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

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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: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mugunthan V N 2013-06-03 20:10:06 +00:00 committed by David S. Miller
parent ea13c9ee85
commit 1ca6d1b1ae
1 changed files with 16 additions and 0 deletions
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16
drivers/net/phy/at803x.c
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@ -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;
}