arch/arm/mach-mxs/mm.c

   1 /*
   2  * Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * The code contained herein is licensed under the GNU General Public
   5  * License.  You may obtain a copy of the GNU General Public License
   6  * Version 2 or later at the following locations:
   7  *
   8  * http://www.opensource.org/licenses/gpl-license.html
   9  * http://www.gnu.org/copyleft/gpl.html
  10  *
  11  * Create static mapping between physical to virtual memory.
  12  */
  13
  14 #include <linux/mm.h>
  15 #include <linux/init.h>
  16
  17 #include <asm/mach/map.h>
  18
  19 #include <mach/mx23.h>
  20 #include <mach/mx28.h>
  21 #include <mach/common.h>
  22 #include <mach/iomux.h>
  23
  24 /*
  25  * Define the MX23 memory map.
  26  */
  27 static struct map_desc mx23_io_desc[] __initdata = {
  28         mxs_map_entry(MX23, OCRAM, MT_DEVICE),
  29         mxs_map_entry(MX23, IO, MT_DEVICE),
  30 };
  31
  32 /*
  33  * Define the MX28 memory map.
  34  */
  35 static struct map_desc mx28_io_desc[] __initdata = {
  36         mxs_map_entry(MX28, OCRAM, MT_DEVICE),
  37         mxs_map_entry(MX28, IO, MT_DEVICE),
  38 };
  39
  40 /*
  41  * This function initializes the memory map. It is called during the
  42  * system startup to create static physical to virtual memory mappings
  43  * for the IO modules.
  44  */
  45 void __init mx23_map_io(void)
  46 {
  47         iotable_init(mx23_io_desc, ARRAY_SIZE(mx23_io_desc));
  48 }
  49
  50 void __init mx23_init_irq(void)
  51 {
  52         icoll_init_irq();
  53 }
  54
  55 void __init mx28_map_io(void)
  56 {
  57         iotable_init(mx28_io_desc, ARRAY_SIZE(mx28_io_desc));
  58 }
  59
  60 void __init mx28_init_irq(void)
  61 {
  62         icoll_init_irq();
  63 }