1 /*- 2 * Copyright (c) 1998 Doug Rabson 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 "opt_isa.h" 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 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 #include <machine/intr_machdep.h> 39 40 #ifdef DEV_ISA 41 extern void isa_probe_children(device_t dev); 42 43 device_t isa_bus_device; 44 #endif 45 46 static device_t nexusdev; 47 48 static void configure_first(void *); 49 static void configure(void *); 50 static void configure_final(void *); 51 52 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL); 53 /* SI_ORDER_SECOND is hookable */ 54 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL); 55 /* SI_ORDER_MIDDLE is hookable */ 56 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL); 57 58 /* 59 * Determine i/o configuration for a machine. 60 */ 61 static void 62 configure_first(void *dummy) 63 { 64 65 nexusdev = device_add_child(root_bus, "nexus", 0); 66 } 67 68 static void 69 configure(void *dummy) 70 { 71 72 root_bus_configure(); 73 #ifdef DEV_ISA 74 if (isa_bus_device) 75 isa_probe_children(isa_bus_device); 76 #endif 77 } 78 79 static void 80 configure_final(void *dummy) 81 { 82 83 /* 84 * Now that we're guaranteed to have a PIC driver (or we'll never 85 * have one), program it with all the previously setup interrupts. 86 */ 87 powerpc_enable_intr(); 88 89 /* Enable external interrupts. */ 90 mtmsr(mfmsr() | PSL_EE); 91 92 cninit_finish(); 93 cold = 0; 94 } 95