?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
[MIPS] Unify dma-{coherent,noncoherent.ip27,ip32}
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / aic7xxx / aic79xx_pci.c
blob8d72bbae96ad1a59a3777b662d8e47b640abc0c1
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 static 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 PCIx Ultra320 SCSI adapter",
113 ahd_aic7901_setup
114 },
115 {
116 ID_AHA_29320LPE,
117 ID_ALL_MASK,
118 "Adaptec 29320LPE PCIe Ultra320 SCSI adapter",
119 ahd_aic7901_setup
120 },
121 /* aic7901A based controllers */
122 {
123 ID_AHA_29320LP,
124 ID_ALL_MASK,
125 "Adaptec 29320LP Ultra320 SCSI adapter",
126 ahd_aic7901A_setup
127 },
128 /* aic7902 based controllers */
129 {
130 ID_AHA_29320,
131 ID_ALL_MASK,
132 "Adaptec 29320 Ultra320 SCSI adapter",
133 ahd_aic7902_setup
134 },
135 {
136 ID_AHA_29320B,
137 ID_ALL_MASK,
138 "Adaptec 29320B Ultra320 SCSI adapter",
139 ahd_aic7902_setup
140 },
141 {
142 ID_AHA_39320,
143 ID_ALL_MASK,
144 "Adaptec 39320 Ultra320 SCSI adapter",
145 ahd_aic7902_setup
146 },
147 {
148 ID_AHA_39320_B,
149 ID_ALL_MASK,
150 "Adaptec 39320 Ultra320 SCSI adapter",
151 ahd_aic7902_setup
152 },
153 {
154 ID_AHA_39320_B_DELL,
155 ID_ALL_MASK,
156 "Adaptec (Dell OEM) 39320 Ultra320 SCSI adapter",
157 ahd_aic7902_setup
158 },
159 {
160 ID_AHA_39320A,
161 ID_ALL_MASK,
162 "Adaptec 39320A Ultra320 SCSI adapter",
163 ahd_aic7902_setup
164 },
165 {
166 ID_AHA_39320D,
167 ID_ALL_MASK,
168 "Adaptec 39320D Ultra320 SCSI adapter",
169 ahd_aic7902_setup
170 },
171 {
172 ID_AHA_39320D_HP,
173 ID_ALL_MASK,
174 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
175 ahd_aic7902_setup
176 },
177 {
178 ID_AHA_39320D_B,
179 ID_ALL_MASK,
180 "Adaptec 39320D Ultra320 SCSI adapter",
181 ahd_aic7902_setup
182 },
183 {
184 ID_AHA_39320D_B_HP,
185 ID_ALL_MASK,
186 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
187 ahd_aic7902_setup
188 },
189 /* Generic chip probes for devices we don't know 'exactly' */
190 {
191 ID_AIC7901 & ID_9005_GENERIC_MASK,
192 ID_9005_GENERIC_MASK,
193 "Adaptec AIC7901 Ultra320 SCSI adapter",
194 ahd_aic7901_setup
195 },
196 {
197 ID_AIC7901A & ID_DEV_VENDOR_MASK,
198 ID_DEV_VENDOR_MASK,
199 "Adaptec AIC7901A Ultra320 SCSI adapter",
200 ahd_aic7901A_setup
201 },
202 {
203 ID_AIC7902 & ID_9005_GENERIC_MASK,
204 ID_9005_GENERIC_MASK,
205 "Adaptec AIC7902 Ultra320 SCSI adapter",
206 ahd_aic7902_setup
207 }
208 };
209
210 static const u_int ahd_num_pci_devs = ARRAY_SIZE(ahd_pci_ident_table);
211
212 #define DEVCONFIG 0x40
213 #define PCIXINITPAT 0x0000E000ul
214 #define PCIXINIT_PCI33_66 0x0000E000ul
215 #define PCIXINIT_PCIX50_66 0x0000C000ul
216 #define PCIXINIT_PCIX66_100 0x0000A000ul
217 #define PCIXINIT_PCIX100_133 0x00008000ul
218 #define PCI_BUS_MODES_INDEX(devconfig) \
219 (((devconfig) & PCIXINITPAT) >> 13)
220 static const char *pci_bus_modes[] =
221 {
222 "PCI bus mode unknown",
223 "PCI bus mode unknown",
224 "PCI bus mode unknown",
225 "PCI bus mode unknown",
226 "PCI-X 101-133Mhz",
227 "PCI-X 67-100Mhz",
228 "PCI-X 50-66Mhz",
229 "PCI 33 or 66Mhz"
230 };
231
232 #define TESTMODE 0x00000800ul
233 #define IRDY_RST 0x00000200ul
234 #define FRAME_RST 0x00000100ul
235 #define PCI64BIT 0x00000080ul
236 #define MRDCEN 0x00000040ul
237 #define ENDIANSEL 0x00000020ul
238 #define MIXQWENDIANEN 0x00000008ul
239 #define DACEN 0x00000004ul
240 #define STPWLEVEL 0x00000002ul
241 #define QWENDIANSEL 0x00000001ul
242
243 #define DEVCONFIG1 0x44
244 #define PREQDIS 0x01
245
246 #define CSIZE_LATTIME 0x0c
247 #define CACHESIZE 0x000000fful
248 #define LATTIME 0x0000ff00ul
249
250 static int ahd_check_extport(struct ahd_softc *ahd);
251 static void ahd_configure_termination(struct ahd_softc *ahd,
252 u_int adapter_control);
253 static void ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat);
254 static void ahd_pci_intr(struct ahd_softc *ahd);
255
256 struct ahd_pci_identity *
257 ahd_find_pci_device(ahd_dev_softc_t pci)
258 {
259 uint64_t full_id;
260 uint16_t device;
261 uint16_t vendor;
262 uint16_t subdevice;
263 uint16_t subvendor;
264 struct ahd_pci_identity *entry;
265 u_int i;
266
267 vendor = ahd_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
268 device = ahd_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
269 subvendor = ahd_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
270 subdevice = ahd_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
271 full_id = ahd_compose_id(device,
272 vendor,
273 subdevice,
274 subvendor);
275
276 /*
277 * Controllers, mask out the IROC/HostRAID bit
278 */
279
280 full_id &= ID_ALL_IROC_MASK;
281
282 for (i = 0; i < ahd_num_pci_devs; i++) {
283 entry = &ahd_pci_ident_table[i];
284 if (entry->full_id == (full_id & entry->id_mask)) {
285 /* Honor exclusion entries. */
286 if (entry->name == NULL)
287 return (NULL);
288 return (entry);
289 }
290 }
291 return (NULL);
292 }
293
294 int
295 ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
296 {
297 struct scb_data *shared_scb_data;
298 u_int command;
299 uint32_t devconfig;
300 uint16_t subvendor;
301 int error;
302
303 shared_scb_data = NULL;
304 ahd->description = entry->name;
305 /*
306 * Record if this is an HP board.
307 */
308 subvendor = ahd_pci_read_config(ahd->dev_softc,
309 PCIR_SUBVEND_0, /*bytes*/2);
310 if (subvendor == SUBID_HP)
311 ahd->flags |= AHD_HP_BOARD;
312
313 error = entry->setup(ahd);
314 if (error != 0)
315 return (error);
316
317 devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
318 if ((devconfig & PCIXINITPAT) == PCIXINIT_PCI33_66) {
319 ahd->chip |= AHD_PCI;
320 /* Disable PCIX workarounds when running in PCI mode. */
321 ahd->bugs &= ~AHD_PCIX_BUG_MASK;
322 } else {
323 ahd->chip |= AHD_PCIX;
324 }
325 ahd->bus_description = pci_bus_modes[PCI_BUS_MODES_INDEX(devconfig)];
326
327 ahd_power_state_change(ahd, AHD_POWER_STATE_D0);
328
329 error = ahd_pci_map_registers(ahd);
330 if (error != 0)
331 return (error);
332
333 /*
334 * If we need to support high memory, enable dual
335 * address cycles. This bit must be set to enable
336 * high address bit generation even if we are on a
337 * 64bit bus (PCI64BIT set in devconfig).
338 */
339 if ((ahd->flags & (AHD_39BIT_ADDRESSING|AHD_64BIT_ADDRESSING)) != 0) {
340 uint32_t devconfig;
341
342 if (bootverbose)
343 printf("%s: Enabling 39Bit Addressing\n",
344 ahd_name(ahd));
345 devconfig = ahd_pci_read_config(ahd->dev_softc,
346 DEVCONFIG, /*bytes*/4);
347 devconfig |= DACEN;
348 ahd_pci_write_config(ahd->dev_softc, DEVCONFIG,
349 devconfig, /*bytes*/4);
350 }
351
352 /* Ensure busmastering is enabled */
353 command = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
354 command |= PCIM_CMD_BUSMASTEREN;
355 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
356
357 error = ahd_softc_init(ahd);
358 if (error != 0)
359 return (error);
360
361 ahd->bus_intr = ahd_pci_intr;
362
363 error = ahd_reset(ahd, /*reinit*/FALSE);
364 if (error != 0)
365 return (ENXIO);
366
367 ahd->pci_cachesize =
368 ahd_pci_read_config(ahd->dev_softc, CSIZE_LATTIME,
369 /*bytes*/1) & CACHESIZE;
370 ahd->pci_cachesize *= 4;
371
372 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
373 /* See if we have a SEEPROM and perform auto-term */
374 error = ahd_check_extport(ahd);
375 if (error != 0)
376 return (error);
377
378 /* Core initialization */
379 error = ahd_init(ahd);
380 if (error != 0)
381 return (error);
382
383 /*
384 * Allow interrupts now that we are completely setup.
385 */
386 error = ahd_pci_map_int(ahd);
387 if (!error)
388 ahd->init_level++;
389 return error;
390 }
391
392 /*
393 * Perform some simple tests that should catch situations where
394 * our registers are invalidly mapped.
395 */
396 int
397 ahd_pci_test_register_access(struct ahd_softc *ahd)
398 {
399 uint32_t cmd;
400 u_int targpcistat;
401 u_int pci_status1;
402 int error;
403 uint8_t hcntrl;
404
405 error = EIO;
406
407 /*
408 * Enable PCI error interrupt status, but suppress NMIs
409 * generated by SERR raised due to target aborts.
410 */
411 cmd = ahd_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
412 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
413 cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
414
415 /*
416 * First a simple test to see if any
417 * registers can be read. Reading
418 * HCNTRL has no side effects and has
419 * at least one bit that is guaranteed to
420 * be zero so it is a good register to
421 * use for this test.
422 */
423 hcntrl = ahd_inb(ahd, HCNTRL);
424 if (hcntrl == 0xFF)
425 goto fail;
426
427 /*
428 * Next create a situation where write combining
429 * or read prefetching could be initiated by the
430 * CPU or host bridge. Our device does not support
431 * either, so look for data corruption and/or flaged
432 * PCI errors. First pause without causing another
433 * chip reset.
434 */
435 hcntrl &= ~CHIPRST;
436 ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
437 while (ahd_is_paused(ahd) == 0)
438 ;
439
440 /* Clear any PCI errors that occurred before our driver attached. */
441 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
442 targpcistat = ahd_inb(ahd, TARGPCISTAT);
443 ahd_outb(ahd, TARGPCISTAT, targpcistat);
444 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
445 PCIR_STATUS + 1, /*bytes*/1);
446 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
447 pci_status1, /*bytes*/1);
448 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
449 ahd_outb(ahd, CLRINT, CLRPCIINT);
450
451 ahd_outb(ahd, SEQCTL0, PERRORDIS);
452 ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
453 if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
454 goto fail;
455
456 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
457 u_int targpcistat;
458
459 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
460 targpcistat = ahd_inb(ahd, TARGPCISTAT);
461 if ((targpcistat & STA) != 0)
462 goto fail;
463 }
464
465 error = 0;
466
467 fail:
468 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
469
470 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
471 targpcistat = ahd_inb(ahd, TARGPCISTAT);
472
473 /* Silently clear any latched errors. */
474 ahd_outb(ahd, TARGPCISTAT, targpcistat);
475 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
476 PCIR_STATUS + 1, /*bytes*/1);
477 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
478 pci_status1, /*bytes*/1);
479 ahd_outb(ahd, CLRINT, CLRPCIINT);
480 }
481 ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
482 ahd_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
483 return (error);
484 }
485
486 /*
487 * Check the external port logic for a serial eeprom
488 * and termination/cable detection contrls.
489 */
490 static int
491 ahd_check_extport(struct ahd_softc *ahd)
492 {
493 struct vpd_config vpd;
494 struct seeprom_config *sc;
495 u_int adapter_control;
496 int have_seeprom;
497 int error;
498
499 sc = ahd->seep_config;
500 have_seeprom = ahd_acquire_seeprom(ahd);
501 if (have_seeprom) {
502 u_int start_addr;
503
504 /*
505 * Fetch VPD for this function and parse it.
506 */
507 if (bootverbose)
508 printf("%s: Reading VPD from SEEPROM...",
509 ahd_name(ahd));
510
511 /* Address is always in units of 16bit words */
512 start_addr = ((2 * sizeof(*sc))
513 + (sizeof(vpd) * (ahd->channel - 'A'))) / 2;
514
515 error = ahd_read_seeprom(ahd, (uint16_t *)&vpd,
516 start_addr, sizeof(vpd)/2,
517 /*bytestream*/TRUE);
518 if (error == 0)
519 error = ahd_parse_vpddata(ahd, &vpd);
520 if (bootverbose)
521 printf("%s: VPD parsing %s\n",
522 ahd_name(ahd),
523 error == 0 ? "successful" : "failed");
524
525 if (bootverbose)
526 printf("%s: Reading SEEPROM...", ahd_name(ahd));
527
528 /* Address is always in units of 16bit words */
529 start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A');
530
531 error = ahd_read_seeprom(ahd, (uint16_t *)sc,
532 start_addr, sizeof(*sc)/2,
533 /*bytestream*/FALSE);
534
535 if (error != 0) {
536 printf("Unable to read SEEPROM\n");
537 have_seeprom = 0;
538 } else {
539 have_seeprom = ahd_verify_cksum(sc);
540
541 if (bootverbose) {
542 if (have_seeprom == 0)
543 printf ("checksum error\n");
544 else
545 printf ("done.\n");
546 }
547 }
548 ahd_release_seeprom(ahd);
549 }
550
551 if (!have_seeprom) {
552 u_int nvram_scb;
553
554 /*
555 * Pull scratch ram settings and treat them as
556 * if they are the contents of an seeprom if
557 * the 'ADPT', 'BIOS', or 'ASPI' signature is found
558 * in SCB 0xFF. We manually compose the data as 16bit
559 * values to avoid endian issues.
560 */
561 ahd_set_scbptr(ahd, 0xFF);
562 nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET);
563 if (nvram_scb != 0xFF
564 && ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
565 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D'
566 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
567 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T')
568 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B'
569 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I'
570 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O'
571 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S')
572 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
573 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S'
574 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
575 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) {
576 uint16_t *sc_data;
577 int i;
578
579 ahd_set_scbptr(ahd, nvram_scb);
580 sc_data = (uint16_t *)sc;
581 for (i = 0; i < 64; i += 2)
582 *sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i);
583 have_seeprom = ahd_verify_cksum(sc);
584 if (have_seeprom)
585 ahd->flags |= AHD_SCB_CONFIG_USED;
586 }
587 }
588
589 #ifdef AHD_DEBUG
590 if (have_seeprom != 0
591 && (ahd_debug & AHD_DUMP_SEEPROM) != 0) {
592 uint16_t *sc_data;
593 int i;
594
595 printf("%s: Seeprom Contents:", ahd_name(ahd));
596 sc_data = (uint16_t *)sc;
597 for (i = 0; i < (sizeof(*sc)); i += 2)
598 printf("\n\t0x%.4x", sc_data[i]);
599 printf("\n");
600 }
601 #endif
602
603 if (!have_seeprom) {
604 if (bootverbose)
605 printf("%s: No SEEPROM available.\n", ahd_name(ahd));
606 ahd->flags |= AHD_USEDEFAULTS;
607 error = ahd_default_config(ahd);
608 adapter_control = CFAUTOTERM|CFSEAUTOTERM;
609 free(ahd->seep_config, M_DEVBUF);
610 ahd->seep_config = NULL;
611 } else {
612 error = ahd_parse_cfgdata(ahd, sc);
613 adapter_control = sc->adapter_control;
614 }
615 if (error != 0)
616 return (error);
617
618 ahd_configure_termination(ahd, adapter_control);
619
620 return (0);
621 }
622
623 static void
624 ahd_configure_termination(struct ahd_softc *ahd, u_int adapter_control)
625 {
626 int error;
627 u_int sxfrctl1;
628 uint8_t termctl;
629 uint32_t devconfig;
630
631 devconfig = ahd_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
632 devconfig &= ~STPWLEVEL;
633 if ((ahd->flags & AHD_STPWLEVEL_A) != 0)
634 devconfig |= STPWLEVEL;
635 if (bootverbose)
636 printf("%s: STPWLEVEL is %s\n",
637 ahd_name(ahd), (devconfig & STPWLEVEL) ? "on" : "off");
638 ahd_pci_write_config(ahd->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
639
640 /* Make sure current sensing is off. */
641 if ((ahd->flags & AHD_CURRENT_SENSING) != 0) {
642 (void)ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, 0);
643 }
644
645 /*
646 * Read to sense. Write to set.
647 */
648 error = ahd_read_flexport(ahd, FLXADDR_TERMCTL, &termctl);
649 if ((adapter_control & CFAUTOTERM) == 0) {
650 if (bootverbose)
651 printf("%s: Manual Primary Termination\n",
652 ahd_name(ahd));
653 termctl &= ~(FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH);
654 if ((adapter_control & CFSTERM) != 0)
655 termctl |= FLX_TERMCTL_ENPRILOW;
656 if ((adapter_control & CFWSTERM) != 0)
657 termctl |= FLX_TERMCTL_ENPRIHIGH;
658 } else if (error != 0) {
659 printf("%s: Primary Auto-Term Sensing failed! "
660 "Using Defaults.\n", ahd_name(ahd));
661 termctl = FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH;
662 }
663
664 if ((adapter_control & CFSEAUTOTERM) == 0) {
665 if (bootverbose)
666 printf("%s: Manual Secondary Termination\n",
667 ahd_name(ahd));
668 termctl &= ~(FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH);
669 if ((adapter_control & CFSELOWTERM) != 0)
670 termctl |= FLX_TERMCTL_ENSECLOW;
671 if ((adapter_control & CFSEHIGHTERM) != 0)
672 termctl |= FLX_TERMCTL_ENSECHIGH;
673 } else if (error != 0) {
674 printf("%s: Secondary Auto-Term Sensing failed! "
675 "Using Defaults.\n", ahd_name(ahd));
676 termctl |= FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH;
677 }
678
679 /*
680 * Now set the termination based on what we found.
681 */
682 sxfrctl1 = ahd_inb(ahd, SXFRCTL1) & ~STPWEN;
683 ahd->flags &= ~AHD_TERM_ENB_A;
684 if ((termctl & FLX_TERMCTL_ENPRILOW) != 0) {
685 ahd->flags |= AHD_TERM_ENB_A;
686 sxfrctl1 |= STPWEN;
687 }
688 /* Must set the latch once in order to be effective. */
689 ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN);
690 ahd_outb(ahd, SXFRCTL1, sxfrctl1);
691
692 error = ahd_write_flexport(ahd, FLXADDR_TERMCTL, termctl);
693 if (error != 0) {
694 printf("%s: Unable to set termination settings!\n",
695 ahd_name(ahd));
696 } else if (bootverbose) {
697 printf("%s: Primary High byte termination %sabled\n",
698 ahd_name(ahd),
699 (termctl & FLX_TERMCTL_ENPRIHIGH) ? "En" : "Dis");
700
701 printf("%s: Primary Low byte termination %sabled\n",
702 ahd_name(ahd),
703 (termctl & FLX_TERMCTL_ENPRILOW) ? "En" : "Dis");
704
705 printf("%s: Secondary High byte termination %sabled\n",
706 ahd_name(ahd),
707 (termctl & FLX_TERMCTL_ENSECHIGH) ? "En" : "Dis");
708
709 printf("%s: Secondary Low byte termination %sabled\n",
710 ahd_name(ahd),
711 (termctl & FLX_TERMCTL_ENSECLOW) ? "En" : "Dis");
712 }
713 return;
714 }
715
716 #define DPE 0x80
717 #define SSE 0x40
718 #define RMA 0x20
719 #define RTA 0x10
720 #define STA 0x08
721 #define DPR 0x01
722
723 static const char *split_status_source[] =
724 {
725 "DFF0",
726 "DFF1",
727 "OVLY",
728 "CMC",
729 };
730
731 static const char *pci_status_source[] =
732 {
733 "DFF0",
734 "DFF1",
735 "SG",
736 "CMC",
737 "OVLY",
738 "NONE",
739 "MSI",
740 "TARG"
741 };
742
743 static const char *split_status_strings[] =
744 {
745 "%s: Received split response in %s.\n",
746 "%s: Received split completion error message in %s\n",
747 "%s: Receive overrun in %s\n",
748 "%s: Count not complete in %s\n",
749 "%s: Split completion data bucket in %s\n",
750 "%s: Split completion address error in %s\n",
751 "%s: Split completion byte count error in %s\n",
752 "%s: Signaled Target-abort to early terminate a split in %s\n"
753 };
754
755 static const char *pci_status_strings[] =
756 {
757 "%s: Data Parity Error has been reported via PERR# in %s\n",
758 "%s: Target initial wait state error in %s\n",
759 "%s: Split completion read data parity error in %s\n",
760 "%s: Split completion address attribute parity error in %s\n",
761 "%s: Received a Target Abort in %s\n",
762 "%s: Received a Master Abort in %s\n",
763 "%s: Signal System Error Detected in %s\n",
764 "%s: Address or Write Phase Parity Error Detected in %s.\n"
765 };
766
767 static void
768 ahd_pci_intr(struct ahd_softc *ahd)
769 {
770 uint8_t pci_status[8];
771 ahd_mode_state saved_modes;
772 u_int pci_status1;
773 u_int intstat;
774 u_int i;
775 u_int reg;
776
777 intstat = ahd_inb(ahd, INTSTAT);
778
779 if ((intstat & SPLTINT) != 0)
780 ahd_pci_split_intr(ahd, intstat);
781
782 if ((intstat & PCIINT) == 0)
783 return;
784
785 printf("%s: PCI error Interrupt\n", ahd_name(ahd));
786 saved_modes = ahd_save_modes(ahd);
787 ahd_dump_card_state(ahd);
788 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
789 for (i = 0, reg = DF0PCISTAT; i < 8; i++, reg++) {
790
791 if (i == 5)
792 continue;
793 pci_status[i] = ahd_inb(ahd, reg);
794 /* Clear latched errors. So our interrupt deasserts. */
795 ahd_outb(ahd, reg, pci_status[i]);
796 }
797
798 for (i = 0; i < 8; i++) {
799 u_int bit;
800
801 if (i == 5)
802 continue;
803
804 for (bit = 0; bit < 8; bit++) {
805
806 if ((pci_status[i] & (0x1 << bit)) != 0) {
807 static const char *s;
808
809 s = pci_status_strings[bit];
810 if (i == 7/*TARG*/ && bit == 3)
811 s = "%s: Signaled Target Abort\n";
812 printf(s, ahd_name(ahd), pci_status_source[i]);
813 }
814 }
815 }
816 pci_status1 = ahd_pci_read_config(ahd->dev_softc,
817 PCIR_STATUS + 1, /*bytes*/1);
818 ahd_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
819 pci_status1, /*bytes*/1);
820 ahd_restore_modes(ahd, saved_modes);
821 ahd_outb(ahd, CLRINT, CLRPCIINT);
822 ahd_unpause(ahd);
823 }
824
825 static void
826 ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
827 {
828 uint8_t split_status[4];
829 uint8_t split_status1[4];
830 uint8_t sg_split_status[2];
831 uint8_t sg_split_status1[2];
832 ahd_mode_state saved_modes;
833 u_int i;
834 uint16_t pcix_status;
835
836 /*
837 * Check for splits in all modes. Modes 0 and 1
838 * additionally have SG engine splits to look at.
839 */
840 pcix_status = ahd_pci_read_config(ahd->dev_softc, PCIXR_STATUS,
841 /*bytes*/2);
842 printf("%s: PCI Split Interrupt - PCI-X status = 0x%x\n",
843 ahd_name(ahd), pcix_status);
844 saved_modes = ahd_save_modes(ahd);
845 for (i = 0; i < 4; i++) {
846 ahd_set_modes(ahd, i, i);
847
848 split_status[i] = ahd_inb(ahd, DCHSPLTSTAT0);
849 split_status1[i] = ahd_inb(ahd, DCHSPLTSTAT1);
850 /* Clear latched errors. So our interrupt deasserts. */
851 ahd_outb(ahd, DCHSPLTSTAT0, split_status[i]);
852 ahd_outb(ahd, DCHSPLTSTAT1, split_status1[i]);
853 if (i > 1)
854 continue;
855 sg_split_status[i] = ahd_inb(ahd, SGSPLTSTAT0);
856 sg_split_status1[i] = ahd_inb(ahd, SGSPLTSTAT1);
857 /* Clear latched errors. So our interrupt deasserts. */
858 ahd_outb(ahd, SGSPLTSTAT0, sg_split_status[i]);
859 ahd_outb(ahd, SGSPLTSTAT1, sg_split_status1[i]);
860 }
861
862 for (i = 0; i < 4; i++) {
863 u_int bit;
864
865 for (bit = 0; bit < 8; bit++) {
866
867 if ((split_status[i] & (0x1 << bit)) != 0) {
868 static const char *s;
869
870 s = split_status_strings[bit];
871 printf(s, ahd_name(ahd),
872 split_status_source[i]);
873 }
874
875 if (i > 1)
876 continue;
877
878 if ((sg_split_status[i] & (0x1 << bit)) != 0) {
879 static const char *s;
880
881 s = split_status_strings[bit];
882 printf(s, ahd_name(ahd), "SG");
883 }
884 }
885 }
886 /*
887 * Clear PCI-X status bits.
888 */
889 ahd_pci_write_config(ahd->dev_softc, PCIXR_STATUS,
890 pcix_status, /*bytes*/2);
891 ahd_outb(ahd, CLRINT, CLRSPLTINT);
892 ahd_restore_modes(ahd, saved_modes);
893 }
894
895 static int
896 ahd_aic7901_setup(struct ahd_softc *ahd)
897 {
898
899 ahd->chip = AHD_AIC7901;
900 ahd->features = AHD_AIC7901_FE;
901 return (ahd_aic790X_setup(ahd));
902 }
903
904 static int
905 ahd_aic7901A_setup(struct ahd_softc *ahd)
906 {
907
908 ahd->chip = AHD_AIC7901A;
909 ahd->features = AHD_AIC7901A_FE;
910 return (ahd_aic790X_setup(ahd));
911 }
912
913 static int
914 ahd_aic7902_setup(struct ahd_softc *ahd)
915 {
916 ahd->chip = AHD_AIC7902;
917 ahd->features = AHD_AIC7902_FE;
918 return (ahd_aic790X_setup(ahd));
919 }
920
921 static int
922 ahd_aic790X_setup(struct ahd_softc *ahd)
923 {
924 ahd_dev_softc_t pci;
925 u_int rev;
926
927 pci = ahd->dev_softc;
928 rev = ahd_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
929 if (rev < ID_AIC7902_PCI_REV_A4) {
930 printf("%s: Unable to attach to unsupported chip revision %d\n",
931 ahd_name(ahd), rev);
932 ahd_pci_write_config(pci, PCIR_COMMAND, 0, /*bytes*/2);
933 return (ENXIO);
934 }
935 ahd->channel = ahd_get_pci_function(pci) + 'A';
936 if (rev < ID_AIC7902_PCI_REV_B0) {
937 /*
938 * Enable A series workarounds.
939 */
940 ahd->bugs |= AHD_SENT_SCB_UPDATE_BUG|AHD_ABORT_LQI_BUG
941 | AHD_PKT_BITBUCKET_BUG|AHD_LONG_SETIMO_BUG
942 | AHD_NLQICRC_DELAYED_BUG|AHD_SCSIRST_BUG
943 | AHD_LQO_ATNO_BUG|AHD_AUTOFLUSH_BUG
944 | AHD_CLRLQO_AUTOCLR_BUG|AHD_PCIX_MMAPIO_BUG
945 | AHD_PCIX_CHIPRST_BUG|AHD_PCIX_SCBRAM_RD_BUG
946 | AHD_PKTIZED_STATUS_BUG|AHD_PKT_LUN_BUG
947 | AHD_MDFF_WSCBPTR_BUG|AHD_REG_SLOW_SETTLE_BUG
948 | AHD_SET_MODE_BUG|AHD_BUSFREEREV_BUG
949 | AHD_NONPACKFIFO_BUG|AHD_PACED_NEGTABLE_BUG
950 | AHD_FAINT_LED_BUG;
951
952 /*
953 * IO Cell paramter setup.
954 */
955 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
956
957 if ((ahd->flags & AHD_HP_BOARD) == 0)
958 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVA);
959 } else {
960 /* This is revision B and newer. */
961 extern uint32_t aic79xx_slowcrc;
962 u_int devconfig1;
963
964 ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS
965 | AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY
966 | AHD_BUSFREEREV_BUG;
967 ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
968
969 /* If the user requested the the SLOWCRC bit to be set. */
970 if (aic79xx_slowcrc)
971 ahd->features |= AHD_AIC79XXB_SLOWCRC;
972
973 /*
974 * Some issues have been resolved in the 7901B.
975 */
976 if ((ahd->features & AHD_MULTI_FUNC) != 0)
977 ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG;
978
979 /*
980 * IO Cell paramter setup.
981 */
982 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
983 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);
984 AHD_SET_AMPLITUDE(ahd, AHD_AMPLITUDE_DEF);
985
986 /*
987 * Set the PREQDIS bit for H2B which disables some workaround
988 * that doesn't work on regular PCI busses.
989 * XXX - Find out exactly what this does from the hardware
990 * folks!
991 */
992 devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
993 ahd_pci_write_config(pci, DEVCONFIG1,
994 devconfig1|PREQDIS, /*bytes*/1);
995 devconfig1 = ahd_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
996 }
997
998 return (0);
999 }
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree