diff --git a/gas/ChangeLog b/gas/ChangeLog
index 72b1fc886a..a45e12e914 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,8 @@
+2020-09-10  Cooper Qu  <cooper.qu@linux.alibaba.com>
+
+	* config/tc-csky.c (md_begin): Enable extend lrw by default for
+	CK802, CK803 and CK860.
+
 2020-09-10  Cooper Qu  <cooper.qu@linux.alibaba.com>
 
 	* config/tc-csky.c (struct csky_cpu_info): Add new members
diff --git a/gas/config/tc-csky.c b/gas/config/tc-csky.c
index cafadcc942..3518b2a2fd 100644
--- a/gas/config/tc-csky.c
+++ b/gas/config/tc-csky.c
@@ -1779,7 +1779,10 @@ md_begin (void)
 
   if (do_extend_lrw == -1)
     {
-      if (IS_CSKY_ARCH_801 (mach_flag))
+      if ((mach_flag & CSKY_ARCH_MASK) == CSKY_ARCH_801
+	  || (mach_flag & CSKY_ARCH_MASK) == CSKY_ARCH_802
+	  || (mach_flag & CSKY_ARCH_MASK) == CSKY_ARCH_803
+	  || (mach_flag & CSKY_ARCH_MASK) == CSKY_ARCH_860)
 	do_extend_lrw = 1;
       else
 	do_extend_lrw = 0;