diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index a0ca1eb..eb18b63 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1089,7 +1089,10 @@ static void ar9003_hw_set_nf_limits(struct ath_hw *ah)
 {
 	ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ;
 	ah->nf_2g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_2GHZ;
-	ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
+	if (AR_SREV_9330(ah))
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9330_2GHZ;
+	else
+		ah->nf_2g.nominal = AR_PHY_CCA_NOM_VAL_9300_2GHZ;
 	ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ;
 	ah->nf_5g.min = AR_PHY_CCA_MIN_GOOD_VAL_9300_5GHZ;
 	ah->nf_5g.nominal = AR_PHY_CCA_NOM_VAL_9300_5GHZ;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index 443090d..d259278 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -332,6 +332,8 @@
 #define AR_PHY_CCA_MAX_GOOD_VAL_9300_2GHZ     -95
 #define AR_PHY_CCA_MAX_GOOD_VAL_9300_5GHZ     -100
 
+#define AR_PHY_CCA_NOM_VAL_9330_2GHZ          -118
+
 /*
  * AGC Field Definitions
  */