32 lines
993 B
Diff
32 lines
993 B
Diff
--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -1326,6 +1326,16 @@ static void ath9k_hw_override_ini(struct
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* Necessary to avoid issues on AR5416 2.0
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*/
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REG_WRITE(ah, 0x9800 + (651 << 2), 0x11);
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+
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+ /*
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+ * Disable RIFS search on some chips to avoid baseband
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+ * hang issues.
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+ */
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+ if (AR_SREV_9100(ah) || AR_SREV_9160(ah)) {
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+ val = REG_READ(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS);
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+ val &= ~AR_PHY_RIFS_INIT_DELAY;
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+ REG_WRITE(ah, AR_PHY_HEAVY_CLIP_FACTOR_RIFS, val);
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+ }
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}
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static u32 ath9k_hw_def_ini_fixup(struct ath_hw *ah,
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--- a/drivers/net/wireless/ath/ath9k/phy.h
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+++ b/drivers/net/wireless/ath/ath9k/phy.h
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@@ -384,6 +384,9 @@ bool ath9k_hw_set_rf_regs(struct ath_hw
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#define AR_PHY_HEAVY_CLIP_ENABLE 0x99E0
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+#define AR_PHY_HEAVY_CLIP_FACTOR_RIFS 0x99EC
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+#define AR_PHY_RIFS_INIT_DELAY 0x03ff0000
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+
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#define AR_PHY_M_SLEEP 0x99f0
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#define AR_PHY_REFCLKDLY 0x99f4
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#define AR_PHY_REFCLKPD 0x99f8
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