diff options
| author |   Pavithra Sathyanarayanan <Pavithra.Sathyanarayanan@microchip.com> | 2023-01-17 19:46:14 +0530 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2023-01-19 13:50:11 +0100 |
| commit | 624864fbff9279aebcbc0c7c5119c205b98a2d99 (patch) | |
| tree | bdfa87953a0bdd1a26ac3febd3443815ca928bed | |
| parent | net: lan743x: add generic implementation for phy interface selection (diff) | |
| download | wireguard-linux-624864fbff9279aebcbc0c7c5119c205b98a2d99.tar.xz wireguard-linux-624864fbff9279aebcbc0c7c5119c205b98a2d99.zip | |
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: Pavithra Sathyanarayanan <Pavithra.Sathyanarayanan@microchip.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/microchip/lan743x_main.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index fe3026ed6f03..b5add1c5fa06 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -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) - goto return_error; + 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); |