linux-kernel - [PATCH v9 3/4] arm64: dts: qcom: sc7280: Add PCIe nodes for IDP board

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Message-Id: <1632837350-12100-4-git-send-email-pmaliset@codeaurora.org>
Date:   Tue, 28 Sep 2021 19:25:49 +0530
From:   Prasad Malisetty <pmaliset@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, bhelgaas@...gle.com,
        robh+dt@...nel.org, swboyd@...omium.org, lorenzo.pieralisi@....com,
        svarbanov@...sol.com
Cc:     devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        dianders@...omium.org, mka@...omium.org, vbadigan@...eaurora.org,
        sallenki@...eaurora.org, manivannan.sadhasivam@...aro.org,
        Prasad Malisetty <pmaliset@...eaurora.org>
Subject: [PATCH v9 3/4] arm64: dts: qcom: sc7280: Add PCIe nodes for IDP board

Enable PCIe controller and PHY for sc7280 IDP board.
Add specific NVMe GPIO entries for SKU1 and SKU2 support.

Signed-off-by: Prasad Malisetty <pmaliset@...eaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7280-idp.dts  |  9 ++++++
 arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 54 ++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/sc7280-idp2.dts |  9 ++++++
 3 files changed, 72 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dts b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
index 64fc22a..1562386 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dts
@@ -61,6 +61,15 @@
 	modem-init;
 };
 
+&nvme_pwren_pin {
+	pins = "gpio19";
+};
+
+&nvme_3v3_regulators {
+	gpio = <&tlmm 19 GPIO_ACTIVE_HIGH>;
+	enable-active-high;
+};
+
 &pmk8350_vadc {
 	pmr735a_die_temp {
 		reg = <PMR735A_ADC7_DIE_TEMP>;
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
index def22ff..5b5505f 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp.dtsi
@@ -31,6 +31,17 @@
 			linux,can-disable;
 		};
 	};
+
+	nvme_3v3_regulators: nvme-3v3-regulators {
+		compatible = "regulator-fixed";
+		regulator-name = "VLDO_3V3";
+
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&nvme_pwren_pin>;
+	};
 };
 
 &apps_rsc {
@@ -220,6 +231,42 @@
 	modem-init;
 };
 
+&pcie1 {
+	status = "okay";
+	perst-gpio = <&tlmm 2 GPIO_ACTIVE_LOW>;
+
+	vddpe-3v3-supply = <&nvme_3v3_regulators>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_default_state>;
+};
+
+&pcie1_phy {
+	status = "okay";
+
+	vdda-phy-supply = <&vreg_l10c_0p8>;
+	vdda-pll-supply = <&vreg_l6b_1p2>;
+};
+
+&pcie1_default_state {
+	reset-n {
+		pins = "gpio2";
+		function = "gpio";
+
+		drive-strength = <16>;
+		output-low;
+		bias-disable;
+	};
+
+	wake-n {
+		pins = "gpio3";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};
+
 &pmk8350_vadc {
 	pmk8350_die_temp {
 		reg = <PMK8350_ADC7_DIE_TEMP>;
@@ -489,3 +536,10 @@
 		bias-pull-up;
 	};
 };
+
+&tlmm {
+	nvme_pwren_pin: nvme-pwren-pin {
+		function = "gpio";
+		bias-pull-up;
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/sc7280-idp2.dts b/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
index 1fc2add..0548cb6 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
+++ b/arch/arm64/boot/dts/qcom/sc7280-idp2.dts
@@ -21,3 +21,12 @@
 		stdout-path = "serial0:115200n8";
 	};
 };
+
+&nvme_pwren_pin {
+	pins = "gpio51";
+};
+
+&nvme_3v3_regulators {
+	gpio = <&tlmm 51 GPIO_ACTIVE_HIGH>;
+	enable-active-high;
+};
-- 
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