/*
   * Cobalt Reset operations
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
   * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
   */
  #include <linux/init.h>
  #include <linux/io.h>
  #include <linux/leds.h>
  
  #include <asm/idle.h>
  #include <asm/processor.h>
  
  #include <cobalt.h>
  
  #define RESET_PORT	((void __iomem *)CKSEG1ADDR(0x1c000000))
  #define RESET		0x0f
  
  DEFINE_LED_TRIGGER(power_off_led_trigger);
  
  static int __init ledtrig_power_off_init(void)
  {
  	led_trigger_register_simple("power-off", &power_off_led_trigger);
  	return 0;
  }
  device_initcall(ledtrig_power_off_init);
  
  void cobalt_machine_halt(void)
  {
  	/*
  	 * turn on power off LED on RaQ
  	 */
  	led_trigger_event(power_off_led_trigger, LED_FULL);
  
  	local_irq_disable();
  	while (1) {
  		if (cpu_wait)
  			cpu_wait();
  	}
  }
  
  void cobalt_machine_restart(char *command)
  {
  	writeb(RESET, RESET_PORT);
  
  	/* we should never get here */
  	cobalt_machine_halt();
  }