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
  16 struct machine_desc {
  17         /*
  18          * Note! The first four elements are used
  19          * by assembler code in head-armv.S
  20          */
  21         unsigned int            nr;             /* architecture number  */
  22         unsigned int            phys_ram;       /* start of physical ram */
  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 int            param_offset;   /* parameter page       */
  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         void                    (*init_time)(void);
  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 const struct machine_desc __mach_desc_##_type   \
  52  __attribute__((__section__(".arch.info"))) = { \
  53         .nr             = MACH_TYPE_##_type,    \
  54         .name           = _name,
  55
  56 #define MAINTAINER(n)
  57
  58 #define BOOT_MEM(_pram,_pio,_vio)               \
  59         .phys_ram       = _pram,                \
  60         .phys_io        = _pio,                 \
  61         .io_pg_offst    = ((_vio)>>18)&0xfffc,
  62
  63 #define BOOT_PARAMS(_params)                    \
  64         .param_offset   = _params,
  65
  66 #define VIDEO(_start,_end)                      \
  67         .video_start    = _start,               \
  68         .video_end      = _end,
  69
  70 #define DISABLE_PARPORT(_n)                     \
  71         .reserve_lp##_n = 1,
  72
  73 #define SOFT_REBOOT                             \
  74         .soft_reboot    = 1,
  75
  76 #define FIXUP(_func)                            \
  77         .fixup          = _func,
  78
  79 #define MAPIO(_func)                            \
  80         .map_io         = _func,
  81
  82 #define INITIRQ(_func)                          \
  83         .init_irq       = _func,
  84
  85 #define INITTIME(_func)                         \
  86         .init_time      = _func,
  87
  88 #define INIT_MACHINE(_func)                     \
  89         .init_machine   = _func,
  90
  91 #define MACHINE_END                             \
  92 };
  93
  94 #endif