diff options
| author | Vasanthakumar Thiagarajan <vasanth@atheros.com> | 2011-04-19 19:29:19 +0530 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-25 14:50:13 -0400 |
| commit | 79d1d2b8a34fd36e63cc7f5267cf79217a44edcc (patch) | |
| tree | 54ad5882a17f27abd6b54735f73725befe833c8e | |
| parent | ecb1d385ad61001ff85407e5370a40934a1cc50b (diff) | |
| download | linux-79d1d2b8a34fd36e63cc7f5267cf79217a44edcc.tar.bz2 | |
ath9k_hw: Disable INTR_HOST1_FATAL to avoid interrupt strom with ar9430
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/mac.c | 10 |
2 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 28076086f633..66566ef3b8a8 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -795,12 +795,16 @@ static void ath9k_hw_init_pll(struct ath_hw *ah, static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, enum nl80211_iftype opmode) { + u32 sync_default = AR_INTR_SYNC_DEFAULT; u32 imr_reg = AR_IMR_TXERR | AR_IMR_TXURN | AR_IMR_RXERR | AR_IMR_RXORN | AR_IMR_BCNMISC; + if (AR_SREV_9340(ah)) + sync_default &= ~AR_INTR_SYNC_HOST1_FATAL; + if (AR_SREV_9300_20_OR_LATER(ah)) { imr_reg |= AR_IMR_RXOK_HP; if (ah->config.rx_intr_mitigation) @@ -831,7 +835,7 @@ static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah, if (!AR_SREV_9100(ah)) { REG_WRITE(ah, AR_INTR_SYNC_CAUSE, 0xFFFFFFFF); - REG_WRITE(ah, AR_INTR_SYNC_ENABLE, AR_INTR_SYNC_DEFAULT); + REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default); REG_WRITE(ah, AR_INTR_SYNC_MASK, 0); } diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c index 6f431cbff38a..d86b8393b8dd 100644 --- a/drivers/net/wireless/ath/ath9k/mac.c +++ b/drivers/net/wireless/ath/ath9k/mac.c @@ -793,10 +793,14 @@ EXPORT_SYMBOL(ath9k_hw_disable_interrupts); void ath9k_hw_enable_interrupts(struct ath_hw *ah) { struct ath_common *common = ath9k_hw_common(ah); + u32 sync_default = AR_INTR_SYNC_DEFAULT; if (!(ah->imask & ATH9K_INT_GLOBAL)) return; + if (AR_SREV_9340(ah)) + sync_default &= ~AR_INTR_SYNC_HOST1_FATAL; + ath_dbg(common, ATH_DBG_INTERRUPT, "enable IER\n"); REG_WRITE(ah, AR_IER, AR_IER_ENABLE); if (!AR_SREV_9100(ah)) { @@ -805,10 +809,8 @@ void ath9k_hw_enable_interrupts(struct ath_hw *ah) REG_WRITE(ah, AR_INTR_ASYNC_MASK, AR_INTR_MAC_IRQ); - REG_WRITE(ah, AR_INTR_SYNC_ENABLE, - AR_INTR_SYNC_DEFAULT); - REG_WRITE(ah, AR_INTR_SYNC_MASK, - AR_INTR_SYNC_DEFAULT); + REG_WRITE(ah, AR_INTR_SYNC_ENABLE, sync_default); + REG_WRITE(ah, AR_INTR_SYNC_MASK, sync_default); } ath_dbg(common, ATH_DBG_INTERRUPT, "AR_IMR 0x%x IER 0x%x\n", REG_READ(ah, AR_IMR), REG_READ(ah, AR_IER)); |