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/* * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * Copyright (C) 1997, 2001 Ralf Baechle * Copyright 2001 MontaVista Software Inc. * Author: jsun@mvista.com or jsun@junsun.net * * Copyright (C) 2002 Momentum Computer Inc. * Author: Matthew Dharm <mdharm@momenco.com> * * Louis Hamilton, Red Hat, Inc. * hamilton@redhat.com [MIPS64 modifications] */ #include <linux/sched.h> #include <linux/mm.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/processor.h> #include <asm/reboot.h> #include <asm/system.h> #include <linux/delay.h> void momenco_ocelot_restart(char *command) { /* base address of timekeeper portion of part */ void *nvram = (void *) #ifdef CONFIG_MIPS64 0xfffffffffc807000; #else 0xfc807000; #endif /* Ask the NVRAM/RTC/watchdog chip to assert reset in 1/16 second */ writeb(0x84, nvram + 0xff7); /* wait for the watchdog to go off */ mdelay(100+(1000/16)); /* if the watchdog fails for some reason, let people know */ printk(KERN_NOTICE "Watchdog reset failed\n"); } void momenco_ocelot_halt(void) { printk(KERN_NOTICE "\n** You can safely turn off the power\n"); while (1) __asm__(".set\tmips3\n\t" "wait\n\t" ".set\tmips0"); } void momenco_ocelot_power_off(void) { momenco_ocelot_halt(); } |