1*819833afSPeter Tyser /* 2*819833afSPeter Tyser * (C) Copyright 2002-2003 3*819833afSPeter Tyser * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4*819833afSPeter Tyser * 5*819833afSPeter Tyser * See file CREDITS for list of people who contributed to this 6*819833afSPeter Tyser * project. 7*819833afSPeter Tyser * 8*819833afSPeter Tyser * This program is free software; you can redistribute it and/or 9*819833afSPeter Tyser * modify it under the terms of the GNU General Public License as 10*819833afSPeter Tyser * published by the Free Software Foundation; either version 2 of 11*819833afSPeter Tyser * the License, or (at your option) any later version. 12*819833afSPeter Tyser * 13*819833afSPeter Tyser * This program is distributed in the hope that it will be useful, 14*819833afSPeter Tyser * but WITHOUT ANY WARRANTY; without even the implied warranty of 15*819833afSPeter Tyser * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16*819833afSPeter Tyser * GNU General Public License for more details. 17*819833afSPeter Tyser * 18*819833afSPeter Tyser * You should have received a copy of the GNU General Public License 19*819833afSPeter Tyser * along with this program; if not, write to the Free Software 20*819833afSPeter Tyser * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21*819833afSPeter Tyser * MA 02111-1307 USA 22*819833afSPeter Tyser */ 23*819833afSPeter Tyser 24*819833afSPeter Tyser #ifndef __ASM_GBL_DATA_H 25*819833afSPeter Tyser #define __ASM_GBL_DATA_H 26*819833afSPeter Tyser 27*819833afSPeter Tyser #include <asm/regdef.h> 28*819833afSPeter Tyser 29*819833afSPeter Tyser /* 30*819833afSPeter Tyser * The following data structure is placed in some memory wich is 31*819833afSPeter Tyser * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 32*819833afSPeter Tyser * some locked parts of the data cache) to allow for a minimum set of 33*819833afSPeter Tyser * global variables during system initialization (until we have set 34*819833afSPeter Tyser * up the memory controller so that we can use RAM). 35*819833afSPeter Tyser * 36*819833afSPeter Tyser * Keep it *SMALL* and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t) 37*819833afSPeter Tyser */ 38*819833afSPeter Tyser 39*819833afSPeter Tyser typedef struct global_data { 40*819833afSPeter Tyser bd_t *bd; 41*819833afSPeter Tyser unsigned long flags; 42*819833afSPeter Tyser unsigned long baudrate; 43*819833afSPeter Tyser unsigned long have_console; /* serial_init() was called */ 44*819833afSPeter Tyser phys_size_t ram_size; /* RAM size */ 45*819833afSPeter Tyser unsigned long reloc_off; /* Relocation Offset */ 46*819833afSPeter Tyser unsigned long env_addr; /* Address of Environment struct */ 47*819833afSPeter Tyser unsigned long env_valid; /* Checksum of Environment valid? */ 48*819833afSPeter Tyser void **jt; /* jump table */ 49*819833afSPeter Tyser } gd_t; 50*819833afSPeter Tyser 51*819833afSPeter Tyser /* 52*819833afSPeter Tyser * Global Data Flags 53*819833afSPeter Tyser */ 54*819833afSPeter Tyser #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 55*819833afSPeter Tyser #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 56*819833afSPeter Tyser #define GD_FLG_SILENT 0x00004 /* Silent mode */ 57*819833afSPeter Tyser #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 58*819833afSPeter Tyser #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 59*819833afSPeter Tyser #define GD_FLG_LOGINIT 0x00020 /* Log Buf has been initialized */ 60*819833afSPeter Tyser #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 61*819833afSPeter Tyser 62*819833afSPeter Tyser #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0") 63*819833afSPeter Tyser 64*819833afSPeter Tyser #endif /* __ASM_GBL_DATA_H */ 65