1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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
29 #ifndef IMX_MACHDEP_H
30 #define IMX_MACHDEP_H
31
32 #include <sys/types.h>
33 #include <sys/sysctl.h>
34
35 SYSCTL_DECL(_hw_imx);
36
37 /* Common functions, implemented in imx_machdep.c. */
38
39 void imx_wdog_cpu_reset(vm_offset_t _wdcr_phys) __attribute__((__noreturn__));
40 void imx_wdog_init_last_reset(vm_offset_t _wdsr_phys);
41
42 /* From here down, routines are implemented in imxNN_machdep.c. */
43
44 /*
45 * SoC identity.
46 * According to the documentation, there is such a thing as an i.MX6 Dual
47 * (non-lite flavor). However, Freescale doesn't seem to have assigned it a
48 * number in their code for determining the SoC type in u-boot.
49 *
50 * To-do: put silicon revision numbers into the low-order bits somewhere.
51 */
52 #define IMXSOC_51 0x51000000
53 #define IMXSOC_53 0x53000000
54 #define IMXSOC_6SL 0x60000000
55 #define IMXSOC_6DL 0x61000000
56 #define IMXSOC_6S 0x62000000
57 #define IMXSOC_6Q 0x63000000
58 #define IMXSOC_6UL 0x64000000
59 #define IMXSOC_FAMSHIFT 28
60
61 u_int imx_soc_type(void);
62
63 static inline u_int
imx_soc_family(void)64 imx_soc_family(void)
65 {
66 return (imx_soc_type() >> IMXSOC_FAMSHIFT);
67 }
68
69 #endif
70