ath9k: Updates for AR9287_12 version of chipset.

Enable AsyncFIFO and AGGWEP for AR9287_12 and later revisions only.
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/hw.c

@@ -2392,7 +2392,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 	if (AR_SREV_9280_10_OR_LATER(ah))
 		REG_SET_BIT(ah, AR_GPIO_INPUT_EN_VAL, AR_GPIO_JTAG_DISABLE);
 
-	if (AR_SREV_9287_10_OR_LATER(ah)) {
+	if (AR_SREV_9287_12_OR_LATER(ah)) {
 		/* Enable ASYNC FIFO */
 		REG_SET_BIT(ah, AR_MAC_PCU_ASYNC_FIFO_REG3,
 				AR_MAC_PCU_ASYNC_FIFO_REG3_DATAPATH_SEL);
@@ -2478,7 +2478,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ath9k_hw_init_user_settings(ah);
 
-	if (AR_SREV_9287_10_OR_LATER(ah)) {
+	if (AR_SREV_9287_12_OR_LATER(ah)) {
 		REG_WRITE(ah, AR_D_GBL_IFS_SIFS,
 			  AR_D_GBL_IFS_SIFS_ASYNC_FIFO_DUR);
 		REG_WRITE(ah, AR_D_GBL_IFS_SLOT,
@@ -2494,7 +2494,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		REG_RMW_FIELD(ah, AR_AHB_MODE, AR_AHB_CUSTOM_BURST_EN,
 			      AR_AHB_CUSTOM_BURST_ASYNC_FIFO_VAL);
 	}
-	if (AR_SREV_9287_10_OR_LATER(ah)) {
+	if (AR_SREV_9287_12_OR_LATER(ah)) {
 		REG_SET_BIT(ah, AR_PCU_MISC_MODE2,
 				AR_PCU_MISC_MODE2_ENABLE_AGGWEP);
 	}

drivers/net/wireless/ath/ath9k/reg.h

@@ -744,6 +744,7 @@
 #define AR_SREV_VERSION_9287                  0x180
 #define AR_SREV_REVISION_9287_10              0
 #define AR_SREV_REVISION_9287_11              1
+#define AR_SREV_REVISION_9287_12              2
 #define AR_SREV_VERSION_9271			0x140
 #define AR_SREV_REVISION_9271_10		0
 #define AR_SREV_REVISION_9271_11		1
@@ -817,7 +818,13 @@
 	(((_ah)->hw_version.macVersion > AR_SREV_VERSION_9287) || \
 	 (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9287) && \
 	  ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9287_11)))
-
+#define AR_SREV_9287_12(_ah) \
+	(((_ah)->hw_version.macVersion == AR_SREV_VERSION_9287) && \
+	 ((_ah)->hw_version.macRev == AR_SREV_REVISION_9287_12))
+#define AR_SREV_9287_12_OR_LATER(_ah) \
+	(((_ah)->hw_version.macVersion > AR_SREV_VERSION_9287) || \
+	 (((_ah)->hw_version.macVersion == AR_SREV_VERSION_9287) && \
+	  ((_ah)->hw_version.macRev >= AR_SREV_REVISION_9287_12)))
 #define AR_SREV_9271(_ah) \
     (((_ah))->hw_version.macVersion == AR_SREV_VERSION_9271)
 #define AR_SREV_9271_10(_ah) \