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  * $Id: physmap.h,v 1.3 2004/07/21 00:16:15 jwboyer Exp $
   6  *
   7  * Copyright (C) 2003 MontaVista Software Inc.
   8  * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
   9  *
  10  * This program is free software; you can redistribute  it and/or modify it
  11  * under  the terms of  the GNU General  Public License as published by the
  12  * Free Software Foundation;  either version 2 of the  License, or (at your
  13  * option) any later version.
  14  *
  15  */
  16
  17 #ifndef __LINUX_MTD_PHYSMAP__
  18
  19 #include <linux/config.h>
  20
  21 #if defined(CONFIG_MTD_PHYSMAP)
  22
  23 #include <linux/mtd/mtd.h>
  24 #include <linux/mtd/map.h>
  25 #include <linux/mtd/partitions.h>
  26
  27 /*
  28  * The map_info for physmap.  Board can override size, buswidth, phys,
  29  * (*set_vpp)(), etc in their initial setup routine.
  30  */
  31 extern struct map_info physmap_map;
  32
  33 /*
  34  * Board needs to specify the exact mapping during their setup time.
  35  */
  36 static inline void physmap_configure(unsigned long addr, unsigned long size, int bankwidth, void (*set_vpp)(struct map_info *, int) )
  37 {
  38         physmap_map.phys = addr;
  39         physmap_map.size = size;
  40         physmap_map.bankwidth = bankwidth;
  41         physmap_map.set_vpp = set_vpp;
  42 }
  43
  44 #if defined(CONFIG_MTD_PARTITIONS)
  45
  46 /*
  47  * Machines that wish to do flash partition may want to call this function in
  48  * their setup routine.
  49  *
  50  *      physmap_set_partitions(mypartitions, num_parts);
  51  *
  52  * Note that one can always override this hard-coded partition with
  53  * command line partition (you need to enable CONFIG_MTD_CMDLINE_PARTS).
  54  */
  55 void physmap_set_partitions(struct mtd_partition *parts, int num_parts);
  56
  57 #endif /* defined(CONFIG_MTD_PARTITIONS) */
  58 #endif /* defined(CONFIG_MTD) */
  59
  60 #endif /* __LINUX_MTD_PHYSMAP__ */
  61