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9a8fd558 CZ |
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) */ | |
661b40b0 | 23 | #define BP_TAG_SERIAL_BAUDRATE 0x1004 /* baud rate of current console. */ |
9a8fd558 | 24 | #define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */ |
da844a81 | 25 | #define BP_TAG_FDT 0x1006 /* flat device tree addr */ |
9a8fd558 CZ |
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 | ||
34 | typedef struct bp_tag { | |
c4c4594b CZ |
35 | unsigned short id; /* tag id */ |
36 | unsigned short size; /* size of this record excluding the structure*/ | |
37 | unsigned long data[0]; /* data */ | |
9a8fd558 CZ |
38 | } bp_tag_t; |
39 | ||
40 | typedef struct meminfo { | |
c4c4594b CZ |
41 | unsigned long type; |
42 | unsigned long start; | |
43 | unsigned long end; | |
9a8fd558 CZ |
44 | } meminfo_t; |
45 | ||
46 | #define SYSMEM_BANKS_MAX 5 | |
47 | ||
48 | #define MEMORY_TYPE_CONVENTIONAL 0x1000 | |
49 | #define MEMORY_TYPE_NONE 0x2000 | |
50 | ||
51 | typedef struct sysmem_info { | |
c4c4594b CZ |
52 | int nr_banks; |
53 | meminfo_t bank[SYSMEM_BANKS_MAX]; | |
9a8fd558 CZ |
54 | } sysmem_info_t; |
55 | ||
56 | extern sysmem_info_t sysmem; | |
57 | ||
58 | #endif | |
59 | #endif |