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#include "opt_isa.h"
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD$");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/bus.h>
35#include <sys/cons.h>
36#include <sys/kernel.h>
37
38#include <machine/intr_machdep.h>
39
40#ifdef DEV_ISA
41extern void isa_probe_children(device_t dev);
42
43device_t isa_bus_device;
44#endif
45
46static device_t nexusdev;
47
48static void	configure_first(void *);
49static void	configure(void *);
50static void	configure_final(void *);
51
52SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
53/* SI_ORDER_SECOND is hookable */
54SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
55/* SI_ORDER_MIDDLE is hookable */
56SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
57
58/*
59 * Determine i/o configuration for a machine.
60 */
61static void
62configure_first(void *dummy)
63{
64
65	nexusdev = device_add_child(root_bus, "nexus", 0);
66}
67
68static void
69configure(void *dummy)
70{
71
72	root_bus_configure();
73#ifdef DEV_ISA
74	if (isa_bus_device)
75		isa_probe_children(isa_bus_device);
76#endif
77}
78
79static void
80configure_final(void *dummy)
81{
82
83	/*
84	 * Now that we're guaranteed to have a PIC driver (or we'll never
85	 * have one), program it with all the previously setup interrupts.
86	 */
87	powerpc_enable_intr();
88
89	/* Enable external interrupts. */
90	mtmsr(mfmsr() | PSL_EE);
91
92	cninit_finish();
93	cold = 0;
94}
95