2 * arch/arm/include/asm/mach/arch.h
4 * Copyright (C) 2000 Russell King
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.
19 * Note! The first two elements are used
20 * by assembler code in head.S, head-common.S
22 unsigned int nr; /* architecture number */
23 const char *name; /* architecture name */
24 unsigned long boot_params; /* tagged list */
26 unsigned int nr_irqs; /* number of IRQs */
28 unsigned int video_start; /* start of video RAM */
29 unsigned int video_end; /* end of video RAM */
31 unsigned int reserve_lp0 :1; /* never has lp0 */
32 unsigned int reserve_lp1 :1; /* never has lp1 */
33 unsigned int reserve_lp2 :1; /* never has lp2 */
34 unsigned int soft_reboot :1; /* soft reboot */
35 void (*fixup)(struct machine_desc *,
36 struct tag *, char **,
38 void (*reserve)(void);/* reserve mem blocks */
39 void (*map_io)(void);/* IO mapping function */
40 void (*init_early)(void);
41 void (*init_irq)(void);
42 struct sys_timer *timer; /* system tick timer */
43 void (*init_machine)(void);
44 #ifdef CONFIG_MULTI_IRQ_HANDLER
45 void (*handle_irq)(struct pt_regs *);
50 * Current machine - only accessible during boot.
52 extern struct machine_desc *machine_desc;
55 * Set of macros to define architecture features. This is built into
56 * a table by the linker.
58 #define MACHINE_START(_type,_name) \
59 static const struct machine_desc __mach_desc_##_type \
61 __attribute__((__section__(".arch.info.init"))) = { \
62 .nr = MACH_TYPE_##_type, \