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// SPDX-License-Identifier: GPL-2.0
/* reboot.c: reboot/shutdown/halt/poweroff handling
*
* Copyright (C) 2008 David S. Miller <davem@davemloft.net>
*/
#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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