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