1 /*-
2 * Copyright (c) 1998 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #ifndef lint
28 static const char rcsid[] =
29 "$FreeBSD: releng/5.0/sys/powerpc/powerpc/autoconf.c 103597 2002-09-19 04:28:45Z grehan $";
30 #endif
31
32 #include "opt_bootp.h"
33 #include "opt_nfs.h"
34 #include "opt_nfsroot.h"
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/bus.h>
39 #include <sys/cons.h>
40 #include <sys/kernel.h>
41
42 static void configure(void *);
43 SYSINIT(configure, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL)
44 #ifdef NFS_ROOT
45 SYSINIT(cpu_rootconf, SI_SUB_ROOT_CONF, SI_ORDER_FIRST, cpu_rootconf, NULL)
46
47 #ifndef BOOTP_NFSROOT
48 #error "NFS_ROOT support not implemented for the non-BOOTP_NFSROOT case"
49 #endif
50
51 extern void bootpc_init(void);
52
53 void
54 cpu_rootconf()
55 {
56
57 bootpc_init();
58 rootdevnames[0] = "nfs:";
59 }
60 #endif
61
62 /*
63 * Determine i/o configuration for a machine.
64 */
65 static void
66 configure(void *dummy)
67 {
68 device_add_child(root_bus, "nexus", 0);
69
70 root_bus_configure();
71
72 /*
73 * Enable device interrupts
74 */
75 mtmsr(mfmsr() | PSL_EE | PSL_RI);
76
77 cold = 0;
78 }
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