From: Jonas Jelonek <jelonek.jonas@gmail.com>
Date: Wed, 27 May 2026 14:26:47 +0000 (+0000)
Subject: realtek: add PoE support for GS1920-24HP
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F24239%2Fhead;p=thirdparty%2Fopenwrt.git

realtek: add PoE support for GS1920-24HP

Add PoE support for GS1920-24HP by providing the device tree
definition and selecting the Realtek PSE MCU driver package for build.
Support includes both versions of the device since they basically share
the same PSE frontend. The common DTSI includes the shared definitions,
the device DTS files then set the correct compatibles.

Link: https://github.com/openwrt/openwrt/pull/24239
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
---

diff --git a/target/linux/realtek/dts/rtl8391_zyxel_gs1920-24hp-v2.dts b/target/linux/realtek/dts/rtl8391_zyxel_gs1920-24hp-v2.dts
index 36b05d11a8b..3aab3d8072c 100644
--- a/target/linux/realtek/dts/rtl8391_zyxel_gs1920-24hp-v2.dts
+++ b/target/linux/realtek/dts/rtl8391_zyxel_gs1920-24hp-v2.dts
@@ -124,6 +124,10 @@
 	PHY_C22_SFP(27, 27, 3)
 };
 
+&pse {
+	compatible = "zyxel,gs1920-24hp-v2-pse", "realtek,pse-mcu-gen1-smbus";
+};
+
 &switch0 {
 	ethernet-ports {
 		SWITCH_PORT_SDS(24, 25, 6, 0, qsgmii)
diff --git a/target/linux/realtek/dts/rtl8392_zyxel_gs1920-24hp-v1.dts b/target/linux/realtek/dts/rtl8392_zyxel_gs1920-24hp-v1.dts
index 47bcbe9a19c..289dc73306e 100644
--- a/target/linux/realtek/dts/rtl8392_zyxel_gs1920-24hp-v1.dts
+++ b/target/linux/realtek/dts/rtl8392_zyxel_gs1920-24hp-v1.dts
@@ -78,6 +78,10 @@
 	PHY_C22_SFP(51, 27, 3)
 };
 
+&pse {
+	compatible = "zyxel,gs1920-24hp-v1-pse", "realtek,pse-mcu-gen1-smbus";
+};
+
 &switch0 {
 	ethernet-ports {
 		SWITCH_PORT_SDS(48, 25, 12, 0, qsgmii)
diff --git a/target/linux/realtek/dts/rtl839x_zyxel_gs1920-24hp-common.dtsi b/target/linux/realtek/dts/rtl839x_zyxel_gs1920-24hp-common.dtsi
index c8bad10a469..eba9350c4d4 100644
--- a/target/linux/realtek/dts/rtl839x_zyxel_gs1920-24hp-common.dtsi
+++ b/target/linux/realtek/dts/rtl839x_zyxel_gs1920-24hp-common.dtsi
@@ -112,6 +112,40 @@
 		i2c-gpio,delay-us = <2>;
 		#address-cells = <1>;
 		#size-cells = <0>;
+
+		pse: ethernet-pse@20 {
+			reg = <0x20>;
+
+			pse-pis {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				PSE_PI(0)
+				PSE_PI(1)
+				PSE_PI(2)
+				PSE_PI(3)
+				PSE_PI(4)
+				PSE_PI(5)
+				PSE_PI(6)
+				PSE_PI(7)
+				PSE_PI(8)
+				PSE_PI(9)
+				PSE_PI(10)
+				PSE_PI(11)
+				PSE_PI(12)
+				PSE_PI(13)
+				PSE_PI(14)
+				PSE_PI(15)
+				PSE_PI(16)
+				PSE_PI(17)
+				PSE_PI(18)
+				PSE_PI(19)
+				PSE_PI(20)
+				PSE_PI(21)
+				PSE_PI(22)
+				PSE_PI(23)
+			};
+		};
 	};
 };
 
@@ -245,3 +279,28 @@
 		};
 	};
 };
+
+&phy0 { pses = <&pse_pi0>; };
+&phy1 { pses = <&pse_pi1>; };
+&phy2 { pses = <&pse_pi2>; };
+&phy3 { pses = <&pse_pi3>; };
+&phy4 { pses = <&pse_pi4>; };
+&phy5 { pses = <&pse_pi5>; };
+&phy6 { pses = <&pse_pi6>; };
+&phy7 { pses = <&pse_pi7>; };
+&phy8 { pses = <&pse_pi8>; };
+&phy9 { pses = <&pse_pi9>; };
+&phy10 { pses = <&pse_pi10>; };
+&phy11 { pses = <&pse_pi11>; };
+&phy12 { pses = <&pse_pi12>; };
+&phy13 { pses = <&pse_pi13>; };
+&phy14 { pses = <&pse_pi14>; };
+&phy15 { pses = <&pse_pi15>; };
+&phy16 { pses = <&pse_pi16>; };
+&phy17 { pses = <&pse_pi17>; };
+&phy18 { pses = <&pse_pi18>; };
+&phy19 { pses = <&pse_pi19>; };
+&phy20 { pses = <&pse_pi20>; };
+&phy21 { pses = <&pse_pi21>; };
+&phy22 { pses = <&pse_pi22>; };
+&phy23 { pses = <&pse_pi23>; };
diff --git a/target/linux/realtek/image/rtl839x.mk b/target/linux/realtek/image/rtl839x.mk
index 13e2b6a4d7f..a8b54c9db82 100644
--- a/target/linux/realtek/image/rtl839x.mk
+++ b/target/linux/realtek/image/rtl839x.mk
@@ -117,8 +117,7 @@ ifeq ($(IB),)
 endif
   DEVICE_VENDOR := Zyxel
   DEVICE_MODEL := GS1920-24HP
-  DEVICE_PACKAGES := \
-	  kmod-hwmon-lm85
+  DEVICE_PACKAGES := kmod-hwmon-lm85 kmod-pse-realtek-mcu-i2c
   $(Device/rt-loader-bootbase)
 endef