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
#include <linux/mtd/nand.h>
103
#if defined(CONFIG_CMD_ONENAND)
104
#include <linux/mtd/mtd.h>
105
#include <linux/mtd/onenand.h>
106
#include <onenand_uboot.h>
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
/* current active device and partition number */
136
#ifdef CONFIG_CMD_MTDPARTS
137
/* Use the ones declared in cmd_mtdparts.c */
138
extern struct mtd_device *current_mtd_dev;
139
extern u8 current_mtd_partnum;
142
struct mtd_device *current_mtd_dev = NULL;
143
u8 current_mtd_partnum = 0;
146
#if defined(CONFIG_CMD_CRAMFS)
147
extern int cramfs_check (struct part_info *info);
148
extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
149
extern int cramfs_ls (struct part_info *info, char *filename);
150
extern int cramfs_info (struct part_info *info);
152
/* defining empty macros for function names is ugly but avoids ifdef clutter
153
* all over the code */
154
#define cramfs_check(x) (0)
155
#define cramfs_load(x,y,z) (-1)
156
#define cramfs_ls(x,y) (0)
157
#define cramfs_info(x) (0)
160
#ifndef CONFIG_CMD_MTDPARTS
162
* Check device number to be within valid range for given device type.
164
* @param dev device to validate
165
* @return 0 if device is valid, 1 otherwise
167
static int mtd_device_validate(u8 type, u8 num, u32 *size)
169
if (type == MTD_DEV_TYPE_NOR) {
170
#if defined(CONFIG_CMD_FLASH)
171
if (num < CONFIG_SYS_MAX_FLASH_BANKS) {
172
extern flash_info_t flash_info[];
173
*size = flash_info[num].size;
178
printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
179
MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_FLASH_BANKS - 1);
181
printf("support for FLASH devices not present\n");
183
} else if (type == MTD_DEV_TYPE_NAND) {
184
#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
185
if (num < CONFIG_SYS_MAX_NAND_DEVICE) {
186
*size = nand_info[num].size;
190
printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
191
MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_NAND_DEVICE - 1);
193
printf("support for NAND devices not present\n");
195
} else if (type == MTD_DEV_TYPE_ONENAND) {
196
#if defined(CONFIG_CMD_ONENAND)
197
*size = onenand_mtd.size;
200
printf("support for OneNAND devices not present\n");
203
printf("Unknown defice type %d\n", type);
209
* Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
210
* return device type and number.
212
* @param id string describing device id
213
* @param ret_id output pointer to next char after parse completes (output)
214
* @param dev_type parsed device type (output)
215
* @param dev_num parsed device number (output)
216
* @return 0 on success, 1 otherwise
218
static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
223
if (strncmp(p, "nand", 4) == 0) {
224
*dev_type = MTD_DEV_TYPE_NAND;
226
} else if (strncmp(p, "nor", 3) == 0) {
227
*dev_type = MTD_DEV_TYPE_NOR;
229
} else if (strncmp(p, "onenand", 7) == 0) {
230
*dev_type = MTD_DEV_TYPE_ONENAND;
233
printf("incorrect device type in %s\n", id);
238
printf("incorrect device number in %s\n", id);
242
*dev_num = simple_strtoul(p, (char **)&p, 0);
249
* 'Static' version of command line mtdparts_init() routine. Single partition on
250
* a single device configuration.
254
* Calculate sector size.
256
* @return sector size
258
static inline u32 get_part_sector_size_nand(struct mtdids *id)
260
#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
263
nand = &nand_info[id->num];
265
return nand->erasesize;
272
static inline u32 get_part_sector_size_nor(struct mtdids *id, struct part_info *part)
274
#if defined(CONFIG_CMD_FLASH)
275
extern flash_info_t flash_info[];
277
u32 end_phys, start_phys, sector_size = 0, size = 0;
281
flash = &flash_info[id->num];
283
start_phys = flash->start[0] + part->offset;
284
end_phys = start_phys + part->size;
286
for (i = 0; i < flash->sector_count; i++) {
287
if (flash->start[i] >= end_phys)
290
if (flash->start[i] >= start_phys) {
291
if (i == flash->sector_count - 1) {
292
size = flash->start[0] + flash->size - flash->start[i];
294
size = flash->start[i+1] - flash->start[i];
297
if (sector_size < size)
309
static inline u32 get_part_sector_size_onenand(void)
311
#if defined(CONFIG_CMD_ONENAND)
312
struct mtd_info *mtd;
316
return mtd->erasesize;
323
static inline u32 get_part_sector_size(struct mtdids *id, struct part_info *part)
325
if (id->type == MTD_DEV_TYPE_NAND)
326
return get_part_sector_size_nand(id);
327
else if (id->type == MTD_DEV_TYPE_NOR)
328
return get_part_sector_size_nor(id, part);
329
else if (id->type == MTD_DEV_TYPE_ONENAND)
330
return get_part_sector_size_onenand();
332
DEBUGF("Error: Unknown device type.\n");
338
* Parse and initialize global mtdids mapping and create global
339
* device/partition list.
341
* 'Static' version of command line mtdparts_init() routine. Single partition on
342
* a single device configuration.
344
* @return 0 on success, 1 otherwise
346
int mtdparts_init(void)
348
static int initialized = 0;
352
DEBUGF("\n---mtdparts_init---\n");
355
struct part_info *part;
358
current_mtd_dev = (struct mtd_device *)
359
malloc(sizeof(struct mtd_device) +
360
sizeof(struct part_info) +
361
sizeof(struct mtdids));
362
if (!current_mtd_dev) {
363
printf("out of memory\n");
366
memset(current_mtd_dev, 0, sizeof(struct mtd_device) +
367
sizeof(struct part_info) + sizeof(struct mtdids));
369
id = (struct mtdids *)(current_mtd_dev + 1);
370
part = (struct part_info *)(id + 1);
373
id->mtd_id = "single part";
375
#if defined(CONFIG_JFFS2_DEV)
376
dev_name = CONFIG_JFFS2_DEV;
381
if ((mtd_id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
382
(mtd_device_validate(id->type, id->num, &size) != 0)) {
383
printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
384
free(current_mtd_dev);
388
INIT_LIST_HEAD(&id->link);
390
DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
391
id->type, id->num, id->size, id->mtd_id);
394
part->name = "static";
397
#if defined(CONFIG_JFFS2_PART_SIZE)
398
part->size = CONFIG_JFFS2_PART_SIZE;
400
part->size = SIZE_REMAINING;
403
#if defined(CONFIG_JFFS2_PART_OFFSET)
404
part->offset = CONFIG_JFFS2_PART_OFFSET;
406
part->offset = 0x00000000;
409
part->dev = current_mtd_dev;
410
INIT_LIST_HEAD(&part->link);
412
/* recalculate size if needed */
413
if (part->size == SIZE_REMAINING)
414
part->size = id->size - part->offset;
416
part->sector_size = get_part_sector_size(id, part);
418
DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
419
part->name, part->size, part->offset);
422
current_mtd_dev->id = id;
423
INIT_LIST_HEAD(¤t_mtd_dev->link);
424
current_mtd_dev->num_parts = 1;
425
INIT_LIST_HEAD(¤t_mtd_dev->parts);
426
list_add(&part->link, ¤t_mtd_dev->parts);
431
#endif /* #ifndef CONFIG_CMD_MTDPARTS */
434
* Return pointer to the partition of a requested number from a requested
437
* @param dev device that is to be searched for a partition
438
* @param part_num requested partition number
439
* @return pointer to the part_info, NULL otherwise
441
static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
443
struct list_head *entry;
444
struct part_info *part;
450
DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
451
part_num, MTD_DEV_TYPE(dev->id->type),
452
dev->id->num, dev->id->mtd_id);
454
if (part_num >= dev->num_parts) {
455
printf("invalid partition number %d for device %s%d (%s)\n",
456
part_num, MTD_DEV_TYPE(dev->id->type),
457
dev->id->num, dev->id->mtd_id);
461
/* locate partition number, return it */
463
list_for_each(entry, &dev->parts) {
464
part = list_entry(entry, struct part_info, link);
466
if (part_num == num++) {
474
/***************************************************/
475
/* U-boot commands */
476
/***************************************************/
479
* Routine implementing fsload u-boot command. This routine tries to load
480
* a requested file from jffs2/cramfs filesystem on a current partition.
482
* @param cmdtp command internal data
483
* @param flag command flag
484
* @param argc number of arguments supplied to the command
485
* @param argv arguments list
486
* @return 0 on success, 1 otherwise
488
int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
493
struct part_info *part;
494
ulong offset = load_addr;
496
/* pre-set Boot file name */
497
if ((filename = getenv("bootfile")) == NULL) {
505
offset = simple_strtoul(argv[1], NULL, 16);
510
/* make sure we are in sync with env variables */
511
if (mtdparts_init() !=0)
514
if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
516
/* check partition type for cramfs */
517
fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
518
printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
520
if (cramfs_check(part)) {
521
size = cramfs_load ((char *) offset, part, filename);
523
/* if this is not cramfs assume jffs2 */
524
size = jffs2_1pass_load((char *)offset, part, filename);
529
printf("### %s load complete: %d bytes loaded to 0x%lx\n",
530
fsname, size, offset);
531
sprintf(buf, "%x", size);
532
setenv("filesize", buf);
534
printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
543
* Routine implementing u-boot ls command which lists content of a given
544
* directory on a current partition.
546
* @param cmdtp command internal data
547
* @param flag command flag
548
* @param argc number of arguments supplied to the command
549
* @param argv arguments list
550
* @return 0 on success, 1 otherwise
552
int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
554
char *filename = "/";
556
struct part_info *part;
561
/* make sure we are in sync with env variables */
562
if (mtdparts_init() !=0)
565
if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
567
/* check partition type for cramfs */
568
if (cramfs_check(part)) {
569
ret = cramfs_ls (part, filename);
571
/* if this is not cramfs assume jffs2 */
572
ret = jffs2_1pass_ls(part, filename);
581
* Routine implementing u-boot fsinfo command. This routine prints out
582
* miscellaneous filesystem informations/statistics.
584
* @param cmdtp command internal data
585
* @param flag command flag
586
* @param argc number of arguments supplied to the command
587
* @param argv arguments list
588
* @return 0 on success, 1 otherwise
590
int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
592
struct part_info *part;
596
/* make sure we are in sync with env variables */
597
if (mtdparts_init() !=0)
600
if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
602
/* check partition type for cramfs */
603
fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
604
printf("### filesystem type is %s\n", fsname);
606
if (cramfs_check(part)) {
607
ret = cramfs_info (part);
609
/* if this is not cramfs assume jffs2 */
610
ret = jffs2_1pass_info(part);
618
/***************************************************/
620
fsload, 3, 0, do_jffs2_fsload,
621
"load binary file from a filesystem image",
622
"[ off ] [ filename ]\n"
623
" - load binary file from flash bank\n"
627
ls, 2, 1, do_jffs2_ls,
628
"list files in a directory (default /)",
633
fsinfo, 1, 1, do_jffs2_fsinfo,
634
"print information about filesystems",
637
/***************************************************/