Commit 624864fb authored by Pavithra Sathyanarayanan's avatar Pavithra Sathyanarayanan Committed by Paolo Abeni
Browse files

net: lan743x: add fixed phy support for LAN7431 device 



Add fixed_phy support at 1Gbps full duplex for the lan7431 device
if a phy not found over MDIO. Tested with a MAC to MAC connection
from LAN7431 to a KSZ9893 switch. This avoids the Driver open error
in LAN743x. TX delay and internal CLK125 generation is already
enabled in EEPROM.

Signed-off-by: default avatarPavithra Sathyanarayanan <Pavithra.Sathyanarayanan@microchip.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent e86c7210

drivers/net/ethernet/microchip/lan743x_main.c

+18 −2
Original line number Diff line number Diff line
@@ -1491,6 +1491,11 @@ static int lan743x_phy_open(struct lan743x_adapter *adapter) 
{

	struct net_device *netdev = adapter->netdev;

	struct lan743x_phy *phy = &adapter->phy;

	struct fixed_phy_status fphy_status = {

		.link = 1,

		.speed = SPEED_1000,

		.duplex = DUPLEX_FULL,

	};

	struct phy_device *phydev;

	int ret = -EIO;
@@ -1501,8 +1506,19 @@ static int lan743x_phy_open(struct lan743x_adapter *adapter) 
	if (!phydev) {

		/* try internal phy */

		phydev = phy_find_first(adapter->mdiobus);

		if (!phydev)

		if (!phydev)	{

			if ((adapter->csr.id_rev & ID_REV_ID_MASK_) ==

					ID_REV_ID_LAN7431_) {

				phydev = fixed_phy_register(PHY_POLL,

							    &fphy_status, NULL);

				if (IS_ERR(phydev)) {

					netdev_err(netdev, "No PHY/fixed_PHY found\n");

					return -EIO;

				}

			} else {

				goto return_error;

				}

		}



		lan743x_phy_interface_select(adapter);