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Commit 05e890d8 authored by Anurag Kumar Vulisha's avatar Anurag Kumar Vulisha Committed by Tejun Heo
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ata: ceva: Make RxWaterMark value as module parameter 



This patch updates the driver to make Rx Fifo water mark value
as a module parameter.

Signed-off-by: default avatarAnurag Kumar Vulisha <anuragku@xilinx.com>
Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent ff0d6377

drivers/ata/ahci_ceva.c

+5 −1
Original line number Diff line number Diff line
@@ -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 */