diff --git a/package/kernel/mac80211/patches/333-ath9k-enable-hw-manual-peak-calibration-for-QCA9561.patch b/package/kernel/mac80211/patches/333-ath9k-enable-hw-manual-peak-calibration-for-QCA9561.patch
new file mode 100644
index 00000000000..faf6cdc1635
--- /dev/null
+++ b/package/kernel/mac80211/patches/333-ath9k-enable-hw-manual-peak-calibration-for-QCA9561.patch
@@ -0,0 +1,33 @@
+From: Miaoqing Pan <miaoqing@qca.qualcomm.com>
+Date: Tue, 1 Sep 2015 10:56:09 +0800
+Subject: [PATCH] ath9k: enable hw manual peak calibration for QCA9561
+
+This patch fix https://lists.openwrt.org/pipermail/openwrt-devel/
+2015-August/034979.html. As the peak detect calibration is set
+incorrectly.
+
+Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com>
+---
+
+--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+@@ -1249,7 +1249,8 @@ static void ar9003_hw_manual_peak_cal(st
+ 		REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain),
+ 			      AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR, 0x0);
+ 
+-	if (AR_SREV_9003_PCOEM(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah)) {
++	if (AR_SREV_9003_PCOEM(ah) || AR_SREV_9550(ah) || AR_SREV_9531(ah) ||
++	    AR_SREV_9561(ah)) {
+ 		if (is_2g)
+ 			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain),
+ 				      AR_PHY_65NM_RXRF_AGC_AGC2G_DBDAC_OVR,
+@@ -1640,7 +1641,8 @@ static bool ar9003_hw_init_cal_soc(struc
+ 
+ skip_tx_iqcal:
+ 	if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) {
+-		if (AR_SREV_9330_11(ah) || AR_SREV_9531(ah) || AR_SREV_9550(ah)) {
++		if (AR_SREV_9330_11(ah) || AR_SREV_9531(ah) || AR_SREV_9550(ah) ||
++		    AR_SREV_9561(ah)) {
+ 			for (i = 0; i < AR9300_MAX_CHAINS; i++) {
+ 				if (!(ah->rxchainmask & (1 << i)))
+ 					continue;