| /* |
| * (C) Copyright 2002 |
| * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| * |
| * See file CREDITS for list of people who contributed to this |
| * project. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| * MA 02111-1307 USA |
| */ |
| |
| #ifndef __ASM_GBL_DATA_H |
| #define __ASM_GBL_DATA_H |
| /* |
| * The following data structure is placed in some memory wich is |
| * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or |
| * some locked parts of the data cache) to allow for a minimum set of |
| * global variables during system initialization (until we have set |
| * up the memory controller so that we can use RAM). |
| * |
| * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t) |
| */ |
| |
| typedef struct { |
| bd_t *bd; |
| unsigned long flags; |
| unsigned long baudrate; |
| unsigned long have_console; /* serial_init() was called */ |
| unsigned long reloc_off; /* Relocation Offset */ |
| unsigned long env_addr; /* Address of Environment struct */ |
| unsigned long env_valid; /* Checksum of Environment valid? */ |
| unsigned long cpu_clk; /* CPU clock in Hz! */ |
| unsigned long bus_clk; |
| unsigned long ram_size; /* RAM size */ |
| unsigned long reset_status; /* reset status register at boot */ |
| void **jt; /* jump table */ |
| } gd_t; |
| |
| /* |
| * Global Data Flags |
| */ |
| #define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ |
| #define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ |
| #define GD_FLG_SILENT 0x00004 /* Silent mode */ |
| #define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ |
| #define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ |
| #define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ |
| |
| extern gd_t *global_data; |
| |
| #define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data |
| |
| #endif /* __ASM_GBL_DATA_H */ |