blob: c15a879046e5ca906809a61c4612a2627f6b6663 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Reset a DECstation machine.
3 *
4 * Copyright (C) 199x the Anonymous
5 * Copyright (C) 2001, 2002, 2003 Maciej W. Rozycki
6 */
7#include <linux/interrupt.h>
8#include <linux/linkage.h>
9
10#include <asm/addrspace.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011
Robert P. J. Dayb3f6df92007-05-25 14:32:28 -040012typedef void __noreturn (* noret_func_t)(void);
Linus Torvalds1da177e2005-04-16 15:20:36 -070013
Robert P. J. Dayb3f6df92007-05-25 14:32:28 -040014static inline void __noreturn back_to_prom(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070015{
Maciej W. Rozycki3bd4c902005-06-16 20:30:54 +000016 noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
18 func();
19}
20
Robert P. J. Dayb3f6df92007-05-25 14:32:28 -040021void __noreturn dec_machine_restart(char *command)
Linus Torvalds1da177e2005-04-16 15:20:36 -070022{
23 back_to_prom();
24}
25
Robert P. J. Dayb3f6df92007-05-25 14:32:28 -040026void __noreturn dec_machine_halt(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070027{
28 back_to_prom();
29}
30
Robert P. J. Dayb3f6df92007-05-25 14:32:28 -040031void __noreturn dec_machine_power_off(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070032{
33 /* DECstations don't have a software power switch */
34 back_to_prom();
35}
36
Ralf Baechled62801e2006-10-08 17:38:18 +010037irqreturn_t dec_intr_halt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -070038{
39 dec_machine_halt();
40}