1/*	$NetBSD$	*/
2
3/*
4 * Copyright (c) 1994-1998 Mark Brinicombe.
5 * Copyright (c) 1994 Brini.
6 * All rights reserved.
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 Mark Brinicombe for
19 *      the NetBSD project.
20 * 4. The name of the company nor the name of the author may be used to
21 *    endorse or promote products derived from this software without specific
22 *    prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
25 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
27 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
28 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
30 * 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 * RiscBSD kernel project
37 *
38 * autoconf.c
39 *
40 * Autoconfiguration functions
41 *
42 * Created      : 08/10/94
43 */
44
45#include <sys/cdefs.h>
46__KERNEL_RCSID(0, "$NetBSD$");
47
48#include "opt_md.h"
49
50#include <sys/param.h>
51#include <sys/systm.h>
52#include <sys/reboot.h>
53#include <sys/disklabel.h>
54#include <sys/device.h>
55#include <sys/conf.h>
56#include <sys/kernel.h>
57#include <sys/malloc.h>
58#include <machine/bootconfig.h>
59#include <machine/intr.h>
60
61
62#include "podulebus.h"
63
64extern char *booted_kernel;
65
66extern dev_t dumpdev;
67
68void dumpconf(void);
69void isa_intr_init(void);
70
71#ifndef MEMORY_DISK_IS_ROOT
72static void get_device(char *name);
73static void set_root_device(void);
74#endif
75
76#ifndef MEMORY_DISK_IS_ROOT
77/* Decode a device name to a major and minor number */
78
79static void
80get_device(char *name)
81{
82	int unit, part;
83	char devname[16], *cp;
84	device_t dv;
85
86	if (strncmp(name, "/dev/", 5) == 0)
87		name += 5;
88
89	if (devsw_name2blk(name, devname, sizeof(devname)) == -1)
90		return;
91
92	name += strlen(devname);
93	unit = part = 0;
94
95	cp = name;
96	while (*cp >= '0' && *cp <= '9')
97		unit = (unit * 10) + (*cp++ - '0');
98	if (cp == name)
99		return;
100
101	if (*cp >= 'a' && *cp <= ('a' + MAXPARTITIONS))
102		part = *cp - 'a';
103	else if (*cp != '\0' && *cp != ' ')
104		return;
105
106	if ((dv = device_find_by_driver_unit(devname, unit)) != NULL) {
107		booted_device = dv;
108		booted_partition = part;
109	}
110}
111
112
113/* Set the rootdev variable from the root specifier in the boot args */
114
115static void
116set_root_device(void)
117{
118	char *ptr;
119
120	if (booted_kernel)
121		get_device(booted_kernel);
122	if (boot_args &&
123	    get_bootconf_option(boot_args, "root", BOOTOPT_TYPE_STRING, &ptr))
124		get_device(ptr);
125}
126#endif
127
128/*
129 * Set up the root device from the boot args
130 */
131void
132cpu_rootconf(void)
133{
134#ifndef MEMORY_DISK_IS_ROOT
135	set_root_device();
136
137	printf("boot device: %s\n",
138	    booted_device != NULL ? device_xname(booted_device) : "<unknown>");
139#endif
140	rootconf();
141}
142
143
144/*
145 * void cpu_configure()
146 *
147 * Configure all the root devices
148 * The root devices are expected to configure their own children
149 */
150
151void
152cpu_configure(void)
153{
154	/*
155	 * Configure all the roots.
156	 * We have to have a mainbus
157	 */
158
159	/*
160	 * Since the ICU is not standard on the ARM we don't know
161	 * if we have one until we find a bridge.
162	 * Since various PCI interrupts could be routed via the ICU
163	 * (for PCI devices in the bridge) we need to set up the ICU
164	 * now so that these interrupts can be established correctly
165	 * i.e. This is a hack.
166	 */
167
168	config_rootfound("mainbus", NULL);
169#if NPODULEBUS > 0
170	config_rootfound("podulebus", NULL);
171#endif	/* NPODULEBUS */
172
173#if defined(DEBUG)
174	/* Debugging information */
175	printf("ipl_bio=%08x ipl_net=%08x ipl_tty=%08x ipl_vm=%08x\n",
176	    irqmasks[IPL_BIO], irqmasks[IPL_NET], irqmasks[IPL_TTY],
177	    irqmasks[IPL_VM]);
178	printf("ipl_audio=%08x ipl_imp=%08x ipl_high=%08x ipl_serial=%08x\n",
179	    irqmasks[IPL_AUDIO], irqmasks[IPL_CLOCK], irqmasks[IPL_HIGH],
180	    irqmasks[IPL_SERIAL]);
181#endif /* defined(DEBUG) */
182
183	/* Time to start taking interrupts so lets open the flood gates .... */
184	(void)spl0();
185}
186
187void
188device_register(device_t dev, void *aux)
189{
190}
191/* End of autoconf.c */
192