diff --git a/src/portable/renesas/rusb2/dcd_rusb2.c b/src/portable/renesas/rusb2/dcd_rusb2.c
index 83f0fdc4a..0380f36b9 100644
--- a/src/portable/renesas/rusb2/dcd_rusb2.c
+++ b/src/portable/renesas/rusb2/dcd_rusb2.c
@@ -49,17 +49,16 @@
     #define D0FIFOCTR CFIFOCTR
     #define D0FIFOCTR_b CFIFOCTR_b
   #endif
+
+  // Application API for setting IRQ number
+  void tud_int_set_irqnum(uint8_t rhport, int32_t irqnum) {
+    rusb2_controller[rhport].irqnum = irqnum;
+  }
+
 #else
   #error "Unsupported MCU"
 #endif
 
-//--------------------------------------------------------------------+
-// Application API for setting IRQ number
-//--------------------------------------------------------------------+
-void tud_int_set_irqnum(uint8_t rhport, int32_t irqnum) {
-  rusb2_controller[rhport].irqnum = irqnum;
-}
-
 //--------------------------------------------------------------------+
 // MACRO TYPEDEF CONSTANT ENUM
 //--------------------------------------------------------------------+
diff --git a/src/portable/renesas/rusb2/rusb2_ra.h b/src/portable/renesas/rusb2/rusb2_ra.h
index 8a4d2ad36..7ff272bbc 100644
--- a/src/portable/renesas/rusb2/rusb2_ra.h
+++ b/src/portable/renesas/rusb2/rusb2_ra.h
@@ -64,8 +64,14 @@ typedef struct {
 #if defined(BSP_MCU_GROUP_RA6M5) || defined(BSP_MCU_GROUP_RA6M3) || (BSP_CFG_MCU_PART_SERIES == 8)
   #define RUSB2_SUPPORT_HIGHSPEED
   #define RUSB2_CONTROLLER_COUNT 2
+
+  #define rusb2_is_highspeed_rhport(_p)  (_p == 1)
+  #define rusb2_is_highspeed_reg(_reg)   (_reg == RUSB2_REG(1))
 #else
   #define RUSB2_CONTROLLER_COUNT 1
+
+  #define rusb2_is_highspeed_rhport(_p)  (false)
+  #define rusb2_is_highspeed_reg(_reg)   (false)
 #endif
 
 // USBFS_INT_IRQn and USBHS_USB_INT_RESUME_IRQn are generated by FSP
@@ -78,9 +84,6 @@ static rusb2_controller_t rusb2_controller[] = {
 
 #define RUSB2_REG(_p)      ((rusb2_reg_t*) rusb2_controller[_p].reg_base)
 
-#define rusb2_is_highspeed_rhport(_p)  (_p == 1)
-#define rusb2_is_highspeed_reg(_reg)   (_reg == RUSB2_REG(1))
-
 //--------------------------------------------------------------------+
 // RUSB2 API
 //--------------------------------------------------------------------+