Commit 9faf0723 authored by Miaoqing Pan's avatar Miaoqing Pan Committed by Luis Henriques

ath9k: Fix RTC_DERIVED_CLK usage

commit 4e6ce4dc upstream.

Based on the reference clock, which could be 25MHz or 40MHz,
AR_RTC_DERIVED_CLK is programmed differently for AR9340 and AR9550.
But, when a chip reset is done, processing the initvals
sets the register back to the default value.

Fix this by moving the code in ath9k_hw_init_pll() to
ar9003_hw_override_ini(). Also, do this override for AR9531.
Signed-off-by: default avatarMiaoqing Pan <miaoqing@qca.qualcomm.com>
Signed-off-by: default avatarSujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
Signed-off-by: default avatarLuis Henriques <luis.henriques@canonical.com>
parent c9e9de3e
......@@ -647,6 +647,19 @@ static void ar9003_hw_override_ini(struct ath_hw *ah)
ah->enabled_cals |= TX_CL_CAL;
else
ah->enabled_cals &= ~TX_CL_CAL;
if (AR_SREV_9340(ah) || AR_SREV_9531(ah) || AR_SREV_9550(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 ar9003_hw_prog_ini(struct ath_hw *ah,
......
......@@ -858,19 +858,6 @@ 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) || AR_SREV_9550(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,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment