arch/arm/mach-u300/include/mach/system.h

   1 /*
   2  *
   3  * arch/arm/mach-u300/include/mach/system.h
   4  *
   5  *
   6  * Copyright (C) 2007-2009 ST-Ericsson AB
   7  * License terms: GNU General Public License (GPL) version 2
   8  * System shutdown and reset functions.
   9  * Author: Linus Walleij <linus.walleij@stericsson.com>
  10  */
  11 #include <mach/hardware.h>
  12 #include <asm/io.h>
  13 #include <asm/hardware/vic.h>
  14 #include <asm/irq.h>
  15
  16 /* Forward declare this function from the watchdog */
  17 void coh901327_watchdog_reset(void);
  18
  19 static inline void arch_idle(void)
  20 {
  21         cpu_do_idle();
  22 }
  23
  24 static void arch_reset(char mode, const char *cmd)
  25 {
  26         switch (mode) {
  27         case 's':
  28         case 'h':
  29                 printk(KERN_CRIT "RESET: shutting down/rebooting system\n");
  30                 /* Disable interrupts */
  31                 local_irq_disable();
  32 #ifdef CONFIG_COH901327_WATCHDOG
  33                 coh901327_watchdog_reset();
  34 #endif
  35                 break;
  36         default:
  37                 /* Do nothing */
  38                 break;
  39         }
  40         /* Wait for system do die/reset. */
  41         while (1);
  42 }