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.
18 unsigned int nr; /* architecture number */
19 const char *name; /* architecture name */
20 unsigned long atag_offset; /* tagged list (relative) */
21 const char **dt_compat; /* array of device tree
22 * 'compatible' strings */
24 unsigned int nr_irqs; /* number of IRQs */
26 #ifdef CONFIG_ZONE_DMA
27 unsigned long dma_zone_size; /* size of DMA-able area */
30 unsigned int video_start; /* start of video RAM */
31 unsigned int video_end; /* end of video RAM */
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 tag *, char **,
39 void (*reserve)(void);/* reserve mem blocks */
40 void (*map_io)(void);/* IO mapping function */
41 void (*init_early)(void);
42 void (*init_irq)(void);
43 struct sys_timer *timer; /* system tick timer */
44 void (*init_machine)(void);
45 #ifdef CONFIG_MULTI_IRQ_HANDLER
46 void (*handle_irq)(struct pt_regs *);
51 * Current machine - only accessible during boot.
53 extern struct machine_desc *machine_desc;
56 * Machine type table - also only accessible during boot
58 extern struct machine_desc __arch_info_begin[], __arch_info_end[];
59 #define for_each_machine_desc(p) \
60 for (p = __arch_info_begin; p < __arch_info_end; p++)
63 * Set of macros to define architecture features. This is built into
64 * a table by the linker.
66 #define MACHINE_START(_type,_name) \
67 static const struct machine_desc __mach_desc_##_type \
69 __attribute__((__section__(".arch.info.init"))) = { \
70 .nr = MACH_TYPE_##_type, \
76 #define DT_MACHINE_START(_name, _namestr) \
77 static const struct machine_desc __mach_desc_##_name \
79 __attribute__((__section__(".arch.info.init"))) = { \