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/*
* OpenBIOS - free your system!
* ( firmware/flash device driver for Linux )
*
* flashchips.h - flash device structures.
*
* This program is part of a free implementation of the IEEE 1275-1994
* Standard for Boot (Initialization Configuration) Firmware.
*
* Copyright (C) 1998-2004 Stefan Reinauer, <stepan@openbios.org>
*
* 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; version 2 of the License.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*
*/
/*
* flags structure
* bit 0 = needs erase before write (f_needs_erase)
* bit 1-3 flash manu type
* bit 4-6 probably needed for more manu
* bit 7 = sector erase happens one sector at a time
* (f_slow_sector_erase)
*/
#define f_needs_erase 0x01
/* 3 bit for flashtype */
#define f_manuf_compl 0x0e /* Mask out bits 1-3 */
#define f_intel_compl 0x02 /* 001 */
#define f_atmel_compl 0x04 /* 010 */
#define f_fwh_compl 0x08 /* 100 */
#define f_slow_sector_erase 0x80
#define FLASH_UNKNOWN 0
#define FLASH_CFI 1
#define FLASH_JEDEC 2
typedef struct flashdevice {
unsigned long mapped;
unsigned long physical;
unsigned long offset;
unsigned int flashnum, manufnum;
unsigned short id;
unsigned int size, sectors;
unsigned int idx;
void *data;
int open_mode, open_cnt;
} flashdevice_t;
typedef struct flashchip {
char *name;
unsigned short id;
unsigned int voltage;
unsigned int size; /* KBytes */
unsigned int supported;
unsigned int pagesize; /* Bytes */
unsigned int flags;
unsigned int *sectors; /* Kbytes[] including end of last sector */
} flashchip_t;
typedef struct manufacturer {
char *name;
unsigned short id;
} manufacturer_t;
extern unsigned int currflash;
extern flashdevice_t flashdevices[BIOS_MAXDEV];
extern const flashchip_t flashchips[];
extern const manufacturer_t manufacturers[];
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