arm64: dts: qcom: lemans-evk: Enable 2.5G Ethernet interface

Enable the QCA8081 2.5G Ethernet PHY on port 0. Add MDC and MDIO pin
functions for ethernet0, and enable the internal SGMII/SerDes PHY node.
Additionally, support fetching the MAC address from EEPROM via an nvmem
cell.

Signed-off-by: Mohd Ayaan Anwar <quic_mohdayaa@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Wasim Nazir <wasim.nazir@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250916-lemans-evk-bu-v5-10-53d7d206669d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 0170da9362ae27cc0584455c1e8caa4f226d77c4..d5dbcbd86171910adb5258073694d476ed66be5d 100644 (file)
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -17,6 +17,7 @@
        compatible = "qcom,lemans-evk", "qcom,qcs9100", "qcom,sa8775p";
 
        aliases {
+               ethernet0 = &ethernet0;
                mmc1 = &sdhc;
                serial0 = &uart10;
        };
@@ -352,6 +353,94 @@
        };
 };
 
+&ethernet0 {
+       phy-handle = <&hsgmii_phy0>;
+       phy-mode = "2500base-x";
+
+       pinctrl-0 = <&ethernet0_default>;
+       pinctrl-names = "default";
+
+       snps,mtl-rx-config = <&mtl_rx_setup>;
+       snps,mtl-tx-config = <&mtl_tx_setup>;
+
+       nvmem-cells = <&mac_addr0>;
+       nvmem-cell-names = "mac-address";
+
+       status = "okay";
+
+       mdio {
+               compatible = "snps,dwmac-mdio";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               hsgmii_phy0: ethernet-phy@1c {
+                       compatible = "ethernet-phy-id004d.d101";
+                       reg = <0x1c>;
+                       reset-gpios = <&pmm8654au_2_gpios 8 GPIO_ACTIVE_LOW>;
+                       reset-assert-us = <11000>;
+                       reset-deassert-us = <70000>;
+               };
+       };
+
+       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>;
+
+               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>;
+               };
+       };
+};
+
 &gpi_dma0 {
        status = "okay";
 };
@@ -404,6 +493,10 @@
                        compatible = "fixed-layout";
                        #address-cells = <1>;
                        #size-cells = <1>;
+
+                       mac_addr0: mac-addr@0 {
+                               reg = <0x0 0x6>;
+                       };
                };
        };
 };
@@ -552,11 +645,33 @@
        status = "okay";
 };
 
+&serdes0 {
+       phy-supply = <&vreg_l5a>;
+
+       status = "okay";
+};
+
 &sleep_clk {
        clock-frequency = <32768>;
 };
 
 &tlmm {
+       ethernet0_default: ethernet0-default-state {
+               ethernet0_mdc: ethernet0-mdc-pins {
+                       pins = "gpio8";
+                       function = "emac0_mdc";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+
+               ethernet0_mdio: ethernet0-mdio-pins {
+                       pins = "gpio9";
+                       function = "emac0_mdio";
+                       drive-strength = <16>;
+                       bias-pull-up;
+               };
+       };
+
        pcie0_default_state: pcie0-default-state {
                clkreq-pins {
                        pins = "gpio1";