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libata pata_via: ACPI checks for 80wire cable
author
Alan Cox
<alan@lxorguk.ukuu.org.uk>
Thu, 26 Jul 2007 17:38:06 +0000
(18:38 +0100)
committer
Jeff Garzik
<jeff@garzik.org>
Fri, 12 Oct 2007 18:55:34 +0000
(14:55 -0400)
Testing this on the VIA boards fixes several problems with otherwise
undetectable SATA bridge chips
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
drivers/ata/pata_via.c
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diff --git
a/drivers/ata/pata_via.c
b/drivers/ata/pata_via.c
index
4ddcae8
..
f11b87e
100644
(file)
--- a/
drivers/ata/pata_via.c
+++ b/
drivers/ata/pata_via.c
@@
-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;
}