diff mbox series

[v2,3/4] net: dsa: microchip: Disable RGMII in-band status on KSZ9893

Message ID 20200907101208.1223-4-pbarker@konsulko.com
State New
Headers show
Series ksz9477 dsa switch driver improvements | expand

Commit Message

Paul Barker Sept. 7, 2020, 10:12 a.m. UTC 
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>
---
 drivers/net/dsa/microchip/ksz9477.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 9513af057793..f379ea8242e0 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -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;
 		}