cpu/riscv_common: model Kconfig

cpu/riscv_common/Kconfig

@@ -12,9 +12,11 @@ config CPU_ARCH_RISCV
     select HAS_NEWLIB
     select HAS_PERIPH_CORETIMER
     select HAS_PICOLIBC if '$(RIOT_CI_BUILD)' != '1'
-    select MODULE_MALLOC_THREAD_SAFE if TEST_KCONFIG
     select HAS_SSP
 
+    select MODULE_MALLOC_THREAD_SAFE if TEST_KCONFIG
+    imply MODULE_NEWLIB_NANO
+
 config CPU_CORE_RV32IMAC
     bool
     select CPU_ARCH_RISCV
@@ -28,3 +30,17 @@ config HAS_ARCH_RISCV
 
 config CPU_ARCH
     default "rv32" if CPU_CORE_RV32IMAC
+
+config MODULE_RISCV_COMMON
+    bool
+    default y
+    depends on TEST_KCONFIG && CPU_ARCH_RISCV
+    select MODULE_MALLOC_THREAD_SAFE
+    help
+        Common code for RISC-V architecture.
+
+rsource "periph/Kconfig"
+
+choice LIBC_IMPLEMENTATION
+    default MODULE_NEWLIB
+endchoice

cpu/riscv_common/periph/Kconfig

@@ -0,0 +1,35 @@
+# Copyright (c) 2021 HAW Hamburg
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+config MODULE_RISCV_COMMON_PERIPH
+    bool
+    default y
+    depends on TEST_KCONFIG && CPU_ARCH_RISCV
+    help
+        Common peripheral code for RISC-V architecture.
+
+if MODULE_RISCV_COMMON_PERIPH
+
+config MODULE_PERIPH_CLIC
+    bool
+    depends on HAS_PERIPH_CLIC
+    help
+        Core-Local interrupt controller driver.
+
+config MODULE_PERIPH_CORETIMER
+    bool
+    depends on HAS_PERIPH_CORETIMER
+    help
+        Low-level timer driver based on the Core-local Interrupt (CLINT)
+
+config MODULE_PERIPH_PLIC
+    bool
+    depends on HAS_PERIPH_PLIC
+    help
+        Platform-Level interrupt controller driver.
+
+endif # MODULE_RISCV_COMMON_PERIPH

makefiles/features_modules.inc.mk

@@ -15,6 +15,9 @@ ifneq (,$(filter periph_init, $(USEMODULE)))
     periph_init% \
     periph_common \
     periph_rtc_rtt \
+    periph_clic \
+    periph_coretimer \
+    periph_plic
     #
   PERIPH_MODULES := $(filter-out $(PERIPH_IGNORE_MODULES),\
                                  $(filter periph_%,$(USEMODULE)))