1 /* $NetBSD: 3c523reg.h,v 1.2 2008/04/28 20:23:53 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * The 3c523 i/o space is 8 bytes long. The first 6 bytes is the ethernet 31 * address, followed by control & status register and card's revision number. 32 */ 33 #define ELMC_IOADDR_BASE 0x300 34 #define ELMC_IOADDR_SIZE 8 35 #define ELMC_CTRL 6 /* control & status register */ 36 #define ELMC_REVISION 7 /* revision, first 4 bits only */ 37 #define ELMC_REVISION_MASK 0xf 38 39 /* 40 * The following define the bits for the control & status register. 41 * 42 * The bank select registers can be used if there is more than 16KB 43 * of memory on the card. Bank 3 is the one for the bottom 16KB 44 * (i.e. the common size), but the card defaults to bank 0. Hence we 45 * need to set the bank to 3 to make the card operate at all. 46 */ 47 #define ELMC_CTRL_BS0 0x01 /* RW bank select */ 48 #define ELMC_CTRL_BS1 0x02 /* RW bank select */ 49 #define ELMC_CTRL_BS3 (ELMC_CTRL_BS0|ELMC_CTRL_BS1) /* shortcut */ 50 #define ELMC_CTRL_INT 0x04 /* RW interrupt enable, assert high */ 51 #define ELMC_CTRL_LOOP 0x20 /* RW loopback enable, assert high */ 52 #define ELMC_CTRL_CHA 0x40 /* RW channel attention, assert high */ 53 #define ELMC_CTRL_RST 0x80 /* RW 82586 reset, assert low */ 54 55 /* 56 * The base memory space address is 0xc0000 (see 3c523 docs). The card 57 * has actually 24KB of memory, but we only use first 16KB - 58 * the upper 8KB is card's BIOS. 59 */ 60 #define ELMC_MADDR_BASE 0x0c0000 61 #define ELMC_MADDR_SIZE 0x4000 /* use only 16K of shared mem */ 62 63