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Diffstat (limited to 'include/asm-m68k/global_data.h')
| -rw-r--r-- | include/asm-m68k/global_data.h | 62 | 
1 files changed, 62 insertions, 0 deletions
| diff --git a/include/asm-m68k/global_data.h b/include/asm-m68k/global_data.h new file mode 100644 index 000000000..89bc0ad3f --- /dev/null +++ b/include/asm-m68k/global_data.h @@ -0,0 +1,62 @@ +/* + * (C) Copyright 2002-2003 + * 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	global_data { +	bd_t		*bd; +	unsigned long	flags; +	unsigned long	baudrate; +	unsigned long	cpu_clk;	/* CPU clock in Hz!		*/ +	unsigned long	bus_clk; +	unsigned long	ram_size;	/* RAM size */ +	unsigned long	reloc_off;	/* Relocation Offset */ +	unsigned long	reset_status;	/* reset status register at boot	*/ +	unsigned long	env_addr;	/* Address  of Environment struct	*/ +	unsigned long	env_valid;	/* Checksum of Environment valid?	*/ +	unsigned long	have_console;	/* serial_init() was called		*/ +#ifdef CONFIG_BOARD_TYPES +	unsigned long	board_type; +#endif +} gd_t; + +/* + * Global Data Flags + */ +#define	GD_FLG_RELOC	0x00001		/* Code was relocated to RAM		*/ +#define	GD_FLG_DEVINIT	0x00002		/* Devices have been initialized	*/ + +extern gd_t *global_data; +#define DECLARE_GLOBAL_DATA_PTR     gd_t *gd = global_data + +#endif /* __ASM_GBL_DATA_H */ |