linux-kernel - [PATCHv1 3/6] ARM: dts: imx6q-bx50v3: Add internal switch

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Message-Id: <20180103122609.5482-4-sebastian.reichel@collabora.co.uk>
Date:   Wed,  3 Jan 2018 13:26:06 +0100
From:   Sebastian Reichel <sebastian.reichel@...labora.co.uk>
To:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <kernel@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>
Cc:     Ian Ray <ian.ray@...com>, Nandor Han <nandor.han@...com>,
        Rob Herring <robh+dt@...nel.org>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>
Subject: [PATCHv1 3/6] ARM: dts: imx6q-bx50v3: Add internal switch

B850v3, B650v3 and B450v3 all have a GPIO bit banged MDIO bus to
communicate with a Marvell switch. On all devices the switch is
connected to a PCI based network card, which needs to be referenced
by DT, so this also adds the common PCI root node.

Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
---
 arch/arm/boot/dts/imx6q-bx50v3.dtsi | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/imx6q-bx50v3.dtsi b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
index b915837bbb5f..689981e90e68 100644
--- a/arch/arm/boot/dts/imx6q-bx50v3.dtsi
+++ b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
@@ -92,6 +92,31 @@
 		mux-int-port = <1>;
 		mux-ext-port = <4>;
 	};
+
+	aliases {
+		mdio-gpio0 = &mdio0;
+	};
+
+	mdio0: mdio-gpio {
+		compatible = "virtual,mdio-gpio";
+		gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>, /* mdc */
+			<&gpio2 7 GPIO_ACTIVE_HIGH>; /* mdio */
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		switch@0 {
+				compatible = "marvell,mv88e6240";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0>;
+
+				switch_ports: ports {
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+		};
+	};
 };
 
 &ecspi5 {
@@ -326,3 +351,15 @@
 		tcxo-clock-frequency = <26000000>;
 	};
 };
+
+&pcie {
+	/* Synopsys, Inc. Device */
+	pci_root: root@0,0 {
+		compatible = "pci16c3,abcd";
+		reg = <0x00000000 0 0 0 0>;
+
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+	};
+};
-- 
2.15.1