Fix the PIO mode 2 using mode 0 timings -- this driver should enable the
fast timing bank starting with PIO2, just like the ata_piix driver does.
Also, fix/rephrase some comments while at it.
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
---
drivers/ata/pata_oldpiix.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
Index: linux-2.6/drivers/ata/pata_oldpiix.c
===================================================================
--- linux-2.6.orig/drivers/ata/pata_oldpiix.c
+++ linux-2.6/drivers/ata/pata_oldpiix.c
@@ -25,7 +25,7 @@
#include <linux/ata.h>
#define DRV_NAME "pata_oldpiix"
-#define DRV_VERSION "0.5.2"
+#define DRV_VERSION "0.5.3"
/**
* oldpiix_pre_reset - probe begin
@@ -94,19 +94,21 @@ static void oldpiix_set_piomode (struct
{ 2, 1 },
{ 2, 3 }, };
- if (pio > 2)
- control |= 1; /* TIME1 enable */
+ if (pio > 1)
+ control |= 1; /* TIME */
if (ata_pio_need_iordy(adev))
- control |= 2; /* IE IORDY */
+ control |= 2; /* IE */
- /* Intel specifies that the PPE functionality is for disk only */
+ /* Intel specifies that the prefetch/posting is for disk only */
if (adev->class == ATA_DEV_ATA)
- control |= 4; /* PPE enable */
+ control |= 4; /* PPE */
pci_read_config_word(dev, idetm_port, &idetm_data);
- /* Enable PPE, IE and TIME as appropriate. Clear the other
- drive timing bits */
+ /*
+ * Set PPE, IE and TIME as appropriate.
+ * Clear the other drive's timing bits.
+ */
if (adev->devno == 0) {
idetm_data &= 0xCCE0;
idetm_data |= control;
-
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