axisflashmap.h 1.9 KB

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