/* $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 */
