1 /* $NetBSD: autoconf.c,v 1.21 2022/09/29 06:47:06 skrll Exp $ */
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
43 #include <sys/cdefs.h>
44 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.21 2022/09/29 06:47:06 skrll Exp $");
45
46 #include "opt_md.h"
47
48 #include <sys/param.h>
49 #include <sys/systm.h>
50 #include <sys/reboot.h>
51 #include <sys/disklabel.h>
52 #include <sys/device.h>
53 #include <sys/conf.h>
54 #include <sys/kernel.h>
55 #include <machine/bootconfig.h>
56 #include <machine/intr.h>
57 #include <dev/pci/pcivar.h>
58
59 #include "isa.h"
60
61 void isa_intr_init(void);
62
63 static void get_device(const char *name);
64 static void set_root_device(void);
65
66 /* Decode a device name to a major and minor number */
67
68 static void
get_device(const char * name)69 get_device(const char *name)
70 {
71 int unit, part;
72 char devname[16];
73 const char *cp;
74 device_t dv;
75
76 if (strncmp(name, "/dev/", 5) == 0)
77 name += 5;
78
79 if (devsw_name2blk(name, devname, sizeof(devname)) == -1)
80 return;
81
82 name += strlen(devname);
83 unit = part = 0;
84
85 cp = name;
86 while (*cp >= '0' && *cp <= '9')
87 unit = (unit * 10) + (*cp++ - '0');
88 if (cp == name)
89 return;
90
91 if (*cp >= 'a' && *cp <= ('a' + MAXPARTITIONS))
92 part = *cp - 'a';
93 else if (*cp != '\0' && *cp != ' ')
94 return;
95
96 if ((dv = device_find_by_driver_unit(devname, unit)) != NULL) {
97 booted_device = dv;
98 booted_partition = part;
99 }
100 }
101
102 static void
set_root_device(void)103 set_root_device(void)
104 {
105 char *ptr;
106
107 if (boot_file)
108 get_device(boot_file);
109 if (boot_args &&
110 get_bootconf_option(boot_args, "root", BOOTOPT_TYPE_STRING, &ptr))
111 get_device(ptr);
112 }
113
114 /*
115 * Set up the root device from the boot args
116 */
117 void
cpu_rootconf(void)118 cpu_rootconf(void)
119 {
120 set_root_device();
121 printf("boot device: %s\n",
122 booted_device != NULL ? device_xname(booted_device) : "<unknown>");
123 rootconf();
124 }
125
126
127 /*
128 * void cpu_configure()
129 *
130 * Configure all the root devices
131 * The root devices are expected to configure their own children
132 */
133 extern int footbridge_imask[NIPL];
134
135 void
cpu_configure(void)136 cpu_configure(void)
137 {
138 footbridge_intr_evcnt_attach();
139 /*
140 * Since various PCI interrupts could be routed via the ICU
141 * (for PCI devices in the bridge) we need to set up the ICU
142 * now so that these interrupts can be established correctly
143 * i.e. This is a hack.
144 */
145 isa_intr_init();
146
147
148 config_rootfound("mainbus", NULL);
149
150 #if defined(DEBUG)
151 /* Debugging information */
152 printf("ipl_bio=%08x ipl_net=%08x ipl_tty=%08x ipl_vm=%08x\n",
153 footbridge_imask[IPL_BIO], footbridge_imask[IPL_NET],
154 footbridge_imask[IPL_TTY], footbridge_imask[IPL_VM]);
155 printf("ipl_audio=%08x ipl_imp=%08x ipl_high=%08x ipl_serial=%08x\n",
156 footbridge_imask[IPL_AUDIO], footbridge_imask[IPL_CLOCK],
157 footbridge_imask[IPL_HIGH], footbridge_imask[IPL_SERIAL]);
158 #endif /* defined(DEBUG) */
159
160 /* Time to start taking interrupts so lets open the flood gates .... */
161 (void)spl0();
162 }
163
164 void
device_register(device_t dev,void * aux)165 device_register(device_t dev, void *aux)
166 {
167 device_t pdev;
168
169 if ((pdev = device_parent(dev)) != NULL &&
170 device_is_a(pdev, "pci")) {
171 /*
172 * cats builtin aceride is on 0:16:0
173 */
174 struct pci_attach_args *pa = aux;
175 if (((pa)->pa_bus == 0
176 && (pa)->pa_device == 16
177 && (pa)->pa_function == 0)) {
178 if (prop_dictionary_set_bool(device_properties(dev),
179 "ali1543-ide-force-compat-mode",
180 true) == false) {
181 printf("WARNING: unable to set "
182 "ali1543-ide-force-compat-mode "
183 "property for %s\n", device_xname(dev));
184 }
185 }
186 }
187 }
188 /* End of autoconf.c */
189