arch/arm/mach-ks8695/include/mach/system.h

   1 /*
   2  * arch/arm/mach-s3c2410/include/mach/system.h
   3  *
   4  * Copyright (C) 2006 Simtec Electronics
   5  *      Ben Dooks <ben@simtec.co.uk>
   6  *
   7  * KS8695 - System function defines and includes
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #ifndef __ASM_ARCH_SYSTEM_H
  15 #define __ASM_ARCH_SYSTEM_H
  16
  17 #include <linux/io.h>
  18 #include <mach/regs-timer.h>
  19
  20 static void arch_idle(void)
  21 {
  22         /*
  23          * This should do all the clock switching
  24          * and wait for interrupt tricks,
  25          */
  26         cpu_do_idle();
  27
  28 }
  29
  30 static void arch_reset(char mode, const char *cmd)
  31 {
  32         unsigned int reg;
  33
  34         if (mode == 's')
  35                 cpu_reset(0);
  36
  37         /* disable timer0 */
  38         reg = __raw_readl(KS8695_TMR_VA + KS8695_TMCON);
  39         __raw_writel(reg & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
  40
  41         /* enable watchdog mode */
  42         __raw_writel((10 << 8) | T0TC_WATCHDOG, KS8695_TMR_VA + KS8695_T0TC);
  43
  44         /* re-enable timer0 */
  45         __raw_writel(reg | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON);
  46 }
  47
  48 #endif