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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __ASM_AXISFLASHMAP_H |
3 | #define __ASM_AXISFLASHMAP_H | |
4 | ||
5 | /* Bootblock parameters are stored at 0xc000 and has the FLASH_BOOT_MAGIC | |
6 | * as start, it ends with 0xFFFFFFFF */ | |
7 | #define FLASH_BOOT_MAGIC 0xbeefcace | |
8 | #define BOOTPARAM_OFFSET 0xc000 | |
9 | /* apps/bootblocktool is used to read and write the parameters, | |
10 | * and it has nothing to do with the partition table. | |
11 | */ | |
12 | ||
13 | #define PARTITION_TABLE_OFFSET 10 | |
0c2efc48 | 14 | #define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */ |
1da177e4 LT |
15 | |
16 | /* The partitiontable_head is located at offset +10: */ | |
17 | struct partitiontable_head { | |
0c2efc48 JN |
18 | __u16 magic; /* PARTITION_TABLE_MAGIC */ |
19 | __u16 size; /* Length of ptable block (entries + end marker) */ | |
20 | __u32 checksum; /* simple longword sum, over entries + end marker */ | |
1da177e4 LT |
21 | }; |
22 | ||
23 | /* And followed by partition table entries */ | |
24 | struct partitiontable_entry { | |
0c2efc48 JN |
25 | __u32 offset; /* relative to the sector the ptable is in */ |
26 | __u32 size; /* in bytes */ | |
27 | __u32 checksum; /* simple longword sum */ | |
28 | __u16 type; /* see type codes below */ | |
29 | __u16 flags; /* bit 0: ro/rw = 1/0 */ | |
30 | __u32 future0; /* 16 bytes reserved for future use */ | |
1da177e4 LT |
31 | __u32 future1; |
32 | __u32 future2; | |
33 | __u32 future3; | |
34 | }; | |
35 | /* ended by an end marker: */ | |
36 | #define PARTITIONTABLE_END_MARKER 0xFFFFFFFF | |
37 | #define PARTITIONTABLE_END_MARKER_SIZE 4 | |
38 | ||
0c2efc48 JN |
39 | #define PARTITIONTABLE_END_PAD 10 |
40 | ||
41 | /* Complete structure for whole partition table */ | |
42 | /* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting | |
43 | * offset of the last entry + 1 to PARTITIONTABLE_END_MARKER. | |
44 | */ | |
45 | struct partitiontable { | |
46 | __u8 skip[PARTITION_TABLE_OFFSET]; | |
47 | struct partitiontable_head head; | |
48 | struct partitiontable_entry entries[]; | |
49 | }; | |
50 | ||
1da177e4 LT |
51 | #define PARTITION_TYPE_PARAM 0x0001 |
52 | #define PARTITION_TYPE_KERNEL 0x0002 | |
53 | #define PARTITION_TYPE_JFFS 0x0003 | |
0c2efc48 JN |
54 | #define PARTITION_TYPE_JFFS2 0x0000 |
55 | ||
56 | #define PARTITION_FLAGS_READONLY_MASK 0x0001 | |
57 | #define PARTITION_FLAGS_READONLY 0x0001 | |
1da177e4 | 58 | |
7cf32cad | 59 | /* The master mtd for the entire flash. */ |
0c2efc48 | 60 | extern struct mtd_info *axisflash_mtd; |
7cf32cad | 61 | |
1da177e4 | 62 | #endif |