2 * pata_sis.c - SiS ATA driver
4 * (C) 2005 Red Hat <alan@redhat.com>
5 * (C) 2007 Bartlomiej Zolnierkiewicz
7 * Based upon linux/drivers/ide/pci/sis5513.c
8 * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
9 * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
10 * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
11 * SiS Taiwan : for direct support and hardware.
12 * Daniela Engert : for initial ATA100 advices and numerous others.
13 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
14 * for checking code correctness, providing patches.
15 * Original tests and design on the SiS620 chipset.
16 * ATA100 tests and design on the SiS735 chipset.
17 * ATA16/33 support from specs
18 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
22 * Check MWDMA on drives that don't support MWDMA speed pio cycles ?
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/pci.h>
29 #include <linux/init.h>
30 #include <linux/blkdev.h>
31 #include <linux/delay.h>
32 #include <linux/device.h>
33 #include <scsi/scsi_host.h>
34 #include <linux/libata.h>
35 #include <linux/ata.h>
38 #define DRV_NAME "pata_sis"
39 #define DRV_VERSION "0.5.2"
42 u16 device; /* PCI host ID */
43 const struct ata_port_info *info; /* Info block */
44 /* Probably add family, cable detect type etc here to clean
54 static const struct sis_laptop sis_laptop[] = {
55 /* devid, subvendor, subdev */
56 { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
57 { 0x5513, 0x1734, 0x105F }, /* FSC Amilo A1630 */
58 { 0x5513, 0x1071, 0x8640 }, /* EasyNote K5305 */
59 { 0x5513, 0x1039, 0x5513 }, /* Targa Visionary 1000 */
64 static int sis_short_ata40(struct pci_dev *dev)
66 const struct sis_laptop *lap = &sis_laptop[0];
69 if (lap->device == dev->device &&
70 lap->subvendor == dev->subsystem_vendor &&
71 lap->subdevice == dev->subsystem_device)
80 * sis_old_port_base - return PCI configuration base for dev
83 * Returns the base of the PCI configuration registers for this port
87 static int sis_old_port_base(struct ata_device *adev)
89 return 0x40 + (4 * adev->link->ap->port_no) + (2 * adev->devno);
93 * sis_133_cable_detect - check for 40/80 pin
95 * @deadline: deadline jiffies for the operation
97 * Perform cable detection for the later UDMA133 capable
101 static int sis_133_cable_detect(struct ata_port *ap)
103 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
106 /* The top bit of this register is the cable detect bit */
107 pci_read_config_word(pdev, 0x50 + 2 * ap->port_no, &tmp);
108 if ((tmp & 0x8000) && !sis_short_ata40(pdev))
109 return ATA_CBL_PATA40;
110 return ATA_CBL_PATA80;
114 * sis_66_cable_detect - check for 40/80 pin
116 * @deadline: deadline jiffies for the operation
118 * Perform cable detection on the UDMA66, UDMA100 and early UDMA133
119 * SiS IDE controllers.
122 static int sis_66_cable_detect(struct ata_port *ap)
124 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
127 /* Older chips keep cable detect in bits 4/5 of reg 0x48 */
128 pci_read_config_byte(pdev, 0x48, &tmp);
130 if ((tmp & 0x10) && !sis_short_ata40(pdev))
131 return ATA_CBL_PATA40;
132 return ATA_CBL_PATA80;
137 * sis_pre_reset - probe begin
139 * @deadline: deadline jiffies for the operation
141 * Set up cable type and use generic probe init
144 static int sis_pre_reset(struct ata_link *link, unsigned long deadline)
146 static const struct pci_bits sis_enable_bits[] = {
147 { 0x4aU, 1U, 0x02UL, 0x02UL }, /* port 0 */
148 { 0x4aU, 1U, 0x04UL, 0x04UL }, /* port 1 */
151 struct ata_port *ap = link->ap;
152 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
154 if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no]))
157 /* Clear the FIFO settings. We can't enable the FIFO until
158 we know we are poking at a disk */
159 pci_write_config_byte(pdev, 0x4B, 0);
160 return ata_sff_prereset(link, deadline);
165 * sis_set_fifo - Set RWP fifo bits for this device
169 * SIS chipsets implement prefetch/postwrite bits for each device
170 * on both channels. This functionality is not ATAPI compatible and
171 * must be configured according to the class of device present
174 static void sis_set_fifo(struct ata_port *ap, struct ata_device *adev)
176 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
180 mask <<= (2 * ap->port_no);
181 mask <<= adev->devno;
183 /* This holds various bits including the FIFO control */
184 pci_read_config_byte(pdev, 0x4B, &fifoctrl);
187 /* Enable for ATA (disk) only */
188 if (adev->class == ATA_DEV_ATA)
190 pci_write_config_byte(pdev, 0x4B, fifoctrl);
194 * sis_old_set_piomode - Initialize host controller PATA PIO timings
195 * @ap: Port whose timings we are configuring
196 * @adev: Device we are configuring for.
198 * Set PIO mode for device, in host controller PCI config space. This
199 * function handles PIO set up for all chips that are pre ATA100 and
200 * also early ATA100 devices.
203 * None (inherited from caller).
206 static void sis_old_set_piomode (struct ata_port *ap, struct ata_device *adev)
208 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
209 int port = sis_old_port_base(adev);
211 int speed = adev->pio_mode - XFER_PIO_0;
213 const u8 active[] = { 0x00, 0x07, 0x04, 0x03, 0x01 };
214 const u8 recovery[] = { 0x00, 0x06, 0x04, 0x03, 0x03 };
216 sis_set_fifo(ap, adev);
218 pci_read_config_byte(pdev, port, &t1);
219 pci_read_config_byte(pdev, port + 1, &t2);
221 t1 &= ~0x0F; /* Clear active/recovery timings */
225 t2 |= recovery[speed];
227 pci_write_config_byte(pdev, port, t1);
228 pci_write_config_byte(pdev, port + 1, t2);
232 * sis_100_set_piomode - Initialize host controller PATA PIO timings
233 * @ap: Port whose timings we are configuring
234 * @adev: Device we are configuring for.
236 * Set PIO mode for device, in host controller PCI config space. This
237 * function handles PIO set up for ATA100 devices and early ATA133.
240 * None (inherited from caller).
243 static void sis_100_set_piomode (struct ata_port *ap, struct ata_device *adev)
245 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
246 int port = sis_old_port_base(adev);
247 int speed = adev->pio_mode - XFER_PIO_0;
249 const u8 actrec[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
251 sis_set_fifo(ap, adev);
253 pci_write_config_byte(pdev, port, actrec[speed]);
257 * sis_133_set_piomode - Initialize host controller PATA PIO timings
258 * @ap: Port whose timings we are configuring
259 * @adev: Device we are configuring for.
261 * Set PIO mode for device, in host controller PCI config space. This
262 * function handles PIO set up for the later ATA133 devices.
265 * None (inherited from caller).
268 static void sis_133_set_piomode (struct ata_port *ap, struct ata_device *adev)
270 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
274 int speed = adev->pio_mode - XFER_PIO_0;
276 const u32 timing133[] = {
277 0x28269000, /* Recovery << 24 | Act << 16 | Ini << 12 */
283 const u32 timing100[] = {
284 0x1E1C6000, /* Recovery << 24 | Act << 16 | Ini << 12 */
291 sis_set_fifo(ap, adev);
293 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
294 pci_read_config_dword(pdev, 0x54, ®54);
295 if (reg54 & 0x40000000)
297 port += 8 * ap->port_no + 4 * adev->devno;
299 pci_read_config_dword(pdev, port, &t1);
300 t1 &= 0xC0C00FFF; /* Mask out timing */
302 if (t1 & 0x08) /* 100 or 133 ? */
303 t1 |= timing133[speed];
305 t1 |= timing100[speed];
306 pci_write_config_byte(pdev, port, t1);
310 * sis_old_set_dmamode - Initialize host controller PATA DMA timings
311 * @ap: Port whose timings we are configuring
312 * @adev: Device to program
314 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
315 * Handles pre UDMA and UDMA33 devices. Supports MWDMA as well unlike
316 * the old ide/pci driver.
319 * None (inherited from caller).
322 static void sis_old_set_dmamode (struct ata_port *ap, struct ata_device *adev)
324 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
325 int speed = adev->dma_mode - XFER_MW_DMA_0;
326 int drive_pci = sis_old_port_base(adev);
329 const u16 mwdma_bits[] = { 0x008, 0x302, 0x301 };
330 const u16 udma_bits[] = { 0xE000, 0xC000, 0xA000 };
332 pci_read_config_word(pdev, drive_pci, &timing);
334 if (adev->dma_mode < XFER_UDMA_0) {
335 /* bits 3-0 hold recovery timing bits 8-10 active timing and
336 the higher bits are dependant on the device */
338 timing |= mwdma_bits[speed];
340 /* Bit 15 is UDMA on/off, bit 13-14 are cycle time */
341 speed = adev->dma_mode - XFER_UDMA_0;
343 timing |= udma_bits[speed];
345 pci_write_config_word(pdev, drive_pci, timing);
349 * sis_66_set_dmamode - Initialize host controller PATA DMA timings
350 * @ap: Port whose timings we are configuring
351 * @adev: Device to program
353 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
354 * Handles UDMA66 and early UDMA100 devices. Supports MWDMA as well unlike
355 * the old ide/pci driver.
358 * None (inherited from caller).
361 static void sis_66_set_dmamode (struct ata_port *ap, struct ata_device *adev)
363 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
364 int speed = adev->dma_mode - XFER_MW_DMA_0;
365 int drive_pci = sis_old_port_base(adev);
368 /* MWDMA 0-2 and UDMA 0-5 */
369 const u16 mwdma_bits[] = { 0x008, 0x302, 0x301 };
370 const u16 udma_bits[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000, 0x8000 };
372 pci_read_config_word(pdev, drive_pci, &timing);
374 if (adev->dma_mode < XFER_UDMA_0) {
375 /* bits 3-0 hold recovery timing bits 8-10 active timing and
376 the higher bits are dependant on the device, bit 15 udma */
378 timing |= mwdma_bits[speed];
380 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
381 speed = adev->dma_mode - XFER_UDMA_0;
383 timing |= udma_bits[speed];
385 pci_write_config_word(pdev, drive_pci, timing);
389 * sis_100_set_dmamode - Initialize host controller PATA DMA timings
390 * @ap: Port whose timings we are configuring
391 * @adev: Device to program
393 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
394 * Handles UDMA66 and early UDMA100 devices.
397 * None (inherited from caller).
400 static void sis_100_set_dmamode (struct ata_port *ap, struct ata_device *adev)
402 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
403 int speed = adev->dma_mode - XFER_MW_DMA_0;
404 int drive_pci = sis_old_port_base(adev);
407 const u8 udma_bits[] = { 0x8B, 0x87, 0x85, 0x83, 0x82, 0x81};
409 pci_read_config_byte(pdev, drive_pci + 1, &timing);
411 if (adev->dma_mode < XFER_UDMA_0) {
412 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
414 /* Bit 7 is UDMA on/off, bit 0-3 are cycle time */
415 speed = adev->dma_mode - XFER_UDMA_0;
417 timing |= udma_bits[speed];
419 pci_write_config_byte(pdev, drive_pci + 1, timing);
423 * sis_133_early_set_dmamode - Initialize host controller PATA DMA timings
424 * @ap: Port whose timings we are configuring
425 * @adev: Device to program
427 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
428 * Handles early SiS 961 bridges.
431 * None (inherited from caller).
434 static void sis_133_early_set_dmamode (struct ata_port *ap, struct ata_device *adev)
436 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
437 int speed = adev->dma_mode - XFER_MW_DMA_0;
438 int drive_pci = sis_old_port_base(adev);
440 /* Low 4 bits are timing */
441 static const u8 udma_bits[] = { 0x8F, 0x8A, 0x87, 0x85, 0x83, 0x82, 0x81};
443 pci_read_config_byte(pdev, drive_pci + 1, &timing);
445 if (adev->dma_mode < XFER_UDMA_0) {
446 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
448 /* Bit 7 is UDMA on/off, bit 0-3 are cycle time */
449 speed = adev->dma_mode - XFER_UDMA_0;
451 timing |= udma_bits[speed];
453 pci_write_config_byte(pdev, drive_pci + 1, timing);
457 * sis_133_set_dmamode - Initialize host controller PATA DMA timings
458 * @ap: Port whose timings we are configuring
459 * @adev: Device to program
461 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
464 * None (inherited from caller).
467 static void sis_133_set_dmamode (struct ata_port *ap, struct ata_device *adev)
469 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
470 int speed = adev->dma_mode - XFER_MW_DMA_0;
475 /* bits 4- cycle time 8 - cvs time */
476 static const u32 timing_u100[] = { 0x6B0, 0x470, 0x350, 0x140, 0x120, 0x110, 0x000 };
477 static const u32 timing_u133[] = { 0x9F0, 0x6A0, 0x470, 0x250, 0x230, 0x220, 0x210 };
479 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
480 pci_read_config_dword(pdev, 0x54, ®54);
481 if (reg54 & 0x40000000)
483 port += (8 * ap->port_no) + (4 * adev->devno);
485 pci_read_config_dword(pdev, port, &t1);
487 if (adev->dma_mode < XFER_UDMA_0) {
489 /* FIXME: need data sheet to add MWDMA here. Also lacking on
492 speed = adev->dma_mode - XFER_UDMA_0;
493 /* if & 8 no UDMA133 - need info for ... */
497 t1 |= timing_u133[speed];
499 t1 |= timing_u100[speed];
501 pci_write_config_dword(pdev, port, t1);
504 static struct scsi_host_template sis_sht = {
505 ATA_BMDMA_SHT(DRV_NAME),
508 static struct ata_port_operations sis_133_for_sata_ops = {
509 .inherits = &ata_bmdma_port_ops,
510 .set_piomode = sis_133_set_piomode,
511 .set_dmamode = sis_133_set_dmamode,
512 .cable_detect = sis_133_cable_detect,
515 static struct ata_port_operations sis_base_ops = {
516 .inherits = &ata_bmdma_port_ops,
517 .prereset = sis_pre_reset,
520 static struct ata_port_operations sis_133_ops = {
521 .inherits = &sis_base_ops,
522 .set_piomode = sis_133_set_piomode,
523 .set_dmamode = sis_133_set_dmamode,
524 .cable_detect = sis_133_cable_detect,
527 static struct ata_port_operations sis_133_early_ops = {
528 .inherits = &sis_base_ops,
529 .set_piomode = sis_100_set_piomode,
530 .set_dmamode = sis_133_early_set_dmamode,
531 .cable_detect = sis_66_cable_detect,
534 static struct ata_port_operations sis_100_ops = {
535 .inherits = &sis_base_ops,
536 .set_piomode = sis_100_set_piomode,
537 .set_dmamode = sis_100_set_dmamode,
538 .cable_detect = sis_66_cable_detect,
541 static struct ata_port_operations sis_66_ops = {
542 .inherits = &sis_base_ops,
543 .set_piomode = sis_old_set_piomode,
544 .set_dmamode = sis_66_set_dmamode,
545 .cable_detect = sis_66_cable_detect,
548 static struct ata_port_operations sis_old_ops = {
549 .inherits = &sis_base_ops,
550 .set_piomode = sis_old_set_piomode,
551 .set_dmamode = sis_old_set_dmamode,
552 .cable_detect = ata_cable_40wire,
555 static const struct ata_port_info sis_info = {
556 .flags = ATA_FLAG_SLAVE_POSS,
557 .pio_mask = 0x1f, /* pio0-4 */
560 .port_ops = &sis_old_ops,
562 static const struct ata_port_info sis_info33 = {
563 .flags = ATA_FLAG_SLAVE_POSS,
564 .pio_mask = 0x1f, /* pio0-4 */
566 .udma_mask = ATA_UDMA2, /* UDMA 33 */
567 .port_ops = &sis_old_ops,
569 static const struct ata_port_info sis_info66 = {
570 .flags = ATA_FLAG_SLAVE_POSS,
571 .pio_mask = 0x1f, /* pio0-4 */
572 .udma_mask = ATA_UDMA4, /* UDMA 66 */
573 .port_ops = &sis_66_ops,
575 static const struct ata_port_info sis_info100 = {
576 .flags = ATA_FLAG_SLAVE_POSS,
577 .pio_mask = 0x1f, /* pio0-4 */
578 .udma_mask = ATA_UDMA5,
579 .port_ops = &sis_100_ops,
581 static const struct ata_port_info sis_info100_early = {
582 .flags = ATA_FLAG_SLAVE_POSS,
583 .udma_mask = ATA_UDMA5,
584 .pio_mask = 0x1f, /* pio0-4 */
585 .port_ops = &sis_66_ops,
587 static const struct ata_port_info sis_info133 = {
588 .flags = ATA_FLAG_SLAVE_POSS,
589 .pio_mask = 0x1f, /* pio0-4 */
590 .udma_mask = ATA_UDMA6,
591 .port_ops = &sis_133_ops,
593 const struct ata_port_info sis_info133_for_sata = {
594 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
595 .pio_mask = 0x1f, /* pio0-4 */
596 .udma_mask = ATA_UDMA6,
597 .port_ops = &sis_133_for_sata_ops,
599 static const struct ata_port_info sis_info133_early = {
600 .flags = ATA_FLAG_SLAVE_POSS,
601 .pio_mask = 0x1f, /* pio0-4 */
602 .udma_mask = ATA_UDMA6,
603 .port_ops = &sis_133_early_ops,
606 /* Privately shared with the SiS180 SATA driver, not for use elsewhere */
607 EXPORT_SYMBOL_GPL(sis_info133_for_sata);
609 static void sis_fixup(struct pci_dev *pdev, struct sis_chipset *sis)
614 if (sis->info == &sis_info133) {
615 pci_read_config_word(pdev, 0x50, ®w);
617 pci_write_config_word(pdev, 0x50, regw & ~0x08);
618 pci_read_config_word(pdev, 0x52, ®w);
620 pci_write_config_word(pdev, 0x52, regw & ~0x08);
624 if (sis->info == &sis_info133_early || sis->info == &sis_info100) {
626 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
627 /* Set compatibility bit */
628 pci_read_config_byte(pdev, 0x49, ®);
630 pci_write_config_byte(pdev, 0x49, reg | 0x01);
634 if (sis->info == &sis_info66 || sis->info == &sis_info100_early) {
636 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
637 /* Set compatibility bit */
638 pci_read_config_byte(pdev, 0x52, ®);
640 pci_write_config_byte(pdev, 0x52, reg | 0x04);
644 if (sis->info == &sis_info33) {
645 pci_read_config_byte(pdev, PCI_CLASS_PROG, ®);
646 if (( reg & 0x0F ) != 0x00)
647 pci_write_config_byte(pdev, PCI_CLASS_PROG, reg & 0xF0);
648 /* Fall through to ATA16 fixup below */
651 if (sis->info == &sis_info || sis->info == &sis_info33) {
652 /* force per drive recovery and active timings
653 needed on ATA_33 and below chips */
654 pci_read_config_byte(pdev, 0x52, ®);
656 pci_write_config_byte(pdev, 0x52, reg|0x08);
664 * sis_init_one - Register SiS ATA PCI device with kernel services
665 * @pdev: PCI device to register
666 * @ent: Entry in sis_pci_tbl matching with @pdev
668 * Called from kernel PCI layer. We probe for combined mode (sigh),
669 * and then hand over control to libata, for it to do the rest.
672 * Inherited from PCI layer (may sleep).
675 * Zero on success, or -ERRNO value.
678 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
680 static int printed_version;
681 const struct ata_port_info *ppi[] = { NULL, NULL };
682 struct pci_dev *host = NULL;
683 struct sis_chipset *chipset = NULL;
684 struct sis_chipset *sets;
687 static struct sis_chipset sis_chipsets[] = {
689 { 0x0968, &sis_info133 },
690 { 0x0966, &sis_info133 },
691 { 0x0965, &sis_info133 },
692 { 0x0745, &sis_info100 },
693 { 0x0735, &sis_info100 },
694 { 0x0733, &sis_info100 },
695 { 0x0635, &sis_info100 },
696 { 0x0633, &sis_info100 },
698 { 0x0730, &sis_info100_early }, /* 100 with ATA 66 layout */
699 { 0x0550, &sis_info100_early }, /* 100 with ATA 66 layout */
701 { 0x0640, &sis_info66 },
702 { 0x0630, &sis_info66 },
703 { 0x0620, &sis_info66 },
704 { 0x0540, &sis_info66 },
705 { 0x0530, &sis_info66 },
707 { 0x5600, &sis_info33 },
708 { 0x5598, &sis_info33 },
709 { 0x5597, &sis_info33 },
710 { 0x5591, &sis_info33 },
711 { 0x5582, &sis_info33 },
712 { 0x5581, &sis_info33 },
714 { 0x5596, &sis_info },
715 { 0x5571, &sis_info },
716 { 0x5517, &sis_info },
717 { 0x5511, &sis_info },
721 static struct sis_chipset sis133_early = {
722 0x0, &sis_info133_early
724 static struct sis_chipset sis133 = {
727 static struct sis_chipset sis100_early = {
728 0x0, &sis_info100_early
730 static struct sis_chipset sis100 = {
734 if (!printed_version++)
735 dev_printk(KERN_DEBUG, &pdev->dev,
736 "version " DRV_VERSION "\n");
738 rc = pcim_enable_device(pdev);
742 /* We have to find the bridge first */
743 for (sets = &sis_chipsets[0]; sets->device; sets++) {
744 host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
746 chipset = sets; /* Match found */
747 if (sets->device == 0x630) { /* SIS630 */
748 if (host->revision >= 0x30) /* 630 ET */
749 chipset = &sis100_early;
755 /* Look for concealed bridges */
756 if (chipset == NULL) {
761 /* Disable ID masking and register remapping then
762 see what the real ID is */
764 pci_read_config_dword(pdev, 0x54, &idemisc);
765 pci_write_config_dword(pdev, 0x54, idemisc & 0x7fffffff);
766 pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
767 pci_write_config_dword(pdev, 0x54, idemisc);
770 case 0x5518: /* SIS 962/963 */
772 if ((idemisc & 0x40000000) == 0) {
773 pci_write_config_dword(pdev, 0x54, idemisc | 0x40000000);
774 printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
777 case 0x0180: /* SIS 965/965L */
780 case 0x1180: /* SIS 966/966L */
787 if (chipset == NULL) {
788 struct pci_dev *lpc_bridge;
793 /* Try the second unmasking technique */
794 pci_read_config_byte(pdev, 0x4a, &idecfg);
795 pci_write_config_byte(pdev, 0x4a, idecfg | 0x10);
796 pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
797 pci_write_config_byte(pdev, 0x4a, idecfg);
801 lpc_bridge = pci_get_slot(pdev->bus, 0x10); /* Bus 0 Dev 2 Fn 0 */
802 if (lpc_bridge == NULL)
804 pci_read_config_byte(pdev, 0x49, &prefctl);
805 pci_dev_put(lpc_bridge);
807 if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
808 chipset = &sis133_early;
817 /* No chipset info, no support */
821 ppi[0] = chipset->info;
823 sis_fixup(pdev, chipset);
825 return ata_pci_sff_init_one(pdev, ppi, &sis_sht, chipset);
828 static const struct pci_device_id sis_pci_tbl[] = {
829 { PCI_VDEVICE(SI, 0x5513), }, /* SiS 5513 */
830 { PCI_VDEVICE(SI, 0x5518), }, /* SiS 5518 */
831 { PCI_VDEVICE(SI, 0x1180), }, /* SiS 1180 */
836 static struct pci_driver sis_pci_driver = {
838 .id_table = sis_pci_tbl,
839 .probe = sis_init_one,
840 .remove = ata_pci_remove_one,
842 .suspend = ata_pci_device_suspend,
843 .resume = ata_pci_device_resume,
847 static int __init sis_init(void)
849 return pci_register_driver(&sis_pci_driver);
852 static void __exit sis_exit(void)
854 pci_unregister_driver(&sis_pci_driver);
857 module_init(sis_init);
858 module_exit(sis_exit);
860 MODULE_AUTHOR("Alan Cox");
861 MODULE_DESCRIPTION("SCSI low-level driver for SiS ATA");
862 MODULE_LICENSE("GPL");
863 MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
864 MODULE_VERSION(DRV_VERSION);