2 * pata_via.c - VIA PATA for new ATA layer
3 * (C) 2005-2006 Red Hat Inc
6 * Most chipset documentation available under NDA only
9 * VIA VT82C561 - early design, uses ata_generic currently
10 * VIA VT82C576 - MWDMA, 33Mhz
11 * VIA VT82C586 - MWDMA, 33Mhz
12 * VIA VT82C586a - Added UDMA to 33Mhz
13 * VIA VT82C586b - UDMA33
14 * VIA VT82C596a - Nonfunctional UDMA66
15 * VIA VT82C596b - Working UDMA66
16 * VIA VT82C686 - Nonfunctional UDMA66
17 * VIA VT82C686a - Working UDMA66
18 * VIA VT82C686b - Updated to UDMA100
19 * VIA VT8231 - UDMA100
20 * VIA VT8233 - UDMA100
21 * VIA VT8233a - UDMA133
22 * VIA VT8233c - UDMA100
23 * VIA VT8235 - UDMA133
24 * VIA VT8237 - UDMA133
25 * VIA VT8237A - UDMA133
26 * VIA VT8237S - UDMA133
27 * VIA VT8251 - UDMA133
29 * Most registers remain compatible across chips. Others start reserved
30 * and acquire sensible semantics if set to 1 (eg cable detect). A few
31 * exceptions exist, notably around the FIFO settings.
33 * One additional quirk of the VIA design is that like ALi they use few
34 * PCI IDs for a lot of chips.
40 * VIA IDE driver for Linux. Supported southbridges:
42 * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
43 * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
46 * Copyright (c) 2000-2002 Vojtech Pavlik
48 * Based on the work of:
55 #include <linux/kernel.h>
56 #include <linux/module.h>
57 #include <linux/pci.h>
58 #include <linux/init.h>
59 #include <linux/blkdev.h>
60 #include <linux/delay.h>
61 #include <linux/gfp.h>
62 #include <scsi/scsi_host.h>
63 #include <linux/libata.h>
64 #include <linux/dmi.h>
66 #define DRV_NAME "pata_via"
67 #define DRV_VERSION "0.3.4"
70 VIA_BAD_PREQ = 0x01, /* Crashes if PREQ# till DDACK# set */
71 VIA_BAD_CLK66 = 0x02, /* 66 MHz clock doesn't work correctly */
72 VIA_SET_FIFO = 0x04, /* Needs to have FIFO split set */
73 VIA_NO_UNMASK = 0x08, /* Doesn't work with IRQ unmasking on */
74 VIA_BAD_ID = 0x10, /* Has wrong vendor ID (0x1107) */
75 VIA_BAD_AST = 0x20, /* Don't touch Address Setup Timing */
76 VIA_NO_ENABLES = 0x40, /* Has no enablebits */
77 VIA_SATA_PATA = 0x80, /* SATA/PATA combined configuration */
81 VIA_IDFLAG_SINGLE = (1 << 0), /* single channel controller) */
85 * VIA SouthBridge chips.
88 static const struct via_isa_bridge {
95 } via_isa_bridges[] = {
96 { "vx855", PCI_DEVICE_ID_VIA_VX855, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
97 { "vx800", PCI_DEVICE_ID_VIA_VX800, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
98 { "vt8261", PCI_DEVICE_ID_VIA_8261, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
99 { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
100 { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
101 { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA },
102 { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_NO_ENABLES },
103 { "vt6415", PCI_DEVICE_ID_VIA_6415, 0x00, 0xff, ATA_UDMA6, VIA_BAD_AST | VIA_NO_ENABLES },
104 { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
105 { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
106 { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
107 { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
108 { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, ATA_UDMA5, },
109 { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, ATA_UDMA5, },
110 { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, ATA_UDMA5, },
111 { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, ATA_UDMA5, },
112 { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, ATA_UDMA4, },
113 { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
114 { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, ATA_UDMA4, },
115 { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 },
116 { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO },
117 { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ },
118 { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO },
119 { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO },
120 { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, 0x00, VIA_SET_FIFO },
121 { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK },
122 { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
123 { "vtxxxx", PCI_DEVICE_ID_VIA_ANON, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST },
132 * Cable special cases
135 static const struct dmi_system_id cable_dmi_table[] = {
137 .ident = "Acer Ferrari 3400",
139 DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."),
140 DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"),
146 static int via_cable_override(struct pci_dev *pdev)
149 if (dmi_check_system(cable_dmi_table))
151 /* Arima W730-K8/Targa Visionary 811/... */
152 if (pdev->subsystem_vendor == 0x161F && pdev->subsystem_device == 0x2032)
159 * via_cable_detect - cable detection
162 * Perform cable detection. Actually for the VIA case the BIOS
163 * already did this for us. We read the values provided by the
164 * BIOS. If you are using an 8235 in a non-PC configuration you
165 * may need to update this code.
167 * Hotplug also impacts on this.
170 static int via_cable_detect(struct ata_port *ap) {
171 const struct via_isa_bridge *config = ap->host->private_data;
172 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
175 if (via_cable_override(pdev))
176 return ATA_CBL_PATA40_SHORT;
178 if ((config->flags & VIA_SATA_PATA) && ap->port_no == 0)
181 /* Early chips are 40 wire */
182 if (config->udma_mask < ATA_UDMA4)
183 return ATA_CBL_PATA40;
184 /* UDMA 66 chips have only drive side logic */
185 else if (config->udma_mask < ATA_UDMA5)
186 return ATA_CBL_PATA_UNK;
187 /* UDMA 100 or later */
188 pci_read_config_dword(pdev, 0x50, &ata66);
189 /* Check both the drive cable reporting bits, we might not have
191 if (ata66 & (0x10100000 >> (16 * ap->port_no)))
192 return ATA_CBL_PATA80;
193 /* Check with ACPI so we can spot BIOS reported SATA bridges */
194 if (ata_acpi_init_gtm(ap) &&
195 ata_acpi_cbl_80wire(ap, ata_acpi_init_gtm(ap)))
196 return ATA_CBL_PATA80;
197 return ATA_CBL_PATA40;
200 static int via_pre_reset(struct ata_link *link, unsigned long deadline)
202 struct ata_port *ap = link->ap;
203 const struct via_isa_bridge *config = ap->host->private_data;
205 if (!(config->flags & VIA_NO_ENABLES)) {
206 static const struct pci_bits via_enable_bits[] = {
207 { 0x40, 1, 0x02, 0x02 },
208 { 0x40, 1, 0x01, 0x01 }
210 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
211 if (!pci_test_config_bits(pdev, &via_enable_bits[ap->port_no]))
215 return ata_sff_prereset(link, deadline);
220 * via_do_set_mode - set transfer mode data
223 * @mode: ATA mode being programmed
224 * @set_ast: Set to program address setup
225 * @udma_type: UDMA mode/format of registers
227 * Program the VIA registers for DMA and PIO modes. Uses the ata timing
228 * support in order to compute modes.
230 * FIXME: Hotplug will require we serialize multiple mode changes
231 * on the two channels.
234 static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev,
235 int mode, int set_ast, int udma_type)
237 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
238 struct ata_device *peer = ata_dev_pair(adev);
239 struct ata_timing t, p;
240 static int via_clock = 33333; /* Bus clock in kHZ */
241 unsigned long T = 1000000000 / via_clock;
242 unsigned long UT = T;
244 int offset = 3 - (2*ap->port_no) - adev->devno;
255 /* Calculate the timing values we require */
256 ata_timing_compute(adev, mode, &t, T, UT);
258 /* We share 8bit timing so we must merge the constraints */
260 if (peer->pio_mode) {
261 ata_timing_compute(peer, peer->pio_mode, &p, T, UT);
262 ata_timing_merge(&p, &t, &t, ATA_TIMING_8BIT);
266 /* Address setup is programmable but breaks on UDMA133 setups */
268 u8 setup; /* 2 bits per drive */
269 int shift = 2 * offset;
271 pci_read_config_byte(pdev, 0x4C, &setup);
272 setup &= ~(3 << shift);
273 setup |= (clamp_val(t.setup, 1, 4) - 1) << shift;
274 pci_write_config_byte(pdev, 0x4C, setup);
277 /* Load the PIO mode bits */
278 pci_write_config_byte(pdev, 0x4F - ap->port_no,
279 ((clamp_val(t.act8b, 1, 16) - 1) << 4) | (clamp_val(t.rec8b, 1, 16) - 1));
280 pci_write_config_byte(pdev, 0x48 + offset,
281 ((clamp_val(t.active, 1, 16) - 1) << 4) | (clamp_val(t.recover, 1, 16) - 1));
283 /* Load the UDMA bits according to type */
287 ut = t.udma ? (0xe0 | (clamp_val(t.udma, 2, 5) - 2)) : 0x03;
290 ut = t.udma ? (0xe8 | (clamp_val(t.udma, 2, 9) - 2)) : 0x0f;
293 ut = t.udma ? (0xe0 | (clamp_val(t.udma, 2, 9) - 2)) : 0x07;
296 ut = t.udma ? (0xe0 | (clamp_val(t.udma, 2, 9) - 2)) : 0x07;
300 /* Set UDMA unless device is not UDMA capable */
304 pci_read_config_byte(pdev, 0x50 + offset, &udma_etc);
306 /* clear transfer mode bit */
310 /* preserve 80-wire cable detection bit */
315 pci_write_config_byte(pdev, 0x50 + offset, udma_etc);
319 static void via_set_piomode(struct ata_port *ap, struct ata_device *adev)
321 const struct via_isa_bridge *config = ap->host->private_data;
322 int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
324 via_do_set_mode(ap, adev, adev->pio_mode, set_ast, config->udma_mask);
327 static void via_set_dmamode(struct ata_port *ap, struct ata_device *adev)
329 const struct via_isa_bridge *config = ap->host->private_data;
330 int set_ast = (config->flags & VIA_BAD_AST) ? 0 : 1;
332 via_do_set_mode(ap, adev, adev->dma_mode, set_ast, config->udma_mask);
336 * via_mode_filter - filter buggy device/mode pairs
338 * @mask: Mode bitmask
340 * We need to apply some minimal filtering for old controllers and at least
341 * one breed of Transcend SSD. Return the updated mask.
344 static unsigned long via_mode_filter(struct ata_device *dev, unsigned long mask)
346 struct ata_host *host = dev->link->ap->host;
347 const struct via_isa_bridge *config = host->private_data;
348 unsigned char model_num[ATA_ID_PROD_LEN + 1];
350 if (config->id == PCI_DEVICE_ID_VIA_82C586_0) {
351 ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
352 if (strcmp(model_num, "TS64GSSD25-M") == 0) {
353 ata_dev_printk(dev, KERN_WARNING,
354 "disabling UDMA mode due to reported lockups with this device.\n");
355 mask &= ~ ATA_MASK_UDMA;
362 * via_tf_load - send taskfile registers to host controller
363 * @ap: Port to which output is sent
364 * @tf: ATA taskfile register set
366 * Outputs ATA taskfile to standard ATA host controller.
368 * Note: This is to fix the internal bug of via chipsets, which
369 * will reset the device register after changing the IEN bit on
372 static void via_tf_load(struct ata_port *ap, const struct ata_taskfile *tf)
374 struct ata_ioports *ioaddr = &ap->ioaddr;
375 struct via_port *vp = ap->private_data;
376 unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
379 if (tf->ctl != ap->last_ctl) {
380 iowrite8(tf->ctl, ioaddr->ctl_addr);
381 ap->last_ctl = tf->ctl;
386 if (tf->flags & ATA_TFLAG_DEVICE) {
387 iowrite8(tf->device, ioaddr->device_addr);
388 vp->cached_device = tf->device;
390 iowrite8(vp->cached_device, ioaddr->device_addr);
392 if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
393 WARN_ON_ONCE(!ioaddr->ctl_addr);
394 iowrite8(tf->hob_feature, ioaddr->feature_addr);
395 iowrite8(tf->hob_nsect, ioaddr->nsect_addr);
396 iowrite8(tf->hob_lbal, ioaddr->lbal_addr);
397 iowrite8(tf->hob_lbam, ioaddr->lbam_addr);
398 iowrite8(tf->hob_lbah, ioaddr->lbah_addr);
399 VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
408 iowrite8(tf->feature, ioaddr->feature_addr);
409 iowrite8(tf->nsect, ioaddr->nsect_addr);
410 iowrite8(tf->lbal, ioaddr->lbal_addr);
411 iowrite8(tf->lbam, ioaddr->lbam_addr);
412 iowrite8(tf->lbah, ioaddr->lbah_addr);
413 VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
424 static int via_port_start(struct ata_port *ap)
427 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
429 int ret = ata_bmdma_port_start(ap);
433 vp = devm_kzalloc(&pdev->dev, sizeof(struct via_port), GFP_KERNEL);
436 ap->private_data = vp;
440 static struct scsi_host_template via_sht = {
441 ATA_BMDMA_SHT(DRV_NAME),
444 static struct ata_port_operations via_port_ops = {
445 .inherits = &ata_bmdma_port_ops,
446 .cable_detect = via_cable_detect,
447 .set_piomode = via_set_piomode,
448 .set_dmamode = via_set_dmamode,
449 .prereset = via_pre_reset,
450 .sff_tf_load = via_tf_load,
451 .port_start = via_port_start,
452 .mode_filter = via_mode_filter,
455 static struct ata_port_operations via_port_ops_noirq = {
456 .inherits = &via_port_ops,
457 .sff_data_xfer = ata_sff_data_xfer_noirq,
461 * via_config_fifo - set up the FIFO
463 * @flags: configuration flags
465 * Set the FIFO properties for this device if necessary. Used both on
466 * set up and on and the resume path
469 static void via_config_fifo(struct pci_dev *pdev, unsigned int flags)
473 /* 0x40 low bits indicate enabled channels */
474 pci_read_config_byte(pdev, 0x40 , &enable);
477 if (flags & VIA_SET_FIFO) {
478 static const u8 fifo_setting[4] = {0x00, 0x60, 0x00, 0x20};
481 pci_read_config_byte(pdev, 0x43, &fifo);
483 /* Clear PREQ# until DDACK# for errata */
484 if (flags & VIA_BAD_PREQ)
488 /* Turn on FIFO for enabled channels */
489 fifo |= fifo_setting[enable];
490 pci_write_config_byte(pdev, 0x43, fifo);
495 * via_init_one - discovery callback
497 * @id: PCI table info
499 * A VIA IDE interface has been discovered. Figure out what revision
500 * and perform configuration work before handing it to the ATA layer
503 static int via_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
505 /* Early VIA without UDMA support */
506 static const struct ata_port_info via_mwdma_info = {
507 .flags = ATA_FLAG_SLAVE_POSS,
508 .pio_mask = ATA_PIO4,
509 .mwdma_mask = ATA_MWDMA2,
510 .port_ops = &via_port_ops
512 /* Ditto with IRQ masking required */
513 static const struct ata_port_info via_mwdma_info_borked = {
514 .flags = ATA_FLAG_SLAVE_POSS,
515 .pio_mask = ATA_PIO4,
516 .mwdma_mask = ATA_MWDMA2,
517 .port_ops = &via_port_ops_noirq,
519 /* VIA UDMA 33 devices (and borked 66) */
520 static const struct ata_port_info via_udma33_info = {
521 .flags = ATA_FLAG_SLAVE_POSS,
522 .pio_mask = ATA_PIO4,
523 .mwdma_mask = ATA_MWDMA2,
524 .udma_mask = ATA_UDMA2,
525 .port_ops = &via_port_ops
527 /* VIA UDMA 66 devices */
528 static const struct ata_port_info via_udma66_info = {
529 .flags = ATA_FLAG_SLAVE_POSS,
530 .pio_mask = ATA_PIO4,
531 .mwdma_mask = ATA_MWDMA2,
532 .udma_mask = ATA_UDMA4,
533 .port_ops = &via_port_ops
535 /* VIA UDMA 100 devices */
536 static const struct ata_port_info via_udma100_info = {
537 .flags = ATA_FLAG_SLAVE_POSS,
538 .pio_mask = ATA_PIO4,
539 .mwdma_mask = ATA_MWDMA2,
540 .udma_mask = ATA_UDMA5,
541 .port_ops = &via_port_ops
543 /* UDMA133 with bad AST (All current 133) */
544 static const struct ata_port_info via_udma133_info = {
545 .flags = ATA_FLAG_SLAVE_POSS,
546 .pio_mask = ATA_PIO4,
547 .mwdma_mask = ATA_MWDMA2,
548 .udma_mask = ATA_UDMA6, /* FIXME: should check north bridge */
549 .port_ops = &via_port_ops
551 const struct ata_port_info *ppi[] = { NULL, NULL };
553 const struct via_isa_bridge *config;
554 static int printed_version;
557 unsigned long flags = id->driver_data;
560 if (!printed_version++)
561 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
563 rc = pcim_enable_device(pdev);
567 if (flags & VIA_IDFLAG_SINGLE)
568 ppi[1] = &ata_dummy_port_info;
570 /* To find out how the IDE will behave and what features we
571 actually have to look at the bridge not the IDE controller */
572 for (config = via_isa_bridges; config->id != PCI_DEVICE_ID_VIA_ANON;
574 if ((isa = pci_get_device(PCI_VENDOR_ID_VIA +
575 !!(config->flags & VIA_BAD_ID),
576 config->id, NULL))) {
577 u8 rev = isa->revision;
580 if ((id->device == 0x0415 || id->device == 0x3164) &&
581 (config->id != id->device))
584 if (rev >= config->rev_min && rev <= config->rev_max)
588 if (!(config->flags & VIA_NO_ENABLES)) {
589 /* 0x40 low bits indicate enabled channels */
590 pci_read_config_byte(pdev, 0x40 , &enable);
596 /* Initialise the FIFO for the enabled channels. */
597 via_config_fifo(pdev, config->flags);
600 switch (config->udma_mask) {
602 if (config->flags & VIA_NO_UNMASK)
603 ppi[0] = &via_mwdma_info_borked;
605 ppi[0] = &via_mwdma_info;
608 ppi[0] = &via_udma33_info;
611 ppi[0] = &via_udma66_info;
614 ppi[0] = &via_udma100_info;
617 ppi[0] = &via_udma133_info;
624 if (config->flags & VIA_BAD_CLK66) {
625 /* Disable the 66MHz clock on problem devices */
626 pci_read_config_dword(pdev, 0x50, &timing);
628 pci_write_config_dword(pdev, 0x50, timing);
631 /* We have established the device type, now fire it up */
632 return ata_pci_bmdma_init_one(pdev, ppi, &via_sht, (void *)config, 0);
637 * via_reinit_one - reinit after resume
640 * Called when the VIA PATA device is resumed. We must then
641 * reconfigure the fifo and other setup we may have altered. In
642 * addition the kernel needs to have the resume methods on PCI
646 static int via_reinit_one(struct pci_dev *pdev)
649 struct ata_host *host = dev_get_drvdata(&pdev->dev);
650 const struct via_isa_bridge *config = host->private_data;
653 rc = ata_pci_device_do_resume(pdev);
657 via_config_fifo(pdev, config->flags);
659 if (config->udma_mask == ATA_UDMA4) {
660 /* The 66 MHz devices require we enable the clock */
661 pci_read_config_dword(pdev, 0x50, &timing);
663 pci_write_config_dword(pdev, 0x50, timing);
665 if (config->flags & VIA_BAD_CLK66) {
666 /* Disable the 66MHz clock on problem devices */
667 pci_read_config_dword(pdev, 0x50, &timing);
669 pci_write_config_dword(pdev, 0x50, timing);
672 ata_host_resume(host);
677 static const struct pci_device_id via[] = {
678 { PCI_VDEVICE(VIA, 0x0415), },
679 { PCI_VDEVICE(VIA, 0x0571), },
680 { PCI_VDEVICE(VIA, 0x0581), },
681 { PCI_VDEVICE(VIA, 0x1571), },
682 { PCI_VDEVICE(VIA, 0x3164), },
683 { PCI_VDEVICE(VIA, 0x5324), },
684 { PCI_VDEVICE(VIA, 0xC409), VIA_IDFLAG_SINGLE },
685 { PCI_VDEVICE(VIA, 0x9001), VIA_IDFLAG_SINGLE },
690 static struct pci_driver via_pci_driver = {
693 .probe = via_init_one,
694 .remove = ata_pci_remove_one,
696 .suspend = ata_pci_device_suspend,
697 .resume = via_reinit_one,
701 static int __init via_init(void)
703 return pci_register_driver(&via_pci_driver);
706 static void __exit via_exit(void)
708 pci_unregister_driver(&via_pci_driver);
711 MODULE_AUTHOR("Alan Cox");
712 MODULE_DESCRIPTION("low-level driver for VIA PATA");
713 MODULE_LICENSE("GPL");
714 MODULE_DEVICE_TABLE(pci, via);
715 MODULE_VERSION(DRV_VERSION);
717 module_init(via_init);
718 module_exit(via_exit);