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 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_port_base - return PCI configuration base for dev
79 * Returns the base of the PCI configuration registers for this port
83 static int sis_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 return ata_std_prereset(ap
, deadline
);
157 * sis_error_handler - Probe specified port on PATA host controller
161 * None (inherited from caller).
164 static void sis_error_handler(struct ata_port
*ap
)
166 ata_bmdma_drive_eh(ap
, sis_pre_reset
, ata_std_softreset
, NULL
, ata_std_postreset
);
170 * sis_set_fifo - Set RWP fifo bits for this device
174 * SIS chipsets implement prefetch/postwrite bits for each device
175 * on both channels. This functionality is not ATAPI compatible and
176 * must be configured according to the class of device present
179 static void sis_set_fifo(struct ata_port
*ap
, struct ata_device
*adev
)
181 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
185 mask
<<= (2 * ap
->port_no
);
186 mask
<<= adev
->devno
;
188 /* This holds various bits including the FIFO control */
189 pci_read_config_byte(pdev
, 0x4B, &fifoctrl
);
192 /* Enable for ATA (disk) only */
193 if (adev
->class == ATA_DEV_ATA
)
195 pci_write_config_byte(pdev
, 0x4B, fifoctrl
);
199 * sis_old_set_piomode - Initialize host controller PATA PIO timings
200 * @ap: Port whose timings we are configuring
201 * @adev: Device we are configuring for.
203 * Set PIO mode for device, in host controller PCI config space. This
204 * function handles PIO set up for all chips that are pre ATA100 and
205 * also early ATA100 devices.
208 * None (inherited from caller).
211 static void sis_old_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
213 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
214 int port
= sis_port_base(adev
);
216 int speed
= adev
->pio_mode
- XFER_PIO_0
;
218 const u8 active
[] = { 0x00, 0x07, 0x04, 0x03, 0x01 };
219 const u8 recovery
[] = { 0x00, 0x06, 0x04, 0x03, 0x03 };
221 sis_set_fifo(ap
, adev
);
223 pci_read_config_byte(pdev
, port
, &t1
);
224 pci_read_config_byte(pdev
, port
+ 1, &t2
);
226 t1
&= ~0x0F; /* Clear active/recovery timings */
230 t2
|= recovery
[speed
];
232 pci_write_config_byte(pdev
, port
, t1
);
233 pci_write_config_byte(pdev
, port
+ 1, t2
);
237 * sis_100_set_pioode - Initialize host controller PATA PIO timings
238 * @ap: Port whose timings we are configuring
239 * @adev: Device we are configuring for.
241 * Set PIO mode for device, in host controller PCI config space. This
242 * function handles PIO set up for ATA100 devices and early ATA133.
245 * None (inherited from caller).
248 static void sis_100_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
250 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
251 int port
= sis_port_base(adev
);
252 int speed
= adev
->pio_mode
- XFER_PIO_0
;
254 const u8 actrec
[] = { 0x00, 0x67, 0x44, 0x33, 0x31 };
256 sis_set_fifo(ap
, adev
);
258 pci_write_config_byte(pdev
, port
, actrec
[speed
]);
262 * sis_133_set_pioode - Initialize host controller PATA PIO timings
263 * @ap: Port whose timings we are configuring
264 * @adev: Device we are configuring for.
266 * Set PIO mode for device, in host controller PCI config space. This
267 * function handles PIO set up for the later ATA133 devices.
270 * None (inherited from caller).
273 static void sis_133_set_piomode (struct ata_port
*ap
, struct ata_device
*adev
)
275 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
279 int speed
= adev
->pio_mode
- XFER_PIO_0
;
281 const u32 timing133
[] = {
282 0x28269000, /* Recovery << 24 | Act << 16 | Ini << 12 */
288 const u32 timing100
[] = {
289 0x1E1C6000, /* Recovery << 24 | Act << 16 | Ini << 12 */
296 sis_set_fifo(ap
, adev
);
298 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
299 pci_read_config_dword(pdev
, 0x54, ®54
);
300 if (reg54
& 0x40000000)
302 port
+= 8 * ap
->port_no
+ 4 * adev
->devno
;
304 pci_read_config_dword(pdev
, port
, &t1
);
305 t1
&= 0xC0C00FFF; /* Mask out timing */
307 if (t1
& 0x08) /* 100 or 133 ? */
308 t1
|= timing133
[speed
];
310 t1
|= timing100
[speed
];
311 pci_write_config_byte(pdev
, port
, t1
);
315 * sis_old_set_dmamode - Initialize host controller PATA DMA timings
316 * @ap: Port whose timings we are configuring
317 * @adev: Device to program
319 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
320 * Handles pre UDMA and UDMA33 devices. Supports MWDMA as well unlike
321 * the old ide/pci driver.
324 * None (inherited from caller).
327 static void sis_old_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
329 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
330 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
331 int drive_pci
= sis_port_base(adev
);
334 const u16 mwdma_bits
[] = { 0x707, 0x202, 0x202 };
335 const u16 udma_bits
[] = { 0xE000, 0xC000, 0xA000 };
337 pci_read_config_word(pdev
, drive_pci
, &timing
);
339 if (adev
->dma_mode
< XFER_UDMA_0
) {
340 /* bits 3-0 hold recovery timing bits 8-10 active timing and
341 the higer bits are dependant on the device */
343 timing
|= mwdma_bits
[speed
];
344 pci_write_config_word(pdev
, drive_pci
, timing
);
346 /* Bit 15 is UDMA on/off, bit 13-14 are cycle time */
347 speed
= adev
->dma_mode
- XFER_UDMA_0
;
349 timing
|= udma_bits
[speed
];
354 * sis_66_set_dmamode - Initialize host controller PATA DMA timings
355 * @ap: Port whose timings we are configuring
356 * @adev: Device to program
358 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
359 * Handles UDMA66 and early UDMA100 devices. Supports MWDMA as well unlike
360 * the old ide/pci driver.
363 * None (inherited from caller).
366 static void sis_66_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
368 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
369 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
370 int drive_pci
= sis_port_base(adev
);
373 const u16 mwdma_bits
[] = { 0x707, 0x202, 0x202 };
374 const u16 udma_bits
[] = { 0xF000, 0xD000, 0xB000, 0xA000, 0x9000};
376 pci_read_config_word(pdev
, drive_pci
, &timing
);
378 if (adev
->dma_mode
< XFER_UDMA_0
) {
379 /* bits 3-0 hold recovery timing bits 8-10 active timing and
380 the higer bits are dependant on the device, bit 15 udma */
382 timing
|= mwdma_bits
[speed
];
384 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
385 speed
= adev
->dma_mode
- XFER_UDMA_0
;
387 timing
|= udma_bits
[speed
];
389 pci_write_config_word(pdev
, drive_pci
, timing
);
393 * sis_100_set_dmamode - Initialize host controller PATA DMA timings
394 * @ap: Port whose timings we are configuring
395 * @adev: Device to program
397 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
398 * Handles UDMA66 and early UDMA100 devices.
401 * None (inherited from caller).
404 static void sis_100_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
406 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
407 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
408 int drive_pci
= sis_port_base(adev
);
411 const u16 udma_bits
[] = { 0x8B00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
413 pci_read_config_word(pdev
, drive_pci
, &timing
);
415 if (adev
->dma_mode
< XFER_UDMA_0
) {
416 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
418 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
419 speed
= adev
->dma_mode
- XFER_UDMA_0
;
421 timing
|= udma_bits
[speed
];
423 pci_write_config_word(pdev
, drive_pci
, timing
);
427 * sis_133_early_set_dmamode - Initialize host controller PATA DMA timings
428 * @ap: Port whose timings we are configuring
429 * @adev: Device to program
431 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
432 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
433 * the old ide/pci driver.
436 * None (inherited from caller).
439 static void sis_133_early_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
441 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
442 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
443 int drive_pci
= sis_port_base(adev
);
446 static const u16 udma_bits
[] = { 0x8F00, 0x8A00, 0x8700, 0x8500, 0x8300, 0x8200, 0x8100};
448 pci_read_config_word(pdev
, drive_pci
, &timing
);
450 if (adev
->dma_mode
< XFER_UDMA_0
) {
451 /* NOT SUPPORTED YET: NEED DATA SHEET. DITTO IN OLD DRIVER */
453 /* Bit 15 is UDMA on/off, bit 12-14 are cycle time */
454 speed
= adev
->dma_mode
- XFER_UDMA_0
;
456 timing
|= udma_bits
[speed
];
458 pci_write_config_word(pdev
, drive_pci
, timing
);
462 * sis_133_set_dmamode - Initialize host controller PATA DMA timings
463 * @ap: Port whose timings we are configuring
464 * @adev: Device to program
466 * Set UDMA/MWDMA mode for device, in host controller PCI config space.
467 * Handles early SiS 961 bridges. Supports MWDMA as well unlike
468 * the old ide/pci driver.
471 * None (inherited from caller).
474 static void sis_133_set_dmamode (struct ata_port
*ap
, struct ata_device
*adev
)
476 struct pci_dev
*pdev
= to_pci_dev(ap
->host
->dev
);
477 int speed
= adev
->dma_mode
- XFER_MW_DMA_0
;
482 /* bits 4- cycle time 8 - cvs time */
483 static const u32 timing_u100
[] = { 0x6B0, 0x470, 0x350, 0x140, 0x120, 0x110, 0x000 };
484 static const u32 timing_u133
[] = { 0x9F0, 0x6A0, 0x470, 0x250, 0x230, 0x220, 0x210 };
486 /* If bit 14 is set then the registers are mapped at 0x70 not 0x40 */
487 pci_read_config_dword(pdev
, 0x54, ®54
);
488 if (reg54
& 0x40000000)
490 port
+= (8 * ap
->port_no
) + (4 * adev
->devno
);
492 pci_read_config_dword(pdev
, port
, &t1
);
494 if (adev
->dma_mode
< XFER_UDMA_0
) {
496 /* FIXME: need data sheet to add MWDMA here. Also lacking on
499 speed
= adev
->dma_mode
- XFER_UDMA_0
;
500 /* if & 8 no UDMA133 - need info for ... */
504 t1
|= timing_u133
[speed
];
506 t1
|= timing_u100
[speed
];
508 pci_write_config_dword(pdev
, port
, t1
);
511 static struct scsi_host_template sis_sht
= {
512 .module
= THIS_MODULE
,
514 .ioctl
= ata_scsi_ioctl
,
515 .queuecommand
= ata_scsi_queuecmd
,
516 .can_queue
= ATA_DEF_QUEUE
,
517 .this_id
= ATA_SHT_THIS_ID
,
518 .sg_tablesize
= LIBATA_MAX_PRD
,
519 .cmd_per_lun
= ATA_SHT_CMD_PER_LUN
,
520 .emulated
= ATA_SHT_EMULATED
,
521 .use_clustering
= ATA_SHT_USE_CLUSTERING
,
522 .proc_name
= DRV_NAME
,
523 .dma_boundary
= ATA_DMA_BOUNDARY
,
524 .slave_configure
= ata_scsi_slave_config
,
525 .slave_destroy
= ata_scsi_slave_destroy
,
526 .bios_param
= ata_std_bios_param
,
528 .resume
= ata_scsi_device_resume
,
529 .suspend
= ata_scsi_device_suspend
,
533 static const struct ata_port_operations sis_133_ops
= {
534 .port_disable
= ata_port_disable
,
535 .set_piomode
= sis_133_set_piomode
,
536 .set_dmamode
= sis_133_set_dmamode
,
537 .mode_filter
= ata_pci_default_filter
,
539 .tf_load
= ata_tf_load
,
540 .tf_read
= ata_tf_read
,
541 .check_status
= ata_check_status
,
542 .exec_command
= ata_exec_command
,
543 .dev_select
= ata_std_dev_select
,
545 .freeze
= ata_bmdma_freeze
,
546 .thaw
= ata_bmdma_thaw
,
547 .error_handler
= sis_error_handler
,
548 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
549 .cable_detect
= sis_133_cable_detect
,
551 .bmdma_setup
= ata_bmdma_setup
,
552 .bmdma_start
= ata_bmdma_start
,
553 .bmdma_stop
= ata_bmdma_stop
,
554 .bmdma_status
= ata_bmdma_status
,
555 .qc_prep
= ata_qc_prep
,
556 .qc_issue
= ata_qc_issue_prot
,
557 .data_xfer
= ata_data_xfer
,
559 .irq_handler
= ata_interrupt
,
560 .irq_clear
= ata_bmdma_irq_clear
,
561 .irq_on
= ata_irq_on
,
562 .irq_ack
= ata_irq_ack
,
564 .port_start
= ata_port_start
,
567 static const struct ata_port_operations sis_133_early_ops
= {
568 .port_disable
= ata_port_disable
,
569 .set_piomode
= sis_100_set_piomode
,
570 .set_dmamode
= sis_133_early_set_dmamode
,
571 .mode_filter
= ata_pci_default_filter
,
573 .tf_load
= ata_tf_load
,
574 .tf_read
= ata_tf_read
,
575 .check_status
= ata_check_status
,
576 .exec_command
= ata_exec_command
,
577 .dev_select
= ata_std_dev_select
,
579 .freeze
= ata_bmdma_freeze
,
580 .thaw
= ata_bmdma_thaw
,
581 .error_handler
= sis_error_handler
,
582 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
583 .cable_detect
= sis_66_cable_detect
,
585 .bmdma_setup
= ata_bmdma_setup
,
586 .bmdma_start
= ata_bmdma_start
,
587 .bmdma_stop
= ata_bmdma_stop
,
588 .bmdma_status
= ata_bmdma_status
,
589 .qc_prep
= ata_qc_prep
,
590 .qc_issue
= ata_qc_issue_prot
,
591 .data_xfer
= ata_data_xfer
,
593 .irq_handler
= ata_interrupt
,
594 .irq_clear
= ata_bmdma_irq_clear
,
595 .irq_on
= ata_irq_on
,
596 .irq_ack
= ata_irq_ack
,
598 .port_start
= ata_port_start
,
601 static const struct ata_port_operations sis_100_ops
= {
602 .port_disable
= ata_port_disable
,
603 .set_piomode
= sis_100_set_piomode
,
604 .set_dmamode
= sis_100_set_dmamode
,
605 .mode_filter
= ata_pci_default_filter
,
607 .tf_load
= ata_tf_load
,
608 .tf_read
= ata_tf_read
,
609 .check_status
= ata_check_status
,
610 .exec_command
= ata_exec_command
,
611 .dev_select
= ata_std_dev_select
,
613 .freeze
= ata_bmdma_freeze
,
614 .thaw
= ata_bmdma_thaw
,
615 .error_handler
= sis_error_handler
,
616 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
617 .cable_detect
= sis_66_cable_detect
,
619 .bmdma_setup
= ata_bmdma_setup
,
620 .bmdma_start
= ata_bmdma_start
,
621 .bmdma_stop
= ata_bmdma_stop
,
622 .bmdma_status
= ata_bmdma_status
,
623 .qc_prep
= ata_qc_prep
,
624 .qc_issue
= ata_qc_issue_prot
,
625 .data_xfer
= ata_data_xfer
,
627 .irq_handler
= ata_interrupt
,
628 .irq_clear
= ata_bmdma_irq_clear
,
629 .irq_on
= ata_irq_on
,
630 .irq_ack
= ata_irq_ack
,
632 .port_start
= ata_port_start
,
635 static const struct ata_port_operations sis_66_ops
= {
636 .port_disable
= ata_port_disable
,
637 .set_piomode
= sis_old_set_piomode
,
638 .set_dmamode
= sis_66_set_dmamode
,
639 .mode_filter
= ata_pci_default_filter
,
641 .tf_load
= ata_tf_load
,
642 .tf_read
= ata_tf_read
,
643 .check_status
= ata_check_status
,
644 .exec_command
= ata_exec_command
,
645 .dev_select
= ata_std_dev_select
,
646 .cable_detect
= sis_66_cable_detect
,
648 .freeze
= ata_bmdma_freeze
,
649 .thaw
= ata_bmdma_thaw
,
650 .error_handler
= sis_error_handler
,
651 .post_internal_cmd
= ata_bmdma_post_internal_cmd
,
653 .bmdma_setup
= ata_bmdma_setup
,
654 .bmdma_start
= ata_bmdma_start
,
655 .bmdma_stop
= ata_bmdma_stop
,
656 .bmdma_status
= ata_bmdma_status
,
657 .qc_prep
= ata_qc_prep
,
658 .qc_issue
= ata_qc_issue_prot
,
659 .data_xfer
= ata_data_xfer
,
661 .irq_handler
= ata_interrupt
,
662 .irq_clear
= ata_bmdma_irq_clear
,
663 .irq_on
= ata_irq_on
,
664 .irq_ack
= ata_irq_ack
,
666 .port_start
= ata_port_start
,
669 static const struct ata_port_operations sis_old_ops
= {
670 .port_disable
= ata_port_disable
,
671 .set_piomode
= sis_old_set_piomode
,
672 .set_dmamode
= sis_old_set_dmamode
,
673 .mode_filter
= ata_pci_default_filter
,
675 .tf_load
= ata_tf_load
,
676 .tf_read
= ata_tf_read
,
677 .check_status
= ata_check_status
,
678 .exec_command
= ata_exec_command
,
679 .dev_select
= ata_std_dev_select
,
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
,
685 .cable_detect
= ata_cable_40wire
,
687 .bmdma_setup
= ata_bmdma_setup
,
688 .bmdma_start
= ata_bmdma_start
,
689 .bmdma_stop
= ata_bmdma_stop
,
690 .bmdma_status
= ata_bmdma_status
,
691 .qc_prep
= ata_qc_prep
,
692 .qc_issue
= ata_qc_issue_prot
,
693 .data_xfer
= ata_data_xfer
,
695 .irq_handler
= ata_interrupt
,
696 .irq_clear
= ata_bmdma_irq_clear
,
697 .irq_on
= ata_irq_on
,
698 .irq_ack
= ata_irq_ack
,
700 .port_start
= ata_port_start
,
703 static struct ata_port_info sis_info
= {
705 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
706 .pio_mask
= 0x1f, /* pio0-4 */
709 .port_ops
= &sis_old_ops
,
711 static struct ata_port_info sis_info33
= {
713 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
714 .pio_mask
= 0x1f, /* pio0-4 */
716 .udma_mask
= ATA_UDMA2
, /* UDMA 33 */
717 .port_ops
= &sis_old_ops
,
719 static struct ata_port_info sis_info66
= {
721 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
722 .pio_mask
= 0x1f, /* pio0-4 */
723 .udma_mask
= ATA_UDMA4
, /* UDMA 66 */
724 .port_ops
= &sis_66_ops
,
726 static struct ata_port_info sis_info100
= {
728 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
729 .pio_mask
= 0x1f, /* pio0-4 */
730 .udma_mask
= ATA_UDMA5
,
731 .port_ops
= &sis_100_ops
,
733 static struct ata_port_info sis_info100_early
= {
735 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
736 .udma_mask
= ATA_UDMA5
,
737 .pio_mask
= 0x1f, /* pio0-4 */
738 .port_ops
= &sis_66_ops
,
740 struct ata_port_info sis_info133
= {
742 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
743 .pio_mask
= 0x1f, /* pio0-4 */
744 .udma_mask
= ATA_UDMA6
,
745 .port_ops
= &sis_133_ops
,
747 static struct ata_port_info sis_info133_early
= {
749 .flags
= ATA_FLAG_SLAVE_POSS
| ATA_FLAG_SRST
,
750 .pio_mask
= 0x1f, /* pio0-4 */
751 .udma_mask
= ATA_UDMA6
,
752 .port_ops
= &sis_133_early_ops
,
755 /* Privately shared with the SiS180 SATA driver, not for use elsewhere */
756 EXPORT_SYMBOL_GPL(sis_info133
);
758 static void sis_fixup(struct pci_dev
*pdev
, struct sis_chipset
*sis
)
763 if (sis
->info
== &sis_info133
) {
764 pci_read_config_word(pdev
, 0x50, ®w
);
766 pci_write_config_word(pdev
, 0x50, regw
& ~0x08);
767 pci_read_config_word(pdev
, 0x52, ®w
);
769 pci_write_config_word(pdev
, 0x52, regw
& ~0x08);
773 if (sis
->info
== &sis_info133_early
|| sis
->info
== &sis_info100
) {
775 pci_write_config_byte(pdev
, PCI_LATENCY_TIMER
, 0x80);
776 /* Set compatibility bit */
777 pci_read_config_byte(pdev
, 0x49, ®
);
779 pci_write_config_byte(pdev
, 0x49, reg
| 0x01);
783 if (sis
->info
== &sis_info66
|| sis
->info
== &sis_info100_early
) {
785 pci_write_config_byte(pdev
, PCI_LATENCY_TIMER
, 0x80);
786 /* Set compatibility bit */
787 pci_read_config_byte(pdev
, 0x52, ®
);
789 pci_write_config_byte(pdev
, 0x52, reg
| 0x04);
793 if (sis
->info
== &sis_info33
) {
794 pci_read_config_byte(pdev
, PCI_CLASS_PROG
, ®
);
795 if (( reg
& 0x0F ) != 0x00)
796 pci_write_config_byte(pdev
, PCI_CLASS_PROG
, reg
& 0xF0);
797 /* Fall through to ATA16 fixup below */
800 if (sis
->info
== &sis_info
|| sis
->info
== &sis_info33
) {
801 /* force per drive recovery and active timings
802 needed on ATA_33 and below chips */
803 pci_read_config_byte(pdev
, 0x52, ®
);
805 pci_write_config_byte(pdev
, 0x52, reg
|0x08);
813 * sis_init_one - Register SiS ATA PCI device with kernel services
814 * @pdev: PCI device to register
815 * @ent: Entry in sis_pci_tbl matching with @pdev
817 * Called from kernel PCI layer. We probe for combined mode (sigh),
818 * and then hand over control to libata, for it to do the rest.
821 * Inherited from PCI layer (may sleep).
824 * Zero on success, or -ERRNO value.
827 static int sis_init_one (struct pci_dev
*pdev
, const struct pci_device_id
*ent
)
829 static int printed_version
;
830 static struct ata_port_info
*port_info
[2];
831 struct ata_port_info
*port
;
832 struct pci_dev
*host
= NULL
;
833 struct sis_chipset
*chipset
= NULL
;
834 struct sis_chipset
*sets
;
836 static struct sis_chipset sis_chipsets
[] = {
838 { 0x0968, &sis_info133
},
839 { 0x0966, &sis_info133
},
840 { 0x0965, &sis_info133
},
841 { 0x0745, &sis_info100
},
842 { 0x0735, &sis_info100
},
843 { 0x0733, &sis_info100
},
844 { 0x0635, &sis_info100
},
845 { 0x0633, &sis_info100
},
847 { 0x0730, &sis_info100_early
}, /* 100 with ATA 66 layout */
848 { 0x0550, &sis_info100_early
}, /* 100 with ATA 66 layout */
850 { 0x0640, &sis_info66
},
851 { 0x0630, &sis_info66
},
852 { 0x0620, &sis_info66
},
853 { 0x0540, &sis_info66
},
854 { 0x0530, &sis_info66
},
856 { 0x5600, &sis_info33
},
857 { 0x5598, &sis_info33
},
858 { 0x5597, &sis_info33
},
859 { 0x5591, &sis_info33
},
860 { 0x5582, &sis_info33
},
861 { 0x5581, &sis_info33
},
863 { 0x5596, &sis_info
},
864 { 0x5571, &sis_info
},
865 { 0x5517, &sis_info
},
866 { 0x5511, &sis_info
},
870 static struct sis_chipset sis133_early
= {
871 0x0, &sis_info133_early
873 static struct sis_chipset sis133
= {
876 static struct sis_chipset sis100_early
= {
877 0x0, &sis_info100_early
879 static struct sis_chipset sis100
= {
883 if (!printed_version
++)
884 dev_printk(KERN_DEBUG
, &pdev
->dev
,
885 "version " DRV_VERSION
"\n");
887 /* We have to find the bridge first */
889 for (sets
= &sis_chipsets
[0]; sets
->device
; sets
++) {
890 host
= pci_get_device(PCI_VENDOR_ID_SI
, sets
->device
, NULL
);
892 chipset
= sets
; /* Match found */
893 if (sets
->device
== 0x630) { /* SIS630 */
895 pci_read_config_byte(host
, PCI_REVISION_ID
, &host_rev
);
896 if (host_rev
>= 0x30) /* 630 ET */
897 chipset
= &sis100_early
;
903 /* Look for concealed bridges */
904 if (chipset
== NULL
) {
909 /* Disable ID masking and register remapping then
910 see what the real ID is */
912 pci_read_config_dword(pdev
, 0x54, &idemisc
);
913 pci_write_config_dword(pdev
, 0x54, idemisc
& 0x7fffffff);
914 pci_read_config_word(pdev
, PCI_DEVICE_ID
, &trueid
);
915 pci_write_config_dword(pdev
, 0x54, idemisc
);
918 case 0x5518: /* SIS 962/963 */
920 if ((idemisc
& 0x40000000) == 0) {
921 pci_write_config_dword(pdev
, 0x54, idemisc
| 0x40000000);
922 printk(KERN_INFO
"SIS5513: Switching to 5513 register mapping\n");
925 case 0x0180: /* SIS 965/965L */
928 case 0x1180: /* SIS 966/966L */
935 if (chipset
== NULL
) {
936 struct pci_dev
*lpc_bridge
;
942 /* Try the second unmasking technique */
943 pci_read_config_byte(pdev
, 0x4a, &idecfg
);
944 pci_write_config_byte(pdev
, 0x4a, idecfg
| 0x10);
945 pci_read_config_word(pdev
, PCI_DEVICE_ID
, &trueid
);
946 pci_write_config_byte(pdev
, 0x4a, idecfg
);
950 lpc_bridge
= pci_get_slot(pdev
->bus
, 0x10); /* Bus 0 Dev 2 Fn 0 */
951 if (lpc_bridge
== NULL
)
953 pci_read_config_byte(lpc_bridge
, PCI_REVISION_ID
, &sbrev
);
954 pci_read_config_byte(pdev
, 0x49, &prefctl
);
955 pci_dev_put(lpc_bridge
);
957 if (sbrev
== 0x10 && (prefctl
& 0x80)) {
958 chipset
= &sis133_early
;
967 /* No chipset info, no support */
971 port
= chipset
->info
;
972 port
->private_data
= chipset
;
974 sis_fixup(pdev
, chipset
);
976 port_info
[0] = port_info
[1] = port
;
977 return ata_pci_init_one(pdev
, port_info
, 2);
980 static const struct pci_device_id sis_pci_tbl
[] = {
981 { PCI_VDEVICE(SI
, 0x5513), }, /* SiS 5513 */
982 { PCI_VDEVICE(SI
, 0x5518), }, /* SiS 5518 */
987 static struct pci_driver sis_pci_driver
= {
989 .id_table
= sis_pci_tbl
,
990 .probe
= sis_init_one
,
991 .remove
= ata_pci_remove_one
,
993 .suspend
= ata_pci_device_suspend
,
994 .resume
= ata_pci_device_resume
,
998 static int __init
sis_init(void)
1000 return pci_register_driver(&sis_pci_driver
);
1003 static void __exit
sis_exit(void)
1005 pci_unregister_driver(&sis_pci_driver
);
1008 module_init(sis_init
);
1009 module_exit(sis_exit
);
1011 MODULE_AUTHOR("Alan Cox");
1012 MODULE_DESCRIPTION("SCSI low-level driver for SiS ATA");
1013 MODULE_LICENSE("GPL");
1014 MODULE_DEVICE_TABLE(pci
, sis_pci_tbl
);
1015 MODULE_VERSION(DRV_VERSION
);