u-boot/arch/xtensa/include/asm/bootparam.h
Chris Zankel c978b52410 xtensa: add support for the xtensa processor architecture [2/2]
The Xtensa processor architecture is a configurable, extensible,
and synthesizable 32-bit RISC processor core provided by Tensilica, inc.

This is the second part of the basic architecture port, adding the
'arch/xtensa' directory and a readme file.

Signed-off-by: Chris Zankel <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-08-15 18:46:38 -04:00

54 lines
1.3 KiB
C

/*
* Definition of the Linux/Xtensa boot parameter structure
*
* Copyright (C) 2001 - 2009 Tensilica Inc.
*
* (Concept borrowed from the 68K port)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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_BAUDRATE 0x1004 /* baud rate of current console */
#define BP_TAG_SERIAL_PORT 0x1005 /* serial device of current console */
#define BP_TAG_FDT 0x1006 /* flat device tree */
#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 */
struct bp_tag {
unsigned short id; /* tag id */
unsigned short size; /* size of this record excluding the structure*/
unsigned long data[0]; /* data */
};
#define bp_tag_next(tag) \
((struct bp_tag *)((unsigned long)((tag) + 1) + (tag)->size))
struct meminfo {
unsigned long type;
unsigned long start;
unsigned long end;
};
#define MEMORY_TYPE_CONVENTIONAL 0x1000
#define MEMORY_TYPE_NONE 0x2000
struct sysmem_info {
int nr_banks;
struct meminfo bank[0];
};
#endif
#endif