/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995, 1996, 2003 by Ralf Baechle
 * Copyright (C) 1995, 1996 Andreas Busse
 * Copyright (C) 1995, 1996 Stoned Elipot
 * Copyright (C) 1995, 1996 Paul M. Antoine.
 */
#ifndef _ASM_BOOTINFO_H
#define _ASM_BOOTINFO_H

#include <linux/types.h>
#include <asm/setup.h>

/*
 * The MACH_ IDs are sort of equivalent to PCI product IDs.  As such the
 * numbers do not necessarily reflect technical relations or similarities
 * between systems.
 */

/*
 * Valid machtype values for group unknown
 */
#define MACH_UNKNOWN		0	/* whatever...			*/
#define CL_SIZE			COMMAND_LINE_SIZE

extern char *system_type;
const char *get_system_type(void);

extern unsigned long mips_machtype;

#define BOOT_MEM_MAP_MAX	32
#define BOOT_MEM_RAM		1
#define BOOT_MEM_ROM_DATA	2
#define BOOT_MEM_RESERVED	3

/*
 * A memory map that's built upon what was determined
 * or specified on the command line.
 */
struct boot_mem_map {
	int nr_map;
	struct boot_mem_map_entry {
		phys_t addr;	/* start of memory segment */
		phys_t size;	/* size of memory segment */
		long type;		/* type of memory segment */
	} map[BOOT_MEM_MAP_MAX];
};

extern struct boot_mem_map boot_mem_map;

extern void add_memory_region(phys_t start, phys_t size, long type);

extern void bsp_init(void);
extern void bsp_free_prom_memory(void);

extern void free_init_pages(const char *what,
			    unsigned long begin, unsigned long end);

/*
 * Initial kernel command line, usually setup by bsp_init()
 */
extern char arcs_cmdline[CL_SIZE];

/*
 * Registers a0, a1, a3 and a4 as passed to the kernel entry by firmware
 */
extern unsigned long fw_arg0, fw_arg1, fw_arg2, fw_arg3;

/*
 * Platform memory detection hook called by setup_arch
 */
extern void bsp_setup(void);

#endif /* _ASM_BOOTINFO_H */