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