1264977Sian/*-
2264977Sian * Copyright (c) 2014 Ian Lepore <ian@freebsd.org>
3264977Sian * All rights reserved.
4264977Sian *
5264977Sian * Redistribution and use in source and binary forms, with or without
6264977Sian * modification, are permitted provided that the following conditions
7264977Sian * are met:
8264977Sian * 1. Redistributions of source code must retain the above copyright
9264977Sian *    notice, this list of conditions and the following disclaimer.
10264977Sian * 2. Redistributions in binary form must reproduce the above copyright
11264977Sian *    notice, this list of conditions and the following disclaimer in the
12264977Sian *    documentation and/or other materials provided with the distribution.
13264977Sian *
14264977Sian * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15264977Sian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16264977Sian * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17264977Sian * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18264977Sian * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19264977Sian * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20264977Sian * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21264977Sian * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22264977Sian * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23264977Sian * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24264977Sian * SUCH DAMAGE.
25264977Sian *
26264977Sian * $FreeBSD$
27264977Sian */
28264977Sian
29264977Sian#ifndef	IMX_CCMVAR_H
30264977Sian#define	IMX_CCMVAR_H
31264977Sian
32264977Sian/*
33264977Sian * We need a clock management system that works across unrelated SoCs and
34264977Sian * devices.  For now, to keep imx development moving, define some barebones
35264977Sian * functionality that can be shared within the imx family by having each SoC
36264977Sian * implement functions with a common name.
37264977Sian *
38264977Sian * The usb enable functions are best-effort.  They turn on the usb otg, host,
39264977Sian * and phy clocks in a SoC-specific manner, but it may take a lot more than that
40264977Sian * to make usb work on a given board.  In particular, it can require specific
41264977Sian * pinmux setup of gpio pins connected to external phy parts, voltage regulators
42264977Sian * and overcurrent detectors, and so on.  On such boards, u-boot or other early
43264977Sian * board setup code has to handle those things.
44264977Sian */
45264977Sian
46264977Sianuint32_t imx_ccm_ipg_hz(void);
47264977Sianuint32_t imx_ccm_perclk_hz(void);
48264977Sianuint32_t imx_ccm_sdhci_hz(void);
49264977Sianuint32_t imx_ccm_uart_hz(void);
50264977Sian
51264977Sianvoid imx_ccm_usb_enable(device_t _usbdev);
52264977Sianvoid imx_ccm_usbphy_enable(device_t _phydev);
53264977Sian
54264977Sian#endif
55