Commit 24a01453 authored by Sergei Shtylyov's avatar Sergei Shtylyov Committed by Jeff Garzik

pata_sl82c105: wrong assumptions about compatible PIO modes

Fix the wrong "compatible" PIO mode choices: MWDMA0 has 480 ns cycle while PIO1
only has 383 ns cycle, and MWDMA2 timings matchs those of PIO4 exactly.
Signed-off-by: default avatarJeff Garzik <[email protected]>
parent 246ce3b6
......@@ -139,13 +139,13 @@ static void sl82c105_set_dmamode(struct ata_port *ap, struct ata_device *adev)
{
switch(adev->dma_mode) {
case XFER_MW_DMA_0:
sl82c105_configure_piomode(ap, adev, 1);
sl82c105_configure_piomode(ap, adev, 0);
break;
case XFER_MW_DMA_1:
sl82c105_configure_piomode(ap, adev, 3);
break;
case XFER_MW_DMA_2:
sl82c105_configure_piomode(ap, adev, 3);
sl82c105_configure_piomode(ap, adev, 4);
break;
default:
BUG();
......
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