1/*
2 * include/asm-xtensa/bootparam.h
3 *
4 * Definition of the Linux/Xtensa boot parameter structure
5 *
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License.  See the file "COPYING" in the main directory of this archive
8 * for more details.
9 *
10 * Copyright (C) 2001 - 2005  Tensilica Inc.
11 *
12 * (Concept borrowed from the 68K port)
13 */
14
15#ifndef _XTENSA_BOOTPARAM_H
16#define _XTENSA_BOOTPARAM_H
17
18#define BP_VERSION 0x0001
19
20#define BP_TAG_COMMAND_LINE	0x1001	/* command line (0-terminated string)*/
21#define BP_TAG_INITRD		0x1002	/* ramdisk addr and size (bp_meminfo) */
22#define BP_TAG_MEMORY		0x1003	/* memory addr and size (bp_meminfo) */
23#define BP_TAG_SERIAL_BAUDRATE	0x1004	/* baud rate of current console. */
24#define BP_TAG_SERIAL_PORT	0x1005	/* serial device of current console */
25#define BP_TAG_FDT		0x1006	/* flat device tree addr */
26
27#define BP_TAG_FIRST		0x7B0B  /* first tag with a version number */
28#define BP_TAG_LAST 		0x7E0B	/* last tag */
29
30#ifndef __ASSEMBLY__
31
32/* All records are aligned to 4 bytes */
33
34typedef struct bp_tag {
35	unsigned short id;	/* tag id */
36	unsigned short size;	/* size of this record excluding the structure*/
37	unsigned long data[0];	/* data */
38} bp_tag_t;
39
40struct bp_meminfo {
41	unsigned long type;
42	unsigned long start;
43	unsigned long end;
44};
45
46#define MEMORY_TYPE_CONVENTIONAL	0x1000
47#define MEMORY_TYPE_NONE		0x2000
48
49#endif
50#endif
51