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Message-Id: <20240530-x1e80100-dts-pcie6a-v1-3-ee17a9939ba5@linaro.org>
Date: Thu, 30 May 2024 18:43:41 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Sibi Sankar <quic_sibis@...cinc.com>,
Rajendra Nayak <quic_rjendra@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>
Subject: [PATCH 3/3] arm64: dts: qcom: x1e80100: Describe the PCIe 6a
resources
On both the CRD and QCP, on PCIe 6a sits the NVMe. Add the 3.3V
gpio-controlled regulator and the clkreq, perst and wake gpios as
resources for the PCIe 6a.
Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 52 +++++++++++++++++++++++++++++++
arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 52 +++++++++++++++++++++++++++++++
2 files changed, 104 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
index 3ce2c8a841ec..10ec40a193fb 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
@@ -173,6 +173,20 @@ vreg_edp_3p3: regulator-edp-3p3 {
regulator-always-on;
regulator-boot-on;
};
+
+ vreg_nvme: regulator-nvme {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VREG_NVME_3P3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&nvme_reg_en>;
+ };
};
&apps_rsc {
@@ -655,6 +669,14 @@ &pcie4_phy {
};
&pcie6a {
+ perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
+ wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
+
+ vddpe-3v3-supply = <&vreg_nvme>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie6a_default>;
+
status = "okay";
};
@@ -804,6 +826,36 @@ kybd_default: kybd-default-state {
bias-disable;
};
+ nvme_reg_en: nvme-reg-en-state {
+ pins = "gpio18";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ pcie6a_default: pcie2a-default-state {
+ clkreq-n-pins {
+ pins = "gpio153";
+ function = "pcie6a_clk";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ perst-n-pins {
+ pins = "gpio152";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ wake-n-pins {
+ pins = "gpio154";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
+
tpad_default: tpad-default-state {
pins = "gpio3";
function = "gpio";
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index e1b19177523f..ab02a6e35eb6 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
@@ -59,6 +59,20 @@ vreg_edp_3p3: regulator-edp-3p3 {
regulator-always-on;
regulator-boot-on;
};
+
+ vreg_nvme: regulator-nvme {
+ compatible = "regulator-fixed";
+
+ regulator-name = "VREG_NVME_3P3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+
+ gpio = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&nvme_reg_en>;
+ };
};
&apps_rsc {
@@ -466,6 +480,14 @@ &pcie4_phy {
};
&pcie6a {
+ perst-gpios = <&tlmm 152 GPIO_ACTIVE_LOW>;
+ wake-gpios = <&tlmm 154 GPIO_ACTIVE_LOW>;
+
+ vddpe-3v3-supply = <&vreg_nvme>;
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pcie6a_default>;
+
status = "okay";
};
@@ -528,6 +550,36 @@ edp_reg_en: edp-reg-en-state {
drive-strength = <16>;
bias-disable;
};
+
+ nvme_reg_en: nvme-reg-en-state {
+ pins = "gpio18";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-disable;
+ };
+
+ pcie6a_default: pcie2a-default-state {
+ clkreq-n-pins {
+ pins = "gpio153";
+ function = "pcie6a_clk";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+
+ perst-n-pins {
+ pins = "gpio152";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-down;
+ };
+
+ wake-n-pins {
+ pins = "gpio154";
+ function = "gpio";
+ drive-strength = <2>;
+ bias-pull-up;
+ };
+ };
};
&uart21 {
--
2.34.1
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