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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-03 15:48:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-06-03 15:48:15 -0700 |
| commit | ad8456361fa19068cf49b50a4f98e41b73c08e76 (patch) | |
| tree | 281c96054fa2a8ca42ac47a4edfa6961cc463f29 /drivers/ata/sata_via.c | |
| parent | 39d112100e561686ab1e2b19c57984163ad6c1fa (diff) | |
| parent | d8d9129ea28e2177749627c82962feb26e8d11e9 (diff) | |
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: implement on-demand HPA unlocking
libata: use the enlarged capacity after late HPA unlock
SCSI: implement sd_unlock_native_capacity()
libata-sff: trivial corrections to Kconfig help text
sata_nv: don't diddle with nIEN on mcp55
sata_via: magic vt6421 fix for transmission problems w/ WD drives
Diffstat (limited to 'drivers/ata/sata_via.c')
| -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 101d8c219ca..0ecd0f6aa2c 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) |