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From:   Robert Marko <robert.marko@sartura.hr>
To:     andrew@lunn.ch, gregory.clement@bootlin.com,
        sebastian.hesselbarth@gmail.com, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Cc:     luka.perkov@sartura.hr, Robert Marko <robert.marko@sartura.hr>
Subject: [PATCH 2/2] arm64: dts: marvell: eDPU: add support for version with external switch
Date:   Thu, 14 Sep 2023 11:45:01 +0200
Message-ID: <20230914094550.1519097-2-robert.marko@sartura.hr>
In-Reply-To: <20230914094550.1519097-1-robert.marko@sartura.hr>
References: <20230914094550.1519097-1-robert.marko@sartura.hr>
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New revision of eDPU uses an Marvell MV88E6361 switch to connect the SFP
cage and G.hn IC instead of connecting them directly to the ethernet
controllers.

U-Boot will enable the switch node and disable the unused ethernet
controller.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 .../boot/dts/marvell/armada-3720-eDPU.dts     | 47 +++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
index 57fc698e55d0..d6d37a1f6f38 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
@@ -12,3 +12,50 @@ / {
 &eth0 {
 	phy-mode = "2500base-x";
 };
+
+/*
+ * External MV88E6361 switch is only available on v2 of the board.
+ * U-Boot will enable the MDIO bus and switch nodes.
+ */
+&mdio {
+	status = "disabled";
+	pinctrl-names = "default";
+	pinctrl-0 = <&smi_pins>;
+
+	/* Actual device is MV88E6361 */
+	switch: switch@0 {
+		compatible = "marvell,mv88e6190";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0>;
+		status = "disabled";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				label = "cpu";
+				phy-mode = "2500base-x";
+				managed = "in-band-status";
+				ethernet = <&eth0>;
+			};
+
+			port@9 {
+				reg = <9>;
+				label = "downlink";
+				phy-mode = "2500base-x";
+				managed = "in-band-status";
+			};
+
+			port@a {
+				reg = <10>;
+				label = "uplink";
+				phy-mode = "2500base-x";
+				managed = "in-band-status";
+				sfp = <&sfp_eth1>;
+			};
+		};
+	};
+};
-- 
2.41.0