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2 * (C) Copyright 2002 - 2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #ifndef __ASM_GBL_DATA_H
25 #define __ASM_GBL_DATA_H
27 * The following data structure is placed in some memory wich is
28 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
29 * some locked parts of the data cache) to allow for a minimum set of
30 * global variables during system initialization (until we have set
31 * up the memory controller so that we can use RAM).
33 * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
36 typedef struct global_data
{
39 unsigned long baudrate
;
40 unsigned long cpu_clk
; /* CPU clock in Hz! */
41 unsigned long bus_clk
;
43 unsigned long pci_clk
;
45 #ifdef CONFIG_EXTRA_CLOCK
46 unsigned long inp_clk
;
47 unsigned long vco_clk
;
48 unsigned long flb_clk
;
51 unsigned long i2c1_clk
;
52 unsigned long i2c2_clk
;
54 phys_size_t ram_size
; /* RAM size */
55 unsigned long reloc_off
; /* Relocation Offset */
56 unsigned long reset_status
; /* reset status register at boot */
57 unsigned long env_addr
; /* Address of Environment struct */
58 unsigned long env_valid
; /* Checksum of Environment valid? */
59 unsigned long have_console
; /* serial_init() was called */
60 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
61 unsigned long fb_base
; /* Base addr of framebuffer memory */
63 #ifdef CONFIG_BOARD_TYPES
64 unsigned long board_type
;
66 void **jt
; /* Standalone app jump table */
72 #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
73 #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
74 #define GD_FLG_SILENT 0x00004 /* Silent mode */
75 #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
76 #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
77 #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
78 #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
81 extern gd_t
*global_data
;
82 #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data
84 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("d7")
87 #endif /* __ASM_GBL_DATA_H */