exynos5_machdep.c revision 252391 
1/*-
2 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
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_ddb.h"
28#include "opt_platform.h"
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/arm/samsung/exynos/exynos5_machdep.c 252391 2013-06-29 23:39:05Z ray $");
32
33#define _ARM32_BUS_DMA_PRIVATE
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/bus.h>
37
38#include <vm/vm.h>
39#include <vm/pmap.h>
40
41#include <machine/bus.h>
42#include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
43#include <machine/machdep.h>
44#include <machine/pmap.h>
45
46#include <dev/fdt/fdt_common.h>
47
48#define	DEVMAP_BOOTSTRAP_MAP_START 0xE0000000
49
50extern int unmapped_buf_allowed;
51
52vm_offset_t
53initarm_lastaddr(void)
54{
55
56	return (DEVMAP_BOOTSTRAP_MAP_START - ARM_NOCACHE_KVA_SIZE);
57}
58
59void
60initarm_gpio_init(void)
61{
62}
63
64void
65initarm_late_init(void)
66{
67
68	/* XXX: PR arm/180080 */
69	unmapped_buf_allowed = 0;
70}
71
72#define FDT_DEVMAP_MAX	(1 + 2 + 1 + 1)	/* FIXME */
73static struct pmap_devmap fdt_devmap[FDT_DEVMAP_MAX] = {
74	{ 0, 0, 0, 0, 0, }
75};
76
77/*
78 * Construct pmap_devmap[] with DT-derived config data.
79 */
80int
81platform_devmap_init(void)
82{
83	int i;
84
85	i = 0;
86	fdt_devmap[i].pd_va = 0xe2C00000;
87	fdt_devmap[i].pd_pa = 0x12C00000;
88	fdt_devmap[i].pd_size = 0x100000;
89	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
90	fdt_devmap[i].pd_cache = PTE_NOCACHE;
91	i++;
92
93	pmap_devmap_bootstrap_table = &fdt_devmap[0];
94	return (0);
95}
96
97struct arm32_dma_range *
98bus_dma_get_range(void)
99{
100
101	return (NULL);
102}
103
104int
105bus_dma_get_range_nb(void)
106{
107
108	return (0);
109}
110