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authorTejun Heo <htejun@gmail.com>2008-01-24 00:05:14 +0900
committerJeff Garzik <jgarzik@redhat.com>2008-04-17 15:44:16 -0400
commit8cebf274dd1c955a6e03385a85fd6569ce445946 (patch)
treec459cd20ef93413e063826bb99ca0bcaf67ec8d2 /drivers/ata/sata_fsl.c
parent672b2d65ba83a6f3f801fd3d58851aa9c0725a54 (diff)
downloadop-kernel-dev-8cebf274dd1c955a6e03385a85fd6569ce445946.zip
op-kernel-dev-8cebf274dd1c955a6e03385a85fd6569ce445946.tar.gz
libata: kill ATA_LFLAG_SKIP_D2H_BSY
Some controllers can't reliably record the initial D2H FIS after SATA link is brought online for whatever reason. Advanced controllers which don't have traditional TF register based interface often have this problem as they don't really have the TF registers to update while the controller and link are being initialized. SKIP_D2H_BSY works around the problem by skipping the wait for device readiness before issuing SRST, so for such controllers libata issues SRST blindly and hopes for the best. Now that libata defaults to hardreset, this workaround is no longer necessary. For controllers which have support for hardreset, SRST is never issued by itself. It is only issued as follow-up SRST for device classification and PMP initialization, so there's no need to wait for it from prereset. Kill ATA_LFLAG_SKIP_D2H_BSY. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/ata/sata_fsl.c')
-rw-r--r--drivers/ata/sata_fsl.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index fbd423a..d23b690 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -35,7 +35,6 @@ enum {
SATA_FSL_HOST_FLAGS = (ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
ATA_FLAG_NCQ),
- SATA_FSL_HOST_LFLAGS = ATA_LFLAG_SKIP_D2H_BSY,
SATA_FSL_MAX_CMDS = SATA_FSL_QUEUE_DEPTH,
SATA_FSL_CMD_HDR_SIZE = 16, /* 4 DWORDS */
@@ -1241,7 +1240,6 @@ static const struct ata_port_operations sata_fsl_ops = {
static const struct ata_port_info sata_fsl_port_info[] = {
{
.flags = SATA_FSL_HOST_FLAGS,
- .link_flags = SATA_FSL_HOST_LFLAGS,
.pio_mask = 0x1f, /* pio 0-4 */
.udma_mask = 0x7f, /* udma 0-6 */
.port_ops = &sata_fsl_ops,
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