reset.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * 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>
- #include <linux/delay.h>
- void momenco_ocelot_restart(char *command)
- {
- void *nvram = ioremap_nocache(0x2c807000, 0x1000);
- if (!nvram) {
- printk(KERN_NOTICE "ioremap of reset register failedn");
- return;
- }
- writeb(0x84, nvram + 0xff7); /* Ask the NVRAM/RTC/watchdog chip to
- assert reset in 1/16 second */
- mdelay(10+(1000/16));
- iounmap(nvram);
- printk(KERN_NOTICE "Watchdog reset failedn");
- }
- void momenco_ocelot_halt(void)
- {
- printk(KERN_NOTICE "n** You can safely turn off the powern");
- while (1)
- __asm__(".settmips3nt"
- "waitnt"
- ".settmips0");
- }
- void momenco_ocelot_power_off(void)
- {
- momenco_ocelot_halt();
- }