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system.h

/*
 * arch/arm/mach-ixp4xx/include/mach/system.h
 *
 * Copyright (C) 2002 Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 */

#include <mach/hardware.h>

static inline void arch_idle(void)
{
      /* ixp4xx does not implement the XScale PWRMODE register,
       * so it must not call cpu_do_idle() here.
       */
#if 0
      cpu_do_idle();
#endif
}


static inline void arch_reset(char mode, const char *cmd)
{
      if ( 1 && mode == 's') {
            /* Jump into ROM at address 0 */
            cpu_reset(0);
      } else {
            /* Use on-chip reset capability */

            /* set the "key" register to enable access to
             * "timer" and "enable" registers
             */
            *IXP4XX_OSWK = IXP4XX_WDT_KEY;

            /* write 0 to the timer register for an immediate reset */
            *IXP4XX_OSWT = 0;

            *IXP4XX_OSWE = IXP4XX_WDT_RESET_ENABLE | IXP4XX_WDT_COUNT_ENABLE;
      }
}


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