diff --git a/cpu/efm32/Makefile.features b/cpu/efm32/Makefile.features
index 8ea9c65488..71e0b814c2 100644
--- a/cpu/efm32/Makefile.features
+++ b/cpu/efm32/Makefile.features
@@ -2,6 +2,7 @@ include $(RIOTCPU)/efm32/efm32-features.mk
 
 FEATURES_PROVIDED += periph_cpuid
 FEATURES_PROVIDED += periph_flashpage
+FEATURES_PROVIDED += periph_flashpage_raw
 
 FEATURES_CONFLICT += periph_rtc:periph_rtt
 FEATURES_CONFLICT_MSG += "On the EFM32, the RTC and RTT map to the same hardware peripheral."
diff --git a/cpu/efm32/include/cpu_conf.h b/cpu/efm32/include/cpu_conf.h
index 1c8d4748e9..61f2f967d5 100644
--- a/cpu/efm32/include/cpu_conf.h
+++ b/cpu/efm32/include/cpu_conf.h
@@ -45,6 +45,12 @@ extern "C" {
  */
 #define FLASHPAGE_SIZE                  (FLASH_PAGE_SIZE)
 #define FLASHPAGE_NUMOF                 (FLASH_SIZE / FLASH_PAGE_SIZE)
+/* The minimum block size which can be written is 4B. However, the erase
+ * block is always FLASHPAGE_SIZE.
+ */
+#define FLASHPAGE_RAW_BLOCKSIZE    (4U)
+/* Writing should be always 4 bytes aligned */
+#define FLASHPAGE_RAW_ALIGNMENT    (4U)
 /** @} */
 
 #ifdef __cplusplus
diff --git a/cpu/efm32/periph/flashpage.c b/cpu/efm32/periph/flashpage.c
index fdce123ded..ed3ac4590f 100644
--- a/cpu/efm32/periph/flashpage.c
+++ b/cpu/efm32/periph/flashpage.c
@@ -26,19 +26,41 @@
 
 #include "em_msc.h"
 
+void flashpage_write_raw(void *target_addr, const void *data, size_t len)
+{
+    /* assert multiples of FLASHPAGE_RAW_BLOCKSIZE are written and no less of
+       that length. */
+    assert(!(len % FLASHPAGE_RAW_BLOCKSIZE));
+
+    /* ensure writes are aligned */
+    assert(!(((unsigned)target_addr % FLASHPAGE_RAW_ALIGNMENT) ||
+            ((unsigned)data % FLASHPAGE_RAW_ALIGNMENT)));
+
+    /* ensure the length doesn't exceed the actual flash size */
+    assert(((unsigned)target_addr + len) <
+           (CPU_FLASH_BASE + (FLASHPAGE_SIZE * FLASHPAGE_NUMOF)) + 1);
+
+    uint32_t *page_addr = target_addr;
+    const uint32_t *data_addr = data;
+
+    MSC_Init();
+    MSC_WriteWord(page_addr, data_addr, len);
+    MSC_Deinit();
+}
+
 void flashpage_write(int page, const void *data)
 {
     assert(page < (int)FLASHPAGE_NUMOF);
 
     uint32_t *page_addr = (uint32_t *)flashpage_addr(page);
-    const uint32_t *data_addr = data;
 
+    /* erase given page */
     MSC_Init();
     MSC_ErasePage(page_addr);
-
-    if (data != NULL) {
-        MSC_WriteWord(page_addr, data_addr, FLASHPAGE_SIZE);
-    }
-
     MSC_Deinit();
+
+    /* write data to page */
+    if (data != NULL) {
+        flashpage_write_raw(page_addr, data, FLASHPAGE_SIZE);
+    }
 }