1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2013 Ian Lepore <ian@freebsd.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef	IMX_MACHDEP_H
32#define	IMX_MACHDEP_H
33
34#include <sys/types.h>
35#include <sys/sysctl.h>
36
37SYSCTL_DECL(_hw_imx);
38
39/* Common functions, implemented in imx_machdep.c. */
40
41void imx_wdog_cpu_reset(vm_offset_t _wdcr_phys)  __attribute__((__noreturn__));
42void imx_wdog_init_last_reset(vm_offset_t _wdsr_phys);
43
44/* From here down, routines are implemented in imxNN_machdep.c. */
45
46/*
47 * SoC identity.
48 * According to the documentation, there is such a thing as an i.MX6 Dual
49 * (non-lite flavor).  However, Freescale doesn't seem to have assigned it a
50 * number in their code for determining the SoC type in u-boot.
51 *
52 * To-do: put silicon revision numbers into the low-order bits somewhere.
53 */
54#define	IMXSOC_51	0x51000000
55#define	IMXSOC_53	0x53000000
56#define	IMXSOC_6SL	0x60000000
57#define	IMXSOC_6DL	0x61000000
58#define	IMXSOC_6S	0x62000000
59#define	IMXSOC_6Q	0x63000000
60#define	IMXSOC_6UL	0x64000000
61#define	IMXSOC_FAMSHIFT	28
62
63u_int imx_soc_type(void);
64
65static inline u_int
66imx_soc_family(void)
67{
68	return (imx_soc_type() >> IMXSOC_FAMSHIFT);
69}
70
71#endif
72
73