From: Tao Ren <rentao.bupt@xxxxxxxxx>
Support fixed link in ftgmac100 driver. Fixed link is used on several
Meta OpenBMC platforms, such as Elbert (AST2620) and Wedge400 (AST2520).
Signed-off-by: Tao Ren <rentao.bupt@xxxxxxxxx>
---
drivers/net/ethernet/faraday/ftgmac100.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 9277d5fb5052..da04beee5865 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1701,10 +1701,14 @@ static int ftgmac100_setup_mdio(struct net_device *netdev)
static void ftgmac100_phy_disconnect(struct net_device *netdev)
{
+ struct ftgmac100 *priv = netdev_priv(netdev);
+
if (!netdev->phydev)
return;
phy_disconnect(netdev->phydev);
+ if (of_phy_is_fixed_link(priv->dev->of_node))
+ of_phy_deregister_fixed_link(priv->dev->of_node);
}
static void ftgmac100_destroy_mdio(struct net_device *netdev)
@@ -1867,6 +1871,26 @@ static int ftgmac100_probe(struct platform_device *pdev)
err = -EINVAL;
goto err_phy_connect;
}
+ } else if (np && of_phy_is_fixed_link(np)) {
+ struct phy_device *phy;
+
+ err = of_phy_register_fixed_link(np);
+ if (err) {
+ dev_err(&pdev->dev, "Failed to register fixed PHY\n");
+ goto err_phy_connect;
+ }
+
+ phy = of_phy_get_and_connect(priv->netdev, np,
+ &ftgmac100_adjust_link);
+ if (!phy) {
+ dev_err(&pdev->dev, "Failed to connect to fixed PHY\n");
+ of_phy_deregister_fixed_link(np);
+ err = -EINVAL;
+ goto err_phy_connect;
+ }
+
+ /* Display what we found */
+ phy_attached_info(phy);
} else if (np && of_get_property(np, "phy-handle", NULL)) {
struct phy_device *phy;
--
2.30.2
