PHY-interface of the Loongson GMAC device is RGMII with no internal
delays added to the data lines signal. So to comply with that let's
pre-initialize the platform-data field with the respective enum
constant.

Signed-off-by: Feiyang Chen <redacted>
Signed-off-by: Yinggang Gu <redacted>
Reviewed-by: Serge Semin <redacted>
Acked-by: Huacai Chen <redacted>
Signed-off-by: Yanteng Si <redacted>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
index 327275b28dc2..7d3f284b9176 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c

@@ -52,6 +52,8 @@ static int loongson_gmac_data(struct plat_stmmacenet_data *plat)
 	plat->tx_queues_to_use = 1;
 	plat->rx_queues_to_use = 1;
 
+	plat->phy_interface = PHY_INTERFACE_MODE_RGMII_ID;
+
 	return 0;
 }
 

-- 
2.31.4