ofw_autoconf.c revision 1.21.4.2
1 /* $NetBSD: ofw_autoconf.c,v 1.21.4.2 2020/04/08 14:07:50 martin 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 1.21.4.2 2020/04/08 14:07:50 martin 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); 140 141 if ((node = OF_finddevice("/options")) == -1 || 142 OF_getprop(node, "qemu_boot_hack", type, sizeof(type) - 1) == -1 || 143 type[0] != 'y') { 144 while ((node = OF_finddevice(cbootpath)) == -1) { 145 if ((p = strrchr(cbootpath, '/')) == NULL) 146 break; 147 *p = '\0'; 148 } 149 } else { 150 node = -1; 151 } 152 153 printf("bootpath: %s\n", bootpath); 154 if (node == -1) { 155 /* Cannot canonicalize... use bootpath anyway. */ 156 strcpy(cbootpath, bootpath); 157 158 return; 159 } 160 161 /* see if we netbooted */ 162 len = OF_getprop(node, "device_type", type, sizeof(type) - 1); 163 if (len > -1) { 164 type[len] = 0; 165 if (strcmp(type, "network") == 0) { 166 boot_node = node; 167 } 168 } 169 170 /* 171 * cbootpath is a valid OF path. Use package-to-path to 172 * canonicalize pathname. 173 */ 174 175 /* Back up the last component for later use. */ 176 if ((p = strrchr(cbootpath, '/')) != NULL) 177 strcpy(last, p + 1); 178 else 179 last[0] = '\0'; 180 181 memset(cbootpath, 0, sizeof(cbootpath)); 182 OF_package_to_path(node, cbootpath, sizeof(cbootpath) - 1); 183 184 /* 185 * OF_1.x (at least) always returns addr == 0 for 186 * SCSI disks (i.e. "/bandit (at) .../.../sd@0,0"). 187 * also check for .../disk@ which some Adaptec firmware uses 188 */ 189 lastp = strrchr(cbootpath, '/'); 190 if (lastp != NULL) { 191 lastp++; 192 if ((strncmp(lastp, "sd@", 3) == 0 193 && strncmp(last, "sd@", 3) == 0) || 194 (strncmp(lastp, "disk@", 5) == 0 195 && strncmp(last, "disk@", 5) == 0)) 196 strcpy(lastp, last); 197 } else { 198 lastp = cbootpath; 199 } 200 201 /* 202 * At this point, cbootpath contains like: 203 * "/pci@80000000/mac-io@10/ata-3@20000/disk" 204 * 205 * The last component may have no address... so append it. 206 */ 207 if (strchr(lastp, '@') == NULL) { 208 /* Append it. */ 209 if ((p = strrchr(last, '@')) != NULL) 210 strcat(cbootpath, p); 211 } 212 213 if ((p = strrchr(lastp, ':')) != NULL) { 214 *p++ = '\0'; 215 /* booted_partition = *p - '0'; XXX correct? */ 216 } 217 } 218 219 /* 220 * device_register is called from config_attach as each device is 221 * attached. We use it to find the NetBSD device corresponding to the 222 * known OF boot device. 223 */ 224 void 225 device_register(device_t dev, void *aux) 226 { 227 static device_t parent; 228 static char *bp = bootpath + 1, *cp = cbootpath; 229 unsigned long addr, addr2; 230 char *p; 231 #if NGTPCI > 0 232 struct powerpc_bus_space *gtpci_mem_bs_tag = NULL; 233 #endif 234 235 /* Skip over devices not represented in the OF tree. */ 236 if (device_is_a(dev, "mainbus")) { 237 parent = dev; 238 return; 239 } 240 241 /* skip over CPUs */ 242 if (device_is_a(dev, "cpu")) { 243 return; 244 } 245 246 if (device_is_a(dev, "valkyriefb")) { 247 struct confargs *ca = aux; 248 prop_dictionary_t dict; 249 250 dict = device_properties(dev); 251 copy_disp_props(dev, ca->ca_node, dict); 252 } 253 254 /* cannot read useful display properties for platinum */ 255 if (device_is_a(dev, "platinumfb")) { 256 return; 257 } 258 259 #if NGTPCI > 0 260 if (device_is_a(dev, "gtpci")) { 261 extern struct gtpci_prot gtpci0_prot, gtpci1_prot; 262 extern struct powerpc_bus_space 263 gtpci0_io_bs_tag, gtpci0_mem_bs_tag, 264 gtpci1_io_bs_tag, gtpci1_mem_bs_tag; 265 extern struct genppc_pci_chipset 266 genppc_gtpci0_chipset, genppc_gtpci1_chipset; 267 268 struct marvell_attach_args *mva = aux; 269 struct gtpci_prot *gtpci_prot; 270 struct powerpc_bus_space *gtpci_io_bs_tag; 271 struct genppc_pci_chipset *genppc_gtpci_chipset; 272 prop_dictionary_t dict = device_properties(dev); 273 prop_data_t prot, io_bs_tag, mem_bs_tag, pc; 274 int iostart, ioend; 275 276 if (mva->mva_unit == 0) { 277 gtpci_prot = >pci0_prot; 278 gtpci_io_bs_tag = >pci0_io_bs_tag; 279 gtpci_mem_bs_tag = >pci0_mem_bs_tag; 280 genppc_gtpci_chipset = &genppc_gtpci0_chipset; 281 iostart = 0; 282 ioend = 0; 283 } else { 284 gtpci_prot = >pci1_prot; 285 gtpci_io_bs_tag = >pci1_io_bs_tag; 286 gtpci_mem_bs_tag = >pci1_mem_bs_tag; 287 genppc_gtpci_chipset = &genppc_gtpci1_chipset; 288 iostart = 0x1400; 289 ioend = 0xffff; 290 } 291 292 prot = prop_data_create_data_nocopy( 293 gtpci_prot, sizeof(struct gtpci_prot)); 294 KASSERT(prot != NULL); 295 prop_dictionary_set(dict, "prot", prot); 296 prop_object_release(prot); 297 298 io_bs_tag = prop_data_create_data_nocopy( 299 gtpci_io_bs_tag, sizeof(struct powerpc_bus_space)); 300 KASSERT(io_bs_tag != NULL); 301 prop_dictionary_set(dict, "io-bus-tag", io_bs_tag); 302 prop_object_release(io_bs_tag); 303 mem_bs_tag = prop_data_create_data_nocopy( 304 gtpci_mem_bs_tag, sizeof(struct powerpc_bus_space)); 305 KASSERT(mem_bs_tag != NULL); 306 prop_dictionary_set(dict, "mem-bus-tag", mem_bs_tag); 307 prop_object_release(mem_bs_tag); 308 309 genppc_gtpci_chipset->pc_conf_v = device_private(dev); 310 pc = prop_data_create_data_nocopy(genppc_gtpci_chipset, 311 sizeof(struct genppc_pci_chipset)); 312 KASSERT(pc != NULL); 313 prop_dictionary_set(dict, "pci-chipset", pc); 314 prop_object_release(pc); 315 316 prop_dictionary_set_uint64(dict, "iostart", iostart); 317 prop_dictionary_set_uint64(dict, "ioend", ioend); 318 prop_dictionary_set_uint64(dict, "memstart", 319 gtpci_mem_bs_tag->pbs_base); 320 prop_dictionary_set_uint64(dict, "memend", 321 gtpci_mem_bs_tag->pbs_limit - 1); 322 prop_dictionary_set_uint32(dict, "cache-line-size", 323 CACHELINESIZE); 324 } 325 #endif 326 if (device_is_a(dev, "atapibus") || 327 #ifndef PMAC_G5 328 device_is_a(dev, "pci") || 329 #endif 330 device_is_a(dev, "scsibus") || device_is_a(dev, "atabus")) 331 return; 332 333 if (device_is_a(device_parent(dev), "pci")) { 334 struct pci_attach_args *pa = aux; 335 prop_dictionary_t dict; 336 prop_bool_t b; 337 int node; 338 char name[32]; 339 340 dict = device_properties(dev); 341 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 342 343 /* enable configuration of irq 14/15 for VIA native IDE */ 344 if (device_is_a(dev, "viaide") && 345 strncmp(model_name, "Pegasos", 7) == 0) { 346 b = prop_bool_create(true); 347 KASSERT(b != NULL); 348 (void)prop_dictionary_set(dict, 349 "use-compat-native-irq", b); 350 prop_object_release(b); 351 } 352 353 if (node != 0) { 354 int pci_class = 0; 355 356 prop_dictionary_set_uint32(dict, "device_node", node); 357 358 if (node == boot_node) { 359 /* we netbooted from whatever this is */ 360 booted_device = dev; 361 } 362 /* see if this is going to be console */ 363 memset(name, 0, sizeof(name)); 364 OF_getprop(node, "device_type", name, sizeof(name)); 365 366 OF_getprop(node, "class-code", &pci_class, 367 sizeof pci_class); 368 pci_class = (pci_class >> 16) & 0xff; 369 370 if (strcmp(name, "display") == 0 || 371 strcmp(name, "ATY,DDParent") == 0 || 372 pci_class == PCI_CLASS_DISPLAY) { 373 /* setup display properties for fb driver */ 374 prop_dictionary_set_bool(dict, "is_console", 0); 375 copy_disp_props(dev, node, dict); 376 } 377 if (pci_class == PCI_CLASS_NETWORK) { 378 of_to_dataprop(dict, node, "local-mac-address", 379 "mac-address"); 380 of_to_dataprop(dict, node, "shared-pins", 381 "shared-pins"); 382 } 383 } 384 #ifdef macppc 385 /* 386 * XXX 387 * some macppc boxes have onboard devices where parts or all of 388 * the PCI_INTERRUPT register are hardwired to 0 389 */ 390 if (pa->pa_intrpin == 0) 391 pa->pa_intrpin = 1; 392 #endif 393 } 394 395 if (booted_device) 396 return; 397 398 /* 399 * Skip over devices that are really just layers of NetBSD 400 * autoconf(9) we should just skip as they do not have any 401 * OFW devices. 402 * XXX except on G5, where we have /ht/pci* instead of /pci* 403 */ 404 if (device_is_a(device_parent(dev), "atapibus") || 405 device_is_a(device_parent(dev), "atabus") || 406 #ifndef PMAC_G5 407 device_is_a(device_parent(dev), "pci") || 408 #endif 409 device_is_a(device_parent(dev), "scsibus")) { 410 if (device_parent(device_parent(dev)) != parent) { 411 return; 412 } 413 } else { 414 if (device_parent(dev) != parent) 415 return; 416 } 417 418 /* 419 * Get the address part of the current path component. The 420 * last component of the canonical bootpath may have no 421 * address (eg, "disk"), in which case we need to get the 422 * address from the original bootpath instead. 423 */ 424 p = strchr(cp, '@'); 425 if (!p) { 426 if (bp) 427 p = strchr(bp, '@'); 428 if (!p) 429 addr = 0; 430 else 431 addr = strtoul(p + 1, &p, 16); 432 } else 433 addr = strtoul(p + 1, &p, 16); 434 435 /* if the current path has more address, grab that too */ 436 if (p && *p == ',') 437 addr2 = strtoul(p + 1, &p, 16); 438 else 439 addr2 = 0; 440 441 if (device_is_a(device_parent(dev), "mainbus")) { 442 struct confargs *ca = aux; 443 if (strcmp(ca->ca_name, "ofw") == 0) /* XXX */ 444 return; 445 if (strcmp(ca->ca_name, "gt") == 0) 446 parent = dev; 447 if (addr != ca->ca_reg[0]) 448 return; 449 if (addr2 != 0 && addr2 != ca->ca_reg[1]) 450 return; 451 } else if (device_is_a(device_parent(dev), "gt")) { 452 /* 453 * Special handle for MV64361 on PegasosII(ofppc). 454 */ 455 if (device_is_a(dev, "mvgbec")) { 456 /* 457 * Fix cp to /port@N from /ethernet/portN. (N is 0...2) 458 */ 459 static char fix_cp[8] = "/port@N"; 460 461 if (strlen(cp) != 15 || 462 strncmp(cp, "/ethernet/port", 14) != 0) 463 return; 464 fix_cp[7] = *(cp + 15); 465 p = fix_cp; 466 #if NGTPCI > 0 467 } else if (device_is_a(dev, "gtpci")) { 468 if (gtpci_mem_bs_tag != NULL && 469 addr != gtpci_mem_bs_tag->pbs_base) 470 return; 471 #endif 472 } else 473 return; 474 } else if (device_is_a(device_parent(dev), "pci")) { 475 struct pci_attach_args *pa = aux; 476 477 if (addr != pa->pa_device || 478 addr2 != pa->pa_function) 479 return; 480 } else if (device_is_a(device_parent(dev), "obio")) { 481 struct confargs *ca = aux; 482 483 if (addr != ca->ca_reg[0]) 484 return; 485 } else if (device_is_a(device_parent(dev), "scsibus") || 486 device_is_a(device_parent(dev), "atapibus")) { 487 struct scsipibus_attach_args *sa = aux; 488 489 /* periph_target is target for scsi, drive # for atapi */ 490 if (addr != sa->sa_periph->periph_target) 491 return; 492 } else if (device_is_a(device_parent(device_parent(dev)), "pciide") || 493 device_is_a(device_parent(device_parent(dev)), "viaide") || 494 device_is_a(device_parent(device_parent(dev)), "slide")) { 495 struct ata_device *adev = aux; 496 497 if (addr != adev->adev_channel || 498 addr2 != adev->adev_drv_data->drive) 499 return; 500 } else if (device_is_a(device_parent(device_parent(dev)), "wdc")) { 501 struct ata_device *adev = aux; 502 503 if (addr != adev->adev_drv_data->drive) 504 return; 505 } else if (device_is_a(dev, "pci")) { 506 if (addr != device_unit(dev)) 507 return; 508 } else if (device_is_a(device_parent(dev), "atabus")) { 509 /* 510 * XXX 511 * on svwsata this is the channel number and we ignore the 512 * drive number which is always 0 anyway 513 * needs to be revisited for other (S)ATA cards 514 */ 515 struct ata_device *adev = aux; 516 if (addr != adev->adev_channel) 517 return; 518 /* we have our match, cut off the rest */ 519 if (p) *p = 0; 520 } else 521 return; 522 523 /* If we reach this point, then dev is a match for the current 524 * path component. 525 */ 526 if (p && *p) { 527 parent = dev; 528 cp = p; 529 bp = strchr(bp, '/'); 530 if (bp) 531 bp++; 532 return; 533 } else { 534 booted_device = dev; 535 booted_partition = 0; /* XXX -- should be extracted from bootpath */ 536 return; 537 } 538 } 539 540 /* 541 * Setup root device. 542 * Configure swap area. 543 */ 544 void 545 cpu_rootconf(void) 546 { 547 printf("boot device: %s\n", 548 booted_device ? device_xname(booted_device) : "<unknown>"); 549 550 rootconf(); 551 } 552 553 /* 554 * Find OF-device corresponding to the PCI device. 555 */ 556 int 557 pcidev_to_ofdev(pci_chipset_tag_t pc, pcitag_t tag) 558 { 559 int bus, dev, func; 560 u_int reg[5]; 561 int p, q; 562 int l, b, d, f; 563 564 pci_decompose_tag(pc, tag, &bus, &dev, &func); 565 566 for (q = OF_peer(0); q; q = p) { 567 l = OF_getprop(q, "assigned-addresses", reg, sizeof(reg)); 568 if (l > 4) { 569 b = (reg[0] >> 16) & 0xff; 570 d = (reg[0] >> 11) & 0x1f; 571 f = (reg[0] >> 8) & 0x07; 572 573 if (b == bus && d == dev && f == func) 574 return q; 575 } 576 if ((p = OF_child(q))) 577 continue; 578 while (q) { 579 if ((p = OF_peer(q))) 580 break; 581 q = OF_parent(q); 582 } 583 } 584 return 0; 585 } 586
Indexes created Tue Oct 21 07:10:13 GMT 2025