1 /*
2 * Copyright (c) 2011 Adrian Chadd, Xenion Pty Ltd
3 * Copyright (c) 2010 Atheros Communications, Inc.
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 *
17 * $FreeBSD$
18 */
19 #include "opt_ah.h"
20
21 #include "ah.h"
22 #include "ah_internal.h"
23 #include "ah_devid.h"
24
25 #include "ar5416/ar5416.h"
26 #include "ar5416/ar5416reg.h"
27 #include "ar5416/ar5416phy.h"
28 #include "ar9001/ar9130_phy.h"
29
30 void
ar9130InitPLL(struct ath_hal * ah,const struct ieee80211_channel * chan)31 ar9130InitPLL(struct ath_hal *ah, const struct ieee80211_channel *chan)
32 {
33
34 uint32_t pll;
35
36 /*
37 * XXX TODO: support half/quarter rates
38 */
39 if (chan && IEEE80211_IS_CHAN_5GHZ(chan))
40 pll = 0x1450;
41 else
42 pll = 0x1458;
43
44 OS_REG_WRITE(ah, AR_RTC_PLL_CONTROL, pll);
45 OS_DELAY(RTC_PLL_SETTLE_DELAY);
46 OS_REG_WRITE(ah, AR_RTC_SLEEP_CLK, AR_RTC_SLEEP_DERIVED_CLK);
47 }
48