OpenWrt – Rev 1

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--- a/drivers/net/wireless/ath/ath5k/initvals.c
+++ b/drivers/net/wireless/ath/ath5k/initvals.c
@@ -62,8 +62,14 @@ static const struct ath5k_ini ar5210_ini
        { AR5K_IMR,             0 },
        { AR5K_IER,             AR5K_IER_DISABLE },
        { AR5K_BSR,             0, AR5K_INI_READ },
+#if !defined(CONFIG_ATHEROS_AR71XX) && !defined(CONFIG_ATH79)
        { AR5K_TXCFG,           AR5K_DMASIZE_128B },
        { AR5K_RXCFG,           AR5K_DMASIZE_128B },
+#else
+       /* WAR for AR71xx PCI bug */
+       { AR5K_TXCFG,           AR5K_DMASIZE_128B },
+       { AR5K_RXCFG,           AR5K_DMASIZE_4B },
+#endif
        { AR5K_CFG,             AR5K_INIT_CFG },
        { AR5K_TOPS,            8 },
        { AR5K_RXNOFRM,         8 },
--- a/drivers/net/wireless/ath/ath5k/dma.c
+++ b/drivers/net/wireless/ath/ath5k/dma.c
@@ -869,10 +869,18 @@ ath5k_hw_dma_init(struct ath5k_hw *ah)
         * guess we can tweak it and see how it goes ;-)
         */
        if (ah->ah_version != AR5K_AR5210) {
+#if !defined(CONFIG_ATHEROS_AR71XX) && !defined(CONFIG_ATH79)
                AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
                        AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
                AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
                        AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_128B);
+#else
+               /* WAR for AR71xx PCI bug */
+               AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
+                       AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
+               AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
+                       AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_4B);
+#endif
        }
 
        /* Pre-enable interrupts on 5211/5212*/