Subject: [PATCH net-next v3 4/5] net: phy: c45: detect the BASE-T1 speed from the ability register

From: Stefan Eichenberger <[email-masked]>
Date: Mon, 17 Jul 2023 21:33:49 +0200

Read the ability to do 100BASE-T1 and 1000BASE-T1 from the extended
BASE-T1 ability register of the PHY.

Signed-off-by: Stefan Eichenberger <[email-masked]>
---
 drivers/net/phy/phy-c45.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index 58a6bbbe8a70c..8e6fd4962c486 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -899,6 +899,14 @@ int genphy_c45_pma_baset1_read_abilities(struct phy_device *phydev)
 			 phydev->supported,
 			 val & MDIO_PMA_PMD_BT1_B10L_ABLE);
 
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
+			 phydev->supported,
+			 val & MDIO_PMA_PMD_BT1_B100_ABLE);
+
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT,
+			 phydev->supported,
+			 val & MDIO_PMA_PMD_BT1_B1000_ABLE);
+
 	val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_T1_STAT);
 	if (val < 0)
 		return val;
-- 
2.39.2