release/src-rt-6.x.4708/linux/linux-2.6.36/include/linux/mtd/physmap.h

   1 /*
   2  * For boards with physically mapped flash and using
   3  * drivers/mtd/maps/physmap.c mapping driver.
   4  *
   5  * Copyright (C) 2003 MontaVista Software Inc.
   6  * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  *
  13  */
  14
  15 #ifndef __LINUX_MTD_PHYSMAP__
  16 #define __LINUX_MTD_PHYSMAP__
  17
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/partitions.h>
  20
  21 struct map_info;
  22
  23 struct physmap_flash_data {
  24         unsigned int            width;
  25         void                    (*set_vpp)(struct map_info *, int);
  26         unsigned int            nr_parts;
  27         unsigned int            pfow_base;
  28         char                    *probe_type;
  29         struct mtd_partition    *parts;
  30 };
  31
  32 /*
  33  * Board needs to specify the exact mapping during their setup time.
  34  */
  35 void physmap_configure(unsigned long addr, unsigned long size,
  36                 int bankwidth, void (*set_vpp)(struct map_info *, int) );
  37
  38 #ifdef CONFIG_MTD_PARTITIONS
  39
  40 /*
  41  * Machines that wish to do flash partition may want to call this function in
  42  * their setup routine.
  43  *
  44  *      physmap_set_partitions(mypartitions, num_parts);
  45  *
  46  * Note that one can always override this hard-coded partition with
  47  * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
  48  */
  49 void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
  50
  51 #endif /* defined(CONFIG_MTD_PARTITIONS) */
  52
  53 #endif /* __LINUX_MTD_PHYSMAP__ */