projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 7b64fef3 WD |
1 | /* |
| 2 | * Copyright (C) 2004-2006 Atmel Corporation | |
| 3 | * | |
| 4 | * See file CREDITS for list of people who contributed to this | |
| 5 | * project. | |
| 6 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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, | |
| 20 | * MA 02111-1307 USA | |
| 21 | */ | |
| 22 | #ifndef __ASM_GLOBAL_DATA_H__ | |
| 23 | #define __ASM_GLOBAL_DATA_H__ | |
| 24 | ||
| 25 | /* | |
| 26 | * The following data structure is placed in some memory wich is | |
| 27 | * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or | |
| 28 | * some locked parts of the data cache) to allow for a minimum set of | |
| 29 | * global variables during system initialization (until we have set | |
| 30 | * up the memory controller so that we can use RAM). | |
| 31 | * | |
| 25ddd1fb | 32 | * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) |
| 7b64fef3 WD |
33 | */ |
| 34 | ||
| 35 | typedef struct global_data { | |
| 36 | bd_t *bd; | |
| 37 | unsigned long flags; | |
| 7b64fef3 | 38 | unsigned long baudrate; |
| 1f4f2121 | 39 | unsigned long stack_end; /* highest stack address */ |
| 7b64fef3 WD |
40 | unsigned long have_console; /* serial_init() was called */ |
| 41 | unsigned long reloc_off; /* Relocation Offset */ | |
| 42 | unsigned long env_addr; /* Address of env struct */ | |
| 43 | unsigned long env_valid; /* Checksum of env valid? */ | |
| 44 | unsigned long cpu_hz; /* cpu core clock frequency */ | |
| 716ece1d MJ |
45 | #if defined(CONFIG_LCD) |
| 46 | void *fb_base; /* framebuffer address */ | |
| 47 | #endif | |
| 7b64fef3 | 48 | void **jt; /* jump table */ |
| 91a76751 | 49 | char env_buf[32]; /* buffer for getenv() before reloc. */ |
| 7b64fef3 WD |
50 | } gd_t; |
| 51 | ||
| 52 | /* | |
| 53 | * Global Data Flags | |
| 54 | */ | |
| ea882baf WD |
55 | #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
| 56 | #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ | |
| 57 | #define GD_FLG_SILENT 0x00004 /* Silent mode */ | |
| 58 | #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ | |
| 59 | #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ | |
| 60 | #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ | |
| 61 | #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ | |
| 62 | #define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */ | |
| 7b64fef3 WD |
63 | |
| 64 | #define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm("r5") | |
| 65 | ||
| 66 | #endif /* __ASM_GLOBAL_DATA_H__ */ |