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[MIPS] vr41xx: Removed old v2.4 VRC4173 driver
[linux-2.6/linux-mips/linux-dm7025.git] / drivers / scsi / aic7xxx / aic79xx_pci.c
blob14850f31aafa53cdafd3817936a7d6b22906613a
1 /*
2 * Product specific probe and attach routines for:
3 * aic7901 and aic7902 SCSI controllers
4 *
5 * Copyright (c) 1994-2001 Justin T. Gibbs.
6 * Copyright (c) 2000-2002 Adaptec Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
16 * substantially similar to the "NO WARRANTY" disclaimer below
17 * ("Disclaimer") and any redistribution must be conditioned upon
18 * including a substantially similar Disclaimer requirement for further
19 * binary redistribution.
20 * 3. Neither the names of the above-listed copyright holders nor the names
21 * of any contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * Alternatively, this software may be distributed under the terms of the
25 * GNU General Public License ("GPL") version 2 as published by the Free
26 * Software Foundation.
27 *
28 * NO WARRANTY
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
38 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGES.
40 *
41 * $Id: //depot/aic7xxx/aic7xxx/aic79xx_pci.c#92 $
42 */
43
44 #ifdef __linux__
45 #include "aic79xx_osm.h"
46 #include "aic79xx_inline.h"
47 #else
48 #include <dev/aic7xxx/aic79xx_osm.h>
49 #include <dev/aic7xxx/aic79xx_inline.h>
50 #endif
51
52 #include "aic79xx_pci.h"
53
54 static __inline uint64_t
55 ahd_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
56 {
57 uint64_t id;
58
59 id = subvendor
60 | (subdevice << 16)
61 | ((uint64_t)vendor << 32)
62 | ((uint64_t)device << 48);
63
64 return (id);
65 }
66
67 #define ID_AIC7902_PCI_REV_A4 0x3
68 #define ID_AIC7902_PCI_REV_B0 0x10
69 #define SUBID_HP 0x0E11
70
71 #define DEVID_9005_HOSTRAID(id) ((id) & 0x80)
72
73 #define DEVID_9005_TYPE(id) ((id) & 0xF)
74 #define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */
75 #define DEVID_9005_TYPE_HBA_2EXT 0x1 /* 2 External Ports */
76 #define DEVID_9005_TYPE_IROC 0x8 /* Raid(0,1,10) Card */
77 #define DEVID_9005_TYPE_MB 0xF /* On Motherboard */
78
79 #define DEVID_9005_MFUNC(id) ((id) & 0x10)
80
81 #define DEVID_9005_PACKETIZED(id) ((id) & 0x8000)
82
83 #define SUBID_9005_TYPE(id) ((id) & 0xF)
84 #define SUBID_9005_TYPE_HBA 0x0 /* Standard Card */
85 #define SUBID_9005_TYPE_MB 0xF /* On Motherboard */
86
87 #define SUBID_9005_AUTOTERM(id) (((id) & 0x10) == 0)
88
89 #define SUBID_9005_LEGACYCONN_FUNC(id) ((id) & 0x20)
90
91 #define SUBID_9005_SEEPTYPE(id) ((id) & 0x0C0) >> 6)
92 #define SUBID_9005_SEEPTYPE_NONE 0x0
93 #define SUBID_9005_SEEPTYPE_4K 0x1
94
95 static ahd_device_setup_t ahd_aic7901_setup;
96 static ahd_device_setup_t ahd_aic7901A_setup;
97 static ahd_device_setup_t ahd_aic7902_setup;
98 static ahd_device_setup_t ahd_aic790X_setup;
99
100 struct ahd_pci_identity ahd_pci_ident_table [] =
101 {
102 /* aic7901 based controllers */
103 {
104 ID_AHA_29320A,
105 ID_ALL_MASK,
106 "Adaptec 29320A Ultra320 SCSI adapter",
107 ahd_aic7901_setup
108 },
109 {
110 ID_AHA_29320ALP,
111 ID_ALL_MASK,
112 "Adaptec 29320ALP Ultra320 SCSI adapter",
113 ahd_aic7901_setup
114 },
115 /* aic7901A based controllers */
116 {
117 ID_AHA_29320LP,
118 ID_ALL_MASK,
119 "Adaptec 29320LP Ultra320 SCSI adapter",
120 ahd_aic7901A_setup
121 },
122 /* aic7902 based controllers */
123 {
124 ID_AHA_29320,
125 ID_ALL_MASK,
126 "Adaptec 29320 Ultra320 SCSI adapter",
127 ahd_aic7902_setup
128 },
129 {
130 ID_AHA_29320B,
131 ID_ALL_MASK,
132 "Adaptec 29320B Ultra320 SCSI adapter",
133 ahd_aic7902_setup
134 },
135 {
136 ID_AHA_39320,
137 ID_ALL_MASK,
138 "Adaptec 39320 Ultra320 SCSI adapter",
139 ahd_aic7902_setup
140 },
141 {
142 ID_AHA_39320_B,
143 ID_ALL_MASK,
144 "Adaptec 39320 Ultra320 SCSI adapter",
145 ahd_aic7902_setup
146 },
147 {
148 ID_AHA_39320_B_DELL,
149 ID_ALL_MASK,
150 "Adaptec (Dell OEM) 39320 Ultra320 SCSI adapter",
151 ahd_aic7902_setup
152 },
153 {
154 ID_AHA_39320A,
155 ID_ALL_MASK,
156 "Adaptec 39320A Ultra320 SCSI adapter",
157 ahd_aic7902_setup
158 },
159 {
160 ID_AHA_39320D,
161 ID_ALL_MASK,
162 "Adaptec 39320D Ultra320 SCSI adapter",
163 ahd_aic7902_setup
164 },
165 {
166 ID_AHA_39320D_HP,
167 ID_ALL_MASK,
168 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
169 ahd_aic7902_setup
170 },
171 {
172 ID_AHA_39320D_B,
173 ID_ALL_MASK,
174 "Adaptec 39320D Ultra320 SCSI adapter",
175 ahd_aic7902_setup
176 },
177 {
178 ID_AHA_39320D_B_HP,
179 ID_ALL_MASK,
180 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
181 ahd_aic7902_setup
182 },
183 /* Generic chip probes for devices we don't know 'exactly' */
184 {
185 ID_AIC7901 & ID_9005_GENERIC_MASK,
186 ID_9005_GENERIC_MASK,
187 "Adaptec AIC7901 Ultra320 SCSI adapter",
188 ahd_aic7901_setup
189 },
190 {
191 ID_AIC7901A & ID_DEV_VENDOR_MASK,
192 ID_DEV_VENDOR_MASK,
193 "Adaptec AIC7901A Ultra320 SCSI adapter",
194 ahd_aic7901A_setup
195 },
196 {
197 ID_AIC7902 & ID_9005_GENERIC_MASK,
198 ID_9005_GENERIC_MASK,
199 "Adaptec AIC7902 Ultra320 SCSI adapter",
200 ahd_aic7902_setup
201 }
202 };
203
204 const u_int ahd_num_pci_devs = ARRAY_SIZE(ahd_pci_ident_table);
205
206 #define DEVCONFIG 0x40
207 #define PCIXINITPAT 0x0000E000ul
208 #define PCIXINIT_PCI33_66 0x0000E000ul
209 #define PCIXINIT_PCIX50_66 0x0000C000ul
210 #define PCIXINIT_PCIX66_100 0x0000A000ul
211 #define PCIXINIT_PCIX100_133 0x00008000ul
212 #define PCI_BUS_MODES_INDEX(devconfig) \
213 (((devconfig) & PCIXINITPAT) >> 13)
214 static const char *pci_bus_modes[] =
215 {
216 "PCI bus mode unknown",
217 "PCI bus mode unknown",
218 "PCI bus mode unknown",
219 "PCI bus mode unknown",
220 "PCI-X 101-133Mhz",
221 "PCI-X 67-100Mhz",
222 "PCI-X 50-66Mhz",
223 "PCI 33 or 66Mhz"
224 };
225
226 #define TESTMODE 0x00000800ul
227 #define IRDY_RST 0x00000200ul
228 #define FRAME_RST 0x00000100ul
229 #define PCI64BIT 0x00000080ul
230 #define MRDCEN 0x00000040ul
231 #define ENDIANSEL 0x00000020ul
232 #define MIXQWENDIANEN 0x00000008ul
233 #define DACEN 0x00000004ul
234 #define STPWLEVEL 0x00000002ul
235 #define QWENDIANSEL 0x00000001ul
236
237 #define DEVCONFIG1 0x44
238 #define PREQDIS 0x01
239
240 #define CSIZE_LATTIME 0x0c
241 #define CACHESIZE 0x000000fful
242 #define LATTIME 0x0000ff00ul
243
244 static int ahd_check_extport(struct ahd_softc *ahd);
245 static void ahd_configure_termination(struct ahd_softc *ahd,
246 u_int adapter_control);
247 static void ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat);
248
249 struct ahd_pci_identity *
250 ahd_find_pci_device(ahd_dev_softc_t pci)
251 {
252 uint64_t full_id;
253 uint16_t device;
254 uint16_t vendor;
255 uint16_t subdevice;
256 uint16_t subvendor;
257 struct ahd_pci_identity *entry;
258 u_int i;
259
260 vendor = ahd_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
261 device = ahd_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
262 subvendor = ahd_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
263 subdevice = ahd_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
264 full_id = ahd_compose_id(device,
265 vendor,
266 subdevice,
267 subvendor);
268
269 /*
270 * Controllers, mask out the IROC/HostRAID bit
271 */
272
273 full_id &= ID_ALL_IROC_MASK;
274
275 for (i = 0; i < ahd_num_pci_devs; i++) {
276 entry = &ahd_pci_ident_table[i];
277 if (entry->full_id == (full_id & entry->id_mask)) {
278 /* Honor exclusion entries. */
279 if (entry->name == NULL)
280 return (NULL);
281 return (entry);
282 }
283 }
284 return (NULL);
285 }
286
287 int
288 ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
289 {
290 struct scb_data *shared_scb_data;
291 u_int command;
292 uint32_t devconfig;
293 uint16_t subvendor;
294 int error;
295
296 shared_scb_data = NULL;
297 ahd->description = entry->name;
298 /*
299 * Record if this is an HP board.
300 */
301 subvendor = ahd_pci_read_config(ahd->dev_softc,
302 PCIR_SUBVEND_0, /*bytes*/2);
303 if (subvendor == SUBID_HP)
304 ahd->flags |= AHD_HP_BOARD;
305
306 error = entry->setup(ahd);
307 if (error != 0)
308 return (error);
309
310 devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
311 if ((devconfig & PCIXINITPAT) == PCIXINIT_PCI33_66) {
312 ahd->chip |= AHD_PCI;
313 /* Disable PCIX workarounds when running in PCI mode. */
314 ahd->bugs &= ~AHD_PCIX_BUG_MASK;
315 } else {
316 ahd->chip |= AHD_PCIX;
317 }
318 ahd->bus_description = pci_bus_modes[PCI_BUS_MODES_INDEX(devconfig)];
319
320 ahd_power_state_change(ahd, AHD_POWER_STATE_D0);
321
322 error = ahd_pci_map_registers(ahd);
323 if (error != 0)
324 return (error);
325
326 /*
327 * If we need to support high memory, enable dual
328 * address cycles. This bit must be set to enable
329 * high address bit generation even if we are on a
330 * 64bit bus (PCI64BIT set in devconfig).
331 */
332 if ((ahd->flags & (AHD_39BIT_ADDRESSING|AHD_64BIT_ADDRESSING)) != 0) {
333 uint32_t devconfig;
334
335 if (bootverbose)
336 printf("%s: Enabling 39Bit Addressing\n",
337 ahd_name(ahd));
338 devconfig = ahd_pci_read_config(ahd->dev_softc,
339 DEVCONFIG, /*bytes*/4);
340 devconfig |= DACEN;
341 ahd_pci_write_config(ahd->dev_softc, DEVCONFIG,
342 devconfig, /*bytes*/4);
343 }
344
345 /* Ensure busmastering is enabled */
346 command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
347 command |= PCIM_CMD_BUSMASTEREN;
348 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
349
350 error = ahd_softc_init(ahd);
351 if (error != 0)
352 return (error);
353
354 ahd->bus_intr = ahd_pci_intr;
355
356 error = ahd_reset(ahd, /*reinit*/FALSE);
357 if (error != 0)
358 return (ENXIO);
359
360 ahd->pci_cachesize =
361 ahd_pci_read_config(ahd->dev_softc, CSIZE_LATTIME,
362 /*bytes*/1) & CACHESIZE;
363 ahd->pci_cachesize *= 4;
364
365 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
366 /* See if we have a SEEPROM and perform auto-term */
367 error = ahd_check_extport(ahd);
368 if (error != 0)
369 return (error);
370
371 /* Core initialization */
372 error = ahd_init(ahd);
373 if (error != 0)
374 return (error);
375
376 /*
377 * Allow interrupts now that we are completely setup.
378 */
379 error = ahd_pci_map_int(ahd);
380 if (!error)
381 ahd->init_level++;
382 return error;
383 }
384
385 /*
386 * Perform some simple tests that should catch situations where
387 * our registers are invalidly mapped.
388 */
389 int
390 ahd_pci_test_register_access(struct ahd_softc *ahd)
391 {
392 uint32_t cmd;
393 u_int targpcistat;
394 u_int pci_status1;
395 int error;
396 uint8_t hcntrl;
397
398 error = EIO;
399
400 /*
401 * Enable PCI error interrupt status, but suppress NMIs
402 * generated by SERR raised due to target aborts.
403 */
404 cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
405 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
406 cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
407
408 /*
409 * First a simple test to see if any
410 * registers can be read. Reading
411 * HCNTRL has no side effects and has
412 * at least one bit that is guaranteed to
413 * be zero so it is a good register to
414 * use for this test.
415 */
416 hcntrl = ahd_inb(ahd, HCNTRL);
417 if (hcntrl == 0xFF)
418 goto fail;
419
420 /*
421 * Next create a situation where write combining
422 * or read prefetching could be initiated by the
423 * CPU or host bridge. Our device does not support
424 * either, so look for data corruption and/or flaged
425 * PCI errors. First pause without causing another
426 * chip reset.
427 */
428 hcntrl &= ~CHIPRST;
429 ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
430 while (ahd_is_paused(ahd) == 0)
431 ;
432
433 /* Clear any PCI errors that occurred before our driver attached. */
434 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
435 targpcistat = ahd_inb(ahd, TARGPCISTAT);
436 ahd_outb(ahd, TARGPCISTAT, targpcistat);
437 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
438 PCIR_STATUS + 1, /*bytes*/1);
439 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
440 pci_status1, /*bytes*/1);
441 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
442 ahd_outb(ahd, CLRINT, CLRPCIINT);
443
444 ahd_outb(ahd, SEQCTL0, PERRORDIS);
445 ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
446 if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
447 goto fail;
448
449 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
450 u_int targpcistat;
451
452 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
453 targpcistat = ahd_inb(ahd, TARGPCISTAT);
454 if ((targpcistat & STA) != 0)
455 goto fail;
456 }
457
458 error = 0;
459
460 fail:
461 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
462
463 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
464 targpcistat = ahd_inb(ahd, TARGPCISTAT);
465
466 /* Silently clear any latched errors. */
467 ahd_outb(ahd, TARGPCISTAT, targpcistat);
468 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
469 PCIR_STATUS + 1, /*bytes*/1);
470 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
471 pci_status1, /*bytes*/1);
472 ahd_outb(ahd, CLRINT, CLRPCIINT);
473 }
474 ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
475 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
476 return (error);
477 }
478
479 /*
480 * Check the external port logic for a serial eeprom
481 * and termination/cable detection contrls.
482 */
483 static int
484 ahd_check_extport(struct ahd_softc *ahd)
485 {
486 struct vpd_config vpd;
487 struct seeprom_config *sc;
488 u_int adapter_control;
489 int have_seeprom;
490 int error;
491
492 sc = ahd->seep_config;
493 have_seeprom = ahd_acquire_seeprom(ahd);
494 if (have_seeprom) {
495 u_int start_addr;
496
497 /*
498 * Fetch VPD for this function and parse it.
499 */
500 if (bootverbose)
501 printf("%s: Reading VPD from SEEPROM...",
502 ahd_name(ahd));
503
504 /* Address is always in units of 16bit words */
505 start_addr = ((2 * sizeof(*sc))
506 + (sizeof(vpd) * (ahd->channel - 'A'))) / 2;
507
508 error = ahd_read_seeprom(ahd, (uint16_t *)&vpd,
509 start_addr, sizeof(vpd)/2,
510 /*bytestream*/TRUE);
511 if (error == 0)
512 error = ahd_parse_vpddata(ahd, &vpd);
513 if (bootverbose)
514 printf("%s: VPD parsing %s\n",
515 ahd_name(ahd),
516 error == 0 ? "successful" : "failed");
517
518 if (bootverbose)
519 printf("%s: Reading SEEPROM...", ahd_name(ahd));
520
521 /* Address is always in units of 16bit words */
522 start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A');
523
524 error = ahd_read_seeprom(ahd, (uint16_t *)sc,
525 start_addr, sizeof(*sc)/2,
526 /*bytestream*/FALSE);
527
528 if (error != 0) {
529 printf("Unable to read SEEPROM\n");
530 have_seeprom = 0;
531 } else {
532 have_seeprom = ahd_verify_cksum(sc);
533
534 if (bootverbose) {
535 if (have_seeprom == 0)
536 printf ("checksum error\n");
537 else
538 printf ("done.\n");
539 }
540 }
541 ahd_release_seeprom(ahd);
542 }
543
544 if (!have_seeprom) {
545 u_int nvram_scb;
546
547 /*
548 * Pull scratch ram settings and treat them as
549 * if they are the contents of an seeprom if
550 * the 'ADPT', 'BIOS', or 'ASPI' signature is found
551 * in SCB 0xFF. We manually compose the data as 16bit
552 * values to avoid endian issues.
553 */
554 ahd_set_scbptr(ahd, 0xFF);
555 nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET);
556 if (nvram_scb != 0xFF
557 && ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
558 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D'
559 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
560 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T')
561 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B'
562 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I'
563 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O'
564 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S')
565 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
566 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S'
567 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
568 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) {
569 uint16_t *sc_data;
570 int i;
571
572 ahd_set_scbptr(ahd, nvram_scb);
573 sc_data = (uint16_t *)sc;
574 for (i = 0; i < 64; i += 2)
575 *sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i);
576 have_seeprom = ahd_verify_cksum(sc);
577 if (have_seeprom)
578 ahd->flags |= AHD_SCB_CONFIG_USED;
579 }
580 }
581
582 #ifdef AHD_DEBUG
583 if (have_seeprom != 0
584 && (ahd_debug & AHD_DUMP_SEEPROM) != 0) {
585 uint16_t *sc_data;
586 int i;
587
588 printf("%s: Seeprom Contents:", ahd_name(ahd));
589 sc_data = (uint16_t *)sc;
590 for (i = 0; i < (sizeof(*sc)); i += 2)
591 printf("\n\t0x%.4x", sc_data[i]);
592 printf("\n");
593 }
594 #endif
595
596 if (!have_seeprom) {
597 if (bootverbose)
598 printf("%s: No SEEPROM available.\n", ahd_name(ahd));
599 ahd->flags |= AHD_USEDEFAULTS;
600 error = ahd_default_config(ahd);
601 adapter_control = CFAUTOTERM|CFSEAUTOTERM;
602 free(ahd->seep_config, M_DEVBUF);
603 ahd->seep_config = NULL;
604 } else {
605 error = ahd_parse_cfgdata(ahd, sc);
606 adapter_control = sc->adapter_control;
607 }
608 if (error != 0)
609 return (error);
610
611 ahd_configure_termination(ahd, adapter_control);
612
613 return (0);
614 }
615
616 static void
617 ahd_configure_termination(struct ahd_softc *ahd, u_int adapter_control)
618 {
619 int error;
620 u_int sxfrctl1;
621 uint8_t termctl;
622 uint32_t devconfig;
623
624 devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
625 devconfig &= ~STPWLEVEL;
626 if ((ahd->flags & AHD_STPWLEVEL_A) != 0)
627 devconfig |= STPWLEVEL;
628 if (bootverbose)
629 printf("%s: STPWLEVEL is %s\n",
630 ahd_name(ahd), (devconfig & STPWLEVEL) ? "on" : "off");
631 ahd_pci_write_config(ahd->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
632
633 /* Make sure current sensing is off. */
634 if ((ahd->flags & AHD_CURRENT_SENSING) != 0) {
635 (void)ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, 0);
636 }
637
638 /*
639 * Read to sense. Write to set.
640 */
641 error = ahd_read_flexport(ahd, FLXADDR_TERMCTL, &termctl);
642 if ((adapter_control & CFAUTOTERM) == 0) {
643 if (bootverbose)
644 printf("%s: Manual Primary Termination\n",
645 ahd_name(ahd));
646 termctl &= ~(FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH);
647 if ((adapter_control & CFSTERM) != 0)
648 termctl |= FLX_TERMCTL_ENPRILOW;
649 if ((adapter_control & CFWSTERM) != 0)
650 termctl |= FLX_TERMCTL_ENPRIHIGH;
651 } else if (error != 0) {
652 printf("%s: Primary Auto-Term Sensing failed! "
653 "Using Defaults.\n", ahd_name(ahd));
654 termctl = FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH;
655 }
656
657 if ((adapter_control & CFSEAUTOTERM) == 0) {
658 if (bootverbose)
659 printf("%s: Manual Secondary Termination\n",
660 ahd_name(ahd));
661 termctl &= ~(FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH);
662 if ((adapter_control & CFSELOWTERM) != 0)
663 termctl |= FLX_TERMCTL_ENSECLOW;
664 if ((adapter_control & CFSEHIGHTERM) != 0)
665 termctl |= FLX_TERMCTL_ENSECHIGH;
666 } else if (error != 0) {
667 printf("%s: Secondary Auto-Term Sensing failed! "
668 "Using Defaults.\n", ahd_name(ahd));
669 termctl |= FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH;
670 }
671
672 /*
673 * Now set the termination based on what we found.
674 */
675 sxfrctl1 = ahd_inb(ahd, SXFRCTL1) & ~STPWEN;
676 ahd->flags &= ~AHD_TERM_ENB_A;
677 if ((termctl & FLX_TERMCTL_ENPRILOW) != 0) {
678 ahd->flags |= AHD_TERM_ENB_A;
679 sxfrctl1 |= STPWEN;
680 }
681 /* Must set the latch once in order to be effective. */
682 ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN);
683 ahd_outb(ahd, SXFRCTL1, sxfrctl1);
684
685 error = ahd_write_flexport(ahd, FLXADDR_TERMCTL, termctl);
686 if (error != 0) {
687 printf("%s: Unable to set termination settings!\n",
688 ahd_name(ahd));
689 } else if (bootverbose) {
690 printf("%s: Primary High byte termination %sabled\n",
691 ahd_name(ahd),
692 (termctl & FLX_TERMCTL_ENPRIHIGH) ? "En" : "Dis");
693
694 printf("%s: Primary Low byte termination %sabled\n",
695 ahd_name(ahd),
696 (termctl & FLX_TERMCTL_ENPRILOW) ? "En" : "Dis");
697
698 printf("%s: Secondary High byte termination %sabled\n",
699 ahd_name(ahd),
700 (termctl & FLX_TERMCTL_ENSECHIGH) ? "En" : "Dis");
701
702 printf("%s: Secondary Low byte termination %sabled\n",
703 ahd_name(ahd),
704 (termctl & FLX_TERMCTL_ENSECLOW) ? "En" : "Dis");
705 }
706 return;
707 }
708
709 #define DPE 0x80
710 #define SSE 0x40
711 #define RMA 0x20
712 #define RTA 0x10
713 #define STA 0x08
714 #define DPR 0x01
715
716 static const char *split_status_source[] =
717 {
718 "DFF0",
719 "DFF1",
720 "OVLY",
721 "CMC",
722 };
723
724 static const char *pci_status_source[] =
725 {
726 "DFF0",
727 "DFF1",
728 "SG",
729 "CMC",
730 "OVLY",
731 "NONE",
732 "MSI",
733 "TARG"
734 };
735
736 static const char *split_status_strings[] =
737 {
738 "%s: Received split response in %s.\n",
739 "%s: Received split completion error message in %s\n",
740 "%s: Receive overrun in %s\n",
741 "%s: Count not complete in %s\n",
742 "%s: Split completion data bucket in %s\n",
743 "%s: Split completion address error in %s\n",
744 "%s: Split completion byte count error in %s\n",
745 "%s: Signaled Target-abort to early terminate a split in %s\n"
746 };
747
748 static const char *pci_status_strings[] =
749 {
750 "%s: Data Parity Error has been reported via PERR# in %s\n",
751 "%s: Target initial wait state error in %s\n",
752 "%s: Split completion read data parity error in %s\n",
753 "%s: Split completion address attribute parity error in %s\n",
754 "%s: Received a Target Abort in %s\n",
755 "%s: Received a Master Abort in %s\n",
756 "%s: Signal System Error Detected in %s\n",
757 "%s: Address or Write Phase Parity Error Detected in %s.\n"
758 };
759
760 void
761 ahd_pci_intr(struct ahd_softc *ahd)
762 {
763 uint8_t pci_status[8];
764 ahd_mode_state saved_modes;
765 u_int pci_status1;
766 u_int intstat;
767 u_int i;
768 u_int reg;
769
770 intstat = ahd_inb(ahd, INTSTAT);
771
772 if ((intstat & SPLTINT) != 0)
773 ahd_pci_split_intr(ahd, intstat);
774
775 if ((intstat & PCIINT) == 0)
776 return;
777
778 printf("%s: PCI error Interrupt\n", ahd_name(ahd));
779 saved_modes = ahd_save_modes(ahd);
780 ahd_dump_card_state(ahd);
781 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
782 for (i = 0, reg = DF0PCISTAT; i < 8; i++, reg++) {
783
784 if (i == 5)
785 continue;
786 pci_status[i] = ahd_inb(ahd, reg);
787 /* Clear latched errors. So our interrupt deasserts. */
788 ahd_outb(ahd, reg, pci_status[i]);
789 }
790
791 for (i = 0; i < 8; i++) {
792 u_int bit;
793
794 if (i == 5)
795 continue;
796
797 for (bit = 0; bit < 8; bit++) {
798
799 if ((pci_status[i] & (0x1 << bit)) != 0) {
800 static const char *s;
801
802 s = pci_status_strings[bit];
803 if (i == 7/*TARG*/ && bit == 3)
804 s = "%s: Signaled Target Abort\n";
805 printf(s, ahd_name(ahd), pci_status_source[i]);
806 }
807 }
808 }
809 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
810 PCIR_STATUS + 1, /*bytes*/1);
811 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
812 pci_status1, /*bytes*/1);
813 ahd_restore_modes(ahd, saved_modes);
814 ahd_outb(ahd, CLRINT, CLRPCIINT);
815 ahd_unpause(ahd);
816 }
817
818 static void
819 ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
820 {
821 uint8_t split_status[4];
822 uint8_t split_status1[4];
823 uint8_t sg_split_status[2];
824 uint8_t sg_split_status1[2];
825 ahd_mode_state saved_modes;
826 u_int i;
827 uint16_t pcix_status;
828
829 /*
830 * Check for splits in all modes. Modes 0 and 1
831 * additionally have SG engine splits to look at.
832 */
833 pcix_status = ahd_pci_read_config(ahd->dev_softc, PCIXR_STATUS,
834 /*bytes*/2);
835 printf("%s: PCI Split Interrupt - PCI-X status = 0x%x\n",
836 ahd_name(ahd), pcix_status);
837 saved_modes = ahd_save_modes(ahd);
838 for (i = 0; i < 4; i++) {
839 ahd_set_modes(ahd, i, i);
840
841 split_status[i] = ahd_inb(ahd, DCHSPLTSTAT0);
842 split_status1[i] = ahd_inb(ahd, DCHSPLTSTAT1);
843 /* Clear latched errors. So our interrupt deasserts. */
844 ahd_outb(ahd, DCHSPLTSTAT0, split_status[i]);
845 ahd_outb(ahd, DCHSPLTSTAT1, split_status1[i]);
846 if (i > 1)
847 continue;
848 sg_split_status[i] = ahd_inb(ahd, SGSPLTSTAT0);
849 sg_split_status1[i] = ahd_inb(ahd, SGSPLTSTAT1);
850 /* Clear latched errors. So our interrupt deasserts. */
851 ahd_outb(ahd, SGSPLTSTAT0, sg_split_status[i]);
852 ahd_outb(ahd, SGSPLTSTAT1, sg_split_status1[i]);
853 }
854
855 for (i = 0; i < 4; i++) {
856 u_int bit;
857
858 for (bit = 0; bit < 8; bit++) {
859
860 if ((split_status[i] & (0x1 << bit)) != 0) {
861 static const char *s;
862
863 s = split_status_strings[bit];
864 printf(s, ahd_name(ahd),
865 split_status_source[i]);
866 }
867
868 if (i > 1)
869 continue;
870
871 if ((sg_split_status[i] & (0x1 << bit)) != 0) {
872 static const char *s;
873
874 s = split_status_strings[bit];
875 printf(s, ahd_name(ahd), "SG");
876 }
877 }
878 }
879 /*
880 * Clear PCI-X status bits.
881 */
882 ahd_pci_write_config(ahd->dev_softc, PCIXR_STATUS,
883 pcix_status, /*bytes*/2);
884 ahd_outb(ahd, CLRINT, CLRSPLTINT);
885 ahd_restore_modes(ahd, saved_modes);
886 }
887
888 static int
889 ahd_aic7901_setup(struct ahd_softc *ahd)
890 {
891
892 ahd->chip = AHD_AIC7901;
893 ahd->features = AHD_AIC7901_FE;
894 return (ahd_aic790X_setup(ahd));
895 }
896
897 static int
898 ahd_aic7901A_setup(struct ahd_softc *ahd)
899 {
900
901 ahd->chip = AHD_AIC7901A;
902 ahd->features = AHD_AIC7901A_FE;
903 return (ahd_aic790X_setup(ahd));
904 }
905
906 static int
907 ahd_aic7902_setup(struct ahd_softc *ahd)
908 {
909 ahd->chip = AHD_AIC7902;
910 ahd->features = AHD_AIC7902_FE;
911 return (ahd_aic790X_setup(ahd));
912 }
913
914 static int
915 ahd_aic790X_setup(struct ahd_softc *ahd)
916 {
917 ahd_dev_softc_t pci;
918 u_int rev;
919
920 pci = ahd->dev_softc;
921 rev = ahd_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
922 if (rev < ID_AIC7902_PCI_REV_A4) {
923 printf("%s: Unable to attach to unsupported chip revision %d\n",
924 ahd_name(ahd), rev);
925 ahd_pci_write_config(pci, PCIR_COMMAND, 0, /*bytes*/2);
926 return (ENXIO);
927 }
928 ahd->channel = ahd_get_pci_function(pci) + 'A';
929 if (rev < ID_AIC7902_PCI_REV_B0) {
930 /*
931 * Enable A series workarounds.
932 */
933 ahd->bugs |= AHD_SENT_SCB_UPDATE_BUG|AHD_ABORT_LQI_BUG
934 | AHD_PKT_BITBUCKET_BUG|AHD_LONG_SETIMO_BUG
935 | AHD_NLQICRC_DELAYED_BUG|AHD_SCSIRST_BUG
936 | AHD_LQO_ATNO_BUG|AHD_AUTOFLUSH_BUG
937 | AHD_CLRLQO_AUTOCLR_BUG|AHD_PCIX_MMAPIO_BUG
938 | AHD_PCIX_CHIPRST_BUG|AHD_PCIX_SCBRAM_RD_BUG
939 | AHD_PKTIZED_STATUS_BUG|AHD_PKT_LUN_BUG
940 | AHD_MDFF_WSCBPTR_BUG|AHD_REG_SLOW_SETTLE_BUG
941 | AHD_SET_MODE_BUG|AHD_BUSFREEREV_BUG
942 | AHD_NONPACKFIFO_BUG|AHD_PACED_NEGTABLE_BUG
943 | AHD_FAINT_LED_BUG;
944
945 /*
946 * IO Cell paramter setup.
947 */
948 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
949
950 if ((ahd->flags & AHD_HP_BOARD) == 0)
951 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVA);
952 } else {
953 /* This is revision B and newer. */
954 extern uint32_t aic79xx_slowcrc;
955 u_int devconfig1;
956
957 ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS
958 | AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY
959 | AHD_BUSFREEREV_BUG;
960 ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
961
962 /* If the user requested the the SLOWCRC bit to be set. */
963 if (aic79xx_slowcrc)
964 ahd->features |= AHD_AIC79XXB_SLOWCRC;
965
966 /*
967 * Some issues have been resolved in the 7901B.
968 */
969 if ((ahd->features & AHD_MULTI_FUNC) != 0)
970 ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
971
972 /*
973 * IO Cell paramter setup.
974 */
975 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
976 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);
977 AHD_SET_AMPLITUDE(ahd, AHD_AMPLITUDE_DEF);
978
979 /*
980 * Set the PREQDIS bit for H2B which disables some workaround
981 * that doesn't work on regular PCI busses.
982 * XXX - Find out exactly what this does from the hardware
983 * folks!
984 */
985 devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
986 ahd_pci_write_config(pci, DEVCONFIG1,
987 devconfig1|PREQDIS, /*bytes*/1);
988 devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
989 }
990
991 return (0);
992 }
A Kernel for the Dreambox dm7025.