[PATCH V14 06/12] arm: dts: imx6sx: Add Root Port node and PERST property
From: Sherry Sun <hidden>
Date: 2026-04-22 09:34:48
Also in:
imx, linux-devicetree, 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/imx6sx-sdb.dtsi | 5 +++++ arch/arm/boot/dts/nxp/imx/imx6sx.dtsi | 11 +++++++++++ 2 files changed, 16 insertions(+)
diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi b/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi
index 3e238d8118fa..338de4d144b2 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6sx-sdb.dtsi@@ -282,11 +282,16 @@ codec: wm8962@1a { &pcie { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie>; + /* This property is deprecated, use reset-gpios from the Root Port node. */ reset-gpio = <&gpio2 0 GPIO_ACTIVE_LOW>; vpcie-supply = <®_pcie_gpio>; status = "okay"; }; +&pcie_port0 { + reset-gpios = <&gpio2 0 GPIO_ACTIVE_LOW>; +}; + &lcdif1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_lcd>;
diff --git a/arch/arm/boot/dts/nxp/imx/imx6sx.dtsi b/arch/arm/boot/dts/nxp/imx/imx6sx.dtsi
index aefae5a3a6be..5484c398aa37 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6sx.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6sx.dtsi@@ -1470,6 +1470,17 @@ pcie: pcie@8ffc000 { power-domains = <&pd_disp>, <&pd_pci>; power-domain-names = "pcie", "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