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_CCMVAR_H
28#define	IMX_CCMVAR_H
29
30/*
31 * We need a clock management system that works across unrelated SoCs and
32 * devices.  For now, to keep imx development moving, define some barebones
33 * functionality that can be shared within the imx family by having each SoC
34 * implement functions with a common name.
35 *
36 * The usb enable functions are best-effort.  They turn on the usb otg, host,
37 * and phy clocks in a SoC-specific manner, but it may take a lot more than that
38 * to make usb work on a given board.  In particular, it can require specific
39 * pinmux setup of gpio pins connected to external phy parts, voltage regulators
40 * and overcurrent detectors, and so on.  On such boards, u-boot or other early
41 * board setup code has to handle those things.
42 */
43
44uint32_t imx_ccm_ecspi_hz(void);
45uint32_t imx_ccm_ipg_hz(void);
46uint32_t imx_ccm_perclk_hz(void);
47uint32_t imx_ccm_sdhci_hz(void);
48uint32_t imx_ccm_uart_hz(void);
49uint32_t imx_ccm_ahb_hz(void);
50uint32_t imx_ccm_ipu_hz(void);
51
52void imx_ccm_usb_enable(device_t _usbdev);
53void imx_ccm_usbphy_enable(device_t _phydev);
54void imx_ccm_ssi_configure(device_t _ssidev);
55int imx_ccm_pll_video_enable(void);
56void imx_ccm_hdmi_enable(void);
57void imx_ccm_ipu_enable(int ipu);
58int  imx6_ccm_sata_enable(void);
59
60/* Routines to get and set the arm clock root divisor register. */
61uint32_t imx_ccm_get_cacrr(void);
62void     imx_ccm_set_cacrr(uint32_t _divisor);
63
64#endif
65