1 /*- 2 * Copyright (c) 2015 The FreeBSD Foundation 3 * 4 * This software was developed by Andrew Turner under 5 * sponsorship from the FreeBSD Foundation. 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 30 #include <sys/cdefs.h> 31 /* 32 * Setup the system to run on the current machine. 33 * 34 * Configure() is called at boot time and initializes the vba 35 * device tables and the memory controller monitoring. Available 36 * devices are determined (from possibilities mentioned in ioconf.c), 37 * and the drivers are initialized. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/bus.h> 43 #include <sys/cons.h> 44 #include <sys/kernel.h> 45 46 #include <machine/intr.h> 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 /* nexus0 is the top of the device tree */ 66 device_add_child(root_bus, "nexus", 0); 67 } 68 69 static void 70 configure(void *dummy) 71 { 72 73 /* initialize new bus architecture */ 74 root_bus_configure(); 75 } 76 77 static void 78 configure_final(void *dummy) 79 { 80 81 /* Enable interrupt reception on this CPU */ 82 intr_enable(); 83 cninit_finish(); 84 85 if (bootverbose) 86 printf("Device configuration finished.\n"); 87 88 cold = 0; 89 } 90