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![Bin Meng](/assets/img/avatar_default.png)
Correct spelling of "U-Boot" shall be used in all written text (documentation, comments in source files etc.). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Minkyu Kang <mk7.kang@samsung.com>
620 lines
15 KiB
C
620 lines
15 KiB
C
/*
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* (C) Copyright 2002
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* (C) Copyright 2002
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* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
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*
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* (C) Copyright 2003
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* Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
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*
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* (C) Copyright 2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* Added support for reading flash partition table from environment.
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* Parsing routines are based on driver/mtd/cmdline.c from the linux 2.4
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* kernel tree.
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*
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* $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
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* Copyright 2002 SYSGO Real-Time Solutions GmbH
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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/*
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* Three environment variables are used by the parsing routines:
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*
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* 'partition' - keeps current partition identifier
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*
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* partition := <part-id>
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* <part-id> := <dev-id>,part_num
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*
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*
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* 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
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*
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* mtdids=<idmap>[,<idmap>,...]
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*
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* <idmap> := <dev-id>=<mtd-id>
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* <dev-id> := 'nand'|'nor'|'onenand'<dev-num>
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* <dev-num> := mtd device number, 0...
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* <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
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*
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*
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* 'mtdparts' - partition list
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*
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* mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
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*
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* <mtd-def> := <mtd-id>:<part-def>[,<part-def>...]
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* <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
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* <part-def> := <size>[@<offset>][<name>][<ro-flag>]
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* <size> := standard linux memsize OR '-' to denote all remaining space
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* <offset> := partition start offset within the device
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* <name> := '(' NAME ')'
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* <ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)
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*
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* Notes:
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* - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
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* - if the above variables are not set defaults for a given target are used
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*
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* Examples:
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*
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* 1 NOR Flash, with 1 single writable partition:
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* mtdids=nor0=edb7312-nor
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* mtdparts=mtdparts=edb7312-nor:-
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*
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* 1 NOR Flash with 2 partitions, 1 NAND with one
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* mtdids=nor0=edb7312-nor,nand0=edb7312-nand
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* mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
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*
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*/
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/*
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* JFFS2/CRAMFS support
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <jffs2/jffs2.h>
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#include <linux/list.h>
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#include <linux/ctype.h>
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#include <cramfs/cramfs_fs.h>
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#if defined(CONFIG_CMD_NAND)
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#include <linux/mtd/nand.h>
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#include <nand.h>
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#endif
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#if defined(CONFIG_CMD_ONENAND)
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/onenand.h>
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#include <onenand_uboot.h>
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#endif
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/* enable/disable debugging messages */
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#define DEBUG_JFFS
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#undef DEBUG_JFFS
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#ifdef DEBUG_JFFS
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# define DEBUGF(fmt, args...) printf(fmt ,##args)
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#else
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# define DEBUGF(fmt, args...)
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#endif
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/* special size referring to all the remaining space in a partition */
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#define SIZE_REMAINING 0xFFFFFFFF
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/* special offset value, it is used when not provided by user
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*
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* this value is used temporarily during parsing, later such offests
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* are recalculated */
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#define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
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/* minimum partition size */
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#define MIN_PART_SIZE 4096
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/* this flag needs to be set in part_info struct mask_flags
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* field for read-only partitions */
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#define MTD_WRITEABLE_CMD 1
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/* current active device and partition number */
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#ifdef CONFIG_CMD_MTDPARTS
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/* Use the ones declared in cmd_mtdparts.c */
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extern struct mtd_device *current_mtd_dev;
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extern u8 current_mtd_partnum;
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#else
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/* Use local ones */
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struct mtd_device *current_mtd_dev = NULL;
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u8 current_mtd_partnum = 0;
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#endif
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#if defined(CONFIG_CMD_CRAMFS)
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extern int cramfs_check (struct part_info *info);
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extern int cramfs_load (char *loadoffset, struct part_info *info, char *filename);
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extern int cramfs_ls (struct part_info *info, char *filename);
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extern int cramfs_info (struct part_info *info);
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#else
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/* defining empty macros for function names is ugly but avoids ifdef clutter
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* all over the code */
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#define cramfs_check(x) (0)
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#define cramfs_load(x,y,z) (-1)
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#define cramfs_ls(x,y) (0)
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#define cramfs_info(x) (0)
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#endif
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#ifndef CONFIG_CMD_MTDPARTS
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/**
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* Check device number to be within valid range for given device type.
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*
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* @param dev device to validate
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* @return 0 if device is valid, 1 otherwise
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*/
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static int mtd_device_validate(u8 type, u8 num, u32 *size)
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{
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if (type == MTD_DEV_TYPE_NOR) {
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#if defined(CONFIG_CMD_FLASH)
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if (num < CONFIG_SYS_MAX_FLASH_BANKS) {
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extern flash_info_t flash_info[];
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*size = flash_info[num].size;
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return 0;
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}
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printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
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MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_FLASH_BANKS - 1);
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#else
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printf("support for FLASH devices not present\n");
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#endif
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} else if (type == MTD_DEV_TYPE_NAND) {
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#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
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if (num < CONFIG_SYS_MAX_NAND_DEVICE) {
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*size = nand_info[num].size;
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return 0;
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}
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printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
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MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_NAND_DEVICE - 1);
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#else
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printf("support for NAND devices not present\n");
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#endif
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} else if (type == MTD_DEV_TYPE_ONENAND) {
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#if defined(CONFIG_CMD_ONENAND)
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*size = onenand_mtd.size;
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return 0;
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#else
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printf("support for OneNAND devices not present\n");
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#endif
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} else
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printf("Unknown defice type %d\n", type);
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return 1;
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}
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/**
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* Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
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* return device type and number.
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*
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* @param id string describing device id
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* @param ret_id output pointer to next char after parse completes (output)
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* @param dev_type parsed device type (output)
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* @param dev_num parsed device number (output)
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* @return 0 on success, 1 otherwise
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*/
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static int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
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{
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const char *p = id;
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*dev_type = 0;
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if (strncmp(p, "nand", 4) == 0) {
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*dev_type = MTD_DEV_TYPE_NAND;
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p += 4;
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} else if (strncmp(p, "nor", 3) == 0) {
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*dev_type = MTD_DEV_TYPE_NOR;
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p += 3;
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} else if (strncmp(p, "onenand", 7) == 0) {
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*dev_type = MTD_DEV_TYPE_ONENAND;
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p += 7;
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} else {
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printf("incorrect device type in %s\n", id);
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return 1;
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}
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if (!isdigit(*p)) {
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printf("incorrect device number in %s\n", id);
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return 1;
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}
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*dev_num = simple_strtoul(p, (char **)&p, 0);
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if (ret_id)
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*ret_id = p;
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return 0;
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}
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/*
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* 'Static' version of command line mtdparts_init() routine. Single partition on
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* a single device configuration.
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*/
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/**
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* Calculate sector size.
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*
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* @return sector size
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*/
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static inline u32 get_part_sector_size_nand(struct mtdids *id)
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{
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#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
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nand_info_t *nand;
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nand = &nand_info[id->num];
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return nand->erasesize;
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#else
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BUG();
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return 0;
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#endif
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}
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static inline u32 get_part_sector_size_nor(struct mtdids *id, struct part_info *part)
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{
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#if defined(CONFIG_CMD_FLASH)
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extern flash_info_t flash_info[];
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u32 end_phys, start_phys, sector_size = 0, size = 0;
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int i;
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flash_info_t *flash;
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flash = &flash_info[id->num];
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start_phys = flash->start[0] + part->offset;
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end_phys = start_phys + part->size - 1;
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for (i = 0; i < flash->sector_count; i++) {
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if (flash->start[i] >= end_phys)
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break;
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if (flash->start[i] >= start_phys) {
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if (i == flash->sector_count - 1) {
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size = flash->start[0] + flash->size - flash->start[i];
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} else {
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size = flash->start[i+1] - flash->start[i];
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}
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if (sector_size < size)
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sector_size = size;
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}
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}
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return sector_size;
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#else
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BUG();
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return 0;
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#endif
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}
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static inline u32 get_part_sector_size_onenand(void)
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{
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#if defined(CONFIG_CMD_ONENAND)
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struct mtd_info *mtd;
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mtd = &onenand_mtd;
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return mtd->erasesize;
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#else
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BUG();
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return 0;
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#endif
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}
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static inline u32 get_part_sector_size(struct mtdids *id, struct part_info *part)
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{
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if (id->type == MTD_DEV_TYPE_NAND)
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return get_part_sector_size_nand(id);
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else if (id->type == MTD_DEV_TYPE_NOR)
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return get_part_sector_size_nor(id, part);
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else if (id->type == MTD_DEV_TYPE_ONENAND)
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return get_part_sector_size_onenand();
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else
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DEBUGF("Error: Unknown device type.\n");
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return 0;
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}
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/**
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* Parse and initialize global mtdids mapping and create global
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* device/partition list.
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*
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* 'Static' version of command line mtdparts_init() routine. Single partition on
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* a single device configuration.
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*
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* @return 0 on success, 1 otherwise
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*/
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int mtdparts_init(void)
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{
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static int initialized = 0;
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u32 size;
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char *dev_name;
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DEBUGF("\n---mtdparts_init---\n");
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if (!initialized) {
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struct mtdids *id;
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struct part_info *part;
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initialized = 1;
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current_mtd_dev = (struct mtd_device *)
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malloc(sizeof(struct mtd_device) +
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sizeof(struct part_info) +
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sizeof(struct mtdids));
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if (!current_mtd_dev) {
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printf("out of memory\n");
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return 1;
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}
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memset(current_mtd_dev, 0, sizeof(struct mtd_device) +
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sizeof(struct part_info) + sizeof(struct mtdids));
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id = (struct mtdids *)(current_mtd_dev + 1);
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part = (struct part_info *)(id + 1);
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/* id */
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id->mtd_id = "single part";
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#if defined(CONFIG_JFFS2_DEV)
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dev_name = CONFIG_JFFS2_DEV;
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#else
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dev_name = "nor0";
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#endif
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if ((mtd_id_parse(dev_name, NULL, &id->type, &id->num) != 0) ||
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(mtd_device_validate(id->type, id->num, &size) != 0)) {
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printf("incorrect device: %s%d\n", MTD_DEV_TYPE(id->type), id->num);
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free(current_mtd_dev);
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return 1;
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}
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id->size = size;
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INIT_LIST_HEAD(&id->link);
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DEBUGF("dev id: type = %d, num = %d, size = 0x%08lx, mtd_id = %s\n",
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id->type, id->num, id->size, id->mtd_id);
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/* partition */
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part->name = "static";
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part->auto_name = 0;
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#if defined(CONFIG_JFFS2_PART_SIZE)
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part->size = CONFIG_JFFS2_PART_SIZE;
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#else
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part->size = SIZE_REMAINING;
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#endif
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#if defined(CONFIG_JFFS2_PART_OFFSET)
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part->offset = CONFIG_JFFS2_PART_OFFSET;
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#else
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part->offset = 0x00000000;
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#endif
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part->dev = current_mtd_dev;
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INIT_LIST_HEAD(&part->link);
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/* recalculate size if needed */
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if (part->size == SIZE_REMAINING)
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part->size = id->size - part->offset;
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part->sector_size = get_part_sector_size(id, part);
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DEBUGF("part : name = %s, size = 0x%08lx, offset = 0x%08lx\n",
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part->name, part->size, part->offset);
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/* device */
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current_mtd_dev->id = id;
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INIT_LIST_HEAD(¤t_mtd_dev->link);
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current_mtd_dev->num_parts = 1;
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INIT_LIST_HEAD(¤t_mtd_dev->parts);
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list_add(&part->link, ¤t_mtd_dev->parts);
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}
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return 0;
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}
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#endif /* #ifndef CONFIG_CMD_MTDPARTS */
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/**
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* Return pointer to the partition of a requested number from a requested
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* device.
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*
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* @param dev device that is to be searched for a partition
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* @param part_num requested partition number
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* @return pointer to the part_info, NULL otherwise
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*/
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static struct part_info* jffs2_part_info(struct mtd_device *dev, unsigned int part_num)
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{
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struct list_head *entry;
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struct part_info *part;
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int num;
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if (!dev)
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return NULL;
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DEBUGF("\n--- jffs2_part_info: partition number %d for device %s%d (%s)\n",
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part_num, MTD_DEV_TYPE(dev->id->type),
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dev->id->num, dev->id->mtd_id);
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if (part_num >= dev->num_parts) {
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printf("invalid partition number %d for device %s%d (%s)\n",
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part_num, MTD_DEV_TYPE(dev->id->type),
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dev->id->num, dev->id->mtd_id);
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return NULL;
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}
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/* locate partition number, return it */
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num = 0;
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list_for_each(entry, &dev->parts) {
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part = list_entry(entry, struct part_info, link);
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if (part_num == num++) {
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return part;
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}
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}
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return NULL;
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}
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/***************************************************/
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/* U-Boot commands */
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/***************************************************/
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/**
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* Routine implementing fsload u-boot command. This routine tries to load
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* a requested file from jffs2/cramfs filesystem on a current partition.
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*
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* @param cmdtp command internal data
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* @param flag command flag
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* @param argc number of arguments supplied to the command
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* @param argv arguments list
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* @return 0 on success, 1 otherwise
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*/
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int do_jffs2_fsload(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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char *fsname;
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char *filename;
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int size;
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struct part_info *part;
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ulong offset = load_addr;
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/* pre-set Boot file name */
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if ((filename = getenv("bootfile")) == NULL) {
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filename = "uImage";
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}
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if (argc == 2) {
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filename = argv[1];
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}
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if (argc == 3) {
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offset = simple_strtoul(argv[1], NULL, 16);
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load_addr = offset;
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filename = argv[2];
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}
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/* make sure we are in sync with env variables */
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if (mtdparts_init() !=0)
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return 1;
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if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
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/* check partition type for cramfs */
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fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
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printf("### %s loading '%s' to 0x%lx\n", fsname, filename, offset);
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if (cramfs_check(part)) {
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|
size = cramfs_load ((char *) offset, part, filename);
|
|
} else {
|
|
/* if this is not cramfs assume jffs2 */
|
|
size = jffs2_1pass_load((char *)offset, part, filename);
|
|
}
|
|
|
|
if (size > 0) {
|
|
printf("### %s load complete: %d bytes loaded to 0x%lx\n",
|
|
fsname, size, offset);
|
|
setenv_hex("filesize", size);
|
|
} else {
|
|
printf("### %s LOAD ERROR<%x> for %s!\n", fsname, size, filename);
|
|
}
|
|
|
|
return !(size > 0);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Routine implementing u-boot ls command which lists content of a given
|
|
* directory on a current partition.
|
|
*
|
|
* @param cmdtp command internal data
|
|
* @param flag command flag
|
|
* @param argc number of arguments supplied to the command
|
|
* @param argv arguments list
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int do_jffs2_ls(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
char *filename = "/";
|
|
int ret;
|
|
struct part_info *part;
|
|
|
|
if (argc == 2)
|
|
filename = argv[1];
|
|
|
|
/* make sure we are in sync with env variables */
|
|
if (mtdparts_init() !=0)
|
|
return 1;
|
|
|
|
if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
|
|
|
|
/* check partition type for cramfs */
|
|
if (cramfs_check(part)) {
|
|
ret = cramfs_ls (part, filename);
|
|
} else {
|
|
/* if this is not cramfs assume jffs2 */
|
|
ret = jffs2_1pass_ls(part, filename);
|
|
}
|
|
|
|
return ret ? 0 : 1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Routine implementing u-boot fsinfo command. This routine prints out
|
|
* miscellaneous filesystem informations/statistics.
|
|
*
|
|
* @param cmdtp command internal data
|
|
* @param flag command flag
|
|
* @param argc number of arguments supplied to the command
|
|
* @param argv arguments list
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int do_jffs2_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
struct part_info *part;
|
|
char *fsname;
|
|
int ret;
|
|
|
|
/* make sure we are in sync with env variables */
|
|
if (mtdparts_init() !=0)
|
|
return 1;
|
|
|
|
if ((part = jffs2_part_info(current_mtd_dev, current_mtd_partnum))){
|
|
|
|
/* check partition type for cramfs */
|
|
fsname = (cramfs_check(part) ? "CRAMFS" : "JFFS2");
|
|
printf("### filesystem type is %s\n", fsname);
|
|
|
|
if (cramfs_check(part)) {
|
|
ret = cramfs_info (part);
|
|
} else {
|
|
/* if this is not cramfs assume jffs2 */
|
|
ret = jffs2_1pass_info(part);
|
|
}
|
|
|
|
return ret ? 0 : 1;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/***************************************************/
|
|
U_BOOT_CMD(
|
|
fsload, 3, 0, do_jffs2_fsload,
|
|
"load binary file from a filesystem image",
|
|
"[ off ] [ filename ]\n"
|
|
" - load binary file from flash bank\n"
|
|
" with offset 'off'"
|
|
);
|
|
U_BOOT_CMD(
|
|
ls, 2, 1, do_jffs2_ls,
|
|
"list files in a directory (default /)",
|
|
"[ directory ]"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
fsinfo, 1, 1, do_jffs2_fsinfo,
|
|
"print information about filesystems",
|
|
""
|
|
);
|
|
/***************************************************/
|