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Diffstat (limited to 'arch/xtensa/include/asm/bootparam.h')
-rw-r--r-- | arch/xtensa/include/asm/bootparam.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/bootparam.h b/arch/xtensa/include/asm/bootparam.h new file mode 100644 index 000000000000..9983f2c1b7ee --- /dev/null +++ b/arch/xtensa/include/asm/bootparam.h | |||
@@ -0,0 +1,61 @@ | |||
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 | |||