mac80211/ath5k: add workaround for the AR71xx PCI bug
SVN-Revision: 16535
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6e42b25c88
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@ -18,7 +18,7 @@ ifneq ($(CONFIG_LINUX_2_6_21)$(CONFIG_LINUX_2_6_23)$(CONFIG_LINUX_2_6_24)$(CONFI
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PATCH_DIR:=./patches-old
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else
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PKG_VERSION:=2009-06-02
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PKG_RELEASE:=1
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PKG_RELEASE:=2
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PKG_SOURCE_URL:= \
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http://www.orbit-lab.org/kernel/compat-wireless-2.6/2009/06 \
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http://wireless.kernel.org/download/compat-wireless-2.6
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@ -0,0 +1,32 @@
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--- a/drivers/net/wireless/ath/ath5k/reset.c
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+++ b/drivers/net/wireless/ath/ath5k/reset.c
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@@ -1297,8 +1297,14 @@ int ath5k_hw_reset(struct ath5k_hw *ah,
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if (ah->ah_version != AR5K_AR5210) {
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AR5K_REG_WRITE_BITS(ah, AR5K_TXCFG,
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AR5K_TXCFG_SDMAMR, AR5K_DMASIZE_128B);
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+#ifndef CONFIG_ATHEROS_AR71XX
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AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
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AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_128B);
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+#else
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+ /* WAR for AR71xx PCI bug */
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+ AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG,
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+ AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_4B);
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+#endif
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}
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/* Pre-enable interrupts on 5211/5212*/
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--- a/drivers/net/wireless/ath/ath5k/initvals.c
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+++ b/drivers/net/wireless/ath/ath5k/initvals.c
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@@ -59,7 +59,12 @@ static const struct ath5k_ini ar5210_ini
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{ AR5K_IER, AR5K_IER_DISABLE },
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{ AR5K_BSR, 0, AR5K_INI_READ },
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{ AR5K_TXCFG, AR5K_DMASIZE_128B },
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+#ifndef CONFIG_ATHEROS_AR71XX
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{ AR5K_RXCFG, AR5K_DMASIZE_128B },
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+#else
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+ /* WAR for AR71xx PCI bug */
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+ { AR5K_RXCFG, AR5K_DMASIZE_4B },
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+#endif
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{ AR5K_CFG, AR5K_INIT_CFG },
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{ AR5K_TOPS, 8 },
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{ AR5K_RXNOFRM, 8 },
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