package/mac80211/patches/550-ath9k_rifs_disable.patch

   1 --- a/drivers/net/wireless/ath/ath9k/hw.c
   2 +++ b/drivers/net/wireless/ath/ath9k/hw.c
   3 @@ -1326,6 +1326,16 @@ static void ath9k_hw_override_ini(struct
   4          * Necessary to avoid issues on AR5416 2.0
   5          */
   6         REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
   7 +
   8 +       /*
   9 +        * Disable RIFS search on some chips to avoid baseband
  10 +        * hang issues.
  11 +        */
  12 +       if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
  13 +               val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
  14 +               val &= ~AR_PHY_RIFS_INIT_DELAY;
  15 +               REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
  16 +       }
  17  }
  18
  19  static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
  20 --- a/drivers/net/wireless/ath/ath9k/phy.h
  21 +++ b/drivers/net/wireless/ath/ath9k/phy.h
  22 @@ -384,6 +384,9 @@ bool ath9k_hw_set_rf_regs(struct ath_hw
  23
  24  #define AR_PHY_HEAVY_CLIP_ENABLE         0x99E0
  25
  26 +#define AR_PHY_HEAVY_CLIP_FACTOR_RIFS    0x99EC
  27 +#define AR_PHY_RIFS_INIT_DELAY         0x03ff0000
  28 +
  29  #define AR_PHY_M_SLEEP      0x99f0
  30  #define AR_PHY_REFCLKDLY    0x99f4
  31  #define AR_PHY_REFCLKPD     0x99f8