[PATCH 4/8] arm64: dts: rockchip: Add mdio and ethernet-phy nodes to rk3308-rock-pi-s

[Jonas Karlman]

Be explicit about the Ethernet port and define mdio and ethernet-phy
nodes in the device tree for ROCK Pi S.

Fixes: bc3753aed81f ("arm64: dts: rockchip: rock-pi-s add more peripherals")
Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Link: https://lore.kernel.org/r/20240521211029.1236094-8-jonas@kwiboo.se
Signed-off-by: Heiko Stuebner <heiko at sntech.de>

[ upstream commit: 4b64ed510ed946a4e4ca6d51d6512bf5361f6a04 ]

(cherry picked from commit 703b8eae20eec5dbb0e52f0e1fb71e712c007dae)
---
 .../src/arm64/rockchip/rk3308-rock-pi-s.dts   | 26 ++++++++++++++++---
 1 file changed, 23 insertions(+), 3 deletions(-)

diff --git a/dts/upstream/src/arm64/rockchip/rk3308-rock-pi-s.dts b/dts/upstream/src/arm64/rockchip/rk3308-rock-pi-s.dts
index d4cf6026241c..f6fb90e13ad0 100644
--- a/dts/upstream/src/arm64/rockchip/rk3308-rock-pi-s.dts
+++ b/dts/upstream/src/arm64/rockchip/rk3308-rock-pi-s.dts
@@ -144,11 +144,25 @@
 
 &gmac {
 	clock_in_out = "output";
+	phy-handle = <&rtl8201f>;
 	phy-supply = <&vcc_io>;
-	snps,reset-gpio = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
-	snps,reset-active-low;
-	snps,reset-delays-us = <0 50000 50000>;
 	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		rtl8201f: ethernet-phy at 1 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <1>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&mac_rst>;
+			reset-assert-us = <20000>;
+			reset-deassert-us = <50000>;
+			reset-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
+		};
+	};
 };
 
 &gpio0 {
@@ -221,6 +235,12 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&rtc_32k>;
 
+	gmac {
+		mac_rst: mac-rst {
+			rockchip,pins = <0 RK_PA7 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	leds {
 		green_led: green-led {
 			rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;
-- 
2.45.2