ath9k: Fix rx data corruption

Setting bit 20 and 25 of 0x8344 can cause occasional rx data
corruption, clear them to fix this issue.

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

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index af5bb50a2e8b6ce8cd8bdc5da46a213c01354721..4731ad2d999698dda32022e62f26433501a797ac 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1273,6 +1273,15 @@ static void ath9k_hw_override_ini(struct ath_hw *ah,
         */
        REG_SET_BIT(ah, AR_DIAG_SW, (AR_DIAG_RX_DIS | AR_DIAG_RX_ABORT));
 
+       if (AR_SREV_9280_10_OR_LATER(ah)) {
+               val = REG_READ(ah, AR_PCU_MISC_MODE2) &
+                              (~AR_PCU_MISC_MODE2_HWWAR1);
+
+               if (AR_SREV_9287_10_OR_LATER(ah))
+                       val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
+
+               REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
+       }
 
        if (!AR_SREV_5416_20_OR_LATER(ah) ||
            AR_SREV_9280_10_OR_LATER(ah))