Commit | Line | Data |
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cdb3592a DM |
1 | /* reboot.c: reboot/shutdown/halt/poweroff handling |
2 | * | |
3 | * Copyright (C) 2008 David S. Miller <davem@davemloft.net> | |
4 | */ | |
5 | #include <linux/kernel.h> | |
6 | #include <linux/reboot.h> | |
7 | #include <linux/module.h> | |
8 | #include <linux/pm.h> | |
9 | ||
10 | #include <asm/sstate.h> | |
11 | #include <asm/oplib.h> | |
12 | #include <asm/prom.h> | |
13 | ||
14 | /* sysctl - toggle power-off restriction for serial console | |
15 | * systems in machine_power_off() | |
16 | */ | |
17 | int scons_pwroff = 1; | |
18 | ||
19 | /* This isn't actually used, it exists merely to satisfy the | |
20 | * reference in kernel/sys.c | |
21 | */ | |
22 | void (*pm_power_off)(void) = machine_power_off; | |
23 | EXPORT_SYMBOL(pm_power_off); | |
24 | ||
25 | void machine_power_off(void) | |
26 | { | |
27 | sstate_poweroff(); | |
28 | if (strcmp(of_console_device->type, "serial") || scons_pwroff) | |
29 | prom_halt_power_off(); | |
30 | ||
31 | prom_halt(); | |
32 | } | |
33 | ||
34 | void machine_halt(void) | |
35 | { | |
36 | sstate_halt(); | |
37 | prom_halt(); | |
38 | panic("Halt failed!"); | |
39 | } | |
40 | ||
41 | void machine_restart(char *cmd) | |
42 | { | |
43 | char *p; | |
44 | ||
45 | sstate_reboot(); | |
46 | p = strchr(reboot_command, '\n'); | |
47 | if (p) | |
48 | *p = 0; | |
49 | if (cmd) | |
50 | prom_reboot(cmd); | |
51 | if (*reboot_command) | |
52 | prom_reboot(reboot_command); | |
53 | prom_reboot(""); | |
54 | panic("Reboot failed!"); | |
55 | } | |
56 |