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
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