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'|'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
[];
342 u32 end_offset
, sector_size
= 0;
345 flash
= &flash_info
[id
->num
];
347 /* size of last sector */
348 part
->sector_size
= flash
->size
-
349 (flash
->start
[flash
->sector_count
-1] - flash
->start
[0]);
352 for (i
= 0; i
< flash
->sector_count
; i
++) {
353 if ((flash
->start
[i
] - flash
->start
[0]) == part
->offset
) {
358 if (offset_aligned
== 0) {
359 printf("%s%d: partition (%s) start offset alignment incorrect\n",
360 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
364 end_offset
= part
->offset
+ part
->size
;
366 for (i
= 0; i
< flash
->sector_count
; i
++) {
368 sector_size
= flash
->start
[i
] - flash
->start
[i
-1];
369 if (part
->sector_size
< sector_size
)
370 part
->sector_size
= sector_size
;
372 if ((flash
->start
[i
] - flash
->start
[0]) == end_offset
)
376 if (offset_aligned
|| flash
->size
== end_offset
)
379 printf("%s%d: partition (%s) size alignment incorrect\n",
380 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
386 * Performs sanity check for supplied NAND flash partition. Table of existing
387 * NAND flash devices is searched and partition device is located. Alignment
388 * with the granularity of nand erasesize is verified.
390 * @param id of the parent device
391 * @param part partition to validate
392 * @return 0 if partition is valid, 1 otherwise
394 static int part_validate_nand(struct mtdids
*id
, struct part_info
*part
)
396 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
397 /* info for NAND chips */
400 nand
= &nand_info
[id
->num
];
402 part
->sector_size
= nand
->erasesize
;
404 if ((unsigned long)(part
->offset
) % nand
->erasesize
) {
405 printf("%s%d: partition (%s) start offset alignment incorrect\n",
406 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
410 if (part
->size
% nand
->erasesize
) {
411 printf("%s%d: partition (%s) size alignment incorrect\n",
412 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
423 * Performs sanity check for supplied OneNAND flash partition.
424 * Table of existing OneNAND flash devices is searched and partition device
425 * is located. Alignment with the granularity of nand erasesize is verified.
427 * @param id of the parent device
428 * @param part partition to validate
429 * @return 0 if partition is valid, 1 otherwise
431 static int part_validate_onenand(struct mtdids
*id
, struct part_info
*part
)
433 #if defined(CONFIG_CMD_ONENAND)
434 /* info for OneNAND chips */
435 struct mtd_info
*mtd
;
439 part
->sector_size
= mtd
->erasesize
;
441 if ((unsigned long)(part
->offset
) % mtd
->erasesize
) {
442 printf("%s%d: partition (%s) start offset"
443 "alignment incorrect\n",
444 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
448 if (part
->size
% mtd
->erasesize
) {
449 printf("%s%d: partition (%s) size alignment incorrect\n",
450 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
462 * Performs sanity check for supplied partition. Offset and size are verified
463 * to be within valid range. Partition type is checked and either
464 * parts_validate_nor() or parts_validate_nand() is called with the argument
467 * @param id of the parent device
468 * @param part partition to validate
469 * @return 0 if partition is valid, 1 otherwise
471 static int part_validate(struct mtdids
*id
, struct part_info
*part
)
473 if (part
->size
== SIZE_REMAINING
)
474 part
->size
= id
->size
- part
->offset
;
476 if (part
->offset
> id
->size
) {
477 printf("%s: offset %08x beyond flash size %08x\n",
478 id
->mtd_id
, part
->offset
, id
->size
);
482 if ((part
->offset
+ part
->size
) <= part
->offset
) {
483 printf("%s%d: partition (%s) size too big\n",
484 MTD_DEV_TYPE(id
->type
), id
->num
, part
->name
);
488 if (part
->offset
+ part
->size
> id
->size
) {
489 printf("%s: partitioning exceeds flash size\n", id
->mtd_id
);
493 if (id
->type
== MTD_DEV_TYPE_NAND
)
494 return part_validate_nand(id
, part
);
495 else if (id
->type
== MTD_DEV_TYPE_NOR
)
496 return part_validate_nor(id
, part
);
497 else if (id
->type
== MTD_DEV_TYPE_ONENAND
)
498 return part_validate_onenand(id
, part
);
500 DEBUGF("part_validate: invalid dev type\n");
506 * Delete selected partition from the partion list of the specified device.
508 * @param dev device to delete partition from
509 * @param part partition to delete
510 * @return 0 on success, 1 otherwise
512 static int part_del(struct mtd_device
*dev
, struct part_info
*part
)
514 u8 current_save_needed
= 0;
516 /* if there is only one partition, remove whole device */
517 if (dev
->num_parts
== 1)
518 return device_del(dev
);
520 /* otherwise just delete this partition */
522 if (dev
== current_dev
) {
523 /* we are modyfing partitions for the current device,
525 struct part_info
*curr_pi
;
526 curr_pi
= jffs2_part_info(current_dev
, current_partnum
);
529 if (curr_pi
== part
) {
530 printf("current partition deleted, resetting current to 0\n");
532 } else if (part
->offset
<= curr_pi
->offset
) {
535 current_save_needed
= 1;
539 #ifdef CONFIG_NAND_LEGACY
540 jffs2_free_cache(part
);
542 list_del(&part
->link
);
546 if (current_save_needed
> 0)
555 * Delete all partitions from parts head list, free memory.
557 * @param head list of partitions to delete
559 static void part_delall(struct list_head
*head
)
561 struct list_head
*entry
, *n
;
562 struct part_info
*part_tmp
;
564 /* clean tmp_list and free allocated memory */
565 list_for_each_safe(entry
, n
, head
) {
566 part_tmp
= list_entry(entry
, struct part_info
, link
);
568 #ifdef CONFIG_NAND_LEGACY
569 jffs2_free_cache(part_tmp
);
577 * Add new partition to the supplied partition list. Make sure partitions are
578 * sorted by offset in ascending order.
580 * @param head list this partition is to be added to
581 * @param new partition to be added
583 static int part_sort_add(struct mtd_device
*dev
, struct part_info
*part
)
585 struct list_head
*entry
;
586 struct part_info
*new_pi
, *curr_pi
;
588 /* link partition to parrent dev */
591 if (list_empty(&dev
->parts
)) {
592 DEBUGF("part_sort_add: list empty\n");
593 list_add(&part
->link
, &dev
->parts
);
599 new_pi
= list_entry(&part
->link
, struct part_info
, link
);
601 /* get current partition info if we are updating current device */
603 if (dev
== current_dev
)
604 curr_pi
= jffs2_part_info(current_dev
, current_partnum
);
606 list_for_each(entry
, &dev
->parts
) {
607 struct part_info
*pi
;
609 pi
= list_entry(entry
, struct part_info
, link
);
611 /* be compliant with kernel cmdline, allow only one partition at offset zero */
612 if ((new_pi
->offset
== pi
->offset
) && (pi
->offset
== 0)) {
613 printf("cannot add second partition at offset 0\n");
617 if (new_pi
->offset
<= pi
->offset
) {
618 list_add_tail(&part
->link
, entry
);
621 if (curr_pi
&& (pi
->offset
<= curr_pi
->offset
)) {
622 /* we are modyfing partitions for the current
623 * device, update current */
633 list_add_tail(&part
->link
, &dev
->parts
);
640 * Add provided partition to the partition list of a given device.
642 * @param dev device to which partition is added
643 * @param part partition to be added
644 * @return 0 on success, 1 otherwise
646 static int part_add(struct mtd_device
*dev
, struct part_info
*part
)
648 /* verify alignment and size */
649 if (part_validate(dev
->id
, part
) != 0)
652 /* partition is ok, add it to the list */
653 if (part_sort_add(dev
, part
) != 0)
660 * Parse one partition definition, allocate memory and return pointer to this
661 * location in retpart.
663 * @param partdef pointer to the partition definition string i.e. <part-def>
664 * @param ret output pointer to next char after parse completes (output)
665 * @param retpart pointer to the allocated partition (output)
666 * @return 0 on success, 1 otherwise
668 static int part_parse(const char *const partdef
, const char **ret
, struct part_info
**retpart
)
670 struct part_info
*part
;
672 unsigned long offset
;
675 unsigned int mask_flags
;
682 /* fetch the partition size */
684 /* assign all remaining space to this partition */
685 DEBUGF("'-': remaining size assigned\n");
686 size
= SIZE_REMAINING
;
689 size
= memsize_parse(p
, &p
);
690 if (size
< MIN_PART_SIZE
) {
691 printf("partition size too small (%lx)\n", size
);
696 /* check for offset */
697 offset
= OFFSET_NOT_SPECIFIED
;
700 offset
= memsize_parse(p
, &p
);
703 /* now look for the name */
706 if ((p
= strchr(name
, ')')) == NULL
) {
707 printf("no closing ) found in partition name\n");
710 name_len
= p
- name
+ 1;
711 if ((name_len
- 1) == 0) {
712 printf("empty partition name\n");
717 /* 0x00000000@0x00000000 */
722 /* test for options */
724 if (strncmp(p
, "ro", 2) == 0) {
725 mask_flags
|= MTD_WRITEABLE_CMD
;
729 /* check for next partition definition */
731 if (size
== SIZE_REMAINING
) {
733 printf("no partitions allowed after a fill-up partition\n");
737 } else if ((*p
== ';') || (*p
== '\0')) {
740 printf("unexpected character '%c' at the end of partition\n", *p
);
745 /* allocate memory */
746 part
= (struct part_info
*)malloc(sizeof(struct part_info
) + name_len
);
748 printf("out of memory\n");
751 memset(part
, 0, sizeof(struct part_info
) + name_len
);
753 part
->offset
= offset
;
754 part
->mask_flags
= mask_flags
;
755 part
->name
= (char *)(part
+ 1);
758 /* copy user provided name */
759 strncpy(part
->name
, name
, name_len
- 1);
762 /* auto generated name in form of size@offset */
763 sprintf(part
->name
, "0x%08lx@0x%08lx", size
, offset
);
767 part
->name
[name_len
- 1] = '\0';
768 INIT_LIST_HEAD(&part
->link
);
770 DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
771 part
->name
, part
->size
,
772 part
->offset
, part
->mask_flags
);
777 #endif/* #ifdef CONFIG_JFFS2_CMDLINE */
780 * Check device number to be within valid range for given device type.
782 * @param dev device to validate
783 * @return 0 if device is valid, 1 otherwise
785 static int device_validate(u8 type
, u8 num
, u32
*size
)
787 if (type
== MTD_DEV_TYPE_NOR
) {
788 #if defined(CONFIG_CMD_FLASH)
789 if (num
< CONFIG_SYS_MAX_FLASH_BANKS
) {
790 extern flash_info_t flash_info
[];
791 *size
= flash_info
[num
].size
;
796 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
797 MTD_DEV_TYPE(type
), num
, CONFIG_SYS_MAX_FLASH_BANKS
- 1);
799 printf("support for FLASH devices not present\n");
801 } else if (type
== MTD_DEV_TYPE_NAND
) {
802 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
803 if (num
< CONFIG_SYS_MAX_NAND_DEVICE
) {
804 #ifndef CONFIG_NAND_LEGACY
805 *size
= nand_info
[num
].size
;
807 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
808 *size
= nand_dev_desc
[num
].totlen
;
813 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
814 MTD_DEV_TYPE(type
), num
, CONFIG_SYS_MAX_NAND_DEVICE
- 1);
816 printf("support for NAND devices not present\n");
818 } else if (type
== MTD_DEV_TYPE_ONENAND
) {
819 #if defined(CONFIG_CMD_ONENAND)
820 *size
= onenand_mtd
.size
;
823 printf("support for OneNAND devices not present\n");
826 printf("Unknown defice type %d\n", type
);
831 #ifdef CONFIG_JFFS2_CMDLINE
833 * Delete all mtd devices from a supplied devices list, free memory allocated for
834 * each device and delete all device partitions.
836 * @return 0 on success, 1 otherwise
838 static int device_delall(struct list_head
*head
)
840 struct list_head
*entry
, *n
;
841 struct mtd_device
*dev_tmp
;
843 /* clean devices list */
844 list_for_each_safe(entry
, n
, head
) {
845 dev_tmp
= list_entry(entry
, struct mtd_device
, link
);
847 part_delall(&dev_tmp
->parts
);
850 INIT_LIST_HEAD(&devices
);
856 * If provided device exists it's partitions are deleted, device is removed
857 * from device list and device memory is freed.
859 * @param dev device to be deleted
860 * @return 0 on success, 1 otherwise
862 static int device_del(struct mtd_device
*dev
)
864 part_delall(&dev
->parts
);
865 list_del(&dev
->link
);
868 if (dev
== current_dev
) {
869 /* we just deleted current device */
870 if (list_empty(&devices
)) {
873 /* reset first partition from first dev from the
874 * devices list as current */
875 current_dev
= list_entry(devices
.next
, struct mtd_device
, link
);
887 * Search global device list and return pointer to the device of type and num
890 * @param type device type
891 * @param num device number
892 * @return NULL if requested device does not exist
894 static struct mtd_device
* device_find(u8 type
, u8 num
)
896 struct list_head
*entry
;
897 struct mtd_device
*dev_tmp
;
899 list_for_each(entry
, &devices
) {
900 dev_tmp
= list_entry(entry
, struct mtd_device
, link
);
902 if ((dev_tmp
->id
->type
== type
) && (dev_tmp
->id
->num
== num
))
910 * Add specified device to the global device list.
912 * @param dev device to be added
914 static void device_add(struct mtd_device
*dev
)
916 u8 current_save_needed
= 0;
918 if (list_empty(&devices
)) {
921 current_save_needed
= 1;
924 list_add_tail(&dev
->link
, &devices
);
926 if (current_save_needed
> 0)
933 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
934 * return pointer to the device structure.
936 * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
937 * @param ret output pointer to next char after parse completes (output)
938 * @param retdev pointer to the allocated device (output)
939 * @return 0 on success, 1 otherwise
941 static int device_parse(const char *const mtd_dev
, const char **ret
, struct mtd_device
**retdev
)
943 struct mtd_device
*dev
;
944 struct part_info
*part
;
947 unsigned int mtd_id_len
;
948 const char *p
, *pend
;
950 struct list_head
*entry
, *n
;
959 DEBUGF("===device_parse===\n");
963 if (!(p
= strchr(mtd_id
, ':'))) {
964 printf("no <mtd-id> identifier\n");
967 mtd_id_len
= p
- mtd_id
+ 1;
970 /* verify if we have a valid device specified */
971 if ((id
= id_find_by_mtd_id(mtd_id
, mtd_id_len
- 1)) == NULL
) {
972 printf("invalid mtd device '%.*s'\n", mtd_id_len
- 1, mtd_id
);
976 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
977 id
->type
, MTD_DEV_TYPE(id
->type
),
978 id
->num
, id
->mtd_id
);
979 pend
= strchr(p
, ';');
980 DEBUGF("parsing partitions %.*s\n", (pend
? pend
- p
: strlen(p
)), p
);
983 /* parse partitions */
987 if ((dev
= device_find(id
->type
, id
->num
)) != NULL
) {
988 /* if device already exists start at the end of the last partition */
989 part
= list_entry(dev
->parts
.prev
, struct part_info
, link
);
990 offset
= part
->offset
+ part
->size
;
993 while (p
&& (*p
!= '\0') && (*p
!= ';')) {
995 if ((part_parse(p
, &p
, &part
) != 0) || (!part
))
998 /* calculate offset when not specified */
999 if (part
->offset
== OFFSET_NOT_SPECIFIED
)
1000 part
->offset
= offset
;
1002 offset
= part
->offset
;
1004 /* verify alignment and size */
1005 if (part_validate(id
, part
) != 0)
1008 offset
+= part
->size
;
1010 /* partition is ok, add it to the list */
1011 list_add_tail(&part
->link
, &tmp_list
);
1016 part_delall(&tmp_list
);
1020 if (num_parts
== 0) {
1021 printf("no partitions for device %s%d (%s)\n",
1022 MTD_DEV_TYPE(id
->type
), id
->num
, id
->mtd_id
);
1026 DEBUGF("\ntotal partitions: %d\n", num_parts
);
1028 /* check for next device presence */
1032 } else if (*p
== '\0') {
1035 printf("unexpected character '%c' at the end of device\n", *p
);
1041 /* allocate memory for mtd_device structure */
1042 if ((dev
= (struct mtd_device
*)malloc(sizeof(struct mtd_device
))) == NULL
) {
1043 printf("out of memory\n");
1046 memset(dev
, 0, sizeof(struct mtd_device
));
1048 dev
->num_parts
= 0; /* part_sort_add increments num_parts */
1049 INIT_LIST_HEAD(&dev
->parts
);
1050 INIT_LIST_HEAD(&dev
->link
);
1052 /* move partitions from tmp_list to dev->parts */
1053 list_for_each_safe(entry
, n
, &tmp_list
) {
1054 part
= list_entry(entry
, struct part_info
, link
);
1056 if (part_sort_add(dev
, part
) != 0) {
1069 * Initialize global device list.
1071 * @return 0 on success, 1 otherwise
1073 static int jffs2_devices_init(void)
1075 last_parts
[0] = '\0';
1079 return device_delall(&devices
);
1083 * Search global mtdids list and find id of requested type and number.
1085 * @return pointer to the id if it exists, NULL otherwise
1087 static struct mtdids
* id_find(u8 type
, u8 num
)
1089 struct list_head
*entry
;
1092 list_for_each(entry
, &mtdids
) {
1093 id
= list_entry(entry
, struct mtdids
, link
);
1095 if ((id
->type
== type
) && (id
->num
== num
))
1103 * Search global mtdids list and find id of a requested mtd_id.
1105 * Note: first argument is not null terminated.
1107 * @param mtd_id string containing requested mtd_id
1108 * @param mtd_id_len length of supplied mtd_id
1109 * @return pointer to the id if it exists, NULL otherwise
1111 static struct mtdids
* id_find_by_mtd_id(const char *mtd_id
, unsigned int mtd_id_len
)
1113 struct list_head
*entry
;
1116 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1117 mtd_id_len
, mtd_id
, mtd_id_len
);
1119 list_for_each(entry
, &mtdids
) {
1120 id
= list_entry(entry
, struct mtdids
, link
);
1122 DEBUGF("entry: '%s' (len = %d)\n",
1123 id
->mtd_id
, strlen(id
->mtd_id
));
1125 if (mtd_id_len
!= strlen(id
->mtd_id
))
1127 if (strncmp(id
->mtd_id
, mtd_id
, mtd_id_len
) == 0)
1133 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1136 * Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
1137 * return device type and number.
1139 * @param id string describing device id
1140 * @param ret_id output pointer to next char after parse completes (output)
1141 * @param dev_type parsed device type (output)
1142 * @param dev_num parsed device number (output)
1143 * @return 0 on success, 1 otherwise
1145 int id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
)
1150 if (strncmp(p
, "nand", 4) == 0) {
1151 *dev_type
= MTD_DEV_TYPE_NAND
;
1153 } else if (strncmp(p
, "nor", 3) == 0) {
1154 *dev_type
= MTD_DEV_TYPE_NOR
;
1156 } else if (strncmp(p
, "onenand", 7) == 0) {
1157 *dev_type
= MTD_DEV_TYPE_ONENAND
;
1160 printf("incorrect device type in %s\n", id
);
1165 printf("incorrect device number in %s\n", id
);
1169 *dev_num
= simple_strtoul(p
, (char **)&p
, 0);
1175 #ifdef CONFIG_JFFS2_CMDLINE
1177 * Process all devices and generate corresponding mtdparts string describing
1178 * all partitions on all devices.
1180 * @param buf output buffer holding generated mtdparts string (output)
1181 * @param buflen buffer size
1182 * @return 0 on success, 1 otherwise
1184 static int generate_mtdparts(char *buf
, u32 buflen
)
1186 struct list_head
*pentry
, *dentry
;
1187 struct mtd_device
*dev
;
1188 struct part_info
*part
, *prev_part
;
1191 u32 size
, offset
, len
, part_cnt
;
1192 u32 maxlen
= buflen
- 1;
1194 DEBUGF("--- generate_mtdparts ---\n");
1196 if (list_empty(&devices
)) {
1201 sprintf(p
, "mtdparts=");
1204 list_for_each(dentry
, &devices
) {
1205 dev
= list_entry(dentry
, struct mtd_device
, link
);
1208 len
= strlen(dev
->id
->mtd_id
) + 1;
1211 memcpy(p
, dev
->id
->mtd_id
, len
- 1);
1216 /* format partitions */
1219 list_for_each(pentry
, &dev
->parts
) {
1220 part
= list_entry(pentry
, struct part_info
, link
);
1222 offset
= part
->offset
;
1225 /* partition size */
1226 memsize_format(tmpbuf
, size
);
1227 len
= strlen(tmpbuf
);
1230 memcpy(p
, tmpbuf
, len
);
1235 /* add offset only when there is a gap between
1237 if ((!prev_part
&& (offset
!= 0)) ||
1238 (prev_part
&& ((prev_part
->offset
+ prev_part
->size
) != part
->offset
))) {
1240 memsize_format(tmpbuf
, offset
);
1241 len
= strlen(tmpbuf
) + 1;
1245 memcpy(p
, tmpbuf
, len
- 1);
1250 /* copy name only if user supplied */
1251 if(!part
->auto_name
) {
1252 len
= strlen(part
->name
) + 2;
1257 memcpy(p
, part
->name
, len
- 2);
1264 if (part
->mask_flags
&& MTD_WRITEABLE_CMD
) {
1273 /* print ',' separator if there are other partitions
1275 if (dev
->num_parts
> part_cnt
) {
1283 /* print ';' separator if there are other devices following */
1284 if (dentry
->next
!= &devices
) {
1292 /* we still have at least one char left, as we decremented maxlen at
1299 last_parts
[0] = '\0';
1304 * Call generate_mtdparts to process all devices and generate corresponding
1305 * mtdparts string, save it in mtdparts environment variable.
1307 * @param buf output buffer holding generated mtdparts string (output)
1308 * @param buflen buffer size
1309 * @return 0 on success, 1 otherwise
1311 static int generate_mtdparts_save(char *buf
, u32 buflen
)
1315 ret
= generate_mtdparts(buf
, buflen
);
1317 if ((buf
[0] != '\0') && (ret
== 0))
1318 setenv("mtdparts", buf
);
1320 setenv("mtdparts", NULL
);
1326 * Format and print out a partition list for each device from global device
1329 static void list_partitions(void)
1331 struct list_head
*dentry
, *pentry
;
1332 struct part_info
*part
;
1333 struct mtd_device
*dev
;
1336 DEBUGF("\n---list_partitions---\n");
1337 list_for_each(dentry
, &devices
) {
1338 dev
= list_entry(dentry
, struct mtd_device
, link
);
1339 printf("\ndevice %s%d <%s>, # parts = %d\n",
1340 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
,
1341 dev
->id
->mtd_id
, dev
->num_parts
);
1342 printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
1344 /* list partitions for given device */
1346 list_for_each(pentry
, &dev
->parts
) {
1347 part
= list_entry(pentry
, struct part_info
, link
);
1348 printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
1349 part_num
, part
->name
, part
->size
,
1350 part
->offset
, part
->mask_flags
);
1355 if (list_empty(&devices
))
1356 printf("no partitions defined\n");
1358 /* current_dev is not NULL only when we have non empty device list */
1360 part
= jffs2_part_info(current_dev
, current_partnum
);
1362 printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
1363 MTD_DEV_TYPE(current_dev
->id
->type
),
1364 current_dev
->id
->num
, current_partnum
,
1365 part
->name
, part
->size
, part
->offset
);
1367 printf("could not get current partition info\n\n");
1371 printf("\ndefaults:\n");
1372 printf("mtdids : %s\n", mtdids_default
);
1373 printf("mtdparts: %s\n", mtdparts_default
);
1377 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1378 * corresponding device and verify partition number.
1380 * @param id string describing device and partition or partition name
1381 * @param dev pointer to the requested device (output)
1382 * @param part_num verified partition number (output)
1383 * @param part pointer to requested partition (output)
1384 * @return 0 on success, 1 otherwise
1386 int find_dev_and_part(const char *id
, struct mtd_device
**dev
,
1387 u8
*part_num
, struct part_info
**part
)
1389 struct list_head
*dentry
, *pentry
;
1390 u8 type
, dnum
, pnum
;
1393 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id
);
1395 list_for_each(dentry
, &devices
) {
1397 *dev
= list_entry(dentry
, struct mtd_device
, link
);
1398 list_for_each(pentry
, &(*dev
)->parts
) {
1399 *part
= list_entry(pentry
, struct part_info
, link
);
1400 if (strcmp((*part
)->name
, id
) == 0)
1411 if (id_parse(p
, &p
, &type
, &dnum
) != 0)
1414 if ((*p
++ != ',') || (*p
== '\0')) {
1415 printf("no partition number specified\n");
1418 pnum
= simple_strtoul(p
, (char **)&p
, 0);
1420 printf("unexpected trailing character '%c'\n", *p
);
1424 if ((*dev
= device_find(type
, dnum
)) == NULL
) {
1425 printf("no such device %s%d\n", MTD_DEV_TYPE(type
), dnum
);
1429 if ((*part
= jffs2_part_info(*dev
, pnum
)) == NULL
) {
1430 printf("no such partition\n");
1441 * Find and delete partition. For partition id format see find_dev_and_part().
1443 * @param id string describing device and partition
1444 * @return 0 on success, 1 otherwise
1446 static int delete_partition(const char *id
)
1449 struct mtd_device
*dev
;
1450 struct part_info
*part
;
1452 if (find_dev_and_part(id
, &dev
, &pnum
, &part
) == 0) {
1454 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1455 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
, pnum
,
1456 part
->name
, part
->size
, part
->offset
);
1458 if (part_del(dev
, part
) != 0)
1461 if (generate_mtdparts_save(last_parts
, MTDPARTS_MAXLEN
) != 0) {
1462 printf("generated mtdparts too long, reseting to null\n");
1468 printf("partition %s not found\n", id
);
1473 * Accept character string describing mtd partitions and call device_parse()
1474 * for each entry. Add created devices to the global devices list.
1476 * @param mtdparts string specifing mtd partitions
1477 * @return 0 on success, 1 otherwise
1479 static int parse_mtdparts(const char *const mtdparts
)
1481 const char *p
= mtdparts
;
1482 struct mtd_device
*dev
;
1485 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p
);
1487 /* delete all devices and partitions */
1488 if (jffs2_devices_init() != 0) {
1489 printf("could not initialise device list\n");
1493 /* re-read 'mtdparts' variable, jffs2_devices_init may be updating env */
1494 p
= getenv("mtdparts");
1496 if (strncmp(p
, "mtdparts=", 9) != 0) {
1497 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1502 while (p
&& (*p
!= '\0')) {
1504 if ((device_parse(p
, &p
, &dev
) != 0) || (!dev
))
1507 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev
->id
->type
),
1508 dev
->id
->num
, dev
->id
->mtd_id
);
1510 /* check if parsed device is already on the list */
1511 if (device_find(dev
->id
->type
, dev
->id
->num
) != NULL
) {
1512 printf("device %s%d redefined, please correct mtdparts variable\n",
1513 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
);
1517 list_add_tail(&dev
->link
, &devices
);
1521 device_delall(&devices
);
1529 * Parse provided string describing mtdids mapping (see file header for mtdids
1530 * variable format). Allocate memory for each entry and add all found entries
1531 * to the global mtdids list.
1533 * @param ids mapping string
1534 * @return 0 on success, 1 otherwise
1536 static int parse_mtdids(const char *const ids
)
1538 const char *p
= ids
;
1542 struct list_head
*entry
, *n
;
1543 struct mtdids
*id_tmp
;
1548 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids
);
1550 /* clean global mtdids list */
1551 list_for_each_safe(entry
, n
, &mtdids
) {
1552 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1553 DEBUGF("mtdids del: %d %d\n", id_tmp
->type
, id_tmp
->num
);
1558 INIT_LIST_HEAD(&mtdids
);
1560 while(p
&& (*p
!= '\0')) {
1563 /* parse 'nor'|'nand'|'onenand'<dev-num> */
1564 if (id_parse(p
, &p
, &type
, &num
) != 0)
1568 printf("mtdids: incorrect <dev-num>\n");
1573 /* check if requested device exists */
1574 if (device_validate(type
, num
, &size
) != 0)
1577 /* locate <mtd-id> */
1579 if ((p
= strchr(mtd_id
, ',')) != NULL
) {
1580 mtd_id_len
= p
- mtd_id
+ 1;
1583 mtd_id_len
= strlen(mtd_id
) + 1;
1585 if (mtd_id_len
== 0) {
1586 printf("mtdids: no <mtd-id> identifier\n");
1590 /* check if this id is already on the list */
1591 int double_entry
= 0;
1592 list_for_each(entry
, &mtdids
) {
1593 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1594 if ((id_tmp
->type
== type
) && (id_tmp
->num
== num
)) {
1600 printf("device id %s%d redefined, please correct mtdids variable\n",
1601 MTD_DEV_TYPE(type
), num
);
1605 /* allocate mtdids structure */
1606 if (!(id
= (struct mtdids
*)malloc(sizeof(struct mtdids
) + mtd_id_len
))) {
1607 printf("out of memory\n");
1610 memset(id
, 0, sizeof(struct mtdids
) + mtd_id_len
);
1614 id
->mtd_id
= (char *)(id
+ 1);
1615 strncpy(id
->mtd_id
, mtd_id
, mtd_id_len
- 1);
1616 id
->mtd_id
[mtd_id_len
- 1] = '\0';
1617 INIT_LIST_HEAD(&id
->link
);
1619 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1620 MTD_DEV_TYPE(id
->type
), id
->num
,
1621 id
->size
, id
->mtd_id
);
1623 list_add_tail(&id
->link
, &mtdids
);
1627 /* clean mtdids list and free allocated memory */
1628 list_for_each_safe(entry
, n
, &mtdids
) {
1629 id_tmp
= list_entry(entry
, struct mtdids
, link
);
1640 * Parse and initialize global mtdids mapping and create global
1641 * device/partition list.
1643 * @return 0 on success, 1 otherwise
1645 int mtdparts_init(void)
1647 static int initialized
= 0;
1648 const char *ids
, *parts
;
1649 const char *current_partition
;
1651 char tmp_ep
[PARTITION_MAXLEN
];
1653 DEBUGF("\n---mtdparts_init---\n");
1655 INIT_LIST_HEAD(&mtdids
);
1656 INIT_LIST_HEAD(&devices
);
1657 memset(last_ids
, 0, MTDIDS_MAXLEN
);
1658 memset(last_parts
, 0, MTDPARTS_MAXLEN
);
1659 memset(last_partition
, 0, PARTITION_MAXLEN
);
1664 ids
= getenv("mtdids");
1665 parts
= getenv("mtdparts");
1666 current_partition
= getenv("partition");
1668 /* save it for later parsing, cannot rely on current partition pointer
1669 * as 'partition' variable may be updated during init */
1671 if (current_partition
)
1672 strncpy(tmp_ep
, current_partition
, PARTITION_MAXLEN
);
1674 DEBUGF("last_ids : %s\n", last_ids
);
1675 DEBUGF("env_ids : %s\n", ids
);
1676 DEBUGF("last_parts: %s\n", last_parts
);
1677 DEBUGF("env_parts : %s\n\n", parts
);
1679 DEBUGF("last_partition : %s\n", last_partition
);
1680 DEBUGF("env_partition : %s\n", current_partition
);
1682 /* if mtdids varible is empty try to use defaults */
1684 if (mtdids_default
) {
1685 DEBUGF("mtdids variable not defined, using default\n");
1686 ids
= mtdids_default
;
1687 setenv("mtdids", (char *)ids
);
1689 printf("mtdids not defined, no default present\n");
1693 if (strlen(ids
) > MTDIDS_MAXLEN
- 1) {
1694 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN
);
1698 /* do no try to use defaults when mtdparts variable is not defined,
1699 * just check the length */
1701 printf("mtdparts variable not set, see 'help mtdparts'\n");
1703 if (parts
&& (strlen(parts
) > MTDPARTS_MAXLEN
- 1)) {
1704 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN
);
1708 /* check if we have already parsed those mtdids */
1709 if ((last_ids
[0] != '\0') && (strcmp(last_ids
, ids
) == 0)) {
1714 if (parse_mtdids(ids
) != 0) {
1715 jffs2_devices_init();
1719 /* ok it's good, save new ids */
1720 strncpy(last_ids
, ids
, MTDIDS_MAXLEN
);
1723 /* parse partitions if either mtdparts or mtdids were updated */
1724 if (parts
&& ((last_parts
[0] == '\0') || ((strcmp(last_parts
, parts
) != 0)) || ids_changed
)) {
1725 if (parse_mtdparts(parts
) != 0)
1728 if (list_empty(&devices
)) {
1729 printf("mtdparts_init: no valid partitions\n");
1733 /* ok it's good, save new parts */
1734 strncpy(last_parts
, parts
, MTDPARTS_MAXLEN
);
1736 /* reset first partition from first dev from the list as current */
1737 current_dev
= list_entry(devices
.next
, struct mtd_device
, link
);
1738 current_partnum
= 0;
1741 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1742 MTD_DEV_TYPE(current_dev
->id
->type
),
1743 current_dev
->id
->num
, current_partnum
);
1746 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1747 if (!parts
&& (last_parts
[0] != '\0'))
1748 return jffs2_devices_init();
1750 /* do not process current partition if mtdparts variable is null */
1754 /* is current partition set in environment? if so, use it */
1755 if ((tmp_ep
[0] != '\0') && (strcmp(tmp_ep
, last_partition
) != 0)) {
1756 struct part_info
*p
;
1757 struct mtd_device
*cdev
;
1760 DEBUGF("--- getting current partition: %s\n", tmp_ep
);
1762 if (find_dev_and_part(tmp_ep
, &cdev
, &pnum
, &p
) == 0) {
1764 current_partnum
= pnum
;
1767 } else if (getenv("partition") == NULL
) {
1768 DEBUGF("no partition variable set, setting...\n");
1774 #else /* #ifdef CONFIG_JFFS2_CMDLINE */
1776 * 'Static' version of command line mtdparts_init() routine. Single partition on
1777 * a single device configuration.
1781 * Calculate sector size.
1783 * @return sector size
1785 static inline u32
get_part_sector_size_nand(struct mtdids
*id
)
1787 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
1788 #if defined(CONFIG_NAND_LEGACY)
1789 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
1791 return nand_dev_desc
[id
->num
].erasesize
;
1795 nand
= &nand_info
[id
->num
];
1797 return nand
->erasesize
;
1805 static inline u32
get_part_sector_size_nor(struct mtdids
*id
, struct part_info
*part
)
1807 #if defined(CONFIG_CMD_FLASH)
1808 extern flash_info_t flash_info
[];
1810 u32 end_phys
, start_phys
, sector_size
= 0, size
= 0;
1812 flash_info_t
*flash
;
1814 flash
= &flash_info
[id
->num
];
1816 start_phys
= flash
->start
[0] + part
->offset
;
1817 end_phys
= start_phys
+ part
->size
;
1819 for (i
= 0; i
< flash
->sector_count
; i
++) {
1820 if (flash
->start
[i
] >= end_phys
)
1823 if (flash
->start
[i
] >= start_phys
) {
1824 if (i
== flash
->sector_count
- 1) {
1825 size
= flash
->start
[0] + flash
->size
- flash
->start
[i
];
1827 size
= flash
->start
[i
+1] - flash
->start
[i
];
1830 if (sector_size
< size
)
1842 static inline u32
get_part_sector_size_onenand(void)
1844 #if defined(CONFIG_CMD_ONENAND)
1845 struct mtd_info
*mtd
;
1849 return mtd
->erasesize
;
1856 static inline u32
get_part_sector_size(struct mtdids
*id
, struct part_info
*part
)
1858 if (id
->type
== MTD_DEV_TYPE_NAND
)
1859 return get_part_sector_size_nand(id
);
1860 else if (id
->type
== MTD_DEV_TYPE_NOR
)
1861 return get_part_sector_size_nor(id
, part
);
1862 else if (id
->type
== MTD_DEV_TYPE_ONENAND
)
1863 return get_part_sector_size_onenand();
1865 DEBUGF("Error: Unknown device type.\n");
1871 * Parse and initialize global mtdids mapping and create global
1872 * device/partition list.
1874 * @return 0 on success, 1 otherwise
1876 int mtdparts_init(void)
1878 static int initialized
= 0;
1882 DEBUGF("\n---mtdparts_init---\n");
1885 struct part_info
*part
;
1888 current_dev
= (struct mtd_device
*)
1889 malloc(sizeof(struct mtd_device
) +
1890 sizeof(struct part_info
) +
1891 sizeof(struct mtdids
));
1893 printf("out of memory\n");
1896 memset(current_dev
, 0, sizeof(struct mtd_device
) +
1897 sizeof(struct part_info
) + sizeof(struct mtdids
));
1899 id
= (struct mtdids
*)(current_dev
+ 1);
1900 part
= (struct part_info
*)(id
+ 1);
1903 id
->mtd_id
= "single part";
1905 #if defined(CONFIG_JFFS2_DEV)
1906 dev_name
= CONFIG_JFFS2_DEV
;
1911 if ((id_parse(dev_name
, NULL
, &id
->type
, &id
->num
) != 0) ||
1912 (device_validate(id
->type
, id
->num
, &size
) != 0)) {
1913 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id
->type
), id
->num
);
1918 INIT_LIST_HEAD(&id
->link
);
1920 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1921 id
->type
, id
->num
, id
->size
, id
->mtd_id
);
1924 part
->name
= "static";
1925 part
->auto_name
= 0;
1927 #if defined(CONFIG_JFFS2_PART_SIZE)
1928 part
->size
= CONFIG_JFFS2_PART_SIZE
;
1930 part
->size
= SIZE_REMAINING
;
1933 #if defined(CONFIG_JFFS2_PART_OFFSET)
1934 part
->offset
= CONFIG_JFFS2_PART_OFFSET
;
1936 part
->offset
= 0x00000000;
1939 part
->sector_size
= get_part_sector_size(id
, part
);
1941 part
->dev
= current_dev
;
1942 INIT_LIST_HEAD(&part
->link
);
1944 /* recalculate size if needed */
1945 if (part
->size
== SIZE_REMAINING
)
1946 part
->size
= id
->size
- part
->offset
;
1948 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1949 part
->name
, part
->size
, part
->offset
);
1952 current_dev
->id
= id
;
1953 INIT_LIST_HEAD(¤t_dev
->link
);
1954 current_dev
->num_parts
= 1;
1955 INIT_LIST_HEAD(¤t_dev
->parts
);
1956 list_add(&part
->link
, ¤t_dev
->parts
);
1961 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1964 * Return pointer to the partition of a requested number from a requested
1967 * @param dev device that is to be searched for a partition
1968 * @param part_num requested partition number
1969 * @return pointer to the part_info, NULL otherwise
1971 static struct part_info
* jffs2_part_info(struct mtd_device
*dev
, unsigned int part_num
)
1973 struct list_head
*entry
;
1974 struct part_info
*part
;
1980 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1981 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
1982 dev
->id
->num
, dev
->id
->mtd_id
);
1984 if (part_num
>= dev
->num_parts
) {
1985 printf("invalid partition number %d for device %s%d (%s)\n",
1986 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
1987 dev
->id
->num
, dev
->id
->mtd_id
);
1991 /* locate partition number, return it */
1993 list_for_each(entry
, &dev
->parts
) {
1994 part
= list_entry(entry
, struct part_info
, link
);
1996 if (part_num
== num
++) {
2004 /***************************************************/
2005 /* U-boot commands */
2006 /***************************************************/
2009 * Routine implementing fsload u-boot command. This routine tries to load
2010 * a requested file from jffs2/cramfs filesystem on a current partition.
2012 * @param cmdtp command internal data
2013 * @param flag command flag
2014 * @param argc number of arguments supplied to the command
2015 * @param argv arguments list
2016 * @return 0 on success, 1 otherwise
2018 int do_jffs2_fsload(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2023 struct part_info
*part
;
2024 ulong offset
= load_addr
;
2026 /* pre-set Boot file name */
2027 if ((filename
= getenv("bootfile")) == NULL
) {
2028 filename
= "uImage";
2035 offset
= simple_strtoul(argv
[1], NULL
, 16);
2040 /* make sure we are in sync with env variables */
2041 if (mtdparts_init() !=0)
2044 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
2046 /* check partition type for cramfs */
2047 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
2048 printf("### %s loading '%s' to 0x%lx\n", fsname
, filename
, offset
);
2050 if (cramfs_check(part
)) {
2051 size
= cramfs_load ((char *) offset
, part
, filename
);
2053 /* if this is not cramfs assume jffs2 */
2054 size
= jffs2_1pass_load((char *)offset
, part
, filename
);
2059 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
2060 fsname
, size
, offset
);
2061 sprintf(buf
, "%x", size
);
2062 setenv("filesize", buf
);
2064 printf("### %s LOAD ERROR<%x> for %s!\n", fsname
, size
, filename
);
2073 * Routine implementing u-boot ls command which lists content of a given
2074 * directory on a current partition.
2076 * @param cmdtp command internal data
2077 * @param flag command flag
2078 * @param argc number of arguments supplied to the command
2079 * @param argv arguments list
2080 * @return 0 on success, 1 otherwise
2082 int do_jffs2_ls(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2084 char *filename
= "/";
2086 struct part_info
*part
;
2091 /* make sure we are in sync with env variables */
2092 if (mtdparts_init() !=0)
2095 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
2097 /* check partition type for cramfs */
2098 if (cramfs_check(part
)) {
2099 ret
= cramfs_ls (part
, filename
);
2101 /* if this is not cramfs assume jffs2 */
2102 ret
= jffs2_1pass_ls(part
, filename
);
2111 * Routine implementing u-boot fsinfo command. This routine prints out
2112 * miscellaneous filesystem informations/statistics.
2114 * @param cmdtp command internal data
2115 * @param flag command flag
2116 * @param argc number of arguments supplied to the command
2117 * @param argv arguments list
2118 * @return 0 on success, 1 otherwise
2120 int do_jffs2_fsinfo(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2122 struct part_info
*part
;
2126 /* make sure we are in sync with env variables */
2127 if (mtdparts_init() !=0)
2130 if ((part
= jffs2_part_info(current_dev
, current_partnum
))){
2132 /* check partition type for cramfs */
2133 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
2134 printf("### filesystem type is %s\n", fsname
);
2136 if (cramfs_check(part
)) {
2137 ret
= cramfs_info (part
);
2139 /* if this is not cramfs assume jffs2 */
2140 ret
= jffs2_1pass_info(part
);
2148 /* command line only */
2149 #ifdef CONFIG_JFFS2_CMDLINE
2151 * Routine implementing u-boot chpart command. Sets new current partition based
2152 * on the user supplied partition id. For partition id format see find_dev_and_part().
2154 * @param cmdtp command internal data
2155 * @param flag command flag
2156 * @param argc number of arguments supplied to the command
2157 * @param argv arguments list
2158 * @return 0 on success, 1 otherwise
2160 int do_jffs2_chpart(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2162 /* command line only */
2163 struct mtd_device
*dev
;
2164 struct part_info
*part
;
2167 if (mtdparts_init() !=0)
2171 printf("no partition id specified\n");
2175 if (find_dev_and_part(argv
[1], &dev
, &pnum
, &part
) != 0)
2179 current_partnum
= pnum
;
2182 printf("partition changed to %s%d,%d\n",
2183 MTD_DEV_TYPE(dev
->id
->type
), dev
->id
->num
, pnum
);
2189 * Routine implementing u-boot mtdparts command. Initialize/update default global
2190 * partition list and process user partition request (list, add, del).
2192 * @param cmdtp command internal data
2193 * @param flag command flag
2194 * @param argc number of arguments supplied to the command
2195 * @param argv arguments list
2196 * @return 0 on success, 1 otherwise
2198 int do_jffs2_mtdparts(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
2201 if (strcmp(argv
[1], "default") == 0) {
2202 setenv("mtdids", (char *)mtdids_default
);
2203 setenv("mtdparts", (char *)mtdparts_default
);
2204 setenv("partition", NULL
);
2208 } else if (strcmp(argv
[1], "delall") == 0) {
2209 /* this may be the first run, initialize lists if needed */
2212 setenv("mtdparts", NULL
);
2214 /* jffs2_devices_init() calls current_save() */
2215 return jffs2_devices_init();
2219 /* make sure we are in sync with env variables */
2220 if (mtdparts_init() != 0)
2228 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2229 if (((argc
== 5) || (argc
== 6)) && (strcmp(argv
[1], "add") == 0)) {
2230 #define PART_ADD_DESC_MAXLEN 64
2231 char tmpbuf
[PART_ADD_DESC_MAXLEN
];
2233 struct mtd_device
*dev
;
2234 struct mtd_device
*dev_tmp
;
2236 struct part_info
*p
;
2238 if (id_parse(argv
[2], NULL
, &type
, &num
) != 0)
2241 if ((id
= id_find(type
, num
)) == NULL
) {
2242 printf("no such device %s defined in mtdids variable\n", argv
[2]);
2246 len
= strlen(id
->mtd_id
) + 1; /* 'mtd_id:' */
2247 len
+= strlen(argv
[3]); /* size@offset */
2248 len
+= strlen(argv
[4]) + 2; /* '(' name ')' */
2249 if (argv
[5] && (strlen(argv
[5]) == 2))
2250 len
+= 2; /* 'ro' */
2252 if (len
>= PART_ADD_DESC_MAXLEN
) {
2253 printf("too long partition description\n");
2256 sprintf(tmpbuf
, "%s:%s(%s)%s",
2257 id
->mtd_id
, argv
[3], argv
[4], argv
[5] ? argv
[5] : "");
2258 DEBUGF("add tmpbuf: %s\n", tmpbuf
);
2260 if ((device_parse(tmpbuf
, NULL
, &dev
) != 0) || (!dev
))
2263 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev
->id
->type
),
2264 dev
->id
->num
, dev
->id
->mtd_id
);
2266 if ((dev_tmp
= device_find(dev
->id
->type
, dev
->id
->num
)) == NULL
) {
2269 /* merge new partition with existing ones*/
2270 p
= list_entry(dev
->parts
.next
, struct part_info
, link
);
2271 if (part_add(dev_tmp
, p
) != 0) {
2277 if (generate_mtdparts_save(last_parts
, MTDPARTS_MAXLEN
) != 0) {
2278 printf("generated mtdparts too long, reseting to null\n");
2285 /* mtdparts del part-id */
2286 if ((argc
== 3) && (strcmp(argv
[1], "del") == 0)) {
2287 DEBUGF("del: part-id = %s\n", argv
[2]);
2289 return delete_partition(argv
[2]);
2295 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2297 /***************************************************/
2299 fsload
, 3, 0, do_jffs2_fsload
,
2300 "load binary file from a filesystem image",
2301 "[ off ] [ filename ]\n"
2302 " - load binary file from flash bank\n"
2303 " with offset 'off'\n"
2306 ls
, 2, 1, do_jffs2_ls
,
2307 "list files in a directory (default /)",
2309 " - list files in a directory.\n"
2313 fsinfo
, 1, 1, do_jffs2_fsinfo
,
2314 "print information about filesystems",
2315 " - print information about filesystems\n"
2318 #ifdef CONFIG_JFFS2_CMDLINE
2320 chpart
, 2, 0, do_jffs2_chpart
,
2321 "change active partition",
2323 " - change active partition (e.g. part-id = nand0,1)\n"
2327 mtdparts
, 6, 0, do_jffs2_mtdparts
,
2328 "define flash/nand partitions",
2330 " - list partition table\n"
2332 " - delete all partitions\n"
2333 "mtdparts del part-id\n"
2334 " - delete partition (e.g. part-id = nand0,1)\n"
2335 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2336 " - add partition\n"
2337 "mtdparts default\n"
2338 " - reset partition table to defaults\n\n"
2340 "this command uses three environment variables:\n\n"
2341 "'partition' - keeps current partition identifier\n\n"
2342 "partition := <part-id>\n"
2343 "<part-id> := <dev-id>,part_num\n\n"
2344 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2345 "mtdids=<idmap>[,<idmap>,...]\n\n"
2346 "<idmap> := <dev-id>=<mtd-id>\n"
2347 "<dev-id> := 'nand'|'nor'|'onenand'<dev-num>\n"
2348 "<dev-num> := mtd device number, 0...\n"
2349 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2350 "'mtdparts' - partition list\n\n"
2351 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2352 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2353 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2354 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2355 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2356 "<offset> := partition start offset within the device\n"
2357 "<name> := '(' NAME ')'\n"
2358 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2360 #endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2362 /***************************************************/