imx51_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/imx51_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
49imx51_lastaddr(platform_t plat)
50{
51
52	return (devmap_lastaddr());
53}
54
55static int
56imx51_attach(platform_t plat)
57{
58
59	/* XXX - Get rid of this stuff soon. */
60	boothowto |= RB_VERBOSE|RB_MULTIPLE;
61	bootverbose = 1;
62
63	return (0);
64}
65
66/*
67 * Set up static device mappings.  This is hand-optimized platform-specific
68 * config data which covers most of the common on-chip devices with a few 1MB
69 * section mappings.
70 *
71 * Notably missing are entries for GPU, IPU, in general anything video related.
72 */
73static int
74imx51_devmap_init(platform_t plat)
75{
76
77	devmap_add_entry(0x70000000, 0x00100000);
78	devmap_add_entry(0x73f00000, 0x00100000);
79	devmap_add_entry(0x83f00000, 0x00100000);
80
81	return (0);
82}
83
84static void
85imx51_cpu_reset(platform_t plat)
86{
87
88	imx_wdog_cpu_reset(0x73F98000);
89}
90
91u_int imx_soc_type()
92{
93	return (IMXSOC_51);
94}
95
96static platform_method_t imx51_methods[] = {
97	PLATFORMMETHOD(platform_attach,		imx51_attach),
98	PLATFORMMETHOD(platform_devmap_init,	imx51_devmap_init),
99	PLATFORMMETHOD(platform_lastaddr,	imx51_lastaddr),
100	PLATFORMMETHOD(platform_cpu_reset,	imx51_cpu_reset),
101
102	PLATFORMMETHOD_END,
103};
104
105FDT_PLATFORM_DEF(imx51, "i.MX51", 0, "fsl,imx51", 0);
106