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 33 #include <sys/cdefs.h> 34 /* 35 * Setup the system to run on the current machine. 36 * 37 * Configure() is called at boot time and initializes the vba 38 * device tables and the memory controller monitoring. Available 39 * devices are determined (from possibilities mentioned in ioconf.c), 40 * and the drivers are initialized. 41 */ 42 #include "opt_bootp.h" 43 #include "opt_isa.h" 44 #include "opt_bus.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/bus.h> 49 #include <sys/conf.h> 50 #include <sys/reboot.h> 51 #include <sys/kernel.h> 52 #include <sys/malloc.h> 53 #include <sys/mount.h> 54 #include <sys/cons.h> 55 56 #include <sys/socket.h> 57 #include <net/if.h> 58 #include <net/if_dl.h> 59 #include <net/if_types.h> 60 #include <net/if_var.h> 61 #include <net/ethernet.h> 62 #include <netinet/in.h> 63 64 #include <machine/md_var.h> 65 66 #ifdef DEV_ISA 67 #include <isa/isavar.h> 68 69 device_t isa_bus_device = 0; 70 #endif 71 72 static void configure_first(void *); 73 static void configure(void *); 74 static void configure_final(void *); 75 76 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 77 /* SI_ORDER_SECOND is hookable */ 78 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 79 /* SI_ORDER_MIDDLE is hookable */ 80 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 81 82 /* 83 * Determine i/o configuration for a machine. 84 */ 85 static void 86 configure_first(void *dummy) 87 { 88 89 /* nexus0 is the top of the x86 device tree */ 90 device_add_child(root_bus, "nexus", 0); 91 } 92 93 static void 94 configure(void *dummy) 95 { 96 97 /* initialize new bus architecture */ 98 root_bus_configure(); 99 100 #ifdef DEV_ISA 101 /* 102 * Explicitly probe and attach ISA last. The isa bus saves 103 * it's device node at attach time for us here. 104 */ 105 if (isa_bus_device) 106 isa_probe_children(isa_bus_device); 107 #endif 108 } 109 110 static void 111 configure_final(void *dummy) 112 { 113 114 cninit_finish(); 115 116 if (bootverbose) 117 printf("Device configuration finished.\n"); 118 119 cold = 0; 120 } 121