1 /*-
2  * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
3  * Copyright (c) 2015 Semihalf
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  */
28 
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31 
32 #define _ARM32_BUS_DMA_PRIVATE
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/bus.h>
36 #include <sys/lock.h>
37 #include <sys/mutex.h>
38 #include <sys/devmap.h>
39 
40 #include <vm/vm.h>
41 #include <vm/pmap.h>
42 
43 #include <machine/bus.h>
44 #include <machine/frame.h> /* For trapframe_t, used in <machine/machdep.h> */
45 #include <machine/machdep.h>
46 #include <machine/platform.h>
47 #include <machine/fdt.h>
48 
49 #include <dev/fdt/fdt_common.h>
50 
51 #include "opt_ddb.h"
52 #include "opt_platform.h"
53 
54 #define	DEVMAP_MAX_VA_ADDRESS		0xF0000000
55 bus_addr_t al_devmap_pa;
56 bus_addr_t al_devmap_size;
57 
58 int alpine_get_devmap_base(bus_addr_t *pa, bus_addr_t *size);
59 
60 vm_offset_t
61 platform_lastaddr(void)
62 {
63 
64 	return (DEVMAP_MAX_VA_ADDRESS);
65 }
66 
67 void
68 platform_probe_and_attach(void)
69 {
70 
71 }
72 
73 void
74 platform_gpio_init(void)
75 {
76 
77 }
78 
79 void
80 platform_late_init(void)
81 {
82 
83 }
84 
85 /*
86  * Construct devmap table with DT-derived config data.
87  */
88 int
89 platform_devmap_init(void)
90 {
91 	alpine_get_devmap_base(&al_devmap_pa, &al_devmap_size);
92 	devmap_add_entry(al_devmap_pa, al_devmap_size);
93 	return (0);
94 }
95 
96 struct arm32_dma_range *
97 bus_dma_get_range(void)
98 {
99 
100 	return (NULL);
101 }
102 
103 int
104 bus_dma_get_range_nb(void)
105 {
106 
107 	return (0);
108 }
109