package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch

   1 --- a/drivers/net/wireless/ath/ath5k/reset.c
   2 +++ b/drivers/net/wireless/ath/ath5k/reset.c
   3 @@ -1368,10 +1368,18 @@ int ath5k_hw_reset(struct ath5k_hw *ah,
   4          * guess we can tweak it and see how it goes ;-)
   5          */
   6         if (ah->ah_version != AR5K_AR5210) {
   7 +#ifndef CONFIG_ATHEROS_AR71XX
   8                 AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
   9                         AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
  10                 AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
  11                         AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_128B);
  12 +#else
  13 +               /* WAR for AR71xx PCI bug */
  14 +               AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
  15 +                       AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_4B);
  16 +               AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
  17 +                       AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_4B);
  18 +#endif
  19         }
  20
  21         /* Pre-enable interrupts on 5211/5212*/
  22 --- a/drivers/net/wireless/ath/ath5k/initvals.c
  23 +++ b/drivers/net/wireless/ath/ath5k/initvals.c
  24 @@ -58,8 +58,14 @@ static const struct ath5k_ini ar5210_ini
  25         { AR5K_IMR,             0 },
  26         { AR5K_IER,             AR5K_IER_DISABLE },
  27         { AR5K_BSR,             0, AR5K_INI_READ },
  28 +#ifndef CONFIG_ATHEROS_AR71XX
  29         { AR5K_TXCFG,           AR5K_DMASIZE_128B },
  30         { AR5K_RXCFG,           AR5K_DMASIZE_128B },
  31 +#else
  32 +       /* WAR for AR71xx PCI bug */
  33 +       { AR5K_TXCFG,           AR5K_DMASIZE_4B },
  34 +       { AR5K_RXCFG,           AR5K_DMASIZE_4B },
  35 +#endif
  36         { AR5K_CFG,             AR5K_INIT_CFG },
  37         { AR5K_TOPS,            8 },
  38         { AR5K_RXNOFRM,         8 },