tree afd386f0cee850f62fdb9245105e02fe49631d28
parent 4706df3d3c42af802597d82c8b1542c3d52eab23
author Brett Russ <[EMAIL PROTECTED]> Fri, 02 Sep 2005 05:53:34 -0400
committer Jeff Garzik <[EMAIL PROTECTED]> Wed, 07 Sep 2005 09:54:54 -0400
[PATCH] libata: fix pio_mask values (take 2)
ata_get_mode_mask() uses bits 3 and 4 in the pio_mask to represent PIO
modes 3 and 4. The value read from the drive, which reports support
for PIO3 and PIO4 in bits 0 and 1, is shifted left by 3 bits and OR'd
with 0x7 (which then corresponds to PIO 2-0 in libata). Thus, the
drivers below need adjustments to comply with the way pio_mask is
used. I changed the masks from the commented values to all support
PIO4-0, since the spec mandates that PIO0-2 are supported and there's
no reason not to support PIO3 IMO.
Signed-off-by: Brett Russ <[EMAIL PROTECTED]>
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>
drivers/scsi/ahci.c | 2 +-
drivers/scsi/sata_uli.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -250,7 +250,7 @@ static struct ata_port_info ahci_port_in
.host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_SATA_RESET | ATA_FLAG_MMIO |
ATA_FLAG_PIO_DMA,
- .pio_mask = 0x03, /* pio3-4 */
+ .pio_mask = 0x1f, /* pio0-4 */
.udma_mask = 0x7f, /* udma0-6 ; FIXME */
.port_ops = &ahci_ops,
},
diff --git a/drivers/scsi/sata_uli.c b/drivers/scsi/sata_uli.c
--- a/drivers/scsi/sata_uli.c
+++ b/drivers/scsi/sata_uli.c
@@ -125,8 +125,8 @@ static struct ata_port_info uli_port_inf
.sht = &uli_sht,
.host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
ATA_FLAG_NO_LEGACY,
- .pio_mask = 0x03, //support pio mode 4 (FIXME)
- .udma_mask = 0x7f, //support udma mode 6
+ .pio_mask = 0x1f, /* pio0-4 */
+ .udma_mask = 0x7f, /* udma0-6 */
.port_ops = &uli_ops,
};
-
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