From 087b6ff682ff62c49c9a36ddfd24fc781367b1d1 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 9 Jul 2011 11:12:49 +0700 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index f69c62e..d4084d8 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; -- 2.7.4