Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Author: Fuxin Zhang, zhangfx@lemote.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * Copyright (C) 2009 Lemote, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * Author: Zhangjin Wu, wuzhangjin@gmail.com
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/idle.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/reboot.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <loongson.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <boot_param.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) static void loongson_restart(char *command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	void (*fw_restart)(void) = (void *)loongson_sysconf.restart_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	fw_restart();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		if (cpu_wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 			cpu_wait();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static void loongson_poweroff(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	void (*fw_poweroff)(void) = (void *)loongson_sysconf.poweroff_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	fw_poweroff();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		if (cpu_wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			cpu_wait();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	}
^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) static void loongson_halt(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	pr_notice("\n\n** You can safely turn off the power now **\n\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 		if (cpu_wait)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 			cpu_wait();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static int __init mips_reboot_setup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	_machine_restart = loongson_restart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	_machine_halt = loongson_halt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	pm_power_off = loongson_poweroff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) arch_initcall(mips_reboot_setup);