1744d9859SSimon Glass /* 2744d9859SSimon Glass * Copyright (c) 2011 The Chromium OS Authors. 3744d9859SSimon Glass * 4744d9859SSimon Glass * (C) Copyright 2002-2010 5744d9859SSimon Glass * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 6744d9859SSimon Glass * 7744d9859SSimon Glass * See file CREDITS for list of people who contributed to this 8744d9859SSimon Glass * project. 9744d9859SSimon Glass * 10744d9859SSimon Glass * This program is free software; you can redistribute it and/or 11744d9859SSimon Glass * modify it under the terms of the GNU General Public License as 12744d9859SSimon Glass * published by the Free Software Foundation; either version 2 of 13744d9859SSimon Glass * the License, or (at your option) any later version. 14744d9859SSimon Glass * 15744d9859SSimon Glass * This program is distributed in the hope that it will be useful, 16744d9859SSimon Glass * but WITHOUT ANY WARRANTY; without even the implied warranty of 17744d9859SSimon Glass * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18744d9859SSimon Glass * GNU General Public License for more details. 19744d9859SSimon Glass * 20744d9859SSimon Glass * You should have received a copy of the GNU General Public License 21744d9859SSimon Glass * along with this program; if not, write to the Free Software 22744d9859SSimon Glass * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23744d9859SSimon Glass * MA 02111-1307 USA 24744d9859SSimon Glass */ 25744d9859SSimon Glass 26744d9859SSimon Glass #ifndef __ASM_GBL_DATA_H 27744d9859SSimon Glass #define __ASM_GBL_DATA_H 28744d9859SSimon Glass /* 29744d9859SSimon Glass * The following data structure is placed in some memory wich is 30744d9859SSimon Glass * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or 31744d9859SSimon Glass * some locked parts of the data cache) to allow for a minimum set of 32744d9859SSimon Glass * global variables during system initialization (until we have set 33744d9859SSimon Glass * up the memory controller so that we can use RAM). 34744d9859SSimon Glass * 35744d9859SSimon Glass * Keep it *SMALL* and remember to set GENERATED_GBL_DATA_SIZE > sizeof(gd_t) 36744d9859SSimon Glass */ 37744d9859SSimon Glass 38744d9859SSimon Glass typedef struct global_data { 39744d9859SSimon Glass bd_t *bd; 40744d9859SSimon Glass unsigned long flags; 41744d9859SSimon Glass unsigned long baudrate; 42744d9859SSimon Glass unsigned long have_console; /* serial_init() was called */ 43744d9859SSimon Glass unsigned long env_addr; /* Address of Environment struct */ 44744d9859SSimon Glass unsigned long env_valid; /* Checksum of Environment valid? */ 45744d9859SSimon Glass unsigned long fb_base; /* base address of frame buffer */ 46744d9859SSimon Glass u8 *ram_buf; /* emulated RAM buffer */ 47744d9859SSimon Glass phys_size_t ram_size; /* RAM size */ 48*f7b2af0aSSimon Glass const void *fdt_blob; /* Our device tree, NULL if none */ 49744d9859SSimon Glass void **jt; /* jump table */ 50744d9859SSimon Glass char env_buf[32]; /* buffer for getenv() before reloc. */ 51744d9859SSimon Glass } gd_t; 52744d9859SSimon Glass 53744d9859SSimon Glass /* 54744d9859SSimon Glass * Global Data Flags 55744d9859SSimon Glass */ 56744d9859SSimon Glass #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ 57744d9859SSimon Glass #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ 58744d9859SSimon Glass #define GD_FLG_SILENT 0x00004 /* Silent mode */ 59744d9859SSimon Glass #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ 60744d9859SSimon Glass #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ 61744d9859SSimon Glass #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ 62744d9859SSimon Glass #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ 63744d9859SSimon Glass #define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */ 64744d9859SSimon Glass 65744d9859SSimon Glass #define DECLARE_GLOBAL_DATA_PTR extern gd_t *gd 66744d9859SSimon Glass 67744d9859SSimon Glass #endif /* __ASM_GBL_DATA_H */ 68