1 /* $NetBSD: autoconf.c,v 1.80 2012/10/13 06:51:22 tsutsui Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR 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 * from: Utah Hdr: autoconf.c 1.31 91/01/21 37 * 38 * @(#)autoconf.c 8.1 (Berkeley) 6/10/93 39 */ 40 41 #include <sys/cdefs.h> 42 __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v 1.80 2012/10/13 06:51:22 tsutsui Exp $"); 43 44 #include <sys/param.h> 45 #include <sys/conf.h> 46 #include <sys/device.h> 47 #include <sys/intr.h> 48 #include <sys/reboot.h> 49 #include <sys/systm.h> 50 51 #include <pmax/autoconf.h> 52 #include <pmax/sysconf.h> 53 54 #include <pmax/pmax/pmaxtype.h> 55 56 #include <dev/tc/tcvar.h> 57 58 #include <dev/scsipi/scsi_all.h> 59 #include <dev/scsipi/scsipi_all.h> 60 #include <dev/scsipi/scsiconf.h> 61 62 #include "opt_dec_3100.h" 63 #include "opt_dec_5100.h" 64 65 struct intrhand intrtab[MAX_DEV_NCOOKIES]; 66 static device_t booted_controller; 67 static int booted_slot, booted_unit; 68 static const char *booted_protocol; 69 70 /* 71 * Configure all devices on system 72 */ 73 void 74 cpu_configure(void) 75 { 76 77 /* Kick off autoconfiguration. */ 78 (void)splhigh(); 79 80 /* Interrupt initialization. */ 81 intr_init(); 82 83 if (config_rootfound("mainbus", NULL) == NULL) 84 panic("no mainbus found"); 85 86 /* Reset any bus errors due to probing nonexistent devices. */ 87 (*platform.bus_reset)(); 88 89 /* Configuration is finished, turn on interrupts. */ 90 spl0(); /* enable all source forcing SOFT_INTs cleared */ 91 } 92 93 /* 94 * Look at the string 'cp' and decode the boot device. Boot names 95 * can be something like 'rz(0,0,0)vmunix' or '5/rz0/vmunix'. 96 * 97 * 2100/3100/5100 allows abbrivation; 98 * dev(controller[,uni-number[,partition-number]]])[filename] 99 */ 100 void 101 makebootdev(char *cp) 102 { 103 booted_device = NULL; 104 booted_slot = booted_unit = booted_partition = 0; 105 booted_protocol = NULL; 106 107 #if defined(DEC_3100) || defined(DEC_5100) 108 if (cp[0] == 'r' && cp[1] == 'z' && cp[2] == '(') { 109 cp += 3; 110 if (*cp >= '0' && *cp <= '9') 111 booted_slot = *cp++ - '0'; 112 if (*cp == ',') 113 cp += 1; 114 if (*cp >= '0' && *cp <= '9') 115 booted_unit = *cp++ - '0'; 116 if (*cp == ',') 117 cp += 1; 118 if (*cp >= '0' && *cp <= '9') 119 booted_partition = *cp - '0'; 120 booted_protocol = "SCSI"; 121 return; 122 } 123 if (strncmp(cp, "tftp(", 5) == 0) { 124 booted_protocol = "BOOTP"; 125 return; 126 } 127 if (strncmp(cp, "mop(", 4) == 0) { 128 booted_protocol = "MOP"; 129 return; 130 } 131 #endif 132 133 if (cp[0] >= '0' && cp[0] <= '9' && cp[1] == '/') { 134 booted_slot = cp[0] - '0'; 135 if (cp[2] == 'r' && cp[3] == 'z' 136 && cp[4] >= '0' && cp[4] <= '9') { 137 booted_protocol = "SCSI"; 138 booted_unit = cp[4] - '0'; 139 } 140 else if (strncmp(cp+2, "tftp", 4) == 0) 141 booted_protocol = "BOOTP"; 142 else if (strncmp(cp+2, "mop", 3) == 0) 143 booted_protocol = "MOP"; 144 } 145 } 146 147 void 148 cpu_rootconf(void) 149 { 150 151 printf("boot device: %s\n", 152 booted_device ? device_xname(booted_device) : "<unknown>"); 153 154 rootconf(); 155 } 156 157 /* 158 * Try to determine the boot device. 159 */ 160 void 161 device_register(device_t dev, void *aux) 162 { 163 static int found, initted, scsiboot, netboot; 164 static device_t ioasicdev; 165 device_t parent = device_parent(dev); 166 167 if (found) 168 return; 169 170 if (!initted) { 171 scsiboot = strcmp(booted_protocol, "SCSI") == 0; 172 netboot = (strcmp(booted_protocol, "BOOTP") == 0) || 173 (strcmp(booted_protocol, "MOP") == 0); 174 initted = 1; 175 } 176 177 /* 178 * Check if IOASIC was the boot slot. 179 */ 180 if (device_is_a(dev, "ioasic")) { 181 struct tc_attach_args *ta = aux; 182 183 if (ta->ta_slot == booted_slot) 184 ioasicdev = dev; 185 return; 186 } 187 188 /* 189 * Check for ASC controller on either IOASIC or TC option card. 190 */ 191 if (scsiboot && device_is_a(dev, "asc")) { 192 struct tc_attach_args *ta = aux; 193 194 /* 195 * If boot was from IOASIC controller, ioasicdev will 196 * be the ASC parent. 197 * If boot was from a TC option card, the TC slot number 198 * of the ASC will match the boot slot. 199 */ 200 if (parent == ioasicdev || 201 ta->ta_slot == booted_slot) { 202 booted_controller = dev; 203 return; 204 } 205 } 206 207 /* 208 * If an SII device is configured, it's currently the only 209 * possible SCSI boot device. 210 */ 211 if (scsiboot && device_is_a(dev, "sii")) { 212 booted_controller = dev; 213 return; 214 } 215 216 /* 217 * If we found the boot controller, if check disk/tape/cdrom device 218 * on that controller matches. 219 */ 220 if (booted_controller && 221 (device_is_a(dev, "sd") || 222 device_is_a(dev, "st") || 223 device_is_a(dev, "cd"))) { 224 struct scsipibus_attach_args *sa = aux; 225 226 if (device_parent(parent) != booted_controller) 227 return; 228 if (booted_unit != sa->sa_periph->periph_target) 229 return; 230 booted_device = dev; 231 found = 1; 232 return; 233 } 234 235 /* 236 * Check if netboot device. 237 */ 238 if (netboot) { 239 struct tc_attach_args *ta = aux; 240 241 if (( 242 #if defined(DEC_3100) || defined(DEC_5100) 243 /* Only one Ethernet interface on 2100/3100/5100. */ 244 systype == DS_PMAX || systype == DS_MIPSMATE || 245 #endif 246 /* Only one Ethernet interface at IOASIC. */ 247 parent == ioasicdev) 248 && device_is_a(dev, "le")) { 249 booted_device = dev; 250 found = 1; 251 return; 252 } 253 254 /* allow any TC network adapter */ 255 if (device_class(dev) == DV_IFNET && 256 device_is_a(parent, "tc") && 257 ta->ta_slot == booted_slot) { 258 booted_device = dev; 259 found = 1; 260 return; 261 } 262 } 263 } 264
Indexes created Sun Oct 25 00:26:45 UTC 2026