Mybe I am wrong, but if you are detecting 40-wire cable to set them to
DMA/33, why the check includes also 80-wire cables configuring them to
DMA/33 too?
With this patch my nvidia4 IDE controllers detects correctly and configure
correctly DMA/100 for my HD and DMA/33 for my DVD (the first uses a
80-wire cable, the second a 40-wire cable).
Am I wrong somewhere?
--- libata-core.c.orig 2007-05-20 14:31:25.000000000 +0200
+++ libata-core.c 2007-05-20 14:34:01.000000000 +0200
@@ -3901,8 +3901,7 @@
/* UDMA/44 or higher would be available */
if((ap->cbl == ATA_CBL_PATA40) ||
(ata_drive_40wire(dev->id) &&
- (ap->cbl == ATA_CBL_PATA_UNK ||
- ap->cbl == ATA_CBL_PATA80))) {
+ (ap->cbl == ATA_CBL_PATA_UNK))) {
ata_dev_printk(dev, KERN_WARNING,
"limited to UDMA/33 due to 40-wire cable\n");
xfer_mask &= ~(0xF8 << ATA_SHIFT_UDMA);
regards
Luigi
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