diff --git a/apps/codecs/demac/libdemac/demac_config.h b/apps/codecs/demac/libdemac/demac_config.h
index 7388aa1059..c908c3ea10 100644
--- a/apps/codecs/demac/libdemac/demac_config.h
+++ b/apps/codecs/demac/libdemac/demac_config.h
@@ -48,24 +48,20 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
 #define FILTER256_IRAM
 #endif
 
-#if CONFIG_CPU == PP5002
+#if CONFIG_CPU == PP5002 || defined(CPU_S5L870X)
 /* Code in IRAM for speed, not enough IRAM for the insane filter buffer. */
 #define ICODE_SECTION_DEMAC_ARM   .icode
 #define ICODE_ATTR_DEMAC          ICODE_ATTR
 #define IBSS_ATTR_DEMAC_INSANEBUF
-#elif CONFIG_CPU == PP5020
-/* Not enough IRAM for the insane filter buffer. */
+#elif defined(CPU_PP502x)
+/* Insane filter buffer not in IRAM due to division table. */
 #define ICODE_SECTION_DEMAC_ARM   .text
 #define ICODE_ATTR_DEMAC
 #define IBSS_ATTR_DEMAC_INSANEBUF
-#elif defined(CPU_S5L870X)
-#define ICODE_SECTION_DEMAC_ARM   .icode
-#define ICODE_ATTR_DEMAC          ICODE_ATTR
-#define IBSS_ATTR_DEMAC_INSANEBUF
 #else
 #define ICODE_SECTION_DEMAC_ARM   .text
 #define ICODE_ATTR_DEMAC
-#define IBSS_ATTR_DEMAC_INSANEBUF
+#define IBSS_ATTR_DEMAC_INSANEBUF IBSS_ATTR
 #endif
 
 #else /* !ROCKBOX */