1819833afSPeter Tyser /* 2819833afSPeter Tyser * (C) Copyright 2004 Atmark Techno, Inc. 3819833afSPeter Tyser * 4819833afSPeter Tyser * Yasushi SHOJI <yashi@atmark-techno.com> 5819833afSPeter Tyser * 6819833afSPeter Tyser * See file CREDITS for list of people who contributed to this 7819833afSPeter Tyser * project. 8819833afSPeter Tyser * 9819833afSPeter Tyser * This program is free software; you can redistribute it and/or 10819833afSPeter Tyser * modify it under the terms of the GNU General Public License as 11819833afSPeter Tyser * published by the Free Software Foundation; either version 2 of 12819833afSPeter Tyser * the License, or (at your option) any later version. 13819833afSPeter Tyser * 14819833afSPeter Tyser * This program is distributed in the hope that it will be useful, 15819833afSPeter Tyser * but WITHOUT ANY WARRANTY; without even the implied warranty of 16819833afSPeter Tyser * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17819833afSPeter Tyser * GNU General Public License for more details. 18819833afSPeter Tyser * 19819833afSPeter Tyser * You should have received a copy of the GNU General Public License 20819833afSPeter Tyser * along with this program; if not, write to the Free Software 21819833afSPeter Tyser * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22819833afSPeter Tyser * MA 02111-1307 USA 23819833afSPeter Tyser */ 24819833afSPeter Tyser 25819833afSPeter Tyser #ifndef __ASM_GBL_DATA_H 26819833afSPeter Tyser #define __ASM_GBL_DATA_H 27819833afSPeter Tyser /* 28819833afSPeter Tyser * The following data structure is placed in some memory wich is 29819833afSPeter Tyser * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 30819833afSPeter Tyser * some locked parts of the data cache) to allow for a minimum set of 31819833afSPeter Tyser * global variables during system initialization (until we have set 32819833afSPeter Tyser * up the memory controller so that we can use RAM). 33819833afSPeter Tyser * 34*25ddd1fbSWolfgang Denk * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) 35819833afSPeter Tyser */ 36819833afSPeter Tyser 37819833afSPeter Tyser typedef struct global_data { 38819833afSPeter Tyser bd_t *bd; 39819833afSPeter Tyser unsigned long flags; 40819833afSPeter Tyser unsigned long baudrate; 41819833afSPeter Tyser unsigned long have_console; /* serial_init() was called */ 42819833afSPeter Tyser unsigned long env_addr; /* Address of Environment struct */ 43819833afSPeter Tyser unsigned long env_valid; /* Checksum of Environment valid? */ 44819833afSPeter Tyser unsigned long fb_base; /* base address of frame buffer */ 45819833afSPeter Tyser void **jt; /* jump table */ 4691a76751SWolfgang Denk char env_buf[32]; /* buffer for getenv() before reloc. */ 47819833afSPeter Tyser } gd_t; 48819833afSPeter Tyser 49819833afSPeter Tyser /* 50819833afSPeter Tyser * Global Data Flags 51819833afSPeter Tyser */ 52819833afSPeter Tyser #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 53819833afSPeter Tyser #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 54819833afSPeter Tyser #define GD_FLG_SILENT 0x00004 /* Silent mode */ 55819833afSPeter Tyser #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 56819833afSPeter Tyser #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 57819833afSPeter Tyser #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ 58819833afSPeter Tyser #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 59ea882bafSWolfgang Denk #define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */ 60819833afSPeter Tyser 61819833afSPeter Tyser #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r31") 62819833afSPeter Tyser 63819833afSPeter Tyser #endif /* __ASM_GBL_DATA_H */ 64