diff --git a/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.cpp b/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.cpp
index 0a84163465..020964ec3f 100644
--- a/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.cpp
+++ b/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.cpp
@@ -36,12 +36,6 @@
 #define DEBUG_PRINTF(...)
 #endif
 
-FlashIAPBlockDevice::FlashIAPBlockDevice()
-    : _flash(), _base(0), _size(0), _is_initialized(false), _init_ref_count(0)
-{
-    DEBUG_PRINTF("FlashIAPBlockDevice: %" PRIX32 " %" PRIX32 "\r\n", address, size);
-}
-
 FlashIAPBlockDevice::FlashIAPBlockDevice(uint32_t address, uint32_t size)
     : _flash(), _base(address), _size(size), _is_initialized(false), _init_ref_count(0)
 {
diff --git a/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.h b/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.h
index 4865e70630..20279658fb 100644
--- a/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.h
+++ b/components/storage/blockdevice/COMPONENT_FLASHIAP/FlashIAPBlockDevice.h
@@ -28,16 +28,15 @@
  */
 class FlashIAPBlockDevice : public BlockDevice {
 public:
-    /** Creates a FlashIAPBlockDevice **/
-    FlashIAPBlockDevice();
 
     /** Creates a FlashIAPBlockDevice
      *
      *  @param address  Physical address where the block device start
      *  @param size     The block device size
      */
-    FlashIAPBlockDevice(uint32_t address, uint32_t size = 0);
-
+    FlashIAPBlockDevice(uint32_t address = MBED_CONF_FLASHIAP_BLOCK_DEVICE_BASE_ADDRESS,
+                        uint32_t size = MBED_CONF_FLASHIAP_BLOCK_DEVICE_SIZE);
+                        
     virtual ~FlashIAPBlockDevice();
 
     /** Initialize a block device
diff --git a/components/storage/blockdevice/COMPONENT_FLASHIAP/mbed_lib.json b/components/storage/blockdevice/COMPONENT_FLASHIAP/mbed_lib.json
new file mode 100644
index 0000000000..49b4cdb7b9
--- /dev/null
+++ b/components/storage/blockdevice/COMPONENT_FLASHIAP/mbed_lib.json
@@ -0,0 +1,19 @@
+{
+    "name": "flashiap-block-device",
+    "config": {
+        "base-address": {
+            "help": "Base address for the block device on the external flash.",
+            "value": "0xFFFFFFFF"
+        },
+        "size": {
+            "help": "Memory allocated for block device.",
+            "value": "0"
+        }
+    },
+    "target_overrides": {
+        "REALTEK_RTL8195AM": {
+            "base-address": "0x1C0000",
+            "size": "0x40000"
+        }
+    }
+}
diff --git a/features/storage/system_storage/SystemStorage.cpp b/features/storage/system_storage/SystemStorage.cpp
index 963916a49b..04bec9e63f 100644
--- a/features/storage/system_storage/SystemStorage.cpp
+++ b/features/storage/system_storage/SystemStorage.cpp
@@ -31,7 +31,6 @@
 #endif
 
 #if COMPONENT_FLASHIAP
-#include "nvstore.h"
 #include "FlashIAPBlockDevice.h"
 #endif
 
@@ -85,12 +84,12 @@ MBED_WEAK BlockDevice *BlockDevice::get_default_instance()
 
 #elif COMPONENT_FLASHIAP
 
-    uint32_t top_address;
+#if (MBED_CONF_FLASHIAP_BLOCK_DEVICE_SIZE == 0) && (MBED_CONF_FLASHIAP_BLOCK_DEVICE_BASE_ADDRESS == 0xFFFFFFFF)
+
+    size_t flash_size;
+    uint32_t start_address;
     uint32_t bottom_address;
-    size_t area_size;
     FlashIAP flash;
-    NVStore &nvstore = NVStore::get_instance();
-    nvstore.get_area_params(0, top_address, area_size); //Find where nvstore begins
 
     int ret = flash.init();
     if (ret != 0) {
@@ -99,16 +98,21 @@ MBED_WEAK BlockDevice *BlockDevice::get_default_instance()
 
     //Find the start of first sector after text area
     bottom_address = align_up(FLASHIAP_ROM_END, flash.get_sector_size(FLASHIAP_ROM_END));
-
-    if (top_address <= bottom_address) {
-        return 0;
-    }
+    start_address = flash.get_flash_start();
+    flash_size = flash.get_flash_size();
 
     ret = flash.deinit();
 
-    static FlashIAPBlockDevice default_bd(bottom_address, top_address - bottom_address);
+    static FlashIAPBlockDevice default_bd(bottom_address, start_address + flash_size - bottom_address);
+
+#else
+
+    static FlashIAPBlockDevice default_bd;
+
+#endif
 
     return &default_bd;
+    
 #else
 
     return NULL;