release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-imx/mm-imx1.c

   1 /*
   2  *  author: Sascha Hauer
   3  *  Created: april 20th, 2004
   4  *  Copyright: Synertronixx GmbH
   5  *
   6  *  Common code for i.MX1 machines
   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 #include <linux/kernel.h>
  19 #include <linux/init.h>
  20 #include <linux/io.h>
  21
  22 #include <asm/mach/map.h>
  23
  24 #include <mach/common.h>
  25 #include <mach/hardware.h>
  26
  27 static struct map_desc imx_io_desc[] __initdata = {
  28         {
  29                 .virtual = MX1_IO_BASE_ADDR_VIRT,
  30                 .pfn = __phys_to_pfn(MX1_IO_BASE_ADDR),
  31                 .length = MX1_IO_SIZE,
  32                 .type = MT_DEVICE
  33         }
  34 };
  35
  36 void __init mx1_map_io(void)
  37 {
  38         mxc_set_cpu_type(MXC_CPU_MX1);
  39         mxc_arch_reset_init(MX1_IO_ADDRESS(MX1_WDT_BASE_ADDR));
  40
  41         iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
  42 }
  43
  44 int imx1_register_gpios(void);
  45
  46 void __init mx1_init_irq(void)
  47 {
  48         mxc_init_irq(MX1_IO_ADDRESS(MX1_AVIC_BASE_ADDR));
  49         imx1_register_gpios();
  50 }