The bit 11 of command description is reserved bit in Freescale
SATA controller, we should be set '1'.
Signed-off-by: Dave Liu <daveliu@xxxxxxxxxxxxx>
---
drivers/ata/sata_fsl.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index c2e90e1..f158bd7 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -205,6 +205,7 @@ struct cmdhdr_tbl_entry {
* Description information bitdefs
*/
enum {
+ CMD_DESC_RES = (1 << 11),
VENDOR_SPECIFIC_BIST = (1 << 10),
CMD_DESC_SNOOP_ENABLE = (1 << 9),
FPDMA_QUEUED_CMD = (1 << 8),
@@ -387,7 +388,7 @@ static void sata_fsl_qc_prep(struct ata_queued_cmd *qc)
void __iomem *hcr_base = host_priv->hcr_base;
unsigned int tag = sata_fsl_tag(qc->tag, hcr_base);
struct command_desc *cd;
- u32 desc_info = CMD_DESC_SNOOP_ENABLE;
+ u32 desc_info = CMD_DESC_RES | CMD_DESC_SNOOP_ENABLE;
u32 num_prde = 0;
u32 ttl_dwords = 0;
dma_addr_t cd_paddr;
@@ -840,7 +841,7 @@ issue_srst:
/* device reset/SRST is a control register update FIS, uses tag0 */
sata_fsl_setup_cmd_hdr_entry(pp, 0,
- SRST_CMD | CMD_DESC_SNOOP_ENABLE, 0, 0, 5);
+ SRST_CMD | CMD_DESC_RES | CMD_DESC_SNOOP_ENABLE, 0, 0, 5);
tf.ctl |= ATA_SRST; /* setup SRST bit in taskfile control reg */
ata_tf_to_fis(&tf, pmp, 0, cfis);
@@ -886,7 +887,8 @@ issue_srst:
* using ATA signature D2H register FIS to the host controller.
*/
- sata_fsl_setup_cmd_hdr_entry(pp, 0, CMD_DESC_SNOOP_ENABLE, 0, 0, 5);
+ sata_fsl_setup_cmd_hdr_entry(pp, 0, CMD_DESC_RES | CMD_DESC_SNOOP_ENABLE,
+ 0, 0, 5);
tf.ctl &= ~ATA_SRST; /* 2nd H2D Ctl. register FIS */
ata_tf_to_fis(&tf, pmp, 0, cfis);
--
1.5.4
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