ath9k_hw: Configure xpa bias level for AR9485

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

@@ -3450,9 +3450,15 @@ static s32 ar9003_hw_xpa_bias_level_get(struct ath_hw *ah, bool is2ghz)
 static void ar9003_hw_xpa_bias_level_apply(struct ath_hw *ah, bool is2ghz)
 {
 	int bias = ar9003_hw_xpa_bias_level_get(ah, is2ghz);
-	REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, bias);
-	REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPABIASLVL_MSB, bias >> 2);
-	REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPASHORT2GND, 1);
+
+	if (AR_SREV_9485(ah))
+		REG_RMW_FIELD(ah, AR_CH0_TOP2, AR_CH0_TOP2_XPABIASLVL, bias);
+	else {
+		REG_RMW_FIELD(ah, AR_CH0_TOP, AR_CH0_TOP_XPABIASLVL, bias);
+		REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPABIASLVL_MSB,
+			      bias >> 2);
+		REG_RMW_FIELD(ah, AR_CH0_THERM, AR_CH0_THERM_XPASHORT2GND, 1);
+	}
 }
 
 static u32 ar9003_hw_ant_ctrl_common_get(struct ath_hw *ah, bool is2ghz)

drivers/net/wireless/ath/ath9k/ar9003_phy.h

@@ -584,6 +584,10 @@
 #define AR_PHY_65NM_CH2_RXTX1       0x16900
 #define AR_PHY_65NM_CH2_RXTX2       0x16904
 
+#define AR_CH0_TOP2 (AR_SREV_9485(ah) ? 0x00016284 : 0x0001628c)
+#define AR_CH0_TOP2_XPABIASLVL		0xf000
+#define AR_CH0_TOP2_XPABIASLVL_S	12
+
 #define AR_PHY_RX1DB_BIQUAD_LONG_SHIFT		0x00380000
 #define AR_PHY_RX1DB_BIQUAD_LONG_SHIFT_S	19
 #define AR_PHY_RX6DB_BIQUAD_LONG_SHIFT		0x00c00000