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/list.h>
95 #include <linux/ctype.h>
96 #include <cramfs/cramfs_fs.h>
98 #if defined(CONFIG_CMD_NAND)
99 #ifdef CFG_NAND_LEGACY
100 #include <linux/mtd/nand_legacy.h>
101 #else /* !CFG_NAND_LEGACY */
102 #include <linux/mtd/nand.h>
104 #endif /* !CFG_NAND_LEGACY */
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 #if defined(CONFIG_CMD_CRAMFS)
171 extern int cramfs_check (struct part_info *info);
172 extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
173 extern int cramfs_ls (struct part_info *info, char *filename);
174 extern int cramfs_info (struct part_info *info);
176 /* defining empty macros for function names is ugly but avoids ifdef clutter
177 * all over the code */
178 #define cramfs_check(x) (0)
179 #define cramfs_load(x,y,z) (-1)
180 #define cramfs_ls(x,y) (0)
181 #define cramfs_info(x) (0)
184 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num);
186 /* command line only routines */
187 #ifdef CONFIG_JFFS2_CMDLINE
189 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
190 static int device_del(struct mtd_device *dev);
193 * Parses a string into a number. The number stored at ptr is
194 * potentially suffixed with K (for kilobytes, or 1024 bytes),
195 * M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
196 * 1073741824). If the number is suffixed with K, M, or G, then
197 * the return value is the number multiplied by one kilobyte, one
198 * megabyte, or one gigabyte, respectively.
200 * @param ptr where parse begins
201 * @param retptr output pointer to next char after parse completes (output)
202 * @return resulting unsigned int
204 static unsigned long memsize_parse (const char *const ptr, const char **retptr)
206 unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
227 * Format string describing supplied size. This routine does the opposite job
228 * to memsize_parse(). Size in bytes is converted to string and if possible
229 * shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
231 * Note, that this routine does not check for buffer overflow, it's the caller
232 * who must assure enough space.
234 * @param buf output buffer
235 * @param size size to be converted to string
237 static void memsize_format(char *buf, u32 size)
239 #define SIZE_GB ((u32)1024*1024*1024)
240 #define SIZE_MB ((u32)1024*1024)
241 #define SIZE_KB ((u32)1024)
243 if ((size % SIZE_GB) == 0)
244 sprintf(buf, "%lug", size/SIZE_GB);
245 else if ((size % SIZE_MB) == 0)
246 sprintf(buf, "%lum", size/SIZE_MB);
247 else if (size % SIZE_KB == 0)
248 sprintf(buf, "%luk", size/SIZE_KB);
250 sprintf(buf, "%lu", size);
254 * This routine does global indexing of all partitions. Resulting index for
255 * current partition is saved in 'mtddevnum'. Current partition name in
258 static void index_partitions(void)
262 struct part_info *part;
263 struct list_head *dentry;
264 struct mtd_device *dev;
266 DEBUGF("--- index partitions ---\n");
270 list_for_each(dentry, &devices) {
271 dev = list_entry(dentry, struct mtd_device, link);
272 if (dev == current_dev) {
273 mtddevnum += current_partnum;
274 sprintf(buf, "%d", mtddevnum);
275 setenv("mtddevnum", buf);
278 mtddevnum += dev->num_parts;
281 part = jffs2_part_info(current_dev, current_partnum);
282 setenv("mtddevname", part->name);
284 DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
286 setenv("mtddevnum", NULL);
287 setenv("mtddevname", NULL);
289 DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
294 * Save current device and partition in environment variable 'partition'.
296 static void current_save(void)
300 DEBUGF("--- current_save ---\n");
303 sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_dev->id->type),
304 current_dev->id->num, current_partnum);
306 setenv("partition", buf);
307 strncpy(last_partition, buf, 16);
309 DEBUGF("=> partition %s\n", buf);
311 setenv("partition", NULL);
312 last_partition[0] = '\0';
314 DEBUGF("=> partition NULL\n");
320 * Performs sanity check for supplied NOR flash partition. Table of existing
321 * NOR flash devices is searched and partition device is located. Alignment
322 * with the granularity of NOR flash sectors is verified.
324 * @param id of the parent device
325 * @param part partition to validate
326 * @return 0 if partition is valid, 1 otherwise
328 static int part_validate_nor(struct mtdids *id, struct part_info *part)
330 #if defined(CONFIG_CMD_FLASH)
331 /* info for FLASH chips */
332 extern flash_info_t flash_info[];
338 flash = &flash_info[id->num];
341 for (i = 0; i < flash->sector_count; i++) {
342 if ((flash->start[i] - flash->start[0]) == part->offset) {
347 if (offset_aligned == 0) {
348 printf("%s%d: partition (%s) start offset alignment incorrect\n",
349 MTD_DEV_TYPE(id->type), id->num, part->name);
353 end_offset = part->offset + part->size;
354 for (i = 0; i < flash->sector_count; i++) {
355 if ((flash->start[i] - flash->start[0]) == end_offset)
359 if (flash->size == end_offset)
362 printf("%s%d: partition (%s) size alignment incorrect\n",
363 MTD_DEV_TYPE(id->type), id->num, part->name);
369 * Performs sanity check for supplied NAND flash partition. Table of existing
370 * NAND flash devices is searched and partition device is located. Alignment
371 * with the granularity of nand erasesize is verified.
373 * @param id of the parent device
374 * @param part partition to validate
375 * @return 0 if partition is valid, 1 otherwise
377 static int part_validate_nand(struct mtdids *id, struct part_info *part)
379 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
380 /* info for NAND chips */
383 nand = &nand_info[id->num];
385 if ((unsigned long)(part->offset) % nand->erasesize) {
386 printf("%s%d: partition (%s) start offset alignment incorrect\n",
387 MTD_DEV_TYPE(id->type), id->num, part->name);
391 if (part->size % nand->erasesize) {
392 printf("%s%d: partition (%s) size alignment incorrect\n",
393 MTD_DEV_TYPE(id->type), id->num, part->name);
404 * Performs sanity check for supplied partition. Offset and size are verified
405 * to be within valid range. Partition type is checked and either
406 * parts_validate_nor() or parts_validate_nand() is called with the argument
409 * @param id of the parent device
410 * @param part partition to validate
411 * @return 0 if partition is valid, 1 otherwise
413 static int part_validate(struct mtdids *id, struct part_info *part)
415 if (part->size == SIZE_REMAINING)
416 part->size = id->size - part->offset;
418 if (part->offset > id->size) {
419 printf("%s: offset %08lx beyond flash size %08lx\n",
420 id->mtd_id, part->offset, id->size);
424 if ((part->offset + part->size) <= part->offset) {
425 printf("%s%d: partition (%s) size too big\n",
426 MTD_DEV_TYPE(id->type), id->num, part->name);
430 if (part->offset + part->size > id->size) {
431 printf("%s: partitioning exceeds flash size\n", id->mtd_id);
435 if (id->type == MTD_DEV_TYPE_NAND)
436 return part_validate_nand(id, part);
437 else if (id->type == MTD_DEV_TYPE_NOR)
438 return part_validate_nor(id, part);
440 DEBUGF("part_validate: invalid dev type\n");
446 * Delete selected partition from the partion list of the specified device.
448 * @param dev device to delete partition from
449 * @param part partition to delete
450 * @return 0 on success, 1 otherwise
452 static int part_del(struct mtd_device *dev, struct part_info *part)
454 u8 current_save_needed = 0;
456 /* if there is only one partition, remove whole device */
457 if (dev->num_parts == 1)
458 return device_del(dev);
460 /* otherwise just delete this partition */
462 if (dev == current_dev) {
463 /* we are modyfing partitions for the current device,
465 struct part_info *curr_pi;
466 curr_pi = jffs2_part_info(current_dev, current_partnum);
469 if (curr_pi == part) {
470 printf("current partition deleted, resetting current to 0\n");
472 } else if (part->offset <= curr_pi->offset) {
475 current_save_needed = 1;
479 #ifdef CFG_NAND_LEGACY
480 jffs2_free_cache(part);
482 list_del(&part->link);
486 if (current_save_needed > 0)
495 * Delete all partitions from parts head list, free memory.
497 * @param head list of partitions to delete
499 static void part_delall(struct list_head *head)
501 struct list_head *entry, *n;
502 struct part_info *part_tmp;
504 /* clean tmp_list and free allocated memory */
505 list_for_each_safe(entry, n, head) {
506 part_tmp = list_entry(entry, struct part_info, link);
508 #ifdef CFG_NAND_LEGACY
509 jffs2_free_cache(part_tmp);
517 * Add new partition to the supplied partition list. Make sure partitions are
518 * sorted by offset in ascending order.
520 * @param head list this partition is to be added to
521 * @param new partition to be added
523 static int part_sort_add(struct mtd_device *dev, struct part_info *part)
525 struct list_head *entry;
526 struct part_info *new_pi, *curr_pi;
528 /* link partition to parrent dev */
531 if (list_empty(&dev->parts)) {
532 DEBUGF("part_sort_add: list empty\n");
533 list_add(&part->link, &dev->parts);
539 new_pi = list_entry(&part->link, struct part_info, link);
541 /* get current partition info if we are updating current device */
543 if (dev == current_dev)
544 curr_pi = jffs2_part_info(current_dev, current_partnum);
546 list_for_each(entry, &dev->parts) {
547 struct part_info *pi;
549 pi = list_entry(entry, struct part_info, link);
551 /* be compliant with kernel cmdline, allow only one partition at offset zero */
552 if ((new_pi->offset == pi->offset) && (pi->offset == 0)) {
553 printf("cannot add second partition at offset 0\n");
557 if (new_pi->offset <= pi->offset) {
558 list_add_tail(&part->link, entry);
561 if (curr_pi && (pi->offset <= curr_pi->offset)) {
562 /* we are modyfing partitions for the current
563 * device, update current */
573 list_add_tail(&part->link, &dev->parts);
580 * Add provided partition to the partition list of a given device.
582 * @param dev device to which partition is added
583 * @param part partition to be added
584 * @return 0 on success, 1 otherwise
586 static int part_add(struct mtd_device *dev, struct part_info *part)
588 /* verify alignment and size */
589 if (part_validate(dev->id, part) != 0)
592 /* partition is ok, add it to the list */
593 if (part_sort_add(dev, part) != 0)
600 * Parse one partition definition, allocate memory and return pointer to this
601 * location in retpart.
603 * @param partdef pointer to the partition definition string i.e. <part-def>
604 * @param ret output pointer to next char after parse completes (output)
605 * @param retpart pointer to the allocated partition (output)
606 * @return 0 on success, 1 otherwise
608 static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
610 struct part_info *part;
612 unsigned long offset;
615 unsigned int mask_flags;
622 /* fetch the partition size */
624 /* assign all remaining space to this partition */
625 DEBUGF("'-': remaining size assigned\n");
626 size = SIZE_REMAINING;
629 size = memsize_parse(p, &p);
630 if (size < MIN_PART_SIZE) {
631 printf("partition size too small (%lx)\n", size);
636 /* check for offset */
637 offset = OFFSET_NOT_SPECIFIED;
640 offset = memsize_parse(p, &p);
643 /* now look for the name */
646 if ((p = strchr(name, ')')) == NULL) {
647 printf("no closing ) found in partition name\n");
650 name_len = p - name + 1;
651 if ((name_len - 1) == 0) {
652 printf("empty partition name\n");
657 /* 0x00000000@0x00000000 */
662 /* test for options */
664 if (strncmp(p, "ro", 2) == 0) {
665 mask_flags |= MTD_WRITEABLE_CMD;
669 /* check for next partition definition */
671 if (size == SIZE_REMAINING) {
673 printf("no partitions allowed after a fill-up partition\n");
677 } else if ((*p == ';') || (*p == '\0')) {
680 printf("unexpected character '%c' at the end of partition\n", *p);
685 /* allocate memory */
686 part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
688 printf("out of memory\n");
691 memset(part, 0, sizeof(struct part_info) + name_len);
693 part->offset = offset;
694 part->mask_flags = mask_flags;
695 part->name = (char *)(part + 1);
698 /* copy user provided name */
699 strncpy(part->name, name, name_len - 1);
702 /* auto generated name in form of size@offset */
703 sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
707 part->name[name_len - 1] = '\0';
708 INIT_LIST_HEAD(&part->link);
710 DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
711 part->name, part->size,
712 part->offset, part->mask_flags);
717 #endif/* #ifdef CONFIG_JFFS2_CMDLINE */
720 * Check device number to be within valid range for given device type.
722 * @param dev device to validate
723 * @return 0 if device is valid, 1 otherwise
725 static int device_validate(u8 type, u8 num, u32 *size)
727 if (type == MTD_DEV_TYPE_NOR) {
728 #if defined(CONFIG_CMD_FLASH)
729 if (num < CFG_MAX_FLASH_BANKS) {
730 extern flash_info_t flash_info[];
731 *size = flash_info[num].size;
736 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
737 MTD_DEV_TYPE(type), num, CFG_MAX_FLASH_BANKS - 1);
739 printf("support for FLASH devices not present\n");
741 } else if (type == MTD_DEV_TYPE_NAND) {
742 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
743 if (num < CFG_MAX_NAND_DEVICE) {
744 #ifndef CFG_NAND_LEGACY
745 *size = nand_info[num].size;
747 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
748 *size = nand_dev_desc[num].totlen;
753 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
754 MTD_DEV_TYPE(type), num, CFG_MAX_NAND_DEVICE - 1);
756 printf("support for NAND devices not present\n");
763 #ifdef CONFIG_JFFS2_CMDLINE
765 * Delete all mtd devices from a supplied devices list, free memory allocated for
766 * each device and delete all device partitions.
768 * @return 0 on success, 1 otherwise
770 static int device_delall(struct list_head *head)
772 struct list_head *entry, *n;
773 struct mtd_device *dev_tmp;
775 /* clean devices list */
776 list_for_each_safe(entry, n, head) {
777 dev_tmp = list_entry(entry, struct mtd_device, link);
779 part_delall(&dev_tmp->parts);
782 INIT_LIST_HEAD(&devices);
788 * If provided device exists it's partitions are deleted, device is removed
789 * from device list and device memory is freed.
791 * @param dev device to be deleted
792 * @return 0 on success, 1 otherwise
794 static int device_del(struct mtd_device *dev)
796 part_delall(&dev->parts);
797 list_del(&dev->link);
800 if (dev == current_dev) {
801 /* we just deleted current device */
802 if (list_empty(&devices)) {
805 /* reset first partition from first dev from the
806 * devices list as current */
807 current_dev = list_entry(devices.next, struct mtd_device, link);
819 * Search global device list and return pointer to the device of type and num
822 * @param type device type
823 * @param num device number
824 * @return NULL if requested device does not exist
826 static struct mtd_device* device_find(u8 type, u8 num)
828 struct list_head *entry;
829 struct mtd_device *dev_tmp;
831 list_for_each(entry, &devices) {
832 dev_tmp = list_entry(entry, struct mtd_device, link);
834 if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
842 * Add specified device to the global device list.
844 * @param dev device to be added
846 static void device_add(struct mtd_device *dev)
848 u8 current_save_needed = 0;
850 if (list_empty(&devices)) {
853 current_save_needed = 1;
856 list_add_tail(&dev->link, &devices);
858 if (current_save_needed > 0)
865 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
866 * return pointer to the device structure.
868 * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
869 * @param ret output pointer to next char after parse completes (output)
870 * @param retdev pointer to the allocated device (output)
871 * @return 0 on success, 1 otherwise
873 static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
875 struct mtd_device *dev;
876 struct part_info *part;
879 unsigned int mtd_id_len;
880 const char *p, *pend;
882 struct list_head *entry, *n;
891 DEBUGF("===device_parse===\n");
895 if (!(p = strchr(mtd_id, ':'))) {
896 printf("no <mtd-id> identifier\n");
899 mtd_id_len = p - mtd_id + 1;
902 /* verify if we have a valid device specified */
903 if ((id = id_find_by_mtd_id(mtd_id, mtd_id_len - 1)) == NULL) {
904 printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
908 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
909 id->type, MTD_DEV_TYPE(id->type),
910 id->num, id->mtd_id);
911 pend = strchr(p, ';');
912 DEBUGF("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
915 /* parse partitions */
919 if ((dev = device_find(id->type, id->num)) != NULL) {
920 /* if device already exists start at the end of the last partition */
921 part = list_entry(dev->parts.prev, struct part_info, link);
922 offset = part->offset + part->size;
925 while (p && (*p != '\0') && (*p != ';')) {
927 if ((part_parse(p, &p, &part) != 0) || (!part))
930 /* calculate offset when not specified */
931 if (part->offset == OFFSET_NOT_SPECIFIED)
932 part->offset = offset;
934 offset = part->offset;
936 /* verify alignment and size */
937 if (part_validate(id, part) != 0)
940 offset += part->size;
942 /* partition is ok, add it to the list */
943 list_add_tail(&part->link, &tmp_list);
948 part_delall(&tmp_list);
952 if (num_parts == 0) {
953 printf("no partitions for device %s%d (%s)\n",
954 MTD_DEV_TYPE(id->type), id->num, id->mtd_id);
958 DEBUGF("\ntotal partitions: %d\n", num_parts);
960 /* check for next device presence */
964 } else if (*p == '\0') {
967 printf("unexpected character '%c' at the end of device\n", *p);
973 /* allocate memory for mtd_device structure */
974 if ((dev = (struct mtd_device *)malloc(sizeof(struct mtd_device))) == NULL) {
975 printf("out of memory\n");
978 memset(dev, 0, sizeof(struct mtd_device));
980 dev->num_parts = 0; /* part_sort_add increments num_parts */
981 INIT_LIST_HEAD(&dev->parts);
982 INIT_LIST_HEAD(&dev->link);
984 /* move partitions from tmp_list to dev->parts */
985 list_for_each_safe(entry, n, &tmp_list) {
986 part = list_entry(entry, struct part_info, link);
988 if (part_sort_add(dev, part) != 0) {
1001 * Initialize global device list.
1003 * @return 0 on success, 1 otherwise
1005 static int devices_init(void)
1007 last_parts[0] = '\0';
1011 return device_delall(&devices);
1015 * Search global mtdids list and find id of requested type and number.
1017 * @return pointer to the id if it exists, NULL otherwise
1019 static struct mtdids* id_find(u8 type, u8 num)
1021 struct list_head *entry;
1024 list_for_each(entry, &mtdids) {
1025 id = list_entry(entry, struct mtdids, link);
1027 if ((id->type == type) && (id->num == num))
1035 * Search global mtdids list and find id of a requested mtd_id.
1037 * Note: first argument is not null terminated.
1039 * @param mtd_id string containing requested mtd_id
1040 * @param mtd_id_len length of supplied mtd_id
1041 * @return pointer to the id if it exists, NULL otherwise
1043 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
1045 struct list_head *entry;
1048 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1049 mtd_id_len, mtd_id, mtd_id_len);
1051 list_for_each(entry, &mtdids) {
1052 id = list_entry(entry, struct mtdids, link);
1054 DEBUGF("entry: '%s' (len = %d)\n",
1055 id->mtd_id, strlen(id->mtd_id));
1057 if (mtd_id_len != strlen(id->mtd_id))
1059 if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
1065 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1068 * Parse device id string <dev-id> := 'nand'|'nor'<dev-num>, return device
1071 * @param id string describing device id
1072 * @param ret_id output pointer to next char after parse completes (output)
1073 * @param dev_type parsed device type (output)
1074 * @param dev_num parsed device number (output)
1075 * @return 0 on success, 1 otherwise
1077 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
1082 if (strncmp(p, "nand", 4) == 0) {
1083 *dev_type = MTD_DEV_TYPE_NAND;
1085 } else if (strncmp(p, "nor", 3) == 0) {
1086 *dev_type = MTD_DEV_TYPE_NOR;
1089 printf("incorrect device type in %s\n", id);
1094 printf("incorrect device number in %s\n", id);
1098 *dev_num = simple_strtoul(p, (char **)&p, 0);
1104 #ifdef CONFIG_JFFS2_CMDLINE
1106 * Process all devices and generate corresponding mtdparts string describing
1107 * all partitions on all devices.
1109 * @param buf output buffer holding generated mtdparts string (output)
1110 * @param buflen buffer size
1111 * @return 0 on success, 1 otherwise
1113 static int generate_mtdparts(char *buf, u32 buflen)
1115 struct list_head *pentry, *dentry;
1116 struct mtd_device *dev;
1117 struct part_info *part, *prev_part;
1120 u32 size, offset, len, part_cnt;
1121 u32 maxlen = buflen - 1;
1123 DEBUGF("--- generate_mtdparts ---\n");
1125 if (list_empty(&devices)) {
1130 sprintf(p, "mtdparts=");
1133 list_for_each(dentry, &devices) {
1134 dev = list_entry(dentry, struct mtd_device, link);
1137 len = strlen(dev->id->mtd_id) + 1;
1140 memcpy(p, dev->id->mtd_id, len - 1);
1145 /* format partitions */
1148 list_for_each(pentry, &dev->parts) {
1149 part = list_entry(pentry, struct part_info, link);
1151 offset = part->offset;
1154 /* partition size */
1155 memsize_format(tmpbuf, size);
1156 len = strlen(tmpbuf);
1159 memcpy(p, tmpbuf, len);
1164 /* add offset only when there is a gap between
1166 if ((!prev_part && (offset != 0)) ||
1167 (prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
1169 memsize_format(tmpbuf, offset);
1170 len = strlen(tmpbuf) + 1;
1174 memcpy(p, tmpbuf, len - 1);
1179 /* copy name only if user supplied */
1180 if(!part->auto_name) {
1181 len = strlen(part->name) + 2;
1186 memcpy(p, part->name, len - 2);
1193 if (part->mask_flags && MTD_WRITEABLE_CMD) {
1202 /* print ',' separator if there are other partitions
1204 if (dev->num_parts > part_cnt) {
1212 /* print ';' separator if there are other devices following */
1213 if (dentry->next != &devices) {
1221 /* we still have at least one char left, as we decremented maxlen at
1228 last_parts[0] = '\0';
1233 * Call generate_mtdparts to process all devices and generate corresponding
1234 * mtdparts string, save it in mtdparts environment variable.
1236 * @param buf output buffer holding generated mtdparts string (output)
1237 * @param buflen buffer size
1238 * @return 0 on success, 1 otherwise
1240 static int generate_mtdparts_save(char *buf, u32 buflen)
1244 ret = generate_mtdparts(buf, buflen);
1246 if ((buf[0] != '\0') && (ret == 0))
1247 setenv("mtdparts", buf);
1249 setenv("mtdparts", NULL);
1255 * Format and print out a partition list for each device from global device
1258 static void list_partitions(void)
1260 struct list_head *dentry, *pentry;
1261 struct part_info *part;
1262 struct mtd_device *dev;
1265 DEBUGF("\n---list_partitions---\n");
1266 list_for_each(dentry, &devices) {
1267 dev = list_entry(dentry, struct mtd_device, link);
1268 printf("\ndevice %s%d <%s>, # parts = %d\n",
1269 MTD_DEV_TYPE(dev->id->type), dev->id->num,
1270 dev->id->mtd_id, dev->num_parts);
1271 printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
1273 /* list partitions for given device */
1275 list_for_each(pentry, &dev->parts) {
1276 part = list_entry(pentry, struct part_info, link);
1277 printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
1278 part_num, part->name, part->size,
1279 part->offset, part->mask_flags);
1284 if (list_empty(&devices))
1285 printf("no partitions defined\n");
1287 /* current_dev is not NULL only when we have non empty device list */
1289 part = jffs2_part_info(current_dev, current_partnum);
1291 printf("\nactive partition: %s%d,%d - (%s) 0x%08lx @ 0x%08lx\n",
1292 MTD_DEV_TYPE(current_dev->id->type),
1293 current_dev->id->num, current_partnum,
1294 part->name, part->size, part->offset);
1296 printf("could not get current partition info\n\n");
1300 printf("\ndefaults:\n");
1301 printf("mtdids : %s\n", mtdids_default);
1302 printf("mtdparts: %s\n", mtdparts_default);
1306 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1307 * corresponding device and verify partition number.
1309 * @param id string describing device and partition or partition name
1310 * @param dev pointer to the requested device (output)
1311 * @param part_num verified partition number (output)
1312 * @param part pointer to requested partition (output)
1313 * @return 0 on success, 1 otherwise
1315 int find_dev_and_part(const char *id, struct mtd_device **dev,
1316 u8 *part_num, struct part_info **part)
1318 struct list_head *dentry, *pentry;
1319 u8 type, dnum, pnum;
1322 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
1324 list_for_each(dentry, &devices) {
1326 *dev = list_entry(dentry, struct mtd_device, link);
1327 list_for_each(pentry, &(*dev)->parts) {
1328 *part = list_entry(pentry, struct part_info, link);
1329 if (strcmp((*part)->name, id) == 0)
1340 if (id_parse(p, &p, &type, &dnum) != 0)
1343 if ((*p++ != ',') || (*p == '\0')) {
1344 printf("no partition number specified\n");
1347 pnum = simple_strtoul(p, (char **)&p, 0);
1349 printf("unexpected trailing character '%c'\n", *p);
1353 if ((*dev = device_find(type, dnum)) == NULL) {
1354 printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
1358 if ((*part = jffs2_part_info(*dev, pnum)) == NULL) {
1359 printf("no such partition\n");
1370 * Find and delete partition. For partition id format see find_dev_and_part().
1372 * @param id string describing device and partition
1373 * @return 0 on success, 1 otherwise
1375 static int delete_partition(const char *id)
1378 struct mtd_device *dev;
1379 struct part_info *part;
1381 if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
1383 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1384 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
1385 part->name, part->size, part->offset);
1387 if (part_del(dev, part) != 0)
1390 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
1391 printf("generated mtdparts too long, reseting to null\n");
1397 printf("partition %s not found\n", id);
1402 * Accept character string describing mtd partitions and call device_parse()
1403 * for each entry. Add created devices to the global devices list.
1405 * @param mtdparts string specifing mtd partitions
1406 * @return 0 on success, 1 otherwise
1408 static int parse_mtdparts(const char *const mtdparts)
1410 const char *p = mtdparts;
1411 struct mtd_device *dev;
1414 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
1416 /* delete all devices and partitions */
1417 if (devices_init() != 0) {
1418 printf("could not initialise device list\n");
1422 /* re-read 'mtdparts' variable, devices_init may be updating env */
1423 p = getenv("mtdparts");
1425 if (strncmp(p, "mtdparts=", 9) != 0) {
1426 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1431 while (p && (*p != '\0')) {
1433 if ((device_parse(p, &p, &dev) != 0) || (!dev))
1436 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
1437 dev->id->num, dev->id->mtd_id);
1439 /* check if parsed device is already on the list */
1440 if (device_find(dev->id->type, dev->id->num) != NULL) {
1441 printf("device %s%d redefined, please correct mtdparts variable\n",
1442 MTD_DEV_TYPE(dev->id->type), dev->id->num);
1446 list_add_tail(&dev->link, &devices);
1450 device_delall(&devices);
1458 * Parse provided string describing mtdids mapping (see file header for mtdids
1459 * variable format). Allocate memory for each entry and add all found entries
1460 * to the global mtdids list.
1462 * @param ids mapping string
1463 * @return 0 on success, 1 otherwise
1465 static int parse_mtdids(const char *const ids)
1467 const char *p = ids;
1471 struct list_head *entry, *n;
1472 struct mtdids *id_tmp;
1477 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
1479 /* clean global mtdids list */
1480 list_for_each_safe(entry, n, &mtdids) {
1481 id_tmp = list_entry(entry, struct mtdids, link);
1482 DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
1487 INIT_LIST_HEAD(&mtdids);
1489 while(p && (*p != '\0')) {
1492 /* parse 'nor'|'nand'<dev-num> */
1493 if (id_parse(p, &p, &type, &num) != 0)
1497 printf("mtdids: incorrect <dev-num>\n");
1502 /* check if requested device exists */
1503 if (device_validate(type, num, &size) != 0)
1506 /* locate <mtd-id> */
1508 if ((p = strchr(mtd_id, ',')) != NULL) {
1509 mtd_id_len = p - mtd_id + 1;
1512 mtd_id_len = strlen(mtd_id) + 1;
1514 if (mtd_id_len == 0) {
1515 printf("mtdids: no <mtd-id> identifier\n");
1519 /* check if this id is already on the list */
1520 int double_entry = 0;
1521 list_for_each(entry, &mtdids) {
1522 id_tmp = list_entry(entry, struct mtdids, link);
1523 if ((id_tmp->type == type) && (id_tmp->num == num)) {
1529 printf("device id %s%d redefined, please correct mtdids variable\n",
1530 MTD_DEV_TYPE(type), num);
1534 /* allocate mtdids structure */
1535 if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
1536 printf("out of memory\n");
1539 memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
1543 id->mtd_id = (char *)(id + 1);
1544 strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
1545 id->mtd_id[mtd_id_len - 1] = '\0';
1546 INIT_LIST_HEAD(&id->link);
1548 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1549 MTD_DEV_TYPE(id->type), id->num,
1550 id->size, id->mtd_id);
1552 list_add_tail(&id->link, &mtdids);
1556 /* clean mtdids list and free allocated memory */
1557 list_for_each_safe(entry, n, &mtdids) {
1558 id_tmp = list_entry(entry, struct mtdids, link);
1569 * Parse and initialize global mtdids mapping and create global
1570 * device/partition list.
1572 * @return 0 on success, 1 otherwise
1574 int mtdparts_init(void)
1576 static int initialized = 0;
1577 const char *ids, *parts;
1578 const char *current_partition;
1580 char tmp_ep[PARTITION_MAXLEN];
1582 DEBUGF("\n---mtdparts_init---\n");
1584 INIT_LIST_HEAD(&mtdids);
1585 INIT_LIST_HEAD(&devices);
1586 memset(last_ids, 0, MTDIDS_MAXLEN);
1587 memset(last_parts, 0, MTDPARTS_MAXLEN);
1588 memset(last_partition, 0, PARTITION_MAXLEN);
1593 ids = getenv("mtdids");
1594 parts = getenv("mtdparts");
1595 current_partition = getenv("partition");
1597 /* save it for later parsing, cannot rely on current partition pointer
1598 * as 'partition' variable may be updated during init */
1600 if (current_partition)
1601 strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
1603 DEBUGF("last_ids : %s\n", last_ids);
1604 DEBUGF("env_ids : %s\n", ids);
1605 DEBUGF("last_parts: %s\n", last_parts);
1606 DEBUGF("env_parts : %s\n\n", parts);
1608 DEBUGF("last_partition : %s\n", last_partition);
1609 DEBUGF("env_partition : %s\n", current_partition);
1611 /* if mtdids varible is empty try to use defaults */
1613 if (mtdids_default) {
1614 DEBUGF("mtdids variable not defined, using default\n");
1615 ids = mtdids_default;
1616 setenv("mtdids", (char *)ids);
1618 printf("mtdids not defined, no default present\n");
1622 if (strlen(ids) > MTDIDS_MAXLEN - 1) {
1623 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
1627 /* do no try to use defaults when mtdparts variable is not defined,
1628 * just check the length */
1630 printf("mtdparts variable not set, see 'help mtdparts'\n");
1632 if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
1633 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
1637 /* check if we have already parsed those mtdids */
1638 if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
1643 if (parse_mtdids(ids) != 0) {
1648 /* ok it's good, save new ids */
1649 strncpy(last_ids, ids, MTDIDS_MAXLEN);
1652 /* parse partitions if either mtdparts or mtdids were updated */
1653 if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
1654 if (parse_mtdparts(parts) != 0)
1657 if (list_empty(&devices)) {
1658 printf("mtdparts_init: no valid partitions\n");
1662 /* ok it's good, save new parts */
1663 strncpy(last_parts, parts, MTDPARTS_MAXLEN);
1665 /* reset first partition from first dev from the list as current */
1666 current_dev = list_entry(devices.next, struct mtd_device, link);
1667 current_partnum = 0;
1670 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1671 MTD_DEV_TYPE(current_dev->id->type),
1672 current_dev->id->num, current_partnum);
1675 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1676 if (!parts && (last_parts[0] != '\0'))
1677 return devices_init();
1679 /* do not process current partition if mtdparts variable is null */
1683 /* is current partition set in environment? if so, use it */
1684 if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
1685 struct part_info *p;
1686 struct mtd_device *cdev;
1689 DEBUGF("--- getting current partition: %s\n", tmp_ep);
1691 if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
1693 current_partnum = pnum;
1696 } else if (getenv("partition") == NULL) {
1697 DEBUGF("no partition variable set, setting...\n");
1703 #else /* #ifdef CONFIG_JFFS2_CMDLINE */
1705 * 'Static' version of command line mtdparts_init() routine. Single partition on
1706 * a single device configuration.
1710 * Parse and initialize global mtdids mapping and create global
1711 * device/partition list.
1713 * @return 0 on success, 1 otherwise
1715 int mtdparts_init(void)
1717 static int initialized = 0;
1721 DEBUGF("\n---mtdparts_init---\n");
1724 struct part_info *part;
1727 current_dev = (struct mtd_device *)
1728 malloc(sizeof(struct mtd_device) +
1729 sizeof(struct part_info) +
1730 sizeof(struct mtdids));
1732 printf("out of memory\n");
1735 memset(current_dev, 0, sizeof(struct mtd_device) +
1736 sizeof(struct part_info) + sizeof(struct mtdids));
1738 id = (struct mtdids *)(current_dev + 1);
1739 part = (struct part_info *)(id + 1);
1742 id->mtd_id = "single part";
1744 #if defined(CONFIG_JFFS2_DEV)
1745 dev_name = CONFIG_JFFS2_DEV;
1750 if ((id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
1751 (device_validate(id->type, id->num, &size) != 0)) {
1752 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
1757 INIT_LIST_HEAD(&id->link);
1759 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1760 id->type, id->num, id->size, id->mtd_id);
1763 part->name = "static";
1764 part->auto_name = 0;
1766 #if defined(CONFIG_JFFS2_PART_SIZE)
1767 part->size = CONFIG_JFFS2_PART_SIZE;
1769 part->size = SIZE_REMAINING;
1772 #if defined(CONFIG_JFFS2_PART_OFFSET)
1773 part->offset = CONFIG_JFFS2_PART_OFFSET;
1775 part->offset = 0x00000000;
1778 part->dev = current_dev;
1779 INIT_LIST_HEAD(&part->link);
1781 /* recalculate size if needed */
1782 if (part->size == SIZE_REMAINING)
1783 part->size = id->size - part->offset;
1785 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1786 part->name, part->size, part->offset);
1789 current_dev->id = id;
1790 INIT_LIST_HEAD(¤t_dev->link);
1791 current_dev->num_parts = 1;
1792 INIT_LIST_HEAD(¤t_dev->parts);
1793 list_add(&part->link, ¤t_dev->parts);
1798 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1801 * Return pointer to the partition of a requested number from a requested
1804 * @param dev device that is to be searched for a partition
1805 * @param part_num requested partition number
1806 * @return pointer to the part_info, NULL otherwise
1808 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
1810 struct list_head *entry;
1811 struct part_info *part;
1817 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1818 part_num, MTD_DEV_TYPE(dev->id->type),
1819 dev->id->num, dev->id->mtd_id);
1821 if (part_num >= dev->num_parts) {
1822 printf("invalid partition number %d for device %s%d (%s)\n",
1823 part_num, MTD_DEV_TYPE(dev->id->type),
1824 dev->id->num, dev->id->mtd_id);
1828 /* locate partition number, return it */
1830 list_for_each(entry, &dev->parts) {
1831 part = list_entry(entry, struct part_info, link);
1833 if (part_num == num++) {
1841 /***************************************************/
1842 /* U-boot commands */
1843 /***************************************************/
1846 * Routine implementing fsload u-boot command. This routine tries to load
1847 * a requested file from jffs2/cramfs filesystem on a current partition.
1849 * @param cmdtp command internal data
1850 * @param flag command flag
1851 * @param argc number of arguments supplied to the command
1852 * @param argv arguments list
1853 * @return 0 on success, 1 otherwise
1855 int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1860 struct part_info *part;
1861 ulong offset = load_addr;
1863 /* pre-set Boot file name */
1864 if ((filename = getenv("bootfile")) == NULL) {
1865 filename = "uImage";
1872 offset = simple_strtoul(argv[1], NULL, 16);
1877 /* make sure we are in sync with env variables */
1878 if (mtdparts_init() !=0)
1881 if ((part = jffs2_part_info(current_dev, current_partnum))){
1883 /* check partition type for cramfs */
1884 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1885 printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
1887 if (cramfs_check(part)) {
1888 size = cramfs_load ((char *) offset, part, filename);
1890 /* if this is not cramfs assume jffs2 */
1891 size = jffs2_1pass_load((char *)offset, part, filename);
1896 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
1897 fsname, size, offset);
1898 sprintf(buf, "%x", size);
1899 setenv("filesize", buf);
1901 printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
1910 * Routine implementing u-boot ls command which lists content of a given
1911 * directory on a current partition.
1913 * @param cmdtp command internal data
1914 * @param flag command flag
1915 * @param argc number of arguments supplied to the command
1916 * @param argv arguments list
1917 * @return 0 on success, 1 otherwise
1919 int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1921 char *filename = "/";
1923 struct part_info *part;
1928 /* make sure we are in sync with env variables */
1929 if (mtdparts_init() !=0)
1932 if ((part = jffs2_part_info(current_dev, current_partnum))){
1934 /* check partition type for cramfs */
1935 if (cramfs_check(part)) {
1936 ret = cramfs_ls (part, filename);
1938 /* if this is not cramfs assume jffs2 */
1939 ret = jffs2_1pass_ls(part, filename);
1948 * Routine implementing u-boot fsinfo command. This routine prints out
1949 * miscellaneous filesystem informations/statistics.
1951 * @param cmdtp command internal data
1952 * @param flag command flag
1953 * @param argc number of arguments supplied to the command
1954 * @param argv arguments list
1955 * @return 0 on success, 1 otherwise
1957 int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1959 struct part_info *part;
1963 /* make sure we are in sync with env variables */
1964 if (mtdparts_init() !=0)
1967 if ((part = jffs2_part_info(current_dev, current_partnum))){
1969 /* check partition type for cramfs */
1970 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1971 printf("### filesystem type is %s\n", fsname);
1973 if (cramfs_check(part)) {
1974 ret = cramfs_info (part);
1976 /* if this is not cramfs assume jffs2 */
1977 ret = jffs2_1pass_info(part);
1985 /* command line only */
1986 #ifdef CONFIG_JFFS2_CMDLINE
1988 * Routine implementing u-boot chpart command. Sets new current partition based
1989 * on the user supplied partition id. For partition id format see find_dev_and_part().
1991 * @param cmdtp command internal data
1992 * @param flag command flag
1993 * @param argc number of arguments supplied to the command
1994 * @param argv arguments list
1995 * @return 0 on success, 1 otherwise
1997 int do_jffs2_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1999 /* command line only */
2000 struct mtd_device *dev;
2001 struct part_info *part;
2004 if (mtdparts_init() !=0)
2008 printf("no partition id specified\n");
2012 if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
2016 current_partnum = pnum;
2019 printf("partition changed to %s%d,%d\n",
2020 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
2026 * Routine implementing u-boot mtdparts command. Initialize/update default global
2027 * partition list and process user partition request (list, add, del).
2029 * @param cmdtp command internal data
2030 * @param flag command flag
2031 * @param argc number of arguments supplied to the command
2032 * @param argv arguments list
2033 * @return 0 on success, 1 otherwise
2035 int do_jffs2_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2038 if (strcmp(argv[1], "default") == 0) {
2039 setenv("mtdids", (char *)mtdids_default);
2040 setenv("mtdparts", (char *)mtdparts_default);
2041 setenv("partition", NULL);
2045 } else if (strcmp(argv[1], "delall") == 0) {
2046 /* this may be the first run, initialize lists if needed */
2049 setenv("mtdparts", NULL);
2051 /* devices_init() calls current_save() */
2052 return devices_init();
2056 /* make sure we are in sync with env variables */
2057 if (mtdparts_init() != 0)
2065 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2066 if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
2067 #define PART_ADD_DESC_MAXLEN 64
2068 char tmpbuf[PART_ADD_DESC_MAXLEN];
2070 struct mtd_device *dev;
2071 struct mtd_device *dev_tmp;
2073 struct part_info *p;
2075 if (id_parse(argv[2], NULL, &type, &num) != 0)
2078 if ((id = id_find(type, num)) == NULL) {
2079 printf("no such device %s defined in mtdids variable\n", argv[2]);
2083 len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
2084 len += strlen(argv[3]); /* size@offset */
2085 len += strlen(argv[4]) + 2; /* '(' name ')' */
2086 if (argv[5] && (strlen(argv[5]) == 2))
2087 len += 2; /* 'ro' */
2089 if (len >= PART_ADD_DESC_MAXLEN) {
2090 printf("too long partition description\n");
2093 sprintf(tmpbuf, "%s:%s(%s)%s",
2094 id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
2095 DEBUGF("add tmpbuf: %s\n", tmpbuf);
2097 if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
2100 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
2101 dev->id->num, dev->id->mtd_id);
2103 if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
2106 /* merge new partition with existing ones*/
2107 p = list_entry(dev->parts.next, struct part_info, link);
2108 if (part_add(dev_tmp, p) != 0) {
2114 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
2115 printf("generated mtdparts too long, reseting to null\n");
2122 /* mtdparts del part-id */
2123 if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
2124 DEBUGF("del: part-id = %s\n", argv[2]);
2126 return delete_partition(argv[2]);
2129 printf ("Usage:\n%s\n", cmdtp->usage);
2132 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2134 /***************************************************/
2136 fsload, 3, 0, do_jffs2_fsload,
2137 "fsload\t- load binary file from a filesystem image\n",
2138 "[ off ] [ filename ]\n"
2139 " - load binary file from flash bank\n"
2140 " with offset 'off'\n"
2143 ls, 2, 1, do_jffs2_ls,
2144 "ls\t- list files in a directory (default /)\n",
2146 " - list files in a directory.\n"
2150 fsinfo, 1, 1, do_jffs2_fsinfo,
2151 "fsinfo\t- print information about filesystems\n",
2152 " - print information about filesystems\n"
2155 #ifdef CONFIG_JFFS2_CMDLINE
2157 chpart, 2, 0, do_jffs2_chpart,
2158 "chpart\t- change active partition\n",
2160 " - change active partition (e.g. part-id = nand0,1)\n"
2164 mtdparts, 6, 0, do_jffs2_mtdparts,
2165 "mtdparts- define flash/nand partitions\n",
2167 " - list partition table\n"
2169 " - delete all partitions\n"
2170 "mtdparts del part-id\n"
2171 " - delete partition (e.g. part-id = nand0,1)\n"
2172 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2173 " - add partition\n"
2174 "mtdparts default\n"
2175 " - reset partition table to defaults\n\n"
2177 "this command uses three environment variables:\n\n"
2178 "'partition' - keeps current partition identifier\n\n"
2179 "partition := <part-id>\n"
2180 "<part-id> := <dev-id>,part_num\n\n"
2181 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2182 "mtdids=<idmap>[,<idmap>,...]\n\n"
2183 "<idmap> := <dev-id>=<mtd-id>\n"
2184 "<dev-id> := 'nand'|'nor'<dev-num>\n"
2185 "<dev-num> := mtd device number, 0...\n"
2186 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2187 "'mtdparts' - partition list\n\n"
2188 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2189 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2190 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2191 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2192 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2193 "<offset> := partition start offset within the device\n"
2194 "<name> := '(' NAME ')'\n"
2195 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2197 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2199 /***************************************************/