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TOMOYO Linux Cross Reference
Linux/arch/cris/include/asm/axisflashmap.h

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  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 

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