release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-clps711x/fortunet.c

   1 /*
   2  *  linux/arch/arm/mach-clps711x/fortunet.c
   3  *
   4  *  Derived from linux/arch/arm/mach-integrator/arch.c
   5  *
   6  *  Copyright (C) 2000 Deep Blue Solutions Ltd
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22 #include <linux/types.h>
  23 #include <linux/init.h>
  24 #include <linux/initrd.h>
  25
  26 #include <mach/hardware.h>
  27 #include <asm/setup.h>
  28 #include <asm/mach-types.h>
  29
  30 #include <asm/mach/arch.h>
  31
  32 #include <asm/memory.h>
  33
  34 #include "common.h"
  35
  36 struct meminfo memmap = {
  37         .nr_banks       = 1,
  38         .bank           = {
  39                 {
  40                         .start  = 0xC0000000,
  41                         .size   = 0x01000000,
  42                 },
  43         },
  44 };
  45
  46 typedef struct tag_IMAGE_PARAMS
  47 {
  48         int     ramdisk_ok;
  49         int     ramdisk_address;
  50         int     ramdisk_size;
  51         int     ram_size;
  52         int     extra_param_type;
  53         int     extra_param_ptr;
  54         int     command_line;
  55 } IMAGE_PARAMS;
  56
  57 #define IMAGE_PARAMS_PHYS       0xC01F0000
  58
  59 static void __init
  60 fortunet_fixup(struct machine_desc *desc, struct tag *tags,
  61                  char **cmdline, struct meminfo *mi)
  62 {
  63         IMAGE_PARAMS *ip = phys_to_virt(IMAGE_PARAMS_PHYS);
  64         *cmdline = phys_to_virt(ip->command_line);
  65 #ifdef CONFIG_BLK_DEV_INITRD
  66         if(ip->ramdisk_ok)
  67         {
  68                 initrd_start = __phys_to_virt(ip->ramdisk_address);
  69                 initrd_end = initrd_start + ip->ramdisk_size;
  70         }
  71 #endif
  72         memmap.bank[0].size = ip->ram_size;
  73         *mi = memmap;
  74 }
  75
  76 MACHINE_START(FORTUNET, "ARM-FortuNet")
  77         /* Maintainer: FortuNet Inc. */
  78         .phys_io        = 0x80000000,
  79         .io_pg_offst    = ((0xf0000000) >> 18) & 0xfffc,
  80         .boot_params    = 0x00000000,
  81         .fixup          = fortunet_fixup,
  82         .map_io         = clps711x_map_io,
  83         .init_irq       = clps711x_init_irq,
  84         .timer          = &clps711x_timer,
  85 MACHINE_END