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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 09:11:16 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 09:11:16 -0800
commite0d65113a70f1dc514e625cc4e7a7485a4bf72df (patch)
tree7320a130dc304623f5cf4b5dd8f67fb1776225ca /include
parentcf5e15fbd72c13977720aa15b7b7e00e1d8fd8f2 (diff)
parent48e546b7f281f251893baa40769581fd15f085fb (diff)
downloadlinux-e0d65113a70f1dc514e625cc4e7a7485a4bf72df.tar.gz
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.
Diffstat (limited to 'include')
-rw-r--r--include/linux/mtd/bbm.h39
-rw-r--r--include/linux/mtd/mtd.h82
-rw-r--r--include/linux/mtd/nand.h92
-rw-r--r--include/linux/mtd/onenand.h4
-rw-r--r--include/linux/mtd/partitions.h46
-rw-r--r--include/linux/mtd/physmap.h17
-rw-r--r--include/mtd/mtd-abi.h122
7 files changed, 229 insertions, 173 deletions
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 57cc0e63714f..c4eec228eef9 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -86,24 +86,39 @@ struct nand_bbt_descr {
 #define NAND_BBT_VERSION	0x00000100
 /* Create a bbt if none exists */
 #define NAND_BBT_CREATE		0x00000200
+/*
+ * Create an empty BBT with no vendor information. Vendor's information may be
+ * unavailable, for example, if the NAND controller has a different data and OOB
+ * layout or if this information is already purged. Must be used in conjunction
+ * with NAND_BBT_CREATE.
+ */
+#define NAND_BBT_CREATE_EMPTY	0x00000400
 /* Search good / bad pattern through all pages of a block */
-#define NAND_BBT_SCANALLPAGES	0x00000400
+#define NAND_BBT_SCANALLPAGES	0x00000800
 /* Scan block empty during good / bad block scan */
-#define NAND_BBT_SCANEMPTY	0x00000800
+#define NAND_BBT_SCANEMPTY	0x00001000
 /* Write bbt if neccecary */
-#define NAND_BBT_WRITE		0x00001000
+#define NAND_BBT_WRITE		0x00002000
 /* Read and write back block contents when writing bbt */
-#define NAND_BBT_SAVECONTENT	0x00002000
+#define NAND_BBT_SAVECONTENT	0x00004000
 /* Search good / bad pattern on the first and the second page */
-#define NAND_BBT_SCAN2NDPAGE	0x00004000
+#define NAND_BBT_SCAN2NDPAGE	0x00008000
 /* Search good / bad pattern on the last page of the eraseblock */
-#define NAND_BBT_SCANLASTPAGE	0x00008000
-/* Chip stores bad block marker on BOTH 1st and 6th bytes of OOB */
-#define NAND_BBT_SCANBYTE1AND6 0x00100000
-/* The nand_bbt_descr was created dynamicaly and must be freed */
-#define NAND_BBT_DYNAMICSTRUCT 0x00200000
-/* The bad block table does not OOB for marker */
-#define NAND_BBT_NO_OOB		0x00400000
+#define NAND_BBT_SCANLASTPAGE	0x00010000
+/*
+ * Use a flash based bad block table. By default, OOB identifier is saved in
+ * OOB area. This option is passed to the default bad block table function.
+ */
+#define NAND_BBT_USE_FLASH	0x00020000
+/* Do not store flash based bad block table in OOB area; store it in-band */
+#define NAND_BBT_NO_OOB		0x00040000
+
+/*
+ * Flag set by nand_create_default_bbt_descr(), marking that the nand_bbt_descr
+ * was allocated dynamicaly and must be freed in nand_release(). Has no meaning
+ * in nand_chip.bbt_options.
+ */
+#define NAND_BBT_DYNAMICSTRUCT	0x80000000
 
 /* The maximum number of blocks to scan for a bbt */
 #define NAND_BBT_SCAN_MAXBLOCKS	4
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 37be05bbfbc8..9f5b312af783 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -32,17 +32,19 @@
 #define MTD_CHAR_MAJOR 90
 #define MTD_BLOCK_MAJOR 31
 
-#define MTD_ERASE_PENDING      	0x01
+#define MTD_ERASE_PENDING	0x01
 #define MTD_ERASING		0x02
 #define MTD_ERASE_SUSPEND	0x04
-#define MTD_ERASE_DONE          0x08
-#define MTD_ERASE_FAILED        0x10
+#define MTD_ERASE_DONE		0x08
+#define MTD_ERASE_FAILED	0x10
 
 #define MTD_FAIL_ADDR_UNKNOWN -1LL
 
-/* If the erase fails, fail_addr might indicate exactly which block failed.  If
-   fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not
-   specific to any particular block. */
+/*
+ * If the erase fails, fail_addr might indicate exactly which block failed. If
+ * fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level
+ * or was not specific to any particular block.
+ */
 struct erase_info {
 	struct mtd_info *mtd;
 	uint64_t addr;
@@ -59,26 +61,12 @@ struct erase_info {
 };
 
 struct mtd_erase_region_info {
-	uint64_t offset;			/* At which this region starts, from the beginning of the MTD */
+	uint64_t offset;		/* At which this region starts, from the beginning of the MTD */
 	uint32_t erasesize;		/* For this region */
 	uint32_t numblocks;		/* Number of blocks of erasesize in this region */
 	unsigned long *lockmap;		/* If keeping bitmap of locks */
 };
 
-/*
- * oob operation modes
- *
- * MTD_OOB_PLACE:	oob data are placed at the given offset
- * MTD_OOB_AUTO:	oob data are automatically placed at the free areas
- *			which are defined by the ecclayout
- * MTD_OOB_RAW:		mode to read oob and data without doing ECC checking
- */
-typedef enum {
-	MTD_OOB_PLACE,
-	MTD_OOB_AUTO,
-	MTD_OOB_RAW,
-} mtd_oob_mode_t;
-
 /**
  * struct mtd_oob_ops - oob operation operands
  * @mode:	operation mode
@@ -90,7 +78,7 @@ typedef enum {
  * @ooblen:	number of oob bytes to write/read
  * @oobretlen:	number of oob bytes written/read
  * @ooboffs:	offset of oob data in the oob area (only relevant when
- *		mode = MTD_OOB_PLACE)
+ *		mode = MTD_OPS_PLACE_OOB or MTD_OPS_RAW)
  * @datbuf:	data buffer - if NULL only oob data are read/written
  * @oobbuf:	oob data buffer
  *
@@ -99,7 +87,7 @@ typedef enum {
  * OOB area.
  */
 struct mtd_oob_ops {
-	mtd_oob_mode_t	mode;
+	unsigned int	mode;
 	size_t		len;
 	size_t		retlen;
 	size_t		ooblen;
@@ -173,7 +161,7 @@ struct mtd_info {
 	const char *name;
 	int index;
 
-	/* ecc layout structure pointer - read only ! */
+	/* ECC layout structure pointer - read only! */
 	struct nand_ecclayout *ecclayout;
 
 	/* Data for variable erase regions. If numeraseregions is zero,
@@ -324,10 +312,15 @@ static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)
 	/* Kernel-side ioctl definitions */
 
 struct mtd_partition;
-
-extern int mtd_device_register(struct mtd_info *master,
-			       const struct mtd_partition *parts,
-			       int nr_parts);
+struct mtd_part_parser_data;
+
+extern int mtd_device_parse_register(struct mtd_info *mtd,
+			      const char **part_probe_types,
+			      struct mtd_part_parser_data *parser_data,
+			      const struct mtd_partition *defparts,
+			      int defnr_parts);
+#define mtd_device_register(master, parts, nr_parts)	\
+	mtd_device_parse_register(master, NULL, NULL, parts, nr_parts)
 extern int mtd_device_unregister(struct mtd_info *master);
 extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
 extern int __get_mtd_device(struct mtd_info *mtd);
@@ -356,27 +349,16 @@ void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size);
 
 void mtd_erase_callback(struct erase_info *instr);
 
-/*
- * Debugging macro and defines
- */
-#define MTD_DEBUG_LEVEL0	(0)	/* Quiet   */
-#define MTD_DEBUG_LEVEL1	(1)	/* Audible */
-#define MTD_DEBUG_LEVEL2	(2)	/* Loud    */
-#define MTD_DEBUG_LEVEL3	(3)	/* Noisy   */
-
-#ifdef CONFIG_MTD_DEBUG
-#define DEBUG(n, args...)				\
-	do {						\
-		if (n <= CONFIG_MTD_DEBUG_VERBOSE)	\
-			printk(KERN_INFO args);		\
-	} while(0)
-#else /* CONFIG_MTD_DEBUG */
-#define DEBUG(n, args...)				\
-	do {						\
-		if (0)					\
-			printk(KERN_INFO args);		\
-	} while(0)
-
-#endif /* CONFIG_MTD_DEBUG */
+static inline int mtd_is_bitflip(int err) {
+	return err == -EUCLEAN;
+}
+
+static inline int mtd_is_eccerr(int err) {
+	return err == -EBADMSG;
+}
+
+static inline int mtd_is_bitflip_or_eccerr(int err) {
+	return mtd_is_bitflip(err) || mtd_is_eccerr(err);
+}
 
 #endif /* __MTD_MTD_H__ */
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index c2b9ac4fbc4a..904131bab501 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -42,10 +42,10 @@ extern void nand_release(struct mtd_info *mtd);
 /* Internal helper for board drivers which need to override command function */
 extern void nand_wait_ready(struct mtd_info *mtd);
 
-/* locks all blockes present in the device */
+/* locks all blocks present in the device */
 extern int nand_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
 
-/* unlocks specified locked blockes */
+/* unlocks specified locked blocks */
 extern int nand_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len);
 
 /* The maximum number of NAND chips in an array */
@@ -150,7 +150,7 @@ typedef enum {
 #define NAND_ECC_READ		0
 /* Reset Hardware ECC for write */
 #define NAND_ECC_WRITE		1
-/* Enable Hardware ECC before syndrom is read back from flash */
+/* Enable Hardware ECC before syndrome is read back from flash */
 #define NAND_ECC_READSYN	2
 
 /* Bit mask for flags passed to do_nand_read_ecc */
@@ -163,7 +163,7 @@ typedef enum {
  */
 /* Chip can not auto increment pages */
 #define NAND_NO_AUTOINCR	0x00000001
-/* Buswitdh is 16 bit */
+/* Buswidth is 16 bit */
 #define NAND_BUSWIDTH_16	0x00000002
 /* Device supports partial programming without padding */
 #define NAND_NO_PADDING		0x00000004
@@ -219,27 +219,15 @@ typedef enum {
 #define NAND_CHIPOPTIONS_MSK	(0x0000ffff & ~NAND_NO_AUTOINCR)
 
 /* Non chip related options */
-/*
- * Use a flash based bad block table. OOB identifier is saved in OOB area.
- * This option is passed to the default bad block table function.
- */
-#define NAND_USE_FLASH_BBT	0x00010000
 /* This option skips the bbt scan during initialization. */
-#define NAND_SKIP_BBTSCAN	0x00020000
+#define NAND_SKIP_BBTSCAN	0x00010000
 /*
  * This option is defined if the board driver allocates its own buffers
  * (e.g. because it needs them DMA-coherent).
  */
-#define NAND_OWN_BUFFERS	0x00040000
+#define NAND_OWN_BUFFERS	0x00020000
 /* Chip may not exist, so silence any errors in scan */
-#define NAND_SCAN_SILENT_NODEV	0x00080000
-/*
- * If passed additionally to NAND_USE_FLASH_BBT then BBT code will not touch
- * the OOB area.
- */
-#define NAND_USE_FLASH_BBT_NO_OOB	0x00800000
-/* Create an empty BBT with no vendor information if the BBT is available */
-#define NAND_CREATE_EMPTY_BBT		0x01000000
+#define NAND_SCAN_SILENT_NODEV	0x00040000
 
 /* Options set by nand scan */
 /* Nand scan has allocated controller struct */
@@ -331,27 +319,29 @@ struct nand_hw_control {
 };
 
 /**
- * struct nand_ecc_ctrl - Control structure for ecc
- * @mode:	ecc mode
- * @steps:	number of ecc steps per page
- * @size:	data bytes per ecc step
- * @bytes:	ecc bytes per step
- * @total:	total number of ecc bytes per page
- * @prepad:	padding information for syndrome based ecc generators
- * @postpad:	padding information for syndrome based ecc generators
+ * struct nand_ecc_ctrl - Control structure for ECC
+ * @mode:	ECC mode
+ * @steps:	number of ECC steps per page
+ * @size:	data bytes per ECC step
+ * @bytes:	ECC bytes per step
+ * @total:	total number of ECC bytes per page
+ * @prepad:	padding information for syndrome based ECC generators
+ * @postpad:	padding information for syndrome based ECC generators
  * @layout:	ECC layout control struct pointer
- * @priv:	pointer to private ecc control data
- * @hwctl:	function to control hardware ecc generator. Must only
+ * @priv:	pointer to private ECC control data
+ * @hwctl:	function to control hardware ECC generator. Must only
  *		be provided if an hardware ECC is available
- * @calculate:	function for ecc calculation or readback from ecc hardware
- * @correct:	function for ecc correction, matching to ecc generator (sw/hw)
+ * @calculate:	function for ECC calculation or readback from ECC hardware
+ * @correct:	function for ECC correction, matching to ECC generator (sw/hw)
  * @read_page_raw:	function to read a raw page without ECC
  * @write_page_raw:	function to write a raw page without ECC
- * @read_page:	function to read a page according to the ecc generator
+ * @read_page:	function to read a page according to the ECC generator
  *		requirements.
  * @read_subpage:	function to read parts of the page covered by ECC.
- * @write_page:	function to write a page according to the ecc generator
+ * @write_page:	function to write a page according to the ECC generator
  *		requirements.
+ * @write_oob_raw:	function to write chip OOB data without ECC
+ * @read_oob_raw:	function to read chip OOB data without ECC
  * @read_oob:	function to read chip OOB data
  * @write_oob:	function to write chip OOB data
  */
@@ -380,6 +370,10 @@ struct nand_ecc_ctrl {
 			uint32_t offs, uint32_t len, uint8_t *buf);
 	void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
 			const uint8_t *buf);
+	int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
+			int page);
+	int (*read_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
+			int page, int sndcmd);
 	int (*read_oob)(struct mtd_info *mtd, struct nand_chip *chip, int page,
 			int sndcmd);
 	int (*write_oob)(struct mtd_info *mtd, struct nand_chip *chip,
@@ -388,8 +382,8 @@ struct nand_ecc_ctrl {
 
 /**
  * struct nand_buffers - buffer structure for read/write
- * @ecccalc:	buffer for calculated ecc
- * @ecccode:	buffer for ecc read from flash
+ * @ecccalc:	buffer for calculated ECC
+ * @ecccode:	buffer for ECC read from flash
  * @databuf:	buffer for data - dynamically sized
  *
  * Do not change the order of buffers. databuf and oobrbuf must be in
@@ -422,7 +416,7 @@ struct nand_buffers {
  *			mtd->oobsize, mtd->writesize and so on.
  *			@id_data contains the 8 bytes values of NAND_CMD_READID.
  *			Return with the bus width.
- * @dev_ready:		[BOARDSPECIFIC] hardwarespecific function for accesing
+ * @dev_ready:		[BOARDSPECIFIC] hardwarespecific function for accessing
  *			device ready/busy line. If set to NULL no access to
  *			ready/busy is available and the ready/busy information
  *			is read from the chip status register.
@@ -430,17 +424,17 @@ struct nand_buffers {
  *			commands to the chip.
  * @waitfunc:		[REPLACEABLE] hardwarespecific function for wait on
  *			ready.
- * @ecc:		[BOARDSPECIFIC] ecc control ctructure
+ * @ecc:		[BOARDSPECIFIC] ECC control structure
  * @buffers:		buffer structure for read/write
  * @hwcontrol:		platform-specific hardware control structure
- * @ops:		oob operation operands
  * @erase_cmd:		[INTERN] erase command write function, selectable due
  *			to AND support.
  * @scan_bbt:		[REPLACEABLE] function to scan bad block table
  * @chip_delay:		[BOARDSPECIFIC] chip dependent delay for transferring
  *			data from array to read regs (tR).
  * @state:		[INTERN] the current state of the NAND device
- * @oob_poi:		poison value buffer
+ * @oob_poi:		"poison value buffer," used for laying out OOB data
+ *			before writing
  * @page_shift:		[INTERN] number of address bits in a page (column
  *			address bits).
  * @phys_erase_shift:	[INTERN] number of address bits in a physical eraseblock
@@ -449,6 +443,9 @@ struct nand_buffers {
  * @options:		[BOARDSPECIFIC] various chip options. They can partly
  *			be set to inform nand_scan about special functionality.
  *			See the defines for further explanation.
+ * @bbt_options:	[INTERN] bad block specific options. All options used
+ *			here must come from bbm.h. By default, these options
+ *			will be copied to the appropriate nand_bbt_descr's.
  * @badblockpos:	[INTERN] position of the bad block marker in the oob
  *			area.
  * @badblockbits:	[INTERN] number of bits to left-shift the bad block
@@ -464,7 +461,7 @@ struct nand_buffers {
  *			non 0 if ONFI supported.
  * @onfi_params:	[INTERN] holds the ONFI page parameter when ONFI is
  *			supported, 0 otherwise.
- * @ecclayout:		[REPLACEABLE] the default ecc placement scheme
+ * @ecclayout:		[REPLACEABLE] the default ECC placement scheme
  * @bbt:		[INTERN] bad block table pointer
  * @bbt_td:		[REPLACEABLE] bad block table descriptor for flash
  *			lookup.
@@ -472,9 +469,9 @@ struct nand_buffers {
  * @badblock_pattern:	[REPLACEABLE] bad block scan pattern used for initial
  *			bad block scan.
  * @controller:		[REPLACEABLE] a pointer to a hardware controller
- *			structure which is shared among multiple independend
+ *			structure which is shared among multiple independent
  *			devices.
- * @priv:		[OPTIONAL] pointer to private chip date
+ * @priv:		[OPTIONAL] pointer to private chip data
  * @errstat:		[OPTIONAL] hardware specific function to perform
  *			additional error status checks (determine if errors are
  *			correctable).
@@ -509,6 +506,7 @@ struct nand_chip {
 
 	int chip_delay;
 	unsigned int options;
+	unsigned int bbt_options;
 
 	int page_shift;
 	int phys_erase_shift;
@@ -536,8 +534,6 @@ struct nand_chip {
 	struct nand_buffers *buffers;
 	struct nand_hw_control hwcontrol;
 
-	struct mtd_oob_ops ops;
-
 	uint8_t *bbt;
 	struct nand_bbt_descr *bbt_td;
 	struct nand_bbt_descr *bbt_md;
@@ -611,10 +607,9 @@ extern int nand_do_read(struct mtd_info *mtd, loff_t from, size_t len,
  * @partitions:		mtd partition list
  * @chip_delay:		R/B delay value in us
  * @options:		Option flags, e.g. 16bit buswidth
- * @ecclayout:		ecc layout info structure
+ * @bbt_options:	BBT option flags, e.g. NAND_BBT_USE_FLASH
+ * @ecclayout:		ECC layout info structure
  * @part_probe_types:	NULL-terminated array of probe types
- * @set_parts:		platform specific function to set partitions
- * @priv:		hardware controller specific settings
  */
 struct platform_nand_chip {
 	int nr_chips;
@@ -624,9 +619,8 @@ struct platform_nand_chip {
 	struct nand_ecclayout *ecclayout;
 	int chip_delay;
 	unsigned int options;
+	unsigned int bbt_options;
 	const char **part_probe_types;
-	void (*set_parts)(uint64_t size, struct platform_nand_chip *chip);
-	void *priv;
 };
 
 /* Keep gcc happy */
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 52b6f187bf49..4596503c9da9 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -184,6 +184,9 @@ struct onenand_chip {
 #define ONENAND_IS_CACHE_PROGRAM(this)					\
 	(this->options & ONENAND_HAS_CACHE_PROGRAM)
 
+#define ONENAND_IS_NOP_1(this)						\
+	(this->options & ONENAND_HAS_NOP_1)
+
 /* Check byte access in OneNAND */
 #define ONENAND_CHECK_BYTE_ACCESS(addr)		(addr & 0x1)
 
@@ -195,6 +198,7 @@ struct onenand_chip {
 #define ONENAND_HAS_2PLANE		(0x0004)
 #define ONENAND_HAS_4KB_PAGE		(0x0008)
 #define ONENAND_HAS_CACHE_PROGRAM	(0x0010)
+#define ONENAND_HAS_NOP_1		(0x0020)
 #define ONENAND_SKIP_UNLOCK_CHECK	(0x0100)
 #define ONENAND_PAGEBUF_ALLOC		(0x1000)
 #define ONENAND_OOBBUF_ALLOC		(0x2000)
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
index 3a6f0372fc96..2475228c1158 100644
--- a/include/linux/mtd/partitions.h
+++ b/include/linux/mtd/partitions.h
@@ -24,7 +24,9 @@
  * 	will extend to the end of the master MTD device.
  * offset: absolute starting position within the master MTD device; if
  * 	defined as MTDPART_OFS_APPEND, the partition will start where the
- * 	previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block.
+ *	previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block;
+ *	if MTDPART_OFS_RETAIN, consume as much as possible, leaving size
+ *	after the end of partition.
  * mask_flags: contains flags that have to be masked (removed) from the
  * 	master MTD flag set for the corresponding MTD partition.
  * 	For example, to force a read-only partition, simply adding
@@ -42,12 +44,25 @@ struct mtd_partition {
 	struct nand_ecclayout *ecclayout;	/* out of band layout for this partition (NAND only) */
 };
 
+#define MTDPART_OFS_RETAIN	(-3)
 #define MTDPART_OFS_NXTBLK	(-2)
 #define MTDPART_OFS_APPEND	(-1)
 #define MTDPART_SIZ_FULL	(0)
 
 
 struct mtd_info;
+struct device_node;
+
+/**
+ * struct mtd_part_parser_data - used to pass data to MTD partition parsers.
+ * @origin: for RedBoot, start address of MTD device
+ * @of_node: for OF parsers, device node containing partitioning information
+ */
+struct mtd_part_parser_data {
+	unsigned long origin;
+	struct device_node *of_node;
+};
+
 
 /*
  * Functions dealing with the various ways of partitioning the space
@@ -57,37 +72,12 @@ struct mtd_part_parser {
 	struct list_head list;
 	struct module *owner;
 	const char *name;
-	int (*parse_fn)(struct mtd_info *, struct mtd_partition **, unsigned long);
+	int (*parse_fn)(struct mtd_info *, struct mtd_partition **,
+			struct mtd_part_parser_data *);
 };
 
 extern int register_mtd_parser(struct mtd_part_parser *parser);
 extern int deregister_mtd_parser(struct mtd_part_parser *parser);
-extern int parse_mtd_partitions(struct mtd_info *master, const char **types,
-				struct mtd_partition **pparts, unsigned long origin);
-
-#define put_partition_parser(p) do { module_put((p)->owner); } while(0)
-
-struct device;
-struct device_node;
-
-#ifdef CONFIG_MTD_OF_PARTS
-int __devinit of_mtd_parse_partitions(struct device *dev,
-                                      struct device_node *node,
-                                      struct mtd_partition **pparts);
-#else
-static inline int of_mtd_parse_partitions(struct device *dev,
-					  struct device_node *node,
-					  struct mtd_partition **pparts)
-{
-	return 0;
-}
-#endif
-
-#ifdef CONFIG_MTD_CMDLINE_PARTS
-static inline int mtd_has_cmdlinepart(void) { return 1; }
-#else
-static inline int mtd_has_cmdlinepart(void) { return 0; }
-#endif
 
 int mtd_is_partition(struct mtd_info *mtd);
 int mtd_add_partition(struct mtd_info *master, char *name,
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index e5f21d293c70..04e018160e2b 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -32,21 +32,4 @@ struct physmap_flash_data {
 	struct mtd_partition	*parts;
 };
 
-/*
- * Board needs to specify the exact mapping during their setup time.
- */
-void physmap_configure(unsigned long addr, unsigned long size,
-		int bankwidth, void (*set_vpp)(struct map_info *, int) );
-
-/*
- * Machines that wish to do flash partition may want to call this function in
- * their setup routine.
- *
- *	physmap_set_partitions(mypartitions, num_parts);
- *
- * Note that one can always override this hard-coded partition with
- * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
- */
-void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
-
 #endif /* __LINUX_MTD_PHYSMAP__ */
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index 2f7d45bcbd24..1a7e1d20adf9 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -45,6 +45,51 @@ struct mtd_oob_buf64 {
 	__u64 usr_ptr;
 };
 
+/**
+ * MTD operation modes
+ *
+ * @MTD_OPS_PLACE_OOB:	OOB data are placed at the given offset (default)
+ * @MTD_OPS_AUTO_OOB:	OOB data are automatically placed at the free areas
+ *			which are defined by the internal ecclayout
+ * @MTD_OPS_RAW:	data are transferred as-is, with no error correction;
+ *			this mode implies %MTD_OPS_PLACE_OOB
+ *
+ * These modes can be passed to ioctl(MEMWRITE) and are also used internally.
+ * See notes on "MTD file modes" for discussion on %MTD_OPS_RAW vs.
+ * %MTD_FILE_MODE_RAW.
+ */
+enum {
+	MTD_OPS_PLACE_OOB = 0,
+	MTD_OPS_AUTO_OOB = 1,
+	MTD_OPS_RAW = 2,
+};
+
+/**
+ * struct mtd_write_req - data structure for requesting a write operation
+ *
+ * @start:	start address
+ * @len:	length of data buffer
+ * @ooblen:	length of OOB buffer
+ * @usr_data:	user-provided data buffer
+ * @usr_oob:	user-provided OOB buffer
+ * @mode:	MTD mode (see "MTD operation modes")
+ * @padding:	reserved, must be set to 0
+ *
+ * This structure supports ioctl(MEMWRITE) operations, allowing data and/or OOB
+ * writes in various modes. To write to OOB-only, set @usr_data == NULL, and to
+ * write data-only, set @usr_oob == NULL. However, setting both @usr_data and
+ * @usr_oob to NULL is not allowed.
+ */
+struct mtd_write_req {
+	__u64 start;
+	__u64 len;
+	__u64 ooblen;
+	__u64 usr_data;
+	__u64 usr_oob;
+	__u8 mode;
+	__u8 padding[7];
+};
+
 #define MTD_ABSENT		0
 #define MTD_RAM			1
 #define MTD_ROM			2
@@ -59,13 +104,13 @@ struct mtd_oob_buf64 {
 #define MTD_NO_ERASE		0x1000	/* No erase necessary */
 #define MTD_POWERUP_LOCK	0x2000	/* Always locked after reset */
 
-// Some common devices / combinations of capabilities
+/* Some common devices / combinations of capabilities */
 #define MTD_CAP_ROM		0
 #define MTD_CAP_RAM		(MTD_WRITEABLE | MTD_BIT_WRITEABLE | MTD_NO_ERASE)
 #define MTD_CAP_NORFLASH	(MTD_WRITEABLE | MTD_BIT_WRITEABLE)
 #define MTD_CAP_NANDFLASH	(MTD_WRITEABLE)
 
-/* ECC byte placement */
+/* Obsolete ECC byte placement modes (used with obsolete MEMGETOOBSEL) */
 #define MTD_NANDECC_OFF		0	// Switch off ECC (Not recommended)
 #define MTD_NANDECC_PLACE	1	// Use the given placement in the structure (YAFFS1 legacy mode)
 #define MTD_NANDECC_AUTOPLACE	2	// Use the default placement scheme
@@ -80,21 +125,18 @@ struct mtd_oob_buf64 {
 struct mtd_info_user {
 	__u8 type;
 	__u32 flags;
-	__u32 size;	 // Total size of the MTD
+	__u32 size;	/* Total size of the MTD */
 	__u32 erasesize;
 	__u32 writesize;
-	__u32 oobsize;   // Amount of OOB data per block (e.g. 16)
-	/* The below two fields are obsolete and broken, do not use them
-	 * (TODO: remove at some point) */
-	__u32 ecctype;
-	__u32 eccsize;
+	__u32 oobsize;	/* Amount of OOB data per block (e.g. 16) */
+	__u64 padding;	/* Old obsolete field; do not use */
 };
 
 struct region_info_user {
 	__u32 offset;		/* At which this region starts,
-					 * from the beginning of the MTD */
-	__u32 erasesize;		/* For this region */
-	__u32 numblocks;		/* Number of blocks in this region */
+				 * from the beginning of the MTD */
+	__u32 erasesize;	/* For this region */
+	__u32 numblocks;	/* Number of blocks in this region */
 	__u32 regionindex;
 };
 
@@ -104,29 +146,61 @@ struct otp_info {
 	__u32 locked;
 };
 
+/*
+ * Note, the following ioctl existed in the past and was removed:
+ * #define MEMSETOOBSEL           _IOW('M', 9, struct nand_oobinfo)
+ * Try to avoid adding a new ioctl with the same ioctl number.
+ */
+
+/* Get basic MTD characteristics info (better to use sysfs) */
 #define MEMGETINFO		_IOR('M', 1, struct mtd_info_user)
+/* Erase segment of MTD */
 #define MEMERASE		_IOW('M', 2, struct erase_info_user)
+/* Write out-of-band data from MTD */
 #define MEMWRITEOOB		_IOWR('M', 3, struct mtd_oob_buf)
+/* Read out-of-band data from MTD */
 #define MEMREADOOB		_IOWR('M', 4, struct mtd_oob_buf)
+/* Lock a chip (for MTD that supports it) */
 #define MEMLOCK			_IOW('M', 5, struct erase_info_user)
+/* Unlock a chip (for MTD that supports it) */
 #define MEMUNLOCK		_IOW('M', 6, struct erase_info_user)
+/* Get the number of different erase regions */
 #define MEMGETREGIONCOUNT	_IOR('M', 7, int)
+/* Get information about the erase region for a specific index */
 #define MEMGETREGIONINFO	_IOWR('M', 8, struct region_info_user)
-#define MEMSETOOBSEL		_IOW('M', 9, struct nand_oobinfo)
+/* Get info about OOB modes (e.g., RAW, PLACE, AUTO) - legacy interface */
 #define MEMGETOOBSEL		_IOR('M', 10, struct nand_oobinfo)
+/* Check if an eraseblock is bad */
 #define MEMGETBADBLOCK		_IOW('M', 11, __kernel_loff_t)
+/* Mark an eraseblock as bad */
 #define MEMSETBADBLOCK		_IOW('M', 12, __kernel_loff_t)
+/* Set OTP (One-Time Programmable) mode (factory vs. user) */
 #define OTPSELECT		_IOR('M', 13, int)
+/* Get number of OTP (One-Time Programmable) regions */
 #define OTPGETREGIONCOUNT	_IOW('M', 14, int)
+/* Get all OTP (One-Time Programmable) info about MTD */
 #define OTPGETREGIONINFO	_IOW('M', 15, struct otp_info)
+/* Lock a given range of user data (must be in mode %MTD_FILE_MODE_OTP_USER) */
 #define OTPLOCK			_IOR('M', 16, struct otp_info)
+/* Get ECC layout (deprecated) */
 #define ECCGETLAYOUT		_IOR('M', 17, struct nand_ecclayout_user)
+/* Get statistics about corrected/uncorrected errors */
 #define ECCGETSTATS		_IOR('M', 18, struct mtd_ecc_stats)
+/* Set MTD mode on a per-file-descriptor basis (see "MTD file modes") */
 #define MTDFILEMODE		_IO('M', 19)
+/* Erase segment of MTD (supports 64-bit address) */
 #define MEMERASE64		_IOW('M', 20, struct erase_info_user64)
+/* Write data to OOB (64-bit version) */
 #define MEMWRITEOOB64		_IOWR('M', 21, struct mtd_oob_buf64)
+/* Read data from OOB (64-bit version) */
 #define MEMREADOOB64		_IOWR('M', 22, struct mtd_oob_buf64)
+/* Check if chip is locked (for MTD that supports it) */
 #define MEMISLOCKED		_IOR('M', 23, struct erase_info_user)
+/*
+ * Most generic write interface; can write in-band and/or out-of-band in various
+ * modes (see "struct mtd_write_req")
+ */
+#define MEMWRITE		_IOWR('M', 24, struct mtd_write_req)
 
 /*
  * Obsolete legacy interface. Keep it in order not to break userspace
@@ -177,13 +251,27 @@ struct mtd_ecc_stats {
 };
 
 /*
- * Read/write file modes for access to MTD
+ * MTD file modes - for read/write access to MTD
+ *
+ * @MTD_FILE_MODE_NORMAL:	OTP disabled, ECC enabled
+ * @MTD_FILE_MODE_OTP_FACTORY:	OTP enabled in factory mode
+ * @MTD_FILE_MODE_OTP_USER:	OTP enabled in user mode
+ * @MTD_FILE_MODE_RAW:		OTP disabled, ECC disabled
+ *
+ * These modes can be set via ioctl(MTDFILEMODE). The mode mode will be retained
+ * separately for each open file descriptor.
+ *
+ * Note: %MTD_FILE_MODE_RAW provides the same functionality as %MTD_OPS_RAW -
+ * raw access to the flash, without error correction or autoplacement schemes.
+ * Wherever possible, the MTD_OPS_* mode will override the MTD_FILE_MODE_* mode
+ * (e.g., when using ioctl(MEMWRITE)), but in some cases, the MTD_FILE_MODE is
+ * used out of necessity (e.g., `write()', ioctl(MEMWRITEOOB64)).
  */
 enum mtd_file_modes {
-	MTD_MODE_NORMAL = MTD_OTP_OFF,
-	MTD_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
-	MTD_MODE_OTP_USER = MTD_OTP_USER,
-	MTD_MODE_RAW,
+	MTD_FILE_MODE_NORMAL = MTD_OTP_OFF,
+	MTD_FILE_MODE_OTP_FACTORY = MTD_OTP_FACTORY,
+	MTD_FILE_MODE_OTP_USER = MTD_OTP_USER,
+	MTD_FILE_MODE_RAW,
 };
 
 #endif /* __MTD_ABI_H__ */