Re: [PATCH 2/2] arm64: dts: marvell: eDPU: add support for version with external switch

From: Gregory CLEMENT <gregory.clement@bootlin•com>
To: Robert Marko <robert.marko@sartura•hr>,
	andrew@lunn•ch, sebastian.hesselbarth@gmail•com,
	robh+dt@kernel•org, krzysztof.kozlowski+dt@linaro•org,
	conor+dt@kernel•org, linux-arm-kernel@lists•infradead.org,
	devicetree@vger•kernel.org, linux-kernel@vger•kernel.org
Cc: luka.perkov@sartura•hr, Robert Marko <robert.marko@sartura•hr>
Subject: Re: [PATCH 2/2] arm64: dts: marvell: eDPU: add support for version with external switch
Date: Wed, 20 Sep 2023 11:57:45 +0200	[thread overview]
Message-ID: <875y45f9pi.fsf@BL-laptop> (raw)
In-Reply-To: <20230914094550.1519097-2-robert.marko@sartura.hr>

Robert Marko <robert.marko@sartura•hr> writes:

> New revision of eDPU uses an Marvell MV88E6361 switch to connect the SFP
> cage and G.hn IC instead of connecting them directly to the ethernet
> controllers.
>
> U-Boot will enable the switch node and disable the unused ethernet
> controller.
>

Applied on mvebu/dt64

Thanks,

Gregory

> Signed-off-by: Robert Marko <robert.marko@sartura•hr>
> ---
>  .../boot/dts/marvell/armada-3720-eDPU.dts     | 47 +++++++++++++++++++
>  1 file changed, 47 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
> index 57fc698e55d0..d6d37a1f6f38 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-eDPU.dts
> @@ -12,3 +12,50 @@ / {
>  &eth0 {
>  	phy-mode = "2500base-x";
>  };
> +
> +/*
> + * External MV88E6361 switch is only available on v2 of the board.
> + * U-Boot will enable the MDIO bus and switch nodes.
> + */
> +&mdio {
> +	status = "disabled";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&smi_pins>;
> +
> +	/* Actual device is MV88E6361 */
> +	switch: switch@0 {
> +		compatible = "marvell,mv88e6190";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		reg = <0>;
> +		status = "disabled";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				label = "cpu";
> +				phy-mode = "2500base-x";
> +				managed = "in-band-status";
> +				ethernet = <&eth0>;
> +			};
> +
> +			port@9 {
> +				reg = <9>;
> +				label = "downlink";
> +				phy-mode = "2500base-x";
> +				managed = "in-band-status";
> +			};
> +
> +			port@a {
> +				reg = <10>;
> +				label = "uplink";
> +				phy-mode = "2500base-x";
> +				managed = "in-band-status";
> +				sfp = <&sfp_eth1>;
> +			};
> +		};
> +	};
> +};
> -- 
> 2.41.0
>

-- 
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com

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