reset.c
1.06 KB
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/*
* 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();
}