release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-clps711x/autcpu12.c

   1 /*
   2  *  linux/arch/arm/mach-clps711x/autcpu12.c
   3  *
   4  * (c) 2001 Thomas Gleixner, autronix automation <gleixner@autronix.de>
   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 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/types.h>
  23 #include <linux/string.h>
  24 #include <linux/mm.h>
  25 #include <linux/io.h>
  26
  27 #include <mach/hardware.h>
  28 #include <asm/sizes.h>
  29 #include <asm/setup.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/pgtable.h>
  33 #include <asm/page.h>
  34
  35 #include <asm/mach/map.h>
  36 #include <mach/autcpu12.h>
  37
  38 #include "common.h"
  39
  40 /*
  41  * The on-chip registers are given a size of 1MB so that a section can
  42  * be used to map them; this saves a page table.  This is the place to
  43  * add mappings for ROM, expansion memory, PCMCIA, etc.  (if static
  44  * mappings are chosen for those areas).
  45  *
  46 */
  47
  48 static struct map_desc autcpu12_io_desc[] __initdata = {
  49         /* memory-mapped extra io and CS8900A Ethernet chip */
  50         /* ethernet chip */
  51         {
  52                 .virtual        = AUTCPU12_VIRT_CS8900A,
  53                 .pfn            = __phys_to_pfn(AUTCPU12_PHYS_CS8900A),
  54                 .length         = SZ_1M,
  55                 .type           = MT_DEVICE
  56         }
  57 };
  58
  59 void __init autcpu12_map_io(void)
  60 {
  61         clps711x_map_io();
  62         iotable_init(autcpu12_io_desc, ARRAY_SIZE(autcpu12_io_desc));
  63 }
  64
  65 MACHINE_START(AUTCPU12, "autronix autcpu12")
  66         /* Maintainer: Thomas Gleixner */
  67         .phys_io        = 0x80000000,
  68         .io_pg_offst    = ((0xff000000) >> 18) & 0xfffc,
  69         .boot_params    = 0xc0020000,
  70         .map_io         = autcpu12_map_io,
  71         .init_irq       = clps711x_init_irq,
  72         .timer          = &clps711x_timer,
  73 MACHINE_END