a10_machdep.c revision 259365 
154561Sbp/*-
254561Sbp * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@gmail.com>
370711Sobrien * All rights reserved.
454561Sbp *
570711Sobrien * This code is derived from software written for Brini by Mark Brinicombe
670711Sobrien *
754561Sbp * Redistribution and use in source and binary forms, with or without
854561Sbp * modification, are permitted provided that the following conditions
954561Sbp * are met:
1059061Sbp * 1. Redistributions of source code must retain the above copyright
1154561Sbp *    notice, this list of conditions and the following disclaimer.
1254561Sbp * 2. Redistributions in binary form must reproduce the above copyright
1354561Sbp *    notice, this list of conditions and the following disclaimer in the
1454561Sbp *    documentation and/or other materials provided with the distribution.
1554561Sbp *
1654561Sbp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1754561Sbp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1854561Sbp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19151350Syar * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
2054561Sbp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2154561Sbp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2254561Sbp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2354561Sbp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2454561Sbp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2554561Sbp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2656424Sbp * SUCH DAMAGE.
2756424Sbp *
2856424Sbp * from: FreeBSD: //depot/projects/arm/src/sys/arm/ti/ti_machdep.c
2956424Sbp */
3056424Sbp
3156424Sbp#include "opt_ddb.h"
32151350Syar#include "opt_platform.h"
3356424Sbp
3460966Speter#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: stable/10/sys/arm/allwinner/a10_machdep.c 259365 2013-12-14 00:16:08Z 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_early_init(void)
66{
67
68}
69
70void
71initarm_gpio_init(void)
72{
73}
74
75void
76initarm_late_init(void)
77{
78}
79
80#define FDT_DEVMAP_MAX		(1 + 2 + 1 + 1)
81static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = {
82	{ 0, 0, 0, 0, 0, }
83};
84
85/*
86 * Construct pmap_devmap[] with DT-derived config data.
87 */
88int
89initarm_devmap_init(void)
90{
91	int i = 0;
92
93	fdt_devmap[i].pd_va =   0xE1C00000;
94	fdt_devmap[i].pd_pa =   0x01C00000;
95	fdt_devmap[i].pd_size = 0x00400000;	/* 4 MB */
96	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
97	fdt_devmap[i].pd_cache = PTE_DEVICE;
98
99	i++;
100
101	arm_devmap_register_table(&fdt_devmap[0]);
102
103	return (0);
104}
105
106struct arm32_dma_range *
107bus_dma_get_range(void)
108{
109	return (NULL);
110}
111
112int
113bus_dma_get_range_nb(void)
114{
115	return (0);
116}
117
118void
119cpu_reset()
120{
121	a10wd_watchdog_reset();
122	printf("Reset failed!\n");
123	while (1);
124}
125