pata_via: clear UDMA transfer mode bit for PIO and MWDMA
Fix register naming while at it. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -303,14 +303,21 @@ static void via_do_set_mode(struct ata_port *ap, struct ata_device *adev, int mo
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}
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/* Set UDMA unless device is not UDMA capable */
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if (udma_type && t.udma) {
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u8 cable80_status;
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if (udma_type) {
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u8 udma_etc;
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/* Get 80-wire cable detection bit */
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pci_read_config_byte(pdev, 0x50 + offset, &cable80_status);
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cable80_status &= 0x10;
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pci_read_config_byte(pdev, 0x50 + offset, &udma_etc);
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pci_write_config_byte(pdev, 0x50 + offset, ut | cable80_status);
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/* clear transfer mode bit */
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udma_etc &= ~0x20;
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if (t.udma) {
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/* preserve 80-wire cable detection bit */
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udma_etc &= 0x10;
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udma_etc |= ut;
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}
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pci_write_config_byte(pdev, 0x50 + offset, udma_etc);
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}
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}
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