1/*- 2 * Copyright (c) 2001 Jake Burkholder. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> 28__FBSDID("$FreeBSD$"); 29 30#include "opt_isa.h" 31 32#include <sys/param.h> 33#include <sys/systm.h> 34#include <sys/bus.h> 35#include <sys/cons.h> 36#include <sys/kernel.h> 37 38#ifdef DEV_ISA 39#include <isa/isavar.h> 40extern device_t isa_bus_device; 41#endif 42 43static device_t nexusdev; 44 45static void configure_first(void *); 46static void configure(void *); 47static void configure_final(void *); 48 49SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 50/* SI_ORDER_SECOND is hookable */ 51SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 52/* SI_ORDER_MIDDLE is hookable */ 53SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 54 55/* 56 * Determine i/o configuration for a machine. 57 */ 58static void 59configure_first(void *dummy) 60{ 61 62 nexusdev = device_add_child(root_bus, "nexus", 0); 63} 64 65static void 66configure(void *dummy) 67{ 68 69 root_bus_configure(); 70#ifdef DEV_ISA 71 /* 72 * We bypass isa_probe_children(9) here in order to avoid 73 * invasive probes done by identify-routines of ISA drivers, 74 * which in turn can trigger master/target aborts, and the 75 * addition of ISA hints, which might erroneously exist. 76 */ 77 if (isa_bus_device != NULL) 78 (void)bus_generic_attach(isa_bus_device); 79#endif 80} 81 82static void 83configure_final(void *dummy) 84{ 85 86 cninit_finish(); 87 cold = 0; 88} 89