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("$FreeBSD$");
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
44 #include <machine/armreg.h>
45 #include <machine/bus.h>
46 #include <machine/devmap.h>
47 #include <machine/machdep.h>
48 #include <machine/platform.h>
49
50 vm_offset_t
platform_lastaddr(void)51 platform_lastaddr(void)
52 {
53
54 return (arm_devmap_lastaddr());
55 }
56
57 void
platform_probe_and_attach(void)58 platform_probe_and_attach(void)
59 {
60
61 }
62
63 void
platform_gpio_init(void)64 platform_gpio_init(void)
65 {
66
67 }
68
69 void
platform_late_init(void)70 platform_late_init(void)
71 {
72
73 }
74
75 int
platform_devmap_init(void)76 platform_devmap_init(void)
77 {
78
79 /* UART */
80 arm_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 arm_devmap_add_entry(0xffb00000, 0x100000);
91
92 /* dwmmc */
93 arm_devmap_add_entry(0xff700000, 0x100000);
94
95 /* scu */
96 arm_devmap_add_entry(0xfff00000, 0x100000);
97
98 /* FPGA memory window, 256MB */
99 arm_devmap_add_entry(0xd0000000, 0x10000000);
100
101 return (0);
102 }
103
104 struct arm32_dma_range *
bus_dma_get_range(void)105 bus_dma_get_range(void)
106 {
107
108 return (NULL);
109 }
110
111 int
bus_dma_get_range_nb(void)112 bus_dma_get_range_nb(void)
113 {
114
115 return (0);
116 }
117