ath5k: Increase PHY settling parameters for turo mode
* On turbo mode increase PHY settling times, note that
we only increase switch settling time on AR5212 as indicated
by initvals.
* A few cleanups: Move frame control settings for AR5210 from
reset_tx_queue to tweak_initvals and remove phy_scal settings
from tweak_initvals (we tweak them alread on set_sleep_clock).
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath5k/reset.c b/drivers/net/wireless/ath/ath5k/reset.c
index c9e5bad..c871d40 100644
--- a/drivers/net/wireless/ath/ath5k/reset.c
+++ b/drivers/net/wireless/ath/ath5k/reset.c
@@ -688,19 +688,6 @@
AR5K_REG_DISABLE_BITS(ah, AR5K_TXCFG,
AR5K_TXCFG_DCU_DBL_BUF_DIS);
- /* Set DAC/ADC delays */
- if (ah->ah_version == AR5K_AR5212) {
- u32 scal;
- struct ath5k_eeprom_info *ee = &ah->ah_capabilities.cap_eeprom;
- if (ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4))
- scal = AR5K_PHY_SCAL_32MHZ_2417;
- else if (ee->ee_is_hb63)
- scal = AR5K_PHY_SCAL_32MHZ_HB63;
- else
- scal = AR5K_PHY_SCAL_32MHZ;
- ath5k_hw_reg_write(ah, scal, AR5K_PHY_SCAL);
- }
-
/* Set fast ADC */
if ((ah->ah_radio == AR5K_RF5413) ||
(ah->ah_mac_version == (AR5K_SREV_AR2417 >> 4))) {
@@ -740,6 +727,45 @@
AR5K_REG_ENABLE_BITS(ah, AR5K_DIAG_SW_5211,
AR5K_DIAG_SW_ECO_ENABLE);
}
+
+ if (ah->ah_bwmode) {
+ /* Increase PHY switch and AGC settling time
+ * on turbo mode (ath5k_hw_commit_eeprom_settings
+ * will override settling time if available) */
+ if (ah->ah_bwmode == AR5K_BWMODE_40MHZ) {
+
+ AR5K_REG_WRITE_BITS(ah, AR5K_PHY_SETTLING,
+ AR5K_PHY_SETTLING_AGC,
+ AR5K_AGC_SETTLING_TURBO);
+
+ /* XXX: Initvals indicate we only increase
+ * switch time on AR5212, 5211 and 5210
+ * only change agc time (bug?) */
+ if (ah->ah_version == AR5K_AR5212)
+ AR5K_REG_WRITE_BITS(ah, AR5K_PHY_SETTLING,
+ AR5K_PHY_SETTLING_SWITCH,
+ AR5K_SWITCH_SETTLING_TURBO);
+
+ if (ah->ah_version == AR5K_AR5210) {
+ /* Set Frame Control Register */
+ ath5k_hw_reg_write(ah,
+ (AR5K_PHY_FRAME_CTL_INI |
+ AR5K_PHY_TURBO_MODE |
+ AR5K_PHY_TURBO_SHORT | 0x2020),
+ AR5K_PHY_FRAME_CTL_5210);
+ }
+ /* On 5413 PHY force window length for half/quarter rate*/
+ } else if ((ah->ah_mac_srev >= AR5K_SREV_AR5424) &&
+ (ah->ah_mac_srev <= AR5K_SREV_AR5414)) {
+ AR5K_REG_WRITE_BITS(ah, AR5K_PHY_FRAME_CTL_5211,
+ AR5K_PHY_FRAME_CTL_WIN_LEN,
+ 3);
+ }
+ } else if (ah->ah_version == AR5K_AR5210) {
+ /* Set Frame Control Register for normal operation */
+ ath5k_hw_reg_write(ah, (AR5K_PHY_FRAME_CTL_INI | 0x1020),
+ AR5K_PHY_FRAME_CTL_5210);
+ }
}
static void ath5k_hw_commit_eeprom_settings(struct ath5k_hw *ah,