diff --git a/tests/cpu_efm32_features/Makefile b/tests/cpu_efm32_features/Makefile
index c67ba9c16a..af409343ee 100644
--- a/tests/cpu_efm32_features/Makefile
+++ b/tests/cpu_efm32_features/Makefile
@@ -11,7 +11,6 @@ BOARD_WHITELIST := ikea-tradfri \
                    stk3700
 
 # see cpu/efm32/efm32-features.mk for the supported flags
-EFM32_UART_MODES = 1
 EFM32_LEUART_ENABLED = 0
 
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/cpu_efm32_features/main.c b/tests/cpu_efm32_features/main.c
index 2851b1c4bc..efed804022 100644
--- a/tests/cpu_efm32_features/main.c
+++ b/tests/cpu_efm32_features/main.c
@@ -26,21 +26,7 @@
 
 int main(void)
 {
-    /* test if uart_config[i].mode is set to a know value */
-    for (unsigned i = 0; i < UART_NUMOF; i++) {
-        printf("UART %u mode: ", i);
-
-        switch (uart_config[i].mode) {
-            case UART_MODE_8N1:
-                puts("8N1");
-                break;
-            case UART_MODE_8E1:
-                puts("8E1");
-                break;
-            default:
-                puts("unknown");
-        }
-    }
+    puts("Board booted, with some EFM32 features enabled or disabled.");
 
     return 0;
 }