diff --git a/bsp/imx6sx/cortex-a9/cpu/gic.h_old b/bsp/imx6sx/cortex-a9/cpu/gic.h_old
deleted file mode 100644
index 41a7727da2ced8719040c72900b91c23fa78668b..0000000000000000000000000000000000000000
--- a/bsp/imx6sx/cortex-a9/cpu/gic.h_old
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * File      : gic.h, ARM Generic Interrupt Controller
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2013, RT-Thread Develop 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
- *
- * Change Logs:
- * Date           Author       Notes
- * 2013-07-20     Bernard      first version
- */
-
-#ifndef __GIC_H__
-#define __GIC_H__
-
-int arm_gic_dist_init(rt_uint32_t index, rt_uint32_t dist_base, int irq_start);
-int arm_gic_cpu_init(rt_uint32_t index, rt_uint32_t cpu_base);
-
-void arm_gic_mask(rt_uint32_t index, int irq);
-void arm_gic_umask(rt_uint32_t index, int irq);
-void arm_gic_set_cpu(rt_uint32_t index, int irq, unsigned int cpumask);
-void arm_gic_set_group(rt_uint32_t index, int vector, int group);
-
-int arm_gic_get_active_irq(rt_uint32_t index);
-void arm_gic_ack(rt_uint32_t index, int irq);
-
-void arm_gic_trigger(rt_uint32_t index, int target_cpu, int irq);
-void arm_gic_clear_sgi(rt_uint32_t index, int target_cpu, int irq);
-
-void arm_gic_dump_type(rt_uint32_t index);
-
-#endif
-