diff --git a/soc/arm/common/cortex_m/arm_mpu_mem_cfg.h b/soc/arm/common/cortex_m/arm_mpu_mem_cfg.h
index dbcaa553302..eafd78e8d90 100644
--- a/soc/arm/common/cortex_m/arm_mpu_mem_cfg.h
+++ b/soc/arm/common/cortex_m/arm_mpu_mem_cfg.h
@@ -54,6 +54,10 @@
 #define REGION_SRAM_SIZE REGION_2M
 #elif CONFIG_SRAM_SIZE <= 4096
 #define REGION_SRAM_SIZE REGION_4M
+#elif CONFIG_SRAM_SIZE <= 8192
+#define REGION_SRAM_SIZE REGION_8M
+#elif CONFIG_SRAM_SIZE <= 16384
+#define REGION_SRAM_SIZE REGION_16M
 #elif CONFIG_SRAM_SIZE == 32768
 #define REGION_SRAM_SIZE REGION_32M
 #elif CONFIG_SRAM_SIZE == 65536