1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/ide/pci/opti621.c b/drivers/ide/pci/opti621.c
index 9fa06393469a..38f8a4cb91d2 100644
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -355,6 +355,7 @@ static ide_pci_device_t opti621_chipsets[] __devinitdata = {
                 .enablebits     = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
                 .bootable       = ON_BOARD,
                 .pio_mask       = ATA_PIO3,
+                .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
         },{     /* 1 */
                 .name           = "OPTI621X",
                 .init_hwif      = init_hwif_opti621,
@@ -362,6 +363,7 @@ static ide_pci_device_t opti621_chipsets[] __devinitdata = {
                 .enablebits     = {{0x45,0x80,0x00}, {0x40,0x08,0x00}},
                 .bootable       = ON_BOARD,
                 .pio_mask       = ATA_PIO3,
+                .host_flags     = IDE_HFLAG_TRUST_BIOS_FOR_DMA,
         }
 };