From 58b509748928f725ae13ca8f67979d7f7eb29eb8 Mon Sep 17 00:00:00 2001
From: Martin Kennedy <hurricos@gmail.com>
Date: Sat, 27 Aug 2022 20:44:20 -0400
Subject: [PATCH] realtek: add MCU/PSEs to GS1900-24HPv1 uart1 node

Obviously a draft.

The use of the mcu node under uart1 here is inspired by this dts in
the upstream Linux tree:

arch/arm64/boot/dts/marvell/armada-8040-puzzle-m801.dts

The use of the ethernet-pse nodes, and the compatible they follow, is
based on work from the in-progress patch here:

https://patchwork.kernel.org/project/netdevbpf/patch/20220825130211.3730461-2-o.rempel@pengutronix.de/

Signed-off-by: Martin Kennedy <hurricos@gmail.com>

diff --git a/target/linux/realtek/dts-5.10/rtl8382_zyxel_gs1900-24hp-v1.dts b/target/linux/realtek/dts-5.10/rtl8382_zyxel_gs1900-24hp-v1.dts
index 7bb3410a31..db2c7c0c71 100644
--- a/target/linux/realtek/dts-5.10/rtl8382_zyxel_gs1900-24hp-v1.dts
+++ b/target/linux/realtek/dts-5.10/rtl8382_zyxel_gs1900-24hp-v1.dts
@@ -51,6 +51,181 @@
 
 &uart1 {
 	status = "okay";
+
+	mcu {
+		compatible = "stm,poe-mcu";
+		current-speed = <115200>;
+
+		pse {
+			pse_lan1: ethernet-pse-1 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy0>;
+				#pse-cells = <0>;
+				label = "lan1";
+			};
+
+			pse_lan2: ethernet-pse-2 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy1>;
+				#pse-cells = <0>;
+				label = "lan2";
+			};
+
+			pse_lan3: ethernet-pse-3 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy2>;
+				#pse-cells = <0>;
+				label = "lan3";
+			};
+
+			pse_lan4: ethernet-pse-4 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy3>;
+				#pse-cells = <0>;
+				label = "lan4";
+			};
+
+			pse_lan5: ethernet-pse-5 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy4>;
+				#pse-cells = <0>;
+				label = "lan5";
+			};
+
+			pse_lan6: ethernet-pse-6 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy5>;
+				#pse-cells = <0>;
+				label = "lan6";
+			};
+
+			pse_lan7: ethernet-pse-7 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy6>;
+				#pse-cells = <0>;
+				label = "lan7";
+			};
+
+			pse_lan8: ethernet-pse-8 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy7>;
+				#pse-cells = <0>;
+				label = "lan8";
+			};
+
+			pse_lan9: ethernet-pse-9 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy8>;
+				#pse-cells = <0>;
+				label = "lan9";
+			};
+
+			pse_lan10: ethernet-pse-10 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy9>;
+				#pse-cells = <0>;
+				label = "lan10";
+			};
+
+			pse_lan11: ethernet-pse-11 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy10>;
+				#pse-cells = <0>;
+				label = "lan11";
+			};
+
+			pse_lan12: ethernet-pse-12 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy11>;
+				#pse-cells = <0>;
+				label = "lan12";
+			};
+
+			pse_lan13: ethernet-pse-13 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy12>;
+				#pse-cells = <0>;
+				label = "lan13";
+			};
+
+			pse_lan14: ethernet-pse-14 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy13>;
+				#pse-cells = <0>;
+				label = "lan14";
+			};
+
+			pse_lan15: ethernet-pse-15 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy14>;
+				#pse-cells = <0>;
+				label = "lan15";
+			};
+
+			pse_lan16: ethernet-pse-16 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy15>;
+				#pse-cells = <0>;
+				label = "lan16";
+			};
+
+			pse_lan17: ethernet-pse-17 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy16>;
+				#pse-cells = <0>;
+				label = "lan17";
+			};
+
+			pse_lan18: ethernet-pse-18 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy17>;
+				#pse-cells = <0>;
+				label = "lan18";
+			};
+
+			pse_lan19: ethernet-pse-19 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy18>;
+				#pse-cells = <0>;
+				label = "lan19";
+			};
+
+			pse_lan20: ethernet-pse-20 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy19>;
+				#pse-cells = <0>;
+				label = "lan20";
+			};
+
+			pse_lan21: ethernet-pse-21 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy20>;
+				#pse-cells = <0>;
+				label = "lan21";
+			};
+
+			pse_lan22: ethernet-pse-22 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy21>;
+				#pse-cells = <0>;
+				label = "lan22";
+			};
+
+			pse_lan23: ethernet-pse-23 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy22>;
+				#pse-cells = <0>;
+				label = "lan23";
+			};
+
+			pse_lan24: ethernet-pse-24 {
+				compatible = "ieee802.3-pse-regulator";
+				ieee802.3-pse-supply = <&phy23>;
+				#pse-cells = <0>;
+				label = "lan24";
+			};
+		};
+	};
 };
 
 &mdio {
-- 
2.36.1