imx_iomuxvar.h revision 273663 
1/*-
2 * Copyright (c) 2014 Ian Lepore <ian@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: stable/10/sys/arm/freescale/imx/imx_iomuxvar.h 273663 2014-10-26 02:44:41Z ian $
27 */
28
29#ifndef	IMX_IOMUXVAR_H
30#define	IMX_IOMUXVAR_H
31
32/*
33 * IOMUX interface functions
34 */
35void     iomux_set_function(u_int pin, u_int fn);
36void     iomux_set_pad(u_int pin, u_int cfg);
37u_int    iomux_get_pad_config(u_int pin);
38
39/*
40 * The IOMUX Controller device has a small set of "general purpose registers"
41 * which control various aspects of SoC operation that really have nothing to do
42 * with IO pin assignments or pad control.  These functions let other soc level
43 * code manipulate these values.
44 */
45uint32_t imx_iomux_gpr_get(u_int regnum);
46void     imx_iomux_gpr_set(u_int regnum, uint32_t val);
47void     imx_iomux_gpr_set_masked(u_int regnum, uint32_t clrbits, uint32_t setbits);
48
49#endif
50