This source file includes following definitions.
- sil_bmdma_stop
- sil_bmdma_setup
- sil_bmdma_start
- sil_fill_sg
- sil_qc_prep
- sil_get_device_cache_line
- sil_set_mode
- sil_scr_addr
- sil_scr_read
- sil_scr_write
- sil_host_intr
- sil_interrupt
- sil_freeze
- sil_thaw
- sil_dev_config
- sil_init_controller
- sil_broken_system_poweroff
- sil_init_one
- sil_pci_device_resume
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21 #include <linux/kernel.h>
22 #include <linux/module.h>
23 #include <linux/pci.h>
24 #include <linux/blkdev.h>
25 #include <linux/delay.h>
26 #include <linux/interrupt.h>
27 #include <linux/device.h>
28 #include <scsi/scsi_host.h>
29 #include <linux/libata.h>
30 #include <linux/dmi.h>
31
32 #define DRV_NAME "sata_sil"
33 #define DRV_VERSION "2.4"
34
35 #define SIL_DMA_BOUNDARY 0x7fffffffUL
36
37 enum {
38 SIL_MMIO_BAR = 5,
39
40
41
42
43 SIL_FLAG_NO_SATA_IRQ = (1 << 28),
44 SIL_FLAG_RERR_ON_DMA_ACT = (1 << 29),
45 SIL_FLAG_MOD15WRITE = (1 << 30),
46
47 SIL_DFL_PORT_FLAGS = ATA_FLAG_SATA,
48
49
50
51
52 sil_3112 = 0,
53 sil_3112_no_sata_irq = 1,
54 sil_3512 = 2,
55 sil_3114 = 3,
56
57
58
59
60 SIL_SYSCFG = 0x48,
61
62
63
64
65
66 SIL_MASK_IDE0_INT = (1 << 22),
67 SIL_MASK_IDE1_INT = (1 << 23),
68 SIL_MASK_IDE2_INT = (1 << 24),
69 SIL_MASK_IDE3_INT = (1 << 25),
70 SIL_MASK_2PORT = SIL_MASK_IDE0_INT | SIL_MASK_IDE1_INT,
71 SIL_MASK_4PORT = SIL_MASK_2PORT |
72 SIL_MASK_IDE2_INT | SIL_MASK_IDE3_INT,
73
74
75 SIL_INTR_STEERING = (1 << 1),
76
77 SIL_DMA_ENABLE = (1 << 0),
78 SIL_DMA_RDWR = (1 << 3),
79 SIL_DMA_SATA_IRQ = (1 << 4),
80 SIL_DMA_ACTIVE = (1 << 16),
81 SIL_DMA_ERROR = (1 << 17),
82 SIL_DMA_COMPLETE = (1 << 18),
83 SIL_DMA_N_SATA_IRQ = (1 << 6),
84 SIL_DMA_N_ACTIVE = (1 << 24),
85 SIL_DMA_N_ERROR = (1 << 25),
86 SIL_DMA_N_COMPLETE = (1 << 26),
87
88
89 SIL_SIEN_N = (1 << 16),
90
91
92
93
94 SIL_QUIRK_MOD15WRITE = (1 << 0),
95 SIL_QUIRK_UDMA5MAX = (1 << 1),
96 };
97
98 static int sil_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
99 #ifdef CONFIG_PM_SLEEP
100 static int sil_pci_device_resume(struct pci_dev *pdev);
101 #endif
102 static void sil_dev_config(struct ata_device *dev);
103 static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
104 static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
105 static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed);
106 static void sil_qc_prep(struct ata_queued_cmd *qc);
107 static void sil_bmdma_setup(struct ata_queued_cmd *qc);
108 static void sil_bmdma_start(struct ata_queued_cmd *qc);
109 static void sil_bmdma_stop(struct ata_queued_cmd *qc);
110 static void sil_freeze(struct ata_port *ap);
111 static void sil_thaw(struct ata_port *ap);
112
113
114 static const struct pci_device_id sil_pci_tbl[] = {
115 { PCI_VDEVICE(CMD, 0x3112), sil_3112 },
116 { PCI_VDEVICE(CMD, 0x0240), sil_3112 },
117 { PCI_VDEVICE(CMD, 0x3512), sil_3512 },
118 { PCI_VDEVICE(CMD, 0x3114), sil_3114 },
119 { PCI_VDEVICE(ATI, 0x436e), sil_3112 },
120 { PCI_VDEVICE(ATI, 0x4379), sil_3112_no_sata_irq },
121 { PCI_VDEVICE(ATI, 0x437a), sil_3112_no_sata_irq },
122
123 { }
124 };
125
126
127
128 static const struct sil_drivelist {
129 const char *product;
130 unsigned int quirk;
131 } sil_blacklist [] = {
132 { "ST320012AS", SIL_QUIRK_MOD15WRITE },
133 { "ST330013AS", SIL_QUIRK_MOD15WRITE },
134 { "ST340017AS", SIL_QUIRK_MOD15WRITE },
135 { "ST360015AS", SIL_QUIRK_MOD15WRITE },
136 { "ST380023AS", SIL_QUIRK_MOD15WRITE },
137 { "ST3120023AS", SIL_QUIRK_MOD15WRITE },
138 { "ST340014ASL", SIL_QUIRK_MOD15WRITE },
139 { "ST360014ASL", SIL_QUIRK_MOD15WRITE },
140 { "ST380011ASL", SIL_QUIRK_MOD15WRITE },
141 { "ST3120022ASL", SIL_QUIRK_MOD15WRITE },
142 { "ST3160021ASL", SIL_QUIRK_MOD15WRITE },
143 { "TOSHIBA MK2561GSYN", SIL_QUIRK_MOD15WRITE },
144 { "Maxtor 4D060H3", SIL_QUIRK_UDMA5MAX },
145 { }
146 };
147
148 static struct pci_driver sil_pci_driver = {
149 .name = DRV_NAME,
150 .id_table = sil_pci_tbl,
151 .probe = sil_init_one,
152 .remove = ata_pci_remove_one,
153 #ifdef CONFIG_PM_SLEEP
154 .suspend = ata_pci_device_suspend,
155 .resume = sil_pci_device_resume,
156 #endif
157 };
158
159 static struct scsi_host_template sil_sht = {
160 ATA_BASE_SHT(DRV_NAME),
161
162
163
164 .dma_boundary = SIL_DMA_BOUNDARY,
165 .sg_tablesize = ATA_MAX_PRD
166 };
167
168 static struct ata_port_operations sil_ops = {
169 .inherits = &ata_bmdma32_port_ops,
170 .dev_config = sil_dev_config,
171 .set_mode = sil_set_mode,
172 .bmdma_setup = sil_bmdma_setup,
173 .bmdma_start = sil_bmdma_start,
174 .bmdma_stop = sil_bmdma_stop,
175 .qc_prep = sil_qc_prep,
176 .freeze = sil_freeze,
177 .thaw = sil_thaw,
178 .scr_read = sil_scr_read,
179 .scr_write = sil_scr_write,
180 };
181
182 static const struct ata_port_info sil_port_info[] = {
183
184 {
185 .flags = SIL_DFL_PORT_FLAGS | SIL_FLAG_MOD15WRITE,
186 .pio_mask = ATA_PIO4,
187 .mwdma_mask = ATA_MWDMA2,
188 .udma_mask = ATA_UDMA5,
189 .port_ops = &sil_ops,
190 },
191
192 {
193 .flags = SIL_DFL_PORT_FLAGS | SIL_FLAG_MOD15WRITE |
194 SIL_FLAG_NO_SATA_IRQ,
195 .pio_mask = ATA_PIO4,
196 .mwdma_mask = ATA_MWDMA2,
197 .udma_mask = ATA_UDMA5,
198 .port_ops = &sil_ops,
199 },
200
201 {
202 .flags = SIL_DFL_PORT_FLAGS | SIL_FLAG_RERR_ON_DMA_ACT,
203 .pio_mask = ATA_PIO4,
204 .mwdma_mask = ATA_MWDMA2,
205 .udma_mask = ATA_UDMA5,
206 .port_ops = &sil_ops,
207 },
208
209 {
210 .flags = SIL_DFL_PORT_FLAGS | SIL_FLAG_RERR_ON_DMA_ACT,
211 .pio_mask = ATA_PIO4,
212 .mwdma_mask = ATA_MWDMA2,
213 .udma_mask = ATA_UDMA5,
214 .port_ops = &sil_ops,
215 },
216 };
217
218
219
220 static const struct {
221 unsigned long tf;
222 unsigned long ctl;
223 unsigned long bmdma;
224 unsigned long bmdma2;
225 unsigned long fifo_cfg;
226 unsigned long scr;
227 unsigned long sien;
228 unsigned long xfer_mode;
229 unsigned long sfis_cfg;
230 } sil_port[] = {
231
232
233 { 0x80, 0x8A, 0x0, 0x10, 0x40, 0x100, 0x148, 0xb4, 0x14c },
234 { 0xC0, 0xCA, 0x8, 0x18, 0x44, 0x180, 0x1c8, 0xf4, 0x1cc },
235 { 0x280, 0x28A, 0x200, 0x210, 0x240, 0x300, 0x348, 0x2b4, 0x34c },
236 { 0x2C0, 0x2CA, 0x208, 0x218, 0x244, 0x380, 0x3c8, 0x2f4, 0x3cc },
237
238 };
239
240 MODULE_AUTHOR("Jeff Garzik");
241 MODULE_DESCRIPTION("low-level driver for Silicon Image SATA controller");
242 MODULE_LICENSE("GPL");
243 MODULE_DEVICE_TABLE(pci, sil_pci_tbl);
244 MODULE_VERSION(DRV_VERSION);
245
246 static int slow_down;
247 module_param(slow_down, int, 0444);
248 MODULE_PARM_DESC(slow_down, "Sledgehammer used to work around random problems, by limiting commands to 15 sectors (0=off, 1=on)");
249
250
251 static void sil_bmdma_stop(struct ata_queued_cmd *qc)
252 {
253 struct ata_port *ap = qc->ap;
254 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
255 void __iomem *bmdma2 = mmio_base + sil_port[ap->port_no].bmdma2;
256
257
258 iowrite8(0, bmdma2);
259
260
261 ata_sff_dma_pause(ap);
262 }
263
264 static void sil_bmdma_setup(struct ata_queued_cmd *qc)
265 {
266 struct ata_port *ap = qc->ap;
267 void __iomem *bmdma = ap->ioaddr.bmdma_addr;
268
269
270 iowrite32(ap->bmdma_prd_dma, bmdma + ATA_DMA_TABLE_OFS);
271
272
273 ap->ops->sff_exec_command(ap, &qc->tf);
274 }
275
276 static void sil_bmdma_start(struct ata_queued_cmd *qc)
277 {
278 unsigned int rw = (qc->tf.flags & ATA_TFLAG_WRITE);
279 struct ata_port *ap = qc->ap;
280 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
281 void __iomem *bmdma2 = mmio_base + sil_port[ap->port_no].bmdma2;
282 u8 dmactl = ATA_DMA_START;
283
284
285
286
287 if (!rw)
288 dmactl |= ATA_DMA_WR;
289 iowrite8(dmactl, bmdma2);
290 }
291
292
293 static void sil_fill_sg(struct ata_queued_cmd *qc)
294 {
295 struct scatterlist *sg;
296 struct ata_port *ap = qc->ap;
297 struct ata_bmdma_prd *prd, *last_prd = NULL;
298 unsigned int si;
299
300 prd = &ap->bmdma_prd[0];
301 for_each_sg(qc->sg, sg, qc->n_elem, si) {
302
303
304
305 u32 addr = (u32) sg_dma_address(sg);
306 u32 sg_len = sg_dma_len(sg);
307
308 prd->addr = cpu_to_le32(addr);
309 prd->flags_len = cpu_to_le32(sg_len);
310 VPRINTK("PRD[%u] = (0x%X, 0x%X)\n", si, addr, sg_len);
311
312 last_prd = prd;
313 prd++;
314 }
315
316 if (likely(last_prd))
317 last_prd->flags_len |= cpu_to_le32(ATA_PRD_EOT);
318 }
319
320 static void sil_qc_prep(struct ata_queued_cmd *qc)
321 {
322 if (!(qc->flags & ATA_QCFLAG_DMAMAP))
323 return;
324
325 sil_fill_sg(qc);
326 }
327
328 static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
329 {
330 u8 cache_line = 0;
331 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line);
332 return cache_line;
333 }
334
335
336
337
338
339
340
341
342
343
344 static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed)
345 {
346 struct ata_port *ap = link->ap;
347 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
348 void __iomem *addr = mmio_base + sil_port[ap->port_no].xfer_mode;
349 struct ata_device *dev;
350 u32 tmp, dev_mode[2] = { };
351 int rc;
352
353 rc = ata_do_set_mode(link, r_failed);
354 if (rc)
355 return rc;
356
357 ata_for_each_dev(dev, link, ALL) {
358 if (!ata_dev_enabled(dev))
359 dev_mode[dev->devno] = 0;
360 else if (dev->flags & ATA_DFLAG_PIO)
361 dev_mode[dev->devno] = 1;
362 else
363 dev_mode[dev->devno] = 3;
364
365 }
366
367 tmp = readl(addr);
368 tmp &= ~((1<<5) | (1<<4) | (1<<1) | (1<<0));
369 tmp |= dev_mode[0];
370 tmp |= (dev_mode[1] << 4);
371 writel(tmp, addr);
372 readl(addr);
373 return 0;
374 }
375
376 static inline void __iomem *sil_scr_addr(struct ata_port *ap,
377 unsigned int sc_reg)
378 {
379 void __iomem *offset = ap->ioaddr.scr_addr;
380
381 switch (sc_reg) {
382 case SCR_STATUS:
383 return offset + 4;
384 case SCR_ERROR:
385 return offset + 8;
386 case SCR_CONTROL:
387 return offset;
388 default:
389
390 break;
391 }
392
393 return NULL;
394 }
395
396 static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
397 {
398 void __iomem *mmio = sil_scr_addr(link->ap, sc_reg);
399
400 if (mmio) {
401 *val = readl(mmio);
402 return 0;
403 }
404 return -EINVAL;
405 }
406
407 static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
408 {
409 void __iomem *mmio = sil_scr_addr(link->ap, sc_reg);
410
411 if (mmio) {
412 writel(val, mmio);
413 return 0;
414 }
415 return -EINVAL;
416 }
417
418 static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
419 {
420 struct ata_eh_info *ehi = &ap->link.eh_info;
421 struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
422 u8 status;
423
424 if (unlikely(bmdma2 & SIL_DMA_SATA_IRQ)) {
425 u32 serror = 0xffffffff;
426
427
428
429
430
431 sil_scr_read(&ap->link, SCR_ERROR, &serror);
432 sil_scr_write(&ap->link, SCR_ERROR, serror);
433
434
435
436
437 if (serror & SERR_PHYRDY_CHG) {
438 ap->link.eh_info.serror |= serror;
439 goto freeze;
440 }
441
442 if (!(bmdma2 & SIL_DMA_COMPLETE))
443 return;
444 }
445
446 if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) {
447
448 ap->ops->sff_check_status(ap);
449 return;
450 }
451
452
453 switch (ap->hsm_task_state) {
454 case HSM_ST_FIRST:
455
456
457
458
459
460
461
462
463 if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
464 goto err_hsm;
465 break;
466 case HSM_ST_LAST:
467 if (ata_is_dma(qc->tf.protocol)) {
468
469 ap->ops->bmdma_stop(qc);
470
471 if (bmdma2 & SIL_DMA_ERROR) {
472 qc->err_mask |= AC_ERR_HOST_BUS;
473 ap->hsm_task_state = HSM_ST_ERR;
474 }
475 }
476 break;
477 case HSM_ST:
478 break;
479 default:
480 goto err_hsm;
481 }
482
483
484 status = ap->ops->sff_check_status(ap);
485 if (unlikely(status & ATA_BUSY))
486 goto err_hsm;
487
488
489 ata_bmdma_irq_clear(ap);
490
491
492 ata_sff_hsm_move(ap, qc, status, 0);
493
494 if (unlikely(qc->err_mask) && ata_is_dma(qc->tf.protocol))
495 ata_ehi_push_desc(ehi, "BMDMA2 stat 0x%x", bmdma2);
496
497 return;
498
499 err_hsm:
500 qc->err_mask |= AC_ERR_HSM;
501 freeze:
502 ata_port_freeze(ap);
503 }
504
505 static irqreturn_t sil_interrupt(int irq, void *dev_instance)
506 {
507 struct ata_host *host = dev_instance;
508 void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
509 int handled = 0;
510 int i;
511
512 spin_lock(&host->lock);
513
514 for (i = 0; i < host->n_ports; i++) {
515 struct ata_port *ap = host->ports[i];
516 u32 bmdma2 = readl(mmio_base + sil_port[ap->port_no].bmdma2);
517
518
519 if (ap->flags & SIL_FLAG_NO_SATA_IRQ)
520 bmdma2 &= ~SIL_DMA_SATA_IRQ;
521
522 if (bmdma2 == 0xffffffff ||
523 !(bmdma2 & (SIL_DMA_COMPLETE | SIL_DMA_SATA_IRQ)))
524 continue;
525
526 sil_host_intr(ap, bmdma2);
527 handled = 1;
528 }
529
530 spin_unlock(&host->lock);
531
532 return IRQ_RETVAL(handled);
533 }
534
535 static void sil_freeze(struct ata_port *ap)
536 {
537 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
538 u32 tmp;
539
540
541 writel(0, mmio_base + sil_port[ap->port_no].sien);
542
543
544 tmp = readl(mmio_base + SIL_SYSCFG);
545 tmp |= SIL_MASK_IDE0_INT << ap->port_no;
546 writel(tmp, mmio_base + SIL_SYSCFG);
547 readl(mmio_base + SIL_SYSCFG);
548
549
550
551
552
553
554 iowrite8(ioread8(ap->ioaddr.bmdma_addr) & ~SIL_DMA_ENABLE,
555 ap->ioaddr.bmdma_addr);
556
557
558
559
560 ioread8(ap->ioaddr.bmdma_addr);
561 }
562
563 static void sil_thaw(struct ata_port *ap)
564 {
565 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
566 u32 tmp;
567
568
569 ap->ops->sff_check_status(ap);
570 ata_bmdma_irq_clear(ap);
571
572
573 if (!(ap->flags & SIL_FLAG_NO_SATA_IRQ))
574 writel(SIL_SIEN_N, mmio_base + sil_port[ap->port_no].sien);
575
576
577 tmp = readl(mmio_base + SIL_SYSCFG);
578 tmp &= ~(SIL_MASK_IDE0_INT << ap->port_no);
579 writel(tmp, mmio_base + SIL_SYSCFG);
580 }
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608
609
610 static void sil_dev_config(struct ata_device *dev)
611 {
612 struct ata_port *ap = dev->link->ap;
613 int print_info = ap->link.eh_context.i.flags & ATA_EHI_PRINTINFO;
614 unsigned int n, quirks = 0;
615 unsigned char model_num[ATA_ID_PROD_LEN + 1];
616
617
618 dev->horkage |= ATA_HORKAGE_NOTRIM;
619
620 ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
621
622 for (n = 0; sil_blacklist[n].product; n++)
623 if (!strcmp(sil_blacklist[n].product, model_num)) {
624 quirks = sil_blacklist[n].quirk;
625 break;
626 }
627
628
629 if (slow_down ||
630 ((ap->flags & SIL_FLAG_MOD15WRITE) &&
631 (quirks & SIL_QUIRK_MOD15WRITE))) {
632 if (print_info)
633 ata_dev_info(dev,
634 "applying Seagate errata fix (mod15write workaround)\n");
635 dev->max_sectors = 15;
636 return;
637 }
638
639
640 if (quirks & SIL_QUIRK_UDMA5MAX) {
641 if (print_info)
642 ata_dev_info(dev, "applying Maxtor errata fix %s\n",
643 model_num);
644 dev->udma_mask &= ATA_UDMA5;
645 return;
646 }
647 }
648
649 static void sil_init_controller(struct ata_host *host)
650 {
651 struct pci_dev *pdev = to_pci_dev(host->dev);
652 void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
653 u8 cls;
654 u32 tmp;
655 int i;
656
657
658 cls = sil_get_device_cache_line(pdev);
659 if (cls) {
660 cls >>= 3;
661 cls++;
662 for (i = 0; i < host->n_ports; i++)
663 writew(cls << 8 | cls,
664 mmio_base + sil_port[i].fifo_cfg);
665 } else
666 dev_warn(&pdev->dev,
667 "cache line size not set. Driver may not function\n");
668
669
670 if (host->ports[0]->flags & SIL_FLAG_RERR_ON_DMA_ACT) {
671 int cnt;
672
673 for (i = 0, cnt = 0; i < host->n_ports; i++) {
674 tmp = readl(mmio_base + sil_port[i].sfis_cfg);
675 if ((tmp & 0x3) != 0x01)
676 continue;
677 if (!cnt)
678 dev_info(&pdev->dev,
679 "Applying R_ERR on DMA activate FIS errata fix\n");
680 writel(tmp & ~0x3, mmio_base + sil_port[i].sfis_cfg);
681 cnt++;
682 }
683 }
684
685 if (host->n_ports == 4) {
686
687 tmp = readl(mmio_base + sil_port[2].bmdma);
688 if ((tmp & SIL_INTR_STEERING) == 0)
689 writel(tmp | SIL_INTR_STEERING,
690 mmio_base + sil_port[2].bmdma);
691 }
692 }
693
694 static bool sil_broken_system_poweroff(struct pci_dev *pdev)
695 {
696 static const struct dmi_system_id broken_systems[] = {
697 {
698 .ident = "HP Compaq nx6325",
699 .matches = {
700 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
701 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
702 },
703
704 .driver_data = (void *)0x12UL,
705 },
706
707 { }
708 };
709 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
710
711 if (dmi) {
712 unsigned long slot = (unsigned long)dmi->driver_data;
713
714 return slot == PCI_SLOT(pdev->devfn);
715 }
716
717 return false;
718 }
719
720 static int sil_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
721 {
722 int board_id = ent->driver_data;
723 struct ata_port_info pi = sil_port_info[board_id];
724 const struct ata_port_info *ppi[] = { &pi, NULL };
725 struct ata_host *host;
726 void __iomem *mmio_base;
727 int n_ports, rc;
728 unsigned int i;
729
730 ata_print_version_once(&pdev->dev, DRV_VERSION);
731
732
733 n_ports = 2;
734 if (board_id == sil_3114)
735 n_ports = 4;
736
737 if (sil_broken_system_poweroff(pdev)) {
738 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN |
739 ATA_FLAG_NO_HIBERNATE_SPINDOWN;
740 dev_info(&pdev->dev, "quirky BIOS, skipping spindown "
741 "on poweroff and hibernation\n");
742 }
743
744 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
745 if (!host)
746 return -ENOMEM;
747
748
749 rc = pcim_enable_device(pdev);
750 if (rc)
751 return rc;
752
753 rc = pcim_iomap_regions(pdev, 1 << SIL_MMIO_BAR, DRV_NAME);
754 if (rc == -EBUSY)
755 pcim_pin_device(pdev);
756 if (rc)
757 return rc;
758 host->iomap = pcim_iomap_table(pdev);
759
760 rc = dma_set_mask_and_coherent(&pdev->dev, ATA_DMA_MASK);
761 if (rc)
762 return rc;
763
764 mmio_base = host->iomap[SIL_MMIO_BAR];
765
766 for (i = 0; i < host->n_ports; i++) {
767 struct ata_port *ap = host->ports[i];
768 struct ata_ioports *ioaddr = &ap->ioaddr;
769
770 ioaddr->cmd_addr = mmio_base + sil_port[i].tf;
771 ioaddr->altstatus_addr =
772 ioaddr->ctl_addr = mmio_base + sil_port[i].ctl;
773 ioaddr->bmdma_addr = mmio_base + sil_port[i].bmdma;
774 ioaddr->scr_addr = mmio_base + sil_port[i].scr;
775 ata_sff_std_ports(ioaddr);
776
777 ata_port_pbar_desc(ap, SIL_MMIO_BAR, -1, "mmio");
778 ata_port_pbar_desc(ap, SIL_MMIO_BAR, sil_port[i].tf, "tf");
779 }
780
781
782 sil_init_controller(host);
783
784 pci_set_master(pdev);
785 return ata_host_activate(host, pdev->irq, sil_interrupt, IRQF_SHARED,
786 &sil_sht);
787 }
788
789 #ifdef CONFIG_PM_SLEEP
790 static int sil_pci_device_resume(struct pci_dev *pdev)
791 {
792 struct ata_host *host = pci_get_drvdata(pdev);
793 int rc;
794
795 rc = ata_pci_device_do_resume(pdev);
796 if (rc)
797 return rc;
798
799 sil_init_controller(host);
800 ata_host_resume(host);
801
802 return 0;
803 }
804 #endif
805
806 module_pci_driver(sil_pci_driver);