Enable RP1 ethernet DT node for Raspberry Pi 5.

Signed-off-by: Stanimir Varbanov <svarbanov@suse.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 .../boot/dts/broadcom/bcm2712-rpi-5-b.dts      | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
index a70a9b158df3..c70d1cb7f3b6 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
@@ -23,3 +23,21 @@ &pcie1 {
 &pcie2 {
 	status = "okay";
 };
+
+&rp1_eth {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&phy1>;
+
+	mdio {
+		reg = <0x1>;
+		reset-gpios = <&rp1_gpio 32 GPIO_ACTIVE_LOW>;
+		reset-delay-us = <5000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		phy1: ethernet-phy@1 {
+			reg = <0x1>;
+		};
+	};
+};
-- 
2.47.0