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>
97 #if (CONFIG_COMMANDS & CFG_CMD_JFFS2)
99 #include <cramfs/cramfs_fs.h>
101 #if (CONFIG_COMMANDS & CFG_CMD_NAND)
102 #ifdef CFG_NAND_LEGACY
103 #include <linux/mtd/nand_legacy.h>
104 #else /* !CFG_NAND_LEGACY */
105 #include <linux/mtd/nand.h>
107 #endif /* !CFG_NAND_LEGACY */
108 #endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
109 /* enable/disable debugging messages */
114 # define DEBUGF(fmt, args...) printf(fmt ,##args)
116 # define DEBUGF(fmt, args...)
119 /* special size referring to all the remaining space in a partition */
120 #define SIZE_REMAINING 0xFFFFFFFF
122 /* special offset value, it is used when not provided by user
124 * this value is used temporarily during parsing, later such offests
125 * are recalculated */
126 #define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
128 /* minimum partition size */
129 #define MIN_PART_SIZE 4096
131 /* this flag needs to be set in part_info struct mask_flags
132 * field for read-only partitions */
133 #define MTD_WRITEABLE_CMD 1
135 #ifdef CONFIG_JFFS2_CMDLINE
136 /* default values for mtdids and mtdparts variables */
137 #if defined(MTDIDS_DEFAULT)
138 static const char *const mtdids_default
= MTDIDS_DEFAULT
;
140 #warning "MTDIDS_DEFAULT not defined!"
141 static const char *const mtdids_default
= NULL
;
144 #if defined(MTDPARTS_DEFAULT)
145 static const char *const mtdparts_default
= MTDPARTS_DEFAULT
;
147 #warning "MTDPARTS_DEFAULT not defined!"
148 static const char *const mtdparts_default
= NULL
;
151 /* copies of last seen 'mtdids', 'mtdparts' and 'partition' env variables */
152 #define MTDIDS_MAXLEN 128
153 #define MTDPARTS_MAXLEN 512
154 #define PARTITION_MAXLEN 16
155 static char last_ids
[MTDIDS_MAXLEN
];
156 static char last_parts
[MTDPARTS_MAXLEN
];
157 static char last_partition
[PARTITION_MAXLEN
];
159 /* low level jffs2 cache cleaning routine */
160 extern void jffs2_free_cache(struct part_info
*part
);
162 /* mtdids mapping list, filled by parse_ids() */
163 struct list_head mtdids
;
165 /* device/partition list, parse_cmdline() parses into here */
166 struct list_head devices
;
167 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
169 /* current active device and partition number */
170 static struct mtd_device
*current_dev
= NULL
;
171 static u8 current_partnum
= 0;
173 extern int cramfs_check (struct part_info
*info
);
174 extern int cramfs_load (char *loadoffset
, struct part_info
*info
, char *filename
);
175 extern int cramfs_ls (struct part_info
*info
, char *filename
);
176 extern int cramfs_info (struct part_info
*info
);
178 static struct part_info
* jffs2_part_info(struct mtd_device
*dev
, unsigned int part_num
);
180 /* command line only routines */
181 #ifdef CONFIG_JFFS2_CMDLINE
183 static struct mtdids
* id_find_by_mtd_id(const char *mtd_id
, unsigned int mtd_id_len
);
184 static int device_del(struct mtd_device
*dev
);
187 * Parses a string into a number. The number stored at ptr is
188 * potentially suffixed with K (for kilobytes, or 1024 bytes),
189 * M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
190 * 1073741824). If the number is suffixed with K, M, or G, then
191 * the return value is the number multiplied by one kilobyte, one
192 * megabyte, or one gigabyte, respectively.
194 * @param ptr where parse begins
195 * @param retptr output pointer to next char after parse completes (output)
196 * @return resulting unsigned int
198 static unsigned long memsize_parse (const char *const ptr
, const char **retptr
)
200 unsigned long ret
= simple_strtoul(ptr
, (char **)retptr
, 0);
221 * Format string describing supplied size. This routine does the opposite job
222 * to memsize_parse(). Size in bytes is converted to string and if possible
223 * shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
225 * Note, that this routine does not check for buffer overflow, it's the caller
226 * who must assure enough space.
228 * @param buf output buffer
229 * @param size size to be converted to string
231 static void memsize_format(char *buf
, u32 size
)
233 #define SIZE_GB ((u32)1024*1024*1024)
234 #define SIZE_MB ((u32)1024*1024)
235 #define SIZE_KB ((u32)1024)
237 if ((size
% SIZE_GB
) == 0)
238 sprintf(buf
, "%lug", size
/SIZE_GB
);
239 else if ((size
% SIZE_MB
) == 0)
240 sprintf(buf
, "%lum", size
/SIZE_MB
);
241 else if (size
% SIZE_KB
== 0)
242 sprintf(buf
, "%luk", size
/SIZE_KB
);
244 sprintf(buf
, "%lu", size
);
248 * This routine does global indexing of all partitions. Resulting index for
249 * current partition is saved in 'mtddevnum'. Current partition name in
252 static void index_partitions(void)
256 struct part_info
*part
;
257 struct list_head
*dentry
;
258 struct mtd_device
*dev
;
260 DEBUGF("--- index partitions ---\n");
264 list_for_each(dentry
, &devices
) {
265 dev
= list_entry(dentry
, struct mtd_device
, link
);
266 if (dev
== current_dev
) {
267 mtddevnum
+= current_partnum
;
268 sprintf(buf
, "%d", mtddevnum
);
269 setenv("mtddevnum", buf
);
272 mtddevnum
+= dev
->num_parts
;
275 part
= jffs2_part_info(current_dev
, current_partnum
);
276 setenv("mtddevname", part
->name
);
278 DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum
, part
->name
);
280 setenv("mtddevnum", NULL
);
281 setenv("mtddevname", NULL
);
283 DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
288 * Save current device and partition in environment variable 'partition'.
290 static void current_save(void)
294 DEBUGF("--- current_save ---\n");
297 sprintf(buf
, "%s%d,%d", MTD_DEV_TYPE(current_dev
->id
->type
),
298 current_dev
->id
->num
, current_partnum
);
300 setenv("partition", buf
);
301 strncpy(last_partition
, buf
, 16);
303 DEBUGF("=> partition %s\n", buf
);
305 setenv("partition", NULL
);
306 last_partition
[0] = '\0';
308 DEBUGF("=> partition NULL\n");
314 * Performs sanity check for supplied NOR flash partition. Table of existing
315 * NOR flash devices is searched and partition device is located. Alignment
316 * with the granularity of NOR flash sectors is verified.
318 * @param id of the parent device
319 * @param part partition to validate
320 * @return 0 if partition is valid, 1 otherwise
322 static int part_validate_nor(struct mtdids
*id
, struct part_info
*part
)
324 #if (CONFIG_COMMANDS & CFG_CMD_FLASH)
325 /* info for FLASH chips */
326 extern flash_info_t flash_info
[];
332 flash
= &flash_info
[id
->num
];
335 for (i
= 0; i
< flash
->sector_count
; i
++) {
336 if ((flash
->start
[i
] - flash
->start
[0]) == part
->offset
) {
341 if (offset_aligned
== 0) {
342 printf("%s%d: partition (%s) start offset alignment incorrect\n",
343 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
347 end_offset
= part
->offset
+ part
->size
;
348 for (i
= 0; i
< flash
->sector_count
; i
++) {
349 if ((flash
->start
[i
] - flash
->start
[0]) == end_offset
)
353 if (flash
->size
== end_offset
)
356 printf("%s%d: partition (%s) size alignment incorrect\n",
357 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
363 * Performs sanity check for supplied NAND flash partition. Table of existing
364 * NAND flash devices is searched and partition device is located. Alignment
365 * with the granularity of nand erasesize is verified.
367 * @param id of the parent device
368 * @param part partition to validate
369 * @return 0 if partition is valid, 1 otherwise
371 static int part_validate_nand(struct mtdids
*id
, struct part_info
*part
)
373 #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
374 /* info for NAND chips */
377 nand
= &nand_info
[id
->num
];
379 if ((unsigned long)(part
->offset
) % nand
->erasesize
) {
380 printf("%s%d: partition (%s) start offset alignment incorrect\n",
381 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
385 if (part
->size
% nand
->erasesize
) {
386 printf("%s%d: partition (%s) size alignment incorrect\n",
387 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
398 * Performs sanity check for supplied partition. Offset and size are verified
399 * to be within valid range. Partition type is checked and either
400 * parts_validate_nor() or parts_validate_nand() is called with the argument
403 * @param id of the parent device
404 * @param part partition to validate
405 * @return 0 if partition is valid, 1 otherwise
407 static int part_validate(struct mtdids
*id
, struct part_info
*part
)
409 if (part
->size
== SIZE_REMAINING
)
410 part
->size
= id
->size
- part
->offset
;
412 if (part
->offset
> id
->size
) {
413 printf("%s: offset %08lx beyond flash size %08lx\n",
414 id
->mtd_id
, part
->offset
, id
->size
);
418 if ((part
->offset
+ part
->size
) <= part
->offset
) {
419 printf("%s%d: partition (%s) size too big\n",
420 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
424 if (part
->offset
+ part
->size
> id
->size
) {
425 printf("%s: partitioning exceeds flash size\n", id
->mtd_id
);
429 if (id
->type
== MTD_DEV_TYPE_NAND
)
430 return part_validate_nand(id
, part
);
431 else if (id
->type
== MTD_DEV_TYPE_NOR
)
432 return part_validate_nor(id
, part
);
434 DEBUGF("part_validate: invalid dev type\n");
440 * Delete selected partition from the partion list of the specified device.
442 * @param dev device to delete partition from
443 * @param part partition to delete
444 * @return 0 on success, 1 otherwise
446 static int part_del(struct mtd_device
*dev
, struct part_info
*part
)
448 u8 current_save_needed
= 0;
450 /* if there is only one partition, remove whole device */
451 if (dev
->num_parts
== 1)
452 return device_del(dev
);
454 /* otherwise just delete this partition */
456 if (dev
== current_dev
) {
457 /* we are modyfing partitions for the current device,
459 struct part_info
*curr_pi
;
460 curr_pi
= jffs2_part_info(current_dev
, current_partnum
);
463 if (curr_pi
== part
) {
464 printf("current partition deleted, resetting current to 0\n");
466 } else if (part
->offset
<= curr_pi
->offset
) {
469 current_save_needed
= 1;
473 #ifdef CFG_NAND_LEGACY
474 jffs2_free_cache(part
);
476 list_del(&part
->link
);
480 if (current_save_needed
> 0)
489 * Delete all partitions from parts head list, free memory.
491 * @param head list of partitions to delete
493 static void part_delall(struct list_head
*head
)
495 struct list_head
*entry
, *n
;
496 struct part_info
*part_tmp
;
498 /* clean tmp_list and free allocated memory */
499 list_for_each_safe(entry
, n
, head
) {
500 part_tmp
= list_entry(entry
, struct part_info
, link
);
502 #ifdef CFG_NAND_LEGACY
503 jffs2_free_cache(part_tmp
);
511 * Add new partition to the supplied partition list. Make sure partitions are
512 * sorted by offset in ascending order.
514 * @param head list this partition is to be added to
515 * @param new partition to be added
517 static int part_sort_add(struct mtd_device
*dev
, struct part_info
*part
)
519 struct list_head
*entry
;
520 struct part_info
*new_pi
, *curr_pi
;
522 /* link partition to parrent dev */
525 if (list_empty(&dev
->parts
)) {
526 DEBUGF("part_sort_add: list empty\n");
527 list_add(&part
->link
, &dev
->parts
);
533 new_pi
= list_entry(&part
->link
, struct part_info
, link
);
535 /* get current partition info if we are updating current device */
537 if (dev
== current_dev
)
538 curr_pi
= jffs2_part_info(current_dev
, current_partnum
);
540 list_for_each(entry
, &dev
->parts
) {
541 struct part_info
*pi
;
543 pi
= list_entry(entry
, struct part_info
, link
);
545 /* be compliant with kernel cmdline, allow only one partition at offset zero */
546 if ((new_pi
->offset
== pi
->offset
) && (pi
->offset
== 0)) {
547 printf("cannot add second partition at offset 0\n");
551 if (new_pi
->offset
<= pi
->offset
) {
552 list_add_tail(&part
->link
, entry
);
555 if (curr_pi
&& (pi
->offset
<= curr_pi
->offset
)) {
556 /* we are modyfing partitions for the current
557 * device, update current */
567 list_add_tail(&part
->link
, &dev
->parts
);
574 * Add provided partition to the partition list of a given device.
576 * @param dev device to which partition is added
577 * @param part partition to be added
578 * @return 0 on success, 1 otherwise
580 static int part_add(struct mtd_device
*dev
, struct part_info
*part
)
582 /* verify alignment and size */
583 if (part_validate(dev
->id
, part
) != 0)
586 /* partition is ok, add it to the list */
587 if (part_sort_add(dev
, part
) != 0)
594 * Parse one partition definition, allocate memory and return pointer to this
595 * location in retpart.
597 * @param partdef pointer to the partition definition string i.e. <part-def>
598 * @param ret output pointer to next char after parse completes (output)
599 * @param retpart pointer to the allocated partition (output)
600 * @return 0 on success, 1 otherwise
602 static int part_parse(const char *const partdef
, const char **ret
, struct part_info
**retpart
)
604 struct part_info
*part
;
606 unsigned long offset
;
609 unsigned int mask_flags
;
616 /* fetch the partition size */
618 /* assign all remaining space to this partition */
619 DEBUGF("'-': remaining size assigned\n");
620 size
= SIZE_REMAINING
;
623 size
= memsize_parse(p
, &p
);
624 if (size
< MIN_PART_SIZE
) {
625 printf("partition size too small (%lx)\n", size
);
630 /* check for offset */
631 offset
= OFFSET_NOT_SPECIFIED
;
634 offset
= memsize_parse(p
, &p
);
637 /* now look for the name */
640 if ((p
= strchr(name
, ')')) == NULL
) {
641 printf("no closing ) found in partition name\n");
644 name_len
= p
- name
+ 1;
645 if ((name_len
- 1) == 0) {
646 printf("empty partition name\n");
651 /* 0x00000000@0x00000000 */
656 /* test for options */
658 if (strncmp(p
, "ro", 2) == 0) {
659 mask_flags
|= MTD_WRITEABLE_CMD
;
663 /* check for next partition definition */
665 if (size
== SIZE_REMAINING
) {
667 printf("no partitions allowed after a fill-up partition\n");
671 } else if ((*p
== ';') || (*p
== '\0')) {
674 printf("unexpected character '%c' at the end of partition\n", *p
);
679 /* allocate memory */
680 part
= (struct part_info
*)malloc(sizeof(struct part_info
) + name_len
);
682 printf("out of memory\n");
685 memset(part
, 0, sizeof(struct part_info
) + name_len
);
687 part
->offset
= offset
;
688 part
->mask_flags
= mask_flags
;
689 part
->name
= (char *)(part
+ 1);
692 /* copy user provided name */
693 strncpy(part
->name
, name
, name_len
- 1);
696 /* auto generated name in form of size@offset */
697 sprintf(part
->name
, "0x%08lx@0x%08lx", size
, offset
);
701 part
->name
[name_len
- 1] = '\0';
702 INIT_LIST_HEAD(&part
->link
);
704 DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
705 part
->name
, part
->size
,
706 part
->offset
, part
->mask_flags
);
711 #endif/* #ifdef CONFIG_JFFS2_CMDLINE */
714 * Check device number to be within valid range for given device type.
716 * @param dev device to validate
717 * @return 0 if device is valid, 1 otherwise
719 static int device_validate(u8 type
, u8 num
, u32
*size
)
721 if (type
== MTD_DEV_TYPE_NOR
) {
722 #if (CONFIG_COMMANDS & CFG_CMD_FLASH)
723 if (num
< CFG_MAX_FLASH_BANKS
) {
724 extern flash_info_t flash_info
[];
725 *size
= flash_info
[num
].size
;
730 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
731 MTD_DEV_TYPE(type
), num
, CFG_MAX_FLASH_BANKS
- 1);
733 printf("support for FLASH devices not present\n");
735 } else if (type
== MTD_DEV_TYPE_NAND
) {
736 #if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
737 if (num
< CFG_MAX_NAND_DEVICE
) {
738 #ifndef CFG_NAND_LEGACY
739 *size
= nand_info
[num
].size
;
741 extern struct nand_chip nand_dev_desc
[CFG_MAX_NAND_DEVICE
];
742 *size
= nand_dev_desc
[num
].totlen
;
747 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
748 MTD_DEV_TYPE(type
), num
, CFG_MAX_NAND_DEVICE
- 1);
750 printf("support for NAND devices not present\n");
757 #ifdef CONFIG_JFFS2_CMDLINE
759 * Delete all mtd devices from a supplied devices list, free memory allocated for
760 * each device and delete all device partitions.
762 * @return 0 on success, 1 otherwise
764 static int device_delall(struct list_head
*head
)
766 struct list_head
*entry
, *n
;
767 struct mtd_device
*dev_tmp
;
769 /* clean devices list */
770 list_for_each_safe(entry
, n
, head
) {
771 dev_tmp
= list_entry(entry
, struct mtd_device
, link
);
773 part_delall(&dev_tmp
->parts
);
776 INIT_LIST_HEAD(&devices
);
782 * If provided device exists it's partitions are deleted, device is removed
783 * from device list and device memory is freed.
785 * @param dev device to be deleted
786 * @return 0 on success, 1 otherwise
788 static int device_del(struct mtd_device
*dev
)
790 part_delall(&dev
->parts
);
791 list_del(&dev
->link
);
794 if (dev
== current_dev
) {
795 /* we just deleted current device */
796 if (list_empty(&devices
)) {
799 /* reset first partition from first dev from the
800 * devices list as current */
801 current_dev
= list_entry(devices
.next
, struct mtd_device
, link
);
813 * Search global device list and return pointer to the device of type and num
816 * @param type device type
817 * @param num device number
818 * @return NULL if requested device does not exist
820 static struct mtd_device
* device_find(u8 type
, u8 num
)
822 struct list_head
*entry
;
823 struct mtd_device
*dev_tmp
;
825 list_for_each(entry
, &devices
) {
826 dev_tmp
= list_entry(entry
, struct mtd_device
, link
);
828 if ((dev_tmp
->id
->type
== type
) && (dev_tmp
->id
->num
== num
))
836 * Add specified device to the global device list.
838 * @param dev device to be added
840 static void device_add(struct mtd_device
*dev
)
842 u8 current_save_needed
= 0;
844 if (list_empty(&devices
)) {
847 current_save_needed
= 1;
850 list_add_tail(&dev
->link
, &devices
);
852 if (current_save_needed
> 0)
859 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
860 * return pointer to the device structure.
862 * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
863 * @param ret output pointer to next char after parse completes (output)
864 * @param retdev pointer to the allocated device (output)
865 * @return 0 on success, 1 otherwise
867 static int device_parse(const char *const mtd_dev
, const char **ret
, struct mtd_device
**retdev
)
869 struct mtd_device
*dev
;
870 struct part_info
*part
;
873 unsigned int mtd_id_len
;
874 const char *p
, *pend
;
876 struct list_head
*entry
, *n
;
885 DEBUGF("===device_parse===\n");
889 if (!(p
= strchr(mtd_id
, ':'))) {
890 printf("no <mtd-id> identifier\n");
893 mtd_id_len
= p
- mtd_id
+ 1;
896 /* verify if we have a valid device specified */
897 if ((id
= id_find_by_mtd_id(mtd_id
, mtd_id_len
- 1)) == NULL
) {
898 printf("invalid mtd device '%.*s'\n", mtd_id_len
- 1, mtd_id
);
902 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
903 id
->type
, MTD_DEV_TYPE(id
->type
),
904 id
->num
, id
->mtd_id
);
905 pend
= strchr(p
, ';');
906 DEBUGF("parsing partitions %.*s\n", (pend
? pend
- p
: strlen(p
)), p
);
909 /* parse partitions */
913 if ((dev
= device_find(id
->type
, id
->num
)) != NULL
) {
914 /* if device already exists start at the end of the last partition */
915 part
= list_entry(dev
->parts
.prev
, struct part_info
, link
);
916 offset
= part
->offset
+ part
->size
;
919 while (p
&& (*p
!= '\0') && (*p
!= ';')) {
921 if ((part_parse(p
, &p
, &part
) != 0) || (!part
))
924 /* calculate offset when not specified */
925 if (part
->offset
== OFFSET_NOT_SPECIFIED
)
926 part
->offset
= offset
;
928 offset
= part
->offset
;
930 /* verify alignment and size */
931 if (part_validate(id
, part
) != 0)
934 offset
+= part
->size
;
936 /* partition is ok, add it to the list */
937 list_add_tail(&part
->link
, &tmp_list
);
942 part_delall(&tmp_list
);
946 if (num_parts
== 0) {
947 printf("no partitions for device %s%d (%s)\n",
948 MTD_DEV_TYPE(id
->type
), id
->num
, id
->mtd_id
);
952 DEBUGF("\ntotal partitions: %d\n", num_parts
);
954 /* check for next device presence */
958 } else if (*p
== '\0') {
961 printf("unexpected character '%c' at the end of device\n", *p
);
967 /* allocate memory for mtd_device structure */
968 if ((dev
= (struct mtd_device
*)malloc(sizeof(struct mtd_device
))) == NULL
) {
969 printf("out of memory\n");
972 memset(dev
, 0, sizeof(struct mtd_device
));
974 dev
->num_parts
= 0; /* part_sort_add increments num_parts */
975 INIT_LIST_HEAD(&dev
->parts
);
976 INIT_LIST_HEAD(&dev
->link
);
978 /* move partitions from tmp_list to dev->parts */
979 list_for_each_safe(entry
, n
, &tmp_list
) {
980 part
= list_entry(entry
, struct part_info
, link
);
982 if (part_sort_add(dev
, part
) != 0) {
995 * Initialize global device list.
997 * @return 0 on success, 1 otherwise
999 static int devices_init(void)
1001 last_parts
[0] = '\0';
1005 return device_delall(&devices
);
1009 * Search global mtdids list and find id of requested type and number.
1011 * @return pointer to the id if it exists, NULL otherwise
1013 static struct mtdids
* id_find(u8 type
, u8 num
)
1015 struct list_head
*entry
;
1018 list_for_each(entry
, &mtdids
) {
1019 id
= list_entry(entry
, struct mtdids
, link
);
1021 if ((id
->type
== type
) && (id
->num
== num
))
1029 * Search global mtdids list and find id of a requested mtd_id.
1031 * Note: first argument is not null terminated.
1033 * @param mtd_id string containing requested mtd_id
1034 * @param mtd_id_len length of supplied mtd_id
1035 * @return pointer to the id if it exists, NULL otherwise
1037 static struct mtdids
* id_find_by_mtd_id(const char *mtd_id
, unsigned int mtd_id_len
)
1039 struct list_head
*entry
;
1042 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1043 mtd_id_len
, mtd_id
, mtd_id_len
);
1045 list_for_each(entry
, &mtdids
) {
1046 id
= list_entry(entry
, struct mtdids
, link
);
1048 DEBUGF("entry: '%s' (len = %d)\n",
1049 id
->mtd_id
, strlen(id
->mtd_id
));
1051 if (mtd_id_len
!= strlen(id
->mtd_id
))
1053 if (strncmp(id
->mtd_id
, mtd_id
, mtd_id_len
) == 0)
1059 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1062 * Parse device id string <dev-id> := 'nand'|'nor'<dev-num>, return device
1065 * @param id string describing device id
1066 * @param ret_id output pointer to next char after parse completes (output)
1067 * @param dev_type parsed device type (output)
1068 * @param dev_num parsed device number (output)
1069 * @return 0 on success, 1 otherwise
1071 int id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
)
1076 if (strncmp(p
, "nand", 4) == 0) {
1077 *dev_type
= MTD_DEV_TYPE_NAND
;
1079 } else if (strncmp(p
, "nor", 3) == 0) {
1080 *dev_type
= MTD_DEV_TYPE_NOR
;
1083 printf("incorrect device type in %s\n", id
);
1088 printf("incorrect device number in %s\n", id
);
1092 *dev_num
= simple_strtoul(p
, (char **)&p
, 0);
1098 #ifdef CONFIG_JFFS2_CMDLINE
1100 * Process all devices and generate corresponding mtdparts string describing
1101 * all partitions on all devices.
1103 * @param buf output buffer holding generated mtdparts string (output)
1104 * @param buflen buffer size
1105 * @return 0 on success, 1 otherwise
1107 static int generate_mtdparts(char *buf
, u32 buflen
)
1109 struct list_head
*pentry
, *dentry
;
1110 struct mtd_device
*dev
;
1111 struct part_info
*part
, *prev_part
;
1114 u32 size
, offset
, len
, part_cnt
;
1115 u32 maxlen
= buflen
- 1;
1117 DEBUGF("--- generate_mtdparts ---\n");
1119 if (list_empty(&devices
)) {
1124 sprintf(p
, "mtdparts=");
1127 list_for_each(dentry
, &devices
) {
1128 dev
= list_entry(dentry
, struct mtd_device
, link
);
1131 len
= strlen(dev
->id
->mtd_id
) + 1;
1134 memcpy(p
, dev
->id
->mtd_id
, len
- 1);
1139 /* format partitions */
1142 list_for_each(pentry
, &dev
->parts
) {
1143 part
= list_entry(pentry
, struct part_info
, link
);
1145 offset
= part
->offset
;
1148 /* partition size */
1149 memsize_format(tmpbuf
, size
);
1150 len
= strlen(tmpbuf
);
1153 memcpy(p
, tmpbuf
, len
);
1158 /* add offset only when there is a gap between
1160 if ((!prev_part
&& (offset
!= 0)) ||
1161 (prev_part
&& ((prev_part
->offset
+ prev_part
->size
) != part
->offset
))) {
1163 memsize_format(tmpbuf
, offset
);
1164 len
= strlen(tmpbuf
) + 1;
1168 memcpy(p
, tmpbuf
, len
- 1);
1173 /* copy name only if user supplied */
1174 if(!part
->auto_name
) {
1175 len
= strlen(part
->name
) + 2;
1180 memcpy(p
, part
->name
, len
- 2);
1187 if (part
->mask_flags
&& MTD_WRITEABLE_CMD
) {
1196 /* print ',' separator if there are other partitions
1198 if (dev
->num_parts
> part_cnt
) {
1206 /* print ';' separator if there are other devices following */
1207 if (dentry
->next
!= &devices
) {
1215 /* we still have at least one char left, as we decremented maxlen at
1222 last_parts
[0] = '\0';
1227 * Call generate_mtdparts to process all devices and generate corresponding
1228 * mtdparts string, save it in mtdparts environment variable.
1230 * @param buf output buffer holding generated mtdparts string (output)
1231 * @param buflen buffer size
1232 * @return 0 on success, 1 otherwise
1234 static int generate_mtdparts_save(char *buf
, u32 buflen
)
1238 ret
= generate_mtdparts(buf
, buflen
);
1240 if ((buf
[0] != '\0') && (ret
== 0))
1241 setenv("mtdparts", buf
);
1243 setenv("mtdparts", NULL
);
1249 * Format and print out a partition list for each device from global device
1252 static void list_partitions(void)
1254 struct list_head
*dentry
, *pentry
;
1255 struct part_info
*part
;
1256 struct mtd_device
*dev
;
1259 DEBUGF("\n---list_partitions---\n");
1260 list_for_each(dentry
, &devices
) {
1261 dev
= list_entry(dentry
, struct mtd_device
, link
);
1262 printf("\ndevice %s%d <%s>, # parts = %d\n",
1263 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
,
1264 dev
->id
->mtd_id
, dev
->num_parts
);
1265 printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
1267 /* list partitions for given device */
1269 list_for_each(pentry
, &dev
->parts
) {
1270 part
= list_entry(pentry
, struct part_info
, link
);
1271 printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
1272 part_num
, part
->name
, part
->size
,
1273 part
->offset
, part
->mask_flags
);
1278 if (list_empty(&devices
))
1279 printf("no partitions defined\n");
1281 /* current_dev is not NULL only when we have non empty device list */
1283 part
= jffs2_part_info(current_dev
, current_partnum
);
1285 printf("\nactive partition: %s%d,%d - (%s) 0x%08lx @ 0x%08lx\n",
1286 MTD_DEV_TYPE(current_dev
->id
->type
),
1287 current_dev
->id
->num
, current_partnum
,
1288 part
->name
, part
->size
, part
->offset
);
1290 printf("could not get current partition info\n\n");
1294 printf("\ndefaults:\n");
1295 printf("mtdids : %s\n", mtdids_default
);
1296 printf("mtdparts: %s\n", mtdparts_default
);
1300 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1301 * corresponding device and verify partition number.
1303 * @param id string describing device and partition or partition name
1304 * @param dev pointer to the requested device (output)
1305 * @param part_num verified partition number (output)
1306 * @param part pointer to requested partition (output)
1307 * @return 0 on success, 1 otherwise
1309 int find_dev_and_part(const char *id
, struct mtd_device
**dev
,
1310 u8
*part_num
, struct part_info
**part
)
1312 struct list_head
*dentry
, *pentry
;
1313 u8 type
, dnum
, pnum
;
1316 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id
);
1318 list_for_each(dentry
, &devices
) {
1320 *dev
= list_entry(dentry
, struct mtd_device
, link
);
1321 list_for_each(pentry
, &(*dev
)->parts
) {
1322 *part
= list_entry(pentry
, struct part_info
, link
);
1323 if (strcmp((*part
)->name
, id
) == 0)
1334 if (id_parse(p
, &p
, &type
, &dnum
) != 0)
1337 if ((*p
++ != ',') || (*p
== '\0')) {
1338 printf("no partition number specified\n");
1341 pnum
= simple_strtoul(p
, (char **)&p
, 0);
1343 printf("unexpected trailing character '%c'\n", *p
);
1347 if ((*dev
= device_find(type
, dnum
)) == NULL
) {
1348 printf("no such device %s%d\n", MTD_DEV_TYPE(type
), dnum
);
1352 if ((*part
= jffs2_part_info(*dev
, pnum
)) == NULL
) {
1353 printf("no such partition\n");
1364 * Find and delete partition. For partition id format see find_dev_and_part().
1366 * @param id string describing device and partition
1367 * @return 0 on success, 1 otherwise
1369 static int delete_partition(const char *id
)
1372 struct mtd_device
*dev
;
1373 struct part_info
*part
;
1375 if (find_dev_and_part(id
, &dev
, &pnum
, &part
) == 0) {
1377 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1378 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
, pnum
,
1379 part
->name
, part
->size
, part
->offset
);
1381 if (part_del(dev
, part
) != 0)
1384 if (generate_mtdparts_save(last_parts
, MTDPARTS_MAXLEN
) != 0) {
1385 printf("generated mtdparts too long, reseting to null\n");
1391 printf("partition %s not found\n", id
);
1396 * Accept character string describing mtd partitions and call device_parse()
1397 * for each entry. Add created devices to the global devices list.
1399 * @param mtdparts string specifing mtd partitions
1400 * @return 0 on success, 1 otherwise
1402 static int parse_mtdparts(const char *const mtdparts
)
1404 const char *p
= mtdparts
;
1405 struct mtd_device
*dev
;
1408 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p
);
1410 /* delete all devices and partitions */
1411 if (devices_init() != 0) {
1412 printf("could not initialise device list\n");
1416 /* re-read 'mtdparts' variable, devices_init may be updating env */
1417 p
= getenv("mtdparts");
1419 if (strncmp(p
, "mtdparts=", 9) != 0) {
1420 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1425 while (p
&& (*p
!= '\0')) {
1427 if ((device_parse(p
, &p
, &dev
) != 0) || (!dev
))
1430 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev
->id
->type
),
1431 dev
->id
->num
, dev
->id
->mtd_id
);
1433 /* check if parsed device is already on the list */
1434 if (device_find(dev
->id
->type
, dev
->id
->num
) != NULL
) {
1435 printf("device %s%d redefined, please correct mtdparts variable\n",
1436 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
);
1440 list_add_tail(&dev
->link
, &devices
);
1444 device_delall(&devices
);
1452 * Parse provided string describing mtdids mapping (see file header for mtdids
1453 * variable format). Allocate memory for each entry and add all found entries
1454 * to the global mtdids list.
1456 * @param ids mapping string
1457 * @return 0 on success, 1 otherwise
1459 static int parse_mtdids(const char *const ids
)
1461 const char *p
= ids
;
1465 struct list_head
*entry
, *n
;
1466 struct mtdids
*id_tmp
;
1471 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids
);
1473 /* clean global mtdids list */
1474 list_for_each_safe(entry
, n
, &mtdids
) {
1475 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1476 DEBUGF("mtdids del: %d %d\n", id_tmp
->type
, id_tmp
->num
);
1481 INIT_LIST_HEAD(&mtdids
);
1483 while(p
&& (*p
!= '\0')) {
1486 /* parse 'nor'|'nand'<dev-num> */
1487 if (id_parse(p
, &p
, &type
, &num
) != 0)
1491 printf("mtdids: incorrect <dev-num>\n");
1496 /* check if requested device exists */
1497 if (device_validate(type
, num
, &size
) != 0)
1500 /* locate <mtd-id> */
1502 if ((p
= strchr(mtd_id
, ',')) != NULL
) {
1503 mtd_id_len
= p
- mtd_id
+ 1;
1506 mtd_id_len
= strlen(mtd_id
) + 1;
1508 if (mtd_id_len
== 0) {
1509 printf("mtdids: no <mtd-id> identifier\n");
1513 /* check if this id is already on the list */
1514 int double_entry
= 0;
1515 list_for_each(entry
, &mtdids
) {
1516 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1517 if ((id_tmp
->type
== type
) && (id_tmp
->num
== num
)) {
1523 printf("device id %s%d redefined, please correct mtdids variable\n",
1524 MTD_DEV_TYPE(type
), num
);
1528 /* allocate mtdids structure */
1529 if (!(id
= (struct mtdids
*)malloc(sizeof(struct mtdids
) + mtd_id_len
))) {
1530 printf("out of memory\n");
1533 memset(id
, 0, sizeof(struct mtdids
) + mtd_id_len
);
1537 id
->mtd_id
= (char *)(id
+ 1);
1538 strncpy(id
->mtd_id
, mtd_id
, mtd_id_len
- 1);
1539 id
->mtd_id
[mtd_id_len
- 1] = '\0';
1540 INIT_LIST_HEAD(&id
->link
);
1542 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1543 MTD_DEV_TYPE(id
->type
), id
->num
,
1544 id
->size
, id
->mtd_id
);
1546 list_add_tail(&id
->link
, &mtdids
);
1550 /* clean mtdids list and free allocated memory */
1551 list_for_each_safe(entry
, n
, &mtdids
) {
1552 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1563 * Parse and initialize global mtdids mapping and create global
1564 * device/partition list.
1566 * @return 0 on success, 1 otherwise
1568 int mtdparts_init(void)
1570 static int initialized
= 0;
1571 const char *ids
, *parts
;
1572 const char *current_partition
;
1574 char tmp_ep
[PARTITION_MAXLEN
];
1576 DEBUGF("\n---mtdparts_init---\n");
1578 INIT_LIST_HEAD(&mtdids
);
1579 INIT_LIST_HEAD(&devices
);
1580 memset(last_ids
, 0, MTDIDS_MAXLEN
);
1581 memset(last_parts
, 0, MTDPARTS_MAXLEN
);
1582 memset(last_partition
, 0, PARTITION_MAXLEN
);
1587 ids
= getenv("mtdids");
1588 parts
= getenv("mtdparts");
1589 current_partition
= getenv("partition");
1591 /* save it for later parsing, cannot rely on current partition pointer
1592 * as 'partition' variable may be updated during init */
1594 if (current_partition
)
1595 strncpy(tmp_ep
, current_partition
, PARTITION_MAXLEN
);
1597 DEBUGF("last_ids : %s\n", last_ids
);
1598 DEBUGF("env_ids : %s\n", ids
);
1599 DEBUGF("last_parts: %s\n", last_parts
);
1600 DEBUGF("env_parts : %s\n\n", parts
);
1602 DEBUGF("last_partition : %s\n", last_partition
);
1603 DEBUGF("env_partition : %s\n", current_partition
);
1605 /* if mtdids varible is empty try to use defaults */
1607 if (mtdids_default
) {
1608 DEBUGF("mtdids variable not defined, using default\n");
1609 ids
= mtdids_default
;
1610 setenv("mtdids", (char *)ids
);
1612 printf("mtdids not defined, no default present\n");
1616 if (strlen(ids
) > MTDIDS_MAXLEN
- 1) {
1617 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN
);
1621 /* do no try to use defaults when mtdparts variable is not defined,
1622 * just check the length */
1624 printf("mtdparts variable not set, see 'help mtdparts'\n");
1626 if (parts
&& (strlen(parts
) > MTDPARTS_MAXLEN
- 1)) {
1627 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN
);
1631 /* check if we have already parsed those mtdids */
1632 if ((last_ids
[0] != '\0') && (strcmp(last_ids
, ids
) == 0)) {
1637 if (parse_mtdids(ids
) != 0) {
1642 /* ok it's good, save new ids */
1643 strncpy(last_ids
, ids
, MTDIDS_MAXLEN
);
1646 /* parse partitions if either mtdparts or mtdids were updated */
1647 if (parts
&& ((last_parts
[0] == '\0') || ((strcmp(last_parts
, parts
) != 0)) || ids_changed
)) {
1648 if (parse_mtdparts(parts
) != 0)
1651 if (list_empty(&devices
)) {
1652 printf("mtdparts_init: no valid partitions\n");
1656 /* ok it's good, save new parts */
1657 strncpy(last_parts
, parts
, MTDPARTS_MAXLEN
);
1659 /* reset first partition from first dev from the list as current */
1660 current_dev
= list_entry(devices
.next
, struct mtd_device
, link
);
1661 current_partnum
= 0;
1664 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1665 MTD_DEV_TYPE(current_dev
->id
->type
),
1666 current_dev
->id
->num
, current_partnum
);
1669 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1670 if (!parts
&& (last_parts
[0] != '\0'))
1671 return devices_init();
1673 /* do not process current partition if mtdparts variable is null */
1677 /* is current partition set in environment? if so, use it */
1678 if ((tmp_ep
[0] != '\0') && (strcmp(tmp_ep
, last_partition
) != 0)) {
1679 struct part_info
*p
;
1680 struct mtd_device
*cdev
;
1683 DEBUGF("--- getting current partition: %s\n", tmp_ep
);
1685 if (find_dev_and_part(tmp_ep
, &cdev
, &pnum
, &p
) == 0) {
1687 current_partnum
= pnum
;
1690 } else if (getenv("partition") == NULL
) {
1691 DEBUGF("no partition variable set, setting...\n");
1697 #else /* #ifdef CONFIG_JFFS2_CMDLINE */
1699 * 'Static' version of command line mtdparts_init() routine. Single partition on
1700 * a single device configuration.
1704 * Parse and initialize global mtdids mapping and create global
1705 * device/partition list.
1707 * @return 0 on success, 1 otherwise
1709 int mtdparts_init(void)
1711 static int initialized
= 0;
1715 DEBUGF("\n---mtdparts_init---\n");
1718 struct part_info
*part
;
1721 current_dev
= (struct mtd_device
*)
1722 malloc(sizeof(struct mtd_device
) +
1723 sizeof(struct part_info
) +
1724 sizeof(struct mtdids
));
1726 printf("out of memory\n");
1729 memset(current_dev
, 0, sizeof(struct mtd_device
) +
1730 sizeof(struct part_info
) + sizeof(struct mtdids
));
1732 id
= (struct mtdids
*)(current_dev
+ 1);
1733 part
= (struct part_info
*)(id
+ 1);
1736 id
->mtd_id
= "single part";
1738 #if defined(CONFIG_JFFS2_DEV)
1739 dev_name
= CONFIG_JFFS2_DEV
;
1744 if ((id_parse(dev_name
, NULL
, &id
->type
, &id
->num
) != 0) ||
1745 (device_validate(id
->type
, id
->num
, &size
) != 0)) {
1746 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id
->type
), id
->num
);
1751 INIT_LIST_HEAD(&id
->link
);
1753 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1754 id
->type
, id
->num
, id
->size
, id
->mtd_id
);
1757 part
->name
= "static";
1758 part
->auto_name
= 0;
1760 #if defined(CONFIG_JFFS2_PART_SIZE)
1761 part
->size
= CONFIG_JFFS2_PART_SIZE
;
1763 part
->size
= SIZE_REMAINING
;
1766 #if defined(CONFIG_JFFS2_PART_OFFSET)
1767 part
->offset
= CONFIG_JFFS2_PART_OFFSET
;
1769 part
->offset
= 0x00000000;
1772 part
->dev
= current_dev
;
1773 INIT_LIST_HEAD(&part
->link
);
1775 /* recalculate size if needed */
1776 if (part
->size
== SIZE_REMAINING
)
1777 part
->size
= id
->size
- part
->offset
;
1779 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1780 part
->name
, part
->size
, part
->offset
);
1783 current_dev
->id
= id
;
1784 INIT_LIST_HEAD(¤t_dev
->link
);
1785 current_dev
->num_parts
= 1;
1786 INIT_LIST_HEAD(¤t_dev
->parts
);
1787 list_add(&part
->link
, ¤t_dev
->parts
);
1792 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1795 * Return pointer to the partition of a requested number from a requested
1798 * @param dev device that is to be searched for a partition
1799 * @param part_num requested partition number
1800 * @return pointer to the part_info, NULL otherwise
1802 static struct part_info
* jffs2_part_info(struct mtd_device
*dev
, unsigned int part_num
)
1804 struct list_head
*entry
;
1805 struct part_info
*part
;
1811 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1812 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
1813 dev
->id
->num
, dev
->id
->mtd_id
);
1815 if (part_num
>= dev
->num_parts
) {
1816 printf("invalid partition number %d for device %s%d (%s)\n",
1817 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
1818 dev
->id
->num
, dev
->id
->mtd_id
);
1822 /* locate partition number, return it */
1824 list_for_each(entry
, &dev
->parts
) {
1825 part
= list_entry(entry
, struct part_info
, link
);
1827 if (part_num
== num
++) {
1835 /***************************************************/
1836 /* U-boot commands */
1837 /***************************************************/
1840 * Routine implementing fsload u-boot command. This routine tries to load
1841 * a requested file from jffs2/cramfs filesystem on a current partition.
1843 * @param cmdtp command internal data
1844 * @param flag command flag
1845 * @param argc number of arguments supplied to the command
1846 * @param argv arguments list
1847 * @return 0 on success, 1 otherwise
1849 int do_jffs2_fsload(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1854 struct part_info
*part
;
1855 ulong offset
= load_addr
;
1857 /* pre-set Boot file name */
1858 if ((filename
= getenv("bootfile")) == NULL
) {
1859 filename
= "uImage";
1866 offset
= simple_strtoul(argv
[1], NULL
, 16);
1871 /* make sure we are in sync with env variables */
1872 if (mtdparts_init() !=0)
1875 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
1877 /* check partition type for cramfs */
1878 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
1879 printf("### %s loading '%s' to 0x%lx\n", fsname
, filename
, offset
);
1881 if (cramfs_check(part
)) {
1882 size
= cramfs_load ((char *) offset
, part
, filename
);
1884 /* if this is not cramfs assume jffs2 */
1885 size
= jffs2_1pass_load((char *)offset
, part
, filename
);
1890 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
1891 fsname
, size
, offset
);
1892 sprintf(buf
, "%x", size
);
1893 setenv("filesize", buf
);
1895 printf("### %s LOAD ERROR<%x> for %s!\n", fsname
, size
, filename
);
1904 * Routine implementing u-boot ls command which lists content of a given
1905 * directory on a current partition.
1907 * @param cmdtp command internal data
1908 * @param flag command flag
1909 * @param argc number of arguments supplied to the command
1910 * @param argv arguments list
1911 * @return 0 on success, 1 otherwise
1913 int do_jffs2_ls(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1915 char *filename
= "/";
1917 struct part_info
*part
;
1922 /* make sure we are in sync with env variables */
1923 if (mtdparts_init() !=0)
1926 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
1928 /* check partition type for cramfs */
1929 if (cramfs_check(part
)) {
1930 ret
= cramfs_ls (part
, filename
);
1932 /* if this is not cramfs assume jffs2 */
1933 ret
= jffs2_1pass_ls(part
, filename
);
1942 * Routine implementing u-boot fsinfo command. This routine prints out
1943 * miscellaneous filesystem informations/statistics.
1945 * @param cmdtp command internal data
1946 * @param flag command flag
1947 * @param argc number of arguments supplied to the command
1948 * @param argv arguments list
1949 * @return 0 on success, 1 otherwise
1951 int do_jffs2_fsinfo(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1953 struct part_info
*part
;
1957 /* make sure we are in sync with env variables */
1958 if (mtdparts_init() !=0)
1961 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
1963 /* check partition type for cramfs */
1964 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
1965 printf("### filesystem type is %s\n", fsname
);
1967 if (cramfs_check(part
)) {
1968 ret
= cramfs_info (part
);
1970 /* if this is not cramfs assume jffs2 */
1971 ret
= jffs2_1pass_info(part
);
1979 /* command line only */
1980 #ifdef CONFIG_JFFS2_CMDLINE
1982 * Routine implementing u-boot chpart command. Sets new current partition based
1983 * on the user supplied partition id. For partition id format see find_dev_and_part().
1985 * @param cmdtp command internal data
1986 * @param flag command flag
1987 * @param argc number of arguments supplied to the command
1988 * @param argv arguments list
1989 * @return 0 on success, 1 otherwise
1991 int do_jffs2_chpart(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
1993 /* command line only */
1994 struct mtd_device
*dev
;
1995 struct part_info
*part
;
1998 if (mtdparts_init() !=0)
2002 printf("no partition id specified\n");
2006 if (find_dev_and_part(argv
[1], &dev
, &pnum
, &part
) != 0)
2010 current_partnum
= pnum
;
2013 printf("partition changed to %s%d,%d\n",
2014 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
, pnum
);
2020 * Routine implementing u-boot mtdparts command. Initialize/update default global
2021 * partition list and process user partition request (list, add, del).
2023 * @param cmdtp command internal data
2024 * @param flag command flag
2025 * @param argc number of arguments supplied to the command
2026 * @param argv arguments list
2027 * @return 0 on success, 1 otherwise
2029 int do_jffs2_mtdparts(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2032 if (strcmp(argv
[1], "default") == 0) {
2033 setenv("mtdids", (char *)mtdids_default
);
2034 setenv("mtdparts", (char *)mtdparts_default
);
2035 setenv("partition", NULL
);
2039 } else if (strcmp(argv
[1], "delall") == 0) {
2040 /* this may be the first run, initialize lists if needed */
2043 setenv("mtdparts", NULL
);
2045 /* devices_init() calls current_save() */
2046 return devices_init();
2050 /* make sure we are in sync with env variables */
2051 if (mtdparts_init() != 0)
2059 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2060 if (((argc
== 5) || (argc
== 6)) && (strcmp(argv
[1], "add") == 0)) {
2061 #define PART_ADD_DESC_MAXLEN 64
2062 char tmpbuf
[PART_ADD_DESC_MAXLEN
];
2064 struct mtd_device
*dev
;
2065 struct mtd_device
*dev_tmp
;
2067 struct part_info
*p
;
2069 if (id_parse(argv
[2], NULL
, &type
, &num
) != 0)
2072 if ((id
= id_find(type
, num
)) == NULL
) {
2073 printf("no such device %s defined in mtdids variable\n", argv
[2]);
2077 len
= strlen(id
->mtd_id
) + 1; /* 'mtd_id:' */
2078 len
+= strlen(argv
[3]); /* size@offset */
2079 len
+= strlen(argv
[4]) + 2; /* '(' name ')' */
2080 if (argv
[5] && (strlen(argv
[5]) == 2))
2081 len
+= 2; /* 'ro' */
2083 if (len
>= PART_ADD_DESC_MAXLEN
) {
2084 printf("too long partition description\n");
2087 sprintf(tmpbuf
, "%s:%s(%s)%s",
2088 id
->mtd_id
, argv
[3], argv
[4], argv
[5] ? argv
[5] : "");
2089 DEBUGF("add tmpbuf: %s\n", tmpbuf
);
2091 if ((device_parse(tmpbuf
, NULL
, &dev
) != 0) || (!dev
))
2094 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev
->id
->type
),
2095 dev
->id
->num
, dev
->id
->mtd_id
);
2097 if ((dev_tmp
= device_find(dev
->id
->type
, dev
->id
->num
)) == NULL
) {
2100 /* merge new partition with existing ones*/
2101 p
= list_entry(dev
->parts
.next
, struct part_info
, link
);
2102 if (part_add(dev_tmp
, p
) != 0) {
2108 if (generate_mtdparts_save(last_parts
, MTDPARTS_MAXLEN
) != 0) {
2109 printf("generated mtdparts too long, reseting to null\n");
2116 /* mtdparts del part-id */
2117 if ((argc
== 3) && (strcmp(argv
[1], "del") == 0)) {
2118 DEBUGF("del: part-id = %s\n", argv
[2]);
2120 return delete_partition(argv
[2]);
2123 printf ("Usage:\n%s\n", cmdtp
->usage
);
2126 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2128 /***************************************************/
2130 fsload
, 3, 0, do_jffs2_fsload
,
2131 "fsload\t- load binary file from a filesystem image\n",
2132 "[ off ] [ filename ]\n"
2133 " - load binary file from flash bank\n"
2134 " with offset 'off'\n"
2137 ls
, 2, 1, do_jffs2_ls
,
2138 "ls\t- list files in a directory (default /)\n",
2140 " - list files in a directory.\n"
2144 fsinfo
, 1, 1, do_jffs2_fsinfo
,
2145 "fsinfo\t- print information about filesystems\n",
2146 " - print information about filesystems\n"
2149 #ifdef CONFIG_JFFS2_CMDLINE
2151 chpart
, 2, 0, do_jffs2_chpart
,
2152 "chpart\t- change active partition\n",
2154 " - change active partition (e.g. part-id = nand0,1)\n"
2158 mtdparts
, 6, 0, do_jffs2_mtdparts
,
2159 "mtdparts- define flash/nand partitions\n",
2161 " - list partition table\n"
2163 " - delete all partitions\n"
2164 "mtdparts del part-id\n"
2165 " - delete partition (e.g. part-id = nand0,1)\n"
2166 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2167 " - add partition\n"
2168 "mtdparts default\n"
2169 " - reset partition table to defaults\n\n"
2171 "this command uses three environment variables:\n\n"
2172 "'partition' - keeps current partition identifier\n\n"
2173 "partition := <part-id>\n"
2174 "<part-id> := <dev-id>,part_num\n\n"
2175 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2176 "mtdids=<idmap>[,<idmap>,...]\n\n"
2177 "<idmap> := <dev-id>=<mtd-id>\n"
2178 "<dev-id> := 'nand'|'nor'<dev-num>\n"
2179 "<dev-num> := mtd device number, 0...\n"
2180 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2181 "'mtdparts' - partition list\n\n"
2182 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2183 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2184 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2185 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2186 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2187 "<offset> := partition start offset within the device\n"
2188 "<name> := '(' NAME ')'\n"
2189 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2191 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2193 /***************************************************/
2195 #endif /* CFG_CMD_JFFS2 */