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@@ -0,0 +1,1986 @@
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+/*
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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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+ * See file CREDITS for list of people who contributed to this
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+ * project.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License as
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+ * published by the Free Software Foundation; either version 2 of
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+ * the License, or (at your option) any later version.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with this program; if not, write to the Free Software
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+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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+ * MA 02111-1307 USA
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+ */
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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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+/*
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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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+
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+#if defined(CONFIG_CMD_NAND)
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+#ifdef CONFIG_NAND_LEGACY
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+#include <linux/mtd/nand_legacy.h>
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+#else /* !CONFIG_NAND_LEGACY */
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+#include <linux/mtd/nand.h>
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+#include <nand.h>
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+#endif /* !CONFIG_NAND_LEGACY */
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+#endif
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+
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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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+
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+/* enable/disable debugging messages */
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+#define DEBUG_MTDPARTS
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+#undef DEBUG_MTDPARTS
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+
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+#ifdef DEBUG_MTDPARTS
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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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+
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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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+
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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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+
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+/* minimum partition size */
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+#define MIN_PART_SIZE 4096
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+
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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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+
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+/* default values for mtdids and mtdparts variables */
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+#if defined(MTDIDS_DEFAULT)
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+static const char *const mtdids_default = MTDIDS_DEFAULT;
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+#else
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+#warning "MTDIDS_DEFAULT not defined!"
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+static const char *const mtdids_default = NULL;
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+#endif
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+
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+#if defined(MTDPARTS_DEFAULT)
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+static const char *const mtdparts_default = MTDPARTS_DEFAULT;
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+#else
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+#warning "MTDPARTS_DEFAULT not defined!"
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+static const char *const mtdparts_default = NULL;
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+#endif
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+
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+/* copies of last seen 'mtdids', 'mtdparts' and 'partition' env variables */
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+#define MTDIDS_MAXLEN 128
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+#define MTDPARTS_MAXLEN 512
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+#define PARTITION_MAXLEN 16
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+static char last_ids[MTDIDS_MAXLEN];
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+static char last_parts[MTDPARTS_MAXLEN];
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+static char last_partition[PARTITION_MAXLEN];
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+
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+/* low level jffs2 cache cleaning routine */
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+extern void jffs2_free_cache(struct part_info *part);
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+
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+/* mtdids mapping list, filled by parse_ids() */
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+struct list_head mtdids;
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+
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+/* device/partition list, parse_cmdline() parses into here */
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+struct list_head devices;
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+
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+/* current active device and partition number */
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+static struct mtd_device *current_dev = NULL;
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+static u8 current_partnum = 0;
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+
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+static struct part_info* mtd_part_info(struct mtd_device *dev, unsigned int part_num);
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+
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+/* command line only routines */
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+static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
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+static int device_del(struct mtd_device *dev);
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+
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+/**
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+ * Parses a string into a number. The number stored at ptr is
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+ * potentially suffixed with K (for kilobytes, or 1024 bytes),
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+ * M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
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+ * 1073741824). If the number is suffixed with K, M, or G, then
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+ * the return value is the number multiplied by one kilobyte, one
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+ * megabyte, or one gigabyte, respectively.
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+ *
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+ * @param ptr where parse begins
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+ * @param retptr output pointer to next char after parse completes (output)
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+ * @return resulting unsigned int
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+ */
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+static unsigned long memsize_parse (const char *const ptr, const char **retptr)
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+{
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+ unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
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+
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+ switch (**retptr) {
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+ case 'G':
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+ case 'g':
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+ ret <<= 10;
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+ case 'M':
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+ case 'm':
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+ ret <<= 10;
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+ case 'K':
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+ case 'k':
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+ ret <<= 10;
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+ (*retptr)++;
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+ default:
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+ break;
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+ }
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+
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+ return ret;
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+}
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+
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+/**
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+ * Format string describing supplied size. This routine does the opposite job
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+ * to memsize_parse(). Size in bytes is converted to string and if possible
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+ * shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
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+ *
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+ * Note, that this routine does not check for buffer overflow, it's the caller
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+ * who must assure enough space.
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+ *
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+ * @param buf output buffer
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+ * @param size size to be converted to string
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+ */
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+static void memsize_format(char *buf, u32 size)
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+{
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+#define SIZE_GB ((u32)1024*1024*1024)
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+#define SIZE_MB ((u32)1024*1024)
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+#define SIZE_KB ((u32)1024)
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+
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+ if ((size % SIZE_GB) == 0)
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+ sprintf(buf, "%ug", size/SIZE_GB);
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+ else if ((size % SIZE_MB) == 0)
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+ sprintf(buf, "%um", size/SIZE_MB);
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+ else if (size % SIZE_KB == 0)
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+ sprintf(buf, "%uk", size/SIZE_KB);
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+ else
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+ sprintf(buf, "%u", size);
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+}
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+
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+/**
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+ * This routine does global indexing of all partitions. Resulting index for
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+ * current partition is saved in 'mtddevnum'. Current partition name in
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+ * 'mtddevname'.
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+ */
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+static void index_partitions(void)
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+{
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+ char buf[16];
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+ u16 mtddevnum;
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+ struct part_info *part;
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+ struct list_head *dentry;
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+ struct mtd_device *dev;
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+
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+ DEBUGF("--- index partitions ---\n");
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+
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+ if (current_dev) {
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+ mtddevnum = 0;
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+ list_for_each(dentry, &devices) {
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+ dev = list_entry(dentry, struct mtd_device, link);
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+ if (dev == current_dev) {
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+ mtddevnum += current_partnum;
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+ sprintf(buf, "%d", mtddevnum);
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+ setenv("mtddevnum", buf);
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+ break;
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+ }
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+ mtddevnum += dev->num_parts;
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+ }
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+
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+ part = mtd_part_info(current_dev, current_partnum);
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+ setenv("mtddevname", part->name);
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+
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+ DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
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+ } else {
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+ setenv("mtddevnum", NULL);
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+ setenv("mtddevname", NULL);
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+
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+ DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
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+ }
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+}
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+
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+/**
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+ * Save current device and partition in environment variable 'partition'.
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+ */
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+static void current_save(void)
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+{
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+ char buf[16];
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+
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+ DEBUGF("--- current_save ---\n");
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+
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+ if (current_dev) {
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+ sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_dev->id->type),
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+ current_dev->id->num, current_partnum);
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+
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+ setenv("partition", buf);
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+ strncpy(last_partition, buf, 16);
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+
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+ DEBUGF("=> partition %s\n", buf);
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+ } else {
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+ setenv("partition", NULL);
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+ last_partition[0] = '\0';
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+
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+ DEBUGF("=> partition NULL\n");
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+ }
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+ index_partitions();
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+}
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+
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+/**
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+ * Performs sanity check for supplied NOR flash partition. Table of existing
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+ * NOR flash devices is searched and partition device is located. Alignment
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+ * with the granularity of NOR flash sectors is verified.
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+ *
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+ * @param id of the parent device
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+ * @param part partition to validate
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+ * @return 0 if partition is valid, 1 otherwise
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+ */
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+static int part_validate_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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+ /* info for FLASH chips */
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+ extern flash_info_t flash_info[];
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+ flash_info_t *flash;
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+ int offset_aligned;
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+ u32 end_offset, sector_size = 0;
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+ int i;
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+
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+ flash = &flash_info[id->num];
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+
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+ /* size of last sector */
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+ part->sector_size = flash->size -
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+ (flash->start[flash->sector_count-1] - flash->start[0]);
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+
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+ offset_aligned = 0;
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+ for (i = 0; i < flash->sector_count; i++) {
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+ if ((flash->start[i] - flash->start[0]) == part->offset) {
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+ offset_aligned = 1;
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+ break;
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+ }
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+ }
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+ if (offset_aligned == 0) {
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+ printf("%s%d: partition (%s) start offset alignment incorrect\n",
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+ MTD_DEV_TYPE(id->type), id->num, part->name);
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+ return 1;
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+ }
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+
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+ end_offset = part->offset + part->size;
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+ offset_aligned = 0;
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+ for (i = 0; i < flash->sector_count; i++) {
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+ if (i) {
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+ sector_size = flash->start[i] - flash->start[i-1];
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+ if (part->sector_size < sector_size)
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+ part->sector_size = sector_size;
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+ }
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+ if ((flash->start[i] - flash->start[0]) == end_offset)
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+ offset_aligned = 1;
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+ }
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+
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+ if (offset_aligned || flash->size == end_offset)
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+ return 0;
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+
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+ printf("%s%d: partition (%s) size alignment incorrect\n",
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+ MTD_DEV_TYPE(id->type), id->num, part->name);
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+#endif
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+ return 1;
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+}
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+
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+/**
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+ * Performs sanity check for supplied NAND flash partition. Table of existing
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+ * NAND flash devices is searched and partition device is located. Alignment
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+ * with the granularity of nand erasesize is verified.
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+ *
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+ * @param id of the parent device
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+ * @param part partition to validate
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+ * @return 0 if partition is valid, 1 otherwise
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+ */
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+static int part_validate_nand(struct mtdids *id, struct part_info *part)
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+{
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+#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
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+ /* info for NAND chips */
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+ nand_info_t *nand;
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+
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+ nand = &nand_info[id->num];
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+
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+ part->sector_size = nand->erasesize;
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+
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+ if ((unsigned long)(part->offset) % nand->erasesize) {
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+ printf("%s%d: partition (%s) start offset alignment incorrect\n",
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+ MTD_DEV_TYPE(id->type), id->num, part->name);
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+ return 1;
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+ }
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+
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+ if (part->size % nand->erasesize) {
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+ printf("%s%d: partition (%s) size alignment incorrect\n",
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+ MTD_DEV_TYPE(id->type), id->num, part->name);
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+ return 1;
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+ }
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+
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+ return 0;
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+#else
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+ return 1;
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|
|
+#endif
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Performs sanity check for supplied OneNAND flash partition.
|
|
|
+ * Table of existing OneNAND flash devices is searched and partition device
|
|
|
+ * is located. Alignment with the granularity of nand erasesize is verified.
|
|
|
+ *
|
|
|
+ * @param id of the parent device
|
|
|
+ * @param part partition to validate
|
|
|
+ * @return 0 if partition is valid, 1 otherwise
|
|
|
+ */
|
|
|
+static int part_validate_onenand(struct mtdids *id, struct part_info *part)
|
|
|
+{
|
|
|
+#if defined(CONFIG_CMD_ONENAND)
|
|
|
+ /* info for OneNAND chips */
|
|
|
+ struct mtd_info *mtd;
|
|
|
+
|
|
|
+ mtd = &onenand_mtd;
|
|
|
+
|
|
|
+ part->sector_size = mtd->erasesize;
|
|
|
+
|
|
|
+ if ((unsigned long)(part->offset) % mtd->erasesize) {
|
|
|
+ printf("%s%d: partition (%s) start offset"
|
|
|
+ "alignment incorrect\n",
|
|
|
+ MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (part->size % mtd->erasesize) {
|
|
|
+ printf("%s%d: partition (%s) size alignment incorrect\n",
|
|
|
+ MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+#else
|
|
|
+ return 1;
|
|
|
+#endif
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * Performs sanity check for supplied partition. Offset and size are verified
|
|
|
+ * to be within valid range. Partition type is checked and either
|
|
|
+ * parts_validate_nor() or parts_validate_nand() is called with the argument
|
|
|
+ * of part.
|
|
|
+ *
|
|
|
+ * @param id of the parent device
|
|
|
+ * @param part partition to validate
|
|
|
+ * @return 0 if partition is valid, 1 otherwise
|
|
|
+ */
|
|
|
+static int part_validate(struct mtdids *id, struct part_info *part)
|
|
|
+{
|
|
|
+ if (part->size == SIZE_REMAINING)
|
|
|
+ part->size = id->size - part->offset;
|
|
|
+
|
|
|
+ if (part->offset > id->size) {
|
|
|
+ printf("%s: offset %08x beyond flash size %08x\n",
|
|
|
+ id->mtd_id, part->offset, id->size);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((part->offset + part->size) <= part->offset) {
|
|
|
+ printf("%s%d: partition (%s) size too big\n",
|
|
|
+ MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (part->offset + part->size > id->size) {
|
|
|
+ printf("%s: partitioning exceeds flash size\n", id->mtd_id);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (id->type == MTD_DEV_TYPE_NAND)
|
|
|
+ return part_validate_nand(id, part);
|
|
|
+ else if (id->type == MTD_DEV_TYPE_NOR)
|
|
|
+ return part_validate_nor(id, part);
|
|
|
+ else if (id->type == MTD_DEV_TYPE_ONENAND)
|
|
|
+ return part_validate_onenand(id, part);
|
|
|
+ else
|
|
|
+ DEBUGF("part_validate: invalid dev type\n");
|
|
|
+
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Delete selected partition from the partion list of the specified device.
|
|
|
+ *
|
|
|
+ * @param dev device to delete partition from
|
|
|
+ * @param part partition to delete
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int part_del(struct mtd_device *dev, struct part_info *part)
|
|
|
+{
|
|
|
+ u8 current_save_needed = 0;
|
|
|
+
|
|
|
+ /* if there is only one partition, remove whole device */
|
|
|
+ if (dev->num_parts == 1)
|
|
|
+ return device_del(dev);
|
|
|
+
|
|
|
+ /* otherwise just delete this partition */
|
|
|
+
|
|
|
+ if (dev == current_dev) {
|
|
|
+ /* we are modyfing partitions for the current device,
|
|
|
+ * update current */
|
|
|
+ struct part_info *curr_pi;
|
|
|
+ curr_pi = mtd_part_info(current_dev, current_partnum);
|
|
|
+
|
|
|
+ if (curr_pi) {
|
|
|
+ if (curr_pi == part) {
|
|
|
+ printf("current partition deleted, resetting current to 0\n");
|
|
|
+ current_partnum = 0;
|
|
|
+ } else if (part->offset <= curr_pi->offset) {
|
|
|
+ current_partnum--;
|
|
|
+ }
|
|
|
+ current_save_needed = 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+#ifdef CONFIG_NAND_LEGACY
|
|
|
+ jffs2_free_cache(part);
|
|
|
+#endif
|
|
|
+ list_del(&part->link);
|
|
|
+ free(part);
|
|
|
+ dev->num_parts--;
|
|
|
+
|
|
|
+ if (current_save_needed > 0)
|
|
|
+ current_save();
|
|
|
+ else
|
|
|
+ index_partitions();
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Delete all partitions from parts head list, free memory.
|
|
|
+ *
|
|
|
+ * @param head list of partitions to delete
|
|
|
+ */
|
|
|
+static void part_delall(struct list_head *head)
|
|
|
+{
|
|
|
+ struct list_head *entry, *n;
|
|
|
+ struct part_info *part_tmp;
|
|
|
+
|
|
|
+ /* clean tmp_list and free allocated memory */
|
|
|
+ list_for_each_safe(entry, n, head) {
|
|
|
+ part_tmp = list_entry(entry, struct part_info, link);
|
|
|
+
|
|
|
+#ifdef CONFIG_NAND_LEGACY
|
|
|
+ jffs2_free_cache(part_tmp);
|
|
|
+#endif
|
|
|
+ list_del(entry);
|
|
|
+ free(part_tmp);
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Add new partition to the supplied partition list. Make sure partitions are
|
|
|
+ * sorted by offset in ascending order.
|
|
|
+ *
|
|
|
+ * @param head list this partition is to be added to
|
|
|
+ * @param new partition to be added
|
|
|
+ */
|
|
|
+static int part_sort_add(struct mtd_device *dev, struct part_info *part)
|
|
|
+{
|
|
|
+ struct list_head *entry;
|
|
|
+ struct part_info *new_pi, *curr_pi;
|
|
|
+
|
|
|
+ /* link partition to parrent dev */
|
|
|
+ part->dev = dev;
|
|
|
+
|
|
|
+ if (list_empty(&dev->parts)) {
|
|
|
+ DEBUGF("part_sort_add: list empty\n");
|
|
|
+ list_add(&part->link, &dev->parts);
|
|
|
+ dev->num_parts++;
|
|
|
+ index_partitions();
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ new_pi = list_entry(&part->link, struct part_info, link);
|
|
|
+
|
|
|
+ /* get current partition info if we are updating current device */
|
|
|
+ curr_pi = NULL;
|
|
|
+ if (dev == current_dev)
|
|
|
+ curr_pi = mtd_part_info(current_dev, current_partnum);
|
|
|
+
|
|
|
+ list_for_each(entry, &dev->parts) {
|
|
|
+ struct part_info *pi;
|
|
|
+
|
|
|
+ pi = list_entry(entry, struct part_info, link);
|
|
|
+
|
|
|
+ /* be compliant with kernel cmdline, allow only one partition at offset zero */
|
|
|
+ if ((new_pi->offset == pi->offset) && (pi->offset == 0)) {
|
|
|
+ printf("cannot add second partition at offset 0\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (new_pi->offset <= pi->offset) {
|
|
|
+ list_add_tail(&part->link, entry);
|
|
|
+ dev->num_parts++;
|
|
|
+
|
|
|
+ if (curr_pi && (pi->offset <= curr_pi->offset)) {
|
|
|
+ /* we are modyfing partitions for the current
|
|
|
+ * device, update current */
|
|
|
+ current_partnum++;
|
|
|
+ current_save();
|
|
|
+ } else {
|
|
|
+ index_partitions();
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ list_add_tail(&part->link, &dev->parts);
|
|
|
+ dev->num_parts++;
|
|
|
+ index_partitions();
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Add provided partition to the partition list of a given device.
|
|
|
+ *
|
|
|
+ * @param dev device to which partition is added
|
|
|
+ * @param part partition to be added
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int part_add(struct mtd_device *dev, struct part_info *part)
|
|
|
+{
|
|
|
+ /* verify alignment and size */
|
|
|
+ if (part_validate(dev->id, part) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ /* partition is ok, add it to the list */
|
|
|
+ if (part_sort_add(dev, part) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parse one partition definition, allocate memory and return pointer to this
|
|
|
+ * location in retpart.
|
|
|
+ *
|
|
|
+ * @param partdef pointer to the partition definition string i.e. <part-def>
|
|
|
+ * @param ret output pointer to next char after parse completes (output)
|
|
|
+ * @param retpart pointer to the allocated partition (output)
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
|
|
|
+{
|
|
|
+ struct part_info *part;
|
|
|
+ unsigned long size;
|
|
|
+ unsigned long offset;
|
|
|
+ const char *name;
|
|
|
+ int name_len;
|
|
|
+ unsigned int mask_flags;
|
|
|
+ const char *p;
|
|
|
+
|
|
|
+ p = partdef;
|
|
|
+ *retpart = NULL;
|
|
|
+ *ret = NULL;
|
|
|
+
|
|
|
+ /* fetch the partition size */
|
|
|
+ if (*p == '-') {
|
|
|
+ /* assign all remaining space to this partition */
|
|
|
+ DEBUGF("'-': remaining size assigned\n");
|
|
|
+ size = SIZE_REMAINING;
|
|
|
+ p++;
|
|
|
+ } else {
|
|
|
+ size = memsize_parse(p, &p);
|
|
|
+ if (size < MIN_PART_SIZE) {
|
|
|
+ printf("partition size too small (%lx)\n", size);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check for offset */
|
|
|
+ offset = OFFSET_NOT_SPECIFIED;
|
|
|
+ if (*p == '@') {
|
|
|
+ p++;
|
|
|
+ offset = memsize_parse(p, &p);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* now look for the name */
|
|
|
+ if (*p == '(') {
|
|
|
+ name = ++p;
|
|
|
+ if ((p = strchr(name, ')')) == NULL) {
|
|
|
+ printf("no closing ) found in partition name\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ name_len = p - name + 1;
|
|
|
+ if ((name_len - 1) == 0) {
|
|
|
+ printf("empty partition name\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ p++;
|
|
|
+ } else {
|
|
|
+ /* 0x00000000@0x00000000 */
|
|
|
+ name_len = 22;
|
|
|
+ name = NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* test for options */
|
|
|
+ mask_flags = 0;
|
|
|
+ if (strncmp(p, "ro", 2) == 0) {
|
|
|
+ mask_flags |= MTD_WRITEABLE_CMD;
|
|
|
+ p += 2;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check for next partition definition */
|
|
|
+ if (*p == ',') {
|
|
|
+ if (size == SIZE_REMAINING) {
|
|
|
+ *ret = NULL;
|
|
|
+ printf("no partitions allowed after a fill-up partition\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ *ret = ++p;
|
|
|
+ } else if ((*p == ';') || (*p == '\0')) {
|
|
|
+ *ret = p;
|
|
|
+ } else {
|
|
|
+ printf("unexpected character '%c' at the end of partition\n", *p);
|
|
|
+ *ret = NULL;
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* allocate memory */
|
|
|
+ part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
|
|
|
+ if (!part) {
|
|
|
+ printf("out of memory\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ memset(part, 0, sizeof(struct part_info) + name_len);
|
|
|
+ part->size = size;
|
|
|
+ part->offset = offset;
|
|
|
+ part->mask_flags = mask_flags;
|
|
|
+ part->name = (char *)(part + 1);
|
|
|
+
|
|
|
+ if (name) {
|
|
|
+ /* copy user provided name */
|
|
|
+ strncpy(part->name, name, name_len - 1);
|
|
|
+ part->auto_name = 0;
|
|
|
+ } else {
|
|
|
+ /* auto generated name in form of size@offset */
|
|
|
+ sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
|
|
|
+ part->auto_name = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ part->name[name_len - 1] = '\0';
|
|
|
+ INIT_LIST_HEAD(&part->link);
|
|
|
+
|
|
|
+ DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
|
|
|
+ part->name, part->size,
|
|
|
+ part->offset, part->mask_flags);
|
|
|
+
|
|
|
+ *retpart = part;
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * 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
|
|
|
+ */
|
|
|
+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) {
|
|
|
+#ifndef CONFIG_NAND_LEGACY
|
|
|
+ *size = nand_info[num].size;
|
|
|
+#else
|
|
|
+ extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
|
|
|
+ *size = nand_dev_desc[num].totlen;
|
|
|
+#endif
|
|
|
+ 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;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Delete all mtd devices from a supplied devices list, free memory allocated for
|
|
|
+ * each device and delete all device partitions.
|
|
|
+ *
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int device_delall(struct list_head *head)
|
|
|
+{
|
|
|
+ struct list_head *entry, *n;
|
|
|
+ struct mtd_device *dev_tmp;
|
|
|
+
|
|
|
+ /* clean devices list */
|
|
|
+ list_for_each_safe(entry, n, head) {
|
|
|
+ dev_tmp = list_entry(entry, struct mtd_device, link);
|
|
|
+ list_del(entry);
|
|
|
+ part_delall(&dev_tmp->parts);
|
|
|
+ free(dev_tmp);
|
|
|
+ }
|
|
|
+ INIT_LIST_HEAD(&devices);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * If provided device exists it's partitions are deleted, device is removed
|
|
|
+ * from device list and device memory is freed.
|
|
|
+ *
|
|
|
+ * @param dev device to be deleted
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int device_del(struct mtd_device *dev)
|
|
|
+{
|
|
|
+ part_delall(&dev->parts);
|
|
|
+ list_del(&dev->link);
|
|
|
+ free(dev);
|
|
|
+
|
|
|
+ if (dev == current_dev) {
|
|
|
+ /* we just deleted current device */
|
|
|
+ if (list_empty(&devices)) {
|
|
|
+ current_dev = NULL;
|
|
|
+ } else {
|
|
|
+ /* reset first partition from first dev from the
|
|
|
+ * devices list as current */
|
|
|
+ current_dev = list_entry(devices.next, struct mtd_device, link);
|
|
|
+ current_partnum = 0;
|
|
|
+ }
|
|
|
+ current_save();
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ index_partitions();
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Search global device list and return pointer to the device of type and num
|
|
|
+ * specified.
|
|
|
+ *
|
|
|
+ * @param type device type
|
|
|
+ * @param num device number
|
|
|
+ * @return NULL if requested device does not exist
|
|
|
+ */
|
|
|
+static struct mtd_device* device_find(u8 type, u8 num)
|
|
|
+{
|
|
|
+ struct list_head *entry;
|
|
|
+ struct mtd_device *dev_tmp;
|
|
|
+
|
|
|
+ list_for_each(entry, &devices) {
|
|
|
+ dev_tmp = list_entry(entry, struct mtd_device, link);
|
|
|
+
|
|
|
+ if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
|
|
|
+ return dev_tmp;
|
|
|
+ }
|
|
|
+
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Add specified device to the global device list.
|
|
|
+ *
|
|
|
+ * @param dev device to be added
|
|
|
+ */
|
|
|
+static void device_add(struct mtd_device *dev)
|
|
|
+{
|
|
|
+ u8 current_save_needed = 0;
|
|
|
+
|
|
|
+ if (list_empty(&devices)) {
|
|
|
+ current_dev = dev;
|
|
|
+ current_partnum = 0;
|
|
|
+ current_save_needed = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ list_add_tail(&dev->link, &devices);
|
|
|
+
|
|
|
+ if (current_save_needed > 0)
|
|
|
+ current_save();
|
|
|
+ else
|
|
|
+ index_partitions();
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parse device type, name and mtd-id. If syntax is ok allocate memory and
|
|
|
+ * return pointer to the device structure.
|
|
|
+ *
|
|
|
+ * @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
|
|
|
+ * @param ret output pointer to next char after parse completes (output)
|
|
|
+ * @param retdev pointer to the allocated device (output)
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
|
|
|
+{
|
|
|
+ struct mtd_device *dev;
|
|
|
+ struct part_info *part;
|
|
|
+ struct mtdids *id;
|
|
|
+ const char *mtd_id;
|
|
|
+ unsigned int mtd_id_len;
|
|
|
+ const char *p, *pend;
|
|
|
+ LIST_HEAD(tmp_list);
|
|
|
+ struct list_head *entry, *n;
|
|
|
+ u16 num_parts;
|
|
|
+ u32 offset;
|
|
|
+ int err = 1;
|
|
|
+
|
|
|
+ p = mtd_dev;
|
|
|
+ *retdev = NULL;
|
|
|
+ *ret = NULL;
|
|
|
+
|
|
|
+ DEBUGF("===device_parse===\n");
|
|
|
+
|
|
|
+ /* fetch <mtd-id> */
|
|
|
+ mtd_id = p;
|
|
|
+ if (!(p = strchr(mtd_id, ':'))) {
|
|
|
+ printf("no <mtd-id> identifier\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ mtd_id_len = p - mtd_id + 1;
|
|
|
+ p++;
|
|
|
+
|
|
|
+ /* verify if we have a valid device specified */
|
|
|
+ if ((id = id_find_by_mtd_id(mtd_id, mtd_id_len - 1)) == NULL) {
|
|
|
+ printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
|
|
|
+ id->type, MTD_DEV_TYPE(id->type),
|
|
|
+ id->num, id->mtd_id);
|
|
|
+ pend = strchr(p, ';');
|
|
|
+ DEBUGF("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
|
|
|
+
|
|
|
+
|
|
|
+ /* parse partitions */
|
|
|
+ num_parts = 0;
|
|
|
+
|
|
|
+ offset = 0;
|
|
|
+ if ((dev = device_find(id->type, id->num)) != NULL) {
|
|
|
+ /* if device already exists start at the end of the last partition */
|
|
|
+ part = list_entry(dev->parts.prev, struct part_info, link);
|
|
|
+ offset = part->offset + part->size;
|
|
|
+ }
|
|
|
+
|
|
|
+ while (p && (*p != '\0') && (*p != ';')) {
|
|
|
+ err = 1;
|
|
|
+ if ((part_parse(p, &p, &part) != 0) || (!part))
|
|
|
+ break;
|
|
|
+
|
|
|
+ /* calculate offset when not specified */
|
|
|
+ if (part->offset == OFFSET_NOT_SPECIFIED)
|
|
|
+ part->offset = offset;
|
|
|
+ else
|
|
|
+ offset = part->offset;
|
|
|
+
|
|
|
+ /* verify alignment and size */
|
|
|
+ if (part_validate(id, part) != 0)
|
|
|
+ break;
|
|
|
+
|
|
|
+ offset += part->size;
|
|
|
+
|
|
|
+ /* partition is ok, add it to the list */
|
|
|
+ list_add_tail(&part->link, &tmp_list);
|
|
|
+ num_parts++;
|
|
|
+ err = 0;
|
|
|
+ }
|
|
|
+ if (err == 1) {
|
|
|
+ part_delall(&tmp_list);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (num_parts == 0) {
|
|
|
+ printf("no partitions for device %s%d (%s)\n",
|
|
|
+ MTD_DEV_TYPE(id->type), id->num, id->mtd_id);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ DEBUGF("\ntotal partitions: %d\n", num_parts);
|
|
|
+
|
|
|
+ /* check for next device presence */
|
|
|
+ if (p) {
|
|
|
+ if (*p == ';') {
|
|
|
+ *ret = ++p;
|
|
|
+ } else if (*p == '\0') {
|
|
|
+ *ret = p;
|
|
|
+ } else {
|
|
|
+ printf("unexpected character '%c' at the end of device\n", *p);
|
|
|
+ *ret = NULL;
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* allocate memory for mtd_device structure */
|
|
|
+ if ((dev = (struct mtd_device *)malloc(sizeof(struct mtd_device))) == NULL) {
|
|
|
+ printf("out of memory\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ memset(dev, 0, sizeof(struct mtd_device));
|
|
|
+ dev->id = id;
|
|
|
+ dev->num_parts = 0; /* part_sort_add increments num_parts */
|
|
|
+ INIT_LIST_HEAD(&dev->parts);
|
|
|
+ INIT_LIST_HEAD(&dev->link);
|
|
|
+
|
|
|
+ /* move partitions from tmp_list to dev->parts */
|
|
|
+ list_for_each_safe(entry, n, &tmp_list) {
|
|
|
+ part = list_entry(entry, struct part_info, link);
|
|
|
+ list_del(entry);
|
|
|
+ if (part_sort_add(dev, part) != 0) {
|
|
|
+ device_del(dev);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ *retdev = dev;
|
|
|
+
|
|
|
+ DEBUGF("===\n\n");
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Initialize global device list.
|
|
|
+ *
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int mtd_devices_init(void)
|
|
|
+{
|
|
|
+ last_parts[0] = '\0';
|
|
|
+ current_dev = NULL;
|
|
|
+ current_save();
|
|
|
+
|
|
|
+ return device_delall(&devices);
|
|
|
+}
|
|
|
+
|
|
|
+/*
|
|
|
+ * Search global mtdids list and find id of requested type and number.
|
|
|
+ *
|
|
|
+ * @return pointer to the id if it exists, NULL otherwise
|
|
|
+ */
|
|
|
+static struct mtdids* id_find(u8 type, u8 num)
|
|
|
+{
|
|
|
+ struct list_head *entry;
|
|
|
+ struct mtdids *id;
|
|
|
+
|
|
|
+ list_for_each(entry, &mtdids) {
|
|
|
+ id = list_entry(entry, struct mtdids, link);
|
|
|
+
|
|
|
+ if ((id->type == type) && (id->num == num))
|
|
|
+ return id;
|
|
|
+ }
|
|
|
+
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Search global mtdids list and find id of a requested mtd_id.
|
|
|
+ *
|
|
|
+ * Note: first argument is not null terminated.
|
|
|
+ *
|
|
|
+ * @param mtd_id string containing requested mtd_id
|
|
|
+ * @param mtd_id_len length of supplied mtd_id
|
|
|
+ * @return pointer to the id if it exists, NULL otherwise
|
|
|
+ */
|
|
|
+static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
|
|
|
+{
|
|
|
+ struct list_head *entry;
|
|
|
+ struct mtdids *id;
|
|
|
+
|
|
|
+ DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
|
|
|
+ mtd_id_len, mtd_id, mtd_id_len);
|
|
|
+
|
|
|
+ list_for_each(entry, &mtdids) {
|
|
|
+ id = list_entry(entry, struct mtdids, link);
|
|
|
+
|
|
|
+ DEBUGF("entry: '%s' (len = %d)\n",
|
|
|
+ id->mtd_id, strlen(id->mtd_id));
|
|
|
+
|
|
|
+ if (mtd_id_len != strlen(id->mtd_id))
|
|
|
+ continue;
|
|
|
+ if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
|
|
|
+ return id;
|
|
|
+ }
|
|
|
+
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * 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
|
|
|
+ */
|
|
|
+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;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Process all devices and generate corresponding mtdparts string describing
|
|
|
+ * all partitions on all devices.
|
|
|
+ *
|
|
|
+ * @param buf output buffer holding generated mtdparts string (output)
|
|
|
+ * @param buflen buffer size
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int generate_mtdparts(char *buf, u32 buflen)
|
|
|
+{
|
|
|
+ struct list_head *pentry, *dentry;
|
|
|
+ struct mtd_device *dev;
|
|
|
+ struct part_info *part, *prev_part;
|
|
|
+ char *p = buf;
|
|
|
+ char tmpbuf[32];
|
|
|
+ u32 size, offset, len, part_cnt;
|
|
|
+ u32 maxlen = buflen - 1;
|
|
|
+
|
|
|
+ DEBUGF("--- generate_mtdparts ---\n");
|
|
|
+
|
|
|
+ if (list_empty(&devices)) {
|
|
|
+ buf[0] = '\0';
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ sprintf(p, "mtdparts=");
|
|
|
+ p += 9;
|
|
|
+
|
|
|
+ list_for_each(dentry, &devices) {
|
|
|
+ dev = list_entry(dentry, struct mtd_device, link);
|
|
|
+
|
|
|
+ /* copy mtd_id */
|
|
|
+ len = strlen(dev->id->mtd_id) + 1;
|
|
|
+ if (len > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ memcpy(p, dev->id->mtd_id, len - 1);
|
|
|
+ p += len - 1;
|
|
|
+ *(p++) = ':';
|
|
|
+ maxlen -= len;
|
|
|
+
|
|
|
+ /* format partitions */
|
|
|
+ prev_part = NULL;
|
|
|
+ part_cnt = 0;
|
|
|
+ list_for_each(pentry, &dev->parts) {
|
|
|
+ part = list_entry(pentry, struct part_info, link);
|
|
|
+ size = part->size;
|
|
|
+ offset = part->offset;
|
|
|
+ part_cnt++;
|
|
|
+
|
|
|
+ /* partition size */
|
|
|
+ memsize_format(tmpbuf, size);
|
|
|
+ len = strlen(tmpbuf);
|
|
|
+ if (len > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ memcpy(p, tmpbuf, len);
|
|
|
+ p += len;
|
|
|
+ maxlen -= len;
|
|
|
+
|
|
|
+
|
|
|
+ /* add offset only when there is a gap between
|
|
|
+ * partitions */
|
|
|
+ if ((!prev_part && (offset != 0)) ||
|
|
|
+ (prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
|
|
|
+
|
|
|
+ memsize_format(tmpbuf, offset);
|
|
|
+ len = strlen(tmpbuf) + 1;
|
|
|
+ if (len > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ *(p++) = '@';
|
|
|
+ memcpy(p, tmpbuf, len - 1);
|
|
|
+ p += len - 1;
|
|
|
+ maxlen -= len;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* copy name only if user supplied */
|
|
|
+ if(!part->auto_name) {
|
|
|
+ len = strlen(part->name) + 2;
|
|
|
+ if (len > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+
|
|
|
+ *(p++) = '(';
|
|
|
+ memcpy(p, part->name, len - 2);
|
|
|
+ p += len - 2;
|
|
|
+ *(p++) = ')';
|
|
|
+ maxlen -= len;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* ro mask flag */
|
|
|
+ if (part->mask_flags && MTD_WRITEABLE_CMD) {
|
|
|
+ len = 2;
|
|
|
+ if (len > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ *(p++) = 'r';
|
|
|
+ *(p++) = 'o';
|
|
|
+ maxlen -= 2;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* print ',' separator if there are other partitions
|
|
|
+ * following */
|
|
|
+ if (dev->num_parts > part_cnt) {
|
|
|
+ if (1 > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ *(p++) = ',';
|
|
|
+ maxlen--;
|
|
|
+ }
|
|
|
+ prev_part = part;
|
|
|
+ }
|
|
|
+ /* print ';' separator if there are other devices following */
|
|
|
+ if (dentry->next != &devices) {
|
|
|
+ if (1 > maxlen)
|
|
|
+ goto cleanup;
|
|
|
+ *(p++) = ';';
|
|
|
+ maxlen--;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* we still have at least one char left, as we decremented maxlen at
|
|
|
+ * the begining */
|
|
|
+ *p = '\0';
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+cleanup:
|
|
|
+ last_parts[0] = '\0';
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Call generate_mtdparts to process all devices and generate corresponding
|
|
|
+ * mtdparts string, save it in mtdparts environment variable.
|
|
|
+ *
|
|
|
+ * @param buf output buffer holding generated mtdparts string (output)
|
|
|
+ * @param buflen buffer size
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int generate_mtdparts_save(char *buf, u32 buflen)
|
|
|
+{
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ ret = generate_mtdparts(buf, buflen);
|
|
|
+
|
|
|
+ if ((buf[0] != '\0') && (ret == 0))
|
|
|
+ setenv("mtdparts", buf);
|
|
|
+ else
|
|
|
+ setenv("mtdparts", NULL);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Format and print out a partition list for each device from global device
|
|
|
+ * list.
|
|
|
+ */
|
|
|
+static void list_partitions(void)
|
|
|
+{
|
|
|
+ struct list_head *dentry, *pentry;
|
|
|
+ struct part_info *part;
|
|
|
+ struct mtd_device *dev;
|
|
|
+ int part_num;
|
|
|
+
|
|
|
+ DEBUGF("\n---list_partitions---\n");
|
|
|
+ list_for_each(dentry, &devices) {
|
|
|
+ dev = list_entry(dentry, struct mtd_device, link);
|
|
|
+ printf("\ndevice %s%d <%s>, # parts = %d\n",
|
|
|
+ MTD_DEV_TYPE(dev->id->type), dev->id->num,
|
|
|
+ dev->id->mtd_id, dev->num_parts);
|
|
|
+ printf(" #: name\t\t\tsize\t\toffset\t\tmask_flags\n");
|
|
|
+
|
|
|
+ /* list partitions for given device */
|
|
|
+ part_num = 0;
|
|
|
+ list_for_each(pentry, &dev->parts) {
|
|
|
+ part = list_entry(pentry, struct part_info, link);
|
|
|
+ printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
|
|
|
+ part_num, part->name, part->size,
|
|
|
+ part->offset, part->mask_flags);
|
|
|
+
|
|
|
+ part_num++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (list_empty(&devices))
|
|
|
+ printf("no partitions defined\n");
|
|
|
+
|
|
|
+ /* current_dev is not NULL only when we have non empty device list */
|
|
|
+ if (current_dev) {
|
|
|
+ part = mtd_part_info(current_dev, current_partnum);
|
|
|
+ if (part) {
|
|
|
+ printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
|
|
|
+ MTD_DEV_TYPE(current_dev->id->type),
|
|
|
+ current_dev->id->num, current_partnum,
|
|
|
+ part->name, part->size, part->offset);
|
|
|
+ } else {
|
|
|
+ printf("could not get current partition info\n\n");
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ printf("\ndefaults:\n");
|
|
|
+ printf("mtdids : %s\n", mtdids_default);
|
|
|
+ printf("mtdparts: %s\n", mtdparts_default);
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Given partition identifier in form of <dev_type><dev_num>,<part_num> find
|
|
|
+ * corresponding device and verify partition number.
|
|
|
+ *
|
|
|
+ * @param id string describing device and partition or partition name
|
|
|
+ * @param dev pointer to the requested device (output)
|
|
|
+ * @param part_num verified partition number (output)
|
|
|
+ * @param part pointer to requested partition (output)
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+int find_dev_and_part(const char *id, struct mtd_device **dev,
|
|
|
+ u8 *part_num, struct part_info **part)
|
|
|
+{
|
|
|
+ struct list_head *dentry, *pentry;
|
|
|
+ u8 type, dnum, pnum;
|
|
|
+ const char *p;
|
|
|
+
|
|
|
+ DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
|
|
|
+
|
|
|
+ list_for_each(dentry, &devices) {
|
|
|
+ *part_num = 0;
|
|
|
+ *dev = list_entry(dentry, struct mtd_device, link);
|
|
|
+ list_for_each(pentry, &(*dev)->parts) {
|
|
|
+ *part = list_entry(pentry, struct part_info, link);
|
|
|
+ if (strcmp((*part)->name, id) == 0)
|
|
|
+ return 0;
|
|
|
+ (*part_num)++;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ p = id;
|
|
|
+ *dev = NULL;
|
|
|
+ *part = NULL;
|
|
|
+ *part_num = 0;
|
|
|
+
|
|
|
+ if (mtd_id_parse(p, &p, &type, &dnum) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if ((*p++ != ',') || (*p == '\0')) {
|
|
|
+ printf("no partition number specified\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ pnum = simple_strtoul(p, (char **)&p, 0);
|
|
|
+ if (*p != '\0') {
|
|
|
+ printf("unexpected trailing character '%c'\n", *p);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((*dev = device_find(type, dnum)) == NULL) {
|
|
|
+ printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if ((*part = mtd_part_info(*dev, pnum)) == NULL) {
|
|
|
+ printf("no such partition\n");
|
|
|
+ *dev = NULL;
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ *part_num = pnum;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Find and delete partition. For partition id format see find_dev_and_part().
|
|
|
+ *
|
|
|
+ * @param id string describing device and partition
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int delete_partition(const char *id)
|
|
|
+{
|
|
|
+ u8 pnum;
|
|
|
+ struct mtd_device *dev;
|
|
|
+ struct part_info *part;
|
|
|
+
|
|
|
+ if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
|
|
|
+
|
|
|
+ DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
|
|
|
+ MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
|
|
|
+ part->name, part->size, part->offset);
|
|
|
+
|
|
|
+ if (part_del(dev, part) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
|
|
|
+ printf("generated mtdparts too long, reseting to null\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ printf("partition %s not found\n", id);
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Accept character string describing mtd partitions and call device_parse()
|
|
|
+ * for each entry. Add created devices to the global devices list.
|
|
|
+ *
|
|
|
+ * @param mtdparts string specifing mtd partitions
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int parse_mtdparts(const char *const mtdparts)
|
|
|
+{
|
|
|
+ const char *p = mtdparts;
|
|
|
+ struct mtd_device *dev;
|
|
|
+ int err = 1;
|
|
|
+
|
|
|
+ DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
|
|
|
+
|
|
|
+ /* delete all devices and partitions */
|
|
|
+ if (mtd_devices_init() != 0) {
|
|
|
+ printf("could not initialise device list\n");
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* re-read 'mtdparts' variable, mtd_devices_init may be updating env */
|
|
|
+ p = getenv("mtdparts");
|
|
|
+
|
|
|
+ if (strncmp(p, "mtdparts=", 9) != 0) {
|
|
|
+ printf("mtdparts variable doesn't start with 'mtdparts='\n");
|
|
|
+ return err;
|
|
|
+ }
|
|
|
+ p += 9;
|
|
|
+
|
|
|
+ while (p && (*p != '\0')) {
|
|
|
+ err = 1;
|
|
|
+ if ((device_parse(p, &p, &dev) != 0) || (!dev))
|
|
|
+ break;
|
|
|
+
|
|
|
+ DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
|
|
|
+ dev->id->num, dev->id->mtd_id);
|
|
|
+
|
|
|
+ /* check if parsed device is already on the list */
|
|
|
+ if (device_find(dev->id->type, dev->id->num) != NULL) {
|
|
|
+ printf("device %s%d redefined, please correct mtdparts variable\n",
|
|
|
+ MTD_DEV_TYPE(dev->id->type), dev->id->num);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ list_add_tail(&dev->link, &devices);
|
|
|
+ err = 0;
|
|
|
+ }
|
|
|
+ if (err == 1) {
|
|
|
+ device_delall(&devices);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parse provided string describing mtdids mapping (see file header for mtdids
|
|
|
+ * variable format). Allocate memory for each entry and add all found entries
|
|
|
+ * to the global mtdids list.
|
|
|
+ *
|
|
|
+ * @param ids mapping string
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+static int parse_mtdids(const char *const ids)
|
|
|
+{
|
|
|
+ const char *p = ids;
|
|
|
+ const char *mtd_id;
|
|
|
+ int mtd_id_len;
|
|
|
+ struct mtdids *id;
|
|
|
+ struct list_head *entry, *n;
|
|
|
+ struct mtdids *id_tmp;
|
|
|
+ u8 type, num;
|
|
|
+ u32 size;
|
|
|
+ int ret = 1;
|
|
|
+
|
|
|
+ DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
|
|
|
+
|
|
|
+ /* clean global mtdids list */
|
|
|
+ list_for_each_safe(entry, n, &mtdids) {
|
|
|
+ id_tmp = list_entry(entry, struct mtdids, link);
|
|
|
+ DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
|
|
|
+ list_del(entry);
|
|
|
+ free(id_tmp);
|
|
|
+ }
|
|
|
+ last_ids[0] = '\0';
|
|
|
+ INIT_LIST_HEAD(&mtdids);
|
|
|
+
|
|
|
+ while(p && (*p != '\0')) {
|
|
|
+
|
|
|
+ ret = 1;
|
|
|
+ /* parse 'nor'|'nand'|'onenand'<dev-num> */
|
|
|
+ if (mtd_id_parse(p, &p, &type, &num) != 0)
|
|
|
+ break;
|
|
|
+
|
|
|
+ if (*p != '=') {
|
|
|
+ printf("mtdids: incorrect <dev-num>\n");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ p++;
|
|
|
+
|
|
|
+ /* check if requested device exists */
|
|
|
+ if (mtd_device_validate(type, num, &size) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ /* locate <mtd-id> */
|
|
|
+ mtd_id = p;
|
|
|
+ if ((p = strchr(mtd_id, ',')) != NULL) {
|
|
|
+ mtd_id_len = p - mtd_id + 1;
|
|
|
+ p++;
|
|
|
+ } else {
|
|
|
+ mtd_id_len = strlen(mtd_id) + 1;
|
|
|
+ }
|
|
|
+ if (mtd_id_len == 0) {
|
|
|
+ printf("mtdids: no <mtd-id> identifier\n");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check if this id is already on the list */
|
|
|
+ int double_entry = 0;
|
|
|
+ list_for_each(entry, &mtdids) {
|
|
|
+ id_tmp = list_entry(entry, struct mtdids, link);
|
|
|
+ if ((id_tmp->type == type) && (id_tmp->num == num)) {
|
|
|
+ double_entry = 1;
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (double_entry) {
|
|
|
+ printf("device id %s%d redefined, please correct mtdids variable\n",
|
|
|
+ MTD_DEV_TYPE(type), num);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* allocate mtdids structure */
|
|
|
+ if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
|
|
|
+ printf("out of memory\n");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
|
|
|
+ id->num = num;
|
|
|
+ id->type = type;
|
|
|
+ id->size = size;
|
|
|
+ id->mtd_id = (char *)(id + 1);
|
|
|
+ strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
|
|
|
+ id->mtd_id[mtd_id_len - 1] = '\0';
|
|
|
+ INIT_LIST_HEAD(&id->link);
|
|
|
+
|
|
|
+ DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
|
|
|
+ MTD_DEV_TYPE(id->type), id->num,
|
|
|
+ id->size, id->mtd_id);
|
|
|
+
|
|
|
+ list_add_tail(&id->link, &mtdids);
|
|
|
+ ret = 0;
|
|
|
+ }
|
|
|
+ if (ret == 1) {
|
|
|
+ /* clean mtdids list and free allocated memory */
|
|
|
+ list_for_each_safe(entry, n, &mtdids) {
|
|
|
+ id_tmp = list_entry(entry, struct mtdids, link);
|
|
|
+ list_del(entry);
|
|
|
+ free(id_tmp);
|
|
|
+ }
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parse and initialize global mtdids mapping and create global
|
|
|
+ * device/partition list.
|
|
|
+ *
|
|
|
+ * @return 0 on success, 1 otherwise
|
|
|
+ */
|
|
|
+int mtdparts_init(void)
|
|
|
+{
|
|
|
+ static int initialized = 0;
|
|
|
+ const char *ids, *parts;
|
|
|
+ const char *current_partition;
|
|
|
+ int ids_changed;
|
|
|
+ char tmp_ep[PARTITION_MAXLEN];
|
|
|
+
|
|
|
+ DEBUGF("\n---mtdparts_init---\n");
|
|
|
+ if (!initialized) {
|
|
|
+ INIT_LIST_HEAD(&mtdids);
|
|
|
+ INIT_LIST_HEAD(&devices);
|
|
|
+ memset(last_ids, 0, MTDIDS_MAXLEN);
|
|
|
+ memset(last_parts, 0, MTDPARTS_MAXLEN);
|
|
|
+ memset(last_partition, 0, PARTITION_MAXLEN);
|
|
|
+ initialized = 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* get variables */
|
|
|
+ ids = getenv("mtdids");
|
|
|
+ parts = getenv("mtdparts");
|
|
|
+ current_partition = getenv("partition");
|
|
|
+
|
|
|
+ /* save it for later parsing, cannot rely on current partition pointer
|
|
|
+ * as 'partition' variable may be updated during init */
|
|
|
+ tmp_ep[0] = '\0';
|
|
|
+ if (current_partition)
|
|
|
+ strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
|
|
|
+
|
|
|
+ DEBUGF("last_ids : %s\n", last_ids);
|
|
|
+ DEBUGF("env_ids : %s\n", ids);
|
|
|
+ DEBUGF("last_parts: %s\n", last_parts);
|
|
|
+ DEBUGF("env_parts : %s\n\n", parts);
|
|
|
+
|
|
|
+ DEBUGF("last_partition : %s\n", last_partition);
|
|
|
+ DEBUGF("env_partition : %s\n", current_partition);
|
|
|
+
|
|
|
+ /* if mtdids varible is empty try to use defaults */
|
|
|
+ if (!ids) {
|
|
|
+ if (mtdids_default) {
|
|
|
+ DEBUGF("mtdids variable not defined, using default\n");
|
|
|
+ ids = mtdids_default;
|
|
|
+ setenv("mtdids", (char *)ids);
|
|
|
+ } else {
|
|
|
+ printf("mtdids not defined, no default present\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ if (strlen(ids) > MTDIDS_MAXLEN - 1) {
|
|
|
+ printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* do no try to use defaults when mtdparts variable is not defined,
|
|
|
+ * just check the length */
|
|
|
+ if (!parts)
|
|
|
+ printf("mtdparts variable not set, see 'help mtdparts'\n");
|
|
|
+
|
|
|
+ if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
|
|
|
+ printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* check if we have already parsed those mtdids */
|
|
|
+ if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
|
|
|
+ ids_changed = 0;
|
|
|
+ } else {
|
|
|
+ ids_changed = 1;
|
|
|
+
|
|
|
+ if (parse_mtdids(ids) != 0) {
|
|
|
+ mtd_devices_init();
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* ok it's good, save new ids */
|
|
|
+ strncpy(last_ids, ids, MTDIDS_MAXLEN);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* parse partitions if either mtdparts or mtdids were updated */
|
|
|
+ if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
|
|
|
+ if (parse_mtdparts(parts) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if (list_empty(&devices)) {
|
|
|
+ printf("mtdparts_init: no valid partitions\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* ok it's good, save new parts */
|
|
|
+ strncpy(last_parts, parts, MTDPARTS_MAXLEN);
|
|
|
+
|
|
|
+ /* reset first partition from first dev from the list as current */
|
|
|
+ current_dev = list_entry(devices.next, struct mtd_device, link);
|
|
|
+ current_partnum = 0;
|
|
|
+ current_save();
|
|
|
+
|
|
|
+ DEBUGF("mtdparts_init: current_dev = %s%d, current_partnum = %d\n",
|
|
|
+ MTD_DEV_TYPE(current_dev->id->type),
|
|
|
+ current_dev->id->num, current_partnum);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* mtdparts variable was reset to NULL, delete all devices/partitions */
|
|
|
+ if (!parts && (last_parts[0] != '\0'))
|
|
|
+ return mtd_devices_init();
|
|
|
+
|
|
|
+ /* do not process current partition if mtdparts variable is null */
|
|
|
+ if (!parts)
|
|
|
+ return 0;
|
|
|
+
|
|
|
+ /* is current partition set in environment? if so, use it */
|
|
|
+ if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
|
|
|
+ struct part_info *p;
|
|
|
+ struct mtd_device *cdev;
|
|
|
+ u8 pnum;
|
|
|
+
|
|
|
+ DEBUGF("--- getting current partition: %s\n", tmp_ep);
|
|
|
+
|
|
|
+ if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
|
|
|
+ current_dev = cdev;
|
|
|
+ current_partnum = pnum;
|
|
|
+ current_save();
|
|
|
+ }
|
|
|
+ } else if (getenv("partition") == NULL) {
|
|
|
+ DEBUGF("no partition variable set, setting...\n");
|
|
|
+ current_save();
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * 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* mtd_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--- mtd_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 */
|
|
|
+/***************************************************/
|
|
|
+/* command line only */
|
|
|
+/**
|
|
|
+ * Routine implementing u-boot chpart command. Sets new current partition based
|
|
|
+ * on the user supplied partition id. For partition id format see find_dev_and_part().
|
|
|
+ *
|
|
|
+ * @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_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
|
|
+{
|
|
|
+/* command line only */
|
|
|
+ struct mtd_device *dev;
|
|
|
+ struct part_info *part;
|
|
|
+ u8 pnum;
|
|
|
+
|
|
|
+ if (mtdparts_init() !=0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if (argc < 2) {
|
|
|
+ printf("no partition id specified\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ current_dev = dev;
|
|
|
+ current_partnum = pnum;
|
|
|
+ current_save();
|
|
|
+
|
|
|
+ printf("partition changed to %s%d,%d\n",
|
|
|
+ MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Routine implementing u-boot mtdparts command. Initialize/update default global
|
|
|
+ * partition list and process user partition request (list, add, del).
|
|
|
+ *
|
|
|
+ * @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_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
|
|
|
+{
|
|
|
+ if (argc == 2) {
|
|
|
+ if (strcmp(argv[1], "default") == 0) {
|
|
|
+ setenv("mtdids", (char *)mtdids_default);
|
|
|
+ setenv("mtdparts", (char *)mtdparts_default);
|
|
|
+ setenv("partition", NULL);
|
|
|
+
|
|
|
+ mtdparts_init();
|
|
|
+ return 0;
|
|
|
+ } else if (strcmp(argv[1], "delall") == 0) {
|
|
|
+ /* this may be the first run, initialize lists if needed */
|
|
|
+ mtdparts_init();
|
|
|
+
|
|
|
+ setenv("mtdparts", NULL);
|
|
|
+
|
|
|
+ /* mtd_devices_init() calls current_save() */
|
|
|
+ return mtd_devices_init();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /* make sure we are in sync with env variables */
|
|
|
+ if (mtdparts_init() != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if (argc == 1) {
|
|
|
+ list_partitions();
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
|
|
|
+ if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
|
|
|
+#define PART_ADD_DESC_MAXLEN 64
|
|
|
+ char tmpbuf[PART_ADD_DESC_MAXLEN];
|
|
|
+ u8 type, num, len;
|
|
|
+ struct mtd_device *dev;
|
|
|
+ struct mtd_device *dev_tmp;
|
|
|
+ struct mtdids *id;
|
|
|
+ struct part_info *p;
|
|
|
+
|
|
|
+ if (mtd_id_parse(argv[2], NULL, &type, &num) != 0)
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ if ((id = id_find(type, num)) == NULL) {
|
|
|
+ printf("no such device %s defined in mtdids variable\n", argv[2]);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
|
|
|
+ len += strlen(argv[3]); /* size@offset */
|
|
|
+ len += strlen(argv[4]) + 2; /* '(' name ')' */
|
|
|
+ if (argv[5] && (strlen(argv[5]) == 2))
|
|
|
+ len += 2; /* 'ro' */
|
|
|
+
|
|
|
+ if (len >= PART_ADD_DESC_MAXLEN) {
|
|
|
+ printf("too long partition description\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ sprintf(tmpbuf, "%s:%s(%s)%s",
|
|
|
+ id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
|
|
|
+ DEBUGF("add tmpbuf: %s\n", tmpbuf);
|
|
|
+
|
|
|
+ if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
|
|
|
+ return 1;
|
|
|
+
|
|
|
+ DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
|
|
|
+ dev->id->num, dev->id->mtd_id);
|
|
|
+
|
|
|
+ if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
|
|
|
+ device_add(dev);
|
|
|
+ } else {
|
|
|
+ /* merge new partition with existing ones*/
|
|
|
+ p = list_entry(dev->parts.next, struct part_info, link);
|
|
|
+ if (part_add(dev_tmp, p) != 0) {
|
|
|
+ device_del(dev);
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
|
|
|
+ printf("generated mtdparts too long, reseting to null\n");
|
|
|
+ return 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ return 0;
|
|
|
+ }
|
|
|
+
|
|
|
+ /* mtdparts del part-id */
|
|
|
+ if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
|
|
|
+ DEBUGF("del: part-id = %s\n", argv[2]);
|
|
|
+
|
|
|
+ return delete_partition(argv[2]);
|
|
|
+ }
|
|
|
+
|
|
|
+ cmd_usage(cmdtp);
|
|
|
+ return 1;
|
|
|
+}
|
|
|
+
|
|
|
+/***************************************************/
|
|
|
+U_BOOT_CMD(
|
|
|
+ chpart, 2, 0, do_chpart,
|
|
|
+ "change active partition",
|
|
|
+ "part-id\n"
|
|
|
+ " - change active partition (e.g. part-id = nand0,1)\n"
|
|
|
+);
|
|
|
+
|
|
|
+U_BOOT_CMD(
|
|
|
+ mtdparts, 6, 0, do_mtdparts,
|
|
|
+ "define flash/nand partitions",
|
|
|
+ "\n"
|
|
|
+ " - list partition table\n"
|
|
|
+ "mtdparts delall\n"
|
|
|
+ " - delete all partitions\n"
|
|
|
+ "mtdparts del part-id\n"
|
|
|
+ " - delete partition (e.g. part-id = nand0,1)\n"
|
|
|
+ "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
|
|
|
+ " - add partition\n"
|
|
|
+ "mtdparts default\n"
|
|
|
+ " - reset partition table to defaults\n\n"
|
|
|
+ "-----\n\n"
|
|
|
+ "this command uses three environment variables:\n\n"
|
|
|
+ "'partition' - keeps current partition identifier\n\n"
|
|
|
+ "partition := <part-id>\n"
|
|
|
+ "<part-id> := <dev-id>,part_num\n\n"
|
|
|
+ "'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
|
|
|
+ "mtdids=<idmap>[,<idmap>,...]\n\n"
|
|
|
+ "<idmap> := <dev-id>=<mtd-id>\n"
|
|
|
+ "<dev-id> := 'nand'|'nor'|'onenand'<dev-num>\n"
|
|
|
+ "<dev-num> := mtd device number, 0...\n"
|
|
|
+ "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
|
|
|
+ "'mtdparts' - partition list\n\n"
|
|
|
+ "mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
|
|
|
+ "<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
|
|
|
+ "<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
|
|
|
+ "<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
|
|
|
+ "<size> := standard linux memsize OR '-' to denote all remaining space\n"
|
|
|
+ "<offset> := partition start offset within the device\n"
|
|
|
+ "<name> := '(' NAME ')'\n"
|
|
|
+ "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)\n"
|
|
|
+);
|
|
|
+/***************************************************/
|
Stefan Roese