sys/arch/powerpc/ibm4xx/board_prop.c

   1 /*      $NetBSD: board_prop.c,v 1.2 2005/12/11 12:18:42 christos Exp $  */
   2
   3 /*
   4  * Copyright (c) 2004 Shigeyuki Fukushima.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above
  13  *    copyright notice, this list of conditions and the following
  14  *    disclaimer in the documentation and/or other materials provided
  15  *    with the distribution.
  16  * 3. The name of the author may not be used to endorse or promote
  17  *    products derived from this software without specific prior
  18  *    written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  21  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  22  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  24  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  26  * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  28  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #include <sys/cdefs.h>
  34 __KERNEL_RCSID(0, "$NetBSD: board_prop.c,v 1.2 2005/12/11 12:18:42 christos Exp $");
  35
  36 #include <sys/param.h>
  37 #include <sys/systm.h>
  38
  39 #include <prop/proplib.h>
  40
  41 #include <machine/cpu.h>
  42
  43 prop_dictionary_t board_properties;
  44
  45 void
  46 board_info_init(void)
  47 {
  48
  49         /*
  50          * Set up the board properties dictionary.
  51          */
  52         if (board_properties != NULL)
  53                 return;
  54         board_properties = prop_dictionary_create();
  55         KASSERT(board_properties != NULL);
  56 }