| /* |
| * 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/config.h> |
| #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_64BIT |
| 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(); |
| } |
