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 27 #ifndef IMX_IOMUXVAR_H 28 #define IMX_IOMUXVAR_H 29 30 /* 31 * IOMUX interface functions 32 */ 33 void iomux_set_function(u_int pin, u_int fn); 34 void iomux_set_pad(u_int pin, u_int cfg); 35 u_int iomux_get_pad_config(u_int pin); 36 37 /* 38 * The IOMUX Controller device has a small set of "general purpose registers" 39 * which control various aspects of SoC operation that really have nothing to do 40 * with IO pin assignments or pad control. These functions let other soc level 41 * code manipulate these values. 42 */ 43 uint32_t imx_iomux_gpr_get(u_int regaddr); 44 void imx_iomux_gpr_set(u_int regaddr, uint32_t val); 45 void imx_iomux_gpr_set_masked(u_int regaddr, uint32_t clrbits, uint32_t setbits); 46 47 #endif 48