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