xref: /freebsd/sys/arm/qemu/virt_machdep.c (revision 273c26a3c3bea87a241d6879abd4f991db180bf0)
1 /*-
2  * Copyright (c) 2015 Andrew Turner
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  */
27 
28 #include "opt_platform.h"
29 
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/devmap.h>
36 
37 #include <vm/vm.h>
38 
39 #include <machine/bus.h>
40 #include <machine/platform.h>
41 #include <machine/platformvar.h>
42 
43 #include <arm/qemu/virt_mp.h>
44 
45 #include "platform_if.h"
46 
47 static vm_offset_t
48 virt_lastaddr(platform_t plat)
49 {
50 
51 	return (devmap_lastaddr());
52 }
53 
54 /*
55  * Set up static device mappings.
56  */
57 static int
58 virt_devmap_init(platform_t plat)
59 {
60 
61 	devmap_add_entry(0x09000000, 0x100000); /* Uart */
62 	return (0);
63 }
64 
65 static platform_method_t virt_methods[] = {
66 	PLATFORMMETHOD(platform_devmap_init,	virt_devmap_init),
67 	PLATFORMMETHOD(platform_lastaddr,	virt_lastaddr),
68 
69 #ifdef SMP
70 	PLATFORMMETHOD(platform_mp_start_ap,	virt_mp_start_ap),
71 	PLATFORMMETHOD(platform_mp_setmaxid,	virt_mp_setmaxid),
72 #endif
73 
74 	PLATFORMMETHOD_END,
75 };
76 
77 FDT_PLATFORM_DEF(virt, "virt", 0, "linux,dummy-virt", 1);
78 
79 static int
80 gem5_devmap_init(platform_t plat)
81 {
82 
83 	devmap_add_entry(0x1c090000, 0x100000); /* Uart */
84 	return (0);
85 }
86 
87 static platform_method_t gem5_methods[] = {
88 	PLATFORMMETHOD(platform_devmap_init,	gem5_devmap_init),
89 	PLATFORMMETHOD(platform_lastaddr,	virt_lastaddr),
90 
91 	PLATFORMMETHOD_END,
92 };
93 
94 FDT_PLATFORM_DEF(gem5, "gem5", 0, "arm,vexpress", 1);
95