1/*	$NetBSD: autoconf.c,v 1.8 2011/02/20 07:55:20 matt Exp $	*/
2
3/*-
4 * Copyright (c) 2001, 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.8 2011/02/20 07:55:20 matt Exp $");
31
32#include "opt_sbd.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/conf.h>
37#include <sys/device.h>
38#include <sys/intr.h>
39
40#include <machine/sbdvar.h>
41#include <machine/disklabel.h>
42
43char __boot_kernel_name[64];
44
45void
46cpu_configure(void)
47{
48
49	intr_init();
50
51	splhigh();
52	if (config_rootfound("mainbus", NULL) == NULL)
53		panic("no mainbus found");
54	spl0();
55}
56
57void
58cpu_rootconf(void)
59{
60	device_t dv;
61	char *p;
62	const char *bootdev_name, *netdev_name;
63	int unit, partition;
64
65	/* Extract boot device */
66	for (p = __boot_kernel_name; *p; p++) {
67		if (*p == ':') {
68			*p = '\0';
69			break;
70		}
71	}
72	p = __boot_kernel_name;
73
74	bootdev_name = 0;
75	unit = 0;
76
77	switch (SBD_INFO->machine) {
78#ifdef EWS4800_TR2
79	case MACHINE_TR2:
80		netdev_name = "iee0";
81		break;
82#endif
83#ifdef EWS4800_TR2A
84	case MACHINE_TR2A:
85		netdev_name = "le0";
86		break;
87#endif
88	default:
89		netdev_name = NULL;
90	}
91	partition = 0;
92
93	if (strncmp(p, "sd", 2) == 0) {
94		unit = p[2] - '0';
95		partition = p[3] - 'a';
96		if (unit >= 0 && unit <= 9 && partition >= 0 &&
97		    partition < MAXPARTITIONS) {
98			p[3] = '\0';
99			bootdev_name = __boot_kernel_name;
100		}
101	} else if (strncmp(p, "nfs", 3) == 0) {
102		bootdev_name = netdev_name;
103	} else if (strncmp(p, "mem", 3) == 0) {
104		int bootdev = (*platform.ipl_bootdev)();
105		if (bootdev == NVSRAM_BOOTDEV_HARDDISK)
106			bootdev_name = "sd0";
107		else if (bootdev == NVSRAM_BOOTDEV_NETWORK)
108			bootdev_name = netdev_name;
109		else
110			bootdev_name = 0;
111	}
112
113	if (bootdev_name &&
114	    (dv = device_find_by_xname(bootdev_name)) != NULL) {
115		booted_device = dv;
116		booted_partition = partition;
117	}
118	rootconf();
119}
120