DWM1001C SPI Master enable

Hi I wanted to ask how to configure the nrf52832 to enable SPI master on GPIO 14, 22, 31 and 30. It seems possible according to the nrf52832 documentation. However checking the dwm-simple example, there is only a “dwm_serial_spi_compile call”. I can not find the reference to this function. It would be great to get some pointers, advice, etc.