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@xxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
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,
}
};
--
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