virt_machdep.c revision 281439 
1/*-
2 * Copyright (c) 2015 Andrew Turner
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
28#include "opt_platform.h"
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/arm/qemu/virt_machdep.c 281439 2015-04-11 17:52:47Z andrew $");
32
33#define _ARM32_BUS_DMA_PRIVATE
34#include <sys/param.h>
35#include <sys/systm.h>
36
37#include <vm/vm.h>
38
39#include <machine/bus.h>
40#include <machine/devmap.h>
41#include <machine/platform.h>
42#include <machine/platformvar.h>
43
44#include "platform_if.h"
45
46struct arm32_dma_range *
47bus_dma_get_range(void)
48{
49
50	return (NULL);
51}
52
53int
54bus_dma_get_range_nb(void)
55{
56
57	return (0);
58}
59
60void
61cpu_reset(void)
62{
63
64	while (1);
65}
66
67static vm_offset_t
68virt_lastaddr(platform_t plat)
69{
70
71	return (arm_devmap_lastaddr());
72}
73
74/*
75 * Set up static device mappings.
76 */
77static int
78virt_devmap_init(platform_t plat)
79{
80
81	arm_devmap_add_entry(0x09000000, 0x100000); /* Uart */
82	return (0);
83}
84
85static platform_method_t virt_methods[] = {
86	PLATFORMMETHOD(platform_devmap_init,	virt_devmap_init),
87	PLATFORMMETHOD(platform_lastaddr,	virt_lastaddr),
88
89	PLATFORMMETHOD_END,
90};
91
92FDT_PLATFORM_DEF(virt, "virt", 0, "linux,dummy-virt");
93