diff options
Diffstat (limited to 'arch/cris/include/asm/axisflashmap.h')
| -rw-r--r-- | arch/cris/include/asm/axisflashmap.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/cris/include/asm/axisflashmap.h b/arch/cris/include/asm/axisflashmap.h new file mode 100644 index 000000000000..015ca5445ddd --- /dev/null +++ b/arch/cris/include/asm/axisflashmap.h | |||
| @@ -0,0 +1,61 @@ | |||
| 1 | #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 | ||
| 13 | #define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */ | ||
| 14 | |||
| 15 | /* The partitiontable_head is located at offset +10: */ | ||
| 16 | struct partitiontable_head { | ||
| 17 | __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 */ | ||
| 20 | }; | ||
| 21 | |||
| 22 | /* And followed by partition table entries */ | ||
| 23 | struct partitiontable_entry { | ||
| 24 | __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 */ | ||
| 30 | __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 | |||
| 38 | #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 | */ | ||
| 44 | struct partitiontable { | ||
| 45 | __u8 skip[PARTITION_TABLE_OFFSET]; | ||
| 46 | struct partitiontable_head head; | ||
| 47 | struct partitiontable_entry entries[]; | ||
| 48 | }; | ||
| 49 | |||
| 50 | #define PARTITION_TYPE_PARAM 0x0001 | ||
| 51 | #define PARTITION_TYPE_KERNEL 0x0002 | ||
| 52 | #define PARTITION_TYPE_JFFS 0x0003 | ||
| 53 | #define PARTITION_TYPE_JFFS2 0x0000 | ||
| 54 | |||
| 55 | #define PARTITION_FLAGS_READONLY_MASK 0x0001 | ||
| 56 | #define PARTITION_FLAGS_READONLY 0x0001 | ||
| 57 | |||
| 58 | /* The master mtd for the entire flash. */ | ||
| 59 | extern struct mtd_info *axisflash_mtd; | ||
| 60 | |||
| 61 | #endif | ||
