diff --git a/cpu/sam3/Makefile.features b/cpu/sam3/Makefile.features
new file mode 100644
index 0000000000..894817aedb
--- /dev/null
+++ b/cpu/sam3/Makefile.features
@@ -0,0 +1,4 @@
+FEATURES_PROVIDED += periph_cpuid
+FEATURES_PROVIDED += periph_hwrng
+
+-include $(RIOTCPU)/cortexm_common/Makefile.features