diff --git a/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.c b/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.c
index 763b6526da..5869d70cb3 100644
--- a/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.c
+++ b/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.c
@@ -94,7 +94,7 @@ static wdog_config_t WDOG_3_config =
 };
 #endif
 
-static rt_watchdog_t imx6ull_watchdog[DEV_MAX] =
+static watchdog_t imx6ull_watchdog[DEV_MAX] =
 {
 #ifdef RT_USING_WDT1
     {
@@ -122,7 +122,7 @@ static rt_watchdog_t imx6ull_watchdog[DEV_MAX] =
 
 };
 
-static rt_err_t imx6ull_wdog_init(rt_watchdog_t *wdt)
+static rt_err_t imx6ull_wdog_init(watchdog_t *wdt)
 {
     WDOG_Type *base = RT_NULL;
     base = (WDOG_Type *)wdt->vaddr;
@@ -131,7 +131,7 @@ static rt_err_t imx6ull_wdog_init(rt_watchdog_t *wdt)
     return RT_EOK;
 }
 
-static rt_err_t imx6ull_wdog_control(rt_watchdog_t *wdt, int cmd, void *args)
+static rt_err_t imx6ull_wdog_control(watchdog_t *wdt, int cmd, void *args)
 {
     RT_ASSERT(wdt != NULL);
 
@@ -174,7 +174,7 @@ static rt_err_t imx6ull_wdog_control(rt_watchdog_t *wdt, int cmd, void *args)
     return RT_EOK;
 }
 
-static struct rt_watchdog_ops imx6ull_wdog_ops =
+static struct rwatchdog_ops imx6ull_wdog_ops =
 {
     .init = imx6ull_wdog_init,
     .control = imx6ull_wdog_control,
diff --git a/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.h b/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.h
index 54b49b7300..aff593e120 100644
--- a/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.h
+++ b/bsp/nxp/imx/imx6ull-smart/drivers/drv_wdt.h
@@ -21,28 +21,28 @@
 #define RT_DEVICE_CTRL_WDT_START          (5) /* start watchdog */
 #define RT_DEVICE_CTRL_WDT_STOP           (6) /* stop watchdog */
 
-struct rt_watchdog_ops;
-struct rt_watchdog_device
+struct rwatchdog_ops;
+struct watchdog_device
 {
     struct rt_device parent;
-    const struct rt_watchdog_ops *ops;
+    const struct rwatchdog_ops *ops;
     const char                  *name;
     rt_uint32_t                 paddr;
     rt_uint32_t                 vaddr;
     rt_uint32_t                 irqno;
     wdog_config_t *config;
 };
-typedef struct rt_watchdog_device rt_watchdog_t;
+typedef struct watchdog_device watchdog_t;
 
-struct rt_watchdog_ops
+struct rwatchdog_ops
 {
-    rt_err_t (*init)(rt_watchdog_t *wdt);
-    rt_err_t (*control)(rt_watchdog_t *wdt, int cmd, void *arg);
+    rt_err_t (*init)(watchdog_t *wdt);
+    rt_err_t (*control)(watchdog_t *wdt, int cmd, void *arg);
 };
 
-rt_err_t rt_hw_watchdog_register(rt_watchdog_t *wdt,
-                                 const char    *name,
-                                 rt_uint32_t    flag,
-                                 void          *data);
+rt_err_t watchdog_register( watchdog_t      *wdt,
+                            const char      *name,
+                            rt_uint32_t      flag,
+                            void            *data);
 
 #endif /* __WATCHDOG_H__ */