc_write_buf;
         chip->verify_buf = mpc5121_nfc_verify_buf;
         chip->select_chip = mpc5121_nfc_select_chip;
-        chip->options = NAND_NO_AUTOINCR | NAND_USE_FLASH_BBT;
+        chip->options = NAND_NO_AUTOINCR;
+        chip->bbt_options = NAND_BBT_USE_FLASH;
         chip->ecc.mode = NAND_ECC_SOFT;
 
         /* Support external chip-select logic on ADS5121 board */
@@ -837,19 +837,7 @@ static int __devinit mpc5121_nfc_probe(struct platform_device *op)
         dev_set_drvdata(dev, mtd);
 
         /* Register device in MTD */
-        retval = parse_mtd_partitions(mtd, mpc5121_nfc_pprobes, &parts, 0);
-#ifdef CONFIG_MTD_OF_PARTS
-        if (retval == 0)
-                retval = of_mtd_parse_partitions(dev, dn, &parts);
-#endif
-        if (retval < 0) {
-                dev_err(dev, "Error parsing MTD partitions!\n");
-                devm_free_irq(dev, prv->irq, mtd);
-                retval = -EINVAL;
-                goto error;
-        }
-
-        retval = mtd_device_register(mtd, parts, retval);
+        retval = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
         if (retval) {
                 dev_err(dev, "Error adding MTD device!\n");
                 devm_free_irq(dev, prv->irq, mtd);
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 90df34c4d26c..74a43b818d0e 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -41,7 +41,7 @@
 
 #define nfc_is_v21()            (cpu_is_mx25() || cpu_is_mx35())
 #define nfc_is_v1()             (cpu_is_mx31() || cpu_is_mx27() || cpu_is_mx21())
-#define nfc_is_v3_2()           cpu_is_mx51()
+#define nfc_is_v3_2()           (cpu_is_mx51() || cpu_is_mx53())
 #define nfc_is_v3()             nfc_is_v3_2()
 
 /* Addresses for NFC registers */
@@ -143,7 +143,6 @@
 struct mxc_nand_host {
         struct mtd_info         mtd;
         struct nand_chip        nand;
-        struct mtd_partition    *parts;
         struct device           *dev;
 
         void                    *spare0;
@@ -350,8 +349,7 @@ static void wait_op_done(struct mxc_nand_host *host, int useirq)
                         udelay(1);
                 }
                 if (max_retries < 0)
-                        DEBUG(MTD_DEBUG_LEVEL0, "%s: INT not set\n",
-                              __func__);
+                        pr_debug("%s: INT not set\n", __func__);
         }
 }
 
@@ -371,7 +369,7 @@ static void send_cmd_v3(struct mxc_nand_host *host, uint16_t cmd, int useirq)
  * waits for completion. */
 static void send_cmd_v1_v2(struct mxc_nand_host *host, uint16_t cmd, int useirq)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "send_cmd(host, 0x%x, %d)\n", cmd, useirq);
+        pr_debug("send_cmd(host, 0x%x, %d)\n", cmd, useirq);
 
         writew(cmd, NFC_V1_V2_FLASH_CMD);
         writew(NFC_CMD, NFC_V1_V2_CONFIG2);
@@ -387,8 +385,7 @@ static void send_cmd_v1_v2(struct mxc_nand_host *host, uint16_t cmd, int useirq)
                         udelay(1);
                 }
                 if (max_retries < 0)
-                        DEBUG(MTD_DEBUG_LEVEL0, "%s: RESET failed\n",
-                              __func__);
+                        pr_debug("%s: RESET failed\n", __func__);
         } else {
                 /* Wait for operation to complete */
                 wait_op_done(host, useirq);
@@ -411,7 +408,7 @@ static void send_addr_v3(struct mxc_nand_host *host, uint16_t addr, int islast)
  * a NAND command. */
 static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islast)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "send_addr(host, 0x%x %d)\n", addr, islast);
+        pr_debug("send_addr(host, 0x%x %d)\n", addr, islast);
 
         writew(addr, NFC_V1_V2_FLASH_ADDR);
         writew(NFC_ADDR, NFC_V1_V2_CONFIG2);
@@ -561,8 +558,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
         uint16_t ecc_status = readw(NFC_V1_V2_ECC_STATUS_RESULT);
 
         if (((ecc_status & 0x3) == 2) || ((ecc_status >> 2) == 2)) {
-                DEBUG(MTD_DEBUG_LEVEL0,
-                      "MXC_NAND: HWECC uncorrectable 2-bit ECC error\n");
+                pr_debug("MXC_NAND: HWECC uncorrectable 2-bit ECC error\n");
                 return -1;
         }
 
@@ -849,7 +845,7 @@ static void preset_v1_v2(struct mtd_info *mtd)
                 writew(0xffff, NFC_V21_UNLOCKEND_BLKADDR3);
         } else if (nfc_is_v1()) {
                 writew(0x0, NFC_V1_UNLOCKSTART_BLKADDR);
-                writew(0x4000, NFC_V1_UNLOCKEND_BLKADDR);
+                writew(0xffff, NFC_V1_UNLOCKEND_BLKADDR);
         } else
                 BUG();
 
@@ -932,8 +928,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
         struct nand_chip *nand_chip = mtd->priv;
         struct mxc_nand_host *host = nand_chip->priv;
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-              "mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
+        pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
               command, column, page_addr);
 
         /* Reset command state information */
@@ -1044,7 +1039,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
         struct mxc_nand_platform_data *pdata = pdev->dev.platform_data;
         struct mxc_nand_host *host;
         struct resource *res;
-        int err = 0, __maybe_unused nr_parts = 0;
+        int err = 0;
         struct nand_ecclayout *oob_smallpage, *oob_largepage;
 
         /* Allocate memory for MTD device structure and private data */
@@ -1179,7 +1174,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
                 this->bbt_td = &bbt_main_descr;
                 this->bbt_md = &bbt_mirror_descr;
                 /* update flash based bbt */
-                this->options |= NAND_USE_FLASH_BBT;
+                this->bbt_options |= NAND_BBT_USE_FLASH;
         }
 
         init_completion(&host->op_completion);
@@ -1231,16 +1226,8 @@ static int __init mxcnd_probe(struct platform_device *pdev)
         }
 
         /* Register the partitions */
-        nr_parts =
-            parse_mtd_partitions(mtd, part_probes, &host->parts, 0);
-        if (nr_parts > 0)
-                mtd_device_register(mtd, host->parts, nr_parts);
-        else if (pdata->parts)
-                mtd_device_register(mtd, pdata->parts, pdata->nr_parts);
-        else {
-                pr_info("Registering %s as whole device\n", mtd->name);
-                mtd_device_register(mtd, NULL, 0);
-        }
+        mtd_device_parse_register(mtd, part_probes, 0,
+                        pdata->parts, pdata->nr_parts);
 
         platform_set_drvdata(pdev, host);
 
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index a46e9bb847bd..3ed9c5e4d34e 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -21,7 +21,7 @@
  *  TODO:
  *      Enable cached programming for 2k page size chips
  *      Check, if mtd->ecctype should be set to MTD_ECC_HW
- *      if we have HW ecc support.
+ *      if we have HW ECC support.
  *      The AG-AND chips have nice features for speed improvement,
  *      which are not supported yet. Read / program 4 pages in one go.
  *      BBT table is not serialized, has to be fixed
@@ -113,21 +113,19 @@ static int check_offs_len(struct mtd_info *mtd,
 
         /* Start address must align on block boundary */
         if (ofs & ((1 << chip->phys_erase_shift) - 1)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Unaligned address\n", __func__);
+                pr_debug("%s: unaligned address\n", __func__);
                 ret = -EINVAL;
         }
 
         /* Length must align on block boundary */
         if (len & ((1 << chip->phys_erase_shift) - 1)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Length not block aligned\n",
-                                        __func__);
+                pr_debug("%s: length not block aligned\n", __func__);
                 ret = -EINVAL;
         }
 
         /* Do not allow past end of device */
         if (ofs + len > mtd->size) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Past end of device\n",
-                                        __func__);
+                pr_debug("%s: past end of device\n", __func__);
                 ret = -EINVAL;
         }
 
@@ -136,9 +134,9 @@ static int check_offs_len(struct mtd_info *mtd,
 
 /**
  * nand_release_device - [GENERIC] release chip
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  *
- * Deselect, release chip lock and wake up anyone waiting on the device
+ * Deselect, release chip lock and wake up anyone waiting on the device.
  */
 static void nand_release_device(struct mtd_info *mtd)
 {
@@ -157,9 +155,9 @@ static void nand_release_device(struct mtd_info *mtd)
 
 /**
  * nand_read_byte - [DEFAULT] read one byte from the chip
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  *
- * Default read function for 8bit buswith
+ * Default read function for 8bit buswidth
  */
 static uint8_t nand_read_byte(struct mtd_info *mtd)
 {
@@ -169,10 +167,11 @@ static uint8_t nand_read_byte(struct mtd_info *mtd)
 
 /**
  * nand_read_byte16 - [DEFAULT] read one byte endianess aware from the chip
- * @mtd:        MTD device structure
+ * nand_read_byte16 - [DEFAULT] read one byte endianness aware from the chip
+ * @mtd: MTD device structure
+ *
+ * Default read function for 16bit buswidth with endianness conversion.
  *
- * Default read function for 16bit buswith with
- * endianess conversion
  */
 static uint8_t nand_read_byte16(struct mtd_info *mtd)
 {
@@ -182,10 +181,9 @@ static uint8_t nand_read_byte16(struct mtd_info *mtd)
 
 /**
  * nand_read_word - [DEFAULT] read one word from the chip
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  *
- * Default read function for 16bit buswith without
- * endianess conversion
+ * Default read function for 16bit buswidth without endianness conversion.
  */
 static u16 nand_read_word(struct mtd_info *mtd)
 {
@@ -195,8 +193,8 @@ static u16 nand_read_word(struct mtd_info *mtd)
 
 /**
  * nand_select_chip - [DEFAULT] control CE line
- * @mtd:        MTD device structure
- * @chipnr:     chipnumber to select, -1 for deselect
+ * @mtd: MTD device structure
+ * @chipnr: chipnumber to select, -1 for deselect
  *
  * Default select function for 1 chip devices.
  */
@@ -218,11 +216,11 @@ static void nand_select_chip(struct mtd_info *mtd, int chipnr)
 
 /**
  * nand_write_buf - [DEFAULT] write buffer to chip
- * @mtd:        MTD device structure
- * @buf:        data buffer
- * @len:        number of bytes to write
+ * @mtd: MTD device structure
+ * @buf: data buffer
+ * @len: number of bytes to write
  *
- * Default write function for 8bit buswith
+ * Default write function for 8bit buswidth.
  */
 static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
@@ -235,11 +233,11 @@ static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 /**
  * nand_read_buf - [DEFAULT] read chip data into buffer
- * @mtd:        MTD device structure
- * @buf:        buffer to store date
- * @len:        number of bytes to read
+ * @mtd: MTD device structure
+ * @buf: buffer to store date
+ * @len: number of bytes to read
  *
- * Default read function for 8bit buswith
+ * Default read function for 8bit buswidth.
  */
 static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
@@ -252,11 +250,11 @@ static void nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 
 /**
  * nand_verify_buf - [DEFAULT] Verify chip data against buffer
- * @mtd:        MTD device structure
- * @buf:        buffer containing the data to compare
- * @len:        number of bytes to compare
+ * @mtd: MTD device structure
+ * @buf: buffer containing the data to compare
+ * @len: number of bytes to compare
  *
- * Default verify function for 8bit buswith
+ * Default verify function for 8bit buswidth.
  */
 static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
@@ -271,11 +269,11 @@ static int nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 /**
  * nand_write_buf16 - [DEFAULT] write buffer to chip
- * @mtd:        MTD device structure
- * @buf:        data buffer
- * @len:        number of bytes to write
+ * @mtd: MTD device structure
+ * @buf: data buffer
+ * @len: number of bytes to write
  *
- * Default write function for 16bit buswith
+ * Default write function for 16bit buswidth.
  */
 static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
@@ -291,11 +289,11 @@ static void nand_write_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 /**
  * nand_read_buf16 - [DEFAULT] read chip data into buffer
- * @mtd:        MTD device structure
- * @buf:        buffer to store date
- * @len:        number of bytes to read
+ * @mtd: MTD device structure
+ * @buf: buffer to store date
+ * @len: number of bytes to read
  *
- * Default read function for 16bit buswith
+ * Default read function for 16bit buswidth.
  */
 static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 {
@@ -310,11 +308,11 @@ static void nand_read_buf16(struct mtd_info *mtd, uint8_t *buf, int len)
 
 /**
  * nand_verify_buf16 - [DEFAULT] Verify chip data against buffer
- * @mtd:        MTD device structure
- * @buf:        buffer containing the data to compare
- * @len:        number of bytes to compare
+ * @mtd: MTD device structure
+ * @buf: buffer containing the data to compare
+ * @len: number of bytes to compare
  *
- * Default verify function for 16bit buswith
+ * Default verify function for 16bit buswidth.
  */
 static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 {
@@ -332,9 +330,9 @@ static int nand_verify_buf16(struct mtd_info *mtd, const uint8_t *buf, int len)
 
 /**
  * nand_block_bad - [DEFAULT] Read bad block marker from the chip
- * @mtd:        MTD device structure
- * @ofs:        offset from device start
- * @getchip:    0, if the chip is already selected
+ * @mtd: MTD device structure
+ * @ofs: offset from device start
+ * @getchip: 0, if the chip is already selected
  *
  * Check, if the block is bad.
  */
@@ -344,7 +342,7 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
         struct nand_chip *chip = mtd->priv;
         u16 bad;
 
-        if (chip->options & NAND_BBT_SCANLASTPAGE)
+        if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
                 ofs += mtd->erasesize - mtd->writesize;
 
         page = (int)(ofs >> chip->page_shift) & chip->pagemask;
@@ -384,11 +382,11 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
 
 /**
  * nand_default_block_markbad - [DEFAULT] mark a block bad
- * @mtd:        MTD device structure
- * @ofs:        offset from device start
+ * @mtd: MTD device structure
+ * @ofs: offset from device start
  *
- * This is the default implementation, which can be overridden by
- * a hardware specific driver.
+ * This is the default implementation, which can be overridden by a hardware
+ * specific driver.
 */
 static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
@@ -396,7 +394,7 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
         uint8_t buf[2] = { 0, 0 };
         int block, ret, i = 0;
 
-        if (chip->options & NAND_BBT_SCANLASTPAGE)
+        if (chip->bbt_options & NAND_BBT_SCANLASTPAGE)
                 ofs += mtd->erasesize - mtd->writesize;
 
         /* Get block number */
@@ -404,33 +402,31 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
         if (chip->bbt)
                 chip->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
 
-        /* Do we have a flash based bad block table ? */
-        if (chip->options & NAND_USE_FLASH_BBT)
+        /* Do we have a flash based bad block table? */
+        if (chip->bbt_options & NAND_BBT_USE_FLASH)
                 ret = nand_update_bbt(mtd, ofs);
         else {
+                struct mtd_oob_ops ops;
+
                 nand_get_device(chip, mtd, FL_WRITING);
 
-                /* Write to first two pages and to byte 1 and 6 if necessary.
-                 * If we write to more than one location, the first error
-                 * encountered quits the procedure. We write two bytes per
-                 * location, so we dont have to mess with 16 bit access.
+                /*
+                 * Write to first two pages if necessary. If we write to more
+                 * than one location, the first error encountered quits the
+                 * procedure. We write two bytes per location, so we dont have
+                 * to mess with 16 bit access.
                  */
+                ops.len = ops.ooblen = 2;
+                ops.datbuf = NULL;
+                ops.oobbuf = buf;
+                ops.ooboffs = chip->badblockpos & ~0x01;
+                ops.mode = MTD_OPS_PLACE_OOB;
                 do {
-                        chip->ops.len = chip->ops.ooblen = 2;
-                        chip->ops.datbuf = NULL;
-                        chip->ops.oobbuf = buf;
-                        chip->ops.ooboffs = chip->badblockpos & ~0x01;
-
-                        ret = nand_do_write_oob(mtd, ofs, &chip->ops);
+                        ret = nand_do_write_oob(mtd, ofs, &ops);
 
-                        if (!ret && (chip->options & NAND_BBT_SCANBYTE1AND6)) {
-                                chip->ops.ooboffs = NAND_SMALL_BADBLOCK_POS
-                                        & ~0x01;
-                                ret = nand_do_write_oob(mtd, ofs, &chip->ops);
-                        }
                         i++;
                         ofs += mtd->writesize;
-                } while (!ret && (chip->options & NAND_BBT_SCAN2NDPAGE) &&
+                } while (!ret && (chip->bbt_options & NAND_BBT_SCAN2NDPAGE) &&
                                 i < 2);
 
                 nand_release_device(mtd);
@@ -443,16 +439,16 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
 /**
  * nand_check_wp - [GENERIC] check if the chip is write protected
- * @mtd:        MTD device structure
- * Check, if the device is write protected
+ * @mtd: MTD device structure
  *
- * The function expects, that the device is already selected
+ * Check, if the device is write protected. The function expects, that the
+ * device is already selected.
  */
 static int nand_check_wp(struct mtd_info *mtd)
 {
         struct nand_chip *chip = mtd->priv;
 
-        /* broken xD cards report WP despite being writable */
+        /* Broken xD cards report WP despite being writable */
         if (chip->options & NAND_BROKEN_XD)
                 return 0;
 
@@ -463,10 +459,10 @@ static int nand_check_wp(struct mtd_info *mtd)
 
 /**
  * nand_block_checkbad - [GENERIC] Check if a block is marked bad
- * @mtd:        MTD device structure
- * @ofs:        offset from device start
- * @getchip:    0, if the chip is already selected
- * @allowbbt:   1, if its allowed to access the bbt area
+ * @mtd: MTD device structure
+ * @ofs: offset from device start
+ * @getchip: 0, if the chip is already selected
+ * @allowbbt: 1, if its allowed to access the bbt area
  *
  * Check, if the block is bad. Either by reading the bad block table or
  * calling of the scan function.
@@ -485,8 +481,8 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
 
 /**
  * panic_nand_wait_ready - [GENERIC] Wait for the ready pin after commands.
- * @mtd:        MTD device structure
- * @timeo:      Timeout
+ * @mtd: MTD device structure
+ * @timeo: Timeout
  *
  * Helper function for nand_wait_ready used when needing to wait in interrupt
  * context.
@@ -505,10 +501,7 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)
         }
 }
 
-/*
- * Wait for the ready pin, after a command
- * The timeout is catched later.
- */
+/* Wait for the ready pin, after a command. The timeout is caught later. */
 void nand_wait_ready(struct mtd_info *mtd)
 {
         struct nand_chip *chip = mtd->priv;
@@ -519,7 +512,7 @@ void nand_wait_ready(struct mtd_info *mtd)
                 return panic_nand_wait_ready(mtd, 400);
 
         led_trigger_event(nand_led_trigger, LED_FULL);
-        /* wait until command is processed or timeout occures */
+        /* Wait until command is processed or timeout occurs */
         do {
                 if (chip->dev_ready(mtd))
                         break;
@@ -531,13 +524,13 @@ EXPORT_SYMBOL_GPL(nand_wait_ready);
 
 /**
  * nand_command - [DEFAULT] Send command to NAND device
- * @mtd:        MTD device structure
- * @command:    the command to be sent
- * @column:     the column address for this command, -1 if none
- * @page_addr:  the page address for this command, -1 if none
+ * @mtd: MTD device structure
+ * @command: the command to be sent
+ * @column: the column address for this command, -1 if none
+ * @page_addr: the page address for this command, -1 if none
  *
- * Send command to NAND device. This function is used for small page
- * devices (256/512 Bytes per page)
+ * Send command to NAND device. This function is used for small page devices
+ * (256/512 Bytes per page).
  */
 static void nand_command(struct mtd_info *mtd, unsigned int command,
                          int column, int page_addr)
@@ -545,9 +538,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
         register struct nand_chip *chip = mtd->priv;
         int ctrl = NAND_CTRL_CLE | NAND_CTRL_CHANGE;
 
-        /*
-         * Write out the command to the device.
-         */
+        /* Write out the command to the device */
         if (command == NAND_CMD_SEQIN) {
                 int readcmd;
 
@@ -567,9 +558,7 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
         }
         chip->cmd_ctrl(mtd, command, ctrl);
 
-        /*
-         * Address cycle, when necessary
-         */
+        /* Address cycle, when necessary */
         ctrl = NAND_CTRL_ALE | NAND_CTRL_CHANGE;
         /* Serially input address */
         if (column != -1) {
@@ -590,8 +579,8 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
         chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
         /*
-         * program and erase have their own busy handlers
-         * status and sequential in needs no delay
+         * Program and erase have their own busy handlers status and sequential
+         * in needs no delay
          */
         switch (command) {
 
@@ -625,8 +614,10 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
                         return;
                 }
         }
-        /* Apply this short delay always to ensure that we do wait tWB in
-         * any case on any machine. */
+        /*
+         * Apply this short delay always to ensure that we do wait tWB in
+         * any case on any machine.
+         */
         ndelay(100);
 
         nand_wait_ready(mtd);
@@ -634,14 +625,14 @@ static void nand_command(struct mtd_info *mtd, unsigned int command,
 
 /**
  * nand_command_lp - [DEFAULT] Send command to NAND large page device
- * @mtd:        MTD device structure
- * @command:    the command to be sent
- * @column:     the column address for this command, -1 if none
- * @page_addr:  the page address for this command, -1 if none
+ * @mtd: MTD device structure
+ * @command: the command to be sent
+ * @column: the column address for this command, -1 if none
+ * @page_addr: the page address for this command, -1 if none
  *
  * Send command to NAND device. This is the version for the new large page
- * devices We dont have the separate regions as we have in the small page
- * devices.  We must emulate NAND_CMD_READOOB to keep the code compatible.
+ * devices. We don't have the separate regions as we have in the small page
+ * devices. We must emulate NAND_CMD_READOOB to keep the code compatible.
  */
 static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
                             int column, int page_addr)
@@ -683,8 +674,8 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
         chip->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
 
         /*
-         * program and erase have their own busy handlers
-         * status, sequential in, and deplete1 need no delay
+         * Program and erase have their own busy handlers status, sequential
+         * in, and deplete1 need no delay.
          */
         switch (command) {
 
@@ -698,14 +689,12 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
         case NAND_CMD_DEPLETE1:
                 return;
 
-                /*
-                 * read error status commands require only a short delay
-                 */
         case NAND_CMD_STATUS_ERROR:
         case NAND_CMD_STATUS_ERROR0:
         case NAND_CMD_STATUS_ERROR1:
         case NAND_CMD_STATUS_ERROR2:
         case NAND_CMD_STATUS_ERROR3:
+                /* Read error status commands require only a short delay */
                 udelay(chip->chip_delay);
                 return;
 
@@ -739,7 +728,7 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
         default:
                 /*
                  * If we don't have access to the busy pin, we apply the given
-                 * command delay
+                 * command delay.
                  */
                 if (!chip->dev_ready) {
                         udelay(chip->chip_delay);
@@ -747,8 +736,10 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
                 }
         }
 
-        /* Apply this short delay always to ensure that we do wait tWB in
-         * any case on any machine. */
+        /*
+         * Apply this short delay always to ensure that we do wait tWB in
+         * any case on any machine.
+         */
         ndelay(100);
 
         nand_wait_ready(mtd);
@@ -756,25 +747,25 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command,
 
 /**
  * panic_nand_get_device - [GENERIC] Get chip for selected access
- * @chip:       the nand chip descriptor
- * @mtd:        MTD device structure
- * @new_state:  the state which is requested
+ * @chip: the nand chip descriptor
+ * @mtd: MTD device structure
+ * @new_state: the state which is requested
  *
  * Used when in panic, no locks are taken.
  */
 static void panic_nand_get_device(struct nand_chip *chip,
                       struct mtd_info *mtd, int new_state)
 {
-        /* Hardware controller shared among independend devices */
+        /* Hardware controller shared among independent devices */
         chip->controller->active = chip;
         chip->state = new_state;
 }
 
 /**
  * nand_get_device - [GENERIC] Get chip for selected access
- * @chip:       the nand chip descriptor
- * @mtd:        MTD device structure
- * @new_state:  the state which is requested
+ * @chip: the nand chip descriptor
+ * @mtd: MTD device structure
+ * @new_state: the state which is requested
  *
  * Get the device and lock it for exclusive access
  */
@@ -812,10 +803,10 @@ retry:
 }
 
 /**
- * panic_nand_wait - [GENERIC]  wait until the command is done
- * @mtd:        MTD device structure
- * @chip:       NAND chip structure
- * @timeo:      Timeout
+ * panic_nand_wait - [GENERIC] wait until the command is done
+ * @mtd: MTD device structure
+ * @chip: NAND chip structure
+ * @timeo: timeout
  *
  * Wait for command done. This is a helper function for nand_wait used when
  * we are in interrupt context. May happen when in panic and trying to write
@@ -838,13 +829,13 @@ static void panic_nand_wait(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_wait - [DEFAULT]  wait until the command is done
- * @mtd:        MTD device structure
- * @chip:       NAND chip structure
+ * nand_wait - [DEFAULT] wait until the command is done
+ * @mtd: MTD device structure
+ * @chip: NAND chip structure
  *
- * Wait for command done. This applies to erase and program only
- * Erase can take up to 400ms and program up to 20ms according to
- * general NAND and SmartMedia specs
+ * Wait for command done. This applies to erase and program only. Erase can
+ * take up to 400ms and program up to 20ms according to general NAND and
+ * SmartMedia specs.
  */
 static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 {
@@ -859,8 +850,10 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 
         led_trigger_event(nand_led_trigger, LED_FULL);
 
-        /* Apply this short delay always to ensure that we do wait tWB in
-         * any case on any machine. */
+        /*
+         * Apply this short delay always to ensure that we do wait tWB in any
+         * case on any machine.
+         */
         ndelay(100);
 
         if ((state == FL_ERASING) && (chip->options & NAND_IS_AND))
@@ -890,16 +883,15 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip)
 
 /**
  * __nand_unlock - [REPLACEABLE] unlocks specified locked blocks
- *
  * @mtd: mtd info
  * @ofs: offset to start unlock from
  * @len: length to unlock
- * @invert:   when = 0, unlock the range of blocks within the lower and
- *                      upper boundary address
- *            when = 1, unlock the range of blocks outside the boundaries
- *                      of the lower and upper boundary address
+ * @invert: when = 0, unlock the range of blocks within the lower and
+ *                    upper boundary address
+ *          when = 1, unlock the range of blocks outside the boundaries
+ *                    of the lower and upper boundary address
  *
- * return - unlock status
+ * Returs unlock status.
  */
 static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
                                         uint64_t len, int invert)
@@ -919,10 +911,9 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
 
         /* Call wait ready function */
         status = chip->waitfunc(mtd, chip);
-        udelay(1000);
         /* See if device thinks it succeeded */
         if (status & 0x01) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n",
+                pr_debug("%s: error status = 0x%08x\n",
                                         __func__, status);
                 ret = -EIO;
         }
@@ -932,12 +923,11 @@ static int __nand_unlock(struct mtd_info *mtd, loff_t ofs,
 
 /**
  * nand_unlock - [REPLACEABLE] unlocks specified locked blocks
- *
  * @mtd: mtd info
  * @ofs: offset to start unlock from
  * @len: length to unlock
  *
- * return - unlock status
+ * Returns unlock status.
  */
 int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
@@ -945,7 +935,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
         int chipnr;
         struct nand_chip *chip = mtd->priv;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n",
+        pr_debug("%s: start = 0x%012llx, len = %llu\n",
                         __func__, (unsigned long long)ofs, len);
 
         if (check_offs_len(mtd, ofs, len))
@@ -964,7 +954,7 @@ int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 
         /* Check, if it is write protected */
         if (nand_check_wp(mtd)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n",
+                pr_debug("%s: device is write protected!\n",
                                         __func__);
                 ret = -EIO;
                 goto out;
@@ -981,18 +971,16 @@ EXPORT_SYMBOL(nand_unlock);
 
 /**
  * nand_lock - [REPLACEABLE] locks all blocks present in the device
- *
  * @mtd: mtd info
  * @ofs: offset to start unlock from
  * @len: length to unlock
  *
- * return - lock status
+ * This feature is not supported in many NAND parts. 'Micron' NAND parts do
+ * have this feature, but it allows only to lock all blocks, not for specified
+ * range for block. Implementing 'lock' feature by making use of 'unlock', for
+ * now.
  *
- * This feature is not supported in many NAND parts. 'Micron' NAND parts
- * do have this feature, but it allows only to lock all blocks, not for
- * specified range for block.
- *
- * Implementing 'lock' feature by making use of 'unlock', for now.
+ * Returns lock status.
  */
 int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 {
@@ -1000,7 +988,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
         int chipnr, status, page;
         struct nand_chip *chip = mtd->priv;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n",
+        pr_debug("%s: start = 0x%012llx, len = %llu\n",
                         __func__, (unsigned long long)ofs, len);
 
         if (check_offs_len(mtd, ofs, len))
@@ -1015,7 +1003,7 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 
         /* Check, if it is write protected */
         if (nand_check_wp(mtd)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n",
+                pr_debug("%s: device is write protected!\n",
                                         __func__);
                 status = MTD_ERASE_FAILED;
                 ret = -EIO;
@@ -1028,10 +1016,9 @@ int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 
         /* Call wait ready function */
         status = chip->waitfunc(mtd, chip);
-        udelay(1000);
         /* See if device thinks it succeeded */
         if (status & 0x01) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Error status = 0x%08x\n",
+                pr_debug("%s: error status = 0x%08x\n",
                                         __func__, status);
                 ret = -EIO;
                 goto out;
@@ -1047,13 +1034,13 @@ out:
 EXPORT_SYMBOL(nand_lock);
 
 /**
- * nand_read_page_raw - [Intern] read raw page data without ecc
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_raw - [INTERN] read raw page data without ecc
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  *
- * Not for syndrome calculating ecc controllers, which use a special oob layout
+ * Not for syndrome calculating ECC controllers, which use a special oob layout.
  */
 static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
                               uint8_t *buf, int page)
@@ -1064,11 +1051,11 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_read_page_raw_syndrome - [Intern] read raw page data without ecc
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_raw_syndrome - [INTERN] read raw page data without ecc
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  *
  * We need a special oob layout and handling even when OOB isn't used.
  */
@@ -1107,11 +1094,11 @@ static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
 }
 
 /**
- * nand_read_page_swecc - [REPLACABLE] software ecc based page read function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_swecc - [REPLACEABLE] software ECC based page read function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  */
 static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
                                 uint8_t *buf, int page)
@@ -1148,12 +1135,12 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_read_subpage - [REPLACABLE] software ecc based sub-page read function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @data_offs:  offset of requested data within the page
- * @readlen:    data length
- * @bufpoi:     buffer to store read data
+ * nand_read_subpage - [REPLACEABLE] software ECC based sub-page read function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @data_offs: offset of requested data within the page
+ * @readlen: data length
+ * @bufpoi: buffer to store read data
  */
 static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
                         uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi)
@@ -1166,12 +1153,12 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
         int busw = (chip->options & NAND_BUSWIDTH_16) ? 2 : 1;
         int index = 0;
 
-        /* Column address wihin the page aligned to ECC size (256bytes). */
+        /* Column address within the page aligned to ECC size (256bytes) */
         start_step = data_offs / chip->ecc.size;
         end_step = (data_offs + readlen - 1) / chip->ecc.size;
         num_steps = end_step - start_step + 1;
 
-        /* Data size aligned to ECC ecc.size*/
+        /* Data size aligned to ECC ecc.size */
         datafrag_len = num_steps * chip->ecc.size;
         eccfrag_len = num_steps * chip->ecc.bytes;
 
@@ -1183,13 +1170,14 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
         p = bufpoi + data_col_addr;
         chip->read_buf(mtd, p, datafrag_len);
 
-        /* Calculate  ECC */
+        /* Calculate ECC */
         for (i = 0; i < eccfrag_len ; i += chip->ecc.bytes, p += chip->ecc.size)
                 chip->ecc.calculate(mtd, p, &chip->buffers->ecccalc[i]);
 
-        /* The performance is faster if to position offsets
-           according to ecc.pos. Let make sure here that
-           there are no gaps in ecc positions */
+        /*
+         * The performance is faster if we position offsets according to
+         * ecc.pos. Let's make sure that there are no gaps in ECC positions.
+         */
         for (i = 0; i < eccfrag_len - 1; i++) {
                 if (eccpos[i + start_step * chip->ecc.bytes] + 1 !=
                         eccpos[i + start_step * chip->ecc.bytes + 1]) {
@@ -1201,8 +1189,10 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
                 chip->cmdfunc(mtd, NAND_CMD_RNDOUT, mtd->writesize, -1);
                 chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
         } else {
-                /* send the command to read the particular ecc bytes */
-                /* take care about buswidth alignment in read_buf */
+                /*
+                 * Send the command to read the particular ECC bytes take care
+                 * about buswidth alignment in read_buf.
+                 */
                 index = start_step * chip->ecc.bytes;
 
                 aligned_pos = eccpos[index] & ~(busw - 1);
@@ -1235,13 +1225,13 @@ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_read_page_hwecc - [REPLACABLE] hardware ecc based page read function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_hwecc - [REPLACEABLE] hardware ECC based page read function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  *
- * Not for syndrome calculating ecc controllers which need a special oob layout
+ * Not for syndrome calculating ECC controllers which need a special oob layout.
  */
 static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                 uint8_t *buf, int page)
@@ -1280,18 +1270,17 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_read_page_hwecc_oob_first - [REPLACABLE] hw ecc, read oob first
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_hwecc_oob_first - [REPLACEABLE] hw ecc, read oob first
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  *
- * Hardware ECC for large page chips, require OOB to be read first.
- * For this ECC mode, the write_page method is re-used from ECC_HW.
- * These methods read/write ECC from the OOB area, unlike the
- * ECC_HW_SYNDROME support with multiple ECC steps, follows the
- * "infix ECC" scheme and reads/writes ECC from the data area, by
- * overwriting the NAND manufacturer bad block markings.
+ * Hardware ECC for large page chips, require OOB to be read first. For this
+ * ECC mode, the write_page method is re-used from ECC_HW. These methods
+ * read/write ECC from the OOB area, unlike the ECC_HW_SYNDROME support with
+ * multiple ECC steps, follows the "infix ECC" scheme and reads/writes ECC from
+ * the data area, by overwriting the NAND manufacturer bad block markings.
  */
 static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
         struct nand_chip *chip, uint8_t *buf, int page)
@@ -1329,14 +1318,14 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
 }
 
 /**
- * nand_read_page_syndrome - [REPLACABLE] hardware ecc syndrom based page read
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        buffer to store read data
- * @page:       page number to read
+ * nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: buffer to store read data
+ * @page: page number to read
  *
- * The hw generator calculates the error syndrome automatically. Therefor
- * we need a special oob layout and handling.
+ * The hw generator calculates the error syndrome automatically. Therefore we
+ * need a special oob layout and handling.
  */
 static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
                                    uint8_t *buf, int page)
@@ -1384,29 +1373,29 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_transfer_oob - [Internal] Transfer oob to client buffer
- * @chip:       nand chip structure
- * @oob:        oob destination address
- * @ops:        oob ops structure
- * @len:        size of oob to transfer
+ * nand_transfer_oob - [INTERN] Transfer oob to client buffer
+ * @chip: nand chip structure
+ * @oob: oob destination address
+ * @ops: oob ops structure
+ * @len: size of oob to transfer
  */
 static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
                                   struct mtd_oob_ops *ops, size_t len)
 {
         switch (ops->mode) {
 
-        case MTD_OOB_PLACE:
-        case MTD_OOB_RAW:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_RAW:
                 memcpy(oob, chip->oob_poi + ops->ooboffs, len);
                 return oob + len;
 
-        case MTD_OOB_AUTO: {
+        case MTD_OPS_AUTO_OOB: {
                 struct nand_oobfree *free = chip->ecc.layout->oobfree;
                 uint32_t boffs = 0, roffs = ops->ooboffs;
                 size_t bytes = 0;
 
                 for (; free->length && len; free++, len -= bytes) {
-                        /* Read request not from offset 0 ? */
+                        /* Read request not from offset 0? */
                         if (unlikely(roffs)) {
                                 if (roffs >= free->length) {
                                         roffs -= free->length;
@@ -1432,11 +1421,10 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
 }
 
 /**
- * nand_do_read_ops - [Internal] Read data with ECC
- *
- * @mtd:        MTD device structure
- * @from:       offset to read from
- * @ops:        oob ops structure
+ * nand_do_read_ops - [INTERN] Read data with ECC
+ * @mtd: MTD device structure
+ * @from: offset to read from
+ * @ops: oob ops structure
  *
  * Internal function. Called with chip held.
  */
@@ -1451,7 +1439,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
         int ret = 0;
         uint32_t readlen = ops->len;
         uint32_t oobreadlen = ops->ooblen;
-        uint32_t max_oobsize = ops->mode == MTD_OOB_AUTO ?
+        uint32_t max_oobsize = ops->mode == MTD_OPS_AUTO_OOB ?
                 mtd->oobavail : mtd->oobsize;
 
         uint8_t *bufpoi, *oob, *buf;
@@ -1473,7 +1461,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                 bytes = min(mtd->writesize - col, readlen);
                 aligned = (bytes == mtd->writesize);
 
-                /* Is the current page in the buffer ? */
+                /* Is the current page in the buffer? */
                 if (realpage != chip->pagebuf || oob) {
                         bufpoi = aligned ? buf : chip->buffers->databuf;
 
@@ -1483,7 +1471,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                         }
 
                         /* Now read the page into the buffer */
-                        if (unlikely(ops->mode == MTD_OOB_RAW))
+                        if (unlikely(ops->mode == MTD_OPS_RAW))
                                 ret = chip->ecc.read_page_raw(mtd, chip,
                                                               bufpoi, page);
                         else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob)
@@ -1492,14 +1480,22 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                         else
                                 ret = chip->ecc.read_page(mtd, chip, bufpoi,
                                                           page);
-                        if (ret < 0)
+                        if (ret < 0) {
+                                if (!aligned)
+                                        /* Invalidate page cache */
+                                        chip->pagebuf = -1;
                                 break;
+                        }
 
                         /* Transfer not aligned data */
                         if (!aligned) {
                                 if (!NAND_SUBPAGE_READ(chip) && !oob &&
-                                    !(mtd->ecc_stats.failed - stats.failed))
+                                    !(mtd->ecc_stats.failed - stats.failed) &&
+                                    (ops->mode != MTD_OPS_RAW))
                                         chip->pagebuf = realpage;
+                                else
+                                        /* Invalidate page cache */
+                                        chip->pagebuf = -1;
                                 memcpy(buf, chip->buffers->databuf + col, bytes);
                         }
 
@@ -1539,7 +1535,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                 if (!readlen)
                         break;
 
-                /* For subsequent reads align to page boundary. */
+                /* For subsequent reads align to page boundary */
                 col = 0;
                 /* Increment page address */
                 realpage++;
@@ -1552,8 +1548,9 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
                         chip->select_chip(mtd, chipnr);
                 }
 
-                /* Check, if the chip supports auto page increment
-                 * or if we have hit a block boundary.
+                /*
+                 * Check, if the chip supports auto page increment or if we
+                 * have hit a block boundary.
                  */
                 if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck))
                         sndcmd = 1;
@@ -1574,18 +1571,19 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 
 /**
  * nand_read - [MTD Interface] MTD compatibility function for nand_do_read_ecc
- * @mtd:        MTD device structure
- * @from:       offset to read from
- * @len:        number of bytes to read
- * @retlen:     pointer to variable to store the number of read bytes
- * @buf:        the databuffer to put data
+ * @mtd: MTD device structure
+ * @from: offset to read from
+ * @len: number of bytes to read
+ * @retlen: pointer to variable to store the number of read bytes
+ * @buf: the databuffer to put data
  *
- * Get hold of the chip and call nand_do_read
+ * Get hold of the chip and call nand_do_read.
  */
 static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
                      size_t *retlen, uint8_t *buf)
 {
         struct nand_chip *chip = mtd->priv;
+        struct mtd_oob_ops ops;
         int ret;
 
         /* Do not allow reads past end of device */
@@ -1596,13 +1594,14 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
 
         nand_get_device(chip, mtd, FL_READING);
 
-        chip->ops.len = len;
-        chip->ops.datbuf = buf;
-        chip->ops.oobbuf = NULL;
+        ops.len = len;
+        ops.datbuf = buf;
+        ops.oobbuf = NULL;
+        ops.mode = 0;
 
-        ret = nand_do_read_ops(mtd, from, &chip->ops);
+        ret = nand_do_read_ops(mtd, from, &ops);
 
-        *retlen = chip->ops.retlen;
+        *retlen = ops.retlen;
 
         nand_release_device(mtd);
 
@@ -1610,11 +1609,11 @@ static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
 }
 
 /**
- * nand_read_oob_std - [REPLACABLE] the most common OOB data read function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @page:       page number to read
- * @sndcmd:     flag whether to issue read command or not
+ * nand_read_oob_std - [REPLACEABLE] the most common OOB data read function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @page: page number to read
+ * @sndcmd: flag whether to issue read command or not
  */
 static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
                              int page, int sndcmd)
@@ -1628,12 +1627,12 @@ static int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_read_oob_syndrome - [REPLACABLE] OOB data read function for HW ECC
+ * nand_read_oob_syndrome - [REPLACEABLE] OOB data read function for HW ECC
  *                          with syndromes
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @page:       page number to read
- * @sndcmd:     flag whether to issue read command or not
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @page: page number to read
+ * @sndcmd: flag whether to issue read command or not
  */
 static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
                                   int page, int sndcmd)
@@ -1667,10 +1666,10 @@ static int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_write_oob_std - [REPLACABLE] the most common OOB data write function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @page:       page number to write
+ * nand_write_oob_std - [REPLACEABLE] the most common OOB data write function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @page: page number to write
  */
 static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
                               int page)
@@ -1690,11 +1689,11 @@ static int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_write_oob_syndrome - [REPLACABLE] OOB data write function for HW ECC
- *                           with syndrome - only for large page flash !
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @page:       page number to write
+ * nand_write_oob_syndrome - [REPLACEABLE] OOB data write function for HW ECC
+ *                           with syndrome - only for large page flash
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @page: page number to write
  */
 static int nand_write_oob_syndrome(struct mtd_info *mtd,
                                    struct nand_chip *chip, int page)
@@ -1749,34 +1748,37 @@ static int nand_write_oob_syndrome(struct mtd_info *mtd,
 }
 
 /**
- * nand_do_read_oob - [Intern] NAND read out-of-band
- * @mtd:        MTD device structure
- * @from:       offset to read from
- * @ops:        oob operations description structure
+ * nand_do_read_oob - [INTERN] NAND read out-of-band
+ * @mtd: MTD device structure
+ * @from: offset to read from
+ * @ops: oob operations description structure
  *
- * NAND read out-of-band data from the spare area
+ * NAND read out-of-band data from the spare area.
  */
 static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
                             struct mtd_oob_ops *ops)
 {
         int page, realpage, chipnr, sndcmd = 1;
         struct nand_chip *chip = mtd->priv;
+        struct mtd_ecc_stats stats;
         int blkcheck = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
         int readlen = ops->ooblen;
         int len;
         uint8_t *buf = ops->oobbuf;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08Lx, len = %i\n",
+        pr_debug("%s: from = 0x%08Lx, len = %i\n",
                         __func__, (unsigned long long)from, readlen);
 
-        if (ops->mode == MTD_OOB_AUTO)
+        stats = mtd->ecc_stats;
+
+        if (ops->mode == MTD_OPS_AUTO_OOB)
                 len = chip->ecc.layout->oobavail;
         else
                 len = mtd->oobsize;
 
         if (unlikely(ops->ooboffs >= len)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start read "
-                                        "outside oob\n", __func__);
+                pr_debug("%s: attempt to start read outside oob\n",
+                                __func__);
                 return -EINVAL;
         }
 
@@ -1784,8 +1786,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
         if (unlikely(from >= mtd->size ||
                      ops->ooboffs + readlen > ((mtd->size >> chip->page_shift) -
                                         (from >> chip->page_shift)) * len)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read beyond end "
-                                        "of device\n", __func__);
+                pr_debug("%s: attempt to read beyond end of device\n",
+                                __func__);
                 return -EINVAL;
         }
 
@@ -1797,7 +1799,10 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
         page = realpage & chip->pagemask;
 
         while (1) {
-                sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
+                if (ops->mode == MTD_OPS_RAW)
+                        sndcmd = chip->ecc.read_oob_raw(mtd, chip, page, sndcmd);
+                else
+                        sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
 
                 len = min(len, readlen);
                 buf = nand_transfer_oob(chip, buf, ops, len);
@@ -1830,24 +1835,29 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
                         chip->select_chip(mtd, chipnr);
                 }
 
-                /* Check, if the chip supports auto page increment
-                 * or if we have hit a block boundary.
+                /*
+                 * Check, if the chip supports auto page increment or if we
+                 * have hit a block boundary.
                  */
                 if (!NAND_CANAUTOINCR(chip) || !(page & blkcheck))
                         sndcmd = 1;
         }
 
         ops->oobretlen = ops->ooblen;
-        return 0;
+
+        if (mtd->ecc_stats.failed - stats.failed)
+                return -EBADMSG;
+
+        return  mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
 }
 
 /**
  * nand_read_oob - [MTD Interface] NAND read data and/or out-of-band
- * @mtd:        MTD device structure
- * @from:       offset to read from
- * @ops:        oob operation description structure
+ * @mtd: MTD device structure
+ * @from: offset to read from
+ * @ops: oob operation description structure
  *
- * NAND read data and/or out-of-band data
+ * NAND read data and/or out-of-band data.
  */
 static int nand_read_oob(struct mtd_info *mtd, loff_t from,
                          struct mtd_oob_ops *ops)
@@ -1859,17 +1869,17 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
 
         /* Do not allow reads past end of device */
         if (ops->datbuf && (from + ops->len) > mtd->size) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read "
-                                "beyond end of device\n", __func__);
+                pr_debug("%s: attempt to read beyond end of device\n",
+                                __func__);
                 return -EINVAL;
         }
 
         nand_get_device(chip, mtd, FL_READING);
 
         switch (ops->mode) {
-        case MTD_OOB_PLACE:
-        case MTD_OOB_AUTO:
-        case MTD_OOB_RAW:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_AUTO_OOB:
+        case MTD_OPS_RAW:
                 break;
 
         default:
@@ -1888,12 +1898,12 @@ out:
 
 
 /**
- * nand_write_page_raw - [Intern] raw page write function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        data buffer
+ * nand_write_page_raw - [INTERN] raw page write function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: data buffer
  *
- * Not for syndrome calculating ecc controllers, which use a special oob layout
+ * Not for syndrome calculating ECC controllers, which use a special oob layout.
  */
 static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
                                 const uint8_t *buf)
@@ -1903,10 +1913,10 @@ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_write_page_raw_syndrome - [Intern] raw page write function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        data buffer
+ * nand_write_page_raw_syndrome - [INTERN] raw page write function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: data buffer
  *
  * We need a special oob layout and handling even when ECC isn't checked.
  */
@@ -1942,10 +1952,10 @@ static void nand_write_page_raw_syndrome(struct mtd_info *mtd,
                 chip->write_buf(mtd, oob, size);
 }
 /**
- * nand_write_page_swecc - [REPLACABLE] software ecc based page write function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        data buffer
+ * nand_write_page_swecc - [REPLACEABLE] software ECC based page write function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: data buffer
  */
 static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
                                   const uint8_t *buf)
@@ -1957,7 +1967,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
         const uint8_t *p = buf;
         uint32_t *eccpos = chip->ecc.layout->eccpos;
 
-        /* Software ecc calculation */
+        /* Software ECC calculation */
         for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize)
                 chip->ecc.calculate(mtd, p, &ecc_calc[i]);
 
@@ -1968,10 +1978,10 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_write_page_hwecc - [REPLACABLE] hardware ecc based page write function
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        data buffer
+ * nand_write_page_hwecc - [REPLACEABLE] hardware ECC based page write function
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: data buffer
  */
 static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
                                   const uint8_t *buf)
@@ -1996,13 +2006,13 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_write_page_syndrome - [REPLACABLE] hardware ecc syndrom based page write
- * @mtd:        mtd info structure
- * @chip:       nand chip info structure
- * @buf:        data buffer
+ * nand_write_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page write
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+ * @buf: data buffer
  *
- * The hw generator calculates the error syndrome automatically. Therefor
- * we need a special oob layout and handling.
+ * The hw generator calculates the error syndrome automatically. Therefore we
+ * need a special oob layout and handling.
  */
 static void nand_write_page_syndrome(struct mtd_info *mtd,
                                     struct nand_chip *chip, const uint8_t *buf)
@@ -2041,12 +2051,12 @@ static void nand_write_page_syndrome(struct mtd_info *mtd,
 
 /**
  * nand_write_page - [REPLACEABLE] write one page
- * @mtd:        MTD device structure
- * @chip:       NAND chip descriptor
- * @buf:        the data to write
- * @page:       page number to write
- * @cached:     cached programming
- * @raw:        use _raw version of write_page
+ * @mtd: MTD device structure
+ * @chip: NAND chip descriptor
+ * @buf: the data to write
+ * @page: page number to write
+ * @cached: cached programming
+ * @raw: use _raw version of write_page
  */
 static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
                            const uint8_t *buf, int page, int cached, int raw)
@@ -2061,8 +2071,8 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
                 chip->ecc.write_page(mtd, chip, buf);
 
         /*
-         * Cached progamming disabled for now, Not sure if its worth the
-         * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s)
+         * Cached progamming disabled for now. Not sure if it's worth the
+         * trouble. The speed gain is not very impressive. (2.3->2.6Mib/s).
          */
         cached = 0;
 
@@ -2072,7 +2082,7 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
                 status = chip->waitfunc(mtd, chip);
                 /*
                  * See if operation failed and additional status checks are
-                 * available
+                 * available.
                  */
                 if ((status & NAND_STATUS_FAIL) && (chip->errstat))
                         status = chip->errstat(mtd, chip, FL_WRITING, status,
@@ -2096,29 +2106,37 @@ static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * nand_fill_oob - [Internal] Transfer client buffer to oob
- * @chip:       nand chip structure
- * @oob:        oob data buffer
- * @len:        oob data write length
- * @ops:        oob ops structure
+ * nand_fill_oob - [INTERN] Transfer client buffer to oob
+ * @mtd: MTD device structure
+ * @oob: oob data buffer
+ * @len: oob data write length
+ * @ops: oob ops structure
  */
-static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len,
-                                                struct mtd_oob_ops *ops)
+static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
+                              struct mtd_oob_ops *ops)
 {
+        struct nand_chip *chip = mtd->priv;
+
+        /*
+         * Initialise to all 0xFF, to avoid the possibility of left over OOB
+         * data from a previous OOB read.
+         */
+        memset(chip->oob_poi, 0xff, mtd->oobsize);
+
         switch (ops->mode) {
 
-        case MTD_OOB_PLACE:
-        case MTD_OOB_RAW:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_RAW:
                 memcpy(chip->oob_poi + ops->ooboffs, oob, len);
                 return oob + len;
 
-        case MTD_OOB_AUTO: {
+        case MTD_OPS_AUTO_OOB: {
                 struct nand_oobfree *free = chip->ecc.layout->oobfree;
                 uint32_t boffs = 0, woffs = ops->ooboffs;
                 size_t bytes = 0;
 
                 for (; free->length && len; free++, len -= bytes) {
-                        /* Write request not from offset 0 ? */
+                        /* Write request not from offset 0? */
                         if (unlikely(woffs)) {
                                 if (woffs >= free->length) {
                                         woffs -= free->length;
@@ -2146,12 +2164,12 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob, size_t len,
 #define NOTALIGNED(x)   ((x & (chip->subpagesize - 1)) != 0)
 
 /**
- * nand_do_write_ops - [Internal] NAND write with ECC
- * @mtd:        MTD device structure
- * @to:         offset to write to
- * @ops:        oob operations description structure
+ * nand_do_write_ops - [INTERN] NAND write with ECC
+ * @mtd: MTD device structure
+ * @to: offset to write to
+ * @ops: oob operations description structure
  *
- * NAND write with ECC
+ * NAND write with ECC.
  */
 static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
                              struct mtd_oob_ops *ops)
@@ -2161,7 +2179,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
         uint32_t writelen = ops->len;
 
         uint32_t oobwritelen = ops->ooblen;
-        uint32_t oobmaxlen = ops->mode == MTD_OOB_AUTO ?
+        uint32_t oobmaxlen = ops->mode == MTD_OPS_AUTO_OOB ?
                                 mtd->oobavail : mtd->oobsize;
 
         uint8_t *oob = ops->oobbuf;
@@ -2172,10 +2190,10 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
         if (!writelen)
                 return 0;
 
-        /* reject writes, which are not page aligned */
+        /* Reject writes, which are not page aligned */
         if (NOTALIGNED(to) || NOTALIGNED(ops->len)) {
-                printk(KERN_NOTICE "%s: Attempt to write not "
-                                "page aligned data\n", __func__);
+                pr_notice("%s: attempt to write non page aligned data\n",
+                           __func__);
                 return -EINVAL;
         }
 
@@ -2201,10 +2219,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
             (chip->pagebuf << chip->page_shift) < (to + ops->len))
                 chip->pagebuf = -1;
 
-        /* If we're not given explicit OOB data, let it be 0xFF */
-        if (likely(!oob))
-                memset(chip->oob_poi, 0xff, mtd->oobsize);
-
         /* Don't allow multipage oob writes with offset */
         if (oob && ops->ooboffs && (ops->ooboffs + ops->ooblen > oobmaxlen))
                 return -EINVAL;
@@ -2214,7 +2228,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
                 int cached = writelen > bytes && page != blockmask;
                 uint8_t *wbuf = buf;
 
-                /* Partial page write ? */
+                /* Partial page write? */
                 if (unlikely(column || writelen < (mtd->writesize - 1))) {
                         cached = 0;
                         bytes = min_t(int, bytes - column, (int) writelen);
@@ -2226,12 +2240,15 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 
                 if (unlikely(oob)) {
                         size_t len = min(oobwritelen, oobmaxlen);
-                        oob = nand_fill_oob(chip, oob, len, ops);
+                        oob = nand_fill_oob(mtd, oob, len, ops);
                         oobwritelen -= len;
+                } else {
+                        /* We still need to erase leftover OOB data */
+                        memset(chip->oob_poi, 0xff, mtd->oobsize);
                 }
 
                 ret = chip->write_page(mtd, chip, wbuf, page, cached,
-                                       (ops->mode == MTD_OOB_RAW));
+                                       (ops->mode == MTD_OPS_RAW));
                 if (ret)
                         break;
 
@@ -2260,11 +2277,11 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 
 /**
  * panic_nand_write - [MTD Interface] NAND write with ECC
- * @mtd:        MTD device structure
- * @to:         offset to write to
- * @len:        number of bytes to write
- * @retlen:     pointer to variable to store the number of written bytes
- * @buf:        the data to write
+ * @mtd: MTD device structure
+ * @to: offset to write to
+ * @len: number of bytes to write
+ * @retlen: pointer to variable to store the number of written bytes
+ * @buf: the data to write
  *
  * NAND write with ECC. Used when performing writes in interrupt context, this
  * may for example be called by mtdoops when writing an oops while in panic.
@@ -2273,6 +2290,7 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
                             size_t *retlen, const uint8_t *buf)
 {
         struct nand_chip *chip = mtd->priv;
+        struct mtd_oob_ops ops;
         int ret;
 
         /* Do not allow reads past end of device */
@@ -2281,36 +2299,38 @@ static int panic_nand_write(struct mtd_info *mtd, loff_t to, size_t len,
         if (!len)
                 return 0;
 
-        /* Wait for the device to get ready.  */
+        /* Wait for the device to get ready */
         panic_nand_wait(mtd, chip, 400);
 
-        /* Grab the device.  */
+        /* Grab the device */
         panic_nand_get_device(chip, mtd, FL_WRITING);
 
-        chip->ops.len = len;
-        chip->ops.datbuf = (uint8_t *)buf;
-        chip->ops.oobbuf = NULL;
+        ops.len = len;
+        ops.datbuf = (uint8_t *)buf;
+        ops.oobbuf = NULL;
+        ops.mode = 0;
 
-        ret = nand_do_write_ops(mtd, to, &chip->ops);
+        ret = nand_do_write_ops(mtd, to, &ops);
 
-        *retlen = chip->ops.retlen;
+        *retlen = ops.retlen;
         return ret;
 }
 
 /**
  * nand_write - [MTD Interface] NAND write with ECC
- * @mtd:        MTD device structure
- * @to:         offset to write to
- * @len:        number of bytes to write
- * @retlen:     pointer to variable to store the number of written bytes
- * @buf:        the data to write
+ * @mtd: MTD device structure
+ * @to: offset to write to
+ * @len: number of bytes to write
+ * @retlen: pointer to variable to store the number of written bytes
+ * @buf: the data to write
  *
- * NAND write with ECC
+ * NAND write with ECC.
  */
 static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
                           size_t *retlen, const uint8_t *buf)
 {
         struct nand_chip *chip = mtd->priv;
+        struct mtd_oob_ops ops;
         int ret;
 
         /* Do not allow reads past end of device */
@@ -2321,13 +2341,14 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 
         nand_get_device(chip, mtd, FL_WRITING);
 
-        chip->ops.len = len;
-        chip->ops.datbuf = (uint8_t *)buf;
-        chip->ops.oobbuf = NULL;
+        ops.len = len;
+        ops.datbuf = (uint8_t *)buf;
+        ops.oobbuf = NULL;
+        ops.mode = 0;
 
-        ret = nand_do_write_ops(mtd, to, &chip->ops);
+        ret = nand_do_write_ops(mtd, to, &ops);
 
-        *retlen = chip->ops.retlen;
+        *retlen = ops.retlen;
 
         nand_release_device(mtd);
 
@@ -2336,11 +2357,11 @@ static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
 
 /**
  * nand_do_write_oob - [MTD Interface] NAND write out-of-band
- * @mtd:        MTD device structure
- * @to:         offset to write to
- * @ops:        oob operation description structure
+ * @mtd: MTD device structure
+ * @to: offset to write to
+ * @ops: oob operation description structure
  *
- * NAND write out-of-band
+ * NAND write out-of-band.
  */
 static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
                              struct mtd_oob_ops *ops)
@@ -2348,24 +2369,24 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
         int chipnr, page, status, len;
         struct nand_chip *chip = mtd->priv;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n",
+        pr_debug("%s: to = 0x%08x, len = %i\n",
                          __func__, (unsigned int)to, (int)ops->ooblen);
 
-        if (ops->mode == MTD_OOB_AUTO)
+        if (ops->mode == MTD_OPS_AUTO_OOB)
                 len = chip->ecc.layout->oobavail;
         else
                 len = mtd->oobsize;
 
         /* Do not allow write past end of page */
         if ((ops->ooboffs + ops->ooblen) > len) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to write "
-                                "past end of page\n", __func__);
+                pr_debug("%s: attempt to write past end of page\n",
+                                __func__);
                 return -EINVAL;
         }
 
         if (unlikely(ops->ooboffs >= len)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start "
-                                "write outside oob\n", __func__);
+                pr_debug("%s: attempt to start write outside oob\n",
+                                __func__);
                 return -EINVAL;
         }
 
@@ -2374,8 +2395,8 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
                      ops->ooboffs + ops->ooblen >
                         ((mtd->size >> chip->page_shift) -
                          (to >> chip->page_shift)) * len)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond "
-                                "end of device\n", __func__);
+                pr_debug("%s: attempt to write beyond end of device\n",
+                                __func__);
                 return -EINVAL;
         }
 
@@ -2401,10 +2422,12 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
         if (page == chip->pagebuf)
                 chip->pagebuf = -1;
 
-        memset(chip->oob_poi, 0xff, mtd->oobsize);
-        nand_fill_oob(chip, ops->oobbuf, ops->ooblen, ops);
-        status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
-        memset(chip->oob_poi, 0xff, mtd->oobsize);
+        nand_fill_oob(mtd, ops->oobbuf, ops->ooblen, ops);
+
+        if (ops->mode == MTD_OPS_RAW)
+                status = chip->ecc.write_oob_raw(mtd, chip, page & chip->pagemask);
+        else
+                status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
 
         if (status)
                 return status;
@@ -2416,9 +2439,9 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
 
 /**
  * nand_write_oob - [MTD Interface] NAND write data and/or out-of-band
- * @mtd:        MTD device structure
- * @to:         offset to write to
- * @ops:        oob operation description structure
+ * @mtd: MTD device structure
+ * @to: offset to write to
+ * @ops: oob operation description structure
  */
 static int nand_write_oob(struct mtd_info *mtd, loff_t to,
                           struct mtd_oob_ops *ops)
@@ -2430,17 +2453,17 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
 
         /* Do not allow writes past end of device */
         if (ops->datbuf && (to + ops->len) > mtd->size) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond "
-                                "end of device\n", __func__);
+                pr_debug("%s: attempt to write beyond end of device\n",
+                                __func__);
                 return -EINVAL;
         }
 
         nand_get_device(chip, mtd, FL_WRITING);
 
         switch (ops->mode) {
-        case MTD_OOB_PLACE:
-        case MTD_OOB_AUTO:
-        case MTD_OOB_RAW:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_AUTO_OOB:
+        case MTD_OPS_RAW:
                 break;
 
         default:
@@ -2458,11 +2481,11 @@ out:
 }
 
 /**
- * single_erease_cmd - [GENERIC] NAND standard block erase command function
- * @mtd:        MTD device structure
- * @page:       the page address of the block which will be erased
+ * single_erase_cmd - [GENERIC] NAND standard block erase command function
+ * @mtd: MTD device structure
+ * @page: the page address of the block which will be erased
  *
- * Standard erase command for NAND chips
+ * Standard erase command for NAND chips.
  */
 static void single_erase_cmd(struct mtd_info *mtd, int page)
 {
@@ -2473,12 +2496,11 @@ static void single_erase_cmd(struct mtd_info *mtd, int page)
 }
 
 /**
- * multi_erease_cmd - [GENERIC] AND specific block erase command function
- * @mtd:        MTD device structure
- * @page:       the page address of the block which will be erased
+ * multi_erase_cmd - [GENERIC] AND specific block erase command function
+ * @mtd: MTD device structure
+ * @page: the page address of the block which will be erased
  *
- * AND multi block erase command function
- * Erase 4 consecutive blocks
+ * AND multi block erase command function. Erase 4 consecutive blocks.
  */
 static void multi_erase_cmd(struct mtd_info *mtd, int page)
 {
@@ -2493,10 +2515,10 @@ static void multi_erase_cmd(struct mtd_info *mtd, int page)
 
 /**
  * nand_erase - [MTD Interface] erase block(s)
- * @mtd:        MTD device structure
- * @instr:      erase instruction
+ * @mtd: MTD device structure
+ * @instr: erase instruction
  *
- * Erase one ore more blocks
+ * Erase one ore more blocks.
  */
 static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
 {
@@ -2505,12 +2527,12 @@ static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 #define BBT_PAGE_MASK   0xffffff3f
 /**
- * nand_erase_nand - [Internal] erase block(s)
- * @mtd:        MTD device structure
- * @instr:      erase instruction
- * @allowbbt:   allow erasing the bbt area
+ * nand_erase_nand - [INTERN] erase block(s)
+ * @mtd: MTD device structure
+ * @instr: erase instruction
+ * @allowbbt: allow erasing the bbt area
  *
- * Erase one ore more blocks
+ * Erase one ore more blocks.
  */
 int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
                     int allowbbt)
@@ -2521,9 +2543,9 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
         unsigned int bbt_masked_page = 0xffffffff;
         loff_t len;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n",
-                                __func__, (unsigned long long)instr->addr,
-                                (unsigned long long)instr->len);
+        pr_debug("%s: start = 0x%012llx, len = %llu\n",
+                        __func__, (unsigned long long)instr->addr,
+                        (unsigned long long)instr->len);
 
         if (check_offs_len(mtd, instr->addr, instr->len))
                 return -EINVAL;
@@ -2545,8 +2567,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 
         /* Check, if it is write protected */
         if (nand_check_wp(mtd)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n",
-                                        __func__);
+                pr_debug("%s: device is write protected!\n",
+                                __func__);
                 instr->state = MTD_ERASE_FAILED;
                 goto erase_exit;
         }
@@ -2555,7 +2577,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
          * If BBT requires refresh, set the BBT page mask to see if the BBT
          * should be rewritten. Otherwise the mask is set to 0xffffffff which
          * can not be matched. This is also done when the bbt is actually
-         * erased to avoid recusrsive updates
+         * erased to avoid recursive updates.
          */
         if (chip->options & BBT_AUTO_REFRESH && !allowbbt)
                 bbt_masked_page = chip->bbt_td->pages[chipnr] & BBT_PAGE_MASK;
@@ -2566,20 +2588,18 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
         instr->state = MTD_ERASING;
 
         while (len) {
-                /*
-                 * heck if we have a bad block, we do not erase bad blocks !
-                 */
+                /* Heck if we have a bad block, we do not erase bad blocks! */
                 if (nand_block_checkbad(mtd, ((loff_t) page) <<
                                         chip->page_shift, 0, allowbbt)) {
-                        printk(KERN_WARNING "%s: attempt to erase a bad block "
-                                        "at page 0x%08x\n", __func__, page);
+                        pr_warn("%s: attempt to erase a bad block at page 0x%08x\n",
+                                    __func__, page);
                         instr->state = MTD_ERASE_FAILED;
                         goto erase_exit;
                 }
 
                 /*
                  * Invalidate the page cache, if we erase the block which
-                 * contains the current cached page
+                 * contains the current cached page.
                  */
                 if (page <= chip->pagebuf && chip->pagebuf <
                     (page + pages_per_block))
@@ -2599,8 +2619,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 
                 /* See if block erase succeeded */
                 if (status & NAND_STATUS_FAIL) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "%s: Failed erase, "
-                                        "page 0x%08x\n", __func__, page);
+                        pr_debug("%s: failed erase, page 0x%08x\n",
+                                        __func__, page);
                         instr->state = MTD_ERASE_FAILED;
                         instr->fail_addr =
                                 ((loff_t)page << chip->page_shift);
@@ -2609,7 +2629,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 
                 /*
                  * If BBT requires refresh, set the BBT rewrite flag to the
-                 * page being erased
+                 * page being erased.
                  */
                 if (bbt_masked_page != 0xffffffff &&
                     (page & BBT_PAGE_MASK) == bbt_masked_page)
@@ -2628,7 +2648,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
 
                         /*
                          * If BBT requires refresh and BBT-PERCHIP, set the BBT
-                         * page mask to see if this BBT should be rewritten
+                         * page mask to see if this BBT should be rewritten.
                          */
                         if (bbt_masked_page != 0xffffffff &&
                             (chip->bbt_td->options & NAND_BBT_PERCHIP))
@@ -2651,7 +2671,7 @@ erase_exit:
 
         /*
          * If BBT requires refresh and erase was successful, rewrite any
-         * selected bad block tables
+         * selected bad block tables.
          */
         if (bbt_masked_page == 0xffffffff || ret)
                 return ret;
@@ -2659,10 +2679,10 @@ erase_exit:
         for (chipnr = 0; chipnr < chip->numchips; chipnr++) {
                 if (!rewrite_bbt[chipnr])
                         continue;
-                /* update the BBT for chip */
-                DEBUG(MTD_DEBUG_LEVEL0, "%s: nand_update_bbt "
-                        "(%d:0x%0llx 0x%0x)\n", __func__, chipnr,
-                        rewrite_bbt[chipnr], chip->bbt_td->pages[chipnr]);
+                /* Update the BBT for chip */
+                pr_debug("%s: nand_update_bbt (%d:0x%0llx 0x%0x)\n",
+                                __func__, chipnr, rewrite_bbt[chipnr],
+                                chip->bbt_td->pages[chipnr]);
                 nand_update_bbt(mtd, rewrite_bbt[chipnr]);
         }
 
@@ -2672,15 +2692,15 @@ erase_exit:
 
 /**
  * nand_sync - [MTD Interface] sync
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  *
- * Sync is actually a wait for chip ready function
+ * Sync is actually a wait for chip ready function.
  */
 static void nand_sync(struct mtd_info *mtd)
 {
         struct nand_chip *chip = mtd->priv;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: called\n", __func__);
+        pr_debug("%s: called\n", __func__);
 
         /* Grab the lock and see if the device is available */
         nand_get_device(chip, mtd, FL_SYNCING);
@@ -2690,8 +2710,8 @@ static void nand_sync(struct mtd_info *mtd)
 
 /**
  * nand_block_isbad - [MTD Interface] Check if block at offset is bad
- * @mtd:        MTD device structure
- * @offs:       offset relative to mtd start
+ * @mtd: MTD device structure
+ * @offs: offset relative to mtd start
  */
 static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
 {
@@ -2704,8 +2724,8 @@ static int nand_block_isbad(struct mtd_info *mtd, loff_t offs)
 
 /**
  * nand_block_markbad - [MTD Interface] Mark block at the given offset as bad
- * @mtd:        MTD device structure
- * @ofs:        offset relative to mtd start
+ * @mtd: MTD device structure
+ * @ofs: offset relative to mtd start
  */
 static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
@@ -2714,7 +2734,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
         ret = nand_block_isbad(mtd, ofs);
         if (ret) {
-                /* If it was bad already, return success and do nothing. */
+                /* If it was bad already, return success and do nothing */
                 if (ret > 0)
                         return 0;
                 return ret;
@@ -2725,7 +2745,7 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
 /**
  * nand_suspend - [MTD Interface] Suspend the NAND flash
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  */
 static int nand_suspend(struct mtd_info *mtd)
 {
@@ -2736,7 +2756,7 @@ static int nand_suspend(struct mtd_info *mtd)
 
 /**
  * nand_resume - [MTD Interface] Resume the NAND flash
- * @mtd:        MTD device structure
+ * @mtd: MTD device structure
  */
 static void nand_resume(struct mtd_info *mtd)
 {
@@ -2745,13 +2765,11 @@ static void nand_resume(struct mtd_info *mtd)
         if (chip->state == FL_PM_SUSPENDED)
                 nand_release_device(mtd);
         else
-                printk(KERN_ERR "%s called for a chip which is not "
-                       "in suspended state\n", __func__);
+                pr_err("%s called for a chip which is not in suspended state\n",
+                        __func__);
 }
 
-/*
- * Set default functions
- */
+/* Set default functions */
 static void nand_set_defaults(struct nand_chip *chip, int busw)
 {
         /* check for proper chip_delay setup, set 20us if not */
@@ -2793,23 +2811,21 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
 
 }
 
-/*
- * sanitize ONFI strings so we can safely print them
- */
+/* Sanitize ONFI strings so we can safely print them */
 static void sanitize_string(uint8_t *s, size_t len)
 {
         ssize_t i;
 
-        /* null terminate */
+        /* Null terminate */
         s[len - 1] = 0;
 
-        /* remove non printable chars */
+        /* Remove non printable chars */
         for (i = 0; i < len - 1; i++) {
                 if (s[i] < ' ' || s[i] > 127)
                         s[i] = '?';
         }
 
-        /* remove trailing spaces */
+        /* Remove trailing spaces */
         strim(s);
 }
 
@@ -2826,28 +2842,28 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
 }
 
 /*
- * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise
+ * Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise.
  */
 static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
-                                        int busw)
+                                        int *busw)
 {
         struct nand_onfi_params *p = &chip->onfi_params;
         int i;
         int val;
 
-        /* try ONFI for unknow chip or LP */
+        /* Try ONFI for unknown chip or LP */
         chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1);
         if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' ||
                 chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I')
                 return 0;
 
-        printk(KERN_INFO "ONFI flash detected\n");
+        pr_info("ONFI flash detected\n");
         chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1);
         for (i = 0; i < 3; i++) {
                 chip->read_buf(mtd, (uint8_t *)p, sizeof(*p));
                 if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) ==
                                 le16_to_cpu(p->crc)) {
-                        printk(KERN_INFO "ONFI param page %d valid\n", i);
+                        pr_info("ONFI param page %d valid\n", i);
                         break;
                 }
         }
@@ -2855,7 +2871,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
         if (i == 3)
                 return 0;
 
-        /* check version */
+        /* Check version */
         val = le16_to_cpu(p->revision);
         if (val & (1 << 5))
                 chip->onfi_version = 23;
@@ -2871,8 +2887,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
                 chip->onfi_version = 0;
 
         if (!chip->onfi_version) {
-                printk(KERN_INFO "%s: unsupported ONFI version: %d\n",
-                                                                __func__, val);
+                pr_info("%s: unsupported ONFI version: %d\n", __func__, val);
                 return 0;
         }
 
@@ -2884,9 +2899,9 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
         mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize;
         mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
         chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * mtd->erasesize;
-        busw = 0;
+        *busw = 0;
         if (le16_to_cpu(p->features) & 1)
-                busw = NAND_BUSWIDTH_16;
+                *busw = NAND_BUSWIDTH_16;
 
         chip->options &= ~NAND_CHIPOPTIONS_MSK;
         chip->options |= (NAND_NO_READRDY |
@@ -2896,7 +2911,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /*
- * Get the flash and manufacturer id and lookup if the type is supported
+ * Get the flash and manufacturer id and lookup if the type is supported.
  */
 static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                                                   struct nand_chip *chip,
@@ -2913,7 +2928,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
 
         /*
          * Reset the chip, required by some chips (e.g. Micron MT29FxGxxxxx)
-         * after power-up
+         * after power-up.
          */
         chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
 
@@ -2924,7 +2939,8 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
         *maf_id = chip->read_byte(mtd);
         *dev_id = chip->read_byte(mtd);
 
-        /* Try again to make sure, as some systems the bus-hold or other
+        /*
+         * Try again to make sure, as some systems the bus-hold or other
          * interface concerns can cause random data which looks like a
          * possibly credible NAND flash to appear. If the two results do
          * not match, ignore the device completely.
@@ -2936,9 +2952,9 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                 id_data[i] = chip->read_byte(mtd);
 
         if (id_data[0] != *maf_id || id_data[1] != *dev_id) {
-                printk(KERN_INFO "%s: second ID read did not match "
-                       "%02x,%02x against %02x,%02x\n", __func__,
-                       *maf_id, *dev_id, id_data[0], id_data[1]);
+                pr_info("%s: second ID read did not match "
+                        "%02x,%02x against %02x,%02x\n", __func__,
+                        *maf_id, *dev_id, id_data[0], id_data[1]);
                 return ERR_PTR(-ENODEV);
         }
 
@@ -2952,7 +2968,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
         chip->onfi_version = 0;
         if (!type->name || !type->pagesize) {
                 /* Check is chip is ONFI compliant */
-                ret = nand_flash_detect_onfi(mtd, chip, busw);
+                ret = nand_flash_detect_onfi(mtd, chip, &busw);
                 if (ret)
                         goto ident_done;
         }
@@ -2973,7 +2989,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
         chip->chipsize = (uint64_t)type->chipsize << 20;
 
         if (!type->pagesize && chip->init_size) {
-                /* set the pagesize, oobsize, erasesize by the driver*/
+                /* Set the pagesize, oobsize, erasesize by the driver */
                 busw = chip->init_size(mtd, chip, id_data);
         } else if (!type->pagesize) {
                 int extid;
@@ -3033,7 +3049,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                 }
         } else {
                 /*
-                 * Old devices have chip data hardcoded in the device id table
+                 * Old devices have chip data hardcoded in the device id table.
                  */
                 mtd->erasesize = type->erasesize;
                 mtd->writesize = type->pagesize;
@@ -3043,7 +3059,7 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
                 /*
                  * Check for Spansion/AMD ID + repeating 5th, 6th byte since
                  * some Spansion chips have erasesize that conflicts with size
-                 * listed in nand_ids table
+                 * listed in nand_ids table.
                  * Data sheet (5 byte ID): Spansion S30ML-P ORNAND (p.39)
                  */
                 if (*maf_id == NAND_MFR_AMD && id_data[4] != 0x00 &&
@@ -3057,15 +3073,16 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
         chip->options &= ~NAND_CHIPOPTIONS_MSK;
         chip->options |= type->options & NAND_CHIPOPTIONS_MSK;
 
-        /* Check if chip is a not a samsung device. Do not clear the
-         * options for chips which are not having an extended id.
+        /*
+         * Check if chip is not a Samsung device. Do not clear the
+         * options for chips which do not have an extended id.
          */
         if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize)
                 chip->options &= ~NAND_SAMSUNG_LP_OPTIONS;
 ident_done:
 
         /*
-         * Set chip as a default. Board drivers can override it, if necessary
+         * Set chip as a default. Board drivers can override it, if necessary.
          */
         chip->options |= NAND_NO_AUTOINCR;
 
@@ -3077,21 +3094,21 @@ ident_done:
 
         /*
          * Check, if buswidth is correct. Hardware drivers should set
-         * chip correct !
+         * chip correct!
          */
         if (busw != (chip->options & NAND_BUSWIDTH_16)) {
-                printk(KERN_INFO "NAND device: Manufacturer ID:"
-                       " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id,
-                       *dev_id, nand_manuf_ids[maf_idx].name, mtd->name);
-                printk(KERN_WARNING "NAND bus width %d instead %d bit\n",
-                       (chip->options & NAND_BUSWIDTH_16) ? 16 : 8,
-                       busw ? 16 : 8);
+                pr_info("NAND device: Manufacturer ID:"
+                        " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id,
+                        *dev_id, nand_manuf_ids[maf_idx].name, mtd->name);
+                pr_warn("NAND bus width %d instead %d bit\n",
+                           (chip->options & NAND_BUSWIDTH_16) ? 16 : 8,
+                           busw ? 16 : 8);
                 return ERR_PTR(-EINVAL);
         }
 
         /* Calculate the address shift from the page size */
         chip->page_shift = ffs(mtd->writesize) - 1;
-        /* Convert chipsize to number of pages per chip -1. */
+        /* Convert chipsize to number of pages per chip -1 */
         chip->pagemask = (chip->chipsize >> chip->page_shift) - 1;
 
         chip->bbt_erase_shift = chip->phys_erase_shift =
@@ -3121,7 +3138,7 @@ ident_done:
         if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
                         (*maf_id == NAND_MFR_SAMSUNG ||
                          *maf_id == NAND_MFR_HYNIX))
-                chip->options |= NAND_BBT_SCANLASTPAGE;
+                chip->bbt_options |= NAND_BBT_SCANLASTPAGE;
         else if ((!(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
                                 (*maf_id == NAND_MFR_SAMSUNG ||
                                  *maf_id == NAND_MFR_HYNIX ||
@@ -3129,17 +3146,7 @@ ident_done:
                                  *maf_id == NAND_MFR_AMD)) ||
                         (mtd->writesize == 2048 &&
                          *maf_id == NAND_MFR_MICRON))
-                chip->options |= NAND_BBT_SCAN2NDPAGE;
-
-        /*
-         * Numonyx/ST 2K pages, x8 bus use BOTH byte 1 and 6
-         */
-        if (!(busw & NAND_BUSWIDTH_16) &&
-                        *maf_id == NAND_MFR_STMICRO &&
-                        mtd->writesize == 2048) {
-                chip->options |= NAND_BBT_SCANBYTE1AND6;
-                chip->badblockpos = 0;
-        }
+                chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
 
         /* Check for AND chips with 4 page planes */
         if (chip->options & NAND_4PAGE_ARRAY)
@@ -3147,12 +3154,11 @@ ident_done:
         else
                 chip->erase_cmd = single_erase_cmd;
 
-        /* Do not replace user supplied command function ! */
+        /* Do not replace user supplied command function! */
         if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
                 chip->cmdfunc = nand_command_lp;
 
-        /* TODO onfi flash name */
-        printk(KERN_INFO "NAND device: Manufacturer ID:"
+        pr_info("NAND device: Manufacturer ID:"
                 " 0x%02x, Chip ID: 0x%02x (%s %s)\n", *maf_id, *dev_id,
                 nand_manuf_ids[maf_idx].name,
                 chip->onfi_version ? chip->onfi_params.model : type->name);
@@ -3162,12 +3168,12 @@ ident_done:
 
 /**
  * nand_scan_ident - [NAND Interface] Scan for the NAND device
- * @mtd:             MTD device structure
- * @maxchips:        Number of chips to scan for
- * @table:           Alternative NAND ID table
+ * @mtd: MTD device structure
+ * @maxchips: number of chips to scan for
+ * @table: alternative NAND ID table
  *
- * This is the first phase of the normal nand_scan() function. It
- * reads the flash ID and sets up MTD fields accordingly.
+ * This is the first phase of the normal nand_scan() function. It reads the
+ * flash ID and sets up MTD fields accordingly.
  *
  * The mtd->owner field must be set to the module of the caller.
  */
@@ -3189,7 +3195,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
 
         if (IS_ERR(type)) {
                 if (!(chip->options & NAND_SCAN_SILENT_NODEV))
-                        printk(KERN_WARNING "No NAND device found.\n");
+                        pr_warn("No NAND device found\n");
                 chip->select_chip(mtd, -1);
                 return PTR_ERR(type);
         }
@@ -3207,7 +3213,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
                         break;
         }
         if (i > 1)
-                printk(KERN_INFO "%d NAND chips detected\n", i);
+                pr_info("%d NAND chips detected\n", i);
 
         /* Store the number of chips and calc total size for mtd */
         chip->numchips = i;
@@ -3220,11 +3226,11 @@ EXPORT_SYMBOL(nand_scan_ident);
 
 /**
  * nand_scan_tail - [NAND Interface] Scan for the NAND device
- * @mtd:            MTD device structure
+ * @mtd: MTD device structure
  *
- * This is the second phase of the normal nand_scan() function. It
- * fills out all the uninitialized function pointers with the defaults
- * and scans for a bad block table if appropriate.
+ * This is the second phase of the normal nand_scan() function. It fills out
+ * all the uninitialized function pointers with the defaults and scans for a
+ * bad block table if appropriate.
  */
 int nand_scan_tail(struct mtd_info *mtd)
 {
@@ -3240,7 +3246,7 @@ int nand_scan_tail(struct mtd_info *mtd)
         chip->oob_poi = chip->buffers->databuf + mtd->writesize;
 
         /*
-         * If no default placement scheme is given, select an appropriate one
+         * If no default placement scheme is given, select an appropriate one.
          */
         if (!chip->ecc.layout && (chip->ecc.mode != NAND_ECC_SOFT_BCH)) {
                 switch (mtd->oobsize) {
@@ -3257,8 +3263,8 @@ int nand_scan_tail(struct mtd_info *mtd)
                         chip->ecc.layout = &nand_oob_128;
                         break;
                 default:
-                        printk(KERN_WARNING "No oob scheme defined for "
-                               "oobsize %d\n", mtd->oobsize);
+                        pr_warn("No oob scheme defined for oobsize %d\n",
+                                   mtd->oobsize);
                         BUG();
                 }
         }
@@ -3267,7 +3273,7 @@ int nand_scan_tail(struct mtd_info *mtd)
                 chip->write_page = nand_write_page;
 
         /*
-         * check ECC mode, default to software if 3byte/512byte hardware ECC is
+         * Check ECC mode, default to software if 3byte/512byte hardware ECC is
          * selected and we have 256 byte pagesize fallback to software ECC
          */
 
@@ -3276,15 +3282,15 @@ int nand_scan_tail(struct mtd_info *mtd)
                 /* Similar to NAND_ECC_HW, but a separate read_page handle */
                 if (!chip->ecc.calculate || !chip->ecc.correct ||
                      !chip->ecc.hwctl) {
-                        printk(KERN_WARNING "No ECC functions supplied; "
-                               "Hardware ECC not possible\n");
+                        pr_warn("No ECC functions supplied; "
+                                   "hardware ECC not possible\n");
                         BUG();
                 }
                 if (!chip->ecc.read_page)
                         chip->ecc.read_page = nand_read_page_hwecc_oob_first;
 
         case NAND_ECC_HW:
-                /* Use standard hwecc read page function ? */
+                /* Use standard hwecc read page function? */
                 if (!chip->ecc.read_page)
                         chip->ecc.read_page = nand_read_page_hwecc;
                 if (!chip->ecc.write_page)
@@ -3305,11 +3311,11 @@ int nand_scan_tail(struct mtd_info *mtd)
                      chip->ecc.read_page == nand_read_page_hwecc ||
                      !chip->ecc.write_page ||
                      chip->ecc.write_page == nand_write_page_hwecc)) {
-                        printk(KERN_WARNING "No ECC functions supplied; "
-                               "Hardware ECC not possible\n");
+                        pr_warn("No ECC functions supplied; "
+                                   "hardware ECC not possible\n");
                         BUG();
                 }
-                /* Use standard syndrome read/write page function ? */
+                /* Use standard syndrome read/write page function? */
                 if (!chip->ecc.read_page)
                         chip->ecc.read_page = nand_read_page_syndrome;
                 if (!chip->ecc.write_page)
@@ -3325,9 +3331,9 @@ int nand_scan_tail(struct mtd_info *mtd)
 
                 if (mtd->writesize >= chip->ecc.size)
                         break;
-                printk(KERN_WARNING "%d byte HW ECC not possible on "
-                       "%d byte page size, fallback to SW ECC\n",
-                       chip->ecc.size, mtd->writesize);
+                pr_warn("%d byte HW ECC not possible on "
+                           "%d byte page size, fallback to SW ECC\n",
+                           chip->ecc.size, mtd->writesize);
                 chip->ecc.mode = NAND_ECC_SOFT;
 
         case NAND_ECC_SOFT:
@@ -3347,7 +3353,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 
         case NAND_ECC_SOFT_BCH:
                 if (!mtd_nand_has_bch()) {
-                        printk(KERN_WARNING "CONFIG_MTD_ECC_BCH not enabled\n");
+                        pr_warn("CONFIG_MTD_ECC_BCH not enabled\n");
                         BUG();
                 }
                 chip->ecc.calculate = nand_bch_calculate_ecc;
@@ -3362,8 +3368,8 @@ int nand_scan_tail(struct mtd_info *mtd)
                 /*
                  * Board driver should supply ecc.size and ecc.bytes values to
                  * select how many bits are correctable; see nand_bch_init()
-                 * for details.
-                 * Otherwise, default to 4 bits for large page devices
+                 * for details. Otherwise, default to 4 bits for large page
+                 * devices.
                  */
                 if (!chip->ecc.size && (mtd->oobsize >= 64)) {
                         chip->ecc.size = 512;
@@ -3374,14 +3380,14 @@ int nand_scan_tail(struct mtd_info *mtd)
                                                chip->ecc.bytes,
                                                &chip->ecc.layout);
                 if (!chip->ecc.priv) {
-                        printk(KERN_WARNING "BCH ECC initialization failed!\n");
+                        pr_warn("BCH ECC initialization failed!\n");
                         BUG();
                 }
                 break;
 
         case NAND_ECC_NONE:
-                printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. "
-                       "This is not recommended !!\n");
+                pr_warn("NAND_ECC_NONE selected by board driver. "
+                           "This is not recommended!\n");
                 chip->ecc.read_page = nand_read_page_raw;
                 chip->ecc.write_page = nand_write_page_raw;
                 chip->ecc.read_oob = nand_read_oob_std;
@@ -3393,14 +3399,19 @@ int nand_scan_tail(struct mtd_info *mtd)
                 break;
 
         default:
-                printk(KERN_WARNING "Invalid NAND_ECC_MODE %d\n",
-                       chip->ecc.mode);
+                pr_warn("Invalid NAND_ECC_MODE %d\n", chip->ecc.mode);
                 BUG();
         }
 
+        /* For many systems, the standard OOB write also works for raw */
+        if (!chip->ecc.read_oob_raw)
+                chip->ecc.read_oob_raw = chip->ecc.read_oob;
+        if (!chip->ecc.write_oob_raw)
+                chip->ecc.write_oob_raw = chip->ecc.write_oob;
+
         /*
          * The number of bytes available for a client to place data into
-         * the out of band area
+         * the out of band area.
          */
         chip->ecc.layout->oobavail = 0;
         for (i = 0; chip->ecc.layout->oobfree[i].length
@@ -3411,19 +3422,16 @@ int nand_scan_tail(struct mtd_info *mtd)
 
         /*
          * Set the number of read / write steps for one page depending on ECC
-         * mode
+         * mode.
          */
         chip->ecc.steps = mtd->writesize / chip->ecc.size;
         if (chip->ecc.steps * chip->ecc.size != mtd->writesize) {
-                printk(KERN_WARNING "Invalid ecc parameters\n");
+                pr_warn("Invalid ECC parameters\n");
                 BUG();
         }
         chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
 
-        /*
-         * Allow subpage writes up to ecc.steps. Not possible for MLC
-         * FLASH.
-         */
+        /* Allow subpage writes up to ecc.steps. Not possible for MLC flash */
         if (!(chip->options & NAND_NO_SUBPAGE_WRITE) &&
             !(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) {
                 switch (chip->ecc.steps) {
@@ -3481,9 +3489,11 @@ int nand_scan_tail(struct mtd_info *mtd)
 }
 EXPORT_SYMBOL(nand_scan_tail);
 
-/* is_module_text_address() isn't exported, and it's mostly a pointless
+/*
+ * is_module_text_address() isn't exported, and it's mostly a pointless
  * test if this is a module _anyway_ -- they'd have to try _really_ hard
- * to call us from in-kernel code if the core NAND support is modular. */
+ * to call us from in-kernel code if the core NAND support is modular.
+ */
 #ifdef MODULE
 #define caller_is_module() (1)
 #else
@@ -3493,15 +3503,13 @@ EXPORT_SYMBOL(nand_scan_tail);
 
 /**
  * nand_scan - [NAND Interface] Scan for the NAND device
- * @mtd:        MTD device structure
- * @maxchips:   Number of chips to scan for
- *
- * This fills out all the uninitialized function pointers
- * with the defaults.
- * The flash ID is read and the mtd/chip structures are
- * filled with the appropriate values.
- * The mtd->owner field must be set to the module of the caller
+ * @mtd: MTD device structure
+ * @maxchips: number of chips to scan for
  *
+ * This fills out all the uninitialized function pointers with the defaults.
+ * The flash ID is read and the mtd/chip structures are filled with the
+ * appropriate values. The mtd->owner field must be set to the module of the
+ * caller.
  */
 int nand_scan(struct mtd_info *mtd, int maxchips)
 {
@@ -3509,8 +3517,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
 
         /* Many callers got this wrong, so check for it for a while... */
         if (!mtd->owner && caller_is_module()) {
-                printk(KERN_CRIT "%s called with NULL mtd->owner!\n",
-                                __func__);
+                pr_crit("%s called with NULL mtd->owner!\n", __func__);
                 BUG();
         }
 
@@ -3523,8 +3530,8 @@ EXPORT_SYMBOL(nand_scan);
 
 /**
  * nand_release - [NAND Interface] Free resources held by the NAND device
- * @mtd:        MTD device structure
-*/
+ * @mtd: MTD device structure
+ */
 void nand_release(struct mtd_info *mtd)
 {
         struct nand_chip *chip = mtd->priv;
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 4165857752ca..69148ae3bf58 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -14,7 +14,7 @@
  *
  * When nand_scan_bbt is called, then it tries to find the bad block table
  * depending on the options in the BBT descriptor(s). If no flash based BBT
- * (NAND_USE_FLASH_BBT) is specified then the device is scanned for factory
+ * (NAND_BBT_USE_FLASH) is specified then the device is scanned for factory
  * marked good / bad blocks. This information is used to create a memory BBT.
  * Once a new bad block is discovered then the "factory" information is updated
  * on the device.
@@ -36,9 +36,9 @@
  * The table is marked in the OOB area with an ident pattern and a version
  * number which indicates which of both tables is more up to date. If the NAND
  * controller needs the complete OOB area for the ECC information then the
- * option NAND_USE_FLASH_BBT_NO_OOB should be used: it moves the ident pattern
- * and the version byte into the data area and the OOB area will remain
- * untouched.
+ * option NAND_BBT_NO_OOB should be used (along with NAND_BBT_USE_FLASH, of
+ * course): it moves the ident pattern and the version byte into the data area
+ * and the OOB area will remain untouched.
  *
  * The table uses 2 bits per block
  * 11b:         block is good
@@ -81,17 +81,15 @@ static int check_pattern_no_oob(uint8_t *buf, struct nand_bbt_descr *td)
 
 /**
  * check_pattern - [GENERIC] check if a pattern is in the buffer
- * @buf:        the buffer to search
- * @len:        the length of buffer to search
- * @paglen:     the pagelength
- * @td:         search pattern descriptor
+ * @buf: the buffer to search
+ * @len: the length of buffer to search
+ * @paglen: the pagelength
+ * @td: search pattern descriptor
  *
- * Check for a pattern at the given place. Used to search bad block
- * tables and good / bad block identifiers.
- * If the SCAN_EMPTY option is set then check, if all bytes except the
- * pattern area contain 0xff
- *
-*/
+ * Check for a pattern at the given place. Used to search bad block tables and
+ * good / bad block identifiers. If the SCAN_EMPTY option is set then check, if
+ * all bytes except the pattern area contain 0xff.
+ */
 static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_descr *td)
 {
         int i, end = 0;
@@ -110,32 +108,8 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc
         p += end;
 
         /* Compare the pattern */
-        for (i = 0; i < td->len; i++) {
-                if (p[i] != td->pattern[i])
-                        return -1;
-        }
-
-        /* Check both positions 1 and 6 for pattern? */
-        if (td->options & NAND_BBT_SCANBYTE1AND6) {
-                if (td->options & NAND_BBT_SCANEMPTY) {
-                        p += td->len;
-                        end += NAND_SMALL_BADBLOCK_POS - td->offs;
-                        /* Check region between positions 1 and 6 */
-                        for (i = 0; i < NAND_SMALL_BADBLOCK_POS - td->offs - td->len;
-                                        i++) {
-                                if (*p++ != 0xff)
-                                        return -1;
-                        }
-                }
-                else {
-                        p += NAND_SMALL_BADBLOCK_POS - td->offs;
-                }
-                /* Compare the pattern */
-                for (i = 0; i < td->len; i++) {
-                        if (p[i] != td->pattern[i])
-                                return -1;
-                }
-        }
+        if (memcmp(p, td->pattern, td->len))
+                return -1;
 
         if (td->options & NAND_BBT_SCANEMPTY) {
                 p += td->len;
@@ -150,14 +124,13 @@ static int check_pattern(uint8_t *buf, int len, int paglen, struct nand_bbt_desc
 
 /**
  * check_short_pattern - [GENERIC] check if a pattern is in the buffer
- * @buf:        the buffer to search
- * @td:         search pattern descriptor
- *
- * Check for a pattern at the given place. Used to search bad block
- * tables and good / bad block identifiers. Same as check_pattern, but
- * no optional empty check
+ * @buf: the buffer to search
+ * @td: search pattern descriptor
  *
-*/
+ * Check for a pattern at the given place. Used to search bad block tables and
+ * good / bad block identifiers. Same as check_pattern, but no optional empty
+ * check.
+ */
 static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
 {
         int i;
@@ -168,21 +141,14 @@ static int check_short_pattern(uint8_t *buf, struct nand_bbt_descr *td)
                 if (p[td->offs + i] != td->pattern[i])
                         return -1;
         }
-        /* Need to check location 1 AND 6? */
-        if (td->options & NAND_BBT_SCANBYTE1AND6) {
-                for (i = 0; i < td->len; i++) {
-                        if (p[NAND_SMALL_BADBLOCK_POS + i] != td->pattern[i])
-                                return -1;
-                }
-        }
         return 0;
 }
 
 /**
  * add_marker_len - compute the length of the marker in data area
- * @td:         BBT descriptor used for computation
+ * @td: BBT descriptor used for computation
  *
- * The length will be 0 if the markeris located in OOB area.
+ * The length will be 0 if the marker is located in OOB area.
  */
 static u32 add_marker_len(struct nand_bbt_descr *td)
 {
@@ -199,34 +165,33 @@ static u32 add_marker_len(struct nand_bbt_descr *td)
 
 /**
  * read_bbt - [GENERIC] Read the bad block table starting from page
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @page:       the starting page
- * @num:        the number of bbt descriptors to read
- * @td:         the bbt describtion table
- * @offs:       offset in the memory table
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @page: the starting page
+ * @num: the number of bbt descriptors to read
+ * @td: the bbt describtion table
+ * @offs: offset in the memory table
  *
  * Read the bad block table starting from page.
- *
  */
 static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
                 struct nand_bbt_descr *td, int offs)
 {
-        int res, i, j, act = 0;
+        int res, ret = 0, i, j, act = 0;
         struct nand_chip *this = mtd->priv;
         size_t retlen, len, totlen;
         loff_t from;
         int bits = td->options & NAND_BBT_NRBITS_MSK;
-        uint8_t msk = (uint8_t) ((1 << bits) - 1);
+        uint8_t msk = (uint8_t)((1 << bits) - 1);
         u32 marker_len;
         int reserved_block_code = td->reserved_block_code;
 
         totlen = (num * bits) >> 3;
         marker_len = add_marker_len(td);
-        from = ((loff_t) page) << this->page_shift;
+        from = ((loff_t)page) << this->page_shift;
 
         while (totlen) {
-                len = min(totlen, (size_t) (1 << this->bbt_erase_shift));
+                len = min(totlen, (size_t)(1 << this->bbt_erase_shift));
                 if (marker_len) {
                         /*
                          * In case the BBT marker is not in the OOB area it
@@ -238,11 +203,18 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
                 }
                 res = mtd->read(mtd, from, len, &retlen, buf);
                 if (res < 0) {
-                        if (retlen != len) {
-                                printk(KERN_INFO "nand_bbt: Error reading bad block table\n");
+                        if (mtd_is_eccerr(res)) {
+                                pr_info("nand_bbt: ECC error in BBT at "
+                                        "0x%012llx\n", from & ~mtd->writesize);
+                                return res;
+                        } else if (mtd_is_bitflip(res)) {
+                                pr_info("nand_bbt: corrected error in BBT at "
+                                        "0x%012llx\n", from & ~mtd->writesize);
+                                ret = res;
+                        } else {
+                                pr_info("nand_bbt: error reading BBT\n");
                                 return res;
                         }
-                        printk(KERN_WARNING "nand_bbt: ECC error while reading bad block table\n");
                 }
 
                 /* Analyse data */
@@ -253,17 +225,19 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
                                 if (tmp == msk)
                                         continue;
                                 if (reserved_block_code && (tmp == reserved_block_code)) {
-                                        printk(KERN_DEBUG "nand_read_bbt: Reserved block at 0x%012llx\n",
-                                               (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+                                        pr_info("nand_read_bbt: reserved block at 0x%012llx\n",
+                                                 (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
                                         this->bbt[offs + (act >> 3)] |= 0x2 << (act & 0x06);
                                         mtd->ecc_stats.bbtblocks++;
                                         continue;
                                 }
-                                /* Leave it for now, if its matured we can move this
-                                 * message to MTD_DEBUG_LEVEL0 */
-                                printk(KERN_DEBUG "nand_read_bbt: Bad block at 0x%012llx\n",
-                                       (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
-                                /* Factory marked bad or worn out ? */
+                                /*
+                                 * Leave it for now, if it's matured we can
+                                 * move this message to pr_debug.
+                                 */
+                                pr_info("nand_read_bbt: bad block at 0x%012llx\n",
+                                         (loff_t)((offs << 2) + (act >> 1)) << this->bbt_erase_shift);
+                                /* Factory marked bad or worn out? */
                                 if (tmp == 0)
                                         this->bbt[offs + (act >> 3)] |= 0x3 << (act & 0x06);
                                 else
@@ -274,20 +248,20 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
                 totlen -= len;
                 from += len;
         }
-        return 0;
+        return ret;
 }
 
 /**
  * read_abs_bbt - [GENERIC] Read the bad block table starting at a given page
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @td:         descriptor for the bad block table
- * @chip:       read the table for a specific chip, -1 read all chips.
- *              Applies only if NAND_BBT_PERCHIP option is set
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @chip: read the table for a specific chip, -1 read all chips; applies only if
+ *        NAND_BBT_PERCHIP option is set
  *
- * Read the bad block table for all chips starting at a given page
- * We assume that the bbt bits are in consecutive order.
-*/
+ * Read the bad block table for all chips starting at a given page. We assume
+ * that the bbt bits are in consecutive order.
+ */
 static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td, int chip)
 {
         struct nand_chip *this = mtd->priv;
@@ -313,9 +287,7 @@ static int read_abs_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
         return 0;
 }
 
-/*
- * BBT marker is in the first page, no OOB.
- */
+/* BBT marker is in the first page, no OOB */
 static int scan_read_raw_data(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
                          struct nand_bbt_descr *td)
 {
@@ -329,35 +301,26 @@ static int scan_read_raw_data(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
         return mtd->read(mtd, offs, len, &retlen, buf);
 }
 
-/*
- * Scan read raw data from flash
- */
+/* Scan read raw data from flash */
 static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
                          size_t len)
 {
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_RAW;
+        ops.mode = MTD_OPS_RAW;
         ops.ooboffs = 0;
         ops.ooblen = mtd->oobsize;
 
-
         while (len > 0) {
-                if (len <= mtd->writesize) {
-                        ops.oobbuf = buf + len;
-                        ops.datbuf = buf;
-                        ops.len = len;
-                        return mtd->read_oob(mtd, offs, &ops);
-                } else {
-                        ops.oobbuf = buf + mtd->writesize;
-                        ops.datbuf = buf;
-                        ops.len = mtd->writesize;
-                        res = mtd->read_oob(mtd, offs, &ops);
+                ops.datbuf = buf;
+                ops.len = min(len, (size_t)mtd->writesize);
+                ops.oobbuf = buf + ops.len;
 
-                        if (res)
-                                return res;
-                }
+                res = mtd->read_oob(mtd, offs, &ops);
+
+                if (res)
+                        return res;
 
                 buf += mtd->oobsize + mtd->writesize;
                 len -= mtd->writesize;
@@ -374,15 +337,13 @@ static int scan_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
                 return scan_read_raw_oob(mtd, buf, offs, len);
 }
 
-/*
- * Scan write data with oob to flash
- */
+/* Scan write data with oob to flash */
 static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len,
                           uint8_t *buf, uint8_t *oob)
 {
         struct mtd_oob_ops ops;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = 0;
         ops.ooblen = mtd->oobsize;
         ops.datbuf = buf;
@@ -403,15 +364,14 @@ static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
 
 /**
  * read_abs_bbts - [GENERIC] Read the bad block table(s) for all chips starting at a given page
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @td:         descriptor for the bad block table
- * @md:         descriptor for the bad block table mirror
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @md: descriptor for the bad block table mirror
  *
- * Read the bad block table(s) for all chips starting at a given page
- * We assume that the bbt bits are in consecutive order.
- *
-*/
+ * Read the bad block table(s) for all chips starting at a given page. We
+ * assume that the bbt bits are in consecutive order.
+ */
 static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
                          struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
@@ -422,8 +382,8 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
                 scan_read_raw(mtd, buf, (loff_t)td->pages[0] << this->page_shift,
                               mtd->writesize, td);
                 td->version[0] = buf[bbt_get_ver_offs(mtd, td)];
-                printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
-                       td->pages[0], td->version[0]);
+                pr_info("Bad block table at page %d, version 0x%02X\n",
+                         td->pages[0], td->version[0]);
         }
 
         /* Read the mirror version, if available */
@@ -431,15 +391,13 @@ static int read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
                 scan_read_raw(mtd, buf, (loff_t)md->pages[0] << this->page_shift,
                               mtd->writesize, td);
                 md->version[0] = buf[bbt_get_ver_offs(mtd, md)];
-                printk(KERN_DEBUG "Bad block table at page %d, version 0x%02X\n",
-                       md->pages[0], md->version[0]);
+                pr_info("Bad block table at page %d, version 0x%02X\n",
+                         md->pages[0], md->version[0]);
         }
         return 1;
 }
 
-/*
- * Scan a given block full
- */
+/* Scan a given block full */
 static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
                            loff_t offs, uint8_t *buf, size_t readlen,
                            int scanlen, int len)
@@ -447,7 +405,8 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
         int ret, j;
 
         ret = scan_read_raw_oob(mtd, buf, offs, readlen);
-        if (ret)
+        /* Ignore ECC errors when checking for BBM */
+        if (ret && !mtd_is_bitflip_or_eccerr(ret))
                 return ret;
 
         for (j = 0; j < len; j++, buf += scanlen) {
@@ -457,9 +416,7 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
         return 0;
 }
 
-/*
- * Scan a given block partially
- */
+/* Scan a given block partially */
 static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
                            loff_t offs, uint8_t *buf, int len)
 {
@@ -470,16 +427,16 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
         ops.oobbuf = buf;
         ops.ooboffs = 0;
         ops.datbuf = NULL;
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
 
         for (j = 0; j < len; j++) {
                 /*
-                 * Read the full oob until read_oob is fixed to
-                 * handle single byte reads for 16 bit
-                 * buswidth
+                 * Read the full oob until read_oob is fixed to handle single
+                 * byte reads for 16 bit buswidth.
                  */
                 ret = mtd->read_oob(mtd, offs, &ops);
-                if (ret)
+                /* Ignore ECC errors when checking for BBM */
+                if (ret && !mtd_is_bitflip_or_eccerr(ret))
                         return ret;
 
                 if (check_short_pattern(buf, bd))
@@ -492,14 +449,14 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 
 /**
  * create_bbt - [GENERIC] Create a bad block table by scanning the device
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @bd:         descriptor for the good/bad block search pattern
- * @chip:       create the table for a specific chip, -1 read all chips.
- *              Applies only if NAND_BBT_PERCHIP option is set
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @bd: descriptor for the good/bad block search pattern
+ * @chip: create the table for a specific chip, -1 read all chips; applies only
+ *        if NAND_BBT_PERCHIP option is set
  *
- * Create a bad block table by scanning the device
- * for the given good/bad block identify pattern
+ * Create a bad block table by scanning the device for the given good/bad block
+ * identify pattern.
  */
 static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
         struct nand_bbt_descr *bd, int chip)
@@ -510,7 +467,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
         loff_t from;
         size_t readlen;
 
-        printk(KERN_INFO "Scanning device for bad blocks\n");
+        pr_info("Scanning device for bad blocks\n");
 
         if (bd->options & NAND_BBT_SCANALLPAGES)
                 len = 1 << (this->bbt_erase_shift - this->page_shift);
@@ -530,14 +487,16 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
         }
 
         if (chip == -1) {
-                /* Note that numblocks is 2 * (real numblocks) here, see i+=2
-                 * below as it makes shifting and masking less painful */
+                /*
+                 * Note that numblocks is 2 * (real numblocks) here, see i+=2
+                 * below as it makes shifting and masking less painful
+                 */
                 numblocks = mtd->size >> (this->bbt_erase_shift - 1);
                 startblock = 0;
                 from = 0;
         } else {
                 if (chip >= this->numchips) {
-                        printk(KERN_WARNING "create_bbt(): chipnr (%d) > available chips (%d)\n",
+                        pr_warn("create_bbt(): chipnr (%d) > available chips (%d)\n",
                                chip + 1, this->numchips);
                         return -EINVAL;
                 }
@@ -547,7 +506,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
                 from = (loff_t)startblock << (this->bbt_erase_shift - 1);
         }
 
-        if (this->options & NAND_BBT_SCANLASTPAGE)
+        if (this->bbt_options & NAND_BBT_SCANLASTPAGE)
                 from += mtd->erasesize - (mtd->writesize * len);
 
         for (i = startblock; i < numblocks;) {
@@ -566,8 +525,8 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 
                 if (ret) {
                         this->bbt[i >> 3] |= 0x03 << (i & 0x6);
-                        printk(KERN_WARNING "Bad eraseblock %d at 0x%012llx\n",
-                               i >> 1, (unsigned long long)from);
+                        pr_warn("Bad eraseblock %d at 0x%012llx\n",
+                                i >> 1, (unsigned long long)from);
                         mtd->ecc_stats.badblocks++;
                 }
 
@@ -579,20 +538,18 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 
 /**
  * search_bbt - [GENERIC] scan the device for a specific bad block table
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @td:         descriptor for the bad block table
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
  *
- * Read the bad block table by searching for a given ident pattern.
- * Search is preformed either from the beginning up or from the end of
- * the device downwards. The search starts always at the start of a
- * block.
- * If the option NAND_BBT_PERCHIP is given, each chip is searched
- * for a bbt, which contains the bad block information of this chip.
- * This is necessary to provide support for certain DOC devices.
+ * Read the bad block table by searching for a given ident pattern. Search is
+ * preformed either from the beginning up or from the end of the device
+ * downwards. The search starts always at the start of a block. If the option
+ * NAND_BBT_PERCHIP is given, each chip is searched for a bbt, which contains
+ * the bad block information of this chip. This is necessary to provide support
+ * for certain DOC devices.
  *
- * The bbt ident pattern resides in the oob area of the first page
- * in a block.
+ * The bbt ident pattern resides in the oob area of the first page in a block.
  */
 static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *td)
 {
@@ -603,7 +560,7 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
         int bbtblocks;
         int blocktopage = this->bbt_erase_shift - this->page_shift;
 
-        /* Search direction top -> down ? */
+        /* Search direction top -> down? */
         if (td->options & NAND_BBT_LASTBLOCK) {
                 startblock = (mtd->size >> this->bbt_erase_shift) - 1;
                 dir = -1;
@@ -612,7 +569,7 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
                 dir = 1;
         }
 
-        /* Do we have a bbt per chip ? */
+        /* Do we have a bbt per chip? */
         if (td->options & NAND_BBT_PERCHIP) {
                 chips = this->numchips;
                 bbtblocks = this->chipsize >> this->bbt_erase_shift;
@@ -651,23 +608,23 @@ static int search_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
         /* Check, if we found a bbt for each requested chip */
         for (i = 0; i < chips; i++) {
                 if (td->pages[i] == -1)
-                        printk(KERN_WARNING "Bad block table not found for chip %d\n", i);
+                        pr_warn("Bad block table not found for chip %d\n", i);
                 else
-                        printk(KERN_DEBUG "Bad block table found at page %d, version 0x%02X\n", td->pages[i],
-                               td->version[i]);
+                        pr_info("Bad block table found at page %d, version "
+                                 "0x%02X\n", td->pages[i], td->version[i]);
         }
         return 0;
 }
 
 /**
  * search_read_bbts - [GENERIC] scan the device for bad block table(s)
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @td:         descriptor for the bad block table
- * @md:         descriptor for the bad block table mirror
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @md: descriptor for the bad block table mirror
  *
- * Search and read the bad block table(s)
-*/
+ * Search and read the bad block table(s).
+ */
 static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt_descr *td, struct nand_bbt_descr *md)
 {
         /* Search the primary table */
@@ -683,16 +640,14 @@ static int search_read_bbts(struct mtd_info *mtd, uint8_t * buf, struct nand_bbt
 
 /**
  * write_bbt - [GENERIC] (Re)write the bad block table
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @td: descriptor for the bad block table
+ * @md: descriptor for the bad block table mirror
+ * @chipsel: selector for a specific chip, -1 for all
  *
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @td:         descriptor for the bad block table
- * @md:         descriptor for the bad block table mirror
- * @chipsel:    selector for a specific chip, -1 for all
- *
- * (Re)write the bad block table
- *
-*/
+ * (Re)write the bad block table.
+ */
 static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                      struct nand_bbt_descr *td, struct nand_bbt_descr *md,
                      int chipsel)
@@ -711,14 +666,14 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
         ops.ooblen = mtd->oobsize;
         ops.ooboffs = 0;
         ops.datbuf = NULL;
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
 
         if (!rcode)
                 rcode = 0xff;
-        /* Write bad block table per chip rather than per device ? */
+        /* Write bad block table per chip rather than per device? */
         if (td->options & NAND_BBT_PERCHIP) {
                 numblocks = (int)(this->chipsize >> this->bbt_erase_shift);
-                /* Full device write or specific chip ? */
+                /* Full device write or specific chip? */
                 if (chipsel == -1) {
                         nrchips = this->numchips;
                 } else {
@@ -732,8 +687,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 
         /* Loop through the chips */
         for (; chip < nrchips; chip++) {
-
-                /* There was already a version of the table, reuse the page
+                /*
+                 * There was already a version of the table, reuse the page
                  * This applies for absolute placement too, as we have the
                  * page nr. in td->pages.
                  */
@@ -742,8 +697,10 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                         goto write;
                 }
 
-                /* Automatic placement of the bad block table */
-                /* Search direction top -> down ? */
+                /*
+                 * Automatic placement of the bad block table. Search direction
+                 * top -> down?
+                 */
                 if (td->options & NAND_BBT_LASTBLOCK) {
                         startblock = numblocks * (chip + 1) - 1;
                         dir = -1;
@@ -767,7 +724,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                         if (!md || md->pages[chip] != page)
                                 goto write;
                 }
-                printk(KERN_ERR "No space left to write bad block table\n");
+                pr_err("No space left to write bad block table\n");
                 return -ENOSPC;
         write:
 
@@ -792,24 +749,22 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 
                 bbtoffs = chip * (numblocks >> 2);
 
-                to = ((loff_t) page) << this->page_shift;
+                to = ((loff_t)page) << this->page_shift;
 
-                /* Must we save the block contents ? */
+                /* Must we save the block contents? */
                 if (td->options & NAND_BBT_SAVECONTENT) {
                         /* Make it block aligned */
-                        to &= ~((loff_t) ((1 << this->bbt_erase_shift) - 1));
+                        to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1));
                         len = 1 << this->bbt_erase_shift;
                         res = mtd->read(mtd, to, len, &retlen, buf);
                         if (res < 0) {
                                 if (retlen != len) {
-                                        printk(KERN_INFO "nand_bbt: Error "
-                                               "reading block for writing "
-                                               "the bad block table\n");
+                                        pr_info("nand_bbt: error reading block "
+                                                "for writing the bad block table\n");
                                         return res;
                                 }
-                                printk(KERN_WARNING "nand_bbt: ECC error "
-                                       "while reading block for writing "
-                                       "bad block table\n");
+                                pr_warn("nand_bbt: ECC error while reading "
+                                        "block for writing bad block table\n");
                         }
                         /* Read oob data */
                         ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
@@ -822,19 +777,19 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                         pageoffs = page - (int)(to >> this->page_shift);
                         offs = pageoffs << this->page_shift;
                         /* Preset the bbt area with 0xff */
-                        memset(&buf[offs], 0xff, (size_t) (numblocks >> sft));
+                        memset(&buf[offs], 0xff, (size_t)(numblocks >> sft));
                         ooboffs = len + (pageoffs * mtd->oobsize);
 
                 } else if (td->options & NAND_BBT_NO_OOB) {
                         ooboffs = 0;
                         offs = td->len;
-                        /* the version byte */
+                        /* The version byte */
                         if (td->options & NAND_BBT_VERSION)
                                 offs++;
                         /* Calc length */
-                        len = (size_t) (numblocks >> sft);
+                        len = (size_t)(numblocks >> sft);
                         len += offs;
-                        /* Make it page aligned ! */
+                        /* Make it page aligned! */
                         len = ALIGN(len, mtd->writesize);
                         /* Preset the buffer with 0xff */
                         memset(buf, 0xff, len);
@@ -842,8 +797,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                         memcpy(buf, td->pattern, td->len);
                 } else {
                         /* Calc length */
-                        len = (size_t) (numblocks >> sft);
-                        /* Make it page aligned ! */
+                        len = (size_t)(numblocks >> sft);
+                        /* Make it page aligned! */
                         len = ALIGN(len, mtd->writesize);
                         /* Preset the buffer with 0xff */
                         memset(buf, 0xff, len +
@@ -857,13 +812,13 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                 if (td->options & NAND_BBT_VERSION)
                         buf[ooboffs + td->veroffs] = td->version[chip];
 
-                /* walk through the memory table */
+                /* Walk through the memory table */
                 for (i = 0; i < numblocks;) {
                         uint8_t dat;
                         dat = this->bbt[bbtoffs + (i >> 2)];
                         for (j = 0; j < 4; j++, i++) {
                                 int sftcnt = (i << (3 - sft)) & sftmsk;
-                                /* Do not store the reserved bbt blocks ! */
+                                /* Do not store the reserved bbt blocks! */
                                 buf[offs + (i >> sft)] &=
                                         ~(msk[dat & 0x03] << sftcnt);
                                 dat >>= 2;
@@ -884,8 +839,8 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
                 if (res < 0)
                         goto outerr;
 
-                printk(KERN_DEBUG "Bad block table written to 0x%012llx, version "
-                       "0x%02X\n", (unsigned long long)to, td->version[chip]);
+                pr_info("Bad block table written to 0x%012llx, version 0x%02X\n",
+                         (unsigned long long)to, td->version[chip]);
 
                 /* Mark it as used */
                 td->pages[chip] = page;
@@ -893,19 +848,18 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
         return 0;
 
  outerr:
-        printk(KERN_WARNING
-               "nand_bbt: Error while writing bad block table %d\n", res);
+        pr_warn("nand_bbt: error while writing bad block table %d\n", res);
         return res;
 }
 
 /**
  * nand_memory_bbt - [GENERIC] create a memory based bad block table
- * @mtd:        MTD device structure
- * @bd:         descriptor for the good/bad block search pattern
+ * @mtd: MTD device structure
+ * @bd: descriptor for the good/bad block search pattern
  *
- * The function creates a memory based bbt by scanning the device
- * for manufacturer / software marked good / bad blocks
-*/
+ * The function creates a memory based bbt by scanning the device for
+ * manufacturer / software marked good / bad blocks.
+ */
 static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
         struct nand_chip *this = mtd->priv;
@@ -916,25 +870,24 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
 
 /**
  * check_create - [GENERIC] create and write bbt(s) if necessary
- * @mtd:        MTD device structure
- * @buf:        temporary buffer
- * @bd:         descriptor for the good/bad block search pattern
+ * @mtd: MTD device structure
+ * @buf: temporary buffer
+ * @bd: descriptor for the good/bad block search pattern
  *
- * The function checks the results of the previous call to read_bbt
- * and creates / updates the bbt(s) if necessary
- * Creation is necessary if no bbt was found for the chip/device
- * Update is necessary if one of the tables is missing or the
- * version nr. of one table is less than the other
-*/
+ * The function checks the results of the previous call to read_bbt and creates
+ * / updates the bbt(s) if necessary. Creation is necessary if no bbt was found
+ * for the chip/device. Update is necessary if one of the tables is missing or
+ * the version nr. of one table is less than the other.
+ */
 static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr *bd)
 {
-        int i, chips, writeops, chipsel, res;
+        int i, chips, writeops, create, chipsel, res, res2;
         struct nand_chip *this = mtd->priv;
         struct nand_bbt_descr *td = this->bbt_td;
         struct nand_bbt_descr *md = this->bbt_md;
         struct nand_bbt_descr *rd, *rd2;
 
-        /* Do we have a bbt per chip ? */
+        /* Do we have a bbt per chip? */
         if (td->options & NAND_BBT_PERCHIP)
                 chips = this->numchips;
         else
@@ -942,86 +895,98 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
 
         for (i = 0; i < chips; i++) {
                 writeops = 0;
+                create = 0;
                 rd = NULL;
                 rd2 = NULL;
-                /* Per chip or per device ? */
+                res = res2 = 0;
+                /* Per chip or per device? */
                 chipsel = (td->options & NAND_BBT_PERCHIP) ? i : -1;
-                /* Mirrored table available ? */
+                /* Mirrored table available? */
                 if (md) {
                         if (td->pages[i] == -1 && md->pages[i] == -1) {
+                                create = 1;
                                 writeops = 0x03;
-                                goto create;
-                        }
-
-                        if (td->pages[i] == -1) {
+                        } else if (td->pages[i] == -1) {
                                 rd = md;
-                                td->version[i] = md->version[i];
-                                writeops = 1;
-                                goto writecheck;
-                        }
-
-                        if (md->pages[i] == -1) {
+                                writeops = 0x01;
+                        } else if (md->pages[i] == -1) {
                                 rd = td;
-                                md->version[i] = td->version[i];
-                                writeops = 2;
-                                goto writecheck;
-                        }
-
-                        if (td->version[i] == md->version[i]) {
+                                writeops = 0x02;
+                        } else if (td->version[i] == md->version[i]) {
                                 rd = td;
                                 if (!(td->options & NAND_BBT_VERSION))
                                         rd2 = md;
-                                goto writecheck;
-                        }
-
-                        if (((int8_t) (td->version[i] - md->version[i])) > 0) {
+                        } else if (((int8_t)(td->version[i] - md->version[i])) > 0) {
                                 rd = td;
-                                md->version[i] = td->version[i];
-                                writeops = 2;
+                                writeops = 0x02;
                         } else {
                                 rd = md;
-                                td->version[i] = md->version[i];
-                                writeops = 1;
+                                writeops = 0x01;
                         }
-
-                        goto writecheck;
-
                 } else {
                         if (td->pages[i] == -1) {
+                                create = 1;
                                 writeops = 0x01;
-                                goto create;
+                        } else {
+                                rd = td;
                         }
-                        rd = td;
-                        goto writecheck;
                 }
-        create:
-                /* Create the bad block table by scanning the device ? */
-                if (!(td->options & NAND_BBT_CREATE))
-                        continue;
 
-                /* Create the table in memory by scanning the chip(s) */
-                if (!(this->options & NAND_CREATE_EMPTY_BBT))
-                        create_bbt(mtd, buf, bd, chipsel);
-
-                td->version[i] = 1;
-                if (md)
-                        md->version[i] = 1;
-        writecheck:
-                /* read back first ? */
-                if (rd)
-                        read_abs_bbt(mtd, buf, rd, chipsel);
-                /* If they weren't versioned, read both. */
-                if (rd2)
-                        read_abs_bbt(mtd, buf, rd2, chipsel);
-
-                /* Write the bad block table to the device ? */
+                if (create) {
+                        /* Create the bad block table by scanning the device? */
+                        if (!(td->options & NAND_BBT_CREATE))
+                                continue;
+
+                        /* Create the table in memory by scanning the chip(s) */
+                        if (!(this->bbt_options & NAND_BBT_CREATE_EMPTY))
+                                create_bbt(mtd, buf, bd, chipsel);
+
+                        td->version[i] = 1;
+                        if (md)
+                                md->version[i] = 1;
+                }
+
+                /* Read back first? */
+                if (rd) {
+                        res = read_abs_bbt(mtd, buf, rd, chipsel);
+                        if (mtd_is_eccerr(res)) {
+                                /* Mark table as invalid */
+                                rd->pages[i] = -1;
+                                rd->version[i] = 0;
+                                i--;
+                                continue;
+                        }
+                }
+                /* If they weren't versioned, read both */
+                if (rd2) {
+                        res2 = read_abs_bbt(mtd, buf, rd2, chipsel);
+                        if (mtd_is_eccerr(res2)) {
+                                /* Mark table as invalid */
+                                rd2->pages[i] = -1;
+                                rd2->version[i] = 0;
+                                i--;
+                                continue;
+                        }
+                }
+
+                /* Scrub the flash table(s)? */
+                if (mtd_is_bitflip(res) || mtd_is_bitflip(res2))
+                        writeops = 0x03;
+
+                /* Update version numbers before writing */
+                if (md) {
+                        td->version[i] = max(td->version[i], md->version[i]);
+                        md->version[i] = td->version[i];
+                }
+
+                /* Write the bad block table to the device? */
                 if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
                         res = write_bbt(mtd, buf, td, md, chipsel);
                         if (res < 0)
                                 return res;
                 }
 
-                /* Write the mirror bad block table to the device ? */
+                /* Write the mirror bad block table to the device? */
                 if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
                         res = write_bbt(mtd, buf, md, td, chipsel);
                         if (res < 0)
@@ -1033,20 +998,19 @@ static int check_create(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_desc
 
 /**
  * mark_bbt_regions - [GENERIC] mark the bad block table regions
- * @mtd:        MTD device structure
- * @td:         bad block table descriptor
+ * @mtd: MTD device structure
+ * @td: bad block table descriptor
  *
- * The bad block table regions are marked as "bad" to prevent
- * accidental erasures / writes. The regions are identified by
- * the mark 0x02.
-*/
+ * The bad block table regions are marked as "bad" to prevent accidental
+ * erasures / writes. The regions are identified by the mark 0x02.
+ */
 static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 {
         struct nand_chip *this = mtd->priv;
         int i, j, chips, block, nrblocks, update;
         uint8_t oldval, newval;
 
-        /* Do we have a bbt per chip ? */
+        /* Do we have a bbt per chip? */
         if (td->options & NAND_BBT_PERCHIP) {
                 chips = this->numchips;
                 nrblocks = (int)(this->chipsize >> this->bbt_erase_shift);
@@ -1083,9 +1047,11 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
                                 update = 1;
                         block += 2;
                 }
-                /* If we want reserved blocks to be recorded to flash, and some
-                   new ones have been marked, then we need to update the stored
-                   bbts.  This should only happen once. */
+                /*
+                 * If we want reserved blocks to be recorded to flash, and some
+                 * new ones have been marked, then we need to update the stored
+                 * bbts.  This should only happen once.
+                 */
                 if (update && td->reserved_block_code)
                         nand_update_bbt(mtd, (loff_t)(block - 2) << (this->bbt_erase_shift - 1));
         }
@@ -1093,8 +1059,8 @@ static void mark_bbt_region(struct mtd_info *mtd, struct nand_bbt_descr *td)
 
 /**
  * verify_bbt_descr - verify the bad block description
- * @mtd:        MTD device structure
- * @bd:         the table to verify
+ * @mtd: MTD device structure
+ * @bd: the table to verify
  *
  * This functions performs a few sanity checks on the bad block description
  * table.
@@ -1112,16 +1078,16 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
         pattern_len = bd->len;
         bits = bd->options & NAND_BBT_NRBITS_MSK;
 
-        BUG_ON((this->options & NAND_USE_FLASH_BBT_NO_OOB) &&
-                        !(this->options & NAND_USE_FLASH_BBT));
+        BUG_ON((this->bbt_options & NAND_BBT_NO_OOB) &&
+                        !(this->bbt_options & NAND_BBT_USE_FLASH));
         BUG_ON(!bits);
 
         if (bd->options & NAND_BBT_VERSION)
                 pattern_len++;
 
         if (bd->options & NAND_BBT_NO_OOB) {
-                BUG_ON(!(this->options & NAND_USE_FLASH_BBT));
-                BUG_ON(!(this->options & NAND_USE_FLASH_BBT_NO_OOB));
+                BUG_ON(!(this->bbt_options & NAND_BBT_USE_FLASH));
+                BUG_ON(!(this->bbt_options & NAND_BBT_NO_OOB));
                 BUG_ON(bd->offs);
                 if (bd->options & NAND_BBT_VERSION)
                         BUG_ON(bd->veroffs != bd->len);
@@ -1141,18 +1107,16 @@ static void verify_bbt_descr(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 
 /**
  * nand_scan_bbt - [NAND Interface] scan, find, read and maybe create bad block table(s)
- * @mtd:        MTD device structure
- * @bd:         descriptor for the good/bad block search pattern
- *
- * The function checks, if a bad block table(s) is/are already
- * available. If not it scans the device for manufacturer
- * marked good / bad blocks and writes the bad block table(s) to
- * the selected place.
+ * @mtd: MTD device structure
+ * @bd: descriptor for the good/bad block search pattern
  *
- * The bad block table memory is allocated here. It must be freed
- * by calling the nand_free_bbt function.
+ * The function checks, if a bad block table(s) is/are already available. If
+ * not it scans the device for manufacturer marked good / bad blocks and writes
+ * the bad block table(s) to the selected place.
  *
-*/
+ * The bad block table memory is allocated here. It must be freed by calling
+ * the nand_free_bbt function.
+ */
 int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 {
         struct nand_chip *this = mtd->priv;
@@ -1162,19 +1126,21 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
         struct nand_bbt_descr *md = this->bbt_md;
 
         len = mtd->size >> (this->bbt_erase_shift + 2);
-        /* Allocate memory (2bit per block) and clear the memory bad block table */
+        /*
+         * Allocate memory (2bit per block) and clear the memory bad block
+         * table.
+         */
         this->bbt = kzalloc(len, GFP_KERNEL);
-        if (!this->bbt) {
-                printk(KERN_ERR "nand_scan_bbt: Out of memory\n");
+        if (!this->bbt)
                 return -ENOMEM;
-        }
 
-        /* If no primary table decriptor is given, scan the device
-         * to build a memory based bad block table
+        /*
+         * If no primary table decriptor is given, scan the device to build a
+         * memory based bad block table.
          */
         if (!td) {
                 if ((res = nand_memory_bbt(mtd, bd))) {
-                        printk(KERN_ERR "nand_bbt: Can't scan flash and build the RAM-based BBT\n");
+                        pr_err("nand_bbt: can't scan flash and build the RAM-based BBT\n");
                         kfree(this->bbt);
                         this->bbt = NULL;
                 }
@@ -1188,13 +1154,12 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
         len += (len >> this->page_shift) * mtd->oobsize;
         buf = vmalloc(len);
         if (!buf) {
-                printk(KERN_ERR "nand_bbt: Out of memory\n");
                 kfree(this->bbt);
                 this->bbt = NULL;
                 return -ENOMEM;
         }
 
-        /* Is the bbt at a given page ? */
+        /* Is the bbt at a given page? */
         if (td->options & NAND_BBT_ABSPAGE) {
                 res = read_abs_bbts(mtd, buf, td, md);
         } else {
@@ -1216,15 +1181,15 @@ int nand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
 
 /**
  * nand_update_bbt - [NAND Interface] update bad block table(s)
- * @mtd:        MTD device structure
- * @offs:       the offset of the newly marked block
+ * @mtd: MTD device structure
+ * @offs: the offset of the newly marked block
  *
- * The function updates the bad block table(s)
-*/
+ * The function updates the bad block table(s).
+ */
 int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
 {
         struct nand_chip *this = mtd->priv;
-        int len, res = 0, writeops = 0;
+        int len, res = 0;
         int chip, chipsel;
         uint8_t *buf;
         struct nand_bbt_descr *td = this->bbt_td;
@@ -1237,14 +1202,10 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
         len = (1 << this->bbt_erase_shift);
         len += (len >> this->page_shift) * mtd->oobsize;
         buf = kmalloc(len, GFP_KERNEL);
-        if (!buf) {
-                printk(KERN_ERR "nand_update_bbt: Out of memory\n");
+        if (!buf)
                 return -ENOMEM;
-        }
-
-        writeops = md != NULL ? 0x03 : 0x01;
 
-        /* Do we have a bbt per chip ? */
+        /* Do we have a bbt per chip? */
         if (td->options & NAND_BBT_PERCHIP) {
                 chip = (int)(offs >> this->chip_shift);
                 chipsel = chip;
@@ -1257,14 +1218,14 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
         if (md)
                 md->version[chip]++;
 
-        /* Write the bad block table to the device ? */
-        if ((writeops & 0x01) && (td->options & NAND_BBT_WRITE)) {
+        /* Write the bad block table to the device? */
+        if (td->options & NAND_BBT_WRITE) {
                 res = write_bbt(mtd, buf, td, md, chipsel);
                 if (res < 0)
                         goto out;
         }
-        /* Write the mirror bad block table to the device ? */
-        if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {
+        /* Write the mirror bad block table to the device? */
+        if (md && (md->options & NAND_BBT_WRITE)) {
                 res = write_bbt(mtd, buf, md, td, chipsel);
         }
 
@@ -1273,8 +1234,10 @@ int nand_update_bbt(struct mtd_info *mtd, loff_t offs)
         return res;
 }
 
-/* Define some generic bad / good block scan pattern which are used
- * while scanning a device for factory marked good / bad blocks. */
+/*
+ * Define some generic bad / good block scan pattern which are used
+ * while scanning a device for factory marked good / bad blocks.
+ */
 static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 
 static uint8_t scan_agand_pattern[] = { 0x1C, 0x71, 0xC7, 0x1C, 0x71, 0xC7 };
@@ -1286,8 +1249,7 @@ static struct nand_bbt_descr agand_flashbased = {
         .pattern = scan_agand_pattern
 };
 
-/* Generic flash bbt decriptors
-*/
+/* Generic flash bbt descriptors */
 static uint8_t bbt_pattern[] = {'B', 'b', 't', '0' };
 static uint8_t mirror_pattern[] = {'1', 't', 'b', 'B' };
 
@@ -1331,31 +1293,27 @@ static struct nand_bbt_descr bbt_mirror_no_bbt_descr = {
         .pattern = mirror_pattern
 };
 
-#define BBT_SCAN_OPTIONS (NAND_BBT_SCANLASTPAGE | NAND_BBT_SCAN2NDPAGE | \
-                NAND_BBT_SCANBYTE1AND6)
+#define BADBLOCK_SCAN_MASK (~NAND_BBT_NO_OOB)
 /**
- * nand_create_default_bbt_descr - [Internal] Creates a BBT descriptor structure
- * @this:       NAND chip to create descriptor for
+ * nand_create_badblock_pattern - [INTERN] Creates a BBT descriptor structure
+ * @this: NAND chip to create descriptor for
  *
  * This function allocates and initializes a nand_bbt_descr for BBM detection
- * based on the properties of "this". The new descriptor is stored in
+ * based on the properties of @this. The new descriptor is stored in
  * this->badblock_pattern. Thus, this->badblock_pattern should be NULL when
  * passed to this function.
- *
  */
-static int nand_create_default_bbt_descr(struct nand_chip *this)
+static int nand_create_badblock_pattern(struct nand_chip *this)
 {
         struct nand_bbt_descr *bd;
         if (this->badblock_pattern) {
-                printk(KERN_WARNING "BBT descr already allocated; not replacing.\n");
+                pr_warn("Bad block pattern already allocated; not replacing\n");
                 return -EINVAL;
         }
         bd = kzalloc(sizeof(*bd), GFP_KERNEL);
-        if (!bd) {
-                printk(KERN_ERR "nand_create_default_bbt_descr: Out of memory\n");
+        if (!bd)
                 return -ENOMEM;
-        }
-        bd->options = this->options & BBT_SCAN_OPTIONS;
+        bd->options = this->bbt_options & BADBLOCK_SCAN_MASK;
         bd->offs = this->badblockpos;
         bd->len = (this->options & NAND_BUSWIDTH_16) ? 2 : 1;
         bd->pattern = scan_ff_pattern;
@@ -1366,22 +1324,20 @@ static int nand_create_default_bbt_descr(struct nand_chip *this)
 
 /**
  * nand_default_bbt - [NAND Interface] Select a default bad block table for the device
- * @mtd:        MTD device structure
- *
- * This function selects the default bad block table
- * support for the device and calls the nand_scan_bbt function
+ * @mtd: MTD device structure
  *
-*/
+ * This function selects the default bad block table support for the device and
+ * calls the nand_scan_bbt function.
+ */
 int nand_default_bbt(struct mtd_info *mtd)
 {
         struct nand_chip *this = mtd->priv;
 
-        /* Default for AG-AND. We must use a flash based
-         * bad block table as the devices have factory marked
-         * _good_ blocks. Erasing those blocks leads to loss
-         * of the good / bad information, so we _must_ store
-         * this information in a good / bad table during
-         * startup
+        /*
+         * Default for AG-AND. We must use a flash based bad block table as the
+         * devices have factory marked _good_ blocks. Erasing those blocks
+         * leads to loss of the good / bad information, so we _must_ store this
+         * information in a good / bad table during startup.
          */
         if (this->options & NAND_IS_AND) {
                 /* Use the default pattern descriptors */
@@ -1389,15 +1345,15 @@ int nand_default_bbt(struct mtd_info *mtd)
                         this->bbt_td = &bbt_main_descr;
                         this->bbt_md = &bbt_mirror_descr;
                 }
-                this->options |= NAND_USE_FLASH_BBT;
+                this->bbt_options |= NAND_BBT_USE_FLASH;
                 return nand_scan_bbt(mtd, &agand_flashbased);
         }
 
-        /* Is a flash based bad block table requested ? */
-        if (this->options & NAND_USE_FLASH_BBT) {
+        /* Is a flash based bad block table requested? */
+        if (this->bbt_options & NAND_BBT_USE_FLASH) {
                 /* Use the default pattern descriptors */
                 if (!this->bbt_td) {
-                        if (this->options & NAND_USE_FLASH_BBT_NO_OOB) {
+                        if (this->bbt_options & NAND_BBT_NO_OOB) {
                                 this->bbt_td = &bbt_main_no_bbt_descr;
                                 this->bbt_md = &bbt_mirror_no_bbt_descr;
                         } else {
@@ -1411,18 +1367,17 @@ int nand_default_bbt(struct mtd_info *mtd)
         }
 
         if (!this->badblock_pattern)
-                nand_create_default_bbt_descr(this);
+                nand_create_badblock_pattern(this);
 
         return nand_scan_bbt(mtd, this->badblock_pattern);
 }
 
 /**
  * nand_isbad_bbt - [NAND Interface] Check if a block is bad
- * @mtd:        MTD device structure
- * @offs:       offset in the device
- * @allowbbt:   allow access to bad block table region
- *
-*/
+ * @mtd: MTD device structure
+ * @offs: offset in the device
+ * @allowbbt: allow access to bad block table region
+ */
 int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
 {
         struct nand_chip *this = mtd->priv;
@@ -1433,8 +1388,9 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
         block = (int)(offs >> (this->bbt_erase_shift - 1));
         res = (this->bbt[block >> 3] >> (block & 0x06)) & 0x03;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "nand_isbad_bbt(): bbt info for offs 0x%08x: (block %d) 0x%02x\n",
-              (unsigned int)offs, block >> 1, res);
+        pr_debug("nand_isbad_bbt(): bbt info for offs 0x%08x: "
+                        "(block %d) 0x%02x\n",
+                        (unsigned int)offs, block >> 1, res);
 
         switch ((int)res) {
         case 0x00:
diff --git a/drivers/mtd/nand/nand_bch.c b/drivers/mtd/nand/nand_bch.c
index 0f931e757116..3803e0bba23b 100644
--- a/drivers/mtd/nand/nand_bch.c
+++ b/drivers/mtd/nand/nand_bch.c
@@ -93,8 +93,8 @@ int nand_bch_correct_data(struct mtd_info *mtd, unsigned char *buf,
                                 buf[errloc[i] >> 3] ^= (1 << (errloc[i] & 7));
                         /* else error in ecc, no action needed */
 
-                        DEBUG(MTD_DEBUG_LEVEL0, "%s: corrected bitflip %u\n",
-                              __func__, errloc[i]);
+                        pr_debug("%s: corrected bitflip %u\n", __func__,
+                                        errloc[i]);
                 }
         } else if (count < 0) {
                 printk(KERN_ERR "ecc unrecoverable error\n");
diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c
index 271b8e735e8f..b7cfe0d37121 100644
--- a/drivers/mtd/nand/nand_ecc.c
+++ b/drivers/mtd/nand/nand_ecc.c
@@ -110,7 +110,7 @@ static const char bitsperbyte[256] = {
 
 /*
  * addressbits is a lookup table to filter out the bits from the xor-ed
- * ecc data that identify the faulty location.
+ * ECC data that identify the faulty location.
  * this is only used for repairing parity
  * see the comments in nand_correct_data for more details
  */
@@ -153,7 +153,7 @@ static const char addressbits[256] = {
  * __nand_calculate_ecc - [NAND Interface] Calculate 3-byte ECC for 256/512-byte
  *                       block
  * @buf:        input buffer with raw data
- * @eccsize:    data bytes per ecc step (256 or 512)
+ * @eccsize:    data bytes per ECC step (256 or 512)
  * @code:       output buffer with ECC
  */
 void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize,
@@ -348,7 +348,7 @@ void __nand_calculate_ecc(const unsigned char *buf, unsigned int eccsize,
                 rp17 = (par ^ rp16) & 0xff;
 
         /*
-         * Finally calculate the ecc bits.
+         * Finally calculate the ECC bits.
          * Again here it might seem that there are performance optimisations
          * possible, but benchmarks showed that on the system this is developed
          * the code below is the fastest
@@ -436,7 +436,7 @@ EXPORT_SYMBOL(nand_calculate_ecc);
  * @buf:        raw data read from the chip
  * @read_ecc:   ECC from the chip
  * @calc_ecc:   the ECC calculated from raw data
- * @eccsize:    data bytes per ecc step (256 or 512)
+ * @eccsize:    data bytes per ECC step (256 or 512)
  *
  * Detect and correct a 1 bit error for eccsize byte block
  */
@@ -505,7 +505,7 @@ int __nand_correct_data(unsigned char *buf,
         }
         /* count nr of bits; use table lookup, faster than calculating it */
         if ((bitsperbyte[b0] + bitsperbyte[b1] + bitsperbyte[b2]) == 1)
-                return 1;       /* error in ecc data; no action needed */
+                return 1;       /* error in ECC data; no action needed */
 
         printk(KERN_ERR "uncorrectable error : ");
         return -1;
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 357e8c5252a8..34c03be77301 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -2273,9 +2273,9 @@ static int __init ns_init_module(void)
 
         switch (bbt) {
         case 2:
-                 chip->options |= NAND_USE_FLASH_BBT_NO_OOB;
+                 chip->bbt_options |= NAND_BBT_NO_OOB;
         case 1:
-                 chip->options |= NAND_USE_FLASH_BBT;
+                 chip->bbt_options |= NAND_BBT_USE_FLASH;
         case 0:
                 break;
         default:
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index ea2dea8a9c88..ee1713907b92 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -42,7 +42,6 @@ struct ndfc_controller {
         struct nand_chip chip;
         int chip_select;
         struct nand_hw_control ndfc_control;
-        struct mtd_partition *parts;
 };
 
 static struct ndfc_controller ndfc_ctrl[NDFC_MAX_CS];
@@ -159,13 +158,9 @@ static int ndfc_verify_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
 static int ndfc_chip_init(struct ndfc_controller *ndfc,
                           struct device_node *node)
 {
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        static const char *part_types[] = { "cmdlinepart", NULL };
-#else
-        static const char *part_types[] = { NULL };
-#endif
         struct device_node *flash_np;
         struct nand_chip *chip = &ndfc->chip;
+        struct mtd_part_parser_data ppdata;
         int ret;
 
         chip->IO_ADDR_R = ndfc->ndfcbase + NDFC_DATA;
@@ -193,6 +188,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
         if (!flash_np)
                 return -ENODEV;
 
+        ppdata->of_node = flash_np;
         ndfc->mtd.name = kasprintf(GFP_KERNEL, "%s.%s",
                         dev_name(&ndfc->ofdev->dev), flash_np->name);
         if (!ndfc->mtd.name) {
@@ -204,18 +200,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
         if (ret)
                 goto err;
 
-        ret = parse_mtd_partitions(&ndfc->mtd, part_types, &ndfc->parts, 0);
-        if (ret < 0)
-                goto err;
-
-        if (ret == 0) {
-                ret = of_mtd_parse_partitions(&ndfc->ofdev->dev, flash_np,
-                                              &ndfc->parts);
-                if (ret < 0)
-                        goto err;
-        }
-
-        ret = mtd_device_register(&ndfc->mtd, ndfc->parts, ret);
+        ret = mtd_device_parse_register(&ndfc->mtd, NULL, &ppdata, NULL, 0);
 
 err:
         of_node_put(flash_np);
@@ -288,6 +273,7 @@ static int __devexit ndfc_remove(struct platform_device *ofdev)
         struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev);
 
         nand_release(&ndfc->mtd);
+        kfree(ndfc->mtd.name);
 
         return 0;
 }
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index b6a5c86ab31e..b463ecfb4c1a 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -187,6 +187,7 @@ static int nomadik_nand_remove(struct platform_device *pdev)
                 pdata->exit();
 
         if (host) {
+                nand_release(&host->mtd);
                 iounmap(host->cmd_va);
                 iounmap(host->data_va);
                 iounmap(host->addr_va);
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index 9c30a0b03171..fa8faedfad6e 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -339,6 +339,7 @@ static int __devexit nuc900_nand_remove(struct platform_device *pdev)
         struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev);
         struct resource *res;
 
+        nand_release(&nuc900_nand->mtd);
         iounmap(nuc900_nand->reg);
 
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index ec22a5aab038..f745f00f3167 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -95,8 +95,6 @@
 #define P4e_s(a)        (TF(a & NAND_Ecc_P4e)           << 0)
 #define P4o_s(a)        (TF(a & NAND_Ecc_P4o)           << 1)
 
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
 /* oob info generated runtime depending on ecc algorithm and layout selected */
 static struct nand_ecclayout omap_oobinfo;
 /* Define some generic bad / good block scan pattern which are used
@@ -115,7 +113,6 @@ struct omap_nand_info {
         struct nand_hw_control          controller;
         struct omap_nand_platform_data  *pdata;
         struct mtd_info                 mtd;
-        struct mtd_partition            *parts;
         struct nand_chip                nand;
         struct platform_device          *pdev;
 
@@ -745,12 +742,12 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 
         case 1:
                 /* Uncorrectable error */
-                DEBUG(MTD_DEBUG_LEVEL0, "ECC UNCORRECTED_ERROR 1\n");
+                pr_debug("ECC UNCORRECTED_ERROR 1\n");
                 return -1;
 
         case 11:
                 /* UN-Correctable error */
-                DEBUG(MTD_DEBUG_LEVEL0, "ECC UNCORRECTED_ERROR B\n");
+                pr_debug("ECC UNCORRECTED_ERROR B\n");
                 return -1;
 
         case 12:
@@ -767,8 +764,8 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
 
                 find_bit = (ecc_bit[5] << 2) + (ecc_bit[3] << 1) + ecc_bit[1];
 
-                DEBUG(MTD_DEBUG_LEVEL0, "Correcting single bit ECC error at "
-                                "offset: %d, bit: %d\n", find_byte, find_bit);
+                pr_debug("Correcting single bit ECC error at offset: "
+                                "%d, bit: %d\n", find_byte, find_bit);
 
                 page_data[find_byte] ^= (1 << find_bit);
 
@@ -780,7 +777,7 @@ static int omap_compare_ecc(u8 *ecc_data1,	/* read from NAND memory */
                             ecc_data2[2] == 0)
                                 return 0;
                 }
-                DEBUG(MTD_DEBUG_LEVEL0, "UNCORRECTED_ERROR default\n");
+                pr_debug("UNCORRECTED_ERROR default\n");
                 return -1;
         }
 }
@@ -1104,13 +1101,8 @@ static int __devinit omap_nand_probe(struct platform_device *pdev)
                 goto out_release_mem_region;
         }
 
-        err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0);
-        if (err > 0)
-                mtd_device_register(&info->mtd, info->parts, err);
-        else if (pdata->parts)
-                mtd_device_register(&info->mtd, pdata->parts, pdata->nr_parts);
-        else
-                mtd_device_register(&info->mtd, NULL, 0);
+        mtd_device_parse_register(&info->mtd, NULL, 0,
+                        pdata->parts, pdata->nr_parts);
 
         platform_set_drvdata(pdev, &info->mtd);
 
diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c
index 7794d0680f91..29f505adaf84 100644
--- a/drivers/mtd/nand/orion_nand.c
+++ b/drivers/mtd/nand/orion_nand.c
@@ -21,8 +21,6 @@
 #include <mach/hardware.h>
 #include <plat/orion_nand.h>
 
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
 static void orion_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 {
         struct nand_chip *nc = mtd->priv;
@@ -81,8 +79,6 @@ static int __init orion_nand_probe(struct platform_device *pdev)
         struct resource *res;
         void __iomem *io_base;
         int ret = 0;
-        struct mtd_partition *partitions = NULL;
-        int num_part = 0;
 
         nc = kzalloc(sizeof(struct nand_chip) + sizeof(struct mtd_info), GFP_KERNEL);
         if (!nc) {
@@ -132,17 +128,9 @@ static int __init orion_nand_probe(struct platform_device *pdev)
                 goto no_dev;
         }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
         mtd->name = "orion_nand";
-        num_part = parse_mtd_partitions(mtd, part_probes, &partitions, 0);
-#endif
-        /* If cmdline partitions have been passed, let them be used */
-        if (num_part <= 0) {
-                num_part = board->nr_parts;
-                partitions = board->parts;
-        }
-
-        ret = mtd_device_register(mtd, partitions, num_part);
+        ret = mtd_device_parse_register(mtd, NULL, 0,
+                        board->parts, board->nr_parts);
         if (ret) {
                 nand_release(mtd);
                 goto no_dev;
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index b1aa41b8a4eb..a97264ececdb 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -155,7 +155,8 @@ static int __devinit pasemi_nand_probe(struct platform_device *ofdev)
         chip->ecc.mode = NAND_ECC_SOFT;
 
         /* Enable the following for a flash based bad block table */
-        chip->options = NAND_USE_FLASH_BBT | NAND_NO_AUTOINCR;
+        chip->options = NAND_NO_AUTOINCR;
+        chip->bbt_options = NAND_BBT_USE_FLASH;
 
         /* Scan to find existence of the device */
         if (nand_scan(pasemi_nand_mtd, 1)) {
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index 633c04bf76f6..ea8e1234e0e2 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -21,8 +21,6 @@ struct plat_nand_data {
         struct nand_chip        chip;
         struct mtd_info         mtd;
         void __iomem            *io_base;
-        int                     nr_parts;
-        struct mtd_partition    *parts;
 };
 
 /*
@@ -79,6 +77,7 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
         data->chip.read_buf = pdata->ctrl.read_buf;
         data->chip.chip_delay = pdata->chip.chip_delay;
         data->chip.options |= pdata->chip.options;
+        data->chip.bbt_options |= pdata->chip.bbt_options;
 
         data->chip.ecc.hwctl = pdata->ctrl.hwcontrol;
         data->chip.ecc.layout = pdata->chip.ecclayout;
@@ -99,23 +98,9 @@ static int __devinit plat_nand_probe(struct platform_device *pdev)
                 goto out;
         }
 
-        if (pdata->chip.part_probe_types) {
-                err = parse_mtd_partitions(&data->mtd,
-                                        pdata->chip.part_probe_types,
-                                        &data->parts, 0);
-                if (err > 0) {
-                        mtd_device_register(&data->mtd, data->parts, err);
-                        return 0;
-                }
-        }
-        if (pdata->chip.set_parts)
-                pdata->chip.set_parts(data->mtd.size, &pdata->chip);
-        if (pdata->chip.partitions) {
-                data->parts = pdata->chip.partitions;
-                err = mtd_device_register(&data->mtd, data->parts,
-                        pdata->chip.nr_partitions);
-        } else
-                err = mtd_device_register(&data->mtd, NULL, 0);
+        err = mtd_device_parse_register(&data->mtd,
+                        pdata->chip.part_probe_types, 0,
+                        pdata->chip.partitions, pdata->chip.nr_partitions);
 
         if (!err)
                 return err;
@@ -145,8 +130,6 @@ static int __devexit plat_nand_remove(struct platform_device *pdev)
         res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
         nand_release(&data->mtd);
-        if (data->parts && data->parts != pdata->chip.partitions)
-                kfree(data->parts);
         if (pdata->ctrl.remove)
                 pdata->ctrl.remove(pdev);
         iounmap(data->io_base);
diff --git a/drivers/mtd/nand/ppchameleonevb.c b/drivers/mtd/nand/ppchameleonevb.c
index 3bbb796b451c..7e52af51a198 100644
--- a/drivers/mtd/nand/ppchameleonevb.c
+++ b/drivers/mtd/nand/ppchameleonevb.c
@@ -99,8 +99,6 @@ static struct mtd_partition partition_info_evb[] = {
 
 #define NUM_PARTITIONS 1
 
-extern int parse_cmdline_partitions(struct mtd_info *master, struct mtd_partition **pparts, const char *mtd_id);
-
 /*
  *      hardware specific access to control-lines
  */
@@ -187,18 +185,12 @@ static int ppchameleonevb_device_ready(struct mtd_info *minfo)
 }
 #endif
 
-const char *part_probes[] = { "cmdlinepart", NULL };
-const char *part_probes_evb[] = { "cmdlinepart", NULL };
-
 /*
  * Main initialization routine
  */
 static int __init ppchameleonevb_init(void)
 {
         struct nand_chip *this;
-        const char *part_type = 0;
-        int mtd_parts_nb = 0;
-        struct mtd_partition *mtd_parts = 0;
         void __iomem *ppchameleon_fio_base;
         void __iomem *ppchameleonevb_fio_base;
 
@@ -281,24 +273,13 @@ static int __init ppchameleonevb_init(void)
 #endif
 
         ppchameleon_mtd->name = "ppchameleon-nand";
-        mtd_parts_nb = parse_mtd_partitions(ppchameleon_mtd, part_probes, &mtd_parts, 0);
-        if (mtd_parts_nb > 0)
-                part_type = "command line";
-        else
-                mtd_parts_nb = 0;
-
-        if (mtd_parts_nb == 0) {
-                if (ppchameleon_mtd->size == NAND_SMALL_SIZE)
-                        mtd_parts = partition_info_me;
-                else
-                        mtd_parts = partition_info_hi;
-                mtd_parts_nb = NUM_PARTITIONS;
-                part_type = "static";
-        }
 
         /* Register the partitions */
-        printk(KERN_NOTICE "Using %s partition definition\n", part_type);
-        mtd_device_register(ppchameleon_mtd, mtd_parts, mtd_parts_nb);
+        mtd_device_parse_register(ppchameleon_mtd, NULL, 0,
+                        ppchameleon_mtd->size == NAND_SMALL_SIZE ?
+                                partition_info_me :
+                                partition_info_hi,
+                        NUM_PARTITIONS);
 
  nand_evb_init:
         /****************************
@@ -382,21 +363,13 @@ static int __init ppchameleonevb_init(void)
         }
 
         ppchameleonevb_mtd->name = NAND_EVB_MTD_NAME;
-        mtd_parts_nb = parse_mtd_partitions(ppchameleonevb_mtd, part_probes_evb, &mtd_parts, 0);
-        if (mtd_parts_nb > 0)
-                part_type = "command line";
-        else
-                mtd_parts_nb = 0;
-
-        if (mtd_parts_nb == 0) {
-                mtd_parts = partition_info_evb;
-                mtd_parts_nb = NUM_PARTITIONS;
-                part_type = "static";
-        }
 
         /* Register the partitions */
-        printk(KERN_NOTICE "Using %s partition definition\n", part_type);
-        mtd_device_register(ppchameleonevb_mtd, mtd_parts, mtd_parts_nb);
+        mtd_device_parse_register(ppchameleonevb_mtd, NULL, 0,
+                        ppchameleon_mtd->size == NAND_SMALL_SIZE ?
+                                partition_info_me :
+                                partition_info_hi,
+                        NUM_PARTITIONS);
 
         /* Return happy */
         return 0;
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 1fb3b3a80581..9eb7f879969e 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -110,6 +110,7 @@ enum {
 
 enum {
         STATE_IDLE = 0,
+        STATE_PREPARED,
         STATE_CMD_HANDLE,
         STATE_DMA_READING,
         STATE_DMA_WRITING,
@@ -120,21 +121,40 @@ enum {
         STATE_READY,
 };
 
-struct pxa3xx_nand_info {
-        struct nand_chip        nand_chip;
+struct pxa3xx_nand_host {
+        struct nand_chip        chip;
+        struct pxa3xx_nand_cmdset *cmdset;
+        struct mtd_info         *mtd;
+        void                    *info_data;
+
+        /* page size of attached chip */
+        unsigned int            page_size;
+        int                     use_ecc;
+        int                     cs;
 
+        /* calculated from pxa3xx_nand_flash data */
+        unsigned int            col_addr_cycles;
+        unsigned int            row_addr_cycles;
+        size_t                  read_id_bytes;
+
+        /* cached register value */
+        uint32_t                reg_ndcr;
+        uint32_t                ndtr0cs0;
+        uint32_t                ndtr1cs0;
+};
+
+struct pxa3xx_nand_info {
         struct nand_hw_control  controller;
         struct platform_device   *pdev;
-        struct pxa3xx_nand_cmdset *cmdset;
 
         struct clk              *clk;
         void __iomem            *mmio_base;
         unsigned long           mmio_phys;
+        struct completion       cmd_complete;
 
         unsigned int            buf_start;
         unsigned int            buf_count;
 
-        struct mtd_info         *mtd;
         /* DMA information */
         int                     drcmr_dat;
         int                     drcmr_cmd;
@@ -142,44 +162,27 @@ struct pxa3xx_nand_info {
         unsigned char           *data_buff;
         unsigned char           *oob_buff;
         dma_addr_t              data_buff_phys;
-        size_t                  data_buff_size;
         int                     data_dma_ch;
         struct pxa_dma_desc     *data_desc;
         dma_addr_t              data_desc_addr;
 
-        uint32_t                reg_ndcr;
-
-        /* saved column/page_addr during CMD_SEQIN */
-        int                     seqin_column;
-        int                     seqin_page_addr;
-
-        /* relate to the command */
+        struct pxa3xx_nand_host *host[NUM_CHIP_SELECT];
         unsigned int            state;
 
+        int                     cs;
         int                     use_ecc;        /* use HW ECC ? */
         int                     use_dma;        /* use DMA ? */
         int                     is_ready;
 
         unsigned int            page_size;      /* page size of attached chip */
         unsigned int            data_size;      /* data size in FIFO */
+        unsigned int            oob_size;
         int                     retcode;
-        struct completion       cmd_complete;
 
         /* generated NDCBx register values */
         uint32_t                ndcb0;
         uint32_t                ndcb1;
         uint32_t                ndcb2;
-
-        /* timing calcuted from setting */
-        uint32_t                ndtr0cs0;
-        uint32_t                ndtr1cs0;
-
-        /* calculated from pxa3xx_nand_flash data */
-        size_t          oob_size;
-        size_t          read_id_bytes;
-
-        unsigned int    col_addr_cycles;
-        unsigned int    row_addr_cycles;
 };
 
 static int use_dma = 1;
@@ -225,7 +228,7 @@ static struct pxa3xx_nand_flash builtin_flash_types[] = {
 /* Define a default flash type setting serve as flash detecting only */
 #define DEFAULT_FLASH_TYPE (&builtin_flash_types[0])
 
-const char *mtd_names[] = {"pxa3xx_nand-0", NULL};
+const char *mtd_names[] = {"pxa3xx_nand-0", "pxa3xx_nand-1", NULL};
 
 #define NDTR0_tCH(c)    (min((c), 7) << 19)
 #define NDTR0_tCS(c)    (min((c), 7) << 16)
@@ -241,9 +244,10 @@ const char *mtd_names[] = {"pxa3xx_nand-0", NULL};
 /* convert nano-seconds to nand flash controller clock cycles */
 #define ns2cycle(ns, clk)       (int)((ns) * (clk / 1000000) / 1000)
 
-static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info,
+static void pxa3xx_nand_set_timing(struct pxa3xx_nand_host *host,
                                    const struct pxa3xx_nand_timing *t)
 {
+        struct pxa3xx_nand_info *info = host->info_data;
         unsigned long nand_clk = clk_get_rate(info->clk);
         uint32_t ndtr0, ndtr1;
 
@@ -258,23 +262,24 @@ static void pxa3xx_nand_set_timing(struct pxa3xx_nand_info *info,
                 NDTR1_tWHR(ns2cycle(t->tWHR, nand_clk)) |
                 NDTR1_tAR(ns2cycle(t->tAR, nand_clk));
 
-        info->ndtr0cs0 = ndtr0;
-        info->ndtr1cs0 = ndtr1;
+        host->ndtr0cs0 = ndtr0;
+        host->ndtr1cs0 = ndtr1;
         nand_writel(info, NDTR0CS0, ndtr0);
         nand_writel(info, NDTR1CS0, ndtr1);
 }
 
 static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
 {
-        int oob_enable = info->reg_ndcr & NDCR_SPARE_EN;
+        struct pxa3xx_nand_host *host = info->host[info->cs];
+        int oob_enable = host->reg_ndcr & NDCR_SPARE_EN;
 
-        info->data_size = info->page_size;
+        info->data_size = host->page_size;
         if (!oob_enable) {
                 info->oob_size = 0;
                 return;
         }
 
-        switch (info->page_size) {
+        switch (host->page_size) {
         case 2048:
                 info->oob_size = (info->use_ecc) ? 40 : 64;
                 break;
@@ -292,9 +297,10 @@ static void pxa3xx_set_datasize(struct pxa3xx_nand_info *info)
  */
 static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
 {
+        struct pxa3xx_nand_host *host = info->host[info->cs];
         uint32_t ndcr;
 
-        ndcr = info->reg_ndcr;
+        ndcr = host->reg_ndcr;
         ndcr |= info->use_ecc ? NDCR_ECC_EN : 0;
         ndcr |= info->use_dma ? NDCR_DMA_EN : 0;
         ndcr |= NDCR_ND_RUN;
@@ -359,7 +365,7 @@ static void handle_data_pio(struct pxa3xx_nand_info *info)
                                         DIV_ROUND_UP(info->oob_size, 4));
                 break;
         default:
-                printk(KERN_ERR "%s: invalid state %d\n", __func__,
+                dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__,
                                 info->state);
                 BUG();
         }
@@ -385,7 +391,7 @@ static void start_data_dma(struct pxa3xx_nand_info *info)
                 desc->dcmd |= DCMD_INCTRGADDR | DCMD_FLOWSRC;
                 break;
         default:
-                printk(KERN_ERR "%s: invalid state %d\n", __func__,
+                dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__,
                                 info->state);
                 BUG();
         }
@@ -416,6 +422,15 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
 {
         struct pxa3xx_nand_info *info = devid;
         unsigned int status, is_completed = 0;
+        unsigned int ready, cmd_done;
+
+        if (info->cs == 0) {
+                ready           = NDSR_FLASH_RDY;
+                cmd_done        = NDSR_CS0_CMDD;
+        } else {
+                ready           = NDSR_RDY;
+                cmd_done        = NDSR_CS1_CMDD;
+        }
 
         status = nand_readl(info, NDSR);
 
@@ -437,11 +452,11 @@ static irqreturn_t pxa3xx_nand_irq(int irq, void *devid)
                         handle_data_pio(info);
                 }
         }
-        if (status & NDSR_CS0_CMDD) {
+        if (status & cmd_done) {
                 info->state = STATE_CMD_DONE;
                 is_completed = 1;
         }
-        if (status & NDSR_FLASH_RDY) {
+        if (status & ready) {
                 info->is_ready = 1;
                 info->state = STATE_READY;
         }
@@ -463,12 +478,6 @@ NORMAL_IRQ_EXIT:
         return IRQ_HANDLED;
 }
 
-static int pxa3xx_nand_dev_ready(struct mtd_info *mtd)
-{
-        struct pxa3xx_nand_info *info = mtd->priv;
-        return (nand_readl(info, NDSR) & NDSR_RDY) ? 1 : 0;
-}
-
 static inline int is_buf_blank(uint8_t *buf, size_t len)
 {
         for (; len > 0; len--)
@@ -481,10 +490,12 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                 uint16_t column, int page_addr)
 {
         uint16_t cmd;
-        int addr_cycle, exec_cmd, ndcb0;
-        struct mtd_info *mtd = info->mtd;
+        int addr_cycle, exec_cmd;
+        struct pxa3xx_nand_host *host;
+        struct mtd_info *mtd;
 
-        ndcb0 = 0;
+        host = info->host[info->cs];
+        mtd = host->mtd;
         addr_cycle = 0;
         exec_cmd = 1;
 
@@ -495,6 +506,10 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
         info->use_ecc           = 0;
         info->is_ready          = 0;
         info->retcode           = ERR_NONE;
+        if (info->cs != 0)
+                info->ndcb0 = NDCB0_CSEL;
+        else
+                info->ndcb0 = 0;
 
         switch (command) {
         case NAND_CMD_READ0:
@@ -512,20 +527,19 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                 break;
         }
 
-        info->ndcb0 = ndcb0;
-        addr_cycle = NDCB0_ADDR_CYC(info->row_addr_cycles
-                                    + info->col_addr_cycles);
+        addr_cycle = NDCB0_ADDR_CYC(host->row_addr_cycles
+                                    + host->col_addr_cycles);
 
         switch (command) {
         case NAND_CMD_READOOB:
         case NAND_CMD_READ0:
-                cmd = info->cmdset->read1;
+                cmd = host->cmdset->read1;
                 if (command == NAND_CMD_READOOB)
                         info->buf_start = mtd->writesize + column;
                 else
                         info->buf_start = column;
 
-                if (unlikely(info->page_size < PAGE_CHUNK_SIZE))
+                if (unlikely(host->page_size < PAGE_CHUNK_SIZE))
                         info->ndcb0 |= NDCB0_CMD_TYPE(0)
                                         | addr_cycle
                                         | (cmd & NDCB0_CMD1_MASK);
@@ -537,7 +551,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 
         case NAND_CMD_SEQIN:
                 /* small page addr setting */
-                if (unlikely(info->page_size < PAGE_CHUNK_SIZE)) {
+                if (unlikely(host->page_size < PAGE_CHUNK_SIZE)) {
                         info->ndcb1 = ((page_addr & 0xFFFFFF) << 8)
                                         | (column & 0xFF);
 
@@ -564,7 +578,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                         break;
                 }
 
-                cmd = info->cmdset->program;
+                cmd = host->cmdset->program;
                 info->ndcb0 |= NDCB0_CMD_TYPE(0x1)
                                 | NDCB0_AUTO_RS
                                 | NDCB0_ST_ROW_EN
@@ -574,8 +588,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                 break;
 
         case NAND_CMD_READID:
-                cmd = info->cmdset->read_id;
-                info->buf_count = info->read_id_bytes;
+                cmd = host->cmdset->read_id;
+                info->buf_count = host->read_id_bytes;
                 info->ndcb0 |= NDCB0_CMD_TYPE(3)
                                 | NDCB0_ADDR_CYC(1)
                                 | cmd;
@@ -583,7 +597,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                 info->data_size = 8;
                 break;
         case NAND_CMD_STATUS:
-                cmd = info->cmdset->read_status;
+                cmd = host->cmdset->read_status;
                 info->buf_count = 1;
                 info->ndcb0 |= NDCB0_CMD_TYPE(4)
                                 | NDCB0_ADDR_CYC(1)
@@ -593,7 +607,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
                 break;
 
         case NAND_CMD_ERASE1:
-                cmd = info->cmdset->erase;
+                cmd = host->cmdset->erase;
                 info->ndcb0 |= NDCB0_CMD_TYPE(2)
                                 | NDCB0_AUTO_RS
                                 | NDCB0_ADDR_CYC(3)
@@ -604,7 +618,7 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 
                 break;
         case NAND_CMD_RESET:
-                cmd = info->cmdset->reset;
+                cmd = host->cmdset->reset;
                 info->ndcb0 |= NDCB0_CMD_TYPE(5)
                                 | cmd;
 
@@ -616,8 +630,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 
         default:
                 exec_cmd = 0;
-                printk(KERN_ERR "pxa3xx-nand: non-supported"
-                        " command %x\n", command);
+                dev_err(&info->pdev->dev, "non-supported command %x\n",
+                                command);
                 break;
         }
 
@@ -627,7 +641,8 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
                                 int column, int page_addr)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         int ret, exec_cmd;
 
         /*
@@ -635,9 +650,21 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
          * "byte" address into a "word" address appropriate
          * for indexing a word-oriented device
          */
-        if (info->reg_ndcr & NDCR_DWIDTH_M)
+        if (host->reg_ndcr & NDCR_DWIDTH_M)
                 column /= 2;
 
+        /*
+         * There may be different NAND chip hooked to
+         * different chip select, so check whether
+         * chip select has been changed, if yes, reset the timing
+         */
+        if (info->cs != host->cs) {
+                info->cs = host->cs;
+                nand_writel(info, NDTR0CS0, host->ndtr0cs0);
+                nand_writel(info, NDTR1CS0, host->ndtr1cs0);
+        }
+
+        info->state = STATE_PREPARED;
         exec_cmd = prepare_command_pool(info, command, column, page_addr);
         if (exec_cmd) {
                 init_completion(&info->cmd_complete);
@@ -646,12 +673,12 @@ static void pxa3xx_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
                 ret = wait_for_completion_timeout(&info->cmd_complete,
                                 CHIP_DELAY_TIMEOUT);
                 if (!ret) {
-                        printk(KERN_ERR "Wait time out!!!\n");
+                        dev_err(&info->pdev->dev, "Wait time out!!!\n");
                         /* Stop State Machine for next command cycle */
                         pxa3xx_nand_stop(info);
                 }
-                info->state = STATE_IDLE;
         }
+        info->state = STATE_IDLE;
 }
 
 static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd,
@@ -664,7 +691,8 @@ static void pxa3xx_nand_write_page_hwecc(struct mtd_info *mtd,
 static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
                 struct nand_chip *chip, uint8_t *buf, int page)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
 
         chip->read_buf(mtd, buf, mtd->writesize);
         chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
@@ -685,6 +713,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
                  * OOB, ignore such double bit errors
                  */
                 if (is_buf_blank(buf, mtd->writesize))
+                        info->retcode = ERR_NONE;
+                else
                         mtd->ecc_stats.failed++;
         }
 
@@ -693,7 +723,8 @@ static int pxa3xx_nand_read_page_hwecc(struct mtd_info *mtd,
 
 static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         char retval = 0xFF;
 
         if (info->buf_start < info->buf_count)
@@ -705,7 +736,8 @@ static uint8_t pxa3xx_nand_read_byte(struct mtd_info *mtd)
 
 static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         u16 retval = 0xFFFF;
 
         if (!(info->buf_start & 0x01) && info->buf_start < info->buf_count) {
@@ -717,7 +749,8 @@ static u16 pxa3xx_nand_read_word(struct mtd_info *mtd)
 
 static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 
         memcpy(buf, info->data_buff + info->buf_start, real_len);
@@ -727,7 +760,8 @@ static void pxa3xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
 static void pxa3xx_nand_write_buf(struct mtd_info *mtd,
                 const uint8_t *buf, int len)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         int real_len = min_t(size_t, len, info->buf_count - info->buf_start);
 
         memcpy(info->data_buff + info->buf_start, buf, real_len);
@@ -747,7 +781,8 @@ static void pxa3xx_nand_select_chip(struct mtd_info *mtd, int chip)
 
 static int pxa3xx_nand_waitfunc(struct mtd_info *mtd, struct nand_chip *this)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
 
         /* pxa3xx_nand_send_command has waited for command complete */
         if (this->state == FL_WRITING || this->state == FL_ERASING) {
@@ -770,54 +805,70 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
 {
         struct platform_device *pdev = info->pdev;
         struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
+        struct pxa3xx_nand_host *host = info->host[info->cs];
         uint32_t ndcr = 0x0; /* enable all interrupts */
 
-        if (f->page_size != 2048 && f->page_size != 512)
+        if (f->page_size != 2048 && f->page_size != 512) {
+                dev_err(&pdev->dev, "Current only support 2048 and 512 size\n");
                 return -EINVAL;
+        }
 
-        if (f->flash_width != 16 && f->flash_width != 8)
+        if (f->flash_width != 16 && f->flash_width != 8) {
+                dev_err(&pdev->dev, "Only support 8bit and 16 bit!\n");
                 return -EINVAL;
+        }
 
         /* calculate flash information */
-        info->cmdset = &default_cmdset;
-        info->page_size = f->page_size;
-        info->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
+        host->cmdset = &default_cmdset;
+        host->page_size = f->page_size;
+        host->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
 
         /* calculate addressing information */
-        info->col_addr_cycles = (f->page_size == 2048) ? 2 : 1;
+        host->col_addr_cycles = (f->page_size == 2048) ? 2 : 1;
 
         if (f->num_blocks * f->page_per_block > 65536)
-                info->row_addr_cycles = 3;
+                host->row_addr_cycles = 3;
         else
-                info->row_addr_cycles = 2;
+                host->row_addr_cycles = 2;
 
         ndcr |= (pdata->enable_arbiter) ? NDCR_ND_ARB_EN : 0;
-        ndcr |= (info->col_addr_cycles == 2) ? NDCR_RA_START : 0;
+        ndcr |= (host->col_addr_cycles == 2) ? NDCR_RA_START : 0;
         ndcr |= (f->page_per_block == 64) ? NDCR_PG_PER_BLK : 0;
         ndcr |= (f->page_size == 2048) ? NDCR_PAGE_SZ : 0;
         ndcr |= (f->flash_width == 16) ? NDCR_DWIDTH_M : 0;
         ndcr |= (f->dfc_width == 16) ? NDCR_DWIDTH_C : 0;
 
-        ndcr |= NDCR_RD_ID_CNT(info->read_id_bytes);
+        ndcr |= NDCR_RD_ID_CNT(host->read_id_bytes);
         ndcr |= NDCR_SPARE_EN; /* enable spare by default */
 
-        info->reg_ndcr = ndcr;
+        host->reg_ndcr = ndcr;
 
-        pxa3xx_nand_set_timing(info, f->timing);
+        pxa3xx_nand_set_timing(host, f->timing);
         return 0;
 }
 
 static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
 {
+        /*
+         * We set 0 by hard coding here, for we don't support keep_config
+         * when there is more than one chip attached to the controller
+         */
+        struct pxa3xx_nand_host *host = info->host[0];
         uint32_t ndcr = nand_readl(info, NDCR);
-        info->page_size = ndcr & NDCR_PAGE_SZ ? 2048 : 512;
-        /* set info fields needed to read id */
-        info->read_id_bytes = (info->page_size == 2048) ? 4 : 2;
-        info->reg_ndcr = ndcr;
-        info->cmdset = &default_cmdset;
 
-        info->ndtr0cs0 = nand_readl(info, NDTR0CS0);
-        info->ndtr1cs0 = nand_readl(info, NDTR1CS0);
+        if (ndcr & NDCR_PAGE_SZ) {
+                host->page_size = 2048;
+                host->read_id_bytes = 4;
+        } else {
+                host->page_size = 512;
+                host->read_id_bytes = 2;
+        }
+
+        host->reg_ndcr = ndcr & ~NDCR_INT_MASK;
+        host->cmdset = &default_cmdset;
+
+        host->ndtr0cs0 = nand_readl(info, NDTR0CS0);
+        host->ndtr1cs0 = nand_readl(info, NDTR1CS0);
 
         return 0;
 }
@@ -847,7 +898,6 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
                 return -ENOMEM;
         }
 
-        info->data_buff_size = MAX_BUFF_SIZE;
         info->data_desc = (void *)info->data_buff + data_desc_offset;
         info->data_desc_addr = info->data_buff_phys + data_desc_offset;
 
@@ -855,7 +905,7 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
                                 pxa3xx_nand_data_dma_irq, info);
         if (info->data_dma_ch < 0) {
                 dev_err(&pdev->dev, "failed to request data dma\n");
-                dma_free_coherent(&pdev->dev, info->data_buff_size,
+                dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
                                 info->data_buff, info->data_buff_phys);
                 return info->data_dma_ch;
         }
@@ -865,24 +915,28 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 
 static int pxa3xx_nand_sensing(struct pxa3xx_nand_info *info)
 {
-        struct mtd_info *mtd = info->mtd;
-        struct nand_chip *chip = mtd->priv;
-
+        struct mtd_info *mtd;
+        int ret;
+        mtd = info->host[info->cs]->mtd;
         /* use the common timing to make a try */
-        pxa3xx_nand_config_flash(info, &builtin_flash_types[0]);
-        chip->cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
+        ret = pxa3xx_nand_config_flash(info, &builtin_flash_types[0]);
+        if (ret)
+                return ret;
+
+        pxa3xx_nand_cmdfunc(mtd, NAND_CMD_RESET, 0, 0);
         if (info->is_ready)
-                return 1;
-        else
                 return 0;
+
+        return -ENODEV;
 }
 
 static int pxa3xx_nand_scan(struct mtd_info *mtd)
 {
-        struct pxa3xx_nand_info *info = mtd->priv;
+        struct pxa3xx_nand_host *host = mtd->priv;
+        struct pxa3xx_nand_info *info = host->info_data;
         struct platform_device *pdev = info->pdev;
         struct pxa3xx_nand_platform_data *pdata = pdev->dev.platform_data;
-        struct nand_flash_dev pxa3xx_flash_ids[2] = { {NULL,}, {NULL,} };
+        struct nand_flash_dev pxa3xx_flash_ids[2], *def = NULL;
         const struct pxa3xx_nand_flash *f = NULL;
         struct nand_chip *chip = mtd->priv;
         uint32_t id = -1;
@@ -893,22 +947,20 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
                 goto KEEP_CONFIG;
 
         ret = pxa3xx_nand_sensing(info);
-        if (!ret) {
-                kfree(mtd);
-                info->mtd = NULL;
-                printk(KERN_INFO "There is no nand chip on cs 0!\n");
+        if (ret) {
+                dev_info(&info->pdev->dev, "There is no chip on cs %d!\n",
+                         info->cs);
 
-                return -EINVAL;
+                return ret;
         }
 
         chip->cmdfunc(mtd, NAND_CMD_READID, 0, 0);
         id = *((uint16_t *)(info->data_buff));
         if (id != 0)
-                printk(KERN_INFO "Detect a flash id %x\n", id);
+                dev_info(&info->pdev->dev, "Detect a flash id %x\n", id);
         else {
-                kfree(mtd);
-                info->mtd = NULL;
-                printk(KERN_WARNING "Read out ID 0, potential timing set wrong!!\n");
+                dev_warn(&info->pdev->dev,
+                         "Read out ID 0, potential timing set wrong!!\n");
 
                 return -EINVAL;
         }
@@ -926,14 +978,17 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
         }
 
         if (i >= (ARRAY_SIZE(builtin_flash_types) + pdata->num_flash - 1)) {
-                kfree(mtd);
-                info->mtd = NULL;
-                printk(KERN_ERR "ERROR!! flash not defined!!!\n");
+                dev_err(&info->pdev->dev, "ERROR!! flash not defined!!!\n");
 
                 return -EINVAL;
         }
 
-        pxa3xx_nand_config_flash(info, f);
+        ret = pxa3xx_nand_config_flash(info, f);
+        if (ret) {
+                dev_err(&info->pdev->dev, "ERROR! Configure failed\n");
+                return ret;
+        }
+
         pxa3xx_flash_ids[0].name = f->name;
         pxa3xx_flash_ids[0].id = (f->chip_id >> 8) & 0xffff;
         pxa3xx_flash_ids[0].pagesize = f->page_size;
@@ -942,62 +997,78 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
         pxa3xx_flash_ids[0].erasesize = f->page_size * f->page_per_block;
         if (f->flash_width == 16)
                 pxa3xx_flash_ids[0].options = NAND_BUSWIDTH_16;
+        pxa3xx_flash_ids[1].name = NULL;
+        def = pxa3xx_flash_ids;
 KEEP_CONFIG:
-        if (nand_scan_ident(mtd, 1, pxa3xx_flash_ids))
+        chip->ecc.mode = NAND_ECC_HW;
+        chip->ecc.size = host->page_size;
+
+        chip->options = NAND_NO_AUTOINCR;
+        chip->options |= NAND_NO_READRDY;
+        if (host->reg_ndcr & NDCR_DWIDTH_M)
+                chip->options |= NAND_BUSWIDTH_16;
+
+        if (nand_scan_ident(mtd, 1, def))
                 return -ENODEV;
         /* calculate addressing information */
-        info->col_addr_cycles = (mtd->writesize >= 2048) ? 2 : 1;
+        if (mtd->writesize >= 2048)
+                host->col_addr_cycles = 2;
+        else
+                host->col_addr_cycles = 1;
+
         info->oob_buff = info->data_buff + mtd->writesize;
         if ((mtd->size >> chip->page_shift) > 65536)
-                info->row_addr_cycles = 3;
+                host->row_addr_cycles = 3;
         else
-                info->row_addr_cycles = 2;
-        mtd->name = mtd_names[0];
-        chip->ecc.mode = NAND_ECC_HW;
-        chip->ecc.size = f->page_size;
-
-        chip->options = (f->flash_width == 16) ? NAND_BUSWIDTH_16 : 0;
-        chip->options |= NAND_NO_AUTOINCR;
-        chip->options |= NAND_NO_READRDY;
+                host->row_addr_cycles = 2;
 
+        mtd->name = mtd_names[0];
         return nand_scan_tail(mtd);
 }
 
-static
-struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev)
+static int alloc_nand_resource(struct platform_device *pdev)
 {
+        struct pxa3xx_nand_platform_data *pdata;
         struct pxa3xx_nand_info *info;
+        struct pxa3xx_nand_host *host;
         struct nand_chip *chip;
         struct mtd_info *mtd;
         struct resource *r;
-        int ret, irq;
+        int ret, irq, cs;
 
-        mtd = kzalloc(sizeof(struct mtd_info) + sizeof(struct pxa3xx_nand_info),
-                        GFP_KERNEL);
-        if (!mtd) {
+        pdata = pdev->dev.platform_data;
+        info = kzalloc(sizeof(*info) + (sizeof(*mtd) +
+                       sizeof(*host)) * pdata->num_cs, GFP_KERNEL);
+        if (!info) {
                 dev_err(&pdev->dev, "failed to allocate memory\n");
-                return NULL;
+                return -ENOMEM;
         }
 
-        info = (struct pxa3xx_nand_info *)(&mtd[1]);
-        chip = (struct nand_chip *)(&mtd[1]);
         info->pdev = pdev;
-        info->mtd = mtd;
-        mtd->priv = info;
-        mtd->owner = THIS_MODULE;
-
-        chip->ecc.read_page     = pxa3xx_nand_read_page_hwecc;
-        chip->ecc.write_page    = pxa3xx_nand_write_page_hwecc;
-        chip->controller        = &info->controller;
-        chip->waitfunc          = pxa3xx_nand_waitfunc;
-        chip->select_chip       = pxa3xx_nand_select_chip;
-        chip->dev_ready         = pxa3xx_nand_dev_ready;
-        chip->cmdfunc           = pxa3xx_nand_cmdfunc;
-        chip->read_word         = pxa3xx_nand_read_word;
-        chip->read_byte         = pxa3xx_nand_read_byte;
-        chip->read_buf          = pxa3xx_nand_read_buf;
-        chip->write_buf         = pxa3xx_nand_write_buf;
-        chip->verify_buf        = pxa3xx_nand_verify_buf;
+        for (cs = 0; cs < pdata->num_cs; cs++) {
+                mtd = (struct mtd_info *)((unsigned int)&info[1] +
+                      (sizeof(*mtd) + sizeof(*host)) * cs);
+                chip = (struct nand_chip *)(&mtd[1]);
+                host = (struct pxa3xx_nand_host *)chip;
+                info->host[cs] = host;
+                host->mtd = mtd;
+                host->cs = cs;
+                host->info_data = info;
+                mtd->priv = host;
+                mtd->owner = THIS_MODULE;
+
+                chip->ecc.read_page     = pxa3xx_nand_read_page_hwecc;
+                chip->ecc.write_page    = pxa3xx_nand_write_page_hwecc;
+                chip->controller        = &info->controller;
+                chip->waitfunc          = pxa3xx_nand_waitfunc;
+                chip->select_chip       = pxa3xx_nand_select_chip;
+                chip->cmdfunc           = pxa3xx_nand_cmdfunc;
+                chip->read_word         = pxa3xx_nand_read_word;
+                chip->read_byte         = pxa3xx_nand_read_byte;
+                chip->read_buf          = pxa3xx_nand_read_buf;
+                chip->write_buf         = pxa3xx_nand_write_buf;
+                chip->verify_buf        = pxa3xx_nand_verify_buf;
+        }
 
         spin_lock_init(&chip->controller->lock);
         init_waitqueue_head(&chip->controller->wq);
@@ -1070,13 +1141,13 @@ struct pxa3xx_nand_info *alloc_nand_resource(struct platform_device *pdev)
 
         platform_set_drvdata(pdev, info);
 
-        return info;
+        return 0;
 
 fail_free_buf:
         free_irq(irq, info);
         if (use_dma) {
                 pxa_free_dma(info->data_dma_ch);
-                dma_free_coherent(&pdev->dev, info->data_buff_size,
+                dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
                         info->data_buff, info->data_buff_phys);
         } else
                 kfree(info->data_buff);
@@ -1088,17 +1159,21 @@ fail_put_clk:
         clk_disable(info->clk);
         clk_put(info->clk);
 fail_free_mtd:
-        kfree(mtd);
-        return NULL;
+        kfree(info);
+        return ret;
 }
 
 static int pxa3xx_nand_remove(struct platform_device *pdev)
 {
         struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
-        struct mtd_info *mtd = info->mtd;
+        struct pxa3xx_nand_platform_data *pdata;
         struct resource *r;
-        int irq;
+        int irq, cs;
 
+        if (!info)
+                return 0;
+
+        pdata = pdev->dev.platform_data;
         platform_set_drvdata(pdev, NULL);
 
         irq = platform_get_irq(pdev, 0);
@@ -1106,7 +1181,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
                 free_irq(irq, info);
         if (use_dma) {
                 pxa_free_dma(info->data_dma_ch);
-                dma_free_writecombine(&pdev->dev, info->data_buff_size,
+                dma_free_writecombine(&pdev->dev, MAX_BUFF_SIZE,
                                 info->data_buff, info->data_buff_phys);
         } else
                 kfree(info->data_buff);
@@ -1118,10 +1193,9 @@ static int pxa3xx_nand_remove(struct platform_device *pdev)
         clk_disable(info->clk);
         clk_put(info->clk);
 
-        if (mtd) {
-                mtd_device_unregister(mtd);
-                kfree(mtd);
-        }
+        for (cs = 0; cs < pdata->num_cs; cs++)
+                nand_release(info->host[cs]->mtd);
+        kfree(info);
         return 0;
 }
 
@@ -1129,6 +1203,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
 {
         struct pxa3xx_nand_platform_data *pdata;
         struct pxa3xx_nand_info *info;
+        int ret, cs, probe_success;
 
         pdata = pdev->dev.platform_data;
         if (!pdata) {
@@ -1136,52 +1211,88 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
                 return -ENODEV;
         }
 
-        info = alloc_nand_resource(pdev);
-        if (info == NULL)
-                return -ENOMEM;
-
-        if (pxa3xx_nand_scan(info->mtd)) {
-                dev_err(&pdev->dev, "failed to scan nand\n");
-                pxa3xx_nand_remove(pdev);
-                return -ENODEV;
+        ret = alloc_nand_resource(pdev);
+        if (ret) {
+                dev_err(&pdev->dev, "alloc nand resource failed\n");
+                return ret;
         }
 
-        if (mtd_has_cmdlinepart()) {
-                const char *probes[] = { "cmdlinepart", NULL };
-                struct mtd_partition *parts;
-                int nr_parts;
+        info = platform_get_drvdata(pdev);
+        probe_success = 0;
+        for (cs = 0; cs < pdata->num_cs; cs++) {
+                info->cs = cs;
+                ret = pxa3xx_nand_scan(info->host[cs]->mtd);
+                if (ret) {
+                        dev_warn(&pdev->dev, "failed to scan nand at cs %d\n",
+                                cs);
+                        continue;
+                }
 
-                nr_parts = parse_mtd_partitions(info->mtd, probes, &parts, 0);
+                ret = mtd_device_parse_register(info->host[cs]->mtd, NULL, 0,
+                                pdata->parts[cs], pdata->nr_parts[cs]);
+                if (!ret)
+                        probe_success = 1;
+        }
 
-                if (nr_parts)
-                        return mtd_device_register(info->mtd, parts, nr_parts);
+        if (!probe_success) {
+                pxa3xx_nand_remove(pdev);
+                return -ENODEV;
         }
 
-        return mtd_device_register(info->mtd, pdata->parts, pdata->nr_parts);
+        return 0;
 }
 
 #ifdef CONFIG_PM
 static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state)
 {
         struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
-        struct mtd_info *mtd = info->mtd;
+        struct pxa3xx_nand_platform_data *pdata;
+        struct mtd_info *mtd;
+        int cs;
 
+        pdata = pdev->dev.platform_data;
         if (info->state) {
                 dev_err(&pdev->dev, "driver busy, state = %d\n", info->state);
                 return -EAGAIN;
         }
 
+        for (cs = 0; cs < pdata->num_cs; cs++) {
+                mtd = info->host[cs]->mtd;
+                mtd->suspend(mtd);
+        }
+
         return 0;
 }
 
 static int pxa3xx_nand_resume(struct platform_device *pdev)
 {
         struct pxa3xx_nand_info *info = platform_get_drvdata(pdev);
-        struct mtd_info *mtd = info->mtd;
+        struct pxa3xx_nand_platform_data *pdata;
+        struct mtd_info *mtd;
+        int cs;
 
-        nand_writel(info, NDTR0CS0, info->ndtr0cs0);
-        nand_writel(info, NDTR1CS0, info->ndtr1cs0);
-        clk_enable(info->clk);
+        pdata = pdev->dev.platform_data;
+        /* We don't want to handle interrupt without calling mtd routine */
+        disable_int(info, NDCR_INT_MASK);
+
+        /*
+         * Directly set the chip select to a invalid value,
+         * then the driver would reset the timing according
+         * to current chip select at the beginning of cmdfunc
+         */
+        info->cs = 0xff;
+
+        /*
+         * As the spec says, the NDSR would be updated to 0x1800 when
+         * doing the nand_clk disable/enable.
+         * To prevent it damaging state machine of the driver, clear
+         * all status before resume
+         */
+        nand_writel(info, NDSR, NDSR_MASK);
+        for (cs = 0; cs < pdata->num_cs; cs++) {
+                mtd = info->host[cs]->mtd;
+                mtd->resume(mtd);
+        }
 
         return 0;
 }
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index cae2e013c986..f20f393bfda6 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -1027,7 +1027,7 @@ void r852_shutdown(struct pci_dev *pci_dev)
 }
 
 #ifdef CONFIG_PM
-int r852_suspend(struct device *device)
+static int r852_suspend(struct device *device)
 {
         struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
 
@@ -1048,7 +1048,7 @@ int r852_suspend(struct device *device)
         return 0;
 }
 
-int r852_resume(struct device *device)
+static int r852_resume(struct device *device)
 {
         struct r852_device *dev = pci_get_drvdata(to_pci_dev(device));
 
@@ -1092,7 +1092,7 @@ static const struct pci_device_id r852_pci_id_tbl[] = {
 
 MODULE_DEVICE_TABLE(pci, r852_pci_id_tbl);
 
-SIMPLE_DEV_PM_OPS(r852_pm_ops, r852_suspend, r852_resume);
+static SIMPLE_DEV_PM_OPS(r852_pm_ops, r852_suspend, r852_resume);
 
 static struct pci_driver r852_pci_driver = {
         .name           = DRV_NAME,
diff --git a/drivers/mtd/nand/rtc_from4.c b/drivers/mtd/nand/rtc_from4.c
index c9f9127ff770..f309addc2fa0 100644
--- a/drivers/mtd/nand/rtc_from4.c
+++ b/drivers/mtd/nand/rtc_from4.c
@@ -351,7 +351,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
                 return 0;
         }
 
-        /* Read the syndrom pattern from the FPGA and correct the bitorder */
+        /* Read the syndrome pattern from the FPGA and correct the bitorder */
         rs_ecc = (volatile unsigned short *)(rtc_from4_fio_base + RTC_FROM4_RS_ECC);
         for (i = 0; i < 8; i++) {
                 ecc[i] = bitrev8(*rs_ecc);
@@ -380,7 +380,7 @@ static int rtc_from4_correct_data(struct mtd_info *mtd, const u_char *buf, u_cha
         /* Let the library code do its magic. */
         res = decode_rs8(rs_decoder, (uint8_t *) buf, par, 512, syn, 0, NULL, 0xff, NULL);
         if (res > 0) {
-                DEBUG(MTD_DEBUG_LEVEL0, "rtc_from4_correct_data: " "ECC corrected %d errors on read\n", res);
+                pr_debug("rtc_from4_correct_data: " "ECC corrected %d errors on read\n", res);
         }
         return res;
 }
@@ -444,7 +444,6 @@ static int rtc_from4_errstat(struct mtd_info *mtd, struct nand_chip *this,
                 len = mtd->writesize;
                 buf = kmalloc(len, GFP_KERNEL);
                 if (!buf) {
-                        printk(KERN_ERR "rtc_from4_errstat: Out of memory!\n");
                         er_stat = 1;
                         goto out;
                 }
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 4405468f196b..868685db6712 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -723,7 +723,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
 
         /* free the common resources */
 
-        if (info->clk != NULL && !IS_ERR(info->clk)) {
+        if (!IS_ERR(info->clk)) {
                 s3c2410_nand_clk_set_state(info, CLOCK_DISABLE);
                 clk_put(info->clk);
         }
@@ -744,26 +744,15 @@ static int s3c24xx_nand_remove(struct platform_device *pdev)
         return 0;
 }
 
-const char *part_probes[] = { "cmdlinepart", NULL };
 static int s3c2410_nand_add_partition(struct s3c2410_nand_info *info,
                                       struct s3c2410_nand_mtd *mtd,
                                       struct s3c2410_nand_set *set)
 {
-        struct mtd_partition *part_info;
-        int nr_part = 0;
+        if (set)
+                mtd->mtd.name = set->name;
 
-        if (set == NULL)
-                return mtd_device_register(&mtd->mtd, NULL, 0);
-
-        mtd->mtd.name = set->name;
-        nr_part = parse_mtd_partitions(&mtd->mtd, part_probes, &part_info, 0);
-
-        if (nr_part <= 0 && set->nr_partitions > 0) {
-                nr_part = set->nr_partitions;
-                part_info = set->partitions;
-        }
-
-        return mtd_device_register(&mtd->mtd, part_info, nr_part);
+        return mtd_device_parse_register(&mtd->mtd, NULL, 0,
+                        set->partitions, set->nr_partitions);
 }
 
 /**
@@ -880,8 +869,10 @@ static void s3c2410_nand_init_chip(struct s3c2410_nand_info *info,
         /* If you use u-boot BBT creation code, specifying this flag will
          * let the kernel fish out the BBT from the NAND, and also skip the
          * full NAND scan that can take 1/2s or so. Little things... */
-        if (set->flash_bbt)
-                chip->options |= NAND_USE_FLASH_BBT | NAND_SKIP_BBTSCAN;
+        if (set->flash_bbt) {
+                chip->bbt_options |= NAND_BBT_USE_FLASH;
+                chip->options |= NAND_SKIP_BBTSCAN;
+        }
 }
 
 /**
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 19e24ed089ea..619d2a504788 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -103,16 +103,12 @@ static int sharpsl_nand_calculate_ecc(struct mtd_info *mtd, const u_char * dat,
         return readb(sharpsl->io + ECCCNTR) != 0;
 }
 
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
 /*
  * Main initialization routine
  */
 static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
 {
         struct nand_chip *this;
-        struct mtd_partition *sharpsl_partition_info;
-        int nr_partitions;
         struct resource *r;
         int err = 0;
         struct sharpsl_nand *sharpsl;
@@ -184,14 +180,9 @@ static int __devinit sharpsl_nand_probe(struct platform_device *pdev)
 
         /* Register the partitions */
         sharpsl->mtd.name = "sharpsl-nand";
-        nr_partitions = parse_mtd_partitions(&sharpsl->mtd, part_probes, &sharpsl_partition_info, 0);
-        if (nr_partitions <= 0) {
-                nr_partitions = data->nr_partitions;
-                sharpsl_partition_info = data->partitions;
-        }
 
-        err = mtd_device_register(&sharpsl->mtd, sharpsl_partition_info,
-                                  nr_partitions);
+        err = mtd_device_parse_register(&sharpsl->mtd, NULL, 0,
+                        data->partitions, data->nr_partitions);
         if (err)
                 goto err_add;
 
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index 43469715b3fa..32ae5af7444f 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -48,7 +48,7 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
         /* As long as this function is called on erase block boundaries
                 it will work correctly for 256 byte nand */
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = 0;
         ops.ooblen = mtd->oobsize;
         ops.oobbuf = (void *)&oob;
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index ca2d0555729e..0fb24f9c2327 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -155,8 +155,6 @@ static int socrates_nand_device_ready(struct mtd_info *mtd)
         return 1;
 }
 
-static const char *part_probes[] = { "cmdlinepart", NULL };
-
 /*
  * Probe for the NAND device.
  */
@@ -166,8 +164,7 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev)
         struct mtd_info *mtd;
         struct nand_chip *nand_chip;
         int res;
-        struct mtd_partition *partitions = NULL;
-        int num_partitions = 0;
+        struct mtd_part_parser_data ppdata;
 
         /* Allocate memory for the device structure (and zero it) */
         host = kzalloc(sizeof(struct socrates_nand_host), GFP_KERNEL);
@@ -193,6 +190,7 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev)
         mtd->name = "socrates_nand";
         mtd->owner = THIS_MODULE;
         mtd->dev.parent = &ofdev->dev;
+        ppdata.of_node = ofdev->dev.of_node;
 
         /*should never be accessed directly */
         nand_chip->IO_ADDR_R = (void *)0xdeadbeef;
@@ -225,30 +223,10 @@ static int __devinit socrates_nand_probe(struct platform_device *ofdev)
                 goto out;
         }
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        num_partitions = parse_mtd_partitions(mtd, part_probes,
-                                              &partitions, 0);
-        if (num_partitions < 0) {
-                res = num_partitions;
-                goto release;
-        }
-#endif
-
-        if (num_partitions == 0) {
-                num_partitions = of_mtd_parse_partitions(&ofdev->dev,
-                                                         ofdev->dev.of_node,
-                                                         &partitions);
-                if (num_partitions < 0) {
-                        res = num_partitions;
-                        goto release;
-                }
-        }
-
-        res = mtd_device_register(mtd, partitions, num_partitions);
+        res = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
         if (!res)
                 return res;
 
-release:
         nand_release(mtd);
 
 out:
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 11e8371b5683..beebd95f7690 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -121,9 +121,6 @@ struct tmio_nand {
 
 #define mtd_to_tmio(m)                  container_of(m, struct tmio_nand, mtd)
 
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-static const char *part_probes[] = { "cmdlinepart", NULL };
-#endif
 
 /*--------------------------------------------------------------------------*/
 
@@ -381,8 +378,6 @@ static int tmio_probe(struct platform_device *dev)
         struct tmio_nand *tmio;
         struct mtd_info *mtd;
         struct nand_chip *nand_chip;
-        struct mtd_partition *parts;
-        int nbparts = 0;
         int retval;
 
         if (data == NULL)
@@ -461,15 +456,9 @@ static int tmio_probe(struct platform_device *dev)
                 goto err_scan;
         }
         /* Register the partitions */
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-        nbparts = parse_mtd_partitions(mtd, part_probes, &parts, 0);
-#endif
-        if (nbparts <= 0 && data) {
-                parts = data->partition;
-                nbparts = data->num_partitions;
-        }
-
-        retval = mtd_device_register(mtd, parts, nbparts);
+        retval = mtd_device_parse_register(mtd, NULL, 0,
+                        data ? data->partition : NULL,
+                        data ? data->num_partitions : 0);
         if (!retval)
                 return retval;
 
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index bfba4e39a6c5..ace46fdaef58 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -74,7 +74,6 @@ struct txx9ndfmc_drvdata {
         unsigned char hold;     /* in gbusclock */
         unsigned char spw;      /* in gbusclock */
         struct nand_hw_control hw_control;
-        struct mtd_partition *parts[MAX_TXX9NDFMC_DEV];
 };
 
 static struct platform_device *mtd_to_platdev(struct mtd_info *mtd)
@@ -287,7 +286,6 @@ static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
 static int __init txx9ndfmc_probe(struct platform_device *dev)
 {
         struct txx9ndfmc_platform_data *plat = dev->dev.platform_data;
-        static const char *probes[] = { "cmdlinepart", NULL };
         int hold, spw;
         int i;
         struct txx9ndfmc_drvdata *drvdata;
@@ -333,7 +331,6 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
                 struct txx9ndfmc_priv *txx9_priv;
                 struct nand_chip *chip;
                 struct mtd_info *mtd;
-                int nr_parts;
 
                 if (!(plat->ch_mask & (1 << i)))
                         continue;
@@ -393,9 +390,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
                 }
                 mtd->name = txx9_priv->mtdname;
 
-                nr_parts = parse_mtd_partitions(mtd, probes,
-                                                &drvdata->parts[i], 0);
-                mtd_device_register(mtd, drvdata->parts[i], nr_parts);
+                mtd_device_parse_register(mtd, NULL, 0, NULL, 0);
                 drvdata->mtds[i] = mtd;
         }
 
@@ -421,7 +416,6 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev)
                 txx9_priv = chip->priv;
 
                 nand_release(mtd);
-                kfree(drvdata->parts[i]);
                 kfree(txx9_priv->mtdname);
                 kfree(txx9_priv);
         }
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index b155666acfbe..cda77b562ad4 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -63,14 +63,12 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
                 return;
         }
 
-        DEBUG(MTD_DEBUG_LEVEL1, "NFTL: add_mtd for %s\n", mtd->name);
+        pr_debug("NFTL: add_mtd for %s\n", mtd->name);
 
         nftl = kzalloc(sizeof(struct NFTLrecord), GFP_KERNEL);
 
-        if (!nftl) {
-                printk(KERN_WARNING "NFTL: out of memory for data structures\n");
+        if (!nftl)
                 return;
-        }
 
         nftl->mbd.mtd = mtd;
         nftl->mbd.devnum = -1;
@@ -132,7 +130,7 @@ static void nftl_remove_dev(struct mtd_blktrans_dev *dev)
 {
         struct NFTLrecord *nftl = (void *)dev;
 
-        DEBUG(MTD_DEBUG_LEVEL1, "NFTL: remove_dev (i=%d)\n", dev->devnum);
+        pr_debug("NFTL: remove_dev (i=%d)\n", dev->devnum);
 
         del_mtd_blktrans_dev(dev);
         kfree(nftl->ReplUnitTable);
@@ -149,7 +147,7 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs & mask;
         ops.ooblen = len;
         ops.oobbuf = buf;
@@ -170,7 +168,7 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs & mask;
         ops.ooblen = len;
         ops.oobbuf = buf;
@@ -193,7 +191,7 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
         struct mtd_oob_ops ops;
         int res;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooboffs = offs & mask;
         ops.ooblen = mtd->oobsize;
         ops.oobbuf = oob;
@@ -220,7 +218,7 @@ static u16 NFTL_findfreeblock(struct NFTLrecord *nftl, int desperate )
 
         /* Normally, we force a fold to happen before we run out of free blocks completely */
         if (!desperate && nftl->numfreeEUNs < 2) {
-                DEBUG(MTD_DEBUG_LEVEL1, "NFTL_findfreeblock: there are too few free EUNs\n");
+                pr_debug("NFTL_findfreeblock: there are too few free EUNs\n");
                 return BLOCK_NIL;
         }
 
@@ -291,8 +289,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
                         if (block == 2) {
                                 foldmark = oob.u.c.FoldMark | oob.u.c.FoldMark1;
                                 if (foldmark == FOLD_MARK_IN_PROGRESS) {
-                                        DEBUG(MTD_DEBUG_LEVEL1,
-                                              "Write Inhibited on EUN %d\n", thisEUN);
+                                        pr_debug("Write Inhibited on EUN %d\n", thisEUN);
                                         inplace = 0;
                                 } else {
                                         /* There's no other reason not to do inplace,
@@ -357,7 +354,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
                         if (BlockLastState[block] != SECTOR_FREE &&
                             BlockMap[block] != BLOCK_NIL &&
                             BlockMap[block] != targetEUN) {
-                                DEBUG(MTD_DEBUG_LEVEL1, "Setting inplace to 0. VUC %d, "
+                                pr_debug("Setting inplace to 0. VUC %d, "
                                       "block %d was %x lastEUN, "
                                       "and is in EUN %d (%s) %d\n",
                                       thisVUC, block, BlockLastState[block],
@@ -373,14 +370,14 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
                     pendingblock < ((thisVUC + 1)* (nftl->EraseSize / 512)) &&
                     BlockLastState[pendingblock - (thisVUC * (nftl->EraseSize / 512))] !=
                     SECTOR_FREE) {
-                        DEBUG(MTD_DEBUG_LEVEL1, "Pending write not free in EUN %d. "
+                        pr_debug("Pending write not free in EUN %d. "
                               "Folding out of place.\n", targetEUN);
                         inplace = 0;
                 }
         }
 
         if (!inplace) {
-                DEBUG(MTD_DEBUG_LEVEL1, "Cannot fold Virtual Unit Chain %d in place. "
+                pr_debug("Cannot fold Virtual Unit Chain %d in place. "
                       "Trying out-of-place\n", thisVUC);
                 /* We need to find a targetEUN to fold into. */
                 targetEUN = NFTL_findfreeblock(nftl, 1);
@@ -410,7 +407,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
            and the Erase Unit into which we are supposed to be copying.
            Go for it.
         */
-        DEBUG(MTD_DEBUG_LEVEL1,"Folding chain %d into unit %d\n", thisVUC, targetEUN);
+        pr_debug("Folding chain %d into unit %d\n", thisVUC, targetEUN);
         for (block = 0; block < nftl->EraseSize / 512 ; block++) {
                 unsigned char movebuf[512];
                 int ret;
@@ -428,7 +425,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
 
                 ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512),
                                 512, &retlen, movebuf);
-                if (ret < 0 && ret != -EUCLEAN) {
+                if (ret < 0 && !mtd_is_bitflip(ret)) {
                         ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block])
                                         + (block * 512), 512, &retlen,
                                         movebuf);
@@ -457,7 +454,7 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
            has duplicate chains, we need to free one of the chains because it's not necessary any more.
         */
         thisEUN = nftl->EUNtable[thisVUC];
-        DEBUG(MTD_DEBUG_LEVEL1,"Want to erase\n");
+        pr_debug("Want to erase\n");
 
         /* For each block in the old chain (except the targetEUN of course),
            free it and make it available for future use */
@@ -570,7 +567,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block)
                                       (writeEUN * nftl->EraseSize) + blockofs,
                                       8, &retlen, (char *)&bci);
 
-                        DEBUG(MTD_DEBUG_LEVEL2, "Status of block %d in EUN %d is %x\n",
+                        pr_debug("Status of block %d in EUN %d is %x\n",
                               block , writeEUN, le16_to_cpu(bci.Status));
 
                         status = bci.Status | bci.Status1;
@@ -623,7 +620,7 @@ static inline u16 NFTL_findwriteunit(struct NFTLrecord *nftl, unsigned block)
                                    but they are reserved for when we're
                                    desperate. Well, now we're desperate.
                                 */
-                                DEBUG(MTD_DEBUG_LEVEL1, "Using desperate==1 to find free EUN to accommodate write to VUC %d\n", thisVUC);
+                                pr_debug("Using desperate==1 to find free EUN to accommodate write to VUC %d\n", thisVUC);
                                 writeEUN = NFTL_findfreeblock(nftl, 1);
                         }
                         if (writeEUN == BLOCK_NIL) {
@@ -776,7 +773,7 @@ static int nftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
                 size_t retlen;
                 int res = mtd->read(mtd, ptr, 512, &retlen, buffer);
 
-                if (res < 0 && res != -EUCLEAN)
+                if (res < 0 && !mtd_is_bitflip(res))
                         return -EIO;
         }
         return 0;
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index e3cd1ffad2f6..ac4092591aea 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -32,7 +32,7 @@
 
 /* find_boot_record: Find the NFTL Media Header and its Spare copy which contains the
  *      various device information of the NFTL partition and Bad Unit Table. Update
- *      the ReplUnitTable[] table accroding to the Bad Unit Table. ReplUnitTable[]
+ *      the ReplUnitTable[] table according to the Bad Unit Table. ReplUnitTable[]
  *      is used for management of Erase Unit in other routines in nftl.c and nftlmount.c
  */
 static int find_boot_record(struct NFTLrecord *nftl)
@@ -297,7 +297,7 @@ static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int
  *
  * Return: 0 when succeed, -1 on error.
  *
- *  ToDo: 1. Is it neceressary to check_free_sector after erasing ??
+ *  ToDo: 1. Is it necessary to check_free_sector after erasing ??
  */
 int NFTL_formatblock(struct NFTLrecord *nftl, int block)
 {
@@ -337,7 +337,7 @@ int NFTL_formatblock(struct NFTLrecord *nftl, int block)
                 nb_erases = le32_to_cpu(uci.WearInfo);
                 nb_erases++;
 
-                /* wrap (almost impossible with current flashs) or free block */
+                /* wrap (almost impossible with current flash) or free block */
                 if (nb_erases == 0)
                         nb_erases = 1;
 
@@ -363,10 +363,10 @@ fail:
  *      Mark as 'IGNORE' each incorrect sector. This check is only done if the chain
  *      was being folded when NFTL was interrupted.
  *
- *      The check_free_sectors in this function is neceressary. There is a possible
+ *      The check_free_sectors in this function is necessary. There is a possible
  *      situation that after writing the Data area, the Block Control Information is
  *      not updated according (due to power failure or something) which leaves the block
- *      in an umconsistent state. So we have to check if a block is really FREE in this
+ *      in an inconsistent state. So we have to check if a block is really FREE in this
  *      case. */
 static void check_sectors_in_chain(struct NFTLrecord *nftl, unsigned int first_block)
 {
@@ -428,7 +428,7 @@ static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block)
 
         for (;;) {
                 length++;
-                /* avoid infinite loops, although this is guaranted not to
+                /* avoid infinite loops, although this is guaranteed not to
                    happen because of the previous checks */
                 if (length >= nftl->nb_blocks) {
                         printk("nftl: length too long %d !\n", length);
@@ -447,11 +447,11 @@ static int calc_chain_length(struct NFTLrecord *nftl, unsigned int first_block)
 /* format_chain: Format an invalid Virtual Unit chain. It frees all the Erase Units in a
  *      Virtual Unit Chain, i.e. all the units are disconnected.
  *
- *      It is not stricly correct to begin from the first block of the chain because
+ *      It is not strictly correct to begin from the first block of the chain because
  *      if we stop the code, we may see again a valid chain if there was a first_block
  *      flag in a block inside it. But is it really a problem ?
  *
- * FixMe: Figure out what the last statesment means. What if power failure when we are
+ * FixMe: Figure out what the last statement means. What if power failure when we are
  *      in the for (;;) loop formatting blocks ??
  */
 static void format_chain(struct NFTLrecord *nftl, unsigned int first_block)
@@ -485,7 +485,7 @@ static void format_chain(struct NFTLrecord *nftl, unsigned int first_block)
  *      totally free (only 0xff).
  *
  * Definition: Free Erase Unit -- A properly erased/formatted Free Erase Unit should have meet the
- *      following critia:
+ *      following criteria:
  *      1. */
 static int check_and_mark_free_block(struct NFTLrecord *nftl, int block)
 {
@@ -502,7 +502,7 @@ static int check_and_mark_free_block(struct NFTLrecord *nftl, int block)
         erase_mark = le16_to_cpu ((h1.EraseMark | h1.EraseMark1));
         if (erase_mark != ERASE_MARK) {
                 /* if no erase mark, the block must be totally free. This is
-                   possible in two cases : empty filsystem or interrupted erase (very unlikely) */
+                   possible in two cases : empty filesystem or interrupted erase (very unlikely) */
                 if (check_free_sectors (nftl, block * nftl->EraseSize, nftl->EraseSize, 1) != 0)
                         return -1;
 
@@ -544,7 +544,7 @@ static int check_and_mark_free_block(struct NFTLrecord *nftl, int block)
 /* get_fold_mark: Read fold mark from Unit Control Information #2, we use FOLD_MARK_IN_PROGRESS
  *      to indicate that we are in the progression of a Virtual Unit Chain folding. If the UCI #2
  *      is FOLD_MARK_IN_PROGRESS when mounting the NFTL, the (previous) folding process is interrupted
- *      for some reason. A clean up/check of the VUC is neceressary in this case.
+ *      for some reason. A clean up/check of the VUC is necessary in this case.
  *
  * WARNING: return 0 if read error
  */
@@ -657,7 +657,7 @@ int NFTL_mount(struct NFTLrecord *s)
                                                 printk("Block %d: incorrect logical block: %d expected: %d\n",
                                                        block, logical_block, first_logical_block);
                                                 /* the chain is incorrect : we must format it,
-                                                   but we need to read it completly */
+                                                   but we need to read it completely */
                                                 do_format_chain = 1;
                                         }
                                         if (is_first_block) {
@@ -669,7 +669,7 @@ int NFTL_mount(struct NFTLrecord *s)
                                                         printk("Block %d: incorrectly marked as first block in chain\n",
                                                                block);
                                                         /* the chain is incorrect : we must format it,
-                                                           but we need to read it completly */
+                                                           but we need to read it completely */
                                                         do_format_chain = 1;
                                                 } else {
                                                         printk("Block %d: folding in progress - ignoring first block flag\n",
diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c
index a996718fa6b0..64be8f0848b0 100644
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -20,14 +20,23 @@
 #include <linux/slab.h>
 #include <linux/mtd/partitions.h>
 
-int __devinit of_mtd_parse_partitions(struct device *dev,
-                                      struct device_node *node,
-                                      struct mtd_partition **pparts)
+static int parse_ofpart_partitions(struct mtd_info *master,
+                                   struct mtd_partition **pparts,
+                                   struct mtd_part_parser_data *data)
 {
+        struct device_node *node;
         const char *partname;
         struct device_node *pp;
         int nr_parts, i;
 
+
+        if (!data)
+                return 0;
+
+        node = data->of_node;
+        if (!node)
+                return 0;
+
         /* First count the subnodes */
         pp = NULL;
         nr_parts = 0;
@@ -69,7 +78,7 @@ int __devinit of_mtd_parse_partitions(struct device *dev,
 
         if (!i) {
                 of_node_put(pp);
-                dev_err(dev, "No valid partition found on %s\n", node->full_name);
+                pr_err("No valid partition found on %s\n", node->full_name);
                 kfree(*pparts);
                 *pparts = NULL;
                 return -EINVAL;
@@ -77,6 +86,99 @@ int __devinit of_mtd_parse_partitions(struct device *dev,
 
         return nr_parts;
 }
-EXPORT_SYMBOL(of_mtd_parse_partitions);
+
+static struct mtd_part_parser ofpart_parser = {
+        .owner = THIS_MODULE,
+        .parse_fn = parse_ofpart_partitions,
+        .name = "ofpart",
+};
+
+static int parse_ofoldpart_partitions(struct mtd_info *master,
+                                      struct mtd_partition **pparts,
+                                      struct mtd_part_parser_data *data)
+{
+        struct device_node *dp;
+        int i, plen, nr_parts;
+        const struct {
+                __be32 offset, len;
+        } *part;
+        const char *names;
+
+        if (!data)
+                return 0;
+
+        dp = data->of_node;
+        if (!dp)
+                return 0;
+
+        part = of_get_property(dp, "partitions", &plen);
+        if (!part)
+                return 0; /* No partitions found */
+
+        pr_warning("Device tree uses obsolete partition map binding: %s\n",
+                        dp->full_name);
+
+        nr_parts = plen / sizeof(part[0]);
+
+        *pparts = kzalloc(nr_parts * sizeof(*(*pparts)), GFP_KERNEL);
+        if (!pparts)
+                return -ENOMEM;
+
+        names = of_get_property(dp, "partition-names", &plen);
+
+        for (i = 0; i < nr_parts; i++) {
+                (*pparts)[i].offset = be32_to_cpu(part->offset);
+                (*pparts)[i].size   = be32_to_cpu(part->len) & ~1;
+                /* bit 0 set signifies read only partition */
+                if (be32_to_cpu(part->len) & 1)
+                        (*pparts)[i].mask_flags = MTD_WRITEABLE;
+
+                if (names && (plen > 0)) {
+                        int len = strlen(names) + 1;
+
+                        (*pparts)[i].name = (char *)names;
+                        plen -= len;
+                        names += len;
+                } else {
+                        (*pparts)[i].name = "unnamed";
+                }
+
+                part++;
+        }
+
+        return nr_parts;
+}
+
+static struct mtd_part_parser ofoldpart_parser = {
+        .owner = THIS_MODULE,
+        .parse_fn = parse_ofoldpart_partitions,
+        .name = "ofoldpart",
+};
+
+static int __init ofpart_parser_init(void)
+{
+        int rc;
+        rc = register_mtd_parser(&ofpart_parser);
+        if (rc)
+                goto out;
+
+        rc = register_mtd_parser(&ofoldpart_parser);
+        if (!rc)
+                return 0;
+
+        deregister_mtd_parser(&ofoldpart_parser);
+out:
+        return rc;
+}
+
+module_init(ofpart_parser_init);
 
 MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Parser for MTD partitioning information in device tree");
+MODULE_AUTHOR("Vitaly Wool, David Gibson");
+/*
+ * When MTD core cannot find the requested parser, it tries to load the module
+ * with the same name. Since we provide the ofoldpart parser, we should have
+ * the corresponding alias.
+ */
+MODULE_ALIAS("ofoldpart");
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 2d70d354d846..7813095264a5 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -30,11 +30,8 @@
  */
 #define DRIVER_NAME     "onenand-flash"
 
-static const char *part_probes[] = { "cmdlinepart", NULL,  };
-
 struct onenand_info {
         struct mtd_info         mtd;
-        struct mtd_partition    *parts;
         struct onenand_chip     onenand;
 };
 
@@ -73,13 +70,9 @@ static int __devinit generic_onenand_probe(struct platform_device *pdev)
                 goto out_iounmap;
         }
 
-        err = parse_mtd_partitions(&info->mtd, part_probes, &info->parts, 0);
-        if (err > 0)
-                mtd_device_register(&info->mtd, info->parts, err);
-        else if (err <= 0 && pdata && pdata->parts)
-                mtd_device_register(&info->mtd, pdata->parts, pdata->nr_parts);
-        else
-                err = mtd_device_register(&info->mtd, NULL, 0);
+        err = mtd_device_parse_register(&info->mtd, NULL, 0,
+                        pdata ? pdata->parts : NULL,
+                        pdata ? pdata->nr_parts : 0);
 
         platform_set_drvdata(pdev, info);
 
@@ -104,7 +97,6 @@ static int __devexit generic_onenand_remove(struct platform_device *pdev)
         platform_set_drvdata(pdev, NULL);
 
         if (info) {
-                mtd_device_unregister(&info->mtd);
                 onenand_release(&info->mtd);
                 release_mem_region(res->start, size);
                 iounmap(info->onenand.base);
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 6a1d6d9a2df9..7e9ea6852b67 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -57,7 +57,6 @@ struct omap2_onenand {
         unsigned long phys_base;
         int gpio_irq;
         struct mtd_info mtd;
-        struct mtd_partition *parts;
         struct onenand_chip onenand;
         struct completion irq_done;
         struct completion dma_done;
@@ -67,8 +66,6 @@ struct omap2_onenand {
         struct regulator *regulator;
 };
 
-static const char *part_probes[] = { "cmdlinepart", NULL,  };
-
 static void omap2_onenand_dma_cb(int lch, u16 ch_status, void *data)
 {
         struct omap2_onenand *c = data;
@@ -741,6 +738,7 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
                 c->regulator = regulator_get(&pdev->dev, "vonenand");
                 if (IS_ERR(c->regulator)) {
                         dev_err(&pdev->dev,  "Failed to get regulator\n");
+                        r = PTR_ERR(c->regulator);
                         goto err_release_dma;
                 }
                 c->onenand.enable = omap2_onenand_enable;
@@ -753,13 +751,9 @@ static int __devinit omap2_onenand_probe(struct platform_device *pdev)
         if ((r = onenand_scan(&c->mtd, 1)) < 0)
                 goto err_release_regulator;
 
-        r = parse_mtd_partitions(&c->mtd, part_probes, &c->parts, 0);
-        if (r > 0)
-                r = mtd_device_register(&c->mtd, c->parts, r);
-        else if (pdata->parts != NULL)
-                r = mtd_device_register(&c->mtd, pdata->parts, pdata->nr_parts);
-        else
-                r = mtd_device_register(&c->mtd, NULL, 0);
+        r = mtd_device_parse_register(&c->mtd, NULL, 0,
+                        pdata ? pdata->parts : NULL,
+                        pdata ? pdata->nr_parts : 0);
         if (r)
                 goto err_release_onenand;
 
@@ -786,7 +780,6 @@ err_release_mem_region:
 err_free_cs:
         gpmc_cs_free(c->gpmc_cs);
 err_kfree:
-        kfree(c->parts);
         kfree(c);
 
         return r;
@@ -809,7 +802,6 @@ static int __devexit omap2_onenand_remove(struct platform_device *pdev)
         iounmap(c->onenand.base);
         release_mem_region(c->phys_base, ONENAND_IO_SIZE);
         gpmc_cs_free(c->gpmc_cs);
-        kfree(c->parts);
         kfree(c);
 
         return 0;
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index ac9e959802a7..a8394730b4b6 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1015,7 +1015,7 @@ static void onenand_release_device(struct mtd_info *mtd)
 }
 
 /**
- * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
+ * onenand_transfer_auto_oob - [INTERN] oob auto-placement transfer
  * @param mtd           MTD device structure
  * @param buf           destination address
  * @param column        oob offset to read from
@@ -1079,7 +1079,7 @@ static int onenand_recover_lsb(struct mtd_info *mtd, loff_t addr, int status)
                 return status;
 
         /* check if we failed due to uncorrectable error */
-        if (status != -EBADMSG && status != ONENAND_BBT_READ_ECC_ERROR)
+        if (!mtd_is_eccerr(status) && status != ONENAND_BBT_READ_ECC_ERROR)
                 return status;
 
         /* check if address lies in MLC region */
@@ -1122,10 +1122,10 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
         int ret = 0;
         int writesize = this->writesize;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n",
-              __func__, (unsigned int) from, (int) len);
+        pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+                        (int)len);
 
-        if (ops->mode == MTD_OOB_AUTO)
+        if (ops->mode == MTD_OPS_AUTO_OOB)
                 oobsize = this->ecclayout->oobavail;
         else
                 oobsize = mtd->oobsize;
@@ -1159,7 +1159,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
                         if (unlikely(ret))
                                 ret = onenand_recover_lsb(mtd, from, ret);
                         onenand_update_bufferram(mtd, from, !ret);
-                        if (ret == -EBADMSG)
+                        if (mtd_is_eccerr(ret))
                                 ret = 0;
                         if (ret)
                                 break;
@@ -1170,7 +1170,7 @@ static int onenand_mlc_read_ops_nolock(struct mtd_info *mtd, loff_t from,
                         thisooblen = oobsize - oobcolumn;
                         thisooblen = min_t(int, thisooblen, ooblen - oobread);
 
-                        if (ops->mode == MTD_OOB_AUTO)
+                        if (ops->mode == MTD_OPS_AUTO_OOB)
                                 onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
                         else
                                 this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
@@ -1226,10 +1226,10 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
         int ret = 0, boundary = 0;
         int writesize = this->writesize;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n",
-                        __func__, (unsigned int) from, (int) len);
+        pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+                        (int)len);
 
-        if (ops->mode == MTD_OOB_AUTO)
+        if (ops->mode == MTD_OPS_AUTO_OOB)
                 oobsize = this->ecclayout->oobavail;
         else
                 oobsize = mtd->oobsize;
@@ -1255,7 +1255,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
                         this->command(mtd, ONENAND_CMD_READ, from, writesize);
                         ret = this->wait(mtd, FL_READING);
                         onenand_update_bufferram(mtd, from, !ret);
-                        if (ret == -EBADMSG)
+                        if (mtd_is_eccerr(ret))
                                 ret = 0;
                 }
         }
@@ -1291,7 +1291,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
                         thisooblen = oobsize - oobcolumn;
                         thisooblen = min_t(int, thisooblen, ooblen - oobread);
 
-                        if (ops->mode == MTD_OOB_AUTO)
+                        if (ops->mode == MTD_OPS_AUTO_OOB)
                                 onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
                         else
                                 this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
@@ -1315,7 +1315,7 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
                 /* Now wait for load */
                 ret = this->wait(mtd, FL_READING);
                 onenand_update_bufferram(mtd, from, !ret);
-                if (ret == -EBADMSG)
+                if (mtd_is_eccerr(ret))
                         ret = 0;
         }
 
@@ -1351,19 +1351,19 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
         struct mtd_ecc_stats stats;
         int read = 0, thislen, column, oobsize;
         size_t len = ops->ooblen;
-        mtd_oob_mode_t mode = ops->mode;
+        unsigned int mode = ops->mode;
         u_char *buf = ops->oobbuf;
         int ret = 0, readcmd;
 
         from += ops->ooboffs;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %i\n",
-                __func__, (unsigned int) from, (int) len);
+        pr_debug("%s: from = 0x%08x, len = %i\n", __func__, (unsigned int)from,
+                        (int)len);
 
         /* Initialize return length value */
         ops->oobretlen = 0;
 
-        if (mode == MTD_OOB_AUTO)
+        if (mode == MTD_OPS_AUTO_OOB)
                 oobsize = this->ecclayout->oobavail;
         else
                 oobsize = mtd->oobsize;
@@ -1403,13 +1403,13 @@ static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
                 if (unlikely(ret))
                         ret = onenand_recover_lsb(mtd, from, ret);
 
-                if (ret && ret != -EBADMSG) {
+                if (ret && !mtd_is_eccerr(ret)) {
                         printk(KERN_ERR "%s: read failed = 0x%x\n",
                                 __func__, ret);
                         break;
                 }
 
-                if (mode == MTD_OOB_AUTO)
+                if (mode == MTD_OPS_AUTO_OOB)
                         onenand_transfer_auto_oob(mtd, buf, column, thislen);
                 else
                         this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
@@ -1487,10 +1487,10 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
         int ret;
 
         switch (ops->mode) {
-        case MTD_OOB_PLACE:
-        case MTD_OOB_AUTO:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_AUTO_OOB:
                 break;
-        case MTD_OOB_RAW:
+        case MTD_OPS_RAW:
                 /* Not implemented yet */
         default:
                 return -EINVAL;
@@ -1576,8 +1576,8 @@ int onenand_bbt_read_oob(struct mtd_info *mtd, loff_t from,
         size_t len = ops->ooblen;
         u_char *buf = ops->oobbuf;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08x, len = %zi\n",
-                __func__, (unsigned int) from, len);
+        pr_debug("%s: from = 0x%08x, len = %zi\n", __func__, (unsigned int)from,
+                        len);
 
         /* Initialize return value */
         ops->oobretlen = 0;
@@ -1750,8 +1750,8 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
         /* Wait for any existing operation to clear */
         onenand_panic_wait(mtd);
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n",
-                __func__, (unsigned int) to, (int) len);
+        pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+                        (int)len);
 
         /* Initialize retlen, in case of early exit */
         *retlen = 0;
@@ -1821,7 +1821,7 @@ static int onenand_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
 }
 
 /**
- * onenand_fill_auto_oob - [Internal] oob auto-placement transfer
+ * onenand_fill_auto_oob - [INTERN] oob auto-placement transfer
  * @param mtd           MTD device structure
  * @param oob_buf       oob buffer
  * @param buf           source address
@@ -1883,8 +1883,8 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
         u_char *oobbuf;
         int ret = 0, cmd;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n",
-                __func__, (unsigned int) to, (int) len);
+        pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+                        (int)len);
 
         /* Initialize retlen, in case of early exit */
         ops->retlen = 0;
@@ -1908,7 +1908,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
         if (!len)
                 return 0;
 
-        if (ops->mode == MTD_OOB_AUTO)
+        if (ops->mode == MTD_OPS_AUTO_OOB)
                 oobsize = this->ecclayout->oobavail;
         else
                 oobsize = mtd->oobsize;
@@ -1945,7 +1945,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
                                 /* We send data to spare ram with oobsize
                                  * to prevent byte access */
                                 memset(oobbuf, 0xff, mtd->oobsize);
-                                if (ops->mode == MTD_OOB_AUTO)
+                                if (ops->mode == MTD_OPS_AUTO_OOB)
                                         onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen);
                                 else
                                         memcpy(oobbuf + oobcolumn, oob, thisooblen);
@@ -2055,7 +2055,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
 
 
 /**
- * onenand_write_oob_nolock - [Internal] OneNAND write out-of-band
+ * onenand_write_oob_nolock - [INTERN] OneNAND write out-of-band
  * @param mtd           MTD device structure
  * @param to            offset to write to
  * @param len           number of bytes to write
@@ -2074,17 +2074,17 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
         u_char *oobbuf;
         size_t len = ops->ooblen;
         const u_char *buf = ops->oobbuf;
-        mtd_oob_mode_t mode = ops->mode;
+        unsigned int mode = ops->mode;
 
         to += ops->ooboffs;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n",
-                __func__, (unsigned int) to, (int) len);
+        pr_debug("%s: to = 0x%08x, len = %i\n", __func__, (unsigned int)to,
+                        (int)len);
 
         /* Initialize retlen, in case of early exit */
         ops->oobretlen = 0;
 
-        if (mode == MTD_OOB_AUTO)
+        if (mode == MTD_OPS_AUTO_OOB)
                 oobsize = this->ecclayout->oobavail;
         else
                 oobsize = mtd->oobsize;
@@ -2128,7 +2128,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
                 /* We send data to spare ram with oobsize
                  * to prevent byte access */
                 memset(oobbuf, 0xff, mtd->oobsize);
-                if (mode == MTD_OOB_AUTO)
+                if (mode == MTD_OPS_AUTO_OOB)
                         onenand_fill_auto_oob(mtd, oobbuf, buf, column, thislen);
                 else
                         memcpy(oobbuf + column, buf, thislen);
@@ -2217,10 +2217,10 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to,
         int ret;
 
         switch (ops->mode) {
-        case MTD_OOB_PLACE:
-        case MTD_OOB_AUTO:
+        case MTD_OPS_PLACE_OOB:
+        case MTD_OPS_AUTO_OOB:
                 break;
-        case MTD_OOB_RAW:
+        case MTD_OPS_RAW:
                 /* Not implemented yet */
         default:
                 return -EINVAL;
@@ -2281,7 +2281,7 @@ static int onenand_multiblock_erase_verify(struct mtd_info *mtd,
 }
 
 /**
- * onenand_multiblock_erase - [Internal] erase block(s) using multiblock erase
+ * onenand_multiblock_erase - [INTERN] erase block(s) using multiblock erase
  * @param mtd           MTD device structure
  * @param instr         erase instruction
  * @param region        erase region
@@ -2397,7 +2397,7 @@ static int onenand_multiblock_erase(struct mtd_info *mtd,
 
 
 /**
- * onenand_block_by_block_erase - [Internal] erase block(s) using regular erase
+ * onenand_block_by_block_erase - [INTERN] erase block(s) using regular erase
  * @param mtd           MTD device structure
  * @param instr         erase instruction
  * @param region        erase region
@@ -2489,8 +2489,9 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
         struct mtd_erase_region_info *region = NULL;
         loff_t region_offset = 0;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: start=0x%012llx, len=%llu\n", __func__,
-              (unsigned long long) instr->addr, (unsigned long long) instr->len);
+        pr_debug("%s: start=0x%012llx, len=%llu\n", __func__,
+                        (unsigned long long)instr->addr,
+                        (unsigned long long)instr->len);
 
         /* Do not allow erase past end of device */
         if (unlikely((len + addr) > mtd->size)) {
@@ -2558,7 +2559,7 @@ static int onenand_erase(struct mtd_info *mtd, struct erase_info *instr)
  */
 static void onenand_sync(struct mtd_info *mtd)
 {
-        DEBUG(MTD_DEBUG_LEVEL3, "%s: called\n", __func__);
+        pr_debug("%s: called\n", __func__);
 
         /* Grab the lock and see if the device is available */
         onenand_get_device(mtd, FL_SYNCING);
@@ -2602,7 +2603,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
         struct bbm_info *bbm = this->bbm;
         u_char buf[2] = {0, 0};
         struct mtd_oob_ops ops = {
-                .mode = MTD_OOB_PLACE,
+                .mode = MTD_OPS_PLACE_OOB,
                 .ooblen = 2,
                 .oobbuf = buf,
                 .ooboffs = 0,
@@ -2922,7 +2923,7 @@ static int onenand_otp_command(struct mtd_info *mtd, int cmd, loff_t addr,
 }
 
 /**
- * onenand_otp_write_oob_nolock - [Internal] OneNAND write out-of-band, specific to OTP
+ * onenand_otp_write_oob_nolock - [INTERN] OneNAND write out-of-band, specific to OTP
  * @param mtd           MTD device structure
  * @param to            offset to write to
  * @param len           number of bytes to write
@@ -3170,7 +3171,7 @@ static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len,
                 this->command(mtd, ONENAND_CMD_RESET, 0, 0);
                 this->wait(mtd, FL_RESETING);
         } else {
-                ops.mode = MTD_OOB_PLACE;
+                ops.mode = MTD_OPS_PLACE_OOB;
                 ops.ooblen = len;
                 ops.oobbuf = buf;
                 ops.ooboffs = 0;
@@ -3429,6 +3430,19 @@ static void onenand_check_features(struct mtd_info *mtd)
                 else if (numbufs == 1) {
                         this->options |= ONENAND_HAS_4KB_PAGE;
                         this->options |= ONENAND_HAS_CACHE_PROGRAM;
+                        /*
+                         * There are two different 4KiB pagesize chips
+                         * and no way to detect it by H/W config values.
+                         *
+                         * To detect the correct NOP for each chips,
+                         * It should check the version ID as workaround.
+                         *
+                         * Now it has as following
+                         * KFM4G16Q4M has NOP 4 with version ID 0x0131
+                         * KFM4G16Q5M has NOP 1 with versoin ID 0x013e
+                         */
+                        if ((this->version_id & 0xf) == 0xe)
+                                this->options |= ONENAND_HAS_NOP_1;
                 }
 
         case ONENAND_DEVICE_DENSITY_2Gb:
@@ -3663,7 +3677,7 @@ static int flexonenand_check_blocks_erased(struct mtd_info *mtd, int start, int
         int i, ret;
         int block;
         struct mtd_oob_ops ops = {
-                .mode = MTD_OOB_PLACE,
+                .mode = MTD_OPS_PLACE_OOB,
                 .ooboffs = 0,
                 .ooblen = mtd->oobsize,
                 .datbuf = NULL,
@@ -4054,6 +4068,8 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
                         this->ecclayout = &onenand_oob_128;
                         mtd->subpage_sft = 2;
                 }
+                if (ONENAND_IS_NOP_1(this))
+                        mtd->subpage_sft = 0;
                 break;
         case 64:
                 this->ecclayout = &onenand_oob_64;
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index b2d7fc5ea25d..66fe3b7e7851 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -81,7 +81,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
         startblock = 0;
         from = 0;
 
-        ops.mode = MTD_OOB_PLACE;
+        ops.mode = MTD_OPS_PLACE_OOB;
         ops.ooblen = readlen;
         ops.oobbuf = buf;
         ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
@@ -154,7 +154,7 @@ static int onenand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt)
         block = (int) (onenand_block(this, offs) << 1);
         res = (bbm->bbt[block >> 3] >> (block & 0x06)) & 0x03;
 
-        DEBUG(MTD_DEBUG_LEVEL2, "onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n",
+        pr_debug("onenand_isbad_bbt: bbt info for offs 0x%08x: (block %d) 0x%02x\n",
                 (unsigned int) offs, block >> 1, res);
 
         switch ((int) res) {
@@ -189,10 +189,8 @@ int onenand_scan_bbt(struct mtd_info *mtd, struct nand_bbt_descr *bd)
         len = this->chipsize >> (this->erase_shift + 2);
         /* Allocate memory (2bit per block) and clear the memory bad block table */
         bbm->bbt = kzalloc(len, GFP_KERNEL);
-        if (!bbm->bbt) {
-                printk(KERN_ERR "onenand_scan_bbt: Out of memory\n");
+        if (!bbm->bbt)
                 return -ENOMEM;
-        }
 
         /* Set the bad block position */
         bbm->badblockpos = ONENAND_BADBLOCK_POS;
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 3306b5b3c736..5474547eafc2 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -147,7 +147,6 @@ struct s3c_onenand {
         struct resource *dma_res;
         unsigned long   phys_base;
         struct completion       complete;
-        struct mtd_partition *parts;
 };
 
 #define CMD_MAP_00(dev, addr)           (dev->cmd_map(MAP_00, ((addr) << 1)))
@@ -157,8 +156,6 @@ struct s3c_onenand {
 
 static struct s3c_onenand *onenand;
 
-static const char *part_probes[] = { "cmdlinepart", NULL, };
-
 static inline int s3c_read_reg(int offset)
 {
         return readl(onenand->base + offset);
@@ -1017,13 +1014,9 @@ static int s3c_onenand_probe(struct platform_device *pdev)
         if (s3c_read_reg(MEM_CFG_OFFSET) & ONENAND_SYS_CFG1_SYNC_READ)
                 dev_info(&onenand->pdev->dev, "OneNAND Sync. Burst Read enabled\n");
 
-        err = parse_mtd_partitions(mtd, part_probes, &onenand->parts, 0);
-        if (err > 0)
-                mtd_device_register(mtd, onenand->parts, err);
-        else if (err <= 0 && pdata && pdata->parts)
-                mtd_device_register(mtd, pdata->parts, pdata->nr_parts);
-        else
-                err = mtd_device_register(mtd, NULL, 0);
+        err = mtd_device_parse_register(mtd, NULL, 0,
+                                        pdata ? pdata->parts : NULL,
+                                        pdata ? pdata->nr_parts : 0);
 
         platform_set_drvdata(pdev, mtd);
 
diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index 84b4dda023f4..e366b1d84ead 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -57,8 +57,8 @@ static inline int redboot_checksum(struct fis_image_desc *img)
 }
 
 static int parse_redboot_partitions(struct mtd_info *master,
-                             struct mtd_partition **pparts,
-                             unsigned long fis_origin)
+                                    struct mtd_partition **pparts,
+                                    struct mtd_part_parser_data *data)
 {
         int nrparts = 0;
         struct fis_image_desc *buf;
@@ -198,11 +198,10 @@ static int parse_redboot_partitions(struct mtd_info *master,
                         goto out;
                 }
                 new_fl->img = &buf[i];
-                if (fis_origin) {
-                        buf[i].flash_base -= fis_origin;
-                } else {
-                        buf[i].flash_base &= master->size-1;
-                }
+                if (data && data->origin)
+                        buf[i].flash_base -= data->origin;
+                else
+                        buf[i].flash_base &= master->size-1;
 
                 /* I'm sure the JFFS2 code has done me permanent damage.
                  * I now think the following is _normal_
@@ -298,6 +297,9 @@ static struct mtd_part_parser redboot_parser = {
         .name = "RedBoot",
 };
 
+/* mtd parsers will request the module by parser name */
+MODULE_ALIAS("RedBoot");
+
 static int __init redboot_parser_init(void)
 {
         return register_mtd_parser(&redboot_parser);
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index ed3d6cd2c6dc..fddb714e323c 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -34,7 +34,7 @@ module_param(debug, int, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(debug, "Debug level (0-2)");
 
 
-/* ------------------- sysfs attributtes ---------------------------------- */
+/* ------------------- sysfs attributes ---------------------------------- */
 struct sm_sysfs_attribute {
         struct device_attribute dev_attr;
         char *data;
@@ -138,7 +138,7 @@ static int sm_get_lba(uint8_t *lba)
         if ((lba[0] & 0xF8) != 0x10)
                 return -2;
 
-        /* check parity - endianess doesn't matter */
+        /* check parity - endianness doesn't matter */
         if (hweight16(*(uint16_t *)lba) & 1)
                 return -2;
 
@@ -147,7 +147,7 @@ static int sm_get_lba(uint8_t *lba)
 
 
 /*
- * Read LBA asscociated with block
+ * Read LBA associated with block
  * returns -1, if block is erased
  * returns -2 if error happens
  */
@@ -252,11 +252,11 @@ static int sm_read_sector(struct sm_ftl *ftl,
                 return 0;
         }
 
-        /* User might not need the oob, but we do for data vertification */
+        /* User might not need the oob, but we do for data verification */
         if (!oob)
                 oob = &tmp_oob;
 
-        ops.mode = ftl->smallpagenand ? MTD_OOB_RAW : MTD_OOB_PLACE;
+        ops.mode = ftl->smallpagenand ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB;
         ops.ooboffs = 0;
         ops.ooblen = SM_OOB_SIZE;
         ops.oobbuf = (void *)oob;
@@ -276,12 +276,12 @@ again:
                         return ret;
         }
 
-        /* Unfortunelly, oob read will _always_ succeed,
+        /* Unfortunately, oob read will _always_ succeed,
                 despite card removal..... */
         ret = mtd->read_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops);
 
         /* Test for unknown errors */
-        if (ret != 0 && ret != -EUCLEAN && ret != -EBADMSG) {
+        if (ret != 0 && !mtd_is_bitflip_or_eccerr(ret)) {
                 dbg("read of block %d at zone %d, failed due to error (%d)",
                         block, zone, ret);
                 goto again;
@@ -306,7 +306,7 @@ again:
         }
 
         /* Test ECC*/
-        if (ret == -EBADMSG ||
+        if (mtd_is_eccerr(ret) ||
                 (ftl->smallpagenand && sm_correct_sector(buffer, oob))) {
 
                 dbg("read of block %d at zone %d, failed due to ECC error",
@@ -336,7 +336,7 @@ static int sm_write_sector(struct sm_ftl *ftl,
         if (ftl->unstable)
                 return -EIO;
 
-        ops.mode = ftl->smallpagenand ? MTD_OOB_RAW : MTD_OOB_PLACE;
+        ops.mode = ftl->smallpagenand ? MTD_OPS_RAW : MTD_OPS_PLACE_OOB;
         ops.len = SM_SECTOR_SIZE;
         ops.datbuf = buffer;
         ops.ooboffs = 0;
@@ -447,14 +447,14 @@ static void sm_mark_block_bad(struct sm_ftl *ftl, int zone, int block)
 
         /* We aren't checking the return value, because we don't care */
         /* This also fails on fake xD cards, but I guess these won't expose
-                any bad blocks till fail completly */
+                any bad blocks till fail completely */
         for (boffset = 0; boffset < ftl->block_size; boffset += SM_SECTOR_SIZE)
                 sm_write_sector(ftl, zone, block, boffset, NULL, &oob);
 }
 
 /*
  * Erase a block within a zone
- * If erase succedes, it updates free block fifo, otherwise marks block as bad
+ * If erase succeeds, it updates free block fifo, otherwise marks block as bad
  */
 static int sm_erase_block(struct sm_ftl *ftl, int zone_num, uint16_t block,
                           int put_free)
@@ -510,7 +510,7 @@ static void sm_erase_callback(struct erase_info *self)
         complete(&ftl->erase_completion);
 }
 
-/* Throughtly test that block is valid. */
+/* Thoroughly test that block is valid. */
 static int sm_check_block(struct sm_ftl *ftl, int zone, int block)
 {
         int boffset;
@@ -526,7 +526,7 @@ static int sm_check_block(struct sm_ftl *ftl, int zone, int block)
         for (boffset = 0; boffset < ftl->block_size;
                                         boffset += SM_SECTOR_SIZE) {
 
-                /* This shoudn't happen anyway */
+                /* This shouldn't happen anyway */
                 if (sm_read_sector(ftl, zone, block, boffset, NULL, &oob))
                         return -2;
 
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index 5cd189793332..976e3d28b962 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -135,8 +135,7 @@ static int get_valid_cis_sector(struct mtd_info *mtd)
                                 /* Found */
                                 cis_sector = (int)(offset >> SECTOR_SHIFT);
                         } else {
-                                DEBUG(MTD_DEBUG_LEVEL1,
-                                        "SSFDC_RO: CIS/IDI sector not found"
+                                pr_debug("SSFDC_RO: CIS/IDI sector not found"
                                         " on %s (mtd%d)\n", mtd->name,
                                         mtd->index);
                         }
@@ -170,7 +169,7 @@ static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf)
         struct mtd_oob_ops ops;
         int ret;
 
-        ops.mode = MTD_OOB_RAW;
+        ops.mode = MTD_OPS_RAW;
         ops.ooboffs = 0;
         ops.ooblen = OOB_SIZE;
         ops.oobbuf = buf;
@@ -221,8 +220,7 @@ static int get_logical_address(uint8_t *oob_buf)
                         block_address >>= 1;
 
                         if (get_parity(block_address, 10) != parity) {
-                                DEBUG(MTD_DEBUG_LEVEL0,
-                                        "SSFDC_RO: logical address field%d"
+                                pr_debug("SSFDC_RO: logical address field%d"
                                         "parity error(0x%04X)\n", j+1,
                                         block_address);
                         } else {
@@ -235,7 +233,7 @@ static int get_logical_address(uint8_t *oob_buf)
         if (!ok)
                 block_address = -2;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "SSFDC_RO: get_logical_address() %d\n",
+        pr_debug("SSFDC_RO: get_logical_address() %d\n",
                 block_address);
 
         return block_address;
@@ -249,7 +247,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc)
         int ret, block_address, phys_block;
         struct mtd_info *mtd = ssfdc->mbd.mtd;
 
-        DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: build_block_map() nblks=%d (%luK)\n",
+        pr_debug("SSFDC_RO: build_block_map() nblks=%d (%luK)\n",
               ssfdc->map_len,
               (unsigned long)ssfdc->map_len * ssfdc->erase_size / 1024);
 
@@ -262,8 +260,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc)
 
                 ret = read_raw_oob(mtd, offset, oob_buf);
                 if (ret < 0) {
-                        DEBUG(MTD_DEBUG_LEVEL0,
-                                "SSFDC_RO: mtd read_oob() failed at %lu\n",
+                        pr_debug("SSFDC_RO: mtd read_oob() failed at %lu\n",
                                 offset);
                         return -1;
                 }
@@ -279,8 +276,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc)
                         ssfdc->logic_block_map[block_address] =
                                 (unsigned short)phys_block;
 
-                        DEBUG(MTD_DEBUG_LEVEL2,
-                                "SSFDC_RO: build_block_map() phys_block=%d,"
+                        pr_debug("SSFDC_RO: build_block_map() phys_block=%d,"
                                 "logic_block_addr=%d, zone=%d\n",
                                 phys_block, block_address, zone_index);
                 }
@@ -304,11 +300,8 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
                 return;
 
         ssfdc = kzalloc(sizeof(struct ssfdcr_record), GFP_KERNEL);
-        if (!ssfdc) {
-                printk(KERN_WARNING
-                        "SSFDC_RO: out of memory for data structures\n");
+        if (!ssfdc)
                 return;
-        }
 
         ssfdc->mbd.mtd = mtd;
         ssfdc->mbd.devnum = -1;
@@ -319,8 +312,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
         ssfdc->erase_size = mtd->erasesize;
         ssfdc->map_len = (u32)mtd->size / mtd->erasesize;
 
-        DEBUG(MTD_DEBUG_LEVEL1,
-                "SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n",
+        pr_debug("SSFDC_RO: cis_block=%d,erase_size=%d,map_len=%d,n_zones=%d\n",
                 ssfdc->cis_block, ssfdc->erase_size, ssfdc->map_len,
                 DIV_ROUND_UP(ssfdc->map_len, MAX_PHYS_BLK_PER_ZONE));
 
@@ -331,7 +323,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
         ssfdc->cylinders = (unsigned short)(((u32)mtd->size >> SECTOR_SHIFT) /
                         ((long)ssfdc->sectors * (long)ssfdc->heads));
 
-        DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n",
+        pr_debug("SSFDC_RO: using C:%d H:%d S:%d == %ld sects\n",
                 ssfdc->cylinders, ssfdc->heads , ssfdc->sectors,
                 (long)ssfdc->cylinders * (long)ssfdc->heads *
                 (long)ssfdc->sectors);
@@ -342,11 +334,8 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
         /* Allocate logical block map */
         ssfdc->logic_block_map = kmalloc(sizeof(ssfdc->logic_block_map[0]) *
                                          ssfdc->map_len, GFP_KERNEL);
-        if (!ssfdc->logic_block_map) {
-                printk(KERN_WARNING
-                        "SSFDC_RO: out of memory for data structures\n");
+        if (!ssfdc->logic_block_map)
                 goto out_err;
-        }
         memset(ssfdc->logic_block_map, 0xff, sizeof(ssfdc->logic_block_map[0]) *
                 ssfdc->map_len);
 
@@ -371,7 +360,7 @@ static void ssfdcr_remove_dev(struct mtd_blktrans_dev *dev)
 {
         struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev;
 
-        DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: remove_dev (i=%d)\n", dev->devnum);
+        pr_debug("SSFDC_RO: remove_dev (i=%d)\n", dev->devnum);
 
         del_mtd_blktrans_dev(dev);
         kfree(ssfdc->logic_block_map);
@@ -387,8 +376,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev,
         offset = (int)(logic_sect_no % sectors_per_block);
         block_address = (int)(logic_sect_no / sectors_per_block);
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-                "SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d,"
+        pr_debug("SSFDC_RO: ssfdcr_readsect(%lu) sec_per_blk=%d, ofst=%d,"
                 " block_addr=%d\n", logic_sect_no, sectors_per_block, offset,
                 block_address);
 
@@ -397,8 +385,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev,
 
         block_address = ssfdc->logic_block_map[block_address];
 
-        DEBUG(MTD_DEBUG_LEVEL3,
-                "SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n",
+        pr_debug("SSFDC_RO: ssfdcr_readsect() phys_block_addr=%d\n",
                 block_address);
 
         if (block_address < 0xffff) {
@@ -407,8 +394,7 @@ static int ssfdcr_readsect(struct mtd_blktrans_dev *dev,
                 sect_no = (unsigned long)block_address * sectors_per_block +
                                 offset;
 
-                DEBUG(MTD_DEBUG_LEVEL3,
-                        "SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n",
+                pr_debug("SSFDC_RO: ssfdcr_readsect() phys_sect_no=%lu\n",
                         sect_no);
 
                 if (read_physical_sector(ssfdc->mbd.mtd, buf, sect_no) < 0)
@@ -424,7 +410,7 @@ static int ssfdcr_getgeo(struct mtd_blktrans_dev *dev,  struct hd_geometry *geo)
 {
         struct ssfdcr_record *ssfdc = (struct ssfdcr_record *)dev;
 
-        DEBUG(MTD_DEBUG_LEVEL1, "SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n",
+        pr_debug("SSFDC_RO: ssfdcr_getgeo() C=%d, H=%d, S=%d\n",
                         ssfdc->cylinders, ssfdc->heads, ssfdc->sectors);
 
         geo->heads = ssfdc->heads;
diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c
index dec92ae6111a..933f7e5f32d3 100644
--- a/drivers/mtd/tests/mtd_oobtest.c
+++ b/drivers/mtd/tests/mtd_oobtest.c
@@ -30,7 +30,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_oobtest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -131,7 +131,7 @@ static int write_eraseblock(int ebnum)
 
         for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
                 set_random_data(writebuf, use_len);
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = use_len;
@@ -184,7 +184,7 @@ static int verify_eraseblock(int ebnum)
 
         for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) {
                 set_random_data(writebuf, use_len);
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = use_len;
@@ -211,7 +211,7 @@ static int verify_eraseblock(int ebnum)
                 if (use_offset != 0 || use_len < mtd->ecclayout->oobavail) {
                         int k;
 
-                        ops.mode      = MTD_OOB_AUTO;
+                        ops.mode      = MTD_OPS_AUTO_OOB;
                         ops.len       = 0;
                         ops.retlen    = 0;
                         ops.ooblen    = mtd->ecclayout->oobavail;
@@ -276,7 +276,7 @@ static int verify_eraseblock_in_one_go(int ebnum)
         size_t len = mtd->ecclayout->oobavail * pgcnt;
 
         set_random_data(writebuf, len);
-        ops.mode      = MTD_OOB_AUTO;
+        ops.mode      = MTD_OPS_AUTO_OOB;
         ops.len       = 0;
         ops.retlen    = 0;
         ops.ooblen    = len;
@@ -366,6 +366,13 @@ static int __init mtd_oobtest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
 
         mtd = get_mtd_device(NULL, dev);
@@ -507,7 +514,7 @@ static int __init mtd_oobtest_init(void)
                 addr0 += mtd->erasesize;
 
         /* Attempt to write off end of OOB */
-        ops.mode      = MTD_OOB_AUTO;
+        ops.mode      = MTD_OPS_AUTO_OOB;
         ops.len       = 0;
         ops.retlen    = 0;
         ops.ooblen    = 1;
@@ -527,7 +534,7 @@ static int __init mtd_oobtest_init(void)
         }
 
         /* Attempt to read off end of OOB */
-        ops.mode      = MTD_OOB_AUTO;
+        ops.mode      = MTD_OPS_AUTO_OOB;
         ops.len       = 0;
         ops.retlen    = 0;
         ops.ooblen    = 1;
@@ -551,7 +558,7 @@ static int __init mtd_oobtest_init(void)
                        "block is bad\n");
         else {
                 /* Attempt to write off end of device */
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = mtd->ecclayout->oobavail + 1;
@@ -571,7 +578,7 @@ static int __init mtd_oobtest_init(void)
                 }
 
                 /* Attempt to read off end of device */
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = mtd->ecclayout->oobavail + 1;
@@ -595,7 +602,7 @@ static int __init mtd_oobtest_init(void)
                         goto out;
 
                 /* Attempt to write off end of device */
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = mtd->ecclayout->oobavail;
@@ -615,7 +622,7 @@ static int __init mtd_oobtest_init(void)
                 }
 
                 /* Attempt to read off end of device */
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = mtd->ecclayout->oobavail;
@@ -655,7 +662,7 @@ static int __init mtd_oobtest_init(void)
                 addr = (i + 1) * mtd->erasesize - mtd->writesize;
                 for (pg = 0; pg < cnt; ++pg) {
                         set_random_data(writebuf, sz);
-                        ops.mode      = MTD_OOB_AUTO;
+                        ops.mode      = MTD_OPS_AUTO_OOB;
                         ops.len       = 0;
                         ops.retlen    = 0;
                         ops.ooblen    = sz;
@@ -683,7 +690,7 @@ static int __init mtd_oobtest_init(void)
                         continue;
                 set_random_data(writebuf, mtd->ecclayout->oobavail * 2);
                 addr = (i + 1) * mtd->erasesize - mtd->writesize;
-                ops.mode      = MTD_OOB_AUTO;
+                ops.mode      = MTD_OPS_AUTO_OOB;
                 ops.len       = 0;
                 ops.retlen    = 0;
                 ops.ooblen    = mtd->ecclayout->oobavail * 2;
diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c
index 00b937e38c1d..afafb6935fd0 100644
--- a/drivers/mtd/tests/mtd_pagetest.c
+++ b/drivers/mtd/tests/mtd_pagetest.c
@@ -30,7 +30,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_pagetest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -128,7 +128,7 @@ static int verify_eraseblock(int ebnum)
         for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) {
                 /* Do a read to set the internal dataRAMs to different data */
                 err = mtd->read(mtd, addr0, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -136,7 +136,7 @@ static int verify_eraseblock(int ebnum)
                         return err;
                 }
                 err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -146,7 +146,7 @@ static int verify_eraseblock(int ebnum)
                 memset(twopages, 0, bufsize);
                 read = 0;
                 err = mtd->read(mtd, addr, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -164,7 +164,7 @@ static int verify_eraseblock(int ebnum)
                 unsigned long oldnext = next;
                 /* Do a read to set the internal dataRAMs to different data */
                 err = mtd->read(mtd, addr0, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -172,7 +172,7 @@ static int verify_eraseblock(int ebnum)
                         return err;
                 }
                 err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -182,7 +182,7 @@ static int verify_eraseblock(int ebnum)
                 memset(twopages, 0, bufsize);
                 read = 0;
                 err = mtd->read(mtd, addr, bufsize, &read, twopages);
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != bufsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -231,7 +231,7 @@ static int crosstest(void)
         read = 0;
         addr = addrn - pgsize - pgsize;
         err = mtd->read(mtd, addr, pgsize, &read, pp1);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -244,7 +244,7 @@ static int crosstest(void)
         read = 0;
         addr = addrn - pgsize - pgsize - pgsize;
         err = mtd->read(mtd, addr, pgsize, &read, pp1);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -258,7 +258,7 @@ static int crosstest(void)
         addr = addr0;
         printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
         err = mtd->read(mtd, addr, pgsize, &read, pp2);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -272,7 +272,7 @@ static int crosstest(void)
         addr = addrn - pgsize;
         printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
         err = mtd->read(mtd, addr, pgsize, &read, pp3);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -286,7 +286,7 @@ static int crosstest(void)
         addr = addr0;
         printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
         err = mtd->read(mtd, addr, pgsize, &read, pp4);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -345,7 +345,7 @@ static int erasecrosstest(void)
         printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
         memset(readbuf, 0, pgsize);
         err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -383,7 +383,7 @@ static int erasecrosstest(void)
         printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
         memset(readbuf, 0, pgsize);
         err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -439,7 +439,7 @@ static int erasetest(void)
 
         printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
         err = mtd->read(mtd, addr0, pgsize, &read, twopages);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != pgsize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -504,6 +504,13 @@ static int __init mtd_pagetest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
 
         mtd = get_mtd_device(NULL, dev);
diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c
index afe71aa15c4b..550fe51225a7 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/mtd_readtest.c
@@ -29,7 +29,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_readtest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -66,7 +66,7 @@ static int read_eraseblock_by_page(int ebnum)
                 if (mtd->oobsize) {
                         struct mtd_oob_ops ops;
 
-                        ops.mode      = MTD_OOB_PLACE;
+                        ops.mode      = MTD_OPS_PLACE_OOB;
                         ops.len       = 0;
                         ops.retlen    = 0;
                         ops.ooblen    = mtd->oobsize;
@@ -75,7 +75,8 @@ static int read_eraseblock_by_page(int ebnum)
                         ops.datbuf    = NULL;
                         ops.oobbuf    = oobbuf;
                         ret = mtd->read_oob(mtd, addr, &ops);
-                        if (ret || ops.oobretlen != mtd->oobsize) {
+                        if ((ret && !mtd_is_bitflip(ret)) ||
+                                        ops.oobretlen != mtd->oobsize) {
                                 printk(PRINT_PREF "error: read oob failed at "
                                                   "%#llx\n", (long long)addr);
                                 if (!err)
@@ -169,6 +170,12 @@ static int __init mtd_readtest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
 
         mtd = get_mtd_device(NULL, dev);
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index 627d4e2466a3..493b367bdd35 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -29,7 +29,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_speedtest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -216,7 +216,7 @@ static int read_eraseblock(int ebnum)
 
         err = mtd->read(mtd, addr, mtd->erasesize, &read, iobuf);
         /* Ignore corrected ECC errors */
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (err || read != mtd->erasesize) {
                 printk(PRINT_PREF "error: read failed at %#llx\n", addr);
@@ -237,7 +237,7 @@ static int read_eraseblock_by_page(int ebnum)
         for (i = 0; i < pgcnt; i++) {
                 err = mtd->read(mtd, addr, pgsize, &read, buf);
                 /* Ignore corrected ECC errors */
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != pgsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -263,7 +263,7 @@ static int read_eraseblock_by_2pages(int ebnum)
         for (i = 0; i < n; i++) {
                 err = mtd->read(mtd, addr, sz, &read, buf);
                 /* Ignore corrected ECC errors */
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != sz) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -278,7 +278,7 @@ static int read_eraseblock_by_2pages(int ebnum)
         if (pgcnt % 2) {
                 err = mtd->read(mtd, addr, pgsize, &read, buf);
                 /* Ignore corrected ECC errors */
-                if (err == -EUCLEAN)
+                if (mtd_is_bitflip(err))
                         err = 0;
                 if (err || read != pgsize) {
                         printk(PRINT_PREF "error: read failed at %#llx\n",
@@ -361,6 +361,13 @@ static int __init mtd_speedtest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         if (count)
                 printk(PRINT_PREF "MTD device: %d    count: %d\n", dev, count);
         else
diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c
index 531625fc9259..52ffd9120e0d 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -30,7 +30,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_stresstest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -154,7 +154,7 @@ static int do_read(void)
         }
         addr = eb * mtd->erasesize + offs;
         err = mtd->read(mtd, addr, len, &read, readbuf);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 err = 0;
         if (unlikely(err || read != len)) {
                 printk(PRINT_PREF "error: read failed at 0x%llx\n",
@@ -250,6 +250,13 @@ static int __init mtd_stresstest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
 
         mtd = get_mtd_device(NULL, dev);
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c
index 334eae53a3db..1a05bfac4eee 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/mtd_subpagetest.c
@@ -29,7 +29,7 @@
 
 #define PRINT_PREF KERN_INFO "mtd_subpagetest: "
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -198,7 +198,7 @@ static int verify_eraseblock(int ebnum)
         read = 0;
         err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
         if (unlikely(err || read != subpgsize)) {
-                if (err == -EUCLEAN && read == subpgsize) {
+                if (mtd_is_bitflip(err) && read == subpgsize) {
                         printk(PRINT_PREF "ECC correction at %#llx\n",
                                (long long)addr);
                         err = 0;
@@ -226,7 +226,7 @@ static int verify_eraseblock(int ebnum)
         read = 0;
         err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
         if (unlikely(err || read != subpgsize)) {
-                if (err == -EUCLEAN && read == subpgsize) {
+                if (mtd_is_bitflip(err) && read == subpgsize) {
                         printk(PRINT_PREF "ECC correction at %#llx\n",
                                (long long)addr);
                         err = 0;
@@ -264,7 +264,7 @@ static int verify_eraseblock2(int ebnum)
                 read = 0;
                 err = mtd->read(mtd, addr, subpgsize * k, &read, readbuf);
                 if (unlikely(err || read != subpgsize * k)) {
-                        if (err == -EUCLEAN && read == subpgsize * k) {
+                        if (mtd_is_bitflip(err) && read == subpgsize * k) {
                                 printk(PRINT_PREF "ECC correction at %#llx\n",
                                        (long long)addr);
                                 err = 0;
@@ -298,7 +298,7 @@ static int verify_eraseblock_ff(int ebnum)
                 read = 0;
                 err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
                 if (unlikely(err || read != subpgsize)) {
-                        if (err == -EUCLEAN && read == subpgsize) {
+                        if (mtd_is_bitflip(err) && read == subpgsize) {
                                 printk(PRINT_PREF "ECC correction at %#llx\n",
                                        (long long)addr);
                                 err = 0;
@@ -379,6 +379,13 @@ static int __init mtd_subpagetest_init(void)
 
         printk(KERN_INFO "\n");
         printk(KERN_INFO "=================================================\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
 
         mtd = get_mtd_device(NULL, dev);
diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c
index 5c6c3d248901..03ab649a6964 100644
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/mtd_torturetest.c
@@ -46,7 +46,7 @@ static int pgcnt;
 module_param(pgcnt, int, S_IRUGO);
 MODULE_PARM_DESC(pgcnt, "number of pages per eraseblock to torture (0 => all)");
 
-static int dev;
+static int dev = -EINVAL;
 module_param(dev, int, S_IRUGO);
 MODULE_PARM_DESC(dev, "MTD device number to use");
 
@@ -138,7 +138,7 @@ static inline int check_eraseblock(int ebnum, unsigned char *buf)
 
 retry:
         err = mtd->read(mtd, addr, len, &read, check_buf);
-        if (err == -EUCLEAN)
+        if (mtd_is_bitflip(err))
                 printk(PRINT_PREF "single bit flip occurred at EB %d "
                        "MTD reported that it was fixed.\n", ebnum);
         else if (err) {
@@ -213,6 +213,13 @@ static int __init tort_init(void)
         printk(KERN_INFO "=================================================\n");
         printk(PRINT_PREF "Warning: this program is trying to wear out your "
                "flash, stop it if this is not wanted.\n");
+
+        if (dev < 0) {
+                printk(PRINT_PREF "Please specify a valid mtd-device via module paramter\n");
+                printk(KERN_CRIT "CAREFUL: This test wipes all data on the specified MTD device!\n");
+                return -EINVAL;
+        }
+
         printk(PRINT_PREF "MTD device: %d\n", dev);
         printk(PRINT_PREF "torture %d eraseblocks (%d-%d) of mtd%d\n",
                ebcnt, eb, eb + ebcnt - 1, dev);
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index 4be671815014..fb7f19b62d91 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -443,7 +443,7 @@ retry:
                 if (err == UBI_IO_BITFLIPS) {
                         scrub = 1;
                         err = 0;
-                } else if (err == -EBADMSG) {
+                } else if (mtd_is_eccerr(err)) {
                         if (vol->vol_type == UBI_DYNAMIC_VOLUME)
                                 goto out_unlock;
                         scrub = 1;
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 6ba55c235873..f20b6f22f240 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -172,9 +172,9 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
 retry:
         err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
         if (err) {
-                const char *errstr = (err == -EBADMSG) ? " (ECC error)" : "";
+                const char *errstr = mtd_is_eccerr(err) ? " (ECC error)" : "";
 
-                if (err == -EUCLEAN) {
+                if (mtd_is_bitflip(err)) {
                         /*
                          * -EUCLEAN is reported if there was a bit-flip which
                          * was corrected, so this is harmless.
@@ -205,7 +205,7 @@ retry:
                  * all the requested data. But some buggy drivers might do
                  * this, so we change it to -EIO.
                  */
-                if (read != len && err == -EBADMSG) {
+                if (read != len && mtd_is_eccerr(err)) {
                         ubi_assert(0);
                         err = -EIO;
                 }
@@ -469,7 +469,7 @@ static int torture_peb(struct ubi_device *ubi, int pnum)
 
 out:
         mutex_unlock(&ubi->buf_mutex);
-        if (err == UBI_IO_BITFLIPS || err == -EBADMSG) {
+        if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err)) {
                 /*
                  * If a bit-flip or data integrity error was detected, the test
                  * has not passed because it happened on a freshly erased
@@ -760,7 +760,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
 
         read_err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);
         if (read_err) {
-                if (read_err != UBI_IO_BITFLIPS && read_err != -EBADMSG)
+                if (read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err))
                         return read_err;
 
                 /*
@@ -776,7 +776,7 @@ int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,
 
         magic = be32_to_cpu(ec_hdr->magic);
         if (magic != UBI_EC_HDR_MAGIC) {
-                if (read_err == -EBADMSG)
+                if (mtd_is_eccerr(read_err))
                         return UBI_IO_BAD_HDR_EBADMSG;
 
                 /*
@@ -1032,12 +1032,12 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
         p = (char *)vid_hdr - ubi->vid_hdr_shift;
         read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,
                           ubi->vid_hdr_alsize);
-        if (read_err && read_err != UBI_IO_BITFLIPS && read_err != -EBADMSG)
+        if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err))
                 return read_err;
 
         magic = be32_to_cpu(vid_hdr->magic);
         if (magic != UBI_VID_HDR_MAGIC) {
-                if (read_err == -EBADMSG)
+                if (mtd_is_eccerr(read_err))
                         return UBI_IO_BAD_HDR_EBADMSG;
 
                 if (ubi_check_pattern(vid_hdr, 0xFF, UBI_VID_HDR_SIZE)) {
@@ -1219,7 +1219,7 @@ static int paranoid_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum)
                 return -ENOMEM;
 
         err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);
-        if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG)
+        if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err))
                 goto exit;
 
         crc = crc32(UBI_CRC32_INIT, ec_hdr, UBI_EC_HDR_SIZE_CRC);
@@ -1306,7 +1306,7 @@ static int paranoid_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)
         p = (char *)vid_hdr - ubi->vid_hdr_shift;
         err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,
                           ubi->vid_hdr_alsize);
-        if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG)
+        if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err))
                 goto exit;
 
         crc = crc32(UBI_CRC32_INIT, vid_hdr, UBI_EC_HDR_SIZE_CRC);
@@ -1358,7 +1358,7 @@ int ubi_dbg_check_write(struct ubi_device *ubi, const void *buf, int pnum,
         }
 
         err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf1);
-        if (err && err != -EUCLEAN)
+        if (err && !mtd_is_bitflip(err))
                 goto out_free;
 
         for (i = 0; i < len; i++) {
@@ -1422,7 +1422,7 @@ int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
         }
 
         err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
-        if (err && err != -EUCLEAN) {
+        if (err && !mtd_is_bitflip(err)) {
                 ubi_err("error %d while reading %d bytes from PEB %d:%d, "
                         "read %zd bytes", err, len, pnum, offset, read);
                 goto error;
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index d39716e5b204..1a35fc5e3b40 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -410,7 +410,7 @@ int ubi_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
                 return 0;
 
         err = ubi_eba_read_leb(ubi, vol, lnum, buf, offset, len, check);
-        if (err && err == -EBADMSG && vol->vol_type == UBI_STATIC_VOLUME) {
+        if (err && mtd_is_eccerr(err) && vol->vol_type == UBI_STATIC_VOLUME) {
                 ubi_warn("mark volume %d as corrupted", vol_id);
                 vol->corrupted = 1;
         }
diff --git a/drivers/mtd/ubi/misc.c b/drivers/mtd/ubi/misc.c
index ff2a65c37f69..f6a7d7ac4b98 100644
--- a/drivers/mtd/ubi/misc.c
+++ b/drivers/mtd/ubi/misc.c
@@ -81,7 +81,7 @@ int ubi_check_volume(struct ubi_device *ubi, int vol_id)
 
                 err = ubi_eba_read_leb(ubi, vol, i, buf, 0, size, 1);
                 if (err) {
-                        if (err == -EBADMSG)
+                        if (mtd_is_eccerr(err))
                                 err = 1;
                         break;
                 }
diff --git a/drivers/mtd/ubi/scan.c b/drivers/mtd/ubi/scan.c
index a3a198f9b98d..0cb17d936b5a 100644
--- a/drivers/mtd/ubi/scan.c
+++ b/drivers/mtd/ubi/scan.c
@@ -395,7 +395,7 @@ static int compare_lebs(struct ubi_device *ubi, const struct ubi_scan_leb *seb,
         }
 
         err = ubi_io_read_data(ubi, buf, pnum, 0, len);
-        if (err && err != UBI_IO_BITFLIPS && err != -EBADMSG)
+        if (err && err != UBI_IO_BITFLIPS && !mtd_is_eccerr(err))
                 goto out_free_buf;
 
         data_crc = be32_to_cpu(vid_hdr->data_crc);
@@ -793,7 +793,7 @@ static int check_corruption(struct ubi_device *ubi, struct ubi_vid_hdr *vid_hdr,
 
         err = ubi_io_read(ubi, ubi->peb_buf1, pnum, ubi->leb_start,
                           ubi->leb_size);
-        if (err == UBI_IO_BITFLIPS || err == -EBADMSG) {
+        if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err)) {
                 /*
                  * Bit-flips or integrity errors while reading the data area.
                  * It is difficult to say for sure what type of corruption is
diff --git a/drivers/mtd/ubi/vtbl.c b/drivers/mtd/ubi/vtbl.c
index 4b50a3029b84..9ad18da1891d 100644
--- a/drivers/mtd/ubi/vtbl.c
+++ b/drivers/mtd/ubi/vtbl.c
@@ -423,7 +423,7 @@ static struct ubi_vtbl_record *process_lvol(struct ubi_device *ubi,
 
                 err = ubi_io_read_data(ubi, leb[seb->lnum], seb->pnum, 0,
                                        ubi->vtbl_size);
-                if (err == UBI_IO_BITFLIPS || err == -EBADMSG)
+                if (err == UBI_IO_BITFLIPS || mtd_is_eccerr(err))
                         /*
                          * Scrub the PEB later. Note, -EBADMSG indicates an
                          * uncorrectable ECC error, but we have our own CRC and