arch/x86/kernel/promif/prom_init.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/promif.h>
  30 #include <sys/promimpl.h>
  31 #include <sys/prom_emul.h>
  32 #include <sys/bootconf.h>
  33 #include <sys/obpdefs.h>
  34 #include <sys/kmem.h>
  35
  36 int     promif_debug = 0;       /* debug */
  37 int     emul_1275 = 0;
  38
  39 /*
  40  *  Every standalone that wants to use this library must call
  41  *  prom_init() before any of the other routines can be called.
  42  */
  43 /*ARGSUSED*/
  44 void
  45 prom_init(char *pgmname, void *cookie)
  46 {
  47         /* nothing to do */
  48 }
  49
  50 #ifndef _KMDB
  51 /*
  52  * This is for compatibility only. Somewhere between Solaris 2.6
  53  * and 10, we had a prom tree constructed by a bootloader with
  54  * realmode drivers. That is now gone, but we are left with some
  55  * applications depending on /dev/openprom. We fake a prom tree
  56  * based on hardware properties in the kernel device tree.
  57  */
  58 void
  59 prom_setup()
  60 {
  61         promif_create_device_tree();
  62 }
  63 #endif