netdev - Re: [PATCH v2 1/5] dt-bindings: net: Add Qualcomm ethqos binding

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Date:   Tue, 15 Jan 2019 15:03:17 -0600
From:   Rob Herring <robh@...nel.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     David S Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org,
        Niklas Cassel <niklas.cassel@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mark Rutland <mark.rutland@....com>, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/5] dt-bindings: net: Add Qualcomm ethqos binding

On Tue, Jan 08, 2019 at 09:59:22PM +0530, Vinod Koul wrote:
> Add support for Qualcomm ethqos found in some SoCs like QCS404.
> 
> Signed-off-by: Vinod Koul <vkoul@...nel.org>
> ---
>  .../devicetree/bindings/net/qcom,dwmac.txt    | 129 ++++++++++++++++++
>  1 file changed, 129 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/net/qcom,dwmac.txt
> 
> diff --git a/Documentation/devicetree/bindings/net/qcom,dwmac.txt b/Documentation/devicetree/bindings/net/qcom,dwmac.txt
> new file mode 100644
> index 000000000000..652d2213c3ac
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/qcom,dwmac.txt

qcom,ethqos.txt?

> @@ -0,0 +1,129 @@
> +Qualcomm Ethernet ETHQOS device
> +

Perhaps some details like speeds and version of IP. There's lots of 
variants.

> +This device has following properties:
> +
> +Required properties:
> +
> +- compatible: Should be qcom,ethqos-qcs404"

qcom,qcs404-ethqos

> +
> +- reg: Address and length of the register set for the device
> +
> +- reg-names: Should contain register names "stmmaceth", "rgmii"
> +
> +- clocks: Should contain phandle to clocks
> +
> +- clock-names: Should contain clock names "stmmaceth", "pclk",
> +		"ptp_ref", "rgmii"
> +
> +- interrupts: Should contain phandle to interrupts
> +
> +- interrupt-names: Should contain interrupt names "macirq", "eth_lpi"
> +
> +Rest of the properties are defined in stmmac.txt file in same directory
> +
> +
> +Example:
> +
> +ethernet: ethernet@...0000 {
> +	compatible = "qcom,ethqos-qcs404";
> +	reg = <0x07a80000 0x10000>,
> +		<0x07a96000 0x100>;
> +	reg-names = "stmmaceth", "rgmii";
> +	clock-names = "stmmaceth", "pclk", "ptp_ref", "rgmii";
> +	clocks = <&gcc GCC_ETH_AXI_CLK>,
> +		<&gcc GCC_ETH_SLAVE_AHB_CLK>,
> +		<&gcc GCC_ETH_PTP_CLK>,
> +		<&gcc GCC_ETH_RGMII_CLK>;
> +	interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>,
> +			<GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
> +	interrupt-names = "macirq", "eth_lpi";
> +	snps,reset-gpio = <&tlmm 60 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,axi-config = <&stmmac_axi_setup>;
> +	snps,mtl-rx-config = <&mtl_rx_setup>;
> +	snps,mtl-tx-config = <&mtl_tx_setup>;
> +
> +	snps,txpbl = <8>;
> +	snps,rxpbl = <2>;
> +	snps,aal;
> +	snps,tso;
> +
> +	phy-handle = <&phy1>;
> +	phy-mode = "rgmii";
> +
> +	stmmac_axi_setup: stmmac-axi-config {
> +		snps,wr_osr_lmt = <15>;
> +		snps,rd_osr_lmt = <15>;
> +		snps,blen = <256 128 64 32 0 0 0>;
> +	};
> +
> +	mtl_rx_setup: rx-queues-config {
> +		snps,rx-queues-to-use = <4>;
> +		snps,rx-sched-sp;
> +		queue0 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x0>;
> +			snps,priority = <0x0>;
> +		};
> +		queue1 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x1>;
> +			snps,priority = <0x1>;
> +		};
> +		queue2 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x2>;
> +			snps,priority = <0x1>;
> +		};
> +		queue3 {
> +			snps,dcb-algorithm;
> +			snps,map-to-dma-channel = <0x3>;
> +			snps,priority = <0x1>;
> +		};
> +	};
> +
> +	mtl_tx_setup: tx-queues-config {
> +		snps,tx-queues-to-use = <4>;
> +		snps,tx-sched-wrr;
> +		queue0 {
> +			snps,weight = <0x10>;
> +			snps,dcb-algorithm;
> +			snps,priority = <0x0>;
> +		};
> +		queue1 {
> +			snps,avb-algorithm;
> +			snps,send_slope = <0x1000>;
> +			snps,idle_slope = <0x1000>;
> +			snps,high_credit = <0x3E800>;
> +			snps,low_credit = <0xFFC18000>;
> +			snps,priority = <0x1>;
> +		};
> +		queue2 {
> +			snps,avb-algorithm;
> +			snps,send_slope = <0x1000>;
> +			snps,idle_slope = <0x1000>;
> +			snps,high_credit = <0x3E800>;
> +			snps,low_credit = <0xFFC18000>;
> +			snps,priority = <0x1>;
> +		};
> +		queue3 {
> +			snps,avb-algorithm;
> +			snps,send_slope = <0x1000>;
> +			snps,idle_slope = <0x1000>;
> +			snps,high_credit = <0x3E800>;
> +			snps,low_credit = <0xFFC18000>;
> +			snps,priority = <0x1>;
> +		};
> +	};
> +
> +	mdio {
> +		#address-cells = <0x1>;
> +		#size-cells = <0x0>;
> +		compatible = "snps,dwmac-mdio";
> +		phy1: phy@4 {
> +			device_type = "ethernet-phy";
> +			reg = <0x4>;
> +		};
> +	};
> +
> +};
> -- 
> 2.20.1
>