PCIe Link in IMX8DXL

ankita_hegde — Fri, 04 Apr 2025 05:17:13 GMT

Dear Team,

We are using an iMX8DXL processor and Linux 5.4.24 BSP. We are not able to detect the PCIe link in the board. We have configured it as below:

&pcieb {
compatible = "fsl,imx8qxp-pcie","snps,dw-pcie";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pcieb>;
clkreq-gpio = <&lsio_gpio4 1 GPIO_ACTIVE_HIGH>;
reset-gpio = <&lsio_gpio4 0 GPIO_ACTIVE_LOW>;
ext_osc = <0>;
epdev_on-supply = <&reg_3p3v>;
aspm-quirks = <1>;
aspm-enable;
status = "okay";
};

pinctrl:

pinctrl_pcieb: pcieagrp{
fsl,pins = <
IMX8DXL_PCIE_CTRL0_PERST_B_LSIO_GPIO4_IO00 0x06000021
IMX8DXL_PCIE_CTRL0_CLKREQ_B_LSIO_GPIO4_IO01 0x26000020
IMX8DXL_PCIE_CTRL0_WAKE_B_LSIO_GPIO4_IO02 0x06000021
>;
};

Do let us know if you have any suggestions that we can try to resolve this issue.

Regards,

Ankita

Re: PCIe Link in IMX8DXL

AldoG — Mon, 07 Apr 2025 22:16:18 GMT

Hello,

Could you share any logs regarding PCIe?
I believe that you are using a custom board and not an NXP one, correct?
Please share the output of dmesg | grep pcie
Also, could you share what are you trying to connect?

Best regards/Saludos,
Aldo.

topic PCIe Link in IMX8DXL in i.MX Processors

PCIe Link in IMX8DXL

Re: PCIe Link in IMX8DXL