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 62