linux-kernel - Re: [PATCH 5/7] arm64: dts: mediatek: mt8195-demo: enable ethernet

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Date:   Wed, 27 Apr 2022 14:25:23 +0800
From:   Macpaul Lin <macpaul.lin@...iatek.com>
To:     Fabien Parent <fparent@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.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>
Subject: Re: [PATCH 5/7] arm64: dts: mediatek: mt8195-demo: enable ethernet

On Tue, 2022-04-26 at 15:41 +0200, Fabien Parent wrote:
> Enable ethernet on the MT8195 demo board.
> 
> Signed-off-by: Fabien Parent <fparent@...libre.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 108
> +++++++++++++++++++
>  1 file changed, 108 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> index 08cab3b3943b..0b7985486e2a 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> +++ b/arch/arm64/boot/dts/mediatek/mt8195-demo.dts
> @@ -80,6 +80,30 @@ optee_reserved: optee@...00000 {
>  	};
>  };
>  
> +&eth {
> +	phy-mode = "rgmii-rxid";
> +	phy-handle = <&eth_phy>;
> +	snps,reset-gpio = <&pio 93 GPIO_ACTIVE_HIGH>;
> +	snps,reset-delays-us = <0 10000 10000>;
> +	mediatek,tx-delay-ps = <2030>;
> +	pinctrl-names = "default", "sleep";
> +	pinctrl-0 = <&eth_default_pins>;
> +	pinctrl-1 = <&eth_sleep_pins>;
> +	status = "okay";
> +
> +	mdio {
> +		compatible = "snps,dwmac-mdio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		eth_phy: phy@1 {
> +			compatible = "ethernet-phy-id001c.c916";
> +			#phy-cells = <0>;
> +			reg = <0x1>;
> +		};
> +	};
> +};
> +
>  &i2c6 {
>  	clock-frequency = <400000>;
>  	pinctrl-0 = <&i2c6_pins>;
> @@ -260,6 +284,90 @@ &mt6359_vsram_others_ldo_reg {
>  };
>  
>  &pio {
> +	eth_default_pins: eth-default-pins {
> +		pins-cc {
> +			pinmux = <PINMUX_GPIO85__FUNC_GBE_TXC>,
> +				 <PINMUX_GPIO88__FUNC_GBE_TXEN>,
> +				 <PINMUX_GPIO87__FUNC_GBE_RXDV>,
> +				 <PINMUX_GPIO86__FUNC_GBE_RXC>;
> +			drive-strength = <MTK_DRIVE_8mA>;
> +		};
> +
> +		pins-mdio {
> +			pinmux = <PINMUX_GPIO89__FUNC_GBE_MDC>,
> +				 <PINMUX_GPIO90__FUNC_GBE_MDIO>;
> +			input-enable;
> +		};
> +
> +		pins-phy-reset {
> +			pinmux = <PINMUX_GPIO93__FUNC_GPIO93>;
> +		};
> +
> +		pins-power {
> +			pinmux = <PINMUX_GPIO91__FUNC_GPIO91>,
> +				 <PINMUX_GPIO92__FUNC_GPIO92>;
> +			output-high;
> +		};
> +
> +		pins-rxd {
> +			pinmux = <PINMUX_GPIO81__FUNC_GBE_RXD3>,
> +				 <PINMUX_GPIO82__FUNC_GBE_RXD2>,
> +				 <PINMUX_GPIO83__FUNC_GBE_RXD1>,
> +				 <PINMUX_GPIO84__FUNC_GBE_RXD0>;
> +		};
> +
> +		pins-txd {
> +			pinmux = <PINMUX_GPIO77__FUNC_GBE_TXD3>,
> +				 <PINMUX_GPIO78__FUNC_GBE_TXD2>,
> +				 <PINMUX_GPIO79__FUNC_GBE_TXD1>,
> +				 <PINMUX_GPIO80__FUNC_GBE_TXD0>;
> +			drive-strength = <MTK_DRIVE_8mA>;
> +		};
> +	};
> +
> +	eth_sleep_pins: eth-sleep-pins {
> +		pins-cc {
> +			pinmux = <PINMUX_GPIO85__FUNC_GPIO85>,
> +				 <PINMUX_GPIO88__FUNC_GPIO88>,
> +				 <PINMUX_GPIO87__FUNC_GPIO87>,
> +				 <PINMUX_GPIO86__FUNC_GPIO86>;
> +		};
> +
> +		pins-mdio {
> +			pinmux = <PINMUX_GPIO89__FUNC_GPIO89>,
> +				 <PINMUX_GPIO90__FUNC_GPIO90>;
> +			input-disable;
> +			bias-disable;
> +		};
> +
> +		pins-phy-reset {
> +			pinmux = <PINMUX_GPIO93__FUNC_GPIO93>;
> +			input-disable;
> +			bias-disable;
> +		};
> +
> +		pins-power {
> +			pinmux = <PINMUX_GPIO91__FUNC_GPIO91>,
> +				 <PINMUX_GPIO92__FUNC_GPIO92>;
> +			input-disable;
> +			bias-disable;
> +		};
> +
> +		pins-rxd {
> +			pinmux = <PINMUX_GPIO81__FUNC_GPIO81>,
> +				 <PINMUX_GPIO82__FUNC_GPIO82>,
> +				 <PINMUX_GPIO83__FUNC_GPIO83>,
> +				 <PINMUX_GPIO84__FUNC_GPIO84>;
> +		};
> +
> +		pins-txd {
> +			pinmux = <PINMUX_GPIO77__FUNC_GPIO77>,
> +				 <PINMUX_GPIO78__FUNC_GPIO78>,
> +				 <PINMUX_GPIO79__FUNC_GPIO79>,
> +				 <PINMUX_GPIO80__FUNC_GPIO80>;
> +		};
> +	};
> +
>  	gpio_keys_pins: gpio-keys-pins {
>  		pins {
>  			pinmux = <PINMUX_GPIO106__FUNC_GPIO106>;

Tested-by: Macpaul Lin <macpaul.lin@...iatek.com>

Regards,
Macpaul Lin