linux-kernel - [PATCH] mips: dts: realtek: Add MDIO controller

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Message-ID: <20250415205425.1491165-1-chris.packham@alliedtelesis.co.nz>
Date: Wed, 16 Apr 2025 08:54:25 +1200
From: Chris Packham <chris.packham@...iedtelesis.co.nz>
To: tsbogend@...ha.franken.de
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	sander@...nheule.net,
	devicetree@...r.kernel.org,
	linux-mips@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chris Packham <chris.packham@...iedtelesis.co.nz>
Subject: [PATCH] mips: dts: realtek: Add MDIO controller

Add a device tree node for the MDIO controller on the RTL9300 chips.

Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---

Notes:
    This was originally part of a series adding the bindings and the
    driver[1]. These were split off and have now been applied via net-next.
    That just leaves the dts changes to come in via linux-mips.
    
    [1] - https://lore.kernel.org/all/20250227213248.2010986-3-chris.packham@alliedtelesis.co.nz/

 arch/mips/boot/dts/realtek/rtl930x.dtsi | 33 +++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/mips/boot/dts/realtek/rtl930x.dtsi b/arch/mips/boot/dts/realtek/rtl930x.dtsi
index f2e57ea3a60c..101bab72a95f 100644
--- a/arch/mips/boot/dts/realtek/rtl930x.dtsi
+++ b/arch/mips/boot/dts/realtek/rtl930x.dtsi
@@ -69,6 +69,39 @@ i2c1: i2c@388 {
 			#size-cells = <0>;
 			status = "disabled";
 		};
+
+		mdio_controller: mdio-controller@...0 {
+			compatible = "realtek,rtl9301-mdio";
+			reg = <0xca00 0x200>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			mdio0: mdio-bus@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+			mdio1: mdio-bus@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+			mdio2: mdio-bus@2 {
+				reg = <2>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+			mdio3: mdio-bus@3 {
+				reg = <3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				status = "disabled";
+			};
+		};
 	};
 
 	soc: soc@...00000 {
-- 
2.49.0