UBI: Add basic UBI support to U-Boot (Part 6/8)

This patch adds basic UBI (Unsorted Block Image) support to U-Boot.
It's based on the Linux UBI version and basically has a "OS"
translation wrapper that defines most Linux specific calls
(spin_lock() etc.) into no-ops. Some source code parts have been
uncommented by "#ifdef UBI_LINUX". This makes it easier to compare
this version with the Linux version and simplifies future UBI
ports/bug-fixes from the Linux version.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Stefan Roese <sr@denx.de>

3 files changed, 135 insertions, 0 deletions

diff --git a/include/linux/crc32.h b/include/linux/crc32.h
new file mode 100644
index 0000000..e133157
--- /dev/null
+++ b/include/linux/crc32.h
@@ -0,0 +1,27 @@
+/*
+ * crc32.h
+ * See linux/lib/crc32.c for license and changes
+ */
+#ifndef _LINUX_CRC32_H
+#define _LINUX_CRC32_H
+
+#include <linux/types.h>
+//#include <linux/bitrev.h>
+
+extern u32  crc32_le(u32 crc, unsigned char const *p, size_t len);
+//extern u32  crc32_be(u32 crc, unsigned char const *p, size_t len);
+
+#define crc32(seed, data, length)  crc32_le(seed, (unsigned char const *)data, length)
+
+/*
+ * Helpers for hash table generation of ethernet nics:
+ *
+ * Ethernet sends the least significant bit of a byte first, thus crc32_le
+ * is used. The output of crc32_le is bit reversed [most significant bit
+ * is in bit nr 0], thus it must be reversed before use. Except for
+ * nics that bit swap the result internally...
+ */
+//#define ether_crc(length, data)    bitrev32(crc32_le(~0, data, length))
+//#define ether_crc_le(length, data) crc32_le(~0, data, length)
+
+#endif /* _LINUX_CRC32_H */
diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h
new file mode 100644
index 0000000..b41e5f5
--- /dev/null
+++ b/include/linux/mtd/partitions.h
@@ -0,0 +1,84 @@
+/*
+ * MTD partitioning layer definitions
+ *
+ * (C) 2000 Nicolas Pitre <nico@cam.org>
+ *
+ * This code is GPL
+ *
+ * $Id: partitions.h,v 1.17 2005/11/07 11:14:55 gleixner 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_ecclayout *ecclayout;	/* 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 *);
+
+#if 0
+/*
+ * 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)
+
+struct device;
+struct device_node;
+
+int __devinit of_mtd_parse_partitions(struct device *dev,
+                                      struct mtd_info *mtd,
+                                      struct device_node *node,
+                                      struct mtd_partition **pparts);
+#endif
+
+#endif
diff --git a/include/linux/types.h b/include/linux/types.h
index df4808f..1b0b4a4 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -119,6 +119,30 @@ typedef		__s64		int64_t;
  * Below are truly Linux-specific types that should never collide with
  * any application/library that wants linux/types.h.
  */
+#ifdef __CHECKER__
+#define __bitwise__ __attribute__((bitwise))
+#else
+#define __bitwise__
+#endif
+#ifdef __CHECK_ENDIAN__
+#define __bitwise __bitwise__
+#else
+#define __bitwise
+#endif
+
+typedef __u16 __bitwise __le16;
+typedef __u16 __bitwise __be16;
+typedef __u32 __bitwise __le32;
+typedef __u32 __bitwise __be32;
+#if defined(__GNUC__)
+typedef __u64 __bitwise __le64;
+typedef __u64 __bitwise __be64;
+#endif
+typedef __u16 __bitwise __sum16;
+typedef __u32 __bitwise __wsum;
+
+
+typedef unsigned __bitwise__	gfp_t;
 
 struct ustat {
 	__kernel_daddr_t	f_tfree;