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wdenkc6097192002-11-03 00:24:07 +00001/*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
Wolfgang Denk700a0c62005-08-08 01:03:24 +02004 *
wdenkdd875c72004-01-03 21:24:46 +00005 * (C) Copyright 2002
6 * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
Wolfgang Denk700a0c62005-08-08 01:03:24 +02007 *
wdenkdd875c72004-01-03 21:24:46 +00008 * (C) Copyright 2003
9 * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
wdenkc6097192002-11-03 00:24:07 +000010 *
Wolfgang Denk700a0c62005-08-08 01:03:24 +020011 * (C) Copyright 2005
12 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
13 *
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
16 * kernel tree.
17 *
18 * $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
19 * Copyright 2002 SYSGO Real-Time Solutions GmbH
20 *
wdenkc6097192002-11-03 00:24:07 +000021 * See file CREDITS for list of people who contributed to this
22 * project.
23 *
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.
28 *
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.
33 *
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,
37 * MA 02111-1307 USA
38 */
39
40/*
Wolfgang Denk700a0c62005-08-08 01:03:24 +020041 * Three environment variables are used by the parsing routines:
42 *
43 * 'partition' - keeps current partition identifier
44 *
45 * partition := <part-id>
46 * <part-id> := <dev-id>,part_num
47 *
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +020048 *
Wolfgang Denk700a0c62005-08-08 01:03:24 +020049 * 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
50 *
51 * mtdids=<idmap>[,<idmap>,...]
52 *
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)
57 *
58 *
59 * 'mtdparts' - partition list
60 *
61 * mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
62 *
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)
70 *
71 * Notes:
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
74 *
75 * Examples:
76 *
77 * 1 NOR Flash, with 1 single writable partition:
78 * mtdids=nor0=edb7312-nor
79 * mtdparts=mtdparts=edb7312-nor:-
80 *
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)
84 *
85 */
86
87/*
88 * JFFS2/CRAMFS support
wdenkc6097192002-11-03 00:24:07 +000089 */
90#include <common.h>
91#include <command.h>
Wolfgang Denk700a0c62005-08-08 01:03:24 +020092#include <malloc.h>
93#include <jffs2/jffs2.h>
Wolfgang Denk700a0c62005-08-08 01:03:24 +020094#include <linux/list.h>
95#include <linux/ctype.h>
wdenkc6097192002-11-03 00:24:07 +000096
97#if (CONFIG_COMMANDS & CFG_CMD_JFFS2)
wdenkdd875c72004-01-03 21:24:46 +000098
99#include <cramfs/cramfs_fs.h>
100
Bartlomiej Siekaaddb2e12006-03-05 18:57:33 +0100101#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>
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200106#include <nand.h>
Bartlomiej Siekaaddb2e12006-03-05 18:57:33 +0100107#endif /* !CFG_NAND_LEGACY */
108#endif /* (CONFIG_COMMANDS & CFG_CMD_NAND) */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200109/* enable/disable debugging messages */
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +0100110#define DEBUG_JFFS
111#undef DEBUG_JFFS
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200112
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +0100113#ifdef DEBUG_JFFS
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200114# define DEBUGF(fmt, args...) printf(fmt ,##args)
115#else
116# define DEBUGF(fmt, args...)
117#endif
118
119/* special size referring to all the remaining space in a partition */
120#define SIZE_REMAINING 0xFFFFFFFF
121
122/* special offset value, it is used when not provided by user
123 *
124 * this value is used temporarily during parsing, later such offests
125 * are recalculated */
126#define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
127
128/* minimum partition size */
129#define MIN_PART_SIZE 4096
130
131/* this flag needs to be set in part_info struct mask_flags
132 * field for read-only partitions */
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +0100133#define MTD_WRITEABLE_CMD 1
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200134
135#ifdef CONFIG_JFFS2_CMDLINE
136/* default values for mtdids and mtdparts variables */
137#if defined(MTDIDS_DEFAULT)
138static const char *const mtdids_default = MTDIDS_DEFAULT;
139#else
140#warning "MTDIDS_DEFAULT not defined!"
141static const char *const mtdids_default = NULL;
142#endif
143
144#if defined(MTDPARTS_DEFAULT)
145static const char *const mtdparts_default = MTDPARTS_DEFAULT;
146#else
147#warning "MTDPARTS_DEFAULT not defined!"
148static const char *const mtdparts_default = NULL;
149#endif
150
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
155static char last_ids[MTDIDS_MAXLEN];
156static char last_parts[MTDPARTS_MAXLEN];
157static char last_partition[PARTITION_MAXLEN];
158
159/* low level jffs2 cache cleaning routine */
160extern void jffs2_free_cache(struct part_info *part);
161
162/* mtdids mapping list, filled by parse_ids() */
163struct list_head mtdids;
164
165/* device/partition list, parse_cmdline() parses into here */
166struct list_head devices;
167#endif /* #ifdef CONFIG_JFFS2_CMDLINE */
168
169/* current active device and partition number */
170static struct mtd_device *current_dev = NULL;
171static u8 current_partnum = 0;
172
wdenk180d3f72004-01-04 16:28:35 +0000173extern int cramfs_check (struct part_info *info);
174extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
175extern int cramfs_ls (struct part_info *info, char *filename);
176extern int cramfs_info (struct part_info *info);
177
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200178static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num);
wdenkc6097192002-11-03 00:24:07 +0000179
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200180/* command line only routines */
181#ifdef CONFIG_JFFS2_CMDLINE
wdenkc6097192002-11-03 00:24:07 +0000182
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200183static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
184static int device_del(struct mtd_device *dev);
wdenk6705d812004-08-02 23:22:59 +0000185
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200186/**
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.
193 *
194 * @param ptr where parse begins
195 * @param retptr output pointer to next char after parse completes (output)
196 * @return resulting unsigned int
197 */
198static unsigned long memsize_parse (const char *const ptr, const char **retptr)
wdenkc6097192002-11-03 00:24:07 +0000199{
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200200 unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
201
202 switch (**retptr) {
203 case 'G':
204 case 'g':
205 ret <<= 10;
206 case 'M':
207 case 'm':
208 ret <<= 10;
209 case 'K':
210 case 'k':
211 ret <<= 10;
212 (*retptr)++;
213 default:
214 break;
215 }
216
217 return ret;
218}
219
220/**
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.
224 *
225 * Note, that this routine does not check for buffer overflow, it's the caller
226 * who must assure enough space.
227 *
228 * @param buf output buffer
229 * @param size size to be converted to string
230 */
231static void memsize_format(char *buf, u32 size)
232{
233#define SIZE_GB ((u32)1024*1024*1024)
234#define SIZE_MB ((u32)1024*1024)
235#define SIZE_KB ((u32)1024)
236
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);
243 else
244 sprintf(buf, "%lu", size);
245}
246
247/**
Marian Balakowicz7d454772005-09-11 15:27:12 +0200248 * This routine does global indexing of all partitions. Resulting index for
249 * current partition is saved in 'mtddevnum'. Current partition name in
250 * 'mtddevname'.
251 */
252static void index_partitions(void)
253{
254 char buf[16];
255 u16 mtddevnum;
256 struct part_info *part;
257 struct list_head *dentry;
258 struct mtd_device *dev;
259
260 DEBUGF("--- index partitions ---\n");
261
262 if (current_dev) {
263 mtddevnum = 0;
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);
270 break;
271 }
272 mtddevnum += dev->num_parts;
273 }
274
275 part = jffs2_part_info(current_dev, current_partnum);
276 setenv("mtddevname", part->name);
277
278 DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
279 } else {
280 setenv("mtddevnum", NULL);
281 setenv("mtddevname", NULL);
282
283 DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
284 }
285}
286
287/**
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200288 * Save current device and partition in environment variable 'partition'.
289 */
290static void current_save(void)
291{
292 char buf[16];
293
294 DEBUGF("--- current_save ---\n");
295
296 if (current_dev) {
297 sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_dev->id->type),
298 current_dev->id->num, current_partnum);
299
300 setenv("partition", buf);
301 strncpy(last_partition, buf, 16);
302
303 DEBUGF("=> partition %s\n", buf);
304 } else {
305 setenv("partition", NULL);
306 last_partition[0] = '\0';
307
308 DEBUGF("=> partition NULL\n");
309 }
Marian Balakowicz7d454772005-09-11 15:27:12 +0200310 index_partitions();
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200311}
312
313/**
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.
317 *
318 * @param id of the parent device
319 * @param part partition to validate
320 * @return 0 if partition is valid, 1 otherwise
321 */
322static int part_validate_nor(struct mtdids *id, struct part_info *part)
323{
324#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
325 /* info for FLASH chips */
Marian Balakowicze6f2e902005-10-11 19:09:42 +0200326 extern flash_info_t flash_info[];
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200327 flash_info_t *flash;
328 int offset_aligned;
329 u32 end_offset;
wdenkc6097192002-11-03 00:24:07 +0000330 int i;
331
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200332 flash = &flash_info[id->num];
wdenkc6097192002-11-03 00:24:07 +0000333
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200334 offset_aligned = 0;
335 for (i = 0; i < flash->sector_count; i++) {
336 if ((flash->start[i] - flash->start[0]) == part->offset) {
337 offset_aligned = 1;
338 break;
339 }
340 }
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);
344 return 1;
345 }
wdenkc6097192002-11-03 00:24:07 +0000346
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200347 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)
350 return 0;
351 }
wdenkc6097192002-11-03 00:24:07 +0000352
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200353 if (flash->size == end_offset)
354 return 0;
355
356 printf("%s%d: partition (%s) size alignment incorrect\n",
357 MTD_DEV_TYPE(id->type), id->num, part->name);
358#endif
359 return 1;
360}
361
362/**
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.
366 *
367 * @param id of the parent device
368 * @param part partition to validate
369 * @return 0 if partition is valid, 1 otherwise
370 */
371static int part_validate_nand(struct mtdids *id, struct part_info *part)
372{
373#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
374 /* info for NAND chips */
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200375 nand_info_t *nand;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200376
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200377 nand = &nand_info[id->num];
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200378
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);
382 return 1;
383 }
384
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);
388 return 1;
389 }
390
391 return 0;
wdenkc6097192002-11-03 00:24:07 +0000392#else
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200393 return 1;
wdenkc6097192002-11-03 00:24:07 +0000394#endif
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200395}
wdenkc6097192002-11-03 00:24:07 +0000396
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200397/**
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
401 * of part.
402 *
403 * @param id of the parent device
404 * @param part partition to validate
405 * @return 0 if partition is valid, 1 otherwise
406 */
407static int part_validate(struct mtdids *id, struct part_info *part)
408{
409 if (part->size == SIZE_REMAINING)
410 part->size = id->size - part->offset;
wdenkc6097192002-11-03 00:24:07 +0000411
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200412 if (part->offset > id->size) {
413 printf("%s: offset %08lx beyond flash size %08lx\n",
414 id->mtd_id, part->offset, id->size);
415 return 1;
wdenkc6097192002-11-03 00:24:07 +0000416 }
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200417
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);
421 return 1;
422 }
423
424 if (part->offset + part->size > id->size) {
425 printf("%s: partitioning exceeds flash size\n", id->mtd_id);
426 return 1;
427 }
428
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);
433 else
434 DEBUGF("part_validate: invalid dev type\n");
435
436 return 1;
437}
438
439/**
440 * Delete selected partition from the partion list of the specified device.
441 *
442 * @param dev device to delete partition from
443 * @param part partition to delete
444 * @return 0 on success, 1 otherwise
445 */
446static int part_del(struct mtd_device *dev, struct part_info *part)
447{
Marian Balakowicz7d454772005-09-11 15:27:12 +0200448 u8 current_save_needed = 0;
449
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200450 /* if there is only one partition, remove whole device */
451 if (dev->num_parts == 1)
452 return device_del(dev);
453
454 /* otherwise just delete this partition */
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200455
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200456 if (dev == current_dev) {
457 /* we are modyfing partitions for the current device,
458 * update current */
459 struct part_info *curr_pi;
460 curr_pi = jffs2_part_info(current_dev, current_partnum);
461
462 if (curr_pi) {
463 if (curr_pi == part) {
464 printf("current partition deleted, resetting current to 0\n");
465 current_partnum = 0;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200466 } else if (part->offset <= curr_pi->offset) {
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200467 current_partnum--;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200468 }
Marian Balakowicz7d454772005-09-11 15:27:12 +0200469 current_save_needed = 1;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200470 }
471 }
472
Bartlomiej Siekaaddb2e12006-03-05 18:57:33 +0100473#ifdef CFG_NAND_LEGACY
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200474 jffs2_free_cache(part);
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200475#endif
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200476 list_del(&part->link);
477 free(part);
478 dev->num_parts--;
479
Marian Balakowicz7d454772005-09-11 15:27:12 +0200480 if (current_save_needed > 0)
481 current_save();
482 else
483 index_partitions();
484
wdenkc6097192002-11-03 00:24:07 +0000485 return 0;
486}
wdenk998eaae2004-04-18 19:43:36 +0000487
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200488/**
489 * Delete all partitions from parts head list, free memory.
490 *
491 * @param head list of partitions to delete
492 */
493static void part_delall(struct list_head *head)
wdenk998eaae2004-04-18 19:43:36 +0000494{
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200495 struct list_head *entry, *n;
496 struct part_info *part_tmp;
wdenk998eaae2004-04-18 19:43:36 +0000497
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200498 /* 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);
wdenk998eaae2004-04-18 19:43:36 +0000501
Bartlomiej Siekaaddb2e12006-03-05 18:57:33 +0100502#ifdef CFG_NAND_LEGACY
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200503 jffs2_free_cache(part_tmp);
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200504#endif
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200505 list_del(entry);
506 free(part_tmp);
wdenk998eaae2004-04-18 19:43:36 +0000507 }
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200508}
509
510/**
511 * Add new partition to the supplied partition list. Make sure partitions are
512 * sorted by offset in ascending order.
513 *
514 * @param head list this partition is to be added to
515 * @param new partition to be added
516 */
517static int part_sort_add(struct mtd_device *dev, struct part_info *part)
518{
519 struct list_head *entry;
520 struct part_info *new_pi, *curr_pi;
521
522 /* link partition to parrent dev */
523 part->dev = dev;
524
525 if (list_empty(&dev->parts)) {
526 DEBUGF("part_sort_add: list empty\n");
527 list_add(&part->link, &dev->parts);
Marian Balakowicz7d454772005-09-11 15:27:12 +0200528 dev->num_parts++;
529 index_partitions();
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200530 return 0;
531 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200532
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200533 new_pi = list_entry(&part->link, struct part_info, link);
534
535 /* get current partition info if we are updating current device */
536 curr_pi = NULL;
537 if (dev == current_dev)
538 curr_pi = jffs2_part_info(current_dev, current_partnum);
539
540 list_for_each(entry, &dev->parts) {
541 struct part_info *pi;
542
543 pi = list_entry(entry, struct part_info, link);
544
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");
548 return 1;
549 }
550
551 if (new_pi->offset <= pi->offset) {
552 list_add_tail(&part->link, entry);
Marian Balakowicz7d454772005-09-11 15:27:12 +0200553 dev->num_parts++;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200554
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200555 if (curr_pi && (pi->offset <= curr_pi->offset)) {
556 /* we are modyfing partitions for the current
557 * device, update current */
558 current_partnum++;
559 current_save();
Marian Balakowicz7d454772005-09-11 15:27:12 +0200560 } else {
561 index_partitions();
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200562 }
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200563 return 0;
564 }
565 }
Marian Balakowicz7d454772005-09-11 15:27:12 +0200566
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200567 list_add_tail(&part->link, &dev->parts);
Marian Balakowicz7d454772005-09-11 15:27:12 +0200568 dev->num_parts++;
569 index_partitions();
wdenk998eaae2004-04-18 19:43:36 +0000570 return 0;
571}
572
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200573/**
574 * Add provided partition to the partition list of a given device.
575 *
576 * @param dev device to which partition is added
577 * @param part partition to be added
578 * @return 0 on success, 1 otherwise
579 */
580static int part_add(struct mtd_device *dev, struct part_info *part)
wdenkc6097192002-11-03 00:24:07 +0000581{
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200582 /* verify alignment and size */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200583 if (part_validate(dev->id, part) != 0)
584 return 1;
585
586 /* partition is ok, add it to the list */
587 if (part_sort_add(dev, part) != 0)
588 return 1;
589
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200590 return 0;
591}
592
593/**
594 * Parse one partition definition, allocate memory and return pointer to this
595 * location in retpart.
596 *
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
601 */
602static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
603{
604 struct part_info *part;
605 unsigned long size;
606 unsigned long offset;
607 const char *name;
608 int name_len;
609 unsigned int mask_flags;
610 const char *p;
611
612 p = partdef;
613 *retpart = NULL;
614 *ret = NULL;
615
616 /* fetch the partition size */
617 if (*p == '-') {
618 /* assign all remaining space to this partition */
619 DEBUGF("'-': remaining size assigned\n");
620 size = SIZE_REMAINING;
621 p++;
622 } else {
623 size = memsize_parse(p, &p);
624 if (size < MIN_PART_SIZE) {
625 printf("partition size too small (%lx)\n", size);
626 return 1;
627 }
628 }
629
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200630 /* check for offset */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200631 offset = OFFSET_NOT_SPECIFIED;
632 if (*p == '@') {
633 p++;
634 offset = memsize_parse(p, &p);
635 }
636
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200637 /* now look for the name */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200638 if (*p == '(') {
639 name = ++p;
640 if ((p = strchr(name, ')')) == NULL) {
641 printf("no closing ) found in partition name\n");
642 return 1;
643 }
644 name_len = p - name + 1;
645 if ((name_len - 1) == 0) {
646 printf("empty partition name\n");
647 return 1;
648 }
649 p++;
650 } else {
651 /* 0x00000000@0x00000000 */
652 name_len = 22;
653 name = NULL;
654 }
655
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200656 /* test for options */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200657 mask_flags = 0;
658 if (strncmp(p, "ro", 2) == 0) {
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +0100659 mask_flags |= MTD_WRITEABLE_CMD;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200660 p += 2;
661 }
662
663 /* check for next partition definition */
664 if (*p == ',') {
665 if (size == SIZE_REMAINING) {
666 *ret = NULL;
667 printf("no partitions allowed after a fill-up partition\n");
668 return 1;
669 }
670 *ret = ++p;
671 } else if ((*p == ';') || (*p == '\0')) {
672 *ret = p;
673 } else {
674 printf("unexpected character '%c' at the end of partition\n", *p);
675 *ret = NULL;
676 return 1;
677 }
678
679 /* allocate memory */
680 part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
681 if (!part) {
682 printf("out of memory\n");
683 return 1;
684 }
685 memset(part, 0, sizeof(struct part_info) + name_len);
686 part->size = size;
687 part->offset = offset;
688 part->mask_flags = mask_flags;
689 part->name = (char *)(part + 1);
690
691 if (name) {
692 /* copy user provided name */
693 strncpy(part->name, name, name_len - 1);
694 part->auto_name = 0;
695 } else {
696 /* auto generated name in form of size@offset */
697 sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
698 part->auto_name = 1;
699 }
700
701 part->name[name_len - 1] = '\0';
702 INIT_LIST_HEAD(&part->link);
703
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);
707
708 *retpart = part;
709 return 0;
710}
711#endif/* #ifdef CONFIG_JFFS2_CMDLINE */
712
713/**
714 * Check device number to be within valid range for given device type.
715 *
716 * @param dev device to validate
717 * @return 0 if device is valid, 1 otherwise
718 */
719static int device_validate(u8 type, u8 num, u32 *size)
720{
721 if (type == MTD_DEV_TYPE_NOR) {
722#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
723 if (num < CFG_MAX_FLASH_BANKS) {
Marian Balakowicze6f2e902005-10-11 19:09:42 +0200724 extern flash_info_t flash_info[];
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200725 *size = flash_info[num].size;
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200726
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200727 return 0;
728 }
729
730 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
731 MTD_DEV_TYPE(type), num, CFG_MAX_FLASH_BANKS - 1);
732#else
733 printf("support for FLASH devices not present\n");
734#endif
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) {
Bartlomiej Siekaaddb2e12006-03-05 18:57:33 +0100738#ifndef CFG_NAND_LEGACY
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200739 *size = nand_info[num].size;
740#else
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200741 extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
742 *size = nand_dev_desc[num].totlen;
Wolfgang Denkac7eb8a2005-09-14 23:53:32 +0200743#endif
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200744 return 0;
745 }
746
747 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
748 MTD_DEV_TYPE(type), num, CFG_MAX_NAND_DEVICE - 1);
749#else
750 printf("support for NAND devices not present\n");
751#endif
752 }
753
754 return 1;
755}
756
757#ifdef CONFIG_JFFS2_CMDLINE
758/**
759 * Delete all mtd devices from a supplied devices list, free memory allocated for
760 * each device and delete all device partitions.
761 *
762 * @return 0 on success, 1 otherwise
763 */
764static int device_delall(struct list_head *head)
765{
766 struct list_head *entry, *n;
767 struct mtd_device *dev_tmp;
768
769 /* clean devices list */
770 list_for_each_safe(entry, n, head) {
771 dev_tmp = list_entry(entry, struct mtd_device, link);
772 list_del(entry);
773 part_delall(&dev_tmp->parts);
774 free(dev_tmp);
775 }
776 INIT_LIST_HEAD(&devices);
777
778 return 0;
779}
780
781/**
782 * If provided device exists it's partitions are deleted, device is removed
783 * from device list and device memory is freed.
784 *
785 * @param dev device to be deleted
786 * @return 0 on success, 1 otherwise
787 */
788static int device_del(struct mtd_device *dev)
789{
790 part_delall(&dev->parts);
791 list_del(&dev->link);
792 free(dev);
793
794 if (dev == current_dev) {
795 /* we just deleted current device */
796 if (list_empty(&devices)) {
797 current_dev = NULL;
798 } else {
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);
802 current_partnum = 0;
803 }
804 current_save();
Marian Balakowicz7d454772005-09-11 15:27:12 +0200805 return 0;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200806 }
807
Marian Balakowicz7d454772005-09-11 15:27:12 +0200808 index_partitions();
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200809 return 0;
810}
811
812/**
813 * Search global device list and return pointer to the device of type and num
814 * specified.
815 *
816 * @param type device type
817 * @param num device number
818 * @return NULL if requested device does not exist
819 */
820static struct mtd_device* device_find(u8 type, u8 num)
821{
822 struct list_head *entry;
823 struct mtd_device *dev_tmp;
824
825 list_for_each(entry, &devices) {
826 dev_tmp = list_entry(entry, struct mtd_device, link);
827
828 if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
829 return dev_tmp;
830 }
831
832 return NULL;
833}
834
835/**
836 * Add specified device to the global device list.
837 *
838 * @param dev device to be added
839 */
840static void device_add(struct mtd_device *dev)
841{
Marian Balakowicz7d454772005-09-11 15:27:12 +0200842 u8 current_save_needed = 0;
843
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200844 if (list_empty(&devices)) {
845 current_dev = dev;
846 current_partnum = 0;
Marian Balakowicz7d454772005-09-11 15:27:12 +0200847 current_save_needed = 1;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200848 }
849
850 list_add_tail(&dev->link, &devices);
Marian Balakowicz7d454772005-09-11 15:27:12 +0200851
852 if (current_save_needed > 0)
853 current_save();
854 else
855 index_partitions();
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200856}
857
858/**
859 * Parse device type, name and mtd-id. If syntax is ok allocate memory and
860 * return pointer to the device structure.
861 *
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
866 */
867static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
868{
869 struct mtd_device *dev;
870 struct part_info *part;
871 struct mtdids *id;
872 const char *mtd_id;
873 unsigned int mtd_id_len;
874 const char *p, *pend;
875 LIST_HEAD(tmp_list);
876 struct list_head *entry, *n;
877 u16 num_parts;
878 u32 offset;
879 int err = 1;
880
881 p = mtd_dev;
882 *retdev = NULL;
883 *ret = NULL;
884
885 DEBUGF("===device_parse===\n");
886
887 /* fetch <mtd-id> */
888 mtd_id = p;
889 if (!(p = strchr(mtd_id, ':'))) {
890 printf("no <mtd-id> identifier\n");
891 return 1;
892 }
893 mtd_id_len = p - mtd_id + 1;
894 p++;
895
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);
899 return 1;
900 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200901
902 DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200903 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);
907
908
909 /* parse partitions */
910 num_parts = 0;
911
912 offset = 0;
913 if ((dev = device_find(id->type, id->num)) != NULL) {
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200914 /* if device already exists start at the end of the last partition */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200915 part = list_entry(dev->parts.prev, struct part_info, link);
916 offset = part->offset + part->size;
917 }
918
919 while (p && (*p != '\0') && (*p != ';')) {
920 err = 1;
921 if ((part_parse(p, &p, &part) != 0) || (!part))
922 break;
923
924 /* calculate offset when not specified */
925 if (part->offset == OFFSET_NOT_SPECIFIED)
926 part->offset = offset;
927 else
928 offset = part->offset;
929
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200930 /* verify alignment and size */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200931 if (part_validate(id, part) != 0)
932 break;
933
934 offset += part->size;
935
936 /* partition is ok, add it to the list */
937 list_add_tail(&part->link, &tmp_list);
938 num_parts++;
939 err = 0;
940 }
941 if (err == 1) {
942 part_delall(&tmp_list);
943 return 1;
944 }
945
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);
949 return 1;
950 }
951
952 DEBUGF("\ntotal partitions: %d\n", num_parts);
953
954 /* check for next device presence */
955 if (p) {
956 if (*p == ';') {
957 *ret = ++p;
958 } else if (*p == '\0') {
959 *ret = p;
960 } else {
961 printf("unexpected character '%c' at the end of device\n", *p);
962 *ret = NULL;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +0200963 return 1;
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200964 }
965 }
966
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");
970 return 1;
971 }
972 memset(dev, 0, sizeof(struct mtd_device));
973 dev->id = id;
Marian Balakowicz7d454772005-09-11 15:27:12 +0200974 dev->num_parts = 0; /* part_sort_add increments num_parts */
Wolfgang Denk700a0c62005-08-08 01:03:24 +0200975 INIT_LIST_HEAD(&dev->parts);
976 INIT_LIST_HEAD(&dev->link);
977
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);
981 list_del(entry);
982 if (part_sort_add(dev, part) != 0) {
983 device_del(dev);
984 return 1;
985 }
986 }
987
988 *retdev = dev;
989
990 DEBUGF("===\n\n");
991 return 0;
992}
993
994/**
995 * Initialize global device list.
996 *
997 * @return 0 on success, 1 otherwise
998 */
999static int devices_init(void)
1000{
1001 last_parts[0] = '\0';
1002 current_dev = NULL;
1003 current_save();
1004
1005 return device_delall(&devices);
1006}
1007
1008/*
1009 * Search global mtdids list and find id of requested type and number.
1010 *
1011 * @return pointer to the id if it exists, NULL otherwise
1012 */
1013static struct mtdids* id_find(u8 type, u8 num)
1014{
1015 struct list_head *entry;
1016 struct mtdids *id;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001017
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001018 list_for_each(entry, &mtdids) {
1019 id = list_entry(entry, struct mtdids, link);
1020
1021 if ((id->type == type) && (id->num == num))
1022 return id;
1023 }
1024
1025 return NULL;
1026}
1027
1028/**
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001029 * Search global mtdids list and find id of a requested mtd_id.
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001030 *
1031 * Note: first argument is not null terminated.
1032 *
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
1036 */
1037static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
1038{
1039 struct list_head *entry;
1040 struct mtdids *id;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001041
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001042 DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
1043 mtd_id_len, mtd_id, mtd_id_len);
1044
1045 list_for_each(entry, &mtdids) {
1046 id = list_entry(entry, struct mtdids, link);
1047
1048 DEBUGF("entry: '%s' (len = %d)\n",
1049 id->mtd_id, strlen(id->mtd_id));
1050
1051 if (mtd_id_len != strlen(id->mtd_id))
1052 continue;
1053 if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
1054 return id;
1055 }
1056
1057 return NULL;
1058}
1059#endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1060
1061/**
1062 * Parse device id string <dev-id> := 'nand'|'nor'<dev-num>, return device
1063 * type and number.
1064 *
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
1070 */
1071int id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
1072{
1073 const char *p = id;
1074
1075 *dev_type = 0;
1076 if (strncmp(p, "nand", 4) == 0) {
1077 *dev_type = MTD_DEV_TYPE_NAND;
1078 p += 4;
1079 } else if (strncmp(p, "nor", 3) == 0) {
1080 *dev_type = MTD_DEV_TYPE_NOR;
1081 p += 3;
1082 } else {
1083 printf("incorrect device type in %s\n", id);
1084 return 1;
1085 }
1086
1087 if (!isdigit(*p)) {
1088 printf("incorrect device number in %s\n", id);
1089 return 1;
1090 }
1091
1092 *dev_num = simple_strtoul(p, (char **)&p, 0);
1093 if (ret_id)
1094 *ret_id = p;
1095 return 0;
1096}
1097
1098#ifdef CONFIG_JFFS2_CMDLINE
1099/**
1100 * Process all devices and generate corresponding mtdparts string describing
1101 * all partitions on all devices.
1102 *
1103 * @param buf output buffer holding generated mtdparts string (output)
1104 * @param buflen buffer size
1105 * @return 0 on success, 1 otherwise
1106 */
1107static int generate_mtdparts(char *buf, u32 buflen)
1108{
1109 struct list_head *pentry, *dentry;
1110 struct mtd_device *dev;
1111 struct part_info *part, *prev_part;
1112 char *p = buf;
1113 char tmpbuf[32];
1114 u32 size, offset, len, part_cnt;
1115 u32 maxlen = buflen - 1;
1116
1117 DEBUGF("--- generate_mtdparts ---\n");
1118
1119 if (list_empty(&devices)) {
1120 buf[0] = '\0';
1121 return 0;
1122 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001123
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001124 sprintf(p, "mtdparts=");
1125 p += 9;
1126
1127 list_for_each(dentry, &devices) {
1128 dev = list_entry(dentry, struct mtd_device, link);
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001129
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001130 /* copy mtd_id */
1131 len = strlen(dev->id->mtd_id) + 1;
1132 if (len > maxlen)
1133 goto cleanup;
1134 memcpy(p, dev->id->mtd_id, len - 1);
1135 p += len - 1;
1136 *(p++) = ':';
1137 maxlen -= len;
1138
1139 /* format partitions */
1140 prev_part = NULL;
1141 part_cnt = 0;
1142 list_for_each(pentry, &dev->parts) {
1143 part = list_entry(pentry, struct part_info, link);
1144 size = part->size;
1145 offset = part->offset;
1146 part_cnt++;
1147
1148 /* partition size */
1149 memsize_format(tmpbuf, size);
1150 len = strlen(tmpbuf);
1151 if (len > maxlen)
1152 goto cleanup;
1153 memcpy(p, tmpbuf, len);
1154 p += len;
1155 maxlen -= len;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001156
1157
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001158 /* add offset only when there is a gap between
1159 * partitions */
1160 if ((!prev_part && (offset != 0)) ||
1161 (prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
1162
1163 memsize_format(tmpbuf, offset);
1164 len = strlen(tmpbuf) + 1;
1165 if (len > maxlen)
1166 goto cleanup;
1167 *(p++) = '@';
1168 memcpy(p, tmpbuf, len - 1);
1169 p += len - 1;
1170 maxlen -= len;
1171 }
1172
1173 /* copy name only if user supplied */
1174 if(!part->auto_name) {
1175 len = strlen(part->name) + 2;
1176 if (len > maxlen)
1177 goto cleanup;
1178
1179 *(p++) = '(';
1180 memcpy(p, part->name, len - 2);
1181 p += len - 2;
1182 *(p++) = ')';
1183 maxlen -= len;
1184 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001185
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001186 /* ro mask flag */
Bartlomiej Sieka038ccac2006-02-24 09:37:22 +01001187 if (part->mask_flags && MTD_WRITEABLE_CMD) {
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001188 len = 2;
1189 if (len > maxlen)
1190 goto cleanup;
1191 *(p++) = 'r';
1192 *(p++) = 'o';
1193 maxlen -= 2;
1194 }
1195
1196 /* print ',' separator if there are other partitions
1197 * following */
1198 if (dev->num_parts > part_cnt) {
1199 if (1 > maxlen)
1200 goto cleanup;
1201 *(p++) = ',';
1202 maxlen--;
1203 }
1204 prev_part = part;
1205 }
1206 /* print ';' separator if there are other devices following */
1207 if (dentry->next != &devices) {
1208 if (1 > maxlen)
1209 goto cleanup;
1210 *(p++) = ';';
1211 maxlen--;
1212 }
1213 }
1214
1215 /* we still have at least one char left, as we decremented maxlen at
1216 * the begining */
1217 *p = '\0';
1218
1219 return 0;
1220
1221cleanup:
1222 last_parts[0] = '\0';
1223 return 1;
1224}
1225
1226/**
1227 * Call generate_mtdparts to process all devices and generate corresponding
1228 * mtdparts string, save it in mtdparts environment variable.
1229 *
1230 * @param buf output buffer holding generated mtdparts string (output)
1231 * @param buflen buffer size
1232 * @return 0 on success, 1 otherwise
1233 */
1234static int generate_mtdparts_save(char *buf, u32 buflen)
1235{
1236 int ret;
1237
1238 ret = generate_mtdparts(buf, buflen);
1239
1240 if ((buf[0] != '\0') && (ret == 0))
1241 setenv("mtdparts", buf);
1242 else
1243 setenv("mtdparts", NULL);
1244
1245 return ret;
1246}
1247
1248/**
1249 * Format and print out a partition list for each device from global device
1250 * list.
1251 */
1252static void list_partitions(void)
1253{
1254 struct list_head *dentry, *pentry;
1255 struct part_info *part;
1256 struct mtd_device *dev;
1257 int part_num;
1258
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");
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001266
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001267 /* list partitions for given device */
1268 part_num = 0;
1269 list_for_each(pentry, &dev->parts) {
1270 part = list_entry(pentry, struct part_info, link);
Wolfgang Denka87d46f2006-09-13 10:23:06 +02001271 printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001272 part_num, part->name, part->size,
1273 part->offset, part->mask_flags);
1274
1275 part_num++;
1276 }
1277 }
1278 if (list_empty(&devices))
1279 printf("no partitions defined\n");
1280
1281 /* current_dev is not NULL only when we have non empty device list */
1282 if (current_dev) {
1283 part = jffs2_part_info(current_dev, current_partnum);
1284 if (part) {
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);
1289 } else {
1290 printf("could not get current partition info\n\n");
1291 }
1292 }
1293
1294 printf("\ndefaults:\n");
1295 printf("mtdids : %s\n", mtdids_default);
1296 printf("mtdparts: %s\n", mtdparts_default);
1297}
1298
1299/**
1300 * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
1301 * corresponding device and verify partition number.
1302 *
1303 * @param id string describing device and partition
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
1308 */
1309int find_dev_and_part(const char *id, struct mtd_device **dev,
1310 u8 *part_num, struct part_info **part)
1311{
1312 u8 type, dnum, pnum;
1313 const char *p;
1314
1315 DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
1316
1317 p = id;
1318 *dev = NULL;
1319 *part = NULL;
1320 *part_num = 0;
1321
1322 if (id_parse(p, &p, &type, &dnum) != 0)
1323 return 1;
1324
1325 if ((*p++ != ',') || (*p == '\0')) {
1326 printf("no partition number specified\n");
1327 return 1;
1328 }
1329 pnum = simple_strtoul(p, (char **)&p, 0);
1330 if (*p != '\0') {
1331 printf("unexpected trailing character '%c'\n", *p);
1332 return 1;
1333 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001334
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001335 if ((*dev = device_find(type, dnum)) == NULL) {
1336 printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
1337 return 1;
1338 }
1339
1340 if ((*part = jffs2_part_info(*dev, pnum)) == NULL) {
1341 printf("no such partition\n");
1342 *dev = NULL;
1343 return 1;
1344 }
1345
1346 *part_num = pnum;
1347
1348 return 0;
1349}
1350
1351/**
1352 * Find and delete partition. For partition id format see find_dev_and_part().
1353 *
1354 * @param id string describing device and partition
1355 * @return 0 on success, 1 otherwise
1356 */
1357static int delete_partition(const char *id)
1358{
1359 u8 pnum;
1360 struct mtd_device *dev;
1361 struct part_info *part;
1362
1363 if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
1364
1365 DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
1366 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
1367 part->name, part->size, part->offset);
1368
1369 if (part_del(dev, part) != 0)
1370 return 1;
1371
1372 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
1373 printf("generated mtdparts too long, reseting to null\n");
1374 return 1;
1375 }
1376 return 0;
1377 }
1378
1379 printf("partition %s not found\n", id);
1380 return 1;
1381}
1382
1383/**
1384 * Accept character string describing mtd partitions and call device_parse()
1385 * for each entry. Add created devices to the global devices list.
1386 *
1387 * @param mtdparts string specifing mtd partitions
1388 * @return 0 on success, 1 otherwise
1389 */
1390static int parse_mtdparts(const char *const mtdparts)
1391{
1392 const char *p = mtdparts;
1393 struct mtd_device *dev;
1394 int err = 1;
1395
1396 DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
1397
1398 /* delete all devices and partitions */
1399 if (devices_init() != 0) {
1400 printf("could not initialise device list\n");
1401 return err;
1402 }
1403
1404 /* re-read 'mtdparts' variable, devices_init may be updating env */
1405 p = getenv("mtdparts");
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001406
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001407 if (strncmp(p, "mtdparts=", 9) != 0) {
1408 printf("mtdparts variable doesn't start with 'mtdparts='\n");
1409 return err;
1410 }
1411 p += 9;
1412
1413 while (p && (*p != '\0')) {
1414 err = 1;
1415 if ((device_parse(p, &p, &dev) != 0) || (!dev))
1416 break;
1417
1418 DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
1419 dev->id->num, dev->id->mtd_id);
1420
1421 /* check if parsed device is already on the list */
1422 if (device_find(dev->id->type, dev->id->num) != NULL) {
1423 printf("device %s%d redefined, please correct mtdparts variable\n",
1424 MTD_DEV_TYPE(dev->id->type), dev->id->num);
1425 break;
1426 }
1427
1428 list_add_tail(&dev->link, &devices);
1429 err = 0;
1430 }
1431 if (err == 1) {
1432 device_delall(&devices);
1433 return 1;
1434 }
1435
1436 return 0;
1437}
1438
1439/**
1440 * Parse provided string describing mtdids mapping (see file header for mtdids
1441 * variable format). Allocate memory for each entry and add all found entries
1442 * to the global mtdids list.
1443 *
1444 * @param ids mapping string
1445 * @return 0 on success, 1 otherwise
1446 */
1447static int parse_mtdids(const char *const ids)
1448{
1449 const char *p = ids;
1450 const char *mtd_id;
1451 int mtd_id_len;
1452 struct mtdids *id;
1453 struct list_head *entry, *n;
1454 struct mtdids *id_tmp;
1455 u8 type, num;
1456 u32 size;
1457 int ret = 1;
1458
1459 DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
1460
1461 /* clean global mtdids list */
1462 list_for_each_safe(entry, n, &mtdids) {
1463 id_tmp = list_entry(entry, struct mtdids, link);
1464 DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
1465 list_del(entry);
1466 free(id_tmp);
1467 }
1468 last_ids[0] = '\0';
1469 INIT_LIST_HEAD(&mtdids);
1470
1471 while(p && (*p != '\0')) {
1472
1473 ret = 1;
1474 /* parse 'nor'|'nand'<dev-num> */
1475 if (id_parse(p, &p, &type, &num) != 0)
1476 break;
1477
1478 if (*p != '=') {
1479 printf("mtdids: incorrect <dev-num>\n");
1480 break;
1481 }
1482 p++;
1483
1484 /* check if requested device exists */
1485 if (device_validate(type, num, &size) != 0)
1486 return 1;
1487
1488 /* locate <mtd-id> */
1489 mtd_id = p;
1490 if ((p = strchr(mtd_id, ',')) != NULL) {
1491 mtd_id_len = p - mtd_id + 1;
1492 p++;
1493 } else {
1494 mtd_id_len = strlen(mtd_id) + 1;
1495 }
1496 if (mtd_id_len == 0) {
1497 printf("mtdids: no <mtd-id> identifier\n");
1498 break;
1499 }
1500
1501 /* check if this id is already on the list */
1502 int double_entry = 0;
1503 list_for_each(entry, &mtdids) {
1504 id_tmp = list_entry(entry, struct mtdids, link);
1505 if ((id_tmp->type == type) && (id_tmp->num == num)) {
1506 double_entry = 1;
1507 break;
1508 }
1509 }
1510 if (double_entry) {
1511 printf("device id %s%d redefined, please correct mtdids variable\n",
1512 MTD_DEV_TYPE(type), num);
1513 break;
1514 }
1515
1516 /* allocate mtdids structure */
1517 if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
1518 printf("out of memory\n");
1519 break;
1520 }
1521 memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
1522 id->num = num;
1523 id->type = type;
1524 id->size = size;
1525 id->mtd_id = (char *)(id + 1);
1526 strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
1527 id->mtd_id[mtd_id_len - 1] = '\0';
1528 INIT_LIST_HEAD(&id->link);
1529
1530 DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
1531 MTD_DEV_TYPE(id->type), id->num,
1532 id->size, id->mtd_id);
1533
1534 list_add_tail(&id->link, &mtdids);
1535 ret = 0;
1536 }
1537 if (ret == 1) {
1538 /* clean mtdids list and free allocated memory */
1539 list_for_each_safe(entry, n, &mtdids) {
1540 id_tmp = list_entry(entry, struct mtdids, link);
1541 list_del(entry);
1542 free(id_tmp);
1543 }
1544 return 1;
1545 }
1546
1547 return 0;
1548}
1549
1550/**
1551 * Parse and initialize global mtdids mapping and create global
1552 * device/partition list.
1553 *
1554 * @return 0 on success, 1 otherwise
1555 */
1556int mtdparts_init(void)
1557{
1558 static int initialized = 0;
1559 const char *ids, *parts;
1560 const char *current_partition;
1561 int ids_changed;
1562 char tmp_ep[PARTITION_MAXLEN];
1563
1564 DEBUGF("\n---mtdparts_init---\n");
1565 if (!initialized) {
1566 INIT_LIST_HEAD(&mtdids);
1567 INIT_LIST_HEAD(&devices);
1568 memset(last_ids, 0, MTDIDS_MAXLEN);
1569 memset(last_parts, 0, MTDPARTS_MAXLEN);
1570 memset(last_partition, 0, PARTITION_MAXLEN);
1571 initialized = 1;
1572 }
1573
1574 /* get variables */
1575 ids = getenv("mtdids");
1576 parts = getenv("mtdparts");
1577 current_partition = getenv("partition");
1578
1579 /* save it for later parsing, cannot rely on current partition pointer
1580 * as 'partition' variable may be updated during init */
1581 tmp_ep[0] = '\0';
1582 if (current_partition)
1583 strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
1584
1585 DEBUGF("last_ids : %s\n", last_ids);
1586 DEBUGF("env_ids : %s\n", ids);
1587 DEBUGF("last_parts: %s\n", last_parts);
1588 DEBUGF("env_parts : %s\n\n", parts);
1589
1590 DEBUGF("last_partition : %s\n", last_partition);
1591 DEBUGF("env_partition : %s\n", current_partition);
1592
1593 /* if mtdids varible is empty try to use defaults */
1594 if (!ids) {
1595 if (mtdids_default) {
1596 DEBUGF("mtdids variable not defined, using default\n");
1597 ids = mtdids_default;
1598 setenv("mtdids", (char *)ids);
1599 } else {
1600 printf("mtdids not defined, no default present\n");
1601 return 1;
1602 }
1603 }
1604 if (strlen(ids) > MTDIDS_MAXLEN - 1) {
1605 printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
1606 return 1;
1607 }
1608
1609 /* do no try to use defaults when mtdparts variable is not defined,
1610 * just check the length */
1611 if (!parts)
1612 printf("mtdparts variable not set, see 'help mtdparts'\n");
1613
1614 if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
1615 printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
1616 return 1;
1617 }
1618
1619 /* check if we have already parsed those mtdids */
1620 if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
1621 ids_changed = 0;
1622 } else {
1623 ids_changed = 1;
1624
1625 if (parse_mtdids(ids) != 0) {
Marian Balakowicz7d454772005-09-11 15:27:12 +02001626 devices_init();
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001627 return 1;
1628 }
1629
1630 /* ok it's good, save new ids */
1631 strncpy(last_ids, ids, MTDIDS_MAXLEN);
1632 }
1633
1634 /* parse partitions if either mtdparts or mtdids were updated */
1635 if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
1636 if (parse_mtdparts(parts) != 0)
1637 return 1;
1638
1639 if (list_empty(&devices)) {
1640 printf("mtdparts_init: no valid partitions\n");
1641 return 1;
1642 }
1643
1644 /* ok it's good, save new parts */
1645 strncpy(last_parts, parts, MTDPARTS_MAXLEN);
1646
1647 /* reset first partition from first dev from the list as current */
1648 current_dev = list_entry(devices.next, struct mtd_device, link);
1649 current_partnum = 0;
1650 current_save();
1651
1652 DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
1653 MTD_DEV_TYPE(current_dev->id->type),
1654 current_dev->id->num, current_partnum);
1655 }
1656
1657 /* mtdparts variable was reset to NULL, delete all devices/partitions */
1658 if (!parts && (last_parts[0] != '\0'))
1659 return devices_init();
1660
1661 /* do not process current partition if mtdparts variable is null */
1662 if (!parts)
1663 return 0;
1664
1665 /* is current partition set in environment? if so, use it */
1666 if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
1667 struct part_info *p;
1668 struct mtd_device *cdev;
1669 u8 pnum;
1670
1671 DEBUGF("--- getting current partition: %s\n", tmp_ep);
1672
1673 if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
1674 current_dev = cdev;
1675 current_partnum = pnum;
1676 current_save();
1677 }
1678 } else if (getenv("partition") == NULL) {
1679 DEBUGF("no partition variable set, setting...\n");
1680 current_save();
1681 }
1682
1683 return 0;
1684}
1685#else /* #ifdef CONFIG_JFFS2_CMDLINE */
1686/*
1687 * 'Static' version of command line mtdparts_init() routine. Single partition on
1688 * a single device configuration.
1689 */
1690
1691/**
1692 * Parse and initialize global mtdids mapping and create global
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001693 * device/partition list.
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001694 *
1695 * @return 0 on success, 1 otherwise
1696 */
1697int mtdparts_init(void)
1698{
1699 static int initialized = 0;
1700 u32 size;
1701 char *dev_name;
1702
1703 DEBUGF("\n---mtdparts_init---\n");
1704 if (!initialized) {
Wolfgang Denkc4e0e682005-08-09 21:41:20 +02001705 struct mtdids *id;
1706 struct part_info *part;
1707
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001708 initialized = 1;
1709 current_dev = (struct mtd_device *)
1710 malloc(sizeof(struct mtd_device) +
1711 sizeof(struct part_info) +
1712 sizeof(struct mtdids));
1713 if (!current_dev) {
1714 printf("out of memory\n");
1715 return 1;
1716 }
1717 memset(current_dev, 0, sizeof(struct mtd_device) +
1718 sizeof(struct part_info) + sizeof(struct mtdids));
1719
Wolfgang Denkc4e0e682005-08-09 21:41:20 +02001720 id = (struct mtdids *)(current_dev + 1);
1721 part = (struct part_info *)(id + 1);
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001722
1723 /* id */
1724 id->mtd_id = "single part";
1725
1726#if defined(CONFIG_JFFS2_DEV)
1727 dev_name = CONFIG_JFFS2_DEV;
1728#else
1729 dev_name = "nor0";
1730#endif
1731
1732 if ((id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
1733 (device_validate(id->type, id->num, &size) != 0)) {
1734 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
1735 free(current_dev);
1736 return 1;
1737 }
1738 id->size = size;
1739 INIT_LIST_HEAD(&id->link);
1740
1741 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
1742 id->type, id->num, id->size, id->mtd_id);
1743
1744 /* partition */
1745 part->name = "static";
1746 part->auto_name = 0;
1747
1748#if defined(CONFIG_JFFS2_PART_SIZE)
1749 part->size = CONFIG_JFFS2_PART_SIZE;
1750#else
1751 part->size = SIZE_REMAINING;
1752#endif
1753
1754#if defined(CONFIG_JFFS2_PART_OFFSET)
1755 part->offset = CONFIG_JFFS2_PART_OFFSET;
1756#else
1757 part->offset = 0x00000000;
1758#endif
1759
1760 part->dev = current_dev;
1761 INIT_LIST_HEAD(&part->link);
1762
1763 /* recalculate size if needed */
1764 if (part->size == SIZE_REMAINING)
1765 part->size = id->size - part->offset;
1766
1767 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
1768 part->name, part->size, part->offset);
1769
1770 /* device */
1771 current_dev->id = id;
1772 INIT_LIST_HEAD(&current_dev->link);
1773 current_dev->num_parts = 1;
1774 INIT_LIST_HEAD(&current_dev->parts);
1775 list_add(&part->link, &current_dev->parts);
1776 }
1777
1778 return 0;
1779}
1780#endif /* #ifdef CONFIG_JFFS2_CMDLINE */
1781
1782/**
1783 * Return pointer to the partition of a requested number from a requested
1784 * device.
1785 *
1786 * @param dev device that is to be searched for a partition
1787 * @param part_num requested partition number
1788 * @return pointer to the part_info, NULL otherwise
1789 */
1790static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
1791{
1792 struct list_head *entry;
1793 struct part_info *part;
1794 int num;
1795
1796 if (!dev)
1797 return NULL;
1798
1799 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
1800 part_num, MTD_DEV_TYPE(dev->id->type),
1801 dev->id->num, dev->id->mtd_id);
1802
1803 if (part_num >= dev->num_parts) {
1804 printf("invalid partition number %d for device %s%d (%s)\n",
1805 part_num, MTD_DEV_TYPE(dev->id->type),
1806 dev->id->num, dev->id->mtd_id);
1807 return NULL;
1808 }
1809
1810 /* locate partition number, return it */
1811 num = 0;
1812 list_for_each(entry, &dev->parts) {
1813 part = list_entry(entry, struct part_info, link);
1814
1815 if (part_num == num++) {
1816 return part;
1817 }
1818 }
1819
1820 return NULL;
1821}
1822
1823/***************************************************/
1824/* U-boot commands */
1825/***************************************************/
1826
1827/**
1828 * Routine implementing fsload u-boot command. This routine tries to load
1829 * a requested file from jffs2/cramfs filesystem on a current partition.
1830 *
1831 * @param cmdtp command internal data
1832 * @param flag command flag
1833 * @param argc number of arguments supplied to the command
1834 * @param argv arguments list
1835 * @return 0 on success, 1 otherwise
1836 */
1837int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
1838{
wdenk39539882004-07-01 16:30:44 +00001839 char *fsname;
wdenkf39748a2004-06-09 13:37:52 +00001840 char *filename;
wdenk39539882004-07-01 16:30:44 +00001841 int size;
1842 struct part_info *part;
1843 ulong offset = load_addr;
wdenkf39748a2004-06-09 13:37:52 +00001844
1845 /* pre-set Boot file name */
1846 if ((filename = getenv("bootfile")) == NULL) {
1847 filename = "uImage";
1848 }
1849
wdenkc6097192002-11-03 00:24:07 +00001850 if (argc == 2) {
1851 filename = argv[1];
1852 }
1853 if (argc == 3) {
1854 offset = simple_strtoul(argv[1], NULL, 16);
wdenk4b9206e2004-03-23 22:14:11 +00001855 load_addr = offset;
wdenkc6097192002-11-03 00:24:07 +00001856 filename = argv[2];
1857 }
1858
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001859 /* make sure we are in sync with env variables */
1860 if (mtdparts_init() !=0)
1861 return 1;
1862
1863 if ((part = jffs2_part_info(current_dev, current_partnum))){
wdenkc6097192002-11-03 00:24:07 +00001864
wdenkdd875c72004-01-03 21:24:46 +00001865 /* check partition type for cramfs */
1866 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1867 printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
1868
1869 if (cramfs_check(part)) {
1870 size = cramfs_load ((char *) offset, part, filename);
1871 } else {
1872 /* if this is not cramfs assume jffs2 */
1873 size = jffs2_1pass_load((char *)offset, part, filename);
1874 }
wdenkc6097192002-11-03 00:24:07 +00001875
1876 if (size > 0) {
1877 char buf[10];
wdenkdd875c72004-01-03 21:24:46 +00001878 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
1879 fsname, size, offset);
wdenkc6097192002-11-03 00:24:07 +00001880 sprintf(buf, "%x", size);
1881 setenv("filesize", buf);
1882 } else {
wdenkdd875c72004-01-03 21:24:46 +00001883 printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
wdenkc6097192002-11-03 00:24:07 +00001884 }
1885
1886 return !(size > 0);
1887 }
Wolfgang Denk87b8bd52005-08-16 09:32:45 +02001888 return 1;
wdenkc6097192002-11-03 00:24:07 +00001889}
1890
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001891/**
1892 * Routine implementing u-boot ls command which lists content of a given
1893 * directory on a current partition.
1894 *
1895 * @param cmdtp command internal data
1896 * @param flag command flag
1897 * @param argc number of arguments supplied to the command
1898 * @param argv arguments list
1899 * @return 0 on success, 1 otherwise
1900 */
1901int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
wdenkc6097192002-11-03 00:24:07 +00001902{
wdenka87589d2005-06-10 10:00:19 +00001903 char *filename = "/";
wdenkc6097192002-11-03 00:24:07 +00001904 int ret;
1905 struct part_info *part;
1906
1907 if (argc == 2)
1908 filename = argv[1];
1909
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001910 /* make sure we are in sync with env variables */
1911 if (mtdparts_init() !=0)
1912 return 1;
1913
1914 if ((part = jffs2_part_info(current_dev, current_partnum))){
wdenkc6097192002-11-03 00:24:07 +00001915
wdenkdd875c72004-01-03 21:24:46 +00001916 /* check partition type for cramfs */
1917 if (cramfs_check(part)) {
1918 ret = cramfs_ls (part, filename);
1919 } else {
1920 /* if this is not cramfs assume jffs2 */
1921 ret = jffs2_1pass_ls(part, filename);
1922 }
wdenkc6097192002-11-03 00:24:07 +00001923
Wolfgang Denk87b8bd52005-08-16 09:32:45 +02001924 return ret ? 0 : 1;
wdenkc6097192002-11-03 00:24:07 +00001925 }
Wolfgang Denk87b8bd52005-08-16 09:32:45 +02001926 return 1;
wdenkc6097192002-11-03 00:24:07 +00001927}
1928
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001929/**
1930 * Routine implementing u-boot fsinfo command. This routine prints out
1931 * miscellaneous filesystem informations/statistics.
1932 *
1933 * @param cmdtp command internal data
1934 * @param flag command flag
1935 * @param argc number of arguments supplied to the command
1936 * @param argv arguments list
1937 * @return 0 on success, 1 otherwise
1938 */
1939int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
wdenkc6097192002-11-03 00:24:07 +00001940{
wdenkc6097192002-11-03 00:24:07 +00001941 struct part_info *part;
wdenkdd875c72004-01-03 21:24:46 +00001942 char *fsname;
1943 int ret;
wdenkc6097192002-11-03 00:24:07 +00001944
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001945 /* make sure we are in sync with env variables */
1946 if (mtdparts_init() !=0)
1947 return 1;
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02001948
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001949 if ((part = jffs2_part_info(current_dev, current_partnum))){
wdenkc6097192002-11-03 00:24:07 +00001950
wdenkdd875c72004-01-03 21:24:46 +00001951 /* check partition type for cramfs */
1952 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
1953 printf("### filesystem type is %s\n", fsname);
1954
1955 if (cramfs_check(part)) {
1956 ret = cramfs_info (part);
1957 } else {
1958 /* if this is not cramfs assume jffs2 */
1959 ret = jffs2_1pass_info(part);
1960 }
wdenkc6097192002-11-03 00:24:07 +00001961
Wolfgang Denk87b8bd52005-08-16 09:32:45 +02001962 return ret ? 0 : 1;
wdenkc6097192002-11-03 00:24:07 +00001963 }
Wolfgang Denk87b8bd52005-08-16 09:32:45 +02001964 return 1;
wdenkc6097192002-11-03 00:24:07 +00001965}
1966
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001967/* command line only */
1968#ifdef CONFIG_JFFS2_CMDLINE
1969/**
1970 * Routine implementing u-boot chpart command. Sets new current partition based
1971 * on the user supplied partition id. For partition id format see find_dev_and_part().
1972 *
1973 * @param cmdtp command internal data
1974 * @param flag command flag
1975 * @param argc number of arguments supplied to the command
1976 * @param argv arguments list
1977 * @return 0 on success, 1 otherwise
1978 */
1979int do_jffs2_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
wdenkc6097192002-11-03 00:24:07 +00001980{
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001981/* command line only */
1982 struct mtd_device *dev;
1983 struct part_info *part;
1984 u8 pnum;
wdenkc6097192002-11-03 00:24:07 +00001985
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001986 if (mtdparts_init() !=0)
1987 return 1;
wdenkc6097192002-11-03 00:24:07 +00001988
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001989 if (argc < 2) {
1990 printf("no partition id specified\n");
1991 return 1;
wdenkc6097192002-11-03 00:24:07 +00001992 }
1993
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001994 if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
1995 return 1;
wdenkc6097192002-11-03 00:24:07 +00001996
Wolfgang Denk700a0c62005-08-08 01:03:24 +02001997 current_dev = dev;
1998 current_partnum = pnum;
1999 current_save();
2000
2001 printf("partition changed to %s%d,%d\n",
2002 MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
2003
wdenkc6097192002-11-03 00:24:07 +00002004 return 0;
wdenkc6097192002-11-03 00:24:07 +00002005}
wdenkeedcd072004-09-08 22:03:11 +00002006
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002007/**
2008 * Routine implementing u-boot mtdparts command. Initialize/update default global
2009 * partition list and process user partition request (list, add, del).
2010 *
2011 * @param cmdtp command internal data
2012 * @param flag command flag
2013 * @param argc number of arguments supplied to the command
2014 * @param argv arguments list
2015 * @return 0 on success, 1 otherwise
2016 */
2017int do_jffs2_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
2018{
2019 if (argc == 2) {
2020 if (strcmp(argv[1], "default") == 0) {
2021 setenv("mtdids", (char *)mtdids_default);
2022 setenv("mtdparts", (char *)mtdparts_default);
2023 setenv("partition", NULL);
2024
2025 mtdparts_init();
2026 return 0;
2027 } else if (strcmp(argv[1], "delall") == 0) {
2028 /* this may be the first run, initialize lists if needed */
2029 mtdparts_init();
2030
2031 setenv("mtdparts", NULL);
2032
2033 /* devices_init() calls current_save() */
2034 return devices_init();
2035 }
2036 }
2037
2038 /* make sure we are in sync with env variables */
2039 if (mtdparts_init() != 0)
2040 return 1;
2041
2042 if (argc == 1) {
2043 list_partitions();
2044 return 0;
2045 }
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02002046
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002047 /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
2048 if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
2049#define PART_ADD_DESC_MAXLEN 64
2050 char tmpbuf[PART_ADD_DESC_MAXLEN];
2051 u8 type, num, len;
2052 struct mtd_device *dev;
2053 struct mtd_device *dev_tmp;
2054 struct mtdids *id;
2055 struct part_info *p;
2056
2057 if (id_parse(argv[2], NULL, &type, &num) != 0)
2058 return 1;
2059
2060 if ((id = id_find(type, num)) == NULL) {
2061 printf("no such device %s defined in mtdids variable\n", argv[2]);
2062 return 1;
2063 }
2064
2065 len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
2066 len += strlen(argv[3]); /* size@offset */
2067 len += strlen(argv[4]) + 2; /* '(' name ')' */
2068 if (argv[5] && (strlen(argv[5]) == 2))
2069 len += 2; /* 'ro' */
2070
2071 if (len >= PART_ADD_DESC_MAXLEN) {
2072 printf("too long partition description\n");
2073 return 1;
2074 }
2075 sprintf(tmpbuf, "%s:%s(%s)%s",
Wolfgang Denk8f79e4c2005-08-10 15:14:32 +02002076 id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002077 DEBUGF("add tmpbuf: %s\n", tmpbuf);
2078
2079 if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
2080 return 1;
2081
2082 DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
2083 dev->id->num, dev->id->mtd_id);
2084
2085 if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
2086 device_add(dev);
2087 } else {
2088 /* merge new partition with existing ones*/
2089 p = list_entry(dev->parts.next, struct part_info, link);
2090 if (part_add(dev_tmp, p) != 0) {
2091 device_del(dev);
2092 return 1;
2093 }
2094 }
2095
2096 if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
2097 printf("generated mtdparts too long, reseting to null\n");
2098 return 1;
2099 }
2100
2101 return 0;
2102 }
2103
2104 /* mtdparts del part-id */
2105 if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
2106 DEBUGF("del: part-id = %s\n", argv[2]);
2107
2108 return delete_partition(argv[2]);
2109 }
2110
2111 printf ("Usage:\n%s\n", cmdtp->usage);
2112 return 1;
2113}
2114#endif /* #ifdef CONFIG_JFFS2_CMDLINE */
wdenk8bde7f72003-06-27 21:31:46 +00002115
2116/***************************************************/
wdenk0d498392003-07-01 21:06:45 +00002117U_BOOT_CMD(
2118 fsload, 3, 0, do_jffs2_fsload,
wdenkaa5590b2004-06-09 12:42:26 +00002119 "fsload\t- load binary file from a filesystem image\n",
wdenk8bde7f72003-06-27 21:31:46 +00002120 "[ off ] [ filename ]\n"
2121 " - load binary file from flash bank\n"
2122 " with offset 'off'\n"
2123);
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002124U_BOOT_CMD(
2125 ls, 2, 1, do_jffs2_ls,
2126 "ls\t- list files in a directory (default /)\n",
2127 "[ directory ]\n"
2128 " - list files in a directory.\n"
2129);
wdenk8bde7f72003-06-27 21:31:46 +00002130
wdenk0d498392003-07-01 21:06:45 +00002131U_BOOT_CMD(
2132 fsinfo, 1, 1, do_jffs2_fsinfo,
wdenkaa5590b2004-06-09 12:42:26 +00002133 "fsinfo\t- print information about filesystems\n",
wdenk8bde7f72003-06-27 21:31:46 +00002134 " - print information about filesystems\n"
2135);
2136
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002137#ifdef CONFIG_JFFS2_CMDLINE
wdenk0d498392003-07-01 21:06:45 +00002138U_BOOT_CMD(
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002139 chpart, 2, 0, do_jffs2_chpart,
2140 "chpart\t- change active partition\n",
2141 "part-id\n"
2142 " - change active partition (e.g. part-id = nand0,1)\n"
wdenk8bde7f72003-06-27 21:31:46 +00002143);
2144
Wolfgang Denk700a0c62005-08-08 01:03:24 +02002145U_BOOT_CMD(
2146 mtdparts, 6, 0, do_jffs2_mtdparts,
2147 "mtdparts- define flash/nand partitions\n",
2148 "\n"
2149 " - list partition table\n"
2150 "mtdparts delall\n"
2151 " - delete all partitions\n"
2152 "mtdparts del part-id\n"
2153 " - delete partition (e.g. part-id = nand0,1)\n"
2154 "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
2155 " - add partition\n"
2156 "mtdparts default\n"
2157 " - reset partition table to defaults\n\n"
2158 "-----\n\n"
2159 "this command uses three environment variables:\n\n"
2160 "'partition' - keeps current partition identifier\n\n"
2161 "partition := <part-id>\n"
2162 "<part-id> := <dev-id>,part_num\n\n"
2163 "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
2164 "mtdids=<idmap>[,<idmap>,...]\n\n"
2165 "<idmap> := <dev-id>=<mtd-id>\n"
2166 "<dev-id> := 'nand'|'nor'<dev-num>\n"
2167 "<dev-num> := mtd device number, 0...\n"
2168 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
2169 "'mtdparts' - partition list\n\n"
2170 "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
2171 "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
2172 "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
2173 "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
2174 "<size> := standard linux memsize OR '-' to denote all remaining space\n"
2175 "<offset> := partition start offset within the device\n"
2176 "<name> := '(' NAME ')'\n"
2177 "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
2178);
2179#endif /* #ifdef CONFIG_JFFS2_CMDLINE */
2180
2181/***************************************************/
2182
wdenkc6097192002-11-03 00:24:07 +00002183#endif /* CFG_CMD_JFFS2 */