1 /* $NetBSD: ofw_autoconf.c,v 1.19 2013/05/12 13:23:08 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 1.19 2013/05/12 13:23:08 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 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@.../.../sd@0,0"). 171 */ 172 lastp = strrchr(cbootpath, '/'); 173 if (lastp != NULL) { 174 lastp++; 175 if (strncmp(lastp, "sd@", 3) == 0 176 && strncmp(last, "sd@", 3) == 0) 177 strcpy(lastp, last); 178 } else { 179 lastp = cbootpath; 180 } 181 182 /* 183 * At this point, cbootpath contains like: 184 * "/pci@80000000/mac-io@10/ata-3@20000/disk" 185 * 186 * The last component may have no address... so append it. 187 */ 188 if (strchr(lastp, '@') == NULL) { 189 /* Append it. */ 190 if ((p = strrchr(last, '@')) != NULL) 191 strcat(cbootpath, p); 192 } 193 194 if ((p = strrchr(lastp, ':')) != NULL) { 195 *p++ = '\0'; 196 /* booted_partition = *p - '0'; XXX correct? */ 197 } 198 } 199 200 /* 201 * device_register is called from config_attach as each device is 202 * attached. We use it to find the NetBSD device corresponding to the 203 * known OF boot device. 204 */ 205 void 206 device_register(device_t dev, void *aux) 207 { 208 static device_t parent; 209 static char *bp = bootpath + 1, *cp = cbootpath; 210 unsigned long addr, addr2; 211 char *p; 212 #if NGTPCI > 0 213 struct powerpc_bus_space *gtpci_mem_bs_tag = NULL; 214 #endif 215 216 /* Skip over devices not represented in the OF tree. */ 217 if (device_is_a(dev, "mainbus")) { 218 parent = dev; 219 return; 220 } 221 222 if (device_is_a(dev, "valkyriefb")) { 223 struct confargs *ca = aux; 224 prop_dictionary_t dict; 225 226 dict = device_properties(dev); 227 copy_disp_props(dev, ca->ca_node, dict); 228 } 229 230 #if NGTPCI > 0 231 if (device_is_a(dev, "gtpci")) { 232 extern struct gtpci_prot gtpci0_prot, gtpci1_prot; 233 extern struct powerpc_bus_space 234 gtpci0_io_bs_tag, gtpci0_mem_bs_tag, 235 gtpci1_io_bs_tag, gtpci1_mem_bs_tag; 236 extern struct genppc_pci_chipset 237 genppc_gtpci0_chipset, genppc_gtpci1_chipset; 238 239 struct marvell_attach_args *mva = aux; 240 struct gtpci_prot *gtpci_prot; 241 struct powerpc_bus_space *gtpci_io_bs_tag; 242 struct genppc_pci_chipset *genppc_gtpci_chipset; 243 prop_dictionary_t dict = device_properties(dev); 244 prop_data_t prot, io_bs_tag, mem_bs_tag, pc; 245 int iostart, ioend; 246 247 if (mva->mva_unit == 0) { 248 gtpci_prot = >pci0_prot; 249 gtpci_io_bs_tag = >pci0_io_bs_tag; 250 gtpci_mem_bs_tag = >pci0_mem_bs_tag; 251 genppc_gtpci_chipset = &genppc_gtpci0_chipset; 252 iostart = 0; 253 ioend = 0; 254 } else { 255 gtpci_prot = >pci1_prot; 256 gtpci_io_bs_tag = >pci1_io_bs_tag; 257 gtpci_mem_bs_tag = >pci1_mem_bs_tag; 258 genppc_gtpci_chipset = &genppc_gtpci1_chipset; 259 iostart = 0x1400; 260 ioend = 0xffff; 261 } 262 263 prot = prop_data_create_data_nocopy( 264 gtpci_prot, sizeof(struct gtpci_prot)); 265 KASSERT(prot != NULL); 266 prop_dictionary_set(dict, "prot", prot); 267 prop_object_release(prot); 268 269 io_bs_tag = prop_data_create_data_nocopy( 270 gtpci_io_bs_tag, sizeof(struct powerpc_bus_space)); 271 KASSERT(io_bs_tag != NULL); 272 prop_dictionary_set(dict, "io-bus-tag", io_bs_tag); 273 prop_object_release(io_bs_tag); 274 mem_bs_tag = prop_data_create_data_nocopy( 275 gtpci_mem_bs_tag, sizeof(struct powerpc_bus_space)); 276 KASSERT(mem_bs_tag != NULL); 277 prop_dictionary_set(dict, "mem-bus-tag", mem_bs_tag); 278 prop_object_release(mem_bs_tag); 279 280 genppc_gtpci_chipset->pc_conf_v = device_private(dev); 281 pc = prop_data_create_data_nocopy(genppc_gtpci_chipset, 282 sizeof(struct genppc_pci_chipset)); 283 KASSERT(pc != NULL); 284 prop_dictionary_set(dict, "pci-chipset", pc); 285 prop_object_release(pc); 286 287 prop_dictionary_set_uint64(dict, "iostart", iostart); 288 prop_dictionary_set_uint64(dict, "ioend", ioend); 289 prop_dictionary_set_uint64(dict, "memstart", 290 gtpci_mem_bs_tag->pbs_base); 291 prop_dictionary_set_uint64(dict, "memend", 292 gtpci_mem_bs_tag->pbs_limit - 1); 293 prop_dictionary_set_uint32(dict, "cache-line-size", 294 CACHELINESIZE); 295 } 296 #endif 297 if (device_is_a(dev, "atapibus") || device_is_a(dev, "pci") || 298 device_is_a(dev, "scsibus") || device_is_a(dev, "atabus")) 299 return; 300 301 if (device_is_a(device_parent(dev), "pci")) { 302 struct pci_attach_args *pa = aux; 303 prop_dictionary_t dict; 304 prop_bool_t b; 305 int node; 306 char name[32]; 307 308 dict = device_properties(dev); 309 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 310 311 /* enable configuration of irq 14/15 for VIA native IDE */ 312 if (device_is_a(dev, "viaide") && 313 strncmp(model_name, "Pegasos", 7) == 0) { 314 b = prop_bool_create(true); 315 KASSERT(b != NULL); 316 (void)prop_dictionary_set(dict, 317 "use-compat-native-irq", b); 318 prop_object_release(b); 319 } 320 321 if (node != 0) { 322 int pci_class = 0; 323 324 prop_dictionary_set_uint32(dict, "device_node", node); 325 326 /* see if this is going to be console */ 327 memset(name, 0, sizeof(name)); 328 OF_getprop(node, "device_type", name, sizeof(name)); 329 330 OF_getprop(node, "class-code", &pci_class, 331 sizeof pci_class); 332 pci_class = (pci_class >> 16) & 0xff; 333 334 if (strcmp(name, "display") == 0 || 335 strcmp(name, "ATY,DDParent") == 0 || 336 pci_class == PCI_CLASS_DISPLAY) { 337 /* setup display properties for fb driver */ 338 prop_dictionary_set_bool(dict, "is_console", 0); 339 copy_disp_props(dev, node, dict); 340 } 341 if (pci_class == PCI_CLASS_NETWORK) { 342 of_to_dataprop(dict, node, "local-mac-address", 343 "mac-address"); 344 of_to_dataprop(dict, node, "shared-pins", 345 "shared-pins"); 346 } 347 } 348 #ifdef macppc 349 /* 350 * XXX 351 * some macppc boxes have onboard devices where parts or all of 352 * the PCI_INTERRUPT register are hardwired to 0 353 */ 354 if (pa->pa_intrpin == 0) 355 pa->pa_intrpin = 1; 356 #endif 357 } 358 359 if (booted_device) 360 return; 361 362 /* 363 * Skip over devices that are really just layers of NetBSD 364 * autoconf(9) we should just skip as they do not have any 365 * OFW devices. 366 */ 367 if (device_is_a(device_parent(dev), "atapibus") || 368 device_is_a(device_parent(dev), "atabus") || 369 device_is_a(device_parent(dev), "pci") || 370 device_is_a(device_parent(dev), "scsibus")) { 371 if (device_parent(device_parent(dev)) != parent) 372 return; 373 } else { 374 if (device_parent(dev) != parent) 375 return; 376 } 377 378 /* 379 * Get the address part of the current path component. The 380 * last component of the canonical bootpath may have no 381 * address (eg, "disk"), in which case we need to get the 382 * address from the original bootpath instead. 383 */ 384 p = strchr(cp, '@'); 385 if (!p) { 386 if (bp) 387 p = strchr(bp, '@'); 388 if (!p) 389 addr = 0; 390 else 391 addr = strtoul(p + 1, &p, 16); 392 } else 393 addr = strtoul(p + 1, &p, 16); 394 395 /* if the current path has more address, grab that too */ 396 if (p && *p == ',') 397 addr2 = strtoul(p + 1, &p, 16); 398 else 399 addr2 = 0; 400 401 if (device_is_a(device_parent(dev), "mainbus")) { 402 struct confargs *ca = aux; 403 404 if (strcmp(ca->ca_name, "ofw") == 0) /* XXX */ 405 return; 406 if (strcmp(ca->ca_name, "gt") == 0) 407 parent = dev; 408 if (addr != ca->ca_reg[0]) 409 return; 410 } else if (device_is_a(device_parent(dev), "gt")) { 411 /* 412 * Special handle for MV64361 on PegasosII(ofppc). 413 */ 414 if (device_is_a(dev, "mvgbec")) { 415 /* 416 * Fix cp to /port@N from /ethernet/portN. (N is 0...2) 417 */ 418 static char fix_cp[8] = "/port@N"; 419 420 if (strlen(cp) != 15 || 421 strncmp(cp, "/ethernet/port", 14) != 0) 422 return; 423 fix_cp[7] = *(cp + 15); 424 p = fix_cp; 425 #if NGTPCI > 0 426 } else if (device_is_a(dev, "gtpci")) { 427 if (gtpci_mem_bs_tag != NULL && 428 addr != gtpci_mem_bs_tag->pbs_base) 429 return; 430 #endif 431 } else 432 return; 433 } else if (device_is_a(device_parent(dev), "pci")) { 434 struct pci_attach_args *pa = aux; 435 436 if (addr != pa->pa_device || 437 addr2 != pa->pa_function) 438 return; 439 } else if (device_is_a(device_parent(dev), "obio")) { 440 struct confargs *ca = aux; 441 442 if (addr != ca->ca_reg[0]) 443 return; 444 } else if (device_is_a(device_parent(dev), "scsibus") || 445 device_is_a(device_parent(dev), "atapibus")) { 446 struct scsipibus_attach_args *sa = aux; 447 448 /* periph_target is target for scsi, drive # for atapi */ 449 if (addr != sa->sa_periph->periph_target) 450 return; 451 } else if (device_is_a(device_parent(device_parent(dev)), "pciide") || 452 device_is_a(device_parent(device_parent(dev)), "viaide") || 453 device_is_a(device_parent(device_parent(dev)), "slide")) { 454 struct ata_device *adev = aux; 455 456 if (addr != adev->adev_channel || 457 addr2 != adev->adev_drv_data->drive) 458 return; 459 } else if (device_is_a(device_parent(device_parent(dev)), "wdc")) { 460 struct ata_device *adev = aux; 461 462 if (addr != adev->adev_drv_data->drive) 463 return; 464 } else 465 return; 466 467 /* If we reach this point, then dev is a match for the current 468 * path component. 469 */ 470 471 if (p && *p) { 472 parent = dev; 473 cp = p; 474 bp = strchr(bp, '/'); 475 if (bp) 476 bp++; 477 return; 478 } else { 479 booted_device = dev; 480 booted_partition = 0; /* XXX -- should be extracted from bootpath */ 481 return; 482 } 483 } 484 485 /* 486 * Setup root device. 487 * Configure swap area. 488 */ 489 void 490 cpu_rootconf(void) 491 { 492 printf("boot device: %s\n", 493 booted_device ? device_xname(booted_device) : "<unknown>"); 494 495 rootconf(); 496 } 497 498 /* 499 * Find OF-device corresponding to the PCI device. 500 */ 501 int 502 pcidev_to_ofdev(pci_chipset_tag_t pc, pcitag_t tag) 503 { 504 int bus, dev, func; 505 u_int reg[5]; 506 int p, q; 507 int l, b, d, f; 508 509 pci_decompose_tag(pc, tag, &bus, &dev, &func); 510 511 for (q = OF_peer(0); q; q = p) { 512 l = OF_getprop(q, "assigned-addresses", reg, sizeof(reg)); 513 if (l > 4) { 514 b = (reg[0] >> 16) & 0xff; 515 d = (reg[0] >> 11) & 0x1f; 516 f = (reg[0] >> 8) & 0x07; 517 518 if (b == bus && d == dev && f == func) 519 return q; 520 } 521 if ((p = OF_child(q))) 522 continue; 523 while (q) { 524 if ((p = OF_peer(q))) 525 break; 526 q = OF_parent(q); 527 } 528 } 529 return 0; 530 } 531