Use USB 2port on TX2 r28.2.1

Hello,

I am trying to increase the number of USB ports to 2 on the carrier board.
I am trying to use the second port by changing the PIN assignment below, but in the source code, which assignment should I change?

<P2597_B04_Concept_schematics.pdf>
befor after
PEX_RX3_P -> USB_SS1_RX_P
PEX_RX3_N -> USB_SS1_RX_N
PEX_TX3_P -> USB_SS1_TX_P
PEX_TX3_N -> USB_SS1_TX_N

I confirmed the following Forum, but I am in trouble.
https://devtalk.nvidia.com/default/topic/1046417/jetson-tx2/usb-lane-mapping-for-config-4-on-tx2-r28-2/post/5323886/#5323886

Hi,

Please refer to example of config#3. #3 and #4 only differs in one lane(pcie -> usb).
https://elinux.org/Jetson/TX2_USB