ath9k_hw: enable CRC check of descriptors for AR9003

Enable CRC check on the descriptor fetched from host on AR9003 upon reseting the TX queue. Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
git-mirror · Apr 16, 2010 · 79de237 · 79de237
1 parent a9616f4
commit 79de237
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diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
@@ -569,6 +569,9 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 			  AR_D_MISC_POST_FR_BKOFF_DIS);
 	}
 
+	if (AR_SREV_9300_20_OR_LATER(ah))
+		REG_WRITE(ah, AR_Q_DESC_CRCCHK, AR_Q_DESC_CRCCHK_EN);
+
 	if (qi->tqi_qflags & TXQ_FLAG_TXOKINT_ENABLE)
 		ah->txok_interrupt_mask |= 1 << q;
 	else

diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
@@ -478,6 +478,10 @@
 #define AR_Q_RDYTIMESHDN    0x0a40
 #define AR_Q_RDYTIMESHDN_M  0x000003FF
 
+/* MAC Descriptor CRC check */
+#define AR_Q_DESC_CRCCHK    0xa44
+/* Enable CRC check on the descriptor fetched from host */
+#define AR_Q_DESC_CRCCHK_EN 1
 
 #define AR_NUM_DCU      10
 #define AR_DCU_0        0x0001