xref: /freebsd/sys/x86/include/fdt.h (revision cc16dea626cf2fc80cde667ac4798065108e596c)
1 /*-
2  * Copyright (c) 2013 Juniper Networks, Inc.
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  * $FreeBSD$
27  */
28 
29 #ifndef _MACHINE_FDT_H_
30 #define _MACHINE_FDT_H_
31 
32 #include <machine/intr_machdep.h>
33 #include <x86/bus.h>
34 
35 /* Max interrupt number. */
36 #define FDT_INTR_MAX	NUM_IO_INTS
37 
38 /* Map phandle/intpin pair to global IRQ number */
39 #define	FDT_MAP_IRQ(node, pin)	\
40 	    (panic("%s: FDT_MAP_IRQ(%#x, %#x)", __func__, node, pin), -1)
41 
42 /* Bus space tag. XXX we only support I/O port space this way. */
43 #define fdtbus_bs_tag	X86_BUS_SPACE_IO
44 
45 struct mem_region {
46 	vm_offset_t	mr_start;
47 	vm_size_t	mr_size;
48 };
49 
50 __BEGIN_DECLS
51 int x86_init_fdt(void);
52 __END_DECLS
53 
54 #endif /* _MACHINE_FDT_H_ */
55