[PATCH V3 05/10] arm: dts: imx7d: Add Root Port node and PERST property
From: Sherry Sun <hidden>
Date: 2026-02-03 01:55:50
Also in:
imx, linux-arm-kernel, linux-pci, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Since describing the PCIe PERST# property under Host Bridge node is now deprecated, it is recommended to add it to the Root Port node, so creating the Root Port node and add the reset-gpios property in Root Port. Signed-off-by: Sherry Sun <redacted> --- arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts | 5 +++++ arch/arm/boot/dts/nxp/imx/imx7d.dtsi | 11 +++++++++++ 2 files changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts b/arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts
index a370e868cafe..0046b276b8b9 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx7d-sdb.dts@@ -456,10 +456,15 @@ display_out: endpoint { }; &pcie { + /* This property is deprecated, use reset-gpios from the Root Port node. */ reset-gpio = <&extended_io 1 GPIO_ACTIVE_LOW>; status = "okay"; }; +&pcie_port0 { + reset-gpios = <&extended_io 1 GPIO_ACTIVE_LOW>; +}; + ®_1p0d { vin-supply = <&sw2_reg>; };
diff --git a/arch/arm/boot/dts/nxp/imx/imx7d.dtsi b/arch/arm/boot/dts/nxp/imx/imx7d.dtsi
index d961c61a93af..3c5c1f2c1460 100644
--- a/arch/arm/boot/dts/nxp/imx/imx7d.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx7d.dtsi@@ -155,6 +155,17 @@ pcie: pcie@33800000 { reset-names = "pciephy", "apps", "turnoff"; fsl,imx7d-pcie-phy = <&pcie_phy>; status = "disabled"; + + pcie_port0: pcie@0 { + compatible = "pciclass,0604"; + device_type = "pci"; + reg = <0x0 0x0 0x0 0x0 0x0>; + bus-range = <0x01 0xff>; + + #address-cells = <3>; + #size-cells = <2>; + ranges; + }; }; }; };
--
2.37.1