2 * sata_promise.c - Promise SATA
4 * Maintained by: Jeff Garzik <jgarzik@pobox.com>
5 * Please ALWAYS copy linux-ide@vger.kernel.org
8 * Copyright 2003-2004 Red Hat, Inc.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; see the file COPYING. If not, write to
23 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
26 * libata documentation is available via 'make {ps|pdf}docs',
27 * as Documentation/DocBook/libata.*
29 * Hardware information only available under NDA.
33 #include <linux/kernel.h>
34 #include <linux/module.h>
35 #include <linux/pci.h>
36 #include <linux/init.h>
37 #include <linux/blkdev.h>
38 #include <linux/delay.h>
39 #include <linux/interrupt.h>
40 #include <linux/sched.h>
41 #include <linux/device.h>
42 #include <scsi/scsi_host.h>
43 #include <scsi/scsi_cmnd.h>
44 #include <linux/libata.h>
46 #include "sata_promise.h"
48 #define DRV_NAME "sata_promise"
49 #define DRV_VERSION "1.04"
53 PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */
54 PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */
55 PDC_TBG_MODE = 0x41, /* TBG mode */
56 PDC_FLASH_CTL = 0x44, /* Flash control register */
57 PDC_PCI_CTL = 0x48, /* PCI control and status register */
58 PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */
59 PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */
60 PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */
61 PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */
62 PDC_SLEW_CTL = 0x470, /* slew rate control reg */
64 PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) |
65 (1<<8) | (1<<9) | (1<<10),
67 board_2037x = 0, /* FastTrak S150 TX2plus */
68 board_20319 = 1, /* FastTrak S150 TX4 */
69 board_20619 = 2, /* FastTrak TX4000 */
70 board_20771 = 3, /* FastTrak TX2300 */
71 board_2057x = 4, /* SATAII150 Tx2plus */
72 board_40518 = 5, /* SATAII150 Tx4 */
74 PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */
76 PDC_RESET = (1 << 11), /* HDMA reset */
78 PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST |
79 ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI |
84 struct pdc_port_priv {
89 struct pdc_host_priv {
93 static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg);
94 static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
95 static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
96 static irqreturn_t pdc_interrupt (int irq, void *dev_instance);
97 static void pdc_eng_timeout(struct ata_port *ap);
98 static int pdc_port_start(struct ata_port *ap);
99 static void pdc_port_stop(struct ata_port *ap);
100 static void pdc_pata_phy_reset(struct ata_port *ap);
101 static void pdc_sata_phy_reset(struct ata_port *ap);
102 static void pdc_qc_prep(struct ata_queued_cmd *qc);
103 static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
104 static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf);
105 static void pdc_irq_clear(struct ata_port *ap);
106 static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc);
107 static void pdc_host_stop(struct ata_host *host);
110 static struct scsi_host_template pdc_ata_sht = {
111 .module = THIS_MODULE,
113 .ioctl = ata_scsi_ioctl,
114 .queuecommand = ata_scsi_queuecmd,
115 .can_queue = ATA_DEF_QUEUE,
116 .this_id = ATA_SHT_THIS_ID,
117 .sg_tablesize = LIBATA_MAX_PRD,
118 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
119 .emulated = ATA_SHT_EMULATED,
120 .use_clustering = ATA_SHT_USE_CLUSTERING,
121 .proc_name = DRV_NAME,
122 .dma_boundary = ATA_DMA_BOUNDARY,
123 .slave_configure = ata_scsi_slave_config,
124 .slave_destroy = ata_scsi_slave_destroy,
125 .bios_param = ata_std_bios_param,
128 static const struct ata_port_operations pdc_sata_ops = {
129 .port_disable = ata_port_disable,
130 .tf_load = pdc_tf_load_mmio,
131 .tf_read = ata_tf_read,
132 .check_status = ata_check_status,
133 .exec_command = pdc_exec_command_mmio,
134 .dev_select = ata_std_dev_select,
136 .phy_reset = pdc_sata_phy_reset,
138 .qc_prep = pdc_qc_prep,
139 .qc_issue = pdc_qc_issue_prot,
140 .eng_timeout = pdc_eng_timeout,
141 .data_xfer = ata_mmio_data_xfer,
142 .irq_handler = pdc_interrupt,
143 .irq_clear = pdc_irq_clear,
145 .scr_read = pdc_sata_scr_read,
146 .scr_write = pdc_sata_scr_write,
147 .port_start = pdc_port_start,
148 .port_stop = pdc_port_stop,
149 .host_stop = pdc_host_stop,
152 static const struct ata_port_operations pdc_pata_ops = {
153 .port_disable = ata_port_disable,
154 .tf_load = pdc_tf_load_mmio,
155 .tf_read = ata_tf_read,
156 .check_status = ata_check_status,
157 .exec_command = pdc_exec_command_mmio,
158 .dev_select = ata_std_dev_select,
160 .phy_reset = pdc_pata_phy_reset,
162 .qc_prep = pdc_qc_prep,
163 .qc_issue = pdc_qc_issue_prot,
164 .data_xfer = ata_mmio_data_xfer,
165 .eng_timeout = pdc_eng_timeout,
166 .irq_handler = pdc_interrupt,
167 .irq_clear = pdc_irq_clear,
169 .port_start = pdc_port_start,
170 .port_stop = pdc_port_stop,
171 .host_stop = pdc_host_stop,
174 static const struct ata_port_info pdc_port_info[] = {
178 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
179 .pio_mask = 0x1f, /* pio0-4 */
180 .mwdma_mask = 0x07, /* mwdma0-2 */
181 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
182 .port_ops = &pdc_sata_ops,
188 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
189 .pio_mask = 0x1f, /* pio0-4 */
190 .mwdma_mask = 0x07, /* mwdma0-2 */
191 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
192 .port_ops = &pdc_sata_ops,
198 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS,
199 .pio_mask = 0x1f, /* pio0-4 */
200 .mwdma_mask = 0x07, /* mwdma0-2 */
201 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
202 .port_ops = &pdc_pata_ops,
208 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
209 .pio_mask = 0x1f, /* pio0-4 */
210 .mwdma_mask = 0x07, /* mwdma0-2 */
211 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
212 .port_ops = &pdc_sata_ops,
218 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
219 .pio_mask = 0x1f, /* pio0-4 */
220 .mwdma_mask = 0x07, /* mwdma0-2 */
221 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
222 .port_ops = &pdc_sata_ops,
228 .flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA,
229 .pio_mask = 0x1f, /* pio0-4 */
230 .mwdma_mask = 0x07, /* mwdma0-2 */
231 .udma_mask = 0x7f, /* udma0-6 ; FIXME */
232 .port_ops = &pdc_sata_ops,
236 static const struct pci_device_id pdc_ata_pci_tbl[] = {
237 { PCI_VDEVICE(PROMISE, 0x3371), board_2037x },
238 { PCI_VDEVICE(PROMISE, 0x3570), board_2037x },
239 { PCI_VDEVICE(PROMISE, 0x3571), board_2037x },
240 { PCI_VDEVICE(PROMISE, 0x3373), board_2037x },
241 { PCI_VDEVICE(PROMISE, 0x3375), board_2037x },
242 { PCI_VDEVICE(PROMISE, 0x3376), board_2037x },
243 { PCI_VDEVICE(PROMISE, 0x3574), board_2057x },
244 { PCI_VDEVICE(PROMISE, 0x3d75), board_2057x },
245 { PCI_VDEVICE(PROMISE, 0x3d73), board_2037x },
247 { PCI_VDEVICE(PROMISE, 0x3318), board_20319 },
248 { PCI_VDEVICE(PROMISE, 0x3319), board_20319 },
249 { PCI_VDEVICE(PROMISE, 0x3515), board_20319 },
250 { PCI_VDEVICE(PROMISE, 0x3519), board_20319 },
251 { PCI_VDEVICE(PROMISE, 0x3d17), board_20319 },
252 { PCI_VDEVICE(PROMISE, 0x3d18), board_40518 },
254 { PCI_VDEVICE(PROMISE, 0x6629), board_20619 },
256 /* TODO: remove all associated board_20771 code, as it completely
257 * duplicates board_2037x code, unless reason for separation can be
261 { PCI_VDEVICE(PROMISE, 0x3570), board_20771 },
263 { PCI_VDEVICE(PROMISE, 0x3577), board_20771 },
265 { } /* terminate list */
269 static struct pci_driver pdc_ata_pci_driver = {
271 .id_table = pdc_ata_pci_tbl,
272 .probe = pdc_ata_init_one,
273 .remove = ata_pci_remove_one,
277 static int pdc_port_start(struct ata_port *ap)
279 struct device *dev = ap->host->dev;
280 struct pdc_port_priv *pp;
283 rc = ata_port_start(ap);
287 pp = kzalloc(sizeof(*pp), GFP_KERNEL);
293 pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL);
299 ap->private_data = pp;
311 static void pdc_port_stop(struct ata_port *ap)
313 struct device *dev = ap->host->dev;
314 struct pdc_port_priv *pp = ap->private_data;
316 ap->private_data = NULL;
317 dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma);
323 static void pdc_host_stop(struct ata_host *host)
325 struct pdc_host_priv *hp = host->private_data;
327 ata_pci_host_stop(host);
333 static void pdc_reset_port(struct ata_port *ap)
335 void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT;
339 for (i = 11; i > 0; i--) {
352 readl(mmio); /* flush */
355 static void pdc_sata_phy_reset(struct ata_port *ap)
361 static void pdc_pata_cbl_detect(struct ata_port *ap)
364 void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03;
369 ap->cbl = ATA_CBL_PATA40;
370 ap->udma_mask &= ATA_UDMA_MASK_40C;
372 ap->cbl = ATA_CBL_PATA80;
375 static void pdc_pata_phy_reset(struct ata_port *ap)
377 pdc_pata_cbl_detect(ap);
383 static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg)
385 if (sc_reg > SCR_CONTROL)
387 return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
391 static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg,
394 if (sc_reg > SCR_CONTROL)
396 writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4));
399 static void pdc_qc_prep(struct ata_queued_cmd *qc)
401 struct pdc_port_priv *pp = qc->ap->private_data;
406 switch (qc->tf.protocol) {
411 case ATA_PROT_NODATA:
412 i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma,
413 qc->dev->devno, pp->pkt);
415 if (qc->tf.flags & ATA_TFLAG_LBA48)
416 i = pdc_prep_lba48(&qc->tf, pp->pkt, i);
418 i = pdc_prep_lba28(&qc->tf, pp->pkt, i);
420 pdc_pkt_footer(&qc->tf, pp->pkt, i);
428 static void pdc_eng_timeout(struct ata_port *ap)
430 struct ata_host *host = ap->host;
432 struct ata_queued_cmd *qc;
437 spin_lock_irqsave(&host->lock, flags);
439 qc = ata_qc_from_tag(ap, ap->active_tag);
441 switch (qc->tf.protocol) {
443 case ATA_PROT_NODATA:
444 ata_port_printk(ap, KERN_ERR, "command timeout\n");
445 drv_stat = ata_wait_idle(ap);
446 qc->err_mask |= __ac_err_mask(drv_stat);
450 drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000);
452 ata_port_printk(ap, KERN_ERR,
453 "unknown timeout, cmd 0x%x stat 0x%x\n",
454 qc->tf.command, drv_stat);
456 qc->err_mask |= ac_err_mask(drv_stat);
460 spin_unlock_irqrestore(&host->lock, flags);
461 ata_eh_qc_complete(qc);
465 static inline unsigned int pdc_host_intr( struct ata_port *ap,
466 struct ata_queued_cmd *qc)
468 unsigned int handled = 0;
470 void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL;
473 if (tmp & PDC_ERR_MASK) {
474 qc->err_mask |= AC_ERR_DEV;
478 switch (qc->tf.protocol) {
480 case ATA_PROT_NODATA:
481 qc->err_mask |= ac_err_mask(ata_wait_idle(ap));
487 ap->stats.idle_irq++;
494 static void pdc_irq_clear(struct ata_port *ap)
496 struct ata_host *host = ap->host;
497 void __iomem *mmio = host->mmio_base;
499 readl(mmio + PDC_INT_SEQMASK);
502 static irqreturn_t pdc_interrupt (int irq, void *dev_instance)
504 struct ata_host *host = dev_instance;
508 unsigned int handled = 0;
509 void __iomem *mmio_base;
513 if (!host || !host->mmio_base) {
514 VPRINTK("QUICK EXIT\n");
518 mmio_base = host->mmio_base;
520 /* reading should also clear interrupts */
521 mask = readl(mmio_base + PDC_INT_SEQMASK);
523 if (mask == 0xffffffff) {
524 VPRINTK("QUICK EXIT 2\n");
528 spin_lock(&host->lock);
530 mask &= 0xffff; /* only 16 tags possible */
532 VPRINTK("QUICK EXIT 3\n");
536 writel(mask, mmio_base + PDC_INT_SEQMASK);
538 for (i = 0; i < host->n_ports; i++) {
539 VPRINTK("port %u\n", i);
541 tmp = mask & (1 << (i + 1));
543 !(ap->flags & ATA_FLAG_DISABLED)) {
544 struct ata_queued_cmd *qc;
546 qc = ata_qc_from_tag(ap, ap->active_tag);
547 if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING)))
548 handled += pdc_host_intr(ap, qc);
555 spin_unlock(&host->lock);
556 return IRQ_RETVAL(handled);
559 static inline void pdc_packet_start(struct ata_queued_cmd *qc)
561 struct ata_port *ap = qc->ap;
562 struct pdc_port_priv *pp = ap->private_data;
563 unsigned int port_no = ap->port_no;
564 u8 seq = (u8) (port_no + 1);
566 VPRINTK("ENTER, ap %p\n", ap);
568 writel(0x00000001, ap->host->mmio_base + (seq * 4));
569 readl(ap->host->mmio_base + (seq * 4)); /* flush */
572 wmb(); /* flush PRD, pkt writes */
573 writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT);
574 readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */
577 static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc)
579 switch (qc->tf.protocol) {
581 case ATA_PROT_NODATA:
582 pdc_packet_start(qc);
585 case ATA_PROT_ATAPI_DMA:
593 return ata_qc_issue_prot(qc);
596 static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
598 WARN_ON (tf->protocol == ATA_PROT_DMA ||
599 tf->protocol == ATA_PROT_NODATA);
604 static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf)
606 WARN_ON (tf->protocol == ATA_PROT_DMA ||
607 tf->protocol == ATA_PROT_NODATA);
608 ata_exec_command(ap, tf);
612 static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base)
614 port->cmd_addr = base;
615 port->data_addr = base;
617 port->error_addr = base + 0x4;
618 port->nsect_addr = base + 0x8;
619 port->lbal_addr = base + 0xc;
620 port->lbam_addr = base + 0x10;
621 port->lbah_addr = base + 0x14;
622 port->device_addr = base + 0x18;
624 port->status_addr = base + 0x1c;
625 port->altstatus_addr =
626 port->ctl_addr = base + 0x38;
630 static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe)
632 void __iomem *mmio = pe->mmio_base;
633 struct pdc_host_priv *hp = pe->private_data;
634 int hotplug_offset = hp->hotplug_offset;
638 * Except for the hotplug stuff, this is voodoo from the
639 * Promise driver. Label this entire section
640 * "TODO: figure out why we do this"
643 /* change FIFO_SHD to 8 dwords, enable BMR_BURST */
644 tmp = readl(mmio + PDC_FLASH_CTL);
645 tmp |= 0x12000; /* bit 16 (fifo 8 dw) and 13 (bmr burst?) */
646 writel(tmp, mmio + PDC_FLASH_CTL);
648 /* clear plug/unplug flags for all ports */
649 tmp = readl(mmio + hotplug_offset);
650 writel(tmp | 0xff, mmio + hotplug_offset);
652 /* mask plug/unplug ints */
653 tmp = readl(mmio + hotplug_offset);
654 writel(tmp | 0xff0000, mmio + hotplug_offset);
656 /* reduce TBG clock to 133 Mhz. */
657 tmp = readl(mmio + PDC_TBG_MODE);
658 tmp &= ~0x30000; /* clear bit 17, 16*/
659 tmp |= 0x10000; /* set bit 17:16 = 0:1 */
660 writel(tmp, mmio + PDC_TBG_MODE);
662 readl(mmio + PDC_TBG_MODE); /* flush */
665 /* adjust slew rate control register. */
666 tmp = readl(mmio + PDC_SLEW_CTL);
667 tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */
668 tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */
669 writel(tmp, mmio + PDC_SLEW_CTL);
672 static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
674 static int printed_version;
675 struct ata_probe_ent *probe_ent = NULL;
676 struct pdc_host_priv *hp;
678 void __iomem *mmio_base;
679 unsigned int board_idx = (unsigned int) ent->driver_data;
680 int pci_dev_busy = 0;
683 if (!printed_version++)
684 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
686 rc = pci_enable_device(pdev);
690 rc = pci_request_regions(pdev, DRV_NAME);
696 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
698 goto err_out_regions;
699 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
701 goto err_out_regions;
703 probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL);
704 if (probe_ent == NULL) {
706 goto err_out_regions;
709 probe_ent->dev = pci_dev_to_dev(pdev);
710 INIT_LIST_HEAD(&probe_ent->node);
712 mmio_base = pci_iomap(pdev, 3, 0);
713 if (mmio_base == NULL) {
715 goto err_out_free_ent;
717 base = (unsigned long) mmio_base;
719 hp = kzalloc(sizeof(*hp), GFP_KERNEL);
722 goto err_out_free_ent;
725 /* Set default hotplug offset */
726 hp->hotplug_offset = PDC_SATA_PLUG_CSR;
727 probe_ent->private_data = hp;
729 probe_ent->sht = pdc_port_info[board_idx].sht;
730 probe_ent->port_flags = pdc_port_info[board_idx].flags;
731 probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask;
732 probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask;
733 probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask;
734 probe_ent->port_ops = pdc_port_info[board_idx].port_ops;
736 probe_ent->irq = pdev->irq;
737 probe_ent->irq_flags = IRQF_SHARED;
738 probe_ent->mmio_base = mmio_base;
740 pdc_ata_setup_port(&probe_ent->port[0], base + 0x200);
741 pdc_ata_setup_port(&probe_ent->port[1], base + 0x280);
743 probe_ent->port[0].scr_addr = base + 0x400;
744 probe_ent->port[1].scr_addr = base + 0x500;
746 /* notice 4-port boards */
749 /* Override hotplug offset for SATAII150 */
750 hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
753 probe_ent->n_ports = 4;
755 pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
756 pdc_ata_setup_port(&probe_ent->port[3], base + 0x380);
758 probe_ent->port[2].scr_addr = base + 0x600;
759 probe_ent->port[3].scr_addr = base + 0x700;
762 /* Override hotplug offset for SATAII150 */
763 hp->hotplug_offset = PDC2_SATA_PLUG_CSR;
766 probe_ent->n_ports = 2;
769 probe_ent->n_ports = 2;
772 probe_ent->n_ports = 4;
774 pdc_ata_setup_port(&probe_ent->port[2], base + 0x300);
775 pdc_ata_setup_port(&probe_ent->port[3], base + 0x380);
777 probe_ent->port[2].scr_addr = base + 0x600;
778 probe_ent->port[3].scr_addr = base + 0x700;
785 pci_set_master(pdev);
787 /* initialize adapter */
788 pdc_host_init(board_idx, probe_ent);
790 /* FIXME: Need any other frees than hp? */
791 if (!ata_device_add(probe_ent))
801 pci_release_regions(pdev);
804 pci_disable_device(pdev);
809 static int __init pdc_ata_init(void)
811 return pci_register_driver(&pdc_ata_pci_driver);
815 static void __exit pdc_ata_exit(void)
817 pci_unregister_driver(&pdc_ata_pci_driver);
821 MODULE_AUTHOR("Jeff Garzik");
822 MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver");
823 MODULE_LICENSE("GPL");
824 MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl);
825 MODULE_VERSION(DRV_VERSION);
827 module_init(pdc_ata_init);
828 module_exit(pdc_ata_exit);