diff --git a/ports/stm32/boardctrl.h b/ports/stm32/boardctrl.h
index 05bade305c..6f79dfb890 100644
--- a/ports/stm32/boardctrl.h
+++ b/ports/stm32/boardctrl.h
@@ -28,6 +28,10 @@
 
 #include "py/mpconfig.h"
 
+#ifndef MICROPY_BOARD_EARLY_INIT
+#define MICROPY_BOARD_EARLY_INIT()
+#endif
+
 #ifndef MICROPY_BOARD_BEFORE_SOFT_RESET_LOOP
 #define MICROPY_BOARD_BEFORE_SOFT_RESET_LOOP boardctrl_before_soft_reset_loop
 #endif
diff --git a/ports/stm32/main.c b/ports/stm32/main.c
index c749cac978..db8222479b 100644
--- a/ports/stm32/main.c
+++ b/ports/stm32/main.c
@@ -385,10 +385,7 @@ void stm32_main(uint32_t reset_mode) {
     __HAL_RCC_D2SRAM3_CLK_ENABLE();
     #endif
 
-
-    #if defined(MICROPY_BOARD_EARLY_INIT)
     MICROPY_BOARD_EARLY_INIT();
-    #endif
 
     // basic sub-system init
     #if defined(STM32WB)