Commit 15ce0943 authored May 25, 2007 by Alan Cox Committed by Jeff Garzik Jul 10, 2007

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>

parent 45a66c1c

drivers/ata/pata_sis.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);
		}