[BSP/Phytium]适配最新裸机驱动

1 files changed, 0 insertions, 30 deletions

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)
 {