1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 562747fbee39..8e655f2db5cb 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -217,6 +217,7 @@ static ide_pci_device_t slc90e66_chipset __devinitdata = {
         .autodma        = AUTODMA,
         .enablebits     = {{0x41,0x80,0x80}, {0x43,0x80,0x80}},
         .bootable       = ON_BOARD,
+        .pio_mask       = ATA_PIO4,
 };
 
 static int __devinit slc90e66_init_one(struct pci_dev *dev, const struct pci_device_id *id)