netdev - [PATCH net-next 4/5] dsa: Microchip KSZ switches SPI devicetree configuration

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Date:   Fri, 5 May 2017 23:18:05 +0000
From:   <Woojung.Huh@...rochip.com>
To:     <andrew@...n.ch>, <f.fainelli@...il.com>,
        <vivien.didelot@...oirfairelinux.com>
CC:     <netdev@...r.kernel.org>, <davem@...emloft.net>,
        <UNGLinuxDriver@...rochip.com>
Subject: [PATCH net-next 4/5] dsa: Microchip KSZ switches SPI devicetree
 configuration

From: Woojung Huh <Woojung.Huh@...rochip.com>

A sample SPI configuration for Microchip KSZ switches.

Signed-off-by: Woojung Huh <Woojung.Huh@...rochip.com>
---
 Documentation/devicetree/bindings/net/dsa/ksz.txt | 73 +++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/dsa/ksz.txt

diff --git a/Documentation/devicetree/bindings/net/dsa/ksz.txt b/Documentation/devicetree/bindings/net/dsa/ksz.txt
new file mode 100644
index 0000000..9cca7d4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/ksz.txt
@@ -0,0 +1,73 @@
+Microchip KSZ Series Ethernet switches
+==================================
+
+Required properties:
+
+- compatible: For external switch chips, compatible string must be exactly one
+  of: "microchip,ksz9477"
+
+See Documentation/devicetree/bindings/dsa/dsa.txt for a list of additional
+required and optional properties.
+
+Examples:
+
+Ethernet switch connected via SPI to the host, CPU port wired to eth0:
+
+		eth0: ethernet@...01000 {
+			fixed-link {
+				reg = <7>
+				speed = <1000>;
+				duplex-full;
+			};
+		};
+
+		spi1: spi@...08000 {
+		pinctrl-0 = <&pinctrl_spi_ksz>;
+		cs-gpios = <&pioC 25 0>;
+		id = <1>;
+		status = "okay";
+
+		ksz9477: ksz9477@0 {
+			compatible = "microchip,ksz9477";
+			reg = <0>;
+
+			spi-max-frequency = <44000000>;
+			spi-cpha;
+			spi-cpol;
+
+			status = "okay";
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					label = "lan1";
+				};
+				port@1 {
+					reg = <1>;
+					label = "lan2";
+				};
+				port@2 {
+					reg = <2>;
+					label = "lan3";
+				};
+				port@3 {
+					reg = <3>;
+					label = "lan4";
+				};
+				port@4 {
+					reg = <4>;
+					label = "lan5";
+				};
+				port@5 {
+					reg = <5>;
+					label = "cpu";
+					ethernet = <&macb0>;
+					fixed-link {
+						speed = <1000>;
+						full-duplex;
+					};
+				};
+			};
+		};
+		};
-- 
2.7.4