2 * (C) Copyright 2002-2010
8 * See file CREDITS for list of people who contributed to this
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.
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.
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,
27 #ifndef __ASM_GBL_DATA_H
28 #define __ASM_GBL_DATA_H
30 #include "asm/types.h"
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).
40 typedef struct global_data {
43 unsigned long baudrate;
44 unsigned long cpu_clk; /* CPU clock in Hz! */
45 unsigned long bus_clk;
47 phys_size_t ram_size; /* RAM size */
48 unsigned long reloc_off; /* Relocation Offset */
49 unsigned long reset_status; /* reset status register at boot */
50 unsigned long env_addr; /* Address of Environment struct */
51 unsigned long env_valid; /* Checksum of Environment valid? */
52 unsigned long have_console; /* serial_init() was called */
54 #ifdef CONFIG_PRE_CONSOLE_BUFFER
55 unsigned long precon_buf_idx; /* Pre-Console buffer index */
57 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
58 unsigned long fb_base; /* Base address of framebuffer memory */
60 #if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
61 unsigned long post_log_word; /* Record POST activities */
62 unsigned long post_log_res; /* success of POST test */
63 unsigned long post_init_f_time; /* When post_init_f started */
65 #ifdef CONFIG_BOARD_TYPES
66 unsigned long board_type;
68 #ifdef CONFIG_MODEM_SUPPORT
69 unsigned long do_mdm_init;
70 unsigned long be_quiet;
73 unsigned long kbd_status;
75 void **jt; /* jump table */
76 char env_buf[32]; /* buffer for getenv() before reloc. */
79 #include <asm-generic/global_data_flags.h>
81 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("%g7")
83 #endif /* __ASM_GBL_DATA_H */