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aic7xxx_pci.c
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linux-6.19.14/drivers/scsi/aic7xxx/aic7xxx_pci.c
1/* 2 * Product specific probe and attach routines for: 3 * 3940, 2940, aic7895, aic7890, aic7880, 4 * aic7870, aic7860 and aic7850 SCSI controllers 5 * 6 * Copyright (c) 1994-2001 Justin T. Gibbs. 7 * Copyright (c) 2000-2001 Adaptec Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 17 * substantially similar to the "NO WARRANTY" disclaimer below 18 * ("Disclaimer") and any redistribution must be conditioned upon 19 * including a substantially similar Disclaimer requirement for further 20 * binary redistribution. 21 * 3. Neither the names of the above-listed copyright holders nor the names 22 * of any contributors may be used to endorse or promote products derived 23 * from this software without specific prior written permission. 24 * 25 * Alternatively, this software may be distributed under the terms of the 26 * GNU General Public License ("GPL") version 2 as published by the Free 27 * Software Foundation. 28 * 29 * NO WARRANTY 30 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 31 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 32 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 33 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 34 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 39 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGES. 41 * 42 * $Id: //depot/aic7xxx/aic7xxx/aic7xxx_pci.c#79 $ 43 */ 44 45#include "aic7xxx_osm.h" 46#include "aic7xxx_inline.h" 47#include "aic7xxx_93cx6.h" 48#include "aic7xxx_pci.h" 49 50static inline uint64_t 51ahc_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor) 52{ 53 uint64_t id; 54 55 id = subvendor 56 | (subdevice << 16) 57 | ((uint64_t)vendor << 32) 58 | ((uint64_t)device << 48); 59 60 return (id); 61} 62 63#define AHC_PCI_IOADDR PCIR_MAPS /* I/O Address */ 64#define AHC_PCI_MEMADDR (PCIR_MAPS + 4) /* Mem I/O Address */ 65 66#define DEVID_9005_TYPE(id) ((id) & 0xF) 67#define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */ 68#define DEVID_9005_TYPE_AAA 0x3 /* RAID Card */ 69#define DEVID_9005_TYPE_SISL 0x5 /* Container ROMB */ 70#define DEVID_9005_TYPE_MB 0xF /* On Motherboard */ 71 72#define DEVID_9005_MAXRATE(id) (((id) & 0x30) >> 4) 73#define DEVID_9005_MAXRATE_U160 0x0 74#define DEVID_9005_MAXRATE_ULTRA2 0x1 75#define DEVID_9005_MAXRATE_ULTRA 0x2 76#define DEVID_9005_MAXRATE_FAST 0x3 77 78#define DEVID_9005_MFUNC(id) (((id) & 0x40) >> 6) 79 80#define DEVID_9005_CLASS(id) (((id) & 0xFF00) >> 8) 81#define DEVID_9005_CLASS_SPI 0x0 /* Parallel SCSI */ 82 83#define SUBID_9005_TYPE(id) ((id) & 0xF) 84#define SUBID_9005_TYPE_MB 0xF /* On Motherboard */ 85#define SUBID_9005_TYPE_CARD 0x0 /* Standard Card */ 86#define SUBID_9005_TYPE_LCCARD 0x1 /* Low Cost Card */ 87#define SUBID_9005_TYPE_RAID 0x3 /* Combined with Raid */ 88 89#define SUBID_9005_TYPE_KNOWN(id) \ 90 ((((id) & 0xF) == SUBID_9005_TYPE_MB) \ 91 || (((id) & 0xF) == SUBID_9005_TYPE_CARD) \ 92 || (((id) & 0xF) == SUBID_9005_TYPE_LCCARD) \ 93 || (((id) & 0xF) == SUBID_9005_TYPE_RAID)) 94 95#define SUBID_9005_MAXRATE(id) (((id) & 0x30) >> 4) 96#define SUBID_9005_MAXRATE_ULTRA2 0x0 97#define SUBID_9005_MAXRATE_ULTRA 0x1 98#define SUBID_9005_MAXRATE_U160 0x2 99#define SUBID_9005_MAXRATE_RESERVED 0x3 100 101#define SUBID_9005_SEEPTYPE(id) \ 102 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 103 ? ((id) & 0xC0) >> 6 \ 104 : ((id) & 0x300) >> 8) 105#define SUBID_9005_SEEPTYPE_NONE 0x0 106#define SUBID_9005_SEEPTYPE_1K 0x1 107#define SUBID_9005_SEEPTYPE_2K_4K 0x2 108#define SUBID_9005_SEEPTYPE_RESERVED 0x3 109#define SUBID_9005_AUTOTERM(id) \ 110 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 111 ? (((id) & 0x400) >> 10) == 0 \ 112 : (((id) & 0x40) >> 6) == 0) 113 114#define SUBID_9005_NUMCHAN(id) \ 115 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 116 ? ((id) & 0x300) >> 8 \ 117 : ((id) & 0xC00) >> 10) 118 119#define SUBID_9005_LEGACYCONN(id) \ 120 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 121 ? 0 \ 122 : ((id) & 0x80) >> 7) 123 124#define SUBID_9005_MFUNCENB(id) \ 125 ((SUBID_9005_TYPE(id) == SUBID_9005_TYPE_MB) \ 126 ? ((id) & 0x800) >> 11 \ 127 : ((id) & 0x1000) >> 12) 128/* 129 * Informational only. Should use chip register to be 130 * certain, but may be use in identification strings. 131 */ 132#define SUBID_9005_CARD_SCSIWIDTH_MASK 0x2000 133#define SUBID_9005_CARD_PCIWIDTH_MASK 0x4000 134#define SUBID_9005_CARD_SEDIFF_MASK 0x8000 135 136static ahc_device_setup_t ahc_aic785X_setup; 137static ahc_device_setup_t ahc_aic7860_setup; 138static ahc_device_setup_t ahc_apa1480_setup; 139static ahc_device_setup_t ahc_aic7870_setup; 140static ahc_device_setup_t ahc_aic7870h_setup; 141static ahc_device_setup_t ahc_aha394X_setup; 142static ahc_device_setup_t ahc_aha394Xh_setup; 143static ahc_device_setup_t ahc_aha494X_setup; 144static ahc_device_setup_t ahc_aha494Xh_setup; 145static ahc_device_setup_t ahc_aha398X_setup; 146static ahc_device_setup_t ahc_aic7880_setup; 147static ahc_device_setup_t ahc_aic7880h_setup; 148static ahc_device_setup_t ahc_aha2940Pro_setup; 149static ahc_device_setup_t ahc_aha394XU_setup; 150static ahc_device_setup_t ahc_aha394XUh_setup; 151static ahc_device_setup_t ahc_aha398XU_setup; 152static ahc_device_setup_t ahc_aic7890_setup; 153static ahc_device_setup_t ahc_aic7892_setup; 154static ahc_device_setup_t ahc_aic7895_setup; 155static ahc_device_setup_t ahc_aic7895h_setup; 156static ahc_device_setup_t ahc_aic7896_setup; 157static ahc_device_setup_t ahc_aic7899_setup; 158static ahc_device_setup_t ahc_aha29160C_setup; 159static ahc_device_setup_t ahc_raid_setup; 160static ahc_device_setup_t ahc_aha394XX_setup; 161static ahc_device_setup_t ahc_aha494XX_setup; 162static ahc_device_setup_t ahc_aha398XX_setup; 163 164static const struct ahc_pci_identity ahc_pci_ident_table[] = { 165 /* aic7850 based controllers */ 166 { 167 ID_AHA_2902_04_10_15_20C_30C, 168 ID_ALL_MASK, 169 "Adaptec 2902/04/10/15/20C/30C SCSI adapter", 170 ahc_aic785X_setup 171 }, 172 /* aic7860 based controllers */ 173 { 174 ID_AHA_2930CU, 175 ID_ALL_MASK, 176 "Adaptec 2930CU SCSI adapter", 177 ahc_aic7860_setup 178 }, 179 { 180 ID_AHA_1480A & ID_DEV_VENDOR_MASK, 181 ID_DEV_VENDOR_MASK, 182 "Adaptec 1480A Ultra SCSI adapter", 183 ahc_apa1480_setup 184 }, 185 { 186 ID_AHA_2940AU_0 & ID_DEV_VENDOR_MASK, 187 ID_DEV_VENDOR_MASK, 188 "Adaptec 2940A Ultra SCSI adapter", 189 ahc_aic7860_setup 190 }, 191 { 192 ID_AHA_2940AU_CN & ID_DEV_VENDOR_MASK, 193 ID_DEV_VENDOR_MASK, 194 "Adaptec 2940A/CN Ultra SCSI adapter", 195 ahc_aic7860_setup 196 }, 197 { 198 ID_AHA_2930C_VAR & ID_DEV_VENDOR_MASK, 199 ID_DEV_VENDOR_MASK, 200 "Adaptec 2930C Ultra SCSI adapter (VAR)", 201 ahc_aic7860_setup 202 }, 203 /* aic7870 based controllers */ 204 { 205 ID_AHA_2940, 206 ID_ALL_MASK, 207 "Adaptec 2940 SCSI adapter", 208 ahc_aic7870_setup 209 }, 210 { 211 ID_AHA_3940, 212 ID_ALL_MASK, 213 "Adaptec 3940 SCSI adapter", 214 ahc_aha394X_setup 215 }, 216 { 217 ID_AHA_398X, 218 ID_ALL_MASK, 219 "Adaptec 398X SCSI RAID adapter", 220 ahc_aha398X_setup 221 }, 222 { 223 ID_AHA_2944, 224 ID_ALL_MASK, 225 "Adaptec 2944 SCSI adapter", 226 ahc_aic7870h_setup 227 }, 228 { 229 ID_AHA_3944, 230 ID_ALL_MASK, 231 "Adaptec 3944 SCSI adapter", 232 ahc_aha394Xh_setup 233 }, 234 { 235 ID_AHA_4944, 236 ID_ALL_MASK, 237 "Adaptec 4944 SCSI adapter", 238 ahc_aha494Xh_setup 239 }, 240 /* aic7880 based controllers */ 241 { 242 ID_AHA_2940U & ID_DEV_VENDOR_MASK, 243 ID_DEV_VENDOR_MASK, 244 "Adaptec 2940 Ultra SCSI adapter", 245 ahc_aic7880_setup 246 }, 247 { 248 ID_AHA_3940U & ID_DEV_VENDOR_MASK, 249 ID_DEV_VENDOR_MASK, 250 "Adaptec 3940 Ultra SCSI adapter", 251 ahc_aha394XU_setup 252 }, 253 { 254 ID_AHA_2944U & ID_DEV_VENDOR_MASK, 255 ID_DEV_VENDOR_MASK, 256 "Adaptec 2944 Ultra SCSI adapter", 257 ahc_aic7880h_setup 258 }, 259 { 260 ID_AHA_3944U & ID_DEV_VENDOR_MASK, 261 ID_DEV_VENDOR_MASK, 262 "Adaptec 3944 Ultra SCSI adapter", 263 ahc_aha394XUh_setup 264 }, 265 { 266 ID_AHA_398XU & ID_DEV_VENDOR_MASK, 267 ID_DEV_VENDOR_MASK, 268 "Adaptec 398X Ultra SCSI RAID adapter", 269 ahc_aha398XU_setup 270 }, 271 { 272 /* 273 * XXX Don't know the slot numbers 274 * so we can't identify channels 275 */ 276 ID_AHA_4944U & ID_DEV_VENDOR_MASK, 277 ID_DEV_VENDOR_MASK, 278 "Adaptec 4944 Ultra SCSI adapter", 279 ahc_aic7880h_setup 280 }, 281 { 282 ID_AHA_2930U & ID_DEV_VENDOR_MASK, 283 ID_DEV_VENDOR_MASK, 284 "Adaptec 2930 Ultra SCSI adapter", 285 ahc_aic7880_setup 286 }, 287 { 288 ID_AHA_2940U_PRO & ID_DEV_VENDOR_MASK, 289 ID_DEV_VENDOR_MASK, 290 "Adaptec 2940 Pro Ultra SCSI adapter", 291 ahc_aha2940Pro_setup 292 }, 293 { 294 ID_AHA_2940U_CN & ID_DEV_VENDOR_MASK, 295 ID_DEV_VENDOR_MASK, 296 "Adaptec 2940/CN Ultra SCSI adapter", 297 ahc_aic7880_setup 298 }, 299 /* Ignore all SISL (AAC on MB) based controllers. */ 300 { 301 ID_9005_SISL_ID, 302 ID_9005_SISL_MASK, 303 NULL, 304 NULL 305 }, 306 /* aic7890 based controllers */ 307 { 308 ID_AHA_2930U2, 309 ID_ALL_MASK, 310 "Adaptec 2930 Ultra2 SCSI adapter", 311 ahc_aic7890_setup 312 }, 313 { 314 ID_AHA_2940U2B, 315 ID_ALL_MASK, 316 "Adaptec 2940B Ultra2 SCSI adapter", 317 ahc_aic7890_setup 318 }, 319 { 320 ID_AHA_2940U2_OEM, 321 ID_ALL_MASK, 322 "Adaptec 2940 Ultra2 SCSI adapter (OEM)", 323 ahc_aic7890_setup 324 }, 325 { 326 ID_AHA_2940U2, 327 ID_ALL_MASK, 328 "Adaptec 2940 Ultra2 SCSI adapter", 329 ahc_aic7890_setup 330 }, 331 { 332 ID_AHA_2950U2B, 333 ID_ALL_MASK, 334 "Adaptec 2950 Ultra2 SCSI adapter", 335 ahc_aic7890_setup 336 }, 337 { 338 ID_AIC7890_ARO, 339 ID_ALL_MASK, 340 "Adaptec aic7890/91 Ultra2 SCSI adapter (ARO)", 341 ahc_aic7890_setup 342 }, 343 { 344 ID_AAA_131U2, 345 ID_ALL_MASK, 346 "Adaptec AAA-131 Ultra2 RAID adapter", 347 ahc_aic7890_setup 348 }, 349 /* aic7892 based controllers */ 350 { 351 ID_AHA_29160, 352 ID_ALL_MASK, 353 "Adaptec 29160 Ultra160 SCSI adapter", 354 ahc_aic7892_setup 355 }, 356 { 357 ID_AHA_29160_CPQ, 358 ID_ALL_MASK, 359 "Adaptec (Compaq OEM) 29160 Ultra160 SCSI adapter", 360 ahc_aic7892_setup 361 }, 362 { 363 ID_AHA_29160N, 364 ID_ALL_MASK, 365 "Adaptec 29160N Ultra160 SCSI adapter", 366 ahc_aic7892_setup 367 }, 368 { 369 ID_AHA_29160C, 370 ID_ALL_MASK, 371 "Adaptec 29160C Ultra160 SCSI adapter", 372 ahc_aha29160C_setup 373 }, 374 { 375 ID_AHA_29160B, 376 ID_ALL_MASK, 377 "Adaptec 29160B Ultra160 SCSI adapter", 378 ahc_aic7892_setup 379 }, 380 { 381 ID_AHA_19160B, 382 ID_ALL_MASK, 383 "Adaptec 19160B Ultra160 SCSI adapter", 384 ahc_aic7892_setup 385 }, 386 { 387 ID_AIC7892_ARO, 388 ID_ALL_MASK, 389 "Adaptec aic7892 Ultra160 SCSI adapter (ARO)", 390 ahc_aic7892_setup 391 }, 392 { 393 ID_AHA_2915_30LP, 394 ID_ALL_MASK, 395 "Adaptec 2915/30LP Ultra160 SCSI adapter", 396 ahc_aic7892_setup 397 }, 398 /* aic7895 based controllers */ 399 { 400 ID_AHA_2940U_DUAL, 401 ID_ALL_MASK, 402 "Adaptec 2940/DUAL Ultra SCSI adapter", 403 ahc_aic7895_setup 404 }, 405 { 406 ID_AHA_3940AU, 407 ID_ALL_MASK, 408 "Adaptec 3940A Ultra SCSI adapter", 409 ahc_aic7895_setup 410 }, 411 { 412 ID_AHA_3944AU, 413 ID_ALL_MASK, 414 "Adaptec 3944A Ultra SCSI adapter", 415 ahc_aic7895h_setup 416 }, 417 { 418 ID_AIC7895_ARO, 419 ID_AIC7895_ARO_MASK, 420 "Adaptec aic7895 Ultra SCSI adapter (ARO)", 421 ahc_aic7895_setup 422 }, 423 /* aic7896/97 based controllers */ 424 { 425 ID_AHA_3950U2B_0, 426 ID_ALL_MASK, 427 "Adaptec 3950B Ultra2 SCSI adapter", 428 ahc_aic7896_setup 429 }, 430 { 431 ID_AHA_3950U2B_1, 432 ID_ALL_MASK, 433 "Adaptec 3950B Ultra2 SCSI adapter", 434 ahc_aic7896_setup 435 }, 436 { 437 ID_AHA_3950U2D_0, 438 ID_ALL_MASK, 439 "Adaptec 3950D Ultra2 SCSI adapter", 440 ahc_aic7896_setup 441 }, 442 { 443 ID_AHA_3950U2D_1, 444 ID_ALL_MASK, 445 "Adaptec 3950D Ultra2 SCSI adapter", 446 ahc_aic7896_setup 447 }, 448 { 449 ID_AIC7896_ARO, 450 ID_ALL_MASK, 451 "Adaptec aic7896/97 Ultra2 SCSI adapter (ARO)", 452 ahc_aic7896_setup 453 }, 454 /* aic7899 based controllers */ 455 { 456 ID_AHA_3960D, 457 ID_ALL_MASK, 458 "Adaptec 3960D Ultra160 SCSI adapter", 459 ahc_aic7899_setup 460 }, 461 { 462 ID_AHA_3960D_CPQ, 463 ID_ALL_MASK, 464 "Adaptec (Compaq OEM) 3960D Ultra160 SCSI adapter", 465 ahc_aic7899_setup 466 }, 467 { 468 ID_AIC7899_ARO, 469 ID_ALL_MASK, 470 "Adaptec aic7899 Ultra160 SCSI adapter (ARO)", 471 ahc_aic7899_setup 472 }, 473 /* Generic chip probes for devices we don't know 'exactly' */ 474 { 475 ID_AIC7850 & ID_DEV_VENDOR_MASK, 476 ID_DEV_VENDOR_MASK, 477 "Adaptec aic7850 SCSI adapter", 478 ahc_aic785X_setup 479 }, 480 { 481 ID_AIC7855 & ID_DEV_VENDOR_MASK, 482 ID_DEV_VENDOR_MASK, 483 "Adaptec aic7855 SCSI adapter", 484 ahc_aic785X_setup 485 }, 486 { 487 ID_AIC7859 & ID_DEV_VENDOR_MASK, 488 ID_DEV_VENDOR_MASK, 489 "Adaptec aic7859 SCSI adapter", 490 ahc_aic7860_setup 491 }, 492 { 493 ID_AIC7860 & ID_DEV_VENDOR_MASK, 494 ID_DEV_VENDOR_MASK, 495 "Adaptec aic7860 Ultra SCSI adapter", 496 ahc_aic7860_setup 497 }, 498 { 499 ID_AIC7870 & ID_DEV_VENDOR_MASK, 500 ID_DEV_VENDOR_MASK, 501 "Adaptec aic7870 SCSI adapter", 502 ahc_aic7870_setup 503 }, 504 { 505 ID_AIC7880 & ID_DEV_VENDOR_MASK, 506 ID_DEV_VENDOR_MASK, 507 "Adaptec aic7880 Ultra SCSI adapter", 508 ahc_aic7880_setup 509 }, 510 { 511 ID_AIC7890 & ID_9005_GENERIC_MASK, 512 ID_9005_GENERIC_MASK, 513 "Adaptec aic7890/91 Ultra2 SCSI adapter", 514 ahc_aic7890_setup 515 }, 516 { 517 ID_AIC7892 & ID_9005_GENERIC_MASK, 518 ID_9005_GENERIC_MASK, 519 "Adaptec aic7892 Ultra160 SCSI adapter", 520 ahc_aic7892_setup 521 }, 522 { 523 ID_AIC7895 & ID_DEV_VENDOR_MASK, 524 ID_DEV_VENDOR_MASK, 525 "Adaptec aic7895 Ultra SCSI adapter", 526 ahc_aic7895_setup 527 }, 528 { 529 ID_AIC7896 & ID_9005_GENERIC_MASK, 530 ID_9005_GENERIC_MASK, 531 "Adaptec aic7896/97 Ultra2 SCSI adapter", 532 ahc_aic7896_setup 533 }, 534 { 535 ID_AIC7899 & ID_9005_GENERIC_MASK, 536 ID_9005_GENERIC_MASK, 537 "Adaptec aic7899 Ultra160 SCSI adapter", 538 ahc_aic7899_setup 539 }, 540 { 541 ID_AIC7810 & ID_DEV_VENDOR_MASK, 542 ID_DEV_VENDOR_MASK, 543 "Adaptec aic7810 RAID memory controller", 544 ahc_raid_setup 545 }, 546 { 547 ID_AIC7815 & ID_DEV_VENDOR_MASK, 548 ID_DEV_VENDOR_MASK, 549 "Adaptec aic7815 RAID memory controller", 550 ahc_raid_setup 551 } 552}; 553 554static const u_int ahc_num_pci_devs = ARRAY_SIZE(ahc_pci_ident_table); 555 556#define AHC_394X_SLOT_CHANNEL_A 4 557#define AHC_394X_SLOT_CHANNEL_B 5 558 559#define AHC_398X_SLOT_CHANNEL_A 4 560#define AHC_398X_SLOT_CHANNEL_B 8 561#define AHC_398X_SLOT_CHANNEL_C 12 562 563#define AHC_494X_SLOT_CHANNEL_A 4 564#define AHC_494X_SLOT_CHANNEL_B 5 565#define AHC_494X_SLOT_CHANNEL_C 6 566#define AHC_494X_SLOT_CHANNEL_D 7 567 568#define DEVCONFIG 0x40 569#define PCIERRGENDIS 0x80000000ul 570#define SCBSIZE32 0x00010000ul /* aic789X only */ 571#define REXTVALID 0x00001000ul /* ultra cards only */ 572#define MPORTMODE 0x00000400ul /* aic7870+ only */ 573#define RAMPSM 0x00000200ul /* aic7870+ only */ 574#define VOLSENSE 0x00000100ul 575#define PCI64BIT 0x00000080ul /* 64Bit PCI bus (Ultra2 Only)*/ 576#define SCBRAMSEL 0x00000080ul 577#define MRDCEN 0x00000040ul 578#define EXTSCBTIME 0x00000020ul /* aic7870 only */ 579#define EXTSCBPEN 0x00000010ul /* aic7870 only */ 580#define BERREN 0x00000008ul 581#define DACEN 0x00000004ul 582#define STPWLEVEL 0x00000002ul 583#define DIFACTNEGEN 0x00000001ul /* aic7870 only */ 584 585#define CSIZE_LATTIME 0x0c 586#define CACHESIZE 0x0000003ful /* only 5 bits */ 587#define LATTIME 0x0000ff00ul 588 589/* PCI STATUS definitions */ 590#define DPE 0x80 591#define SSE 0x40 592#define RMA 0x20 593#define RTA 0x10 594#define STA 0x08 595#define DPR 0x01 596 597static int ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor, 598 uint16_t subdevice, uint16_t subvendor); 599static int ahc_ext_scbram_present(struct ahc_softc *ahc); 600static void ahc_scbram_config(struct ahc_softc *ahc, int enable, 601 int pcheck, int fast, int large); 602static void ahc_probe_ext_scbram(struct ahc_softc *ahc); 603static void check_extport(struct ahc_softc *ahc, u_int *sxfrctl1); 604static void ahc_parse_pci_eeprom(struct ahc_softc *ahc, 605 struct seeprom_config *sc); 606static void configure_termination(struct ahc_softc *ahc, 607 struct seeprom_descriptor *sd, 608 u_int adapter_control, 609 u_int *sxfrctl1); 610 611static void ahc_new_term_detect(struct ahc_softc *ahc, 612 int *enableSEC_low, 613 int *enableSEC_high, 614 int *enablePRI_low, 615 int *enablePRI_high, 616 int *eeprom_present); 617static void aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 618 int *internal68_present, 619 int *externalcable_present, 620 int *eeprom_present); 621static void aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 622 int *externalcable_present, 623 int *eeprom_present); 624static void write_brdctl(struct ahc_softc *ahc, uint8_t value); 625static uint8_t read_brdctl(struct ahc_softc *ahc); 626static void ahc_pci_intr(struct ahc_softc *ahc); 627static int ahc_pci_chip_init(struct ahc_softc *ahc); 628 629static int 630ahc_9005_subdevinfo_valid(uint16_t device, uint16_t vendor, 631 uint16_t subdevice, uint16_t subvendor) 632{ 633 int result; 634 635 /* Default to invalid. */ 636 result = 0; 637 if (vendor == 0x9005 638 && subvendor == 0x9005 639 && subdevice != device 640 && SUBID_9005_TYPE_KNOWN(subdevice) != 0) { 641 642 switch (SUBID_9005_TYPE(subdevice)) { 643 case SUBID_9005_TYPE_MB: 644 break; 645 case SUBID_9005_TYPE_CARD: 646 case SUBID_9005_TYPE_LCCARD: 647 /* 648 * Currently only trust Adaptec cards to 649 * get the sub device info correct. 650 */ 651 if (DEVID_9005_TYPE(device) == DEVID_9005_TYPE_HBA) 652 result = 1; 653 break; 654 case SUBID_9005_TYPE_RAID: 655 break; 656 default: 657 break; 658 } 659 } 660 return (result); 661} 662 663const struct ahc_pci_identity * 664ahc_find_pci_device(ahc_dev_softc_t pci) 665{ 666 uint64_t full_id; 667 uint16_t device; 668 uint16_t vendor; 669 uint16_t subdevice; 670 uint16_t subvendor; 671 const struct ahc_pci_identity *entry; 672 u_int i; 673 674 vendor = ahc_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2); 675 device = ahc_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2); 676 subvendor = ahc_pci_read_config(pci, PCI_SUBSYSTEM_VENDOR_ID, /*bytes*/2); 677 subdevice = ahc_pci_read_config(pci, PCI_SUBSYSTEM_ID, /*bytes*/2); 678 full_id = ahc_compose_id(device, vendor, subdevice, subvendor); 679 680 /* 681 * If the second function is not hooked up, ignore it. 682 * Unfortunately, not all MB vendors implement the 683 * subdevice ID as per the Adaptec spec, so do our best 684 * to sanity check it prior to accepting the subdevice 685 * ID as valid. 686 */ 687 if (ahc_get_pci_function(pci) > 0 688 && ahc_9005_subdevinfo_valid(device, vendor, subdevice, subvendor) 689 && SUBID_9005_MFUNCENB(subdevice) == 0) 690 return (NULL); 691 692 for (i = 0; i < ahc_num_pci_devs; i++) { 693 entry = &ahc_pci_ident_table[i]; 694 if (entry->full_id == (full_id & entry->id_mask)) { 695 /* Honor exclusion entries. */ 696 if (entry->name == NULL) 697 return (NULL); 698 return (entry); 699 } 700 } 701 return (NULL); 702} 703 704int 705ahc_pci_config(struct ahc_softc *ahc, const struct ahc_pci_identity *entry) 706{ 707 u_int command; 708 u_int our_id; 709 u_int sxfrctl1; 710 u_int scsiseq; 711 u_int dscommand0; 712 uint32_t devconfig; 713 int error; 714 uint8_t sblkctl; 715 716 our_id = 0; 717 error = entry->setup(ahc); 718 if (error != 0) 719 return (error); 720 ahc->chip |= AHC_PCI; 721 ahc->description = entry->name; 722 723 pci_set_power_state(ahc->dev_softc, AHC_POWER_STATE_D0); 724 725 error = ahc_pci_map_registers(ahc); 726 if (error != 0) 727 return (error); 728 729 /* 730 * Before we continue probing the card, ensure that 731 * its interrupts are *disabled*. We don't want 732 * a misstep to hang the machine in an interrupt 733 * storm. 734 */ 735 ahc_intr_enable(ahc, FALSE); 736 737 devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 738 739 /* 740 * If we need to support high memory, enable dual 741 * address cycles. This bit must be set to enable 742 * high address bit generation even if we are on a 743 * 64bit bus (PCI64BIT set in devconfig). 744 */ 745 if ((ahc->flags & AHC_39BIT_ADDRESSING) != 0) { 746 747 if (bootverbose) 748 printk("%s: Enabling 39Bit Addressing\n", 749 ahc_name(ahc)); 750 devconfig |= DACEN; 751 } 752 753 /* Ensure that pci error generation, a test feature, is disabled. */ 754 devconfig |= PCIERRGENDIS; 755 756 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4); 757 758 /* Ensure busmastering is enabled */ 759 command = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2); 760 command |= PCIM_CMD_BUSMASTEREN; 761 762 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, command, /*bytes*/2); 763 764 /* On all PCI adapters, we allow SCB paging */ 765 ahc->flags |= AHC_PAGESCBS; 766 767 error = ahc_softc_init(ahc); 768 if (error != 0) 769 return (error); 770 771 /* 772 * Disable PCI parity error checking. Users typically 773 * do this to work around broken PCI chipsets that get 774 * the parity timing wrong and thus generate lots of spurious 775 * errors. The chip only allows us to disable *all* parity 776 * error reporting when doing this, so CIO bus, scb ram, and 777 * scratch ram parity errors will be ignored too. 778 */ 779 if ((ahc->flags & AHC_DISABLE_PCI_PERR) != 0) 780 ahc->seqctl |= FAILDIS; 781 782 ahc->bus_intr = ahc_pci_intr; 783 ahc->bus_chip_init = ahc_pci_chip_init; 784 785 /* Remember how the card was setup in case there is no SEEPROM */ 786 if ((ahc_inb(ahc, HCNTRL) & POWRDN) == 0) { 787 ahc_pause(ahc); 788 if ((ahc->features & AHC_ULTRA2) != 0) 789 our_id = ahc_inb(ahc, SCSIID_ULTRA2) & OID; 790 else 791 our_id = ahc_inb(ahc, SCSIID) & OID; 792 sxfrctl1 = ahc_inb(ahc, SXFRCTL1) & STPWEN; 793 scsiseq = ahc_inb(ahc, SCSISEQ); 794 } else { 795 sxfrctl1 = STPWEN; 796 our_id = 7; 797 scsiseq = 0; 798 } 799 800 error = ahc_reset(ahc, /*reinit*/FALSE); 801 if (error != 0) 802 return (ENXIO); 803 804 if ((ahc->features & AHC_DT) != 0) { 805 u_int sfunct; 806 807 /* Perform ALT-Mode Setup */ 808 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 809 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 810 ahc_outb(ahc, OPTIONMODE, 811 OPTIONMODE_DEFAULTS|AUTOACKEN|BUSFREEREV|EXPPHASEDIS); 812 ahc_outb(ahc, SFUNCT, sfunct); 813 814 /* Normal mode setup */ 815 ahc_outb(ahc, CRCCONTROL1, CRCVALCHKEN|CRCENDCHKEN|CRCREQCHKEN 816 |TARGCRCENDEN); 817 } 818 819 dscommand0 = ahc_inb(ahc, DSCOMMAND0); 820 dscommand0 |= MPARCKEN|CACHETHEN; 821 if ((ahc->features & AHC_ULTRA2) != 0) { 822 823 /* 824 * DPARCKEN doesn't work correctly on 825 * some MBs so don't use it. 826 */ 827 dscommand0 &= ~DPARCKEN; 828 } 829 830 /* 831 * Handle chips that must have cache line 832 * streaming (dis/en)abled. 833 */ 834 if ((ahc->bugs & AHC_CACHETHEN_DIS_BUG) != 0) 835 dscommand0 |= CACHETHEN; 836 837 if ((ahc->bugs & AHC_CACHETHEN_BUG) != 0) 838 dscommand0 &= ~CACHETHEN; 839 840 ahc_outb(ahc, DSCOMMAND0, dscommand0); 841 842 ahc->pci_cachesize = 843 ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, 844 /*bytes*/1) & CACHESIZE; 845 ahc->pci_cachesize *= 4; 846 847 if ((ahc->bugs & AHC_PCI_2_1_RETRY_BUG) != 0 848 && ahc->pci_cachesize == 4) { 849 850 ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME, 851 0, /*bytes*/1); 852 ahc->pci_cachesize = 0; 853 } 854 855 /* 856 * We cannot perform ULTRA speeds without the presence 857 * of the external precision resistor. 858 */ 859 if ((ahc->features & AHC_ULTRA) != 0) { 860 uint32_t devconfig; 861 862 devconfig = ahc_pci_read_config(ahc->dev_softc, 863 DEVCONFIG, /*bytes*/4); 864 if ((devconfig & REXTVALID) == 0) 865 ahc->features &= ~AHC_ULTRA; 866 } 867 868 /* See if we have a SEEPROM and perform auto-term */ 869 check_extport(ahc, &sxfrctl1); 870 871 /* 872 * Take the LED out of diagnostic mode 873 */ 874 sblkctl = ahc_inb(ahc, SBLKCTL); 875 ahc_outb(ahc, SBLKCTL, (sblkctl & ~(DIAGLEDEN|DIAGLEDON))); 876 877 if ((ahc->features & AHC_ULTRA2) != 0) { 878 ahc_outb(ahc, DFF_THRSH, RD_DFTHRSH_MAX|WR_DFTHRSH_MAX); 879 } else { 880 ahc_outb(ahc, DSPCISTATUS, DFTHRSH_100); 881 } 882 883 if (ahc->flags & AHC_USEDEFAULTS) { 884 /* 885 * PCI Adapter default setup 886 * Should only be used if the adapter does not have 887 * a SEEPROM. 888 */ 889 /* See if someone else set us up already */ 890 if ((ahc->flags & AHC_NO_BIOS_INIT) == 0 891 && scsiseq != 0) { 892 printk("%s: Using left over BIOS settings\n", 893 ahc_name(ahc)); 894 ahc->flags &= ~AHC_USEDEFAULTS; 895 ahc->flags |= AHC_BIOS_ENABLED; 896 } else { 897 /* 898 * Assume only one connector and always turn 899 * on termination. 900 */ 901 our_id = 0x07; 902 sxfrctl1 = STPWEN; 903 } 904 ahc_outb(ahc, SCSICONF, our_id|ENSPCHK|RESET_SCSI); 905 906 ahc->our_id = our_id; 907 } 908 909 /* 910 * Take a look to see if we have external SRAM. 911 * We currently do not attempt to use SRAM that is 912 * shared among multiple controllers. 913 */ 914 ahc_probe_ext_scbram(ahc); 915 916 /* 917 * Record our termination setting for the 918 * generic initialization routine. 919 */ 920 if ((sxfrctl1 & STPWEN) != 0) 921 ahc->flags |= AHC_TERM_ENB_A; 922 923 /* 924 * Save chip register configuration data for chip resets 925 * that occur during runtime and resume events. 926 */ 927 ahc->bus_softc.pci_softc.devconfig = 928 ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 929 ahc->bus_softc.pci_softc.command = 930 ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/1); 931 ahc->bus_softc.pci_softc.csize_lattime = 932 ahc_pci_read_config(ahc->dev_softc, CSIZE_LATTIME, /*bytes*/1); 933 ahc->bus_softc.pci_softc.dscommand0 = ahc_inb(ahc, DSCOMMAND0); 934 ahc->bus_softc.pci_softc.dspcistatus = ahc_inb(ahc, DSPCISTATUS); 935 if ((ahc->features & AHC_DT) != 0) { 936 u_int sfunct; 937 938 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 939 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 940 ahc->bus_softc.pci_softc.optionmode = ahc_inb(ahc, OPTIONMODE); 941 ahc->bus_softc.pci_softc.targcrccnt = ahc_inw(ahc, TARGCRCCNT); 942 ahc_outb(ahc, SFUNCT, sfunct); 943 ahc->bus_softc.pci_softc.crccontrol1 = 944 ahc_inb(ahc, CRCCONTROL1); 945 } 946 if ((ahc->features & AHC_MULTI_FUNC) != 0) 947 ahc->bus_softc.pci_softc.scbbaddr = ahc_inb(ahc, SCBBADDR); 948 949 if ((ahc->features & AHC_ULTRA2) != 0) 950 ahc->bus_softc.pci_softc.dff_thrsh = ahc_inb(ahc, DFF_THRSH); 951 952 /* Core initialization */ 953 error = ahc_init(ahc); 954 if (error != 0) 955 return (error); 956 ahc->init_level++; 957 958 /* 959 * Allow interrupts now that we are completely setup. 960 */ 961 return ahc_pci_map_int(ahc); 962} 963 964/* 965 * Test for the presence of external sram in an 966 * "unshared" configuration. 967 */ 968static int 969ahc_ext_scbram_present(struct ahc_softc *ahc) 970{ 971 u_int chip; 972 int ramps; 973 int single_user; 974 uint32_t devconfig; 975 976 chip = ahc->chip & AHC_CHIPID_MASK; 977 devconfig = ahc_pci_read_config(ahc->dev_softc, 978 DEVCONFIG, /*bytes*/4); 979 single_user = (devconfig & MPORTMODE) != 0; 980 981 if ((ahc->features & AHC_ULTRA2) != 0) 982 ramps = (ahc_inb(ahc, DSCOMMAND0) & RAMPS) != 0; 983 else if (chip == AHC_AIC7895 || chip == AHC_AIC7895C) 984 /* 985 * External SCBRAM arbitration is flakey 986 * on these chips. Unfortunately this means 987 * we don't use the extra SCB ram space on the 988 * 3940AUW. 989 */ 990 ramps = 0; 991 else if (chip >= AHC_AIC7870) 992 ramps = (devconfig & RAMPSM) != 0; 993 else 994 ramps = 0; 995 996 if (ramps && single_user) 997 return (1); 998 return (0); 999} 1000 1001/* 1002 * Enable external scbram. 1003 */ 1004static void 1005ahc_scbram_config(struct ahc_softc *ahc, int enable, int pcheck, 1006 int fast, int large) 1007{ 1008 uint32_t devconfig; 1009 1010 if (ahc->features & AHC_MULTI_FUNC) { 1011 /* 1012 * Set the SCB Base addr (highest address bit) 1013 * depending on which channel we are. 1014 */ 1015 ahc_outb(ahc, SCBBADDR, ahc_get_pci_function(ahc->dev_softc)); 1016 } 1017 1018 ahc->flags &= ~AHC_LSCBS_ENABLED; 1019 if (large) 1020 ahc->flags |= AHC_LSCBS_ENABLED; 1021 devconfig = ahc_pci_read_config(ahc->dev_softc, DEVCONFIG, /*bytes*/4); 1022 if ((ahc->features & AHC_ULTRA2) != 0) { 1023 u_int dscommand0; 1024 1025 dscommand0 = ahc_inb(ahc, DSCOMMAND0); 1026 if (enable) 1027 dscommand0 &= ~INTSCBRAMSEL; 1028 else 1029 dscommand0 |= INTSCBRAMSEL; 1030 if (large) 1031 dscommand0 &= ~USCBSIZE32; 1032 else 1033 dscommand0 |= USCBSIZE32; 1034 ahc_outb(ahc, DSCOMMAND0, dscommand0); 1035 } else { 1036 if (fast) 1037 devconfig &= ~EXTSCBTIME; 1038 else 1039 devconfig |= EXTSCBTIME; 1040 if (enable) 1041 devconfig &= ~SCBRAMSEL; 1042 else 1043 devconfig |= SCBRAMSEL; 1044 if (large) 1045 devconfig &= ~SCBSIZE32; 1046 else 1047 devconfig |= SCBSIZE32; 1048 } 1049 if (pcheck) 1050 devconfig |= EXTSCBPEN; 1051 else 1052 devconfig &= ~EXTSCBPEN; 1053 1054 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, devconfig, /*bytes*/4); 1055} 1056 1057/* 1058 * Take a look to see if we have external SRAM. 1059 * We currently do not attempt to use SRAM that is 1060 * shared among multiple controllers. 1061 */ 1062static void 1063ahc_probe_ext_scbram(struct ahc_softc *ahc) 1064{ 1065 int num_scbs; 1066 int test_num_scbs; 1067 int enable; 1068 int pcheck; 1069 int fast; 1070 int large; 1071 1072 enable = FALSE; 1073 pcheck = FALSE; 1074 fast = FALSE; 1075 large = FALSE; 1076 num_scbs = 0; 1077 1078 if (ahc_ext_scbram_present(ahc) == 0) 1079 goto done; 1080 1081 /* 1082 * Probe for the best parameters to use. 1083 */ 1084 ahc_scbram_config(ahc, /*enable*/TRUE, pcheck, fast, large); 1085 num_scbs = ahc_probe_scbs(ahc); 1086 if (num_scbs == 0) { 1087 /* The SRAM wasn't really present. */ 1088 goto done; 1089 } 1090 enable = TRUE; 1091 1092 /* 1093 * Clear any outstanding parity error 1094 * and ensure that parity error reporting 1095 * is enabled. 1096 */ 1097 ahc_outb(ahc, SEQCTL, 0); 1098 ahc_outb(ahc, CLRINT, CLRPARERR); 1099 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1100 1101 /* Now see if we can do parity */ 1102 ahc_scbram_config(ahc, enable, /*pcheck*/TRUE, fast, large); 1103 num_scbs = ahc_probe_scbs(ahc); 1104 if ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0 1105 || (ahc_inb(ahc, ERROR) & MPARERR) == 0) 1106 pcheck = TRUE; 1107 1108 /* Clear any resulting parity error */ 1109 ahc_outb(ahc, CLRINT, CLRPARERR); 1110 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1111 1112 /* Now see if we can do fast timing */ 1113 ahc_scbram_config(ahc, enable, pcheck, /*fast*/TRUE, large); 1114 test_num_scbs = ahc_probe_scbs(ahc); 1115 if (test_num_scbs == num_scbs 1116 && ((ahc_inb(ahc, INTSTAT) & BRKADRINT) == 0 1117 || (ahc_inb(ahc, ERROR) & MPARERR) == 0)) 1118 fast = TRUE; 1119 1120 /* 1121 * See if we can use large SCBs and still maintain 1122 * the same overall count of SCBs. 1123 */ 1124 if ((ahc->features & AHC_LARGE_SCBS) != 0) { 1125 ahc_scbram_config(ahc, enable, pcheck, fast, /*large*/TRUE); 1126 test_num_scbs = ahc_probe_scbs(ahc); 1127 if (test_num_scbs >= num_scbs) { 1128 large = TRUE; 1129 num_scbs = test_num_scbs; 1130 if (num_scbs >= 64) { 1131 /* 1132 * We have enough space to move the 1133 * "busy targets table" into SCB space 1134 * and make it qualify all the way to the 1135 * lun level. 1136 */ 1137 ahc->flags |= AHC_SCB_BTT; 1138 } 1139 } 1140 } 1141done: 1142 /* 1143 * Disable parity error reporting until we 1144 * can load instruction ram. 1145 */ 1146 ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS); 1147 /* Clear any latched parity error */ 1148 ahc_outb(ahc, CLRINT, CLRPARERR); 1149 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1150 if (bootverbose && enable) { 1151 printk("%s: External SRAM, %s access%s, %dbytes/SCB\n", 1152 ahc_name(ahc), fast ? "fast" : "slow", 1153 pcheck ? ", parity checking enabled" : "", 1154 large ? 64 : 32); 1155 } 1156 ahc_scbram_config(ahc, enable, pcheck, fast, large); 1157} 1158 1159/* 1160 * Perform some simple tests that should catch situations where 1161 * our registers are invalidly mapped. 1162 */ 1163int 1164ahc_pci_test_register_access(struct ahc_softc *ahc) 1165{ 1166 int error; 1167 u_int status1; 1168 uint32_t cmd; 1169 uint8_t hcntrl; 1170 1171 error = EIO; 1172 1173 /* 1174 * Enable PCI error interrupt status, but suppress NMIs 1175 * generated by SERR raised due to target aborts. 1176 */ 1177 cmd = ahc_pci_read_config(ahc->dev_softc, PCIR_COMMAND, /*bytes*/2); 1178 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, 1179 cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2); 1180 1181 /* 1182 * First a simple test to see if any 1183 * registers can be read. Reading 1184 * HCNTRL has no side effects and has 1185 * at least one bit that is guaranteed to 1186 * be zero so it is a good register to 1187 * use for this test. 1188 */ 1189 hcntrl = ahc_inb(ahc, HCNTRL); 1190 1191 if (hcntrl == 0xFF) 1192 goto fail; 1193 1194 if ((hcntrl & CHIPRST) != 0) { 1195 /* 1196 * The chip has not been initialized since 1197 * PCI/EISA/VLB bus reset. Don't trust 1198 * "left over BIOS data". 1199 */ 1200 ahc->flags |= AHC_NO_BIOS_INIT; 1201 } 1202 1203 /* 1204 * Next create a situation where write combining 1205 * or read prefetching could be initiated by the 1206 * CPU or host bridge. Our device does not support 1207 * either, so look for data corruption and/or flagged 1208 * PCI errors. First pause without causing another 1209 * chip reset. 1210 */ 1211 hcntrl &= ~CHIPRST; 1212 ahc_outb(ahc, HCNTRL, hcntrl|PAUSE); 1213 while (ahc_is_paused(ahc) == 0) 1214 ; 1215 1216 /* Clear any PCI errors that occurred before our driver attached. */ 1217 status1 = ahc_pci_read_config(ahc->dev_softc, 1218 PCIR_STATUS + 1, /*bytes*/1); 1219 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1220 status1, /*bytes*/1); 1221 ahc_outb(ahc, CLRINT, CLRPARERR); 1222 1223 ahc_outb(ahc, SEQCTL, PERRORDIS); 1224 ahc_outb(ahc, SCBPTR, 0); 1225 ahc_outl(ahc, SCB_BASE, 0x5aa555aa); 1226 if (ahc_inl(ahc, SCB_BASE) != 0x5aa555aa) 1227 goto fail; 1228 1229 status1 = ahc_pci_read_config(ahc->dev_softc, 1230 PCIR_STATUS + 1, /*bytes*/1); 1231 if ((status1 & STA) != 0) 1232 goto fail; 1233 1234 error = 0; 1235 1236fail: 1237 /* Silently clear any latched errors. */ 1238 status1 = ahc_pci_read_config(ahc->dev_softc, 1239 PCIR_STATUS + 1, /*bytes*/1); 1240 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1241 status1, /*bytes*/1); 1242 ahc_outb(ahc, CLRINT, CLRPARERR); 1243 ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS); 1244 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2); 1245 return (error); 1246} 1247 1248/* 1249 * Check the external port logic for a serial eeprom 1250 * and termination/cable detection contrls. 1251 */ 1252static void 1253check_extport(struct ahc_softc *ahc, u_int *sxfrctl1) 1254{ 1255 struct seeprom_descriptor sd; 1256 struct seeprom_config *sc; 1257 int have_seeprom; 1258 int have_autoterm; 1259 1260 sd.sd_ahc = ahc; 1261 sd.sd_control_offset = SEECTL; 1262 sd.sd_status_offset = SEECTL; 1263 sd.sd_dataout_offset = SEECTL; 1264 sc = ahc->seep_config; 1265 1266 /* 1267 * For some multi-channel devices, the c46 is simply too 1268 * small to work. For the other controller types, we can 1269 * get our information from either SEEPROM type. Set the 1270 * type to start our probe with accordingly. 1271 */ 1272 if (ahc->flags & AHC_LARGE_SEEPROM) 1273 sd.sd_chip = C56_66; 1274 else 1275 sd.sd_chip = C46; 1276 1277 sd.sd_MS = SEEMS; 1278 sd.sd_RDY = SEERDY; 1279 sd.sd_CS = SEECS; 1280 sd.sd_CK = SEECK; 1281 sd.sd_DO = SEEDO; 1282 sd.sd_DI = SEEDI; 1283 1284 have_seeprom = ahc_acquire_seeprom(ahc, &sd); 1285 if (have_seeprom) { 1286 1287 if (bootverbose) 1288 printk("%s: Reading SEEPROM...", ahc_name(ahc)); 1289 1290 for (;;) { 1291 u_int start_addr; 1292 1293 start_addr = 32 * (ahc->channel - 'A'); 1294 1295 have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc, 1296 start_addr, 1297 sizeof(*sc)/2); 1298 1299 if (have_seeprom) 1300 have_seeprom = ahc_verify_cksum(sc); 1301 1302 if (have_seeprom != 0 || sd.sd_chip == C56_66) { 1303 if (bootverbose) { 1304 if (have_seeprom == 0) 1305 printk ("checksum error\n"); 1306 else 1307 printk ("done.\n"); 1308 } 1309 break; 1310 } 1311 sd.sd_chip = C56_66; 1312 } 1313 ahc_release_seeprom(&sd); 1314 1315 /* Remember the SEEPROM type for later */ 1316 if (sd.sd_chip == C56_66) 1317 ahc->flags |= AHC_LARGE_SEEPROM; 1318 } 1319 1320 if (!have_seeprom) { 1321 /* 1322 * Pull scratch ram settings and treat them as 1323 * if they are the contents of an seeprom if 1324 * the 'ADPT' signature is found in SCB2. 1325 * We manually compose the data as 16bit values 1326 * to avoid endian issues. 1327 */ 1328 ahc_outb(ahc, SCBPTR, 2); 1329 if (ahc_inb(ahc, SCB_BASE) == 'A' 1330 && ahc_inb(ahc, SCB_BASE + 1) == 'D' 1331 && ahc_inb(ahc, SCB_BASE + 2) == 'P' 1332 && ahc_inb(ahc, SCB_BASE + 3) == 'T') { 1333 uint16_t *sc_data; 1334 int i; 1335 1336 sc_data = (uint16_t *)sc; 1337 for (i = 0; i < 32; i++, sc_data++) { 1338 int j; 1339 1340 j = i * 2; 1341 *sc_data = ahc_inb(ahc, SRAM_BASE + j) 1342 | ahc_inb(ahc, SRAM_BASE + j + 1) << 8; 1343 } 1344 have_seeprom = ahc_verify_cksum(sc); 1345 if (have_seeprom) 1346 ahc->flags |= AHC_SCB_CONFIG_USED; 1347 } 1348 /* 1349 * Clear any SCB parity errors in case this data and 1350 * its associated parity was not initialized by the BIOS 1351 */ 1352 ahc_outb(ahc, CLRINT, CLRPARERR); 1353 ahc_outb(ahc, CLRINT, CLRBRKADRINT); 1354 } 1355 1356 if (!have_seeprom) { 1357 if (bootverbose) 1358 printk("%s: No SEEPROM available.\n", ahc_name(ahc)); 1359 ahc->flags |= AHC_USEDEFAULTS; 1360 kfree(ahc->seep_config); 1361 ahc->seep_config = NULL; 1362 sc = NULL; 1363 } else { 1364 ahc_parse_pci_eeprom(ahc, sc); 1365 } 1366 1367 /* 1368 * Cards that have the external logic necessary to talk to 1369 * a SEEPROM, are almost certain to have the remaining logic 1370 * necessary for auto-termination control. This assumption 1371 * hasn't failed yet... 1372 */ 1373 have_autoterm = have_seeprom; 1374 1375 /* 1376 * Some low-cost chips have SEEPROM and auto-term control built 1377 * in, instead of using a GAL. They can tell us directly 1378 * if the termination logic is enabled. 1379 */ 1380 if ((ahc->features & AHC_SPIOCAP) != 0) { 1381 if ((ahc_inb(ahc, SPIOCAP) & SSPIOCPS) == 0) 1382 have_autoterm = FALSE; 1383 } 1384 1385 if (have_autoterm) { 1386 ahc->flags |= AHC_HAS_TERM_LOGIC; 1387 ahc_acquire_seeprom(ahc, &sd); 1388 configure_termination(ahc, &sd, sc->adapter_control, sxfrctl1); 1389 ahc_release_seeprom(&sd); 1390 } else if (have_seeprom) { 1391 *sxfrctl1 &= ~STPWEN; 1392 if ((sc->adapter_control & CFSTERM) != 0) 1393 *sxfrctl1 |= STPWEN; 1394 if (bootverbose) 1395 printk("%s: Low byte termination %sabled\n", 1396 ahc_name(ahc), 1397 (*sxfrctl1 & STPWEN) ? "en" : "dis"); 1398 } 1399} 1400 1401static void 1402ahc_parse_pci_eeprom(struct ahc_softc *ahc, struct seeprom_config *sc) 1403{ 1404 /* 1405 * Put the data we've collected down into SRAM 1406 * where ahc_init will find it. 1407 */ 1408 int i; 1409 int max_targ = sc->max_targets & CFMAXTARG; 1410 u_int scsi_conf; 1411 uint16_t discenable; 1412 uint16_t ultraenb; 1413 1414 discenable = 0; 1415 ultraenb = 0; 1416 if ((sc->adapter_control & CFULTRAEN) != 0) { 1417 /* 1418 * Determine if this adapter has a "newstyle" 1419 * SEEPROM format. 1420 */ 1421 for (i = 0; i < max_targ; i++) { 1422 if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) { 1423 ahc->flags |= AHC_NEWEEPROM_FMT; 1424 break; 1425 } 1426 } 1427 } 1428 1429 for (i = 0; i < max_targ; i++) { 1430 u_int scsirate; 1431 uint16_t target_mask; 1432 1433 target_mask = 0x01 << i; 1434 if (sc->device_flags[i] & CFDISC) 1435 discenable |= target_mask; 1436 if ((ahc->flags & AHC_NEWEEPROM_FMT) != 0) { 1437 if ((sc->device_flags[i] & CFSYNCHISULTRA) != 0) 1438 ultraenb |= target_mask; 1439 } else if ((sc->adapter_control & CFULTRAEN) != 0) { 1440 ultraenb |= target_mask; 1441 } 1442 if ((sc->device_flags[i] & CFXFER) == 0x04 1443 && (ultraenb & target_mask) != 0) { 1444 /* Treat 10MHz as a non-ultra speed */ 1445 sc->device_flags[i] &= ~CFXFER; 1446 ultraenb &= ~target_mask; 1447 } 1448 if ((ahc->features & AHC_ULTRA2) != 0) { 1449 u_int offset; 1450 1451 if (sc->device_flags[i] & CFSYNCH) 1452 offset = MAX_OFFSET_ULTRA2; 1453 else 1454 offset = 0; 1455 ahc_outb(ahc, TARG_OFFSET + i, offset); 1456 1457 /* 1458 * The ultra enable bits contain the 1459 * high bit of the ultra2 sync rate 1460 * field. 1461 */ 1462 scsirate = (sc->device_flags[i] & CFXFER) 1463 | ((ultraenb & target_mask) ? 0x8 : 0x0); 1464 if (sc->device_flags[i] & CFWIDEB) 1465 scsirate |= WIDEXFER; 1466 } else { 1467 scsirate = (sc->device_flags[i] & CFXFER) << 4; 1468 if (sc->device_flags[i] & CFSYNCH) 1469 scsirate |= SOFS; 1470 if (sc->device_flags[i] & CFWIDEB) 1471 scsirate |= WIDEXFER; 1472 } 1473 ahc_outb(ahc, TARG_SCSIRATE + i, scsirate); 1474 } 1475 ahc->our_id = sc->brtime_id & CFSCSIID; 1476 1477 scsi_conf = (ahc->our_id & 0x7); 1478 if (sc->adapter_control & CFSPARITY) 1479 scsi_conf |= ENSPCHK; 1480 if (sc->adapter_control & CFRESETB) 1481 scsi_conf |= RESET_SCSI; 1482 1483 ahc->flags |= (sc->adapter_control & CFBOOTCHAN) >> CFBOOTCHANSHIFT; 1484 1485 if (sc->bios_control & CFEXTEND) 1486 ahc->flags |= AHC_EXTENDED_TRANS_A; 1487 1488 if (sc->bios_control & CFBIOSEN) 1489 ahc->flags |= AHC_BIOS_ENABLED; 1490 if (ahc->features & AHC_ULTRA 1491 && (ahc->flags & AHC_NEWEEPROM_FMT) == 0) { 1492 /* Should we enable Ultra mode? */ 1493 if (!(sc->adapter_control & CFULTRAEN)) 1494 /* Treat us as a non-ultra card */ 1495 ultraenb = 0; 1496 } 1497 1498 if (sc->signature == CFSIGNATURE 1499 || sc->signature == CFSIGNATURE2) { 1500 uint32_t devconfig; 1501 1502 /* Honor the STPWLEVEL settings */ 1503 devconfig = ahc_pci_read_config(ahc->dev_softc, 1504 DEVCONFIG, /*bytes*/4); 1505 devconfig &= ~STPWLEVEL; 1506 if ((sc->bios_control & CFSTPWLEVEL) != 0) 1507 devconfig |= STPWLEVEL; 1508 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, 1509 devconfig, /*bytes*/4); 1510 } 1511 /* Set SCSICONF info */ 1512 ahc_outb(ahc, SCSICONF, scsi_conf); 1513 ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); 1514 ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); 1515 ahc_outb(ahc, ULTRA_ENB, ultraenb & 0xff); 1516 ahc_outb(ahc, ULTRA_ENB + 1, (ultraenb >> 8) & 0xff); 1517} 1518 1519static void 1520configure_termination(struct ahc_softc *ahc, 1521 struct seeprom_descriptor *sd, 1522 u_int adapter_control, 1523 u_int *sxfrctl1) 1524{ 1525 uint8_t brddat; 1526 1527 brddat = 0; 1528 1529 /* 1530 * Update the settings in sxfrctl1 to match the 1531 * termination settings 1532 */ 1533 *sxfrctl1 = 0; 1534 1535 /* 1536 * SEECS must be on for the GALS to latch 1537 * the data properly. Be sure to leave MS 1538 * on or we will release the seeprom. 1539 */ 1540 SEEPROM_OUTB(sd, sd->sd_MS | sd->sd_CS); 1541 if ((adapter_control & CFAUTOTERM) != 0 1542 || (ahc->features & AHC_NEW_TERMCTL) != 0) { 1543 int internal50_present; 1544 int internal68_present; 1545 int externalcable_present; 1546 int eeprom_present; 1547 int enableSEC_low; 1548 int enableSEC_high; 1549 int enablePRI_low; 1550 int enablePRI_high; 1551 int sum; 1552 1553 enableSEC_low = 0; 1554 enableSEC_high = 0; 1555 enablePRI_low = 0; 1556 enablePRI_high = 0; 1557 if ((ahc->features & AHC_NEW_TERMCTL) != 0) { 1558 ahc_new_term_detect(ahc, &enableSEC_low, 1559 &enableSEC_high, 1560 &enablePRI_low, 1561 &enablePRI_high, 1562 &eeprom_present); 1563 if ((adapter_control & CFSEAUTOTERM) == 0) { 1564 if (bootverbose) 1565 printk("%s: Manual SE Termination\n", 1566 ahc_name(ahc)); 1567 enableSEC_low = (adapter_control & CFSELOWTERM); 1568 enableSEC_high = 1569 (adapter_control & CFSEHIGHTERM); 1570 } 1571 if ((adapter_control & CFAUTOTERM) == 0) { 1572 if (bootverbose) 1573 printk("%s: Manual LVD Termination\n", 1574 ahc_name(ahc)); 1575 enablePRI_low = (adapter_control & CFSTERM); 1576 enablePRI_high = (adapter_control & CFWSTERM); 1577 } 1578 /* Make the table calculations below happy */ 1579 internal50_present = 0; 1580 internal68_present = 1; 1581 externalcable_present = 1; 1582 } else if ((ahc->features & AHC_SPIOCAP) != 0) { 1583 aic785X_cable_detect(ahc, &internal50_present, 1584 &externalcable_present, 1585 &eeprom_present); 1586 /* Can never support a wide connector. */ 1587 internal68_present = 0; 1588 } else { 1589 aic787X_cable_detect(ahc, &internal50_present, 1590 &internal68_present, 1591 &externalcable_present, 1592 &eeprom_present); 1593 } 1594 1595 if ((ahc->features & AHC_WIDE) == 0) 1596 internal68_present = 0; 1597 1598 if (bootverbose 1599 && (ahc->features & AHC_ULTRA2) == 0) { 1600 printk("%s: internal 50 cable %s present", 1601 ahc_name(ahc), 1602 internal50_present ? "is":"not"); 1603 1604 if ((ahc->features & AHC_WIDE) != 0) 1605 printk(", internal 68 cable %s present", 1606 internal68_present ? "is":"not"); 1607 printk("\n%s: external cable %s present\n", 1608 ahc_name(ahc), 1609 externalcable_present ? "is":"not"); 1610 } 1611 if (bootverbose) 1612 printk("%s: BIOS eeprom %s present\n", 1613 ahc_name(ahc), eeprom_present ? "is" : "not"); 1614 1615 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) { 1616 /* 1617 * The 50 pin connector is a separate bus, 1618 * so force it to always be terminated. 1619 * In the future, perform current sensing 1620 * to determine if we are in the middle of 1621 * a properly terminated bus. 1622 */ 1623 internal50_present = 0; 1624 } 1625 1626 /* 1627 * Now set the termination based on what 1628 * we found. 1629 * Flash Enable = BRDDAT7 1630 * Secondary High Term Enable = BRDDAT6 1631 * Secondary Low Term Enable = BRDDAT5 (7890) 1632 * Primary High Term Enable = BRDDAT4 (7890) 1633 */ 1634 if ((ahc->features & AHC_ULTRA2) == 0 1635 && (internal50_present != 0) 1636 && (internal68_present != 0) 1637 && (externalcable_present != 0)) { 1638 printk("%s: Illegal cable configuration!!. " 1639 "Only two connectors on the " 1640 "adapter may be used at a " 1641 "time!\n", ahc_name(ahc)); 1642 1643 /* 1644 * Pretend there are no cables in the hope 1645 * that having all of the termination on 1646 * gives us a more stable bus. 1647 */ 1648 internal50_present = 0; 1649 internal68_present = 0; 1650 externalcable_present = 0; 1651 } 1652 1653 if ((ahc->features & AHC_WIDE) != 0 1654 && ((externalcable_present == 0) 1655 || (internal68_present == 0) 1656 || (enableSEC_high != 0))) { 1657 brddat |= BRDDAT6; 1658 if (bootverbose) { 1659 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) 1660 printk("%s: 68 pin termination " 1661 "Enabled\n", ahc_name(ahc)); 1662 else 1663 printk("%s: %sHigh byte termination " 1664 "Enabled\n", ahc_name(ahc), 1665 enableSEC_high ? "Secondary " 1666 : ""); 1667 } 1668 } 1669 1670 sum = internal50_present + internal68_present 1671 + externalcable_present; 1672 if (sum < 2 || (enableSEC_low != 0)) { 1673 if ((ahc->features & AHC_ULTRA2) != 0) 1674 brddat |= BRDDAT5; 1675 else 1676 *sxfrctl1 |= STPWEN; 1677 if (bootverbose) { 1678 if ((ahc->flags & AHC_INT50_SPEEDFLEX) != 0) 1679 printk("%s: 50 pin termination " 1680 "Enabled\n", ahc_name(ahc)); 1681 else 1682 printk("%s: %sLow byte termination " 1683 "Enabled\n", ahc_name(ahc), 1684 enableSEC_low ? "Secondary " 1685 : ""); 1686 } 1687 } 1688 1689 if (enablePRI_low != 0) { 1690 *sxfrctl1 |= STPWEN; 1691 if (bootverbose) 1692 printk("%s: Primary Low Byte termination " 1693 "Enabled\n", ahc_name(ahc)); 1694 } 1695 1696 /* 1697 * Setup STPWEN before setting up the rest of 1698 * the termination per the tech note on the U160 cards. 1699 */ 1700 ahc_outb(ahc, SXFRCTL1, *sxfrctl1); 1701 1702 if (enablePRI_high != 0) { 1703 brddat |= BRDDAT4; 1704 if (bootverbose) 1705 printk("%s: Primary High Byte " 1706 "termination Enabled\n", 1707 ahc_name(ahc)); 1708 } 1709 1710 write_brdctl(ahc, brddat); 1711 1712 } else { 1713 if ((adapter_control & CFSTERM) != 0) { 1714 *sxfrctl1 |= STPWEN; 1715 1716 if (bootverbose) 1717 printk("%s: %sLow byte termination Enabled\n", 1718 ahc_name(ahc), 1719 (ahc->features & AHC_ULTRA2) ? "Primary " 1720 : ""); 1721 } 1722 1723 if ((adapter_control & CFWSTERM) != 0 1724 && (ahc->features & AHC_WIDE) != 0) { 1725 brddat |= BRDDAT6; 1726 if (bootverbose) 1727 printk("%s: %sHigh byte termination Enabled\n", 1728 ahc_name(ahc), 1729 (ahc->features & AHC_ULTRA2) 1730 ? "Secondary " : ""); 1731 } 1732 1733 /* 1734 * Setup STPWEN before setting up the rest of 1735 * the termination per the tech note on the U160 cards. 1736 */ 1737 ahc_outb(ahc, SXFRCTL1, *sxfrctl1); 1738 1739 if ((ahc->features & AHC_WIDE) != 0) 1740 write_brdctl(ahc, brddat); 1741 } 1742 SEEPROM_OUTB(sd, sd->sd_MS); /* Clear CS */ 1743} 1744 1745static void 1746ahc_new_term_detect(struct ahc_softc *ahc, int *enableSEC_low, 1747 int *enableSEC_high, int *enablePRI_low, 1748 int *enablePRI_high, int *eeprom_present) 1749{ 1750 uint8_t brdctl; 1751 1752 /* 1753 * BRDDAT7 = Eeprom 1754 * BRDDAT6 = Enable Secondary High Byte termination 1755 * BRDDAT5 = Enable Secondary Low Byte termination 1756 * BRDDAT4 = Enable Primary high byte termination 1757 * BRDDAT3 = Enable Primary low byte termination 1758 */ 1759 brdctl = read_brdctl(ahc); 1760 *eeprom_present = brdctl & BRDDAT7; 1761 *enableSEC_high = (brdctl & BRDDAT6); 1762 *enableSEC_low = (brdctl & BRDDAT5); 1763 *enablePRI_high = (brdctl & BRDDAT4); 1764 *enablePRI_low = (brdctl & BRDDAT3); 1765} 1766 1767static void 1768aic787X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 1769 int *internal68_present, int *externalcable_present, 1770 int *eeprom_present) 1771{ 1772 uint8_t brdctl; 1773 1774 /* 1775 * First read the status of our cables. 1776 * Set the rom bank to 0 since the 1777 * bank setting serves as a multiplexor 1778 * for the cable detection logic. 1779 * BRDDAT5 controls the bank switch. 1780 */ 1781 write_brdctl(ahc, 0); 1782 1783 /* 1784 * Now read the state of the internal 1785 * connectors. BRDDAT6 is INT50 and 1786 * BRDDAT7 is INT68. 1787 */ 1788 brdctl = read_brdctl(ahc); 1789 *internal50_present = (brdctl & BRDDAT6) ? 0 : 1; 1790 *internal68_present = (brdctl & BRDDAT7) ? 0 : 1; 1791 1792 /* 1793 * Set the rom bank to 1 and determine 1794 * the other signals. 1795 */ 1796 write_brdctl(ahc, BRDDAT5); 1797 1798 /* 1799 * Now read the state of the external 1800 * connectors. BRDDAT6 is EXT68 and 1801 * BRDDAT7 is EPROMPS. 1802 */ 1803 brdctl = read_brdctl(ahc); 1804 *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1; 1805 *eeprom_present = (brdctl & BRDDAT7) ? 1 : 0; 1806} 1807 1808static void 1809aic785X_cable_detect(struct ahc_softc *ahc, int *internal50_present, 1810 int *externalcable_present, int *eeprom_present) 1811{ 1812 uint8_t brdctl; 1813 uint8_t spiocap; 1814 1815 spiocap = ahc_inb(ahc, SPIOCAP); 1816 spiocap &= ~SOFTCMDEN; 1817 spiocap |= EXT_BRDCTL; 1818 ahc_outb(ahc, SPIOCAP, spiocap); 1819 ahc_outb(ahc, BRDCTL, BRDRW|BRDCS); 1820 ahc_flush_device_writes(ahc); 1821 ahc_delay(500); 1822 ahc_outb(ahc, BRDCTL, 0); 1823 ahc_flush_device_writes(ahc); 1824 ahc_delay(500); 1825 brdctl = ahc_inb(ahc, BRDCTL); 1826 *internal50_present = (brdctl & BRDDAT5) ? 0 : 1; 1827 *externalcable_present = (brdctl & BRDDAT6) ? 0 : 1; 1828 *eeprom_present = (ahc_inb(ahc, SPIOCAP) & EEPROM) ? 1 : 0; 1829} 1830 1831int 1832ahc_acquire_seeprom(struct ahc_softc *ahc, struct seeprom_descriptor *sd) 1833{ 1834 int wait; 1835 1836 if ((ahc->features & AHC_SPIOCAP) != 0 1837 && (ahc_inb(ahc, SPIOCAP) & SEEPROM) == 0) 1838 return (0); 1839 1840 /* 1841 * Request access of the memory port. When access is 1842 * granted, SEERDY will go high. We use a 1 second 1843 * timeout which should be near 1 second more than 1844 * is needed. Reason: after the chip reset, there 1845 * should be no contention. 1846 */ 1847 SEEPROM_OUTB(sd, sd->sd_MS); 1848 wait = 1000; /* 1 second timeout in msec */ 1849 while (--wait && ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0)) { 1850 ahc_delay(1000); /* delay 1 msec */ 1851 } 1852 if ((SEEPROM_STATUS_INB(sd) & sd->sd_RDY) == 0) { 1853 SEEPROM_OUTB(sd, 0); 1854 return (0); 1855 } 1856 return(1); 1857} 1858 1859void 1860ahc_release_seeprom(struct seeprom_descriptor *sd) 1861{ 1862 /* Release access to the memory port and the serial EEPROM. */ 1863 SEEPROM_OUTB(sd, 0); 1864} 1865 1866static void 1867write_brdctl(struct ahc_softc *ahc, uint8_t value) 1868{ 1869 uint8_t brdctl; 1870 1871 if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { 1872 brdctl = BRDSTB; 1873 if (ahc->channel == 'B') 1874 brdctl |= BRDCS; 1875 } else if ((ahc->features & AHC_ULTRA2) != 0) { 1876 brdctl = 0; 1877 } else { 1878 brdctl = BRDSTB|BRDCS; 1879 } 1880 ahc_outb(ahc, BRDCTL, brdctl); 1881 ahc_flush_device_writes(ahc); 1882 brdctl |= value; 1883 ahc_outb(ahc, BRDCTL, brdctl); 1884 ahc_flush_device_writes(ahc); 1885 if ((ahc->features & AHC_ULTRA2) != 0) 1886 brdctl |= BRDSTB_ULTRA2; 1887 else 1888 brdctl &= ~BRDSTB; 1889 ahc_outb(ahc, BRDCTL, brdctl); 1890 ahc_flush_device_writes(ahc); 1891 if ((ahc->features & AHC_ULTRA2) != 0) 1892 brdctl = 0; 1893 else 1894 brdctl &= ~BRDCS; 1895 ahc_outb(ahc, BRDCTL, brdctl); 1896} 1897 1898static uint8_t 1899read_brdctl(struct ahc_softc *ahc) 1900{ 1901 uint8_t brdctl; 1902 uint8_t value; 1903 1904 if ((ahc->chip & AHC_CHIPID_MASK) == AHC_AIC7895) { 1905 brdctl = BRDRW; 1906 if (ahc->channel == 'B') 1907 brdctl |= BRDCS; 1908 } else if ((ahc->features & AHC_ULTRA2) != 0) { 1909 brdctl = BRDRW_ULTRA2; 1910 } else { 1911 brdctl = BRDRW|BRDCS; 1912 } 1913 ahc_outb(ahc, BRDCTL, brdctl); 1914 ahc_flush_device_writes(ahc); 1915 value = ahc_inb(ahc, BRDCTL); 1916 ahc_outb(ahc, BRDCTL, 0); 1917 return (value); 1918} 1919 1920static void 1921ahc_pci_intr(struct ahc_softc *ahc) 1922{ 1923 u_int error; 1924 u_int status1; 1925 1926 error = ahc_inb(ahc, ERROR); 1927 if ((error & PCIERRSTAT) == 0) 1928 return; 1929 1930 status1 = ahc_pci_read_config(ahc->dev_softc, 1931 PCIR_STATUS + 1, /*bytes*/1); 1932 1933 printk("%s: PCI error Interrupt at seqaddr = 0x%x\n", 1934 ahc_name(ahc), 1935 ahc_inb(ahc, SEQADDR0) | (ahc_inb(ahc, SEQADDR1) << 8)); 1936 1937 if (status1 & DPE) { 1938 ahc->pci_target_perr_count++; 1939 printk("%s: Data Parity Error Detected during address " 1940 "or write data phase\n", ahc_name(ahc)); 1941 } 1942 if (status1 & SSE) { 1943 printk("%s: Signal System Error Detected\n", ahc_name(ahc)); 1944 } 1945 if (status1 & RMA) { 1946 printk("%s: Received a Master Abort\n", ahc_name(ahc)); 1947 } 1948 if (status1 & RTA) { 1949 printk("%s: Received a Target Abort\n", ahc_name(ahc)); 1950 } 1951 if (status1 & STA) { 1952 printk("%s: Signaled a Target Abort\n", ahc_name(ahc)); 1953 } 1954 if (status1 & DPR) { 1955 printk("%s: Data Parity Error has been reported via PERR#\n", 1956 ahc_name(ahc)); 1957 } 1958 1959 /* Clear latched errors. */ 1960 ahc_pci_write_config(ahc->dev_softc, PCIR_STATUS + 1, 1961 status1, /*bytes*/1); 1962 1963 if ((status1 & (DPE|SSE|RMA|RTA|STA|DPR)) == 0) { 1964 printk("%s: Latched PCIERR interrupt with " 1965 "no status bits set\n", ahc_name(ahc)); 1966 } else { 1967 ahc_outb(ahc, CLRINT, CLRPARERR); 1968 } 1969 1970 if (ahc->pci_target_perr_count > AHC_PCI_TARGET_PERR_THRESH) { 1971 printk( 1972"%s: WARNING WARNING WARNING WARNING\n" 1973"%s: Too many PCI parity errors observed as a target.\n" 1974"%s: Some device on this bus is generating bad parity.\n" 1975"%s: This is an error *observed by*, not *generated by*, this controller.\n" 1976"%s: PCI parity error checking has been disabled.\n" 1977"%s: WARNING WARNING WARNING WARNING\n", 1978 ahc_name(ahc), ahc_name(ahc), ahc_name(ahc), 1979 ahc_name(ahc), ahc_name(ahc), ahc_name(ahc)); 1980 ahc->seqctl |= FAILDIS; 1981 ahc_outb(ahc, SEQCTL, ahc->seqctl); 1982 } 1983 ahc_unpause(ahc); 1984} 1985 1986static int 1987ahc_pci_chip_init(struct ahc_softc *ahc) 1988{ 1989 ahc_outb(ahc, DSCOMMAND0, ahc->bus_softc.pci_softc.dscommand0); 1990 ahc_outb(ahc, DSPCISTATUS, ahc->bus_softc.pci_softc.dspcistatus); 1991 if ((ahc->features & AHC_DT) != 0) { 1992 u_int sfunct; 1993 1994 sfunct = ahc_inb(ahc, SFUNCT) & ~ALT_MODE; 1995 ahc_outb(ahc, SFUNCT, sfunct | ALT_MODE); 1996 ahc_outb(ahc, OPTIONMODE, ahc->bus_softc.pci_softc.optionmode); 1997 ahc_outw(ahc, TARGCRCCNT, ahc->bus_softc.pci_softc.targcrccnt); 1998 ahc_outb(ahc, SFUNCT, sfunct); 1999 ahc_outb(ahc, CRCCONTROL1, 2000 ahc->bus_softc.pci_softc.crccontrol1); 2001 } 2002 if ((ahc->features & AHC_MULTI_FUNC) != 0) 2003 ahc_outb(ahc, SCBBADDR, ahc->bus_softc.pci_softc.scbbaddr); 2004 2005 if ((ahc->features & AHC_ULTRA2) != 0) 2006 ahc_outb(ahc, DFF_THRSH, ahc->bus_softc.pci_softc.dff_thrsh); 2007 2008 return (ahc_chip_init(ahc)); 2009} 2010 2011void __maybe_unused 2012ahc_pci_resume(struct ahc_softc *ahc) 2013{ 2014 /* 2015 * We assume that the OS has restored our register 2016 * mappings, etc. Just update the config space registers 2017 * that the OS doesn't know about and rely on our chip 2018 * reset handler to handle the rest. 2019 */ 2020 ahc_pci_write_config(ahc->dev_softc, DEVCONFIG, 2021 ahc->bus_softc.pci_softc.devconfig, /*bytes*/4); 2022 ahc_pci_write_config(ahc->dev_softc, PCIR_COMMAND, 2023 ahc->bus_softc.pci_softc.command, /*bytes*/1); 2024 ahc_pci_write_config(ahc->dev_softc, CSIZE_LATTIME, 2025 ahc->bus_softc.pci_softc.csize_lattime, /*bytes*/1); 2026 if ((ahc->flags & AHC_HAS_TERM_LOGIC) != 0) { 2027 struct seeprom_descriptor sd; 2028 u_int sxfrctl1; 2029 2030 sd.sd_ahc = ahc; 2031 sd.sd_control_offset = SEECTL; 2032 sd.sd_status_offset = SEECTL; 2033 sd.sd_dataout_offset = SEECTL; 2034 2035 ahc_acquire_seeprom(ahc, &sd); 2036 configure_termination(ahc, &sd, 2037 ahc->seep_config->adapter_control, 2038 &sxfrctl1); 2039 ahc_release_seeprom(&sd); 2040 } 2041} 2042 2043static int 2044ahc_aic785X_setup(struct ahc_softc *ahc) 2045{ 2046 ahc_dev_softc_t pci; 2047 uint8_t rev; 2048 2049 pci = ahc->dev_softc; 2050 ahc->channel = 'A'; 2051 ahc->chip = AHC_AIC7850; 2052 ahc->features = AHC_AIC7850_FE; 2053 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2054 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2055 if (rev >= 1) 2056 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2057 ahc->instruction_ram_size = 512; 2058 return (0); 2059} 2060 2061static int 2062ahc_aic7860_setup(struct ahc_softc *ahc) 2063{ 2064 ahc_dev_softc_t pci; 2065 uint8_t rev; 2066 2067 pci = ahc->dev_softc; 2068 ahc->channel = 'A'; 2069 ahc->chip = AHC_AIC7860; 2070 ahc->features = AHC_AIC7860_FE; 2071 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2072 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2073 if (rev >= 1) 2074 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2075 ahc->instruction_ram_size = 512; 2076 return (0); 2077} 2078 2079static int 2080ahc_apa1480_setup(struct ahc_softc *ahc) 2081{ 2082 int error; 2083 2084 error = ahc_aic7860_setup(ahc); 2085 if (error != 0) 2086 return (error); 2087 ahc->features |= AHC_REMOVABLE; 2088 return (0); 2089} 2090 2091static int 2092ahc_aic7870_setup(struct ahc_softc *ahc) 2093{ 2094 2095 ahc->channel = 'A'; 2096 ahc->chip = AHC_AIC7870; 2097 ahc->features = AHC_AIC7870_FE; 2098 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2099 ahc->instruction_ram_size = 512; 2100 return (0); 2101} 2102 2103static int 2104ahc_aic7870h_setup(struct ahc_softc *ahc) 2105{ 2106 int error = ahc_aic7870_setup(ahc); 2107 2108 ahc->features |= AHC_HVD; 2109 2110 return error; 2111} 2112 2113static int 2114ahc_aha394X_setup(struct ahc_softc *ahc) 2115{ 2116 int error; 2117 2118 error = ahc_aic7870_setup(ahc); 2119 if (error == 0) 2120 error = ahc_aha394XX_setup(ahc); 2121 return (error); 2122} 2123 2124static int 2125ahc_aha394Xh_setup(struct ahc_softc *ahc) 2126{ 2127 int error = ahc_aha394X_setup(ahc); 2128 2129 ahc->features |= AHC_HVD; 2130 2131 return error; 2132} 2133 2134static int 2135ahc_aha398X_setup(struct ahc_softc *ahc) 2136{ 2137 int error; 2138 2139 error = ahc_aic7870_setup(ahc); 2140 if (error == 0) 2141 error = ahc_aha398XX_setup(ahc); 2142 return (error); 2143} 2144 2145static int 2146ahc_aha494X_setup(struct ahc_softc *ahc) 2147{ 2148 int error; 2149 2150 error = ahc_aic7870_setup(ahc); 2151 if (error == 0) 2152 error = ahc_aha494XX_setup(ahc); 2153 return (error); 2154} 2155 2156static int 2157ahc_aha494Xh_setup(struct ahc_softc *ahc) 2158{ 2159 int error = ahc_aha494X_setup(ahc); 2160 2161 ahc->features |= AHC_HVD; 2162 2163 return error; 2164} 2165 2166static int 2167ahc_aic7880_setup(struct ahc_softc *ahc) 2168{ 2169 ahc_dev_softc_t pci; 2170 uint8_t rev; 2171 2172 pci = ahc->dev_softc; 2173 ahc->channel = 'A'; 2174 ahc->chip = AHC_AIC7880; 2175 ahc->features = AHC_AIC7880_FE; 2176 ahc->bugs |= AHC_TMODE_WIDEODD_BUG; 2177 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2178 if (rev >= 1) { 2179 ahc->bugs |= AHC_PCI_2_1_RETRY_BUG; 2180 } else { 2181 ahc->bugs |= AHC_CACHETHEN_BUG|AHC_PCI_MWI_BUG; 2182 } 2183 ahc->instruction_ram_size = 512; 2184 return (0); 2185} 2186 2187static int 2188ahc_aic7880h_setup(struct ahc_softc *ahc) 2189{ 2190 int error = ahc_aic7880_setup(ahc); 2191 2192 ahc->features |= AHC_HVD; 2193 2194 return error; 2195} 2196 2197 2198static int 2199ahc_aha2940Pro_setup(struct ahc_softc *ahc) 2200{ 2201 2202 ahc->flags |= AHC_INT50_SPEEDFLEX; 2203 return (ahc_aic7880_setup(ahc)); 2204} 2205 2206static int 2207ahc_aha394XU_setup(struct ahc_softc *ahc) 2208{ 2209 int error; 2210 2211 error = ahc_aic7880_setup(ahc); 2212 if (error == 0) 2213 error = ahc_aha394XX_setup(ahc); 2214 return (error); 2215} 2216 2217static int 2218ahc_aha394XUh_setup(struct ahc_softc *ahc) 2219{ 2220 int error = ahc_aha394XU_setup(ahc); 2221 2222 ahc->features |= AHC_HVD; 2223 2224 return error; 2225} 2226 2227static int 2228ahc_aha398XU_setup(struct ahc_softc *ahc) 2229{ 2230 int error; 2231 2232 error = ahc_aic7880_setup(ahc); 2233 if (error == 0) 2234 error = ahc_aha398XX_setup(ahc); 2235 return (error); 2236} 2237 2238static int 2239ahc_aic7890_setup(struct ahc_softc *ahc) 2240{ 2241 ahc_dev_softc_t pci; 2242 uint8_t rev; 2243 2244 pci = ahc->dev_softc; 2245 ahc->channel = 'A'; 2246 ahc->chip = AHC_AIC7890; 2247 ahc->features = AHC_AIC7890_FE; 2248 ahc->flags |= AHC_NEWEEPROM_FMT; 2249 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2250 if (rev == 0) 2251 ahc->bugs |= AHC_AUTOFLUSH_BUG|AHC_CACHETHEN_BUG; 2252 ahc->instruction_ram_size = 768; 2253 return (0); 2254} 2255 2256static int 2257ahc_aic7892_setup(struct ahc_softc *ahc) 2258{ 2259 2260 ahc->channel = 'A'; 2261 ahc->chip = AHC_AIC7892; 2262 ahc->features = AHC_AIC7892_FE; 2263 ahc->flags |= AHC_NEWEEPROM_FMT; 2264 ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG; 2265 ahc->instruction_ram_size = 1024; 2266 return (0); 2267} 2268 2269static int 2270ahc_aic7895_setup(struct ahc_softc *ahc) 2271{ 2272 ahc_dev_softc_t pci; 2273 uint8_t rev; 2274 2275 pci = ahc->dev_softc; 2276 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2277 /* 2278 * The 'C' revision of the aic7895 has a few additional features. 2279 */ 2280 rev = ahc_pci_read_config(pci, PCIR_REVID, /*bytes*/1); 2281 if (rev >= 4) { 2282 ahc->chip = AHC_AIC7895C; 2283 ahc->features = AHC_AIC7895C_FE; 2284 } else { 2285 u_int command; 2286 2287 ahc->chip = AHC_AIC7895; 2288 ahc->features = AHC_AIC7895_FE; 2289 2290 /* 2291 * The BIOS disables the use of MWI transactions 2292 * since it does not have the MWI bug work around 2293 * we have. Disabling MWI reduces performance, so 2294 * turn it on again. 2295 */ 2296 command = ahc_pci_read_config(pci, PCIR_COMMAND, /*bytes*/1); 2297 command |= PCIM_CMD_MWRICEN; 2298 ahc_pci_write_config(pci, PCIR_COMMAND, command, /*bytes*/1); 2299 ahc->bugs |= AHC_PCI_MWI_BUG; 2300 } 2301 /* 2302 * XXX Does CACHETHEN really not work??? What about PCI retry? 2303 * on C level chips. Need to test, but for now, play it safe. 2304 */ 2305 ahc->bugs |= AHC_TMODE_WIDEODD_BUG|AHC_PCI_2_1_RETRY_BUG 2306 | AHC_CACHETHEN_BUG; 2307 2308#if 0 2309 uint32_t devconfig; 2310 2311 /* 2312 * Cachesize must also be zero due to stray DAC 2313 * problem when sitting behind some bridges. 2314 */ 2315 ahc_pci_write_config(pci, CSIZE_LATTIME, 0, /*bytes*/1); 2316 devconfig = ahc_pci_read_config(pci, DEVCONFIG, /*bytes*/1); 2317 devconfig |= MRDCEN; 2318 ahc_pci_write_config(pci, DEVCONFIG, devconfig, /*bytes*/1); 2319#endif 2320 ahc->flags |= AHC_NEWEEPROM_FMT; 2321 ahc->instruction_ram_size = 512; 2322 return (0); 2323} 2324 2325static int 2326ahc_aic7895h_setup(struct ahc_softc *ahc) 2327{ 2328 int error = ahc_aic7895_setup(ahc); 2329 2330 ahc->features |= AHC_HVD; 2331 2332 return error; 2333} 2334 2335static int 2336ahc_aic7896_setup(struct ahc_softc *ahc) 2337{ 2338 ahc_dev_softc_t pci; 2339 2340 pci = ahc->dev_softc; 2341 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2342 ahc->chip = AHC_AIC7896; 2343 ahc->features = AHC_AIC7896_FE; 2344 ahc->flags |= AHC_NEWEEPROM_FMT; 2345 ahc->bugs |= AHC_CACHETHEN_DIS_BUG; 2346 ahc->instruction_ram_size = 768; 2347 return (0); 2348} 2349 2350static int 2351ahc_aic7899_setup(struct ahc_softc *ahc) 2352{ 2353 ahc_dev_softc_t pci; 2354 2355 pci = ahc->dev_softc; 2356 ahc->channel = ahc_get_pci_function(pci) == 1 ? 'B' : 'A'; 2357 ahc->chip = AHC_AIC7899; 2358 ahc->features = AHC_AIC7899_FE; 2359 ahc->flags |= AHC_NEWEEPROM_FMT; 2360 ahc->bugs |= AHC_SCBCHAN_UPLOAD_BUG; 2361 ahc->instruction_ram_size = 1024; 2362 return (0); 2363} 2364 2365static int 2366ahc_aha29160C_setup(struct ahc_softc *ahc) 2367{ 2368 int error; 2369 2370 error = ahc_aic7899_setup(ahc); 2371 if (error != 0) 2372 return (error); 2373 ahc->features |= AHC_REMOVABLE; 2374 return (0); 2375} 2376 2377static int 2378ahc_raid_setup(struct ahc_softc *ahc) 2379{ 2380 printk("RAID functionality unsupported\n"); 2381 return (ENXIO); 2382} 2383 2384static int 2385ahc_aha394XX_setup(struct ahc_softc *ahc) 2386{ 2387 ahc_dev_softc_t pci; 2388 2389 pci = ahc->dev_softc; 2390 switch (ahc_get_pci_slot(pci)) { 2391 case AHC_394X_SLOT_CHANNEL_A: 2392 ahc->channel = 'A'; 2393 break; 2394 case AHC_394X_SLOT_CHANNEL_B: 2395 ahc->channel = 'B'; 2396 break; 2397 default: 2398 printk("adapter at unexpected slot %d\n" 2399 "unable to map to a channel\n", 2400 ahc_get_pci_slot(pci)); 2401 ahc->channel = 'A'; 2402 } 2403 return (0); 2404} 2405 2406static int 2407ahc_aha398XX_setup(struct ahc_softc *ahc) 2408{ 2409 ahc_dev_softc_t pci; 2410 2411 pci = ahc->dev_softc; 2412 switch (ahc_get_pci_slot(pci)) { 2413 case AHC_398X_SLOT_CHANNEL_A: 2414 ahc->channel = 'A'; 2415 break; 2416 case AHC_398X_SLOT_CHANNEL_B: 2417 ahc->channel = 'B'; 2418 break; 2419 case AHC_398X_SLOT_CHANNEL_C: 2420 ahc->channel = 'C'; 2421 break; 2422 default: 2423 printk("adapter at unexpected slot %d\n" 2424 "unable to map to a channel\n", 2425 ahc_get_pci_slot(pci)); 2426 ahc->channel = 'A'; 2427 break; 2428 } 2429 ahc->flags |= AHC_LARGE_SEEPROM; 2430 return (0); 2431} 2432 2433static int 2434ahc_aha494XX_setup(struct ahc_softc *ahc) 2435{ 2436 ahc_dev_softc_t pci; 2437 2438 pci = ahc->dev_softc; 2439 switch (ahc_get_pci_slot(pci)) { 2440 case AHC_494X_SLOT_CHANNEL_A: 2441 ahc->channel = 'A'; 2442 break; 2443 case AHC_494X_SLOT_CHANNEL_B: 2444 ahc->channel = 'B'; 2445 break; 2446 case AHC_494X_SLOT_CHANNEL_C: 2447 ahc->channel = 'C'; 2448 break; 2449 case AHC_494X_SLOT_CHANNEL_D: 2450 ahc->channel = 'D'; 2451 break; 2452 default: 2453 printk("adapter at unexpected slot %d\n" 2454 "unable to map to a channel\n", 2455 ahc_get_pci_slot(pci)); 2456 ahc->channel = 'A'; 2457 } 2458 ahc->flags |= AHC_LARGE_SEEPROM; 2459 return (0); 2460}
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