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| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2007-05-25 20:50:24 +0100 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-07-10 21:14:19 -0400 |
| commit | 15ce09432a4399e61b57f2ceb564522d6534c15f (patch) | |
| tree | 4ba7528880c6fd5b72904db23bdd3e1b2da07b96 | |
| parent | 45a66c1c3ff88e8050dd25e81bafdf79a12a8042 (diff) | |
pata_sis: FIFO whack
If you are using a SiS controller and the BIOS didn't set it up then the
FIFO may be left active when we try and set up the CD. Not convinced this
matters but I'd prefer to be safe
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
| -rw-r--r-- | drivers/ata/pata_sis.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/pata_sis.c b/drivers/ata/pata_sis.c index 2b4508206a6..657b1ee2f5c 100644 --- a/drivers/ata/pata_sis.c +++ b/drivers/ata/pata_sis.c @@ -149,6 +149,9 @@ static int sis_pre_reset(struct ata_port *ap, unsigned long deadline) if (!pci_test_config_bits(pdev, &sis_enable_bits[ap->port_no])) return -ENOENT; + /* Clear the FIFO settings. We can't enable the FIFO until + we know we are poking at a disk */ + pci_write_config_byte(pdev, 0x4B, 0); return ata_std_prereset(ap, deadline); } |