diff options
Diffstat (limited to 'arch/sparc/kernel/reboot.c')
| -rw-r--r-- | arch/sparc/kernel/reboot.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c new file mode 100644 index 0000000000..69c1b6c047 --- /dev/null +++ b/arch/sparc/kernel/reboot.c @@ -0,0 +1,55 @@ +// 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!"); +} + |