1 /* $NetBSD: autoconf.c,v 1.31 2012/10/27 17:17:43 chs 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 1.31 2012/10/27 17:17:43 chs 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
42 extern char bootstring[];
43 extern int netboot;
44 extern int bootunit;
45 extern int bootpart;
46
47 void
cpu_configure(void)48 cpu_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
66 void
cpu_rootconf(void)67 cpu_rootconf(void)
68 {
69
70 printf("boot device: %s\n",
71 booted_device ? device_xname(booted_device) : "<unknown>");
72
73 rootconf();
74 }
75
76 void
device_register(device_t dev,void * aux)77 device_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