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-rw-r--r--package/mac80211/patches/404-ath9k-wake-up-the-chip-for-TSF-reset.patch33
1 files changed, 33 insertions, 0 deletions
diff --git a/package/mac80211/patches/404-ath9k-wake-up-the-chip-for-TSF-reset.patch b/package/mac80211/patches/404-ath9k-wake-up-the-chip-for-TSF-reset.patch
new file mode 100644
index 0000000000..f4937f763c
--- /dev/null
+++ b/package/mac80211/patches/404-ath9k-wake-up-the-chip-for-TSF-reset.patch
@@ -0,0 +1,33 @@
+From d2fa21debb4ea8c022b0fbed165eea821d19da9e Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Sat, 20 Jun 2009 23:57:22 +0200
+Subject: [PATCH] ath9k: wake up the chip for TSF reset
+
+If we are in NETWORK SLEEP state, AR_SLP32_TSF_WRITE_STATUS limit
+always exceeds in 'ath9k_hw_reset_tsf', because reading of the
+AR_SLP3 register always return with the magic 0xdeadbeef value.
+
+Changes-licensed-under: ISC
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ drivers/net/wireless/ath/ath9k/hw.c | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -3803,6 +3803,7 @@ void ath9k_hw_reset_tsf(struct ath_hw *a
+ {
+ int count;
+
++ ath9k_ps_wakeup(ah->ah_sc);
+ count = 0;
+ while (REG_READ(ah, AR_SLP32_MODE) & AR_SLP32_TSF_WRITE_STATUS) {
+ count++;
+@@ -3814,6 +3815,7 @@ void ath9k_hw_reset_tsf(struct ath_hw *a
+ udelay(10);
+ }
+ REG_WRITE(ah, AR_RESET_TSF, AR_RESET_TSF_ONCE);
++ ath9k_ps_restore(ah->ah_sc);
+ }
+
+ bool ath9k_hw_set_tsfadjust(struct ath_hw *ah, u32 setting)