These controllers don't support DMA.

Based on a bugreport from Juergen Kosel & inspired by pata_opti.c code.

Tested-by: Juergen Kosel <juergen.kosel@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
 drivers/ide/pci/opti621.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

Index: b/drivers/ide/pci/opti621.c
===================================================================
--- a/drivers/ide/pci/opti621.c
+++ b/drivers/ide/pci/opti621.c
@@ -324,18 +324,14 @@ static const struct ide_port_info opti62
 		.name		= "OPTI621",
 		.enablebits	= { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
 		.port_ops	= &opti621_port_ops,
-		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA,
+		.host_flags	= IDE_HFLAG_NO_DMA,
 		.pio_mask	= ATA_PIO3,
-		.swdma_mask	= ATA_SWDMA2,
-		.mwdma_mask	= ATA_MWDMA2,
 	}, {	/* 1 */
 		.name		= "OPTI621X",
 		.enablebits	= { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
 		.port_ops	= &opti621_port_ops,
-		.host_flags	= IDE_HFLAG_TRUST_BIOS_FOR_DMA,
+		.host_flags	= IDE_HFLAG_NO_DMA,
 		.pio_mask	= ATA_PIO3,
-		.swdma_mask	= ATA_SWDMA2,
-		.mwdma_mask	= ATA_MWDMA2,
 	}
 };
 
--
unsubscribe notice
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/