aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/ide/pci/alim15x3.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/ide/pci/alim15x3.c')
-rw-r--r--drivers/ide/pci/alim15x3.c109
1 files changed, 54 insertions, 55 deletions
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 8ee2b48d105d..a607dd31a64c 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * linux/drivers/ide/pci/alim15x3.c Version 0.27 Aug 27 2007 2 * linux/drivers/ide/pci/alim15x3.c Version 0.29 Sep 16 2007
3 * 3 *
4 * Copyright (C) 1998-2000 Michel Aubry, Maintainer 4 * Copyright (C) 1998-2000 Michel Aubry, Maintainer
5 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer 5 * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
@@ -492,6 +492,13 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
492 * clear bit 7 492 * clear bit 7
493 */ 493 */
494 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F); 494 pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
495 /*
496 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
497 */
498 if (m5229_revision >= 0x20 && isa_dev) {
499 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
500 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
501 }
495 goto out; 502 goto out;
496 } 503 }
497 504
@@ -537,7 +544,30 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
537 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02); 544 pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
538 } 545 }
539 } 546 }
547
540out: 548out:
549 /*
550 * CD_ROM DMA on (m5229, 0x53, bit0)
551 * Enable this bit even if we want to use PIO.
552 * PIO FIFO off (m5229, 0x53, bit1)
553 * The hardware will use 0x54h and 0x55h to control PIO FIFO.
554 * (Not on later devices it seems)
555 *
556 * 0x53 changes meaning on later revs - we must no touch
557 * bit 1 on them. Need to check if 0x20 is the right break.
558 */
559 if (m5229_revision >= 0x20) {
560 pci_read_config_byte(dev, 0x53, &tmpbyte);
561
562 if (m5229_revision <= 0x20)
563 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
564 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
565 tmpbyte |= 0x03;
566 else
567 tmpbyte |= 0x01;
568
569 pci_write_config_byte(dev, 0x53, tmpbyte);
570 }
541 pci_dev_put(north); 571 pci_dev_put(north);
542 pci_dev_put(isa_dev); 572 pci_dev_put(isa_dev);
543 local_irq_restore(flags); 573 local_irq_restore(flags);
@@ -616,36 +646,8 @@ static u8 __devinit ata66_ali15x3(ide_hwif_t *hwif)
616 if ((tmpbyte & (1 << hwif->channel)) == 0) 646 if ((tmpbyte & (1 << hwif->channel)) == 0)
617 cbl = ATA_CBL_PATA80; 647 cbl = ATA_CBL_PATA80;
618 } 648 }
619 } else {
620 /*
621 * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
622 */
623 pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
624 chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
625 } 649 }
626 650
627 /*
628 * CD_ROM DMA on (m5229, 0x53, bit0)
629 * Enable this bit even if we want to use PIO
630 * PIO FIFO off (m5229, 0x53, bit1)
631 * The hardware will use 0x54h and 0x55h to control PIO FIFO
632 * (Not on later devices it seems)
633 *
634 * 0x53 changes meaning on later revs - we must no touch
635 * bit 1 on them. Need to check if 0x20 is the right break
636 */
637
638 pci_read_config_byte(dev, 0x53, &tmpbyte);
639
640 if(m5229_revision <= 0x20)
641 tmpbyte = (tmpbyte & (~0x02)) | 0x01;
642 else if (m5229_revision == 0xc7 || m5229_revision == 0xc8)
643 tmpbyte |= 0x03;
644 else
645 tmpbyte |= 0x01;
646
647 pci_write_config_byte(dev, 0x53, tmpbyte);
648
649 local_irq_restore(flags); 651 local_irq_restore(flags);
650 652
651 return cbl; 653 return cbl;
@@ -664,31 +666,9 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
664 hwif->set_dma_mode = &ali_set_dma_mode; 666 hwif->set_dma_mode = &ali_set_dma_mode;
665 hwif->udma_filter = &ali_udma_filter; 667 hwif->udma_filter = &ali_udma_filter;
666 668
667 /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
668 if (m5229_revision <= 0xC4)
669 hwif->host_flags |= IDE_HFLAG_NO_LBA48_DMA;
670
671 if (hwif->dma_base == 0) 669 if (hwif->dma_base == 0)
672 return; 670 return;
673 671
674 /*
675 * check in ->init_dma guarantees m5229_revision >= 0x20 here
676 */
677
678 if (m5229_revision == 0x20)
679 hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
680
681 if (m5229_revision <= 0x20)
682 hwif->ultra_mask = 0x00; /* no udma */
683 else if (m5229_revision < 0xC2)
684 hwif->ultra_mask = ATA_UDMA2;
685 else if (m5229_revision == 0xC2 || m5229_revision == 0xC3)
686 hwif->ultra_mask = ATA_UDMA4;
687 else if (m5229_revision == 0xC4)
688 hwif->ultra_mask = ATA_UDMA5;
689 else
690 hwif->ultra_mask = ATA_UDMA6;
691
692 hwif->dma_setup = &ali15x3_dma_setup; 672 hwif->dma_setup = &ali15x3_dma_setup;
693 673
694 if (hwif->cbl != ATA_CBL_PATA40_SHORT) 674 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
@@ -766,7 +746,7 @@ static void __devinit init_dma_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
766 ide_setup_dma(hwif, dmabase, 8); 746 ide_setup_dma(hwif, dmabase, 8);
767} 747}
768 748
769static ide_pci_device_t ali15x3_chipset __devinitdata = { 749static const struct ide_port_info ali15x3_chipset __devinitdata = {
770 .name = "ALI15X3", 750 .name = "ALI15X3",
771 .init_chipset = init_chipset_ali15x3, 751 .init_chipset = init_chipset_ali15x3,
772 .init_hwif = init_hwif_ali15x3, 752 .init_hwif = init_hwif_ali15x3,
@@ -792,15 +772,34 @@ static int __devinit alim15x3_init_one(struct pci_dev *dev, const struct pci_dev
792 { }, 772 { },
793 }; 773 };
794 774
795 ide_pci_device_t *d = &ali15x3_chipset; 775 struct ide_port_info d = ali15x3_chipset;
776 u8 rev = dev->revision;
796 777
797 if (pci_dev_present(ati_rs100)) 778 if (pci_dev_present(ati_rs100))
798 printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n"); 779 printk(KERN_WARNING "alim15x3: ATI Radeon IGP Northbridge is not yet fully tested.\n");
799 780
781 /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
782 if (rev <= 0xC4)
783 d.host_flags |= IDE_HFLAG_NO_LBA48_DMA;
784
785 if (rev >= 0x20) {
786 if (rev == 0x20)
787 d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
788
789 if (rev < 0xC2)
790 d.udma_mask = ATA_UDMA2;
791 else if (rev == 0xC2 || rev == 0xC3)
792 d.udma_mask = ATA_UDMA4;
793 else if (rev == 0xC4)
794 d.udma_mask = ATA_UDMA5;
795 else
796 d.udma_mask = ATA_UDMA6;
797 }
798
800#if defined(CONFIG_SPARC64) 799#if defined(CONFIG_SPARC64)
801 d->init_hwif = init_hwif_common_ali15x3; 800 d.init_hwif = init_hwif_common_ali15x3;
802#endif /* CONFIG_SPARC64 */ 801#endif /* CONFIG_SPARC64 */
803 return ide_setup_pci_device(dev, d); 802 return ide_setup_pci_device(dev, &d);
804} 803}
805 804
806 805