1/*-
2 * Copyright (c) 1998,1999,2000,2001,2002 S�ren Schmidt <sos@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: head/sys/dev/ata/ata-dma.c 94426 2002-04-11 11:04:23Z sos $
29 */
30
31#include <sys/param.h>
32#include <sys/systm.h>
33#include <sys/ata.h>
34#include <sys/bio.h>
35#include <sys/malloc.h>
36#include <sys/bus.h>

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497 word54 &= ~(0x000f000f << (devno << 2));
498 word54 |= (0x00000004 << (devno << 2));
499 pci_write_config(parent, 0x54, word54, 4);
500 atadev->mode = ATA_PIO0 + apiomode;
501 return;
502 }
503 break;
504
505 case 0x74411022: /* AMD 768 */
506 case 0x74111022: /* AMD 766 */
507 if (udmamode >= 5) {
508 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
509 ATA_UDMA5, ATA_C_F_SETXFER, ATA_WAIT_READY);
510 if (bootverbose)
511 ata_prtdev(atadev, "%s setting UDMA5 on AMD chip\n",
512 (error) ? "failed" : "success");
513 if (!error) {
514 pci_write_config(parent, 0x53 - devno, 0xc6, 1);
515 ata_dmacreate(atadev, apiomode, ATA_UDMA5);
516 return;
517 }
518 }
519 /* FALLTHROUGH */
520
521 case 0x74091022: /* AMD 756 */
522 if (udmamode >= 4) {
523 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
524 ATA_UDMA4, ATA_C_F_SETXFER, ATA_WAIT_READY);
525 if (bootverbose)
526 ata_prtdev(atadev, "%s setting UDMA4 on AMD chip\n",
527 (error) ? "failed" : "success");
528 if (!error) {
529 pci_write_config(parent, 0x53 - devno, 0xc5, 1);
530 ata_dmacreate(atadev, apiomode, ATA_UDMA4);
531 return;
532 }
533 }
534 goto via_82c586;
535
536 case 0x05711106: /* VIA 82C571, 82C586, 82C596, 82C686 , 8231, 8233 */
537 {
538 int via_modes[4][7] = {
539 { 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, 0x00 }, /* ATA33 */
540 { 0x00, 0x00, 0xea, 0x00, 0xe8, 0x00, 0x00 }, /* ATA66 */
541 { 0x00, 0x00, 0xf4, 0x00, 0xf1, 0xf0, 0x00 }, /* ATA100 */
542 { 0x00, 0x00, 0xf6, 0x00, 0xf2, 0xf1, 0xf0 }}; /* ATA133 */
543 int *reg_val = NULL;
544
545 if (ata_find_dev(parent, 0x31471106, 0)) { /* 8233a */
546 udmamode = imin(udmamode, 6);
547 reg_val = via_modes[3];
548 }
549 else if (ata_find_dev(parent, 0x06861106, 0x40) || /* 82C686b */
550 ata_find_dev(parent, 0x82311106, 0) || /* 8231 */
551 ata_find_dev(parent, 0x30741106, 0) || /* 8233 */

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559 reg_val = via_modes[1];
560 }
561 else if (ata_find_dev(parent, 0x06861106, 0)) { /* 82C686 */
562 udmamode = imin(udmamode, 2);
563 reg_val = via_modes[1];
564 }
565 else if (ata_find_dev(parent, 0x05961106, 0) || /* 82C596a */
566 ata_find_dev(parent, 0x05861106, 0x03)) { /* 82C586b */
567via_82c586:
568 udmamode = imin(udmamode, 2);
569 reg_val = via_modes[0];
570 }
571 else
572 udmamode = 0;
573
574 if (udmamode >= 6) {
575 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
576 ATA_UDMA6, ATA_C_F_SETXFER, ATA_WAIT_READY);
577 if (bootverbose)
578 ata_prtdev(atadev, "%s setting UDMA6 on VIA chip\n",
579 (error) ? "failed" : "success");
580 if (!error) {
581 pci_write_config(parent, 0x53 - devno, reg_val[6], 1);
582 ata_dmacreate(atadev, apiomode, ATA_UDMA6);
583 return;
584 }
585 }
586 if (udmamode >= 5) {
587 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
588 ATA_UDMA5, ATA_C_F_SETXFER, ATA_WAIT_READY);
589 if (bootverbose)
590 ata_prtdev(atadev, "%s setting UDMA5 on VIA chip\n",
591 (error) ? "failed" : "success");
592 if (!error) {
593 pci_write_config(parent, 0x53 - devno, reg_val[5], 1);
594 ata_dmacreate(atadev, apiomode, ATA_UDMA5);
595 return;
596 }
597 }
598 if (udmamode >= 4) {
599 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
600 ATA_UDMA4, ATA_C_F_SETXFER, ATA_WAIT_READY);
601 if (bootverbose)
602 ata_prtdev(atadev, "%s setting UDMA4 on VIA chip\n",
603 (error) ? "failed" : "success");
604 if (!error) {
605 pci_write_config(parent, 0x53 - devno, reg_val[4], 1);
606 ata_dmacreate(atadev, apiomode, ATA_UDMA4);
607 return;
608 }
609 }
610 if (udmamode >= 2) {
611 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
612 ATA_UDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
613 if (bootverbose)
614 ata_prtdev(atadev, "%s setting UDMA2 on VIA chip\n",
615 (error) ? "failed" : "success");
616 if (!error) {
617 pci_write_config(parent, 0x53 - devno, reg_val[2], 1);
618 ata_dmacreate(atadev, apiomode, ATA_UDMA2);
619 return;
620 }
621 }
622
623 }
624 if (wdmamode >= 2 && apiomode >= 4) {
625 error = ata_command(atadev, ATA_C_SETFEATURES, 0,
626 ATA_WDMA2, ATA_C_F_SETXFER, ATA_WAIT_READY);
627 if (bootverbose)
628 ata_prtdev(atadev, "%s setting WDMA2 on %s chip\n",
629 (error) ? "failed" : "success",
630 (chiptype == 0x74091022) ? "AMD" : "VIA");
631 if (!error) {
632 pci_write_config(parent, 0x53 - devno, 0x0b, 1);
633 pci_write_config(parent, 0x4b - devno, 0x31, 1);
634 ata_dmacreate(atadev, apiomode, ATA_WDMA2);
635 return;
636 }
637 }
638 /* we could set PIO mode timings, but we assume the BIOS did that */
639 break;
640
641 case 0x55131039: /* SiS 5591 */
642 if (ata_find_dev(parent, 0x06301039, 0x30) || /* SiS 630 */
643 ata_find_dev(parent, 0x06331039, 0) || /* SiS 633 */

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