diff options
| author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-08-20 15:09:03 +0000 |
|---|---|---|
| committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2009-08-20 15:09:03 +0000 |
| commit | c787789db4f1759bf6da682774b61f0d2731af45 (patch) | |
| tree | 10d5f5aabf319c9f39f6e2e518c6528c7b13faef | |
| parent | 81ef7deaaef9d4c5e8b1c265758b0334fa50bbe3 (diff) | |
mac80211: fix ath5k dma size workaround for ar71xx
Atheros legacy hardware does not perform well on ar71xx unless both TXCFG and RXCFG are forced to 4 bytes.
The previous patch only changed RXCFG. The OpenWrt Madwifi HAL also sets both RXCFG and TXCFG
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17328 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch b/package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch index b72c5bd82..9223f4fc5 100644 --- a/package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch +++ b/package/mac80211/patches/201-ath5k-WAR-for-AR71xx-PCI-bug.patch @@ -1,14 +1,18 @@ --- a/drivers/net/wireless/ath/ath5k/reset.c +++ b/drivers/net/wireless/ath/ath5k/reset.c -@@ -1370,8 +1370,14 @@ int ath5k_hw_reset(struct ath5k_hw *ah, +@@ -1368,10 +1368,18 @@ int ath5k_hw_reset(struct ath5k_hw *ah, + * 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); -+#ifndef CONFIG_ATHEROS_AR71XX 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_4B); + AR5K_REG_WRITE_BITS(ah, AR5K_RXCFG, + AR5K_RXCFG_SDMAMW, AR5K_DMASIZE_4B); +#endif @@ -17,14 +21,16 @@ /* Pre-enable interrupts on 5211/5212*/ --- a/drivers/net/wireless/ath/ath5k/initvals.c +++ b/drivers/net/wireless/ath/ath5k/initvals.c -@@ -59,7 +59,12 @@ static const struct ath5k_ini ar5210_ini +@@ -58,8 +58,14 @@ static const struct ath5k_ini ar5210_ini + { AR5K_IMR, 0 }, { AR5K_IER, AR5K_IER_DISABLE }, { AR5K_BSR, 0, AR5K_INI_READ }, - { AR5K_TXCFG, AR5K_DMASIZE_128B }, +#ifndef CONFIG_ATHEROS_AR71XX + { AR5K_TXCFG, AR5K_DMASIZE_128B }, { AR5K_RXCFG, AR5K_DMASIZE_128B }, +#else + /* WAR for AR71xx PCI bug */ ++ { AR5K_TXCFG, AR5K_DMASIZE_4B }, + { AR5K_RXCFG, AR5K_DMASIZE_4B }, +#endif { AR5K_CFG, AR5K_INIT_CFG }, |