xref: /NextBSD/sys/arm/at91/at91_pmcvar.h (revision eb1a5f8de9f7ea602c373a710f531abbf81141c4)
1 /*-
2  * Copyright (c) 2005 M. Warner Losh.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23  * SUCH DAMAGE.
24  */
25 
26 /* $FreeBSD$ */
27 
28 #ifndef ARM_AT91_AT91_PMCVAR_H
29 #define ARM_AT91_AT91_PMCVAR_H
30 
31 struct at91_pmc_clock
32 {
33 	char		*name;
34 	uint32_t	hz;
35 	struct at91_pmc_clock *parent;
36 	uint32_t	pmc_mask;
37 	void		(*set_mode)(struct at91_pmc_clock *, int);
38 	uint32_t	refcnt;
39 	unsigned	id:2;
40 	unsigned	primary:1;
41 	unsigned	pll:1;
42 	unsigned	programmable:1;
43 
44 	/* PLL Params */
45 	uint32_t	pll_min_in;
46 	uint32_t	pll_max_in;
47 	uint32_t	pll_min_out;
48 	uint32_t	pll_max_out;
49 
50 	uint32_t	pll_div_shift;
51 	uint32_t	pll_div_mask;
52 	uint32_t	pll_mul_shift;
53 	uint32_t	pll_mul_mask;
54 
55 	uint32_t	(*set_outb)(int);
56 };
57 
58 struct at91_pmc_clock *at91_pmc_clock_add(const char *name, uint32_t irq,
59     struct at91_pmc_clock *parent);
60 struct at91_pmc_clock *at91_pmc_clock_ref(const char *name);
61 void at91_pmc_clock_deref(struct at91_pmc_clock *);
62 void at91_pmc_clock_enable(struct at91_pmc_clock *);
63 void at91_pmc_clock_disable(struct at91_pmc_clock *);
64 
65 uint32_t at91_pmc_800mhz_plla_outb(int freq);
66 uint32_t at91_pmc_800mhz_pllb_outb(int freq);
67 #endif /* ARM_AT91_AT91_PMCVAR_H */
68