Merge branch 'master' of git://git.denx.de/u-boot-nand-flash

9 files changed, 129 insertions, 63 deletions

diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index f791372de15..40b6333ebf4 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -93,13 +93,13 @@
 DECLARE_GLOBAL_DATA_PTR;
 
 /* special size referring to all the remaining space in a partition */
-#define SIZE_REMAINING		0xFFFFFFFF
+#define SIZE_REMAINING		(~0llu)
 
 /* special offset value, it is used when not provided by user
  *
  * this value is used temporarily during parsing, later such offests
  * are recalculated */
-#define OFFSET_NOT_SPECIFIED	0xFFFFFFFF
+#define OFFSET_NOT_SPECIFIED	(~0llu)
 
 /* minimum partition size */
 #define MIN_PART_SIZE		4096
@@ -160,9 +160,9 @@ static int device_del(struct mtd_device *dev);
  * @param retptr output pointer to next char after parse completes (output)
  * @return resulting unsigned int
  */
-static unsigned long memsize_parse (const char *const ptr, const char **retptr)
+static u64 memsize_parse (const char *const ptr, const char **retptr)
 {
-	unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
+	u64 ret = simple_strtoull(ptr, (char **)retptr, 0);
 
 	switch (**retptr) {
 		case 'G':
@@ -193,20 +193,20 @@ static unsigned long memsize_parse (const char *const ptr, const char **retptr)
  * @param buf output buffer
  * @param size size to be converted to string
  */
-static void memsize_format(char *buf, u32 size)
+static void memsize_format(char *buf, u64 size)
 {
 #define SIZE_GB ((u32)1024*1024*1024)
 #define SIZE_MB ((u32)1024*1024)
 #define SIZE_KB ((u32)1024)
 
 	if ((size % SIZE_GB) == 0)
-		sprintf(buf, "%ug", size/SIZE_GB);
+		sprintf(buf, "%llug", size/SIZE_GB);
 	else if ((size % SIZE_MB) == 0)
-		sprintf(buf, "%um", size/SIZE_MB);
+		sprintf(buf, "%llum", size/SIZE_MB);
 	else if (size % SIZE_KB == 0)
-		sprintf(buf, "%uk", size/SIZE_KB);
+		sprintf(buf, "%lluk", size/SIZE_KB);
 	else
-		sprintf(buf, "%u", size);
+		sprintf(buf, "%llu", size);
 }
 
 /**
@@ -310,6 +310,7 @@ static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
 	struct mtd_info *mtd = NULL;
 	int i, j;
 	ulong start;
+	u64 offset, size;
 
 	if (get_mtd_info(id->type, id->num, &mtd))
 		return 1;
@@ -321,14 +322,16 @@ static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
 		 * Only one eraseregion (NAND, OneNAND or uniform NOR),
 		 * checking for alignment is easy here
 		 */
-		if ((unsigned long)part->offset % mtd->erasesize) {
+		offset = part->offset;
+		if (do_div(offset, mtd->erasesize)) {
 			printf("%s%d: partition (%s) start offset"
 			       "alignment incorrect\n",
 			       MTD_DEV_TYPE(id->type), id->num, part->name);
 			return 1;
 		}
 
-		if (part->size % mtd->erasesize) {
+		size = part->size;
+		if (do_div(size, mtd->erasesize)) {
 			printf("%s%d: partition (%s) size alignment incorrect\n",
 			       MTD_DEV_TYPE(id->type), id->num, part->name);
 			return 1;
@@ -395,7 +398,7 @@ static int part_validate(struct mtdids *id, struct part_info *part)
 		part->size = id->size - part->offset;
 
 	if (part->offset > id->size) {
-		printf("%s: offset %08x beyond flash size %08x\n",
+		printf("%s: offset %08llx beyond flash size %08llx\n",
 				id->mtd_id, part->offset, id->size);
 		return 1;
 	}
@@ -578,8 +581,8 @@ static int part_add(struct mtd_device *dev, struct part_info *part)
 static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
 {
 	struct part_info *part;
-	unsigned long size;
-	unsigned long offset;
+	u64 size;
+	u64 offset;
 	const char *name;
 	int name_len;
 	unsigned int mask_flags;
@@ -598,7 +601,7 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
 	} else {
 		size = memsize_parse(p, &p);
 		if (size < MIN_PART_SIZE) {
-			printf("partition size too small (%lx)\n", size);
+			printf("partition size too small (%llx)\n", size);
 			return 1;
 		}
 	}
@@ -670,14 +673,14 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
 		part->auto_name = 0;
 	} else {
 		/* auto generated name in form of size@offset */
-		sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
+		sprintf(part->name, "0x%08llx@0x%08llx", size, offset);
 		part->auto_name = 1;
 	}
 
 	part->name[name_len - 1] = '\0';
 	INIT_LIST_HEAD(&part->link);
 
-	debug("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
+	debug("+ partition: name %-22s size 0x%08llx offset 0x%08llx mask flags %d\n",
 			part->name, part->size,
 			part->offset, part->mask_flags);
 
@@ -693,7 +696,7 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
  * @param size a pointer to the size of the mtd device (output)
  * @return 0 if device is valid, 1 otherwise
  */
-static int mtd_device_validate(u8 type, u8 num, u32 *size)
+static int mtd_device_validate(u8 type, u8 num, u64 *size)
 {
 	struct mtd_info *mtd = NULL;
 
@@ -826,7 +829,7 @@ static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_
 	LIST_HEAD(tmp_list);
 	struct list_head *entry, *n;
 	u16 num_parts;
-	u32 offset;
+	u64 offset;
 	int err = 1;
 
 	debug("===device_parse===\n");
@@ -1071,7 +1074,8 @@ static int generate_mtdparts(char *buf, u32 buflen)
 	struct part_info *part, *prev_part;
 	char *p = buf;
 	char tmpbuf[32];
-	u32 size, offset, len, part_cnt;
+	u64 size, offset;
+	u32 len, part_cnt;
 	u32 maxlen = buflen - 1;
 
 	debug("--- generate_mtdparts ---\n");
@@ -1270,7 +1274,7 @@ static void print_partition_table(void)
 
 		list_for_each(pentry, &dev->parts) {
 			part = list_entry(pentry, struct part_info, link);
-			printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
+			printf("%2d: %-20s0x%08llx\t0x%08llx\t%d\n",
 					part_num, part->name, part->size,
 					part->offset, part->mask_flags);
 #endif /* defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */
@@ -1297,7 +1301,7 @@ static void list_partitions(void)
 	if (current_mtd_dev) {
 		part = mtd_part_info(current_mtd_dev, current_mtd_partnum);
 		if (part) {
-			printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
+			printf("\nactive partition: %s%d,%d - (%s) 0x%08llx @ 0x%08llx\n",
 					MTD_DEV_TYPE(current_mtd_dev->id->type),
 					current_mtd_dev->id->num, current_mtd_partnum,
 					part->name, part->size, part->offset);
@@ -1397,7 +1401,7 @@ static int delete_partition(const char *id)
 
 	if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
 
-		debug("delete_partition: device = %s%d, partition %d = (%s) 0x%08x@0x%08x\n",
+		debug("delete_partition: device = %s%d, partition %d = (%s) 0x%08llx@0x%08llx\n",
 				MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
 				part->name, part->size, part->offset);
 
@@ -1589,7 +1593,7 @@ static int parse_mtdids(const char *const ids)
 	struct list_head *entry, *n;
 	struct mtdids *id_tmp;
 	u8 type, num;
-	u32 size;
+	u64 size;
 	int ret = 1;
 
 	debug("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
@@ -1663,7 +1667,7 @@ static int parse_mtdids(const char *const ids)
 		id->mtd_id[mtd_id_len - 1] = '\0';
 		INIT_LIST_HEAD(&id->link);
 
-		debug("+ id %s%d\t%16d bytes\t%s\n",
+		debug("+ id %s%d\t%16lld bytes\t%s\n",
 				MTD_DEV_TYPE(id->type), id->num,
 				id->size, id->mtd_id);
 
diff --git a/common/cmd_ubi.c b/common/cmd_ubi.c
index 5ba4feb485b..122ba7e171c 100644
--- a/common/cmd_ubi.c
+++ b/common/cmd_ubi.c
@@ -167,7 +167,7 @@ bad:
 	return err;
 }
 
-static int ubi_create_vol(char *volume, int size, int dynamic)
+static int ubi_create_vol(char *volume, int64_t size, int dynamic)
 {
 	struct ubi_mkvol_req req;
 	int err;
@@ -191,7 +191,7 @@ static int ubi_create_vol(char *volume, int size, int dynamic)
 		printf("verify_mkvol_req failed %d\n", err);
 		return err;
 	}
-	printf("Creating %s volume %s of size %d\n",
+	printf("Creating %s volume %s of size %lld\n",
 		dynamic ? "dynamic" : "static", volume, size);
 	/* Call real ubi create volume */
 	return ubi_create_volume(ubi, &req);
@@ -266,28 +266,15 @@ out_err:
 	return err;
 }
 
-int ubi_volume_write(char *volume, void *buf, size_t size)
+int ubi_volume_continue_write(char *volume, void *buf, size_t size)
 {
 	int err = 1;
-	int rsvd_bytes = 0;
 	struct ubi_volume *vol;
 
 	vol = ubi_find_volume(volume);
 	if (vol == NULL)
 		return ENODEV;
 
-	rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
-	if (size < 0 || size > rsvd_bytes) {
-		printf("size > volume size! Aborting!\n");
-		return EINVAL;
-	}
-
-	err = ubi_start_update(ubi, vol, size);
-	if (err < 0) {
-		printf("Cannot start volume update\n");
-		return -err;
-	}
-
 	err = ubi_more_update_data(ubi, vol, buf, size);
 	if (err < 0) {
 		printf("Couldnt or partially wrote data\n");
@@ -314,6 +301,37 @@ int ubi_volume_write(char *volume, void *buf, size_t size)
 	return 0;
 }
 
+int ubi_volume_begin_write(char *volume, void *buf, size_t size,
+	size_t full_size)
+{
+	int err = 1;
+	int rsvd_bytes = 0;
+	struct ubi_volume *vol;
+
+	vol = ubi_find_volume(volume);
+	if (vol == NULL)
+		return ENODEV;
+
+	rsvd_bytes = vol->reserved_pebs * (ubi->leb_size - vol->data_pad);
+	if (size < 0 || size > rsvd_bytes) {
+		printf("size > volume size! Aborting!\n");
+		return EINVAL;
+	}
+
+	err = ubi_start_update(ubi, vol, full_size);
+	if (err < 0) {
+		printf("Cannot start volume update\n");
+		return -err;
+	}
+
+	return ubi_volume_continue_write(volume, buf, size);
+}
+
+int ubi_volume_write(char *volume, void *buf, size_t size)
+{
+	return ubi_volume_begin_write(volume, buf, size, size);
+}
+
 int ubi_volume_read(char *volume, char *buf, size_t size)
 {
 	int err, lnum, off, len, tbuf_size;
@@ -498,7 +516,7 @@ int ubi_part(char *part_name, const char *vid_header_offset)
 
 static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
-	size_t size = 0;
+	int64_t size = 0;
 	ulong addr = 0;
 
 	if (argc < 2)
@@ -558,13 +576,13 @@ static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		}
 		/* E.g., create volume size */
 		if (argc == 4) {
-			size = simple_strtoul(argv[3], NULL, 16);
+			size = simple_strtoull(argv[3], NULL, 16);
 			argc--;
 		}
 		/* Use maximum available size */
 		if (!size) {
-			size = ubi->avail_pebs * ubi->leb_size;
-			printf("No size specified -> Using max size (%u)\n", size);
+			size = (int64_t)ubi->avail_pebs * ubi->leb_size;
+			printf("No size specified -> Using max size (%lld)\n", size);
 		}
 		/* E.g., create volume */
 		if (argc == 3)
@@ -588,9 +606,22 @@ static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		addr = simple_strtoul(argv[2], NULL, 16);
 		size = simple_strtoul(argv[4], NULL, 16);
 
-		ret = ubi_volume_write(argv[3], (void *)addr, size);
+		if (strlen(argv[1]) == 10 &&
+		    strncmp(argv[1] + 5, ".part", 5) == 0) {
+			if (argc < 6) {
+				ret = ubi_volume_continue_write(argv[3],
+						(void *)addr, size);
+			} else {
+				size_t full_size;
+				full_size = simple_strtoul(argv[5], NULL, 16);
+				ret = ubi_volume_begin_write(argv[3],
+						(void *)addr, size, full_size);
+			}
+		} else {
+			ret = ubi_volume_write(argv[3], (void *)addr, size);
+		}
 		if (!ret) {
-			printf("%d bytes written to volume %s\n", size,
+			printf("%lld bytes written to volume %s\n", size,
 			       argv[3]);
 		}
 
@@ -613,7 +644,7 @@ static int do_ubi(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 		}
 
 		if (argc == 3) {
-			printf("Read %d bytes from volume %s to %lx\n", size,
+			printf("Read %lld bytes from volume %s to %lx\n", size,
 			       argv[3], addr);
 
 			return ubi_volume_read(argv[3], (char *)addr, size);
@@ -636,6 +667,8 @@ U_BOOT_CMD(
 		" - create volume name with size\n"
 	"ubi write[vol] address volume size"
 		" - Write volume from address with size\n"
+	"ubi write.part address volume size [fullsize]\n"
+		" - Write part of a volume from address\n"
 	"ubi read[vol] address volume [size]"
 		" - Read volume to address with size\n"
 	"ubi remove[vol] volume"
diff --git a/doc/README.ubi b/doc/README.ubi
index 3cf4ef232d3..d82c75c8484 100644
--- a/doc/README.ubi
+++ b/doc/README.ubi
@@ -14,6 +14,8 @@ ubi part [part] [offset]
 ubi info [l[ayout]] - Display volume and ubi layout information
 ubi create[vol] volume [size] [type] - create volume name with size
 ubi write[vol] address volume size - Write volume from address with size
+ubi write.part address volume size [fullsize]
+ - Write part of a volume from address
 ubi read[vol] address volume [size] - Read volume to address with size
 ubi remove[vol] volume - Remove volume
 [Legends]
@@ -77,6 +79,7 @@ ubi createvol	Create UBI volume on UBI device
 ubi removevol	Remove UBI volume from UBI device
 ubi read	Read data from UBI volume to memory
 ubi write	Write data from memory to UBI volume
+ubi write.part	Write data from memory to UBI volume, in parts
 
 
 Here a few examples on the usage:
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 49c08145a7f..deda5f2449d 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -217,11 +217,23 @@ int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
 int mtd_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
 	     u_char *buf)
 {
+	int ret_code;
 	if (from < 0 || from > mtd->size || len > mtd->size - from)
 		return -EINVAL;
 	if (!len)
 		return 0;
-	return mtd->_read(mtd, from, len, retlen, buf);
+
+	/*
+	 * In the absence of an error, drivers return a non-negative integer
+	 * representing the maximum number of bitflips that were corrected on
+	 * any one ecc region (if applicable; zero otherwise).
+	 */
+	ret_code = mtd->_read(mtd, from, len, retlen, buf);
+	if (unlikely(ret_code < 0))
+		return ret_code;
+	if (mtd->ecc_strength == 0)
+		return 0;	/* device lacks ecc */
+	return ret_code >= mtd->bitflip_threshold ? -EUCLEAN : 0;
 }
 
 int mtd_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 9dfe7bbc9a9..146ce11eb1b 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -53,12 +53,12 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
 
 	stats = part->master->ecc_stats;
 	res = mtd_read(part->master, from + part->offset, len, retlen, buf);
-	if (unlikely(res)) {
-		if (mtd_is_bitflip(res))
-			mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
-		if (mtd_is_eccerr(res))
-			mtd->ecc_stats.failed += part->master->ecc_stats.failed - stats.failed;
-	}
+	if (unlikely(mtd_is_eccerr(res)))
+		mtd->ecc_stats.failed +=
+			part->master->ecc_stats.failed - stats.failed;
+	else
+		mtd->ecc_stats.corrected +=
+			part->master->ecc_stats.corrected - stats.corrected;
 	return res;
 }
 
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 9e05cef4179..d4d586c9426 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -1238,6 +1238,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 		mtd->oobavail : mtd->oobsize;
 
 	uint8_t *bufpoi, *oob, *buf;
+	unsigned int max_bitflips = 0;
 
 	stats = mtd->ecc_stats;
 
@@ -1265,7 +1266,10 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 
 			chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
 
-			/* Now read the page into the buffer */
+			/*
+			 * Now read the page into the buffer.  Absent an error,
+			 * the read methods return max bitflips per ecc step.
+			 */
 			if (unlikely(ops->mode == MTD_OPS_RAW))
 				ret = chip->ecc.read_page_raw(mtd, chip, bufpoi,
 							      oob_required,
@@ -1284,15 +1288,19 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 				break;
 			}
 
+			max_bitflips = max_t(unsigned int, max_bitflips, ret);
+
 			/* Transfer not aligned data */
 			if (!aligned) {
 				if (!NAND_HAS_SUBPAGE_READ(chip) && !oob &&
 				    !(mtd->ecc_stats.failed - stats.failed) &&
-				    (ops->mode != MTD_OPS_RAW))
+				    (ops->mode != MTD_OPS_RAW)) {
 					chip->pagebuf = realpage;
-				else
+					chip->pagebuf_bitflips = ret;
+				} else {
 					/* Invalidate page cache */
 					chip->pagebuf = -1;
+				}
 				memcpy(buf, chip->buffers->databuf + col, bytes);
 			}
 
@@ -1310,6 +1318,8 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 		} else {
 			memcpy(buf, chip->buffers->databuf + col, bytes);
 			buf += bytes;
+			max_bitflips = max_t(unsigned int, max_bitflips,
+					     chip->pagebuf_bitflips);
 		}
 
 		readlen -= bytes;
@@ -1341,7 +1351,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
 	if (mtd->ecc_stats.failed - stats.failed)
 		return -EBADMSG;
 
-	return  mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
+	return max_bitflips;
 }
 
 /**
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index ddfe7e7c756..067f8ef184b 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -969,7 +969,8 @@ static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
 	if (mtd->ecc_stats.failed - stats.failed)
 		return -EBADMSG;
 
-	return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
+	/* return max bitflips per ecc step; ONENANDs correct 1 bit only */
+	return mtd->ecc_stats.corrected != stats.corrected ? 1 : 0;
 }
 
 /**
diff --git a/include/jffs2/load_kernel.h b/include/jffs2/load_kernel.h
index e1943e507c0..dd0d23fa52a 100644
--- a/include/jffs2/load_kernel.h
+++ b/include/jffs2/load_kernel.h
@@ -32,8 +32,8 @@ struct part_info {
 	struct list_head link;
 	char *name;			/* partition name */
 	u8 auto_name;			/* set to 1 for generated name */
-	u32 size;			/* total size of the partition */
-	u32 offset;			/* offset within device */
+	u64 size;			/* total size of the partition */
+	u64 offset;			/* offset within device */
 	void *jffs2_priv;		/* used internaly by jffs2 */
 	u32 mask_flags;			/* kernel MTD mask flags */
 	u32 sector_size;		/* size of sector */
@@ -44,7 +44,7 @@ struct mtdids {
 	struct list_head link;
 	u8 type;			/* device type */
 	u8 num;				/* device number */
-	u32 size;			/* device size */
+	u64 size;			/* device size */
 	char *mtd_id;			/* linux kernel device id */
 };
 
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 2055584374d..05465655935 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -464,6 +464,8 @@ struct nand_buffers {
  * @pagemask:		[INTERN] page number mask = number of (pages / chip) - 1
  * @pagebuf:		[INTERN] holds the pagenumber which is currently in
  *			data_buf.
+ * @pagebuf_bitflips:	[INTERN] holds the bitflip count for the page which is
+ *			currently in data_buf.
  * @subpagesize:	[INTERN] holds the subpagesize
  * @onfi_version:	[INTERN] holds the chip ONFI version (BCD encoded),
  *			non 0 if ONFI supported.
@@ -531,6 +533,7 @@ struct nand_chip {
 	uint64_t chipsize;
 	int pagemask;
 	int pagebuf;
+	unsigned int pagebuf_bitflips;
 	int subpagesize;
 	uint8_t cellinfo;
 	int badblockpos;