linux-kernel - Re: [PATCH 3/8] ARM: dts: armada-388-clearfog: Utilize new DSA binding

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Message-ID: <87shoyeo2j.fsf@free-electrons.com>
Date:   Wed, 04 Jan 2017 18:23:48 +0100
From:   Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        vivien.didelot@...oirfairelinux.com,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list)
Subject: Re: [PATCH 3/8] ARM: dts: armada-388-clearfog: Utilize new DSA binding

Hi Florian,
 
 On lun., janv. 02 2017, Florian Fainelli <f.fainelli@...il.com> wrote:

> Utilize the new DSA binding, introduced with commit 8c5ad1d6179d ("net:
> dsa: Document new binding"). The legacy binding node is kept included, but is
> marked disabled.
>

I tested this patch on mvebu/dt (I needed to reduce the context to apply
the patch due to the changes made by Russell King on this file). I also
set the status of the old binding to "disable" (instead of "okay").

It seems to work with the limited test did:
ifconfig eth1 up
udhcpc -i lan1
iperf -c mylaptop

(same for lan4)

However is there a way to be sure that the new binding is used?

Gregory

> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>  arch/arm/boot/dts/armada-388-clearfog.dts | 65 +++++++++++++++++++++++++++++++
>  1 file changed, 65 insertions(+)
>
> diff --git a/arch/arm/boot/dts/armada-388-clearfog.dts b/arch/arm/boot/dts/armada-388-clearfog.dts
> index 71ce201c903e..35207aa1f4ec 100644
> --- a/arch/arm/boot/dts/armada-388-clearfog.dts
> +++ b/arch/arm/boot/dts/armada-388-clearfog.dts
> @@ -351,6 +351,8 @@
>  	};
>  
>  	dsa@0 {
> +		status = "okay";
> +
>  		compatible = "marvell,dsa";
>  		dsa,ethernet = <&eth1>;
>  		dsa,mii-bus = <&mdio>;
> @@ -444,3 +446,66 @@
>  		status = "disabled";
>  	};
>  };
> +
> +&mdio {
> +	status = "okay";
> +
> +	switch@4 {
> +		compatible = "marvell,mv88e6085";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		reg = <4>;
> +		pinctrl-0 = <&clearfog_dsa0_clk_pins &clearfog_dsa0_pins>;
> +		pinctrl-names = "default";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				label = "lan5";
> +			};
> +
> +			port@1 {
> +				reg = <1>;
> +				label = "lan4";
> +			};
> +
> +			port@2 {
> +				reg = <2>;
> +				label = "lan3";
> +			};
> +
> +			port@3 {
> +				reg = <3>;
> +				label = "lan2";
> +			};
> +
> +			port@4 {
> +				reg = <4>;
> +				label = "lan1";
> +			};
> +
> +			port@5 {
> +				reg = <5>;
> +				label = "cpu";
> +				ethernet = <&eth1>;
> +				fixed-link {
> +					speed = <1000>;
> +					full-duplex;
> +				};
> +			};
> +
> +			port@6 {
> +				/* 88E1512 external phy */
> +				reg = <6>;
> +				label = "lan6";
> +				fixed-link {
> +					speed = <1000>;
> +					full-duplex;
> +				};
> +			};
> +		};
> +	};
> +};
> -- 
> 2.9.3
>

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com