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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Reset an IP27.
*
* Copyright (C) 1997, 1998, 1999, 2000, 06 by Ralf Baechle
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
*/
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/timer.h>
#include <linux/smp.h>
#include <linux/mmzone.h>
#include <linux/nodemask.h>
#include <linux/pm.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/reboot.h>
#include <asm/sgialib.h>
#include <asm/sn/addrs.h>
#include <asm/sn/arch.h>
#include <asm/sn/gda.h>
#include <asm/sn/sn0/hub.h>
#include "ip27-common.h"
void machine_restart(char *command) __noreturn;
void machine_halt(void) __noreturn;
void machine_power_off(void) __noreturn;
#define noreturn while(1); /* Silence gcc. */
/* XXX How to pass the reboot command to the firmware??? */
static void ip27_machine_restart(char *command)
{
#if 0
int i;
#endif
printk("Reboot started from CPU %d\n", smp_processor_id());
#ifdef CONFIG_SMP
smp_send_stop();
#endif
#if 0
for_each_online_node(i)
REMOTE_HUB_S(i, PROMOP_REG, PROMOP_REBOOT);
#else
LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
#endif
noreturn;
}
static void ip27_machine_halt(void)
{
int i;
#ifdef CONFIG_SMP
smp_send_stop();
#endif
for_each_online_node(i)
REMOTE_HUB_S(i, PROMOP_REG, PROMOP_RESTART);
LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
noreturn;
}
static void ip27_machine_power_off(void)
{
/* To do ... */
noreturn;
}
void ip27_reboot_setup(void)
{
_machine_restart = ip27_machine_restart;
_machine_halt = ip27_machine_halt;
pm_power_off = ip27_machine_power_off;
}
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