How to modify the pinmux reuse in Orin nano board, compile it into an image and burn it into the Orin nano development board?

[WayneWWW]

如果你知道device tree怎麼運作, 那你貼的那篇其實就已經教你怎麼開C7/C9了

Orin NX 8GB C9 can not get PCIe #C7/#C9

We have add “num-lanes” to dts pcie@141e0000 { /* * C7 x1 */ status = "okay"; phys = <&p2u_gbe_0>; phy-names = "p2u-0"; num-lanes = <0x01>; }; pcie@140c0000 { /* * C9 x1 */ status = "okay"; phys = <&p2u_gbe_1>; phy-names = "p2u-0"; num-lanes = <0x01>; }; but sudo dtc -I fs -O dts -o extracted.dts /proc/device-tree and “num-lanes” not changed. extracted.dts (428.1 KB) We get UPHY config correct or not ? nvidia@nvidia-desktop:~$ sudo cat /sys/kernel/debug/b…