RIOT/cpu/saml21/Makefile.features

# The SAMR30 line of MCUs does not contain a TRNG
BOARDS_WITHOUT_HWRNG += samr30-xpro

ifeq (,$(filter $(BOARDS_WITHOUT_HWRNG),$(BOARD)))
  FEATURES_PROVIDED += periph_hwrng
endif

include $(RIOTCPU)/sam0_common/Makefile.features
cpu/sam0_common: add hwrng driver 2019-04-25 18:15:44 +02:00			`# The SAMR30 line of MCUs does not contain a TRNG`
			`BOARDS_WITHOUT_HWRNG += samr30-xpro`

			`ifeq (,$(filter $(BOARDS_WITHOUT_HWRNG),$(BOARD)))`
			`FEATURES_PROVIDED += periph_hwrng`
			`endif`

cpu: saml21: don't silently ignore missing makefile -include will throw no error if sam0_common/Makefile.features does not exist. This may not have been intentional as none of the other sam0 implementations do this. Replace it with a normal include. 2019-06-25 15:53:49 +02:00			`include $(RIOTCPU)/sam0_common/Makefile.features`