netdev - [PATCH net-next v4 4/5] net: phy: c45: detect the BASE-T1 speed from the ability register

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Message-Id: <20230719064258.9746-5-eichest@gmail.com>
Date: Wed, 19 Jul 2023 08:42:57 +0200
From: Stefan Eichenberger <eichest@...il.com>
To: netdev@...r.kernel.org,
	andrew@...n.ch,
	hkallweit1@...il.com,
	linux@...linux.org.uk,
	francesco.dolcini@...adex.com,
	kabel@...nel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	eichest@...il.com
Subject: [PATCH net-next v4 4/5] net: phy: c45: detect the BASE-T1 speed from the ability register

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 <eichest@...il.com>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
---
 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