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wdenk0157ced2002-10-21 17:04:47 +00001/*
2 * (C) Copyright 2002
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24#ifndef __ASM_GBL_DATA_H
25#define __ASM_GBL_DATA_H
26/*
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).
32 *
33 * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
34 */
35
36typedef struct global_data {
37 bd_t *bd;
38 unsigned long flags;
39 unsigned long baudrate;
40 unsigned long cpu_clk; /* CPU clock in Hz! */
41 unsigned long bus_clk;
42#if defined(CONFIG_8260)
43 /* There are many clocks on the MPC8260 - see page 9-5 */
44 unsigned long vco_out;
45 unsigned long cpm_clk;
46 unsigned long scc_clk;
47 unsigned long brg_clk;
48#endif
wdenk945af8d2003-07-16 21:53:01 +000049#if defined(CONFIG_MPC5XXX)
50 unsigned long ipb_clk;
51 unsigned long pci_clk;
52#endif
wdenk0157ced2002-10-21 17:04:47 +000053 unsigned long ram_size; /* RAM size */
54 unsigned long reloc_off; /* Relocation Offset */
55 unsigned long reset_status; /* reset status register at boot */
56 unsigned long env_addr; /* Address of Environment struct */
57 unsigned long env_valid; /* Checksum of Environment valid? */
58 unsigned long have_console; /* serial_init() was called */
59#if defined(CFG_ALLOC_DPRAM) || defined(CONFIG_8260)
60 unsigned int dp_alloc_base;
61 unsigned int dp_alloc_top;
62#endif
wdenk12f34242003-09-02 22:48:03 +000063#if defined(CFG_GT_6426x)
wdenk0157ced2002-10-21 17:04:47 +000064 unsigned int mirror_hack[16];
65#endif
wdenk03329902003-06-20 22:36:30 +000066#if defined(CONFIG_SANDPOINT) || \
67 defined(CONFIG_MUSENKI) || \
68 defined(CONFIG_A3000)
wdenk0157ced2002-10-21 17:04:47 +000069 void * console_addr;
70#endif
wdenkc7de8292002-11-19 11:04:11 +000071#ifdef CONFIG_AMIGAONEG3SE
72 unsigned long relocaddr; /* Start address of U-Boot in RAM */
73#endif
wdenk0157ced2002-10-21 17:04:47 +000074#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
75 unsigned long fb_base; /* Base address of framebuffer memory */
76#endif
wdenk667122a2003-07-15 21:50:34 +000077#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
wdenk228f29a2002-12-08 09:53:23 +000078 unsigned long post_log_word; /* Record POST activities */
wdenk4532cb62003-04-27 22:52:51 +000079 unsigned long post_init_f_time; /* When post_init_f started */
wdenk228f29a2002-12-08 09:53:23 +000080#endif
wdenk0157ced2002-10-21 17:04:47 +000081#ifdef CONFIG_BOARD_TYPES
82 unsigned long board_type;
83#endif
wdenk4532cb62003-04-27 22:52:51 +000084#ifdef CONFIG_MODEM_SUPPORT
85 unsigned long do_mdm_init;
86 unsigned long be_quiet;
87#endif
88#ifdef CONFIG_LWMON
89 unsigned long kbd_status;
wdenk8bde7f72003-06-27 21:31:46 +000090#endif
wdenk27b207f2003-07-24 23:38:38 +000091 void **jt; /* jump table */
wdenk0157ced2002-10-21 17:04:47 +000092} gd_t;
93
94/*
95 * Global Data Flags
96 */
97#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
98#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
99
100#if 1
wdenk27b207f2003-07-24 23:38:38 +0000101#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r29")
wdenk0157ced2002-10-21 17:04:47 +0000102#else /* We could use plain global data, but the resulting code is bigger */
103#define XTRN_DECLARE_GLOBAL_DATA_PTR extern
104#define DECLARE_GLOBAL_DATA_PTR XTRN_DECLARE_GLOBAL_DATA_PTR \
105 gd_t *gd
106#endif
107
108#endif /* __ASM_GBL_DATA_H */