[people/ms/u-boot.git] / include / asm-mips / global_data.h

/*
 * (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

#include <asm/regdef.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 CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
 */

typedef	struct	global_data {
	bd_t		*bd;
	unsigned long	flags;
	unsigned long	baudrate;
	unsigned long	have_console;	/* serial_init() was called */
	phys_size_t	ram_size;	/* RAM size */
	unsigned long	reloc_off;	/* Relocation Offset */
	unsigned long	env_addr;	/* Address  of Environment struct */
	unsigned long	env_valid;	/* Checksum of Environment valid? */
	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 Buf has been initialized	 */
#define GD_FLG_DISABLE_CONSOLE	0x00040		/* Disable console (in & out)	 */

#define DECLARE_GLOBAL_DATA_PTR     register volatile gd_t *gd asm ("k0")

#endif /* __ASM_GBL_DATA_H */
Commit	Line	Data
6069ff26 WD	1	/*
	2	* (C) Copyright 2002-2003
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#ifndef __ASM_GBL_DATA_H
	25	#define __ASM_GBL_DATA_H
	26
	27	#include <asm/regdef.h>
	28
	29	/*
	30	* The following data structure is placed in some memory wich is
	31	* available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
	32	* some locked parts of the data cache) to allow for a minimum set of
	33	* global variables during system initialization (until we have set
	34	* up the memory controller so that we can use RAM).
	35	*
6d0f6bcf	36	* Keep it SMALL and remember to set CONFIG_SYS_GBL_DATA_SIZE > sizeof(gd_t)
6069ff26 WD	37	*/
	38
	39	typedef struct global_data {
	40	bd_t *bd;
	41	unsigned long flags;
	42	unsigned long baudrate;
	43	unsigned long have_console; /* serial_init() was called */
b57ca3e1	44	phys_size_t ram_size; /* RAM size */
6069ff26 WD	45	unsigned long reloc_off; /* Relocation Offset */
	46	unsigned long env_addr; /* Address of Environment struct */
	47	unsigned long env_valid; /* Checksum of Environment valid? */
27b207fd	48	void *jt; / jump table */
6069ff26 WD	49	} gd_t;
	50
	51	/*
	52	* Global Data Flags
	53	*/
	54	#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
	55	#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
f72da340	56	#define GD_FLG_SILENT 0x00004 /* Silent mode */
b428f6a8	57	#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
28a38506	58	#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
0e15ddd1	59	#define GD_FLG_LOGINIT 0x00020 /* Log Buf has been initialized */
f5c3ba79	60	#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
6069ff26	61
27b207fd	62	#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("k0")
6069ff26 WD	63
6069ff26 WD	64	#endif /* __ASM_GBL_DATA_H */