/*
* 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) 2012 MIPS Technologies, Inc.
*/
#ifndef __ASM_FW_H_
#define __ASM_FW_H_

#include <asm/bootinfo.h> /* For cleaner code... */

enum fw_memtypes {
fw_dontuse,
fw_code,
fw_free,
};

typedef struct {
unsigned long base; /* Within KSEG0 */
unsigned int size; /* bytes */
enum fw_memtypes type; /* fw_memtypes */
} fw_memblock_t;

/* Maximum number of memory block descriptors. */
#define FW_MAX_MEMBLOCKS 32

extern int fw_argc;
extern int *_fw_argv;
extern int *_fw_envp;

/*
* Most firmware like YAMON, PMON, etc. pass arguments and environment
* variables as 32-bit pointers. These take care of sign extension.
*/
#define fw_argv(index) ((char *)(long)_fw_argv[(index)])
#define fw_envp(index) ((char *)(long)_fw_envp[(index)])

extern void fw_init_cmdline(void);
extern char *fw_getcmdline(void);
extern fw_memblock_t *fw_getmdesc(void);
extern void fw_meminit(void);
extern char *fw_getenv(char *name);
extern unsigned long fw_getenvl(char *name);
extern void fw_init_early_console(char port);

#endif /* __ASM_FW_H_ */