axisflashmap.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:2k
- #ifndef __ASM_AXISFLASHMAP_H
- #define __ASM_AXISFLASHMAP_H
- /* Bootblock parameters are stored at 0xc000 and has the FLASH_BOOT_MAGIC
- * as start, it ends with 0xFFFFFFFF */
- #define FLASH_BOOT_MAGIC 0xbeefcace
- #define BOOTPARAM_OFFSET 0xc000
- /* apps/bootblocktool is used to read and write the parameters,
- * and it has nothing to do with the partition table.
- */
- /* the partitiontable consists of some "jump over" code, a head and
- * then the actual entries.
- * tools/mkptable is used to generate the ptable.
- */
- /* The partition table starts with code to "jump over" it. The ba
- instruction and delay-slot is modified elsewhere (for example the
- mkptable script); don't change this to fill the delay-slot. */
- #define PARTITIONTABLE_CODE_START {
- 0x0f, 0x05, /* nop 0 */
- 0x25, 0xf0, /* di 2 */
- 0xed, 0xff /* ba 4 */ }
- /* The actual offset depend on the number of entries */
- #define PARTITIONTABLE_CODE_END {
- 0x00, 0x00, /* ba offset 6 */
- 0x0f, 0x05 /* nop 8 */}
- #define PARTITION_TABLE_OFFSET 10
- #define PARTITION_TABLE_MAGIC 0xbeef /* Not a good magic */
- /* The partitiontable_head is located at offset +10: */
- struct partitiontable_head {
- __u16 magic; /* PARTITION_TABLE_MAGIC */
- __u16 size; /* Length of ptable block (not header) */
- __u32 checksum; /* simple longword sum */
- };
- /* And followed by partition table entries */
- struct partitiontable_entry {
- __u32 offset; /* Offset is relative to the sector the ptable is in */
- __u32 size;
- __u32 checksum; /* simple longword sum */
- __u16 type;
- __u16 flags; /* bit 0: ro/rw = 1/0 */
- __u32 future0; /* 16 bytes reserved for future use */
- __u32 future1;
- __u32 future2;
- __u32 future3;
- };
- /* ended by an end marker: */
- #define PARTITIONTABLE_END_MARKER 0xFFFFFFFF
- #define PARTITIONTABLE_END_MARKER_SIZE 4
- /*#define PARTITION_TYPE_RESCUE 0x0000?*/ /* Not used, maybe it should? */
- #define PARTITION_TYPE_PARAM 0x0001
- #define PARTITION_TYPE_KERNEL 0x0002
- #define PARTITION_TYPE_JFFS 0x0003
- #endif