arch/arm/mach-realview/hardware.h

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