70 lines
3.2 KiB
C
70 lines
3.2 KiB
C
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/* $NetBSD: 3c523reg.h,v 1.1 2001/03/16 23:03:15 jdolecek Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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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 by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* The 3c523 i/o space is 8 bytes long. The first 6 bytes is the ethernet
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* address, followed by control & status register and card's revision number.
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*/
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#define ELMC_IOADDR_BASE 0x300
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#define ELMC_IOADDR_SIZE 8
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#define ELMC_CTRL 6 /* control & status register */
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#define ELMC_REVISION 7 /* revision, first 4 bits only */
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#define ELMC_REVISION_MASK 0xf
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/*
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* The following define the bits for the control & status register.
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*
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* The bank select registers can be used if there is more than 16KB
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* of memory on the card. Bank 3 is the one for the bottom 16KB
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* (i.e. the common size), but the card defaults to bank 0. Hence we
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* need to set the bank to 3 to make the card operate at all.
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*/
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#define ELMC_CTRL_BS0 0x01 /* RW bank select */
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#define ELMC_CTRL_BS1 0x02 /* RW bank select */
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#define ELMC_CTRL_BS3 (ELMC_CTRL_BS0|ELMC_CTRL_BS1) /* shortcut */
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#define ELMC_CTRL_INT 0x04 /* RW interrupt enable, assert high */
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#define ELMC_CTRL_LOOP 0x20 /* RW loopback enable, assert high */
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#define ELMC_CTRL_CHA 0x40 /* RW channel attention, assert high */
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#define ELMC_CTRL_RST 0x80 /* RW 82586 reset, assert low */
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/*
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* The base memory space address is 0xc0000 (see 3c523 docs). The card
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* has actually 24KB of memory, but we only use first 16KB -
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* the upper 8KB is card's BIOS.
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*/
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#define ELMC_MADDR_BASE 0x0c0000
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#define ELMC_MADDR_SIZE 0x4000 /* use only 16K of shared mem */
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