73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* OpenBIOS - free your system!
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* ( firmware/flash device driver for Linux )
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*
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* programming.h - prototypes for flash device programming
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*
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* This program is part of a free implementation of the IEEE 1275-1994
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* Standard for Boot (Initialization Configuration) Firmware.
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*
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* Copyright (C) 1998-2004 Stefan Reinauer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*
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*/
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/* Addresses */
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#define ADDR_MANUFACTURER 0x0000
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#define ADDR_DEVICE_ID 0x0001
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#define ADDR_SECTOR_LOCK 0x0002
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#define ADDR_HANDSHAKE 0x0003
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#define ADDR_UNLOCK_1 0x5555
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#define ADDR_UNLOCK_2 0x2AAA
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#define ADDR_COMMAND 0x5555
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/* Commands */
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#define CMD_UNLOCK_DATA_1 0xAA
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#define CMD_UNLOCK_DATA_2 0x55
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#define CMD_MANUFACTURER_UNLOCK_DATA 0x90
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#define CMD_UNLOCK_BYPASS_MODE 0x20
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#define CMD_PROGRAM_UNLOCK_DATA 0xA0
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#define CMD_RESET_DATA 0xF0
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#define CMD_SECTOR_ERASE_UNLOCK_DATA 0x80
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#define CMD_SECTOR_ERASE_UNLOCK_DATA_2 0x30
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#define CMD_ERASE_DATA 0x10
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#define CMD_UNLOCK_SECTOR 0x60
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extern int flashcount;
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void flash_command(unsigned char *addr, unsigned char command);
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void flash_program (unsigned char *addr);
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void flash_program_atmel (unsigned char *addr);
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int flash_ready_toggle (unsigned char *addr, unsigned int offset);
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int flash_ready_poll (unsigned char *addr, unsigned int offset, unsigned char data);
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int flash_erase (unsigned char *addr, unsigned int flashnum);
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int flash_erase_sectors (unsigned char *addr, unsigned int flashnum,
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unsigned int startsec, unsigned int endsec);
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void iflash_program_byte (unsigned char *addr, unsigned int offset, unsigned char data);
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int iflash_erase_sectors (unsigned char *addr, unsigned int flashnum, unsigned int startsec, unsigned int endsec);
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unsigned char flash_readb(unsigned char *addr, unsigned int offset);
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void flash_writeb(unsigned char *addr, unsigned int offset, unsigned char data);
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int flash_probe_address(void *address);
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void flash_probe_area(unsigned long romaddr, unsigned long romsize,
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int map_always);
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