/* * 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> 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(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; }