arch/sandbox/include/asm/io.h

   1 /*
   2  * Copyright (c) 2011 The Chromium OS Authors.
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 /*
  24  * Given a physical address and a length, return a virtual address
  25  * that can be used to access the memory range with the caching
  26  * properties specified by "flags".
  27  */
  28 #define MAP_NOCACHE     (0)
  29 #define MAP_WRCOMBINE   (0)
  30 #define MAP_WRBACK      (0)
  31 #define MAP_WRTHROUGH   (0)
  32
  33 void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags);
  34
  35 /*
  36  * Take down a mapping set up by map_physmem().
  37  */
  38 static inline void unmap_physmem(void *vaddr, unsigned long flags)
  39 {
  40
  41 }