MIPS: Whitespace cleanup.
[linux-drm-fsl-dcu.git] / arch / mips / sgi-ip27 / ip27-reset.c
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, 06 by Ralf Baechle
9  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
10  */
11 #include <linux/kernel.h>
12 #include <linux/sched.h>
13 #include <linux/timer.h>
14 #include <linux/smp.h>
15 #include <linux/mmzone.h>
16 #include <linux/nodemask.h>
17 #include <linux/pm.h>
18
19 #include <asm/io.h>
20 #include <asm/irq.h>
21 #include <asm/reboot.h>
22 #include <asm/sgialib.h>
23 #include <asm/sn/addrs.h>
24 #include <asm/sn/arch.h>
25 #include <asm/sn/gda.h>
26 #include <asm/sn/sn0/hub.h>
27
28 void machine_restart(char *command) __attribute__((noreturn));
29 void machine_halt(void) __attribute__((noreturn));
30 void machine_power_off(void) __attribute__((noreturn));
31
32 #define noreturn while(1);                              /* Silence gcc.  */
33
34 /* XXX How to pass the reboot command to the firmware??? */
35 static void ip27_machine_restart(char *command)
36 {
37 #if 0
38         int i;
39 #endif
40
41         printk("Reboot started from CPU %d\n", smp_processor_id());
42 #ifdef CONFIG_SMP
43         smp_send_stop();
44 #endif
45 #if 0
46         for_each_online_node(i)
47                 REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
48                                                         PROMOP_REBOOT);
49 #else
50         LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
51 #endif
52         noreturn;
53 }
54
55 static void ip27_machine_halt(void)
56 {
57         int i;
58
59 #ifdef CONFIG_SMP
60         smp_send_stop();
61 #endif
62         for_each_online_node(i)
63                 REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG,
64                                                         PROMOP_RESTART);
65         LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET);
66         noreturn;
67 }
68
69 static void ip27_machine_power_off(void)
70 {
71         /* To do ...  */
72         noreturn;
73 }
74
75 void ip27_reboot_setup(void)
76 {
77         _machine_restart = ip27_machine_restart;
78         _machine_halt = ip27_machine_halt;
79         pm_power_off = ip27_machine_power_off;
80 }