mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
9a8fd55899
The attached patches provides part 6 of an architecture implementation for the Tensilica Xtensa CPU series. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
/*
|
|
* include/asm-xtensa/bootparam.h
|
|
*
|
|
* Definition of the Linux/Xtensa boot parameter structure
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2001 - 2005 Tensilica Inc.
|
|
*
|
|
* (Concept borrowed from the 68K port)
|
|
*/
|
|
|
|
#ifndef _XTENSA_BOOTPARAM_H
|
|
#define _XTENSA_BOOTPARAM_H
|
|
|
|
#define BP_VERSION 0x0001
|
|
|
|
#define BP_TAG_COMMAND_LINE 0x1001 /* command line (0-terminated string)*/
|
|
#define BP_TAG_INITRD 0x1002 /* ramdisk addr and size (bp_meminfo) */
|
|
#define BP_TAG_MEMORY 0x1003 /* memory addr and size (bp_meminfo) */
|
|
#define BP_TAG_SERIAL_BAUSRATE 0x1004 /* baud rate of current console. */
|
|
#define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */
|
|
|
|
#define BP_TAG_FIRST 0x7B0B /* first tag with a version number */
|
|
#define BP_TAG_LAST 0x7E0B /* last tag */
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
/* All records are aligned to 4 bytes */
|
|
|
|
typedef struct bp_tag {
|
|
unsigned short id; /* tag id */
|
|
unsigned short size; /* size of this record excluding the structure*/
|
|
unsigned long data[0]; /* data */
|
|
} bp_tag_t;
|
|
|
|
typedef struct meminfo {
|
|
unsigned long type;
|
|
unsigned long start;
|
|
unsigned long end;
|
|
} meminfo_t;
|
|
|
|
#define SYSMEM_BANKS_MAX 5
|
|
|
|
#define MEMORY_TYPE_CONVENTIONAL 0x1000
|
|
#define MEMORY_TYPE_NONE 0x2000
|
|
|
|
typedef struct sysmem_info {
|
|
int nr_banks;
|
|
meminfo_t bank[SYSMEM_BANKS_MAX];
|
|
} sysmem_info_t;
|
|
|
|
extern sysmem_info_t sysmem;
|
|
|
|
#endif
|
|
#endif
|
|
|
|
|
|
|