ath9k: Read spur channel information from eeprom for AR9485

Also spur channel count and range is different for AR9485.

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/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index bce1fdb1660a4ee9ad5b10aa70988957116f372f..da4a571304dacf0ef682773083b64f75bb3ecbc2 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -134,21 +134,50 @@ static void ar9003_hw_spur_mitigate_mrc_cck(struct ath_hw *ah,
        static const u32 spur_freq[4] = { 2420, 2440, 2464, 2480 };
        int cur_bb_spur, negative = 0, cck_spur_freq;
        int i;
+       int range, max_spur_cnts, synth_freq;
+       u8 *spur_fbin_ptr = NULL;
 
        /*
         * Need to verify range +/- 10 MHz in control channel, otherwise spur
         * is out-of-band and can be ignored.
         */
 
-       for (i = 0; i < 4; i++) {
+       if (AR_SREV_9485(ah)) {
+               spur_fbin_ptr = ar9003_get_spur_chan_ptr(ah,
+                                                        IS_CHAN_2GHZ(chan));
+               if (spur_fbin_ptr[0] == 0) /* No spur */
+                       return;
+               max_spur_cnts = 5;
+               if (IS_CHAN_HT40(chan)) {
+                       range = 19;
+                       if (REG_READ_FIELD(ah, AR_PHY_GEN_CTRL,
+                                          AR_PHY_GC_DYN2040_PRI_CH) == 0)
+                               synth_freq = chan->channel + 10;
+                       else
+                               synth_freq = chan->channel - 10;
+               } else {
+                       range = 10;
+                       synth_freq = chan->channel;
+               }
+       } else {
+               range = 10;
+               max_spur_cnts = 4;
+               synth_freq = chan->channel;
+       }
+
+       for (i = 0; i < max_spur_cnts; i++) {
                negative = 0;
-               cur_bb_spur = spur_freq[i] - chan->channel;
+               if (AR_SREV_9485(ah))
+                       cur_bb_spur = FBIN2FREQ(spur_fbin_ptr[i],
+                                       IS_CHAN_2GHZ(chan)) - synth_freq;
+               else
+                       cur_bb_spur = spur_freq[i] - synth_freq;
 
                if (cur_bb_spur < 0) {
                        negative = 1;
                        cur_bb_spur = -cur_bb_spur;
                }
-               if (cur_bb_spur < 10) {
+               if (cur_bb_spur < range) {
                        cck_spur_freq = (int)((cur_bb_spur << 19) / 11);
 
                        if (negative == 1)