From 0e3c4bd26b34a54910db4da6b0a99bc470c65b08 Mon Sep 17 00:00:00 2001
From: 张衍 <zhangyan1491@phytium.com.cn>
Date: Mon, 22 Jul 2024 02:33:39 +0000
Subject: [BSP/Phytium]适配最新裸机驱动
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 libcpu/aarch64/common/cpuport.c         | 43 +++++++++++++++++++++++++++++++++
 libcpu/aarch64/common/include/cpuport.h | 30 -----------------------
 2 files changed, 43 insertions(+), 30 deletions(-)
 create mode 100644 libcpu/aarch64/common/cpuport.c

(limited to 'libcpu')

diff --git a/libcpu/aarch64/common/cpuport.c b/libcpu/aarch64/common/cpuport.c
new file mode 100644
index 0000000000..4c1bf01cf3
--- /dev/null
+++ b/libcpu/aarch64/common/cpuport.c
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2024-06-21     Zhangyan     first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <board.h>
+
+#ifdef RT_USING_CPU_FFS
+/**
+ * This function finds the first bit set (beginning with the least significant bit)
+ * in value and return the index of that bit.
+ *
+ * Bits are numbered starting at 1 (the least significant bit).  A return value of
+ * zero from any of these functions means that the argument was zero.
+ *
+ * @return return the index of the first bit set. If value is 0, then this function
+ * shall return 0.
+ */
+int __rt_ffs(int value)
+{
+#ifdef __GNUC__
+    return __builtin_ffs(value);
+#else
+    __asm__ volatile (
+        "rbit w1, %w0\n"
+        "cmp %w0, 0\n"
+        "clz w1, w1\n"
+        "csinc %w0, wzr, w1, eq\n"
+        : "=r"(value)
+        : "0"(value)
+    );
+    return value;
+#endif
+}
+
+#endif /* RT_USING_CPU_FFS */
\ No newline at end of file
diff --git a/libcpu/aarch64/common/include/cpuport.h b/libcpu/aarch64/common/include/cpuport.h
index 217f477aaf..cbd04500a0 100644
--- a/libcpu/aarch64/common/include/cpuport.h
+++ b/libcpu/aarch64/common/include/cpuport.h
@@ -53,36 +53,6 @@ typedef struct
 
 void _thread_start(void);
 
-#ifdef RT_USING_CPU_FFS
-/**
- * This function finds the first bit set (beginning with the least significant bit)
- * in value and return the index of that bit.
- *
- * Bits are numbered starting at 1 (the least significant bit).  A return value of
- * zero from any of these functions means that the argument was zero.
- *
- * @return return the index of the first bit set. If value is 0, then this function
- * shall return 0.
- */
-rt_inline int __rt_ffs(int value)
-{
-#ifdef __GNUC__
-    return __builtin_ffs(value);
-#else
-    __asm__ volatile (
-        "rbit w1, %w0\n"
-        "cmp %w0, 0\n"
-        "clz w1, w1\n"
-        "csinc %w0, wzr, w1, eq\n"
-        : "=r"(value)
-        : "0"(value)
-    );
-    return value;
-#endif
-}
-
-#endif /* RT_USING_CPU_FFS */
-
 #ifdef ARCH_USING_HW_THREAD_SELF
 rt_inline struct rt_thread *rt_hw_thread_self(void)
 {
-- 
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