target/linux/ifxmips/files-2.6.30/arch/mips/ifxmips/reset.c

   1 /*
   2  *   This program is free software; you can redistribute it and/or modify
   3  *   it under the terms of the GNU General Public License as published by
   4  *   the Free Software Foundation; either version 2 of the License, or
   5  *   (at your option) any later version.
   6  *
   7  *   This program is distributed in the hope that it will be useful,
   8  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  *   GNU General Public License for more details.
  11  *
  12  *   You should have received a copy of the GNU General Public License
  13  *   along with this program; if not, write to the Free Software
  14  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
  15  *
  16  *   Copyright (C) 2007 John Crispin <blogic@openwrt.org>
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/pm.h>
  21 #include <linux/io.h>
  22
  23 #include <asm/reboot.h>
  24 #include <asm/system.h>
  25 #include <ifxmips.h>
  26
  27 static void ifxmips_machine_restart(char *command)
  28 {
  29         printk(KERN_NOTICE "System restart\n");
  30         local_irq_disable();
  31
  32         ifxmips_w32(ifxmips_r32(IFXMIPS_RCU_RST) | IFXMIPS_RCU_RST_ALL,
  33                 IFXMIPS_RCU_RST);
  34         for (;;)
  35                 ;
  36 }
  37
  38 static void ifxmips_machine_halt(void)
  39 {
  40         printk(KERN_NOTICE "System halted.\n");
  41         local_irq_disable();
  42         for (;;)
  43                 ;
  44 }
  45
  46 static void ifxmips_machine_power_off(void)
  47 {
  48         printk(KERN_NOTICE "Please turn off the power now.\n");
  49         local_irq_disable();
  50         for (;;)
  51                 ;
  52 }
  53
  54 void ifxmips_reboot_setup(void)
  55 {
  56         _machine_restart = ifxmips_machine_restart;
  57         _machine_halt = ifxmips_machine_halt;
  58         pm_power_off = ifxmips_machine_power_off;
  59 }