1 /* $NetBSD: flashvar.h,v 1.3 2012/10/27 17:17:55 chs 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Intel 28F128 Flash Memory driver variables 34 */ 35 36 #define FLASH_RESET 0xff 37 38 39 #define FLASH_ST_BUSY 0x01 40 41 struct flash_softc { 42 bus_space_tag_t sc_iot; 43 bus_space_handle_t sc_ioh; 44 size_t sc_size; 45 size_t sc_block_size; 46 int sc_status; 47 u_int8_t *sc_buf; 48 const struct flashops { 49 const char *fo_name; 50 int (*fo_erase) (struct flash_softc *, bus_size_t); 51 int (*fo_write) (struct flash_softc *, bus_size_t); 52 } *sc_ops; 53 54 int sc_write_buffer_size; 55 int sc_typ_word_prog_timo; 56 int sc_max_word_prog_timo; 57 int sc_typ_buffer_write_timo; 58 int sc_max_buffer_write_timo; 59 int sc_typ_block_erase_timo; 60 int sc_max_block_erase_timo; 61 u_int8_t sc_cfi_raw[CFI_TOTAL_SIZE]; 62 }; 63 64 #define flash_block_erase(sc, off) (sc)->sc_ops->fo_erase((sc), (off)) 65 #define flash_block_write(sc, off) (sc)->sc_ops->fo_write((sc), (off)) 66 67 #define FLASH_TIMEOUT 0x40000000 68