target/linux/adm5120-2.6/files/arch/mips/adm5120/reset.c

   1 /*
   2  *  $Id$
   3  *
   4  *  ADM5120 specific reset routines
   5  *
   6  *  Copyright (C) ADMtek Incorporated.
   7  *  Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
   8  *  Copyright (C) 2007 Gabor Juhos <juhosg@freemail.hu>
   9  *  Copyright (C) 2007 OpenWrt.org
  10  *
  11  *  This program is free software; you can redistribute it and/or
  12  *  modify it under the terms of the GNU General Public License
  13  *  as published by the Free Software Foundation; either version 2
  14  *  of the License, or (at your option) any later version.
  15  *
  16  *  This program is distributed in the hope that it will be useful,
  17  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  *  GNU General Public License for more details.
  20  *
  21  *  You should have received a copy of the GNU General Public License
  22  *  along with this program; if not, write to the
  23  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24  *  Boston, MA  02110-1301, USA.
  25  *
  26  */
  27
  28 #include <linux/types.h>
  29 #include <linux/kernel.h>
  30 #include <linux/init.h>
  31
  32 #include <asm/bootinfo.h>
  33 #include <asm/addrspace.h>
  34
  35 #include <asm/mach-adm5120/adm5120_info.h>
  36 #include <asm/mach-adm5120/adm5120_defs.h>
  37 #include <asm/mach-adm5120/adm5120_switch.h>
  38
  39 #define ADM5120_SOFTRESET       0x12000004
  40
  41 void (*adm5120_board_reset)(void);
  42
  43 void adm5120_restart(char *command)
  44 {
  45         /* TODO: stop switch before reset */
  46
  47         if (adm5120_board_reset)
  48                 adm5120_board_reset();
  49
  50         *(u32*)KSEG1ADDR(ADM5120_SOFTRESET)=1;
  51 }
  52
  53 void adm5120_halt(void)
  54 {
  55         printk(KERN_NOTICE "\n** You can safely turn off the power\n");
  56         while (1);
  57 }
  58
  59 void adm5120_power_off(void)
  60 {
  61         adm5120_halt();
  62 }