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path: root/arch/mips/gt64120/momenco_ocelot/reset.c
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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
 */
#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>

void momenco_ocelot_restart(char *command)
{
	*(volatile char *) 0xbc000000 = 0x0f;

	/*
	 * Ouch, we're still alive ... This time we take the silver bullet ...
	 * ... and find that we leave the hardware in a state in which the
	 * kernel in the flush locks up somewhen during of after the PCI
	 * detection stuff.
	 */
	clear_cp0_status(ST0_BEV | ST0_ERL);
	change_cp0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
	flush_cache_all();
	write_32bit_cp0_register(CP0_WIRED, 0);
	__asm__ __volatile__("jr\t%0"::"r"(0xbfc00000));
}

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();
}