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authorAlan <alan@lxorguk.ukuu.org.uk>2007-01-31 17:10:46 +0000
committerJeff Garzik <jeff@garzik.org>2007-02-02 11:52:05 -0500
commit54494f3a8339baad5e8f9d9b87d3ea6a3aa4f540 (patch)
treeb8d23297e66fcde3b2c5396dcc5a82827274e434
parent77280989673ee1ef736a92617f52e2be45651833 (diff)
downloadlinux-sh-54494f3a8339baad5e8f9d9b87d3ea6a3aa4f540.tar.gz
pata_atiixp: propogate cable detection hack from drivers/ide to the new driver
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--drivers/ata/pata_atiixp.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/ata/pata_atiixp.c b/drivers/ata/pata_atiixp.c
index 6f6672c55131..504e1dbfffd7 100644
--- a/drivers/ata/pata_atiixp.c
+++ b/drivers/ata/pata_atiixp.c
@@ -36,15 +36,22 @@ enum {
static int atiixp_pre_reset(struct ata_port *ap)
{
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
- static struct pci_bits atiixp_enable_bits[] = {
+ static const struct pci_bits atiixp_enable_bits[] = {
{ 0x48, 1, 0x01, 0x00 },
{ 0x48, 1, 0x08, 0x00 }
};
+ u8 udma;
if (!pci_test_config_bits(pdev, &atiixp_enable_bits[ap->port_no]))
return -ENOENT;
- ap->cbl = ATA_CBL_PATA80;
+ /* Hack from drivers/ide/pci. Really we want to know how to do the
+ raw detection not play follow the bios mode guess */
+ pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ap->port_no, &udma);
+ if ((udma & 0x07) >= 0x04 || (udma & 0x70) >= 0x40)
+ ap->cbl = ATA_CBL_PATA80;
+ else
+ ap->cbl = ATA_CBL_PATA40;
return ata_std_prereset(ap);
}