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, 2001 Ralf Baechle 8 * Copyright 2001 MontaVista Software Inc. 9 * Author: jsun@mvista.com or jsun@junsun.net 10 */ 11#include <linux/sched.h> 12#include <linux/mm.h> 13#include <asm/io.h> 14#include <asm/pgtable.h> 15#include <asm/processor.h> 16#include <asm/reboot.h> 17#include <asm/system.h> 18#include <linux/delay.h> 19 20void momenco_ocelot_restart(char *command) 21{ 22 void *nvram = ioremap_nocache(0x2c807000, 0x1000); 23 24 if (!nvram) { 25 printk(KERN_NOTICE "ioremap of reset register failed\n"); 26 return; 27 } 28 writeb(0x84, nvram + 0xff7); /* Ask the NVRAM/RTC/watchdog chip to 29 assert reset in 1/16 second */ 30 mdelay(10+(1000/16)); 31 iounmap(nvram); 32 printk(KERN_NOTICE "Watchdog reset failed\n"); 33} 34 35void momenco_ocelot_halt(void) 36{ 37 printk(KERN_NOTICE "\n** You can safely turn off the power\n"); 38 while (1) 39 __asm__(".set\tmips3\n\t" 40 "wait\n\t" 41 ".set\tmips0"); 42} 43 44void momenco_ocelot_power_off(void) 45{ 46 momenco_ocelot_halt(); 47} 48