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pata_atiixp: propogate cable detection hack from drivers/ide to the new driver

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Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan 2007-01-31 17:10:46 +00:00 committed by Jeff Garzik
parent 7728098967
commit 54494f3a83
1 changed files with 9 additions and 2 deletions
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11
drivers/ata/pata_atiixp.c
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@ -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);
}