| /* |
| * 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(); |
| } |