diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ata/libata-core.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 0ec717b748d..9d10e2feb8b 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -2882,6 +2882,13 @@ static int ata_dev_set_mode(struct ata_device *dev) dev->pio_mode <= XFER_PIO_2) err_mask &= ~AC_ERR_DEV; + /* Early MWDMA devices do DMA but don't allow DMA mode setting. + Don't fail an MWDMA0 set IFF the device indicates it is in MWDMA0 */ + if (dev->xfer_shift == ATA_SHIFT_MWDMA && + dev->dma_mode == XFER_MW_DMA_0 && + (dev->id[63] >> 8) & 1) + err_mask &= ~AC_ERR_DEV; + if (err_mask) { ata_dev_printk(dev, KERN_ERR, "failed to set xfermode " "(err_mask=0x%x)\n", err_mask); @@ -3943,9 +3950,6 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { { "_NEC DV5800A", NULL, ATA_HORKAGE_NODMA }, { "SAMSUNG CD-ROM SN-124", "N001", ATA_HORKAGE_NODMA }, { "Seagate STT20000A", NULL, ATA_HORKAGE_NODMA }, - { "IOMEGA ZIP 250 ATAPI", NULL, ATA_HORKAGE_NODMA }, /* temporary fix */ - { "IOMEGA ZIP 250 ATAPI Floppy", - NULL, ATA_HORKAGE_NODMA }, /* Odd clown on sil3726/4726 PMPs */ { "Config Disk", NULL, ATA_HORKAGE_NODMA | ATA_HORKAGE_SKIP_PM }, |