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/*
* makeflash.h - Include file for generating a FlashCard boot image file
*
* Copyright (C) 1997,1998 Gero Kuhlmann <gero@gkminix.han.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _MAKEFLASH_H_
#define _MAKEFLASH_H_
/*
* Everything in this file has to be in packed structures.
*/
#ifdef USE_PRAGMA
#pragma pack(1)
#endif
#ifdef USE_PRAGMA_ALIGN
#pragma options align=packed
#endif
/*
* Size of I/O buffers
*/
#define SECTSIZE 512
/*
* The bootrom loads the load header to 0x10000, the FlashCard programmer
* to 0x10400, and the boot rom image at 0x30000.
*/
#define HEADERSEG 0x1000 /* segment for primary load header */
#define HEADERLSIZE 512L /* maximum load size of load header */
#define HEADERMSIZE 512L /* maximum memory size of load header */
#define PROGRAMSEG 0x1040 /* segment for FlashCard programmer */
#define PROGRAMLSIZE 64512L /* maximum load size of programer */
#define PROGRAMMSIZE 64512L /* maximum memory size of programmer */
#define ROMIMAGESEG 0x3000 /* segment for boot rom image */
/*
* The boot image has the following header in it's first sector
*/
struct load_header {
struct i_long magic PACKED; /* magic number */
__u8 hlength PACKED; /* length of header */
__u8 hflags1 PACKED; /* header flags */
__u8 hflags2 PACKED;
__u8 hflags3 PACKED;
struct i_addr locn PACKED; /* location of this header */
struct i_addr execute PACKED; /* execution address */
__u8 dummy[494]; /* up to full sector */
__u16 bootsig PACKED; /* boot signature */
};
#define HEADER_MAGIC 0x1B031336 /* Magic no for load header */
#define BOOT_SIGNATURE 0xaa55 /* Boot signature */
struct load_record {
__u8 rlength PACKED; /* length of record */
__u8 rtag1 PACKED; /* record tags */
__u8 rtag2 PACKED;
__u8 rflags PACKED; /* record flags */
struct i_long address PACKED; /* abs addr for part in mem */
struct i_long ilength PACKED; /* len of part in boot image */
struct i_long mlength PACKED; /* memory needed for part */
};
#define FLAG_B0 1
#define FLAG_B1 2
#define FLAG_EOF 4
/*
* Number of each load record.
*/
#define PROGRAMNUM 0 /* FlashCard programmer */
#define ROMIMAGENUM 1 /* boot rom image */
#define NUM_RECORDS 2
#define VENDOR_ID "GK-makerom" /* Vendor ID */
#define VENDOR_OFF 16 /* Offset for vendor tags */
/*
* Turnoff structure packing and return to normal data alignment.
*/
#ifdef USE_PRAGMA
#pragma pack()
#endif
#ifdef USE_PRAGMA_ALIGN
#pragma options align=reset
#endif
/*
* Data area which holds the FlashCard programming loader
*/
extern unsigned char flash_data[];
extern unsigned int flash_data_size;
#endif
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