96 lines
2.4 KiB
C
96 lines
2.4 KiB
C
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/*
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* Copyright (C) 2009 Juergen Beisert, Pengutronix
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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*/
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/**
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* @file
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* @brief Adapt linker script content in accordance to Kconfig settings
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*/
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/**
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* Area in the MBR of the barebox basic boot code. This offset must be in
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* accordance to the 'indirect_sector_lba' label.
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*/
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#define PATCH_AREA 400
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/**
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* Offset where to store the boot drive number (BIOS number, 1 byte)
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*/
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#define PATCH_AREA_BOOT_DEV 16
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/**
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* Offset where to store information about the persistant environment storage
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* It points to an LBA number (8 bytes) and defines the first sector of this
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* storage on disk.
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*/
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#define PATCH_AREA_PERS_START 20
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/**
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* Offset where to store information about the persistant environment storage
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* It points to a short number (2 bytes) and defines the sector count of this
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* storage on disk.
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*/
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#define PATCH_AREA_PERS_SIZE 28
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/**
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* Offset where to store information about the persistant environment storage
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* drive number (BIOS number, 1 byte)
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*/
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#define PATCH_AREA_PERS_DRIVE 30
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/**
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* Mark the persistant environment as not used
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*/
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#define PATCH_AREA_PERS_SIZE_UNUSED 0x000
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/**
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* Mark a DAPS as unused/invalid
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*/
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#define MARK_DAPS_INVALID 0x0000
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/**
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* Offset of the partition table in an MBR
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*/
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#define OFFSET_OF_PARTITION_TABLE 446
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/**
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* Offset of the signature in an MBR
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*/
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#define OFFSET_OF_SIGNATURE 510
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/**
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* Area where to store indirect sector to loop through. Keep this value
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* in accordance to the 'indirect_area' label. Note: .
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*
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* @attention These addresses are real mode ones (seg:offset)
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*/
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#define INDIRECT_AREA 0x7A00
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#define INDIRECT_SEGMENT 0x0000
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/**
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* Area where to load sectors from disk to. They should start after the
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* MBR area and must be in accordance to the offset of the '.bootstrapping'
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* section in the linker file.
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*
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* @attention The address must be a multiple of 512.
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*/
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#define LOAD_AREA 0x7e00
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#define LOAD_SEGMENT 0x0000
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/**
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* Size of one sector.
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*/
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#define SECTOR_SIZE 512
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