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cpu/stm32: filter availability of RNG by CPU not by board.

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The old limitation is not valid anymore, we can evaluate $(CPU_MODEL)
here directly.

The output of

    make -C tests/periph_hwrng info-boards-supported | wc -w

remains the same.
This commit is contained in:
Benjamin Valentin 2020-05-29 17:37:05 +02:00
parent d0a5e0527b
commit 7c8f44a368
1 changed files with 5 additions and 16 deletions
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21
cpu/stm32/Makefile.features
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@ -23,23 +23,12 @@ ifeq (stm32f1,$(CPU_FAM))
FEATURES_CONFLICT_MSG += "On the STM32F1, the RTC and RTT map to the same hardware peripheral."
endif
# Not all F4 and L0 parts implement a RNG.
CPU_MODELS_WITHOUT_HWRNG = stm32f401re% stm32f411re% stm32f446re% stm32f446ze% stm32l031k6%
ifneq (,$(filter $(CPU_FAM),f2 f4 f7 l0 l4 wb))
FEATURES_PROVIDED += periph_hwrng
endif
# the granularity of provided feature definition for STMs is currently by CPU
# sub-family (e.g., stm32f[1234]). Unfortunately, only some of e.g., the
# stm32f4 have an RNG peripheral. As during evaluation of the features , no
# CPU variable is available, we need to filter by board.
#
BOARDS_WITHOUT_HWRNG += nucleo-f401re
BOARDS_WITHOUT_HWRNG += nucleo-f411re
BOARDS_WITHOUT_HWRNG += nucleo-f446re
BOARDS_WITHOUT_HWRNG += nucleo-f446ze
BOARDS_WITHOUT_HWRNG += nucleo-l031k6
ifneq (,$(filter $(BOARDS_WITHOUT_HWRNG),$(BOARD)))
FEATURES_PROVIDED := $(filter-out periph_hwrng,$(FEATURES_PROVIDED))
ifeq (,$(filter $(CPU_MODELS_WITHOUT_HWRNG),$(CPU_MODEL)))
FEATURES_PROVIDED += periph_hwrng
endif
endif
ifneq (,$(filter $(CPU_FAM),f2 f4 f7 l1 l4))