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

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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 <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Paul Barker
2020-09-09 11:26:32 -07:00
committed by David S. Miller
parent 805a7e6f53
commit ade64eb5be
1 changed files with 3 additions and 0 deletions
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drivers/net/dsa/microchip/ksz9477.c
+3
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@@ -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;
}