linux-kernel - [PATCH v6 6/6] arm64: dts: qcom: ipq5018: Enable PCIe

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Message-Id: <20250321-ipq5018-pcie-v6-6-b7d659a76205@outlook.com>
Date: Fri, 21 Mar 2025 16:14:44 +0400
From: George Moussalem via B4 Relay <devnull+george.moussalem.outlook.com@...nel.org>
To: Vinod Koul <vkoul@...nel.org>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Nitheesh Sekar <quic_nsekar@...cinc.com>, 
 Varadarajan Narayanan <quic_varada@...cinc.com>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-pci@...r.kernel.org, George Moussalem <george.moussalem@...look.com>, 
 20250317100029.881286-2-quic_varada@...cinc.com, 
 Sricharan Ramabadhran <quic_srichara@...cinc.com>
Subject: [PATCH v6 6/6] arm64: dts: qcom: ipq5018: Enable PCIe

From: Nitheesh Sekar <quic_nsekar@...cinc.com>

Enable the PCIe controller and PHY nodes for RDP 432-c2.

Signed-off-by: Nitheesh Sekar <quic_nsekar@...cinc.com>
Signed-off-by: Sricharan Ramabadhran <quic_srichara@...cinc.com>
Signed-off-by: George Moussalem <george.moussalem@...look.com>
---
 arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts
index 8460b538eb6a..43def95e9275 100644
--- a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts
+++ b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts
@@ -9,6 +9,8 @@
 
 #include "ipq5018.dtsi"
 
+#include <dt-bindings/gpio/gpio.h>
+
 / {
 	model = "Qualcomm Technologies, Inc. IPQ5018/AP-RDP432.1-C2";
 	compatible = "qcom,ipq5018-rdp432-c2", "qcom,ipq5018";
@@ -28,6 +30,20 @@ &blsp1_uart1 {
 	status = "okay";
 };
 
+&pcie0 {
+	pinctrl-0 = <&pcie0_default>;
+	pinctrl-names = "default";
+
+	perst-gpios = <&tlmm 15 GPIO_ACTIVE_LOW>;
+	wake-gpios = <&tlmm 16 GPIO_ACTIVE_LOW>;
+
+	status = "okay";
+};
+
+&pcie0_phy {
+	status = "okay";
+};
+
 &sdhc_1 {
 	pinctrl-0 = <&sdc_default_state>;
 	pinctrl-names = "default";
@@ -43,6 +59,30 @@ &sleep_clk {
 };
 
 &tlmm {
+	pcie0_default: pcie0-default-state {
+		clkreq-n-pins {
+			pins = "gpio14";
+			function = "pcie0_clk";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+
+		perst-n-pins {
+			pins = "gpio15";
+			function = "gpio";
+			drive-strength = <8>;
+			bias-pull-up;
+			output-low;
+		};
+
+		wake-n-pins {
+			pins = "gpio16";
+			function = "pcie0_wake";
+			drive-strength = <8>;
+			bias-pull-up;
+		};
+	};
+
 	sdc_default_state: sdc-default-state {
 		clk-pins {
 			pins = "gpio9";

-- 
2.48.1