arch/mips/vr41xx/tanbac-tb0229/tb0219.c

   1 /*
   2  *  tb0219.c, Setup for the TANBAC TB0219
   3  *
   4  *  Copyright (C) 2003  Megasolution Inc. <matsu@megasolution.jp>
   5  *  Copyright (C) 2004  Yoichi Yuasa <yuasa@hh.iij4u.or.jp>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21 #include <linux/init.h>
  22
  23 #include <asm/io.h>
  24 #include <asm/reboot.h>
  25
  26 #define TB0219_RESET_REGS       KSEG1ADDR(0x0a00000e)
  27
  28 #define tb0219_hard_reset()     writew(0, TB0219_RESET_REGS)
  29
  30 static void tanbac_tb0219_restart(char *command)
  31 {
  32         local_irq_disable();
  33         tb0219_hard_reset();
  34         while (1);
  35 }
  36
  37 static int __init tanbac_tb0219_setup(void)
  38 {
  39         _machine_restart = tanbac_tb0219_restart;
  40
  41         return 0;
  42 }
  43
  44 early_initcall(tanbac_tb0219_setup);