[PATCH v3 net-next 4/5] dsa: Add spi support to Microchip KSZ switches

[PATCH v3 net-next 4/5] dsa: Add spi support to Microchip KSZ switches

[Woojung.Huh]

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

A sample SPI configuration for Microchip KSZ switches.

Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
---
 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..8a13966
--- /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@10001000 {
+			fixed-link {
+				reg = <7>
+				speed = <1000>;
+				duplex-full;
+			};
+		};
+
+		spi1: spi@f8008000 {
+			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 = <&eth0>;
+						fixed-link {
+							speed = <1000>;
+							full-duplex;
+						};
+					};
+				};
+			};
+		};
-- 
2.7.4

Re: [PATCH v3 net-next 4/5] dsa: Add spi support to Microchip KSZ switches

[Florian Fainelli]

On 05/19/2017 03:57 PM, Woojung.Huh@microchip.com wrote:
> From: Woojung Huh <Woojung.Huh@microchip.com>
> 
> A sample SPI configuration for Microchip KSZ switches.
> 
> Signed-off-by: Woojung Huh <Woojung.Huh@microchip.com>
> Reviewed-by: Andrew Lunn <andrew@lunn.ch>

Subject should be something like:

dt-bindings: net: dsa: Add Microchip KSZ switches binding

With that fixed and the nits below:

Reviewed-by: Florian Fainelli <f.fainelli@gmail.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..8a13966
> --- /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@10001000 {
> +			fixed-link {
> +				reg = <7>

There is a missing semicolon, and for a fixed-link, there is no "reg"
property.

> +				speed = <1000>;
> +				duplex-full;

Actually the correct property is named "full-duplex" (like you put it
for the switch)

> +			};
> +		};
> +
> +		spi1: spi@f8008000 {
> +			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 = <&eth0>;
> +						fixed-link {
> +							speed = <1000>;
> +							full-duplex;
> +						};
> +					};
> +				};
> +			};
> +		};
> 


-- 
Florian