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
  22 /*
  23  * Define the MX23 memory map.
  24  */
  25 static struct map_desc mx23_io_desc[] __initdata = {
  26         mxs_map_entry(MX23, OCRAM, MT_DEVICE),
  27         mxs_map_entry(MX23, IO, MT_DEVICE),
  28 };
  29
  30 /*
  31  * Define the MX28 memory map.
  32  */
  33 static struct map_desc mx28_io_desc[] __initdata = {
  34         mxs_map_entry(MX28, OCRAM, MT_DEVICE),
  35         mxs_map_entry(MX28, IO, MT_DEVICE),
  36 };
  37
  38 /*
  39  * This function initializes the memory map. It is called during the
  40  * system startup to create static physical to virtual memory mappings
  41  * for the IO modules.
  42  */
  43 void __init mx23_map_io(void)
  44 {
  45         iotable_init(mx23_io_desc, ARRAY_SIZE(mx23_io_desc));
  46 }
  47
  48 void __init mx28_map_io(void)
  49 {
  50         iotable_init(mx28_io_desc, ARRAY_SIZE(mx28_io_desc));
  51 }