diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
index b8c229ae3..f8cc5f191 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/board/linker_scripts/link.lds
@@ -226,7 +226,7 @@ SECTIONS
     __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
   } > m_nocache
   . = __noncachedata_init_end__;
-  .ncache :
+  .ncache(NOLOAD):
   {
     *(NonCacheable)
     . = ALIGN(4);
diff --git a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
index 02b8e1933..098d3bbdc 100644
--- a/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
+++ b/Ubiquitous/RT-Thread_Fusion_XiUOS/aiit_board/xidatong/rtconfig.py
@@ -53,6 +53,9 @@ if PLATFORM == 'gcc':
     CPATH = ''
     LPATH = ''
 
+    AFLAGS += ' -D__STARTUP_INITIALIZE_NONCACHEDATA'
+    AFLAGS += ' -D__STARTUP_CLEAR_BSS'
+
     if BUILD == 'debug':
         CFLAGS += ' -gdwarf-2'
         AFLAGS += ' -gdwarf-2'