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- --- a/drivers/net/wireless/ath/ath9k/hw.c
- +++ b/drivers/net/wireless/ath/ath9k/hw.c
- @@ -246,6 +246,19 @@ void ath9k_hw_get_channel_centers(struct
- centers->synth_center + (extoff * HT40_CHANNEL_CENTER_SHIFT);
- }
-
- +static inline void ath9k_hw_disable_pll_lock_detect(struct ath_hw *ah)
- +{
- + /* On AR9330 and AR9340 devices, some PHY registers must be
- + * tuned to gain better stability/performance. These registers
- + * might be changed while doing wlan reset so the registers must
- + * be reprogrammed after each reset.
- + */
- + REG_CLR_BIT(ah, AR_PHY_USB_CTRL1, BIT(20));
- + REG_RMW(ah, AR_PHY_USB_CTRL2,
- + (1 << 21) | (0xf << 22),
- + (1 << 21) | (0x3 << 22));
- +}
- +
- /******************/
- /* Chip Revisions */
- /******************/
- @@ -1386,6 +1399,9 @@ static bool ath9k_hw_set_reset(struct at
- if (AR_SREV_9100(ah))
- udelay(50);
-
- + if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
- + ath9k_hw_disable_pll_lock_detect(ah);
- +
- return true;
- }
-
- @@ -1485,6 +1501,9 @@ static bool ath9k_hw_chip_reset(struct a
- ar9003_hw_internal_regulator_apply(ah);
- ath9k_hw_init_pll(ah, chan);
-
- + if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
- + ath9k_hw_disable_pll_lock_detect(ah);
- +
- return true;
- }
-
- @@ -1786,8 +1805,14 @@ static int ath9k_hw_do_fastcc(struct ath
- if (AR_SREV_9271(ah))
- ar9002_hw_load_ani_reg(ah, chan);
-
- + if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
- + ath9k_hw_disable_pll_lock_detect(ah);
- +
- return 0;
- fail:
- + if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
- + ath9k_hw_disable_pll_lock_detect(ah);
- +
- return -EINVAL;
- }
-
- @@ -2041,6 +2066,9 @@ int ath9k_hw_reset(struct ath_hw *ah, st
- ath9k_hw_set_radar_params(ah);
- }
-
- + if (AR_SREV_9330(ah) || AR_SREV_9340(ah))
- + ath9k_hw_disable_pll_lock_detect(ah);
- +
- return 0;
- }
- EXPORT_SYMBOL(ath9k_hw_reset);
- --- a/drivers/net/wireless/ath/ath9k/phy.h
- +++ b/drivers/net/wireless/ath/ath9k/phy.h
- @@ -48,6 +48,9 @@
- #define AR_PHY_PLL_CONTROL 0x16180
- #define AR_PHY_PLL_MODE 0x16184
-
- +#define AR_PHY_USB_CTRL1 0x16c84
- +#define AR_PHY_USB_CTRL2 0x16c88
- +
- enum ath9k_ant_div_comb_lna_conf {
- ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2,
- ATH_ANT_DIV_COMB_LNA2,
|
