target/linux/adm5120/files/arch/mips/adm5120/reset.c

   1 /*
   2  *  $Id$
   3  *
   4  *  ADM5120 specific reset routines
   5  *
   6  *  Copyright (C) 2007 OpenWrt.org
   7  *  Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
   8  *
   9  *  This code was based on the ADM5120 specific port of the Linux 2.6.10 kernel
  10  *  done by Jeroen Vreeken
  11  *      Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
  12  *
  13  *  Jeroen's code was based on the Linux 2.4.xx source codes found in various
  14  *  tarballs released by Edimax for it's ADM5120 based devices.
  15  *      Copyright (C) ADMtek Incorporated
  16  *
  17  *  This program is free software; you can redistribute it and/or modify it
  18  *  under the terms of the GNU General Public License version 2 as published
  19  *  by the Free Software Foundation.
  20  *
  21  */
  22
  23 #include <linux/types.h>
  24 #include <linux/kernel.h>
  25 #include <linux/init.h>
  26
  27 #include <linux/irq.h>
  28 #include <linux/io.h>
  29
  30 #include <asm/addrspace.h>
  31
  32 #include <adm5120_info.h>
  33 #include <adm5120_defs.h>
  34 #include <adm5120_switch.h>
  35
  36 void (*adm5120_board_reset)(void);
  37
  38 void adm5120_restart(char *command)
  39 {
  40         /* TODO: stop switch before reset */
  41
  42         if (adm5120_board_reset)
  43                 adm5120_board_reset();
  44
  45         SW_WRITE_REG(SWITCH_REG_SOFT_RESET, 1);
  46 }
  47
  48 void adm5120_halt(void)
  49 {
  50         local_irq_disable();
  51
  52         while (1) {
  53                 if (cpu_wait)
  54                         cpu_wait();
  55         };
  56 }