linux-kernel - Re: [PATCH v2 4/5] arm: dts: mt7623: mux phy0 on Bananapi BPI-R2

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Date:   Wed, 8 Feb 2023 21:47:59 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Frank Wunderlich <frank-w@...lic-files.de>,
        erkin.bozoglu@...ont.com, Sean Wang <sean.wang@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>
Subject: Re: [PATCH v2 4/5] arm: dts: mt7623: mux phy0 on Bananapi BPI-R2

OK, hold this patch series, I'm going to send v3 soon with enabling both 
CPU ports to support changing the DSA master. We've got developments on 
the MediaTek ethernet driver and MT7530 DSA subdriver that surpassed my 
expectations.

Arınç

On 1.02.2023 21:56, arinc9.unal@...il.com wrote:
> From: Arınç ÜNAL <arinc.unal@...nc9.com>
> 
> Mux the MT7530 switch's phy0 to gmac5 which is wired to the SoC's gmac1.
> This achieves 2 Gbps total bandwidth to the CPU using the second RGMII.
> 
> With this, the interface name to access phy0 changes from wan to eth1.
> 
> Signed-off-by: Arınç ÜNAL <arinc.unal@...nc9.com>
> ---
>   arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts | 15 ++++++++++-----
>   1 file changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> index dc9b4f99eb8b..64700253fd35 100644
> --- a/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> +++ b/arch/arm/boot/dts/mt7623n-bananapi-bpi-r2.dts
> @@ -182,6 +182,12 @@ fixed-link {
>   	};
>   };
>   
> +&gmac1 {
> +	status = "okay";
> +	phy-mode = "rgmii";
> +	phy-handle = <&ethphy0>;
> +};
> +
>   &eth {
>   	status = "okay";
>   
> @@ -189,6 +195,10 @@ mdio-bus {
>   		#address-cells = <1>;
>   		#size-cells = <0>;
>   
> +		ethphy0: ethernet-phy@0 {
> +			reg = <0>;
> +		};
> +
>   		switch@1f {
>   			compatible = "mediatek,mt7530";
>   			reg = <0x1f>;
> @@ -200,11 +210,6 @@ ports {
>   				#address-cells = <1>;
>   				#size-cells = <0>;
>   
> -				port@0 {
> -					reg = <0>;
> -					label = "wan";
> -				};
> -
>   				port@1 {
>   					reg = <1>;
>   					label = "lan0";