include/asm-arm/mach/arch.h

   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
  13 struct tag;
  14 struct meminfo;
  15 struct sys_timer;
  16
  17 struct machine_desc {
  18         /*
  19          * Note! The first five elements are used
  20          * by assembler code in head-armv.S
  21          */
  22         unsigned int            nr;             /* architecture number  */
  23         unsigned int            phys_ram;       /* start of physical ram */
  24         unsigned int            phys_io;        /* start of physical io */
  25         unsigned int            io_pg_offst;    /* byte offset for io
  26                                                  * page tabe entry      */
  27
  28         const char              *name;          /* architecture name    */
  29         unsigned int            param_offset;   /* parameter page       */
  30
  31         unsigned int            video_start;    /* start of video RAM   */
  32         unsigned int            video_end;      /* end of video RAM     */
  33
  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 machine_desc *,
  39                                          struct tag *, char **,
  40                                          struct meminfo *);
  41         void                    (*map_io)(void);/* IO mapping function  */
  42         void                    (*init_irq)(void);
  43         struct sys_timer        *timer;         /* system tick timer    */
  44         void                    (*init_machine)(void);
  45 };
  46
  47 /*
  48  * Set of macros to define architecture features.  This is built into
  49  * a table by the linker.
  50  */
  51 #define MACHINE_START(_type,_name)              \
  52 const struct machine_desc __mach_desc_##_type   \
  53  __attribute__((__section__(".arch.info"))) = { \
  54         .nr             = MACH_TYPE_##_type,    \
  55         .name           = _name,
  56
  57 #define MAINTAINER(n)
  58
  59 #define BOOT_MEM(_pram,_pio,_vio)               \
  60         .phys_ram       = _pram,                \
  61         .phys_io        = _pio,                 \
  62         .io_pg_offst    = ((_vio)>>18)&0xfffc,
  63
  64 #define BOOT_PARAMS(_params)                    \
  65         .param_offset   = _params,
  66
  67 #define VIDEO(_start,_end)                      \
  68         .video_start    = _start,               \
  69         .video_end      = _end,
  70
  71 #define DISABLE_PARPORT(_n)                     \
  72         .reserve_lp##_n = 1,
  73
  74 #define SOFT_REBOOT                             \
  75         .soft_reboot    = 1,
  76
  77 #define FIXUP(_func)                            \
  78         .fixup          = _func,
  79
  80 #define MAPIO(_func)                            \
  81         .map_io         = _func,
  82
  83 #define INITIRQ(_func)                          \
  84         .init_irq       = _func,
  85
  86 #define INIT_MACHINE(_func)                     \
  87         .init_machine   = _func,
  88
  89 #define MACHINE_END                             \
  90 };
  91
  92 #endif