1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1998 Doug Rabson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include "opt_isa.h" 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/bus.h> 34 #include <sys/cons.h> 35 #include <sys/kernel.h> 36 37 #include <machine/intr_machdep.h> 38 39 #ifdef DEV_ISA 40 extern void isa_probe_children(device_t dev); 41 42 device_t isa_bus_device; 43 #endif 44 45 static device_t nexusdev; 46 47 static void configure_first(void *); 48 static void configure(void *); 49 static void configure_final(void *); 50 51 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 52 /* SI_ORDER_SECOND is hookable */ 53 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 54 /* SI_ORDER_MIDDLE is hookable */ 55 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 56 57 /* 58 * Determine i/o configuration for a machine. 59 */ 60 static void 61 configure_first(void *dummy) 62 { 63 64 nexusdev = device_add_child(root_bus, "nexus", 0); 65 } 66 67 static void 68 configure(void *dummy) 69 { 70 71 root_bus_configure(); 72 #ifdef DEV_ISA 73 if (isa_bus_device) 74 isa_probe_children(isa_bus_device); 75 #endif 76 } 77 78 static void 79 configure_final(void *dummy) 80 { 81 82 /* 83 * Now that we're guaranteed to have a PIC driver (or we'll never 84 * have one), program it with all the previously setup interrupts. 85 */ 86 powerpc_enable_intr(); 87 88 /* Enable external interrupts. */ 89 mtmsr(mfmsr() | PSL_EE); 90 91 cninit_finish(); 92 cold = 0; 93 } 94