xref: /openbmc/linux/arch/mips/include/asm/fw/fw.h (revision 0f613bfa)
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 2012 MIPS Technologies, Inc.
7  */
8 #ifndef __ASM_FW_H_
9 #define __ASM_FW_H_
10 
11 #include <asm/bootinfo.h>	/* For cleaner code... */
12 
13 extern int fw_argc;
14 extern int *_fw_argv;
15 extern int *_fw_envp;
16 
17 /*
18  * Most firmware like YAMON, PMON, etc. pass arguments and environment
19  * variables as 32-bit pointers. These take care of sign extension.
20  */
21 #define fw_argv(index)		((char *)(long)_fw_argv[(index)])
22 #define fw_envp(index)		((char *)(long)_fw_envp[(index)])
23 
24 extern void fw_init_cmdline(void);
25 extern char *fw_getcmdline(void);
26 extern void fw_meminit(void);
27 extern char *fw_getenv(char *name);
28 extern unsigned long fw_getenvl(char *name);
29 extern void fw_init_early_console(void);
30 
31 #endif /* __ASM_FW_H_ */
32