Commit ade64eb5 authored Sep 09, 2020 by Paul Barker Committed by David S. Miller Sep 09, 2020

net: dsa: microchip: Disable RGMII in-band status on KSZ9893



We can't assume that the link partner supports the in-band status
reporting which is enabled by default on the KSZ9893 when using RGMII
for the upstream port.

Signed-off-by: Paul Barker <pbarker@konsulko.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 805a7e6f

drivers/net/dsa/microchip/ksz9477.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1235,6 +1235,9 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
		if (dev->interface == PHY_INTERFACE_MODE_RGMII_ID \|\|
		dev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
		data8 \|= PORT_RGMII_ID_EG_ENABLE;
		/* On KSZ9893, disable RGMII in-band status support */
		if (dev->features & IS_9893)
		data8 &= ~PORT_MII_MAC_MODE;
		p->phydev.speed = SPEED_1000;
		break;
		}

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