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("$FreeBSD$"); 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 #ifdef PC98 69 #include <machine/bootinfo.h> 70 #endif 71 #include <machine/md_var.h> 72 73 #ifdef DEV_ISA 74 #include <isa/isavar.h> 75 76 device_t isa_bus_device = 0; 77 #endif 78 79 static void configure_first(void *); 80 static void configure(void *); 81 static void configure_final(void *); 82 83 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 84 /* SI_ORDER_SECOND is hookable */ 85 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 86 /* SI_ORDER_MIDDLE is hookable */ 87 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 88 89 /* 90 * Determine i/o configuration for a machine. 91 */ 92 static void 93 configure_first(dummy) 94 void *dummy; 95 { 96 97 /* nexus0 is the top of the x86 device tree */ 98 device_add_child(root_bus, "nexus", 0); 99 } 100 101 static void 102 configure(dummy) 103 void *dummy; 104 { 105 106 /* initialize new bus architecture */ 107 root_bus_configure(); 108 109 #ifdef DEV_ISA 110 /* 111 * Explicitly probe and attach ISA last. The isa bus saves 112 * it's device node at attach time for us here. 113 */ 114 if (isa_bus_device) 115 isa_probe_children(isa_bus_device); 116 #endif 117 } 118 119 static void 120 configure_final(dummy) 121 void *dummy; 122 { 123 124 cninit_finish(); 125 126 if (bootverbose) { 127 #ifdef PC98 128 int i; 129 130 /* 131 * Print out the BIOS's idea of the disk geometries. 132 */ 133 printf("BIOS Geometries:\n"); 134 for (i = 0; i < N_BIOS_GEOM; i++) { 135 unsigned long bios_geom; 136 int max_cylinder, max_head, max_sector; 137 138 bios_geom = bootinfo.bi_bios_geom[i]; 139 140 /* 141 * XXX the bootstrap punts a 1200K floppy geometry 142 * when the get-disk-geometry interrupt fails. Skip 143 * drives that have this geometry. 144 */ 145 if (bios_geom == 0x4f020f) 146 continue; 147 148 printf(" %x:%08lx ", i, bios_geom); 149 max_cylinder = bios_geom >> 16; 150 max_head = (bios_geom >> 8) & 0xff; 151 max_sector = bios_geom & 0xff; 152 printf( 153 "0..%d=%d cylinders, 0..%d=%d heads, 1..%d=%d sectors\n", 154 max_cylinder, max_cylinder + 1, 155 max_head, max_head + 1, 156 max_sector, max_sector); 157 } 158 printf(" %d accounted for\n", bootinfo.bi_n_bios_used); 159 #endif 160 161 printf("Device configuration finished.\n"); 162 } 163 cold = 0; 164 } 165