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authorFelix Fietkau <nbd@openwrt.org>2011-07-09 11:12:49 +0700
committerJohn W. Linville <linville@tuxdriver.com>2011-07-11 15:02:12 -0400
commit087b6ff682ff62c49c9a36ddfd24fc781367b1d1 (patch)
tree5f9c20dd265cd72d2a47d52600c3f14d1fdb9113
parent906c720527b23ba8c99683ea5f9ea1f9d7749e8c (diff)
ath9k_hw: fix MAC clock rate for AR9287 v1.3+
This chip uses the async FIFO feature and runs the MAC at 117 MHz Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index f69c62e36ed8..d4084d89c6f7 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -87,7 +87,10 @@ static void ath9k_hw_set_clockrate(struct ath_hw *ah)
struct ath_common *common = ath9k_hw_common(ah);
unsigned int clockrate;
- if (!ah->curchan) /* should really check for CCK instead */
+ /* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
+ if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
+ clockrate = 117;
+ else if (!ah->curchan) /* should really check for CCK instead */
clockrate = ATH9K_CLOCK_RATE_CCK;
else if (conf->channel->band == IEEE80211_BAND_2GHZ)
clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;