From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
for AR9002 family of chipsets and for WoW sleep, we reprogram
the SerDes so that the PLL and CHK REQ are both enabled. this
uses more power but in certain cases this is required as otherwise
WoW sleep is unstable and chip may disappear.
Cc: Senthil Balasubramanian <senthilb@xxxxxxxxxxxxxxxx>
Cc: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxxxx>
Cc: vadivel@xxxxxxxxxxxxxxxx
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath9k/ar9002_hw.c | 5 +++++
drivers/net/wireless/ath/ath9k/ar9002_initvals.h | 14 ++++++++++++++
drivers/net/wireless/ath/ath9k/hw.h | 3 +++
3 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
index edf21ea..0e6ee60 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
@@ -43,6 +43,11 @@ static void ar9002_hw_init_mode_regs(struct ath_hw *ah)
INIT_INI_ARRAY(&ah->iniPcieSerdes,
ar9280PciePhy_clkreq_always_on_L1_9280,
ARRAY_SIZE(ar9280PciePhy_clkreq_always_on_L1_9280), 2);
+#ifdef CONFIG_PM_SLEEP
+ INIT_INI_ARRAY(&ah->iniPcieSerdesWow,
+ ar9280PciePhy_awow,
+ ARRAY_SIZE(ar9280PciePhy_awow), 2);
+#endif
if (AR_SREV_9287_11_OR_LATER(ah)) {
INIT_INI_ARRAY(&ah->iniModes, ar9287Modes_9287_1_1,
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_initvals.h b/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
index 4d18c66..beb6162 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9002_initvals.h
@@ -925,6 +925,20 @@ static const u32 ar9280PciePhy_clkreq_always_on_L1_9280[][2] = {
{0x00004044, 0x00000000},
};
+static const u32 ar9280PciePhy_awow[][2] = {
+ /* Addr allmodes */
+ {0x00004040, 0x9248fd00},
+ {0x00004040, 0x24924924},
+ {0x00004040, 0xa8000019},
+ {0x00004040, 0x13160820},
+ {0x00004040, 0xe5980560},
+ {0x00004040, 0xc01dcffd},
+ {0x00004040, 0x1aaabe41},
+ {0x00004040, 0xbe105554},
+ {0x00004040, 0x00043007},
+ {0x00004044, 0x00000000},
+};
+
static const u32 ar9285Modes_9285_1_2[][5] = {
/* Addr 5G_HT20 5G_HT40 2G_HT40 2G_HT20 */
{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index c8b800d..f3ee7b9 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -845,6 +845,9 @@ struct ath_hw {
struct ar5416IniArray iniBank7;
struct ar5416IniArray iniAddac;
struct ar5416IniArray iniPcieSerdes;
+#ifdef CONFIG_PM_SLEEP
+ struct ar5416IniArray iniPcieSerdesWow;
+#endif
struct ar5416IniArray iniPcieSerdesLowPower;
struct ar5416IniArray iniModesFastClock;
struct ar5416IniArray iniAdditional;
--
1.7.0.4
--
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