It is the first time I trying to build Linux Embedded image with Buildroot. I have successfully build the image with custom user account and permission but I have some problems with DTS description. I need to configure UART4 (ConnectCore 6UL SBC Express) with flow control (RTS/CTS). These pins are already used by ENET1_PWR and USER_BUTTON.
How should I reassign them to CTS and RTS?
Where does ENET1_PWR be setted/cleared (any kernel file…)?
Thank you very much