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 /* Architecture-specific global data */
28 struct arch_global_data {
30 unsigned long i2c1_clk;
31 unsigned long i2c2_clk;
33 #ifdef CONFIG_EXTRA_CLOCK
34 unsigned long inp_clk;
35 unsigned long vco_clk;
36 unsigned long flb_clk;
41 * The following data structure is placed in some memory wich is
42 * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
43 * some locked parts of the data cache) to allow for a minimum set of
44 * global variables during system initialization (until we have set
45 * up the memory controller so that we can use RAM).
48 typedef struct global_data {
51 unsigned int baudrate;
52 unsigned long cpu_clk; /* CPU clock in Hz! */
53 unsigned long bus_clk;
55 unsigned long pci_clk;
57 phys_size_t ram_size; /* RAM size */
58 unsigned long reloc_off; /* Relocation Offset */
59 unsigned long reset_status; /* reset status register at boot */
60 unsigned long env_addr; /* Address of Environment struct */
61 unsigned long env_valid; /* Checksum of Environment valid? */
62 unsigned long have_console; /* serial_init() was called */
63 #ifdef CONFIG_PRE_CONSOLE_BUFFER
64 unsigned long precon_buf_idx; /* Pre-Console buffer index */
66 #if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
67 unsigned long fb_base; /* Base addr of framebuffer memory */
69 #ifdef CONFIG_BOARD_TYPES
70 unsigned long board_type;
72 void **jt; /* Standalone app jump table */
73 char env_buf[32]; /* buffer for getenv() before reloc. */
74 struct arch_global_data arch; /* architecture-specific data */
77 #include <asm-generic/global_data_flags.h>
80 extern gd_t *global_data;
81 #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data
83 #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("d7")
86 #endif /* __ASM_GBL_DATA_H */