1 /* $NetBSD: autoconf.c,v 1.45 2013/12/16 15:45:29 mrg Exp $ */
2
3 /*
4 * Copyright (c) 2000 Soren S. Jorvang
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 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed for the
18 * NetBSD Project. See http://www.NetBSD.org/ for
19 * information about NetBSD.
20 * 4. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 #include <sys/cdefs.h>
36 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.45 2013/12/16 15:45:29 mrg Exp $");
37
38 #include "opt_ddb.h"
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/buf.h>
43 #include <sys/conf.h>
44 #include <sys/device.h>
45
46 #include <machine/cpu.h>
47 #include <machine/sysconf.h>
48 #include <machine/machtype.h>
49 #include <machine/autoconf.h>
50 #include <machine/vmparam.h> /* for PAGE_SIZE */
51
52 #include <dev/pci/pcivar.h>
53
54 #include <dev/scsipi/scsi_all.h>
55 #include <dev/scsipi/scsipi_all.h>
56 #include <dev/scsipi/scsiconf.h>
57
58 static device_t booted_controller = NULL;
59 static int booted_slot, booted_unit;
60 static const char *booted_protocol = NULL;
61
62 extern struct platform platform;
63
64 void
cpu_configure(void)65 cpu_configure(void)
66 {
67
68 (void)splhigh();
69 if (config_rootfound("mainbus", NULL) == NULL)
70 panic("no mainbus found");
71
72 /*
73 * Clear latched bus error registers which may have been
74 * caused by probes for non-existent devices.
75 */
76 (*platform.bus_reset)();
77
78 /*
79 * Hardware interrupts will be enabled in cpu_initclocks(9)
80 * to avoid hardclock(9) by CPU INT5 before softclockintr is
81 * initialized in initclocks().
82 */
83 }
84
85 /*
86 * Look at the string 'cp' and decode the boot device. Boot names
87 * can be something like 'bootp(0)netbsd' or
88 * 'scsi(0)disk(1)rdisk(0)partition(0)netbsd' or
89 * 'dksc(0,1,0)netbsd'
90 */
91 void
makebootdev(const char * cp)92 makebootdev(const char *cp)
93 {
94 if (booted_protocol != NULL)
95 return;
96
97 booted_slot = booted_unit = booted_partition = 0;
98
99 if (strncmp(cp, "pci(", 4) == 0) {
100 cp += 4;
101
102 while (*cp && *cp != ')')
103 cp++;
104
105 if (*cp != ')')
106 return;
107
108 cp++;
109 }
110
111 if (strncmp(cp, "scsi(", 5) == 0) {
112 cp += 5;
113 if (*cp >= '0' && *cp <= '9')
114 booted_slot = *cp++ - '0';
115 if (strncmp(cp, ")disk(", 6) == 0) {
116 cp += 6;
117 if (*cp >= '0' && *cp <= '9')
118 booted_unit = *cp++ - '0';
119 }
120 /* XXX can rdisk() ever be other than 0? */
121 if (strncmp(cp, ")rdisk(0)partition(", 19) == 0) {
122 cp += 19;
123 while (*cp >= '0' && *cp <= '9')
124 booted_partition =
125 booted_partition * 10 + *cp++ - '0';
126 }
127 if (*cp != ')')
128 return; /* XXX ? */
129 booted_protocol = "SCSI";
130 return;
131 }
132 if (strncmp(cp, "dksc(", 5) == 0) {
133 cp += 5;
134 if (*cp >= '0' && *cp <= '9')
135 booted_slot = *cp++ - '0';
136 if (*cp == ',') {
137 ++cp;
138 if (*cp >= '0' || *cp <= '9')
139 booted_unit = *cp++ - '0';
140 if (*cp == ',') {
141 ++cp;
142 if (*cp >= '0' && *cp <= '9')
143 booted_partition = *cp++ - '0';
144 }
145 }
146 if (*cp != ')')
147 return; /* XXX ??? */
148 booted_protocol = "SCSI";
149 return;
150 }
151 if (strncmp(cp, "bootp(", 6) == 0) {
152 /* XXX controller number? Needed to
153 handle > 1 network controller */
154 booted_protocol = "BOOTP";
155 return;
156 }
157 }
158
159 void
cpu_rootconf(void)160 cpu_rootconf(void)
161 {
162 printf("boot device: %s\n",
163 booted_device ? device_xname(booted_device) : "<unknown>");
164
165 rootconf();
166 }
167
168 /*
169 * Try to determine the boot device and set up some device properties
170 * to handle machine dependent quirks.
171 */
172
173 #define BUILTIN_AHC_P(pa) \
174 (((pa)->pa_bus == 0 && (pa)->pa_device == 1 && (pa)->pa_function == 0) || \
175 ((pa)->pa_bus == 0 && (pa)->pa_device == 2 && (pa)->pa_function == 0))
176
177 void
device_register(device_t dev,void * aux)178 device_register(device_t dev, void *aux)
179 {
180 static int found, initted, scsiboot, netboot;
181 device_t parent = device_parent(dev);
182
183 if (mach_type == MACH_SGI_IP32 &&
184 parent != NULL && device_is_a(parent, "pci")) {
185 struct pci_attach_args *pa = aux;
186
187 if (BUILTIN_AHC_P(pa)) {
188 if (prop_dictionary_set_bool(device_properties(dev),
189 "aic7xxx-use-target-defaults", true) == false) {
190 printf("WARNING: unable to set "
191 "aic7xxx-use-target-defaults property "
192 "for %s\n", device_xname(dev));
193 }
194
195 if (prop_dictionary_set_bool(device_properties(dev),
196 "aic7xxx-override-ultra", true) == false) {
197 printf("WARNING: unable to set "
198 "aic7xxx-override-ultra property for %s\n",
199 device_xname(dev));
200 }
201 }
202 }
203
204 /*
205 * The Set Engineering GIO Fast Ethernet controller has restrictions
206 * on DMA boundaries.
207 */
208 if (device_is_a(dev, "tl")) {
209 device_t grandparent;
210 prop_number_t gfe_boundary;
211
212 grandparent = device_parent(parent);
213 if (grandparent != NULL && device_is_a(grandparent, "giopci")) {
214 gfe_boundary = prop_number_create_integer(PAGE_SIZE);
215 KASSERT(gfe_boundary != NULL);
216
217 if (prop_dictionary_set(device_properties(dev),
218 "tl-dma-page-boundary", gfe_boundary) == false) {
219 printf("WARNING: unable to set "
220 "tl-dma-page-boundary property "
221 "for %s\n", device_xname(dev));
222 }
223 prop_object_release(gfe_boundary);
224 return;
225 }
226 }
227
228 if (found)
229 return;
230
231 if (!initted && booted_protocol) {
232 scsiboot = strcmp(booted_protocol, "SCSI") == 0;
233 netboot = (strcmp(booted_protocol, "BOOTP") == 0);
234 initted = 1;
235 }
236
237 /*
238 * Handle SCSI boot device definitions
239 * wdsc -- IP12/22/24
240 * ahc -- IP32
241 */
242 if ( (scsiboot && device_is_a(dev, "wdsc")) ||
243 (scsiboot && device_is_a(dev, "ahc")) ) {
244 /* XXX device_unit() abuse */
245 if (device_unit(dev) == booted_slot)
246 booted_controller = dev;
247 return;
248 }
249
250 /*
251 * If we found the boot controller, if check disk/tape/cdrom device
252 * on that controller matches.
253 */
254 if (booted_controller &&
255 (device_is_a(dev, "sd") ||
256 device_is_a(dev, "st") ||
257 device_is_a(dev, "cd"))) {
258 struct scsipibus_attach_args *sa = aux;
259
260 if (device_parent(parent) != booted_controller)
261 return;
262 if (booted_unit != sa->sa_periph->periph_target)
263 return;
264 booted_device = dev;
265 found = 1;
266 return;
267 }
268
269 /*
270 * Check if netboot device.
271 */
272 if (netboot &&
273 (device_is_a(dev, "sq") ||
274 device_is_a(dev, "mec"))) {
275 /* XXX Check unit number? (Which we don't parse yet) */
276 booted_device = dev;
277 found = 1;
278 return;
279 }
280 }
281