diff options
Diffstat (limited to 'bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h')
| -rw-r--r-- | bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h b/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h new file mode 100644 index 0000000000..8050b56a84 --- /dev/null +++ b/bsps/arm/imx/include/arm/freescale/imx/imx_iomuxvar.h @@ -0,0 +1,49 @@ +/*- + * Copyright (c) 2014 Ian Lepore <ian@freebsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD: head/sys/arm/freescale/imx/imx_iomuxvar.h 321938 2017-08-02 18:28:06Z ian $ + */ + +#ifndef IMX_IOMUXVAR_H +#define IMX_IOMUXVAR_H + +/* + * IOMUX interface functions + */ +void iomux_set_function(u_int pin, u_int fn); +void iomux_set_pad(u_int pin, u_int cfg); +u_int iomux_get_pad_config(u_int pin); + +/* + * The IOMUX Controller device has a small set of "general purpose registers" + * which control various aspects of SoC operation that really have nothing to do + * with IO pin assignments or pad control. These functions let other soc level + * code manipulate these values. + */ +uint32_t imx_iomux_gpr_get(u_int regaddr); +void imx_iomux_gpr_set(u_int regaddr, uint32_t val); +void imx_iomux_gpr_set_masked(u_int regaddr, uint32_t clrbits, uint32_t setbits); + +#endif |