1 // SPDX-License-Identifier: GPL-2.0+
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7 * Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
10 * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
13 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
15 * Added support for reading flash partition table from environment.
16 * Parsing routines are based on driver/mtd/cmdline.c from the linux 2.4
19 * $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
20 * Copyright 2002 SYSGO Real-Time Solutions GmbH
24 * Three environment variables are used by the parsing routines:
26 * 'partition' - keeps current partition identifier
28 * partition := <part-id>
29 * <part-id> := <dev-id>,part_num
32 * 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
34 * mtdids=<idmap>[,<idmap>,...]
36 * <idmap> := <dev-id>=<mtd-id>
37 * <dev-id> := 'nand'|'nor'|'onenand'<dev-num>
38 * <dev-num> := mtd device number, 0...
39 * <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
42 * 'mtdparts' - partition list
44 * mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
46 * <mtd-def> := <mtd-id>:<part-def>[,<part-def>...]
47 * <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
48 * <part-def> := <size>[@<offset>][<name>][<ro-flag>]
49 * <size> := standard linux memsize OR '-' to denote all remaining space
50 * <offset> := partition start offset within the device
51 * <name> := '(' NAME ')'
52 * <ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)
55 * - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
56 * - if the above variables are not set defaults for a given target are used
60 * 1 NOR Flash, with 1 single writable partition:
61 * mtdids=nor0=edb7312-nor
62 * mtdparts=mtdparts=edb7312-nor:-
64 * 1 NOR Flash with 2 partitions, 1 NAND with one
65 * mtdids=nor0=edb7312-nor,nand0=edb7312-nand
66 * mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
71 * JFFS2/CRAMFS support
79 #include <jffs2/jffs2.h>
80 #include <linux/bug.h>
81 #include <linux/list.h>
82 #include <linux/ctype.h>
83 #include <cramfs/cramfs_fs.h>
85 #if defined(CONFIG_CMD_NAND)
86 #include <linux/mtd/rawnand.h>
90 #if defined(CONFIG_CMD_ONENAND)
91 #include <linux/mtd/mtd.h>
92 #include <linux/mtd/onenand.h>
93 #include <onenand_uboot.h>
96 /* enable/disable debugging messages */
101 # define DEBUGF(fmt, args...) printf(fmt ,##args)
103 # define DEBUGF(fmt, args...)
106 /* special size referring to all the remaining space in a partition */
107 #define SIZE_REMAINING 0xFFFFFFFF
109 /* special offset value, it is used when not provided by user
111 * this value is used temporarily during parsing, later such offests
112 * are recalculated */
113 #define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
115 /* minimum partition size */
116 #define MIN_PART_SIZE 4096
118 /* this flag needs to be set in part_info struct mask_flags
119 * field for read-only partitions */
120 #define MTD_WRITEABLE_CMD 1
122 /* current active device and partition number */
123 #ifdef CONFIG_CMD_MTDPARTS
124 /* Use the ones declared in cmd_mtdparts.c */
125 extern struct mtd_device *current_mtd_dev;
126 extern u8 current_mtd_partnum;
129 struct mtd_device *current_mtd_dev = NULL;
130 u8 current_mtd_partnum = 0;
133 #if defined(CONFIG_CMD_CRAMFS)
134 extern int cramfs_check (struct part_info *info);
135 extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
136 extern int cramfs_ls (struct part_info *info, char *filename);
137 extern int cramfs_info (struct part_info *info);
139 /* defining empty macros for function names is ugly but avoids ifdef clutter
140 * all over the code */
141 #define cramfs_check(x) (0)
142 #define cramfs_load(x,y,z) (-1)
143 #define cramfs_ls(x,y) (0)
144 #define cramfs_info(x) (0)
147 #ifndef CONFIG_CMD_MTDPARTS
149 * Check device number to be within valid range for given device type.
151 * @param dev device to validate
152 * Return: 0 if device is valid, 1 otherwise
154 static int mtd_device_validate(u8 type, u8 num, u32 *size)
156 if (type == MTD_DEV_TYPE_NOR) {
157 #if defined(CONFIG_CMD_FLASH)
158 if (num < CONFIG_SYS_MAX_FLASH_BANKS) {
159 extern flash_info_t flash_info[];
160 *size = flash_info[num].size;
165 printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
166 MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_FLASH_BANKS - 1);
168 printf("support for FLASH devices not present\n");
170 } else if (type == MTD_DEV_TYPE_NAND) {
171 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
172 struct mtd_info *mtd = get_nand_dev_by_index(num);
178 printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
179 MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_NAND_DEVICE - 1);
181 printf("support for NAND devices not present\n");
183 } else if (type == MTD_DEV_TYPE_ONENAND) {
184 #if defined(CONFIG_CMD_ONENAND)
185 *size = onenand_mtd.size;
188 printf("support for OneNAND devices not present\n");
191 printf("Unknown defice type %d\n", type);
197 * Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
198 * return device type and number.
200 * @param id string describing device id
201 * @param ret_id output pointer to next char after parse completes (output)
202 * @param dev_type parsed device type (output)
203 * @param dev_num parsed device number (output)
204 * Return: 0 on success, 1 otherwise
206 static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
211 if (strncmp(p, "nand", 4) == 0) {
212 *dev_type = MTD_DEV_TYPE_NAND;
214 } else if (strncmp(p, "nor", 3) == 0) {
215 *dev_type = MTD_DEV_TYPE_NOR;
217 } else if (strncmp(p, "onenand", 7) == 0) {
218 *dev_type = MTD_DEV_TYPE_ONENAND;
221 printf("incorrect device type in %s\n", id);
226 printf("incorrect device number in %s\n", id);
230 *dev_num = simple_strtoul(p, (char **)&p, 0);
237 * 'Static' version of command line mtdparts_init() routine. Single partition on
238 * a single device configuration.
242 * Calculate sector size.
244 * Return: sector size
246 static inline u32 get_part_sector_size_nand(struct mtdids *id)
248 #if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
249 struct mtd_info *mtd;
251 mtd = get_nand_dev_by_index(id->num);
253 return mtd->erasesize;
260 static inline u32 get_part_sector_size_nor(struct mtdids *id, struct part_info *part)
262 #if defined(CONFIG_CMD_FLASH)
263 extern flash_info_t flash_info[];
265 u32 end_phys, start_phys, sector_size = 0, size = 0;
269 flash = &flash_info[id->num];
271 start_phys = flash->start[0] + part->offset;
272 end_phys = start_phys + part->size - 1;
274 for (i = 0; i < flash->sector_count; i++) {
275 if (flash->start[i] >= end_phys)
278 if (flash->start[i] >= start_phys) {
279 if (i == flash->sector_count - 1) {
280 size = flash->start[0] + flash->size - flash->start[i];
282 size = flash->start[i+1] - flash->start[i];
285 if (sector_size < size)
297 static inline u32 get_part_sector_size_onenand(void)
299 #if defined(CONFIG_CMD_ONENAND)
300 struct mtd_info *mtd;
304 return mtd->erasesize;
311 static inline u32 get_part_sector_size(struct mtdids *id, struct part_info *part)
313 if (id->type == MTD_DEV_TYPE_NAND)
314 return get_part_sector_size_nand(id);
315 else if (id->type == MTD_DEV_TYPE_NOR)
316 return get_part_sector_size_nor(id, part);
317 else if (id->type == MTD_DEV_TYPE_ONENAND)
318 return get_part_sector_size_onenand();
320 DEBUGF("Error: Unknown device type.\n");
326 * Parse and initialize global mtdids mapping and create global
327 * device/partition list.
329 * 'Static' version of command line mtdparts_init() routine. Single partition on
330 * a single device configuration.
332 * Return: 0 on success, 1 otherwise
334 int mtdparts_init(void)
336 static int initialized = 0;
340 DEBUGF("\n---mtdparts_init---\n");
343 struct part_info *part;
346 current_mtd_dev = (struct mtd_device *)
347 malloc(sizeof(struct mtd_device) +
348 sizeof(struct part_info) +
349 sizeof(struct mtdids));
350 if (!current_mtd_dev) {
351 printf("out of memory\n");
354 memset(current_mtd_dev, 0, sizeof(struct mtd_device) +
355 sizeof(struct part_info) + sizeof(struct mtdids));
357 id = (struct mtdids *)(current_mtd_dev + 1);
358 part = (struct part_info *)(id + 1);
361 id->mtd_id = "single part";
363 dev_name = CONFIG_JFFS2_DEV;
365 if ((mtd_id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
366 (mtd_device_validate(id->type, id->num, &size) != 0)) {
367 printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
368 free(current_mtd_dev);
372 INIT_LIST_HEAD(&id->link);
374 DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
375 id->type, id->num, id->size, id->mtd_id);
378 part->name = "static";
381 part->size = CONFIG_JFFS2_PART_SIZE;
383 part->offset = CONFIG_JFFS2_PART_OFFSET;
385 part->dev = current_mtd_dev;
386 INIT_LIST_HEAD(&part->link);
388 /* recalculate size if needed */
389 if (part->size == SIZE_REMAINING)
390 part->size = id->size - part->offset;
392 part->sector_size = get_part_sector_size(id, part);
394 DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
395 part->name, part->size, part->offset);
398 current_mtd_dev->id = id;
399 INIT_LIST_HEAD(¤t_mtd_dev->link);
400 current_mtd_dev->num_parts = 1;
401 INIT_LIST_HEAD(¤t_mtd_dev->parts);
402 list_add(&part->link, ¤t_mtd_dev->parts);
407 #endif /* #ifndef CONFIG_CMD_MTDPARTS */
410 * Return pointer to the partition of a requested number from a requested
413 * @param dev device that is to be searched for a partition
414 * @param part_num requested partition number
415 * Return: pointer to the part_info, NULL otherwise
417 static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
419 struct list_head *entry;
420 struct part_info *part;
426 DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
427 part_num, MTD_DEV_TYPE(dev->id->type),
428 dev->id->num, dev->id->mtd_id);
430 if (part_num >= dev->num_parts) {
431 printf("invalid partition number %d for device %s%d (%s)\n",
432 part_num, MTD_DEV_TYPE(dev->id->type),
433 dev->id->num, dev->id->mtd_id);
437 /* locate partition number, return it */
439 list_for_each(entry, &dev->parts) {
440 part = list_entry(entry, struct part_info, link);
442 if (part_num == num++) {
450 /***************************************************/
451 /* U-Boot commands */
452 /***************************************************/
455 * Routine implementing fsload u-boot command. This routine tries to load
456 * a requested file from jffs2/cramfs filesystem on a current partition.
458 * @param cmdtp command internal data
459 * @param flag command flag
460 * @param argc number of arguments supplied to the command
461 * @param argv arguments list
462 * Return: 0 on success, 1 otherwise
464 int do_jffs2_fsload(struct cmd_tbl *cmdtp, int flag, int argc,
470 struct part_info *part;
471 ulong offset = image_load_addr;
473 /* pre-set Boot file name */
474 filename = env_get("bootfile");
482 offset = hextoul(argv[1], NULL);
483 image_load_addr = offset;
487 /* make sure we are in sync with env variables */
488 if (mtdparts_init() !=0)
491 if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
493 /* check partition type for cramfs */
494 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
495 printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
497 if (cramfs_check(part)) {
498 size = cramfs_load ((char *) offset, part, filename);
500 /* if this is not cramfs assume jffs2 */
501 size = jffs2_1pass_load((char *)offset, part, filename);
505 printf("### %s load complete: %d bytes loaded to 0x%lx\n",
506 fsname, size, offset);
507 env_set_hex("filesize", size);
509 printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
518 * Routine implementing u-boot ls command which lists content of a given
519 * directory on a current partition.
521 * @param cmdtp command internal data
522 * @param flag command flag
523 * @param argc number of arguments supplied to the command
524 * @param argv arguments list
525 * Return: 0 on success, 1 otherwise
527 int do_jffs2_ls(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
529 char *filename = "/";
531 struct part_info *part;
536 /* make sure we are in sync with env variables */
537 if (mtdparts_init() !=0)
540 if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
542 /* check partition type for cramfs */
543 if (cramfs_check(part)) {
544 ret = cramfs_ls (part, filename);
546 /* if this is not cramfs assume jffs2 */
547 ret = jffs2_1pass_ls(part, filename);
556 * Routine implementing u-boot fsinfo command. This routine prints out
557 * miscellaneous filesystem informations/statistics.
559 * @param cmdtp command internal data
560 * @param flag command flag
561 * @param argc number of arguments supplied to the command
562 * @param argv arguments list
563 * Return: 0 on success, 1 otherwise
565 int do_jffs2_fsinfo(struct cmd_tbl *cmdtp, int flag, int argc,
568 struct part_info *part;
572 /* make sure we are in sync with env variables */
573 if (mtdparts_init() !=0)
576 if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
578 /* check partition type for cramfs */
579 fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
580 printf("### filesystem type is %s\n", fsname);
582 if (cramfs_check(part)) {
583 ret = cramfs_info (part);
585 /* if this is not cramfs assume jffs2 */
586 ret = jffs2_1pass_info(part);
594 /***************************************************/
596 fsload, 3, 0, do_jffs2_fsload,
597 "load binary file from a filesystem image",
598 "[ off ] [ filename ]\n"
599 " - load binary file from flash bank\n"
603 fsls, 2, 1, do_jffs2_ls,
604 "list files in a directory (default /)",
609 fsinfo, 1, 1, do_jffs2_fsinfo,
610 "print information about filesystems",
613 /***************************************************/