1 files changed, 12 insertions, 0 deletions

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 2ddb567f165b..7f9eab34a386 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -185,6 +185,11 @@ enum {
         COMMANDSTAT = 0x20,
 };
 
+/* TRANSCFG (transport-layer) configuration control */
+enum {
+        TRANSCFG_RX_WATER_MARK = (1 << 4),
+};
+
 /* PHY (link-layer) configuration control */
 enum {
         PHY_BIST_ENABLE = 0x01,
@@ -1305,6 +1310,7 @@ static int sata_fsl_probe(struct platform_device *ofdev,
         struct sata_fsl_host_priv *host_priv = NULL;
         int irq;
         struct ata_host *host;
+        u32 temp;
 
         struct ata_port_info pi = sata_fsl_port_info[0];
         const struct ata_port_info *ppi[] = { &pi, NULL };
@@ -1319,6 +1325,12 @@ static int sata_fsl_probe(struct platform_device *ofdev,
         ssr_base = hcr_base + 0x100;
         csr_base = hcr_base + 0x140;
 
+        if (!of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc8315-sata")) {
+                temp = ioread32(csr_base + TRANSCFG);
+                temp = temp & 0xffffffe0;
+                iowrite32(temp | TRANSCFG_RX_WATER_MARK, csr_base + TRANSCFG);
+        }
+
         DPRINTK("@reset i/o = 0x%x\n", ioread32(csr_base + TRANSCFG));
         DPRINTK("sizeof(cmd_desc) = %d\n", sizeof(struct command_desc));
         DPRINTK("sizeof(#define cmd_desc) = %d\n", SATA_FSL_CMD_DESC_SIZE);