2 * pata_sis.c - SiS ATA driver
4 * (C) 2005 Red Hat <alan@redhat.com>
6 * Based upon linux/drivers/ide/pci/sis5513.c
7 * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org>
8 * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer
9 * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz>
10 * SiS Taiwan : for direct support and hardware.
11 * Daniela Engert : for initial ATA100 advices and numerous others.
12 * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt :
13 * for checking code correctness, providing patches.
14 * Original tests and design on the SiS620 chipset.
15 * ATA100 tests and design on the SiS735 chipset.
16 * ATA16/33 support from specs
17 * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw>
21 * Check MWDMA on drives that don't support MWDMA speed pio cycles ?
25 #include <linux/kernel.h>
26 #include <linux/module.h>
27 #include <linux/pci.h>
28 #include <linux/init.h>
29 #include <linux/blkdev.h>
30 #include <linux/delay.h>
31 #include <linux/device.h>
32 #include <scsi/scsi_host.h>
33 #include <linux/libata.h>
34 #include <linux/ata.h>
37 #define DRV_NAME "pata_sis"
38 #define DRV_VERSION "0.5.1"
41 u16 device; /* PCI host ID */
42 const struct ata_port_info *info; /* Info block */
43 /* Probably add family, cable detect type etc here to clean
53 static const struct sis_laptop sis_laptop[] = {
54 /* devid, subvendor, subdev */
55 { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */
60 static int sis_short_ata40(struct pci_dev *dev)
62 const struct sis_laptop *lap = &sis_laptop[0];
65 if (lap->device == dev->device &&
66 lap->subvendor == dev->subsystem_vendor &&
67 lap->subdevice == dev->subsystem_device)
76 * sis_old_port_base - return PCI configuration base for dev
79 * Returns the base of the PCI configuration registers for this port
83 static int sis_old_port_base(struct ata_device *adev)
85 return 0x40 + (4 * adev->ap->port_no) + (2 * adev->devno);
89 * sis_133_cable_detect - check for 40/80 pin
91 * @deadline: deadline jiffies for the operation
93 * Perform cable detection for the later UDMA133 capable
97 static int sis_133_cable_detect(struct ata_port *ap)
99 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
102 /* The top bit of this register is the cable detect bit */
103 pci_read_config_word(pdev, 0x50 + 2 * ap->port_no, &tmp);
104 if ((tmp & 0x8000) && !sis_short_ata40(pdev))
105 return ATA_CBL_PATA40;
106 return ATA_CBL_PATA80;
110 * sis_66_cable_detect - check for 40/80 pin
112 * @deadline: deadline jiffies for the operation
114 * Perform cable detection on the UDMA66, UDMA100 and early UDMA133
115 * SiS IDE controllers.
118 static int sis_66_cable_detect(struct ata_port *ap)
120 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
123 /* Older chips keep cable detect in bits 4/5 of reg 0x48 */
124 pci_read_config_byte(pdev, 0x48, &tmp);
126 if ((tmp & 0x10) && !sis_short_ata40(pdev))
127 return ATA_CBL_PATA40;
128 return ATA_CBL_PATA80;
133 * sis_pre_reset - probe begin
135 * @deadline: deadline jiffies for the operation
137 * Set up cable type and use generic probe init
140 static int sis_pre_reset(struct ata_port *ap, unsigned long deadline)
142 static const struct pci_bits sis_enable_bits[] = {
143 { 0x4aU, 1U, 0x02UL, 0x02UL }, /* port 0 */
144 { 0x4aU, 1U, 0x04UL, 0x04UL }, /* port 1 */
147 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
149 if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no]))
152 /* Clear the FIFO settings. We can't enable the FIFO until
153 we know we are poking at a disk */
154 pci_write_config_byte(pdev, 0x4B, 0);
155 return ata_std_prereset(ap, deadline);
160 * sis_error_handler - Probe specified port on PATA host controller
164 * None (inherited from caller).
167 static void sis_error_handler(struct ata_port *ap)
169 ata_bmdma_drive_eh(ap, sis_pre_reset, ata_std_softreset, NULL, ata_std_postreset);
173 * sis_set_fifo - Set RWP fifo bits for this device
177 * SIS chipsets implement prefetch/postwrite bits for each device
178 * on both channels. This functionality is not ATAPI compatible and
179 * must be configured according to the class of device present
182 static void sis_set_fifo(struct ata_port *ap, struct ata_device *adev)
184 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
188 mask <<= (2 * ap->port_no);
189 mask <<= adev->devno;
191 /* This holds various bits including the FIFO control */
192 pci_read_config_byte(pdev, 0x4B, &fifoctrl);
195 /* Enable for ATA (disk) only */
196 if (adev->class == ATA_DEV_ATA)
198 pci_write_config_byte(pdev, 0x4B, fifoctrl);
202 * sis_old_set_piomode - Initialize host controller PATA PIO timings
203 * @ap: Port whose timings we are configuring
204 * @adev: Device we are configuring for.
206 * Set PIO mode for device, in host controller PCI config space. This
207 * function handles PIO set up for all chips that are pre ATA100 and
208 * also early ATA100 devices.
211 * None (inherited from caller).
214 static void sis_old_set_piomode (struct ata_port *ap, struct ata_device *adev)
216 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
217 int port = sis_old_port_base(adev);
219 int speed = adev->pio_mode - XFER_PIO_0;
221 const u8 active[] = { 0x00, 0x07, 0x04, 0x03, 0x01 };
222 const u8 recovery[] = { 0x00, 0x06, 0x04, 0x03, 0x03 };
224 sis_set_fifo(ap, adev);
226 pci_read_config_byte(pdev, port, &t1);
227 pci_read_config_byte(pdev, port + 1, &t2);
229 t1 &= ~0x0F; /* Clear active/recovery timings */
233 t2 |= recovery[speed];
235 pci_write_config_byte(pdev, port, t1);
236 pci_write_config_byte(pdev, port + 1, t2);
240 * sis_100_set_pioode - Initialize host controller PATA PIO timings
241 * @ap: Port whose timings we are configuring
242 * @adev: Device we are configuring for.
244 * Set PIO mode for device, in host controller PCI config space. This
245 * function handles PIO set up for ATA100 devices and early ATA133.
248 * None (inherited from caller).
251 static void sis_100_set_piomode (struct ata_port *ap, struct ata_device *adev)
253 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
254 int port = sis_old_port_base(adev);
255 int speed = adev->pio_mode - XFER_PIO_0;
257 const u8 actrec[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
259 sis_set_fifo(ap, adev);
261 pci_write_config_byte(pdev, port, actrec[speed]);
265 * sis_133_set_pioode - Initialize host controller PATA PIO timings
266 * @ap: Port whose timings we are configuring
267 * @adev: Device we are configuring for.
269 * Set PIO mode for device, in host controller PCI config space. This
270 * function handles PIO set up for the later ATA133 devices.
273 * None (inherited from caller).
276 static void sis_133_set_piomode (struct ata_port *ap, struct ata_device *adev)
278 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
282 int speed = adev->pio_mode - XFER_PIO_0;
284 const u32 timing133[] = {
285 0x28269000, /* Recovery << 24 | Act << 16 | Ini << 12 */
291 const u32 timing100[] = {
292 0x1E1C6000, /* Recovery << 24 | Act << 16 | Ini << 12 */
299 sis_set_fifo(ap, adev);
301 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
302 pci_read_config_dword(pdev, 0x54, ®54);
303 if (reg54 & 0x40000000)
305 port += 8 * ap->port_no + 4 * adev->devno;
307 pci_read_config_dword(pdev, port, &t1);
308 t1 &= 0xC0C00FFF; /* Mask out timing */
310 if (t1 & 0x08) /* 100 or 133 ? */
311 t1 |= timing133[speed];
313 t1 |= timing100[speed];
314 pci_write_config_byte(pdev, port, t1);
318 * sis_old_set_dmamode - Initialize host controller PATA DMA timings
319 * @ap: Port whose timings we are configuring
320 * @adev: Device to program
322 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
323 * Handles pre UDMA and UDMA33 devices. Supports MWDMA as well unlike
324 * the old ide/pci driver.
327 * None (inherited from caller).
330 static void sis_old_set_dmamode (struct ata_port *ap, struct ata_device *adev)
332 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
333 int speed = adev->dma_mode - XFER_MW_DMA_0;
334 int drive_pci = sis_old_port_base(adev);
337 const u16 mwdma_bits[] = { 0x707, 0x202, 0x202 };
338 const u16 udma_bits[] = { 0xE000, 0xC000, 0xA000 };
340 pci_read_config_word(pdev, drive_pci, &timing);
342 if (adev->dma_mode < XFER_UDMA_0) {
343 /* bits 3-0 hold recovery timing bits 8-10 active timing and
344 the higer bits are dependant on the device */
346 timing |= mwdma_bits[speed];
347 pci_write_config_word(pdev, drive_pci, timing);
349 /* Bit 15 is UDMA on/off, bit 13-14 are cycle time */
350 speed = adev->dma_mode - XFER_UDMA_0;
352 timing |= udma_bits[speed];
357 * sis_66_set_dmamode - Initialize host controller PATA DMA timings
358 * @ap: Port whose timings we are configuring
359 * @adev: Device to program
361 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
362 * Handles UDMA66 and early UDMA100 devices. Supports MWDMA as well unlike
363 * the old ide/pci driver.
366 * None (inherited from caller).
369 static void sis_66_set_dmamode (struct ata_port *ap, struct ata_device *adev)
371 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
372 int speed = adev->dma_mode - XFER_MW_DMA_0;
373 int drive_pci = sis_old_port_base(adev);
376 const u16 mwdma_bits[] = { 0x707, 0x202, 0x202 };
377 const u16 udma_bits[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000};
379 pci_read_config_word(pdev, drive_pci, &timing);
381 if (adev->dma_mode < XFER_UDMA_0) {
382 /* bits 3-0 hold recovery timing bits 8-10 active timing and
383 the higer bits are dependant on the device, bit 15 udma */
385 timing |= mwdma_bits[speed];
387 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
388 speed = adev->dma_mode - XFER_UDMA_0;
390 timing |= udma_bits[speed];
392 pci_write_config_word(pdev, drive_pci, timing);
396 * sis_100_set_dmamode - Initialize host controller PATA DMA timings
397 * @ap: Port whose timings we are configuring
398 * @adev: Device to program
400 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
401 * Handles UDMA66 and early UDMA100 devices.
404 * None (inherited from caller).
407 static void sis_100_set_dmamode (struct ata_port *ap, struct ata_device *adev)
409 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
410 int speed = adev->dma_mode - XFER_MW_DMA_0;
411 int drive_pci = sis_old_port_base(adev);
414 const u8 udma_bits[] = { 0x8B, 0x87, 0x85, 0x83, 0x82, 0x81};
416 pci_read_config_byte(pdev, drive_pci + 1, &timing);
418 if (adev->dma_mode < XFER_UDMA_0) {
419 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
421 /* Bit 7 is UDMA on/off, bit 0-3 are cycle time */
422 speed = adev->dma_mode - XFER_UDMA_0;
424 timing |= udma_bits[speed];
426 pci_write_config_byte(pdev, drive_pci + 1, timing);
430 * sis_133_early_set_dmamode - Initialize host controller PATA DMA timings
431 * @ap: Port whose timings we are configuring
432 * @adev: Device to program
434 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
435 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
436 * the old ide/pci driver.
439 * None (inherited from caller).
442 static void sis_133_early_set_dmamode (struct ata_port *ap, struct ata_device *adev)
444 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
445 int speed = adev->dma_mode - XFER_MW_DMA_0;
446 int drive_pci = sis_old_port_base(adev);
448 /* Low 4 bits are timing */
449 static const u8 udma_bits[] = { 0x8F, 0x8A, 0x87, 0x85, 0x83, 0x82, 0x81};
451 pci_read_config_byte(pdev, drive_pci + 1, &timing);
453 if (adev->dma_mode < XFER_UDMA_0) {
454 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
456 /* Bit 7 is UDMA on/off, bit 0-3 are cycle time */
457 speed = adev->dma_mode - XFER_UDMA_0;
459 timing |= udma_bits[speed];
461 pci_write_config_byte(pdev, drive_pci + 1, timing);
465 * sis_133_set_dmamode - Initialize host controller PATA DMA timings
466 * @ap: Port whose timings we are configuring
467 * @adev: Device to program
469 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
470 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
471 * the old ide/pci driver.
474 * None (inherited from caller).
477 static void sis_133_set_dmamode (struct ata_port *ap, struct ata_device *adev)
479 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
480 int speed = adev->dma_mode - XFER_MW_DMA_0;
485 /* bits 4- cycle time 8 - cvs time */
486 static const u32 timing_u100[] = { 0x6B0, 0x470, 0x350, 0x140, 0x120, 0x110, 0x000 };
487 static const u32 timing_u133[] = { 0x9F0, 0x6A0, 0x470, 0x250, 0x230, 0x220, 0x210 };
489 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
490 pci_read_config_dword(pdev, 0x54, ®54);
491 if (reg54 & 0x40000000)
493 port += (8 * ap->port_no) + (4 * adev->devno);
495 pci_read_config_dword(pdev, port, &t1);
497 if (adev->dma_mode < XFER_UDMA_0) {
499 /* FIXME: need data sheet to add MWDMA here. Also lacking on
502 speed = adev->dma_mode - XFER_UDMA_0;
503 /* if & 8 no UDMA133 - need info for ... */
507 t1 |= timing_u133[speed];
509 t1 |= timing_u100[speed];
511 pci_write_config_dword(pdev, port, t1);
514 static struct scsi_host_template sis_sht = {
515 .module = THIS_MODULE,
517 .ioctl = ata_scsi_ioctl,
518 .queuecommand = ata_scsi_queuecmd,
519 .can_queue = ATA_DEF_QUEUE,
520 .this_id = ATA_SHT_THIS_ID,
521 .sg_tablesize = LIBATA_MAX_PRD,
522 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
523 .emulated = ATA_SHT_EMULATED,
524 .use_clustering = ATA_SHT_USE_CLUSTERING,
525 .proc_name = DRV_NAME,
526 .dma_boundary = ATA_DMA_BOUNDARY,
527 .slave_configure = ata_scsi_slave_config,
528 .slave_destroy = ata_scsi_slave_destroy,
529 .bios_param = ata_std_bios_param,
532 static const struct ata_port_operations sis_133_ops = {
533 .port_disable = ata_port_disable,
534 .set_piomode = sis_133_set_piomode,
535 .set_dmamode = sis_133_set_dmamode,
536 .mode_filter = ata_pci_default_filter,
538 .tf_load = ata_tf_load,
539 .tf_read = ata_tf_read,
540 .check_status = ata_check_status,
541 .exec_command = ata_exec_command,
542 .dev_select = ata_std_dev_select,
544 .freeze = ata_bmdma_freeze,
545 .thaw = ata_bmdma_thaw,
546 .error_handler = sis_error_handler,
547 .post_internal_cmd = ata_bmdma_post_internal_cmd,
548 .cable_detect = sis_133_cable_detect,
550 .bmdma_setup = ata_bmdma_setup,
551 .bmdma_start = ata_bmdma_start,
552 .bmdma_stop = ata_bmdma_stop,
553 .bmdma_status = ata_bmdma_status,
554 .qc_prep = ata_qc_prep,
555 .qc_issue = ata_qc_issue_prot,
556 .data_xfer = ata_data_xfer,
558 .irq_handler = ata_interrupt,
559 .irq_clear = ata_bmdma_irq_clear,
560 .irq_on = ata_irq_on,
561 .irq_ack = ata_irq_ack,
563 .port_start = ata_port_start,
566 static const struct ata_port_operations sis_133_for_sata_ops = {
567 .port_disable = ata_port_disable,
568 .set_piomode = sis_133_set_piomode,
569 .set_dmamode = sis_133_set_dmamode,
570 .mode_filter = ata_pci_default_filter,
572 .tf_load = ata_tf_load,
573 .tf_read = ata_tf_read,
574 .check_status = ata_check_status,
575 .exec_command = ata_exec_command,
576 .dev_select = ata_std_dev_select,
578 .freeze = ata_bmdma_freeze,
579 .thaw = ata_bmdma_thaw,
580 .error_handler = ata_bmdma_error_handler,
581 .post_internal_cmd = ata_bmdma_post_internal_cmd,
582 .cable_detect = sis_133_cable_detect,
584 .bmdma_setup = ata_bmdma_setup,
585 .bmdma_start = ata_bmdma_start,
586 .bmdma_stop = ata_bmdma_stop,
587 .bmdma_status = ata_bmdma_status,
588 .qc_prep = ata_qc_prep,
589 .qc_issue = ata_qc_issue_prot,
590 .data_xfer = ata_data_xfer,
592 .irq_handler = ata_interrupt,
593 .irq_clear = ata_bmdma_irq_clear,
594 .irq_on = ata_irq_on,
595 .irq_ack = ata_irq_ack,
597 .port_start = ata_port_start,
600 static const struct ata_port_operations sis_133_early_ops = {
601 .port_disable = ata_port_disable,
602 .set_piomode = sis_100_set_piomode,
603 .set_dmamode = sis_133_early_set_dmamode,
604 .mode_filter = ata_pci_default_filter,
606 .tf_load = ata_tf_load,
607 .tf_read = ata_tf_read,
608 .check_status = ata_check_status,
609 .exec_command = ata_exec_command,
610 .dev_select = ata_std_dev_select,
612 .freeze = ata_bmdma_freeze,
613 .thaw = ata_bmdma_thaw,
614 .error_handler = sis_error_handler,
615 .post_internal_cmd = ata_bmdma_post_internal_cmd,
616 .cable_detect = sis_66_cable_detect,
618 .bmdma_setup = ata_bmdma_setup,
619 .bmdma_start = ata_bmdma_start,
620 .bmdma_stop = ata_bmdma_stop,
621 .bmdma_status = ata_bmdma_status,
622 .qc_prep = ata_qc_prep,
623 .qc_issue = ata_qc_issue_prot,
624 .data_xfer = ata_data_xfer,
626 .irq_handler = ata_interrupt,
627 .irq_clear = ata_bmdma_irq_clear,
628 .irq_on = ata_irq_on,
629 .irq_ack = ata_irq_ack,
631 .port_start = ata_port_start,
634 static const struct ata_port_operations sis_100_ops = {
635 .port_disable = ata_port_disable,
636 .set_piomode = sis_100_set_piomode,
637 .set_dmamode = sis_100_set_dmamode,
638 .mode_filter = ata_pci_default_filter,
640 .tf_load = ata_tf_load,
641 .tf_read = ata_tf_read,
642 .check_status = ata_check_status,
643 .exec_command = ata_exec_command,
644 .dev_select = ata_std_dev_select,
646 .freeze = ata_bmdma_freeze,
647 .thaw = ata_bmdma_thaw,
648 .error_handler = sis_error_handler,
649 .post_internal_cmd = ata_bmdma_post_internal_cmd,
650 .cable_detect = sis_66_cable_detect,
652 .bmdma_setup = ata_bmdma_setup,
653 .bmdma_start = ata_bmdma_start,
654 .bmdma_stop = ata_bmdma_stop,
655 .bmdma_status = ata_bmdma_status,
656 .qc_prep = ata_qc_prep,
657 .qc_issue = ata_qc_issue_prot,
658 .data_xfer = ata_data_xfer,
660 .irq_handler = ata_interrupt,
661 .irq_clear = ata_bmdma_irq_clear,
662 .irq_on = ata_irq_on,
663 .irq_ack = ata_irq_ack,
665 .port_start = ata_port_start,
668 static const struct ata_port_operations sis_66_ops = {
669 .port_disable = ata_port_disable,
670 .set_piomode = sis_old_set_piomode,
671 .set_dmamode = sis_66_set_dmamode,
672 .mode_filter = ata_pci_default_filter,
674 .tf_load = ata_tf_load,
675 .tf_read = ata_tf_read,
676 .check_status = ata_check_status,
677 .exec_command = ata_exec_command,
678 .dev_select = ata_std_dev_select,
679 .cable_detect = sis_66_cable_detect,
681 .freeze = ata_bmdma_freeze,
682 .thaw = ata_bmdma_thaw,
683 .error_handler = sis_error_handler,
684 .post_internal_cmd = ata_bmdma_post_internal_cmd,
686 .bmdma_setup = ata_bmdma_setup,
687 .bmdma_start = ata_bmdma_start,
688 .bmdma_stop = ata_bmdma_stop,
689 .bmdma_status = ata_bmdma_status,
690 .qc_prep = ata_qc_prep,
691 .qc_issue = ata_qc_issue_prot,
692 .data_xfer = ata_data_xfer,
694 .irq_handler = ata_interrupt,
695 .irq_clear = ata_bmdma_irq_clear,
696 .irq_on = ata_irq_on,
697 .irq_ack = ata_irq_ack,
699 .port_start = ata_port_start,
702 static const struct ata_port_operations sis_old_ops = {
703 .port_disable = ata_port_disable,
704 .set_piomode = sis_old_set_piomode,
705 .set_dmamode = sis_old_set_dmamode,
706 .mode_filter = ata_pci_default_filter,
708 .tf_load = ata_tf_load,
709 .tf_read = ata_tf_read,
710 .check_status = ata_check_status,
711 .exec_command = ata_exec_command,
712 .dev_select = ata_std_dev_select,
714 .freeze = ata_bmdma_freeze,
715 .thaw = ata_bmdma_thaw,
716 .error_handler = sis_error_handler,
717 .post_internal_cmd = ata_bmdma_post_internal_cmd,
718 .cable_detect = ata_cable_40wire,
720 .bmdma_setup = ata_bmdma_setup,
721 .bmdma_start = ata_bmdma_start,
722 .bmdma_stop = ata_bmdma_stop,
723 .bmdma_status = ata_bmdma_status,
724 .qc_prep = ata_qc_prep,
725 .qc_issue = ata_qc_issue_prot,
726 .data_xfer = ata_data_xfer,
728 .irq_handler = ata_interrupt,
729 .irq_clear = ata_bmdma_irq_clear,
730 .irq_on = ata_irq_on,
731 .irq_ack = ata_irq_ack,
733 .port_start = ata_port_start,
736 static const struct ata_port_info sis_info = {
738 .flags = ATA_FLAG_SLAVE_POSS,
739 .pio_mask = 0x1f, /* pio0-4 */
742 .port_ops = &sis_old_ops,
744 static const struct ata_port_info sis_info33 = {
746 .flags = ATA_FLAG_SLAVE_POSS,
747 .pio_mask = 0x1f, /* pio0-4 */
749 .udma_mask = ATA_UDMA2, /* UDMA 33 */
750 .port_ops = &sis_old_ops,
752 static const struct ata_port_info sis_info66 = {
754 .flags = ATA_FLAG_SLAVE_POSS,
755 .pio_mask = 0x1f, /* pio0-4 */
756 .udma_mask = ATA_UDMA4, /* UDMA 66 */
757 .port_ops = &sis_66_ops,
759 static const struct ata_port_info sis_info100 = {
761 .flags = ATA_FLAG_SLAVE_POSS,
762 .pio_mask = 0x1f, /* pio0-4 */
763 .udma_mask = ATA_UDMA5,
764 .port_ops = &sis_100_ops,
766 static const struct ata_port_info sis_info100_early = {
768 .flags = ATA_FLAG_SLAVE_POSS,
769 .udma_mask = ATA_UDMA5,
770 .pio_mask = 0x1f, /* pio0-4 */
771 .port_ops = &sis_66_ops,
773 static const struct ata_port_info sis_info133 = {
775 .flags = ATA_FLAG_SLAVE_POSS,
776 .pio_mask = 0x1f, /* pio0-4 */
777 .udma_mask = ATA_UDMA6,
778 .port_ops = &sis_133_ops,
780 const struct ata_port_info sis_info133_for_sata = {
782 .flags = ATA_FLAG_SLAVE_POSS | ATA_FLAG_SRST,
783 .pio_mask = 0x1f, /* pio0-4 */
784 .udma_mask = ATA_UDMA6,
785 .port_ops = &sis_133_for_sata_ops,
787 static const struct ata_port_info sis_info133_early = {
789 .flags = ATA_FLAG_SLAVE_POSS,
790 .pio_mask = 0x1f, /* pio0-4 */
791 .udma_mask = ATA_UDMA6,
792 .port_ops = &sis_133_early_ops,
795 /* Privately shared with the SiS180 SATA driver, not for use elsewhere */
796 EXPORT_SYMBOL_GPL(sis_info133_for_sata);
798 static void sis_fixup(struct pci_dev *pdev, struct sis_chipset *sis)
803 if (sis->info == &sis_info133) {
804 pci_read_config_word(pdev, 0x50, ®w);
806 pci_write_config_word(pdev, 0x50, regw & ~0x08);
807 pci_read_config_word(pdev, 0x52, ®w);
809 pci_write_config_word(pdev, 0x52, regw & ~0x08);
813 if (sis->info == &sis_info133_early || sis->info == &sis_info100) {
815 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
816 /* Set compatibility bit */
817 pci_read_config_byte(pdev, 0x49, ®);
819 pci_write_config_byte(pdev, 0x49, reg | 0x01);
823 if (sis->info == &sis_info66 || sis->info == &sis_info100_early) {
825 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x80);
826 /* Set compatibility bit */
827 pci_read_config_byte(pdev, 0x52, ®);
829 pci_write_config_byte(pdev, 0x52, reg | 0x04);
833 if (sis->info == &sis_info33) {
834 pci_read_config_byte(pdev, PCI_CLASS_PROG, ®);
835 if (( reg & 0x0F ) != 0x00)
836 pci_write_config_byte(pdev, PCI_CLASS_PROG, reg & 0xF0);
837 /* Fall through to ATA16 fixup below */
840 if (sis->info == &sis_info || sis->info == &sis_info33) {
841 /* force per drive recovery and active timings
842 needed on ATA_33 and below chips */
843 pci_read_config_byte(pdev, 0x52, ®);
845 pci_write_config_byte(pdev, 0x52, reg|0x08);
853 * sis_init_one - Register SiS ATA PCI device with kernel services
854 * @pdev: PCI device to register
855 * @ent: Entry in sis_pci_tbl matching with @pdev
857 * Called from kernel PCI layer. We probe for combined mode (sigh),
858 * and then hand over control to libata, for it to do the rest.
861 * Inherited from PCI layer (may sleep).
864 * Zero on success, or -ERRNO value.
867 static int sis_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
869 static int printed_version;
870 struct ata_port_info port;
871 const struct ata_port_info *ppi[] = { &port, NULL };
872 struct pci_dev *host = NULL;
873 struct sis_chipset *chipset = NULL;
874 struct sis_chipset *sets;
876 static struct sis_chipset sis_chipsets[] = {
878 { 0x0968, &sis_info133 },
879 { 0x0966, &sis_info133 },
880 { 0x0965, &sis_info133 },
881 { 0x0745, &sis_info100 },
882 { 0x0735, &sis_info100 },
883 { 0x0733, &sis_info100 },
884 { 0x0635, &sis_info100 },
885 { 0x0633, &sis_info100 },
887 { 0x0730, &sis_info100_early }, /* 100 with ATA 66 layout */
888 { 0x0550, &sis_info100_early }, /* 100 with ATA 66 layout */
890 { 0x0640, &sis_info66 },
891 { 0x0630, &sis_info66 },
892 { 0x0620, &sis_info66 },
893 { 0x0540, &sis_info66 },
894 { 0x0530, &sis_info66 },
896 { 0x5600, &sis_info33 },
897 { 0x5598, &sis_info33 },
898 { 0x5597, &sis_info33 },
899 { 0x5591, &sis_info33 },
900 { 0x5582, &sis_info33 },
901 { 0x5581, &sis_info33 },
903 { 0x5596, &sis_info },
904 { 0x5571, &sis_info },
905 { 0x5517, &sis_info },
906 { 0x5511, &sis_info },
910 static struct sis_chipset sis133_early = {
911 0x0, &sis_info133_early
913 static struct sis_chipset sis133 = {
916 static struct sis_chipset sis100_early = {
917 0x0, &sis_info100_early
919 static struct sis_chipset sis100 = {
923 if (!printed_version++)
924 dev_printk(KERN_DEBUG, &pdev->dev,
925 "version " DRV_VERSION "\n");
927 /* We have to find the bridge first */
929 for (sets = &sis_chipsets[0]; sets->device; sets++) {
930 host = pci_get_device(PCI_VENDOR_ID_SI, sets->device, NULL);
932 chipset = sets; /* Match found */
933 if (sets->device == 0x630) { /* SIS630 */
934 if (host->revision >= 0x30) /* 630 ET */
935 chipset = &sis100_early;
941 /* Look for concealed bridges */
942 if (chipset == NULL) {
947 /* Disable ID masking and register remapping then
948 see what the real ID is */
950 pci_read_config_dword(pdev, 0x54, &idemisc);
951 pci_write_config_dword(pdev, 0x54, idemisc & 0x7fffffff);
952 pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
953 pci_write_config_dword(pdev, 0x54, idemisc);
956 case 0x5518: /* SIS 962/963 */
958 if ((idemisc & 0x40000000) == 0) {
959 pci_write_config_dword(pdev, 0x54, idemisc | 0x40000000);
960 printk(KERN_INFO "SIS5513: Switching to 5513 register mapping\n");
963 case 0x0180: /* SIS 965/965L */
966 case 0x1180: /* SIS 966/966L */
973 if (chipset == NULL) {
974 struct pci_dev *lpc_bridge;
979 /* Try the second unmasking technique */
980 pci_read_config_byte(pdev, 0x4a, &idecfg);
981 pci_write_config_byte(pdev, 0x4a, idecfg | 0x10);
982 pci_read_config_word(pdev, PCI_DEVICE_ID, &trueid);
983 pci_write_config_byte(pdev, 0x4a, idecfg);
987 lpc_bridge = pci_get_slot(pdev->bus, 0x10); /* Bus 0 Dev 2 Fn 0 */
988 if (lpc_bridge == NULL)
990 pci_read_config_byte(pdev, 0x49, &prefctl);
991 pci_dev_put(lpc_bridge);
993 if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) {
994 chipset = &sis133_early;
1003 /* No chipset info, no support */
1004 if (chipset == NULL)
1007 port = *chipset->info;
1008 port.private_data = chipset;
1010 sis_fixup(pdev, chipset);
1012 return ata_pci_init_one(pdev, ppi);
1015 static const struct pci_device_id sis_pci_tbl[] = {
1016 { PCI_VDEVICE(SI, 0x5513), }, /* SiS 5513 */
1017 { PCI_VDEVICE(SI, 0x5518), }, /* SiS 5518 */
1018 { PCI_VDEVICE(SI, 0x1180), }, /* SiS 1180 */
1023 static struct pci_driver sis_pci_driver = {
1025 .id_table = sis_pci_tbl,
1026 .probe = sis_init_one,
1027 .remove = ata_pci_remove_one,
1029 .suspend = ata_pci_device_suspend,
1030 .resume = ata_pci_device_resume,
1034 static int __init sis_init(void)
1036 return pci_register_driver(&sis_pci_driver);
1039 static void __exit sis_exit(void)
1041 pci_unregister_driver(&sis_pci_driver);
1044 module_init(sis_init);
1045 module_exit(sis_exit);
1047 MODULE_AUTHOR("Alan Cox");
1048 MODULE_DESCRIPTION("SCSI low-level driver for SiS ATA");
1049 MODULE_LICENSE("GPL");
1050 MODULE_DEVICE_TABLE(pci, sis_pci_tbl);
1051 MODULE_VERSION(DRV_VERSION);