allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / arch / mips / momentum / ocelot_c / reset.c
blob3fdcb64ff1e69bd8324d4499778122b26cb3d535
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.
7 * Copyright (C) 1997, 2001 Ralf Baechle
8 * Copyright 2001 MontaVista Software Inc.
9 * Author: jsun@mvista.com or jsun@junsun.net
11 * Copyright (C) 2002 Momentum Computer Inc.
12 * Author: Matthew Dharm <mdharm@momenco.com>
14 * Louis Hamilton, Red Hat, Inc.
15 * hamilton@redhat.com [MIPS64 modifications]
17 #include <linux/sched.h>
18 #include <linux/mm.h>
19 #include <asm/io.h>
20 #include <asm/pgtable.h>
21 #include <asm/processor.h>
22 #include <asm/reboot.h>
23 #include <asm/system.h>
24 #include <linux/delay.h>
26 void momenco_ocelot_restart(char *command)
28 /* base address of timekeeper portion of part */
29 void *nvram = (void *)
30 #ifdef CONFIG_64BIT
31 0xfffffffffc807000;
32 #else
33 0xfc807000;
34 #endif
36 /* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */
37 writeb(0x84, nvram + 0xff7);
39 /* wait for the watchdog to go off */
40 mdelay(100+(1000/16));
42 /* if the watchdog fails for some reason, let people know */
43 printk(KERN_NOTICE "Watchdog reset failed\n");
46 void momenco_ocelot_halt(void)
48 printk(KERN_NOTICE "\n** You can safely turn off the power\n");
49 while (1)
50 __asm__(".set\tmips3\n\t"
51 "wait\n\t"
52 ".set\tmips0");
55 void momenco_ocelot_power_off(void)
57 momenco_ocelot_halt();