1/*
2 * 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 */
20#include <linux/kernel.h>
21#include <linux/pm.h>
22
23#include <asm/reboot.h>
24#include <asm/system.h>
25#include <asm/lasat/lasat.h>
26
27#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;
68	pm_power_off = lasat_machine_halt;
69}
70