include/asm-arm/arch-ixp4xx/system.h

   1 /*
   2  * include/asm-arm/arch-ixp4xx/system.h
   3  *
   4  * Copyright (C) 2002 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <asm/arch/hardware.h>
  13
  14 static inline void arch_idle(void)
  15 {
  16 #if 0
  17         if (!hlt_counter)
  18                 cpu_do_idle(0);
  19 #endif
  20 }
  21
  22
  23 static inline void arch_reset(char mode)
  24 {
  25         if ( 1 && mode == 's') {
  26                 /* Jump into ROM at address 0 */
  27                 cpu_reset(0);
  28         } else {
  29                 /* Use on-chip reset capability */
  30
  31                 /* set the "key" register to enable access to
  32                  * "timer" and "enable" registers
  33                  */
  34                 *IXP4XX_OSWK = IXP4XX_WDT_KEY;
  35
  36                 /* write 0 to the timer register for an immediate reset */
  37                 *IXP4XX_OSWT = 0;
  38
  39                 *IXP4XX_OSWE = IXP4XX_WDT_RESET_ENABLE | IXP4XX_WDT_COUNT_ENABLE;
  40         }
  41 }
  42