WORKAROUND: arm64: dts: qcom: rb3gen2: add a temporary overlay

Add an overlay devicetree for Rb3Gen2 for temporary enablement of the
QPS615 PCIE switch's 10GbE and 2.5Gbe ethernet ports.

Signed-off-by: Mohd Ayaan Anwar <mohd.anwar@oss.qualcomm.com>

Author: ayaan-anwar

arch/arm64/boot/dts/qcom/Makefile

@@ -141,6 +141,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= qcs404-evb-4000.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs615-ride.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-radxa-dragon-q6a.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-rb3gen2.dtb
+dtb-$(CONFIG_ARCH_QCOM)	+= qcs6490-rb3gen2-staging.dtbo
 
 qcs6490-rb3gen2-vision-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-vision-mezzanine.dtbo
 qcs6490-rb3gen2-industrial-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-industrial-mezzanine.dtbo

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2-staging.dtso

@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	qep_vreg: qep_vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "qep_vreg";
+		gpio = <&pm7325_gpios 8 0>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		enable-active-high;
+	};
+
+	aqr_vreg: aqr_vreg {
+		compatible = "regulator-fixed";
+		regulator-name = "aqr_vreg";
+		gpio = <&pm7250b_gpios 4 0>;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		enable-active-high;
+	};
+};
+
+&pcie1_port0 {
+	pcie@0,0 {
+		pcie@3,0 {
+			/*
+			 * PF0: also acts as the QPS615 GPIO controller.
+			 * gpio-controller / #gpio-cells expose the TC956X
+			 * internal GPIO lines (hardware numbers 0-13) so that
+			 * phy-reset-gpios can reference them.
+			 */
+			qps615: pci@0,0 {
+				interrupts-extended = <&tlmm 141 IRQ_TYPE_EDGE_FALLING>;
+				interrupt-names = "wol_irq";
+				phy-supply = <&aqr_vreg>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&aqr_intn_wol_sig>;
+				phy-reset-gpios = <&qps615 0 GPIO_ACTIVE_LOW>;
+				reset-deassert-us = <221000>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+			};
+
+			pci@0,1 {
+				interrupts-extended = <&tlmm 101 IRQ_TYPE_EDGE_FALLING>;
+				interrupt-names = "wol_irq";
+				phy-supply = <&qep_vreg>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&napa_intn_wol_sig>;
+				phy-reset-gpios = <&qps615 1 GPIO_ACTIVE_LOW>;
+				reset-deassert-us = <20000>;
+			};
+		};
+	};
+};
+
+&tlmm {
+	qps615_intn_wol {
+		aqr_intn_wol_sig: aqr_intn_wol_sig {
+			mux {
+				pins = "gpio141";
+				function = "gpio";
+			};
+
+			config {
+				pins = "gpio141";
+				input-enable;
+				bias-disable;
+			};
+		};
+
+		napa_intn_wol_sig: napa_intn_wol_sig {
+			mux {
+				pins = "gpio101";
+				function = "gpio";
+			};
+
+			config {
+				pins = "gpio101";
+				input-enable;
+				bias-disable;
+			};
+		};
+	};
+};
+