pata_sis: FIFO whack

[powerpc.git] / drivers / ata / pata_sis.c

diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c
index 2b45082..657b1ee 100644 (file)
--- a/drivers/ata/pata_sis.c
+++ b/drivers/ata/pata_sis.c
@@ -149,6 +149,9 @@ static int sis_pre_reset(struct ata_port *ap, unsigned long deadline)
        if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no]))
                return -ENOENT;
 
+       /* Clear the FIFO settings. We can't enable the FIFO until
+          we know we are poking at a disk */
+       pci_write_config_byte(pdev, 0x4B, 0);
        return ata_std_prereset(ap, deadline);
 }