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

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Reset a DECstation machine.
   4 *
   5 * Copyright (C) 199x  the Anonymous
   6 * Copyright (C) 2001, 2002, 2003  Maciej W. Rozycki
   7 */
   8#include <linux/interrupt.h>
   9#include <linux/linkage.h>
  10
  11#include <asm/addrspace.h>
  12
  13typedef void __noreturn (* noret_func_t)(void);
  14
  15static inline void __noreturn back_to_prom(void)
  16{
  17        noret_func_t func = (void *)CKSEG1ADDR(0x1fc00000);
  18
  19        func();
  20}
  21
  22void __noreturn dec_machine_restart(char *command)
  23{
  24        back_to_prom();
  25}
  26
  27void __noreturn dec_machine_halt(void)
  28{
  29        back_to_prom();
  30}
  31
  32void __noreturn dec_machine_power_off(void)
  33{
  34    /* DECstations don't have a software power switch */
  35        back_to_prom();
  36}
  37
  38irqreturn_t dec_intr_halt(int irq, void *dev_id)
  39{
  40        dec_machine_halt();
  41}
  42