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 * 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 #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(void *dummy) 91 { 92 93 /* nexus0 is the top of the x86 device tree */ 94 device_add_child(root_bus, "nexus", 0); 95 } 96 97 static void 98 configure(void *dummy) 99 { 100 101 /* initialize new bus architecture */ 102 root_bus_configure(); 103 104 #ifdef DEV_ISA 105 /* 106 * Explicitly probe and attach ISA last. The isa bus saves 107 * it's device node at attach time for us here. 108 */ 109 if (isa_bus_device) 110 isa_probe_children(isa_bus_device); 111 #endif 112 } 113 114 static void 115 configure_final(void *dummy) 116 { 117 118 cninit_finish(); 119 120 if (bootverbose) 121 printf("Device configuration finished.\n"); 122 123 cold = 0; 124 } 125