xref: /freebsd-10.1-release/sys/arm/freescale/imx/imx6_anatopvar.h

/*-
 * Copyright (c) 2013 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: stable/10/sys/arm/freescale/imx/imx6_anatopvar.h 266201 2014-05-15 22:50:06Z ian $
 */

#ifndef	IMX6_ANATOPVAR_H
#define	IMX6_ANATOPVAR_H

/*
 * All registers controlling various analog aspects of the SoC (such as PLLs or
 * voltage regulators or USB VBUS detection) are gathered together under the
 * anatop device (because of newbus hierarchical resource management), but other
 * drivers such as CMM or USBPHY need access to these registers.  These
 * functions let them have at the hardware directly.  No effort is made by these
 * functions to mediate concurrent access.
 */
uint32_t imx6_anatop_read_4(bus_size_t _offset);
void imx6_anatop_write_4(bus_size_t _offset, uint32_t _value);

uint32_t imx6_get_cpu_clock(void);

#endif