diff --git a/sys/arm/conf/AVILA b/sys/arm/conf/AVILA
index 8e617758a59..2c419cc35e5 100644
--- a/sys/arm/conf/AVILA
+++ b/sys/arm/conf/AVILA
@@ -102,12 +102,14 @@ device          random          # Entropy device
 # Wireless NIC cards
 device		wlan		# 802.11 support
 options		IEEE80211_DEBUG
+options		IEEE80211_SUPPORT_TDMA
 device		wlan_wep	# 802.11 WEP support
 device		wlan_ccmp	# 802.11 CCMP support
 device		wlan_tkip	# 802.11 TKIP support
 device		wlan_xauth
 
 device		ath		# Atheros pci/cardbus NIC's
+options		ATH_SUPPORT_TDMA
 options 	ATH_DEBUG
 options		ATH_DIAGAPI
 #options		ATH_TX99_DIAG
diff --git a/sys/arm/conf/CAMBRIA b/sys/arm/conf/CAMBRIA
index 73a92ca6c0d..c9a44c9ca0f 100644
--- a/sys/arm/conf/CAMBRIA
+++ b/sys/arm/conf/CAMBRIA
@@ -101,12 +101,14 @@ device          random          # Entropy device
 # Wireless NIC cards
 device		wlan		# 802.11 support
 options		IEEE80211_DEBUG
+options		IEEE80211_SUPPORT_TDMA
 device		wlan_wep	# 802.11 WEP support
 device		wlan_ccmp	# 802.11 CCMP support
 device		wlan_tkip	# 802.11 TKIP support
 device		wlan_xauth
 
 device		ath		# Atheros pci/cardbus NIC's
+options		ATH_SUPPORT_TDMA
 options 	ATH_DEBUG
 options		ATH_DIAGAPI
 #options		ATH_TX99_DIAG