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ath9k_hw: Configure pll control register accordingly for AR9340

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Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2011-04-20 10:26:15 +05:30 committed by John W. Linville
parent f2f5f2a1ce
commit 0b488ac6ec
4 changed files with 56 additions and 3 deletions
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50
drivers/net/wireless/ath/ath9k/hw.c
View File

@ -716,13 +716,48 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
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 @@ static void ath9k_hw_init_pll(struct ath_hw *ah,
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,

2
drivers/net/wireless/ath/ath9k/hw.h
View File

@ -122,7 +122,7 @@
#define AR_GPIO_BIT(_gpio) (1 << (_gpio))
#define BASE_ACTIVATE_DELAY 100
#define RTC_PLL_SETTLE_DELAY 100
#define RTC_PLL_SETTLE_DELAY (AR_SREV_9340(ah) ? 1000 : 100)
#define COEF_SCALE_S 24
#define HT40_CHANNEL_CENTER_SHIFT 10

3
drivers/net/wireless/ath/ath9k/phy.h
View File

@ -45,4 +45,7 @@
#define AR_PHY_TIMING11_SPUR_FREQ_SD 0x3FF00000
#define AR_PHY_TIMING11_SPUR_FREQ_SD_S 20
#define AR_PHY_PLL_CONTROL 0x16180
#define AR_PHY_PLL_MODE 0x16184
#endif

4
drivers/net/wireless/ath/ath9k/reg.h
View File

@ -1180,6 +1180,7 @@ enum {
#define AR_RTC_PLL_REFDIV_5 0x000000c0
#define AR_RTC_PLL_CLKSEL 0x00000300
#define AR_RTC_PLL_CLKSEL_S 8
#define AR_RTC_PLL_BYPASS 0x00010000
#define PLL3 0x16188
#define PLL3_DO_MEAS_MASK 0x40000000
@ -1226,7 +1227,8 @@ enum {
/* RTC_DERIVED_* - only for AR9100 */
#define AR_RTC_DERIVED_CLK (AR_RTC_BASE + 0x0038)
#define AR_RTC_DERIVED_CLK \
(AR_SREV_9100(ah) ? (AR_RTC_BASE + 0x0038) : 0x7038)
#define AR_RTC_DERIVED_CLK_PERIOD 0x0000fffe
#define AR_RTC_DERIVED_CLK_PERIOD_S 1