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authorKyungmin Park <kyungmin.park@samsung.com>2008-11-19 16:32:36 +0100
committerStefan Roese <sr@denx.de>2008-11-19 20:34:39 +0100
commit7e6ee7ad27de5216db1baef76f38c3429c8f4a2a (patch)
treefe2108d4ddfea1d8054eefe57740b68036f70644 /include/linux
parentc91a719daa331b5856109313371e4ece5ec06d96 (diff)
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>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/crc32.h27
-rw-r--r--include/linux/mtd/partitions.h84
-rw-r--r--include/linux/types.h24
3 files changed, 135 insertions, 0 deletions
diff --git a/include/linux/crc32.h b/include/linux/crc32.h
new file mode 100644
index 0000000000..e1331571e1
--- /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 0000000000..b41e5f564c
--- /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 df4808fcdf..1b0b4a44c4 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;