1 /* 2 * arch/arm/include/asm/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 13 struct tag; 14 struct meminfo; 15 struct sys_timer; 16 17 struct machine_desc { 18 /* 19 * Note! The first four elements are used 20 * by assembler code in head.S, head-common.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) \ 51 static 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