3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
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).
39 * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
42 typedef struct global_data {
45 unsigned long baudrate;
46 unsigned long cpu_clk; /* CPU clock in Hz! */
47 unsigned long bus_clk;
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 */
56 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
57 unsigned long fb_base; /* Base address of framebuffer memory */
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 */
63 #ifdef CONFIG_BOARD_TYPES
64 unsigned long board_type;
66 #ifdef CONFIG_MODEM_SUPPORT
67 unsigned long do_mdm_init;
68 unsigned long be_quiet;
71 unsigned long kbd_status;
73 void **jt; /* jump table */
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) */
87 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("%g7")
89 #endif /* __ASM_GBL_DATA_H */