From 13114f38e2ccea9386726d8b9831dfc310589548 Mon Sep 17 00:00:00 2001 From: Vladimir Oltean Date: Thu, 7 May 2020 00:11:51 +0200 Subject: [PATCH] phy: atheros: Explicitly disable RGMII delays To eliminate any doubts about the out-of-reset value of the PHY, that the driver previously relied on. If bisecting shows that this commit breaks your board you probably have a wrong PHY interface mode. You probably want the PHY_INTERFACE_MODE_RGMII_RXID or PHY_INTERFACE_MODE_RGMII_ID mode. Signed-off-by: Vladimir Oltean Acked-by: Joe Hershberger --- drivers/net/phy/atheros.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/phy/atheros.c b/drivers/net/phy/atheros.c index 1da18eb5d4..3e59c3f391 100644 --- a/drivers/net/phy/atheros.c +++ b/drivers/net/phy/atheros.c @@ -70,10 +70,14 @@ static int ar8031_config(struct phy_device *phydev) if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID || phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ar803x_enable_tx_delay(phydev, true); + else + ar803x_enable_tx_delay(phydev, false); if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID || phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ar803x_enable_rx_delay(phydev, true); + else + ar803x_enable_rx_delay(phydev, false); phydev->supported = phydev->drv->features; @@ -96,10 +100,14 @@ static int ar8035_config(struct phy_device *phydev) if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) ar803x_enable_tx_delay(phydev, true); + else + ar803x_enable_tx_delay(phydev, false); if ((phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) || (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)) ar803x_enable_rx_delay(phydev, true); + else + ar803x_enable_rx_delay(phydev, false); phydev->supported = phydev->drv->features; -- 2.39.5