1 | /* |
---|---|
2 | * Cobalt Reset operations |
3 | * |
4 | * This file is subject to the terms and conditions of the GNU General Public |
5 | * License. See the file "COPYING" in the main directory of this archive |
6 | * for more details. |
7 | * |
8 | * Copyright (C) 1995, 1996, 1997 by Ralf Baechle |
9 | * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv) |
10 | */ |
11 | #include <linux/init.h> |
12 | #include <linux/io.h> |
13 | #include <linux/leds.h> |
14 | |
15 | #include <asm/idle.h> |
16 | #include <asm/processor.h> |
17 | |
18 | #include <cobalt.h> |
19 | |
20 | #define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000)) |
21 | #define RESET 0x0f |
22 | |
23 | DEFINE_LED_TRIGGER(power_off_led_trigger); |
24 | |
25 | static int __init ledtrig_power_off_init(void) |
26 | { |
27 | led_trigger_register_simple(name: "power-off", trigger: &power_off_led_trigger); |
28 | return 0; |
29 | } |
30 | device_initcall(ledtrig_power_off_init); |
31 | |
32 | void cobalt_machine_halt(void) |
33 | { |
34 | /* |
35 | * turn on power off LED on RaQ |
36 | */ |
37 | led_trigger_event(trigger: power_off_led_trigger, event: LED_FULL); |
38 | |
39 | local_irq_disable(); |
40 | while (1) { |
41 | if (cpu_wait) |
42 | cpu_wait(); |
43 | } |
44 | } |
45 | |
46 | void cobalt_machine_restart(char *command) |
47 | { |
48 | writeb(RESET, RESET_PORT); |
49 | |
50 | /* we should never get here */ |
51 | cobalt_machine_halt(); |
52 | } |
53 |