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authorFelix Fietkau <nbd@openwrt.org>2013-05-23 10:20:55 (GMT)
committerJohn W. Linville <linville@tuxdriver.com>2013-05-24 16:50:22 (GMT)
commita37a99102e4573145aa60a2f78a690cc8def027c (patch)
treeaa9e0b718a5357ac2c7532bfb190fa92f0eeccca
parent23dd9b2a43698df12f7951e0e5a5fbffd0b3108a (diff)
downloadlinux-a37a99102e4573145aa60a2f78a690cc8def027c.tar.xz
ath9k_hw: fix host interface reset on AR934x
If a local bus timeout has been detected, the host interface needs to be reset to clear the errors. AR934x uses a different synchronous interrupt bit to indicate this, so the check needs to be fixed. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c10
-rw-r--r--drivers/net/wireless/ath/ath9k/reg.h2
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7f25da8..01e97ce 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1306,9 +1306,13 @@ static bool ath9k_hw_set_reset(struct ath_hw *ah, int type)
AR_RTC_RC_COLD_RESET | AR_RTC_RC_WARM_RESET;
} else {
tmpReg = REG_READ(ah, AR_INTR_SYNC_CAUSE);
- if (tmpReg &
- (AR_INTR_SYNC_LOCAL_TIMEOUT |
- AR_INTR_SYNC_RADM_CPL_TIMEOUT)) {
+ if (AR_SREV_9340(ah))
+ tmpReg &= AR9340_INTR_SYNC_LOCAL_TIMEOUT;
+ else
+ tmpReg &= AR_INTR_SYNC_LOCAL_TIMEOUT |
+ AR_INTR_SYNC_RADM_CPL_TIMEOUT;
+
+ if (tmpReg) {
u32 val;
REG_WRITE(ah, AR_INTR_SYNC_ENABLE, 0);
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 5c4ab50..9c056a8 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -1007,6 +1007,8 @@ enum {
AR_INTR_SYNC_LOCAL_TIMEOUT |
AR_INTR_SYNC_MAC_SLEEP_ACCESS),
+ AR9340_INTR_SYNC_LOCAL_TIMEOUT = 0x00000010,
+
AR_INTR_SYNC_SPURIOUS = 0xFFFFFFFF,
};