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--- a/drivers/net/wireless/ath/ath5k/initvals.c
+++ b/drivers/net/wireless/ath/ath5k/initvals.c
@@ -57,8 +57,14 @@ static const struct ath5k_ini ar5210_ini
{ AR5K_IMR, 0 },
{ AR5K_IER, AR5K_IER_DISABLE },
{ AR5K_BSR, 0, AR5K_INI_READ },
+#ifndef CONFIG_ATHEROS_AR71XX
{ 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
@@ -786,10 +786,18 @@ void ath5k_hw_dma_init(struct ath5k_hw *
* guess we can tweak it and see how it goes ;-)
*/
if (ah->ah_version != AR5K_AR5210) {
+#ifndef CONFIG_ATHEROS_AR71XX
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*/
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