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'|'onenand'<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 CONFIG_NAND_LEGACY
100 #include <linux/mtd/nand_legacy.h>
101 #else /* !CONFIG_NAND_LEGACY */
102 #include <linux/mtd/nand.h>
104 #endif /* !CONFIG_NAND_LEGACY */
107 #if defined(CONFIG_CMD_ONENAND)
108 #include <linux/mtd/mtd.h>
109 #include <linux/mtd/onenand.h>
110 #include <onenand_uboot.h>
113 /* enable/disable debugging messages */
118 # define DEBUGF(fmt, args...) printf(fmt ,##args)
120 # define DEBUGF(fmt, args...)
123 /* special size referring to all the remaining space in a partition */
124 #define SIZE_REMAINING 0xFFFFFFFF
126 /* special offset value, it is used when not provided by user
128 * this value is used temporarily during parsing, later such offests
129 * are recalculated */
130 #define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
132 /* minimum partition size */
133 #define MIN_PART_SIZE 4096
135 /* this flag needs to be set in part_info struct mask_flags
136 * field for read-only partitions */
137 #define MTD_WRITEABLE_CMD 1
139 #ifdef CONFIG_JFFS2_CMDLINE
140 /* default values for mtdids and mtdparts variables */
141 #if defined(MTDIDS_DEFAULT)
142 static const char *const mtdids_default = MTDIDS_DEFAULT;
144 #warning "MTDIDS_DEFAULT not defined!"
145 static const char *const mtdids_default = NULL;
148 #if defined(MTDPARTS_DEFAULT)
149 static const char *const mtdparts_default = MTDPARTS_DEFAULT;
151 #warning "MTDPARTS_DEFAULT not defined!"
152 static const char *const mtdparts_default = NULL;
155 /* copies of last seen 'mtdids', 'mtdparts' and 'partition' env variables */
156 #define MTDIDS_MAXLEN 128
157 #define MTDPARTS_MAXLEN 512
158 #define PARTITION_MAXLEN 16
159 static char last_ids[MTDIDS_MAXLEN];
160 static char last_parts[MTDPARTS_MAXLEN];
161 static char last_partition[PARTITION_MAXLEN];
163 /* low level jffs2 cache cleaning routine */
164 extern void jffs2_free_cache(struct part_info *part);
166 /* mtdids mapping list, filled by parse_ids() */
167 struct list_head mtdids;
169 /* device/partition list, parse_cmdline() parses into here */
170 struct list_head devices;
171 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
173 /* current active device and partition number */
174 static struct mtd_device *current_dev = NULL;
175 static u8 current_partnum = 0;
177 #if defined(CONFIG_CMD_CRAMFS)
178 extern int cramfs_check (struct part_info *info);
179 extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
180 extern int cramfs_ls (struct part_info *info, char *filename);
181 extern int cramfs_info (struct part_info *info);
183 /* defining empty macros for function names is ugly but avoids ifdef clutter
184 * all over the code */
185 #define cramfs_check(x) (0)
186 #define cramfs_load(x,y,z) (-1)
187 #define cramfs_ls(x,y) (0)
188 #define cramfs_info(x) (0)
191 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num);
193 /* command line only routines */
194 #ifdef CONFIG_JFFS2_CMDLINE
196 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
197 static int device_del(struct mtd_device *dev);
200 * Parses a string into a number. The number stored at ptr is
201 * potentially suffixed with K (for kilobytes, or 1024 bytes),
202 * M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
203 * 1073741824). If the number is suffixed with K, M, or G, then
204 * the return value is the number multiplied by one kilobyte, one
205 * megabyte, or one gigabyte, respectively.
207 * @param ptr where parse begins
208 * @param retptr output pointer to next char after parse completes (output)
209 * @return resulting unsigned int
211 static unsigned long memsize_parse (const char *const ptr, const char **retptr)
213 unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
234 * Format string describing supplied size. This routine does the opposite job
235 * to memsize_parse(). Size in bytes is converted to string and if possible
236 * shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
238 * Note, that this routine does not check for buffer overflow, it's the caller
239 * who must assure enough space.
241 * @param buf output buffer
242 * @param size size to be converted to string
244 static void memsize_format(char *buf, u32 size)
246 #define SIZE_GB ((u32)1024*1024*1024)
247 #define SIZE_MB ((u32)1024*1024)
248 #define SIZE_KB ((u32)1024)
250 if ((size % SIZE_GB) == 0)
251 sprintf(buf, "%ug", size/SIZE_GB);
252 else if ((size % SIZE_MB) == 0)
253 sprintf(buf, "%um", size/SIZE_MB);
254 else if (size % SIZE_KB == 0)
255 sprintf(buf, "%uk", size/SIZE_KB);
257 sprintf(buf, "%u", size);
261 * This routine does global indexing of all partitions. Resulting index for
262 * current partition is saved in 'mtddevnum'. Current partition name in
265 static void index_partitions(void)
269 struct part_info *part;
270 struct list_head *dentry;
271 struct mtd_device *dev;
273 DEBUGF("--- index partitions ---\n");
277 list_for_each(dentry, &devices) {
278 dev = list_entry(dentry, struct mtd_device, link);
279 if (dev == current_dev) {
280 mtddevnum += current_partnum;
281 sprintf(buf, "%d", mtddevnum);
282 setenv("mtddevnum", buf);
285 mtddevnum += dev->num_parts;
288 part = jffs2_part_info(current_dev, current_partnum);
289 setenv("mtddevname", part->name);
291 DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
293 setenv("mtddevnum", NULL);
294 setenv("mtddevname", NULL);
296 DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
301 * Save current device and partition in environment variable 'partition'.
303 static void current_save(void)
307 DEBUGF("--- current_save ---\n");
310 sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_dev->id->type),
311 current_dev->id->num, current_partnum);
313 setenv("partition", buf);
314 strncpy(last_partition, buf, 16);
316 DEBUGF("=> partition %s\n", buf);
318 setenv("partition", NULL);
319 last_partition[0] = '\0';
321 DEBUGF("=> partition NULL\n");
327 * Performs sanity check for supplied NOR flash partition. Table of existing
328 * NOR flash devices is searched and partition device is located. Alignment
329 * with the granularity of NOR flash sectors is verified.
331 * @param id of the parent device
332 * @param part partition to validate
333 * @return 0 if partition is valid, 1 otherwise
335 static int part_validate_nor(struct mtdids *id, struct part_info *part)
337 #if defined(CONFIG_CMD_FLASH)
338 /* info for FLASH chips */
339 extern flash_info_t flash_info[];
345 flash = &flash_info[id->num];
348 for (i = 0; i < flash->sector_count; i++) {
349 if ((flash->start[i] - flash->start[0]) == part->offset) {
354 if (offset_aligned == 0) {
355 printf("%s%d: partition (%s) start offset alignment incorrect\n",
356 MTD_DEV_TYPE(id->type), id->num, part->name);
360 end_offset = part->offset + part->size;
361 for (i = 0; i < flash->sector_count; i++) {
362 if ((flash->start[i] - flash->start[0]) == end_offset)
366 if (flash->size == end_offset)
369 printf("%s%d: partition (%s) size alignment incorrect\n",
370 MTD_DEV_TYPE(id->type), id->num, part->name);
376 * Performs sanity check for supplied NAND flash partition. Table of existing
377 * NAND flash devices is searched and partition device is located. Alignment
378 * with the granularity of nand erasesize is verified.
380 * @param id of the parent device
381 * @param part partition to validate
382 * @return 0 if partition is valid, 1 otherwise
384 static int part_validate_nand(struct mtdids *id, struct part_info *part)
386 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
387 /* info for NAND chips */
390 nand = &nand_info[id->num];
392 if ((unsigned long)(part->offset) % nand->erasesize) {
393 printf("%s%d: partition (%s) start offset alignment incorrect\n",
394 MTD_DEV_TYPE(id->type), id->num, part->name);
398 if (part->size % nand->erasesize) {
399 printf("%s%d: partition (%s) size alignment incorrect\n",
400 MTD_DEV_TYPE(id->type), id->num, part->name);
411 * Performs sanity check for supplied OneNAND flash partition.
412 * Table of existing OneNAND flash devices is searched and partition device
413 * is located. Alignment with the granularity of nand erasesize is verified.
415 * @param id of the parent device
416 * @param part partition to validate
417 * @return 0 if partition is valid, 1 otherwise
419 static int part_validate_onenand(struct mtdids *id, struct part_info *part)
421 #if defined(CONFIG_CMD_ONENAND)
422 /* info for OneNAND chips */
423 struct mtd_info *mtd;
427 if ((unsigned long)(part->offset) % mtd->erasesize) {
428 printf("%s%d: partition (%s) start offset"
429 "alignment incorrect\n",
430 MTD_DEV_TYPE(id->type), id->num, part->name);
434 if (part->size % mtd->erasesize) {
435 printf("%s%d: partition (%s) size alignment incorrect\n",
436 MTD_DEV_TYPE(id->type), id->num, part->name);
448 * Performs sanity check for supplied partition. Offset and size are verified
449 * to be within valid range. Partition type is checked and either
450 * parts_validate_nor() or parts_validate_nand() is called with the argument
453 * @param id of the parent device
454 * @param part partition to validate
455 * @return 0 if partition is valid, 1 otherwise
457 static int part_validate(struct mtdids *id, struct part_info *part)
459 if (part->size == SIZE_REMAINING)
460 part->size = id->size - part->offset;
462 if (part->offset > id->size) {
463 printf("%s: offset %08x beyond flash size %08x\n",
464 id->mtd_id, part->offset, id->size);
468 if ((part->offset + part->size) <= part->offset) {
469 printf("%s%d: partition (%s) size too big\n",
470 MTD_DEV_TYPE(id->type), id->num, part->name);
474 if (part->offset + part->size > id->size) {
475 printf("%s: partitioning exceeds flash size\n", id->mtd_id);
479 if (id->type == MTD_DEV_TYPE_NAND)
480 return part_validate_nand(id, part);
481 else if (id->type == MTD_DEV_TYPE_NOR)
482 return part_validate_nor(id, part);
483 else if (id->type == MTD_DEV_TYPE_ONENAND)
484 return part_validate_onenand(id, part);
486 DEBUGF("part_validate: invalid dev type\n");
492 * Delete selected partition from the partion list of the specified device.
494 * @param dev device to delete partition from
495 * @param part partition to delete
496 * @return 0 on success, 1 otherwise
498 static int part_del(struct mtd_device *dev, struct part_info *part)
500 u8 current_save_needed = 0;
502 /* if there is only one partition, remove whole device */
503 if (dev->num_parts == 1)
504 return device_del(dev);
506 /* otherwise just delete this partition */
508 if (dev == current_dev) {
509 /* we are modyfing partitions for the current device,
511 struct part_info *curr_pi;
512 curr_pi = jffs2_part_info(current_dev, current_partnum);
515 if (curr_pi == part) {
516 printf("current partition deleted, resetting current to 0\n");
518 } else if (part->offset <= curr_pi->offset) {
521 current_save_needed = 1;
525 #ifdef CONFIG_NAND_LEGACY
526 jffs2_free_cache(part);
528 list_del(&part->link);
532 if (current_save_needed > 0)
541 * Delete all partitions from parts head list, free memory.
543 * @param head list of partitions to delete
545 static void part_delall(struct list_head *head)
547 struct list_head *entry, *n;
548 struct part_info *part_tmp;
550 /* clean tmp_list and free allocated memory */
551 list_for_each_safe(entry, n, head) {
552 part_tmp = list_entry(entry, struct part_info, link);
554 #ifdef CONFIG_NAND_LEGACY
555 jffs2_free_cache(part_tmp);
563 * Add new partition to the supplied partition list. Make sure partitions are
564 * sorted by offset in ascending order.
566 * @param head list this partition is to be added to
567 * @param new partition to be added
569 static int part_sort_add(struct mtd_device *dev, struct part_info *part)
571 struct list_head *entry;
572 struct part_info *new_pi, *curr_pi;
574 /* link partition to parrent dev */
577 if (list_empty(&dev->parts)) {
578 DEBUGF("part_sort_add: list empty\n");
579 list_add(&part->link, &dev->parts);
585 new_pi = list_entry(&part->link, struct part_info, link);
587 /* get current partition info if we are updating current device */
589 if (dev == current_dev)
590 curr_pi = jffs2_part_info(current_dev, current_partnum);
592 list_for_each(entry, &dev->parts) {
593 struct part_info *pi;
595 pi = list_entry(entry, struct part_info, link);
597 /* be compliant with kernel cmdline, allow only one partition at offset zero */
598 if ((new_pi->offset == pi->offset) && (pi->offset == 0)) {
599 printf("cannot add second partition at offset 0\n");
603 if (new_pi->offset <= pi->offset) {
604 list_add_tail(&part->link, entry);
607 if (curr_pi && (pi->offset <= curr_pi->offset)) {
608 /* we are modyfing partitions for the current
609 * device, update current */
619 list_add_tail(&part->link, &dev->parts);
626 * Add provided partition to the partition list of a given device.
628 * @param dev device to which partition is added
629 * @param part partition to be added
630 * @return 0 on success, 1 otherwise
632 static int part_add(struct mtd_device *dev, struct part_info *part)
634 /* verify alignment and size */
635 if (part_validate(dev->id, part) != 0)
638 /* partition is ok, add it to the list */
639 if (part_sort_add(dev, part) != 0)
646 * Parse one partition definition, allocate memory and return pointer to this
647 * location in retpart.
649 * @param partdef pointer to the partition definition string i.e. <part-def>
650 * @param ret output pointer to next char after parse completes (output)
651 * @param retpart pointer to the allocated partition (output)
652 * @return 0 on success, 1 otherwise
654 static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
656 struct part_info *part;
658 unsigned long offset;
661 unsigned int mask_flags;
668 /* fetch the partition size */
670 /* assign all remaining space to this partition */
671 DEBUGF("'-': remaining size assigned\n");
672 size = SIZE_REMAINING;
675 size = memsize_parse(p, &p);
676 if (size < MIN_PART_SIZE) {
677 printf("partition size too small (%lx)\n", size);
682 /* check for offset */
683 offset = OFFSET_NOT_SPECIFIED;
686 offset = memsize_parse(p, &p);
689 /* now look for the name */
692 if ((p = strchr(name, ')')) == NULL) {
693 printf("no closing ) found in partition name\n");
696 name_len = p - name + 1;
697 if ((name_len - 1) == 0) {
698 printf("empty partition name\n");
703 /* 0x00000000@0x00000000 */
708 /* test for options */
710 if (strncmp(p, "ro", 2) == 0) {
711 mask_flags |= MTD_WRITEABLE_CMD;
715 /* check for next partition definition */
717 if (size == SIZE_REMAINING) {
719 printf("no partitions allowed after a fill-up partition\n");
723 } else if ((*p == ';') || (*p == '\0')) {
726 printf("unexpected character '%c' at the end of partition\n", *p);
731 /* allocate memory */
732 part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
734 printf("out of memory\n");
737 memset(part, 0, sizeof(struct part_info) + name_len);
739 part->offset = offset;
740 part->mask_flags = mask_flags;
741 part->name = (char *)(part + 1);
744 /* copy user provided name */
745 strncpy(part->name, name, name_len - 1);
748 /* auto generated name in form of size@offset */
749 sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
753 part->name[name_len - 1] = '\0';
754 INIT_LIST_HEAD(&part->link);
756 DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
757 part->name, part->size,
758 part->offset, part->mask_flags);
763 #endif/* #ifdef CONFIG_JFFS2_CMDLINE */
766 * Check device number to be within valid range for given device type.
768 * @param dev device to validate
769 * @return 0 if device is valid, 1 otherwise
771 static int device_validate(u8 type, u8 num, u32 *size)
773 if (type == MTD_DEV_TYPE_NOR) {
774 #if defined(CONFIG_CMD_FLASH)
775 if (num < CFG_MAX_FLASH_BANKS) {
776 extern flash_info_t flash_info[];
777 *size = flash_info[num].size;
782 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
783 MTD_DEV_TYPE(type), num, CFG_MAX_FLASH_BANKS - 1);
785 printf("support for FLASH devices not present\n");
787 } else if (type == MTD_DEV_TYPE_NAND) {
788 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
789 if (num < CFG_MAX_NAND_DEVICE) {
790 #ifndef CONFIG_NAND_LEGACY
791 *size = nand_info[num].size;
793 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
794 *size = nand_dev_desc[num].totlen;
799 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
800 MTD_DEV_TYPE(type), num, CFG_MAX_NAND_DEVICE - 1);
802 printf("support for NAND devices not present\n");
804 } else if (type == MTD_DEV_TYPE_ONENAND) {
805 #if defined(CONFIG_CMD_ONENAND)
806 *size = onenand_mtd.size;
809 printf("support for OneNAND devices not present\n");
812 printf("Unknown defice type %d\n", type);
817 #ifdef CONFIG_JFFS2_CMDLINE
819 * Delete all mtd devices from a supplied devices list, free memory allocated for
820 * each device and delete all device partitions.
822 * @return 0 on success, 1 otherwise
824 static int device_delall(struct list_head *head)
826 struct list_head *entry, *n;
827 struct mtd_device *dev_tmp;
829 /* clean devices list */
830 list_for_each_safe(entry, n, head) {
831 dev_tmp = list_entry(entry, struct mtd_device, link);
833 part_delall(&dev_tmp->parts);
836 INIT_LIST_HEAD(&devices);
842 * If provided device exists it's partitions are deleted, device is removed
843 * from device list and device memory is freed.
845 * @param dev device to be deleted
846 * @return 0 on success, 1 otherwise
848 static int device_del(struct mtd_device *dev)
850 part_delall(&dev->parts);
851 list_del(&dev->link);
854 if (dev == current_dev) {
855 /* we just deleted current device */
856 if (list_empty(&devices)) {
859 /* reset first partition from first dev from the
860 * devices list as current */
861 current_dev = list_entry(devices.next, struct mtd_device, link);
873 * Search global device list and return pointer to the device of type and num
876 * @param type device type
877 * @param num device number
878 * @return NULL if requested device does not exist
880 static struct mtd_device* device_find(u8 type, u8 num)
882 struct list_head *entry;
883 struct mtd_device *dev_tmp;
885 list_for_each(entry, &devices) {
886 dev_tmp = list_entry(entry, struct mtd_device, link);
888 if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
896 * Add specified device to the global device list.
898 * @param dev device to be added
900 static void device_add(struct mtd_device *dev)
902 u8 current_save_needed = 0;
904 if (list_empty(&devices)) {
907 current_save_needed = 1;
910 list_add_tail(&dev->link, &devices);
912 if (current_save_needed > 0)
919 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
920 * return pointer to the device structure.
922 * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
923 * @param ret output pointer to next char after parse completes (output)
924 * @param retdev pointer to the allocated device (output)
925 * @return 0 on success, 1 otherwise
927 static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
929 struct mtd_device *dev;
930 struct part_info *part;
933 unsigned int mtd_id_len;
934 const char *p, *pend;
936 struct list_head *entry, *n;
945 DEBUGF("===device_parse===\n");
949 if (!(p = strchr(mtd_id, ':'))) {
950 printf("no <mtd-id> identifier\n");
953 mtd_id_len = p - mtd_id + 1;
956 /* verify if we have a valid device specified */
957 if ((id = id_find_by_mtd_id(mtd_id, mtd_id_len - 1)) == NULL) {
958 printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
962 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
963 id->type, MTD_DEV_TYPE(id->type),
964 id->num, id->mtd_id);
965 pend = strchr(p, ';');
966 DEBUGF("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
969 /* parse partitions */
973 if ((dev = device_find(id->type, id->num)) != NULL) {
974 /* if device already exists start at the end of the last partition */
975 part = list_entry(dev->parts.prev, struct part_info, link);
976 offset = part->offset + part->size;
979 while (p && (*p != '\0') && (*p != ';')) {
981 if ((part_parse(p, &p, &part) != 0) || (!part))
984 /* calculate offset when not specified */
985 if (part->offset == OFFSET_NOT_SPECIFIED)
986 part->offset = offset;
988 offset = part->offset;
990 /* verify alignment and size */
991 if (part_validate(id, part) != 0)
994 offset += part->size;
996 /* partition is ok, add it to the list */
997 list_add_tail(&part->link, &tmp_list);
1002 part_delall(&tmp_list);
1006 if (num_parts == 0) {
1007 printf("no partitions for device %s%d (%s)\n",
1008 MTD_DEV_TYPE(id->type), id->num, id->mtd_id);
1012 DEBUGF("\ntotal partitions: %d\n", num_parts);
1014 /* check for next device presence */
1018 } else if (*p == '\0') {
1021 printf("unexpected character '%c' at the end of device\n", *p);
1027 /* allocate memory for mtd_device structure */
1028 if ((dev = (struct mtd_device *)malloc(sizeof(struct mtd_device))) == NULL) {
1029 printf("out of memory\n");
1032 memset(dev, 0, sizeof(struct mtd_device));
1034 dev->num_parts = 0; /* part_sort_add increments num_parts */
1035 INIT_LIST_HEAD(&dev->parts);
1036 INIT_LIST_HEAD(&dev->link);
1038 /* move partitions from tmp_list to dev->parts */
1039 list_for_each_safe(entry, n, &tmp_list) {
1040 part = list_entry(entry, struct part_info, link);
1042 if (part_sort_add(dev, part) != 0) {
1055 * Initialize global device list.
1057 * @return 0 on success, 1 otherwise
1059 static int devices_init(void)
1061 last_parts[0] = '\0';
1065 return device_delall(&devices);
1069 * Search global mtdids list and find id of requested type and number.
1071 * @return pointer to the id if it exists, NULL otherwise
1073 static struct mtdids* id_find(u8 type, u8 num)
1075 struct list_head *entry;
1078 list_for_each(entry, &mtdids) {
1079 id = list_entry(entry, struct mtdids, link);
1081 if ((id->type == type) && (id->num == num))
1089 * Search global mtdids list and find id of a requested mtd_id.
1091 * Note: first argument is not null terminated.
1093 * @param mtd_id string containing requested mtd_id
1094 * @param mtd_id_len length of supplied mtd_id
1095 * @return pointer to the id if it exists, NULL otherwise
1097 static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
1099 struct list_head *entry;
1102 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1103 mtd_id_len, mtd_id, mtd_id_len);
1105 list_for_each(entry, &mtdids) {
1106 id = list_entry(entry, struct mtdids, link);
1108 DEBUGF("entry: '%s' (len = %d)\n",
1109 id->mtd_id, strlen(id->mtd_id));
1111 if (mtd_id_len != strlen(id->mtd_id))
1113 if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
1119 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1122 * Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
1123 * return device type and number.
1125 * @param id string describing device id
1126 * @param ret_id output pointer to next char after parse completes (output)
1127 * @param dev_type parsed device type (output)
1128 * @param dev_num parsed device number (output)
1129 * @return 0 on success, 1 otherwise
1131 int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
1136 if (strncmp(p, "nand", 4) == 0) {
1137 *dev_type = MTD_DEV_TYPE_NAND;
1139 } else if (strncmp(p, "nor", 3) == 0) {
1140 *dev_type = MTD_DEV_TYPE_NOR;
1142 } else if (strncmp(p, "onenand", 7) == 0) {
1143 *dev_type = MTD_DEV_TYPE_ONENAND;
1146 printf("incorrect device type in %s\n", id);
1151 printf("incorrect device number in %s\n", id);
1155 *dev_num = simple_strtoul(p, (char **)&p, 0);
1161 #ifdef CONFIG_JFFS2_CMDLINE
1163 * Process all devices and generate corresponding mtdparts string describing
1164 * all partitions on all devices.
1166 * @param buf output buffer holding generated mtdparts string (output)
1167 * @param buflen buffer size
1168 * @return 0 on success, 1 otherwise
1170 static int generate_mtdparts(char *buf, u32 buflen)
1172 struct list_head *pentry, *dentry;
1173 struct mtd_device *dev;
1174 struct part_info *part, *prev_part;
1177 u32 size, offset, len, part_cnt;
1178 u32 maxlen = buflen - 1;
1180 DEBUGF("--- generate_mtdparts ---\n");
1182 if (list_empty(&devices)) {
1187 sprintf(p, "mtdparts=");
1190 list_for_each(dentry, &devices) {
1191 dev = list_entry(dentry, struct mtd_device, link);
1194 len = strlen(dev->id->mtd_id) + 1;
1197 memcpy(p, dev->id->mtd_id, len - 1);
1202 /* format partitions */
1205 list_for_each(pentry, &dev->parts) {
1206 part = list_entry(pentry, struct part_info, link);
1208 offset = part->offset;
1211 /* partition size */
1212 memsize_format(tmpbuf, size);
1213 len = strlen(tmpbuf);
1216 memcpy(p, tmpbuf, len);
1221 /* add offset only when there is a gap between
1223 if ((!prev_part && (offset != 0)) ||
1224 (prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
1226 memsize_format(tmpbuf, offset);
1227 len = strlen(tmpbuf) + 1;
1231 memcpy(p, tmpbuf, len - 1);
1236 /* copy name only if user supplied */
1237 if(!part->auto_name) {
1238 len = strlen(part->name) + 2;
1243 memcpy(p, part->name, len - 2);
1250 if (part->mask_flags && MTD_WRITEABLE_CMD) {
1259 /* print ',' separator if there are other partitions
1261 if (dev->num_parts > part_cnt) {
1269 /* print ';' separator if there are other devices following */
1270 if (dentry->next != &devices) {
1278 /* we still have at least one char left, as we decremented maxlen at
1285 last_parts[0] = '\0';
1290 * Call generate_mtdparts to process all devices and generate corresponding
1291 * mtdparts string, save it in mtdparts environment variable.
1293 * @param buf output buffer holding generated mtdparts string (output)
1294 * @param buflen buffer size
1295 * @return 0 on success, 1 otherwise
1297 static int generate_mtdparts_save(char *buf, u32 buflen)
1301 ret = generate_mtdparts(buf, buflen);
1303 if ((buf[0] != '\0') && (ret == 0))
1304 setenv("mtdparts", buf);
1306 setenv("mtdparts", NULL);
1312 * Format and print out a partition list for each device from global device
1315 static void list_partitions(void)
1317 struct list_head *dentry, *pentry;
1318 struct part_info *part;
1319 struct mtd_device *dev;
1322 DEBUGF("\n---list_partitions---\n");
1323 list_for_each(dentry, &devices) {
1324 dev = list_entry(dentry, struct mtd_device, link);
1325 printf("\ndevice %s%d <%s>, # parts = %d\n",
1326 MTD_DEV_TYPE(dev->id->type), dev->id->num,
1327 dev->id->mtd_id, dev->num_parts);
1328 printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
1330 /* list partitions for given device */
1332 list_for_each(pentry, &dev->parts) {
1333 part = list_entry(pentry, struct part_info, link);
1334 printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
1335 part_num, part->name, part->size,
1336 part->offset, part->mask_flags);
1341 if (list_empty(&devices))
1342 printf("no partitions defined\n");
1344 /* current_dev is not NULL only when we have non empty device list */
1346 part = jffs2_part_info(current_dev, current_partnum);
1348 printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
1349 MTD_DEV_TYPE(current_dev->id->type),
1350 current_dev->id->num, current_partnum,
1351 part->name, part->size, part->offset);
1353 printf("could not get current partition info\n\n");
1357 printf("\ndefaults:\n");
1358 printf("mtdids : %s\n", mtdids_default);
1359 printf("mtdparts: %s\n", mtdparts_default);
1363 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1364 * corresponding device and verify partition number.
1366 * @param id string describing device and partition or partition name
1367 * @param dev pointer to the requested device (output)
1368 * @param part_num verified partition number (output)
1369 * @param part pointer to requested partition (output)
1370 * @return 0 on success, 1 otherwise
1372 int find_dev_and_part(const char *id, struct mtd_device **dev,
1373 u8 *part_num, struct part_info **part)
1375 struct list_head *dentry, *pentry;
1376 u8 type, dnum, pnum;
1379 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
1381 list_for_each(dentry, &devices) {
1383 *dev = list_entry(dentry, struct mtd_device, link);
1384 list_for_each(pentry, &(*dev)->parts) {
1385 *part = list_entry(pentry, struct part_info, link);
1386 if (strcmp((*part)->name, id) == 0)
1397 if (id_parse(p, &p, &type, &dnum) != 0)
1400 if ((*p++ != ',') || (*p == '\0')) {
1401 printf("no partition number specified\n");
1404 pnum = simple_strtoul(p, (char **)&p, 0);
1406 printf("unexpected trailing character '%c'\n", *p);
1410 if ((*dev = device_find(type, dnum)) == NULL) {
1411 printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
1415 if ((*part = jffs2_part_info(*dev, pnum)) == NULL) {
1416 printf("no such partition\n");
1427 * Find and delete partition. For partition id format see find_dev_and_part().
1429 * @param id string describing device and partition
1430 * @return 0 on success, 1 otherwise
1432 static int delete_partition(const char *id)
1435 struct mtd_device *dev;
1436 struct part_info *part;
1438 if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
1440 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1441 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
1442 part->name, part->size, part->offset);
1444 if (part_del(dev, part) != 0)
1447 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
1448 printf("generated mtdparts too long, reseting to null\n");
1454 printf("partition %s not found\n", id);
1459 * Accept character string describing mtd partitions and call device_parse()
1460 * for each entry. Add created devices to the global devices list.
1462 * @param mtdparts string specifing mtd partitions
1463 * @return 0 on success, 1 otherwise
1465 static int parse_mtdparts(const char *const mtdparts)
1467 const char *p = mtdparts;
1468 struct mtd_device *dev;
1471 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
1473 /* delete all devices and partitions */
1474 if (devices_init() != 0) {
1475 printf("could not initialise device list\n");
1479 /* re-read 'mtdparts' variable, devices_init may be updating env */
1480 p = getenv("mtdparts");
1482 if (strncmp(p, "mtdparts=", 9) != 0) {
1483 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1488 while (p && (*p != '\0')) {
1490 if ((device_parse(p, &p, &dev) != 0) || (!dev))
1493 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
1494 dev->id->num, dev->id->mtd_id);
1496 /* check if parsed device is already on the list */
1497 if (device_find(dev->id->type, dev->id->num) != NULL) {
1498 printf("device %s%d redefined, please correct mtdparts variable\n",
1499 MTD_DEV_TYPE(dev->id->type), dev->id->num);
1503 list_add_tail(&dev->link, &devices);
1507 device_delall(&devices);
1515 * Parse provided string describing mtdids mapping (see file header for mtdids
1516 * variable format). Allocate memory for each entry and add all found entries
1517 * to the global mtdids list.
1519 * @param ids mapping string
1520 * @return 0 on success, 1 otherwise
1522 static int parse_mtdids(const char *const ids)
1524 const char *p = ids;
1528 struct list_head *entry, *n;
1529 struct mtdids *id_tmp;
1534 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
1536 /* clean global mtdids list */
1537 list_for_each_safe(entry, n, &mtdids) {
1538 id_tmp = list_entry(entry, struct mtdids, link);
1539 DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
1544 INIT_LIST_HEAD(&mtdids);
1546 while(p && (*p != '\0')) {
1549 /* parse 'nor'|'nand'|'onenand'<dev-num> */
1550 if (id_parse(p, &p, &type, &num) != 0)
1554 printf("mtdids: incorrect <dev-num>\n");
1559 /* check if requested device exists */
1560 if (device_validate(type, num, &size) != 0)
1563 /* locate <mtd-id> */
1565 if ((p = strchr(mtd_id, ',')) != NULL) {
1566 mtd_id_len = p - mtd_id + 1;
1569 mtd_id_len = strlen(mtd_id) + 1;
1571 if (mtd_id_len == 0) {
1572 printf("mtdids: no <mtd-id> identifier\n");
1576 /* check if this id is already on the list */
1577 int double_entry = 0;
1578 list_for_each(entry, &mtdids) {
1579 id_tmp = list_entry(entry, struct mtdids, link);
1580 if ((id_tmp->type == type) && (id_tmp->num == num)) {
1586 printf("device id %s%d redefined, please correct mtdids variable\n",
1587 MTD_DEV_TYPE(type), num);
1591 /* allocate mtdids structure */
1592 if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
1593 printf("out of memory\n");
1596 memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
1600 id->mtd_id = (char *)(id + 1);
1601 strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
1602 id->mtd_id[mtd_id_len - 1] = '\0';
1603 INIT_LIST_HEAD(&id->link);
1605 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1606 MTD_DEV_TYPE(id->type), id->num,
1607 id->size, id->mtd_id);
1609 list_add_tail(&id->link, &mtdids);
1613 /* clean mtdids list and free allocated memory */
1614 list_for_each_safe(entry, n, &mtdids) {
1615 id_tmp = list_entry(entry, struct mtdids, link);
1626 * Parse and initialize global mtdids mapping and create global
1627 * device/partition list.
1629 * @return 0 on success, 1 otherwise
1631 int mtdparts_init(void)
1633 static int initialized = 0;
1634 const char *ids, *parts;
1635 const char *current_partition;
1637 char tmp_ep[PARTITION_MAXLEN];
1639 DEBUGF("\n---mtdparts_init---\n");
1641 INIT_LIST_HEAD(&mtdids);
1642 INIT_LIST_HEAD(&devices);
1643 memset(last_ids, 0, MTDIDS_MAXLEN);
1644 memset(last_parts, 0, MTDPARTS_MAXLEN);
1645 memset(last_partition, 0, PARTITION_MAXLEN);
1650 ids = getenv("mtdids");
1651 parts = getenv("mtdparts");
1652 current_partition = getenv("partition");
1654 /* save it for later parsing, cannot rely on current partition pointer
1655 * as 'partition' variable may be updated during init */
1657 if (current_partition)
1658 strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
1660 DEBUGF("last_ids : %s\n", last_ids);
1661 DEBUGF("env_ids : %s\n", ids);
1662 DEBUGF("last_parts: %s\n", last_parts);
1663 DEBUGF("env_parts : %s\n\n", parts);
1665 DEBUGF("last_partition : %s\n", last_partition);
1666 DEBUGF("env_partition : %s\n", current_partition);
1668 /* if mtdids varible is empty try to use defaults */
1670 if (mtdids_default) {
1671 DEBUGF("mtdids variable not defined, using default\n");
1672 ids = mtdids_default;
1673 setenv("mtdids", (char *)ids);
1675 printf("mtdids not defined, no default present\n");
1679 if (strlen(ids) > MTDIDS_MAXLEN - 1) {
1680 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
1684 /* do no try to use defaults when mtdparts variable is not defined,
1685 * just check the length */
1687 printf("mtdparts variable not set, see 'help mtdparts'\n");
1689 if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
1690 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
1694 /* check if we have already parsed those mtdids */
1695 if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
1700 if (parse_mtdids(ids) != 0) {
1705 /* ok it's good, save new ids */
1706 strncpy(last_ids, ids, MTDIDS_MAXLEN);
1709 /* parse partitions if either mtdparts or mtdids were updated */
1710 if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
1711 if (parse_mtdparts(parts) != 0)
1714 if (list_empty(&devices)) {
1715 printf("mtdparts_init: no valid partitions\n");
1719 /* ok it's good, save new parts */
1720 strncpy(last_parts, parts, MTDPARTS_MAXLEN);
1722 /* reset first partition from first dev from the list as current */
1723 current_dev = list_entry(devices.next, struct mtd_device, link);
1724 current_partnum = 0;
1727 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1728 MTD_DEV_TYPE(current_dev->id->type),
1729 current_dev->id->num, current_partnum);
1732 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1733 if (!parts && (last_parts[0] != '\0'))
1734 return devices_init();
1736 /* do not process current partition if mtdparts variable is null */
1740 /* is current partition set in environment? if so, use it */
1741 if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
1742 struct part_info *p;
1743 struct mtd_device *cdev;
1746 DEBUGF("--- getting current partition: %s\n", tmp_ep);
1748 if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
1750 current_partnum = pnum;
1753 } else if (getenv("partition") == NULL) {
1754 DEBUGF("no partition variable set, setting...\n");
1760 #else /* #ifdef CONFIG_JFFS2_CMDLINE */
1762 * 'Static' version of command line mtdparts_init() routine. Single partition on
1763 * a single device configuration.
1767 * Parse and initialize global mtdids mapping and create global
1768 * device/partition list.
1770 * @return 0 on success, 1 otherwise
1772 int mtdparts_init(void)
1774 static int initialized = 0;
1778 DEBUGF("\n---mtdparts_init---\n");
1781 struct part_info *part;
1784 current_dev = (struct mtd_device *)
1785 malloc(sizeof(struct mtd_device) +
1786 sizeof(struct part_info) +
1787 sizeof(struct mtdids));
1789 printf("out of memory\n");
1792 memset(current_dev, 0, sizeof(struct mtd_device) +
1793 sizeof(struct part_info) + sizeof(struct mtdids));
1795 id = (struct mtdids *)(current_dev + 1);
1796 part = (struct part_info *)(id + 1);
1799 id->mtd_id = "single part";
1801 #if defined(CONFIG_JFFS2_DEV)
1802 dev_name = CONFIG_JFFS2_DEV;
1807 if ((id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
1808 (device_validate(id->type, id->num, &size) != 0)) {
1809 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
1814 INIT_LIST_HEAD(&id->link);
1816 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1817 id->type, id->num, id->size, id->mtd_id);
1820 part->name = "static";
1821 part->auto_name = 0;
1823 #if defined(CONFIG_JFFS2_PART_SIZE)
1824 part->size = CONFIG_JFFS2_PART_SIZE;
1826 part->size = SIZE_REMAINING;
1829 #if defined(CONFIG_JFFS2_PART_OFFSET)
1830 part->offset = CONFIG_JFFS2_PART_OFFSET;
1832 part->offset = 0x00000000;
1835 part->dev = current_dev;
1836 INIT_LIST_HEAD(&part->link);
1838 /* recalculate size if needed */
1839 if (part->size == SIZE_REMAINING)
1840 part->size = id->size - part->offset;
1842 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1843 part->name, part->size, part->offset);
1846 current_dev->id = id;
1847 INIT_LIST_HEAD(¤t_dev->link);
1848 current_dev->num_parts = 1;
1849 INIT_LIST_HEAD(¤t_dev->parts);
1850 list_add(&part->link, ¤t_dev->parts);
1855 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1858 * Return pointer to the partition of a requested number from a requested
1861 * @param dev device that is to be searched for a partition
1862 * @param part_num requested partition number
1863 * @return pointer to the part_info, NULL otherwise
1865 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
1867 struct list_head *entry;
1868 struct part_info *part;
1874 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1875 part_num, MTD_DEV_TYPE(dev->id->type),
1876 dev->id->num, dev->id->mtd_id);
1878 if (part_num >= dev->num_parts) {
1879 printf("invalid partition number %d for device %s%d (%s)\n",
1880 part_num, MTD_DEV_TYPE(dev->id->type),
1881 dev->id->num, dev->id->mtd_id);
1885 /* locate partition number, return it */
1887 list_for_each(entry, &dev->parts) {
1888 part = list_entry(entry, struct part_info, link);
1890 if (part_num == num++) {
1898 /***************************************************/
1899 /* U-boot commands */
1900 /***************************************************/
1903 * Routine implementing fsload u-boot command. This routine tries to load
1904 * a requested file from jffs2/cramfs filesystem on a current partition.
1906 * @param cmdtp command internal data
1907 * @param flag command flag
1908 * @param argc number of arguments supplied to the command
1909 * @param argv arguments list
1910 * @return 0 on success, 1 otherwise
1912 int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1917 struct part_info *part;
1918 ulong offset = load_addr;
1920 /* pre-set Boot file name */
1921 if ((filename = getenv("bootfile")) == NULL) {
1922 filename = "uImage";
1929 offset = simple_strtoul(argv[1], NULL, 16);
1934 /* make sure we are in sync with env variables */
1935 if (mtdparts_init() !=0)
1938 if ((part = jffs2_part_info(current_dev, current_partnum))){
1940 /* check partition type for cramfs */
1941 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1942 printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
1944 if (cramfs_check(part)) {
1945 size = cramfs_load ((char *) offset, part, filename);
1947 /* if this is not cramfs assume jffs2 */
1948 size = jffs2_1pass_load((char *)offset, part, filename);
1953 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
1954 fsname, size, offset);
1955 sprintf(buf, "%x", size);
1956 setenv("filesize", buf);
1958 printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
1967 * Routine implementing u-boot ls command which lists content of a given
1968 * directory on a current partition.
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_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1978 char *filename = "/";
1980 struct part_info *part;
1985 /* make sure we are in sync with env variables */
1986 if (mtdparts_init() !=0)
1989 if ((part = jffs2_part_info(current_dev, current_partnum))){
1991 /* check partition type for cramfs */
1992 if (cramfs_check(part)) {
1993 ret = cramfs_ls (part, filename);
1995 /* if this is not cramfs assume jffs2 */
1996 ret = jffs2_1pass_ls(part, filename);
2005 * Routine implementing u-boot fsinfo command. This routine prints out
2006 * miscellaneous filesystem informations/statistics.
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_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2016 struct part_info *part;
2020 /* make sure we are in sync with env variables */
2021 if (mtdparts_init() !=0)
2024 if ((part = jffs2_part_info(current_dev, current_partnum))){
2026 /* check partition type for cramfs */
2027 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
2028 printf("### filesystem type is %s\n", fsname);
2030 if (cramfs_check(part)) {
2031 ret = cramfs_info (part);
2033 /* if this is not cramfs assume jffs2 */
2034 ret = jffs2_1pass_info(part);
2042 /* command line only */
2043 #ifdef CONFIG_JFFS2_CMDLINE
2045 * Routine implementing u-boot chpart command. Sets new current partition based
2046 * on the user supplied partition id. For partition id format see find_dev_and_part().
2048 * @param cmdtp command internal data
2049 * @param flag command flag
2050 * @param argc number of arguments supplied to the command
2051 * @param argv arguments list
2052 * @return 0 on success, 1 otherwise
2054 int do_jffs2_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2056 /* command line only */
2057 struct mtd_device *dev;
2058 struct part_info *part;
2061 if (mtdparts_init() !=0)
2065 printf("no partition id specified\n");
2069 if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
2073 current_partnum = pnum;
2076 printf("partition changed to %s%d,%d\n",
2077 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
2083 * Routine implementing u-boot mtdparts command. Initialize/update default global
2084 * partition list and process user partition request (list, add, del).
2086 * @param cmdtp command internal data
2087 * @param flag command flag
2088 * @param argc number of arguments supplied to the command
2089 * @param argv arguments list
2090 * @return 0 on success, 1 otherwise
2092 int do_jffs2_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2095 if (strcmp(argv[1], "default") == 0) {
2096 setenv("mtdids", (char *)mtdids_default);
2097 setenv("mtdparts", (char *)mtdparts_default);
2098 setenv("partition", NULL);
2102 } else if (strcmp(argv[1], "delall") == 0) {
2103 /* this may be the first run, initialize lists if needed */
2106 setenv("mtdparts", NULL);
2108 /* devices_init() calls current_save() */
2109 return devices_init();
2113 /* make sure we are in sync with env variables */
2114 if (mtdparts_init() != 0)
2122 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2123 if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
2124 #define PART_ADD_DESC_MAXLEN 64
2125 char tmpbuf[PART_ADD_DESC_MAXLEN];
2127 struct mtd_device *dev;
2128 struct mtd_device *dev_tmp;
2130 struct part_info *p;
2132 if (id_parse(argv[2], NULL, &type, &num) != 0)
2135 if ((id = id_find(type, num)) == NULL) {
2136 printf("no such device %s defined in mtdids variable\n", argv[2]);
2140 len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
2141 len += strlen(argv[3]); /* size@offset */
2142 len += strlen(argv[4]) + 2; /* '(' name ')' */
2143 if (argv[5] && (strlen(argv[5]) == 2))
2144 len += 2; /* 'ro' */
2146 if (len >= PART_ADD_DESC_MAXLEN) {
2147 printf("too long partition description\n");
2150 sprintf(tmpbuf, "%s:%s(%s)%s",
2151 id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
2152 DEBUGF("add tmpbuf: %s\n", tmpbuf);
2154 if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
2157 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
2158 dev->id->num, dev->id->mtd_id);
2160 if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
2163 /* merge new partition with existing ones*/
2164 p = list_entry(dev->parts.next, struct part_info, link);
2165 if (part_add(dev_tmp, p) != 0) {
2171 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
2172 printf("generated mtdparts too long, reseting to null\n");
2179 /* mtdparts del part-id */
2180 if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
2181 DEBUGF("del: part-id = %s\n", argv[2]);
2183 return delete_partition(argv[2]);
2186 printf ("Usage:\n%s\n", cmdtp->usage);
2189 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2191 /***************************************************/
2193 fsload, 3, 0, do_jffs2_fsload,
2194 "fsload\t- load binary file from a filesystem image\n",
2195 "[ off ] [ filename ]\n"
2196 " - load binary file from flash bank\n"
2197 " with offset 'off'\n"
2200 ls, 2, 1, do_jffs2_ls,
2201 "ls\t- list files in a directory (default /)\n",
2203 " - list files in a directory.\n"
2207 fsinfo, 1, 1, do_jffs2_fsinfo,
2208 "fsinfo\t- print information about filesystems\n",
2209 " - print information about filesystems\n"
2212 #ifdef CONFIG_JFFS2_CMDLINE
2214 chpart, 2, 0, do_jffs2_chpart,
2215 "chpart\t- change active partition\n",
2217 " - change active partition (e.g. part-id = nand0,1)\n"
2221 mtdparts, 6, 0, do_jffs2_mtdparts,
2222 "mtdparts- define flash/nand partitions\n",
2224 " - list partition table\n"
2226 " - delete all partitions\n"
2227 "mtdparts del part-id\n"
2228 " - delete partition (e.g. part-id = nand0,1)\n"
2229 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2230 " - add partition\n"
2231 "mtdparts default\n"
2232 " - reset partition table to defaults\n\n"
2234 "this command uses three environment variables:\n\n"
2235 "'partition' - keeps current partition identifier\n\n"
2236 "partition := <part-id>\n"
2237 "<part-id> := <dev-id>,part_num\n\n"
2238 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2239 "mtdids=<idmap>[,<idmap>,...]\n\n"
2240 "<idmap> := <dev-id>=<mtd-id>\n"
2241 "<dev-id> := 'nand'|'nor'|'onenand'<dev-num>\n"
2242 "<dev-num> := mtd device number, 0...\n"
2243 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2244 "'mtdparts' - partition list\n\n"
2245 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2246 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2247 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2248 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2249 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2250 "<offset> := partition start offset within the device\n"
2251 "<name> := '(' NAME ')'\n"
2252 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2254 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2256 /***************************************************/