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 unsigned int nr; /* architecture number */
20 const char *name; /* architecture name */
21 unsigned long atag_offset; /* tagged list (relative) */
22 const char **dt_compat; /* array of device tree
23 * 'compatible' strings */
25 unsigned int nr_irqs; /* number of IRQs */
27 #ifdef CONFIG_ZONE_DMA
28 unsigned long dma_zone_size; /* size of DMA-able area */
31 unsigned int video_start; /* start of video RAM */
32 unsigned int video_end; /* end of video RAM */
34 unsigned int reserve_lp0 :1; /* never has lp0 */
35 unsigned int reserve_lp1 :1; /* never has lp1 */
36 unsigned int reserve_lp2 :1; /* never has lp2 */
37 unsigned int soft_reboot :1; /* soft reboot */
38 void (*fixup)(struct tag *, char **,
40 void (*reserve)(void);/* reserve mem blocks */
41 void (*map_io)(void);/* IO mapping function */
42 void (*init_early)(void);
43 void (*init_irq)(void);
44 struct sys_timer *timer; /* system tick timer */
45 void (*init_machine)(void);
46 #ifdef CONFIG_MULTI_IRQ_HANDLER
47 void (*handle_irq)(struct pt_regs *);
52 * Current machine - only accessible during boot.
54 extern struct machine_desc *machine_desc;
57 * Machine type table - also only accessible during boot
59 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
60 #define for_each_machine_desc(p) \
61 for (p = __arch_info_begin; p < __arch_info_end; p++)
64 * Set of macros to define architecture features. This is built into
65 * a table by the linker.
67 #define MACHINE_START(_type,_name) \
68 static const struct machine_desc __mach_desc_##_type \
70 __attribute__((__section__(".arch.info.init"))) = { \
71 .nr = MACH_TYPE_##_type, \
77 #define DT_MACHINE_START(_name, _namestr) \
78 static const struct machine_desc __mach_desc_##_name \
80 __attribute__((__section__(".arch.info.init"))) = { \