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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_AXISFLASHMAP_H
2#define __ASM_AXISFLASHMAP_H
3
4/* Bootblock parameters are stored at 0xc000 and has the FLASH_BOOT_MAGIC
5 * as start, it ends with 0xFFFFFFFF */
6#define FLASH_BOOT_MAGIC 0xbeefcace
7#define BOOTPARAM_OFFSET 0xc000
8/* apps/bootblocktool is used to read and write the parameters,
9 * and it has nothing to do with the partition table.
10 */
11
12#define PARTITION_TABLE_OFFSET 10
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010013#define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */
Linus Torvalds1da177e2005-04-16 15:20:36 -070014
15/* The partitiontable_head is located at offset +10: */
16struct partitiontable_head {
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010017 __u16 magic; /* PARTITION_TABLE_MAGIC */
18 __u16 size; /* Length of ptable block (entries + end marker) */
19 __u32 checksum; /* simple longword sum, over entries + end marker */
Linus Torvalds1da177e2005-04-16 15:20:36 -070020};
21
22/* And followed by partition table entries */
23struct partitiontable_entry {
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010024 __u32 offset; /* relative to the sector the ptable is in */
25 __u32 size; /* in bytes */
26 __u32 checksum; /* simple longword sum */
27 __u16 type; /* see type codes below */
28 __u16 flags; /* bit 0: ro/rw = 1/0 */
29 __u32 future0; /* 16 bytes reserved for future use */
Linus Torvalds1da177e2005-04-16 15:20:36 -070030 __u32 future1;
31 __u32 future2;
32 __u32 future3;
33};
34/* ended by an end marker: */
35#define PARTITIONTABLE_END_MARKER 0xFFFFFFFF
36#define PARTITIONTABLE_END_MARKER_SIZE 4
37
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010038#define PARTITIONTABLE_END_PAD 10
39
40/* Complete structure for whole partition table */
41/* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting
42 * offset of the last entry + 1 to PARTITIONTABLE_END_MARKER.
43 */
44struct partitiontable {
45 __u8 skip[PARTITION_TABLE_OFFSET];
46 struct partitiontable_head head;
47 struct partitiontable_entry entries[];
48};
49
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#define PARTITION_TYPE_PARAM 0x0001
51#define PARTITION_TYPE_KERNEL 0x0002
52#define PARTITION_TYPE_JFFS 0x0003
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010053#define PARTITION_TYPE_JFFS2 0x0000
54
55#define PARTITION_FLAGS_READONLY_MASK 0x0001
56#define PARTITION_FLAGS_READONLY 0x0001
Linus Torvalds1da177e2005-04-16 15:20:36 -070057
Mikael Starvik7cf32ca2005-07-27 11:44:38 -070058/* The master mtd for the entire flash. */
Jesper Nilsson0c2efc42007-11-29 17:58:06 +010059extern struct mtd_info *axisflash_mtd;
Mikael Starvik7cf32ca2005-07-27 11:44:38 -070060
Linus Torvalds1da177e2005-04-16 15:20:36 -070061#endif