autoconf.c revision 331722 
1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
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.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by the University of
19 *	California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	from: @(#)autoconf.c	7.1 (Berkeley) 5/9/91
37 * from: FreeBSD: src/sys/i386/i386/autoconf.c,v 1.156
38 */
39
40/*
41 * Setup the system to run on the current machine.
42 *
43 * Configure() is called at boot time and initializes the vba
44 * device tables and the memory controller monitoring.  Available
45 * devices are determined (from possibilities mentioned in ioconf.c),
46 * and the drivers are initialized.
47 */
48
49#include <sys/cdefs.h>
50__FBSDID("$FreeBSD: stable/11/sys/arm/arm/autoconf.c 331722 2018-03-29 02:50:57Z eadler $");
51
52#include <sys/param.h>
53#include <sys/systm.h>
54#include <sys/bus.h>
55#include <sys/conf.h>
56#include <sys/disklabel.h>
57#include <sys/reboot.h>
58#include <sys/kernel.h>
59#include <sys/malloc.h>
60#include <sys/mount.h>
61#include <sys/cons.h>
62
63static void	configure_first (void *);
64static void	configure (void *);
65static void	configure_final (void *);
66
67SYSINIT(configure1, SI_SUB_CONFIGURE, SI_ORDER_FIRST, configure_first, NULL);
68/* SI_ORDER_SECOND is hookable */
69SYSINIT(configure2, SI_SUB_CONFIGURE, SI_ORDER_THIRD, configure, NULL);
70/* SI_ORDER_MIDDLE is hookable */
71SYSINIT(configure3, SI_SUB_CONFIGURE, SI_ORDER_ANY, configure_final, NULL);
72
73device_t nexus_dev;
74
75
76/*
77 * Determine i/o configuration for a machine.
78 */
79static void
80configure_first(void *dummy)
81{
82
83	device_add_child(root_bus, "nexus", 0);
84}
85
86static void
87configure(void *dummy)
88{
89
90	root_bus_configure();
91}
92
93static void
94configure_final(void *dummy)
95{
96
97	enable_interrupts(PSR_I | PSR_F);
98	cninit_finish();
99	cold = 0;
100}
101