ofw_autoconf.c revision 1.22
1 /* $NetBSD: ofw_autoconf.c,v 1.22 2018/08/17 15:54:35 macallan Exp $ */ 2 /* 3 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 4 * Copyright (C) 1995, 1996 TooLs GmbH. 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 by TooLs GmbH. 18 * 4. The name of TooLs GmbH may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 27 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 30 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: ofw_autoconf.c,v 1.22 2018/08/17 15:54:35 macallan Exp $"); 35 36 #ifdef ofppc 37 #include "gtpci.h" 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/conf.h> 42 #include <sys/device.h> 43 #include <sys/reboot.h> 44 #include <sys/systm.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #include <machine/autoconf.h> 49 #include <sys/bus.h> 50 51 #include <dev/ofw/openfirm.h> 52 #include <dev/marvell/marvellvar.h> 53 #include <dev/pci/pcireg.h> 54 #include <dev/pci/pcivar.h> 55 #if NGTPCI > 0 56 #include <dev/marvell/gtpcivar.h> 57 #endif 58 #include <dev/scsipi/scsi_all.h> 59 #include <dev/scsipi/scsipi_all.h> 60 #include <dev/scsipi/scsiconf.h> 61 #include <dev/ata/atavar.h> 62 #include <dev/ic/wdcvar.h> 63 64 #include <machine/pci_machdep.h> 65 66 #include <prop/proplib.h> 67 68 extern char bootpath[256]; 69 char cbootpath[256]; 70 static int boot_node = 0; /* points at boot device if we netboot */ 71 72 static void canonicalize_bootpath(void); 73 74 /* 75 * Determine device configuration for a machine. 76 */ 77 void 78 cpu_configure(void) 79 { 80 init_interrupt(); 81 canonicalize_bootpath(); 82 83 if (config_rootfound("mainbus", NULL) == NULL) 84 panic("configure: mainbus not configured"); 85 86 genppc_cpu_configure(); 87 } 88 89 static void 90 canonicalize_bootpath(void) 91 { 92 int node, len; 93 char *p, *lastp; 94 char last[32], type[32]; 95 96 /* 97 * If the bootpath doesn't start with a / then it isn't 98 * an OFW path and probably is an alias, so look up the alias 99 * and regenerate the full bootpath so device_register will work. 100 */ 101 if (bootpath[0] != '/' && bootpath[0] != '\0') { 102 int aliases = OF_finddevice("/aliases"); 103 char tmpbuf[100]; 104 char aliasbuf[256]; 105 if (aliases != 0) { 106 char *cp1, *cp2, *cp; 107 char saved_ch = '\0'; 108 cp1 = strchr(bootpath, ':'); 109 cp2 = strchr(bootpath, ','); 110 cp = cp1; 111 if (cp1 == NULL || (cp2 != NULL && cp2 < cp1)) 112 cp = cp2; 113 tmpbuf[0] = '\0'; 114 if (cp != NULL) { 115 strcpy(tmpbuf, cp); 116 saved_ch = *cp; 117 *cp = '\0'; 118 } 119 len = OF_getprop(aliases, bootpath, aliasbuf, 120 sizeof(aliasbuf)); 121 if (len > 0) { 122 if (aliasbuf[len-1] == '\0') 123 len--; 124 memcpy(bootpath, aliasbuf, len); 125 strcpy(&bootpath[len], tmpbuf); 126 } else { 127 *cp = saved_ch; 128 } 129 } 130 } 131 132 /* 133 * Strip kernel name. bootpath contains "OF-path"/"kernel". 134 * 135 * for example: 136 * /bandit@F2000000/gc@10/53c94@10000/sd@0,0/netbsd (OF-1.x) 137 * /pci/mac-io/ata-3@2000/disk@0:0/netbsd.new (OF-3.x) 138 */ 139 strcpy(cbootpath, bootpath); 140 while ((node = OF_finddevice(cbootpath)) == -1) { 141 if ((p = strrchr(cbootpath, '/')) == NULL) 142 break; 143 *p = '\0'; 144 } 145 146 printf("bootpath: %s\n", bootpath); 147 if (node == -1) { 148 /* Cannot canonicalize... use bootpath anyway. */ 149 strcpy(cbootpath, bootpath); 150 151 return; 152 } 153 154 /* see if we netbooted */ 155 len = OF_getprop(node, "device_type", type, sizeof(type) - 1); 156 if (len > -1) { 157 type[len] = 0; 158 if (strcmp(type, "network") == 0) { 159 boot_node = node; 160 } 161 } 162 163 /* 164 * cbootpath is a valid OF path. Use package-to-path to 165 * canonicalize pathname. 166 */ 167 168 /* Back up the last component for later use. */ 169 if ((p = strrchr(cbootpath, '/')) != NULL) 170 strcpy(last, p + 1); 171 else 172 last[0] = '\0'; 173 174 memset(cbootpath, 0, sizeof(cbootpath)); 175 OF_package_to_path(node, cbootpath, sizeof(cbootpath) - 1); 176 177 /* 178 * OF_1.x (at least) always returns addr == 0 for 179 * SCSI disks (i.e. "/bandit (at) .../.../sd@0,0"). 180 * also check for .../disk@ which some Adaptec firmware uses 181 */ 182 lastp = strrchr(cbootpath, '/'); 183 if (lastp != NULL) { 184 lastp++; 185 if ((strncmp(lastp, "sd@", 3) == 0 186 && strncmp(last, "sd@", 3) == 0) || 187 (strncmp(lastp, "disk@", 5) == 0 188 && strncmp(last, "disk@", 5) == 0)) 189 strcpy(lastp, last); 190 } else { 191 lastp = cbootpath; 192 } 193 194 /* 195 * At this point, cbootpath contains like: 196 * "/pci@80000000/mac-io@10/ata-3@20000/disk" 197 * 198 * The last component may have no address... so append it. 199 */ 200 if (strchr(lastp, '@') == NULL) { 201 /* Append it. */ 202 if ((p = strrchr(last, '@')) != NULL) 203 strcat(cbootpath, p); 204 } 205 206 if ((p = strrchr(lastp, ':')) != NULL) { 207 *p++ = '\0'; 208 /* booted_partition = *p - '0'; XXX correct? */ 209 } 210 } 211 212 /* 213 * device_register is called from config_attach as each device is 214 * attached. We use it to find the NetBSD device corresponding to the 215 * known OF boot device. 216 */ 217 void 218 device_register(device_t dev, void *aux) 219 { 220 static device_t parent; 221 static char *bp = bootpath + 1, *cp = cbootpath; 222 unsigned long addr, addr2; 223 char *p; 224 #if NGTPCI > 0 225 struct powerpc_bus_space *gtpci_mem_bs_tag = NULL; 226 #endif 227 228 /* Skip over devices not represented in the OF tree. */ 229 if (device_is_a(dev, "mainbus")) { 230 parent = dev; 231 return; 232 } 233 234 /* skip over CPUs */ 235 if (device_is_a(dev, "cpu")) { 236 return; 237 } 238 239 if (device_is_a(dev, "valkyriefb")) { 240 struct confargs *ca = aux; 241 prop_dictionary_t dict; 242 243 dict = device_properties(dev); 244 copy_disp_props(dev, ca->ca_node, dict); 245 } 246 247 #if NGTPCI > 0 248 if (device_is_a(dev, "gtpci")) { 249 extern struct gtpci_prot gtpci0_prot, gtpci1_prot; 250 extern struct powerpc_bus_space 251 gtpci0_io_bs_tag, gtpci0_mem_bs_tag, 252 gtpci1_io_bs_tag, gtpci1_mem_bs_tag; 253 extern struct genppc_pci_chipset 254 genppc_gtpci0_chipset, genppc_gtpci1_chipset; 255 256 struct marvell_attach_args *mva = aux; 257 struct gtpci_prot *gtpci_prot; 258 struct powerpc_bus_space *gtpci_io_bs_tag; 259 struct genppc_pci_chipset *genppc_gtpci_chipset; 260 prop_dictionary_t dict = device_properties(dev); 261 prop_data_t prot, io_bs_tag, mem_bs_tag, pc; 262 int iostart, ioend; 263 264 if (mva->mva_unit == 0) { 265 gtpci_prot = >pci0_prot; 266 gtpci_io_bs_tag = >pci0_io_bs_tag; 267 gtpci_mem_bs_tag = >pci0_mem_bs_tag; 268 genppc_gtpci_chipset = &genppc_gtpci0_chipset; 269 iostart = 0; 270 ioend = 0; 271 } else { 272 gtpci_prot = >pci1_prot; 273 gtpci_io_bs_tag = >pci1_io_bs_tag; 274 gtpci_mem_bs_tag = >pci1_mem_bs_tag; 275 genppc_gtpci_chipset = &genppc_gtpci1_chipset; 276 iostart = 0x1400; 277 ioend = 0xffff; 278 } 279 280 prot = prop_data_create_data_nocopy( 281 gtpci_prot, sizeof(struct gtpci_prot)); 282 KASSERT(prot != NULL); 283 prop_dictionary_set(dict, "prot", prot); 284 prop_object_release(prot); 285 286 io_bs_tag = prop_data_create_data_nocopy( 287 gtpci_io_bs_tag, sizeof(struct powerpc_bus_space)); 288 KASSERT(io_bs_tag != NULL); 289 prop_dictionary_set(dict, "io-bus-tag", io_bs_tag); 290 prop_object_release(io_bs_tag); 291 mem_bs_tag = prop_data_create_data_nocopy( 292 gtpci_mem_bs_tag, sizeof(struct powerpc_bus_space)); 293 KASSERT(mem_bs_tag != NULL); 294 prop_dictionary_set(dict, "mem-bus-tag", mem_bs_tag); 295 prop_object_release(mem_bs_tag); 296 297 genppc_gtpci_chipset->pc_conf_v = device_private(dev); 298 pc = prop_data_create_data_nocopy(genppc_gtpci_chipset, 299 sizeof(struct genppc_pci_chipset)); 300 KASSERT(pc != NULL); 301 prop_dictionary_set(dict, "pci-chipset", pc); 302 prop_object_release(pc); 303 304 prop_dictionary_set_uint64(dict, "iostart", iostart); 305 prop_dictionary_set_uint64(dict, "ioend", ioend); 306 prop_dictionary_set_uint64(dict, "memstart", 307 gtpci_mem_bs_tag->pbs_base); 308 prop_dictionary_set_uint64(dict, "memend", 309 gtpci_mem_bs_tag->pbs_limit - 1); 310 prop_dictionary_set_uint32(dict, "cache-line-size", 311 CACHELINESIZE); 312 } 313 #endif 314 if (device_is_a(dev, "atapibus") || 315 #ifndef PMAC_G5 316 device_is_a(dev, "pci") || 317 #endif 318 device_is_a(dev, "scsibus") || device_is_a(dev, "atabus")) 319 return; 320 321 if (device_is_a(device_parent(dev), "pci")) { 322 struct pci_attach_args *pa = aux; 323 prop_dictionary_t dict; 324 prop_bool_t b; 325 int node; 326 char name[32]; 327 328 dict = device_properties(dev); 329 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 330 331 /* enable configuration of irq 14/15 for VIA native IDE */ 332 if (device_is_a(dev, "viaide") && 333 strncmp(model_name, "Pegasos", 7) == 0) { 334 b = prop_bool_create(true); 335 KASSERT(b != NULL); 336 (void)prop_dictionary_set(dict, 337 "use-compat-native-irq", b); 338 prop_object_release(b); 339 } 340 341 if (node != 0) { 342 int pci_class = 0; 343 344 prop_dictionary_set_uint32(dict, "device_node", node); 345 346 if (node == boot_node) { 347 /* we netbooted from whatever this is */ 348 booted_device = dev; 349 } 350 /* see if this is going to be console */ 351 memset(name, 0, sizeof(name)); 352 OF_getprop(node, "device_type", name, sizeof(name)); 353 354 OF_getprop(node, "class-code", &pci_class, 355 sizeof pci_class); 356 pci_class = (pci_class >> 16) & 0xff; 357 358 if (strcmp(name, "display") == 0 || 359 strcmp(name, "ATY,DDParent") == 0 || 360 pci_class == PCI_CLASS_DISPLAY) { 361 /* setup display properties for fb driver */ 362 prop_dictionary_set_bool(dict, "is_console", 0); 363 copy_disp_props(dev, node, dict); 364 } 365 if (pci_class == PCI_CLASS_NETWORK) { 366 of_to_dataprop(dict, node, "local-mac-address", 367 "mac-address"); 368 of_to_dataprop(dict, node, "shared-pins", 369 "shared-pins"); 370 } 371 } 372 #ifdef macppc 373 /* 374 * XXX 375 * some macppc boxes have onboard devices where parts or all of 376 * the PCI_INTERRUPT register are hardwired to 0 377 */ 378 if (pa->pa_intrpin == 0) 379 pa->pa_intrpin = 1; 380 #endif 381 } 382 383 if (booted_device) 384 return; 385 386 /* 387 * Skip over devices that are really just layers of NetBSD 388 * autoconf(9) we should just skip as they do not have any 389 * OFW devices. 390 * XXX except on G5, where we have /ht/pci* instead of /pci* 391 */ 392 if (device_is_a(device_parent(dev), "atapibus") || 393 device_is_a(device_parent(dev), "atabus") || 394 #ifndef PMAC_G5 395 device_is_a(device_parent(dev), "pci") || 396 #endif 397 device_is_a(device_parent(dev), "scsibus")) { 398 if (device_parent(device_parent(dev)) != parent) { 399 return; 400 } 401 } else { 402 if (device_parent(dev) != parent) 403 return; 404 } 405 406 /* 407 * Get the address part of the current path component. The 408 * last component of the canonical bootpath may have no 409 * address (eg, "disk"), in which case we need to get the 410 * address from the original bootpath instead. 411 */ 412 p = strchr(cp, '@'); 413 if (!p) { 414 if (bp) 415 p = strchr(bp, '@'); 416 if (!p) 417 addr = 0; 418 else 419 addr = strtoul(p + 1, &p, 16); 420 } else 421 addr = strtoul(p + 1, &p, 16); 422 423 /* if the current path has more address, grab that too */ 424 if (p && *p == ',') 425 addr2 = strtoul(p + 1, &p, 16); 426 else 427 addr2 = 0; 428 429 if (device_is_a(device_parent(dev), "mainbus")) { 430 struct confargs *ca = aux; 431 if (strcmp(ca->ca_name, "ofw") == 0) /* XXX */ 432 return; 433 if (strcmp(ca->ca_name, "gt") == 0) 434 parent = dev; 435 if (addr != ca->ca_reg[0]) 436 return; 437 if (addr2 != 0 && addr2 != ca->ca_reg[1]) 438 return; 439 } else if (device_is_a(device_parent(dev), "gt")) { 440 /* 441 * Special handle for MV64361 on PegasosII(ofppc). 442 */ 443 if (device_is_a(dev, "mvgbec")) { 444 /* 445 * Fix cp to /port@N from /ethernet/portN. (N is 0...2) 446 */ 447 static char fix_cp[8] = "/port@N"; 448 449 if (strlen(cp) != 15 || 450 strncmp(cp, "/ethernet/port", 14) != 0) 451 return; 452 fix_cp[7] = *(cp + 15); 453 p = fix_cp; 454 #if NGTPCI > 0 455 } else if (device_is_a(dev, "gtpci")) { 456 if (gtpci_mem_bs_tag != NULL && 457 addr != gtpci_mem_bs_tag->pbs_base) 458 return; 459 #endif 460 } else 461 return; 462 } else if (device_is_a(device_parent(dev), "pci")) { 463 struct pci_attach_args *pa = aux; 464 465 if (addr != pa->pa_device || 466 addr2 != pa->pa_function) 467 return; 468 } else if (device_is_a(device_parent(dev), "obio")) { 469 struct confargs *ca = aux; 470 471 if (addr != ca->ca_reg[0]) 472 return; 473 } else if (device_is_a(device_parent(dev), "scsibus") || 474 device_is_a(device_parent(dev), "atapibus")) { 475 struct scsipibus_attach_args *sa = aux; 476 477 /* periph_target is target for scsi, drive # for atapi */ 478 if (addr != sa->sa_periph->periph_target) 479 return; 480 } else if (device_is_a(device_parent(device_parent(dev)), "pciide") || 481 device_is_a(device_parent(device_parent(dev)), "viaide") || 482 device_is_a(device_parent(device_parent(dev)), "slide")) { 483 struct ata_device *adev = aux; 484 485 if (addr != adev->adev_channel || 486 addr2 != adev->adev_drv_data->drive) 487 return; 488 } else if (device_is_a(device_parent(device_parent(dev)), "wdc")) { 489 struct ata_device *adev = aux; 490 491 if (addr != adev->adev_drv_data->drive) 492 return; 493 } else if (device_is_a(dev, "pci")) { 494 if (addr != device_unit(dev)) 495 return; 496 } else if (device_is_a(device_parent(dev), "atabus")) { 497 /* 498 * XXX 499 * on svwsata this is the channel number and we ignore the 500 * drive number which is always 0 anyway 501 * needs to be revisited for other (S)ATA cards 502 */ 503 struct ata_device *adev = aux; 504 if (addr != adev->adev_channel) 505 return; 506 /* we have our match, cut off the rest */ 507 if (p) *p = 0; 508 } else 509 return; 510 511 /* If we reach this point, then dev is a match for the current 512 * path component. 513 */ 514 if (p && *p) { 515 parent = dev; 516 cp = p; 517 bp = strchr(bp, '/'); 518 if (bp) 519 bp++; 520 return; 521 } else { 522 booted_device = dev; 523 booted_partition = 0; /* XXX -- should be extracted from bootpath */ 524 return; 525 } 526 } 527 528 /* 529 * Setup root device. 530 * Configure swap area. 531 */ 532 void 533 cpu_rootconf(void) 534 { 535 printf("boot device: %s\n", 536 booted_device ? device_xname(booted_device) : "<unknown>"); 537 538 rootconf(); 539 } 540 541 /* 542 * Find OF-device corresponding to the PCI device. 543 */ 544 int 545 pcidev_to_ofdev(pci_chipset_tag_t pc, pcitag_t tag) 546 { 547 int bus, dev, func; 548 u_int reg[5]; 549 int p, q; 550 int l, b, d, f; 551 552 pci_decompose_tag(pc, tag, &bus, &dev, &func); 553 554 for (q = OF_peer(0); q; q = p) { 555 l = OF_getprop(q, "assigned-addresses", reg, sizeof(reg)); 556 if (l > 4) { 557 b = (reg[0] >> 16) & 0xff; 558 d = (reg[0] >> 11) & 0x1f; 559 f = (reg[0] >> 8) & 0x07; 560 561 if (b == bus && d == dev && f == func) 562 return q; 563 } 564 if ((p = OF_child(q))) 565 continue; 566 while (q) { 567 if ((p = OF_peer(q))) 568 break; 569 q = OF_parent(q); 570 } 571 } 572 return 0; 573 } 574
Indexes created Mon Sep 29 13:09:55 GMT 2025