2024-09-09 08:52:07 +00:00
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Reset an IP27.
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*
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* Copyright (C) 1997, 1998, 1999, 2000, 06 by Ralf Baechle
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/timer.h>
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#include <linux/smp.h>
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#include <linux/mmzone.h>
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#include <linux/nodemask.h>
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#include <linux/pm.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/reboot.h>
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#include <asm/sgialib.h>
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#include <asm/sn/addrs.h>
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#include <asm/sn/arch.h>
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#include <asm/sn/gda.h>
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#include <asm/sn/sn0/hub.h>
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void machine_restart(char *command) __attribute__((noreturn));
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void machine_halt(void) __attribute__((noreturn));
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void machine_power_off(void) __attribute__((noreturn));
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2024-09-09 08:57:42 +00:00
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#define noreturn while(1); /* Silence gcc. */
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2024-09-09 08:52:07 +00:00
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/* XXX How to pass the reboot command to the firmware??? */
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static void ip27_machine_restart(char *command)
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{
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#if 0
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int i;
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#endif
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printk("Reboot started from CPU %d\n", smp_processor_id());
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#ifdef CONFIG_SMP
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smp_send_stop();
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#endif
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#if 0
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for_each_online_node(i)
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REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
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PROMOP_REBOOT);
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#else
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LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
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#endif
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noreturn;
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}
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static void ip27_machine_halt(void)
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{
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int i;
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#ifdef CONFIG_SMP
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smp_send_stop();
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#endif
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for_each_online_node(i)
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REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
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PROMOP_RESTART);
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LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
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noreturn;
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}
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static void ip27_machine_power_off(void)
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{
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/* To do ... */
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noreturn;
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}
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void ip27_reboot_setup(void)
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{
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_machine_restart = ip27_machine_restart;
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_machine_halt = ip27_machine_halt;
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pm_power_off = ip27_machine_power_off;
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}
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