Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /* reboot.c: reboot/shutdown/halt/poweroff handling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/reboot.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/export.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/oplib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/prom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) /* sysctl - toggle power-off restriction for serial console
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  * systems in machine_power_off()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) int scons_pwroff = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* This isn't actually used, it exists merely to satisfy the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * reference in kernel/sys.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) void (*pm_power_off)(void) = machine_power_off;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) EXPORT_SYMBOL(pm_power_off);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) void machine_power_off(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	if (!of_node_is_type(of_console_device, "serial") || scons_pwroff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		prom_halt_power_off();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	prom_halt();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) void machine_halt(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	prom_halt();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	panic("Halt failed!");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) void machine_restart(char *cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	p = strchr(reboot_command, '\n');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	if (p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 		*p = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	if (cmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 		prom_reboot(cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 	if (*reboot_command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		prom_reboot(reboot_command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	prom_reboot("");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	panic("Reboot failed!");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)