81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
/*
|
|
* 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/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>
|
|
|
|
void machine_restart(char *command) __attribute__((noreturn));
|
|
void machine_halt(void) __attribute__((noreturn));
|
|
void machine_power_off(void) __attribute__((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(COMPACT_TO_NASID_NODEID(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(COMPACT_TO_NASID_NODEID(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;
|
|
}
|