a10_machdep.c revision 259364 
1/*-
2 * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@gmail.com>
3 * All rights reserved.
4 *
5 * This code is derived from software written for Brini by Mark Brinicombe
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 * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
29 */
30
31#include "opt_ddb.h"
32#include "opt_platform.h"
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: stable/10/sys/arm/allwinner/a10_machdep.c 259364 2013-12-13 23:56:53Z ian $");
36
37#define _ARM32_BUS_DMA_PRIVATE
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/bus.h>
41
42#include <vm/vm.h>
43#include <vm/pmap.h>
44
45#include <machine/bus.h>
46#include <machine/devmap.h>
47#include <machine/machdep.h>
48
49#include <dev/fdt/fdt_common.h>
50
51#include <arm/allwinner/a10_wdog.h>
52
53/* Start of address space used for bootstrap map */
54#define DEVMAP_BOOTSTRAP_MAP_START      0xE0000000
55
56
57vm_offset_t
58initarm_lastaddr(void)
59{
60
61	return (DEVMAP_BOOTSTRAP_MAP_START);
62}
63
64void
65initarm_gpio_init(void)
66{
67}
68
69void
70initarm_late_init(void)
71{
72}
73
74#define FDT_DEVMAP_MAX		(1 + 2 + 1 + 1)
75static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = {
76	{ 0, 0, 0, 0, 0, }
77};
78
79/*
80 * Construct pmap_devmap[] with DT-derived config data.
81 */
82int
83platform_devmap_init(void)
84{
85	int i = 0;
86
87	fdt_devmap[i].pd_va =   0xE1C00000;
88	fdt_devmap[i].pd_pa =   0x01C00000;
89	fdt_devmap[i].pd_size = 0x00400000;	/* 4 MB */
90	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
91	fdt_devmap[i].pd_cache = PTE_DEVICE;
92
93	i++;
94
95	arm_devmap_register_table(&fdt_devmap[0]);
96
97	return (0);
98}
99
100struct arm32_dma_range *
101bus_dma_get_range(void)
102{
103	return (NULL);
104}
105
106int
107bus_dma_get_range_nb(void)
108{
109	return (0);
110}
111
112void
113cpu_reset()
114{
115	a10wd_watchdog_reset();
116	printf("Reset failed!\n");
117	while (1);
118}
119