arch/arm/mach-realview/include/mach/hardware.h

   1 /*
   2  *  arch/arm/mach-realview/include/mach/hardware.h
   3  *
   4  *  This file contains the hardware definitions of the RealView boards.
   5  *
   6  *  Copyright (C) 2003 ARM Limited.
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22 #ifndef __ASM_ARCH_HARDWARE_H
  23 #define __ASM_ARCH_HARDWARE_H
  24
  25 #include <asm/sizes.h>
  26
  27 /* macro to get at IO space when running virtually */
  28 #ifdef CONFIG_MMU
  29 /*
  30  * Statically mapped addresses:
  31  *
  32  * 10xx xxxx -> fbxx xxxx
  33  * 1exx xxxx -> fdxx xxxx
  34  * 1fxx xxxx -> fexx xxxx
  35  */
  36 #define IO_ADDRESS(x)           (((x) & 0x03ffffff) + 0xfb000000)
  37 #else
  38 #define IO_ADDRESS(x)           (x)
  39 #endif
  40 #define __io_address(n)         __io(IO_ADDRESS(n))
  41
  42 #endif