1 files changed, 75 insertions, 0 deletions
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
new file mode 100644
index 00000000000..50b2edfc8f1
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+++ b/include/linux/mtd/partitions.h
@@ -0,0 +1,75 @@
+/*
+ * MTD partitioning layer definitions
+ *
+ * (C) 2000 Nicolas Pitre <nico@cam.org>
+ *
+ * This code is GPL
+ *
+ * $Id: partitions.h,v 1.16 2004/11/16 18:34:40 dwmw2 Exp $
+ */
+
+#ifndef MTD_PARTITIONS_H
+#define MTD_PARTITIONS_H
+
+#include <linux/types.h>
+
+
+/*
+ * Partition definition structure:
+ * 
+ * An array of struct partition is passed along with a MTD object to
+ * add_mtd_partitions() to create them.
+ *
+ * For each partition, these fields are available:
+ * name: string that will be used to label the partition's MTD device.
+ * size: the partition size; if defined as MTDPART_SIZ_FULL, the partition 
+ * 	will extend to the end of the master MTD device.
+ * offset: absolute starting position within the master MTD device; if 
+ * 	defined as MTDPART_OFS_APPEND, the partition will start where the 
+ * 	previous one ended; if MTDPART_OFS_NXTBLK, at the next erase block.
+ * mask_flags: contains flags that have to be masked (removed) from the 
+ * 	master MTD flag set for the corresponding MTD partition.
+ * 	For example, to force a read-only partition, simply adding 
+ * 	MTD_WRITEABLE to the mask_flags will do the trick.
+ *
+ * Note: writeable partitions require their size and offset be 
+ * erasesize aligned (e.g. use MTDPART_OFS_NEXTBLK).
+ */ 
+
+struct mtd_partition {
+	char *name;			/* identifier string */
+	u_int32_t size;			/* partition size */
+	u_int32_t offset;		/* offset within the master MTD space */
+	u_int32_t mask_flags;		/* master MTD flags to mask out for this partition */
+	struct nand_oobinfo *oobsel;	/* out of band layout for this partition (NAND only)*/
+	struct mtd_info **mtdp;		/* pointer to store the MTD object */
+};
+
+#define MTDPART_OFS_NXTBLK	(-2)
+#define MTDPART_OFS_APPEND	(-1)
+#define MTDPART_SIZ_FULL	(0)
+
+
+int add_mtd_partitions(struct mtd_info *, const struct mtd_partition *, int);
+int del_mtd_partitions(struct mtd_info *);
+
+/*
+ * Functions dealing with the various ways of partitioning the space
+ */
+
+struct mtd_part_parser {
+	struct list_head list;
+	struct module *owner;
+	const char *name;
+	int (*parse_fn)(struct mtd_info *, struct mtd_partition **, unsigned long);
+};
+
+extern int register_mtd_parser(struct mtd_part_parser *parser);
+extern int deregister_mtd_parser(struct mtd_part_parser *parser);
+extern int parse_mtd_partitions(struct mtd_info *master, const char **types, 
+				struct mtd_partition **pparts, unsigned long origin);
+
+#define put_partition_parser(p) do { module_put((p)->owner); } while(0)
+
+#endif
+