[PATCH 01/20] ata_piix: SITRE handling fix

From: Bartlomiej Zolnierkiewicz
Date: Tue Feb 08 2011 - 06:39:24 EST


Set SITRE bit also in master-only configurations.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@xxxxxxxxx>
---
drivers/ata/ata_piix.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 6cb14ca..0f4856d 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -751,8 +751,6 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev)
if (is_slave) {
/* clear TIME1|IE1|PPE1|DTE1 */
master_data &= 0xff0f;
- /* Enable SITRE (separate slave timing register) */
- master_data |= 0x4000;
/* enable PPE1, IE1 and TIME1 as needed */
master_data |= (control << 4);
pci_read_config_byte(dev, slave_port, &slave_data);
@@ -770,6 +768,9 @@ static void piix_set_piomode(struct ata_port *ap, struct ata_device *adev)
(timings[pio][0] << 12) |
(timings[pio][1] << 8);
}
+
+ /* Enable SITRE (separate slave timing register) */
+ master_data |= 0x4000;
pci_write_config_word(dev, master_port, master_data);
if (is_slave)
pci_write_config_byte(dev, slave_port, slave_data);
--
1.7.1

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