piix: ICH7 MWDMA1 errata

Based on libata commit c611bed7.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index b59d04c..1892e81 100644 (file)
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -331,7 +331,7 @@ static const struct ide_port_ops ich_port_ops = {
                .udma_mask      = udma,                 \
        }
 
-#define DECLARE_ICH_DEV(udma) \
+#define DECLARE_ICH_DEV(mwdma, udma) \
        { \
                .name           = DRV_NAME, \
                .init_chipset   = init_chipset_ich, \
@@ -340,7 +340,7 @@ static const struct ide_port_ops ich_port_ops = {
                .port_ops       = &ich_port_ops, \
                .pio_mask       = ATA_PIO4, \
                .swdma_mask     = ATA_SWDMA2_ONLY, \
-               .mwdma_mask     = ATA_MWDMA12_ONLY, \
+               .mwdma_mask     = mwdma, \
                .udma_mask      = udma, \
        }
 
@@ -362,13 +362,15 @@ static const struct ide_port_info piix_pci_info[] __devinitdata = {
        /* 2: PIIX4 */
        DECLARE_PIIX_DEV(ATA_UDMA2),
        /* 3: ICH0 */
-       DECLARE_ICH_DEV(ATA_UDMA2),
+       DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA2),
        /* 4: ICH */
-       DECLARE_ICH_DEV(ATA_UDMA4),
+       DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA4),
        /* 5: PIIX4 */
        DECLARE_PIIX_DEV(ATA_UDMA4),
-       /* 6: ICH[2-7]/ICH[2-3]M/C-ICH/ICH5-SATA/ESB2/ICH8M */
-       DECLARE_ICH_DEV(ATA_UDMA5),
+       /* 6: ICH[2-6]/ICH[2-3]M/C-ICH/ICH5-SATA/ESB2/ICH8M */
+       DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA5),
+       /* 7: ICH7/7-R, no MWDMA1 */
+       DECLARE_ICH_DEV(ATA_MWDMA2_ONLY, ATA_UDMA5),
 };
 
 /**
@@ -438,9 +440,9 @@ static const struct pci_device_id piix_pci_tbl[] = {
 #endif
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB_2),      6 },
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH6_19),    6 },
-       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21),    6 },
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21),    7 },
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_1),  6 },
-       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18),    6 },
+       { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18),    7 },
        { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH8_6),     6 },
        { 0, },
 };