diff --git a/arch/arm/src/armv7-m/mpu.h b/arch/arm/src/armv7-m/mpu.h
index c58403dcf71..6f4617a6707 100644
--- a/arch/arm/src/armv7-m/mpu.h
+++ b/arch/arm/src/armv7-m/mpu.h
@@ -219,8 +219,9 @@ uint32_t mpu_subregion(uintptr_t base, size_t size, uint8_t l2size);
 
 static inline void mpu_showtype(void)
 {
-#ifdef CONFIG_DEBUG_FEATURES
+#ifdef CONFIG_DEBUG_ERROR
   uint32_t regval = getreg32(MPU_TYPE);
+
   err("%s MPU Regions: data=%d instr=%d\n",
       (regval & MPU_TYPE_SEPARATE) != 0 ? "Separate" : "Unified",
       (regval & MPU_TYPE_DREGION_MASK) >> MPU_TYPE_DREGION_SHIFT,
diff --git a/arch/arm/src/lpc11xx/lpc11_gpiodbg.c b/arch/arm/src/lpc11xx/lpc11_gpiodbg.c
index c14e11a7b88..b86b4973dbf 100644
--- a/arch/arm/src/lpc11xx/lpc11_gpiodbg.c
+++ b/arch/arm/src/lpc11xx/lpc11_gpiodbg.c
@@ -39,6 +39,15 @@
 
 #include <nuttx/config.h>
 
+/* Output debug info even if debug output is not selected. */
+
+#undef  CONFIG_DEBUG_ERROR
+#undef  CONFIG_DEBUG_WARN
+#undef  CONFIG_DEBUG_INFO
+#define CONFIG_DEBUG_ERROR 1
+#define CONFIG_DEBUG_WARN 1
+#define CONFIG_DEBUG_INFO 1
+
 #include <sys/types.h>
 #include <stdint.h>
 #include <stdbool.h>
@@ -59,14 +68,6 @@
 
 #ifdef CONFIG_DEBUG_GPIO
 
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
diff --git a/arch/arm/src/lpc17xx/lpc17_gpiodbg.c b/arch/arm/src/lpc17xx/lpc17_gpiodbg.c
index 70f8698ef0b..590aa80fb17 100644
--- a/arch/arm/src/lpc17xx/lpc17_gpiodbg.c
+++ b/arch/arm/src/lpc17xx/lpc17_gpiodbg.c
@@ -39,6 +39,15 @@
 
 #include <nuttx/config.h>
 
+/* Output debug info even if debug output is not selected. */
+
+#undef  CONFIG_DEBUG_ERROR
+#undef  CONFIG_DEBUG_WARN
+#undef  CONFIG_DEBUG_INFO
+#define CONFIG_DEBUG_ERROR 1
+#define CONFIG_DEBUG_WARN 1
+#define CONFIG_DEBUG_INFO 1
+
 #include <sys/types.h>
 #include <stdint.h>
 #include <stdbool.h>
@@ -59,14 +68,6 @@
 
 #ifdef CONFIG_DEBUG_GPIO
 
-/****************************************************************************
- * Private Types
- ****************************************************************************/
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
 /****************************************************************************
  * Private Functions
  ****************************************************************************/