From: Magnus Damm <damm+renesas@xxxxxxxxxxxxx> According to the data sheet the Ethernet-AVB hardware in R-Car Gen3 and R-Car Gen2 SoCs do not support half duplex operation. So update the driver to mark 100Mbit HDX as unsupported. Not-Yet-Signed-off-by: Magnus Damm <damm+renesas@xxxxxxxxxxxxx> --- Written on top of renesas-drivers-2018-07-17-v4.18-rc5 drivers/net/ethernet/renesas/ravb_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- 0001/drivers/net/ethernet/renesas/ravb_main.c +++ work/drivers/net/ethernet/renesas/ravb_main.c 2018-07-19 19:18:38.210607110 +0900 @@ -1066,8 +1066,8 @@ static int ravb_phy_init(struct net_devi netdev_info(ndev, "limited PHY to 100Mbit/s\n"); } - /* 10BASE is not supported */ - phydev->supported &= ~PHY_10BT_FEATURES; + /* Nether 10BASE nor half duplex is supported */ + phydev->supported &= ~(PHY_10BT_FEATURES | SUPPORTED_100baseT_Half); phy_attached_info(phydev);
