Reported as http://madwifi.org/ticket/1783 ...

--- madwifi-ng-r3314-20080131/ath_hal/ah_os.h~	2007-11-23 20:08:18.000000000 +1030
+++ madwifi-ng-r3314-20080131/ath_hal/ah_os.h	2008-02-11 23:12:11.000000000 +1030
@@ -168,7 +168,7 @@
  * for the second time, so the native implementations should be preferred.
  */
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,12)) && \
-	!defined(CONFIG_GENERIC_IOMAP) && (AH_BYTE_ORDER == AH_BIG_ENDIAN) && \
+	!defined(CONFIG_GENERIC_IOMAP) && \
 	!defined(__mips__) && !defined(__hppa__) && !defined(__powerpc__)
 # ifndef iowrite32be
 #  define iowrite32be(_val, _addr) iowrite32(swab32((_val)), (_addr))