arch/sparc/include/asm/global_data.h

   1 /*
   2  * (C) Copyright 2002
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * (C) Copyright 2007
   6  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   7  *
   8  * See file CREDITS for list of people who contributed to this
   9  * project.
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  24  * MA 02111-1307 USA
  25  */
  26
  27 #ifndef __ASM_GBL_DATA_H
  28 #define __ASM_GBL_DATA_H
  29
  30 #include "asm/types.h"
  31
  32 /*
  33  * The following data structure is placed in some memory wich is
  34  * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
  35  * some locked parts of the data cache) to allow for a minimum set of
  36  * global variables during system initialization (until we have set
  37  * up the memory controller so that we can use RAM).
  38  *
  39  * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
  40  */
  41
  42 typedef struct global_data {
  43         bd_t *bd;
  44         unsigned long flags;
  45         unsigned long baudrate;
  46         unsigned long cpu_clk;  /* CPU clock in Hz!             */
  47         unsigned long bus_clk;
  48
  49         phys_size_t ram_size;           /* RAM size */
  50         unsigned long reloc_off;        /* Relocation Offset */
  51         unsigned long reset_status;     /* reset status register at boot        */
  52         unsigned long env_addr; /* Address  of Environment struct       */
  53         unsigned long env_valid;        /* Checksum of Environment valid?       */
  54         unsigned long have_console;     /* serial_init() was called */
  55
  56 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
  57         unsigned long fb_base;  /* Base address of framebuffer memory   */
  58 #endif
  59 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
  60         unsigned long post_log_word;    /* Record POST activities */
  61         unsigned long post_init_f_time; /* When post_init_f started */
  62 #endif
  63 #ifdef CONFIG_BOARD_TYPES
  64         unsigned long board_type;
  65 #endif
  66 #ifdef CONFIG_MODEM_SUPPORT
  67         unsigned long do_mdm_init;
  68         unsigned long be_quiet;
  69 #endif
  70 #ifdef CONFIG_LWMON
  71         unsigned long kbd_status;
  72 #endif
  73         void **jt;              /* jump table */
  74 } gd_t;
  75
  76 /*
  77  * Global Data Flags
  78  */
  79 #define GD_FLG_RELOC    0x00001 /* Code was relocated to RAM            */
  80 #define GD_FLG_DEVINIT  0x00002 /* Devices have been initialized        */
  81 #define GD_FLG_SILENT   0x00004 /* Silent mode                          */
  82 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed            */
  83 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted                */
  84 #define GD_FLG_LOGINIT  0x00020 /* Log Buffer has been initialized      */
  85 #define GD_FLG_DISABLE_CONSOLE  0x00040         /* Disable console (in & out)    */
  86
  87 #define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("%g7")
  88
  89 #endif                          /* __ASM_GBL_DATA_H */