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Wolfgang Denk97caf672006-03-12 02:12:27 +01001/*
2 * U-boot - global_data.h Declarations for global data of u-boot
3 *
Aubrey Li314d22f2007-04-05 18:31:18 +08004 * Copyright (c) 2005-2007 Analog Devices Inc.
Wolfgang Denk97caf672006-03-12 02:12:27 +01005 *
Wolfgang Denkf710efd2010-07-24 20:22:02 +02006 * (C) Copyright 2000-2010
Wolfgang Denk97caf672006-03-12 02:12:27 +01007 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 *
9 * See file CREDITS for list of people who contributed to this
10 * project.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
Aubrey Li314d22f2007-04-05 18:31:18 +080024 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
25 * MA 02110-1301 USA
Wolfgang Denk97caf672006-03-12 02:12:27 +010026 */
27
28#ifndef __ASM_GBL_DATA_H
29#define __ASM_GBL_DATA_H
30
Mike Frysinger66bcb2c2009-11-09 18:08:09 -050031#include <asm/u-boot.h>
32
Wolfgang Denk97caf672006-03-12 02:12:27 +010033/*
34 * The following data structure is placed in some memory wich is
35 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
36 * some locked parts of the data cache) to allow for a minimum set of
37 * global variables during system initialization (until we have set
38 * up the memory controller so that we can use RAM).
Wolfgang Denk97caf672006-03-12 02:12:27 +010039 */
40typedef struct global_data {
41 bd_t *bd;
42 unsigned long flags;
43 unsigned long board_type;
44 unsigned long baudrate;
45 unsigned long have_console; /* serial_init() was called */
Graeme Russ3c28f482011-09-01 00:48:27 +000046#ifdef CONFIG_PRE_CONSOLE_BUFFER
47 unsigned long precon_buf_idx; /* Pre-Console buffer index */
48#endif
Becky Brucea36601e2008-06-09 20:37:16 -050049 phys_size_t ram_size; /* RAM size */
Aubrey.Li9da597f2007-03-09 13:38:44 +080050 unsigned long env_addr; /* Address of Environment struct */
Wolfgang Denk97caf672006-03-12 02:12:27 +010051 unsigned long env_valid; /* Checksum of Environment valid? */
Aubrey.Li9da597f2007-03-09 13:38:44 +080052#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
53 unsigned long post_log_word; /* Record POST activities */
Valentin Longchampb9181732011-08-03 02:37:01 +000054 unsigned long post_log_res; /* success of POST test */
Aubrey.Li9da597f2007-03-09 13:38:44 +080055 unsigned long post_init_f_time; /* When post_init_f started */
56#endif
57
Wolfgang Denkf710efd2010-07-24 20:22:02 +020058 void **jt; /* jump table */
59 char env_buf[32]; /* buffer for getenv() before reloc. */
Wolfgang Denk97caf672006-03-12 02:12:27 +010060} gd_t;
61
Mike Frysinger211c2102012-03-18 14:31:24 +000062#include <asm-generic/global_data_flags.h>
Wolfgang Denk97caf672006-03-12 02:12:27 +010063
Mike Frysinger5dd14f82012-02-16 01:10:43 -050064#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("P3")
Wolfgang Denk97caf672006-03-12 02:12:27 +010065
66#endif