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 enum fw_memtypes { 14 fw_dontuse, 15 fw_code, 16 fw_free, 17 }; 18 19 typedef struct { 20 unsigned long base; /* Within KSEG0 */ 21 unsigned int size; /* bytes */ 22 enum fw_memtypes type; /* fw_memtypes */ 23 } fw_memblock_t; 24 25 /* Maximum number of memory block descriptors. */ 26 #define FW_MAX_MEMBLOCKS 32 27 28 extern int fw_argc; 29 extern int *_fw_argv; 30 extern int *_fw_envp; 31 32 /* 33 * Most firmware like YAMON, PMON, etc. pass arguments and environment 34 * variables as 32-bit pointers. These take care of sign extension. 35 */ 36 #define fw_argv(index) ((char *)(long)_fw_argv[(index)]) 37 #define fw_envp(index) ((char *)(long)_fw_envp[(index)]) 38 39 extern void fw_init_cmdline(void); 40 extern char *fw_getcmdline(void); 41 extern fw_memblock_t *fw_getmdesc(int); 42 extern void fw_meminit(void); 43 extern char *fw_getenv(char *name); 44 extern unsigned long fw_getenvl(char *name); 45 extern void fw_init_early_console(char port); 46 47 #endif /* __ASM_FW_H_ */ 48