Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify it | |
3 | * under the terms of the GNU General Public License as published by the | |
4 | * Free Software Foundation; either version 2 of the License, or (at your | |
5 | * option) any later version. | |
6 | * | |
7 | * Copyright (C) 1997, 2001 Ralf Baechle | |
8 | * Copyright 2001 MontaVista Software Inc. | |
9 | * Author: jsun@mvista.com or jsun@junsun.net | |
10 | * | |
11 | * Copyright (C) 2002 Momentum Computer Inc. | |
12 | * Author: Matthew Dharm <mdharm@momenco.com> | |
13 | * | |
14 | * Louis Hamilton, Red Hat, Inc. | |
15 | * hamilton@redhat.com [MIPS64 modifications] | |
16 | */ | |
17 | #include <linux/config.h> | |
18 | #include <linux/sched.h> | |
19 | #include <linux/mm.h> | |
20 | #include <asm/io.h> | |
21 | #include <asm/pgtable.h> | |
22 | #include <asm/processor.h> | |
23 | #include <asm/reboot.h> | |
24 | #include <asm/system.h> | |
25 | #include <linux/delay.h> | |
26 | ||
27 | void momenco_jaguar_restart(char *command) | |
28 | { | |
29 | /* base address of timekeeper portion of part */ | |
30 | #ifdef CONFIG_MIPS64 | |
31 | void *nvram = (void*) 0xfffffffffc807000; | |
32 | #else | |
33 | void *nvram = (void*) 0xfc807000; | |
34 | #endif | |
35 | /* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */ | |
36 | writeb(0x84, nvram + 0xff7); | |
37 | ||
38 | /* wait for the watchdog to go off */ | |
39 | mdelay(100+(1000/16)); | |
40 | ||
41 | /* if the watchdog fails for some reason, let people know */ | |
42 | printk(KERN_NOTICE "Watchdog reset failed\n"); | |
43 | } | |
44 | ||
45 | void momenco_jaguar_halt(void) | |
46 | { | |
47 | printk(KERN_NOTICE "\n** You can safely turn off the power\n"); | |
48 | while (1) | |
49 | __asm__(".set\tmips3\n\t" | |
50 | "wait\n\t" | |
51 | ".set\tmips0"); | |
52 | } | |
53 | ||
54 | void momenco_jaguar_power_off(void) | |
55 | { | |
56 | momenco_jaguar_halt(); | |
57 | } |