9  * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
18  *   $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
19  *   Copyright 2002 SYSGO Real-Time Solutions GmbH
21  * SPDX-License-Identifier:	GPL-2.0+
27  * 'partition' - keeps current partition identifier
29  * partition  := <part-id>
30  * <part-id>  := <dev-id>,part_num
33  * 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
37  * <idmap>    := <dev-id>=<mtd-id>
38  * <dev-id>   := 'nand'|'nor'|'onenand'<dev-num>
39  * <dev-num>  := mtd device number, 0...
40  * <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
43  * 'mtdparts' - partition list
45  * mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
47  * <mtd-def>  := <mtd-id>:<part-def>[,<part-def>...]
48  * <mtd-id>   := unique device tag used by linux kernel to find mtd device (mtd->name)
49  * <part-def> := <size>[@<offset>][<name>][<ro-flag>]
50  * <size>     := standard linux memsize OR '-' to denote all remaining space
53  * <ro-flag>  := when set to 'ro' makes partition read-only (not used, passed to kernel)
56  * - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
57  * - if the above variables are not set defaults for a given target are used
62  * mtdids=nor0=edb7312-nor
63  * mtdparts=mtdparts=edb7312-nor:-
66  * mtdids=nor0=edb7312-nor,nand0=edb7312-nand
67  * mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
116  * field for read-only partitions */
139 #define cramfs_load(x,y,z)	(-1)
163 				MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_FLASH_BANKS - 1);  in mtd_device_validate()
167 			*size = mtd->size;  in mtd_device_validate()
177 			*size = mtd->size;  in mtd_device_validate()
182 				MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_NAND_DEVICE - 1);  in mtd_device_validate()
200  * Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
203  * @param id string describing device id
209 static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)  in mtd_id_parse()  argument
211 	const char *p = id;  in mtd_id_parse()
224 		printf("incorrect device type in %s\n", id);  in mtd_id_parse()
229 		printf("incorrect device number in %s\n", id);  in mtd_id_parse()
249 static inline u32 get_part_sector_size_nand(struct mtdids *id)  in get_part_sector_size_nand()  argument
254 	mtd = get_nand_dev_by_index(id->num);  in get_part_sector_size_nand()
256 	return mtd->erasesize;  in get_part_sector_size_nand()
263 static inline u32 get_part_sector_size_nor(struct mtdids *id, struct part_info *part)  in get_part_sector_size_nor()  argument
272 	flash = &flash_info[id->num];  in get_part_sector_size_nor()
274 	start_phys = flash->start[0] + part->offset;  in get_part_sector_size_nor()
275 	end_phys = start_phys + part->size - 1;  in get_part_sector_size_nor()
277 	for (i = 0; i < flash->sector_count; i++) {  in get_part_sector_size_nor()
278 		if (flash->start[i] >= end_phys)  in get_part_sector_size_nor()
281 		if (flash->start[i] >= start_phys) {  in get_part_sector_size_nor()
282 			if (i == flash->sector_count - 1) {  in get_part_sector_size_nor()
283 				size = flash->start[0] + flash->size - flash->start[i];  in get_part_sector_size_nor()
285 				size = flash->start[i+1] - flash->start[i];  in get_part_sector_size_nor()
299 	return mtd->erasesize;  in get_part_sector_size_nor()
310 	return mtd->erasesize;  in get_part_sector_size_onenand()
317 static inline u32 get_part_sector_size(struct mtdids *id, struct part_info *part)  in get_part_sector_size()  argument
319 	if (id->type == MTD_DEV_TYPE_NAND)  in get_part_sector_size()
320 		return get_part_sector_size_nand(id);  in get_part_sector_size()
321 	else if (id->type == MTD_DEV_TYPE_NOR)  in get_part_sector_size()
322 		return get_part_sector_size_nor(id, part);  in get_part_sector_size()
323 	else if (id->type == MTD_DEV_TYPE_ONENAND)  in get_part_sector_size()
346 	DEBUGF("\n---mtdparts_init---\n");  in mtdparts_init()
348 		struct mtdids *id;  in mtdparts_init()  local
363 		id = (struct mtdids *)(current_mtd_dev + 1);  in mtdparts_init()
364 		part = (struct part_info *)(id + 1);  in mtdparts_init()
366 		/* id */  in mtdparts_init()
367 		id->mtd_id = "single part";  in mtdparts_init()
375 		if ((mtd_id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||  in mtdparts_init()
376 				(mtd_device_validate(id->type, id->num, &size) != 0)) {  in mtdparts_init()
377 			printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);  in mtdparts_init()
381 		id->size = size;  in mtdparts_init()
382 		INIT_LIST_HEAD(&id->link);  in mtdparts_init()
384 		DEBUGF("dev id: type = %d, num = %d, size = 0x%08llx, mtd_id = %s\n",  in mtdparts_init()
385 				id->type, id->num, id->size, id->mtd_id);  in mtdparts_init()
388 		part->name = "static";  in mtdparts_init()
389 		part->auto_name = 0;  in mtdparts_init()
392 		part->size = CONFIG_JFFS2_PART_SIZE;  in mtdparts_init()
394 		part->size = SIZE_REMAINING;  in mtdparts_init()
398 		part->offset = CONFIG_JFFS2_PART_OFFSET;  in mtdparts_init()
400 		part->offset = 0x00000000;  in mtdparts_init()
403 		part->dev = current_mtd_dev;  in mtdparts_init()
404 		INIT_LIST_HEAD(&part->link);  in mtdparts_init()
407 		if (part->size == SIZE_REMAINING)  in mtdparts_init()
408 			part->size = id->size - part->offset;  in mtdparts_init()
410 		part->sector_size = get_part_sector_size(id, part);  in mtdparts_init()
413 				part->name, part->size, part->offset);  in mtdparts_init()
416 		current_mtd_dev->id = id;  in mtdparts_init()
417 		INIT_LIST_HEAD(&current_mtd_dev->link);  in mtdparts_init()
418 		current_mtd_dev->num_parts = 1;  in mtdparts_init()
419 		INIT_LIST_HEAD(&current_mtd_dev->parts);  in mtdparts_init()
420 		list_add(&part->link, &current_mtd_dev->parts);  in mtdparts_init()
444 	DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",  in jffs2_part_info()
445 			part_num, MTD_DEV_TYPE(dev->id->type),  in jffs2_part_info()
446 			dev->id->num, dev->id->mtd_id);  in jffs2_part_info()
448 	if (part_num >= dev->num_parts) {  in jffs2_part_info()
450 				part_num, MTD_DEV_TYPE(dev->id->type),  in jffs2_part_info()
451 				dev->id->num, dev->id->mtd_id);  in jffs2_part_info()
457 	list_for_each(entry, &dev->parts) {  in jffs2_part_info()
469 /* U-Boot commands				   */
473  * Routine implementing fsload u-boot command. This routine tries to load
490 	/* pre-set Boot file name */  in do_jffs2_fsload()
535  * Routine implementing u-boot ls command which lists content of a given
573  * Routine implementing u-boot fsinfo command. This routine prints out
615 	"    - load binary file from flash bank\n"