blob: 9e22acf03083217b7687a9997b0e21290797fff3 [file] [log] [blame]
Ralf Baechle42a3b4f2005-09-03 15:56:17 -07001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 * Thomas Horsten <thh@lasat.com>
3 * Copyright (C) 2000 LASAT Networks A/S.
4 *
5 * This program is free software; you can distribute it and/or modify it
6 * under the terms of the GNU General Public License (Version 2) as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * for more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
17 *
18 * Reset the LASAT board.
19 */
Linus Torvalds1da177e2005-04-16 15:20:36 -070020#include <linux/kernel.h>
Ralf Baechlefcdb27a2006-01-18 17:37:07 +000021#include <linux/pm.h>
22
Linus Torvalds1da177e2005-04-16 15:20:36 -070023#include <asm/reboot.h>
24#include <asm/system.h>
25#include <asm/lasat/lasat.h>
Ralf Baechlefcdb27a2006-01-18 17:37:07 +000026
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include "picvue.h"
28#include "prom.h"
29
30static void lasat_machine_restart(char *command);
31static void lasat_machine_halt(void);
32
33/* Used to set machine to boot in service mode via /proc interface */
34int lasat_boot_to_service = 0;
35
36static void lasat_machine_restart(char *command)
37{
38 local_irq_disable();
39
40 if (lasat_boot_to_service) {
41 printk("machine_restart: Rebooting to service mode\n");
42 *(volatile unsigned int *)0xa0000024 = 0xdeadbeef;
43 *(volatile unsigned int *)0xa00000fc = 0xfedeabba;
44 }
45 *lasat_misc->reset_reg = 0xbedead;
46 for (;;) ;
47}
48
49#define MESSAGE "System halted"
50static void lasat_machine_halt(void)
51{
52 local_irq_disable();
53
54 /* Disable interrupts and loop forever */
55 printk(KERN_NOTICE MESSAGE "\n");
56#ifdef CONFIG_PICVUE
57 pvc_clear();
58 pvc_write_string(MESSAGE, 0, 0);
59#endif
60 prom_monitor();
61 for (;;) ;
62}
63
64void lasat_reboot_setup(void)
65{
66 _machine_restart = lasat_machine_restart;
67 _machine_halt = lasat_machine_halt;
Ralf Baechlefcdb27a2006-01-18 17:37:07 +000068 pm_power_off = lasat_machine_halt;
Linus Torvalds1da177e2005-04-16 15:20:36 -070069}