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