ath9k: configure RF channel frequency for AR9330

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 1194eeb69633..a0ca1ebe2986 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -75,7 +75,19 @@ static int ar9003_hw_set_channel(struct ath_hw *ah, struct ath9k_channel *chan)
         freq = centers.synth_center;
 
         if (freq < 4800) {     /* 2 GHz, fractional mode */
-                if (AR_SREV_9485(ah)) {
+                if (AR_SREV_9330(ah)) {
+                        u32 chan_frac;
+                        u32 div;
+
+                        if (ah->is_clk_25mhz)
+                                div = 75;
+                        else
+                                div = 120;
+
+                        channelSel = (freq * 4) / div;
+                        chan_frac = (((freq * 4) % div) * 0x20000) / div;
+                        channelSel = (channelSel << 17) | chan_frac;
+                } else if (AR_SREV_9485(ah)) {
                         u32 chan_frac;
 
                         /*