1/*
2 *  linux/include/asm-arm/mach/arch.h
3 *
4 *  Copyright (C) 2000 Russell King
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
10
11#ifndef __ASSEMBLY__
12
13struct tag;
14struct meminfo;
15struct sys_timer;
16
17struct machine_desc {
18	/*
19	 * Note! The first four elements are used
20	 * by assembler code in head-armv.S
21	 */
22	unsigned int		nr;		/* architecture number	*/
23	unsigned int		phys_io;	/* start of physical io	*/
24	unsigned int		io_pg_offst;	/* byte offset for io
25						 * page tabe entry	*/
26
27	const char		*name;		/* architecture name	*/
28	unsigned long		boot_params;	/* tagged list		*/
29
30	unsigned int		video_start;	/* start of video RAM	*/
31	unsigned int		video_end;	/* end of video RAM	*/
32
33	unsigned int		reserve_lp0 :1;	/* never has lp0	*/
34	unsigned int		reserve_lp1 :1;	/* never has lp1	*/
35	unsigned int		reserve_lp2 :1;	/* never has lp2	*/
36	unsigned int		soft_reboot :1;	/* soft reboot		*/
37	void			(*fixup)(struct machine_desc *,
38					 struct tag *, char **,
39					 struct meminfo *);
40	void			(*map_io)(void);/* IO mapping function	*/
41	void			(*init_irq)(void);
42	struct sys_timer	*timer;		/* system tick timer	*/
43	void			(*init_machine)(void);
44};
45
46/*
47 * Set of macros to define architecture features.  This is built into
48 * a table by the linker.
49 */
50#define MACHINE_START(_type,_name)			\
51static const struct machine_desc __mach_desc_##_type	\
52 __used							\
53 __attribute__((__section__(".arch.info.init"))) = {	\
54	.nr		= MACH_TYPE_##_type,		\
55	.name		= _name,
56
57#define MACHINE_END				\
58};
59
60#endif
61