LXR linux/arch/mips/dec/reset.c

   1/*
   2 * Reset a DECstation machine.
   3 *
   4 * Copyright (C) 199x  the Anonymous
   5 * Copyright (C) 2001, 2002, 2003  Maciej W. Rozycki
   6 */
   7#include <linux/interrupt.h>
   8#include <linux/linkage.h>
   9
  10#include <asm/addrspace.h>
  11
  12typedef void __noreturn (* noret_func_t)(void);
  13
  14static inline void __noreturn back_to_prom(void)
  15{
  16        noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);
  17
  18        func();
  19}
  20
  21void __noreturn dec_machine_restart(char *command)
  22{
  23        back_to_prom();
  24}
  25
  26void __noreturn dec_machine_halt(void)
  27{
  28        back_to_prom();
  29}
  30
  31void __noreturn dec_machine_power_off(void)
  32{
  33    /* DECstations don't have a software power switch */
  34        back_to_prom();
  35}
  36
  37irqreturn_t dec_intr_halt(int irq, void *dev_id)
  38{
  39        dec_machine_halt();
  40}
  41