--- if_re.c.orig	2022-01-17 17:01:39 UTC
+++ if_re.c
@@ -4355,6 +4355,7 @@
                 sc->re_dash = re_check_dash(sc);
 
         if (sc->re_dash) {
+#if defined(__amd64__) || defined(__i386__)
                 if (HW_DASH_SUPPORT_TYPE_3(sc)) {
                         u_int64_t CmacMemPhysAddress;
                         bus_space_handle_t cmac_ioaddr;
@@ -4374,6 +4375,9 @@
                                         sc->re_mapped_cmac_handle = cmac_ioaddr;
                         }
                 }
+#else
+                sc->re_dash = 0;
+#endif
         }
 
         switch(sc->re_type) {