3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
9 * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
12 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
14 * Added support for reading flash partition table from environment.
15 * Parsing routines are based on driver/mtd/cmdline.c from the linux 2.4
18 * $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
19 * Copyright 2002 SYSGO Real-Time Solutions GmbH
21 * See file CREDITS for list of people who contributed to this
24 * This program is free software; you can redistribute it and/or
25 * modify it under the terms of the GNU General Public License as
26 * published by the Free Software Foundation; either version 2 of
27 * the License, or (at your option) any later version.
29 * This program is distributed in the hope that it will be useful,
30 * but WITHOUT ANY WARRANTY; without even the implied warranty of
31 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
32 * GNU General Public License for more details.
34 * You should have received a copy of the GNU General Public License
35 * along with this program; if not, write to the Free Software
36 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
41 * Three environment variables are used by the parsing routines:
43 * 'partition' - keeps current partition identifier
45 * partition := <part-id>
46 * <part-id> := <dev-id>,part_num
49 * 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
51 * mtdids=<idmap>[,<idmap>,...]
53 * <idmap> := <dev-id>=<mtd-id>
54 * <dev-id> := 'nand'|'nor'<dev-num>
55 * <dev-num> := mtd device number, 0...
56 * <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
59 * 'mtdparts' - partition list
61 * mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
63 * <mtd-def> := <mtd-id>:<part-def>[,<part-def>...]
64 * <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
65 * <part-def> := <size>[@<offset>][<name>][<ro-flag>]
66 * <size> := standard linux memsize OR '-' to denote all remaining space
67 * <offset> := partition start offset within the device
68 * <name> := '(' NAME ')'
69 * <ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)
72 * - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
73 * - if the above variables are not set defaults for a given target are used
77 * 1 NOR Flash, with 1 single writable partition:
78 * mtdids=nor0=edb7312-nor
79 * mtdparts=mtdparts=edb7312-nor:-
81 * 1 NOR Flash with 2 partitions, 1 NAND with one
82 * mtdids=nor0=edb7312-nor,nand0=edb7312-nand
83 * mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
88 * JFFS2/CRAMFS support
93 #include <jffs2/jffs2.h>
94 #include <linux/mtd/nand.h>
95 #include <linux/list.h>
96 #include <linux/ctype.h>
98 #if (CONFIG_COMMANDS & CFG_CMD_JFFS2)
100 #include <cramfs/cramfs_fs.h>
102 #ifdef CONFIG_NEW_NAND_CODE
106 /* enable/disable debugging messages */
111 # define DEBUGF(fmt, args...) printf(fmt ,##args)
113 # define DEBUGF(fmt, args...)
116 /* special size referring to all the remaining space in a partition */
117 #define SIZE_REMAINING 0xFFFFFFFF
119 /* special offset value, it is used when not provided by user
121 * this value is used temporarily during parsing, later such offests
122 * are recalculated */
123 #define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
125 /* minimum partition size */
126 #define MIN_PART_SIZE 4096
128 /* this flag needs to be set in part_info struct mask_flags
129 * field for read-only partitions */
130 #define MTD_WRITEABLE_CMD 1
132 #ifdef CONFIG_JFFS2_CMDLINE
133 /* default values for mtdids and mtdparts variables */
134 #if defined(MTDIDS_DEFAULT)
135 static const char *const mtdids_default = MTDIDS_DEFAULT;
137 #warning "MTDIDS_DEFAULT not defined!"
138 static const char *const mtdids_default = NULL;
141 #if defined(MTDPARTS_DEFAULT)
142 static const char *const mtdparts_default = MTDPARTS_DEFAULT;
144 #warning "MTDPARTS_DEFAULT not defined!"
145 static const char *const mtdparts_default = NULL;
148 /* copies of last seen 'mtdids', 'mtdparts' and 'partition' env variables */
149 #define MTDIDS_MAXLEN 128
150 #define MTDPARTS_MAXLEN 512
151 #define PARTITION_MAXLEN 16
152 static char last_ids[MTDIDS_MAXLEN];
153 static char last_parts[MTDPARTS_MAXLEN];
154 static char last_partition[PARTITION_MAXLEN];
156 /* low level jffs2 cache cleaning routine */
157 extern void jffs2_free_cache(struct part_info *part);
159 /* mtdids mapping list, filled by parse_ids() */
160 struct list_head mtdids;
162 /* device/partition list, parse_cmdline() parses into here */
163 struct list_head devices;
164 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
166 /* current active device and partition number */
167 static struct mtd_device *current_dev = NULL;
168 static u8 current_partnum = 0;
170 extern int cramfs_check (struct part_info *info);
171 extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
172 extern int cramfs_ls (struct part_info *info, char *filename);
173 extern int cramfs_info (struct part_info *info);
175 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num);
177 /* command line only routines */
178 #ifdef CONFIG_JFFS2_CMDLINE
180 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
181 static int device_del(struct mtd_device *dev);
184 * Parses a string into a number. The number stored at ptr is
185 * potentially suffixed with K (for kilobytes, or 1024 bytes),
186 * M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
187 * 1073741824). If the number is suffixed with K, M, or G, then
188 * the return value is the number multiplied by one kilobyte, one
189 * megabyte, or one gigabyte, respectively.
191 * @param ptr where parse begins
192 * @param retptr output pointer to next char after parse completes (output)
193 * @return resulting unsigned int
195 static unsigned long memsize_parse (const char *const ptr, const char **retptr)
197 unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
218 * Format string describing supplied size. This routine does the opposite job
219 * to memsize_parse(). Size in bytes is converted to string and if possible
220 * shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
222 * Note, that this routine does not check for buffer overflow, it's the caller
223 * who must assure enough space.
225 * @param buf output buffer
226 * @param size size to be converted to string
228 static void memsize_format(char *buf, u32 size)
230 #define SIZE_GB ((u32)1024*1024*1024)
231 #define SIZE_MB ((u32)1024*1024)
232 #define SIZE_KB ((u32)1024)
234 if ((size % SIZE_GB) == 0)
235 sprintf(buf, "%lug", size/SIZE_GB);
236 else if ((size % SIZE_MB) == 0)
237 sprintf(buf, "%lum", size/SIZE_MB);
238 else if (size % SIZE_KB == 0)
239 sprintf(buf, "%luk", size/SIZE_KB);
241 sprintf(buf, "%lu", size);
245 * This routine does global indexing of all partitions. Resulting index for
246 * current partition is saved in 'mtddevnum'. Current partition name in
249 static void index_partitions(void)
253 struct part_info *part;
254 struct list_head *dentry;
255 struct mtd_device *dev;
257 DEBUGF("--- index partitions ---\n");
261 list_for_each(dentry, &devices) {
262 dev = list_entry(dentry, struct mtd_device, link);
263 if (dev == current_dev) {
264 mtddevnum += current_partnum;
265 sprintf(buf, "%d", mtddevnum);
266 setenv("mtddevnum", buf);
269 mtddevnum += dev->num_parts;
272 part = jffs2_part_info(current_dev, current_partnum);
273 setenv("mtddevname", part->name);
275 DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
277 setenv("mtddevnum", NULL);
278 setenv("mtddevname", NULL);
280 DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
285 * Save current device and partition in environment variable 'partition'.
287 static void current_save(void)
291 DEBUGF("--- current_save ---\n");
294 sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_dev->id->type),
295 current_dev->id->num, current_partnum);
297 setenv("partition", buf);
298 strncpy(last_partition, buf, 16);
300 DEBUGF("=> partition %s\n", buf);
302 setenv("partition", NULL);
303 last_partition[0] = '\0';
305 DEBUGF("=> partition NULL\n");
311 * Performs sanity check for supplied NOR flash partition. Table of existing
312 * NOR flash devices is searched and partition device is located. Alignment
313 * with the granularity of NOR flash sectors is verified.
315 * @param id of the parent device
316 * @param part partition to validate
317 * @return 0 if partition is valid, 1 otherwise
319 static int part_validate_nor(struct mtdids *id, struct part_info *part)
321 #if (CONFIG_COMMANDS & CFG_CMD_FLASH)
322 /* info for FLASH chips */
323 extern flash_info_t flash_info[];
329 flash = &flash_info[id->num];
332 for (i = 0; i < flash->sector_count; i++) {
333 if ((flash->start[i] - flash->start[0]) == part->offset) {
338 if (offset_aligned == 0) {
339 printf("%s%d: partition (%s) start offset alignment incorrect\n",
340 MTD_DEV_TYPE(id->type), id->num, part->name);
344 end_offset = part->offset + part->size;
345 for (i = 0; i < flash->sector_count; i++) {
346 if ((flash->start[i] - flash->start[0]) == end_offset)
350 if (flash->size == end_offset)
353 printf("%s%d: partition (%s) size alignment incorrect\n",
354 MTD_DEV_TYPE(id->type), id->num, part->name);
360 * Performs sanity check for supplied NAND flash partition. Table of existing
361 * NAND flash devices is searched and partition device is located. Alignment
362 * with the granularity of nand erasesize is verified.
364 * @param id of the parent device
365 * @param part partition to validate
366 * @return 0 if partition is valid, 1 otherwise
368 static int part_validate_nand(struct mtdids *id, struct part_info *part)
370 #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
371 /* info for NAND chips */
374 nand = &nand_info[id->num];
376 if ((unsigned long)(part->offset) % nand->erasesize) {
377 printf("%s%d: partition (%s) start offset alignment incorrect\n",
378 MTD_DEV_TYPE(id->type), id->num, part->name);
382 if (part->size % nand->erasesize) {
383 printf("%s%d: partition (%s) size alignment incorrect\n",
384 MTD_DEV_TYPE(id->type), id->num, part->name);
395 * Performs sanity check for supplied partition. Offset and size are verified
396 * to be within valid range. Partition type is checked and either
397 * parts_validate_nor() or parts_validate_nand() is called with the argument
400 * @param id of the parent device
401 * @param part partition to validate
402 * @return 0 if partition is valid, 1 otherwise
404 static int part_validate(struct mtdids *id, struct part_info *part)
406 if (part->size == SIZE_REMAINING)
407 part->size = id->size - part->offset;
409 if (part->offset > id->size) {
410 printf("%s: offset %08lx beyond flash size %08lx\n",
411 id->mtd_id, part->offset, id->size);
415 if ((part->offset + part->size) <= part->offset) {
416 printf("%s%d: partition (%s) size too big\n",
417 MTD_DEV_TYPE(id->type), id->num, part->name);
421 if (part->offset + part->size > id->size) {
422 printf("%s: partitioning exceeds flash size\n", id->mtd_id);
426 if (id->type == MTD_DEV_TYPE_NAND)
427 return part_validate_nand(id, part);
428 else if (id->type == MTD_DEV_TYPE_NOR)
429 return part_validate_nor(id, part);
431 DEBUGF("part_validate: invalid dev type\n");
437 * Delete selected partition from the partion list of the specified device.
439 * @param dev device to delete partition from
440 * @param part partition to delete
441 * @return 0 on success, 1 otherwise
443 static int part_del(struct mtd_device *dev, struct part_info *part)
445 u8 current_save_needed = 0;
447 /* if there is only one partition, remove whole device */
448 if (dev->num_parts == 1)
449 return device_del(dev);
451 /* otherwise just delete this partition */
453 if (dev == current_dev) {
454 /* we are modyfing partitions for the current device,
456 struct part_info *curr_pi;
457 curr_pi = jffs2_part_info(current_dev, current_partnum);
460 if (curr_pi == part) {
461 printf("current partition deleted, resetting current to 0\n");
463 } else if (part->offset <= curr_pi->offset) {
466 current_save_needed = 1;
470 #ifndef CONFIG_NEW_NAND_CODE
471 jffs2_free_cache(part);
473 list_del(&part->link);
477 if (current_save_needed > 0)
486 * Delete all partitions from parts head list, free memory.
488 * @param head list of partitions to delete
490 static void part_delall(struct list_head *head)
492 struct list_head *entry, *n;
493 struct part_info *part_tmp;
495 /* clean tmp_list and free allocated memory */
496 list_for_each_safe(entry, n, head) {
497 part_tmp = list_entry(entry, struct part_info, link);
499 #ifndef CONFIG_NEW_NAND_CODE
500 jffs2_free_cache(part_tmp);
508 * Add new partition to the supplied partition list. Make sure partitions are
509 * sorted by offset in ascending order.
511 * @param head list this partition is to be added to
512 * @param new partition to be added
514 static int part_sort_add(struct mtd_device *dev, struct part_info *part)
516 struct list_head *entry;
517 struct part_info *new_pi, *curr_pi;
519 /* link partition to parrent dev */
522 if (list_empty(&dev->parts)) {
523 DEBUGF("part_sort_add: list empty\n");
524 list_add(&part->link, &dev->parts);
530 new_pi = list_entry(&part->link, struct part_info, link);
532 /* get current partition info if we are updating current device */
534 if (dev == current_dev)
535 curr_pi = jffs2_part_info(current_dev, current_partnum);
537 list_for_each(entry, &dev->parts) {
538 struct part_info *pi;
540 pi = list_entry(entry, struct part_info, link);
542 /* be compliant with kernel cmdline, allow only one partition at offset zero */
543 if ((new_pi->offset == pi->offset) && (pi->offset == 0)) {
544 printf("cannot add second partition at offset 0\n");
548 if (new_pi->offset <= pi->offset) {
549 list_add_tail(&part->link, entry);
552 if (curr_pi && (pi->offset <= curr_pi->offset)) {
553 /* we are modyfing partitions for the current
554 * device, update current */
564 list_add_tail(&part->link, &dev->parts);
571 * Add provided partition to the partition list of a given device.
573 * @param dev device to which partition is added
574 * @param part partition to be added
575 * @return 0 on success, 1 otherwise
577 static int part_add(struct mtd_device *dev, struct part_info *part)
579 /* verify alignment and size */
580 if (part_validate(dev->id, part) != 0)
583 /* partition is ok, add it to the list */
584 if (part_sort_add(dev, part) != 0)
591 * Parse one partition definition, allocate memory and return pointer to this
592 * location in retpart.
594 * @param partdef pointer to the partition definition string i.e. <part-def>
595 * @param ret output pointer to next char after parse completes (output)
596 * @param retpart pointer to the allocated partition (output)
597 * @return 0 on success, 1 otherwise
599 static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
601 struct part_info *part;
603 unsigned long offset;
606 unsigned int mask_flags;
613 /* fetch the partition size */
615 /* assign all remaining space to this partition */
616 DEBUGF("'-': remaining size assigned\n");
617 size = SIZE_REMAINING;
620 size = memsize_parse(p, &p);
621 if (size < MIN_PART_SIZE) {
622 printf("partition size too small (%lx)\n", size);
627 /* check for offset */
628 offset = OFFSET_NOT_SPECIFIED;
631 offset = memsize_parse(p, &p);
634 /* now look for the name */
637 if ((p = strchr(name, ')')) == NULL) {
638 printf("no closing ) found in partition name\n");
641 name_len = p - name + 1;
642 if ((name_len - 1) == 0) {
643 printf("empty partition name\n");
648 /* 0x00000000@0x00000000 */
653 /* test for options */
655 if (strncmp(p, "ro", 2) == 0) {
656 mask_flags |= MTD_WRITEABLE_CMD;
660 /* check for next partition definition */
662 if (size == SIZE_REMAINING) {
664 printf("no partitions allowed after a fill-up partition\n");
668 } else if ((*p == ';') || (*p == '\0')) {
671 printf("unexpected character '%c' at the end of partition\n", *p);
676 /* allocate memory */
677 part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
679 printf("out of memory\n");
682 memset(part, 0, sizeof(struct part_info) + name_len);
684 part->offset = offset;
685 part->mask_flags = mask_flags;
686 part->name = (char *)(part + 1);
689 /* copy user provided name */
690 strncpy(part->name, name, name_len - 1);
693 /* auto generated name in form of size@offset */
694 sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
698 part->name[name_len - 1] = '\0';
699 INIT_LIST_HEAD(&part->link);
701 DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
702 part->name, part->size,
703 part->offset, part->mask_flags);
708 #endif/* #ifdef CONFIG_JFFS2_CMDLINE */
711 * Check device number to be within valid range for given device type.
713 * @param dev device to validate
714 * @return 0 if device is valid, 1 otherwise
716 static int device_validate(u8 type, u8 num, u32 *size)
718 if (type == MTD_DEV_TYPE_NOR) {
719 #if (CONFIG_COMMANDS & CFG_CMD_FLASH)
720 if (num < CFG_MAX_FLASH_BANKS) {
721 extern flash_info_t flash_info[];
722 *size = flash_info[num].size;
727 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
728 MTD_DEV_TYPE(type), num, CFG_MAX_FLASH_BANKS - 1);
730 printf("support for FLASH devices not present\n");
732 } else if (type == MTD_DEV_TYPE_NAND) {
733 #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
734 if (num < CFG_MAX_NAND_DEVICE) {
735 #ifdef CONFIG_NEW_NAND_CODE
736 *size = nand_info[num].size;
738 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
739 *size = nand_dev_desc[num].totlen;
744 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
745 MTD_DEV_TYPE(type), num, CFG_MAX_NAND_DEVICE - 1);
747 printf("support for NAND devices not present\n");
754 #ifdef CONFIG_JFFS2_CMDLINE
756 * Delete all mtd devices from a supplied devices list, free memory allocated for
757 * each device and delete all device partitions.
759 * @return 0 on success, 1 otherwise
761 static int device_delall(struct list_head *head)
763 struct list_head *entry, *n;
764 struct mtd_device *dev_tmp;
766 /* clean devices list */
767 list_for_each_safe(entry, n, head) {
768 dev_tmp = list_entry(entry, struct mtd_device, link);
770 part_delall(&dev_tmp->parts);
773 INIT_LIST_HEAD(&devices);
779 * If provided device exists it's partitions are deleted, device is removed
780 * from device list and device memory is freed.
782 * @param dev device to be deleted
783 * @return 0 on success, 1 otherwise
785 static int device_del(struct mtd_device *dev)
787 part_delall(&dev->parts);
788 list_del(&dev->link);
791 if (dev == current_dev) {
792 /* we just deleted current device */
793 if (list_empty(&devices)) {
796 /* reset first partition from first dev from the
797 * devices list as current */
798 current_dev = list_entry(devices.next, struct mtd_device, link);
810 * Search global device list and return pointer to the device of type and num
813 * @param type device type
814 * @param num device number
815 * @return NULL if requested device does not exist
817 static struct mtd_device* device_find(u8 type, u8 num)
819 struct list_head *entry;
820 struct mtd_device *dev_tmp;
822 list_for_each(entry, &devices) {
823 dev_tmp = list_entry(entry, struct mtd_device, link);
825 if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
833 * Add specified device to the global device list.
835 * @param dev device to be added
837 static void device_add(struct mtd_device *dev)
839 u8 current_save_needed = 0;
841 if (list_empty(&devices)) {
844 current_save_needed = 1;
847 list_add_tail(&dev->link, &devices);
849 if (current_save_needed > 0)
856 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
857 * return pointer to the device structure.
859 * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
860 * @param ret output pointer to next char after parse completes (output)
861 * @param retdev pointer to the allocated device (output)
862 * @return 0 on success, 1 otherwise
864 static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
866 struct mtd_device *dev;
867 struct part_info *part;
870 unsigned int mtd_id_len;
871 const char *p, *pend;
873 struct list_head *entry, *n;
882 DEBUGF("===device_parse===\n");
886 if (!(p = strchr(mtd_id, ':'))) {
887 printf("no <mtd-id> identifier\n");
890 mtd_id_len = p - mtd_id + 1;
893 /* verify if we have a valid device specified */
894 if ((id = id_find_by_mtd_id(mtd_id, mtd_id_len - 1)) == NULL) {
895 printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
899 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
900 id->type, MTD_DEV_TYPE(id->type),
901 id->num, id->mtd_id);
902 pend = strchr(p, ';');
903 DEBUGF("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
906 /* parse partitions */
910 if ((dev = device_find(id->type, id->num)) != NULL) {
911 /* if device already exists start at the end of the last partition */
912 part = list_entry(dev->parts.prev, struct part_info, link);
913 offset = part->offset + part->size;
916 while (p && (*p != '\0') && (*p != ';')) {
918 if ((part_parse(p, &p, &part) != 0) || (!part))
921 /* calculate offset when not specified */
922 if (part->offset == OFFSET_NOT_SPECIFIED)
923 part->offset = offset;
925 offset = part->offset;
927 /* verify alignment and size */
928 if (part_validate(id, part) != 0)
931 offset += part->size;
933 /* partition is ok, add it to the list */
934 list_add_tail(&part->link, &tmp_list);
939 part_delall(&tmp_list);
943 if (num_parts == 0) {
944 printf("no partitions for device %s%d (%s)\n",
945 MTD_DEV_TYPE(id->type), id->num, id->mtd_id);
949 DEBUGF("\ntotal partitions: %d\n", num_parts);
951 /* check for next device presence */
955 } else if (*p == '\0') {
958 printf("unexpected character '%c' at the end of device\n", *p);
964 /* allocate memory for mtd_device structure */
965 if ((dev = (struct mtd_device *)malloc(sizeof(struct mtd_device))) == NULL) {
966 printf("out of memory\n");
969 memset(dev, 0, sizeof(struct mtd_device));
971 dev->num_parts = 0; /* part_sort_add increments num_parts */
972 INIT_LIST_HEAD(&dev->parts);
973 INIT_LIST_HEAD(&dev->link);
975 /* move partitions from tmp_list to dev->parts */
976 list_for_each_safe(entry, n, &tmp_list) {
977 part = list_entry(entry, struct part_info, link);
979 if (part_sort_add(dev, part) != 0) {
992 * Initialize global device list.
994 * @return 0 on success, 1 otherwise
996 static int devices_init(void)
998 last_parts[0] = '\0';
1002 return device_delall(&devices);
1006 * Search global mtdids list and find id of requested type and number.
1008 * @return pointer to the id if it exists, NULL otherwise
1010 static struct mtdids* id_find(u8 type, u8 num)
1012 struct list_head *entry;
1015 list_for_each(entry, &mtdids) {
1016 id = list_entry(entry, struct mtdids, link);
1018 if ((id->type == type) && (id->num == num))
1026 * Search global mtdids list and find id of a requested mtd_id.
1028 * Note: first argument is not null terminated.
1030 * @param mtd_id string containing requested mtd_id
1031 * @param mtd_id_len length of supplied mtd_id
1032 * @return pointer to the id if it exists, NULL otherwise
1034 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
1036 struct list_head *entry;
1039 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1040 mtd_id_len, mtd_id, mtd_id_len);
1042 list_for_each(entry, &mtdids) {
1043 id = list_entry(entry, struct mtdids, link);
1045 DEBUGF("entry: '%s' (len = %d)\n",
1046 id->mtd_id, strlen(id->mtd_id));
1048 if (mtd_id_len != strlen(id->mtd_id))
1050 if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
1056 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1059 * Parse device id string <dev-id> := 'nand'|'nor'<dev-num>, return device
1062 * @param id string describing device id
1063 * @param ret_id output pointer to next char after parse completes (output)
1064 * @param dev_type parsed device type (output)
1065 * @param dev_num parsed device number (output)
1066 * @return 0 on success, 1 otherwise
1068 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
1073 if (strncmp(p, "nand", 4) == 0) {
1074 *dev_type = MTD_DEV_TYPE_NAND;
1076 } else if (strncmp(p, "nor", 3) == 0) {
1077 *dev_type = MTD_DEV_TYPE_NOR;
1080 printf("incorrect device type in %s\n", id);
1085 printf("incorrect device number in %s\n", id);
1089 *dev_num = simple_strtoul(p, (char **)&p, 0);
1095 #ifdef CONFIG_JFFS2_CMDLINE
1097 * Process all devices and generate corresponding mtdparts string describing
1098 * all partitions on all devices.
1100 * @param buf output buffer holding generated mtdparts string (output)
1101 * @param buflen buffer size
1102 * @return 0 on success, 1 otherwise
1104 static int generate_mtdparts(char *buf, u32 buflen)
1106 struct list_head *pentry, *dentry;
1107 struct mtd_device *dev;
1108 struct part_info *part, *prev_part;
1111 u32 size, offset, len, part_cnt;
1112 u32 maxlen = buflen - 1;
1114 DEBUGF("--- generate_mtdparts ---\n");
1116 if (list_empty(&devices)) {
1121 sprintf(p, "mtdparts=");
1124 list_for_each(dentry, &devices) {
1125 dev = list_entry(dentry, struct mtd_device, link);
1128 len = strlen(dev->id->mtd_id) + 1;
1131 memcpy(p, dev->id->mtd_id, len - 1);
1136 /* format partitions */
1139 list_for_each(pentry, &dev->parts) {
1140 part = list_entry(pentry, struct part_info, link);
1142 offset = part->offset;
1145 /* partition size */
1146 memsize_format(tmpbuf, size);
1147 len = strlen(tmpbuf);
1150 memcpy(p, tmpbuf, len);
1155 /* add offset only when there is a gap between
1157 if ((!prev_part && (offset != 0)) ||
1158 (prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
1160 memsize_format(tmpbuf, offset);
1161 len = strlen(tmpbuf) + 1;
1165 memcpy(p, tmpbuf, len - 1);
1170 /* copy name only if user supplied */
1171 if(!part->auto_name) {
1172 len = strlen(part->name) + 2;
1177 memcpy(p, part->name, len - 2);
1184 if (part->mask_flags && MTD_WRITEABLE_CMD) {
1193 /* print ',' separator if there are other partitions
1195 if (dev->num_parts > part_cnt) {
1203 /* print ';' separator if there are other devices following */
1204 if (dentry->next != &devices) {
1212 /* we still have at least one char left, as we decremented maxlen at
1219 last_parts[0] = '\0';
1224 * Call generate_mtdparts to process all devices and generate corresponding
1225 * mtdparts string, save it in mtdparts environment variable.
1227 * @param buf output buffer holding generated mtdparts string (output)
1228 * @param buflen buffer size
1229 * @return 0 on success, 1 otherwise
1231 static int generate_mtdparts_save(char *buf, u32 buflen)
1235 ret = generate_mtdparts(buf, buflen);
1237 if ((buf[0] != '\0') && (ret == 0))
1238 setenv("mtdparts", buf);
1240 setenv("mtdparts", NULL);
1246 * Format and print out a partition list for each device from global device
1249 static void list_partitions(void)
1251 struct list_head *dentry, *pentry;
1252 struct part_info *part;
1253 struct mtd_device *dev;
1256 DEBUGF("\n---list_partitions---\n");
1257 list_for_each(dentry, &devices) {
1258 dev = list_entry(dentry, struct mtd_device, link);
1259 printf("\ndevice %s%d <%s>, # parts = %d\n",
1260 MTD_DEV_TYPE(dev->id->type), dev->id->num,
1261 dev->id->mtd_id, dev->num_parts);
1262 printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
1264 /* list partitions for given device */
1266 list_for_each(pentry, &dev->parts) {
1267 part = list_entry(pentry, struct part_info, link);
1268 printf(" %d: %-22s\t0x%08x\t0x%08x\t%d\n",
1269 part_num, part->name, part->size,
1270 part->offset, part->mask_flags);
1275 if (list_empty(&devices))
1276 printf("no partitions defined\n");
1278 /* current_dev is not NULL only when we have non empty device list */
1280 part = jffs2_part_info(current_dev, current_partnum);
1282 printf("\nactive partition: %s%d,%d - (%s) 0x%08lx @ 0x%08lx\n",
1283 MTD_DEV_TYPE(current_dev->id->type),
1284 current_dev->id->num, current_partnum,
1285 part->name, part->size, part->offset);
1287 printf("could not get current partition info\n\n");
1291 printf("\ndefaults:\n");
1292 printf("mtdids : %s\n", mtdids_default);
1293 printf("mtdparts: %s\n", mtdparts_default);
1297 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1298 * corresponding device and verify partition number.
1300 * @param id string describing device and partition
1301 * @param dev pointer to the requested device (output)
1302 * @param part_num verified partition number (output)
1303 * @param part pointer to requested partition (output)
1304 * @return 0 on success, 1 otherwise
1306 int find_dev_and_part(const char *id, struct mtd_device **dev,
1307 u8 *part_num, struct part_info **part)
1309 u8 type, dnum, pnum;
1312 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
1319 if (id_parse(p, &p, &type, &dnum) != 0)
1322 if ((*p++ != ',') || (*p == '\0')) {
1323 printf("no partition number specified\n");
1326 pnum = simple_strtoul(p, (char **)&p, 0);
1328 printf("unexpected trailing character '%c'\n", *p);
1332 if ((*dev = device_find(type, dnum)) == NULL) {
1333 printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
1337 if ((*part = jffs2_part_info(*dev, pnum)) == NULL) {
1338 printf("no such partition\n");
1349 * Find and delete partition. For partition id format see find_dev_and_part().
1351 * @param id string describing device and partition
1352 * @return 0 on success, 1 otherwise
1354 static int delete_partition(const char *id)
1357 struct mtd_device *dev;
1358 struct part_info *part;
1360 if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
1362 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1363 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
1364 part->name, part->size, part->offset);
1366 if (part_del(dev, part) != 0)
1369 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
1370 printf("generated mtdparts too long, reseting to null\n");
1376 printf("partition %s not found\n", id);
1381 * Accept character string describing mtd partitions and call device_parse()
1382 * for each entry. Add created devices to the global devices list.
1384 * @param mtdparts string specifing mtd partitions
1385 * @return 0 on success, 1 otherwise
1387 static int parse_mtdparts(const char *const mtdparts)
1389 const char *p = mtdparts;
1390 struct mtd_device *dev;
1393 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
1395 /* delete all devices and partitions */
1396 if (devices_init() != 0) {
1397 printf("could not initialise device list\n");
1401 /* re-read 'mtdparts' variable, devices_init may be updating env */
1402 p = getenv("mtdparts");
1404 if (strncmp(p, "mtdparts=", 9) != 0) {
1405 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1410 while (p && (*p != '\0')) {
1412 if ((device_parse(p, &p, &dev) != 0) || (!dev))
1415 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
1416 dev->id->num, dev->id->mtd_id);
1418 /* check if parsed device is already on the list */
1419 if (device_find(dev->id->type, dev->id->num) != NULL) {
1420 printf("device %s%d redefined, please correct mtdparts variable\n",
1421 MTD_DEV_TYPE(dev->id->type), dev->id->num);
1425 list_add_tail(&dev->link, &devices);
1429 device_delall(&devices);
1437 * Parse provided string describing mtdids mapping (see file header for mtdids
1438 * variable format). Allocate memory for each entry and add all found entries
1439 * to the global mtdids list.
1441 * @param ids mapping string
1442 * @return 0 on success, 1 otherwise
1444 static int parse_mtdids(const char *const ids)
1446 const char *p = ids;
1450 struct list_head *entry, *n;
1451 struct mtdids *id_tmp;
1456 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
1458 /* clean global mtdids list */
1459 list_for_each_safe(entry, n, &mtdids) {
1460 id_tmp = list_entry(entry, struct mtdids, link);
1461 DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
1466 INIT_LIST_HEAD(&mtdids);
1468 while(p && (*p != '\0')) {
1471 /* parse 'nor'|'nand'<dev-num> */
1472 if (id_parse(p, &p, &type, &num) != 0)
1476 printf("mtdids: incorrect <dev-num>\n");
1481 /* check if requested device exists */
1482 if (device_validate(type, num, &size) != 0)
1485 /* locate <mtd-id> */
1487 if ((p = strchr(mtd_id, ',')) != NULL) {
1488 mtd_id_len = p - mtd_id + 1;
1491 mtd_id_len = strlen(mtd_id) + 1;
1493 if (mtd_id_len == 0) {
1494 printf("mtdids: no <mtd-id> identifier\n");
1498 /* check if this id is already on the list */
1499 int double_entry = 0;
1500 list_for_each(entry, &mtdids) {
1501 id_tmp = list_entry(entry, struct mtdids, link);
1502 if ((id_tmp->type == type) && (id_tmp->num == num)) {
1508 printf("device id %s%d redefined, please correct mtdids variable\n",
1509 MTD_DEV_TYPE(type), num);
1513 /* allocate mtdids structure */
1514 if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
1515 printf("out of memory\n");
1518 memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
1522 id->mtd_id = (char *)(id + 1);
1523 strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
1524 id->mtd_id[mtd_id_len - 1] = '\0';
1525 INIT_LIST_HEAD(&id->link);
1527 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1528 MTD_DEV_TYPE(id->type), id->num,
1529 id->size, id->mtd_id);
1531 list_add_tail(&id->link, &mtdids);
1535 /* clean mtdids list and free allocated memory */
1536 list_for_each_safe(entry, n, &mtdids) {
1537 id_tmp = list_entry(entry, struct mtdids, link);
1548 * Parse and initialize global mtdids mapping and create global
1549 * device/partition list.
1551 * @return 0 on success, 1 otherwise
1553 int mtdparts_init(void)
1555 static int initialized = 0;
1556 const char *ids, *parts;
1557 const char *current_partition;
1559 char tmp_ep[PARTITION_MAXLEN];
1561 DEBUGF("\n---mtdparts_init---\n");
1563 INIT_LIST_HEAD(&mtdids);
1564 INIT_LIST_HEAD(&devices);
1565 memset(last_ids, 0, MTDIDS_MAXLEN);
1566 memset(last_parts, 0, MTDPARTS_MAXLEN);
1567 memset(last_partition, 0, PARTITION_MAXLEN);
1572 ids = getenv("mtdids");
1573 parts = getenv("mtdparts");
1574 current_partition = getenv("partition");
1576 /* save it for later parsing, cannot rely on current partition pointer
1577 * as 'partition' variable may be updated during init */
1579 if (current_partition)
1580 strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
1582 DEBUGF("last_ids : %s\n", last_ids);
1583 DEBUGF("env_ids : %s\n", ids);
1584 DEBUGF("last_parts: %s\n", last_parts);
1585 DEBUGF("env_parts : %s\n\n", parts);
1587 DEBUGF("last_partition : %s\n", last_partition);
1588 DEBUGF("env_partition : %s\n", current_partition);
1590 /* if mtdids varible is empty try to use defaults */
1592 if (mtdids_default) {
1593 DEBUGF("mtdids variable not defined, using default\n");
1594 ids = mtdids_default;
1595 setenv("mtdids", (char *)ids);
1597 printf("mtdids not defined, no default present\n");
1601 if (strlen(ids) > MTDIDS_MAXLEN - 1) {
1602 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
1606 /* do no try to use defaults when mtdparts variable is not defined,
1607 * just check the length */
1609 printf("mtdparts variable not set, see 'help mtdparts'\n");
1611 if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
1612 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
1616 /* check if we have already parsed those mtdids */
1617 if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
1622 if (parse_mtdids(ids) != 0) {
1627 /* ok it's good, save new ids */
1628 strncpy(last_ids, ids, MTDIDS_MAXLEN);
1631 /* parse partitions if either mtdparts or mtdids were updated */
1632 if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
1633 if (parse_mtdparts(parts) != 0)
1636 if (list_empty(&devices)) {
1637 printf("mtdparts_init: no valid partitions\n");
1641 /* ok it's good, save new parts */
1642 strncpy(last_parts, parts, MTDPARTS_MAXLEN);
1644 /* reset first partition from first dev from the list as current */
1645 current_dev = list_entry(devices.next, struct mtd_device, link);
1646 current_partnum = 0;
1649 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1650 MTD_DEV_TYPE(current_dev->id->type),
1651 current_dev->id->num, current_partnum);
1654 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1655 if (!parts && (last_parts[0] != '\0'))
1656 return devices_init();
1658 /* do not process current partition if mtdparts variable is null */
1662 /* is current partition set in environment? if so, use it */
1663 if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
1664 struct part_info *p;
1665 struct mtd_device *cdev;
1668 DEBUGF("--- getting current partition: %s\n", tmp_ep);
1670 if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
1672 current_partnum = pnum;
1675 } else if (getenv("partition") == NULL) {
1676 DEBUGF("no partition variable set, setting...\n");
1682 #else /* #ifdef CONFIG_JFFS2_CMDLINE */
1684 * 'Static' version of command line mtdparts_init() routine. Single partition on
1685 * a single device configuration.
1689 * Parse and initialize global mtdids mapping and create global
1690 * device/partition list.
1692 * @return 0 on success, 1 otherwise
1694 int mtdparts_init(void)
1696 static int initialized = 0;
1700 DEBUGF("\n---mtdparts_init---\n");
1703 struct part_info *part;
1706 current_dev = (struct mtd_device *)
1707 malloc(sizeof(struct mtd_device) +
1708 sizeof(struct part_info) +
1709 sizeof(struct mtdids));
1711 printf("out of memory\n");
1714 memset(current_dev, 0, sizeof(struct mtd_device) +
1715 sizeof(struct part_info) + sizeof(struct mtdids));
1717 id = (struct mtdids *)(current_dev + 1);
1718 part = (struct part_info *)(id + 1);
1721 id->mtd_id = "single part";
1723 #if defined(CONFIG_JFFS2_DEV)
1724 dev_name = CONFIG_JFFS2_DEV;
1729 if ((id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
1730 (device_validate(id->type, id->num, &size) != 0)) {
1731 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
1736 INIT_LIST_HEAD(&id->link);
1738 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1739 id->type, id->num, id->size, id->mtd_id);
1742 part->name = "static";
1743 part->auto_name = 0;
1745 #if defined(CONFIG_JFFS2_PART_SIZE)
1746 part->size = CONFIG_JFFS2_PART_SIZE;
1748 part->size = SIZE_REMAINING;
1751 #if defined(CONFIG_JFFS2_PART_OFFSET)
1752 part->offset = CONFIG_JFFS2_PART_OFFSET;
1754 part->offset = 0x00000000;
1757 part->dev = current_dev;
1758 INIT_LIST_HEAD(&part->link);
1760 /* recalculate size if needed */
1761 if (part->size == SIZE_REMAINING)
1762 part->size = id->size - part->offset;
1764 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1765 part->name, part->size, part->offset);
1768 current_dev->id = id;
1769 INIT_LIST_HEAD(¤t_dev->link);
1770 current_dev->num_parts = 1;
1771 INIT_LIST_HEAD(¤t_dev->parts);
1772 list_add(&part->link, ¤t_dev->parts);
1777 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1780 * Return pointer to the partition of a requested number from a requested
1783 * @param dev device that is to be searched for a partition
1784 * @param part_num requested partition number
1785 * @return pointer to the part_info, NULL otherwise
1787 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
1789 struct list_head *entry;
1790 struct part_info *part;
1796 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1797 part_num, MTD_DEV_TYPE(dev->id->type),
1798 dev->id->num, dev->id->mtd_id);
1800 if (part_num >= dev->num_parts) {
1801 printf("invalid partition number %d for device %s%d (%s)\n",
1802 part_num, MTD_DEV_TYPE(dev->id->type),
1803 dev->id->num, dev->id->mtd_id);
1807 /* locate partition number, return it */
1809 list_for_each(entry, &dev->parts) {
1810 part = list_entry(entry, struct part_info, link);
1812 if (part_num == num++) {
1820 /***************************************************/
1821 /* U-boot commands */
1822 /***************************************************/
1825 * Routine implementing fsload u-boot command. This routine tries to load
1826 * a requested file from jffs2/cramfs filesystem on a current partition.
1828 * @param cmdtp command internal data
1829 * @param flag command flag
1830 * @param argc number of arguments supplied to the command
1831 * @param argv arguments list
1832 * @return 0 on success, 1 otherwise
1834 int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1839 struct part_info *part;
1840 ulong offset = load_addr;
1842 /* pre-set Boot file name */
1843 if ((filename = getenv("bootfile")) == NULL) {
1844 filename = "uImage";
1851 offset = simple_strtoul(argv[1], NULL, 16);
1856 /* make sure we are in sync with env variables */
1857 if (mtdparts_init() !=0)
1860 if ((part = jffs2_part_info(current_dev, current_partnum))){
1862 /* check partition type for cramfs */
1863 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1864 printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
1866 if (cramfs_check(part)) {
1867 size = cramfs_load ((char *) offset, part, filename);
1869 /* if this is not cramfs assume jffs2 */
1870 size = jffs2_1pass_load((char *)offset, part, filename);
1875 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
1876 fsname, size, offset);
1877 sprintf(buf, "%x", size);
1878 setenv("filesize", buf);
1880 printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
1889 * Routine implementing u-boot ls command which lists content of a given
1890 * directory on a current partition.
1892 * @param cmdtp command internal data
1893 * @param flag command flag
1894 * @param argc number of arguments supplied to the command
1895 * @param argv arguments list
1896 * @return 0 on success, 1 otherwise
1898 int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1900 char *filename = "/";
1902 struct part_info *part;
1907 /* make sure we are in sync with env variables */
1908 if (mtdparts_init() !=0)
1911 if ((part = jffs2_part_info(current_dev, current_partnum))){
1913 /* check partition type for cramfs */
1914 if (cramfs_check(part)) {
1915 ret = cramfs_ls (part, filename);
1917 /* if this is not cramfs assume jffs2 */
1918 ret = jffs2_1pass_ls(part, filename);
1927 * Routine implementing u-boot fsinfo command. This routine prints out
1928 * miscellaneous filesystem informations/statistics.
1930 * @param cmdtp command internal data
1931 * @param flag command flag
1932 * @param argc number of arguments supplied to the command
1933 * @param argv arguments list
1934 * @return 0 on success, 1 otherwise
1936 int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1938 struct part_info *part;
1942 /* make sure we are in sync with env variables */
1943 if (mtdparts_init() !=0)
1946 if ((part = jffs2_part_info(current_dev, current_partnum))){
1948 /* check partition type for cramfs */
1949 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1950 printf("### filesystem type is %s\n", fsname);
1952 if (cramfs_check(part)) {
1953 ret = cramfs_info (part);
1955 /* if this is not cramfs assume jffs2 */
1956 ret = jffs2_1pass_info(part);
1964 /* command line only */
1965 #ifdef CONFIG_JFFS2_CMDLINE
1967 * Routine implementing u-boot chpart command. Sets new current partition based
1968 * on the user supplied partition id. For partition id format see find_dev_and_part().
1970 * @param cmdtp command internal data
1971 * @param flag command flag
1972 * @param argc number of arguments supplied to the command
1973 * @param argv arguments list
1974 * @return 0 on success, 1 otherwise
1976 int do_jffs2_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1978 /* command line only */
1979 struct mtd_device *dev;
1980 struct part_info *part;
1983 if (mtdparts_init() !=0)
1987 printf("no partition id specified\n");
1991 if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
1995 current_partnum = pnum;
1998 printf("partition changed to %s%d,%d\n",
1999 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
2005 * Routine implementing u-boot mtdparts command. Initialize/update default global
2006 * partition list and process user partition request (list, add, del).
2008 * @param cmdtp command internal data
2009 * @param flag command flag
2010 * @param argc number of arguments supplied to the command
2011 * @param argv arguments list
2012 * @return 0 on success, 1 otherwise
2014 int do_jffs2_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2017 if (strcmp(argv[1], "default") == 0) {
2018 setenv("mtdids", (char *)mtdids_default);
2019 setenv("mtdparts", (char *)mtdparts_default);
2020 setenv("partition", NULL);
2024 } else if (strcmp(argv[1], "delall") == 0) {
2025 /* this may be the first run, initialize lists if needed */
2028 setenv("mtdparts", NULL);
2030 /* devices_init() calls current_save() */
2031 return devices_init();
2035 /* make sure we are in sync with env variables */
2036 if (mtdparts_init() != 0)
2044 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2045 if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
2046 #define PART_ADD_DESC_MAXLEN 64
2047 char tmpbuf[PART_ADD_DESC_MAXLEN];
2049 struct mtd_device *dev;
2050 struct mtd_device *dev_tmp;
2052 struct part_info *p;
2054 if (id_parse(argv[2], NULL, &type, &num) != 0)
2057 if ((id = id_find(type, num)) == NULL) {
2058 printf("no such device %s defined in mtdids variable\n", argv[2]);
2062 len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
2063 len += strlen(argv[3]); /* size@offset */
2064 len += strlen(argv[4]) + 2; /* '(' name ')' */
2065 if (argv[5] && (strlen(argv[5]) == 2))
2066 len += 2; /* 'ro' */
2068 if (len >= PART_ADD_DESC_MAXLEN) {
2069 printf("too long partition description\n");
2072 sprintf(tmpbuf, "%s:%s(%s)%s",
2073 id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
2074 DEBUGF("add tmpbuf: %s\n", tmpbuf);
2076 if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
2079 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
2080 dev->id->num, dev->id->mtd_id);
2082 if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
2085 /* merge new partition with existing ones*/
2086 p = list_entry(dev->parts.next, struct part_info, link);
2087 if (part_add(dev_tmp, p) != 0) {
2093 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
2094 printf("generated mtdparts too long, reseting to null\n");
2101 /* mtdparts del part-id */
2102 if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
2103 DEBUGF("del: part-id = %s\n", argv[2]);
2105 return delete_partition(argv[2]);
2108 printf ("Usage:\n%s\n", cmdtp->usage);
2111 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2113 /***************************************************/
2115 fsload, 3, 0, do_jffs2_fsload,
2116 "fsload\t- load binary file from a filesystem image\n",
2117 "[ off ] [ filename ]\n"
2118 " - load binary file from flash bank\n"
2119 " with offset 'off'\n"
2122 ls, 2, 1, do_jffs2_ls,
2123 "ls\t- list files in a directory (default /)\n",
2125 " - list files in a directory.\n"
2129 fsinfo, 1, 1, do_jffs2_fsinfo,
2130 "fsinfo\t- print information about filesystems\n",
2131 " - print information about filesystems\n"
2134 #ifdef CONFIG_JFFS2_CMDLINE
2136 chpart, 2, 0, do_jffs2_chpart,
2137 "chpart\t- change active partition\n",
2139 " - change active partition (e.g. part-id = nand0,1)\n"
2143 mtdparts, 6, 0, do_jffs2_mtdparts,
2144 "mtdparts- define flash/nand partitions\n",
2146 " - list partition table\n"
2148 " - delete all partitions\n"
2149 "mtdparts del part-id\n"
2150 " - delete partition (e.g. part-id = nand0,1)\n"
2151 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2152 " - add partition\n"
2153 "mtdparts default\n"
2154 " - reset partition table to defaults\n\n"
2156 "this command uses three environment variables:\n\n"
2157 "'partition' - keeps current partition identifier\n\n"
2158 "partition := <part-id>\n"
2159 "<part-id> := <dev-id>,part_num\n\n"
2160 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2161 "mtdids=<idmap>[,<idmap>,...]\n\n"
2162 "<idmap> := <dev-id>=<mtd-id>\n"
2163 "<dev-id> := 'nand'|'nor'<dev-num>\n"
2164 "<dev-num> := mtd device number, 0...\n"
2165 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2166 "'mtdparts' - partition list\n\n"
2167 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2168 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2169 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2170 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2171 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2172 "<offset> := partition start offset within the device\n"
2173 "<name> := '(' NAME ')'\n"
2174 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2176 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2178 /***************************************************/
2180 #endif /* CFG_CMD_JFFS2 */