[PATCH v1 3/3] arm64: dts: qcom: x1e80100-qcp: Add power control and sideband signals for PCIe3
From: Wenbin Yao <hidden>
Date: 2025-03-20 05:55:27
Also in:
linux-arm-msm, linux-devicetree, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
From: Qiang Yu <redacted> Add perst, wake and clkreq sideband signals and required regulators in PCIe3 controller and PHY device tree node. Describe the voltage rails of the x8 PCI slots for PCIe3 port. Signed-off-by: Qiang Yu <redacted> Signed-off-by: Wenbin Yao <redacted> --- arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 119 ++++++++++++++++++++++ 1 file changed, 119 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index 28086a2bc..9cd313802 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts@@ -318,6 +318,48 @@ vreg_wcn_3p3: regulator-wcn-3p3 { regulator-boot-on; }; + vreg_pcie_12v: regulator-pcie_12v { + compatible = "regulator-fixed"; + + regulator-name = "VREG_PCIE_12V"; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + + gpio = <&pm8550ve_8_gpios 8 GPIO_ACTIVE_HIGH>; + enable-active-high; + + pinctrl-names = "default"; + pinctrl-0 = <&pcie_x8_12v>; + }; + + vreg_pcie_3v3_aux: regulator-pcie_3v3_aux { + compatible = "regulator-fixed"; + + regulator-name = "VREG_PCIE_3P3_AUX"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + gpio = <&pmc8380_3_gpios 8 GPIO_ACTIVE_HIGH>; + enable-active-high; + + pinctrl-names = "default"; + pinctrl-0 = <&pm_sde7_aux_3p3_en>; + }; + + vreg_pcie_3v3: regulator-pcie_3v3 { + compatible = "regulator-fixed"; + + regulator-name = "VREG_PCIE_3P3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + + gpio = <&pmc8380_3_gpios 6 GPIO_ACTIVE_HIGH>; + enable-active-high; + + pinctrl-names = "default"; + pinctrl-0 = <&pm_sde7_main_3p3_en>; +}; + usb-1-ss0-sbu-mux { compatible = "onnn,fsusb42", "gpio-sbu-mux";
@@ -907,6 +949,60 @@ &mdss_dp3_phy { status = "okay"; }; +&pm8550ve_8_gpios { + pcie_x8_12v: pcie-12v-default-state { + pins = "gpio8"; + function = "normal"; + output-enable; + output-high; + bias-pull-down; + power-source = <0>; + }; +}; + +&pmc8380_3_gpios { + pm_sde7_aux_3p3_en: pcie-aux-3p3-default-state { + pins = "gpio8"; + function = "normal"; + output-enable; + output-high; + bias-pull-down; + power-source = <0>; + }; + + pm_sde7_main_3p3_en: pcie-main-3p3-default-state { + pins = "gpio6"; + function = "normal"; + output-enable; + output-high; + bias-pull-down; + power-source = <0>; + }; +}; + +&pcie3 { + + pinctrl-names = "default"; + pinctrl-0 = <&pcie3_default>; + perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>; + wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>; + status = "okay"; +}; + +&pcie3_phy { + vdda-phy-supply = <&vreg_l3j_0p8>; + vdda-pll-supply = <&vreg_l3e_1p2>; + vdda-qref-supply = <&vreg_l3c_0p8>; + + status = "okay"; +}; + +&pcie3port { + vpcie12v-supply = <&vreg_pcie_12v>; + vpcie3v3-supply = <&vreg_pcie_3v3>; + vpcie3v3aux-supply = <&vreg_pcie_3v3_aux>; +}; + &pcie4 { perst-gpios = <&tlmm 146 GPIO_ACTIVE_LOW>; wake-gpios = <&tlmm 148 GPIO_ACTIVE_LOW>;
@@ -1118,6 +1214,29 @@ nvme_reg_en: nvme-reg-en-state { bias-disable; }; + pcie3_default: pcie3-default-state { + clkreq-n-pins { + pins = "gpio144"; + function = "pcie3_clk"; + drive-strength = <2>; + bias-pull-up; + }; + + perst-n-pins { + pins = "gpio143"; + function = "gpio"; + drive-strength = <2>; + bias-pull-down; + }; + + wake-n-pins { + pins = "gpio145"; + function = "gpio"; + drive-strength = <2>; + bias-pull-up; + }; + }; + pcie4_default: pcie4-default-state { clkreq-n-pins { pins = "gpio147";
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2.34.1