diff --git a/litex/soc/integration/cpu_interface.py b/litex/soc/integration/cpu_interface.py
index ffad5c2f2..524545448 100644
--- a/litex/soc/integration/cpu_interface.py
+++ b/litex/soc/integration/cpu_interface.py
@@ -144,9 +144,10 @@ def get_csr_header(regions, constants, with_access_functions=True):
         else:
             value = str(value)
             ctype = "int"
-        r += "#define "+name+" "+value+"\n"
-        r += "static inline "+ctype+" "+name.lower()+"_read(void) {\n"
-        r += "\treturn "+value+";\n}\n"
+            r += "#define "+name+" "+value+"\n"
+            if with_access_functions:
+                r += "static inline "+ctype+" "+name.lower()+"_read(void) {\n"
+                r += "\treturn "+value+";\n}\n"
 
     r += "\n#endif\n"
     return r