From: Anurag Kumar Vulisha <anurag.kumar.vulisha@xxxxxxxxxx>
This patch updates the driver to make Rx Fifo water mark value
as a module parameter.
Signed-off-by: Anurag Kumar Vulisha <anuragku@xxxxxxxxxx>
Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx>
---
drivers/ata/ahci_ceva.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/ata/ahci_ceva.c b/drivers/ata/ahci_ceva.c
index b63fab2507fa..eff40ec86065 100644
--- a/drivers/ata/ahci_ceva.c
+++ b/drivers/ata/ahci_ceva.c
@@ -71,6 +71,10 @@
#define DRV_NAME "ahci-ceva"
#define CEVA_FLAG_BROKEN_GEN2 1
+static unsigned int rx_watermark = PTC_RX_WM_VAL;
+module_param(rx_watermark, uint, 0644);
+MODULE_PARM_DESC(rx_watermark, "RxWaterMark value (0 - 0x80)");
+
struct ceva_ahci_priv {
struct platform_device *ahci_pdev;
/* Port Phy2Cfg Register */
@@ -152,7 +156,7 @@ static void ahci_ceva_setup(struct ahci_host_priv *hpriv)
writel(cevapriv->pp5c[i], mmio + AHCI_VEND_PP5C);
/* Rx Watermark setting */
- tmp = PTC_RX_WM_VAL | PTC_RSVD;
+ tmp = rx_watermark | PTC_RSVD;
writel(tmp, mmio + AHCI_VEND_PTC);
/* Default to Gen 3 Speed and Gen 1 if Gen2 is broken */
--
1.9.1
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