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Commit 1ca6d1b1 authored by Mugunthan V N's avatar Mugunthan V N Committed by David S. Miller
Browse files

drivers: net: phy: at803x: add interface mode support 



This patch adds support for RGMII TX delay configuration on Atheros 803X,
this can be enabled in debug registers. With this patch,
PHY_INTERFACE_MODE_RGMII_TXID modes are now supported.

Signed-off-by: default avatarMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ea13c9ee

drivers/net/phy/at803x.c

+16 −0
Original line number Diff line number Diff line
@@ -27,6 +27,10 @@ 
#define AT803X_MMD_ACCESS_CONTROL		0x0D

#define AT803X_MMD_ACCESS_CONTROL_DATA		0x0E

#define AT803X_FUNC_DATA			0x4003

#define AT803X_DEBUG_ADDR			0x1D

#define AT803X_DEBUG_DATA			0x1E

#define AT803X_DEBUG_SYSTEM_MODE_CTRL		0x05

#define AT803X_DEBUG_RGMII_TX_CLK_DLY		BIT(8)



MODULE_DESCRIPTION("Atheros 803x PHY driver");

MODULE_AUTHOR("Matus Ujhelyi");
@@ -99,6 +103,7 @@ static void at803x_get_wol(struct phy_device *phydev, 
static int at803x_config_init(struct phy_device *phydev)

{

	int val;

	int ret;

	u32 features;



	features = SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_AUI |
@@ -133,6 +138,17 @@ static int at803x_config_init(struct phy_device *phydev) 
	phydev->supported = features;

	phydev->advertising = features;



	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {

		ret = phy_write(phydev, AT803X_DEBUG_ADDR,

				AT803X_DEBUG_SYSTEM_MODE_CTRL);

		if (ret)

			return ret;

		ret = phy_write(phydev, AT803X_DEBUG_DATA,

				AT803X_DEBUG_RGMII_TX_CLK_DLY);

		if (ret)

			return ret;

	}



	return 0;

}