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

   1 --- a/drivers/net/wireless/ath/ath5k/initvals.c
   2 +++ b/drivers/net/wireless/ath/ath5k/initvals.c
   3 @@ -58,8 +58,14 @@ static const struct ath5k_ini ar5210_ini
   4         { AR5K_IMR,             0 },
   5         { AR5K_IER,             AR5K_IER_DISABLE },
   6         { AR5K_BSR,             0, AR5K_INI_READ },
   7 +#ifndef CONFIG_ATHEROS_AR71XX
   8         { AR5K_TXCFG,           AR5K_DMASIZE_128B },
   9         { AR5K_RXCFG,           AR5K_DMASIZE_128B },
  10 +#else
  11 +       /* WAR for AR71xx PCI bug */
  12 +       { AR5K_TXCFG,           AR5K_DMASIZE_4B },
  13 +       { AR5K_RXCFG,           AR5K_DMASIZE_4B },
  14 +#endif
  15         { AR5K_CFG,             AR5K_INIT_CFG },
  16         { AR5K_TOPS,            8 },
  17         { AR5K_RXNOFRM,         8 },
  18 --- a/drivers/net/wireless/ath/ath5k/dma.c
  19 +++ b/drivers/net/wireless/ath/ath5k/dma.c
  20 @@ -787,10 +787,18 @@ void ath5k_hw_dma_init(struct ath5k_hw *
  21          * guess we can tweak it and see how it goes ;-)
  22          */
  23         if (ah->ah_version != AR5K_AR5210) {
  24 +#ifndef CONFIG_ATHEROS_AR71XX
  25                 AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
  26                         AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
  27                 AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
  28                         AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_128B);
  29 +#else
  30 +               /* WAR for AR71xx PCI bug */
  31 +               AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
  32 +                       AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_4B);
  33 +               AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
  34 +                       AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_4B);
  35 +#endif
  36         }
  37
  38         /* Pre-enable interrupts on 5211/5212*/