board/ssv/common/post.c

   1 /*
   2  * (C) Copyright 2004, Li-Pro.Net <www.li-pro.net>
   3  * Stephan Linz <linz@li-pro.net>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #include <common.h>
  25
  26 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
  27
  28 #if !defined(CONFIG_SYS_NIOS_POST_WORD_ADDR)
  29 #error "*** CONFIG_SYS_NIOS_POST_WORD_ADDR not defined ***"
  30 #endif
  31
  32 void post_word_store (ulong a)
  33 {
  34         volatile void *save_addr = (void *)(CONFIG_SYS_NIOS_POST_WORD_ADDR);
  35         *(volatile ulong *) save_addr = a;
  36 }
  37
  38 ulong post_word_load (void)
  39 {
  40         volatile void *save_addr = (void *)(CONFIG_SYS_NIOS_POST_WORD_ADDR);
  41         return *(volatile ulong *) save_addr;
  42 }
  43
  44 #endif  /* CONFIG_POST || CONFIG_LOGBUFFER*/