--- /dev/null
+--- a/drivers/net/wireless/ath/ath5k/reset.c
++++ b/drivers/net/wireless/ath/ath5k/reset.c
+@@ -233,7 +233,7 @@ static void ath5k_hw_init_core_clock(str
+ static void ath5k_hw_set_sleep_clock(struct ath5k_hw *ah, bool enable)
+ {
+ struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
+- u32 scal, spending;
++ u32 scal, spending, sclock;
+
+ /* Only set 32KHz settings if we have an external
+ * 32KHz crystal present */
+@@ -317,6 +317,15 @@ static void ath5k_hw_set_sleep_clock(str
+
+ /* Set up tsf increment on each cycle */
+ AR5K_REG_WRITE_BITS(ah, AR5K_TSF_PARM, AR5K_TSF_PARM_INC, 1);
++
++ if ((ah->ah_radio == AR5K_RF5112) ||
++ (ah->ah_radio == AR5K_RF5413) ||
++ (ah->ah_radio == AR5K_RF2316) ||
++ (ah->ah_radio == AR5K_RF2317))
++ sclock = 40 - 1;
++ else
++ sclock = 32 - 1;
++ AR5K_REG_WRITE_BITS(ah, AR5K_USEC_5211, AR5K_USEC_32, sclock);
+ }
+ }
+