ofw_autoconf.c revision 1.15.2.2
1 /* $NetBSD: ofw_autoconf.c,v 1.15.2.2 2014/05/22 11:40:04 yamt 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 1.15.2.2 2014/05/22 11:40:04 yamt 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 71 static void canonicalize_bootpath(void); 72 73 /* 74 * Determine device configuration for a machine. 75 */ 76 void 77 cpu_configure(void) 78 { 79 init_interrupt(); 80 canonicalize_bootpath(); 81 82 if (config_rootfound("mainbus", NULL) == NULL) 83 panic("configure: mainbus not configured"); 84 85 genppc_cpu_configure(); 86 } 87 88 static void 89 canonicalize_bootpath(void) 90 { 91 int node; 92 char *p, *lastp; 93 char last[32]; 94 95 /* 96 * If the bootpath doesn't start with a / then it isn't 97 * an OFW path and probably is an alias, so look up the alias 98 * and regenerate the full bootpath so device_register will work. 99 */ 100 if (bootpath[0] != '/' && bootpath[0] != '\0') { 101 int aliases = OF_finddevice("/aliases"); 102 char tmpbuf[100]; 103 char aliasbuf[256]; 104 if (aliases != 0) { 105 char *cp1, *cp2, *cp; 106 char saved_ch = '\0'; 107 int len; 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 /* 155 * cbootpath is a valid OF path. Use package-to-path to 156 * canonicalize pathname. 157 */ 158 159 /* Back up the last component for later use. */ 160 if ((p = strrchr(cbootpath, '/')) != NULL) 161 strcpy(last, p + 1); 162 else 163 last[0] = '\0'; 164 165 memset(cbootpath, 0, sizeof(cbootpath)); 166 OF_package_to_path(node, cbootpath, sizeof(cbootpath) - 1); 167 168 /* 169 * OF_1.x (at least) always returns addr == 0 for 170 * SCSI disks (i.e. "/bandit (at) .../.../sd@0,0"). 171 * also check for .../disk@ which some Adaptec firmware uses 172 */ 173 lastp = strrchr(cbootpath, '/'); 174 if (lastp != NULL) { 175 lastp++; 176 if ((strncmp(lastp, "sd@", 3) == 0 177 && strncmp(last, "sd@", 3) == 0) || 178 (strncmp(lastp, "disk@", 5) == 0 179 && strncmp(last, "disk@", 5) == 0)) 180 strcpy(lastp, last); 181 } else { 182 lastp = cbootpath; 183 } 184 185 /* 186 * At this point, cbootpath contains like: 187 * "/pci@80000000/mac-io@10/ata-3@20000/disk" 188 * 189 * The last component may have no address... so append it. 190 */ 191 if (strchr(lastp, '@') == NULL) { 192 /* Append it. */ 193 if ((p = strrchr(last, '@')) != NULL) 194 strcat(cbootpath, p); 195 } 196 197 if ((p = strrchr(lastp, ':')) != NULL) { 198 *p++ = '\0'; 199 /* booted_partition = *p - '0'; XXX correct? */ 200 } 201 } 202 203 /* 204 * device_register is called from config_attach as each device is 205 * attached. We use it to find the NetBSD device corresponding to the 206 * known OF boot device. 207 */ 208 void 209 device_register(device_t dev, void *aux) 210 { 211 static device_t parent; 212 static char *bp = bootpath + 1, *cp = cbootpath; 213 unsigned long addr, addr2; 214 char *p; 215 #if NGTPCI > 0 216 struct powerpc_bus_space *gtpci_mem_bs_tag = NULL; 217 #endif 218 219 /* Skip over devices not represented in the OF tree. */ 220 if (device_is_a(dev, "mainbus")) { 221 parent = dev; 222 return; 223 } 224 225 if (device_is_a(dev, "valkyriefb")) { 226 struct confargs *ca = aux; 227 prop_dictionary_t dict; 228 229 dict = device_properties(dev); 230 copy_disp_props(dev, ca->ca_node, dict); 231 } 232 233 #if NGTPCI > 0 234 if (device_is_a(dev, "gtpci")) { 235 extern struct gtpci_prot gtpci0_prot, gtpci1_prot; 236 extern struct powerpc_bus_space 237 gtpci0_io_bs_tag, gtpci0_mem_bs_tag, 238 gtpci1_io_bs_tag, gtpci1_mem_bs_tag; 239 extern struct genppc_pci_chipset 240 genppc_gtpci0_chipset, genppc_gtpci1_chipset; 241 242 struct marvell_attach_args *mva = aux; 243 struct gtpci_prot *gtpci_prot; 244 struct powerpc_bus_space *gtpci_io_bs_tag; 245 struct genppc_pci_chipset *genppc_gtpci_chipset; 246 prop_dictionary_t dict = device_properties(dev); 247 prop_data_t prot, io_bs_tag, mem_bs_tag, pc; 248 int iostart, ioend; 249 250 if (mva->mva_unit == 0) { 251 gtpci_prot = >pci0_prot; 252 gtpci_io_bs_tag = >pci0_io_bs_tag; 253 gtpci_mem_bs_tag = >pci0_mem_bs_tag; 254 genppc_gtpci_chipset = &genppc_gtpci0_chipset; 255 iostart = 0; 256 ioend = 0; 257 } else { 258 gtpci_prot = >pci1_prot; 259 gtpci_io_bs_tag = >pci1_io_bs_tag; 260 gtpci_mem_bs_tag = >pci1_mem_bs_tag; 261 genppc_gtpci_chipset = &genppc_gtpci1_chipset; 262 iostart = 0x1400; 263 ioend = 0xffff; 264 } 265 266 prot = prop_data_create_data_nocopy( 267 gtpci_prot, sizeof(struct gtpci_prot)); 268 KASSERT(prot != NULL); 269 prop_dictionary_set(dict, "prot", prot); 270 prop_object_release(prot); 271 272 io_bs_tag = prop_data_create_data_nocopy( 273 gtpci_io_bs_tag, sizeof(struct powerpc_bus_space)); 274 KASSERT(io_bs_tag != NULL); 275 prop_dictionary_set(dict, "io-bus-tag", io_bs_tag); 276 prop_object_release(io_bs_tag); 277 mem_bs_tag = prop_data_create_data_nocopy( 278 gtpci_mem_bs_tag, sizeof(struct powerpc_bus_space)); 279 KASSERT(mem_bs_tag != NULL); 280 prop_dictionary_set(dict, "mem-bus-tag", mem_bs_tag); 281 prop_object_release(mem_bs_tag); 282 283 genppc_gtpci_chipset->pc_conf_v = device_private(dev); 284 pc = prop_data_create_data_nocopy(genppc_gtpci_chipset, 285 sizeof(struct genppc_pci_chipset)); 286 KASSERT(pc != NULL); 287 prop_dictionary_set(dict, "pci-chipset", pc); 288 prop_object_release(pc); 289 290 prop_dictionary_set_uint64(dict, "iostart", iostart); 291 prop_dictionary_set_uint64(dict, "ioend", ioend); 292 prop_dictionary_set_uint64(dict, "memstart", 293 gtpci_mem_bs_tag->pbs_base); 294 prop_dictionary_set_uint64(dict, "memend", 295 gtpci_mem_bs_tag->pbs_limit - 1); 296 prop_dictionary_set_uint32(dict, "cache-line-size", 297 CACHELINESIZE); 298 } 299 #endif 300 if (device_is_a(dev, "atapibus") || device_is_a(dev, "pci") || 301 device_is_a(dev, "scsibus") || device_is_a(dev, "atabus")) 302 return; 303 304 if (device_is_a(device_parent(dev), "pci")) { 305 struct pci_attach_args *pa = aux; 306 prop_dictionary_t dict; 307 prop_bool_t b; 308 int node; 309 char name[32]; 310 311 dict = device_properties(dev); 312 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 313 314 /* enable configuration of irq 14/15 for VIA native IDE */ 315 if (device_is_a(dev, "viaide") && 316 strncmp(model_name, "Pegasos", 7) == 0) { 317 b = prop_bool_create(true); 318 KASSERT(b != NULL); 319 (void)prop_dictionary_set(dict, 320 "use-compat-native-irq", b); 321 prop_object_release(b); 322 } 323 324 if (node != 0) { 325 int pci_class = 0; 326 327 prop_dictionary_set_uint32(dict, "device_node", node); 328 329 /* see if this is going to be console */ 330 memset(name, 0, sizeof(name)); 331 OF_getprop(node, "device_type", name, sizeof(name)); 332 333 OF_getprop(node, "class-code", &pci_class, 334 sizeof pci_class); 335 pci_class = (pci_class >> 16) & 0xff; 336 337 if (strcmp(name, "display") == 0 || 338 strcmp(name, "ATY,DDParent") == 0 || 339 pci_class == PCI_CLASS_DISPLAY) { 340 /* setup display properties for fb driver */ 341 prop_dictionary_set_bool(dict, "is_console", 0); 342 copy_disp_props(dev, node, dict); 343 } 344 if (pci_class == PCI_CLASS_NETWORK) { 345 of_to_dataprop(dict, node, "local-mac-address", 346 "mac-address"); 347 of_to_dataprop(dict, node, "shared-pins", 348 "shared-pins"); 349 } 350 } 351 #ifdef macppc 352 /* 353 * XXX 354 * some macppc boxes have onboard devices where parts or all of 355 * the PCI_INTERRUPT register are hardwired to 0 356 */ 357 if (pa->pa_intrpin == 0) 358 pa->pa_intrpin = 1; 359 #endif 360 } 361 362 if (booted_device) 363 return; 364 365 /* 366 * Skip over devices that are really just layers of NetBSD 367 * autoconf(9) we should just skip as they do not have any 368 * OFW devices. 369 */ 370 if (device_is_a(device_parent(dev), "atapibus") || 371 device_is_a(device_parent(dev), "atabus") || 372 device_is_a(device_parent(dev), "pci") || 373 device_is_a(device_parent(dev), "scsibus")) { 374 if (device_parent(device_parent(dev)) != parent) 375 return; 376 } else { 377 if (device_parent(dev) != parent) 378 return; 379 } 380 381 /* 382 * Get the address part of the current path component. The 383 * last component of the canonical bootpath may have no 384 * address (eg, "disk"), in which case we need to get the 385 * address from the original bootpath instead. 386 */ 387 p = strchr(cp, '@'); 388 if (!p) { 389 if (bp) 390 p = strchr(bp, '@'); 391 if (!p) 392 addr = 0; 393 else 394 addr = strtoul(p + 1, &p, 16); 395 } else 396 addr = strtoul(p + 1, &p, 16); 397 398 /* if the current path has more address, grab that too */ 399 if (p && *p == ',') 400 addr2 = strtoul(p + 1, &p, 16); 401 else 402 addr2 = 0; 403 404 if (device_is_a(device_parent(dev), "mainbus")) { 405 struct confargs *ca = aux; 406 407 if (strcmp(ca->ca_name, "ofw") == 0) /* XXX */ 408 return; 409 if (strcmp(ca->ca_name, "gt") == 0) 410 parent = dev; 411 if (addr != ca->ca_reg[0]) 412 return; 413 } else if (device_is_a(device_parent(dev), "gt")) { 414 /* 415 * Special handle for MV64361 on PegasosII(ofppc). 416 */ 417 if (device_is_a(dev, "mvgbec")) { 418 /* 419 * Fix cp to /port@N from /ethernet/portN. (N is 0...2) 420 */ 421 static char fix_cp[8] = "/port@N"; 422 423 if (strlen(cp) != 15 || 424 strncmp(cp, "/ethernet/port", 14) != 0) 425 return; 426 fix_cp[7] = *(cp + 15); 427 p = fix_cp; 428 #if NGTPCI > 0 429 } else if (device_is_a(dev, "gtpci")) { 430 if (gtpci_mem_bs_tag != NULL && 431 addr != gtpci_mem_bs_tag->pbs_base) 432 return; 433 #endif 434 } else 435 return; 436 } else if (device_is_a(device_parent(dev), "pci")) { 437 struct pci_attach_args *pa = aux; 438 439 if (addr != pa->pa_device || 440 addr2 != pa->pa_function) 441 return; 442 } else if (device_is_a(device_parent(dev), "obio")) { 443 struct confargs *ca = aux; 444 445 if (addr != ca->ca_reg[0]) 446 return; 447 } else if (device_is_a(device_parent(dev), "scsibus") || 448 device_is_a(device_parent(dev), "atapibus")) { 449 struct scsipibus_attach_args *sa = aux; 450 451 /* periph_target is target for scsi, drive # for atapi */ 452 if (addr != sa->sa_periph->periph_target) 453 return; 454 } else if (device_is_a(device_parent(device_parent(dev)), "pciide") || 455 device_is_a(device_parent(device_parent(dev)), "viaide") || 456 device_is_a(device_parent(device_parent(dev)), "slide")) { 457 struct ata_device *adev = aux; 458 459 if (addr != adev->adev_channel || 460 addr2 != adev->adev_drv_data->drive) 461 return; 462 } else if (device_is_a(device_parent(device_parent(dev)), "wdc")) { 463 struct ata_device *adev = aux; 464 465 if (addr != adev->adev_drv_data->drive) 466 return; 467 } else 468 return; 469 470 /* If we reach this point, then dev is a match for the current 471 * path component. 472 */ 473 474 if (p && *p) { 475 parent = dev; 476 cp = p; 477 bp = strchr(bp, '/'); 478 if (bp) 479 bp++; 480 return; 481 } else { 482 booted_device = dev; 483 booted_partition = 0; /* XXX -- should be extracted from bootpath */ 484 return; 485 } 486 } 487 488 /* 489 * Setup root device. 490 * Configure swap area. 491 */ 492 void 493 cpu_rootconf(void) 494 { 495 printf("boot device: %s\n", 496 booted_device ? device_xname(booted_device) : "<unknown>"); 497 498 rootconf(); 499 } 500 501 /* 502 * Find OF-device corresponding to the PCI device. 503 */ 504 int 505 pcidev_to_ofdev(pci_chipset_tag_t pc, pcitag_t tag) 506 { 507 int bus, dev, func; 508 u_int reg[5]; 509 int p, q; 510 int l, b, d, f; 511 512 pci_decompose_tag(pc, tag, &bus, &dev, &func); 513 514 for (q = OF_peer(0); q; q = p) { 515 l = OF_getprop(q, "assigned-addresses", reg, sizeof(reg)); 516 if (l > 4) { 517 b = (reg[0] >> 16) & 0xff; 518 d = (reg[0] >> 11) & 0x1f; 519 f = (reg[0] >> 8) & 0x07; 520 521 if (b == bus && d == dev && f == func) 522 return q; 523 } 524 if ((p = OF_child(q))) 525 continue; 526 while (q) { 527 if ((p = OF_peer(q))) 528 break; 529 q = OF_parent(q); 530 } 531 } 532 return 0; 533 } 534
Indexes created Sun Oct 19 02:09:48 GMT 2025