diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 6c7e8655a7eb..50d37876fabf 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -11,6 +11,7 @@
 #include <linux/mdio-mux.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
+#include <linux/nvmem-consumer.h>
 #include <linux/of.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
@@ -280,6 +281,8 @@ static const struct emac_variant emac_variant_h6 = {
 #define SYSCON_ETCS_EXT_GMII	0x1
 #define SYSCON_ETCS_INT_GMII	0x2
 
+#define AC300_KEY		BIT(8) /* 1: AC300 PHY, 0: AC200 PHY */
+
 /* sun8i_dwmac_dma_reset() - reset the EMAC
  * Called from stmmac via stmmac_dma_ops->reset
  */
@@ -1149,6 +1152,35 @@ static struct regmap *sun8i_dwmac_get_syscon_from_dev(struct device_node *node)
 	return regmap;
 }
 
+/* H616 SoCs can contain either an AC200 PHY (needs i2c init) or an AC300
+ * PHY (no i2c). The silicon variant is flagged by the AC300_KEY efuse.
+ */
+static int sun8i_dwmac_get_ac300_phy(struct device *dev,
+				     struct plat_stmmacenet_data *plat_dat)
+{
+	u16 val;
+
+	/* If the nvmem cell is absent, use normal phy selection. */
+	if (nvmem_cell_read_u16(dev, "ac300", &val))
+		return 0;
+
+	const char *phy_name = (val & AC300_KEY) ? "ac300" : "ac200";
+	int index = of_property_match_string(dev->of_node, "phy-names",
+					     phy_name);
+	if (index < 0) {
+		dev_err(dev, "PHY name not found in device tree\n");
+		return -EINVAL;
+	}
+
+	plat_dat->phy_node = of_parse_phandle(dev->of_node, "phys", index);
+	if (!plat_dat->phy_node) {
+		dev_err(dev, "Failed to get PHY node from phys property\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int sun8i_dwmac_probe(struct platform_device *pdev)
 {
 	struct plat_stmmacenet_data *plat_dat;
@@ -1222,6 +1254,10 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	if (IS_ERR(plat_dat))
 		return PTR_ERR(plat_dat);
 
+	ret = sun8i_dwmac_get_ac300_phy(dev, plat_dat);
+	if (ret)
+		return ret;
+
 	/* platform data specifying hardware features and callbacks.
 	 * hardware features were copied from Allwinner drivers.
 	 */