diff --git a/features/storage/TESTS/blockdevice/general_block_device/main.cpp b/features/storage/TESTS/blockdevice/general_block_device/main.cpp
index cfe324780b7..2cfd3f2cb71 100644
--- a/features/storage/TESTS/blockdevice/general_block_device/main.cpp
+++ b/features/storage/TESTS/blockdevice/general_block_device/main.cpp
@@ -44,6 +44,10 @@
 #include "SDBlockDevice.h"
 #endif
 
+#if COMPONENT_SDIO
+#include "SDIOBlockDevice.h"
+#endif
+
 #if COMPONENT_FLASHIAP
 #include "FlashIAPBlockDevice.h"
 #endif
@@ -84,11 +88,12 @@ enum bd_type {
     qspif,
     dataflash,
     sd,
+    sdio,
     flashiap,
     default_bd
 };
 
-uint8_t bd_arr[5] = {0};
+uint8_t bd_arr[6] = {0};
 
 static uint8_t test_iteration = 0;
 
@@ -156,6 +161,13 @@ static BlockDevice *get_bd_instance(uint8_t bd_type)
                 MBED_CONF_SD_SPI_CS
             );
             return &default_bd;
+#endif
+            break;
+        }
+        case sdio: {
+#if COMPONENT_SDIO
+            static SDIOBlockDevice default_bd(MBED_CONF_SDIO_CD);
+            return &default_bd;
 #endif
             break;
         }
@@ -707,6 +719,8 @@ void test_get_type_functionality()
     TEST_ASSERT_EQUAL(0, strcmp(bd_type, "DATAFLASH"));
 #elif COMPONENT_SD
     TEST_ASSERT_EQUAL(0, strcmp(bd_type, "SD"));
+#elif COMPONENT_SDIO
+    TEST_ASSERT_EQUAL(0, strcmp(bd_type, "SDIO"));
 #elif COMPONET_FLASHIAP
     TEST_ASSERT_EQUAL(0, strcmp(bd_type, "FLASHIAP"));
 #endif
@@ -758,14 +772,17 @@ int get_bd_count()
 #if COMPONENT_SD
     bd_arr[count++] = sd;             //3
 #endif
+#if COMPONENT_SDIO
+    bd_arr[count++] = sdio;           //4
+#endif
 #if COMPONENT_FLASHIAP
-    bd_arr[count++] = flashiap;       //4
+    bd_arr[count++] = flashiap;       //5
 #endif
 
     return count;
 }
 
-static const char *prefix[] = {"SPIF ", "QSPIF ", "DATAFLASH ", "SD ", "FLASHIAP ", "DEFAULT "};
+static const char *prefix[] = {"SPIF ", "QSPIF ", "DATAFLASH ", "SD ", "SDIO", "FLASHIAP ", "DEFAULT "};
 
 int main()
 {
diff --git a/features/storage/TESTS/filesystem/general_filesystem/main.cpp b/features/storage/TESTS/filesystem/general_filesystem/main.cpp
index 732d0ca94ea..c1cba2a3842 100644
--- a/features/storage/TESTS/filesystem/general_filesystem/main.cpp
+++ b/features/storage/TESTS/filesystem/general_filesystem/main.cpp
@@ -26,6 +26,9 @@
 #elif COMPONENT_SD
 #include "SDBlockDevice.h"
 #include "FATFileSystem.h"
+#elif COMPONENT_SDIO
+#include "SDBIOlockDevice.h"
+#include "FATFileSystem.h"
 #else
 #error [NOT_SUPPORTED] storage test not supported on this platform
 #endif
diff --git a/features/storage/TESTS/kvstore/direct_access_devicekey_test/main.cpp b/features/storage/TESTS/kvstore/direct_access_devicekey_test/main.cpp
index 3c31f6859f7..f190745a1d9 100644
--- a/features/storage/TESTS/kvstore/direct_access_devicekey_test/main.cpp
+++ b/features/storage/TESTS/kvstore/direct_access_devicekey_test/main.cpp
@@ -287,7 +287,7 @@ void test_direct_access_to_device_inject_root()
 #if COMPONENT_QSPIF || COMPONENT_SPIF || COMPONENT_DATAFLASH
         internal_start_address =  MBED_CONF_STORAGE_TDB_EXTERNAL_INTERNAL_BASE_ADDRESS;
         internal_rbp_size =  MBED_CONF_STORAGE_TDB_EXTERNAL_RBP_INTERNAL_SIZE;
-#elif COMPONENT_SD
+#elif COMPONENT_SD || COMPONENT_SDIO
         internal_start_address =  MBED_CONF_STORAGE_FILESYSTEM_INTERNAL_BASE_ADDRESS;
         internal_rbp_size =  MBED_CONF_STORAGE_FILESYSTEM_RBP_INTERNAL_SIZE;
 #elif COMPONENT_FLASHIAP
diff --git a/features/storage/kvstore/conf/kv_config.cpp b/features/storage/kvstore/conf/kv_config.cpp
index 7105a108ed1..ea7c2bc22f6 100644
--- a/features/storage/kvstore/conf/kv_config.cpp
+++ b/features/storage/kvstore/conf/kv_config.cpp
@@ -51,6 +51,10 @@
 #include "SDBlockDevice.h"
 #endif
 
+#if COMPONENT_SDIO
+#include "SDIOBlockDevice.h"
+#endif
+
 /**
  * @brief This function initializes internal memory secure storage
  *        This includes a TDBStore instance with a FlashIAPBlockdevice
@@ -250,7 +254,7 @@ FileSystem *_get_filesystem_default(const char *mount)
 {
 #if COMPONENT_QSPIF || COMPONENT_SPIF || COMPONENT_DATAFLASH
     return _get_filesystem_LITTLE(mount);
-#elif COMPONENT_SD
+#elif COMPONENT_SD || COMPONENT_SDIO
     return _get_filesystem_FAT(mount);
 #else
     BlockDevice *bd = get_other_blockdevice();
@@ -618,6 +622,59 @@ BlockDevice *_get_blockdevice_SD(bd_addr_t start_address, bd_size_t size)
 #endif
 }
 
+BlockDevice *_get_blockdevice_SDIO(bd_addr_t start_address, bd_size_t size)
+{
+#if COMPONENT_SDIO
+
+    bd_addr_t aligned_end_address;
+    bd_addr_t aligned_start_address;
+
+    static SDIOBlockDevice bd(MBED_CONF_SDIO_CD);
+
+    if (bd.init() != MBED_SUCCESS) {
+        tr_error("KV Config: SDIOBlockDevice init fail");
+        return NULL;
+    }
+
+    if (strcmp(STR(MBED_CONF_STORAGE_STORAGE_TYPE), "TDB_EXTERNAL_NO_RBP") == 0 ||
+            strcmp(STR(MBED_CONF_STORAGE_STORAGE_TYPE), "TDB_EXTERNAL") == 0) {
+        //In TDBStore profile, we have a constraint of 4GByte
+        if (start_address == 0 && size == 0  && bd.size() < (uint32_t)(-1)) {
+            return &bd;
+        }
+
+        //If the size of external storage is bigger than 4G we need to slice it.
+        size = size != 0 ? size : align_down(bd.size(), bd.get_erase_size(bd.size() - 1));
+
+        if (_get_addresses(&bd, start_address, size, &aligned_start_address, &aligned_end_address) != 0) {
+            tr_error("KV Config: Fail to get addresses for SlicingBlockDevice.");
+            return NULL;
+        }
+
+        if (aligned_end_address - aligned_start_address != (uint32_t)(aligned_end_address - aligned_start_address)) {
+            aligned_end_address = aligned_start_address + (uint32_t)(-1);//Support up to 4G only
+        }
+    } else {
+        //For all other KVStore profiles beside TDBStore we take the entire external memory space.
+        if (start_address == 0 && size == 0) {
+            return &bd;
+        }
+
+        if (_get_addresses(&bd, start_address, size, &aligned_start_address, &aligned_end_address) != 0) {
+            tr_error("KV Config: Fail to get addresses for SlicingBlockDevice.");
+            return NULL;
+        }
+    }
+
+    aligned_end_address = align_down(aligned_end_address, bd.get_erase_size(aligned_end_address));
+    static SlicingBlockDevice sbd(&bd, aligned_start_address, aligned_end_address);
+    return &sbd;
+
+#else
+    return NULL;
+#endif
+}
+
 BlockDevice *_get_blockdevice_default(bd_addr_t start_address, bd_size_t size)
 {
 #if COMPONENT_QSPIF
@@ -628,6 +685,8 @@ BlockDevice *_get_blockdevice_default(bd_addr_t start_address, bd_size_t size)
     return _get_blockdevice_DATAFLASH(start_address, size);
 #elif COMPONENT_SD
     return _get_blockdevice_SD(start_address, size);
+#elif COMPONENT_SDIO
+    return _get_blockdevice_SDIO(start_address, size);
 #else
     tr_error("KV Config: No default component define in target.json for this target.");
     return NULL;
@@ -1119,7 +1178,7 @@ int _storage_config_default()
 {
 #if COMPONENT_QSPIF || COMPONENT_SPIF || COMPONENT_DATAFLASH
     return _storage_config_TDB_EXTERNAL();
-#elif COMPONENT_SD
+#elif COMPONENT_SD || COMPONENT_SDIO
     return _storage_config_FILESYSTEM();
 #elif COMPONENT_FLASHIAP
     return _storage_config_TDB_INTERNAL();
diff --git a/features/storage/kvstore/direct_access_devicekey/DirectAccessDevicekey.cpp b/features/storage/kvstore/direct_access_devicekey/DirectAccessDevicekey.cpp
index 68085164a1d..a74ce328ff5 100644
--- a/features/storage/kvstore/direct_access_devicekey/DirectAccessDevicekey.cpp
+++ b/features/storage/kvstore/direct_access_devicekey/DirectAccessDevicekey.cpp
@@ -127,7 +127,7 @@ int  get_expected_internal_TDBStore_position(uint32_t *out_tdb_start_offset, uin
 #if COMPONENT_QSPIF || COMPONENT_SPIF || COMPONENT_DATAFLASH
         *out_tdb_start_offset =  MBED_CONF_STORAGE_TDB_EXTERNAL_INTERNAL_BASE_ADDRESS;
         tdb_size = MBED_CONF_STORAGE_TDB_EXTERNAL_RBP_INTERNAL_SIZE;
-#elif COMPONENT_SD
+#elif COMPONENT_SD || COMPONENT_SDIO
         tdb_size = MBED_CONF_STORAGE_FILESYSTEM_RBP_INTERNAL_SIZE;
 #else
         return MBED_ERROR_UNSUPPORTED;
diff --git a/features/storage/system_storage/SystemStorage.cpp b/features/storage/system_storage/SystemStorage.cpp
index 8003a3c481a..062b95b8365 100644
--- a/features/storage/system_storage/SystemStorage.cpp
+++ b/features/storage/system_storage/SystemStorage.cpp
@@ -41,6 +41,10 @@
 #include "SDBlockDevice.h"
 #endif
 
+#if COMPONENT_SDIO
+#include "SDIOBlockDevice.h"
+#endif
+
 #if COMPONENT_FLASHIAP
 #include "FlashIAPBlockDevice.h"
 #endif
@@ -145,6 +149,12 @@ MBED_WEAK BlockDevice *BlockDevice::get_default_instance()
 
     return &default_bd;
 
+#elif COMPONENT_SDIO
+
+    static SDIOBlockDevice default_bd(MBED_CONF_SDIO_CD);
+
+    return &default_bd;
+
 #elif COMPONENT_FLASHIAP
 
 #if (MBED_CONF_FLASHIAP_BLOCK_DEVICE_SIZE == 0) && (MBED_CONF_FLASHIAP_BLOCK_DEVICE_BASE_ADDRESS == 0xFFFFFFFF)
@@ -193,7 +203,7 @@ MBED_WEAK FileSystem *FileSystem::get_default_instance()
 
     return &flash;
 
-#elif COMPONENT_SD
+#elif COMPONENT_SD || COMPONENT_SDIO
 
     static FATFileSystem sdcard("sd", BlockDevice::get_default_instance());
     sdcard.set_as_default();
diff --git a/targets/targets.json b/targets/targets.json
index 1a6b9a1f89a..e51cc645ae6 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -2085,7 +2085,7 @@
             "MBED_MPU_CUSTOM",
             "NXP_LPADC"
         ],
-        "components_add": ["FLASHIAP"],
+        "components_add": ["FLASHIAP", "SDIO"],
         "extra_labels_add": [
             "M33_NS",
             "PSA",
@@ -2107,7 +2107,8 @@
             "SPI",
             "SPISLAVE",
             "FLASH",
-            "STDIO_MESSAGES"
+            "STDIO_MESSAGES",
+	    "SDIO"
         ],
         "post_binary_hook": {"function": "LPC55S69Code.binary_hook"},
         "secure_image_filename": "tfm.bin",
@@ -3907,7 +3908,7 @@
         "bootloader_supported": true
     },
     "DISCO_F469NI": {
-        "components_add": ["QSPIF"],
+        "components_add": ["QSPIF", "SDIO"],
         "inherits": ["FAMILY_STM32"],
         "supported_form_factors": ["ARDUINO"],
         "core": "Cortex-M4F",
@@ -3934,7 +3935,9 @@
             "FLASH",
             "QSPI",
             "MPU",
-            "USBDEVICE"
+            "USBDEVICE",
+            "SDIO",
+            "SDIO_ASYNC"
         ],
         "release_versions": ["2", "5"],
         "device_name": "STM32F469NI",
@@ -4079,7 +4082,7 @@
             "STM32F746NG",
             "STM_EMAC"
         ],
-        "components_add": ["QSPIF", "FLASHIAP"],
+        "components_add": ["QSPIF", "FLASHIAP", "SDIO"],
         "supported_form_factors": ["ARDUINO"],
         "config": {
             "clock_source": {
@@ -4113,7 +4116,9 @@
             "FLASH",
             "QSPI",
             "USBDEVICE",
-            "MPU"
+            "MPU",
+            "SDIO",
+            "SDIO_ASYNC"
         ],
         "release_versions": ["2", "5"],
         "device_name": "STM32F746NG",