diff options
| -rw-r--r-- | drivers/ata/sata_via.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c index 101d8c219caf..0ecd0f6aa2c0 100644 --- a/drivers/ata/sata_via.c +++ b/drivers/ata/sata_via.c @@ -575,6 +575,19 @@ static void svia_configure(struct pci_dev *pdev) tmp8 |= NATIVE_MODE_ALL; pci_write_config_byte(pdev, SATA_NATIVE_MODE, tmp8); } + + /* + * vt6421 has problems talking to some drives. The following + * is the magic fix from Joseph Chan <JosephChan@via.com.tw>. + * Please add proper documentation if possible. + * + * https://bugzilla.kernel.org/show_bug.cgi?id=15173 + */ + if (pdev->device == 0x3249) { + pci_read_config_byte(pdev, 0x52, &tmp8); + tmp8 |= 1 << 2; + pci_write_config_byte(pdev, 0x52, tmp8); + } } static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |