diff --git a/public/ape_spu/top/src/ape_top.s.c b/public/ape_spu/top/src/ape_top.s.c
index b811a32..bde0c75 100644
--- a/public/ape_spu/top/src/ape_top.s.c
+++ b/public/ape_spu/top/src/ape_top.s.c
@@ -23,6 +23,9 @@
 #include "pet_sm_mgt.h"
 #include "osp_init.h"
 
+extern void Mem_Init(void);
+
+
 static int32_t gCoreId = 0;
 ALWAYS_INLINE int32_t get_core_id(void)
 {
@@ -51,12 +54,12 @@ int32_t soc_drv_init()
     int apeId = get_core_id();
     if (0 == apeId)
     {
-        pet_sm_init();
-
         osp_var_init();
+        pet_sm_init();
+        Mem_Init();     /* call phy function to mem sm */
     }
 
-	return 0;
+    return 0;
 }
 
 
diff --git a/public/ape_spu/top/src/phy_init.s.c b/public/ape_spu/top/src/phy_init.s.c
index 573ff48..dda56b9 100644
--- a/public/ape_spu/top/src/phy_init.s.c
+++ b/public/ape_spu/top/src/phy_init.s.c
@@ -30,3 +30,9 @@ void phy_init(void)
     return;
 }
 
+void Mem_Init(void)
+{
+    return ;
+}
+
+