xref: /freebsd/sys/arm/ti/ti_scm.h (revision b0b1dbdd)
1 /*
2  * Copyright (c) 2010
3  *	Ben Gray <ben.r.gray@gmail.com>.
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. All advertising materials mentioning features or use of this software
15  *    must display the following acknowledgement:
16  *	This product includes software developed by Ben Gray.
17  * 4. The name of the company nor the name of the author may be used to
18  *    endorse or promote products derived from this software without specific
19  *    prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
27  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
28  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
29  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
30  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  *
32  * $FreeBSD$
33  */
34 
35 
36 /**
37  *	Functions to configure the PIN multiplexing on the chip.
38  *
39  *	This is different from the GPIO module in that it is used to configure the
40  *	pins between modules not just GPIO input output.
41  *
42  */
43 #ifndef _TI_SCM_H_
44 #define _TI_SCM_H_
45 
46 struct ti_scm_softc {
47 	device_t		sc_dev;
48 	struct resource *	sc_res[4];
49 	bus_space_tag_t		sc_bst;
50 	bus_space_handle_t	sc_bsh;
51 };
52 
53 int ti_scm_reg_read_4(uint32_t reg, uint32_t *val);
54 int ti_scm_reg_write_4(uint32_t reg, uint32_t val);
55 
56 #endif /* _TI_SCM_H_ */
57