projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | */ | |
| e86169ff | 11 | #include <linux/init.h> |
| 3282bd3c | 12 | #include <linux/io.h> |
| e86169ff | 13 | #include <linux/leds.h> |
| cc50b67d | 14 | |
| bdc92d74 | 15 | #include <asm/idle.h> |
| 167da469 YY |
16 | #include <asm/processor.h> |
| 17 | ||
| cc50b67d | 18 | #include <cobalt.h> |
| 1da177e4 | 19 | |
| 3282bd3c YY |
20 | #define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000)) |
| 21 | #define RESET 0x0f | |
| 22 | ||
| e86169ff YY |
23 | DEFINE_LED_TRIGGER(power_off_led_trigger); |
| 24 | ||
| 25 | static int __init ledtrig_power_off_init(void) | |
| 26 | { | |
| 27 | led_trigger_register_simple("power-off", &power_off_led_trigger); | |
| 28 | return 0; | |
| 29 | } | |
| 30 | device_initcall(ledtrig_power_off_init); | |
| 31 | ||
| c4ed38a0 | 32 | void cobalt_machine_halt(void) |
| 1da177e4 | 33 | { |
| 1da177e4 | 34 | /* |
| e86169ff | 35 | * turn on power off LED on RaQ |
| 1da177e4 | 36 | */ |
| e86169ff | 37 | led_trigger_event(power_off_led_trigger, LED_FULL); |
| c4ed38a0 | 38 | |
| 71466dd4 | 39 | local_irq_disable(); |
| 167da469 YY |
40 | while (1) { |
| 41 | if (cpu_wait) | |
| 42 | cpu_wait(); | |
| 43 | } | |
| 1da177e4 LT |
44 | } |
| 45 | ||
| c4ed38a0 RB |
46 | void cobalt_machine_restart(char *command) |
| 47 | { | |
| 3282bd3c | 48 | writeb(RESET, RESET_PORT); |
| c4ed38a0 RB |
49 | |
| 50 | /* we should never get here */ | |
| 51 | cobalt_machine_halt(); | |
| 52 | } |