diff options
| -rw-r--r-- | README | 32 | ||||
| -rw-r--r-- | common/cmd_mtdparts.c | 261 | ||||
| -rw-r--r-- | common/cmd_nand.c | 339 | ||||
| -rw-r--r-- | drivers/mtd/mtdcore.c | 44 | ||||
| -rw-r--r-- | drivers/mtd/mtdpart.c | 16 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 245 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_bbt.c | 19 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_ecc.c | 17 | ||||
| -rw-r--r-- | drivers/mtd/nand/nand_util.c | 159 | ||||
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 1 | ||||
| -rw-r--r-- | include/linux/mtd/mtd.h | 8 | ||||
| -rw-r--r-- | include/linux/mtd/onenand.h | 1 | ||||
| -rw-r--r-- | include/nand.h | 7 |
13 files changed, 606 insertions, 543 deletions
@@ -2534,18 +2534,32 @@ to save the current settings. - CONFIG_ENV_SIZE: These two #defines specify the offset and size of the environment - area within the first NAND device. + area within the first NAND device. CONFIG_ENV_OFFSET must be + aligned to an erase block boundary. - - CONFIG_ENV_OFFSET_REDUND + - CONFIG_ENV_OFFSET_REDUND (optional): This setting describes a second storage area of CONFIG_ENV_SIZE - size used to hold a redundant copy of the environment data, - so that there is a valid backup copy in case there is a - power failure during a "saveenv" operation. - - Note: CONFIG_ENV_OFFSET and CONFIG_ENV_OFFSET_REDUND must be aligned - to a block boundary, and CONFIG_ENV_SIZE must be a multiple of - the NAND devices block size. + size used to hold a redundant copy of the environment data, so + that there is a valid backup copy in case there is a power failure + during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be + aligned to an erase block boundary. + + - CONFIG_ENV_RANGE (optional): + + Specifies the length of the region in which the environment + can be written. This should be a multiple of the NAND device's + block size. Specifying a range with more erase blocks than + are needed to hold CONFIG_ENV_SIZE allows bad blocks within + the range to be avoided. + + - CONFIG_ENV_OFFSET_OOB (optional): + + Enables support for dynamically retrieving the offset of the + environment from block zero's out-of-band data. The + "nand env.oob" command can be used to record this offset. + Currently, CONFIG_ENV_OFFSET_REDUND is not supported when + using CONFIG_ENV_OFFSET_OOB. - CONFIG_NAND_ENV_DST diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c index ceec5a9..5481c88 100644 --- a/common/cmd_mtdparts.c +++ b/common/cmd_mtdparts.c @@ -15,6 +15,9 @@ * Parsing routines are based on driver/mtd/cmdline.c from the linux 2.4 * kernel tree. * + * (C) Copyright 2008 + * Harald Welte, OpenMoko, Inc., Harald Welte <laforge@openmoko.org> + * * $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $ * Copyright 2002 SYSGO Real-Time Solutions GmbH * @@ -286,6 +289,29 @@ static void current_save(void) index_partitions(); } + +/** + * Produce a mtd_info given a type and num. + * + * @param type mtd type + * @param num mtd number + * @param mtd a pointer to an mtd_info instance (output) + * @return 0 if device is valid, 1 otherwise + */ +static int get_mtd_info(u8 type, u8 num, struct mtd_info **mtd) +{ + char mtd_dev[16]; + + sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(type), num); + *mtd = get_mtd_device_nm(mtd_dev); + if (IS_ERR(*mtd)) { + printf("Device %s not found!\n", mtd_dev); + return 1; + } + + return 0; +} + /** * Performs sanity check for supplied flash partition. * Table of existing MTD flash devices is searched and partition device @@ -297,17 +323,12 @@ static void current_save(void) */ static int part_validate_eraseblock(struct mtdids *id, struct part_info *part) { - struct mtd_info *mtd; - char mtd_dev[16]; + struct mtd_info *mtd = NULL; int i, j; ulong start; - sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(id->type), id->num); - mtd = get_mtd_device_nm(mtd_dev); - if (IS_ERR(mtd)) { - printf("Partition %s not found on device %s!\n", part->name, mtd_dev); + if (get_mtd_info(id->type, id->num, &mtd)) return 1; - } part->sector_size = mtd->erasesize; @@ -684,20 +705,17 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i /** * Check device number to be within valid range for given device type. * - * @param dev device to validate + * @param type mtd type + * @param num mtd number + * @param size a pointer to the size of the mtd device (output) * @return 0 if device is valid, 1 otherwise */ int mtd_device_validate(u8 type, u8 num, u32 *size) { - struct mtd_info *mtd; - char mtd_dev[16]; + struct mtd_info *mtd = NULL; - sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(type), num); - mtd = get_mtd_device_nm(mtd_dev); - if (IS_ERR(mtd)) { - printf("Device %s not found!\n", mtd_dev); + if (get_mtd_info(type, num, &mtd)) return 1; - } *size = mtd->size; @@ -1200,38 +1218,93 @@ static int generate_mtdparts_save(char *buf, u32 buflen) return ret; } +#if defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) /** - * Format and print out a partition list for each device from global device - * list. + * Get the net size (w/o bad blocks) of the given partition. + * + * @param mtd the mtd info + * @param part the partition + * @return the calculated net size of this partition */ -static void list_partitions(void) +static uint64_t net_part_size(struct mtd_info *mtd, struct part_info *part) +{ + uint64_t i, net_size = 0; + + if (!mtd->block_isbad) + return part->size; + + for (i = 0; i < part->size; i += mtd->erasesize) { + if (!mtd->block_isbad(mtd, part->offset + i)) + net_size += mtd->erasesize; + } + + return net_size; +} +#endif + +static void print_partition_table(void) { struct list_head *dentry, *pentry; struct part_info *part; struct mtd_device *dev; int part_num; - debug("\n---list_partitions---\n"); list_for_each(dentry, &devices) { dev = list_entry(dentry, struct mtd_device, link); + /* list partitions for given device */ + part_num = 0; +#if defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) + struct mtd_info *mtd; + + if (get_mtd_info(dev->id->type, dev->id->num, &mtd)) + return; + + printf("\ndevice %s%d <%s>, # parts = %d\n", + MTD_DEV_TYPE(dev->id->type), dev->id->num, + dev->id->mtd_id, dev->num_parts); + printf(" #: name\t\tsize\t\tnet size\toffset\t\tmask_flags\n"); + + list_for_each(pentry, &dev->parts) { + u32 net_size; + char *size_note; + + part = list_entry(pentry, struct part_info, link); + net_size = net_part_size(mtd, part); + size_note = part->size == net_size ? " " : " (!)"; + printf("%2d: %-20s0x%08x\t0x%08x%s\t0x%08x\t%d\n", + part_num, part->name, part->size, + net_size, size_note, part->offset, + part->mask_flags); +#else /* !defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */ printf("\ndevice %s%d <%s>, # parts = %d\n", MTD_DEV_TYPE(dev->id->type), dev->id->num, dev->id->mtd_id, dev->num_parts); printf(" #: name\t\tsize\t\toffset\t\tmask_flags\n"); - /* list partitions for given device */ - part_num = 0; list_for_each(pentry, &dev->parts) { part = list_entry(pentry, struct part_info, link); printf("%2d: %-20s0x%08x\t0x%08x\t%d\n", part_num, part->name, part->size, part->offset, part->mask_flags); - +#endif /* defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */ part_num++; } } + if (list_empty(&devices)) printf("no partitions defined\n"); +} + +/** + * Format and print out a partition list for each device from global device + * list. + */ +static void list_partitions(void) +{ + struct part_info *part; + + debug("\n---list_partitions---\n"); + print_partition_table(); /* current_mtd_dev is not NULL only when we have non empty device list */ if (current_mtd_dev) { @@ -1355,6 +1428,101 @@ static int delete_partition(const char *id) return 1; } +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) +/** + * Increase the size of the given partition so that it's net size is at least + * as large as the size member and such that the next partition would start on a + * good block if it were adjacent to this partition. + * + * @param mtd the mtd device + * @param part the partition + * @param next_offset pointer to the offset of the next partition after this + * partition's size has been modified (output) + */ +static void spread_partition(struct mtd_info *mtd, struct part_info *part, + uint64_t *next_offset) +{ + uint64_t net_size, padding_size = 0; + int truncated; + + mtd_get_len_incl_bad(mtd, part->offset, part->size, &net_size, + &truncated); + + /* + * Absorb bad blocks immediately following this + * partition also into the partition, such that + * the next partition starts with a good block. + */ + if (!truncated) { + mtd_get_len_incl_bad(mtd, part->offset + net_size, + mtd->erasesize, &padding_size, &truncated); + if (truncated) + padding_size = 0; + else + padding_size -= mtd->erasesize; + } + + if (truncated) { + printf("truncated partition %s to %lld bytes\n", part->name, + (uint64_t) net_size + padding_size); + } + + part->size = net_size + padding_size; + *next_offset = part->offset + part->size; +} + +/** + * Adjust all of the partition sizes, such that all partitions are at least + * as big as their mtdparts environment variable sizes and they each start + * on a good block. + * + * @return 0 on success, 1 otherwise + */ +static int spread_partitions(void) +{ + struct list_head *dentry, *pentry; + struct mtd_device *dev; + struct part_info *part; + struct mtd_info *mtd; + int part_num; + uint64_t cur_offs; + + list_for_each(dentry, &devices) { + dev = list_entry(dentry, struct mtd_device, link); + + if (get_mtd_info(dev->id->type, dev->id->num, &mtd)) + return 1; + + part_num = 0; + cur_offs = 0; + list_for_each(pentry, &dev->parts) { + part = list_entry(pentry, struct part_info, link); + + debug("spread_partitions: device = %s%d, partition %d =" + " (%s) 0x%08x@0x%08x\n", + MTD_DEV_TYPE(dev->id->type), dev->id->num, + part_num, part->name, part->size, + part->offset); + + if (cur_offs > part->offset) + part->offset = cur_offs; + + spread_partition(mtd, part, &cur_offs); + + part_num++; + } + } + + index_partitions(); + + if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) { + printf("generated mtdparts too long, reseting to null\n"); + return 1; + } + return 0; +} +#endif /* CONFIG_CMD_MTDPARTS_SPREAD */ + /** * Accept character string describing mtd partitions and call device_parse() * for each entry. Add created devices to the global devices list. @@ -1782,9 +1950,13 @@ int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) } /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */ - if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) { + if (((argc == 5) || (argc == 6)) && (strncmp(argv[1], "add", 3) == 0)) { #define PART_ADD_DESC_MAXLEN 64 char tmpbuf[PART_ADD_DESC_MAXLEN]; +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) + struct mtd_info *mtd; + uint64_t next_offset; +#endif u8 type, num, len; struct mtd_device *dev; struct mtd_device *dev_tmp; @@ -1819,15 +1991,25 @@ int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) debug("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type), dev->id->num, dev->id->mtd_id); - if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) { + p = list_entry(dev->parts.next, struct part_info, link); + +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) + if (get_mtd_info(dev->id->type, dev->id->num, &mtd)) + return 1; + + if (!strcmp(&argv[1][3], ".spread")) { + spread_partition(mtd, p, &next_offset); + debug("increased %s to %d bytes\n", p->name, p->size); + } +#endif + + dev_tmp = device_find(dev->id->type, dev->id->num); + if (dev_tmp == NULL) { device_add(dev); - } else { + } else if (part_add(dev_tmp, p) != 0) { /* merge new partition with existing ones*/ - p = list_entry(dev->parts.next, struct part_info, link); - if (part_add(dev_tmp, p) != 0) { - device_del(dev); - return 1; - } + device_del(dev); + return 1; } if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) { @@ -1845,6 +2027,11 @@ int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return delete_partition(argv[2]); } +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) + if ((argc == 2) && (strcmp(argv[1], "spread") == 0)) + return spread_partitions(); +#endif /* CONFIG_CMD_MTDPARTS_SPREAD */ + return cmd_usage(cmdtp); } @@ -1867,8 +2054,20 @@ U_BOOT_CMD( " - delete partition (e.g. part-id = nand0,1)\n" "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n" " - add partition\n" +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) + "mtdparts add.spread <mtd-dev> <size>[@<offset>] [<name>] [ro]\n" + " - add partition, padding size by skipping bad blocks\n" +#endif "mtdparts default\n" - " - reset partition table to defaults\n\n" + " - reset partition table to defaults\n" +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) + "mtdparts spread\n" + " - adjust the sizes of the partitions so they are\n" + " at least as big as the mtdparts variable specifies\n" + " and they each start on a good block\n\n" +#else + "\n" +#endif /* CONFIG_CMD_MTDPARTS_SPREAD */ "-----\n\n" "this command uses three environment variables:\n\n" "'partition' - keeps current partition identifier\n\n" diff --git a/common/cmd_nand.c b/common/cmd_nand.c index 3f1d077..8a81237 100644 --- a/common/cmd_nand.c +++ b/common/cmd_nand.c @@ -10,6 +10,13 @@ * (C) Copyright 2006-2007 OpenMoko, Inc. * Added 16-bit nand support * (C) 2004 Texas Instruments + * + * Copyright 2010 Freescale Semiconductor + * The portions of this file whose copyright is held by Freescale and which + * are not considered a derived work of GPL v2-only code may be distributed + * and/or modified 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. */ #include <common.h> @@ -30,10 +37,16 @@ int find_dev_and_part(const char *id, struct mtd_device **dev, u8 *part_num, struct part_info **part); #endif -static int nand_dump(nand_info_t *nand, ulong off, int only_oob) +static int nand_dump(nand_info_t *nand, ulong off, int only_oob, int repeat) { int i; u_char *datbuf, *oobbuf, *p; + static loff_t last; + + if (repeat) + off = last + nand->writesize; + + last = off; datbuf = malloc(nand->writesize + nand->oobsize); oobbuf = malloc(nand->oobsize); @@ -85,74 +98,132 @@ static int nand_dump(nand_info_t *nand, ulong off, int only_oob) /* ------------------------------------------------------------------------- */ -static inline int str2long(char *p, ulong *num) +static int set_dev(int dev) +{ + if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || + !nand_info[dev].name) { + puts("No such device\n"); + return -1; + } + + if (nand_curr_device == dev) + return 0; + + printf("Device %d: %s", dev, nand_info[dev].name); + puts("... is now current device\n"); + nand_curr_device = dev; + +#ifdef CONFIG_SYS_NAND_SELECT_DEVICE + board_nand_select_device(nand_info[dev].priv, dev); +#endif + + return 0; +} + +static inline int str2off(const char *p, loff_t *num) +{ + char *endptr; + + *num = simple_strtoull(p, &endptr, 16); + return *p != '\0' && *endptr == '\0'; +} + +static inline int str2long(const char *p, ulong *num) { char *endptr; *num = simple_strtoul(p, &endptr, 16); - return (*p != '\0' && *endptr == '\0') ? 1 : 0; + return *p != '\0' && *endptr == '\0'; } -static int -arg_off_size(int argc, char * const argv[], nand_info_t *nand, ulong *off, size_t *size) +static int get_part(const char *partname, int *idx, loff_t *off, loff_t *size) { - int idx = nand_curr_device; -#if defined(CONFIG_CMD_MTDPARTS) +#ifdef CONFIG_CMD_MTDPARTS struct mtd_device *dev; struct part_info *part; u8 pnum; + int ret; - if (argc >= 1 && !(str2long(argv[0], off))) { - if ((mtdparts_init() == 0) && - (find_dev_and_part(argv[0], &dev, &pnum, &part) == 0)) { - if (dev->id->type != MTD_DEV_TYPE_NAND) { - puts("not a NAND device\n"); - return -1; - } - *off = part->offset; - if (argc >= 2) { - if (!(str2long(argv[1], (ulong *)size))) { - printf("'%s' is not a number\n", argv[1]); - return -1; - } - if (*size > part->size) - *size = part->size; - } else { - *size = part->size; - } - idx = dev->id->num; - *nand = nand_info[idx]; - goto out; - } + ret = mtdparts_init(); + if (ret) + return ret; + + ret = find_dev_and_part(partname, &dev, &pnum, &part); + if (ret) + return ret; + + if (dev->id->type != MTD_DEV_TYPE_NAND) { + puts("not a NAND device\n"); + return -1; } + + *off = part->offset; + *size = part->size; + *idx = dev->id->num; + + ret = set_dev(*idx); + if (ret) + return ret; + + return 0; +#else + puts("offset is not a number\n"); + return -1; #endif +} - if (argc >= 1) { - if (!(str2long(argv[0], off))) { - printf("'%s' is not a number\n", argv[0]); - return -1; - } - } else { +static int arg_off(const char *arg, int *idx, loff_t *off, loff_t *maxsize) +{ + if (!str2off(arg, off)) + return get_part(arg, idx, off, maxsize); + + if (*off >= nand_info[*idx].size) { + puts("Offset exceeds device limit\n"); + return -1; + } + + *maxsize = nand_info[*idx].size - *off; + return 0; +} + +static int arg_off_size(int argc, char *const argv[], int *idx, + loff_t *off, loff_t *size) +{ + int ret; + loff_t maxsize; + + if (argc == 0) { *off = 0; + *size = nand_info[*idx].size; + goto print; } - if (argc >= 2) { - if (!(str2long(argv[1], (ulong *)size))) { - printf("'%s' is not a number\n", argv[1]); - return -1; - } - } else { - *size = nand->size - *off; + ret = arg_off(argv[0], idx, off, &maxsize); + if (ret) + return ret; + + if (argc == 1) { + *size = maxsize; + goto print; } -#if defined(CONFIG_CMD_MTDPARTS) -out: -#endif - printf("device %d ", idx); - if (*size == nand->size) + if (!str2off(argv[1], size)) { + printf("'%s' is not a number\n", argv[1]); + return -1; + } + + if (*size > maxsize) { + puts("Size exceeds partition or device limit\n"); + return -1; + } + +print: + printf("device %d ", *idx); + if (*size == nand_info[*idx].size) puts("whole chip\n"); else - printf("offset 0x%lx, size 0x%zx\n", *off, *size); + printf("offset 0x%llx, size 0x%llx\n", + (unsigned long long)*off, (unsigned long long)*size); return 0; } @@ -200,14 +271,20 @@ static void do_nand_status(nand_info_t *nand) #ifdef CONFIG_ENV_OFFSET_OOB unsigned long nand_env_oob_offset; -int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand, - int argc, char * const argv[]) +int do_nand_env_oob(cmd_tbl_t *cmdtp, int argc, char *const argv[]) { int ret; uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)]; - + nand_info_t *nand = &nand_info[0]; char *cmd = argv[1]; + if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !nand->name) { + puts("no devices available\n"); + return 1; + } + + set_dev(0); + if (!strcmp(cmd, "get")) { ret = get_nand_env_oob(nand, &nand_env_oob_offset); if (ret) @@ -215,16 +292,21 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand, printf("0x%08lx\n", nand_env_oob_offset); } else if (!strcmp(cmd, "set")) { - ulong addr; - size_t dummy_size; + loff_t addr; + loff_t maxsize; struct mtd_oob_ops ops; + int idx = 0; if (argc < 3) goto usage; - if (arg_off_size(argc - 2, argv + 2, nand, &addr, - &dummy_size) < 0) { - printf("Offset or partition name expected\n"); + if (arg_off(argv[2], &idx, &addr, &maxsize)) { + puts("Offset or partition name expected\n"); + return 1; + } + + if (idx != 0) { + puts("Partition not on first NAND device\n"); return 1; } @@ -264,8 +346,8 @@ int do_nand_env_oob(cmd_tbl_t *cmdtp, nand_info_t *nand, if (addr != nand_env_oob_offset) { printf("Verification of env offset in OOB failed: " - "0x%08lx expected but got 0x%08lx\n", - addr, nand_env_oob_offset); + "0x%08llx expected but got 0x%08lx\n", + (unsigned long long)addr, nand_env_oob_offset); return 1; } } else { @@ -293,9 +375,9 @@ static void nand_print_info(int idx) int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) { - int i, dev, ret = 0; - ulong addr, off; - size_t size; + int i, ret = 0; + ulong addr; + loff_t off, size; char *cmd, *s; nand_info_t *nand; #ifdef CONFIG_SYS_NAND_QUIET @@ -304,6 +386,8 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) int quiet = 0; #endif const char *quiet_str = getenv("quiet"); + int dev = nand_curr_device; + int repeat = flag & CMD_FLAG_REPEAT; /* at least two arguments please */ if (argc < 2) @@ -314,6 +398,10 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) cmd = argv[1]; + /* Only "dump" is repeatable. */ + if (repeat && strcmp(cmd, "dump")) + return 0; + if (strcmp(cmd, "info") == 0) { putc('\n'); @@ -325,68 +413,45 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) } if (strcmp(cmd, "device") == 0) { - if (argc < 3) { putc('\n'); - if ((nand_curr_device < 0) || - (nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE)) + if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE) puts("no devices available\n"); else - nand_print_info(nand_curr_device); + nand_print_info(dev); return 0; } - dev = (int)simple_strtoul(argv[2], NULL, 10); - if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || !nand_info[dev].name) { - puts("No such device\n"); - return 1; - } - printf("Device %d: %s", dev, nand_info[dev].name); - puts("... is now current device\n"); - nand_curr_device = dev; -#ifdef CONFIG_SYS_NAND_SELECT_DEVICE - /* - * Select the chip in the board/cpu specific driver - */ - board_nand_select_device(nand_info[dev].priv, dev); -#endif + dev = (int)simple_strtoul(argv[2], NULL, 10); + set_dev(dev); return 0; } - if (strcmp(cmd, "bad") != 0 && strcmp(cmd, "erase") != 0 && - strncmp(cmd, "dump", 4) != 0 && - strncmp(cmd, "read", 4) != 0 && strncmp(cmd, "write", 5) != 0 && - strcmp(cmd, "scrub") != 0 && strcmp(cmd, "markbad") != 0 && - strcmp(cmd, "biterr") != 0 && - strcmp(cmd, "lock") != 0 && strcmp(cmd, "unlock") != 0 -#ifdef CONFIG_ENV_OFFSET_OOB - && strcmp(cmd, "env.oob") != 0 -#endif - ) - goto usage; - #ifdef CONFIG_ENV_OFFSET_OOB /* this command operates only on the first nand device */ - if (strcmp(cmd, "env.oob") == 0) { - return do_nand_env_oob(cmdtp, &nand_info[0], - argc - 1, argv + 1); - } + if (strcmp(cmd, "env.oob") == 0) + return do_nand_env_oob(cmdtp, argc - 1, argv + 1); #endif - /* the following commands operate on the current device */ - if (nand_curr_device < 0 || nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE || - !nand_info[nand_curr_device].name) { + /* The following commands operate on the current device, unless + * overridden by a partition specifier. Note that if somehow the + * current device is invalid, it will have to be changed to a valid + * one before these commands can run, even if a partition specifier + * for another device is to be used. + */ + if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE || + !nand_info[dev].name) { puts("\nno devices available\n"); return 1; } - nand = &nand_info[nand_curr_device]; + nand = &nand_info[dev]; if (strcmp(cmd, "bad") == 0) { - printf("\nDevice %d bad blocks:\n", nand_curr_device); + printf("\nDevice %d bad blocks:\n", dev); for (off = 0; off < nand->size; off += nand->erasesize) if (nand_block_isbad(nand, off)) - printf(" %08lx\n", off); + printf(" %08llx\n", (unsigned long long)off); return 0; } @@ -395,23 +460,52 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) * 0 1 2 3 4 * nand erase [clean] [off size] */ - if (strcmp(cmd, "erase") == 0 || strcmp(cmd, "scrub") == 0) { + if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) { nand_erase_options_t opts; /* "clean" at index 2 means request to write cleanmarker */ int clean = argc > 2 && !strcmp("clean", argv[2]); int o = clean ? 3 : 2; - int scrub = !strcmp(cmd, "scrub"); + int scrub = !strncmp(cmd, "scrub", 5); + int part = 0; + int chip = 0; + int spread = 0; + int args = 2; + + if (cmd[5] != 0) { + if (!strcmp(&cmd[5], ".spread")) { + spread = 1; + } else if (!strcmp(&cmd[5], ".part")) { + part = 1; + args = 1; + } else if (!strcmp(&cmd[5], ".chip")) { + chip = 1; + args = 0; + } else { + goto usage; + } + } + + /* + * Don't allow missing arguments to cause full chip/partition + * erases -- easy to do accidentally, e.g. with a misspelled + * variable name. + */ + if (argc != o + args) + goto usage; - printf("\nNAND %s: ", scrub ? "scrub" : "erase"); + printf("\nNAND %s: ", cmd); /* skip first two or three arguments, look for offset and size */ - if (arg_off_size(argc - o, argv + o, nand, &off, &size) != 0) + if (arg_off_size(argc - o, argv + o, &dev, &off, &size) != 0) return 1; + nand = &nand_info[dev]; + memset(&opts, 0, sizeof(opts)); opts.offset = off; opts.length = size; opts.jffs2 = clean; opts.quiet = quiet; + opts.spread = spread; if (scrub) { puts("Warning: " @@ -449,19 +543,14 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) if (argc < 3) goto usage; - s = strchr(cmd, '.'); off = (int)simple_strtoul(argv[2], NULL, 16); - - if (s != NULL && strcmp(s, ".oob") == 0) - ret = nand_dump(nand, off, 1); - else - ret = nand_dump(nand, off, 0); + ret = nand_dump(nand, off, !strcmp(&cmd[4], ".oob"), repeat); return ret == 0 ? 1 : 0; - } if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) { + size_t rwsize; int read; if (argc < 4) @@ -471,23 +560,26 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */ printf("\nNAND %s: ", read ? "read" : "write"); - if (arg_off_size(argc - 3, argv + 3, nand, &off, &size) != 0) + if (arg_off_size(argc - 3, argv + 3, &dev, &off, &size) != 0) return 1; + nand = &nand_info[dev]; + rwsize = size; + s = strchr(cmd, '.'); if (!s || !strcmp(s, ".jffs2") || !strcmp(s, ".e") || !strcmp(s, ".i")) { if (read) - ret = nand_read_skip_bad(nand, off, &size, + ret = nand_read_skip_bad(nand, off, &rwsize, (u_char *)addr); else - ret = nand_write_skip_bad(nand, off, &size, + ret = nand_write_skip_bad(nand, off, &rwsize, (u_char *)addr); } else if (!strcmp(s, ".oob")) { /* out-of-band data */ mtd_oob_ops_t ops = { .oobbuf = (u8 *)addr, - .ooblen = size, + .ooblen = rwsize, .mode = MTD_OOB_RAW }; @@ -500,7 +592,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) return 1; } - printf(" %zu bytes %s: %s\n", size, + printf(" %zu bytes %s: %s\n", rwsize, read ? "read" : "written", ret ? "ERROR" : "OK"); return ret == 0 ? 0 : 1; @@ -564,7 +656,7 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]) if (arg_off_size(argc - 2, argv + 2, nand, &off, &size) < 0) return 1; - if (!nand_unlock(nand, off, size)) { + if (!nand_unlock(&nand_info[dev], off, size)) { puts("NAND flash successfully unlocked\n"); } else { puts("Error unlocking NAND flash, " @@ -588,11 +680,16 @@ U_BOOT_CMD( "nand write - addr off|partition size\n" " read/write 'size' bytes starting at offset 'off'\n" " to/from memory address 'addr', skipping bad blocks.\n" - "nand erase [clean] [off size] - erase 'size' bytes from\n" - " offset 'off' (entire device if not specified)\n" + "nand erase[.spread] [clean] [off [size]] - erase 'size' bytes " + "from offset 'off'\n" + " With '.spread', erase enough for given file size, otherwise,\n" + " 'size' includes skipped bad blocks.\n" + "nand erase.part [clean] partition - erase entire mtd partition'\n" + "nand erase.chip [clean] - erase entire chip'\n" "nand bad - show bad blocks\n" "nand dump[.oob] off - dump page\n" - "nand scrub - really clean NAND erasing bad blocks (UNSAFE)\n" + "nand scrub off size | scrub.part partition | scrub.chip\n" + " really clean NAND erasing bad blocks (UNSAFE)\n" "nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n" "nand biterr off - make a bit error at offset (UNSAFE)" #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index 6eb52ed..a195dda 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -142,3 +142,47 @@ void put_mtd_device(struct mtd_info *mtd) c = --mtd->usecount; BUG_ON(c < 0); } + +#if defined(CONFIG_CMD_MTDPARTS_SPREAD) +/** + * mtd_get_len_incl_bad + * + * Check if length including bad blocks fits into device. + * + * @param mtd an MTD device + * @param offset offset in flash + * @param length image length + * @return image length including bad blocks in *len_incl_bad and whether or not + * the length returned was truncated in *truncated + */ +void mtd_get_len_incl_bad(struct mtd_info *mtd, uint64_t offset, + const uint64_t length, uint64_t *len_incl_bad, + int *truncated) +{ + *truncated = 0; + *len_incl_bad = 0; + + if (!mtd->block_isbad) { + *len_incl_bad = length; + return; + } + + uint64_t len_excl_bad = 0; + uint64_t block_len; + + while (len_excl_bad < length) { + if (offset >= mtd->size) { + *truncated = 1; + return; + } + + block_len = mtd->erasesize - (offset & (mtd->erasesize - 1)); + + if (!mtd->block_isbad(mtd, offset & ~(mtd->erasesize - 1))) + len_excl_bad += block_len; + + *len_incl_bad += block_len; + offset += block_len; + } +} +#endif /* defined(CONFIG_CMD_MTDPARTS_SPREAD) */ diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c index e2e43ea..f647e43 100644 --- a/drivers/mtd/mtdpart.c +++ b/drivers/mtd/mtdpart.c @@ -230,18 +230,6 @@ static void part_sync(struct mtd_info *mtd) part->master->sync(part->master); } -static int part_suspend(struct mtd_info *mtd) -{ - struct mtd_part *part = PART(mtd); - return part->master->suspend(part->master); -} - -static void part_resume(struct mtd_info *mtd) -{ - struct mtd_part *part = PART(mtd); - part->master->resume(part->master); -} - static int part_block_isbad(struct mtd_info *mtd, loff_t ofs) { struct mtd_part *part = PART(mtd); @@ -339,10 +327,6 @@ static struct mtd_part *add_one_partition(struct mtd_info *master, slave->mtd.get_fact_prot_info = part_get_fact_prot_info; if (master->sync) slave->mtd.sync = part_sync; - if (!partno && master->suspend && master->resume) { - slave->mtd.suspend = part_suspend; - slave->mtd.resume = part_resume; - } if (master->lock) slave->mtd.lock = part_lock; if (master->unlock) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 7d17846..21cc5a3 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -32,30 +32,6 @@ * */ -/* XXX U-BOOT XXX */ -#if 0 -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/errno.h> -#include <linux/err.h> -#include <linux/sched.h> -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/nand_ecc.h> -#include <linux/mtd/compatmac.h> -#include <linux/interrupt.h> -#include <linux/bitops.h> -#include <linux/leds.h> -#include <asm/io.h> - -#ifdef CONFIG_MTD_PARTITIONS -#include <linux/mtd/partitions.h> -#endif - -#endif - #include <common.h> #define ENOTSUPP 524 /* Operation is not supported */ @@ -75,10 +51,6 @@ #include <asm/io.h> #include <asm/errno.h> -#ifdef CONFIG_JFFS2_NAND -#include <jffs2/jffs2.h> -#endif - /* * CONFIG_SYS_NAND_RESET_CNT is used as a timeout mechanism when resetting * a flash. NAND flash is initialized prior to interrupts so standard timers @@ -143,44 +115,17 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to, static int nand_wait(struct mtd_info *mtd, struct nand_chip *this); -/* - * For devices which display every fart in the system on a separate LED. Is - * compiled away when LED support is disabled. - */ -/* XXX U-BOOT XXX */ -#if 0 -DEFINE_LED_TRIGGER(nand_led_trigger); -#endif - /** * nand_release_device - [GENERIC] release chip * @mtd: MTD device structure * * Deselect, release chip lock and wake up anyone waiting on the device */ -/* XXX U-BOOT XXX */ -#if 0 -static void nand_release_device(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - - /* De-select the NAND device */ - chip->select_chip(mtd, -1); - - /* Release the controller and the chip */ - spin_lock(&chip->controller->lock); - chip->controller->active = NULL; - chip->state = FL_READY; - wake_up(&chip->controller->wq); - spin_unlock(&chip->controller->lock); -} -#else static void nand_release_device (struct mtd_info *mtd) { struct nand_chip *this = mtd->priv; this->select_chip(mtd, -1); /* De-select the NAND device */ } -#endif /** * nand_read_byte - [DEFAULT] read one byte from the chip @@ -490,24 +435,6 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, * Wait for the ready pin, after a command * The timeout is catched later. */ -/* XXX U-BOOT XXX */ -#if 0 -void nand_wait_ready(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - unsigned long timeo = jiffies + 2; - - led_trigger_event(nand_led_trigger, LED_FULL); - /* wait until command is processed or timeout occures */ - do { - if (chip->dev_ready(mtd)) - break; - touch_softlockup_watchdog(); - } while (time_before(jiffies, timeo)); - led_trigger_event(nand_led_trigger, LED_OFF); -} -EXPORT_SYMBOL_GPL(nand_wait_ready); -#else void nand_wait_ready(struct mtd_info *mtd) { struct nand_chip *chip = mtd->priv; @@ -522,7 +449,6 @@ void nand_wait_ready(struct mtd_info *mtd) break; } } -#endif /** * nand_command - [DEFAULT] Send command to NAND device @@ -759,45 +685,11 @@ static void nand_command_lp(struct mtd_info *mtd, unsigned int command, * * Get the device and lock it for exclusive access */ -/* XXX U-BOOT XXX */ -#if 0 -static int -nand_get_device(struct nand_chip *chip, struct mtd_info *mtd, int new_state) -{ - spinlock_t *lock = &chip->controller->lock; - wait_queue_head_t *wq = &chip->controller->wq; - DECLARE_WAITQUEUE(wait, current); - retry: - spin_lock(lock); - - /* Hardware controller shared among independend devices */ - /* Hardware controller shared among independend devices */ - if (!chip->controller->active) - chip->controller->active = chip; - - if (chip->controller->active == chip && chip->state == FL_READY) { - chip->state = new_state; - spin_unlock(lock); - return 0; - } - if (new_state == FL_PM_SUSPENDED) { - spin_unlock(lock); - return (chip->state == FL_PM_SUSPENDED) ? 0 : -EAGAIN; - } - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(wq, &wait); - spin_unlock(lock); - schedule(); - remove_wait_queue(wq, &wait); - goto retry; -} -#else static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state) { this->state = new_state; return 0; } -#endif /** * nand_wait - [DEFAULT] wait until the command is done @@ -808,46 +700,6 @@ static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int ne * Erase can take up to 400ms and program up to 20ms according to * general NAND and SmartMedia specs */ -/* XXX U-BOOT XXX */ -#if 0 -static int nand_wait(struct mtd_info *mtd, struct nand_chip *chip) -{ - - unsigned long timeo = jiffies; - int status, state = chip->state; - - if (state == FL_ERASING) - timeo += (HZ * 400) / 1000; - else - timeo += (HZ * 20) / 1000; - - 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. */ - ndelay(100); - - if ((state == FL_ERASING) && (chip->options & NAND_IS_AND)) - chip->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1); - else - chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1); - - while (time_before(jiffies, timeo)) { - if (chip->dev_ready) { - if (chip->dev_ready(mtd)) - break; - } else { - if (chip->read_byte(mtd) & NAND_STATUS_READY) - break; - } - cond_resched(); - } - led_trigger_event(nand_led_trigger, LED_OFF); - - status = (int)chip->read_byte(mtd); - return status; -} -#else static int nand_wait(struct mtd_info *mtd, struct nand_chip *this) { unsigned long timeo; @@ -886,7 +738,6 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this) return this->read_byte(mtd); } -#endif /** * nand_read_page_raw - [Intern] read raw page data without ecc @@ -2001,13 +1852,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to, if (!writelen) return 0; - /* reject writes, which are not page aligned */ - if (NOTALIGNED(to) || NOTALIGNED(ops->len)) { - printk(KERN_NOTICE "nand_write: " - "Attempt to write not page aligned data\n"); - return -EINVAL; - } - column = to & (mtd->writesize - 1); subpage = column || (writelen & (mtd->writesize - 1)); @@ -2523,32 +2367,6 @@ static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs) return chip->block_markbad(mtd, ofs); } -/** - * nand_suspend - [MTD Interface] Suspend the NAND flash - * @mtd: MTD device structure - */ -static int nand_suspend(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - - return nand_get_device(chip, mtd, FL_PM_SUSPENDED); -} - -/** - * nand_resume - [MTD Interface] Resume the NAND flash - * @mtd: MTD device structure - */ -static void nand_resume(struct mtd_info *mtd) -{ - struct nand_chip *chip = mtd->priv; - - if (chip->state == FL_PM_SUSPENDED) - nand_release_device(mtd); - else - printk(KERN_ERR "nand_resume() called for a chip which is not " - "in suspended state\n"); -} - /* * Set default functions */ @@ -2584,17 +2402,8 @@ static void nand_set_defaults(struct nand_chip *chip, int busw) chip->verify_buf = busw ? nand_verify_buf16 : nand_verify_buf; if (!chip->scan_bbt) chip->scan_bbt = nand_default_bbt; - - if (!chip->controller) { + if (!chip->controller) chip->controller = &chip->hwcontrol; - - /* XXX U-BOOT XXX */ -#if 0 - spin_lock_init(&chip->controller->lock); - init_waitqueue_head(&chip->controller->wq); -#endif - } - } /* @@ -3028,8 +2837,6 @@ int nand_scan_tail(struct mtd_info *mtd) mtd->sync = nand_sync; mtd->lock = NULL; mtd->unlock = NULL; - mtd->suspend = nand_suspend; - mtd->resume = nand_resume; mtd->block_isbad = nand_block_isbad; mtd->block_markbad = nand_block_markbad; @@ -3043,16 +2850,6 @@ int nand_scan_tail(struct mtd_info *mtd) return 0; } -/* 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. */ -#ifdef MODULE -#define caller_is_module() (1) -#else -#define caller_is_module() \ - module_text_address((unsigned long)__builtin_return_address(0)) -#endif - /** * nand_scan - [NAND Interface] Scan for the NAND device * @mtd: MTD device structure @@ -3069,15 +2866,6 @@ int nand_scan(struct mtd_info *mtd, int maxchips) { int ret; - /* Many callers got this wrong, so check for it for a while... */ - /* XXX U-BOOT XXX */ -#if 0 - if (!mtd->owner && caller_is_module()) { - printk(KERN_CRIT "nand_scan() called with NULL mtd->owner!\n"); - BUG(); - } -#endif - ret = nand_scan_ident(mtd, maxchips); if (!ret) ret = nand_scan_tail(mtd); @@ -3096,40 +2884,9 @@ void nand_release(struct mtd_info *mtd) /* Deregister partitions */ del_mtd_partitions(mtd); #endif - /* Deregister the device */ - /* XXX U-BOOT XXX */ -#if 0 - del_mtd_device(mtd); -#endif /* Free bad block table memory */ kfree(chip->bbt); if (!(chip->options & NAND_OWN_BUFFERS)) kfree(chip->buffers); } - -/* XXX U-BOOT XXX */ -#if 0 -EXPORT_SYMBOL_GPL(nand_scan); -EXPORT_SYMBOL_GPL(nand_scan_ident); -EXPORT_SYMBOL_GPL(nand_scan_tail); -EXPORT_SYMBOL_GPL(nand_release); - -static int __init nand_base_init(void) -{ - led_trigger_register_simple("nand-disk", &nand_led_trigger); - return 0; -} - -static void __exit nand_base_exit(void) -{ - led_trigger_unregister_simple(nand_led_trigger); -} - -module_init(nand_base_init); -module_exit(nand_base_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>"); -MODULE_DESCRIPTION("Generic NAND flash driver code"); -#endif diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c index 2fe68ab..521ddde 100644 --- a/drivers/mtd/nand/nand_bbt.c +++ b/drivers/mtd/nand/nand_bbt.c @@ -58,19 +58,6 @@ #include <asm/errno.h> -/* XXX U-BOOT XXX */ -#if 0 -#include <linux/slab.h> -#include <linux/types.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/nand_ecc.h> -#include <linux/mtd/compatmac.h> -#include <linux/bitops.h> -#include <linux/delay.h> -#include <linux/vmalloc.h> -#endif - /** * check_pattern - [GENERIC] check if a pattern is in the buffer * @buf: the buffer to search @@ -1231,9 +1218,3 @@ int nand_isbad_bbt(struct mtd_info *mtd, loff_t offs, int allowbbt) } return 1; } - -/* XXX U-BOOT XXX */ -#if 0 -EXPORT_SYMBOL(nand_scan_bbt); -EXPORT_SYMBOL(nand_default_bbt); -#endif diff --git a/drivers/mtd/nand/nand_ecc.c b/drivers/mtd/nand/nand_ecc.c index 463f9cb..52bc916 100644 --- a/drivers/mtd/nand/nand_ecc.c +++ b/drivers/mtd/nand/nand_ecc.c @@ -37,14 +37,6 @@ #include <common.h> -/* XXX U-BOOT XXX */ -#if 0 -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/mtd/nand_ecc.h> -#endif - #include <asm/errno.h> #include <linux/mtd/mtd.h> @@ -140,10 +132,6 @@ int nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat, return 0; } -/* XXX U-BOOT XXX */ -#if 0 -EXPORT_SYMBOL(nand_calculate_ecc); -#endif #endif /* CONFIG_NAND_SPL */ static inline int countbits(uint32_t byte) @@ -212,8 +200,3 @@ int nand_correct_data(struct mtd_info *mtd, u_char *dat, return -EBADMSG; } - -/* XXX U-BOOT XXX */ -#if 0 -EXPORT_SYMBOL(nand_correct_data); -#endif diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c index 29c42f7..22c7411 100644 --- a/drivers/mtd/nand/nand_util.c +++ b/drivers/mtd/nand/nand_util.c @@ -28,6 +28,12 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA * + * Copyright 2010 Freescale Semiconductor + * The portions of this file whose copyright is held by Freescale and which + * are not considered a derived work of GPL v2-only code may be distributed + * and/or modified 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. */ #include <common.h> @@ -69,7 +75,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) { struct jffs2_unknown_node cleanmarker; erase_info_t erase; - ulong erase_length; + unsigned long erase_length, erased_length; /* in blocks */ int bbtest = 1; int result; int percent_complete = -1; @@ -78,13 +84,19 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) struct mtd_oob_ops oob_opts; struct nand_chip *chip = meminfo->priv; + if ((opts->offset & (meminfo->writesize - 1)) != 0) { + printf("Attempt to erase non page aligned data\n"); + return -1; + } + memset(&erase, 0, sizeof(erase)); memset(&oob_opts, 0, sizeof(oob_opts)); erase.mtd = meminfo; erase.len = meminfo->erasesize; erase.addr = opts->offset; - erase_length = opts->length; + erase_length = lldiv(opts->length + meminfo->erasesize - 1, + meminfo->erasesize); cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK); cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER); @@ -108,15 +120,8 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) priv_nand->bbt = NULL; } - if (erase_length < meminfo->erasesize) { - printf("Warning: Erase size 0x%08lx smaller than one " \ - "erase block 0x%08x\n",erase_length, meminfo->erasesize); - printf(" Erasing 0x%08x instead\n", meminfo->erasesize); - erase_length = meminfo->erasesize; - } - - for (; - erase.addr < opts->offset + erase_length; + for (erased_length = 0; + erased_length < erase_length; erase.addr += meminfo->erasesize) { WATCHDOG_RESET (); @@ -129,6 +134,10 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) "0x%08llx " " \n", erase.addr); + + if (!opts->spread) + erased_length++; + continue; } else if (ret < 0) { @@ -139,6 +148,8 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } } + erased_length++; + result = meminfo->erase(meminfo, &erase); if (result != 0) { printf("\n%s: MTD Erase failure: %d\n", @@ -165,9 +176,7 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) } if (!opts->quiet) { - unsigned long long n =(unsigned long long) - (erase.addr + meminfo->erasesize - opts->offset) - * 100; + unsigned long long n = erased_length * 100ULL; int percent; do_div(n, erase_length); @@ -202,41 +211,6 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts) return 0; } -/* XXX U-BOOT XXX */ -#if 0 - -#define MAX_PAGE_SIZE 2048 -#define MAX_OOB_SIZE 64 - -/* - * buffer array used for writing data - */ -static unsigned char data_buf[MAX_PAGE_SIZE]; -static unsigned char oob_buf[MAX_OOB_SIZE]; - -/* OOB layouts to pass into the kernel as default */ -static struct nand_ecclayout none_ecclayout = { - .useecc = MTD_NANDECC_OFF, -}; - -static struct nand_ecclayout jffs2_ecclayout = { - .useecc = MTD_NANDECC_PLACE, - .eccbytes = 6, - .eccpos = { 0, 1, 2, 3, 6, 7 } -}; - -static struct nand_ecclayout yaffs_ecclayout = { - .useecc = MTD_NANDECC_PLACE, - .eccbytes = 6, - .eccpos = { 8, 9, 10, 13, 14, 15} -}; - -static struct nand_ecclayout autoplace_ecclayout = { - .useecc = MTD_NANDECC_AUTOPLACE -}; -#endif - -/* XXX U-BOOT XXX */ #ifdef CONFIG_CMD_NAND_LOCK_UNLOCK /****************************************************************************** @@ -423,36 +397,43 @@ int nand_unlock(struct mtd_info *mtd, ulong start, ulong length) #endif /** - * get_len_incl_bad + * check_skip_len * - * Check if length including bad blocks fits into device. + * Check if there are any bad blocks, and whether length including bad + * blocks fits into device * * @param nand NAND device * @param offset offset in flash * @param length image length - * @return image length including bad blocks + * @return 0 if the image fits and there are no bad blocks + * 1 if the image fits, but there are bad blocks + * -1 if the image does not fit */ -static size_t get_len_incl_bad (nand_info_t *nand, loff_t offset, - const size_t length) +static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length) { - size_t len_incl_bad = 0; size_t len_excl_bad = 0; - size_t block_len; + int ret = 0; while (len_excl_bad < length) { - block_len = nand->erasesize - (offset & (nand->erasesize - 1)); + size_t block_len, block_off; + loff_t block_start; - if (!nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) - len_excl_bad += block_len; + if (offset >= nand->size) + return -1; - len_incl_bad += block_len; - offset += block_len; + block_start = offset & ~(loff_t)(nand->erasesize - 1); + block_off = offset & (nand->erasesize - 1); + block_len = nand->erasesize - block_off; - if (offset >= nand->size) - break; + if (!nand_block_isbad(nand, block_start)) + len_excl_bad += block_len; + else + ret = 1; + + offset += block_len; } - return len_incl_bad; + return ret; } /** @@ -474,29 +455,41 @@ int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, { int rval; size_t left_to_write = *length; - size_t len_incl_bad; u_char *p_buffer = buffer; + int need_skip; - /* Reject writes, which are not page aligned */ - if ((offset & (nand->writesize - 1)) != 0 || - (*length & (nand->writesize - 1)) != 0) { + /* + * nand_write() handles unaligned, partial page writes. + * + * We allow length to be unaligned, for convenience in + * using the $filesize variable. + * + * However, starting at an unaligned offset makes the + * semantics of bad block skipping ambiguous (really, + * you should only start a block skipping access at a + * partition boundary). So don't try to handle that. + */ + if ((offset & (nand->writesize - 1)) != 0) { printf ("Attempt to write non page aligned data\n"); + *length = 0; return -EINVAL; } - len_incl_bad = get_len_incl_bad (nand, offset, *length); - - if ((offset + len_incl_bad) > nand->size) { + need_skip = check_skip_len(nand, offset, *length); + if (need_skip < 0) { printf ("Attempt to write outside the flash area\n"); + *length = 0; return -EINVAL; } - if (len_incl_bad == *length) { + if (!need_skip) { rval = nand_write (nand, offset, length, buffer); - if (rval != 0) - printf ("NAND write to offset %llx failed %d\n", - offset, rval); + if (rval == 0) + return 0; + *length = 0; + printf ("NAND write to offset %llx failed %d\n", + offset, rval); return rval; } @@ -553,20 +546,28 @@ int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length, { int rval; size_t left_to_read = *length; - size_t len_incl_bad; u_char *p_buffer = buffer; + int need_skip; - len_incl_bad = get_len_incl_bad (nand, offset, *length); + if ((offset & (nand->writesize - 1)) != 0) { + printf ("Attempt to read non page aligned data\n"); + *length = 0; + return -EINVAL; + } - if ((offset + len_incl_bad) > nand->size) { + need_skip = check_skip_len(nand, offset, *length); + if (need_skip < 0) { printf ("Attempt to read outside the flash area\n"); + *length = 0; return -EINVAL; } - if (len_incl_bad == *length) { + if (!need_skip) { rval = nand_read (nand, offset, length, buffer); if (!rval || rval == -EUCLEAN) return 0; + + *length = 0; printf ("NAND read from offset %llx failed %d\n", offset, rval); return rval; diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index f9273ab..24e02c2 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -2213,6 +2213,7 @@ char *onenand_print_device_info(int device, int version) } static const struct onenand_manufacturers onenand_manuf_ids[] = { + {ONENAND_MFR_NUMONYX, "Numonyx"}, {ONENAND_MFR_SAMSUNG, "Samsung"}, }; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 16556c4..3b18d7d 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -208,10 +208,6 @@ struct mtd_info { int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len); - /* Power Management functions */ - int (*suspend) (struct mtd_info *mtd); - void (*resume) (struct mtd_info *mtd); - /* Bad block management functions */ int (*block_isbad) (struct mtd_info *mtd, loff_t ofs); int (*block_markbad) (struct mtd_info *mtd, loff_t ofs); @@ -259,7 +255,9 @@ extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num); extern struct mtd_info *get_mtd_device_nm(const char *name); extern void put_mtd_device(struct mtd_info *mtd); - +extern void mtd_get_len_incl_bad(struct mtd_info *mtd, uint64_t offset, + const uint64_t length, uint64_t *len_incl_bad, + int *truncated); /* XXX U-BOOT XXX */ #if 0 struct mtd_notifier { diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h index 68e174e..5465562 100644 --- a/include/linux/mtd/onenand.h +++ b/include/linux/mtd/onenand.h @@ -154,6 +154,7 @@ struct onenand_chip { /* * OneNAND Flash Manufacturer ID Codes */ +#define ONENAND_MFR_NUMONYX 0x20 #define ONENAND_MFR_SAMSUNG 0xec /** diff --git a/include/nand.h b/include/nand.h index 8bdf419..a452411 100644 --- a/include/nand.h +++ b/include/nand.h @@ -98,13 +98,16 @@ struct nand_read_options { typedef struct nand_read_options nand_read_options_t; struct nand_erase_options { - ulong length; /* number of bytes to erase */ - ulong offset; /* first address in NAND to erase */ + loff_t length; /* number of bytes to erase */ + loff_t offset; /* first address in NAND to erase */ int quiet; /* don't display progress messages */ int jffs2; /* if true: format for jffs2 usage * (write appropriate cleanmarker blocks) */ int scrub; /* if true, really clean NAND by erasing * bad blocks (UNSAFE) */ + + /* Don't include skipped bad blocks in size to be erased */ + int spread; }; typedef struct nand_erase_options nand_erase_options_t; |