ath9k: disable RIFS search on some chips to avoid baseband hangs

SVN-Revision: 19829
15 years ago · e08dd936ef
parent 0ab4d7e848
commit e08dd936ef
1 changed files with 31 additions and 0 deletions
--- a/package/mac80211/patches/550-ath9k_rifs_disable.patch
+++ b/package/mac80211/patches/550-ath9k_rifs_disable.patch
@ -0,0 +1,31 @@
+--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -1326,6 +1326,16 @@ static void ath9k_hw_override_ini(struct
+ 	 * Necessary to avoid issues on AR5416 2.0
+ 	 */
+ 	REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
+
+	/*
+	 * Disable RIFS search on some chips to avoid baseband
+	 * hang issues.
+	 */
+	if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
+		val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
+		val &= ~AR_PHY_RIFS_INIT_DELAY;
+		REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
+	}
+ }
+ 
+ static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
+--- a/drivers/net/wireless/ath/ath9k/phy.h
+++ b/drivers/net/wireless/ath/ath9k/phy.h
+@@ -384,6 +384,9 @@ bool ath9k_hw_set_rf_regs(struct ath_hw 
+ 
+ #define AR_PHY_HEAVY_CLIP_ENABLE         0x99E0
+ 
+#define AR_PHY_HEAVY_CLIP_FACTOR_RIFS    0x99EC
+#define AR_PHY_RIFS_INIT_DELAY         0x03ff0000
+
+ #define AR_PHY_M_SLEEP      0x99f0
+ #define AR_PHY_REFCLKDLY    0x99f4
+ #define AR_PHY_REFCLKPD     0x99f8