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 <pbar...@konsulko.com>
Reviewed-by: Andrew Lunn <and...@lunn.ch>
---
drivers/net/dsa/microchip/ksz9477.c | 3 +++
1 file changed, 3 insertions(+)
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;
}
--
2.28.0
