autoconf.c revision 1.1 
1/*	$NetBSD: autoconf.c,v 1.1 2026/01/09 22:54:28 jmcneill Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * William Jolitz.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)autoconf.c	7.1 (Berkeley) 5/9/91
35 */
36
37/*
38 * Setup the system to run on the current machine.
39 *
40 * Configure() is called at boot time and initializes the vba
41 * device tables and the memory controller monitoring.  Available
42 * devices are determined (from possibilities mentioned in ioconf.c),
43 * and the drivers are initialized.
44 */
45
46#include <sys/cdefs.h>
47__KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.1 2026/01/09 22:54:28 jmcneill Exp $");
48
49#include <sys/param.h>
50#include <sys/systm.h>
51#include <sys/buf.h>
52#include <sys/disklabel.h>
53#include <sys/conf.h>
54#include <sys/reboot.h>
55#include <sys/device.h>
56#include <sys/boot_flag.h>
57
58#include <powerpc/pte.h>
59
60#include <machine/wii.h>
61#include <machine/wiiu.h>
62
63void findroot(void);
64void disable_intr(void);
65void enable_intr(void);
66
67static void parse_cmdline(void);
68const char *get_cmdline(const char *);
69
70/*
71 * Determine i/o configuration for a machine.
72 */
73void
74cpu_configure(void)
75{
76	parse_cmdline();
77
78	if (config_rootfound("mainbus", NULL) == NULL)
79		panic("configure: mainbus not configured");
80
81	genppc_cpu_configure();
82
83	if (!wiiu_plat) {
84		wii_slot_led(false);
85	}
86}
87
88void
89cpu_rootconf(void)
90{
91	findroot();
92
93	printf("boot device: %s\n",
94	    booted_device ? device_xname(booted_device) : "<unknown>");
95
96	rootconf();
97}
98
99void
100findroot(void)
101{
102}
103
104void
105device_register(device_t dev, void *aux)
106{
107	if (bootspec != NULL && strcmp(device_xname(dev), bootspec) == 0) {
108		booted_device = dev;
109		booted_partition = 0;
110	}
111}
112
113static void
114parse_cmdline(void)
115{
116	static char bootspec_buf[64];
117	extern char wii_cmdline[];
118	const char *cmdline = wii_cmdline;
119
120	while (*cmdline != '\0') {
121		const char *cp = cmdline;
122
123		if (*cp == '-') {
124			for (cp++; *cp != '\0'; cp++) {
125				BOOT_FLAG(*cp, boothowto);
126			}
127		} else if (strncmp(cp, "root=", 5) == 0) {
128			snprintf(bootspec_buf, sizeof(bootspec_buf), "%s",
129			    cp + 5);
130			if (bootspec_buf[0] != '\0') {
131				bootspec = bootspec_buf;
132				booted_method = "bootinfo/rootdevice";
133			}
134		}
135
136		cmdline += strlen(cmdline) + 1;
137	}
138}
139