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155 lines
5.5 KiB
155 lines
5.5 KiB
/* $Id: pflash.h,v 1.1.1.1 2006/09/14 01:59:06 root Exp $ */
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/*
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* Copyright (c) 2000 Opsycon AB (www.opsycon.se)
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* Copyright (c) 2000 Rtmx, Inc (www.rtmx.com)
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for Rtmx, Inc by
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* Opsycon Open System Consulting AB, Sweden.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* 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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*/
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#ifndef __PFLASH_H
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#define __PFLASH_H
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struct fl_functions;
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/*
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* Structure describing each FLASH device the FLASH code can handle.
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*/
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struct fl_device {
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char *fl_name;
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char fl_mfg; /* Flash manufacturer code */
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char fl_id; /* Device id code */
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char fl_proto; /* Command protocol */
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char fl_cap; /* Flash capabilites */
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int fl_size; /* Device size in k-bytes */
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int fl_secsize; /* Device sector-size in k-bytes */
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int *fl_varsecsize; /* Not NULL, if device has flexable sector size */
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struct fl_functions *functions;
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};
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#define FL_PROTO_INT 1 /* Scalable Command Set */
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#define FL_PROTO_AMD 2 /* AMD in lack of better name... */
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#define FL_PROTO_SST 2
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#define FL_PROTO_ST 2
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#define FL_PROTO_WINBOND 2
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#define FL_CAP_DE 0x01 /* Device have entire device Erase */
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#define FL_CAP_A7 0x02 /* Device uses a7 for Bulk Erase */
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/*
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* Structure describing targets FLASH memory map.
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*/
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struct fl_map {
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u_int32_t fl_map_base; /* Start of flash area in physical map */
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u_int32_t fl_map_size; /* Size of flash area in physical map */
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int fl_map_width; /* Number of bytes to program in one cycle */
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int fl_map_chips; /* Number of chips to operate in one cycle */
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int fl_map_bus; /* Bus width type, se below */
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int fl_map_offset; /* Flash Offset mapped in memory */
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int fl_type;
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};
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#define FL_BUS_8 0x01 /* Byte wide bus */
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#define FL_BUS_16 0x02 /* Short wide bus */
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#define FL_BUS_32 0x03 /* Word wide bus */
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#define FL_BUS_64 0x04 /* Quad wide bus */
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#define FL_BUS_8_ON_64 0x05 /* Byte wide on quad wide bus */
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#define FL_BUS_16_ON_64 0x06 /* 16-bit wide flash on quad wide bus */
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/*
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* Structure of functions for Flash devices
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*/
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struct fl_functions {
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int (*erase_chip) /* Erase Chip */
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__P((struct fl_map *, struct fl_device *));
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int (*erase_sector) /* Erase Sector */
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__P((struct fl_map *, struct fl_device *, int));
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int (*isbusy) /* Check if device is Busy */
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__P((struct fl_map *, struct fl_device *, int, int, int));
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int (*reset) /* Reset Chip */
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__P((struct fl_map *, struct fl_device *));
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int (*erase_suspend) /* Erase Suspend */
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__P((struct fl_map *, struct fl_device *));
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int (*program) /* Program Device */
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__P((struct fl_map *, struct fl_device *, int, unsigned char *));
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};
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/*
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* Flash Commands
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*/
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#define FL_AUTOSEL 0x90 /* Device identification */
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#define FL_RESET 0xf0 /* Return to DATA mode */
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#define FL_ERASE 0x80
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#define FL_ERASE_CHIP 0x10
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#define FL_CHIP 0x10
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#define FL_SECT 0x30
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#define FL_PGM 0xa0
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#define FL_SUSPEND 0xb0 /* Erase Suspend */
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#define FL_RESUME 0x30 /* Erase Resume */
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#define AMD_CMDOFFS 0x555
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#define AMD_CMDOFFS1 0x555
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#define AMD_CMDOFFS2 0x2AA
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#define SST_CMDOFFS 0x5555
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#define SST_CMDOFFS1 0x5555
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#define SST_CMDOFFS2 0x2aaa
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#define WINBOND_CMDOFFS 0x5555
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#define WINBOND_CMDOFFS1 0x5555
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#define WINBOND_CMDOFFS2 0x2aaa
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#define FL_INT_FCE 0x30 /* Full Chip Erase */
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#define FL_INT_FCE_A7 0xa7 /* Full Chip Erase */
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#define FL_INT_BE 0x20 /* Block Erase */
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#define FL_INT_CNF 0xd0 /* Command confirm */
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#define FL_INT_BUSY 0x80 /* Device busy status */
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#define FL_INT_CLR 0x50 /* Clear status register */
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#define FL_INT_READ 0xff /* Set to read mode */
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#define FL_INT_PGM 0x40 /* FLASH program */
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/* Prototypes */
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struct fl_map *fl_find_map __P((void *));
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struct fl_device *fl_devident __P((void *, struct fl_map **));
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void fl_query_info __P((void));
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int fl_erase_device __P((void *, int, int));
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int fl_program_device __P((void *, void *, int, int));
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int fl_verify_device __P((void *, void *, int, int));
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extern struct fl_device fl_known_dev[];
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extern struct fl_functions fl_func_amd;
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extern struct fl_functions fl_func_int;
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extern struct fl_functions fl_func_sst;
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extern struct fl_functions fl_func_spi;
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extern struct fl_functions fl_func_st;
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extern struct fl_functions fl_func_winbond;
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#endif
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