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 /* current active device and partition number */
140 #ifdef CONFIG_CMD_MTDPARTS
141 /* Use the ones declared in cmd_mtdparts.c */
142 extern struct mtd_device
*current_mtd_dev
;
143 extern u8 current_mtd_partnum
;
146 struct mtd_device
*current_mtd_dev
= NULL
;
147 u8 current_mtd_partnum
= 0;
150 #if defined(CONFIG_CMD_CRAMFS)
151 extern int cramfs_check (struct part_info
*info
);
152 extern int cramfs_load (char *loadoffset
, struct part_info
*info
, char *filename
);
153 extern int cramfs_ls (struct part_info
*info
, char *filename
);
154 extern int cramfs_info (struct part_info
*info
);
156 /* defining empty macros for function names is ugly but avoids ifdef clutter
157 * all over the code */
158 #define cramfs_check(x) (0)
159 #define cramfs_load(x,y,z) (-1)
160 #define cramfs_ls(x,y) (0)
161 #define cramfs_info(x) (0)
164 #ifndef CONFIG_CMD_MTDPARTS
166 * Check device number to be within valid range for given device type.
168 * @param dev device to validate
169 * @return 0 if device is valid, 1 otherwise
171 static int mtd_device_validate(u8 type
, u8 num
, u32
*size
)
173 if (type
== MTD_DEV_TYPE_NOR
) {
174 #if defined(CONFIG_CMD_FLASH)
175 if (num
< CONFIG_SYS_MAX_FLASH_BANKS
) {
176 extern flash_info_t flash_info
[];
177 *size
= flash_info
[num
].size
;
182 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
183 MTD_DEV_TYPE(type
), num
, CONFIG_SYS_MAX_FLASH_BANKS
- 1);
185 printf("support for FLASH devices not present\n");
187 } else if (type
== MTD_DEV_TYPE_NAND
) {
188 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
189 if (num
< CONFIG_SYS_MAX_NAND_DEVICE
) {
190 #ifndef CONFIG_NAND_LEGACY
191 *size
= nand_info
[num
].size
;
193 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
194 *size
= nand_dev_desc
[num
].totlen
;
199 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
200 MTD_DEV_TYPE(type
), num
, CONFIG_SYS_MAX_NAND_DEVICE
- 1);
202 printf("support for NAND devices not present\n");
204 } else if (type
== MTD_DEV_TYPE_ONENAND
) {
205 #if defined(CONFIG_CMD_ONENAND)
206 *size
= onenand_mtd
.size
;
209 printf("support for OneNAND devices not present\n");
212 printf("Unknown defice type %d\n", type
);
218 * Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
219 * return device type and number.
221 * @param id string describing device id
222 * @param ret_id output pointer to next char after parse completes (output)
223 * @param dev_type parsed device type (output)
224 * @param dev_num parsed device number (output)
225 * @return 0 on success, 1 otherwise
227 static int mtd_id_parse(const char *id
, const char **ret_id
, u8
*dev_type
, u8
*dev_num
)
232 if (strncmp(p
, "nand", 4) == 0) {
233 *dev_type
= MTD_DEV_TYPE_NAND
;
235 } else if (strncmp(p
, "nor", 3) == 0) {
236 *dev_type
= MTD_DEV_TYPE_NOR
;
238 } else if (strncmp(p
, "onenand", 7) == 0) {
239 *dev_type
= MTD_DEV_TYPE_ONENAND
;
242 printf("incorrect device type in %s\n", id
);
247 printf("incorrect device number in %s\n", id
);
251 *dev_num
= simple_strtoul(p
, (char **)&p
, 0);
258 * 'Static' version of command line mtdparts_init() routine. Single partition on
259 * a single device configuration.
263 * Calculate sector size.
265 * @return sector size
267 static inline u32
get_part_sector_size_nand(struct mtdids
*id
)
269 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
270 #if defined(CONFIG_NAND_LEGACY)
271 extern struct nand_chip nand_dev_desc
[CONFIG_SYS_MAX_NAND_DEVICE
];
273 return nand_dev_desc
[id
->num
].erasesize
;
277 nand
= &nand_info
[id
->num
];
279 return nand
->erasesize
;
287 static inline u32
get_part_sector_size_nor(struct mtdids
*id
, struct part_info
*part
)
289 #if defined(CONFIG_CMD_FLASH)
290 extern flash_info_t flash_info
[];
292 u32 end_phys
, start_phys
, sector_size
= 0, size
= 0;
296 flash
= &flash_info
[id
->num
];
298 start_phys
= flash
->start
[0] + part
->offset
;
299 end_phys
= start_phys
+ part
->size
;
301 for (i
= 0; i
< flash
->sector_count
; i
++) {
302 if (flash
->start
[i
] >= end_phys
)
305 if (flash
->start
[i
] >= start_phys
) {
306 if (i
== flash
->sector_count
- 1) {
307 size
= flash
->start
[0] + flash
->size
- flash
->start
[i
];
309 size
= flash
->start
[i
+1] - flash
->start
[i
];
312 if (sector_size
< size
)
324 static inline u32
get_part_sector_size_onenand(void)
326 #if defined(CONFIG_CMD_ONENAND)
327 struct mtd_info
*mtd
;
331 return mtd
->erasesize
;
338 static inline u32
get_part_sector_size(struct mtdids
*id
, struct part_info
*part
)
340 if (id
->type
== MTD_DEV_TYPE_NAND
)
341 return get_part_sector_size_nand(id
);
342 else if (id
->type
== MTD_DEV_TYPE_NOR
)
343 return get_part_sector_size_nor(id
, part
);
344 else if (id
->type
== MTD_DEV_TYPE_ONENAND
)
345 return get_part_sector_size_onenand();
347 DEBUGF("Error: Unknown device type.\n");
353 * Parse and initialize global mtdids mapping and create global
354 * device/partition list.
356 * 'Static' version of command line mtdparts_init() routine. Single partition on
357 * a single device configuration.
359 * @return 0 on success, 1 otherwise
361 int mtdparts_init(void)
363 static int initialized
= 0;
367 DEBUGF("\n---mtdparts_init---\n");
370 struct part_info
*part
;
373 current_mtd_dev
= (struct mtd_device
*)
374 malloc(sizeof(struct mtd_device
) +
375 sizeof(struct part_info
) +
376 sizeof(struct mtdids
));
377 if (!current_mtd_dev
) {
378 printf("out of memory\n");
381 memset(current_mtd_dev
, 0, sizeof(struct mtd_device
) +
382 sizeof(struct part_info
) + sizeof(struct mtdids
));
384 id
= (struct mtdids
*)(current_mtd_dev
+ 1);
385 part
= (struct part_info
*)(id
+ 1);
388 id
->mtd_id
= "single part";
390 #if defined(CONFIG_JFFS2_DEV)
391 dev_name
= CONFIG_JFFS2_DEV
;
396 if ((mtd_id_parse(dev_name
, NULL
, &id
->type
, &id
->num
) != 0) ||
397 (mtd_device_validate(id
->type
, id
->num
, &size
) != 0)) {
398 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id
->type
), id
->num
);
399 free(current_mtd_dev
);
403 INIT_LIST_HEAD(&id
->link
);
405 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
406 id
->type
, id
->num
, id
->size
, id
->mtd_id
);
409 part
->name
= "static";
412 #if defined(CONFIG_JFFS2_PART_SIZE)
413 part
->size
= CONFIG_JFFS2_PART_SIZE
;
415 part
->size
= SIZE_REMAINING
;
418 #if defined(CONFIG_JFFS2_PART_OFFSET)
419 part
->offset
= CONFIG_JFFS2_PART_OFFSET
;
421 part
->offset
= 0x00000000;
424 part
->sector_size
= get_part_sector_size(id
, part
);
426 part
->dev
= current_mtd_dev
;
427 INIT_LIST_HEAD(&part
->link
);
429 /* recalculate size if needed */
430 if (part
->size
== SIZE_REMAINING
)
431 part
->size
= id
->size
- part
->offset
;
433 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
434 part
->name
, part
->size
, part
->offset
);
437 current_mtd_dev
->id
= id
;
438 INIT_LIST_HEAD(¤t_mtd_dev
->link
);
439 current_mtd_dev
->num_parts
= 1;
440 INIT_LIST_HEAD(¤t_mtd_dev
->parts
);
441 list_add(&part
->link
, ¤t_mtd_dev
->parts
);
446 #endif /* #ifndef CONFIG_CMD_MTDPARTS */
449 * Return pointer to the partition of a requested number from a requested
452 * @param dev device that is to be searched for a partition
453 * @param part_num requested partition number
454 * @return pointer to the part_info, NULL otherwise
456 static struct part_info
* jffs2_part_info(struct mtd_device
*dev
, unsigned int part_num
)
458 struct list_head
*entry
;
459 struct part_info
*part
;
465 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
466 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
467 dev
->id
->num
, dev
->id
->mtd_id
);
469 if (part_num
>= dev
->num_parts
) {
470 printf("invalid partition number %d for device %s%d (%s)\n",
471 part_num
, MTD_DEV_TYPE(dev
->id
->type
),
472 dev
->id
->num
, dev
->id
->mtd_id
);
476 /* locate partition number, return it */
478 list_for_each(entry
, &dev
->parts
) {
479 part
= list_entry(entry
, struct part_info
, link
);
481 if (part_num
== num
++) {
489 /***************************************************/
490 /* U-boot commands */
491 /***************************************************/
494 * Routine implementing fsload u-boot command. This routine tries to load
495 * a requested file from jffs2/cramfs filesystem on a current partition.
497 * @param cmdtp command internal data
498 * @param flag command flag
499 * @param argc number of arguments supplied to the command
500 * @param argv arguments list
501 * @return 0 on success, 1 otherwise
503 int do_jffs2_fsload(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
508 struct part_info
*part
;
509 ulong offset
= load_addr
;
511 /* pre-set Boot file name */
512 if ((filename
= getenv("bootfile")) == NULL
) {
520 offset
= simple_strtoul(argv
[1], NULL
, 16);
525 /* make sure we are in sync with env variables */
526 if (mtdparts_init() !=0)
529 if ((part
= jffs2_part_info(current_mtd_dev
, current_mtd_partnum
))){
531 /* check partition type for cramfs */
532 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
533 printf("### %s loading '%s' to 0x%lx\n", fsname
, filename
, offset
);
535 if (cramfs_check(part
)) {
536 size
= cramfs_load ((char *) offset
, part
, filename
);
538 /* if this is not cramfs assume jffs2 */
539 size
= jffs2_1pass_load((char *)offset
, part
, filename
);
544 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
545 fsname
, size
, offset
);
546 sprintf(buf
, "%x", size
);
547 setenv("filesize", buf
);
549 printf("### %s LOAD ERROR<%x> for %s!\n", fsname
, size
, filename
);
558 * Routine implementing u-boot ls command which lists content of a given
559 * directory on a current partition.
561 * @param cmdtp command internal data
562 * @param flag command flag
563 * @param argc number of arguments supplied to the command
564 * @param argv arguments list
565 * @return 0 on success, 1 otherwise
567 int do_jffs2_ls(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
569 char *filename
= "/";
571 struct part_info
*part
;
576 /* make sure we are in sync with env variables */
577 if (mtdparts_init() !=0)
580 if ((part
= jffs2_part_info(current_mtd_dev
, current_mtd_partnum
))){
582 /* check partition type for cramfs */
583 if (cramfs_check(part
)) {
584 ret
= cramfs_ls (part
, filename
);
586 /* if this is not cramfs assume jffs2 */
587 ret
= jffs2_1pass_ls(part
, filename
);
596 * Routine implementing u-boot fsinfo command. This routine prints out
597 * miscellaneous filesystem informations/statistics.
599 * @param cmdtp command internal data
600 * @param flag command flag
601 * @param argc number of arguments supplied to the command
602 * @param argv arguments list
603 * @return 0 on success, 1 otherwise
605 int do_jffs2_fsinfo(cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
607 struct part_info
*part
;
611 /* make sure we are in sync with env variables */
612 if (mtdparts_init() !=0)
615 if ((part
= jffs2_part_info(current_mtd_dev
, current_mtd_partnum
))){
617 /* check partition type for cramfs */
618 fsname
= (cramfs_check(part
) ? "CRAMFS" : "JFFS2");
619 printf("### filesystem type is %s\n", fsname
);
621 if (cramfs_check(part
)) {
622 ret
= cramfs_info (part
);
624 /* if this is not cramfs assume jffs2 */
625 ret
= jffs2_1pass_info(part
);
633 /***************************************************/
635 fsload
, 3, 0, do_jffs2_fsload
,
636 "load binary file from a filesystem image",
637 "[ off ] [ filename ]\n"
638 " - load binary file from flash bank\n"
642 ls
, 2, 1, do_jffs2_ls
,
643 "list files in a directory (default /)",
648 fsinfo
, 1, 1, do_jffs2_fsinfo
,
649 "print information about filesystems",
652 /***************************************************/