arch/arm/mach-mxc91231/mm.c

   1 /*
   2  *  Copyright (C) 1999,2000 Arm Limited
   3  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   4  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   5  *  Copyright 2004-2005 Freescale Semiconductor, Inc. All Rights Reserved.
   6  *    - add MXC specific definitions
   7  *  Copyright 2006 Motorola, Inc.
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  */
  19
  20 #include <linux/mm.h>
  21 #include <linux/init.h>
  22 #include <mach/hardware.h>
  23 #include <mach/common.h>
  24 #include <asm/pgtable.h>
  25 #include <asm/mach/map.h>
  26
  27 /*
  28  * This structure defines the MXC memory map.
  29  */
  30 static struct map_desc mxc91231_io_desc[] __initdata = {
  31         imx_map_entry(MXC91231, L2CC, MT_DEVICE),
  32         imx_map_entry(MXC91231, X_MEMC, MT_DEVICE),
  33         imx_map_entry(MXC91231, ROMP, MT_DEVICE),
  34         imx_map_entry(MXC91231, AVIC, MT_DEVICE),
  35         imx_map_entry(MXC91231, AIPS1, MT_DEVICE),
  36         imx_map_entry(MXC91231, SPBA0, MT_DEVICE),
  37         imx_map_entry(MXC91231, SPBA1, MT_DEVICE),
  38         imx_map_entry(MXC91231, AIPS2, MT_DEVICE),
  39 };
  40
  41 /*
  42  * This function initializes the memory map. It is called during the
  43  * system startup to create static physical to virtual memory map for
  44  * the IO modules.
  45  */
  46 void __init mxc91231_map_io(void)
  47 {
  48         mxc_set_cpu_type(MXC_CPU_MXC91231);
  49
  50         iotable_init(mxc91231_io_desc, ARRAY_SIZE(mxc91231_io_desc));
  51 }
  52
  53 int mxc91231_register_gpios(void);
  54
  55 void __init mxc91231_init_irq(void)
  56 {
  57         mxc91231_register_gpios();
  58         mxc_init_irq(MXC91231_IO_ADDRESS(MXC91231_AVIC_BASE_ADDR));
  59 }