ifneq (,$(filter periph_rtc,$(USEMODULE)))
  USEMODULE += periph_rtc_series$(EFM32_SERIES)
endif

ifneq (,$(filter periph_rtt,$(USEMODULE)))
  USEMODULE += periph_rtt_series$(EFM32_SERIES)
endif

# include Gecko SDK package
USEPKG += gecko_sdk

# include layered power management
USEMODULE += pm_layered