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path: root/drivers/net/wireless/ath/ath9k/hw.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/hw.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/hw.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 559019262d30..c33f17dbe6f1 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -574,6 +574,26 @@ static int __ath9k_hw_init(struct ath_hw *ah)
ath9k_hw_init_mode_regs(ah);
+ /*
+ * Configire PCIE after Ini init. SERDES values now come from ini file
+ * This enables PCIe low power mode.
+ */
+ if (AR_SREV_9300_20_OR_LATER(ah)) {
+ u32 regval;
+ unsigned int i;
+
+ /* Set Bits 16 and 17 in the AR_WA register. */
+ regval = REG_READ(ah, AR_WA);
+ regval |= 0x00030000;
+ REG_WRITE(ah, AR_WA, regval);
+
+ for (i = 0; i < ah->iniPcieSerdesLowPower.ia_rows; i++) {
+ REG_WRITE(ah,
+ INI_RA(&ah->iniPcieSerdesLowPower, i, 0),
+ INI_RA(&ah->iniPcieSerdesLowPower, i, 1));
+ }
+ }
+
if (ah->is_pciexpress)
ath9k_hw_configpcipowersave(ah, 0, 0);
else