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 * 4. 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 * from: @(#)autoconf.c 7.1 (Berkeley) 5/9/91
33 */
34
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD: src/sys/amd64/amd64/autoconf.c,v 1.182 2005/05/29 23:44:22 marcel Exp $");
37
38 /*
39 * Setup the system to run on the current machine.
40 *
41 * Configure() is called at boot time and initializes the vba
42 * device tables and the memory controller monitoring. Available
43 * devices are determined (from possibilities mentioned in ioconf.c),
44 * and the drivers are initialized.
45 */
46 #include "opt_bootp.h"
47 #include "opt_isa.h"
48 #include "opt_bus.h"
49
50 #include <sys/param.h>
51 #include <sys/systm.h>
52 #include <sys/bus.h>
53 #include <sys/conf.h>
54 #include <sys/reboot.h>
55 #include <sys/kernel.h>
56 #include <sys/malloc.h>
57 #include <sys/mount.h>
58 #include <sys/cons.h>
59
60 #include <sys/socket.h>
61 #include <net/if.h>
62 #include <net/if_dl.h>
63 #include <net/if_types.h>
64 #include <net/if_var.h>
65 #include <net/ethernet.h>
66 #include <netinet/in.h>
67
68 #include <machine/md_var.h>
69
70 #ifdef DEV_ISA
71 #include <isa/isavar.h>
72
73 device_t isa_bus_device = 0;
74 #endif
75
76 static void configure_first(void *);
77 static void configure(void *);
78 static void configure_final(void *);
79
80 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
81 /* SI_ORDER_SECOND is hookable */
82 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
83 /* SI_ORDER_MIDDLE is hookable */
84 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
85
86 /*
87 * Determine i/o configuration for a machine.
88 */
89 static void
90 configure_first(dummy)
91 void *dummy;
92 {
93
94 /* nexus0 is the top of the amd64 device tree */
95 device_add_child(root_bus, "nexus", 0);
96 }
97
98 static void
99 configure(dummy)
100 void *dummy;
101 {
102
103 /*
104 * Enable interrupts on the processor. The interrupts are still
105 * disabled in the interrupt controllers until interrupt handlers
106 * are registered.
107 */
108 enable_intr();
109
110 /* initialize new bus architecture */
111 root_bus_configure();
112
113 #ifdef DEV_ISA
114 /*
115 * Explicitly probe and attach ISA last. The isa bus saves
116 * it's device node at attach time for us here.
117 */
118 if (isa_bus_device)
119 isa_probe_children(isa_bus_device);
120 #endif
121 }
122
123 static void
124 configure_final(dummy)
125 void *dummy;
126 {
127
128 cninit_finish();
129 if (bootverbose)
130 printf("Device configuration finished.\n");
131 cold = 0;
132 }
133 Cache object: 66cc82b6bc4c6c2957893819e30aeb8a
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