LXR uboot/arch/sandbox/include/asm/global

   1/*
   2 * Copyright (c) 2011 The Chromium OS Authors.
   3 *
   4 * (C) Copyright 2002-2010
   5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6 *
   7 * See file CREDITS for list of people who contributed to this
   8 * project.
   9 *
  10 * This program is free software; you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation; either version 2 of
  13 * the License, or (at your option) any later version.
  14 *
  15 * This program is distributed in the hope that it will be useful,
  16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 * GNU General Public License for more details.
  19 *
  20 * You should have received a copy of the GNU General Public License
  21 * along with this program; if not, write to the Free Software
  22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23 * MA 02111-1307 USA
  24 */
  25
  26#ifndef __ASM_GBL_DATA_H
  27#define __ASM_GBL_DATA_H
  28/*
  29 * The following data structure is placed in some memory wich is
  30 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
  31 * some locked parts of the data cache) to allow for a minimum set of
  32 * global variables during system initialization (until we have set
  33 * up the memory controller so that we can use RAM).
  34 *
  35 * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
  36 */
  37
  38typedef struct global_data {
  39        bd_t            *bd;
  40        unsigned long   flags;
  41        unsigned long   baudrate;
  42        unsigned long   have_console;   /* serial_init() was called */
  43        unsigned long   env_addr;       /* Address  of Environment struct */
  44        unsigned long   env_valid;      /* Checksum of Environment valid? */
  45        unsigned long   fb_base;        /* base address of frame buffer */
  46        u8              *ram_buf;       /* emulated RAM buffer */
  47        phys_size_t     ram_size;       /* RAM size */
  48        const void      *fdt_blob;      /* Our device tree, NULL if none */
  49        void            **jt;           /* jump table */
  50        char            env_buf[32];    /* buffer for getenv() before reloc. */
  51} gd_t;
  52
  53/*
  54 * Global Data Flags
  55 */
  56#define GD_FLG_RELOC            0x00001 /* Code was relocated to RAM */
  57#define GD_FLG_DEVINIT          0x00002 /* Devices have been initialized */
  58#define GD_FLG_SILENT           0x00004 /* Silent mode */
  59#define GD_FLG_POSTFAIL         0x00008 /* Critical POST test failed */
  60#define GD_FLG_POSTSTOP         0x00010 /* POST seqeunce aborted */
  61#define GD_FLG_LOGINIT          0x00020 /* Log Buffer has been initialized */
  62#define GD_FLG_DISABLE_CONSOLE  0x00040 /* Disable console (in & out) */
  63#define GD_FLG_ENV_READY        0x00080 /* Env. imported into hash table */
  64
  65#define DECLARE_GLOBAL_DATA_PTR     extern gd_t *gd
  66
  67#endif /* __ASM_GBL_DATA_H */
  68