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charset="utf-8" Disable PCIe bus in the default dts to avoid the shared regulatory between SDIO and PCIe buses, the random probe order between the two buses may break the PCIe initialization sequence which cause PCIe devices has probability of failing to detect. Enable the SDIO WiFi in the default imx8mp-evk.dts, and add a separate imx8mp-evk-pcie.dtso to enable PCIe bus. Signed-off-by: Sherry Sun --- arch/arm64/boot/dts/freescale/Makefile | 4 +++- .../boot/dts/freescale/imx8mp-evk-pcie.dtso | 19 +++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 4 ++-- 3 files changed, 24 insertions(+), 3 deletions(-) create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-evk-pcie.dtso diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/f= reescale/Makefile index c42ca3f77b07..c4e790a268ae 100644 --- a/arch/arm64/boot/dts/freescale/Makefile +++ b/arch/arm64/boot/dts/freescale/Makefile @@ -333,12 +333,14 @@ imx8mp-evk-lvds0-imx-lvds-hdmi-dtbs +=3D imx8mp-evk.d= tb imx8mp-evk-lvds0-imx-lvds- imx8mp-evk-lvds1-imx-dlvds-hdmi-channel0-dtbs +=3D imx8mp-evk.dtb imx8mp-e= vk-lvds1-imx-dlvds-hdmi-channel0.dtbo imx8mp-evk-lvds1-imx-lvds-hdmi-dtbs +=3D imx8mp-evk.dtb imx8mp-evk-lvds1-i= mx-lvds-hdmi.dtbo imx8mp-evk-mx8-dlvds-lcd1-dtbs +=3D imx8mp-evk.dtb imx8mp-evk-mx8-dlvds-lc= d1.dtbo -imx8mp-evk-pcie-ep-dtbs +=3D imx8mp-evk.dtb imx-pcie0-ep.dtbo +imx8mp-evk-pcie-dtbs :=3D imx8mp-evk.dtb imx8mp-evk-pcie.dtbo +imx8mp-evk-pcie-ep-dtbs +=3D imx8mp-evk-pcie.dtb imx-pcie0-ep.dtbo dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-lvds0-imx-dlvds-hdmi-channel0.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-lvds0-imx-lvds-hdmi.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-lvds1-imx-dlvds-hdmi-channel0.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-lvds1-imx-lvds-hdmi.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-mx8-dlvds-lcd1.dtb +dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-pcie.dtb dtb-$(CONFIG_ARCH_MXC) +=3D imx8mp-evk-pcie-ep.dtb =20 imx8mp-tqma8mpql-mba8mpxl-lvds-tm070jvhg33-dtbs +=3D imx8mp-tqma8mpql-mba8= mpxl.dtb imx8mp-tqma8mpql-mba8mpxl-lvds-tm070jvhg33.dtbo diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie.dtso b/arch/arm6= 4/boot/dts/freescale/imx8mp-evk-pcie.dtso new file mode 100644 index 000000000000..4f6546d442bf --- /dev/null +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk-pcie.dtso @@ -0,0 +1,19 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2026 NXP + */ + +/dts-v1/; +/plugin/; + +&pcie_phy { + status =3D "okay"; +}; + +&pcie0 { + status =3D "okay"; +}; + +&usdhc1 { + status =3D "disabled"; +}; diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index aedc09937716..f09335e6388d 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -763,7 +763,7 @@ &pcie_phy { fsl,refclk-pad-mode =3D ; clocks =3D <&pcie0_refclk>; clock-names =3D "ref"; - status =3D "okay"; + status =3D "disabled"; }; =20 &pcie0 { @@ -773,7 +773,7 @@ &pcie0 { vpcie-supply =3D <®_pcie0>; vpcie3v3aux-supply =3D <®_pcie0>; supports-clkreq; - status =3D "okay"; + status =3D "disabled"; }; =20 &pcie0_ep { --=20 2.37.1