ORIN NX 16G（jetpack 5.1.1） tegra194-pcie 140c0000.pcie: Phy link never came up

While using PCIe C9, the following error occurred. Can you tell me the reason?
0125-com30.log (113.5 KB)

I did some things to configure the PCIe’s C9.

Step one：

modify the file p3767.conf.common

ODMDATA=“gbe-uphy-config-9,hsstp-lane-map-3,hsio-uphy-config-0”;

Step two：

add to device-tree

pcie@141e0000 { /* C7x1 node */

status = “okay”;

phys = <&p2u_gbe_0>;

phy-names = “p2u-0”;

};

pcie@140c0000 { /* C9x1 */

status = “okay”;

phys = <&p2u_gbe_1>;

phy-names = “p2u-0”;

};

cat ./pcie@140c0000/status

the value is okay, so I believe the device tree modification has taken effect.

step three:

20240125150042822×161 60.2 KB

I have modified the four pins related to PEX9 and generated three device tree files.replace it with the following document.

tegra234-mb1-bct-pinmux-p3767-hdmi-a03.dtsi

tegra234-mb1-bct-padvoltage-p3767-hdmi-a03.dtsi

step four:

After the overall compilation, replace the generated arch//dts/nvid replace the generated arch/arm64/boot/dts/nvidia/* with Linux_for_Tegra/kernel/dtb/*