blob: 9983f2c1b7ee905ad6e15770808d4cce1507cfb1 [file] [log] [blame]
* include/asm-xtensa/bootparam.h
* Definition of the Linux/Xtensa boot parameter structure
* 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) 2001 - 2005 Tensilica Inc.
* (Concept borrowed from the 68K port)
#define BP_VERSION 0x0001
#define BP_TAG_COMMAND_LINE 0x1001 /* command line (0-terminated string)*/
#define BP_TAG_INITRD 0x1002 /* ramdisk addr and size (bp_meminfo) */
#define BP_TAG_MEMORY 0x1003 /* memory addr and size (bp_meminfo) */
#define BP_TAG_SERIAL_BAUSRATE 0x1004 /* baud rate of current console. */
#define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */
#define BP_TAG_FIRST 0x7B0B /* first tag with a version number */
#define BP_TAG_LAST 0x7E0B /* last tag */
#ifndef __ASSEMBLY__
/* All records are aligned to 4 bytes */
typedef struct bp_tag {
unsigned short id; /* tag id */
unsigned short size; /* size of this record excluding the structure*/
unsigned long data[0]; /* data */
} bp_tag_t;
typedef struct meminfo {
unsigned long type;
unsigned long start;
unsigned long end;
} meminfo_t;
#define MEMORY_TYPE_NONE 0x2000
typedef struct sysmem_info {
int nr_banks;
meminfo_t bank[SYSMEM_BANKS_MAX];
} sysmem_info_t;
extern sysmem_info_t sysmem;