2 * (C) Copyright 2002-2010
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 #include <asm/regdef.h>
29 /* Architecture-specific global data */
30 struct arch_global_data {
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).
41 typedef struct global_data {
45 /* There are other clocks in the jz4740 */
46 unsigned long cpu_clk; /* CPU core clock */
47 unsigned long sys_clk; /* System bus clock */
48 unsigned long per_clk; /* Peripheral bus clock */
49 unsigned long mem_clk; /* Memory bus clock */
50 unsigned long dev_clk; /* Device clock */
51 /* "static data" needed by most of timer.c */
53 unsigned long lastinc;
55 unsigned int baudrate;
56 unsigned long have_console; /* serial_init() was called */
57 #ifdef CONFIG_PRE_CONSOLE_BUFFER
58 unsigned long precon_buf_idx; /* Pre-Console buffer index */
60 phys_size_t ram_size; /* RAM size */
61 unsigned long reloc_off; /* Relocation Offset */
62 unsigned long env_addr; /* Address of Environment struct */
63 unsigned long env_valid; /* Checksum of Environment valid? */
64 void **jt; /* jump table */
65 char env_buf[32]; /* buffer for getenv() before reloc. */
66 struct arch_global_data arch; /* architecture-specific data */
69 #include <asm-generic/global_data_flags.h>
71 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0")
73 #endif /* __ASM_GBL_DATA_H */