diff --git a/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/gicv2/gicv2_common_opa.h b/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/gicv2/gicv2_common_opa.h
index a2ecaaf2c..c3a04e250 100644
--- a/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/gicv2/gicv2_common_opa.h
+++ b/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/gicv2/gicv2_common_opa.h
@@ -27,17 +27,6 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-/*
- * Copyright (c) 2020 AIIT XUOS Lab
- * XiUOS is licensed under Mulan PSL v2.
- * You can use this software according to the terms and conditions of the Mulan PSL v2.
- * You may obtain a copy of Mulan PSL v2 at:
- *        http://license.coscl.org.cn/MulanPSL2
- * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
- * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
- * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
- * See the Mulan PSL v2 for more details.
- */
 /**
  * @file gicv2_common_opa.c
  * @brief gicv2 operation
diff --git a/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/spinlock.c b/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/spinlock.c
index e3818886c..89bec7570 100644
--- a/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/spinlock.c
+++ b/Ubiquitous/XiZi_AIoT/hardkernel/intr/arm/armv7-a/cortex-a9/spinlock.c
@@ -9,6 +9,24 @@
  * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
  * See the Mulan PSL v2 for more details.
  */
+/**
+ * @file spinlock.c
+ * @brief spinlock c interfaces
+ * @version 3.0
+ * @author AIIT XUOS Lab
+ * @date 2023.08.25
+ */
+
+/*************************************************
+File name: spinlock.c
+Description: spinlock c interfaces
+Others:
+History:
+1. Date: 2023-08-28
+Author: AIIT XUOS Lab
+Modification:
+1. add return of _spinlock_lock
+*************************************************/
 #include <stdint.h>
 #include <string.h>