1 /* $NetBSD: autoconf.c,v 1.13 2025/10/13 14:12:13 thorpej 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 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 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 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 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 (! device_setprop_bool(dev, "am79c970-no-eeprom", 141 true)) { 142 aprint_normal("WARNING: unable to set " 143 "am79c970-no-eeprom property for %s\n", 144 device_xname(dev)); 145 } 146 } 147 148 if (BUILTIN_VIDEO_P(pa)) { 149 if (! prop_dictionary_set_uint32(dict, "width", 1024)) { 150 aprint_normal("WARNING: unable to set " 151 "width property for %s\n", 152 device_xname(dev)); 153 } 154 if (! prop_dictionary_set_uint32(dict, "height", 768)) { 155 aprint_normal("WARNING: unable to set " 156 "height property for %s\n", 157 device_xname(dev)); 158 } 159 if (! prop_dictionary_set_uint32(dict, "depth", 8)) { 160 aprint_normal("WARNING: unable to set " 161 "depth property for %s\n", 162 device_xname(dev)); 163 } 164 if (! prop_dictionary_set_uint32(dict, "address", 0)) { 165 aprint_normal("WARNING: unable to set " 166 "address property for %s\n", 167 device_xname(dev)); 168 } 169 if (! device_setprop_bool(dev, "is_console", true)) { 170 aprint_normal("WARNING: unable to set " 171 "is_console property for %s\n", 172 device_xname(dev)); 173 } 174 175 } 176 } 177 } 178
Indexes created Sun Oct 25 00:26:45 UTC 2026