diff options
| author | Luis R. Rodriguez <lrodriguez@atheros.com> | 2010-05-07 18:23:22 -0400 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-05-10 14:56:46 -0400 |
| commit | 5efa3a6bf4dd1674920d7419cbde9d731cdb61f1 (patch) | |
| tree | e7c229de1a6b9abd7f0d5941c96074ae210a7c16 | |
| parent | 9e385c56a1eecfb62dbc5162037fb4ed1676b27e (diff) | |
ath9k_hw: enable PCIe low power mode for AR9003
Cc: Paul Shaw <paul.shaw@atheros.com>
Cc: Don Breslin <don.breslin@atheros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/ath/ath9k/hw.c | 20 |
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 8f37f1c2a38..f2d0389a66c 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -573,6 +573,26 @@ 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 |