netdev - Re: [PATCH 9/9] arm64: dts: qcom: sa8775p-ride: enable EMAC1

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Date: Mon, 7 Aug 2023 16:50:40 -0500
From: Andrew Halaney <ahalaney@...hat.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Andy Gross <agross@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Alex Elder <elder@...aro.org>, Srini Kandagatla <srinivas.kandagatla@...aro.org>, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	netdev@...r.kernel.org, Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 9/9] arm64: dts: qcom: sa8775p-ride: enable EMAC1

On Mon, Aug 07, 2023 at 09:35:07PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Enable the second MAC on sa8775p-ride.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/sa8775p-ride.dts | 74 +++++++++++++++++++++++
>  1 file changed, 74 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> index af50aa2d9b10..0862bfb4c580 100644
> --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dts
> @@ -356,6 +356,80 @@ queue3 {
>  	};
>  };
>  
> +&ethernet1 {
> +	phy-mode = "sgmii";
> +	phy-handle = <&sgmii_phy1>;
> +
> +	pinctrl-0 = <&ethernet1_default>;
> +	pinctrl-names = "default";

As I stated in the earlier patch that added ethernet1_default, I don't
think it makes sense. All the MDIO is happening via the pins described
via ethernet0_default.

> +
> +	snps,mtl-rx-config = <&mtl_rx_setup1>;
> +	snps,mtl-tx-config = <&mtl_tx_setup1>;
> +	snps,ps-speed = <1000>;
> +	snps,shared-mdio = <&mdio0>;

same question as Andrew Lunn, but I'll let you respond to one of his
threads.

> +
> +	status = "okay";
> +
> +	mtl_rx_setup1: rx-queues-config {
> +		snps,rx-queues-to-use = <4>;
> +		snps,rx-sched-sp;
> +
> +		queue0 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x0>;
> +			snps,route-up;
> +			snps,priority = <0x1>;
> +		};
> +
> +		queue1 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x1>;
> +			snps,route-ptp;
> +		};
> +
> +		queue2 {
> +			snps,avb-algorithm;
> +			snps,map-to-dma-channel = <0x2>;
> +			snps,route-avcp;
> +		};
> +
> +		queue3 {
> +			snps,avb-algorithm;
> +			snps,map-to-dma-channel = <0x3>;
> +			snps,priority = <0xc>;
> +		};
> +	};
> +
> +	mtl_tx_setup1: tx-queues-config {
> +		snps,tx-queues-to-use = <4>;
> +		snps,tx-sched-sp;
> +
> +		queue0 {
> +			snps,dcb-algorithm;
> +		};
> +
> +		queue1 {
> +			snps,dcb-algorithm;
> +		};
> +
> +		queue2 {
> +			snps,avb-algorithm;
> +			snps,send_slope = <0x1000>;
> +			snps,idle_slope = <0x1000>;
> +			snps,high_credit = <0x3e800>;
> +			snps,low_credit = <0xffc18000>;
> +		};
> +
> +		queue3 {
> +			snps,avb-algorithm;
> +			snps,send_slope = <0x1000>;
> +			snps,idle_slope = <0x1000>;
> +			snps,high_credit = <0x3e800>;
> +			snps,low_credit = <0xffc18000>;
> +		};
> +	};
> +};
> +
>  &i2c11 {
>  	clock-frequency = <400000>;
>  	pinctrl-0 = <&qup_i2c11_default>;
> -- 
> 2.39.2
>