From cb07e5fb24afebdf233847da551d3ede80727345 Mon Sep 17 00:00:00 2001
From: shaojinchun <shaojinchun@rt-thread.com>
Date: Thu, 26 Sep 2019 18:13:07 +0800
Subject: 开放spinlock相关函数
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---
 libcpu/arm/cortex-a/cpu.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libcpu/arm/cortex-a')

diff --git a/libcpu/arm/cortex-a/cpu.c b/libcpu/arm/cortex-a/cpu.c
index 6b129f89ee..7c6bf58a4b 100644
--- a/libcpu/arm/cortex-a/cpu.c
+++ b/libcpu/arm/cortex-a/cpu.c
@@ -14,6 +14,7 @@
 #include <board.h>
 
 #ifdef RT_USING_SMP
+
 int rt_hw_cpu_id(void)
 {
     int cpu_id;
@@ -25,6 +26,11 @@ int rt_hw_cpu_id(void)
     return cpu_id;
 };
 
+void rt_hw_spin_lock_init(rt_hw_spinlock_t *lock)
+{
+    lock->slock = 0;
+}
+
 void rt_hw_spin_lock(rt_hw_spinlock_t *lock)
 {
     unsigned long tmp;
-- 
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