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, 01, 05 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 * Copyright 2004 PMC-Sierra
18 * Author: Manish Lachwani (lachwani@pmc-sierra.com)
19 *
20 * Copyright (C) 2004 MontaVista Software Inc.
21 * Author: Manish Lachwani, mlachwani@mvista.com
22 */
23#include <linux/sched.h>
24#include <linux/mm.h>
25#include <linux/delay.h>
26#include <asm/io.h>
27#include <asm/pgtable.h>
28#include <asm/processor.h>
29#include <asm/reboot.h>
30#include <asm/system.h>
31
32void momenco_ocelot_restart(char *command)
33{
34	/* base address of timekeeper portion of part */
35	void *nvram = (void *) 0xfc807000L;
36
37	/* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */
38	writeb(0x84, nvram + 0xff7);
39
40	/* wait for the watchdog to go off */
41	mdelay(100+(1000/16));
42
43	/* if the watchdog fails for some reason, let people know */
44	printk(KERN_NOTICE "Watchdog reset failed\n");
45}
46
47void momenco_ocelot_halt(void)
48{
49	printk(KERN_NOTICE "\n** You can safely turn off the power\n");
50	while (1)
51		__asm__(".set\tmips3\n\t"
52	                "wait\n\t"
53			".set\tmips0");
54}
55
56void momenco_ocelot_power_off(void)
57{
58	momenco_ocelot_halt();
59}
60