BeagleBone UART 2,3,4,5 mux

Hi, I need some help to use another UART's than UART1
For UART1 using this script
it get sucessfully configurated on muxing mode 0

But for the other UARTS it's not possible to configure, in sys/
kernel/debug/omap_mux/ only has uart1 for configuration on mode 0
Any help to get this uart's working is welcome