diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 8dd2122fd9b1..4099cbc5d0de 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -728,6 +728,7 @@ static int rk3528_init(struct rk_priv_data *bsp_priv)
 	case 0:
 		bsp_priv->clock_grf_reg = RK3528_VO_GRF_GMAC_CON;
 		bsp_priv->clock.rmii_clk_sel_mask = BIT_U16(3);
+		bsp_priv->supports_rgmii = false;
 		return 0;
 
 	case 1: