diff --git a/libcpu/arm/cortex-m4/cpuport.c b/libcpu/arm/cortex-m4/cpuport.c
index 1d2184c2d7..18f027895b 100644
--- a/libcpu/arm/cortex-m4/cpuport.c
+++ b/libcpu/arm/cortex-m4/cpuport.c
@@ -1,11 +1,7 @@
 /*
- * File      : cpuport.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -23,7 +19,7 @@
 #include <rtthread.h>
 
 #if               /* ARMCC */ (  (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP ))    \
-                  /* Clang */ || (defined ( __CLANG_ARM ) && defined ( __TARGET_FPU_VFP )) \
+                  /* Clang */ || (defined ( __CLANG_ARM ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) \
                   /* IAR */   || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ ))        \
                   /* GNU */   || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) )
 #define USE_FPU   1
diff --git a/libcpu/arm/cortex-m7/cpuport.c b/libcpu/arm/cortex-m7/cpuport.c
index 1d2184c2d7..18f027895b 100644
--- a/libcpu/arm/cortex-m7/cpuport.c
+++ b/libcpu/arm/cortex-m7/cpuport.c
@@ -1,11 +1,7 @@
 /*
- * File      : cpuport.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ * Copyright (c) 2006-2018, RT-Thread Development Team
  *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
+ * SPDX-License-Identifier: Apache-2.0
  *
  * Change Logs:
  * Date           Author       Notes
@@ -23,7 +19,7 @@
 #include <rtthread.h>
 
 #if               /* ARMCC */ (  (defined ( __CC_ARM ) && defined ( __TARGET_FPU_VFP ))    \
-                  /* Clang */ || (defined ( __CLANG_ARM ) && defined ( __TARGET_FPU_VFP )) \
+                  /* Clang */ || (defined ( __CLANG_ARM ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) \
                   /* IAR */   || (defined ( __ICCARM__ ) && defined ( __ARMVFP__ ))        \
                   /* GNU */   || (defined ( __GNUC__ ) && defined ( __VFP_FP__ ) && !defined(__SOFTFP__)) )
 #define USE_FPU   1