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-rw-r--r--bsps/arm/atsam/include/libchip/include/mpu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/bsps/arm/atsam/include/libchip/include/mpu.h b/bsps/arm/atsam/include/libchip/include/mpu.h
index a5d00a681b..034ba58474 100644
--- a/bsps/arm/atsam/include/libchip/include/mpu.h
+++ b/bsps/arm/atsam/include/libchip/include/mpu.h
@@ -56,6 +56,7 @@
#endif
#define MPU_SYSTEM_REGION (12)
#ifdef __rtems__
+#define MPU_NULL_REGION (13)
/* Reserve the region with highest priority for user applications */
#define MPU_USER_DEFINED_REGION (15)
#endif /* __rtems__ */