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- // SPDX-License-Identifier: GPL-2.0
- /* reboot.c: reboot/shutdown/halt/poweroff handling
- *
- * Copyright (C) 2008 David S. Miller <[email protected]>
- */
- #include <linux/kernel.h>
- #include <linux/reboot.h>
- #include <linux/export.h>
- #include <linux/pm.h>
- #include <linux/of.h>
- #include <asm/oplib.h>
- #include <asm/prom.h>
- #include <asm/setup.h>
- /* sysctl - toggle power-off restriction for serial console
- * systems in machine_power_off()
- */
- int scons_pwroff = 1;
- /* This isn't actually used, it exists merely to satisfy the
- * reference in kernel/sys.c
- */
- void (*pm_power_off)(void) = machine_power_off;
- EXPORT_SYMBOL(pm_power_off);
- void machine_power_off(void)
- {
- if (!of_node_is_type(of_console_device, "serial") || scons_pwroff)
- prom_halt_power_off();
- prom_halt();
- }
- void machine_halt(void)
- {
- prom_halt();
- panic("Halt failed!");
- }
- void machine_restart(char *cmd)
- {
- char *p;
- p = strchr(reboot_command, '\n');
- if (p)
- *p = 0;
- if (cmd)
- prom_reboot(cmd);
- if (*reboot_command)
- prom_reboot(reboot_command);
- prom_reboot("");
- panic("Reboot failed!");
- }
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