1/* 2 * 3 * Thomas Horsten <thh@lasat.com> 4 * Copyright (C) 2000 LASAT Networks A/S. 5 * 6 * ######################################################################## 7 * 8 * This program is free software; you can distribute it and/or modify it 9 * under the terms of the GNU General Public License (Version 2) as 10 * published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * for more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. 20 * 21 * ######################################################################## 22 * 23 * Reset the LASAT board. 24 * 25 */ 26 27#include <linux/kernel.h> 28#include <asm/reboot.h> 29#include <asm/system.h> 30#include <asm/lasat/lasat.h> 31#include "picvue.h" 32 33static void lasat_machine_restart(char *command); 34static void lasat_machine_halt(void); 35 36/* Used to set machine to boot in service mode via /proc interface */ 37int lasat_boot_to_service = 0; 38 39static void lasat_machine_restart(char *command) 40{ 41 cli(); 42 43 { 44 volatile unsigned int *softres_reg = lasat_misc->reset_reg; 45 46 if (lasat_boot_to_service) { 47 printk("machine_restart: Rebooting to service mode\n"); 48 *(volatile unsigned int *)0xa0000024 = 0xdeadbeef; 49 *(volatile unsigned int *)0xa00000fc = 0xfedeabba; 50 } 51 *softres_reg = 0xbedead; 52 } 53 for (;;) ; 54} 55 56#define MESSAGE "System halted" 57static void lasat_machine_halt(void) 58{ 59 /* Disable interrupts and loop forever */ 60 printk(KERN_NOTICE MESSAGE "\n"); 61#ifdef CONFIG_PICVUE 62 pvc_clear(); 63 pvc_write_string(MESSAGE, 0, 0); 64#endif 65 cli(); 66 for (;;) ; 67} 68 69void lasat_reboot_setup(void) 70{ 71 _machine_restart = lasat_machine_restart; 72 _machine_halt = lasat_machine_halt; 73 _machine_power_off = lasat_machine_halt; 74} 75