diff --git a/bsp/imxrt/libraries/drivers/drv_eth.c b/bsp/imxrt/libraries/drivers/drv_eth.c
index 5138792416..ecff2bb6ab 100644
--- a/bsp/imxrt/libraries/drivers/drv_eth.c
+++ b/bsp/imxrt/libraries/drivers/drv_eth.c
@@ -7,6 +7,7 @@
  * Date           Author       Notes
  * 2017-10-10     Tanek        the first version
  * 2019-5-10      misonyo      add DMA TX and RX function
+ * 2020-10-14     wangqiang    use phy device in phy monitor thread
  */
 
 #include <rtthread.h>
diff --git a/bsp/imxrt/libraries/peripherals/phyksz8081.c b/bsp/imxrt/libraries/peripherals/phyksz8081.c
index 88c041f4d1..3735965663 100644
--- a/bsp/imxrt/libraries/peripherals/phyksz8081.c
+++ b/bsp/imxrt/libraries/peripherals/phyksz8081.c
@@ -1,9 +1,11 @@
 /*
- * Copyright (c) 2015, Freescale Semiconductor, Inc.
- * Copyright 2016-2017 NXP
- * All rights reserved.
+ * Copyright (c) 2006-2020, RT-Thread Development Team
  *
- * SPDX-License-Identifier: BSD-3-Clause
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-14     wangqiang    the first version
  */
 
 #include <rtthread.h>
diff --git a/components/drivers/include/drivers/phy.h b/components/drivers/include/drivers/phy.h
index 9a9eaeb5dd..2d1ad9f91f 100644
--- a/components/drivers/include/drivers/phy.h
+++ b/components/drivers/include/drivers/phy.h
@@ -1,7 +1,15 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-14     wangqiang    the first version
+ */
 
-
-#ifndef __PHY_H___
-#define __PHY_H___
+#ifndef __PHY_H__
+#define __PHY_H__
 
 #include <rtthread.h>
 
diff --git a/components/drivers/include/drivers/phy_mdio.h b/components/drivers/include/drivers/phy_mdio.h
index a4a79f6e7a..d978ec2984 100644
--- a/components/drivers/include/drivers/phy_mdio.h
+++ b/components/drivers/include/drivers/phy_mdio.h
@@ -1,7 +1,15 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-14     wangqiang    the first version
+ */
 
-
-#ifndef __MDIO_H___
-#define __MDIO_H___
+#ifndef __MDIO_H__
+#define __MDIO_H__
 
 #include <rtthread.h>