linux-kernel - Re: [PATCH v2 3/5] arm64: dts: ti: k3-j784s4-main: Add CPSW9G nodes

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Date: Fri, 19 Jan 2024 07:19:33 -0600
From: Nishanth Menon <nm@...com>
To: Chintan Vankar <c-vankar@...com>
CC: Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>, Tero
 Kristo <kristo@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <afd@...com>, <srk@...com>, <s-vadapalli@...com>,
        <r-gunasekaran@...com>, <danishanwar@...com>, <tony@...mide.com>
Subject: Re: [PATCH v2 3/5] arm64: dts: ti: k3-j784s4-main: Add CPSW9G nodes

On 15:14-20240118, Chintan Vankar wrote:
> From: Siddharth Vadapalli <s-vadapalli@...com>
> 
> J784S4 SoC has a 9 port Ethernet Switch instance with 8 external
> ports and 1 host port, referred to as CPSW9G.
> 
> Add device-tree nodes for CPSW9G and disable it by default.
> Device-tree overlays will be used to enable it.
> 
> Signed-off-by: Siddharth Vadapalli <s-vadapalli@...com>
> Signed-off-by: Chintan Vankar <c-vankar@...com>
> ---
>  arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi | 114 +++++++++++++++++++++
>  1 file changed, 114 insertions(+)

Any reason why we cant squash this to previous patch with
something like "Add main cpsw nodes" ?
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> index 191fdbe02877..9aebce8a51ab 100644
> --- a/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j784s4-main.dtsi
> @@ -54,6 +54,13 @@ cpsw1_phy_gmii_sel: phy@...4 {
>  			#phy-cells = <1>;
>  		};
>  
> +		cpsw0_phy_gmii_sel: phy@...4 {
> +			compatible = "ti,j784s4-cpsw9g-phy-gmii-sel";
> +			ti,qsgmii-main-ports = <7>, <7>;
> +			reg = <0x4044 0x20>;
> +			#phy-cells = <1>;
> +		};
> +
>  		serdes_ln_ctrl: mux-controller@...0 {
>  			compatible = "reg-mux";
>  			reg = <0x00004080 0x30>;
> @@ -1248,6 +1255,113 @@ cpts@...d0000 {
>  		};
>  	};
>  
> +	main_cpsw0: ethernet@...0000 {
> +		compatible = "ti,j784s4-cpswxg-nuss";
> +		reg = <0x00 0xc000000 0x00 0x200000>;
> +		reg-names = "cpsw_nuss";
> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges = <0x00 0x00 0x00 0xc000000 0x00 0x200000>;
> +		dma-coherent;
> +		clocks = <&k3_clks 64 0>;
> +		clock-names = "fck";
> +		power-domains = <&k3_pds 64 TI_SCI_PD_EXCLUSIVE>;
> +
> +		dmas = <&main_udmap 0xca00>,
> +		       <&main_udmap 0xca01>,
> +		       <&main_udmap 0xca02>,
> +		       <&main_udmap 0xca03>,
> +		       <&main_udmap 0xca04>,
> +		       <&main_udmap 0xca05>,
> +		       <&main_udmap 0xca06>,
> +		       <&main_udmap 0xca07>,
> +		       <&main_udmap 0x4a00>;
> +		dma-names = "tx0", "tx1", "tx2", "tx3",
> +			    "tx4", "tx5", "tx6", "tx7",
> +			    "rx";
> +
> +		status = "disabled";
> +
> +		ethernet-ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			main_cpsw0_port1: port@1 {
> +				reg = <1>;
> +				label = "port1";
> +				ti,mac-only;
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port2: port@2 {
> +				reg = <2>;
> +				label = "port2";
> +				ti,mac-only;
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port3: port@3 {
> +				reg = <3>;
> +				label = "port3";
> +				ti,mac-only;
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port4: port@4 {
> +				reg = <4>;
> +				label = "port4";
> +				ti,mac-only;
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port5: port@5 {
> +				reg = <5>;
> +				label = "port5";
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port6: port@6 {
> +				reg = <6>;
> +				label = "port6";
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port7: port@7 {
> +				reg = <7>;
> +				label = "port7";
> +				status = "disabled";
> +			};
> +
> +			main_cpsw0_port8: port@8 {
> +				reg = <8>;
> +				label = "port8";
> +				status = "disabled";
> +			};
> +		};
> +
> +		main_cpsw0_mdio: mdio@f00 {
> +			compatible = "ti,cpsw-mdio","ti,davinci_mdio";
> +			reg = <0x00 0xf00 0x00 0x100>;
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +			clocks = <&k3_clks 64 0>;
> +			clock-names = "fck";
> +			bus_freq = <1000000>;
> +			status = "disabled";
> +		};
> +
> +		cpts@...00 {
> +			compatible = "ti,am65-cpts";
> +			reg = <0x00 0x3d000 0x00 0x400>;
> +			clocks = <&k3_clks 64 3>;
> +			clock-names = "cpts";
> +			interrupts-extended = <&gic500 GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "cpts";
> +			ti,cpts-ext-ts-inputs = <4>;
> +			ti,cpts-periodic-outputs = <2>;
> +		};
> +	};
> +
>  	main_cpsw1: ethernet@...0000 {
>  		compatible = "ti,j721e-cpsw-nuss";
>  		#address-cells = <2>;
> -- 
> 2.34.1
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D