imx53_machdep.c revision 331893 
1/*-
2 * Copyright (c) 2013 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#include "opt_platform.h"
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/sys/arm/freescale/imx/imx53_machdep.c 331893 2018-04-02 23:19:07Z gonzo $");
31
32#include <sys/param.h>
33#include <sys/systm.h>
34#include <sys/bus.h>
35#include <sys/reboot.h>
36#include <sys/devmap.h>
37
38#include <vm/vm.h>
39
40#include <machine/bus.h>
41#include <machine/machdep.h>
42#include <machine/platformvar.h>
43
44#include <arm/freescale/imx/imx_machdep.h>
45
46#include "platform_if.h"
47
48static vm_offset_t
49imx53_lastaddr(platform_t plat)
50{
51
52	return (devmap_lastaddr());
53}
54
55static int
56imx53_attach(platform_t plat)
57{
58
59	return (0);
60}
61
62/*
63 * Set up static device mappings.  This is hand-optimized platform-specific
64 * config data which covers most of the common on-chip devices with a few 1MB
65 * section mappings.
66 *
67 * Notably missing are entries for GPU, IPU, in general anything video related.
68 */
69static int
70imx53_devmap_init(platform_t plat)
71{
72
73	devmap_add_entry(0x50000000, 0x00100000);
74	devmap_add_entry(0x53f00000, 0x00100000);
75	devmap_add_entry(0x63f00000, 0x00100000);
76
77	return (0);
78}
79
80static void
81imx53_cpu_reset(platform_t plat)
82{
83
84	imx_wdog_cpu_reset(0x53F98000);
85}
86
87u_int imx_soc_type()
88{
89	return (IMXSOC_53);
90}
91
92static platform_method_t imx53_methods[] = {
93	PLATFORMMETHOD(platform_attach,		imx53_attach),
94	PLATFORMMETHOD(platform_devmap_init,	imx53_devmap_init),
95	PLATFORMMETHOD(platform_lastaddr,	imx53_lastaddr),
96	PLATFORMMETHOD(platform_cpu_reset,	imx53_cpu_reset),
97
98	PLATFORMMETHOD_END,
99};
100
101FDT_PLATFORM_DEF(imx53, "i.MX53", 0, "fsl,imx53", 0);
102
103