bmips: enable nb4-ser enet support

Signed-off-by: NÁlvaro Fernández Rojas <noltari@gmail.com>

arch/mips/dts/sfr,nb4-ser.dts

@@ -53,6 +53,30 @@
 	status = "okay";
 };
 
+&enet0 {
+	status = "okay";
+	phy = <&enet0phy>;
+	phy-mode = "internal";
+
+	enet0phy: fixed-link {
+		reg = <1>;
+		speed = <100>;
+		full-duplex;
+	};
+};
+
+&enet1 {
+	status = "okay";
+	phy = <&enet1phy>;
+	phy-mode = "mii";
+
+	enet1phy: fixed-link {
+		reg = <1>;
+		speed = <100>;
+		full-duplex;
+	};
+};
+
 &gpio0 {
 	status = "okay";
 };

configs/sfr_nb4-ser_ram_defconfig

@@ -26,11 +26,14 @@ CONFIG_CMD_LICENSE=y
 CONFIG_CMD_MEMINFO=y
 # CONFIG_CMD_LOADS is not set
 CONFIG_CMD_USB=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
 # CONFIG_CMD_MISC is not set
 CONFIG_OF_EMBED=y
 CONFIG_DEFAULT_DEVICE_TREE="sfr,nb4-ser"
-# CONFIG_NET is not set
+CONFIG_NET_RANDOM_ETHADDR=y
 # CONFIG_DM_DEVICE_REMOVE is not set
+CONFIG_BCM6348_IUDMA=y
 CONFIG_DM_GPIO=y
 CONFIG_BCM6345_GPIO=y
 CONFIG_LED=y
@@ -42,6 +45,9 @@ CONFIG_FLASH_CFI_DRIVER=y
 CONFIG_CFI_FLASH=y
 CONFIG_SYS_FLASH_PROTECTION=y
 CONFIG_SYS_FLASH_CFI=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
+CONFIG_BCM6348_ETH=y
 CONFIG_PHY=y
 CONFIG_BCM6358_USBH_PHY=y
 CONFIG_DM_RESET=y