1 // SPDX-License-Identifier: GPL-2.0
2 /* reboot.c: reboot/shutdown/halt/poweroff handling
6 #include <linux/kernel.h>
7 #include <linux/reboot.h>
8 #include <linux/export.h>
11 #include <asm/oplib.h>
13 #include <asm/setup.h>
15 /* sysctl - toggle power-off restriction for serial console
16 * systems in machine_power_off()
20 /* This isn't actually used, it exists merely to satisfy the
21 * reference in kernel/sys.c
23 void (*pm_power_off)(void) = machine_power_off;
24 EXPORT_SYMBOL(pm_power_off);
26 void machine_power_off(void)
28 if (strcmp(of_console_device->type, "serial") || scons_pwroff)
29 prom_halt_power_off();
34 void machine_halt(void)
37 panic("Halt failed!");
40 void machine_restart(char *cmd)
44 p = strchr(reboot_command, '\n');
50 prom_reboot(reboot_command);
52 panic("Reboot failed!");