80d19ff404
always use 'M. Warner Losh' for consistency. 'All Rights Reserved.' was prescribed by the Buenos Aires Copyright Convention of 1910, but has been mostly dead since the early 1990's and completely meaningless since 2000 when Nicaragua ratified the Berne convention. Some files not done due to ambiguity of various types.
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2012 M. Warner Losh.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __MACHINE_ATAGS_H__
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#define __MACHINE_ATAGS_H__
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/*
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* Linux boot ABI compatable ATAG definitions. All these structures
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* assume tight packing, but since they are all uint32_t's, I've not
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* bothered to do the usual alignment dance.
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*/
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#define LBABI_MAX_COMMAND_LINE 1024
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struct arm_lbabi_header
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{
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uint32_t size; /* Size of this node, including header */
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uint32_t tag; /* Node type */
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};
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#define ATAG_NONE 0x00000000 /* End of atags list */
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#define ATAG_CORE 0x54410001 /* List must start with ATAG_CORE */
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#define ATAG_MEM 0x54410002 /* Multiple ATAG_MEM nodes possible */
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#define ATAG_VIDEOTEXT 0x54410003 /* Video parameters */
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#define ATAG_RAMDISK 0x54410004 /* Describes the ramdisk parameters */
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#define ATAG_INITRD 0x54410005 /* Deprecated ramdisk -- used va not pa */
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#define ATAG_INITRD2 0x54420005 /* compressed ramdisk image */
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#define ATAG_SERIAL 0x54410006 /* 64-bits of serial number */
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#define ATAG_REVISION 0x54410007 /* Board revision */
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#define ATAG_VIDEOLFB 0x54410008 /* vesafb framebuffer */
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#define ATAG_CMDLINE 0x54410009 /* Command line */
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/*
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* ATAG_CORE data
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*/
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struct arm_lbabi_core
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{
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uint32_t flags; /* bit 0 == read-only */
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uint32_t pagesize;
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uint32_t rootdev;
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};
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/*
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* ATAG_MEM data -- Can be more than one to describe different
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* banks.
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*/
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struct arm_lbabi_mem32
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{
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uint32_t size;
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uint32_t start; /* start of physical memory */
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};
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/*
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* ATAG_INITRD2 - Compressed ramdisk image details
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*/
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struct arm_lbabi_initrd
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{
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uint32_t start; /* pa of start */
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uint32_t size; /* How big the ram disk is */
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};
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/*
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* ATAG_SERIAL - serial number
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*/
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struct arm_lbabi_serial_number
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{
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uint32_t low;
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uint32_t high;
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};
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/*
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* ATAG_REVISION - board revision
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*/
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struct arm_lbabi_revision
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{
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uint32_t rev;
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};
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/*
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* ATAG_CMDLINE - Command line from uboot
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*/
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struct arm_lbabi_command_line
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{
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char command[1]; /* Minimum command length */
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};
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struct arm_lbabi_tag
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{
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struct arm_lbabi_header tag_hdr;
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union {
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struct arm_lbabi_core tag_core;
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struct arm_lbabi_mem32 tag_mem;
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struct arm_lbabi_initrd tag_initrd;
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struct arm_lbabi_serial_number tag_sn;
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struct arm_lbabi_revision tag_rev;
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struct arm_lbabi_command_line tag_cmd;
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} u;
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};
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#define ATAG_TAG(a) (a)->tag_hdr.tag
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#define ATAG_SIZE(a) ((a)->tag_hdr.size * sizeof(uint32_t))
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#define ATAG_NEXT(a) (struct arm_lbabi_tag *)((char *)(a) + ATAG_SIZE(a))
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#endif /* __MACHINE_ATAGS_H__ */
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