From 2ec4d10b65d1f7d45098606e9a6857d587c3027c Mon Sep 17 00:00:00 2001 From: Andrea Merello Date: Thu, 26 May 2016 18:24:28 +0200 Subject: [PATCH] phy: atheros: add support for RGMII_ID, RGMII_TXID and RGMII_RXID This adds support for internal delay on RX and TX on RGMII interface for the AR8035 phy. This is basically the same Linux driver do. Tested on a Zynq Zturn board (for which u-boot support in is my tree; first patch waiting ML approval) Signed-off-by: Andrea Merello Reviewed-by: Marek Vasut Acked-by: Marek Vasut Acked-by: Joe Hershberger --- drivers/net/phy/atheros.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c index e57c4120a3..694a338053 100644 --- a/drivers/net/phy/atheros.c +++ b/drivers/net/phy/atheros.c @@ -31,6 +31,22 @@ static int ar8035_config(struct phy_device *phydev) regval = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e); phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, (regval|0x0100)); + if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) { + /* select debug reg 5 */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1D, 0x5); + /* enable tx delay */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1E, 0x0100); + } + + if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || + (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)) { + /* select debug reg 0 */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1D, 0x0); + /* enable rx delay */ + phy_write(phydev, MDIO_DEVAD_NONE, 0x1E, 0x8000); + } + phydev->supported = phydev->drv->features; genphy_config_aneg(phydev); -- 2.25.1