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flashvar.h revision 1.1 
      1 /* $NetBSD: flashvar.h,v 1.1 2003/05/01 07:02:04 igy Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Naoto Shimazaki of YOKOGAWA Electric Corporation.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 /*
     40  * Intel 28F128 Flash Memory driver variables
     41  */
     42 
     43 #define FLASH_RESET	0xff
     44 
     45 
     46 #define FLASH_ST_BUSY	0x01
     47 
     48 struct flash_softc {
     49 	struct device		sc_dev;
     50 	bus_space_tag_t		sc_iot;
     51 	bus_space_handle_t	sc_ioh;
     52 	size_t			sc_size;
     53 	size_t			sc_block_size;
     54 	int			sc_status;
     55 	u_int8_t		*sc_buf;
     56 	const struct flashops {
     57 		const char	*fo_name;
     58 		int	(*fo_erase)	(struct flash_softc *, bus_size_t);
     59 		int	(*fo_write)	(struct flash_softc *, bus_size_t);
     60 	} *sc_ops;
     61 
     62 	int			sc_write_buffer_size;
     63 	int			sc_typ_word_prog_timo;
     64 	int			sc_max_word_prog_timo;
     65 	int			sc_typ_buffer_write_timo;
     66 	int			sc_max_buffer_write_timo;
     67 	int			sc_typ_block_erase_timo;
     68 	int			sc_max_block_erase_timo;
     69 	u_int8_t		sc_cfi_raw[CFI_TOTAL_SIZE];
     70 };
     71 
     72 #define flash_block_erase(sc, off)	(sc)->sc_ops->fo_erase((sc), (off))
     73 #define flash_block_write(sc, off)	(sc)->sc_ops->fo_write((sc), (off))
     74 
     75 #define	FLASH_TIMEOUT	0x40000000
     76