79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/*
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* U-boot - global_data.h Declarations for global data of u-boot
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*
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* Copyright (c) 2005-2007 Analog Devices Inc.
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*
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* (C) Copyright 2000-2010
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef __ASM_GBL_DATA_H
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#define __ASM_GBL_DATA_H
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#include <asm/u-boot.h>
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/*
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* The following data structure is placed in some memory wich is
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* available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
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* some locked parts of the data cache) to allow for a minimum set of
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* global variables during system initialization (until we have set
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* up the memory controller so that we can use RAM).
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*
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* Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
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*/
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typedef struct global_data {
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bd_t *bd;
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unsigned long flags;
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unsigned long board_type;
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unsigned long baudrate;
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unsigned long have_console; /* serial_init() was called */
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#ifdef CONFIG_PRE_CONSOLE_BUFFER
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unsigned long precon_buf_idx; /* Pre-Console buffer index */
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#endif
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phys_size_t ram_size; /* RAM size */
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unsigned long env_addr; /* Address of Environment struct */
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unsigned long env_valid; /* Checksum of Environment valid? */
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#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
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unsigned long post_log_word; /* Record POST activities */
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unsigned long post_log_res; /* success of POST test */
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unsigned long post_init_f_time; /* When post_init_f started */
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#endif
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void **jt; /* jump table */
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char env_buf[32]; /* buffer for getenv() before reloc. */
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} gd_t;
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/*
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* Global Data Flags
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*/
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#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
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#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
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#define GD_FLG_SILENT 0x00004 /* Silent mode */
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#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
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#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
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#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
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#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
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#define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */
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#define DECLARE_GLOBAL_DATA_PTR register gd_t * volatile gd asm ("P3")
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#endif
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