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CRIS: Merge axisflashmap.h with Axis internal changes.

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- Add partition table struct to be used to parse partition table in flash.
- Add JFFS2 as a type, and add readoly flag.
- Improve some comments.
- Lindent has been run, fixing whitespace and formatting issues.
This commit is contained in:
Jesper Nilsson 2007-11-29 17:58:06 +01:00
parent e908dfc3c0
commit 0c2efc4848
1 changed files with 27 additions and 12 deletions
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39
include/asm-cris/axisflashmap.h
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@ -10,23 +10,23 @@
*/
#define PARTITION_TABLE_OFFSET 10
#define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */
#define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */
/* The partitiontable_head is located at offset +10: */
struct partitiontable_head {
__u16 magic; /* PARTITION_TABLE_MAGIC */
__u16 size; /* Length of ptable block (not header) */
__u32 checksum; /* simple longword sum */
__u16 magic; /* PARTITION_TABLE_MAGIC */
__u16 size; /* Length of ptable block (entries + end marker) */
__u32 checksum; /* simple longword sum, over entries + end marker */
};
/* And followed by partition table entries */
struct partitiontable_entry {
__u32 offset; /* Offset is relative to the sector the ptable is in */
__u32 size;
__u32 checksum; /* simple longword sum */
__u16 type;
__u16 flags; /* bit 0: ro/rw = 1/0 */
__u32 future0; /* 16 bytes reserved for future use */
__u32 offset; /* relative to the sector the ptable is in */
__u32 size; /* in bytes */
__u32 checksum; /* simple longword sum */
__u16 type; /* see type codes below */
__u16 flags; /* bit 0: ro/rw = 1/0 */
__u32 future0; /* 16 bytes reserved for future use */
__u32 future1;
__u32 future2;
__u32 future3;
@ -35,12 +35,27 @@ struct partitiontable_entry {
#define PARTITIONTABLE_END_MARKER 0xFFFFFFFF
#define PARTITIONTABLE_END_MARKER_SIZE 4
/*#define PARTITION_TYPE_RESCUE 0x0000?*/ /* Not used, maybe it should? */
#define PARTITIONTABLE_END_PAD 10
/* Complete structure for whole partition table */
/* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting
* offset of the last entry + 1 to PARTITIONTABLE_END_MARKER.
*/
struct partitiontable {
__u8 skip[PARTITION_TABLE_OFFSET];
struct partitiontable_head head;
struct partitiontable_entry entries[];
};
#define PARTITION_TYPE_PARAM 0x0001
#define PARTITION_TYPE_KERNEL 0x0002
#define PARTITION_TYPE_JFFS 0x0003
#define PARTITION_TYPE_JFFS2 0x0000
#define PARTITION_FLAGS_READONLY_MASK 0x0001
#define PARTITION_FLAGS_READONLY 0x0001
/* The master mtd for the entire flash. */
extern struct mtd_info* axisflash_mtd;
extern struct mtd_info *axisflash_mtd;
#endif