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Commit 7d73a363 authored by Alan Cox's avatar Alan Cox Committed by Jeff Garzik
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libata pata_via: ACPI checks for 80wire cable 



Testing this on the VIA boards fixes several problems with otherwise
undetectable SATA bridge chips

Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent e708eb9b

drivers/ata/pata_via.c

+3 −0
Original line number Diff line number Diff line
@@ -184,6 +184,9 @@ static int via_cable_detect(struct ata_port *ap) { 
	   two drives */

	if (ata66 & (0x10100000 >> (16 * ap->port_no)))

		return ATA_CBL_PATA80;

	/* Check with ACPI so we can spot BIOS reported SATA bridges */

	if (ata_acpi_cbl_80wire(ap))

		return ATA_CBL_PATA80;

	return ATA_CBL_PATA40;

}