2 * Copyright (c) 2015 The FreeBSD Foundation
5 * This software was developed by Andrew Turner under
6 * sponsorship from the FreeBSD Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
35 * Setup the system to run on the current machine.
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.
43 #include <sys/param.h>
44 #include <sys/systm.h>
47 #include <sys/kernel.h>
49 #include <machine/intr.h>
51 static void configure_first(void *);
52 static void configure(void *);
53 static void configure_final(void *);
55 SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
56 /* SI_ORDER_SECOND is hookable */
57 SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
58 /* SI_ORDER_MIDDLE is hookable */
59 SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
62 * Determine i/o configuration for a machine.
65 configure_first(void *dummy)
68 /* nexus0 is the top of the device tree */
69 device_add_child(root_bus, "nexus", 0);
73 configure(void *dummy)
76 /* initialize new bus architecture */
81 configure_final(void *dummy)
84 /* Enable interrupt reception on this CPU */
89 printf("Device configuration finished.\n");