linux-kernel - [PATCH v2] ARM: dts: sun7i: Add BCM53125 switch nodes to the lamobo-r1 board

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Date:	Sat, 25 Jun 2016 20:04:41 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	maxime.ripard@...e-electrons.com
Cc:	Florian Fainelli <f.fainelli@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Russell King <linux@...linux.org.uk>,
	Chen-Yu Tsai <wens@...e.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
	DEVICE TREE BINDINGS),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM PORT),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v2] ARM: dts: sun7i: Add BCM53125 switch nodes to the lamobo-r1 board

Now that we have a proper binding for Ethernet switches hanging off
different buses, and a driver for the BCM53125 switch, add its Device
Tree as a child MDIO node, at MDIO address 30 (Broadcom pseudo-PHY
address) and describe the ports layout of the Lamobo R1 board.

This switch is hanging off the GMAC MDIO controller, not the
allwinner,sun4i-a10-mdio MDIO controller which is labeled "mdio"

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
Changes in v2:

- change the unit specifier to use hexadecimal
- name the GMAC MDIO controller label "mdio-gmac"
- specify board name in subject

Maxime,

You can find the B53 driver and its binding here:

https://git.kernel.org/cgit/linux/kernel/git/davem/net-next.git/commit/?id=23c731e830009a51a39a7a558179007235c84eb7

 arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts | 60 +++++++++++++++++++++++++++++--
 1 file changed, 57 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
index 5ee43d8bf174..99e71cca1da1 100644
--- a/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
+++ b/arch/arm/boot/dts/sun7i-a20-lamobo-r1.dts
@@ -110,13 +110,67 @@
 &gmac {
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac_pins_rgmii_a>;
-	phy = <&phy1>;
 	phy-mode = "rgmii";
 	phy-supply = <&reg_gmac_3v3>;
 	status = "okay";
 
-	phy1: ethernet-phy@1 {
-		reg = <1>;
+	fixed-link {
+		speed = <1000>;
+		full-duplex;
+	};
+
+	mdio-gmac {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		switch: ethernet-switch@1e {
+			compatible = "brcm,bcm53125";
+			reg = <30>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port0: port@0 {
+					reg = <0>;
+					label = "lan2";
+				};
+
+				port1: port@1 {
+					reg = <1>;
+					label = "lan3";
+				};
+
+				port2: port@2 {
+					reg = <2>;
+					label = "lan4";
+				};
+
+				port3: port@3 {
+					reg = <3>;
+					label = "wan";
+				};
+
+				port4: port@4 {
+					reg = <4>;
+					label = "lan1";
+				};
+
+				port8: port@8 {
+					reg = <8>;
+					label = "cpu";
+					ethernet = <&gmac>;
+					phy-mode = "rgmii";
+					fixed-link {
+						speed = <1000>;
+						full-duplex;
+					};
+				};
+			};
+		};
 	};
 };
 
-- 
2.7.4