diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 03100e3cdfc4..5190a8808fa1 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -570,15 +570,6 @@ static void ath9k_init_crypto(struct ath9k_htc_priv *priv)
 	for (i = 0; i < common->keymax; i++)
 		ath9k_hw_keyreset(priv->ah, (u16) i);
 
-	/*
-	 * Check whether the separate key cache entries
-	 * are required to handle both tx+rx MIC keys.
-	 * With split mic keys the number of stations is limited
-	 * to 27 otherwise 59.
-	 */
-	if (ath9k_hw_getcapability(priv->ah, ATH9K_CAP_TKIP_SPLIT, 0, NULL))
-		common->splitmic = 1;
-
 	/* turn on mcast key search if possible */
 	if (!ath9k_hw_getcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH, 0, NULL))
 		(void)ath9k_hw_setcapability(priv->ah, ATH9K_CAP_MCAST_KEYSRCH,
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index f1d9918a11bd..a5203b137346 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2259,9 +2259,6 @@ bool ath9k_hw_getcapability(struct ath_hw *ah, enum ath9k_capability_type type,
 			    u32 capability, u32 *result)
 {
 	switch (type) {
-	case ATH9K_CAP_TKIP_SPLIT:
-		return (ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA) ?
-			false : true;
 	case ATH9K_CAP_MCAST_KEYSRCH:
 		switch (capability) {
 		case 0:
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 5574daa28b4d..28fca9d77980 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -207,7 +207,6 @@ enum ath9k_hw_caps {
 };
 
 enum ath9k_capability_type {
-	ATH9K_CAP_TKIP_SPLIT,
 	ATH9K_CAP_MCAST_KEYSRCH,
 	ATH9K_CAP_DS
 };
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index f66b357ba4d1..4bdf8c814f57 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -385,7 +385,7 @@ static void ath9k_init_crypto(struct ath_softc *sc)
 	 * With split mic keys the number of stations is limited
 	 * to 27 otherwise 59.
 	 */
-	if (ath9k_hw_getcapability(sc->sc_ah, ATH9K_CAP_TKIP_SPLIT, 0, NULL))
+	if (!(sc->sc_ah->misc_mode & AR_PCU_MIC_NEW_LOC_ENA))
 		common->splitmic = 1;
 
 	/* turn on mcast key search if possible */