ath9k_hw: Configure pll control register accordingly for AR9340
Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d98b4c6..a1eaace 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -716,13 +716,48 @@
REG_RMW_FIELD(ah, AR_CH0_BB_DPLL3,
AR_CH0_DPLL3_PHASE_SHIFT, DPLL3_PHASE_SHIFT_VAL);
+ } else if (AR_SREV_9340(ah)) {
+ u32 regval, pll2_divint, pll2_divfrac, refdiv;
+
+ REG_WRITE(ah, AR_RTC_PLL_CONTROL, 0x1142c);
+ udelay(1000);
+
+ REG_SET_BIT(ah, AR_PHY_PLL_MODE, 0x1 << 16);
+ udelay(100);
+
+ if (ah->is_clk_25mhz) {
+ pll2_divint = 0x54;
+ pll2_divfrac = 0x1eb85;
+ refdiv = 3;
+ } else {
+ pll2_divint = 88;
+ pll2_divfrac = 0;
+ refdiv = 5;
+ }
+
+ regval = REG_READ(ah, AR_PHY_PLL_MODE);
+ regval |= (0x1 << 16);
+ REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
+ udelay(100);
+
+ REG_WRITE(ah, AR_PHY_PLL_CONTROL, (refdiv << 27) |
+ (pll2_divint << 18) | pll2_divfrac);
+ udelay(100);
+
+ regval = REG_READ(ah, AR_PHY_PLL_MODE);
+ regval = (regval & 0x80071fff) | (0x1 << 30) | (0x1 << 13) |
+ (0x4 << 26) | (0x18 << 19);
+ REG_WRITE(ah, AR_PHY_PLL_MODE, regval);
+ REG_WRITE(ah, AR_PHY_PLL_MODE,
+ REG_READ(ah, AR_PHY_PLL_MODE) & 0xfffeffff);
+ udelay(1000);
}
pll = ath9k_hw_compute_pll_control(ah, chan);
REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
- if (AR_SREV_9485(ah))
+ if (AR_SREV_9485(ah) || AR_SREV_9340(ah))
udelay(1000);
/* Switch the core clock for ar9271 to 117Mhz */
@@ -734,6 +769,19 @@
udelay(RTC_PLL_SETTLE_DELAY);
REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_FORCE_DERIVED_CLK);
+
+ if (AR_SREV_9340(ah)) {
+ if (ah->is_clk_25mhz) {
+ REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x17c << 1);
+ REG_WRITE(ah, AR_SLP32_MODE, 0x0010f3d7);
+ REG_WRITE(ah, AR_SLP32_INC, 0x0001e7ae);
+ } else {
+ REG_WRITE(ah, AR_RTC_DERIVED_CLK, 0x261 << 1);
+ REG_WRITE(ah, AR_SLP32_MODE, 0x0010f400);
+ REG_WRITE(ah, AR_SLP32_INC, 0x0001e800);
+ }
+ udelay(100);
+ }
}
static void ath9k_hw_init_interrupt_masks(struct ath_hw *ah,