From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 23 May 2013 10:20:55 +0000 (+0200)
Subject: ath9k_hw: fix host interface reset on AR934x
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a37a99102e4573145aa60a2f78a690cc8def027c;p=linux-beck.git

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>
---

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7f25da8444fe..01e97ce438ba 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 5c4ab5026dca..9c056a80b85d 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,
 
 };