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