arch/mips/loongson/common/reset.c

   1 /*
   2  * This program is free software; you can redistribute  it and/or modify it
   3  * under  the terms of  the GNU General  Public License as published by the
   4  * Free Software Foundation;  either version 2 of the  License, or (at your
   5  * option) any later version.
   6  *
   7  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
   8  * Author: Fuxin Zhang, zhangfx@lemote.com
   9  * Copyright (C) 2009 Lemote, Inc. & Institute of Computing Technology
  10  * Author: Zhangjin Wu, wuzj@lemote.com
  11  */
  12 #include <linux/init.h>
  13 #include <linux/pm.h>
  14
  15 #include <asm/reboot.h>
  16
  17 #include <loongson.h>
  18
  19 static void loongson_restart(char *command)
  20 {
  21         /* do preparation for reboot */
  22         mach_prepare_reboot();
  23
  24         /* reboot via jumping to boot base address */
  25         ((void (*)(void))ioremap_nocache(BONITO_BOOT_BASE, 4)) ();
  26 }
  27
  28 static void loongson_halt(void)
  29 {
  30         mach_prepare_shutdown();
  31         while (1)
  32                 ;
  33 }
  34
  35 static int __init mips_reboot_setup(void)
  36 {
  37         _machine_restart = loongson_restart;
  38         _machine_halt = loongson_halt;
  39         pm_power_off = loongson_halt;
  40
  41         return 0;
  42 }
  43
  44 arch_initcall(mips_reboot_setup);