1 /*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32
33 #include <sys/cdefs.h>
34 /*
35 * Setup the system to run on the current machine.
36 *
37 * Configure() is called at boot time and initializes the vba
38 * device tables and the memory controller monitoring. Available
39 * devices are determined (from possibilities mentioned in ioconf.c),
40 * and the drivers are initialized.
41 */
42 #include "opt_bootp.h"
43 #include "opt_isa.h"
44 #include "opt_bus.h"
45
46 #include <sys/param.h>
47 #include <sys/systm.h>
48 #include <sys/bus.h>
49 #include <sys/conf.h>
50 #include <sys/reboot.h>
51 #include <sys/kernel.h>
52 #include <sys/malloc.h>
53 #include <sys/mount.h>
54 #include <sys/cons.h>
55
56 #include <sys/socket.h>
57 #include <net/if.h>
58 #include <net/if_dl.h>
59 #include <net/if_types.h>
60 #include <net/if_var.h>
61 #include <net/ethernet.h>
62 #include <netinet/in.h>
63
64 #include <machine/md_var.h>
65
66 #ifdef DEV_ISA
67 #include <isa/isavar.h>
68
69 device_t isa_bus_device = 0;
70 #endif
71
72 static void configure_first(void *);
73 static void configure(void *);
74 static void configure_final(void *);
75
76 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
77 /* SI_ORDER_SECOND is hookable */
78 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
79 /* SI_ORDER_MIDDLE is hookable */
80 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
81
82 /*
83 * Determine i/o configuration for a machine.
84 */
85 static void
configure_first(void * dummy)86 configure_first(void *dummy)
87 {
88
89 /* nexus0 is the top of the x86 device tree */
90 device_add_child(root_bus, "nexus", 0);
91 }
92
93 static void
configure(void * dummy)94 configure(void *dummy)
95 {
96
97 /* initialize new bus architecture */
98 root_bus_configure();
99
100 #ifdef DEV_ISA
101 /*
102 * Explicitly probe and attach ISA last. The isa bus saves
103 * it's device node at attach time for us here.
104 */
105 if (isa_bus_device)
106 isa_probe_children(isa_bus_device);
107 #endif
108 }
109
110 static void
configure_final(void * dummy)111 configure_final(void *dummy)
112 {
113
114 cninit_finish();
115
116 if (bootverbose)
117 printf("Device configuration finished.\n");
118
119 cold = 0;
120 }
121