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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) */ | |
23 | #define BP_TAG_SERIAL_BAUSRATE 0x1004 /* baud rate of current console. */ | |
24 | #define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */ | |
25 | ||
26 | #define BP_TAG_FIRST 0x7B0B /* first tag with a version number */ | |
27 | #define BP_TAG_LAST 0x7E0B /* last tag */ | |
28 | ||
29 | #ifndef __ASSEMBLY__ | |
30 | ||
31 | /* All records are aligned to 4 bytes */ | |
32 | ||
33 | typedef struct bp_tag { | |
34 | unsigned short id; /* tag id */ | |
35 | unsigned short size; /* size of this record excluding the structure*/ | |
36 | unsigned long data[0]; /* data */ | |
37 | } bp_tag_t; | |
38 | ||
39 | typedef struct meminfo { | |
40 | unsigned long type; | |
41 | unsigned long start; | |
42 | unsigned long end; | |
43 | } meminfo_t; | |
44 | ||
45 | #define SYSMEM_BANKS_MAX 5 | |
46 | ||
47 | #define MEMORY_TYPE_CONVENTIONAL 0x1000 | |
48 | #define MEMORY_TYPE_NONE 0x2000 | |
49 | ||
50 | typedef struct sysmem_info { | |
51 | int nr_banks; | |
52 | meminfo_t bank[SYSMEM_BANKS_MAX]; | |
53 | } sysmem_info_t; | |
54 | ||
55 | extern sysmem_info_t sysmem; | |
56 | ||
57 | #endif | |
58 | #endif | |
59 | ||
60 | ||
61 |