PageRenderTime 11ms CodeModel.GetById 1ms app.highlight 6ms RepoModel.GetById 2ms app.codeStats 0ms

/arch/mips/sgi-ip27/ip27-reset.c

https://bitbucket.org/evzijst/gittest
C | 81 lines | 60 code | 9 blank | 12 comment | 0 complexity | 77a0501f5669b6daa030cce631d61d74 MD5 | raw file
 1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 * Reset an IP27.
 7 *
 8 * Copyright (C) 1997, 1998, 1999, 2000 by Ralf Baechle
 9 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
10 */
11#include <linux/config.h>
12#include <linux/kernel.h>
13#include <linux/sched.h>
14#include <linux/timer.h>
15#include <linux/smp.h>
16#include <linux/mmzone.h>
17#include <linux/nodemask.h>
18
19#include <asm/io.h>
20#include <asm/irq.h>
21#include <asm/reboot.h>
22#include <asm/system.h>
23#include <asm/sgialib.h>
24#include <asm/sn/addrs.h>
25#include <asm/sn/arch.h>
26#include <asm/sn/gda.h>
27#include <asm/sn/sn0/hub.h>
28
29void machine_restart(char *command) __attribute__((noreturn));
30void machine_halt(void) __attribute__((noreturn));
31void machine_power_off(void) __attribute__((noreturn));
32
33#define noreturn while(1);				/* Silence gcc.  */
34
35/* XXX How to pass the reboot command to the firmware??? */
36static void ip27_machine_restart(char *command)
37{
38#if 0
39	int i;
40#endif
41
42	printk("Reboot started from CPU %d\n", smp_processor_id());
43#ifdef CONFIG_SMP
44	smp_send_stop();
45#endif
46#if 0
47	for_each_online_node(i)
48		REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
49							PROMOP_REBOOT);
50#else
51	LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
52#endif
53	noreturn;
54}
55
56static void ip27_machine_halt(void)
57{
58	int i;
59
60#ifdef CONFIG_SMP
61	smp_send_stop();
62#endif
63	for_each_online_node(i)
64		REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
65							PROMOP_RESTART);
66	LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
67	noreturn;
68}
69
70static void ip27_machine_power_off(void)
71{
72	/* To do ...  */
73	noreturn;
74}
75
76void ip27_reboot_setup(void)
77{
78	_machine_restart = ip27_machine_restart;
79	_machine_halt = ip27_machine_halt;
80	_machine_power_off = ip27_machine_power_off;
81}