diff options
Diffstat (limited to 'arch/mips/lasat/reset.c')
-rw-r--r-- | arch/mips/lasat/reset.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/arch/mips/lasat/reset.c b/arch/mips/lasat/reset.c new file mode 100644 index 0000000..37e4912 --- /dev/null +++ b/arch/mips/lasat/reset.c @@ -0,0 +1,67 @@ +/* + * Thomas Horsten <thh@lasat.com> + * Copyright (C) 2000 LASAT Networks A/S. + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Reset the LASAT board. + */ +#include <linux/config.h> +#include <linux/kernel.h> +#include <asm/reboot.h> +#include <asm/system.h> +#include <asm/lasat/lasat.h> +#include "picvue.h" +#include "prom.h" + +static void lasat_machine_restart(char *command); +static void lasat_machine_halt(void); + +/* Used to set machine to boot in service mode via /proc interface */ +int lasat_boot_to_service = 0; + +static void lasat_machine_restart(char *command) +{ + local_irq_disable(); + + if (lasat_boot_to_service) { + printk("machine_restart: Rebooting to service mode\n"); + *(volatile unsigned int *)0xa0000024 = 0xdeadbeef; + *(volatile unsigned int *)0xa00000fc = 0xfedeabba; + } + *lasat_misc->reset_reg = 0xbedead; + for (;;) ; +} + +#define MESSAGE "System halted" +static void lasat_machine_halt(void) +{ + local_irq_disable(); + + /* Disable interrupts and loop forever */ + printk(KERN_NOTICE MESSAGE "\n"); +#ifdef CONFIG_PICVUE + pvc_clear(); + pvc_write_string(MESSAGE, 0, 0); +#endif + prom_monitor(); + for (;;) ; +} + +void lasat_reboot_setup(void) +{ + _machine_restart = lasat_machine_restart; + _machine_halt = lasat_machine_halt; + _machine_power_off = lasat_machine_halt; +} |