2 * Copyright (C) 2004-2006 Atmel Corporation
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 #ifndef __ASM_GLOBAL_DATA_H__
23 #define __ASM_GLOBAL_DATA_H__
25 /* Architecture-specific global data */
26 struct arch_global_data {
30 * The following data structure is placed in some memory wich is
31 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
32 * some locked parts of the data cache) to allow for a minimum set of
33 * global variables during system initialization (until we have set
34 * up the memory controller so that we can use RAM).
37 typedef struct global_data {
40 unsigned int baudrate;
41 unsigned long stack_end; /* highest stack address */
42 unsigned long have_console; /* serial_init() was called */
43 #ifdef CONFIG_PRE_CONSOLE_BUFFER
44 unsigned long precon_buf_idx; /* Pre-Console buffer index */
46 unsigned long reloc_off; /* Relocation Offset */
47 unsigned long env_addr; /* Address of env struct */
48 unsigned long env_valid; /* Checksum of env valid? */
49 unsigned long cpu_hz; /* cpu core clock frequency */
50 #if defined(CONFIG_LCD)
51 void *fb_base; /* framebuffer address */
53 void **jt; /* jump table */
54 char env_buf[32]; /* buffer for getenv() before reloc. */
55 struct arch_global_data arch; /* architecture-specific data */
58 #include <asm-generic/global_data_flags.h>
60 #define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm("r5")
62 #endif /* __ASM_GLOBAL_DATA_H__ */