Thread (35 messages) 35 messages, 4 authors, 2024-01-05

Re: [PATCH] net: phy: marvell-88q2xxx: add driver for the Marvell 88Q2220 PHY

From: Andrew Lunn <andrew@lunn.ch>
Date: 2023-12-17 09:23:08
Also in: lkml

quoted
quoted
+	/* Set IEEE power down */
+	ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, 0x840);
0x800 is MDIO_CTRL1_LPOWER. What is the other? It seems like a speed
selection bit?
The other is MDIO_PMA_CTRL1_SPEED1000. Will fix this in V2.
It seems odd to set a speed, and power it down. But i guess you have
blindly copied the reference code, so have no idea why?

	Andrew
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