socfpga_machdep.c revision 302408 
1/*-
2 * Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
3 * All rights reserved.
4 *
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
7 * ("CTSRD"), as part of the DARPA CRASH research programme.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 */
30
31#include "opt_ddb.h"
32#include "opt_platform.h"
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: stable/11/sys/arm/altera/socfpga/socfpga_machdep.c 298627 2016-04-26 11:53:37Z br $");
36
37#define	_ARM32_BUS_DMA_PRIVATE
38#include <sys/param.h>
39#include <sys/systm.h>
40#include <sys/bus.h>
41#include <sys/devmap.h>
42
43#include <vm/vm.h>
44
45#include <machine/armreg.h>
46#include <machine/bus.h>
47#include <machine/machdep.h>
48#include <machine/platform.h>
49
50vm_offset_t
51platform_lastaddr(void)
52{
53
54	return (devmap_lastaddr());
55}
56
57void
58platform_probe_and_attach(void)
59{
60
61}
62
63void
64platform_gpio_init(void)
65{
66
67}
68
69void
70platform_late_init(void)
71{
72
73}
74
75int
76platform_devmap_init(void)
77{
78
79	/* UART */
80	devmap_add_entry(0xffc00000, 0x100000);
81
82	/*
83	 * USB OTG
84	 *
85	 * We use static device map for USB due to some bug in the Altera
86	 * which throws Translation Fault (P) exception on high load.
87	 * It might be caused due to some power save options being turned
88	 * on or something else.
89	 */
90	devmap_add_entry(0xffb00000, 0x100000);
91
92	/* dwmmc */
93	devmap_add_entry(0xff700000, 0x100000);
94
95	/* scu */
96	devmap_add_entry(0xfff00000, 0x100000);
97
98	/* FPGA memory window, 256MB */
99	devmap_add_entry(0xd0000000, 0x10000000);
100
101	return (0);
102}
103
104struct arm32_dma_range *
105bus_dma_get_range(void)
106{
107
108	return (NULL);
109}
110
111int
112bus_dma_get_range_nb(void)
113{
114
115	return (0);
116}
117