1/*	$NetBSD: autoconf.c,v 1.30 2012/07/29 18:05:40 mlelstv Exp $	*/
2
3/*
4 * Copyright (c) 2000 Soren S. Jorvang.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions, and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/cdefs.h>
29__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.30 2012/07/29 18:05:40 mlelstv Exp $");
30
31#include <sys/param.h>
32#include <sys/buf.h>
33#include <sys/cpu.h>
34#include <sys/conf.h>
35#include <sys/device.h>
36#include <sys/intr.h>
37#include <sys/systm.h>
38
39#include <dev/pci/pcivar.h>
40#include <dev/ata/atavar.h>
41
42extern char	bootstring[];
43extern int	netboot;
44extern int	bootunit;
45extern int	bootpart;
46
47void
48cpu_configure(void)
49{
50
51	(void)splhigh();
52
53	intr_init();
54
55	if (config_rootfound("mainbus", NULL) == NULL)
56		panic("no mainbus found");
57
58	/*
59	 * Hardware interrupts will be enabled in
60	 * sys/arch/mips/mips/mips3_clockintr.c:mips3_initclocks()
61	 * to avoid hardclock(9) by CPU INT5 before softclockintr is
62	 * initialized in initclocks().
63	 */
64}
65
66void
67cpu_rootconf(void)
68{
69
70	printf("boot device: %s\n",
71	    booted_device ? device_xname(booted_device) : "<unknown>");
72
73	rootconf();
74}
75
76void
77device_register(device_t dev, void *aux)
78{
79
80	if (booted_device != NULL)
81		return;
82
83	if (netboot == 1) {
84		/* check tlp0 on netboot */
85		if (device_class(dev) == DV_IFNET &&
86		    device_is_a(dev, "tlp")) {
87			struct pci_attach_args *pa = aux;
88
89			if (pa->pa_bus == 0 &&
90			    pa->pa_device == 7 &&
91			    pa->pa_function == 0)
92				booted_device = dev;
93		}
94	} else {
95		/* check wd channel and drive */
96		if (device_class(dev) == DV_DISK &&
97		    device_is_a(dev, "wd")) {
98			struct ata_device *adev = aux;
99			int unit;
100
101			unit = adev->adev_channel * 2 +
102			    adev->adev_drv_data->drive;
103			if (unit == bootunit) {
104				booted_device = dev;
105			}
106		}
107		/*
108		 * XXX Match up MBR boot specification with BSD disklabel
109		 *     for root?
110		 */
111		booted_partition = 0;
112	}
113}
114