From: Anurag Kumar Vulisha <[email protected]> This patch updates the driver to make Rx Fifo water mark value as a module parameter.
Signed-off-by: Anurag Kumar Vulisha <[email protected]> Signed-off-by: Michal Simek <[email protected]> --- Changes in v2: None 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
