1 /* $NetBSD: autoconf.c,v 1.12 2012/07/29 18:05:43 mlelstv Exp $ */
2
3 /*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)autoconf.c 7.1 (Berkeley) 5/9/91
39 */
40
41 /*
42 * Setup the system to run on the current machine.
43 *
44 * Configure() is called at boot time and initializes the vba
45 * device tables and the memory controller monitoring. Available
46 * devices are determined (from possibilities mentioned in ioconf.c),
47 * and the drivers are initialized.
48 */
49 #include <sys/param.h>
50 #include <sys/systm.h>
51 #include <sys/buf.h>
52 #include <sys/dkstat.h>
53 #include <sys/disklabel.h>
54 #include <sys/conf.h>
55 #include <sys/reboot.h>
56 #include <sys/device.h>
57
58 #include <dev/pci/pcivar.h>
59
60 #include <machine/pte.h>
61 #include <machine/intr.h>
62
63 static void findroot(void);
64
65 /*
66 * Determine i/o configuration for a machine.
67 */
68 void
cpu_configure(void)69 cpu_configure(void)
70 {
71
72 if (config_rootfound("mainbus", NULL) == NULL)
73 panic("configure: mainbus not configured");
74
75 genppc_cpu_configure();
76 }
77
78 void
cpu_rootconf(void)79 cpu_rootconf(void)
80 {
81 findroot();
82
83 aprint_normal("boot device: %s\n",
84 booted_device ? device_xname(booted_device) : "<unknown>");
85
86 rootconf();
87 }
88
89 u_long bootdev = 0; /* should be dev_t, but not until 32 bits */
90
91 /*
92 * Attempt to find the device from which we were booted.
93 * If we can do so, and not instructed not to do so,
94 * change rootdev to correspond to the load device.
95 */
96 void
findroot(void)97 findroot(void)
98 {
99 int unit, part;
100 device_t dv;
101 const char *name;
102
103 #if 0
104 aprint_normal("howto %x bootdev %x ", boothowto, bootdev);
105 #endif
106
107 if ((bootdev & B_MAGICMASK) != (u_long)B_DEVMAGIC)
108 return;
109
110 name = devsw_blk2name((bootdev >> B_TYPESHIFT) & B_TYPEMASK);
111 if (name == NULL)
112 return;
113
114 part = (bootdev >> B_PARTITIONSHIFT) & B_PARTITIONMASK;
115 unit = (bootdev >> B_UNITSHIFT) & B_UNITMASK;
116
117 if ((dv = device_find_by_driver_unit(name, unit)) != NULL) {
118 booted_device = dv;
119 booted_partition = part;
120 }
121 }
122
123 #define BUILTIN_ETHERNET_P(pa) \
124 ((pa)->pa_bus == 0 && (pa)->pa_device == 2 && (pa)->pa_function == 0)
125
126 #define BUILTIN_VIDEO_P(pa) \
127 ((pa)->pa_bus == 0 && (pa)->pa_device == 4 && (pa)->pa_function == 0)
128
129 void
device_register(device_t dev,void * aux)130 device_register(device_t dev, void *aux)
131 {
132 device_t pdev;
133 prop_dictionary_t dict;
134
135 if ((pdev = device_parent(dev)) != NULL && device_is_a(pdev, "pci")) {
136 struct pci_attach_args *pa = aux;
137
138 dict = device_properties(dev);
139 if (BUILTIN_ETHERNET_P(pa)) {
140 if (! prop_dictionary_set_bool(dict,
141 "am79c970-no-eeprom",
142 true)) {
143 aprint_normal("WARNING: unable to set "
144 "am79c970-no-eeprom property for %s\n",
145 device_xname(dev));
146 }
147 }
148
149 if (BUILTIN_VIDEO_P(pa)) {
150 if (! prop_dictionary_set_uint32(dict, "width", 1024)) {
151 aprint_normal("WARNING: unable to set "
152 "width property for %s\n",
153 device_xname(dev));
154 }
155 if (! prop_dictionary_set_uint32(dict, "height", 768)) {
156 aprint_normal("WARNING: unable to set "
157 "height property for %s\n",
158 device_xname(dev));
159 }
160 if (! prop_dictionary_set_uint32(dict, "depth", 8)) {
161 aprint_normal("WARNING: unable to set "
162 "depth property for %s\n",
163 device_xname(dev));
164 }
165 if (! prop_dictionary_set_uint32(dict, "address", 0)) {
166 aprint_normal("WARNING: unable to set "
167 "address property for %s\n",
168 device_xname(dev));
169 }
170 if (! prop_dictionary_set_bool(dict, "is_console", true)) {
171 aprint_normal("WARNING: unable to set "
172 "address property for %s\n",
173 device_xname(dev));
174 }
175
176 }
177 }
178 }
179