1 /* 2 * Copyright (C) 2009 Michal Simek <monstr@monstr.eu> 3 * Copyright (C) 2009 PetaLogix 4 * 5 * This file is subject to the terms and conditions of the GNU General Public 6 * License. See the file "COPYING" in the main directory of this archive 7 * for more details. 8 */ 9 10 #include <linux/init.h> 11 #include <linux/delay.h> 12 #include <linux/reboot.h> 13 14 void machine_shutdown(void) 15 { 16 pr_notice("Machine shutdown...\n"); 17 while (1) 18 ; 19 } 20 21 void machine_halt(void) 22 { 23 pr_notice("Machine halt...\n"); 24 while (1) 25 ; 26 } 27 28 void machine_power_off(void) 29 { 30 pr_notice("Machine power off...\n"); 31 do_kernel_power_off(); 32 while (1) 33 ; 34 } 35 36 void machine_restart(char *cmd) 37 { 38 do_kernel_restart(cmd); 39 /* Give the restart hook 1 s to take us down */ 40 mdelay(1000); 41 pr_emerg("Reboot failed -- System halted\n"); 42 while (1); 43 } 44 45 #ifdef CONFIG_MB_POWER_OFF_THROUGH_UNALIGNED_PC 46 static int unaligned_pc_sys_off(struct sys_off_data *data) 47 { 48 __asm__( 49 "bri 1\n" 50 ); 51 52 return NOTIFY_DONE; 53 } 54 55 static int __init register_unaligned_pc_sys_off(void) 56 { 57 struct sys_off_handler *sys_off; 58 59 sys_off = register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_LOW, 60 unaligned_pc_sys_off, NULL); 61 return PTR_ERR_OR_ZERO(sys_off); 62 } 63 device_initcall(register_unaligned_pc_sys_off); 64 #endif /* CONFIG_MB_POWER_OFF_THROUGH_UNALIGNED_PC */ 65