projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 0157cedb WD |
1 | /* |
| 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 | ||
| 36 | typedef struct global_data { | |
| 37 | bd_t *bd; | |
| 38 | unsigned long flags; | |
| 39 | unsigned long baudrate; | |
| 40 | unsigned long have_console; /* serial_init() was called */ | |
| 41 | unsigned long reloc_off; /* Relocation Offset */ | |
| 42 | unsigned long env_addr; /* Address of Environment struct */ | |
| 43 | unsigned long env_valid; /* Checksum of Environment valid? */ | |
| 0157cedb | 44 | unsigned long fb_base; /* base address of frame buffer */ |
| 71f95118 | 45 | #ifdef CONFIG_VFD |
| 6069ff26 | 46 | unsigned char vfd_type; /* display type */ |
| 0157cedb WD |
47 | #endif |
| 48 | #if 0 | |
| 49 | unsigned long cpu_clk; /* CPU clock in Hz! */ | |
| 50 | unsigned long bus_clk; | |
| 51 | unsigned long ram_size; /* RAM size */ | |
| 52 | unsigned long reset_status; /* reset status register at boot */ | |
| 53 | #endif | |
| 54 | } gd_t; | |
| 55 | ||
| 56 | /* | |
| 57 | * Global Data Flags | |
| 58 | */ | |
| 59 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ | |
| 60 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ | |
| 61 | ||
| 62 | #define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm ("r8") | |
| 63 | ||
| 64 | #endif /* __ASM_GBL_DATA_H */ |