diff --git a/connectivity/drivers/emac/CMakeLists.txt b/connectivity/drivers/emac/CMakeLists.txt
index 04246bea98..2aebd3fc93 100644
--- a/connectivity/drivers/emac/CMakeLists.txt
+++ b/connectivity/drivers/emac/CMakeLists.txt
@@ -21,8 +21,6 @@ elseif("NUVOTON_EMAC" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_NUVOTON_EMAC)
 elseif("NXP_EMAC" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_NXP_EMAC)
-elseif("RDA_EMAC" IN_LIST MBED_TARGET_LABELS)
-    add_subdirectory(TARGET_RDA_EMAC)
 elseif("RENESAS_EMAC" IN_LIST MBED_TARGET_LABELS)
     add_subdirectory(TARGET_RENESAS_EMAC)
 elseif("STM" IN_LIST MBED_TARGET_LABELS)
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/CMakeLists.txt
deleted file mode 100644
index ff2c4a5e32..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/CMakeLists.txt
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-add_subdirectory(lwip-wifi)
-
-target_include_directories(mbed-emac
-    PUBLIC
-        .
-)
-
-target_sources(mbed-emac
-    PRIVATE
-        RdaWiFiInterface.cpp
-        rda5981x_emac.cpp
-)
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.cpp b/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.cpp
deleted file mode 100644
index c68b732737..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "WiFiInterface.h"
-#include "RdaWiFiInterface.h"
-#include "rda5991h_wland.h"
-#include "nsapi_types.h"
-#include "wland_types.h"
-#include "rda_sys_wrapper.h"
-
-typedef enum {
-    WIFI_CONNECTED,
-    WIFI_DISCONNECTED,	
-}WIFI_STATE;
-
-static WIFI_STATE wifi_state = WIFI_DISCONNECTED;
-
-void daemon(void *para)
-{
-    void *main_msgQ = NULL;
-    rda_msg msg;
-    int ret;
-    RDAWiFiInterface *wifi = (RDAWiFiInterface *)para;
-    main_msgQ = rda_mail_create(10, sizeof(unsigned int)*4);
-    wifi->set_msg_queue(main_msgQ);
-    while(1){
-        rda_mail_get(main_msgQ, (void*)&msg, osWaitForever);
-        switch(msg.type)
-        {
-            case MAIN_RECONNECT:
-                printf("wifi disconnect!\r\n");
-                ret = wifi->disconnect();
-                if(ret != 0){
-                    printf("disconnect failed!\r\n");
-                    break;
-                }
-                ret = wifi->reconnect();
-                while(ret != 0){
-                    osDelay(5*1000);
-                    ret = wifi->reconnect();
-                };
-                break;
-            default:
-                printf("unknown msg\r\n");
-                break;
-        }
-    }
-}
-
-nsapi_error_t RDAWiFiInterface::set_channel(uint8_t channel)
-{
-    int ret= 0;
-    init();
-
-    if (channel > 13)
-        return NSAPI_ERROR_PARAMETER;
-
-    if (channel == 0) {
-        _channel = 0;
-        return NSAPI_ERROR_OK;
-    }
-
-    ret = rda5981_set_channel(channel);
-    if (ret == 0) {
-        _channel = channel;
-        return NSAPI_ERROR_OK;
-    } else {
-        return NSAPI_ERROR_TIMEOUT;
-    }
-}
-
-int8_t RDAWiFiInterface::get_rssi()
-{
-    return rda5981_get_rssi();
-}
-
-nsapi_error_t RDAWiFiInterface::init()
-{
-    if (!_interface) {
-        if (!_emac.power_up()) {
-            LWIP_DEBUGF(NETIF_DEBUG,("power up failed!\n"));
-        }
-        nsapi_error_t err = _stack.add_ethernet_interface(_emac, true, &_interface);
-        if (err != NSAPI_ERROR_OK) {
-            _interface = NULL;
-            return err;
-        }
-        _interface->attach(_connection_status_cb);
-        //rda_thread_new("daemon", daemon, this, DEFAULT_THREAD_STACKSIZE*4, osPriorityNormal);
-    }
-    return NSAPI_ERROR_OK;
-}
-
-nsapi_error_t RDAWiFiInterface::set_credentials(const char *ssid, const char *pass,
-                nsapi_security_t security)
-{
-    if (ssid == 0 || strlen(ssid) == 0) {
-        return NSAPI_ERROR_PARAMETER;
-    }
-    if (security != NSAPI_SECURITY_NONE && (pass == 0 || strlen(pass) == 0)) {
-        return NSAPI_ERROR_PARAMETER;
-    }
-    if (strlen(ssid) > 32 || strlen(pass) > 63) {
-        return NSAPI_ERROR_PARAMETER;
-    }
-    memcpy((void*)_ssid, (void*)ssid, strlen(ssid));
-    _ssid[strlen(ssid)] = '\0';
-    memcpy((void*)_pass, (void*)pass, strlen(pass));
-    _pass[strlen(pass)] = '\0';
-    _security = security;
-    return NSAPI_ERROR_OK;
-}
-
-nsapi_error_t RDAWiFiInterface::connect(const char *ssid, const char *pass,
-                nsapi_security_t security, uint8_t channel)
-{
-    rda_msg msg;
-    bool find = false;
-    int i = 0;
-    rda5981_scan_result bss;
-    int ret = 0;
-
-    if(wifi_state == WIFI_CONNECTED) {
-        return NSAPI_ERROR_IS_CONNECTED;
-    }
-	
-    if (ssid == NULL || ssid[0] == 0) {
-        return NSAPI_ERROR_PARAMETER;
-    }
-	
-    set_credentials(ssid, pass, security);
-    set_channel(channel);
-	
-    init();
-
-    //reset all scan result to avoid any previous stored SSID/PW/CHANNEL
-    rda5981_del_scan_all_result();
-    rda5981_scan(NULL,0,0);
-    if(rda5981_check_scan_result_name(ssid) != 0) {
-        for (i = 0; i< 5; i++) {
-            rda5981_scan(NULL, 0, 0);
-            if(rda5981_check_scan_result_name(ssid) == 0) {
-                find = true;
-                break;
-            }
-        }
-    } else {
-        find = true;
-    }
-
-    if (find == false) {
-        LWIP_DEBUGF(NETIF_DEBUG,("can not find the ap.\r\n"));
-        return NSAPI_ERROR_NO_SSID;
-    }
-    bss.channel = 15;
-    rda5981_get_scan_result_name(&bss, ssid);
-    if ((channel !=0) && (bss.channel != channel)) {
-        LWIP_DEBUGF(NETIF_DEBUG, ("invalid channel\r\n"));
-        return NSAPI_ERROR_CONNECTION_TIMEOUT;
-    }
-
-    memcpy(gssid, ssid, strlen(ssid));
-    if (pass[0] != 0) {
-        memcpy(gpass, pass, strlen(pass));
-    }
-    memset(gbssid, 0, NSAPI_MAC_BYTES);
-    gssid[strlen(ssid)] = gpass[strlen(pass)] = '\0';
-
-    msg.type = WLAND_CONNECT;
-    rda_mail_put(wland_msgQ, (void*)&msg, osWaitForever);
-    ret = rda_sem_wait(wifi_auth_sem, 10000);
-    if (ret) {
-        return NSAPI_ERROR_CONNECTION_TIMEOUT;
-    }
-	
-	wifi_state = WIFI_CONNECTED;
-
-    ret = _interface->bringup(_dhcp,
-          _ip_address[0] ? _ip_address : 0,
-          _netmask[0] ? _netmask : 0,
-          _gateway[0] ? _gateway : 0,
-          DEFAULT_STACK,
-          _blocking);
-    LWIP_DEBUGF(NETIF_DEBUG,("Interface bringup up status:%d\r\n",ret));
-
-    if( ret == NSAPI_ERROR_OK || ret == NSAPI_ERROR_IS_CONNECTED ) {
-        ret = NSAPI_ERROR_OK;
-    }
-    else if( ret == NSAPI_ERROR_DHCP_FAILURE) {
-        disconnect();
-    }
-
-    return ret;
-}
-
-
-nsapi_error_t RDAWiFiInterface::connect()
-{
-    return connect(_ssid, _pass, _security, _channel);
-}
-
-nsapi_error_t RDAWiFiInterface::disconnect()
-{
-    rda_msg msg;
-
-    if(wifi_state == WIFI_DISCONNECTED) {
-        return NSAPI_ERROR_NO_CONNECTION;
-    }
-    wifi_state = WIFI_DISCONNECTED;
-    void* wifi_disconnect_sem = rda_sem_create(0);
-    msg.type = WLAND_DISCONNECT;
-    msg.arg1 = (unsigned int)wifi_disconnect_sem;
-    rda_mail_put(wland_msgQ, (void*)&msg, osWaitForever);
-    rda_sem_wait(wifi_disconnect_sem, osWaitForever);
-    rda_sem_delete(wifi_disconnect_sem);
-    if (_interface) {
-        return _interface->bringdown();
-    }
-
-    return NSAPI_ERROR_NO_CONNECTION;
-}
-
-nsapi_error_t RDAWiFiInterface::reconnect()
-{
-    rda_msg msg;
-    bool find = false;
-    int i = 0;
-    rda5981_scan_result bss;
-    int ret = 0;
-
-    if (_ssid == NULL || _ssid[0] == 0) {
-        return NSAPI_ERROR_PARAMETER;
-    }
-
-    rda5981_del_scan_all_result();
-    if(rda5981_check_scan_result_name(_ssid) != 0) {
-        for (i = 0; i< 5; i++) {
-            rda5981_scan(NULL, 0, 0);
-            if(rda5981_check_scan_result_name(_ssid) == 0) {
-                find = true;
-                break;
-            }
-        }
-    } else {
-        find = true;
-    }
-
-    if (find == false) {
-        LWIP_DEBUGF(NETIF_DEBUG,"can not find the ap.\r\n");
-        return NSAPI_ERROR_CONNECTION_TIMEOUT;
-    }
-    bss.channel = 15;
-    rda5981_get_scan_result_name(&bss, _ssid);
-    if ((_channel !=0) && (bss.channel != _channel)) {
-        LWIP_DEBUGF(NETIF_DEBUG, "invalid channel\r\n");
-        return NSAPI_ERROR_CONNECTION_TIMEOUT;
-    }
-
-    memcpy(gssid, _ssid, strlen(_ssid));
-    if (_pass[0] != 0) {
-        memcpy(gpass, _pass, strlen(_pass));
-    }
-    memset(gbssid, 0, NSAPI_MAC_BYTES);
-    gssid[strlen(_ssid)] = gpass[strlen(_pass)] = '\0';
-
-    msg.type = WLAND_CONNECT;
-    rda_mail_put(wland_msgQ, (void*)&msg, osWaitForever);
-    ret = rda_sem_wait(wifi_auth_sem, 10000);
-    if (ret) {
-        return NSAPI_ERROR_CONNECTION_TIMEOUT;
-    }
-
-    if(_dhcp) {
-        memset(_ip_address, 0, sizeof(_ip_address));
-        memset(_netmask, 0, sizeof(_netmask));
-        memset(_gateway, 0, sizeof(_gateway));
-    }
-
-    ret = _interface->bringup(_dhcp,
-          _ip_address[0] ? _ip_address : 0,
-          _netmask[0] ? _netmask : 0,
-          _gateway[0] ? _gateway : 0,
-          DEFAULT_STACK,
-          _blocking);
-    LWIP_DEBUGF(NETIF_DEBUG,("Interface bringup up status:%d\r\n",ret));
-
-    if( ret == NSAPI_ERROR_OK || ret == NSAPI_ERROR_IS_CONNECTED ) {
-        ret = NSAPI_ERROR_OK;
-		wifi_state = WIFI_CONNECTED;
-    }
-    else if( ret == NSAPI_ERROR_DHCP_FAILURE) {
-        disconnect();
-    }
-    return ret;
-}
-
-
-nsapi_size_or_error_t RDAWiFiInterface::scan(WiFiAccessPoint *res, nsapi_size_t count)
-{
-    int bss_num = 0, i;
-    rda5981_scan_result *bss;
-    nsapi_wifi_ap_t ap;
-
-    init();
-
-    rda5981_scan(NULL, 0, 0);
-    bss_num = rda5981_get_scan_num();
-    if (count != 0) {
-        bss_num = (bss_num < count) ? bss_num : count;
-    }
-    if (res) {
-        bss = (rda5981_scan_result *)malloc(bss_num * sizeof(rda5981_scan_result));
-        rda5981_get_scan_result(bss, bss_num);
-        for (i=0; i<bss_num; i++) {
-            memset(&ap, 0, sizeof(nsapi_wifi_ap_t));
-            memcpy(ap.bssid, bss[i].BSSID, 6);
-            memcpy(ap.ssid, bss[i].SSID, bss[i].SSID_len);
-            ap.channel = bss[i].channel;
-            ap.rssi = bss[i].RSSI;
-            if (bss[i].secure_type == ENCRYPT_NONE) {
-                ap.security = NSAPI_SECURITY_NONE;
-            } else if(bss[i].secure_type & ENCRYPT_WEP) {
-                ap.security = NSAPI_SECURITY_WEP;
-            } else if((bss[i].secure_type & (ENCRYPT_WPA_TKIP | ENCRYPT_WPA_CCMP)) && \
-                        (bss[i].secure_type & (ENCRYPT_WPA2_TKIP | ENCRYPT_WPA2_CCMP))) {
-                ap.security = NSAPI_SECURITY_WPA_WPA2;
-            } else if((bss[i].secure_type & (ENCRYPT_WPA_TKIP | ENCRYPT_WPA_CCMP))) {
-                ap.security = NSAPI_SECURITY_WPA;
-            } else {
-                ap.security = NSAPI_SECURITY_WPA2;
-            }
-            WiFiAccessPoint ap_temp(ap);
-            memcpy(&res[i], &ap_temp, sizeof(WiFiAccessPoint));
-        }
-        free(bss);
-    }
-    return bss_num;
- 
-}
-
-WiFiInterface *WiFiInterface::get_default_instance() {
-    static RDAWiFiInterface wifinet;
-    return &wifinet;
-}
-
-nsapi_size_or_error_t RDAWiFiInterface::set_msg_queue(void *queue)
-{
-    //TO_DO: No need for 1st stage since application already control the logic.
-    //rda5981_set_main_queue(queue);
-    return 0;
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.h
deleted file mode 100644
index 7be55d369d..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/RdaWiFiInterface.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/* LWIP implementation of NetworkInterfaceAPI
- * Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef RDA_WIFI_INTERFACE_H
-#define RDA_WIFI_INTERFACE_H
-
-#include "nsapi.h"
-#include "rtos.h"
-#include "EMACInterface.h"
-#include "WiFiInterface.h"
-
-
-/** RDAWiFiInterface class
- *  Implementation of the NetworkStack for an EMAC-based Ethernet driver
- */
-class RDAWiFiInterface : public EMACInterface, public WiFiInterface
-{
-    public:
-        /** Create an EMAC-based ethernet interface.
-         *
-         * The default arguments obtain the default EMAC, which will be target-
-         * dependent (and the target may have some JSON option to choose which
-         * is the default, if there are multiple). The default stack is configured
-         * by JSON option nsapi.default-stack.
-         *
-         * Due to inability to return errors from the constructor, no real
-         * work is done until the first call to connect().
-         *
-         * @param emac  Reference to EMAC to use
-         * @param stack Reference to onboard-network stack to use
-         */
-        RDAWiFiInterface(
-                EMAC &emac = EMAC::get_default_instance(),
-                OnboardNetworkStack &stack = OnboardNetworkStack::get_default_instance()) : EMACInterface(emac, stack) {
-                _ssid[0] = '\0';
-                _pass[0] = '\0';
-                _channel = 0;
-                _security = NSAPI_SECURITY_NONE;
-        }
-
-        //static RDAWiFiInterface *get_target_default_instance();
-        
-        /** Set the WiFi network credentials
-         *
-         *  @param ssid      Name of the network to connect to
-         *  @param pass      Security passphrase to connect to the network
-         *  @param security  Type of encryption for connection
-         *                   (defaults to NSAPI_SECURITY_NONE)
-         *  @return          0 on success, or error code on failure
-         */
-        virtual nsapi_error_t set_credentials(const char *ssid, const char *pass,
-                nsapi_security_t security = NSAPI_SECURITY_NONE);
-
-        /** Set the WiFi network channel
-         *
-         *  @param channel   Channel on which the connection is to be made, or 0 for any (Default: 0)
-         *  @return          0 on success, or error code on failure
-         */
-        virtual nsapi_error_t set_channel(uint8_t channel);
-
-        /** Gets the current radio signal strength for active connection
-         *
-         *  @return         Connection strength in dBm (negative value),
-         *                  or 0 if measurement impossible
-         */
-        virtual int8_t get_rssi();
-
-        /** Start the interface
-         *
-         *  Attempts to connect to a WiFi network.
-         *
-         *  @param ssid      Name of the network to connect to
-         *  @param pass      Security passphrase to connect to the network
-         *  @param security  Type of encryption for connection (Default: NSAPI_SECURITY_NONE)
-         *  @param channel   Channel on which the connection is to be made, or 0 for any (Default: 0)
-         *  @return          0 on success, or error code on failure
-         */
-        virtual nsapi_error_t connect(const char *ssid, const char *pass,
-                nsapi_security_t security = NSAPI_SECURITY_NONE, uint8_t channel = 0);
-
-        /** Start the interface
-         *
-         *  Attempts to connect to a WiFi network. Requires ssid and passphrase to be set.
-         *  If passphrase is invalid, NSAPI_ERROR_AUTH_ERROR is returned.
-         *
-         *  @return         0 on success, negative error code on failure
-         */
-        virtual nsapi_error_t connect();
-
-        /** Stop the interface
-         *
-         *  @return         0 on success, or error code on failure
-         */
-        virtual nsapi_error_t disconnect();
-
-        /** Restart the interface
-        *
-        *  Attempts to reconnect to a WiFi network. Ssid and passphrase has been stored.
-        *
-        *  @return         0 on success, negative error code on failure
-        */
-        virtual nsapi_error_t reconnect();
-
-        /** Scan for available networks
-         *
-         *  This function will block. If the @a count is 0, function will only return count of available networks, so that
-         *  user can allocated necessary memory. If the \p count is grater than 0 and the a \p res is not NULL it'll be populated
-         *  with discovered networks up to value of \p count.
-         *
-         *  @param  res      Pointer to allocated array to store discovered AP
-         *  @param  count    Size of allocated @a res array, or 0 to only count available AP
-         *  @return          Number of entries in \p count, or if \p count was 0 number of available networks,
-         *                   negative on error see @a nsapi_error
-         */
-        virtual nsapi_size_or_error_t scan(WiFiAccessPoint *res, nsapi_size_t count);
-
-        virtual nsapi_size_or_error_t init();
-
-        virtual nsapi_size_or_error_t set_msg_queue(void *queue);
-
-    private:
-        char _ssid[33];
-        char _pass[65];
-		uint8_t _channel;
-        nsapi_security_t _security;    
-            
-
-};
-
-#endif
-
-
-
-
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/CMakeLists.txt
deleted file mode 100644
index 98c1686f9d..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-add_subdirectory(arch)
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/CMakeLists.txt
deleted file mode 100644
index 0c683b6c57..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/CMakeLists.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-if("RDA" IN_LIST MBED_TARGET_LABELS)
-    add_subdirectory(TARGET_RDA)
-endif()
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/CMakeLists.txt
deleted file mode 100644
index 6ec34e0daa..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/CMakeLists.txt
+++ /dev/null
@@ -1,6 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-if("UNO_91H" IN_LIST MBED_TARGET_LABELS)
-    add_subdirectory(TARGET_UNO_91H)
-endif()
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/CMakeLists.txt
deleted file mode 100644
index 935ad4a100..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/CMakeLists.txt
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright (c) 2020 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-add_subdirectory(lib)
-
-target_include_directories(mbed-emac
-    PUBLIC
-        .
-        ./inc
-)
-
-target_sources(mbed-emac
-    PRIVATE
-        src/maclib_task.c
-        src/rda5991h_wland.c
-        src/rda_sys_wrapper.c
-        src/wland_flash.c
-        src/wland_flash_wp.c
-        src/wland_ota.c
-)
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/csl_mbed.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/csl_mbed.h
deleted file mode 100644
index 52464fffef..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/csl_mbed.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*****************************************************************************/
-/*                                                                           */
-/*  File Name         : csl_mbed.h                                           */
-/*                                                                           */
-/*  Description       : This file contains all declarations and functions    */
-/*                      related to the chip support library.                 */
-/*                                                                           */
-/*  MbedOS Usage      : Call maclib_get_funcs_struct() to get MACLib funcs;  */
-/*                      Define mbed_reg_func_t var, Register it by ml_init;  */
-/*                                                                           */
-/*****************************************************************************/
-
-#ifndef CSL_MBED_H
-#define CSL_MBED_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*****************************************************************************/
-/* Constants                                                                 */
-/*****************************************************************************/
-#define RDA_EXT_INT_MAC_HW_INDEX        8
-#define RDA_EXT_INT_MAC_HW_PRI          0x80
-
-/*****************************************************************************/
-/* Enums                                                                     */
-/*****************************************************************************/
-typedef enum {
-    MACLIB_EVENT_PEND       = 0,
-    MACLIB_EVENT_PROCESS    = 1,
-    MACLIB_EVENT_CLEANUP    = 2
-} MACLIB_EVENT_HANDLE_T;
-
-/*****************************************************************************/
-/* Data Types                                                                */
-/*****************************************************************************/
-typedef struct
-{
-    unsigned int   ml_id;      /* Buffer identification */
-    unsigned char* ml_data;   /* Pkt start address     */
-    unsigned short ml_len;     /* Pkt length            */
-} maclib_buf_t;
-
-/* Structure that contains functions provided by MACLib */
-typedef struct {
-    /* Initialize MAC Library, input param: mbed_reg_func_t *reg_funcs */
-    int (*ml_init)(void *reg_funcs);
-
-    /* As a peroid task to process MAC Library background event */
-    void (*ml_tasklet)(void);
-
-    /* Get a new packet buffer, output param: maclib_buf_t *buf */
-    void (*ml_get_pkt_buf)(void *buf);
-
-    /* Mbed stack send packet to MAC Library, input param: maclib_buf_t *buf*/
-    int (*ml_xmit_pkt)(void *buf);
-
-    /* Mbed receive and processing packet done, input param: unsigned int buf_id */
-    void (*ml_recv_pkt_comp)(unsigned int buf_id);
-} maclib_func_t;
-
-/* Structure that contains functions provided by MbedOS */
-typedef struct {
-    /* MAC Library send packet to mbed stack, input param: maclib_buf_t *buf */
-    void (*mbed_recv_pkt)(void *buf);
-
-    /* Critical section start realized in mbed */
-    void (*mbed_critical_sec_start)(void);
-
-    /* Critical section end realized in mbed */
-    void (*mbed_critical_sec_end)(void);
-
-    /* Create interrupt in mbed, input param: vector/priority/isr(function), */
-    unsigned int (*mbed_critical_sec_counter_get)(void);
-    /* return: interrupt handle, non-zero is valid                           */
-    void * (*mbed_create_interrupt)(unsigned int vec, unsigned int pri, void *isr);
-
-    /* Delete interrupt in mbed, input param: vector */
-    void (*mbed_delete_interrupt)(unsigned int vec);
-
-    /* Enable interrupt in mbed, input param: vector */
-    void (*mbed_enable_interrupt)(unsigned int vec);
-
-    /* Disable interrupt in mbed, input param: vector */
-    void (*mbed_disable_interrupt)(unsigned int vec);
-
-    /* Get current time realized in mbed, return time in units of micro second */
-    unsigned long (*mbed_get_cur_time_ms)(void);
-
-    /* Create alarm in mbed, input param: func(callback)/data(pass to func), */
-    /* return: alarm handle, non-zero is valid                               */
-    void * (*mbed_create_alarm)(void *func, unsigned int data);
-
-    /* Delete alarm in mbed, input param: alarm handle */
-    void (*mbed_delete_alarm)(void **handle);
-
-    /* Start alarm in mbed, input param: alarm handle/timeout(micro second)  */
-    void (*mbed_start_alarm)(void *handle, unsigned int timeout_ms);
-
-    /* Stop alarm in mbed, input param: alarm handle */
-    void (*mbed_stop_alarm)(void *handle);
-
-#if defined(MBED_MUTEX_INTERFACE)
-    /* Create mutex */
-    void (*mbed_mutex_create)(void);
-
-    /* Delete mutex */
-    unsigned int (*mbed_mutex_delete)(void *rdamutex);
-
-    /* Wait mutex, timer unit : millisec */
-    unsigned int (*mbed_mutex_wait)(void *rdamutex, unsigned int millisec);
-
-    /* Release mutex */
-    unsigned int (*mbed_mutex_release)(void *rdamutex);
-#endif /* MBED_MUTEX_INTERFACE */
-
-    /* Event post/get callback function, input param: event_type */
-    void (*mbed_event_hdl_cb)(unsigned int event);
-
-    /* maclib task sleep callback function */
-    void (*mbed_task_sleep_cb)(void);
-
-    /* maclib task wakeup callback function */
-    void (*mbed_task_wakeup_cb)(void);
-} maclib_import_func_t;
-
-/*****************************************************************************/
-/* Extern Function Declarations                                              */
-/*****************************************************************************/
-extern void maclib_get_funcs_struct(maclib_func_t *func_str);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* CSL_MBED_H */
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/maclib_task.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/maclib_task.h
deleted file mode 100644
index 461b91d782..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/maclib_task.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/******************************************************************************
- * @file   : maclib_task.h
- * @brief  : WiFi MACLib task header file
- * @version: V1.0
- * @date   : 6. May 2017
- *
- * @note   :
- *
- ******************************************************************************/
-
-#ifndef _MACLIB_TASK_H_
-#define _MACLIB_TASK_H_
-
-#define MAC_LIB_MAX_FLEN    1536
-
-/**
- * Enums
- */
-typedef enum {
-    MACLIB_MSG_EVNT_HNDL,
-    MACLIB_MSG_WLAND_XMIT_PKT,
-    MACLIB_MSG_LWIP_XMIT_PKT
-} MACLIB_MSG_TYPE_T;
-
-/**
- * Structures
- */
-typedef struct {
-    MACLIB_MSG_TYPE_T type;
-    void *msg;
-    int is_free;
-} maclib_msg_t;
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/**
- * @brief     : MACLib main task [MACLib api]
- * @param[in] : pvParameters(pointer to enet data)
- * @param[out]:
- * @return    :
- */
-extern void maclib_task(void *pvParameters);
-extern void mbed_event_handle_cb(unsigned int event);
-extern void mbed_mltask_sleep_cb(void);
-extern void mbed_mltask_wakeup_cb(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _MACLIB_TASK_H_ */
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_flash.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_flash.h
deleted file mode 100644
index 5215d1b352..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_flash.h
+++ /dev/null
@@ -1,105 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _RDA5981_FLASH_H_
-#define _RDA5981_FLASH_H_
-
-#include "wland_types.h"
-
-/** This struct contains tx power parameter. */
-typedef struct
-{
-    u8 b[14];
-    u8 g[14];
-    u8 n[14];
-    u8 sum;
-    u8 padding1;//alignment
-} wland_tx_power_t;
-
-/*
- *function: store reg and corresponding value related to test mode
- *@valid: 1 means data is valid
- *@flag: if biti(i=0~7) == 1, it means reg_val[i] is in use
- *@reg_val: store reg and value, reg_val[i][0] is reg, reg_val[i][1] ~ reg_val[i][14] is value
- */
-typedef struct {
-    u32 valid;
-    u32 flag;
-    u16 reg_val[8][2];
-} wland_rf_t;
-
-typedef struct {
-    u32 valid;
-    u32 flag;
-    u16 reg_val[8][15];
-} wland_rf_channels_t;
-
-typedef struct {
-    u32 valid;
-    u32 flag;
-    u32 reg_val[8][2];
-} wland_phy_t;
-
-typedef struct {
-    u32 valid;
-    u32 flag;
-    u32 reg_val[8][15];
-} wland_phy_channels_t;
-
-/* if you add or delete any macros below, modify RDA5991H_USER_DATA_FLAG_UNINITIALIZED at the same time */
-#define RDA5991H_USER_DATA_FLAG_MAC BIT0
-#define RDA5991H_USER_DATA_FLAG_STA BIT1
-#define RDA5991H_USER_DATA_FLAG_PMK BIT2
-#define RDA5991H_USER_DATA_FLAG_IP BIT3
-#define RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN BIT4
-#define RDA5991H_USER_DATA_FLAG_TX_POWER BIT5
-#define RDA5991H_USER_DATA_FLAG_XTAL_CAL BIT6
-#define RDA5991H_USER_DATA_FLAG_TX_POWER_RF BIT7
-#define RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_GN BIT8
-#define RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_B BIT9
-#define RDA5991H_USER_DATA_FLAG_AP BIT10
-#define RDA5991H_USER_DATA_FLAG_APNET BIT11
-#define RDA5991H_USER_DATA_FLAG_DHCP BIT12
-#define RDA5991H_USER_DATA_FLAG_UART BIT13
-#define RDA5991H_USER_DATA_FLAG_RF BIT14
-#define RDA5991H_USER_DATA_FLAG_RF_CHANNELS BIT15
-#define RDA5991H_USER_DATA_FLAG_PHY BIT16
-#define RDA5991H_USER_DATA_FLAG_PHY_CHANNELS BIT17
-#define RDA5991H_USER_DATA_FLAG_TX_POWER_OFFSET BIT18
-
-#define RDA5981_VBAT_CAL BIT0
-#define RDA5981_GPADC0_CAL BIT1
-#define RDA5981_GPADC1_CAL BIT2
-#define RDA5981_PRODUCT_ID BIT3
-#define RDA5981_POWER_CLASS BIT4
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*
- * function: read VBAT Calibration value
- * y = k * x + b
- * @k: slope
- * @b: offset
- * return: 0:success, else:fail
- */
-int rda5981_flash_read_vbat_cal(float *k, float *b);
-
-#ifdef __cplusplus
-}
-#endif
-#endif
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_ota.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_ota.h
deleted file mode 100644
index d893fad211..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_ota.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _RDA5981_OTA_H_
-#define _RDA5981_OTA_H_
-#include <stdint.h>
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern const unsigned int RDA_FW_INFO_ADDR;
-extern const unsigned int RDA_UPGRADE_ADDR;
-
-/*
- * function: start to wirte a partition. this func will erase given flash region
- * @addr:    partition start address, must be 4k alignment
- * @img_len: length of image getted from OTA server, must be 4k alignment
- * return: 0:success, else:fail
- */
-int rda5981_write_partition_start(unsigned int addr, unsigned int img_len);
-
-/*
- * function: write image to flash, without erase.
- * the write region must be inside of the area given by func rda5981_write_partition_start
- * the write region must be in order, otherwise the end function will return crc error.
- * the maximum length could be write once time is 0x1000
- * @offset: offset from image inital position, must be 1k alignment
- * @buf: data to be written
- * @len: buffer len, max #0x1000, must be 1k alignment
- * return: 0:success, else:fail
- */
-int rda5981_write_partition(unsigned int offset, const unsigned char *buf, unsigned int len);
-
-/*
- * function: end of writing partition
- * return: 0:crc32 check success, else:fail
- */
-int rda5981_write_partition_end(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_RDA5981_OTA_H_*/
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_sniffer.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_sniffer.h
deleted file mode 100644
index 0f0f4658e3..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5981_sniffer.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _RDA5981_SNIFFER_H_
-#define _RDA5981_SNIFFER_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-#include "wland_types.h"
-
-/* Enable filtering ACK frames (no support)*/
-//#define RDA_RX_FILTER_DROP_ACK                  BIT0
-
-/* Enable filtering CTS frames (no support)*/
-//#define RDA_RX_FILTER_DROP_CTS                  BIT1
-
-/* Enable filtering RTS frames (no support)*/
-//#define RDA_RX_FILTER_DROP_RTS                  BIT2
-
-/* Enable filtering beacon frames */
-#define RDA_RX_FILTER_DROP_BEACON               BIT3
-
-/* Enable filtering ATIM frames (no support)*/
-//#define RDA_RX_FILTER_DROP_ATIM                 BIT4
-
-/* Enable filtering CF_END frames (no support)*/
-//#define RDA_RX_FILTER_DROP_CF_END               BIT5
-
-/* Enable filtering QCF_POLL frames (no support)*/
-//#define RDA_RX_FILTER_DROP_QCF_POLL             BIT6
-
-/* Filter Management frames which are not directed to current STA */
-#define RDA_RX_FILTER_DROP_ND_MGMT              BIT7
-
-/* Filter BC/MC MGMT frames belonging to other BSS */
-#define RDA_RX_FILTER_DROP_BC_MC_MGMT_OTHER_BSS BIT8
-
-/* Enable filtering of duplicate frames */
-#define RDA_RX_FILTER_DROP_DUPLICATE            BIT9
-
-/* Enable filtering of frames whose FCS has failed */
-#define RDA_RX_FILTER_DROP_FCS_FAILED           BIT10
-
-/* Enable filtering of De-authentication frame */
-#define RDA_RX_FILTER_DROP_DEAUTH               BIT11
-
-/* Filter BA frames which are not received as SIFS response (no support)*/
-//#define RDA_RX_FILTER_DROP_NSIFS_RESP_BA        BIT12
-
-/* Filter BA frames which are received as SIFS response (no support)*/
-//#define RDA_RX_FILTER_DROP_SIFS_RESP_BA         BIT13
-
-/* Filter frames which are received in secondary channel (20 MHz PPDU from Secondary channel) */
-#define RDA_RX_FILTER_DROP_SEC_CHANNEL          BIT14
-
-/* Filter BC/MC DATA frames belonging to other BSS */
-#define RDA_RX_FILTER_DROP_BC_MC_DATA_OTHER_BSS BIT15
-
-/* Filter DATA frames not directed to this station */
-#define RDA_RX_FILTER_DROP_ND_DATA              BIT16
-
-/* Filter Control frames which are not directed to current STA (no support)*/
-//#define RDA_RX_FILTER_DROP_ND_CONTROL           BIT17
-
-/* Filter Beacon frames (in IBSS mode) which are not used for adoption because the timestamp field is lower than TSF timer */
-#define RDA_RX_FILTER_DROP_IBSS_BEACON          BIT18
-
-typedef int (*sniffer_handler_t)(unsigned short data_len, void *data);
-
-int rda5981_enable_sniffer(sniffer_handler_t handler);
-int rda5981_disable_sniffer(void);
-//don't use this in sniffer callback handler
-int rda5981_disable_sniffer_nocallback(void);
-///TODO: time is no use anymore
-int rda5981_start_sniffer(unsigned char channel, unsigned char to_ds,
-    unsigned char from_ds, unsigned char mgm_frame, unsigned short time);
-int rda5981_stop_sniffer(void);
-int wland_sniffer_set_channel(unsigned char channel);
-int rda5981_set_filter(unsigned char to_ds, unsigned char from_ds, unsigned int mgm_filter);
-int rda5981_sniffer_enable_fcs(void);//for hiflying
-#ifdef __cplusplus
-}
-#endif
-
-#endif /*_RDA5981_SNIFFER_H_*/
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5991h_wland.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5991h_wland.h
deleted file mode 100644
index 38df3e8ca6..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda5991h_wland.h
+++ /dev/null
@@ -1,659 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _RDA5991H_WLAND_H_
-#define _RDA5991H_WLAND_H_
-
-#include "sys_arch.h"
-#include "wland_types.h"
-
-/* Mbed interface mac address
- * if MBED_MAC_ADD_x are zero, interface uid sets mac address,
- * otherwise MAC_ADD_x are used.
- */
-
-extern unsigned char user_mac[6];//not save in flash, need fill before wifi init every time
-extern unsigned char gssid[32+1];
-extern unsigned char gpass[64+1];
-extern unsigned char gchannel;
-extern unsigned char gbssid[6];
-
-extern unsigned char gssid_ap[32+1];
-extern unsigned char gpass_ap[64+1];
-extern unsigned char gchannel_ap;
-extern void *wland_msgQ;
-extern void *wifi_auth_sem;
-
-extern u8 sta_state;
-
-typedef enum {
-    WLAND_CONNECT,
-    WLAND_RECONNECT,
-    WLAND_DISCONNECT,
-    WLAND_DISCONNECT_ERROR,
-    WLAND_STARTAP,
-    WLAND_STOPAP,
-    WLAND_ADD_AP_GTK,
-    WLAND_AP_EAPOL_3_OF_4,
-    WLAND_ADD_AP_PTK,
-    WLAND_STAJOINED,
-    WLAND_STAEXITED,
-    WLAND_STADEAUTH,
-    WLAND_STADELETETIMER,
-    WLAND_MAC_CONNECTED,
-    WLAND_MAC_AP_CONNECTED,
-    WLAND_ADD_GTK,
-    WLAND_ADD_PTK,
-    WLAND_CON_FINISH,
-    WLAND_AUTO_RATE,
-    WLAND_ARP_OFFLOAD,
-    WLAND_SM_START,
-    WLAND_SM_STOP,
-    WLAND_WPS_CONNECT,
-    WLAND_WPS_START,
-    WLAND_WPS_DISCONNECT,
-}WLAND_MSG;
-
-typedef enum {
-    MAIN_CONNECT,
-    MAIN_RECONNECT,
-    MAIN_DISCONNECT,
-    MAIN_STOP_AP,
-}MAIN_MSG;
-
-typedef struct {
-    unsigned int type;
-    unsigned int arg1;
-    unsigned int arg2;
-    unsigned int arg3;
-}rda_msg;
-
-
-enum {
-    D_NONE_LEVEL = 0,
-    D_ERROR_LEVEL = 1,
-    D_INFO_LEVEL = 2,
-    D_DEBUG_LEVEL = 3,
-};
-
-#define WLAND_DBG_DUMP    0
-#define WPA_DBG_DUMP      0
-#define HUT_DBG_DUMP      0
-#define WLAND_DBG_LEVEL D_NONE_LEVEL
-#define WPA_DBG_LEBEL   D_NONE_LEVEL
-#define WLANDLIB_DBG_LEVEL D_NONE_LEVEL
-
-#define ETH_ALEN 6
-
-//encrypt type
-#define ENCRYPT_NONE        (0)
-#define ENCRYPT_WPA_TKIP    BIT0
-#define ENCRYPT_WPA_CCMP    BIT1
-#define ENCRYPT_WPA2_TKIP   BIT2
-#define ENCRYPT_WPA2_CCMP   BIT3
-#define ENCRYPT_WEP         BIT4
-
-/* r91h driver data structure */
-typedef struct {
-    struct netif *netif_sta;
-    struct netif *netif_ap;
-    sys_thread_t wland_thread;
-    sys_thread_t maclib_thread;
-    sys_mbox_t maclib_mbox;
-    sys_mbox_t wland_mbox;
-} rda_enetdata_t;
-
-__STATIC_INLINE int mac_is_valid(char* mac)
-{
-    return (mac[0] | mac[1] | mac[2] | mac[3] | mac[4] | mac[5]);
-}
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern void wland_txip_data(void *data, unsigned int len, int mode);
-extern void *wland_get_databuf(void);
-extern void wland_sta_init(void);
-extern void wland_reg_func(void);
-extern void r91h_phy_task(void *data);
-extern void wland_task(void *arg);
-extern void rda_get_macaddr(u8_t *macaddr, int mode);
-extern void rda5981_send_rawdata(char* data, unsigned int len);
-extern int rda5981_send_nulldata(int power_save);
-extern void rda5981_set_country_code(unsigned char country_code);// 0~china(1-14) 1~NA(1-11) 2~EU(1-13)
-extern int rda5981_set_retrans_policy(unsigned char count);
-extern int rda5981_set_channel(unsigned char channel);
-/* default is 0, receive multicast packet, disable please set 1*/
-extern int rda5981_filter_multicast(unsigned char enable);
-/* default is 0, 0 ~ no hidden, 1 ~ hidden zero len, 2 ~ hidden zero contents  */
-extern void rda5981_set_AP_hidden_type(unsigned char mode);
-extern void rda5981_set_AP_link_num(unsigned char num);
-extern char* rda5981_get_ver(void);
-extern int rda5981_enter_CE_MODE(unsigned char enable);
-/*
- * mode    0 - not 11n   1 - 11n
- *
- * -----------------11n(mode 1)(Mbps)-----------------
- * rate          HT20                   HT40
- *       GI(800ns)  GI(400ns)   GI(800ns)  GI(400ns)
- *  0       6.5       7.2          13.5       15
- *  1       13       14.2           27        30
- *  2      19.5      21.7          40.5       45
- *  3       26       28.9           54        60
- *  4       39       43.3           81        90
- *  5       52       57.8           108       120
- *  6      58.5      65            121.5      135  
- *  7       65       72             135       150  
- *
- * --------------not 11n(mode 0)(Mbps)-----------------
- * rate   data rate     rate   data rate
- *  0     autorate        9        9        
- *  1        1           12       12       
- *  2        2           18       18       
- *  5       5.5          24       24       
- *  11       11          36       36       
- *  6        6           48       48
- *
- */
-extern int rda5981_set_data_rate(unsigned char mode, unsigned char rate);
-extern void rda5981_set_mode(unsigned char bgn_enable);
-extern void rda5981_set_auth_timeout(unsigned char timeout_enable);
-typedef struct {
-    char BSSID[ETH_ALEN];
-    char SSID[32+1];
-    signed char RSSI;
-    unsigned char SSID_len;
-    unsigned char channel;
-    unsigned char secure_type;//refer #define ENCRYPT_XXX
-    unsigned char wmm;
-    unsigned char *ie;//user program couldn't free(ie);
-    unsigned short capability;
-    unsigned int ie_length;
-} rda5981_scan_result;
-
-typedef struct {
-    unsigned char mac[ETH_ALEN];
-    unsigned int ip;
-} rda5981_apsta_info;
-
-//scan one or all channel(if channel is 0) once
-int rda5981_scan(const char *SSID, const unsigned char SSID_len, const unsigned char channel);
-//0 passive mode, 1 active mode, scan time(unit is second)
-int rda5981_scan_v2(const char *SSID, const unsigned char SSID_len, const unsigned char channel, const unsigned char mode, \
-    const unsigned char scan_time);
-int rda5981_get_scan_num();
-int rda5981_get_scan_result(rda5981_scan_result *buf, const unsigned char len);
-int rda5981_get_scan_result_index(rda5981_scan_result *buf, const unsigned char index);
-int rda5981_get_scan_result_name(rda5981_scan_result *buf, const char *name);
-int rda5981_get_scan_result_bssid(rda5981_scan_result *buf, const unsigned char *bssid);
-int rda5981_check_scan_result_name(const char *name);
-int rda5981_check_scan_result(const char *ssid, const char *bssid, const unsigned channel);
-int rda5981_check_scan_result_name_bssid(const unsigned char *name, const unsigned char *bssid);
-int rda5981_del_scan_all_result(void);
-void rda5981_set_expired_time(unsigned int expired_time);
-int rda5981_get_joined_AP(rda5981_scan_result *bss);
-s8 rda5981_get_rssi();
-void rda5981_set_main_queue(void* queue);
-
-void rda5981_set_sta_listen_interval(unsigned char interval);
-void rda5981_set_sta_link_loss_time(unsigned char time);
-unsigned int rda5981_get_ap_join_info(rda5981_apsta_info *buf, const unsigned char len);
-void rda5981_set_AP_white_list(unsigned char flag, unsigned char *mac);
-int wland_set_joined_sta_ip(char *mac, unsigned int ip);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_mac_addr(unsigned char *mac_addr);
-int rda5981_flash_write_mac_addr(unsigned char *mac_addr);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_uart(void);
-int rda5981_flash_read_uart(unsigned int *uart);
-int rda5981_flash_write_uart(unsigned int *uart);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_ip_addr(unsigned char *ip_addr, unsigned char *server_addr);
-int rda5981_flash_write_ip_addr(unsigned char *ip_add, unsigned char *server_addr);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_dhcp_data(void);
-int rda5981_flash_read_dhcp_data(unsigned int *enable, unsigned int *ip, unsigned int *msk, unsigned int *gw);
-int rda5981_flash_write_dhcp_data(unsigned int enable, unsigned int ip, unsigned int msk, unsigned int gw);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_ap_data(char *ssid, char *passwd, unsigned char *channel);
-int rda5981_flash_write_ap_data(const char *ssid, const char *passwd, unsigned char channel);
-int rda5981_flash_erase_ap_data(void);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_ap_net_data(unsigned int *ip, unsigned int *msk, unsigned int *gw,
-        unsigned int *dhcps, unsigned int *dhcpe);
-int rda5981_flash_write_ap_net_data(unsigned int ip, unsigned int msk, unsigned int gw,
-            unsigned int dhcps, unsigned int dhcpe);
-int rda5981_flash_erase_ap_net_data(void);
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_sta_data(char *ssid, char *passwd);
-int rda5981_flash_write_sta_data(const char *ssid, const char *passwd);
-int rda5981_flash_erase_sta_data(void);
-
-
-/*
- * read 3rd parter data length from flash
- * return user data length
- */
-int rda5981_flash_read_3rdparter_data_length(void);
-
-/*
- * read 3rd parter data from flash
- * @buf, buf to store user data
- * @buf_len, length of buf
- * return user data length
- */
-int rda5981_flash_read_3rdparter_data(unsigned char *buf, unsigned int buf_len);
-
-/*
- * write 3rd parter data from flash
- * @buf, data to write
- * @buf_len, length of buf.
- * return 0:ok, else:fail
- */
-int rda5981_flash_write_3rdparter_data(const unsigned char *buf, unsigned int buf_len);
-
-/*
- * erase 3rd parter data from flash
- * return 0:ok, else:fail
- */
-int rda5981_flash_erase_3rdparter_data(void);
-
-/*
- * set flash size
- * @size, 1MB:0x100000, 2MB:0x200000, 4MB:0x400000. default size: 1MB
- * return 0:ok, else:fail
- */
-int rda5981_set_flash_size(const unsigned int size);
-
-/*
- * set userdata location on flash
- * @sys_data_addr, data to save system parameter, user can not operate this area directly.
- *         size:4KB. default location:0x180fb000
- * @user_data_addr, data to save user data. user can save own data in this area
- *         by @rda5981_flash_read_3rdparter_data
- *         and @rda5981_flash_write_3rdparter_data
- *         default location:0x180fc000
- * @user_data_len, user data length, default:4KB
- * return 0:ok, else:fail
- */
-int rda5981_set_user_data_addr(const unsigned int sys_data_addr,
-    const unsigned int user_data_addr, const unsigned int user_data_len);
-
-/*
- * function: erase flash
- * @addr: mast be 4k alignment
- * @len:  must be 4k alignment. (package 64KB erase and 4KB erase for different condition automatically)
- * return: 0:success, else:fail
- */
-int rda5981_erase_flash(unsigned int addr, unsigned int len);
-
-/*
- * function: write flash
- * @addr: mast be 256 alignment
- * @buf: data to be written, best be 4 alignment
- * @len: buffer len, mast be 4 alignment
- * return: 0:success, else:fail
- */
-int rda5981_write_flash(unsigned int addr, char *buf, unsigned int len);
-
-/*
- * function: read flash to @buf
- * @addr: best be 4 alignment
- * @buf: best be 4 alignment
- * @len: buffer len
- * return: 0:success, else:fail
- */
-int rda5981_read_flash(unsigned int addr, char *buf, unsigned int len);
-
-/*
- * function: read user data
- * @data: data to read
- * @len: length of data in byte
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_read_user_data(unsigned char *data, unsigned short len, unsigned int flag);
-
-/*
- * function: write user data
- * @data: data to write
- * @len: length of data in byte
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_write_user_data(unsigned char *data, unsigned short len, unsigned int flag);
-
-/*
- * function: erase user data
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_erase_user_data(unsigned int flag);
-
-/*
- * function: update tx power from efuse data, for reg 11F and 120
- * return: 0:success, else:fail
- */
-int update_tx_power_from_efuse(void);
-
-/*
- * function: update xtal calibration from efuse data, for reg DA
- * return: 0:success, else:fail
- */
-int update_xtal_cal_from_efuse(void);
-
-/*
- * function: update mac addr from flash data
- * return: 0:success, else:fail
- */
-int update_mac_addr_from_efuse(void);
-
-/*
- * function: update tx power from flash data, Deprecated version
- * return: 0:success, else:fail
- */
-int update_tx_power_from_flash(void);
-
-/*
- * function: update tx power from flash data, for reg 8A
- * return: 0:success, else:fail
- */
-int update_tx_power_rf_from_flash(void);
-
-/*
- * function: update tx power from flash data, for reg 11F and 120
- * return: 0:success, else:fail
- */
-int update_tx_power_phy_from_flash(void);
-
-/*
- * function: update xtal calibration from flash data
- * return: 0:success, else:fail
- */
-int update_xtal_cal_from_flash(void);
-
-/*
- * function: update mac addr from flash data
- * return: 0:success, else:fail
- */
-int update_mac_addr_from_flash(void);
-
-/*
- * function: write rf reg
- * @reg: rf reg data
- * @value: rf reg value
- * return: 0:success, else:fail
- * eg: 0x00DA:xtal calibration
- */
-int wland_rf_write(unsigned short reg, unsigned short value);
-
-/*
- * function: write rf reg
- * @reg: rf reg data
- * @value: rf reg value
- * @len : value length
- * return: 0:success, else:fail
- * eg: 0x008A:tx power rf
- */
-int wland_rf_write_all_channels(unsigned short reg, unsigned short *value, unsigned short len);
-
-/*
- * function: read rf reg
- * @reg: rf reg data
- * @value: rf reg value
- * return: 0:success, else:fail
- */
-int wland_rf_read(unsigned short reg, unsigned short *value);
-
-/*
- * function: read rf reg
- * @reg: rf reg data
- * @value: rf reg value
- * return: 0:success, else:fail
- * eg: 0x008A:tx power rf
- */
-int wland_rf_read_all_channels(unsigned short reg, unsigned short *value);
-
-/*
- * function: write phy reg
- * @reg: phy reg data
- * @value: phy reg value
- * return: 0:success, else:fail
- */
-int wland_phy_write(unsigned int reg, unsigned int value);
-
-/*
- * function: write phy reg
- * @reg: phy reg data
- * @value: phy reg value
- * @len : value length
- * return: 0:success, else:fail
- */
-int wland_phy_write_all_channels(unsigned int reg, unsigned int *value, unsigned short len);
-
-/*
- * function: read phy reg
- * @reg: phy reg data
- * @value: phy reg value
- * return: 0:success, else:fail
- */
-int wland_phy_read(unsigned int reg, unsigned int *value);
-
-/*
- * function: read phy reg
- * @reg: phy reg data
- * @value: phy reg value
- * return: 0:success, else:fail
- */
-int wland_phy_read_all_channels(unsigned int reg, unsigned int *value);
-
-/* efuse API start */
-/* Efuse CAN ONLY WRITE ONCE! DO NOT CALL THESE API IF YOU DO KNOW WHAT THEY MEANS!!! */
-
-/*
- * function: read all efuse
- * @value: buffer to store efuse data, 28 bytes
- * return: 0:success, else:fail
- */
-int wland_read_efuse(unsigned char *value);
-
-/*
- * function: read tx power from efuse
- * @tx_power: 2 bytes, first is mode g/n(range 0x25~0x54), second is mode b(range 0x15~0x54).
- * return: 0:success, else:fail
- */
-int wland_read_tx_power_from_efuse(unsigned char *tx_power);
-
-/*
- * function: read tx power from efuse
- * @tx_power: 2 bytes, first is mode g/n(range 0x25~0x54), second is mode b(range 0x15~0x54)
- * @len: must be 2
- * return: 0:success, else:fail
- */
-int wland_write_tx_power_to_efuse(unsigned char *tx_power, unsigned char len);
-
-/*
- * function: read xtal cal from efuse
- * @xtal_cal: 1 byte, maximum 0x7F
- * return: 0:success, else:fail
- */
-int wland_read_xtal_cal_from_efuse(unsigned char *cal_val);
-
-/*
- * function: write xtal cal to efuse
- * @xtal_cal: 1 byte, maximum 0x7F
- * @len : must be 1
- * return: 0:success, else:fail
- */
-int wland_write_xtal_cal_to_efuse(unsigned char *xtal_cal, unsigned char len);
-
-/*
- * function: write mac to efuse
- * @xtal_cal: 6 bytes
- * return: 0:success, else:fail
- */
-int wland_read_mac_addr_from_efuse(unsigned char *mac_addr);
-
-/*
- * function: write mac to efuse
- * @xtal_cal: 6 bytes
- * @len : must be 6
- * return: 0:success, else:fail
- */
-int wland_write_mac_addr_to_efuse(unsigned char*mac_addr, unsigned char len);
-/* efuse API end */
-
-/*
- * function: start rf test
- * @argc: number of argv
- * @argv: args for test, 6 elements for tx test, 4 elements for rx test
- * @is_tx: 1 for tx test, 0 for rx test
- * return: 0:success, else:fail
- */
-int wland_start_rf_test(unsigned int argc, unsigned int *argv, unsigned int is_tx);
-
-/*
- * function: stop rx test
- * return: 0:success, else:fail
- */
-int wland_stop_rx_test(void);
-
-/*
- * function: get rf test result
- * @result buffer to store rx result
- * return: 0:success, else:fail
- */
-int wland_get_rx_result(char *result);
-
-/*
- * function: restart rx test, use last rx test args
- * return: 0:success, else:fail
- */
-int wland_restart_rx_test(void);
-
-/*
- * function: stop tx test
- * return: 0:success, else:fail
- */
-int wland_stop_tx_test(void);
-
-/*
- * function: restart tx test, use last tx test args
- * return: 0:success, else:fail
- */
-int wland_restart_tx_test(void);
-
-#define RDA5981_FIRMWARE_INFO_ADDR 0x18003000
-/*
- * function: reboot to assigned addr (onece).
- * reboot to rf test mode, not for OTA
- * @firmware_info_addr: firmware info addr, depend on your flash layout
- * @reboot_addr: reboot addr, 0x18001000-0x1840000
- * return: 0:success, else:fail
- */
-int rda5981_reboot_to_addr(unsigned int firmware_info_addr, unsigned int reboot_addr);
-
-/*
- * function: read reg and corresponding value related to test mode stored in flash
- * @reg: reg to read
- * @value: buffer to store value
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_read_user_data_regs(unsigned char *reg, unsigned char *value, unsigned int flag);
-
-/*
- * function: write reg and corresponding value related to test mode stored in flash
- * @reg: reg to write
- * @value: buffer that stores value
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_write_user_data_regs(unsigned char *reg, unsigned char *value, unsigned int flag);
-
-/*
- * function: erase reg and corresponding value related to test mode stored in flash
- * @reg: reg to erase
- * @flag: user data flag
- * return: 0:success, else:fail
- */
-int rda5981_erase_user_data_regs(unsigned char *reg, unsigned int flag);
-
-/*
- * function: get flash Manufacturer ID
- * @mid:
- * return: 0:success, else:fail
- */
-int rda5981_flash_get_mid(unsigned char *mid);
-
-/*
- * function: get flash Device ID
- * @did:
- * return: 0:success, else:fail
- */
-int rda5981_flash_get_did(unsigned char *did);
-
-/*
- * function: get flash ID
- * @mid:
- * return: 0:success, else:fail
- */
-int rda5981_flash_get_jdid(unsigned short *jdid);
-
-/*
- * function: read mac reg
- * @reg: mac reg data
- * @value: mac reg value
- * return: 0:success, else:fail
- */
-int wland_mac_reg_read(unsigned short  reg, unsigned int *value);
-
-/*
- * function: write mac reg
- * @reg: mac reg data
- * @value: mac reg value
- * return: 0:success, else:fail
- */
-int wland_mac_reg_write(unsigned short reg, unsigned int value);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda_sys_wrapper.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda_sys_wrapper.h
deleted file mode 100644
index 25b80b5199..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/rda_sys_wrapper.h
+++ /dev/null
@@ -1,216 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#if 1
-#ifndef _RDA_SYS_WRAPPER_H_
-#define _RDA_SYS_WRAPPER_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Alarm */
-/**
- * @brief     : get current time in units of micro second
- * @param[in] :
- * @param[out]:
- * @return    : return time value with uint32 type
- */
-extern unsigned long rda_get_cur_time_ms(void);
-
-/**
- * @brief     : create an alarm with given function, return timer handle
- * @param[in] : func(callback)/data(pass to func)/mode(once or periodic)
- * @param[out]:
- * @return    : return timer handle, a pointer to the timer structure, non-zero is valid
- */
-extern void * rda_alarm_create_v2(void *func, unsigned int data, unsigned int mode);
-extern void * rda_alarm_create(void *func, unsigned int data);
-
-/**
- * @brief     : delete an alarm with given handle, then reset the handle
- * @param[in] : *handle(pointer to the timer structure)
- * @param[out]: **handle(address of the handle variable)
- * @return    :
- */
-extern int rda_alarm_delete(void **handle);
-
-/**
- * @brief     : start an alarm, raise a function call after given timeout delay
- * @param[in] : handle(pointer to the timer structure)/timeout(micro second)
- * @param[out]:
- * @return    :
- */
-extern int rda_alarm_start(void *handle, unsigned int timeout_ms);
-
-/**
- * @brief     : stop an alarm, will not raise a function call any more
- * @param[in] : handle(pointer to the timer structure)
- * @param[out]:
- * @return    :
- */
-extern int rda_alarm_stop(void *handle);
-
-
-/* Semaphore */
-/**
- * @brief     : create a semaphore
- * @param[in] : name and initial valve of semaphore
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern void* rda_sem_create(unsigned int count);
-
-/**
- * @brief     : wait a semaphore
- * @param[in] : name of semaphore
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_sem_wait(void *sem, unsigned int millisec);
-
-/**
- * @brief     : release a semaphore
- * @param[in] : name of semaphore
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_sem_release(void *sem);
-
-/**
- * @brief     : delete a semaphore
- * @param[in] : name of semaphore
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_sem_delete(void *sem);
-
-
-/* Queue */
-/**
- * @brief     : create a message queue
- * @param[in] : size of message queue
- * @param[out]:
- * @return    : return message queue id or NULL if error
- */
-extern void* rda_msgQ_create(unsigned int queuesz);
-
-/**
- * @brief     : put a message to queue
- * @param[in] : message queue id, message value and wait time
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_msg_put(void *msgQId, unsigned int msg, unsigned int millisec);
-
-/**
- * @brief     : get a message from queue
- * @param[in] : message queue id, message value and wait time
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_msg_get(void *msgQId, unsigned int *value, unsigned int millisec);
-
-/* Mail */
-/**
- * @brief     : create a mail
- * @param[in] : mail count/size
- * @param[out]:
- * @return    : return mail handle
- */
-void* rda_mail_create(unsigned int msgcnt, unsigned int msgsize);
-
-/**
- * @brief     : get a msg from mail
- * @param[in] : handler name of mail/mail/wait time
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-int rda_mail_get(void *rdahandle, void *evt, unsigned int wait);
-
-/**
- * @brief     : put a msg to mail
- * @param[in] : handler of mail/mail/wait time
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-
-int rda_mail_put(void *rdahandle, void *evt, unsigned int wait);
-
-/* Mutex */
-/**
- * @brief     : create a mutex
- * @param[in] :
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern void* rda_mutex_create(void);
-
-/**
- * @brief     : wait a mutex
- * @param[in] : id of mutex and wait time
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_mutex_wait(void *rdamutex, unsigned int millisec);
-
-/**
- * @brief     : release a mutex
- * @param[in] : id of mutex
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_mutex_realease(void *rdamutex);
-
-/**
- * @brief     : delete a mutex
- * @param[in] : id of mutex
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-extern int rda_mutex_delete(void *rdamutex);
-
-/* Thread */
-/**
- * @brief     : creat a thread
- * @param[in] : thread name/thread function/thread fuction argument/stacksize/thread priority
- * @param[out]:
- * @return    : return thread id
- */
-void* rda_thread_new(const char *pcName, void (*thread)(void *arg), void *arg, int stacksize, int priority);
-
-/**
- * @brief     : delete a thread
- * @param[in] : thread id
- * @param[out]:
- * @return    : return ERR or NO_ERR
- */
-int rda_thread_delete(void* id);
-
-/**
- * @brief     : get current thread id
- * @param[in] :
- * @param[out]:
- * @return    : return thread id
- */
-void* rda_thread_get_id(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _RDA_SYS_WRAPPER_H_ */
-#endif
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_dbg.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_dbg.h
deleted file mode 100644
index ce418c023b..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_dbg.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WLAND_DBG_H_
-#define _WLAND_DBG_H_
-#include <stdio.h>
-#include "rda5991h_wland.h"
-#include "wland_types.h"
-
-extern int wland_dbg_dump;
-extern int wland_dbg_level;
-
-#define RDA_WLAND_DBG
-
-#ifdef RDA_WLAND_DBG
-#define WLAND_DBG(level, fmt, ...)  do {\
-        int dbg_level = D_##level##_LEVEL;\
-        if((dbg_level <= wland_dbg_level)){\
-            printf("%s,"fmt, __func__, ##__VA_ARGS__);\
-        }                                                                           \
-    } while (0)
-
-//if frmae_len is zero, get len from frame header
-static inline void wland_dump_frame(const char* msg, u8 *data, u32 frame_len)
-{
-
-    u32 len,i;
-
-    if(wland_dbg_dump == 1) {
-        if(frame_len != 0) {
-            len = frame_len;
-        } else {
-            len = data[0] | ((data[1]&0x0f) << 8);
-        }
-        printf("%s : ",msg);
-        for(i=0; i<len; i++)
-            printf("%02x ", *(data+i));
-        printf("\r\nframe_len=%d\r\n", len);
-    }
-    return;
-}
-#else
-#define WLAND_DBG(level, fmt, ...)
-static inline void wland_dump_frame(const char* msg, u8 *data, u32 frame_len)
-{}
-#endif
-#endif /*_WLAND_DBG_H_*/
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash.h
deleted file mode 100644
index 24a31d7556..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash.h
+++ /dev/null
@@ -1,311 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WLAND_FLASH_H_
-#define _WLAND_FLASH_H_
-#include "wland_types.h"
-#include "rda5981_flash.h"
-#include "rda_ccfg_api.h"
-
-//#define FLASH_READ_CHECK
-
-#ifndef min
-#define min(a, b) ((a)<(b)?(a):(b))
-#endif /*min*/
-
-/** This struct contains all smartconfig mbed flash parameter. */
-typedef struct
-{
-    char ssid[36];
-    char key[64];
-} wland_sta_data_t;
-
-/** This struct contains ap data, include ssid key and channel. */
-typedef struct
-{
-    u8 channel;
-    char ssid[35];
-    char key[64];
-} wland_ap_data_t;
-
-/** This struct contains ap net data. */
-typedef struct
-{
-    u32 ip;
-    u32 msk;
-    u32 gw;
-    u32 dhcps;
-    u32 dhcpe;
-} wland_ap_net_data_t;
-
-typedef struct
-{
-    u32 fixip;
-    u32 ip;
-    u32 msk;
-    u32 gw;
-} wland_dhcp_t;
-
-#define RDA5991H_USER_DATA_FLAG_UNINITIALIZED (0xFFFFFFFF & \
-    (~(RDA5991H_USER_DATA_FLAG_MAC | \
-    RDA5991H_USER_DATA_FLAG_STA | \
-    RDA5991H_USER_DATA_FLAG_PMK | \
-    RDA5991H_USER_DATA_FLAG_IP | \
-    RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN | \
-    RDA5991H_USER_DATA_FLAG_TX_POWER | \
-    RDA5991H_USER_DATA_FLAG_XTAL_CAL | \
-    RDA5991H_USER_DATA_FLAG_TX_POWER_RF | \
-    RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_GN | \
-    RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_B | \
-    RDA5991H_USER_DATA_FLAG_AP | \
-    RDA5991H_USER_DATA_FLAG_APNET | \
-    RDA5991H_USER_DATA_FLAG_DHCP | \
-    RDA5991H_USER_DATA_FLAG_UART | \
-    RDA5991H_USER_DATA_FLAG_RF | \
-    RDA5991H_USER_DATA_FLAG_RF_CHANNELS | \
-    RDA5991H_USER_DATA_FLAG_PHY | \
-    RDA5991H_USER_DATA_FLAG_PHY_CHANNELS | \
-    RDA5991H_USER_DATA_FLAG_TX_POWER_OFFSET)))
-
-#define RDA5991H_USER_DATA_IP_LENGTH 8
-
-#define RDA5981_FLAG_FLAG "RDA5981"
-
-typedef struct
-{
-    u32 flag;
-    u8 rda5981_flag[8];
-    u8 mac_addr[6];
-    u8 tp_offset;
-    u8 padding1;//alignment
-    wland_sta_data_t sta_data;
-    u8 pmk[32];
-    u8 ip[RDA5991H_USER_DATA_IP_LENGTH];
-    u32 parter_data_len;
-    wland_tx_power_t tx_power;
-    u16 xtal_cal;
-    u8 padding2[2];//alignment
-    u16 tx_power_rf[14];
-    u8 tx_power_phy_gn;
-    u8 tx_power_phy_b;
-    u8 padding3[2];
-    wland_ap_data_t ap_data;
-    wland_ap_net_data_t ap_net_data;
-    wland_dhcp_t dhcp;
-    u32 uart;
-    wland_rf_t rf;
-    wland_rf_channels_t rf_channels;
-    wland_phy_t phy;
-    wland_phy_channels_t phy_channels;
-}rda5991h_user_data;
-
-#define SECTOR_SIZE     4096
-#define FLASH_SIZE 0x100000
-
-#define RDA5991H_PARTITION_TABLE_END_ADDR 0x18001000 //partition table end addr
-
-#define RDA5991H_USER_DATA_ADDR 0x180fb000 //4k(partition table)+500k+500k:
-#define RDA5991H_3RDPARTER_DATA_ADDR 0x180fc000
-#define RDA5991H_3RDPARTER_DATA_LEN 0x1000
-
-#define FLASH_CTL_REG_BASE 0x17fff000
-#define FLASH_CTL_TX_CMD_ADDR_REG (FLASH_CTL_REG_BASE + 0x00)
-#define CMD_64KB_BLOCK_ERASE (0x000000d8UL)
-#define WRITE_REG32(REG, VAL)    ((*(volatile unsigned int*)(REG)) = (unsigned int)(VAL))
-
-#define FLASH_ERASE_FUN_ADDR 0x21f1//smartlink_erase_for_mbed
-#define FLASH_WRITE_FUN_ADDR 0x2241//smartlink_write_for_mbed
-#define FLASH_READ_FUN_ADDR 0x2243//smartlink_read_for_mbed
-#define FLASH_ERASE_PARTITION_FUN_ADDR 0x2139//spi_flash_erase_partition
-#define SPI_FLASH_READ_DATA_FOR_MBED_ADDR 0x2007//spi_flash_read_data_for_mbed
-#define spi_flash_disable_cache_addr 0x1eb7//spi_flash_disable_cache
-#define spi_flash_flush_cache_addr 0x1ecd//spi_flash_flush_cache
-#define spi_flash_cfg_cache_addr 0x1e9f//spi_flash_cfg_cache
-#define spi_flash_erase_4KB_sector_addr 0x23a3
-#define spi_wip_reset_addr 0x1d8b
-#define spi_write_reset_addr 0x1d9f
-#define wait_busy_down_addr 0x1d81
-
-#define FLASH_ERASE_FUN_ADDR_4 0x2221//smartlink_erase_for_mbed
-#define FLASH_WRITE_FUN_ADDR_4 0x2271//smartlink_write_for_mbed
-#define FLASH_READ_FUN_ADDR_4 0x2273//smartlink_read_for_mbed
-#define FLASH_ERASE_PARTITION_FUN_ADDR_4 0x2169//spi_flash_erase_partition
-#define SPI_FLASH_READ_DATA_FOR_MBED_ADDR_4 0x2037//spi_flash_read_data_for_mbed
-#define spi_flash_disable_cache_addr_4 0x1ee7//spi_flash_disable_cache
-#define spi_flash_flush_cache_addr_4 0x1efd//spi_flash_flush_cache
-#define spi_flash_cfg_cache_addr_4 0x1ecf//spi_flash_cfg_cache
-#define spi_flash_erase_4KB_sector_addr_4 0x23d3
-#define spi_wip_reset_addr_4 0x1dbb
-#define spi_write_reset_addr_4 0x1dcf
-#define wait_busy_down_addr_4 0x1db1
-
-/*
- * return 0 if find
- */
-int rda5981_flash_read_pmk(u8 *pmk);
-int rda5981_flash_read_sta_data(char *ssid, char *passwd);
-void rda5981_spi_erase_partition(void *src, u32 counts);
-
-//@len must be 4k aligment
-//int rda5981_write_flash(u32 addr, char *buf, u32 len);
-//int rda5981_read_flash(u32 addr, char *buf, u32 len);
-
-#define VERSION_SZ          24
-struct firmware_info
-{
-    u32 magic;
-    u8 version[VERSION_SZ];
-
-    u32 addr;
-    u32 size;
-    u32 crc32;
-    u32 bootaddr;//add for rf_test
-    u32 bootmagic;
-};
-
-#define RDA5981_FIRMWARE_MAGIC      0xEAEA
-
-static inline void wait_busy_down_2(void)
-{
-    ((void(*)(void))wait_busy_down_addr)();
-}
-
-static inline void spi_write_reset_2(void)
-{
-    ((void(*)(void))spi_write_reset_addr)();
-}
-
-static inline void spi_wip_reset_2(void)
-{
-    ((void(*)(void))spi_wip_reset_addr)();
-}
-
-static inline void wait_busy_down_4(void)
-{
-    ((void(*)(void))wait_busy_down_addr_4)();
-}
-
-static inline void spi_write_reset_4(void)
-{
-    ((void(*)(void))spi_write_reset_addr_4)();
-}
-
-static inline void spi_wip_reset_4(void)
-{
-    ((void(*)(void))spi_wip_reset_addr_4)();
-}
-
-static void wait_busy_down(void)
-{
-    if (rda_ccfg_hwver() >= 4) {
-        wait_busy_down_4();
-    } else {
-        wait_busy_down_2();
-    }
-}
-
-static void spi_write_reset(void)
-{
-    if (rda_ccfg_hwver() >= 4) {
-        spi_write_reset_4();
-    } else {
-        spi_write_reset_2();
-    }
-}
-
-static void spi_wip_reset(void)
-{
-    if (rda_ccfg_hwver() >= 4) {
-        spi_wip_reset_4();
-    } else {
-        spi_wip_reset_2();
-    }
-}
-
-static inline void spi_flash_enable_cache(void)
-{
-    unsigned int func = spi_flash_cfg_cache_addr;
-    if (rda_ccfg_hwver() >= 4) {
-        func = spi_flash_cfg_cache_addr_4;
-    }
-    ((void(*)(void))func)();
-}
-
-static inline void spi_flash_disable_cache(void)
-{
-    unsigned int func = spi_flash_disable_cache_addr;
-    if (rda_ccfg_hwver() >= 4) {
-        func = spi_flash_disable_cache_addr_4;
-    }
-    ((void(*)(void))func)();
-}
-
-static inline void spi_flash_flush_cache(void)
-{
-    unsigned int func = spi_flash_flush_cache_addr;
-    if (rda_ccfg_hwver() >= 4) {
-        func = spi_flash_flush_cache_addr_4;
-    }
-    ((void(*)(void))func)();
-}
-
-static inline void rda5981_spi_flash_erase_4KB_sector(u32 addr)
-{
-    unsigned int func = spi_flash_erase_4KB_sector_addr;
-    if (rda_ccfg_hwver() >= 4) {
-        func = spi_flash_erase_4KB_sector_addr_4;
-    }
-    ((void(*)(u32))func)(addr);
-}
-
-static inline void RDA5991H_ERASE_FLASH(void *addr, u32 len)
-{
-    unsigned int func = FLASH_ERASE_FUN_ADDR;
-    if (rda_ccfg_hwver() >= 4) {
-        func = FLASH_ERASE_FUN_ADDR_4;
-    }
-    ((void(*)(void *, u32))func)(addr, len);
-}
-
-static inline void RDA5991H_WRITE_FLASH(u32 addr, u8 *data, u32 len)
-{
-    unsigned int func = FLASH_WRITE_FUN_ADDR;
-    if (rda_ccfg_hwver() >= 4) {
-        func = FLASH_WRITE_FUN_ADDR_4;
-    }
-    ((void(*)(u32, u8 *, u32))func)(addr, data, len);
-}
-
-static inline void RDA5991H_READ_FLASH(u32 addr, u8 *buf, u32 len)
-{
-    unsigned int func = FLASH_READ_FUN_ADDR;
-    if (rda_ccfg_hwver() >= 4) {
-        func = FLASH_READ_FUN_ADDR_4;
-    }
-    ((void(*)(u32, u8 *, u32))func)(addr, buf, len);
-}
-
-static inline void SPI_FLASH_READ_DATA_FOR_MBED(void *addr, void *buf, u32 len)
-{
-    unsigned int func = SPI_FLASH_READ_DATA_FOR_MBED_ADDR;
-    if (rda_ccfg_hwver() >= 4) {
-        func = SPI_FLASH_READ_DATA_FOR_MBED_ADDR_4;
-    }
-    ((void(*)(void *, void *, u32))func)(buf, addr, len);
-}
-
-#endif /*_WLAND_FLASH_H_*/
-
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash_wp.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash_wp.h
deleted file mode 100644
index 40ee40ee59..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_flash_wp.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WLAND_FLASH_WP_H_
-#define _WLAND_FLASH_WP_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-extern void flash_wrtie_protect_all();
-extern void flash_wrtie_protect_none();
-extern void flash_wrtie_protect(unsigned int offset);
-extern void rda5981_flash_init();
-#ifdef __cplusplus
-}
-#endif
-
-#endif
-
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_ota.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_ota.h
deleted file mode 100644
index 57b9052871..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_ota.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WLAND_OTA_H_
-#define _WLAND_OTA_H_
-#include "wland_types.h"
-#include "rda_ccfg_api.h"
-
-extern u32 flash_size;
-
-#define CRC32_TABLE_ADDR 0xbb5c
-#define CRC32_ADDR 0x8dff//u32 crc32(const u8 *p, size_t len)
-
-#define CRC32_TABLE_ADDR_4 0xbbd8
-#define CRC32_ADDR_4 0x8e33//u32 crc32(const u8 *p, size_t len)
-
-static inline unsigned int bootrom_crc32(unsigned char *p, unsigned int len)
-{
-    unsigned int func = CRC32_ADDR;
-    if (rda_ccfg_hwver() >= 4) {
-        func = CRC32_ADDR_4;
-    }
-    return ((unsigned int(*)(unsigned char *, unsigned int))func)(p, len);
-}
-
-#endif /*_WLAND_OTA_H_*/
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_rf.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_rf.h
deleted file mode 100644
index 6a9ebebc98..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_rf.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _WLAND_RF_H_
-#define _WLAND_RF_H_
-
-#include "wland_types.h"
-
-#define WLAND_TXP_NUM       2
-#define WLAND_CHANNEL_NUM   14
-#define WLAND_TX_POWER_PHY_GN_REG  0x11F
-#define WLAND_TX_POWER_PHY_B_REG   0x120
-#define WLAND_TX_POWER_RF_REG      0x8A
-#define WLAND_XTAL_CAL_REG         0xDA
-
-#define MAKE_WORD16(lsb, msb)           (((u16)(msb) << 8)  & 0xFF00) | (lsb)
-#define MAKE_WORD32(lsw, msw)           (((u32)(msw) << 16) & 0xFFFF0000) | (lsw)
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif
-
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_types.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_types.h
deleted file mode 100644
index 3cb0e7e9e6..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/inc/wland_types.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/*****************************************************************************/
-/*                                                                           */
-/*  File Name         : wland_types.h                                             */
-/*                                                                           */
-/*  Description       : This file contains all the data type definitions for */
-/*                      MAC implementation.                                  */
-/*                                                                           */
-/*****************************************************************************/
-
-#ifndef WLAND_TYPES_H
-#define WLAND_TYPES_H
-
-/*****************************************************************************/
-/* Constants Definitions                                                     */
-/*****************************************************************************/
-
-typedef unsigned char       u8;
-typedef unsigned short      u16;
-typedef unsigned int        u32;
-typedef unsigned long long  u64;
-typedef signed char         s8;
-typedef signed short        s16;
-typedef signed int          s32;
-typedef signed long long    s64;
-
-typedef unsigned int                size_t;
-
-/** Indicates Bit Value of BITx */
-#ifndef BIT
-#define BIT(x)                          (1ul << (x))
-
-/*****************************************************************************/
-/* Constant Definitions                                                      */
-/*****************************************************************************/
-
-#define BIT0                            (1ul << 0)
-#define BIT1                            (1ul << 1)
-#define BIT2                            (1ul << 2)
-#define BIT3                            (1ul << 3)
-#define BIT4                            (1ul << 4)
-#define BIT5                            (1ul << 5)
-#define BIT6                            (1ul << 6)
-#define BIT7                            (1ul << 7)
-#define BIT8                            (1ul << 8)
-#define BIT9                            (1ul << 9)
-#define BIT10                           (1ul << 10)
-#define BIT11                           (1ul << 11)
-#define BIT12                           (1ul << 12)
-#define BIT13                           (1ul << 13)
-#define BIT14                           (1ul << 14)
-#define BIT15                           (1ul << 15)
-#define BIT16                           (1ul << 16)
-#define BIT17                           (1ul << 17)
-#define BIT18                           (1ul << 18)
-#define BIT19                           (1ul << 19)
-#define BIT20                           (1ul << 20)
-#define BIT21                           (1ul << 21)
-#define BIT22                           (1ul << 22)
-#define BIT23                           (1ul << 23)
-#define BIT24                           (1ul << 24)
-#define BIT25                           (1ul << 25)
-#define BIT26                           (1ul << 26)
-#define BIT27                           (1ul << 27)
-#define BIT28                           (1ul << 28)
-#define BIT29                           (1ul << 29)
-#define BIT30                           (1ul << 30)
-#define BIT31                           (1ul << 31)
-#endif
-
-#endif /* WLAND_TYPES_H */
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/CMakeLists.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/CMakeLists.txt
deleted file mode 100644
index 3f0d69fbeb..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/CMakeLists.txt
+++ /dev/null
@@ -1,13 +0,0 @@
-# Copyright (c) 2020-2021 ARM Limited. All rights reserved.
-# SPDX-License-Identifier: Apache-2.0
-
-function(_mbed_get_lib_file_uno_91h)
-    if(${MBED_TOOLCHAIN} STREQUAL "GCC_ARM")
-        set(LIB_FILE TOOLCHAIN_GCC_ARM/libwifi_sta_ap.a)
-    elseif(${MBED_TOOLCHAIN} STREQUAL "ARM")
-        set(LIB_FILE TOOLCHAIN_ARM_STD/libwifi_sta_ap.ar)
-    endif()
-    target_sources(mbed-emac PRIVATE ${LIB_FILE})
-endfunction()
-
-_mbed_get_lib_file_uno_91h()
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/LICENSE-permissive-binary-license-1.0.txt b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/LICENSE-permissive-binary-license-1.0.txt
deleted file mode 100644
index 24e25298db..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/LICENSE-permissive-binary-license-1.0.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-Permissive Binary License
-
-Version 1.0, January 2019
-
-Redistribution.  Redistribution and use in binary form, without
-modification, are permitted provided that the following conditions are
-met:
-
-1) Redistributions must reproduce the above copyright notice and the
-   following disclaimer in the documentation and/or other materials
-   provided with the distribution.
-
-2) Unless to the extent explicitly permitted by law, no reverse
-   engineering, decompilation, or disassembly of this software is
-   permitted.
-
-3) Redistribution as part of a software development kit must include the
-   accompanying file named “DEPENDENCIES” and any dependencies listed in
-   that file.
-
-4) Neither the name of the copyright holder nor the names of its
-   contributors may be used to endorse or promote products derived from
-   this software without specific prior written permission.
-
-Limited patent license. The copyright holders (and contributors) grant a
-worldwide, non-exclusive, no-charge, royalty-free patent license to
-make, have made, use, offer to sell, sell, import, and otherwise
-transfer this software, where such license applies only to those patent
-claims licensable by the copyright holders (and contributors) that are
-necessarily infringed by this software. This patent license shall not
-apply to any combinations that include this software.  No hardware is
-licensed hereunder.
-
-If you institute patent litigation against any entity (including a
-cross-claim or counterclaim in a lawsuit) alleging that the software
-itself infringes your patent(s), then your rights granted under this
-license shall terminate as of the date such litigation is filed.
-
-DISCLAIMER. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
-CONTRIBUTORS "AS IS." ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT
-NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
\ No newline at end of file
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/README.md b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/README.md
deleted file mode 100644
index 5df1aa37df..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-This directory tree contains binaries build from RDA SDK modified for Mbed OS and released under Permissive Binary License.
-
-libhal files in the subfolders are generated with toolchains:
-
-Arm Compiler 5 - version 5.06u6
-GNU Arm Embedded - version 6.3.1
-IAR EWARM - version 8.32.2.178
\ No newline at end of file
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/TOOLCHAIN_GCC_ARM/libwifi_sta_ap.a b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/TOOLCHAIN_GCC_ARM/libwifi_sta_ap.a
deleted file mode 100644
index 4d2ed200dc..0000000000
Binary files a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/lib/TOOLCHAIN_GCC_ARM/libwifi_sta_ap.a and /dev/null differ
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/maclib_task.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/maclib_task.c
deleted file mode 100644
index 251133ef46..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/maclib_task.c
+++ /dev/null
@@ -1,223 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/******************************************************************************
- * @file   : maclib_task.c
- * @brief  : WiFi MACLib task source file
- * @version: V1.0
- * @date   : 6. May 2017
- *
- * @note
- *
- ******************************************************************************/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "mbed_interface.h"
-#include "cmsis_os.h"
-#include "csl_mbed.h"
-#include "maclib_task.h"
-#include "rda5991h_wland.h"
-
-#include "lwip/pbuf.h"
-#include "lwip/sys.h"
-
-/**
- * Macros
- */
-#define MACLIB_TASK_DEBUG   (0)
-
-/**
- * Variables
- */
-static int maclib_task_run = 0;
-static void* maclib_mbox;
-static int g_event_num = 0;
-static int g_event_proc_done = 1;
-static sys_sem_t g_maclib_sem_sleep;
-static int g_maclib_sleep_flag = 0;
-
-extern maclib_func_t *maclib_func_p;
-
-extern void rda_critical_sec_start(void);
-extern void rda_critical_sec_end(void);
-extern void wland_set_sta_sleep(unsigned char is_sleep);
-/**
- * Functions
- */
-/* maybe called in isr, should not use "printf", "malloc" */
-void mbed_event_handle_cb(unsigned int event)
-{
-    static unsigned int sec_cnt = 0;
-    MACLIB_EVENT_HANDLE_T type = (MACLIB_EVENT_HANDLE_T)event;
-    if ((maclib_task_run == 0) && (MACLIB_EVENT_CLEANUP != type)) {
-        mbed_error_printf("evntHndlCb_nulldata\r\n");
-        return;
-    }
-    switch(type) {
-        case MACLIB_EVENT_PEND:
-            rda_critical_sec_start();
-            g_event_num++;
-            if((1 == g_event_num) && (1 == g_event_proc_done)) {
-                maclib_msg_t msg;
-#if MACLIB_TASK_DEBUG
-                mbed_error_printf("#1-1,%d(%08X)\r\n", g_event_num, __get_xPSR());
-#endif
-                msg.type = MACLIB_MSG_EVNT_HNDL;
-                msg.msg = NULL;
-                rda_mail_put(maclib_mbox, (void*)&msg, 0);
-#if MACLIB_TASK_DEBUG
-                mbed_error_printf("#1-2\r\n");
-#endif
-            }
-            rda_critical_sec_end();
-            break;
-        case MACLIB_EVENT_PROCESS:
-#if 1
-            rda_critical_sec_start();
-            g_event_num--;
-            if(0 > g_event_num) {
-                mbed_error_printf("event handle err\r\n");
-                g_event_num = 0;
-            }
-            rda_critical_sec_end();
-#if MACLIB_TASK_DEBUG
-            mbed_error_printf("#3,%d\r\n",g_event_num);
-#endif
-#endif
-            break;
-        case MACLIB_EVENT_CLEANUP:
-#if MACLIB_TASK_DEBUG
-            mbed_error_printf("event cleanup\r\n");
-#endif
-            rda_critical_sec_start();
-            g_event_num = 0;
-            rda_critical_sec_end();
-            break;
-        default:
-            break;
-    }
-}
-
-void mbed_mltask_sleep_cb(void)
-{
-    g_maclib_sleep_flag = 1;
-    sys_arch_sem_wait(&g_maclib_sem_sleep, 0);
-}
-
-void mbed_mltask_wakeup_cb(void)
-{
-    rda_critical_sec_start();
-    if (1 == g_maclib_sleep_flag) {
-        g_maclib_sleep_flag = 0;
-        sys_sem_signal(&g_maclib_sem_sleep);
-    }
-    rda_critical_sec_end();
-}
-
-void maclib_check_status(void)
-{
-    rda_critical_sec_start();
-    if (1 == g_maclib_sleep_flag) {
-        if(*((unsigned int *)0x40020580U) & (0x01UL << 2)) {
-            mbed_mltask_wakeup_cb();
-        }
-    }
-    rda_critical_sec_end();
-}
-
-int maclib_is_sleep_allowed(void)
-{
-    return g_maclib_sleep_flag;
-}
-
-void maclib_task(void *pvParameters)
-{
-    int ret;
-#if 0 
-    sleep_entry_t maclib_sleep_entry = {
-        wland_set_sta_sleep,
-        maclib_is_sleep_allowed,
-        maclib_check_status
-    };
-#endif
-    sys_sem_new(&g_maclib_sem_sleep, 0);
-    //sleep_entry_register(&maclib_sleep_entry);
-
-    maclib_mbox = (void *)rda_mail_create(8, sizeof(maclib_msg_t));//ret = sys_mbox_new(&(maclib_mbox), 8);
-    if(NULL == maclib_mbox) {
-        mbed_error_printf("msgbox init err!\r\n");
-        goto mac_lib_err;
-    }
-#if MACLIB_TASK_DEBUG
-    LWIP_DEBUGF(NETIF_DEBUG,"#mbox new\r\n");
-#endif
-    maclib_task_run = 1;
-    while(1) {
-        maclib_msg_t msg;
-        osStatus_t status = rda_mail_get(maclib_mbox, (void *)&msg, osWaitForever);
-        if(osOK != status) {
-            mbed_error_printf("ml_task: invalid msg ret=%08X\r\n", status);
-            continue;
-        }
-        switch(msg.type) {
-            case MACLIB_MSG_EVNT_HNDL: {
-                rda_critical_sec_start();
-                g_event_proc_done = 0;
-                rda_critical_sec_end();
-#if MACLIB_TASK_DEBUG
-                mbed_error_printf("#get event %d\r\n", g_event_num);
-#endif
-                maclib_func_p->ml_tasklet();
-#if MACLIB_TASK_DEBUG
-                mbed_error_printf("#5\r\n");
-#endif
-                rda_critical_sec_start();
-#if 0
-                g_event_num--;
-                if(0 > g_event_num) {
-                    mbed_error_printf("event handle err\r\n");
-                } else
-#endif
-                g_event_proc_done = 1;
-                if(0 < g_event_num) {
-#if MACLIB_TASK_DEBUG
-                    mbed_error_printf("#2-1\r\n");
-#endif
-                    rda_mail_put(maclib_mbox, (void*)&msg, 0);
-#if MACLIB_TASK_DEBUG
-                    mbed_error_printf("#2-2\r\n");
-#endif
-                }
-                rda_critical_sec_end();
-#if MACLIB_TASK_DEBUG
-                mbed_error_printf("#pDone\r\n");
-#endif
-                break;
-            }
-            default:
-                break;
-        }
-#if MACLIB_TASK_DEBUG
-            mbed_error_printf("#4\r\n");
-#endif
-    }
-
-mac_lib_err:
-    LWIP_DEBUGF(NETIF_DEBUG,"MACLib exit!\r\n");
-    osDelay(osWaitForever);
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda5991h_wland.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda5991h_wland.c
deleted file mode 100644
index d51064e582..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda5991h_wland.c
+++ /dev/null
@@ -1,530 +0,0 @@
-/* Copyright (c) 2019 ARM Limited
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/******************************************************************************
- * @file     rda5991h_wland.c
- * @brief    RDA5991H wlan driver for LWIP
- * @version: V1.0
- * @date:    25. July 2016
- *
- * @note
- * Copyright (C) 2009 ARM Limited. All rights reserved.
- *
- * @par
- * ARM Limited (ARM) is supplying this software for use with Cortex-M
- * processor based microcontrollers.  This file can be freely distributed
- * within development tools that are supporting such ARM based processors.
- *
- * @par
- * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
- * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
- * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
- * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
- *
- ******************************************************************************/
-
-#include "lwip/opt.h"
-#include "lwip/sys.h"
-#include "lwip/def.h"
-#include "lwip/mem.h"
-#include "lwip/pbuf.h"
-#include "lwip/stats.h"
-#include "lwip/snmp.h"
-#include "lwip/tcpip.h"
-#include "netif/etharp.h"
-#include "sys_arch.h"
-#include "rda5991h_wland.h"
-#include "cmsis.h"
-#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
-#include "entropy_poll.h"
-#else
-#include "trng_api.h"
-#endif
-#include "gpio_api.h"
-#include "gpio_irq_api.h"
-#include "maclib_task.h"
-#include "rda_sys_wrapper.h"
-#include <ctype.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-
-/* Global variables */
-rda_enetdata_t r91h_wifidata;
-
-int wland_dbg_dump = WLAND_DBG_DUMP;
-int wland_dbg_level = WLAND_DBG_LEVEL;
-int wpa_dbg_dump = WPA_DBG_DUMP;
-int wpa_dbg_level = WPA_DBG_LEBEL;
-int wlandlib_dbg_level = WLANDLIB_DBG_LEVEL;
-int hut_dbg_dump = HUT_DBG_DUMP;
-
-//#define CONFIG_DISABLE_ALL_INT
-#define CRI_SEC_START_PRI_LEVEL 0xF8
-#define CRI_SEC_END_PRI_LEVEL   0x00
-static unsigned int g_critical_sec_counter = 0U;
-#if defined(CONFIG_DISABLE_ALL_INT)
-static unsigned int g_critical_ctxt_saved  = 0U;
-#endif /* CONFIG_DISABLE_ALL_INT */
-void *packet_rx_queue;
-
-/* Function statements */
-void r91h_wifiif_input(struct netif *netif, u8_t *data, u32_t len, int idx);
-void mbed_mac_address(char *mac);
-
-/** \brief  Driver transmit and receive thread priorities
- *
- * Thread priorities for receive thread and TX cleanup thread. Alter
- * to prioritize receive or transmit bandwidth. In a heavily loaded
- * system or with LEIP_DEBUG enabled, the priorities might be better
- * the same. */
-#define RX_PRIORITY   (osPriorityNormal)
-#define TX_PRIORITY   (osPriorityNormal)
-#define PHY_PRIORITY  (osPriorityNormal)
-
-void rda_netif_down(int netif)
-{
-    if (netif == 0) {
-        netif_set_down(r91h_wifidata.netif_sta);
-    } else {
-        netif_set_down(r91h_wifidata.netif_ap);
-    }
-}
-
-void rda_netif_link_down(int netif)
-{
-    rda_msg msg;
-    msg.type = 1;
-    msg.arg1 = 0;
-    rda_mail_put(packet_rx_queue, (void*)&msg, 0);
-}
-
-void rda_netif_up(int netif)
-{
-    if (netif == 0) {
-        netif_set_up(r91h_wifidata.netif_sta);
-    } else {
-        netif_set_up(r91h_wifidata.netif_ap);
-    }
-}
-
-void rda_netif_link_up(int netif)
-{
-    rda_msg msg;
-    msg.type = 1;
-    msg.arg1 = 1;
-    rda_mail_put(packet_rx_queue, (void*)&msg, 0);
-    return;
-}
-
-void rda_netif_input(u8_t *data, u32_t len, int idx, int netif)
-{
-    if (netif == 0) {
-        r91h_wifiif_input(r91h_wifidata.netif_sta, data, len, idx++);
-    } else {
-        r91h_wifiif_input(r91h_wifidata.netif_ap, data, len, idx++);
-    }
-}
-
-void rda_get_macaddr(u8_t *macaddr, int mode)
-{
-    mbed_mac_address((char *)macaddr);
-    if (mode == 1) {
-        if(macaddr[0] & 0x04) {
-           macaddr[0] &= 0xFB;
-        } else {
-           macaddr[0] |= 0x04;
-        }
-    }
-    return;
-}
-
-void rda_critical_sec_start(void)
-{
-    if (__get_IPSR() == 0U) {
-        if (0U == g_critical_sec_counter) {
-#if defined(CONFIG_DISABLE_ALL_INT)
-            g_critical_ctxt_saved = __disable_irq();
-#else  /* CONFIG_DISABLE_ALL_INT */
-            __set_BASEPRI(CRI_SEC_START_PRI_LEVEL);
-#endif /* CONFIG_DISABLE_ALL_INT */
-        }
-        g_critical_sec_counter++;
-    }
-}
-
-void rda_critical_sec_end(void)
-{
-    if (__get_IPSR() == 0U) {
-        g_critical_sec_counter--;
-        if (0U == g_critical_sec_counter) {
-#if defined(CONFIG_DISABLE_ALL_INT)
-            __set_PRIMASK(g_critical_ctxt_saved);
-#else  /* CONFIG_DISABLE_ALL_INT */
-            __set_BASEPRI(CRI_SEC_END_PRI_LEVEL);
-#endif /* CONFIG_DISABLE_ALL_INT */
-        }
-    }
-}
-
-unsigned int rda_critical_sec_counter_get(void)
-{
-    if (__get_IPSR() == 0U) {
-        return g_critical_sec_counter;
-    } else {
-        return 0xFFFFFFFF;
-    }
-}
-
-void rda_critical_sec_start_resume(unsigned int cnt)
-{
-    unsigned int i = 0;
-    for(i=0; i<cnt; i++) {
-        rda_critical_sec_start();
-    }
-}
-
-unsigned int rda_critical_sec_end_all(void)
-{
-    unsigned int ret = g_critical_sec_counter;
-    while(g_critical_sec_counter !=0 ) {
-        rda_critical_sec_end();
-    }
-    return ret;
-}
-
-void * rda_create_interrupt(unsigned int vec, unsigned int pri, void *isr)
-{
-    NVIC_SetPriority((IRQn_Type)vec, (uint32_t) pri);
-    NVIC_SetVector((IRQn_Type)vec, (uint32_t) isr);
-
-    return NULL;
-}
-
-void rda_delete_interrupt(unsigned int vec)
-{
-    NVIC_SetVector((IRQn_Type)vec, 0);
-}
-
-void rda_enable_interrupt(unsigned int vec)
-{
-    NVIC_EnableIRQ((IRQn_Type)vec);
-}
-
-void rda_disable_interrupt(unsigned int vec)
-{
-    NVIC_DisableIRQ((IRQn_Type)vec);
-}
-
-/** \brief  Allocates a pbuf and returns the data from the incoming packet.
- *
- *  \param[in] netif the lwip network interface structure
- *  \param[in] idx   index of packet to be read
- *  \return a pbuf filled with the received packet (including MAC header)
- */
-static struct pbuf *r91h_low_level_input(struct netif *netif, u8_t *data, u32_t len, int idx)
-{
-    struct pbuf *p, *q;
-    u16_t index = 0;
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_input enter, rxlen:%d\n", len));
-
-    /* Obtain the size of the packet and put it into the "len"
-     variable. */
-    if(!len) {
-        return NULL;
-    }
-
-#if ETH_PAD_SIZE
-    len += ETH_PAD_SIZE; /* allow room for Ethernet padding */
-#endif
-
-    /* We allocate a pbuf chain of pbufs from the pool. */
-    p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL);
-
-    if (p != NULL) {
-
-#if ETH_PAD_SIZE
-        pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
-        /* We iterate over the pbuf chain until we have read the entire
-         * packet into the pbuf. */
-        for (q = p; q != NULL; q = q->next) {
-            /* Read enough bytes to fill this pbuf in the chain. The
-            * available data in the pbuf is given by the q->len
-            * variable.
-            * This does not necessarily have to be a memcpy, you can also preallocate
-            * pbufs for a DMA-enabled MAC and after receiving truncate it to the
-            * actually received size. In this case, ensure the tot_len member of the
-            * pbuf is the sum of the chained pbuf len members.
-            */
-            /* load rx data from 96 to local mem_pool */
-            MEMCPY(q->payload, &data[index], q->len);
-            index += q->len;
-
-            if (index >= len) {
-                break;
-            }
-        }
-
-#if ETH_PAD_SIZE
-        pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
-        LINK_STATS_INC(link.recv);
-    } else {
-        /* Drop this packet */
-        LWIP_DEBUGF(NETIF_DEBUG, ("low_level_input pbuf_alloc fail, rxlen:%d\n", len));
-        LINK_STATS_INC(link.memerr);
-        LINK_STATS_INC(link.drop);
-
-        return NULL;
-    }
-
-    return p;
-}
-
-/** \brief  Attempt to read a packet from the EMAC interface.
- *
- *  \param[in] netif the lwip network interface structure
- *  \param[in] idx   index of packet to be read
- */
-void r91h_wifiif_input(struct netif *netif, u8_t *data, u32_t len, int idx)
-{
-    rda_msg msg;
-    msg.type = 0;
-    msg.arg1 = (int)data;
-    msg.arg2 = len;
-    rda_mail_put(packet_rx_queue, (void*)&msg, 0);
-    return;
-}
-
-/** \brief  Low level init of the MAC and PHY.
- *
- *  \param[in]      netif  Pointer to LWIP netif structure
- */
-
-static err_t low_level_init(struct netif *netif)
-{
-    static int init_flag = 0;
-    if (init_flag == 0) {
-        wland_reg_func();
-        init_flag = 1;
-    }
-    return ERR_OK;
-}
-
-/**
- * This function is the ethernet packet send function. It calls
- * etharp_output after checking link status.
- *
- * \param[in] netif the lwip network interface structure for this enetif
- * \param[in] q Pointer to pbug to send
- * \param[in] ipaddr IP address
- * \return ERR_OK or error code
- */
-err_t rda91h_etharp_output(struct netif *netif, struct pbuf *q, const ip_addr_t *ipaddr)
-{
-  /* Only send packet is link is up */
-    if (netif->flags & NETIF_FLAG_LINK_UP)
-        return etharp_output(netif, q, ipaddr);
-
-    return ERR_CONN;
-}
-
-/** \brief  Low level output of a packet. Never call this from an
- *          interrupt context, as it may block until TX descriptors
- *          become available.
- *
- *  \param[in] netif the lwip network interface structure for this netif
- *  \param[in] p the MAC packet to send (e.g. IP packet including MAC addresses and type)
- *  \return ERR_OK if the packet could be sent or an err_t value if the packet couldn't be sent
- */
-static err_t rda91h_low_level_output(struct netif *netif, struct pbuf *p)
-{
-    struct pbuf *q;
-
-    /* rda5996 initiate transfer */
-    u32_t actual_txlen = 0;
-    u8_t **data;
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output enter, p:%08x\n", p));
-
-#if ETH_PAD_SIZE
-    pbuf_header(p, -ETH_PAD_SIZE); /* drop the padding word */
-#endif
-
-    data = (void*)wland_get_databuf();
-
-    if(data == NULL){
-        LWIP_DEBUGF(NETIF_DEBUG, ("rda91h_low_level_output, no PKT buf\r\n"));
-        return ERR_BUF;
-    }
-
-    for(q = p; q != NULL; q = q->next)
-    {
-        /* Send the data from the pbuf to the interface, one pbuf at a
-           time. The size of the data in each pbuf is kept in the ->len
-           variable. */
-        MEMCPY(&((*data)[actual_txlen+2]), q->payload, q->len);//reserve wid header length
-        actual_txlen += q->len;
-        if(actual_txlen > 1514 || actual_txlen > p->tot_len)
-        {
-            LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output err, actual_txlen:%d, tot_len%d\n",
-                    actual_txlen, p->tot_len));
-            return ERR_BUF;
-        }
-    }
-
-    /* Signal rda5996 that packet should be sent */
-    if(actual_txlen == p->tot_len)
-    {
-        if(netif->name[0] == 's' && netif->name[1] == 't') {
-            wland_txip_data((void*)data, actual_txlen, 0);
-        } else if(netif->name[0] == 'a' && netif->name[1] == 'p') {
-            wland_txip_data((void*)data, actual_txlen, 1);
-        }
-
-#if ETH_PAD_SIZE
-        pbuf_header(p, ETH_PAD_SIZE); /* reclaim the padding word */
-#endif
-
-        LINK_STATS_INC(link.xmit);
-
-        return ERR_OK;
-    }
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output pkt len mismatch, actual_txlen:%d, tot_len%d\n",
-            actual_txlen, p->tot_len));
-
-
-    return ERR_BUF;
-}
-
-/**
- * Should be called at the beginning of the program to set up the
- * network interface.
- *
- * This function should be passed as a parameter to netif_add().
- *
- * @param[in] netif the lwip network interface structure for this netif
- * @return ERR_OK if the loopif is initialized
- *         ERR_MEM if private data couldn't be allocated
- *         any other err_t on error
- */
-err_t wifi_arch_enetif_init(struct netif *netif)
-{
-    err_t err;
-    static int thread_init_flag = 0;
-    LWIP_ASSERT("netif != NULL", (netif != NULL));
-
-    if (*((int *)netif->state) == 0) {
-        r91h_wifidata.netif_sta = netif;
-        netif->name[0] = 's';
-        netif->name[1] = 't';
-#if LWIP_NETIF_HOSTNAME
-        /* Initialize interface hostname */
-        if(netif->hostname == NULL)
-            netif->hostname = "lwipr91h_sta";
-#endif /* LWIP_NETIF_HOSTNAME */
-        rda_get_macaddr((u8_t *)(netif->hwaddr), 0);
-    } else if(*((int *)netif->state) == 1) {
-        r91h_wifidata.netif_ap = netif;
-        netif->name[0] = 'a';
-        netif->name[1] = 'p';
-#if LWIP_NETIF_HOSTNAME
-       /* Initialize interface hostname */
-        if(netif->hostname == NULL)
-            netif->hostname = "lwipr91h_ap";
-#endif /* LWIP_NETIF_HOSTNAME */
-        rda_get_macaddr((u8_t  *)(netif->hwaddr), 1);
-    }
-
-    netif->hwaddr_len = ETHARP_HWADDR_LEN;
-
-    /* maximum transfer unit */
-    netif->mtu = 1500;
-
-    /* device capabilities */
-    // TODOETH: check if the flags are correct below
-    netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
-
-    /* Initialize the hardware */
-    netif->state = &r91h_wifidata;
-    err = low_level_init(netif);
-    if (err != ERR_OK)
-        return err;
-
-    netif->output = rda91h_etharp_output;
-    netif->linkoutput = rda91h_low_level_output;
-    if(thread_init_flag == 0){
-        /* PHY monitoring task */
-        sys_thread_new("maclib_thread", maclib_task, netif->state, DEFAULT_THREAD_STACKSIZE*8, PHY_PRIORITY);
-        sys_thread_new("wland_thread", wland_task, NULL, DEFAULT_THREAD_STACKSIZE*5, PHY_PRIORITY);
-        /* Allow the PHY task to detect the initial link state and set up the proper flags */
-        osDelay(10);
-        thread_init_flag = 1;
-    }
-    return ERR_OK;
-}
-
-unsigned char rda_mac_addr[6] = "\0";
-static int is_available_mac_addr(unsigned char *mac_addr)
-{
-    if (mac_addr[0]==0 && mac_addr[1]==0 && mac_addr[2]==0 &&
-        mac_addr[3]==0 && mac_addr[4]==0 && mac_addr[5]==0)
-        return 0;
-    if (mac_addr[0]&0x1)
-        return 0;
-    return 1;
-}
-static void rda_get_macaddr_from_flash(unsigned char *macaddr)
-{
-    int ret;
-    if (!mac_is_valid((char *)rda_mac_addr)) {
-        ret = rda5981_flash_read_mac_addr(rda_mac_addr);
-        if ((ret!=0) || (is_available_mac_addr(rda_mac_addr)==0)) {
-#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
-            unsigned int out_len;
-            ret = mbedtls_hardware_poll(NULL, rda_mac_addr, 6, &out_len);
-            if (6 != out_len) {
-                LWIP_DEBUGF(NETIF_DEBUG, ("out_len err:%d\n", out_len));
-            }
-#else
-            ret = rda_trng_get_bytes(rda_mac_addr, 6);
-#endif
-            rda_mac_addr[0] &= 0xfe;    /* clear multicast bit */
-            rda_mac_addr[0] |= 0x02;    /* set local assignment bit (IEEE802) */
-            rda5981_flash_write_mac_addr(rda_mac_addr);
-        }
-    }
-    memcpy(macaddr, rda_mac_addr, 6);
-}
-void mbed_mac_address(char *mac)
-{
-    mac[0] = 0xD6;
-    mac[1] = 0x71;
-    mac[2] = 0x36;
-    mac[3] = 0x60;
-    mac[4] = 0xD8;
-#if !MBED_CONF_APP_ECHO_SERVER
-    mac[5] = 0xF4;
-#else
-    mac[5] = 0xF3;
-#endif
-    return;
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda_sys_wrapper.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda_sys_wrapper.c
deleted file mode 100644
index 07781ffc0c..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/rda_sys_wrapper.c
+++ /dev/null
@@ -1,453 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#if 1
-#include "sys_arch.h"
-#include "cmsis_os.h"
-#include "cmsis_os2.h"
-#include "lwip/sys.h"
-#include "rtx_lib.h"
-
-#include <stdio.h>
-#include <string.h>
-#include "mbed_assert.h"
-#define NO_ERR  0
-#define ERR     -1
-
-//#define RDA_SYS_DEBUG
-#ifdef RDA_SYS_DEBUG
-#define RDA_SYS_PRINT(fmt, ...) do {\
-            printf(fmt, ##__VA_ARGS__);\
-    } while (0)
-#else
-#define RDA_SYS_PRINT(fmt, ...)
-#endif
-
-
-/* Alarm */
-// Timer definitions
-#define osTimerInvalid  0
-#define osTimerStopped  1
-#define osTimerRunning  2
-#if 0
-// Timer structures, same as os_timer_cb(rt_CMSIS.c)
-typedef struct rda_ostmr_cb {
-    struct rda_ostmr_cb *next;                    // Pointer to next active Timer
-    uint8_t             state;                    // Timer State
-    uint8_t              type;                    // Timer Type (Periodic/One-shot)
-    uint16_t         reserved;                    // Reserved
-    uint32_t             tcnt;                    // Timer Delay Count
-    uint32_t             icnt;                    // Timer Initial Count
-    void                 *arg;                    // Timer Function Argument
-    const osTimerDef_t *timer;                    // Pointer to Timer definition
-} rda_ostmr_cb_t;
-#endif
-//#define USING_STDLIB
-
-#if !defined(USING_STDLIB)
-typedef struct rda_tmr_node {
-    mbed_rtos_storage_timer_t _obj_mem;
-} rda_tmr_node_t;
-
-typedef struct rda_tmr_ctrl {
-    unsigned char *buff;
-    unsigned char *state;
-    unsigned char max_node_num;
-    unsigned char node_size;
-    unsigned char node_cntr;
-    unsigned char last_freed_node_idx;
-} rda_tmr_ctrl_t;
-
-#define MAX_ALARM_NUM       (28)
-#define WORD_ALIGN(n)       (((n) + 0x03UL) & ~0x03UL)
-#define MAX_ALARM_STAT_SIZE WORD_ALIGN(MAX_ALARM_NUM >> 3)
-#define MAX_ALARM_MEM_SIZE  (MAX_ALARM_NUM * WORD_ALIGN(sizeof(mbed_rtos_storage_timer_t)) + MAX_ALARM_STAT_SIZE)
-
-unsigned long g_alarm_buf[WORD_ALIGN(MAX_ALARM_MEM_SIZE) >> 2] = {0};
-rda_tmr_ctrl_t g_alarm_ctrl = {
-    (unsigned char *)g_alarm_buf + MAX_ALARM_STAT_SIZE,
-    (unsigned char *)g_alarm_buf,
-    MAX_ALARM_NUM,
-    WORD_ALIGN(sizeof(mbed_rtos_storage_timer_t)),
-    0U,
-    0U
-};
-
-__STATIC_INLINE unsigned char get_node_state(unsigned char *buf, unsigned char idx)
-{
-    unsigned char state, ofst;
-    ofst = (idx & 0x07U);
-    buf += (idx >> 3);
-    state = (*buf >> ofst) & 0x01U;
-    return state;
-}
-
-__STATIC_INLINE void set_node_state(unsigned char *buf, unsigned char idx, unsigned char state)
-{
-    unsigned char ofst, tmp;
-    ofst = (idx & 0x07U);
-    buf += (idx >> 3);
-    tmp = *buf & (~(0x01U << ofst));
-    *buf = tmp | (((state & 0x01U) << ofst));
-}
-
-static rda_tmr_node_t *get_tmr_node(void)
-{
-    rda_tmr_node_t *node = NULL;
-    unsigned char idx = g_alarm_ctrl.last_freed_node_idx;
-    if ((idx < g_alarm_ctrl.max_node_num) && (0U == get_node_state(g_alarm_ctrl.state, idx))) {
-        set_node_state(g_alarm_ctrl.state, idx, 1U);
-        node = (rda_tmr_node_t *)(g_alarm_ctrl.buff + idx * g_alarm_ctrl.node_size);
-        g_alarm_ctrl.node_cntr++;
-    } else {
-        for (idx = 0U; idx < g_alarm_ctrl.max_node_num; idx++) {
-            if(0U == get_node_state(g_alarm_ctrl.state, idx)) {
-                set_node_state(g_alarm_ctrl.state, idx, 1U);
-                node = (rda_tmr_node_t *)(g_alarm_ctrl.buff + idx * g_alarm_ctrl.node_size);
-                g_alarm_ctrl.node_cntr++;
-                break;
-            }
-        }
-    }
-    return node;
-}
-
-static void put_tmr_node(rda_tmr_node_t *node)
-{
-    unsigned char *node_buf = (unsigned char *)node;
-    unsigned char idx = (node_buf - g_alarm_ctrl.buff) / g_alarm_ctrl.node_size;
-    if ((node_buf > g_alarm_ctrl.buff) && (idx < g_alarm_ctrl.max_node_num) &&
-        (1U == get_node_state(g_alarm_ctrl.state, idx))) {
-        set_node_state(g_alarm_ctrl.state, idx, 0U);
-        g_alarm_ctrl.node_cntr--;
-        g_alarm_ctrl.last_freed_node_idx = idx;
-    }
-}
-#endif /* !USING_STDLIB */
-
-/**
- * @brief     : get current time in units of micro second
- * @param[in] :
- * @param[out]:
- * @return    : return time value with uint32 type
- */
-unsigned long rda_get_cur_time_ms(void)
-{
-    return sys_now();
-}
-
-/**
- * @brief     : create an alarm with given function, return timer handle
- * @param[in] : func(callback)/data(pass to func)/mode(once or periodic)
- * @param[out]:
- * @return    : return timer handle, a pointer to the timer structure, non-zero is valid
- */
-void * rda_alarm_create_v2(void *func, unsigned int data, unsigned int mode)
-{
-    osTimerId_t handle;
-    mbed_rtos_storage_timer_t* _obj_mem = NULL;
-    MBED_ASSERT(func != NULL);
-    osTimerAttr_t attr = { 0 };
-#if defined(USING_STDLIB)
-    _obj_mem = (mbed_rtos_storage_timer_t*)malloc(sizeof(mbed_rtos_storage_timer_t));
-#else  /* USING_STDLIB */
-    _obj_mem = (mbed_rtos_storage_timer_t*)get_tmr_node();
-#endif /* USING_STDLIB */
-    MBED_ASSERT(_obj_mem != NULL);
-    memset(_obj_mem, 0, sizeof(_obj_mem));
-    attr.cb_mem = _obj_mem;
-    attr.cb_size = sizeof(mbed_rtos_storage_timer_t);
-    //printf("hehehehe fun %p\r\n", func);
-    handle = osTimerNew((osTimerFunc_t)func, mode, (void *)data, &attr);
-    //printf("time cb %p handle %p\r\n", _obj_mem, handle);
-    MBED_ASSERT(handle != NULL);
-    return handle;
-}
-
-void * rda_alarm_create(void *func, unsigned int data)
-{
-    return rda_alarm_create_v2(func, data, osTimerOnce);
-}
-
-/**
- * @brief     : delete an alarm with given handle, then reset the handle
- * @param[in] : *handle(pointer to the timer structure)
- * @param[out]: **handle(address of the handle variable)
- * @return    :
- */
-int rda_alarm_delete(void **handle)
-{
-    if (NULL != *handle) {
-        osTimerId timer_id = (osTimerId)(*handle);
-        osStatus retval = osTimerDelete(timer_id);
-        if (osOK == retval) {
-#if defined(USING_STDLIB)
-            free(timer_id);
-#else  /* USING_STDLIB */
-            put_tmr_node((rda_tmr_node_t *)timer_id);
-#endif /* USING_STDLIB */
-            *handle = NULL;
-        } else {
-            RDA_SYS_PRINT("Delete alarm error: %d\r\n", retval);
-            return ERR;
-        }
-        return NO_ERR;
-    }
-    return ERR;
-}
-
-/**
- * @brief     : start an alarm, raise a function call after given timeout delay
- * @param[in] : handle(pointer to the timer structure)/timeout(micro second)
- * @param[out]:
- * @return    :
- */
-int rda_alarm_start(void *handle, unsigned int timeout_ms)
-{
-    if (NULL != handle) {
-        osTimerId timer_id = (osTimerId)handle;
-        osStatus retval = osTimerStart(timer_id, (uint32_t)timeout_ms);
-        if (osOK != retval) {
-            RDA_SYS_PRINT("Start alarm error: %d\r\n", retval);
-            return ERR;
-        }
-        return NO_ERR;
-    }
-    return ERR;
-}
-
-/**
- * @brief     : stop an alarm, will not raise a function call any more
- * @param[in] : handle(pointer to the timer structure)
- * @param[out]:
- * @return    :
- */
-int rda_alarm_stop(void *handle)
-{
-    if (NULL != handle) {
-        osTimerId timer_id = (osTimerId)handle;
-        os_timer_t *timer = osRtxTimerId(timer_id);
-        if(timer->state == osRtxTimerRunning){
-            osStatus retval = osTimerStop(timer_id);
-            if(osOK != retval) {
-                RDA_SYS_PRINT("Stop alarm error: %d\r\n", retval);
-                return ERR;
-            }
-        }
-        return NO_ERR;
-    }
-    return ERR;
-}
-
-
-
-/* Semaphore */
-void* rda_sem_create(unsigned int count)
-{
-    osSemaphoreId_t sem;
-    mbed_rtos_storage_semaphore_t *_obj_mem = (mbed_rtos_storage_semaphore_t*)malloc(sizeof(mbed_rtos_storage_semaphore_t));
-    osSemaphoreAttr_t attr = { 0 };
-    attr.name = "rda_unnamed_sem";
-    attr.cb_mem = _obj_mem;
-    attr.cb_size = sizeof(mbed_rtos_storage_semaphore_t);
-    sem = osSemaphoreNew(1, count, &attr);
-    MBED_ASSERT(sem != NULL);
-
-    return (void*)sem;
-}
-
-int rda_sem_wait(void* sem, unsigned int millisec)
-{
-    int res;
-
-    res = osSemaphoreWait(sem, millisec);
-    if (res > 0) {
-        return NO_ERR;
-    } else {
-        RDA_SYS_PRINT("rda_sem_wait error %d\r\n", res);
-        return ERR;
-    }
-}
-
-int rda_sem_release(void *sem)
-{
-    int res;
-
-    res = osSemaphoreRelease(sem);
-    if (res == 0) {
-        return NO_ERR;
-    } else {
-        RDA_SYS_PRINT("rda_sem_release error %d\r\n", res);
-        return ERR;
-    }
-}
-
-int rda_sem_delete(void *sem)
-{
-    int res;
-
-    res = osSemaphoreDelete(sem);
-    free(sem);
-    if (res == 0) {
-        return NO_ERR;
-    } else {
-        RDA_SYS_PRINT("rda_sem_delete error %d\r\n", res);
-        return ERR;
-    }
-}
-
-/* Mail */
-void* rda_mail_create(unsigned int msgcnt, unsigned int msgsize)
-{
-    unsigned int mq_size = msgcnt * (msgsize + sizeof(os_message_t));
-    osMessageQueueId_t msgq;
-    mbed_rtos_storage_msg_queue_t *_obj_mem = (mbed_rtos_storage_msg_queue_t*)malloc(sizeof(mbed_rtos_storage_msg_queue_t));
-    MBED_ASSERT(_obj_mem != NULL);
-    memset(_obj_mem, 0, sizeof(mbed_rtos_storage_msg_queue_t));
-    void *_mq_mem = (void *)malloc(mq_size);
-    MBED_ASSERT(_mq_mem != NULL);
-    memset(_mq_mem, 0, mq_size);
-    osMessageQueueAttr_t attr = { 0 };
-    attr.name = "rda_unnamed_message_queue";
-    attr.cb_mem = _obj_mem;
-    attr.cb_size = sizeof(mbed_rtos_storage_msg_queue_t);
-    attr.mq_mem = _mq_mem;
-    attr.mq_size = mq_size;
-    msgq = osMessageQueueNew(msgcnt, msgsize, &attr);
-    MBED_ASSERT(msgq != NULL);
-
-    return (void*)msgq;
-}
-
-int rda_mail_get(void *msgq, void *msg, unsigned int wait)
-{
-    int ret;
-    ret = osMessageQueueGet(msgq, msg, 0, wait);
-    return ret;
-}
-
-int rda_mail_put(void *msgq, void *msg, unsigned int wait)
-{
-    int ret;
-    ret = osMessageQueuePut(msgq, msg, 0, wait);
-    return ret;
-}
-
-/* Mutex */
-void* rda_mutex_create(void)
-{
-    osMutexId_t rdamutex;
-    osMutexAttr_t attr = { 0 };
-    mbed_rtos_storage_mutex_t *_obj_mem = (mbed_rtos_storage_mutex_t *)malloc(sizeof(mbed_rtos_storage_mutex_t));
-    memset(_obj_mem, 0, sizeof(mbed_rtos_storage_mutex_t));
-    attr.name = "rda_unnamed_mutex";
-    attr.cb_mem = _obj_mem;
-    attr.cb_size = sizeof(mbed_rtos_storage_mutex_t);
-    attr.attr_bits = osMutexRecursive | osMutexPrioInherit | osMutexRobust;
-    rdamutex = osMutexNew(&attr);
-    MBED_ASSERT(rdamutex != NULL);
-    return (void *)rdamutex;
-}
-
-int rda_mutex_wait(void *rdamutex, unsigned int millisec)
-{
-    osMutexId_t mutex = (osMutexId_t)rdamutex;
-    osStatus res;
-    res = osMutexWait(mutex, millisec);
-    if (res == osOK) {
-        return NO_ERR;
-    } else {
-        return ERR;
-    }
-}
-
-int rda_mutex_realease(void *rdamutex)
-{
-    osMutexId_t mutex = (osMutexId_t)rdamutex;
-    osStatus res;
-    res = osMutexRelease(mutex);
-    if(res == osOK) {
-        return NO_ERR;
-    } else {
-        return ERR;
-    }
-}
-
-int rda_mutex_delete(void *rdamutex)
-{
-    osMutexId_t mutex = (osMutexId_t)rdamutex;
-    osStatus res;
-    res = osMutexDelete(mutex);
-    free(mutex);
-    if (res == osOK) {
-        return NO_ERR;
-    } else {
-        return ERR;
-    }
-}
-
-/* Thread */
-void* rda_thread_new(const char *pcName,
-                            void (*thread)(void *arg),
-                            void *arg, int stacksize, int priority)
-{
-    osThreadId_t     id;
-    osThreadAttr_t   _attr = { 0 };
-    mbed_rtos_storage_thread_t *_obj_mem = (mbed_rtos_storage_thread_t *)malloc(sizeof(mbed_rtos_storage_thread_t));
-    MBED_ASSERT(_obj_mem != NULL);
-    memset(_obj_mem, 0, sizeof(mbed_rtos_storage_thread_t));
-    _attr.priority = priority;
-    _attr.stack_size = stacksize;
-    _attr.name = pcName ? pcName : "rda_unnamed_thread";
-    _attr.stack_mem = malloc(stacksize);
-    MBED_ASSERT(_attr.stack_mem != NULL);
-    _attr.cb_size = sizeof(mbed_rtos_storage_thread_t);
-    _attr.cb_mem = _obj_mem;
-    _attr.tz_module = 0;
-    
-    //Fill the stack with a magic word for maximum usage checking
-    for (uint32_t i = 0; i < (_attr.stack_size / sizeof(uint32_t)); i++) {
-        ((uint32_t *)_attr.stack_mem)[i] = 0xE25A2EA5;
-    }
-    id = osThreadNew(thread, arg, &_attr);
-    if (id == NULL){
-        free(_attr.stack_mem);
-        free(_attr.cb_mem);
-        RDA_SYS_PRINT("sys_thread_new create error\n");
-        return NULL;
-    }
-    return (void *)id;
-}
-
-int rda_thread_delete(void* id)
-{
-    osStatus ret;
-    unsigned int *stk = ((osRtxThread_t *)id)->stack_mem;
-    ret = osThreadTerminate(id);
-    free(id);
-    free(stk);
-    if (ret != osOK) {
-        return ERR;
-    }
-    return NO_ERR;
-}
-
-void* rda_thread_get_id(void)
-{
-    osThreadId id = osThreadGetId();
-    return (void*)id;
-}
-#endif
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash.c
deleted file mode 100644
index a2c0cd8ffa..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash.c
+++ /dev/null
@@ -1,1481 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "critical.h"
-#include "wland_flash.h"
-#include "wland_dbg.h"
-#include "rda5981_flash.h"
-#include "wland_flash_wp.h"
-
-#define MACDBG                          "%02x:%02x:%02x:%02x:%02x:%02x"
-#define MAC2STRDBG(ea)                  (ea)[0], (ea)[1], (ea)[2], (ea)[3], (ea)[4], (ea)[5]
-
-u32 flash_size = FLASH_SIZE;
-static u32 user_data_location = RDA5991H_USER_DATA_ADDR;
-static u32 third_parter_data_location = RDA5991H_3RDPARTER_DATA_ADDR;
-static u32 third_parter_data_len = RDA5991H_3RDPARTER_DATA_LEN;
-int rda5981_read_flash(u32 addr, char *buf, u32 len)
-{
-    int ret = 0;
-    char *temp_buf = NULL, *temp_buf_aligned;
-
-    addr &= (flash_size -1);
-    if (addr < RDA5991H_PARTITION_TABLE_END_ADDR-0x18000000) {
-        WLAND_DBG(ERROR, "couldn't read system data\n");
-        return -1;
-    }
-
-    if ((u32)buf % 4) {
-        temp_buf = malloc(len + 3);
-        if (temp_buf == NULL) {
-            ret = -1;
-            goto out;
-        }
-        if ((u32)temp_buf % 4) {
-            temp_buf_aligned = temp_buf + (4-(u32)temp_buf%4);
-        } else {
-            temp_buf_aligned = temp_buf;
-        }
-    } else {
-        temp_buf_aligned = buf;
-    }
-
-    core_util_critical_section_enter();
-    spi_flash_flush_cache();
-    SPI_FLASH_READ_DATA_FOR_MBED((void *)addr, temp_buf_aligned, len);
-    core_util_critical_section_exit();
-
-    if (temp_buf_aligned != buf) {
-        memcpy(buf, temp_buf_aligned, len);
-    }
-
-out:
-    if (temp_buf) {
-        free(temp_buf);
-    }
-
-    return ret;
-}
-
-void rda5981_spi_flash_erase_64KB_block(u32 addr)
-{
-    if (rda_ccfg_hwver() < 4) {
-        spi_wip_reset_2();
-        spi_write_reset_2();
-        WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, CMD_64KB_BLOCK_ERASE | (addr<<8));
-        wait_busy_down_2();
-        spi_wip_reset_2();
-    } else {
-        spi_wip_reset_4();
-        spi_write_reset_4();
-        WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, CMD_64KB_BLOCK_ERASE | (addr<<8));
-        wait_busy_down_4();
-        spi_wip_reset_4();
-    }
-}
-void rda5981_spi_erase_partition(void *src, u32 counts)
-{
-    u32 a4k, a64k, a64kend, a4kend, atmp;
-
-    if (counts > 0x00) {
-        a4k  = ((u32)src                          ) & (~((0x01UL << 12) - 0x01UL));
-        a64k = ((u32)src + (0x01UL << 16) - 0x01UL) & (~((0x01UL << 16) - 0x01UL));
-        a64kend = ((u32)src + counts                          ) & (~((0x01UL << 16) - 0x01UL));
-        a4kend  = ((u32)src + counts + (0x01UL << 12) - 0x01UL) & (~((0x01UL << 12) - 0x01UL));
-
-        for (atmp = a4k; atmp < a4kend; atmp += (0x01UL << 12)) {
-            if (a64kend > a64k) {
-                if (atmp == a64k) {
-                    for (; atmp < a64kend; atmp += (0x01UL << 16)) {
-                        core_util_critical_section_enter();
-                        rda5981_spi_flash_erase_64KB_block(atmp);
-                        core_util_critical_section_exit();
-                    }
-                    if (atmp == a4kend) {
-                        break;
-                    }
-                }
-            }
-            core_util_critical_section_enter();
-            rda5981_spi_flash_erase_4KB_sector(atmp);
-            core_util_critical_section_exit();
-        }
-    }
-}
-//@len must be 4k aligment
-int rda5981_erase_flash(u32 addr, u32 len)
-{
-    WLAND_DBG(INFO, "erase flash :%x:%x\n", addr, len);
-
-    addr &= (flash_size - 1);
-    if (addr < RDA5991H_PARTITION_TABLE_END_ADDR-0x18000000) {
-        WLAND_DBG(ERROR, "couldn't erase system data\n");
-        return -1;
-    }
-
-    if (len & (SECTOR_SIZE-1)) {
-        len = ((len+SECTOR_SIZE) & (~(SECTOR_SIZE-1)));
-    }
-    flash_wrtie_protect(addr);
-    rda5981_spi_erase_partition((void*)addr, len);
-    flash_wrtie_protect_all();
-    return 0;
-}
-
-//@len must be 256 aligment
-int rda5981_write_flash(u32 addr, char *buf, u32 len)
-{
-    int ret = 0;
-    u8 *temp_buf = NULL, *temp_buf_aligned;
-    u8 *check_buf = NULL;
-
-    addr &= (flash_size -1);
-    if (addr < RDA5991H_PARTITION_TABLE_END_ADDR-0x18000000) {
-        WLAND_DBG(ERROR, "couldn't write system data\n");
-        return -1;
-    }
-
-    if ((u32)buf % 4) {
-        temp_buf = malloc(len + 3);
-        if (temp_buf == NULL) {
-            goto out;
-        }
-        if ((u32)temp_buf % 4) {
-            temp_buf_aligned = temp_buf + (4-(u32)temp_buf%4);
-        } else {
-            temp_buf_aligned = temp_buf;
-        }
-        memcpy(temp_buf_aligned, buf, len);
-    } else {
-        temp_buf_aligned = (u8*)buf;
-    }
-    flash_wrtie_protect(addr);
-    core_util_critical_section_enter();
-    //RDA5991H_ERASE_FLASH(addr, len);
-    RDA5991H_WRITE_FLASH(addr, temp_buf_aligned, len);
-    core_util_critical_section_exit();
-    flash_wrtie_protect_all();
-
-#ifdef FLASH_READ_CHECK
-    if (ret == 0) {
-        check_buf = malloc(len);
-        rda5981_read_flash(addr, check_buf, len);
-        if (memcmp(buf, check_buf, len) == 0) {
-            ret = 0;
-        } else {
-            ret = -1;
-        }
-    }
-#endif /*FLASH_READ_CHECK*/
-
-out:
-    if (temp_buf) {
-        free(temp_buf);
-    }
-    if (check_buf) {
-        free(check_buf);
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-rda5991h_user_data wland_user_data;
-u8 read_flag = 0;
-int rda5981_write_user_data(u8 *data, u16 len, u32 flag)
-{
-    WLAND_DBG(INFO, "Enter, flag:0x%x\r\n", flag);
-
-    if (!read_flag) {
-        if (0 == rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data))) {
-            read_flag = 1;
-        } else {
-            return -1;
-        }
-    }
-
-    if ((wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) ||
-        strcmp((const char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG)) {
-        memset(&wland_user_data, 0xff, sizeof(wland_user_data));
-        wland_user_data.flag = flag;
-        strcpy((char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG);
-    }
-
-    wland_user_data.flag |= flag;
-
-    switch (flag) {
-    case RDA5991H_USER_DATA_FLAG_STA:
-        memcpy(&wland_user_data.sta_data, data,
-            min(sizeof(wland_user_data.sta_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_MAC:
-        memcpy(wland_user_data.mac_addr, data,
-            min(sizeof(wland_user_data.mac_addr), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PMK:
-        memcpy(wland_user_data.pmk, data,
-            min(sizeof(wland_user_data.pmk), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_IP:
-        memcpy(wland_user_data.ip, data,
-            min(RDA5991H_USER_DATA_IP_LENGTH, len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN:
-        memcpy(&wland_user_data.parter_data_len, data,
-            min(sizeof(wland_user_data.parter_data_len), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER:
-        memcpy(&wland_user_data.tx_power, data,
-            min(sizeof(wland_user_data.tx_power), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_XTAL_CAL:
-        memcpy(&wland_user_data.xtal_cal, data,
-            min(sizeof(wland_user_data.xtal_cal), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_RF:
-        memcpy(&wland_user_data.tx_power_rf, data,
-            min(sizeof(wland_user_data.tx_power_rf), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_GN:
-        memcpy(&wland_user_data.tx_power_phy_gn, data,
-            min(sizeof(wland_user_data.tx_power_phy_gn), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_B:
-        memcpy(&wland_user_data.tx_power_phy_b, data,
-            min(sizeof(wland_user_data.tx_power_phy_b), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_AP:
-        memcpy(&wland_user_data.ap_data, data,
-            min(sizeof(wland_user_data.ap_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_APNET:
-        memcpy(&wland_user_data.ap_net_data, data,
-            min(sizeof(wland_user_data.ap_net_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_DHCP:
-        memcpy(&wland_user_data.dhcp, data,
-            min(sizeof(wland_user_data.dhcp), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_UART:
-        memcpy(&wland_user_data.uart, data,
-            min(sizeof(wland_user_data.uart), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF:
-        memcpy(&wland_user_data.rf, data,
-            min(sizeof(wland_user_data.rf), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF_CHANNELS:
-        memcpy(&wland_user_data.rf_channels, data,
-            min(sizeof(wland_user_data.rf_channels), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY:
-        memcpy(&wland_user_data.phy, data,
-            min(sizeof(wland_user_data.phy), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY_CHANNELS:
-        memcpy(&wland_user_data.phy_channels, data,
-            min(sizeof(wland_user_data.phy_channels), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_OFFSET:
-        memcpy(&wland_user_data.tp_offset, data,
-            min(sizeof(wland_user_data.tp_offset), len));
-        break;
-    default:
-        return -1;
-    }
-    rda5981_erase_flash(user_data_location, sizeof(wland_user_data));
-    return rda5981_write_flash(user_data_location,
-        (char *)(&wland_user_data), sizeof(wland_user_data));
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_erase_user_data(u32 flag)
-{
-    if (!read_flag) {
-        read_flag = 1;
-        rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data));
-    }
-
-    if (wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) {//flash init is 0xffffffff
-        return -1;
-    }
-
-    if ((wland_user_data.flag & flag) == 0) {
-        return 0;
-    }
-
-    wland_user_data.flag &= (~flag);
-
-    if (wland_user_data.flag == 0) {
-        wland_user_data.flag = RDA5991H_USER_DATA_FLAG_UNINITIALIZED;
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_STA) {
-        memset(&wland_user_data.sta_data, 0xff,
-            sizeof(wland_user_data.sta_data));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_MAC) {
-        memset(wland_user_data.mac_addr, 0xff,
-            sizeof(wland_user_data.mac_addr));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_PMK) {
-        memset(wland_user_data.pmk, 0xff,
-            sizeof(wland_user_data.pmk));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_IP) {
-        memset(wland_user_data.ip, 0xff,
-            RDA5991H_USER_DATA_IP_LENGTH);
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN) {
-        memset(&wland_user_data.parter_data_len, 0xff,
-            sizeof(wland_user_data.parter_data_len));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_TX_POWER) {
-        memset(&wland_user_data.tx_power, 0xff,
-            sizeof(wland_user_data.tx_power));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_XTAL_CAL) {
-        memset(&wland_user_data.xtal_cal, 0xff,
-            sizeof(wland_user_data.xtal_cal));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_TX_POWER_RF) {
-        memset(&wland_user_data.tx_power_rf, 0xff,
-            sizeof(wland_user_data.tx_power_rf));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_GN) {
-        memset(&wland_user_data.tx_power_phy_gn, 0xff,
-            sizeof(wland_user_data.tx_power_phy_gn));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_B) {
-        memset(&wland_user_data.tx_power_phy_b, 0xff,
-            sizeof(wland_user_data.tx_power_phy_b));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_AP) {
-        memset(&wland_user_data.ap_data, 0xff,
-            sizeof(wland_user_data.ap_data));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_APNET) {
-        memset(&wland_user_data.ap_net_data, 0xff,
-            sizeof(wland_user_data.ap_net_data));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_DHCP) {
-        memset(&wland_user_data.dhcp, 0xff,
-            sizeof(wland_user_data.dhcp));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_UART) {
-        memset(&wland_user_data.uart, 0xff,
-            sizeof(wland_user_data.uart));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_RF) {
-        memset(&wland_user_data.rf, 0xff,
-            sizeof(wland_user_data.rf));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_RF_CHANNELS) {
-        memset(&wland_user_data.rf_channels, 0xff,
-            sizeof(wland_user_data.rf_channels));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_PHY) {
-        memset(&wland_user_data.phy, 0xff,
-            sizeof(wland_user_data.phy));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_PHY_CHANNELS) {
-        memset(&wland_user_data.phy_channels, 0xff,
-            sizeof(wland_user_data.phy_channels));
-    }
-    if (flag & RDA5991H_USER_DATA_FLAG_TX_POWER_OFFSET) {
-        memset(&wland_user_data.tp_offset, 0xff,
-            sizeof(wland_user_data.tp_offset));
-    }
-    rda5981_erase_flash(user_data_location, sizeof(wland_user_data));
-    return rda5981_write_flash(user_data_location,
-        (char *)(&wland_user_data), sizeof(wland_user_data));
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_read_user_data(u8 *data, u16 len, u32 flag)
-{
-    //rda5991h_user_data wland_user_data;
-    WLAND_DBG(INFO, "Enter, flag:0x%x\r\n", flag);
-
-    if (!read_flag) {
-        read_flag = 1;
-        rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data));
-    }
-
-    if (wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) {//flash init is 0xffffffff
-        return -1;
-    }
-    if (strcmp((const char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG)) {
-        return -2;
-    }
-    if ((wland_user_data.flag & flag) == 0) {
-        return -3;
-    }
-    switch (flag) {
-    case RDA5991H_USER_DATA_FLAG_STA:
-        memcpy(data, &wland_user_data.sta_data,
-            min(sizeof(wland_user_data.sta_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_MAC:
-        memcpy(data, wland_user_data.mac_addr,
-            min(sizeof(wland_user_data.mac_addr), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PMK:
-        memcpy(data, wland_user_data.pmk,
-            min(sizeof(wland_user_data.pmk), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_IP:
-        memcpy(data, wland_user_data.ip,
-            min(RDA5991H_USER_DATA_IP_LENGTH, len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN:
-        memcpy(data, &wland_user_data.parter_data_len,
-            min(sizeof(wland_user_data.parter_data_len), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER:
-        memcpy(data, &wland_user_data.tx_power,
-            min(sizeof(wland_user_data.tx_power), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_XTAL_CAL:
-        memcpy(data, &wland_user_data.xtal_cal,
-            min(sizeof(wland_user_data.xtal_cal), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_RF:
-        memcpy(data, &wland_user_data.tx_power_rf,
-            min(sizeof(wland_user_data.tx_power_rf), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_GN:
-        memcpy(data, &wland_user_data.tx_power_phy_gn,
-            min(sizeof(wland_user_data.tx_power_phy_gn), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_PHY_B:
-        memcpy(data, &wland_user_data.tx_power_phy_b,
-            min(sizeof(wland_user_data.tx_power_phy_b), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_AP:
-        memcpy(data, &wland_user_data.ap_data,
-            min(sizeof(wland_user_data.ap_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_APNET:
-        memcpy(data, &wland_user_data.ap_net_data,
-            min(sizeof(wland_user_data.ap_net_data), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_DHCP:
-        memcpy(data, &wland_user_data.dhcp,
-            min(sizeof(wland_user_data.dhcp), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_UART:
-        memcpy(data, &wland_user_data.uart,
-            min(sizeof(wland_user_data.uart), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF:
-        memcpy(data, &wland_user_data.rf,
-            min(sizeof(wland_user_data.rf), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF_CHANNELS:
-        memcpy(data, &wland_user_data.rf_channels,
-            min(sizeof(wland_user_data.rf_channels), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY:
-        memcpy(data, &wland_user_data.phy,
-            min(sizeof(wland_user_data.phy), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY_CHANNELS:
-        memcpy(data, &wland_user_data.phy_channels,
-            min(sizeof(wland_user_data.phy_channels), len));
-        break;
-    case RDA5991H_USER_DATA_FLAG_TX_POWER_OFFSET:
-        memcpy(data, &wland_user_data.tp_offset,
-            min(sizeof(wland_user_data.tp_offset), len));
-        break;
-    default:
-        return -1;
-    }
-    return 0;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_mac_addr(u8 *mac_addr)
-{
-    int ret;
-    WLAND_DBG(DEBUG, "Enter\r\n");
-    ret = rda5981_read_user_data(mac_addr, 6, RDA5991H_USER_DATA_FLAG_MAC);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read mac addr from flash fail\r\n");
-    } else {
-        WLAND_DBG(INFO, "Done(ret:%d)"MACDBG"\r\n", ret, MAC2STRDBG(mac_addr));
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_write_mac_addr(u8 *mac_addr)
-{
-    WLAND_DBG(INFO, "Enter"MACDBG"\r\n", MAC2STRDBG(mac_addr));
-    return rda5981_write_user_data(mac_addr, 6, RDA5991H_USER_DATA_FLAG_MAC);
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_uart(void)
-{
-    return rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_UART);
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_uart(u32 *uart)
-{
-    int ret;
-    WLAND_DBG(DEBUG, "Enter\r\n");
-    ret = rda5981_read_user_data((u8 *)uart, 4, RDA5991H_USER_DATA_FLAG_UART);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read uart setting from flash fail\r\n");
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_write_uart(u32 *uart)
-{
-    return rda5981_write_user_data((u8 *)uart, 4, RDA5991H_USER_DATA_FLAG_UART);
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_sta_data(void)
-{
-    int ret;
-    ret = rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_PMK |
-        RDA5991H_USER_DATA_FLAG_STA);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_sta_data(char *ssid, char *passwd)
-{
-    int ret;
-    wland_sta_data_t sta_data;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-
-    ret = rda5981_read_user_data((u8 *)&sta_data, sizeof(sta_data), RDA5991H_USER_DATA_FLAG_STA);
-    if (ret == 0) {
-        strcpy(ssid, sta_data.ssid);
-        strcpy(passwd, sta_data.key);
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-extern u8 *rda_get_bssinfo_pmk(void);
-extern u8 *rda_get_bssinfo_SSID(void);
-int rda5981_flash_write_sta_data(const char *ssid, const char *passwd)
-{
-    int ret = 0, ret1;
-    wland_sta_data_t sta_data;
-    u8 *pbss_info_pmk = NULL, *pbss_info_SSID = NULL;
-    pbss_info_pmk = rda_get_bssinfo_pmk();
-    pbss_info_SSID = rda_get_bssinfo_SSID();
-
-    WLAND_DBG(INFO, "Enter:ssid:%s,pw:%s, pmk:%02x %02x***\r\n",
-        ssid, passwd, pbss_info_pmk[0], pbss_info_SSID[1]);
-    if (strlen(ssid) == 0) {
-        WLAND_DBG(ERROR, "ssid is NULL\n");
-        return -1;
-    }
-
-    memset(&sta_data, 0xff, sizeof(sta_data));
-    strcpy(sta_data.ssid, ssid);
-    strcpy(sta_data.key, passwd);
-    if (pbss_info_pmk[0] && memcmp(pbss_info_SSID, ssid, 6)==0) {
-        ret = rda5981_write_user_data(pbss_info_pmk, sizeof(pbss_info_pmk), RDA5991H_USER_DATA_FLAG_PMK);
-    }
-    ret1 = rda5981_write_user_data((u8 *)&sta_data, sizeof(sta_data), RDA5991H_USER_DATA_FLAG_STA);
-    return ret || ret1;;
-}
-
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_dhcp_data(void)
-{
-    int ret;//, ret1;
-    //WLAND_DBG(INFO, "Enter\r\n");
-    ret = rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_DHCP);
-    //ret1 = rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_PMK);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_dhcp_data(unsigned int *fixip, unsigned int *ip, unsigned int *msk, unsigned int *gw)
-{
-    int ret;
-    wland_dhcp_t dhcp;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-
-    ret = rda5981_read_user_data((u8 *)&dhcp, sizeof(dhcp), RDA5991H_USER_DATA_FLAG_DHCP);
-    if (ret == 0) {
-        *fixip = dhcp.fixip;
-        *ip = dhcp.ip;
-        *msk = dhcp.msk;
-        *gw = dhcp.gw;
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_write_dhcp_data(unsigned int fixip, unsigned int ip, unsigned int msk, unsigned int gw)
-{
-    int ret = 0;
-    wland_dhcp_t dhcp;
-
-    memset(&dhcp, 0xff, sizeof(dhcp));
-    dhcp.fixip = fixip;
-    dhcp.ip = ip;
-    dhcp.msk = msk;
-    dhcp.gw = gw;
-    ret = rda5981_write_user_data((u8 *)&dhcp, sizeof(dhcp), RDA5991H_USER_DATA_FLAG_DHCP);
-    return ret;
-}
-
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_ap_data(void)
-{
-    int ret;
-    ret = rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_AP);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_write_ap_data(const char *ssid, const char *passwd, unsigned char channel)
-{
-    int ret = 0;
-    wland_ap_data_t ap_data;
-
-    if (strlen(ssid) == 0) {
-        WLAND_DBG(ERROR, "ssid is NULL\n");
-        return -1;
-    }
-
-    memset(&ap_data, 0xff, sizeof(ap_data));
-    strcpy(ap_data.ssid, ssid);
-    strcpy(ap_data.key, passwd);
-    ap_data.channel = channel;
-    ret = rda5981_write_user_data((u8 *)&ap_data, sizeof(ap_data), RDA5991H_USER_DATA_FLAG_AP);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_ap_data(char *ssid, char *passwd, unsigned char *channel)
-{
-    int ret;
-    wland_ap_data_t ap_data;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-
-    ret = rda5981_read_user_data((u8 *)&ap_data, sizeof(ap_data), RDA5991H_USER_DATA_FLAG_AP);
-    if (ret == 0) {
-        strcpy(ssid, ap_data.ssid);
-        strcpy(passwd, ap_data.key);
-        *channel = ap_data.channel;
-    }
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_erase_ap_net_data(void)
-{
-    int ret;
-    ret = rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_APNET);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_write_ap_net_data(unsigned int ip, unsigned int msk, unsigned int gw,
-        unsigned int dhcps, unsigned int dhcpe)
-{
-    int ret = 0;
-    wland_ap_net_data_t ap_net_data;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-
-    memset(&ap_net_data, 0xff, sizeof(ap_net_data));
-    ap_net_data.ip = ip;
-    ap_net_data.msk = msk;
-    ap_net_data.gw = gw;
-    ap_net_data.dhcps = dhcps;
-    ap_net_data.dhcpe = dhcpe;
-
-    ret = rda5981_write_user_data((u8 *)&ap_net_data, sizeof(ap_net_data), RDA5991H_USER_DATA_FLAG_APNET);
-    return ret;
-}
-
-/*
- * return 0:ok, else:error.
- */
-int rda5981_flash_read_ap_net_data(unsigned int *ip, unsigned int *msk, unsigned int *gw,
-        unsigned int *dhcps, unsigned int *dhcpe)
-{
-    int ret = 0;
-    wland_ap_net_data_t ap_net_data;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-
-    ret = rda5981_read_user_data((u8 *)&ap_net_data, sizeof(ap_net_data), RDA5991H_USER_DATA_FLAG_APNET);
-    if (ret == 0) {
-        *ip = ap_net_data.ip;
-        *msk = ap_net_data.msk;
-        *gw = ap_net_data.gw;
-        *dhcps = ap_net_data.dhcps;
-        *dhcpe = ap_net_data.dhcpe;
-    }
-    return ret;
-}
-
-
-int rda5981_flash_read_pmk(u8 *pmk)
-{
-    WLAND_DBG(INFO, "Enter\r\n");
-    return rda5981_read_user_data(pmk, 32, RDA5991H_USER_DATA_FLAG_PMK);
-}
-
-int rda5981_flash_read_ip_addr(u8 *ip_addr, u8 *server_addr)
-{
-    int ret;
-    u8 buf[RDA5991H_USER_DATA_IP_LENGTH];
-    WLAND_DBG(DEBUG, "Enter\r\n");
-    ret = rda5981_read_user_data(buf, RDA5991H_USER_DATA_IP_LENGTH, RDA5991H_USER_DATA_FLAG_IP);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read ip addr from flash fail\r\n");
-    } else {
-        memcpy(ip_addr, buf, 4);
-        memcpy(server_addr, buf+4, 4);
-        WLAND_DBG(INFO, "read ip:%u.%u.%u.%u\r\n", ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]);
-    }
-    return ret;
-}
-
-int rda5981_flash_write_ip_addr(u8 *ip_addr, u8 *server_addr)
-{
-    u8 buf[RDA5991H_USER_DATA_IP_LENGTH];
-    WLAND_DBG(INFO, "write:%u.%u.%u.%u\r\n", ip_addr[0], ip_addr[1], ip_addr[2], ip_addr[3]);
-    memcpy(buf, ip_addr, 4);
-    memcpy(buf+4, server_addr, 4);
-    return rda5981_write_user_data(buf, RDA5991H_USER_DATA_IP_LENGTH, RDA5991H_USER_DATA_FLAG_IP);
-}
-
-int rda5981_flash_read_3rdparter_data_length()
-{
-    int ret;
-    u32 data_len = 0;
-
-    WLAND_DBG(INFO, "Enter\r\n");
-    ret = rda5981_read_user_data((u8 *)(&data_len), 4, RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read parter data length from flash fail(%d)\r\n", ret);
-        return -1;
-    }
-    return data_len;
-}
-
-int rda5981_flash_read_3rdparter_data(u8 *buf, u32 buf_len)
-{
-    int ret;
-    u32 data_len = 0;
-
-    WLAND_DBG(INFO, "Enter: %u\r\n", buf_len);
-    ret = rda5981_read_user_data((u8 *)(&data_len), 4, RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read parter data length from flash fail(%d)\r\n", ret);
-        return -1;
-    }
-
-    if (buf_len < data_len)
-        WLAND_DBG(ERROR,  "The buf you prepared is to small(%u:%u)\r\n", buf_len, data_len);
-
-    data_len = min(buf_len, data_len);
-
-    ret = rda5981_read_flash(third_parter_data_location,
-        (char *)(buf), data_len);
-    if (ret) {
-        WLAND_DBG(ERROR,  "read parter data from flash fail(%d)\r\n", ret);
-        return -2;
-    }
-
-    return data_len;
-}
-
-int rda5981_flash_erase_3rdparter_data()
-{
-    return rda5981_erase_user_data(RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN);
-}
-
-int rda5981_flash_write_3rdparter_data(const u8 *buf, u32 buf_len)
-{
-    int ret;
-
-    WLAND_DBG(INFO, "Enter: %u\r\n", buf_len);
-    if (buf_len > third_parter_data_len) {
-        WLAND_DBG(ERROR,  "buf too long(%u), we have only %x flash space\r\n",
-            buf_len, third_parter_data_len);
-        return -1;
-    }
-
-    rda5981_erase_flash(third_parter_data_location, buf_len);
-    ret = rda5981_write_flash(third_parter_data_location,
-        (char *)(buf), buf_len);
-    if (ret) {
-        WLAND_DBG(ERROR,  "write parter data to flash fail\r\n");
-        return -2;
-    }
-
-    ret = rda5981_write_user_data((u8 *)(&buf_len), 4, RDA5991H_USER_DATA_FLAG_PARTER_DATA_LEN);
-    if (ret) {
-        WLAND_DBG(ERROR,  "write parter data length to flash fail\r\n");
-        return -3;
-    }
-    return 0;
-}
-
-int rda5981_set_flash_size(const u32 size)
-{
-
-    WLAND_DBG(INFO, "Enter set flash size: %x\r\n", size);
-    if (size == 0x100000 ||
-        size == 0x200000 ||
-        size == 0x400000) {
-        flash_size = size;
-        return 0;
-    }
-
-    return -1;
-}
-
-int rda5981_set_user_data_addr(const u32 sys_data_addr,
-    const u32 user_data_addr, const u32 user_data_len)
-{
-    WLAND_DBG(INFO, "Enter set userdata addr: %x:%x:%x\r\n",
-        sys_data_addr, user_data_addr, user_data_len);
-    if ((sys_data_addr&(SECTOR_SIZE-1)) || (user_data_addr&(SECTOR_SIZE-1))) {
-        return -1;
-    }
-    if (sys_data_addr == user_data_addr) {
-        return -2;
-    }
-
-    if (sys_data_addr<=0x18001000 || user_data_addr<=0x18001000) {
-        return -3;
-    }
-    if (sys_data_addr+0x1000 > 0x18000000+flash_size) {
-        return -4;
-    }
-    if (user_data_addr+user_data_len > 0x18000000+flash_size) {
-        return -5;
-    }
-
-    user_data_location = sys_data_addr;
-    third_parter_data_location = user_data_addr;
-    third_parter_data_len= user_data_len;
-    return 0;
-}
-
-int rda5981_write_user_data_regs(u8 *reg, u8 *value, u32 flag)
-{
-    u16 reg16 = 0;
-    u32 reg32 = 0;
-    u8 idx = 0;
-
-    if (!read_flag) {
-        if (0 == rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data))) {
-            read_flag = 1;
-        } else {
-            return -1;
-        }
-    }
-
-    if ((wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) ||
-        strcmp((const char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG)) {
-        memset(&wland_user_data, 0xff, sizeof(wland_user_data));
-        wland_user_data.flag = flag;
-        strcpy((char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG);
-    }
-
-    wland_user_data.flag |= flag;
-
-    switch (flag) {
-    case RDA5991H_USER_DATA_FLAG_RF:
-        if (wland_user_data.rf.valid != 1) {
-            wland_user_data.rf.valid = 1;
-            wland_user_data.rf.flag = 0;
-        }
-
-        reg16 = *((u16 *)reg);
-        if (wland_user_data.rf.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.rf.flag & BIT(idx)) &&
-                    (wland_user_data.rf.reg_val[idx][0] == reg16)) {
-                    wland_user_data.rf.reg_val[idx][1] = *((u16 *)value);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-            if ((8 == idx) && (0xFF == wland_user_data.rf.flag))
-                return -2;
-        }
-
-        if ((8 == idx) || (0 == wland_user_data.rf.flag)) {
-            for (idx = 0; idx < 8; idx++) {
-                if (!(wland_user_data.rf.flag & BIT(idx))) {
-                    wland_user_data.rf.reg_val[idx][0] = reg16;
-                    wland_user_data.rf.reg_val[idx][1] = *((u16 *)value);
-                    wland_user_data.rf.flag |= BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF_CHANNELS:
-        if (wland_user_data.rf_channels.valid != 1) {
-            wland_user_data.rf_channels.valid = 1;
-            wland_user_data.rf_channels.flag = 0;
-        }
-
-        reg16 = *((u16 *)reg);
-        if (wland_user_data.rf_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.rf_channels.flag & BIT(idx)) &&
-                    (wland_user_data.rf_channels.reg_val[idx][0] == reg16)) {
-                    memcpy(&wland_user_data.rf_channels.reg_val[idx][1], value, 14 * sizeof(u16));
-                    break;
-                } else {
-                    continue;
-                }
-            }
-            if ((8 == idx) && (0xFF == wland_user_data.rf_channels.flag)) {
-                return -2;
-            }
-        }
-
-        if ((8 == idx) || (0 == wland_user_data.rf_channels.flag)) {
-            for (idx = 0; idx < 8; idx++) {
-                if (!(wland_user_data.rf_channels.flag & BIT(idx))) {
-                    wland_user_data.rf_channels.reg_val[idx][0] = reg16;
-                    memcpy(&wland_user_data.rf_channels.reg_val[idx][1], value, 14 * sizeof(u16));
-                    wland_user_data.rf_channels.flag |= BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY:
-        if (wland_user_data.phy.valid != 1) {
-            wland_user_data.phy.valid = 1;
-            wland_user_data.phy.flag = 0;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy.flag & BIT(idx)) &&
-                    (wland_user_data.phy.reg_val[idx][0] == reg32)) {
-                    wland_user_data.phy.reg_val[idx][1] = *((u32 *)value);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-            if ((8 == idx) && (0xFF == wland_user_data.phy.flag)) {
-                return -2;
-            }
-        }
-
-        if ((8 == idx) || (0 == wland_user_data.phy.flag)) {
-            for (idx = 0; idx < 8; idx++) {
-                if (!(wland_user_data.phy.flag & BIT(idx))) {
-                    wland_user_data.phy.reg_val[idx][0] = reg32;
-                    wland_user_data.phy.reg_val[idx][1] = *((u32 *)value);
-                    wland_user_data.phy.flag |= BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY_CHANNELS:
-        if (wland_user_data.phy_channels.valid != 1) {
-            wland_user_data.phy_channels.valid = 1;
-            wland_user_data.phy_channels.flag = 0;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy_channels.flag & BIT(idx)) &&
-                    (wland_user_data.phy_channels.reg_val[idx][0] == reg32)) {
-                    memcpy(&wland_user_data.phy_channels.reg_val[idx][1], value, 14 * sizeof(u32));
-                    break;
-                } else {
-                    continue;
-                }
-            }
-            if ((8 == idx) && (0xFF == wland_user_data.phy_channels.flag)) {
-                return -2;
-            }
-        }
-
-        if ((8 == idx) || (0 == wland_user_data.phy_channels.flag)) {
-            for (idx = 0; idx < 8; idx++) {
-                if (!(wland_user_data.phy_channels.flag & BIT(idx))) {
-                    wland_user_data.phy_channels.reg_val[idx][0] = reg32;
-                    memcpy(&wland_user_data.phy_channels.reg_val[idx][1], value, 14 * sizeof(u32));
-                    wland_user_data.phy_channels.flag |= BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-        break;
-    default:
-        WLAND_DBG(ERROR, "Unknown flag:0x%08x\n", flag);
-        return -3;
-    }
-
-    rda5981_erase_flash(user_data_location, sizeof(wland_user_data));
-    return rda5981_write_flash(user_data_location,
-        (char *)(&wland_user_data), sizeof(wland_user_data));
-}
-
-int rda5981_erase_user_data_regs(u8 *reg, u32 flag)
-{
-    u16 reg16 = 0;
-    u32 reg32 = 0;
-    u8 idx = 0;
-
-    if (!read_flag) {
-        if (0 == rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data))) {
-            read_flag = 1;
-        } else {
-            return -1;
-        }
-    }
-
-    if (wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) {//flash init is 0xffffffff
-        return -1;
-    }
-    if ((wland_user_data.flag & flag) == 0) {
-        return 0;
-    }
-    switch (flag) {
-    case RDA5991H_USER_DATA_FLAG_RF:
-        if (wland_user_data.rf.valid != 1) {
-            return 0;
-        }
-
-        reg16 = *((u16 *)reg);
-        if (wland_user_data.rf.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.rf.flag & BIT(idx)) &&
-                    (wland_user_data.rf.reg_val[idx][0] == reg16)) {
-                    memset(&wland_user_data.rf.reg_val[idx][0], 0xFF, 2 * sizeof(u16));
-                    wland_user_data.rf.flag &= ~BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (0 == wland_user_data.rf.flag) {
-            wland_user_data.rf.valid = 0xFFFFFFFF;
-            wland_user_data.rf.flag = 0xFFFFFFFF;
-            wland_user_data.flag &= (~flag);
-        }
-
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF_CHANNELS:
-        if (wland_user_data.rf_channels.valid != 1) {
-            return 0;
-        }
-
-        reg16 = *((u16 *)reg);
-        if (wland_user_data.rf_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.rf_channels.flag & BIT(idx)) &&
-                    (wland_user_data.rf_channels.reg_val[idx][0] == reg16)) {
-                    memset(&wland_user_data.rf_channels.reg_val[idx][0], 0xFF, 15 * sizeof(u16));
-                    wland_user_data.rf_channels.flag &= ~BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (0 == wland_user_data.rf_channels.flag) {
-            wland_user_data.rf_channels.valid = 0xFFFFFFFF;
-            wland_user_data.rf_channels.flag = 0xFFFFFFFF;
-            wland_user_data.flag &= (~flag);
-        }
-
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY:
-        if (wland_user_data.phy.valid != 1) {
-            return 0;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy.flag & BIT(idx)) &&
-                    (wland_user_data.phy.reg_val[idx][0] == reg32)) {
-                    memset(&wland_user_data.phy.reg_val[idx][0], 0xFF, 2 * sizeof(u32));
-                    wland_user_data.phy.flag &= ~BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (0 == wland_user_data.phy.flag) {
-            wland_user_data.phy.valid = 0xFFFFFFFF;
-            wland_user_data.phy.flag = 0xFFFFFFFF;
-            wland_user_data.flag &= (~flag);
-        }
-
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY_CHANNELS:
-        if (wland_user_data.phy_channels.valid != 1) {
-            return 0;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy_channels.flag & BIT(idx)) &&
-                    (wland_user_data.phy_channels.reg_val[idx][0] == reg32)) {
-                    memset(&wland_user_data.phy_channels.reg_val[idx][0], 0xFF, 15 * sizeof(u32));
-                    wland_user_data.phy_channels.flag &= ~BIT(idx);
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (0 == wland_user_data.phy_channels.flag) {
-            wland_user_data.phy_channels.valid = 0xFFFFFFFF;
-            wland_user_data.phy_channels.flag = 0xFFFFFFFF;
-            wland_user_data.flag &= (~flag);
-        }
-
-        break;
-    default:
-        WLAND_DBG(ERROR, "Unknown flag:0x%08x\n", flag);
-        return -3;
-    }
-
-    rda5981_erase_flash(user_data_location, sizeof(wland_user_data));
-    return rda5981_write_flash(user_data_location,
-        (char *)(&wland_user_data), sizeof(wland_user_data));
-}
-
-
-int rda5981_read_user_data_regs(u8 *reg, u8 *value, u32 flag)
-{
-    u16 reg16 = 0;
-    u32 reg32 = 0;
-    u8 idx = 0;
-
-    if (!read_flag) {
-        if(0 == rda5981_read_flash(user_data_location,
-            (char *)(&wland_user_data), sizeof(wland_user_data))) {
-            read_flag = 1;
-        } else {
-            return -1;
-        }
-    }
-
-    if (wland_user_data.flag & RDA5991H_USER_DATA_FLAG_UNINITIALIZED) {//flash init is 0xffffffff
-        return -1;
-    }
-    if (strcmp((const char *)(wland_user_data.rda5981_flag), RDA5981_FLAG_FLAG)) {
-        return -2;
-    }
-    if ((wland_user_data.flag & flag) == 0) {
-        return -3;
-    }
-    switch (flag) {
-    case RDA5991H_USER_DATA_FLAG_RF:
-        if (wland_user_data.rf.valid != 1) {
-            return -4;
-        }
-
-        reg16 = *((u16 *)reg);
-        for (idx = 0; idx < 8; idx++) {
-            if ((wland_user_data.rf.flag & BIT(idx)) &&
-                (wland_user_data.rf.reg_val[idx][0] == reg16)) {
-                memcpy(value, &wland_user_data.rf.reg_val[idx][1], sizeof(u16));
-                break;
-            } else {
-                continue;
-            }
-        }
-
-        if (8 == idx) {
-            return -4;
-        }
-        break;
-    case RDA5991H_USER_DATA_FLAG_RF_CHANNELS:
-        if (wland_user_data.rf_channels.valid != 1) {
-            return -4;
-        }
-
-        reg16 = *((u16 *)reg);
-        if (wland_user_data.rf_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.rf_channels.flag & BIT(idx)) &&
-                    (wland_user_data.rf_channels.reg_val[idx][0] == reg16)) {
-                    memcpy(value, &wland_user_data.rf_channels.reg_val[idx][1], 14 * sizeof(u16));
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (8 == idx) {
-            return -4;
-        }
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY:
-        if (wland_user_data.phy.valid != 1) {
-            return -4;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy.flag & BIT(idx)) &&
-                    (wland_user_data.phy.reg_val[idx][0] == reg32)) {
-                    memcpy(value, &wland_user_data.phy.reg_val[idx][1], sizeof(u32));
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (8 == idx) {
-            return -4;
-        }
-        break;
-    case RDA5991H_USER_DATA_FLAG_PHY_CHANNELS:
-        if (wland_user_data.phy_channels.valid != 1) {
-            return -4;
-        }
-
-        reg32 = *((u32 *)reg);
-        if (wland_user_data.phy_channels.flag != 0) {
-            for (idx = 0; idx < 8; idx++) {
-                if ((wland_user_data.phy_channels.flag & BIT(idx)) &&
-                    (wland_user_data.phy_channels.reg_val[idx][0] == reg32)) {
-                    memcpy(value, &wland_user_data.phy_channels.reg_val[idx][1], 14 * sizeof(u32));
-                    break;
-                } else {
-                    continue;
-                }
-            }
-        }
-
-        if (8 == idx) {
-            return -4;
-        }
-        break;
-    default:
-        WLAND_DBG(ERROR, "Unknown flag:0x%08x\n", flag);
-        return -3;
-    }
-
-    return 0;
-}
-
-int rda5981_flash_get_mid(u8 *mid)
-{
-    *mid = 0xC8;
-
-    return 0;
-}
-
-int rda5981_flash_get_did(u8 *did)
-{
-    *did = 0x13;
-
-    return 0;
-}
-
-int rda5981_flash_get_jdid(u16 *jdid)
-{
-    *jdid = 0x4014;
-
-    return 0;
-}
-
-int rda5981_read_default_config(char *buf, u32 len, u32 flag)
-{
-    int ret = 0;
-    u32 addr;
-    u32 addr_offset = 0;
-    char *temp_buf = NULL, *temp_buf_aligned;
-
-    switch (flag) {
-    case RDA5981_VBAT_CAL:
-        addr = 0x18000088;
-        break;
-    case RDA5981_GPADC0_CAL:
-    case RDA5981_GPADC1_CAL:
-        addr = 0x1800008C;
-        break;
-    case RDA5981_PRODUCT_ID:
-        addr = 0x18000084;
-        break;
-    case RDA5981_POWER_CLASS:
-        addr = 0x18000085;
-        break;
-    default:
-        WLAND_DBG(ERROR, "Unknown flag\n");
-        return -1;
-    }
-
-    addr_offset = addr % 4;
-    addr = (addr - addr_offset) & (flash_size -1);
-
-    if (((u32)buf % 4) || (addr_offset != 0)) {
-        temp_buf = (char *)malloc(addr_offset + len + 4);
-        if (temp_buf == NULL) {
-            ret = -1;
-            goto out;
-        }
-        if ((u32)temp_buf % 4) {
-            temp_buf_aligned = temp_buf + (4 - (u32)temp_buf % 4);
-        } else {
-            temp_buf_aligned = temp_buf;
-        }
-    } else {
-        temp_buf_aligned = buf;
-    }
-
-    core_util_critical_section_enter();
-    spi_flash_flush_cache();
-    SPI_FLASH_READ_DATA_FOR_MBED((void *)addr, temp_buf_aligned, (len + addr_offset));
-    core_util_critical_section_exit();
-
-    if (temp_buf_aligned != buf) {
-        memcpy(buf, temp_buf_aligned + addr_offset, len);
-    }
-out:
-    if (temp_buf) {
-        free(temp_buf);
-    }
-    return ret;
-}
-
-int rda5981_flash_read_vbat_cal(float *k, float *b)
-{
-    int ret = 0;
-    u32 value = 0;
-    u32 x1 = 0;//y1 3.0f
-    u32 x2 = 0;//y2 4.2f
-    float k_tmp = 0;
-    float b_tmp = 0;
-
-    ret = rda5981_read_default_config((char *)&value, 4, RDA5981_VBAT_CAL);
-
-    if (ret < 0) {
-        WLAND_DBG(ERROR, "read vbat_cal form flash fail\n");
-        return -1;
-    }
-    if ((0 == (value & 0xFFFFFUL)) || (0xFFFFFUL == (value & 0xFFFFFUL))) {
-        WLAND_DBG(ERROR, "invalid vbat_cal:0x%08x\n", value);
-        return -1;
-    } else {
-        x1 = value & 0x3FFUL;
-        x2 = (value >> 10) & 0x3FFUL;
-    }
-
-    if (x1 == x2) {
-        return -1;
-    }
-
-    k_tmp = (4.2f - 3.0f) / (float)(x2 - x1);
-    b_tmp = 4.2f - k_tmp * x2;
-
-    *k = k_tmp;
-    *b = b_tmp;
-
-    return ret;
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash_wp.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash_wp.c
deleted file mode 100644
index 6ff0181640..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_flash_wp.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "mbed_interface.h"
-#include "wland_flash.h"
-
-//#define FLASH_PROTECT_ENABLE
-
-#define FLASH_CTL_REG_BASE              0x17fff000
-#define FLASH_CTL_TX_CMD_ADDR_REG       (FLASH_CTL_REG_BASE + 0x00)
-#define FLASH_CTL_TX_BLOCK_SIZE_REG     (FLASH_CTL_REG_BASE + 0x04)
-#define FLAHS_CTL_TX_FIFO_DATA_REG      (FLASH_CTL_REG_BASE + 0x08)
-#define FLASH_CTL_STATUS_REG            (FLASH_CTL_REG_BASE + 0x0c)
-#define FLAHS_CTL_RX_FIFO_DATA_REG      (FLASH_CTL_REG_BASE + 0x10)
-
-#define WRITE_REG32(REG, VAL) ((*(volatile unsigned int*)(REG)) = (unsigned int)(VAL))
-#define WRITE_REG8(REG, VAL) ((*(volatile unsigned char*)(REG)) = (unsigned char)(VAL))
-#define MREAD_WORD(addr)      *((volatile unsigned int *)(addr))
-
-#define MID_GD      0xC8
-#define MID_WINBOND 0xEF
-
-#define FLASH_1M    0x100000
-#define FLASH_2M    0x200000
-#define FLASH_4M    0x400000
-extern unsigned int flash_size;
-
-#ifdef FLASH_PROTECT_ENABLE
-
-#define FLASH_WP_MASK           0x407c
-#define FLASH_WP_NONE           0x0000
-#define FLASH_WP_ALL            0x1c
-
-#define FLASH_4M_WP_4K          0x0064
-#define FLASH_4M_WP_8K          0x0068
-#define FLASH_4M_WP_16K         0x006c
-#define FLASH_4M_WP_32K         0x0070
-#define FLASH_4M_WP_1_64        0x0024
-#define FLASH_4M_WP_1_32        0x0028
-#define FLASH_4M_WP_1_16        0x002c
-#define FLASH_4M_WP_1_8         0x0030
-#define FLASH_4M_WP_1_4         0x0034
-#define FLASH_4M_WP_1_2         0x0038
-#define FLASH_4M_WP_3_4         0x4014
-#define FLASH_4M_WP_7_8         0x4010
-#define FLASH_4M_WP_15_16       0x400c
-#define FLASH_4M_WP_31_32       0x4008
-#define FLASH_4M_WP_63_64       0x4004
-#define FLASH_4M_WP_127_128     0x4058
-#define FLASH_4M_WP_255_256     0x404C
-#define FLASH_4M_WP_1023_1024   0x4044
-
-#define FLASH_2M_WP_4K          0x0064
-#define FLASH_2M_WP_8K          0x0068
-#define FLASH_2M_WP_16K         0x006c
-#define FLASH_2M_WP_32K         0x0070
-#define FLASH_2M_WP_1_32        0x0024
-#define FLASH_2M_WP_1_16        0x0028
-#define FLASH_2M_WP_1_8         0x002c
-#define FLASH_2M_WP_1_4         0x0050
-#define FLASH_2M_WP_1_2         0x0051
-#define FLASH_2M_WP_3_4         0x4010
-#define FLASH_2M_WP_7_8         0x400c
-#define FLASH_2M_WP_15_16       0x4004
-#define FLASH_2M_WP_31_32       0x4000
-#define FLASH_2M_WP_63_64       0x4050
-#define FLASH_2M_WP_127_128     0x404c
-#define FLASH_2M_WP_255_256     0x4048
-#define FLASH_2M_WP_511_512     0x4044
-
-
-#define FLASH_1M_WP_4K          0x0064
-#define FLASH_1M_WP_8K          0x0068
-#define FLASH_1M_WP_16K         0x006c
-#define FLASH_1M_WP_32K         0x0070
-#define FLASH_1M_WP_1_16        0x0024
-#define FLASH_1M_WP_1_8         0x0028
-#define FLASH_1M_WP_1_4         0x002c
-#define FLASH_1M_WP_1_2         0x0050
-#define FLASH_1M_WP_3_4         0x400C
-#define FLASH_1M_WP_7_8         0x4008
-#define FLASH_1M_WP_15_16       0x4004
-#define FLASH_1M_WP_31_32       0x4050
-#define FLASH_1M_WP_63_64       0x404C
-#define FLASH_1M_WP_127_128     0x4048
-#define FLASH_1M_WP_255_256     0x4044
-
-static unsigned short flash_wrtie_protect_4M(unsigned short status, unsigned int offset)
-{
-    unsigned int wp = FLASH_WP_NONE;
-    if (offset >= flash_size - flash_size/1024) {
-        wp = FLASH_4M_WP_1023_1024;
-    } else if(offset >= flash_size - flash_size/256) {
-        wp = FLASH_4M_WP_255_256;
-    } else if(offset >= flash_size - flash_size/128) {
-        wp = FLASH_4M_WP_127_128;
-    } else if(offset >= flash_size - flash_size/64) {
-        wp = FLASH_4M_WP_63_64;
-    } else if(offset >= flash_size - flash_size/32) {
-        wp = FLASH_4M_WP_31_32;
-    } else if(offset >= flash_size - flash_size/16) {
-        wp = FLASH_4M_WP_15_16;
-    } else if(offset >= flash_size - flash_size/8) {
-        wp = FLASH_4M_WP_7_8;
-    } else if(offset >= flash_size - flash_size/4) {
-        wp = FLASH_4M_WP_3_4;
-    } else if(offset >= flash_size/2) {
-        wp = FLASH_4M_WP_1_2;
-    } else if(offset >= flash_size/4) {
-        wp = FLASH_4M_WP_1_4;
-    } else if(offset >= flash_size/8) {
-        wp = FLASH_4M_WP_1_8;
-    } else if(offset >= flash_size/16) {
-        wp = FLASH_4M_WP_1_16;
-    } else if(offset >= flash_size/32) {
-        wp = FLASH_4M_WP_1_32;
-    } else if(offset >= flash_size/64) {
-        wp = FLASH_4M_WP_1_64;
-    } else if(offset >= 32 * 1024) {
-        wp = FLASH_4M_WP_32K;
-    } else if(offset >= 16 * 1024) {
-        wp = FLASH_4M_WP_16K;
-    } else if(offset >= 8 * 1024) {
-        wp = FLASH_4M_WP_8K;
-    } else if(offset >= 4 * 1024) {
-        wp = FLASH_4M_WP_4K;
-    }
-
-    return (status & ~FLASH_WP_MASK) | wp;
-    
-}
-
-static unsigned short flash_wrtie_protect_2M(unsigned short status, unsigned int offset)
-{
-    unsigned int wp = FLASH_WP_NONE;
-    if (offset >= flash_size - flash_size/256) {
-        wp = FLASH_2M_WP_255_256;
-    } else if(offset >= flash_size - flash_size/128) {
-        wp = FLASH_2M_WP_127_128;
-    } else if(offset >= flash_size - flash_size/64) {
-        wp = FLASH_2M_WP_63_64;
-    } else if(offset >= flash_size - flash_size/32) {
-        wp = FLASH_2M_WP_31_32;
-    } else if(offset >= flash_size - flash_size/16) {
-        wp = FLASH_2M_WP_15_16;
-    } else if(offset >= flash_size - flash_size/8) {
-        wp = FLASH_2M_WP_7_8;
-    } else if(offset >= flash_size - flash_size/4) {
-        wp = FLASH_2M_WP_3_4;
-    } else if(offset >= flash_size/2) {
-        wp = FLASH_2M_WP_1_2;
-    } else if(offset >= flash_size/4) {
-        wp = FLASH_2M_WP_1_4;
-    } else if(offset >= flash_size/8) {
-        wp = FLASH_2M_WP_1_8;
-    } else if(offset >= flash_size/16) {
-        wp = FLASH_2M_WP_1_16;
-    } else if(offset >= flash_size/32) {
-        wp = FLASH_2M_WP_1_32;
-    } else if(offset >= 32 * 1024) {
-        wp = FLASH_2M_WP_32K;
-    } else if(offset >= 16 * 1024) {
-        wp = FLASH_2M_WP_16K;
-    } else if(offset >= 8 * 1024) {
-        wp = FLASH_2M_WP_8K;
-    } else if(offset >= 4 * 1024) {
-        wp = FLASH_2M_WP_4K;
-    }
-
-    return (status & ~FLASH_WP_MASK) | wp;
-    
-}
-
-static unsigned short flash_wrtie_protect_1M(unsigned short status, unsigned int offset)
-{
-    unsigned int wp = FLASH_WP_NONE;
-
-    if (offset >= flash_size - flash_size/256) {
-        wp = FLASH_1M_WP_255_256;
-    } else if(offset >= flash_size - flash_size/128) {
-        wp = FLASH_1M_WP_127_128;
-    } else if(offset >= flash_size - flash_size/64) {
-        wp = FLASH_1M_WP_63_64;
-    } else if(offset >= flash_size - flash_size/32) {
-        wp = FLASH_1M_WP_31_32;
-    } else if(offset >= flash_size - flash_size/16) {
-        wp = FLASH_1M_WP_15_16;
-    } else if(offset >= flash_size - flash_size/8) {
-        wp = FLASH_1M_WP_7_8;
-    } else if(offset >= flash_size - flash_size/4) {
-        wp = FLASH_1M_WP_3_4;
-    } else if(offset >= flash_size/2) {
-        wp = FLASH_1M_WP_1_2;
-    } else if(offset >= flash_size/4) {
-        wp = FLASH_1M_WP_1_4;
-    } else if(offset >= flash_size/8) {
-        wp = FLASH_1M_WP_1_8;
-    } else if(offset >= flash_size/16) {
-        wp = FLASH_1M_WP_1_16;
-    } else if(offset >= 32 * 1024) {
-        wp = FLASH_1M_WP_32K;
-    } else if(offset >= 16 * 1024) {
-        wp = FLASH_1M_WP_16K;
-    } else if(offset >= 8 * 1024) {
-        wp = FLASH_1M_WP_8K;
-    } else if(offset >= 4 * 1024) {
-        wp = FLASH_1M_WP_4K;
-    } 
-
-    return (status & ~FLASH_WP_MASK) | wp;
-    
-}
-
-void flash_wrtie_protect_all()
-{
-    unsigned short status;
-    unsigned char r1, r2;
-    core_util_critical_section_enter();
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x05);
-    wait_busy_down();
-    r1 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x35);
-    wait_busy_down();
-    r2 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    //mbed_error_printf("status %x %x\r\n", r2, r1);
-    
-    status = (r2 << 8) | r1;
-    status = (status & ~FLASH_WP_MASK) | FLASH_WP_ALL;
-    //mbed_error_printf("status %04x\r\n", status);
-    
-    spi_write_reset();
-    wait_busy_down();
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, (status&0xff));
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, ((status>>8)&0xff));
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x01);
-    wait_busy_down();
-    spi_wip_reset();
-    core_util_critical_section_exit();
-    return;
-}
-
-void flash_wrtie_protect_none()
-{
-    unsigned short status;
-    unsigned char r1, r2;
-    core_util_critical_section_enter();
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x05);
-    wait_busy_down();
-    r1 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x35);
-    wait_busy_down();
-    r2 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    //mbed_error_printf("status %x %x\r\n", r2, r1);
-    
-    status = (r2 << 8) | r1;
-    status = status & ~FLASH_WP_MASK;
-    //mbed_error_printf("status %04x\r\n", status);
-
-    spi_write_reset();
-    wait_busy_down();
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, (status&0xff));
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, ((status>>8)&0xff));
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x01);
-    wait_busy_down();
-    spi_wip_reset();
-    core_util_critical_section_exit();
-    return;
-}
-
-void flash_wrtie_protect(unsigned int offset)
-{
-    unsigned short status;
-    unsigned char r1, r2;
-    core_util_critical_section_enter();
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x05);
-    wait_busy_down();
-    r1 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x35);
-    wait_busy_down();
-    r2 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    //mbed_error_printf("status %x %x\r\n", r2, r1);
-    
-    status = (r2 << 8) | r1;
-    if (flash_size == FLASH_4M) {
-        status = flash_wrtie_protect_4M(status, offset);
-    } else if(flash_size == FLASH_2M) {
-        status = flash_wrtie_protect_2M(status, offset);
-    } else if(flash_size == FLASH_1M) {
-        status = flash_wrtie_protect_1M(status, offset);
-    } else [
-        LWIP_DEBUGF(NETIF_DEBUG,"flash_size is error\r\n");
-    }
-    //mbed_error_printf("status %04x\r\n", status);
-    
-    spi_write_reset();
-    wait_busy_down();
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, (status&0xff));
-    WRITE_REG8(FLAHS_CTL_TX_FIFO_DATA_REG, ((status>>8)&0xff));
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x01);
-    wait_busy_down();
-    spi_wip_reset();
-    core_util_critical_section_exit();
-    return;
-}
-#else
-void flash_wrtie_protect_all()
-{
-    return;
-}
-
-void flash_wrtie_protect_none()
-{
-    return;
-}
-
-void flash_wrtie_protect(unsigned int offset)
-{
-    return;
-}
-
-#endif
-void rda5981_flash_init()
-{
-    unsigned int status3, status4, status5;
-    core_util_critical_section_enter();
-    WRITE_REG32(FLASH_CTL_TX_BLOCK_SIZE_REG, 3<<8);
-    status3 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    status4 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    status5 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-
-    wait_busy_down();
-    spi_wip_reset();
-    WRITE_REG32(FLASH_CTL_TX_CMD_ADDR_REG, 0x9F);
-    wait_busy_down();
-    //WRITE_REG32(FLASH_CTL_TX_BLOCK_SIZE_REG, 3<<8);
-    //wait_busy_down();
-    status3 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    status4 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    status5 = MREAD_WORD(FLAHS_CTL_RX_FIFO_DATA_REG);
-    core_util_critical_section_exit();
-   
-    if ((status5&0xff != 0x14) && (status5&0xff != 0x15) && (status5&0xff != 0x16)) {
-        mbed_error_printf("flash size error\r\n");
-        return;
-    }
-    flash_size = (1 << (status5&0xff));
-    flash_wrtie_protect_all();
-    
-    return;
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_ota.c b/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_ota.c
deleted file mode 100644
index 05a85abc0a..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/lwip-wifi/arch/TARGET_RDA/TARGET_UNO_91H/src/wland_ota.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "wland_ota.h"
-#include "wland_flash.h"
-#include "rda5981_ota.h"
-#include "wland_dbg.h"
-#include "wland_types.h"
-#include "critical.h"
-#include <stdbool.h>
-#include <string.h>
-
-#define IMAGE_MAGIC         0xAEAE
-
-u32 wland_ota_partition_addr = 0;
-u32 wland_ota_partition_len = 0;
-u32 wland_crc_result = ~0UL;
-
-static u32 crc32(const u8 *p, u32 len, u32 crc)
-{
-    const u32 *crc32_tab = (const u32 *)CRC32_TABLE_ADDR;
-
-    if (rda_ccfg_hwver() >= 4) {
-        crc32_tab = (const u32 *)CRC32_TABLE_ADDR_4;
-    }
-    /* Calculate CRC */
-    while(len--) {
-         crc = crc32_tab[((crc & 0xFF) ^ *p++)] ^ (crc >> 8);
-    }
-
-    return crc;
-}
-
-static int rda5981_ota_erase_flash(u32 addr, u32 len)
-{
-    addr &= (flash_size -1);
-    rda5981_spi_erase_partition((void *)addr, len);
-    return 0;
-}
-//write without erase
-static int rda5981_ota_write_flash(u32 addr, char *buf, u32 len)
-{
-    int ret = 0;
-    u8 *temp_buf = NULL, *temp_buf_aligned;
-
-    addr &= (flash_size -1);
-    if ((u32)buf % 4) {
-        temp_buf = malloc(len + 3);
-        if (temp_buf == NULL) {
-            goto out;
-        }
-        if ((u32)temp_buf % 4) {
-            temp_buf_aligned = temp_buf + (4-(u32)temp_buf%4);
-        } else {
-            temp_buf_aligned = temp_buf;
-        }
-        memcpy(temp_buf_aligned, (unsigned char *)buf, len);
-    } else {
-        temp_buf_aligned = (u8 *)buf;
-    }
-    core_util_critical_section_enter();
-    RDA5991H_WRITE_FLASH(addr, temp_buf_aligned, len);
-    core_util_critical_section_exit();
-
-out:
-    if (temp_buf) {
-        free(temp_buf);
-    }
-    return ret;
-}
-
-int rda5981_write_partition_start(u32 addr, u32 img_len)
-{
-    if (addr < 0x18001000 || addr+img_len>0x18000000+flash_size) {
-        WLAND_DBG(ERROR,"write partition start addr error. (0x%08x, %u)\r\n", addr, img_len);
-        return -1;
-    }
-    if (addr%0x1000 || img_len%0x1000) {
-        WLAND_DBG(ERROR,"write partition start length error.(mast be 4k alignment) (0x%08x, %u)\r\n", addr, img_len);
-        return -1;
-    }
-
-    WLAND_DBG(INFO, "rda5981_write_partition_start:0x%08x, %u\r\n", addr, img_len);
-    wland_ota_partition_addr = addr;
-    wland_ota_partition_len = img_len;
-    wland_crc_result = ~0U;
-
-    rda5981_ota_erase_flash(addr, img_len);
-    return 0;
-}
-int rda5981_write_partition(u32 offset, const u8 *buf, u32 len)
-{
-    if (wland_ota_partition_addr==0 || offset+len>wland_ota_partition_len) {
-        WLAND_DBG(ERROR,"write partition error. out of start addr(0x%08x, %u). (0x%08x, %u)\r\n",
-            wland_ota_partition_addr, wland_ota_partition_len, offset, len);
-        return -1;
-    }
-    if (len%0x400) {
-        WLAND_DBG(ERROR,"write partition length error.(mast be 1k alignment) (0x%08x, %u)\r\n", offset, len);
-        return -1;
-    }
-    WLAND_DBG(DEBUG, "rda5981_write_partition:0x%08x, %u.(%02x)\r\n",
-        wland_ota_partition_addr + offset, len, buf[0]);
-    wland_crc_result = crc32(buf, len, wland_crc_result);
-
-    WLAND_DBG(DEBUG, "rda5981_write_partition: wland_crc_result 0x%08x\r\n",
-        wland_crc_result);
-    return rda5981_ota_write_flash(wland_ota_partition_addr + offset, (char *)buf, len);
-    //return rda5981_write_flash(wland_ota_partition_addr + offset, buf, len);
-}
-int rda5981_write_partition_end(void)
-{
-    WLAND_DBG(INFO, "check crc32:0x%08x, %u\r\n", wland_ota_partition_addr, wland_ota_partition_len);
-    if (wland_ota_partition_addr == 0) {
-        WLAND_DBG(ERROR,"OTA is not started\r\n");
-        return -1;
-    }
-    core_util_critical_section_enter();
-    spi_flash_flush_cache();
-    //u32 crc32_check = crc32(wland_ota_partition_addr, wland_ota_partition_len, ~0U);
-    u32 crc32_check = bootrom_crc32((unsigned char *)wland_ota_partition_addr, wland_ota_partition_len);
-    core_util_critical_section_exit();
-    WLAND_DBG(INFO, "rda5981_write_partition_end:0x%08x:0x%08x\r\n", wland_crc_result, crc32_check);
-    wland_ota_partition_addr = 0UL;
-
-    if (crc32_check == wland_crc_result) {
-        return 0;
-    } else {
-        WLAND_DBG(ERROR,"check crc32 error\r\n");
-        return -1;
-    }
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/mbed_lib.json b/connectivity/drivers/emac/TARGET_RDA_EMAC/mbed_lib.json
deleted file mode 100644
index a0fbd3bfb2..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/mbed_lib.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "name": "rda5981x-emac"
-}
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.cpp b/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.cpp
deleted file mode 100644
index 4b32206307..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.cpp
+++ /dev/null
@@ -1,291 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdlib.h>
-#include "cmsis_os.h"
-#include "mbed_interface.h"
-#include "mbed_assert.h"
-#include "events/mbed_shared_queues.h"
-#include "netsocket/nsapi_types.h"
-#include "lwip/arch.h"
-#include "lwip/pbuf.h"
-#include "rda5991h_wland.h"
-#include "rda5981x_emac_config.h"
-#include "rda5981x_emac.h"
-#include "rda_sys_wrapper.h"
-#include "maclib_task.h"
-
-#define RDA_HWADDR_SIZE         (6)
-#define RDA_ETH_MTU_SIZE        1500
-#define RDA_ETH_IF_NAME         "st"
-
-#define RX_PRIORITY   (osPriorityNormal)
-#define TX_PRIORITY   (osPriorityNormal)
-#define PHY_PRIORITY  (osPriorityNormal)
-
-extern void *packet_rx_queue;
-
-RDA5981x_EMAC::RDA5981x_EMAC()
-{
-}
-
-/**
- * This function should do the actual transmission of the packet. The packet is
- * contained in the memory buffer chain that is passed to the function.
- *
- * @param buf the MAC packet to send (e.g. IP packet including MAC addresses and type)
- * @return true if the packet could be sent
- *         false value if the packet couldn't be sent
- *
- * @note Returning ERR_MEM here if a DMA queue of your MAC is full can lead to
- *       strange results. You might consider waiting for space in the DMA queue
- *       to become availale since the stack doesn't retry to send a packet
- *       dropped because of memory failure (except for the TCP timers).
- */
-bool RDA5981x_EMAC::link_out(emac_mem_buf_t *buf)
-{
-    emac_mem_buf_t *q, *p = buf;
-
-    u32_t actual_txlen = 0;
-    u8_t **data = NULL;
-    u16_t retry = 400;
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output enter, p:%08x\n", p));
-
-    while ((data == NULL) && (retry-- > 0)) {
-        data = (u8_t**)wland_get_databuf();
-        osThreadYield();
-    }
-    if (data == NULL) {
-        LWIP_DEBUGF(NETIF_DEBUG, ("rda91h_low_level_output, no PKT buf\r\n"));
-        memory_manager->free(buf);
-        return false;
-    }
-
-    for (q = p; q != NULL; q = memory_manager->get_next(q)) {
-        /* Send the data from the pbuf to the interface, one pbuf at a
-           time. The size of the data in each pbuf is kept in the ->len
-           variable. */
-        memcpy(&((*data)[actual_txlen+2]), memory_manager->get_ptr(q), memory_manager->get_len(q));//reserve wid header length
-        actual_txlen += memory_manager->get_len(q);
-        if (actual_txlen > 1514 || actual_txlen > memory_manager->get_total_len(p)) {
-            LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output err, actual_txlen:%d, tot_len%d\n", actual_txlen, memory_manager->get_total_len(p)));
-            memory_manager->free(buf);
-            return false;
-        }
-    }
-
-    /* Signal rda5996 that packet should be sent */
-    if (actual_txlen == memory_manager->get_total_len(p)) {
-        wland_txip_data((void*)data, actual_txlen, 0);
-        memory_manager->free(buf);
-        return true;
-    }
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_output pkt len mismatch, actual_txlen:%d, tot_len%d\n",
-            actual_txlen, memory_manager->get_total_len(p)));
-
-    memory_manager->free(buf);
-    return false;
-}
-
-/**
- * Should allocate a contiguous memory buffer and transfer the bytes of the incoming
- * packet to the buffer.
- *
- * @param buf If a frame was received and the memory buffer allocation was successful, a memory
- *            buffer filled with the received packet (including MAC header)
- * @return negative value when no more frames,
- *         zero when frame is received
- */
-emac_mem_buf_t * RDA5981x_EMAC::low_level_input(u8_t *data, int len)
-{
-    emac_mem_buf_t *p, *q;
-    u16_t index = 0;
-
-    LWIP_DEBUGF(NETIF_DEBUG, ("low_level_input enter, rxlen:%d\n", len));
-
-    /* Obtain the size of the packet and put it into the "len"
-     variable. */
-    if (!len) {
-        return NULL;
-    }
-
-    /* We allocate a pbuf chain of pbufs from the pool. */
-    p = memory_manager->alloc_pool(len, 0);
-    if (p != NULL) {
-        /* We iterate over the pbuf chain until we have read the entire
-         * packet into the pbuf. */
-        for (q = p; q != NULL; q = memory_manager->get_next(q)) {
-            /* Read enough bytes to fill this pbuf in the chain. The
-            * available data in the pbuf is given by the q->len
-            * variable.
-            * This does not necessarily have to be a memcpy, you can also preallocate
-            * pbufs for a DMA-enabled MAC and after receiving truncate it to the
-            * actually received size. In this case, ensure the tot_len member of the
-            * pbuf is the sum of the chained pbuf len members.
-            */
-            /* load rx data from 96 to local mem_pool */
-            memcpy(memory_manager->get_ptr(q), &data[index], memory_manager->get_len(q));
-            index += memory_manager->get_len(q);
-
-            if (index >= len) {
-                break;
-            }
-        }
-
-    } else {
-        /* Drop this packet */
-        LWIP_DEBUGF(NETIF_DEBUG, ("low_level_input pbuf_alloc fail, rxlen:%d\n", len));
-
-        return NULL;
-    }
-    return p;
-}
-
-
-/** \brief  Attempt to read a packet from the EMAC interface.
- *
- */
-void RDA5981x_EMAC::packet_rx()
-{
-    rda_msg msg;
-    packet_rx_queue = rda_mail_create(10, sizeof(unsigned int)*4);
-    /* move received packet into a new buf */
-    while (1) {
-        emac_mem_buf_t *p = NULL;
-        rda_mail_get(packet_rx_queue, (void*)&msg, osWaitForever);
-        switch(msg.type) {
-            case 0:
-                p = low_level_input((unsigned char*)msg.arg1, msg.arg2);
-                if (p == NULL) {
-                    break;
-                }
-                if (p) {
-                    emac_link_input_cb(p);
-                }
-                break;
-            case 1:
-                emac_link_state_cb(msg.arg1);
-                break;
-            default:
-                break;
-        }
-    }
-}
-
-void RDA5981x_EMAC::thread_function(void *pvParameters)
-{
-    static struct RDA5981x_EMAC *rda5981x_enet = static_cast<RDA5981x_EMAC *>(pvParameters);
-    rda5981x_enet->packet_rx();
-}
-
-bool RDA5981x_EMAC::power_up()
-{
-    /* Initialize the hardware */
-    static int init_flag = 0;
-    if (init_flag == 0) {
-        wland_reg_func();
-        rda_thread_new("maclib_thread", maclib_task, NULL, DEFAULT_THREAD_STACKSIZE*8, PHY_PRIORITY);
-        rda_thread_new("wland_thread", wland_task, NULL, DEFAULT_THREAD_STACKSIZE*5, PHY_PRIORITY);
-        rda_thread_new("packet_rx", RDA5981x_EMAC::thread_function, this, DEFAULT_THREAD_STACKSIZE*5, PHY_PRIORITY);
-        /* Allow the PHY task to detect the initial link state and set up the proper flags */
-        osDelay(100);
-        wland_sta_init();
-        init_flag = 1;
-    }
-
-    return true;
-}
-
-uint32_t RDA5981x_EMAC::get_mtu_size() const
-{
-    return RDA_ETH_MTU_SIZE;
-}
-
-uint32_t RDA5981x_EMAC::get_align_preference() const
-{
-    return 0;
-}
-
-void RDA5981x_EMAC::get_ifname(char *name, uint8_t size) const
-{
-    memcpy(name, RDA_ETH_IF_NAME, (size < sizeof(RDA_ETH_IF_NAME)) ? size : sizeof(RDA_ETH_IF_NAME));
-}
-
-uint8_t RDA5981x_EMAC::get_hwaddr_size() const
-{
-    return RDA_HWADDR_SIZE;
-}
-
-bool RDA5981x_EMAC::get_hwaddr(uint8_t *addr) const
-{
-    mbed_mac_address((char *)addr);
-    return true;
-}
-
-void RDA5981x_EMAC::set_hwaddr(const uint8_t *addr)
-{
-    /* No-op at this stage */
-}
-
-void RDA5981x_EMAC::set_link_input_cb(emac_link_input_cb_t input_cb)
-{
-    emac_link_input_cb = input_cb;
-}
-
-void RDA5981x_EMAC::set_link_state_cb(emac_link_state_change_cb_t state_cb)
-{
-    emac_link_state_cb = state_cb;
-}
-
-void RDA5981x_EMAC::add_multicast_group(const uint8_t *addr)
-{
-    /* No-op at this stage */
-}
-
-void RDA5981x_EMAC::remove_multicast_group(const uint8_t *addr)
-{
-    /* No-op at this stage */
-}
-
-void RDA5981x_EMAC::set_all_multicast(bool all)
-{
-    /* No-op at this stage */
-}
-
-void RDA5981x_EMAC::power_down()
-{
-    /* No-op at this stage */
-}
-
-void RDA5981x_EMAC::set_memory_manager(EMACMemoryManager &mem_mngr)
-{
-    memory_manager = &mem_mngr;
-}
-
-RDA5981x_EMAC &RDA5981x_EMAC::get_instance()
-{
-    static RDA5981x_EMAC emac;
-    return emac;
-}
-
-// Weak so a module can override
-MBED_WEAK EMAC &EMAC::get_default_instance()
-{
-    return RDA5981x_EMAC::get_instance();
-}
-
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.h
deleted file mode 100644
index fa95ba44ff..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac.h
+++ /dev/null
@@ -1,160 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef STM32_EMAC_H_
-#define STM32_EMAC_H_
-
-#include "EMAC.h"
-#include "rtos/Mutex.h"
-
-class RDA5981x_EMAC : public EMAC {
-public:
-    RDA5981x_EMAC();
-
-    static RDA5981x_EMAC &get_instance();
-
-    /**
-     * Return maximum transmission unit
-     *
-     * @return     MTU in bytes
-     */
-    virtual uint32_t get_mtu_size() const;
-
-    /**
-     * Gets memory buffer alignment preference
-     *
-     * Gets preferred memory buffer alignment of the Emac device. IP stack may or may not
-     * align link out memory buffer chains using the alignment.
-     *
-     * @return         Memory alignment requirement in bytes
-     */
-    virtual uint32_t get_align_preference() const;
-
-    /**
-     * Return interface name
-     *
-     * @param name Pointer to where the name should be written
-     * @param size Maximum number of character to copy
-     */
-    virtual void get_ifname(char *name, uint8_t size) const;
-
-    /**
-     * Returns size of the underlying interface HW address size.
-     *
-     * @return     HW address size in bytes
-     */
-    virtual uint8_t get_hwaddr_size() const;
-
-    /**
-     * Return interface-supplied HW address
-     *
-     * Copies HW address to provided memory, @param addr has to be of correct size see @a get_hwaddr_size
-     *
-     * HW address need not be provided if this interface does not have its own HW
-     * address configuration; stack will choose address from central system
-     * configuration if the function returns false and does not write to addr.
-     *
-     * @param addr HW address for underlying interface
-     * @return     true if HW address is available
-     */
-    virtual bool get_hwaddr(uint8_t *addr) const;
-
-    /**
-     * Set HW address for interface
-     *
-     * Provided address has to be of correct size, see @a get_hwaddr_size
-     *
-     * Called to set the MAC address to actually use - if @a get_hwaddr is provided
-     * the stack would normally use that, but it could be overridden, eg for test
-     * purposes.
-     *
-     * @param addr Address to be set
-     */
-    virtual void set_hwaddr(const uint8_t *addr);
-
-    /**
-     * Sends the packet over the link
-     *
-     * That can not be called from an interrupt context.
-     *
-     * @param buf  Packet to be send
-     * @return     True if the packet was send successfully, False otherwise
-     */
-    virtual bool link_out(emac_mem_buf_t *buf);
-
-    /**
-     * Initializes the HW
-     *
-     * @return True on success, False in case of an error.
-     */
-    virtual bool power_up();
-
-    /**
-     * Deinitializes the HW
-     *
-     */
-    virtual void power_down();
-
-    /**
-     * Sets a callback that needs to be called for packets received for that interface
-     *
-     * @param input_cb Function to be register as a callback
-     */
-    virtual void set_link_input_cb(emac_link_input_cb_t input_cb);
-
-    /**
-     * Sets a callback that needs to be called on link status changes for given interface
-     *
-     * @param state_cb Function to be register as a callback
-     */
-    virtual void set_link_state_cb(emac_link_state_change_cb_t state_cb);
-
-    /** Add device to a multicast group
-     *
-     * @param address  A multicast group hardware address
-     */
-    virtual void add_multicast_group(const uint8_t *address);
-
-    /** Remove device from a multicast group
-     *
-     * @param address  A multicast group hardware address
-     */
-    virtual void remove_multicast_group(const uint8_t *address);
-
-    /** Request reception of all multicast packets
-     *
-     * @param all True to receive all multicasts
-     *            False to receive only multicasts addressed to specified groups
-     */
-    virtual void set_all_multicast(bool all);
-
-    /** Sets memory manager that is used to handle memory buffers
-     *
-     * @param mem_mngr Pointer to memory manager
-     */
-    virtual void set_memory_manager(EMACMemoryManager &mem_mngr);
-
-private:
-    void packet_rx();
-    emac_mem_buf_t * low_level_input(u8_t *data, int len);
-    static void thread_function(void *pvParameters);
-    emac_link_input_cb_t emac_link_input_cb; /**< Callback for incoming data */
-    emac_link_state_change_cb_t emac_link_state_cb; /**< Link state change callback */
-    EMACMemoryManager *memory_manager; /**< Memory manager */
-
-};
-
-#endif /* K64F_EMAC_H_ */
diff --git a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac_config.h b/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac_config.h
deleted file mode 100644
index 717d423bfe..0000000000
--- a/connectivity/drivers/emac/TARGET_RDA_EMAC/rda5981x_emac_config.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright (c) 2019 Unisoc Communications Inc.
- * SPDX-License-Identifier: Apache-2.0
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef STM32XX_EMAC_CONFIG_H__
-#define STM32XX_EMAC_CONFIG_H__
-
-#define THREAD_STACKSIZE              512
-
-#endif // #define STM32XX_EMAC_CONFIG_H__