linux-kernel - [PATCH 4.9 32/61] ARM: dts: imx6q-bx50v3: Add internal switch

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Message-Id: <20200601174017.730458932@linuxfoundation.org>
Date:   Mon,  1 Jun 2020 19:53:39 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 32/61] ARM: dts: imx6q-bx50v3: Add internal switch

From: Sebastian Reichel <sebastian.reichel@...labora.co.uk>

[ Upstream commit e26dead442689a861358f33126210b0f8de615a9 ]

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>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm/boot/dts/imx6q-bx50v3.dtsi | 62 +++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/arch/arm/boot/dts/imx6q-bx50v3.dtsi b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
index e4a415fd899b..ff8928a0b406 100644
--- a/arch/arm/boot/dts/imx6q-bx50v3.dtsi
+++ b/arch/arm/boot/dts/imx6q-bx50v3.dtsi
@@ -92,6 +92,56 @@
 		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,mv88e6085"; /* 88e6240*/
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+
+			switch_ports: ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				switchphy0: switchphy@0 {
+					reg = <0>;
+				};
+
+				switchphy1: switchphy@1 {
+					reg = <1>;
+				};
+
+				switchphy2: switchphy@2 {
+					reg = <2>;
+				};
+
+				switchphy3: switchphy@3 {
+					reg = <3>;
+				};
+
+				switchphy4: switchphy@4 {
+					reg = <4>;
+				};
+			};
+		};
+	};
 };
 
 &ecspi5 {
@@ -299,3 +349,15 @@
 		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>;
+	};
+};
-- 
2.25.1