linux-kernel - Re: [PATCH v2 5/6] arm: dts: mt2701: Add ethernet device node.

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Date:   Sat, 14 Jan 2017 11:32:30 +0100
From:   John Crispin <john@...ozen.org>
To:     Erin Lo <erin.lo@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     devicetree@...r.kernel.org, srv_heupstream@...iatek.com,
        Sean Wang <sean.wang@...iatek.com>,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 5/6] arm: dts: mt2701: Add ethernet device node.

Hi Erin,

small comment inline

On 13/01/2017 09:42, Erin Lo wrote:
> From: Sean Wang <sean.wang@...iatek.com>
> 
> Add ethernet device node for MT2701.
> 
> Signed-off-by: Sean Wang <sean.wang@...iatek.com>
> Signed-off-by: Erin Lo <erin.lo@...iatek.com>
> ---
>  arch/arm/boot/dts/mt2701-evb.dts | 40 ++++++++++++++++++++++++++++++++++++++++
>  arch/arm/boot/dts/mt2701.dtsi    | 22 ++++++++++++++++++++++
>  2 files changed, 62 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/mt2701-evb.dts b/arch/arm/boot/dts/mt2701-evb.dts
> index a483798..40abd3b 100644
> --- a/arch/arm/boot/dts/mt2701-evb.dts
> +++ b/arch/arm/boot/dts/mt2701-evb.dts
> @@ -28,7 +28,47 @@
>  	status = "okay";
>  };
>  
> +&eth {
> +	mac-address = [00 00 00 00 00 00];
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&gmac1_pins>;
> +	gmac1: mac@1 {
> +		compatible = "mediatek,eth-mac";
> +		reg = <1>;
> +		phy-handle = <&phy5>;
> +	};
> +
> +	mdio-bus {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		phy5: ethernet-phy@5 {
> +			reg = <5>;
> +			phy-mode = "rgmii-rxid";
> +		};
> +	};
> +};
> +
>  &pio {
> +	gmac1_pins: eth@0 {
> +		pins_eth {
> +			pinmux = <MT2701_PIN_275_MDC__FUNC_MDC>,
> +				 <MT2701_PIN_276_MDIO__FUNC_MDIO>,
> +				 <MT2701_PIN_262_G2_TXEN__FUNC_G2_TXEN>,
> +				 <MT2701_PIN_263_G2_TXD3__FUNC_G2_TXD3>,
> +				 <MT2701_PIN_264_G2_TXD2__FUNC_G2_TXD2>,
> +				 <MT2701_PIN_265_G2_TXD1__FUNC_G2_TXD1>,
> +				 <MT2701_PIN_266_G2_TXD0__FUNC_G2_TXD0>,
> +				 <MT2701_PIN_267_G2_TXC__FUNC_G2_TXC>,
> +				 <MT2701_PIN_268_G2_RXC__FUNC_G2_RXC>,
> +				 <MT2701_PIN_269_G2_RXD0__FUNC_G2_RXD0>,
> +				 <MT2701_PIN_270_G2_RXD1__FUNC_G2_RXD1>,
> +				 <MT2701_PIN_271_G2_RXD2__FUNC_G2_RXD2>,
> +				 <MT2701_PIN_272_G2_RXD3__FUNC_G2_RXD3>,
> +				 <MT2701_PIN_274_G2_RXDV__FUNC_G2_RXDV>;
> +		};
> +	};
> +
>  	spi_pins_a: spi0@0 {
>  		pins_spi {
>  			pinmux = <MT2701_PIN_53_SPI0_CSN__FUNC_SPI0_CS>,
> diff --git a/arch/arm/boot/dts/mt2701.dtsi b/arch/arm/boot/dts/mt2701.dtsi
> index 4f52019..3847f70 100644
> --- a/arch/arm/boot/dts/mt2701.dtsi
> +++ b/arch/arm/boot/dts/mt2701.dtsi
> @@ -381,6 +381,28 @@
>  		#clock-cells = <1>;
>  	};
>  
> +	eth: ethernet@...00000 {
> +		compatible = "mediatek,mt7623-eth";
> +		reg = <0 0x1b100000 0 0x20000>;
> +		interrupts = <GIC_SPI 200 IRQ_TYPE_LEVEL_LOW>,
> +			     <GIC_SPI 199 IRQ_TYPE_LEVEL_LOW>,
> +			     <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
> +		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
> +			 <&apmixedsys CLK_APMIXED_TRGPLL>,
> +			 <&ethsys CLK_ETHSYS_ESW>,
> +			 <&ethsys CLK_ETHSYS_GP2>,
> +			 <&ethsys CLK_ETHSYS_GP1>;
> +		clock-names = "ethif", "trgpll", "esw", "gp2", "gp1";
> +		power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
> +		resets = <&watchdog MT2701_TOPRGU_ETHDMA_RST>;

are you sure this is correct ? on mt7623 we point the reset at ethsys
and not the watchdog.

	John

> +		reset-names = "eth";
> +		mediatek,ethsys = <&ethsys>;
> +		mediatek,pctl = <&syscfg_pctl_a>;
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		status = "disabled";
> +	};
> +
>  	bdpsys: syscon@...00000 {
>  		compatible = "mediatek,mt2701-bdpsys", "syscon";
>  		reg = <0 0x1c000000 0 0x1000>;
>