Trigger Spektrum Bind for none IOMCU board

Since there is no IOMCU and SPI for AP_Radio, is there a way for boards like Kakute to trigger spektrum binding?

bool RCInput::rc_bind(int dsmMode)
{
#if HAL_WITH_IO_MCU
    rcin_mutex.take(HAL_SEMAPHORE_BLOCK_FOREVER);
    if (AP_BoardConfig::io_enabled()) {
        iomcu.bind_dsm(dsmMode);
    }
    rcin_mutex.give();
#endif

#if HAL_USE_ICU == TRUE
    // ask AP_RCProtocol to start a bind
    rcin_prot.start_bind();
#endif

#if HAL_RCINPUT_WITH_AP_RADIO
    if (radio) {
        radio->start_recv_bind();
    }
#endif
    return true;
}