1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * sata_sil.c - Silicon Image SATA
5 * Maintained by: Tejun Heo <tj@kernel.org>
6 * Please ALWAYS copy linux-ide@vger.kernel.org
9 * Copyright 2003-2005 Red Hat, Inc.
10 * Copyright 2003 Benjamin Herrenschmidt
12 * libata documentation is available via 'make {ps|pdf}docs',
13 * as Documentation/driver-api/libata.rst
15 * Documentation for SiI 3112:
16 * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
18 * Other errata and documentation available under NDA.
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>
32 #define DRV_NAME "sata_sil"
33 #define DRV_VERSION "2.4"
35 #define SIL_DMA_BOUNDARY 0x7fffffffUL
43 SIL_FLAG_NO_SATA_IRQ = (1 << 28),
44 SIL_FLAG_RERR_ON_DMA_ACT = (1 << 29),
45 SIL_FLAG_MOD15WRITE = (1 << 30),
47 SIL_DFL_PORT_FLAGS = ATA_FLAG_SATA,
53 sil_3112_no_sata_irq = 1,
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,
75 SIL_INTR_STEERING = (1 << 1),
77 SIL_DMA_ENABLE = (1 << 0), /* DMA run switch */
78 SIL_DMA_RDWR = (1 << 3), /* DMA Rd-Wr */
79 SIL_DMA_SATA_IRQ = (1 << 4), /* OR of all SATA IRQs */
80 SIL_DMA_ACTIVE = (1 << 16), /* DMA running */
81 SIL_DMA_ERROR = (1 << 17), /* PCI bus error */
82 SIL_DMA_COMPLETE = (1 << 18), /* cmd complete / IRQ pending */
83 SIL_DMA_N_SATA_IRQ = (1 << 6), /* SATA_IRQ for the next channel */
84 SIL_DMA_N_ACTIVE = (1 << 24), /* ACTIVE for the next channel */
85 SIL_DMA_N_ERROR = (1 << 25), /* ERROR for the next channel */
86 SIL_DMA_N_COMPLETE = (1 << 26), /* COMPLETE for the next channel */
89 SIL_SIEN_N = (1 << 16), /* triggered by SError.N */
94 SIL_QUIRK_MOD15WRITE = (1 << 0),
95 SIL_QUIRK_UDMA5MAX = (1 << 1),
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);
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 enum ata_completion_errors 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);
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 },
123 { } /* terminate list */
127 /* TODO firmware versions should be added - eric */
128 static const struct sil_drivelist {
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 },
148 static struct pci_driver sil_pci_driver = {
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,
159 static const struct scsi_host_template sil_sht = {
160 ATA_BASE_SHT(DRV_NAME),
161 /** These controllers support Large Block Transfer which allows
162 transfer chunks up to 2GB and which cross 64KB boundaries,
163 therefore the DMA limits are more relaxed than standard ATA SFF. */
164 .dma_boundary = SIL_DMA_BOUNDARY,
165 .sg_tablesize = ATA_MAX_PRD
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,
178 .scr_read = sil_scr_read,
179 .scr_write = sil_scr_write,
182 static const struct ata_port_info sil_port_info[] = {
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,
191 /* sil_3112_no_sata_irq */
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,
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,
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,
218 /* per-port register offsets */
219 /* TODO: we can probably calculate rather than use a table */
220 static const struct {
221 unsigned long tf; /* ATA taskfile register block */
222 unsigned long ctl; /* ATA control/altstatus register block */
223 unsigned long bmdma; /* DMA register block */
224 unsigned long bmdma2; /* DMA register block #2 */
225 unsigned long fifo_cfg; /* FIFO Valid Byte Count and Control */
226 unsigned long scr; /* SATA control register block */
227 unsigned long sien; /* SATA Interrupt Enable register */
228 unsigned long xfer_mode;/* data transfer mode register */
229 unsigned long sfis_cfg; /* SATA FIS reception config register */
232 /* tf ctl bmdma bmdma2 fifo scr sien mode sfis */
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 },
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);
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)");
251 static void sil_bmdma_stop(struct ata_queued_cmd *qc)
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;
257 /* clear start/stop bit - can safely always write 0 */
260 /* one-PIO-cycle guaranteed wait, per spec, for HDMA1:0 transition */
261 ata_sff_dma_pause(ap);
264 static void sil_bmdma_setup(struct ata_queued_cmd *qc)
266 struct ata_port *ap = qc->ap;
267 void __iomem *bmdma = ap->ioaddr.bmdma_addr;
269 /* load PRD table addr. */
270 iowrite32(ap->bmdma_prd_dma, bmdma + ATA_DMA_TABLE_OFS);
272 /* issue r/w command */
273 ap->ops->sff_exec_command(ap, &qc->tf);
276 static void sil_bmdma_start(struct ata_queued_cmd *qc)
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;
284 /* set transfer direction, start host DMA transaction
285 Note: For Large Block Transfer to work, the DMA must be started
286 using the bmdma2 register. */
288 dmactl |= ATA_DMA_WR;
289 iowrite8(dmactl, bmdma2);
292 /* The way God intended PCI IDE scatter/gather lists to look and behave... */
293 static void sil_fill_sg(struct ata_queued_cmd *qc)
295 struct scatterlist *sg;
296 struct ata_port *ap = qc->ap;
297 struct ata_bmdma_prd *prd, *last_prd = NULL;
300 prd = &ap->bmdma_prd[0];
301 for_each_sg(qc->sg, sg, qc->n_elem, si) {
302 /* Note h/w doesn't support 64-bit, so we unconditionally
303 * truncate dma_addr_t to u32.
305 u32 addr = (u32) sg_dma_address(sg);
306 u32 sg_len = sg_dma_len(sg);
308 prd->addr = cpu_to_le32(addr);
309 prd->flags_len = cpu_to_le32(sg_len);
315 if (likely(last_prd))
316 last_prd->flags_len |= cpu_to_le32(ATA_PRD_EOT);
319 static enum ata_completion_errors sil_qc_prep(struct ata_queued_cmd *qc)
321 if (!(qc->flags & ATA_QCFLAG_DMAMAP))
329 static unsigned char sil_get_device_cache_line(struct pci_dev *pdev)
332 pci_read_config_byte(pdev, PCI_CACHE_LINE_SIZE, &cache_line);
337 * sil_set_mode - wrap set_mode functions
338 * @link: link to set up
339 * @r_failed: returned device when we fail
341 * Wrap the libata method for device setup as after the setup we need
342 * to inspect the results and do some configuration work
345 static int sil_set_mode(struct ata_link *link, struct ata_device **r_failed)
347 struct ata_port *ap = link->ap;
348 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
349 void __iomem *addr = mmio_base + sil_port[ap->port_no].xfer_mode;
350 struct ata_device *dev;
351 u32 tmp, dev_mode[2] = { };
354 rc = ata_do_set_mode(link, r_failed);
358 ata_for_each_dev(dev, link, ALL) {
359 if (!ata_dev_enabled(dev))
360 dev_mode[dev->devno] = 0; /* PIO0/1/2 */
361 else if (dev->flags & ATA_DFLAG_PIO)
362 dev_mode[dev->devno] = 1; /* PIO3/4 */
364 dev_mode[dev->devno] = 3; /* UDMA */
365 /* value 2 indicates MDMA */
369 tmp &= ~((1<<5) | (1<<4) | (1<<1) | (1<<0));
371 tmp |= (dev_mode[1] << 4);
373 readl(addr); /* flush */
377 static inline void __iomem *sil_scr_addr(struct ata_port *ap,
380 void __iomem *offset = ap->ioaddr.scr_addr;
397 static int sil_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
399 void __iomem *mmio = sil_scr_addr(link->ap, sc_reg);
408 static int sil_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
410 void __iomem *mmio = sil_scr_addr(link->ap, sc_reg);
419 static void sil_host_intr(struct ata_port *ap, u32 bmdma2)
421 struct ata_eh_info *ehi = &ap->link.eh_info;
422 struct ata_queued_cmd *qc = ata_qc_from_tag(ap, ap->link.active_tag);
425 if (unlikely(bmdma2 & SIL_DMA_SATA_IRQ)) {
426 u32 serror = 0xffffffff;
428 /* SIEN doesn't mask SATA IRQs on some 3112s. Those
429 * controllers continue to assert IRQ as long as
430 * SError bits are pending. Clear SError immediately.
432 sil_scr_read(&ap->link, SCR_ERROR, &serror);
433 sil_scr_write(&ap->link, SCR_ERROR, serror);
435 /* Sometimes spurious interrupts occur, double check
438 if (serror & SERR_PHYRDY_CHG) {
439 ap->link.eh_info.serror |= serror;
443 if (!(bmdma2 & SIL_DMA_COMPLETE))
447 if (unlikely(!qc || (qc->tf.flags & ATA_TFLAG_POLLING))) {
448 /* this sometimes happens, just clear IRQ */
449 ap->ops->sff_check_status(ap);
453 /* Check whether we are expecting interrupt in this state */
454 switch (ap->hsm_task_state) {
456 /* Some pre-ATAPI-4 devices assert INTRQ
457 * at this state when ready to receive CDB.
460 /* Check the ATA_DFLAG_CDB_INTR flag is enough here.
461 * The flag was turned on only for atapi devices. No
462 * need to check ata_is_atapi(qc->tf.protocol) again.
464 if (!(qc->dev->flags & ATA_DFLAG_CDB_INTR))
468 if (ata_is_dma(qc->tf.protocol)) {
469 /* clear DMA-Start bit */
470 ap->ops->bmdma_stop(qc);
472 if (bmdma2 & SIL_DMA_ERROR) {
473 qc->err_mask |= AC_ERR_HOST_BUS;
474 ap->hsm_task_state = HSM_ST_ERR;
484 /* check main status, clearing INTRQ */
485 status = ap->ops->sff_check_status(ap);
486 if (unlikely(status & ATA_BUSY))
489 /* ack bmdma irq events */
490 ata_bmdma_irq_clear(ap);
492 /* kick HSM in the ass */
493 ata_sff_hsm_move(ap, qc, status, 0);
495 if (unlikely(qc->err_mask) && ata_is_dma(qc->tf.protocol))
496 ata_ehi_push_desc(ehi, "BMDMA2 stat 0x%x", bmdma2);
501 qc->err_mask |= AC_ERR_HSM;
506 static irqreturn_t sil_interrupt(int irq, void *dev_instance)
508 struct ata_host *host = dev_instance;
509 void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
513 spin_lock(&host->lock);
515 for (i = 0; i < host->n_ports; i++) {
516 struct ata_port *ap = host->ports[i];
517 u32 bmdma2 = readl(mmio_base + sil_port[ap->port_no].bmdma2);
519 /* turn off SATA_IRQ if not supported */
520 if (ap->flags & SIL_FLAG_NO_SATA_IRQ)
521 bmdma2 &= ~SIL_DMA_SATA_IRQ;
523 if (bmdma2 == 0xffffffff ||
524 !(bmdma2 & (SIL_DMA_COMPLETE | SIL_DMA_SATA_IRQ)))
527 sil_host_intr(ap, bmdma2);
531 spin_unlock(&host->lock);
533 return IRQ_RETVAL(handled);
536 static void sil_freeze(struct ata_port *ap)
538 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
541 /* global IRQ mask doesn't block SATA IRQ, turn off explicitly */
542 writel(0, mmio_base + sil_port[ap->port_no].sien);
545 tmp = readl(mmio_base + SIL_SYSCFG);
546 tmp |= SIL_MASK_IDE0_INT << ap->port_no;
547 writel(tmp, mmio_base + SIL_SYSCFG);
548 readl(mmio_base + SIL_SYSCFG); /* flush */
550 /* Ensure DMA_ENABLE is off.
552 * This is because the controller will not give us access to the
553 * taskfile registers while a DMA is in progress
555 iowrite8(ioread8(ap->ioaddr.bmdma_addr) & ~SIL_DMA_ENABLE,
556 ap->ioaddr.bmdma_addr);
558 /* According to ata_bmdma_stop, an HDMA transition requires
559 * on PIO cycle. But we can't read a taskfile register.
561 ioread8(ap->ioaddr.bmdma_addr);
564 static void sil_thaw(struct ata_port *ap)
566 void __iomem *mmio_base = ap->host->iomap[SIL_MMIO_BAR];
570 ap->ops->sff_check_status(ap);
571 ata_bmdma_irq_clear(ap);
573 /* turn on SATA IRQ if supported */
574 if (!(ap->flags & SIL_FLAG_NO_SATA_IRQ))
575 writel(SIL_SIEN_N, mmio_base + sil_port[ap->port_no].sien);
578 tmp = readl(mmio_base + SIL_SYSCFG);
579 tmp &= ~(SIL_MASK_IDE0_INT << ap->port_no);
580 writel(tmp, mmio_base + SIL_SYSCFG);
584 * sil_dev_config - Apply device/host-specific errata fixups
585 * @dev: Device to be examined
587 * After the IDENTIFY [PACKET] DEVICE step is complete, and a
588 * device is known to be present, this function is called.
589 * We apply two errata fixups which are specific to Silicon Image,
590 * a Seagate and a Maxtor fixup.
592 * For certain Seagate devices, we must limit the maximum sectors
595 * For certain Maxtor devices, we must not program the drive
598 * Both fixups are unfairly pessimistic. As soon as I get more
599 * information on these errata, I will create a more exhaustive
600 * list, and apply the fixups to only the specific
601 * devices/hosts/firmwares that need it.
603 * 20040111 - Seagate drives affected by the Mod15Write bug are blacklisted
604 * The Maxtor quirk is in the blacklist, but I'm keeping the original
605 * pessimistic fix for the following reasons...
606 * - There seems to be less info on it, only one device gleaned off the
607 * Windows driver, maybe only one is affected. More info would be greatly
609 * - But then again UDMA5 is hardly anything to complain about
611 static void sil_dev_config(struct ata_device *dev)
613 struct ata_port *ap = dev->link->ap;
614 int print_info = ap->link.eh_context.i.flags & ATA_EHI_PRINTINFO;
615 unsigned int n, quirks = 0;
616 unsigned char model_num[ATA_ID_PROD_LEN + 1];
618 /* This controller doesn't support trim */
619 dev->horkage |= ATA_HORKAGE_NOTRIM;
621 ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
623 for (n = 0; sil_blacklist[n].product; n++)
624 if (!strcmp(sil_blacklist[n].product, model_num)) {
625 quirks = sil_blacklist[n].quirk;
629 /* limit requests to 15 sectors */
631 ((ap->flags & SIL_FLAG_MOD15WRITE) &&
632 (quirks & SIL_QUIRK_MOD15WRITE))) {
635 "applying Seagate errata fix (mod15write workaround)\n");
636 dev->max_sectors = 15;
641 if (quirks & SIL_QUIRK_UDMA5MAX) {
643 ata_dev_info(dev, "applying Maxtor errata fix %s\n",
645 dev->udma_mask &= ATA_UDMA5;
650 static void sil_init_controller(struct ata_host *host)
652 struct pci_dev *pdev = to_pci_dev(host->dev);
653 void __iomem *mmio_base = host->iomap[SIL_MMIO_BAR];
658 /* Initialize FIFO PCI bus arbitration */
659 cls = sil_get_device_cache_line(pdev);
662 cls++; /* cls = (line_size/8)+1 */
663 for (i = 0; i < host->n_ports; i++)
664 writew(cls << 8 | cls,
665 mmio_base + sil_port[i].fifo_cfg);
668 "cache line size not set. Driver may not function\n");
670 /* Apply R_ERR on DMA activate FIS errata workaround */
671 if (host->ports[0]->flags & SIL_FLAG_RERR_ON_DMA_ACT) {
674 for (i = 0, cnt = 0; i < host->n_ports; i++) {
675 tmp = readl(mmio_base + sil_port[i].sfis_cfg);
676 if ((tmp & 0x3) != 0x01)
680 "Applying R_ERR on DMA activate FIS errata fix\n");
681 writel(tmp & ~0x3, mmio_base + sil_port[i].sfis_cfg);
686 if (host->n_ports == 4) {
687 /* flip the magic "make 4 ports work" bit */
688 tmp = readl(mmio_base + sil_port[2].bmdma);
689 if ((tmp & SIL_INTR_STEERING) == 0)
690 writel(tmp | SIL_INTR_STEERING,
691 mmio_base + sil_port[2].bmdma);
695 static bool sil_broken_system_poweroff(struct pci_dev *pdev)
697 static const struct dmi_system_id broken_systems[] = {
699 .ident = "HP Compaq nx6325",
701 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
702 DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq nx6325"),
704 /* PCI slot number of the controller */
705 .driver_data = (void *)0x12UL,
708 { } /* terminate list */
710 const struct dmi_system_id *dmi = dmi_first_match(broken_systems);
713 unsigned long slot = (unsigned long)dmi->driver_data;
714 /* apply the quirk only to on-board controllers */
715 return slot == PCI_SLOT(pdev->devfn);
721 static int sil_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
723 int board_id = ent->driver_data;
724 struct ata_port_info pi = sil_port_info[board_id];
725 const struct ata_port_info *ppi[] = { &pi, NULL };
726 struct ata_host *host;
727 void __iomem *mmio_base;
731 ata_print_version_once(&pdev->dev, DRV_VERSION);
735 if (board_id == sil_3114)
738 if (sil_broken_system_poweroff(pdev)) {
739 pi.flags |= ATA_FLAG_NO_POWEROFF_SPINDOWN |
740 ATA_FLAG_NO_HIBERNATE_SPINDOWN;
741 dev_info(&pdev->dev, "quirky BIOS, skipping spindown "
742 "on poweroff and hibernation\n");
745 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
749 /* acquire resources and fill host */
750 rc = pcim_enable_device(pdev);
754 rc = pcim_iomap_regions(pdev, 1 << SIL_MMIO_BAR, DRV_NAME);
756 pcim_pin_device(pdev);
759 host->iomap = pcim_iomap_table(pdev);
761 rc = dma_set_mask_and_coherent(&pdev->dev, ATA_DMA_MASK);
765 mmio_base = host->iomap[SIL_MMIO_BAR];
767 for (i = 0; i < host->n_ports; i++) {
768 struct ata_port *ap = host->ports[i];
769 struct ata_ioports *ioaddr = &ap->ioaddr;
771 ioaddr->cmd_addr = mmio_base + sil_port[i].tf;
772 ioaddr->altstatus_addr =
773 ioaddr->ctl_addr = mmio_base + sil_port[i].ctl;
774 ioaddr->bmdma_addr = mmio_base + sil_port[i].bmdma;
775 ioaddr->scr_addr = mmio_base + sil_port[i].scr;
776 ata_sff_std_ports(ioaddr);
778 ata_port_pbar_desc(ap, SIL_MMIO_BAR, -1, "mmio");
779 ata_port_pbar_desc(ap, SIL_MMIO_BAR, sil_port[i].tf, "tf");
782 /* initialize and activate */
783 sil_init_controller(host);
785 pci_set_master(pdev);
786 return ata_host_activate(host, pdev->irq, sil_interrupt, IRQF_SHARED,
790 #ifdef CONFIG_PM_SLEEP
791 static int sil_pci_device_resume(struct pci_dev *pdev)
793 struct ata_host *host = pci_get_drvdata(pdev);
796 rc = ata_pci_device_do_resume(pdev);
800 sil_init_controller(host);
801 ata_host_resume(host);
807 module_pci_driver(sil_pci_driver);