LXR linux/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 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  22 *
  23 */
  24
  25#include <linux/mm.h>
  26#include <linux/init.h>
  27#include <mach/hardware.h>
  28#include <mach/common.h>
  29#include <asm/pgtable.h>
  30#include <asm/mach/map.h>
  31
  32/*
  33 * This structure defines the MXC memory map.
  34 */
  35static struct map_desc mxc_io_desc[] __initdata = {
  36        {
  37                .virtual        = MXC91231_L2CC_BASE_ADDR_VIRT,
  38                .pfn            = __phys_to_pfn(MXC91231_L2CC_BASE_ADDR),
  39                .length         = MXC91231_L2CC_SIZE,
  40                .type           = MT_DEVICE,
  41        }, {
  42                .virtual        = MXC91231_X_MEMC_BASE_ADDR_VIRT,
  43                .pfn            = __phys_to_pfn(MXC91231_X_MEMC_BASE_ADDR),
  44                .length         = MXC91231_X_MEMC_SIZE,
  45                .type           = MT_DEVICE,
  46        }, {
  47                .virtual        = MXC91231_ROMP_BASE_ADDR_VIRT,
  48                .pfn            = __phys_to_pfn(MXC91231_ROMP_BASE_ADDR),
  49                .length         = MXC91231_ROMP_SIZE,
  50                .type           = MT_DEVICE,
  51        }, {
  52                .virtual        = MXC91231_AVIC_BASE_ADDR_VIRT,
  53                .pfn            = __phys_to_pfn(MXC91231_AVIC_BASE_ADDR),
  54                .length         = MXC91231_AVIC_SIZE,
  55                .type           = MT_DEVICE,
  56        }, {
  57                .virtual        = MXC91231_AIPS1_BASE_ADDR_VIRT,
  58                .pfn            = __phys_to_pfn(MXC91231_AIPS1_BASE_ADDR),
  59                .length         = MXC91231_AIPS1_SIZE,
  60                .type           = MT_DEVICE,
  61        }, {
  62                .virtual        = MXC91231_SPBA0_BASE_ADDR_VIRT,
  63                .pfn            = __phys_to_pfn(MXC91231_SPBA0_BASE_ADDR),
  64                .length         = MXC91231_SPBA0_SIZE,
  65                .type           = MT_DEVICE,
  66        }, {
  67                .virtual        = MXC91231_SPBA1_BASE_ADDR_VIRT,
  68                .pfn            = __phys_to_pfn(MXC91231_SPBA1_BASE_ADDR),
  69                .length         = MXC91231_SPBA1_SIZE,
  70                .type           = MT_DEVICE,
  71        }, {
  72                .virtual        = MXC91231_AIPS2_BASE_ADDR_VIRT,
  73                .pfn            = __phys_to_pfn(MXC91231_AIPS2_BASE_ADDR),
  74                .length         = MXC91231_AIPS2_SIZE,
  75                .type           = MT_DEVICE,
  76        },
  77};
  78
  79/*
  80 * This function initializes the memory map. It is called during the
  81 * system startup to create static physical to virtual memory map for
  82 * the IO modules.
  83 */
  84void __init mxc91231_map_io(void)
  85{
  86        mxc_set_cpu_type(MXC_CPU_MXC91231);
  87
  88        iotable_init(mxc_io_desc, ARRAY_SIZE(mxc_io_desc));
  89}
  90
  91void __init mxc91231_init_irq(void)
  92{
  93        mxc_init_irq(MXC91231_IO_ADDRESS(MXC91231_AVIC_BASE_ADDR));
  94}
  95