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kernel/linux-rt-4.4.41/arch/cris/include/asm/axisflashmap.h 1.89 KB
5113f6f70   김현기   kernel add
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  #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. 
   */
  
  #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 (entries + end marker) */
  	__u32 checksum;	/* simple longword sum, over entries + end marker  */
  };
  
  /* And followed by partition table entries */
  struct partitiontable_entry {
  	__u32 offset;		/* relative to the sector the ptable is in */
  	__u32 size;		/* in bytes */
  	__u32 checksum;		/* simple longword sum */
  	__u16 type;		/* see type codes below */
  	__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 PARTITIONTABLE_END_PAD	10
  
  /* Complete structure for whole partition table */
  /* note that table may end before CONFIG_ETRAX_PTABLE_ENTRIES by setting
   * offset of the last entry + 1 to PARTITIONTABLE_END_MARKER.
   */
  struct partitiontable {
  	__u8 skip[PARTITION_TABLE_OFFSET];
  	struct partitiontable_head head;
  	struct partitiontable_entry entries[];
  };
  
  #define PARTITION_TYPE_PARAM  0x0001
  #define PARTITION_TYPE_KERNEL 0x0002
  #define PARTITION_TYPE_JFFS   0x0003
  #define PARTITION_TYPE_JFFS2  0x0000
  
  #define	PARTITION_FLAGS_READONLY_MASK	0x0001
  #define	PARTITION_FLAGS_READONLY	0x0001
  
  /* The master mtd for the entire flash. */
  extern struct mtd_info *axisflash_mtd;
  
  #endif