diff mbox series

[5/8] arm64: dts: qcom: sa8155p-adp: Enable ethernet node

Message ID 20220126221725.710167-6-bhupesh.sharma@linaro.org (mailing list archive)
State Not Applicable, archived
Headers show
Series Add ethernet support for Qualcomm SA8155p-ADP board | expand

Commit Message

Bhupesh Sharma Jan. 26, 2022, 10:17 p.m. UTC 
From: Vinod Koul <vkoul@kernel.org>

Enable the etheret node, add the phy node and pinctrl for ethernet.

Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
[bhsharma: Correct ethernet/rgmii related pinmuxs, specify multi-queues and
 plug in the PHY interrupt for WOL]
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
---
 arch/arm64/boot/dts/qcom/sa8155p-adp.dts | 144 +++++++++++++++++++++++
 1 file changed, 144 insertions(+)

Comments

Andrew Lunn Jan. 27, 2022, 12:07 a.m. UTC | #1 
> +&ethernet {
> +	status = "okay";
> +
> +	snps,reset-gpio = <&tlmm 79 GPIO_ACTIVE_LOW>;
> +	snps,reset-active-low;
> +	snps,reset-delays-us = <0 11000 70000>;
> +
> +	snps,ptp-ref-clk-rate = <250000000>;
> +	snps,ptp-req-clk-rate = <96000000>;
> +
> +	snps,mtl-rx-config = <&mtl_rx_setup>;
> +	snps,mtl-tx-config = <&mtl_tx_setup>;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&ethernet_defaults>;
> +
> +	phy-handle = <&rgmii_phy>;
> +	phy-mode = "rgmii";

Where are the rgmii delays being added for this board?

      Andrew
Bhupesh Sharma March 1, 2022, 8:33 p.m. UTC | #2 
Hi Andrew,

Sorry for the late reply.

On Thu, 27 Jan 2022 at 05:37, Andrew Lunn <andrew@lunn.ch> wrote:
>
> > +&ethernet {
> > +     status = "okay";
> > +
> > +     snps,reset-gpio = <&tlmm 79 GPIO_ACTIVE_LOW>;
> > +     snps,reset-active-low;
> > +     snps,reset-delays-us = <0 11000 70000>;
> > +
> > +     snps,ptp-ref-clk-rate = <250000000>;
> > +     snps,ptp-req-clk-rate = <96000000>;
> > +
> > +     snps,mtl-rx-config = <&mtl_rx_setup>;
> > +     snps,mtl-tx-config = <&mtl_tx_setup>;
> > +
> > +     pinctrl-names = "default";
> > +     pinctrl-0 = <&ethernet_defaults>;
> > +
> > +     phy-handle = <&rgmii_phy>;
> > +     phy-mode = "rgmii";
>
> Where are the rgmii delays being added for this board?

I am not sure if I am missing something, but I don't see any rgmii tx
or rx delay dts properties for the dwmac-qcom-ethqos driver (see [1]
and [2]).

I see that some stmmac drivers (for e.g.
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c), do define and use
dts properties that define the delays (for e.g.
'allwinner,tx-delay-ps'), but I cannot find something equivalent for
'dwmac-qcom-ethqos.c'.

[1]. Documentation/devicetree/bindings/net/qcom,ethqos.txt
[2]. Documentation/devicetree/bindings/net/snps,dwmac.yaml

Regards,
Bhupesh
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
index 8756c2b25c7e..474f688f14a2 100644
--- a/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
+++ b/arch/arm64/boot/dts/qcom/sa8155p-adp.dts
@@ -47,6 +47,65 @@  vreg_s4a_1p8: smps4 {
 
 		vin-supply = <&vreg_3p3>;
 	};
+
+	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,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_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,weight = <0x11>;
+			snps,dcb-algorithm;
+			snps,priority = <0x1>;
+		};
+
+		queue2 {
+			snps,weight = <0x12>;
+			snps,dcb-algorithm;
+			snps,priority = <0x2>;
+		};
+
+		queue3 {
+			snps,weight = <0x13>;
+			snps,dcb-algorithm;
+			snps,priority = <0x3>;
+		};
+	};
 };
 
 &apps_rsc {
@@ -317,6 +376,42 @@  &remoteproc_cdsp {
 	firmware-name = "qcom/sa8155p/cdsp.mdt";
 };
 
+&ethernet {
+	status = "okay";
+
+	snps,reset-gpio = <&tlmm 79 GPIO_ACTIVE_LOW>;
+	snps,reset-active-low;
+	snps,reset-delays-us = <0 11000 70000>;
+
+	snps,ptp-ref-clk-rate = <250000000>;
+	snps,ptp-req-clk-rate = <96000000>;
+
+	snps,mtl-rx-config = <&mtl_rx_setup>;
+	snps,mtl-tx-config = <&mtl_tx_setup>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&ethernet_defaults>;
+
+	phy-handle = <&rgmii_phy>;
+	phy-mode = "rgmii";
+	mdio {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		compatible = "snps,dwmac-mdio";
+
+		/* Micrel KSZ9031RNZ PHY */
+		rgmii_phy: phy@7 {
+			reg = <0x7>;
+
+			interrupt-parent = <&tlmm>;
+			interrupts-extended = <&tlmm 124 IRQ_TYPE_EDGE_FALLING>; /* phy intr */
+			device_type = "ethernet-phy";
+			compatible = "ethernet-phy-ieee802.3-c22";
+		};
+	};
+};
+
 &uart2 {
 	status = "okay";
 };
@@ -407,4 +502,53 @@  mux {
 			drive-strength = <2>;
 		};
 	};
+
+	ethernet_defaults: ethernet-defaults {
+		mdc {
+			pins = "gpio7";
+			function = "rgmii";
+			bias-pull-up;
+		};
+
+		mdio {
+			pins = "gpio59";
+			function = "rgmii";
+			bias-pull-up;
+		};
+
+		rgmii-rx {
+			pins = "gpio117", "gpio118", "gpio119", "gpio120", "gpio115", "gpio116";
+			function = "rgmii";
+			bias-disable;
+			drive-strength = <2>;
+		};
+
+		rgmii-tx {
+			pins = "gpio122", "gpio4", "gpio5", "gpio6", "gpio114", "gpio121";
+			function = "rgmii";
+			bias-pull-up;
+			drive-strength = <16>;
+		};
+
+		phy-intr {
+			pins = "gpio124";
+			function = "emac_phy";
+			bias-disable;
+			drive-strength = <8>;
+		};
+
+		pps {
+			pins = "gpio81";
+			function = "emac_pps";
+			bias-disable;
+			drive-strength = <8>;
+		};
+
+		phy-reset {
+			pins = "gpio79";
+			function = "gpio";
+			bias-pull-up;
+			drive-strength = <16>;
+		};
+	};
 };