ofw_autoconf.c revision 1.23
1 /* $NetBSD: ofw_autoconf.c,v 1.23 2018/11/21 17:54:42 scole 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 1.23 2018/11/21 17:54:42 scole 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 /* cannot read useful display properties for platinum */ 248 if (device_is_a(dev, "platinumfb")) { 249 return; 250 } 251 252 #if NGTPCI > 0 253 if (device_is_a(dev, "gtpci")) { 254 extern struct gtpci_prot gtpci0_prot, gtpci1_prot; 255 extern struct powerpc_bus_space 256 gtpci0_io_bs_tag, gtpci0_mem_bs_tag, 257 gtpci1_io_bs_tag, gtpci1_mem_bs_tag; 258 extern struct genppc_pci_chipset 259 genppc_gtpci0_chipset, genppc_gtpci1_chipset; 260 261 struct marvell_attach_args *mva = aux; 262 struct gtpci_prot *gtpci_prot; 263 struct powerpc_bus_space *gtpci_io_bs_tag; 264 struct genppc_pci_chipset *genppc_gtpci_chipset; 265 prop_dictionary_t dict = device_properties(dev); 266 prop_data_t prot, io_bs_tag, mem_bs_tag, pc; 267 int iostart, ioend; 268 269 if (mva->mva_unit == 0) { 270 gtpci_prot = >pci0_prot; 271 gtpci_io_bs_tag = >pci0_io_bs_tag; 272 gtpci_mem_bs_tag = >pci0_mem_bs_tag; 273 genppc_gtpci_chipset = &genppc_gtpci0_chipset; 274 iostart = 0; 275 ioend = 0; 276 } else { 277 gtpci_prot = >pci1_prot; 278 gtpci_io_bs_tag = >pci1_io_bs_tag; 279 gtpci_mem_bs_tag = >pci1_mem_bs_tag; 280 genppc_gtpci_chipset = &genppc_gtpci1_chipset; 281 iostart = 0x1400; 282 ioend = 0xffff; 283 } 284 285 prot = prop_data_create_data_nocopy( 286 gtpci_prot, sizeof(struct gtpci_prot)); 287 KASSERT(prot != NULL); 288 prop_dictionary_set(dict, "prot", prot); 289 prop_object_release(prot); 290 291 io_bs_tag = prop_data_create_data_nocopy( 292 gtpci_io_bs_tag, sizeof(struct powerpc_bus_space)); 293 KASSERT(io_bs_tag != NULL); 294 prop_dictionary_set(dict, "io-bus-tag", io_bs_tag); 295 prop_object_release(io_bs_tag); 296 mem_bs_tag = prop_data_create_data_nocopy( 297 gtpci_mem_bs_tag, sizeof(struct powerpc_bus_space)); 298 KASSERT(mem_bs_tag != NULL); 299 prop_dictionary_set(dict, "mem-bus-tag", mem_bs_tag); 300 prop_object_release(mem_bs_tag); 301 302 genppc_gtpci_chipset->pc_conf_v = device_private(dev); 303 pc = prop_data_create_data_nocopy(genppc_gtpci_chipset, 304 sizeof(struct genppc_pci_chipset)); 305 KASSERT(pc != NULL); 306 prop_dictionary_set(dict, "pci-chipset", pc); 307 prop_object_release(pc); 308 309 prop_dictionary_set_uint64(dict, "iostart", iostart); 310 prop_dictionary_set_uint64(dict, "ioend", ioend); 311 prop_dictionary_set_uint64(dict, "memstart", 312 gtpci_mem_bs_tag->pbs_base); 313 prop_dictionary_set_uint64(dict, "memend", 314 gtpci_mem_bs_tag->pbs_limit - 1); 315 prop_dictionary_set_uint32(dict, "cache-line-size", 316 CACHELINESIZE); 317 } 318 #endif 319 if (device_is_a(dev, "atapibus") || 320 #ifndef PMAC_G5 321 device_is_a(dev, "pci") || 322 #endif 323 device_is_a(dev, "scsibus") || device_is_a(dev, "atabus")) 324 return; 325 326 if (device_is_a(device_parent(dev), "pci")) { 327 struct pci_attach_args *pa = aux; 328 prop_dictionary_t dict; 329 prop_bool_t b; 330 int node; 331 char name[32]; 332 333 dict = device_properties(dev); 334 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 335 336 /* enable configuration of irq 14/15 for VIA native IDE */ 337 if (device_is_a(dev, "viaide") && 338 strncmp(model_name, "Pegasos", 7) == 0) { 339 b = prop_bool_create(true); 340 KASSERT(b != NULL); 341 (void)prop_dictionary_set(dict, 342 "use-compat-native-irq", b); 343 prop_object_release(b); 344 } 345 346 if (node != 0) { 347 int pci_class = 0; 348 349 prop_dictionary_set_uint32(dict, "device_node", node); 350 351 if (node == boot_node) { 352 /* we netbooted from whatever this is */ 353 booted_device = dev; 354 } 355 /* see if this is going to be console */ 356 memset(name, 0, sizeof(name)); 357 OF_getprop(node, "device_type", name, sizeof(name)); 358 359 OF_getprop(node, "class-code", &pci_class, 360 sizeof pci_class); 361 pci_class = (pci_class >> 16) & 0xff; 362 363 if (strcmp(name, "display") == 0 || 364 strcmp(name, "ATY,DDParent") == 0 || 365 pci_class == PCI_CLASS_DISPLAY) { 366 /* setup display properties for fb driver */ 367 prop_dictionary_set_bool(dict, "is_console", 0); 368 copy_disp_props(dev, node, dict); 369 } 370 if (pci_class == PCI_CLASS_NETWORK) { 371 of_to_dataprop(dict, node, "local-mac-address", 372 "mac-address"); 373 of_to_dataprop(dict, node, "shared-pins", 374 "shared-pins"); 375 } 376 } 377 #ifdef macppc 378 /* 379 * XXX 380 * some macppc boxes have onboard devices where parts or all of 381 * the PCI_INTERRUPT register are hardwired to 0 382 */ 383 if (pa->pa_intrpin == 0) 384 pa->pa_intrpin = 1; 385 #endif 386 } 387 388 if (booted_device) 389 return; 390 391 /* 392 * Skip over devices that are really just layers of NetBSD 393 * autoconf(9) we should just skip as they do not have any 394 * OFW devices. 395 * XXX except on G5, where we have /ht/pci* instead of /pci* 396 */ 397 if (device_is_a(device_parent(dev), "atapibus") || 398 device_is_a(device_parent(dev), "atabus") || 399 #ifndef PMAC_G5 400 device_is_a(device_parent(dev), "pci") || 401 #endif 402 device_is_a(device_parent(dev), "scsibus")) { 403 if (device_parent(device_parent(dev)) != parent) { 404 return; 405 } 406 } else { 407 if (device_parent(dev) != parent) 408 return; 409 } 410 411 /* 412 * Get the address part of the current path component. The 413 * last component of the canonical bootpath may have no 414 * address (eg, "disk"), in which case we need to get the 415 * address from the original bootpath instead. 416 */ 417 p = strchr(cp, '@'); 418 if (!p) { 419 if (bp) 420 p = strchr(bp, '@'); 421 if (!p) 422 addr = 0; 423 else 424 addr = strtoul(p + 1, &p, 16); 425 } else 426 addr = strtoul(p + 1, &p, 16); 427 428 /* if the current path has more address, grab that too */ 429 if (p && *p == ',') 430 addr2 = strtoul(p + 1, &p, 16); 431 else 432 addr2 = 0; 433 434 if (device_is_a(device_parent(dev), "mainbus")) { 435 struct confargs *ca = aux; 436 if (strcmp(ca->ca_name, "ofw") == 0) /* XXX */ 437 return; 438 if (strcmp(ca->ca_name, "gt") == 0) 439 parent = dev; 440 if (addr != ca->ca_reg[0]) 441 return; 442 if (addr2 != 0 && addr2 != ca->ca_reg[1]) 443 return; 444 } else if (device_is_a(device_parent(dev), "gt")) { 445 /* 446 * Special handle for MV64361 on PegasosII(ofppc). 447 */ 448 if (device_is_a(dev, "mvgbec")) { 449 /* 450 * Fix cp to /port@N from /ethernet/portN. (N is 0...2) 451 */ 452 static char fix_cp[8] = "/port@N"; 453 454 if (strlen(cp) != 15 || 455 strncmp(cp, "/ethernet/port", 14) != 0) 456 return; 457 fix_cp[7] = *(cp + 15); 458 p = fix_cp; 459 #if NGTPCI > 0 460 } else if (device_is_a(dev, "gtpci")) { 461 if (gtpci_mem_bs_tag != NULL && 462 addr != gtpci_mem_bs_tag->pbs_base) 463 return; 464 #endif 465 } else 466 return; 467 } else if (device_is_a(device_parent(dev), "pci")) { 468 struct pci_attach_args *pa = aux; 469 470 if (addr != pa->pa_device || 471 addr2 != pa->pa_function) 472 return; 473 } else if (device_is_a(device_parent(dev), "obio")) { 474 struct confargs *ca = aux; 475 476 if (addr != ca->ca_reg[0]) 477 return; 478 } else if (device_is_a(device_parent(dev), "scsibus") || 479 device_is_a(device_parent(dev), "atapibus")) { 480 struct scsipibus_attach_args *sa = aux; 481 482 /* periph_target is target for scsi, drive # for atapi */ 483 if (addr != sa->sa_periph->periph_target) 484 return; 485 } else if (device_is_a(device_parent(device_parent(dev)), "pciide") || 486 device_is_a(device_parent(device_parent(dev)), "viaide") || 487 device_is_a(device_parent(device_parent(dev)), "slide")) { 488 struct ata_device *adev = aux; 489 490 if (addr != adev->adev_channel || 491 addr2 != adev->adev_drv_data->drive) 492 return; 493 } else if (device_is_a(device_parent(device_parent(dev)), "wdc")) { 494 struct ata_device *adev = aux; 495 496 if (addr != adev->adev_drv_data->drive) 497 return; 498 } else if (device_is_a(dev, "pci")) { 499 if (addr != device_unit(dev)) 500 return; 501 } else if (device_is_a(device_parent(dev), "atabus")) { 502 /* 503 * XXX 504 * on svwsata this is the channel number and we ignore the 505 * drive number which is always 0 anyway 506 * needs to be revisited for other (S)ATA cards 507 */ 508 struct ata_device *adev = aux; 509 if (addr != adev->adev_channel) 510 return; 511 /* we have our match, cut off the rest */ 512 if (p) *p = 0; 513 } else 514 return; 515 516 /* If we reach this point, then dev is a match for the current 517 * path component. 518 */ 519 if (p && *p) { 520 parent = dev; 521 cp = p; 522 bp = strchr(bp, '/'); 523 if (bp) 524 bp++; 525 return; 526 } else { 527 booted_device = dev; 528 booted_partition = 0; /* XXX -- should be extracted from bootpath */ 529 return; 530 } 531 } 532 533 /* 534 * Setup root device. 535 * Configure swap area. 536 */ 537 void 538 cpu_rootconf(void) 539 { 540 printf("boot device: %s\n", 541 booted_device ? device_xname(booted_device) : "<unknown>"); 542 543 rootconf(); 544 } 545 546 /* 547 * Find OF-device corresponding to the PCI device. 548 */ 549 int 550 pcidev_to_ofdev(pci_chipset_tag_t pc, pcitag_t tag) 551 { 552 int bus, dev, func; 553 u_int reg[5]; 554 int p, q; 555 int l, b, d, f; 556 557 pci_decompose_tag(pc, tag, &bus, &dev, &func); 558 559 for (q = OF_peer(0); q; q = p) { 560 l = OF_getprop(q, "assigned-addresses", reg, sizeof(reg)); 561 if (l > 4) { 562 b = (reg[0] >> 16) & 0xff; 563 d = (reg[0] >> 11) & 0x1f; 564 f = (reg[0] >> 8) & 0x07; 565 566 if (b == bus && d == dev && f == func) 567 return q; 568 } 569 if ((p = OF_child(q))) 570 continue; 571 while (q) { 572 if ((p = OF_peer(q))) 573 break; 574 q = OF_parent(q); 575 } 576 } 577 return 0; 578 } 579
Indexes created Mon Sep 29 18:09:42 GMT 2025