arch/arm/mach-iop3xx/iq31244-mm.c

   1 /*
   2  * linux/arch/arm/mach-iop3xx/mm.c
   3  *
   4  * Low level memory initialization for iq80321 platform
   5  *
   6  * Author: Rory Bolt <rorybolt@pacbell.net>
   7  * Copyright (C) 2002 Rory Bolt
   8  *
   9  * This program is free software; you can redistribute  it and/or modify it
  10  * under  the terms of  the GNU General  Public License as published by the
  11  * Free Software Foundation;  either version 2 of the  License, or (at your
  12  * option) any later version.
  13  *
  14  */
  15
  16 #include <linux/mm.h>
  17 #include <linux/init.h>
  18
  19 #include <asm/io.h>
  20 #include <asm/pgtable.h>
  21 #include <asm/page.h>
  22
  23 #include <asm/mach/map.h>
  24
  25
  26 /*
  27  * IQ80321 specific IO mappings
  28  *
  29  * We use RedBoot's setup for the onboard devices.
  30  */
  31 static struct map_desc iq31244_io_desc[] __initdata = {
  32         {       /* on-board devices */
  33                 .virtual        = IQ31244_UART,
  34                 .pfn            = __phys_to_pfn(IQ31244_UART),
  35                 .length         = 0x00100000,
  36                 .type           = MT_DEVICE
  37         }
  38 };
  39
  40 void __init iq31244_map_io(void)
  41 {
  42         iop321_map_io();
  43
  44         iotable_init(iq31244_io_desc, ARRAY_SIZE(iq31244_io_desc));
  45 }