xref: /src/sys/dev/ic/tulipreg.h

/*	$NetBSD: tulipreg.h,v 1.6 1999/09/20 19:26:54 thorpej Exp $	*/

/*-
 * Copyright (c) 1999 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
 * NASA Ames Research Center.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the NetBSD
 *	Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 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.
 */

#ifndef _DEV_IC_TULIPREG_H_
#define	_DEV_IC_TULIPREG_H_

/*
 * Register description for the Digital Semiconductor ``Tulip'' (21x4x)
 * Ethernet controller family, and a variety of clone chips, including:
 *
 *	- Macronix 98713, 98713A, 98715, 98715A, 98725 (PMAC):
 *
 *	  These chips are fairly straight-forward Tulip clones.
 *	  The 98713 and 98713A have an MII.  All have an internal
 *	  transciever capable of NWAY.  The 98713A, 98715A, and
 *	  98725 support power management.
 *
 *	- Lite-On 82C168, 82C169 (PNIC):
 *
 *	  These are Tulip clones with a few small differences; the
 *	  EEPROM is accessed totally differently, as is the MII.
 *	  The PNIC also has a built-in NWAY transciever.
 *
 *	- Winbond 89C840F
 *
 *	  Fairly straight-forward Tulip clone, with the exception
 *	  that registers don't have a pad longword between them,
 *	  and the receive filter is set up differently: instead of
 *	  a setup packet, we have 2 32-bit multicast hash table
 *	  registers, and 2 station address registers.
 *
 * Some of the clone chips have different registers, and some have
 * different bits in the same registers.  These will be denoted by
 * PMAC, PNIC, and WINB in the register/bit names.
 */

/*
 * Tulip buffer descriptor.  Must be 4-byte aligned.
 *
 * Note for receive descriptors, the byte count fields must
 * be a multiple of 4.
 */
struct tulip_desc {
	__volatile u_int32_t td_status;	  /* Status */
	__volatile u_int32_t td_ctl;	  /* Control and Byte Counts */
	__volatile u_int32_t td_bufaddr1; /* Buffer Address 1 */
	__volatile u_int32_t td_bufaddr2; /* Buffer Address 2 */
};

/*
 * Descriptor Status bits common to transmit and receive.
 */
#define	TDSTAT_OWN	0x80000000	/* Tulip owns descriptor */
#define	TDSTAT_ES	0x00008000	/* Error Summary */

/*
 * Descriptor Status bits for Receive Descriptor.
 */
#define	TDSTAT_Rx_FF	0x40000000	/* Filtering Fail */
#define	TDSTAT_WINB_Rx_RCMP 0x40000000	/* Receive Complete */
#define	TDSTAT_Rx_FL	0x3fff0000	/* Frame Length including CRC */
#define	TDSTAT_Rx_DE	0x00004000	/* Descriptor Error */
#define	TDSTAT_Rx_DT	0x00003000	/* Data Type */
#define	TDSTAT_Rx_RF	0x00000800	/* Runt Frame */
#define	TDSTAT_Rx_MF	0x00000400	/* Multicast Frame */
#define	TDSTAT_Rx_FS	0x00000200	/* First Descriptor */
#define	TDSTAT_Rx_LS	0x00000100	/* Last Descriptor */
#define	TDSTAT_Rx_TL	0x00000080	/* Frame Too Long */
#define	TDSTAT_Rx_CS	0x00000040	/* Collision Seen */
#define	TDSTAT_Rx_RT	0x00000020	/* Frame Type */
#define	TDSTAT_Rx_RW	0x00000010	/* Receive Watchdog */
#define	TDSTAT_Rx_RE	0x00000008	/* Report on MII Error */
#define	TDSTAT_Rx_DB	0x00000004	/* Dribbling Bit */
#define	TDSTAT_Rx_CE	0x00000002	/* CRC Error */
#define	TDSTAT_Rx_ZER	0x00000001	/* Zero (always 0) */

#define	TDSTAT_Rx_LENGTH(x)	(((x) & TDSTAT_Rx_FL) >> 16)

#define	TDSTAT_Rx_DT_SR	0x00000000	/* Serial Received Frame */
#define	TDSTAT_Rx_DT_IL	0x00001000	/* Internal Loopback Frame */
#define	TDSTAT_Rx_DT_EL	0x00002000	/* External Loopback Frame */
#define	TDSTAT_Rx_DT_r	0x00003000	/* Reserved */

/*
 * Descriptor Status bits for Transmit Descriptor.
 */
#define	TDSTAT_WINB_Tx_TE 0x00008000	/* Transmit Error */
#define	TDSTAT_Tx_TO	0x00004000	/* Transmit Jabber Timeout */
#define	TDSTAT_Tx_LO	0x00000800	/* Loss of Carrier */
#define	TDSTAT_Tx_NC	0x00000400	/* No Carrier */
#define	TDSTAT_Tx_LC	0x00000200	/* Late Collision */
#define	TDSTAT_Tx_EC	0x00000100	/* Excessive Collisions */
#define	TDSTAT_Tx_HF	0x00000080	/* Heartbeat Fail */
#define	TDSTAT_Tx_CC	0x00000078	/* Collision Count */
#define	TDSTAT_Tx_LF	0x00000004	/* Link Fail */
#define	TDSTAT_Tx_UF	0x00000002	/* Underflow Error */
#define	TDSTAT_Tx_DE	0x00000001	/* Deferred */

#define	TDSTAT_Tx_COLLISIONS(x)	(((x) & TDSTAT_Tx_CC) >> 3)

/*
 * Descriptor Control bits common to transmit and receive.
 */
#define	TDCTL_SIZE1	0x000007ff	/* Size of buffer 1 */
#define	TDCTL_SIZE1_SHIFT 0

#define	TDCTL_SIZE2	0x003ff800	/* Size of buffer 2 */
#define	TDCTL_SIZE2_SHIFT 11

#define	TDCTL_ER	0x02000000	/* End of Ring */
#define	TDCTL_CH	0x01000000	/* Second Address Chained */

/*
 * Descriptor Control bits for Transmit Descriptor.
 */
#define	TDCTL_Tx_IC	0x80000000	/* Interrupt on Completion */
#define	TDCTL_Tx_LS	0x40000000	/* Last Segment */
#define	TDCTL_Tx_FS	0x20000000	/* First Segment */
#define	TDCTL_Tx_FT1	0x10000000	/* Filtering Type 1 */
#define	TDCTL_Tx_SET	0x08000000	/* Setup Packet */
#define	TDCTL_Tx_AC	0x04000000	/* Add CRC Disable */
#define	TDCTL_Tx_DPD	0x00800000	/* Disabled Padding */
#define	TDCTL_Tx_FT0	0x00400000	/* Filtering Type 0 */

/*
 * The Tulip filter is programmed by "transmitting" a Setup Packet
 * (indicated by TDCTL_Tx_SET).  The filtering type is indicated
 * as follows:
 *
 *	FT1	FT0	Description
 *	---	---	-----------
 *	0	0	Perfect Filtering: The Tulip interprets the
 *			descriptor buffer as a table of 16 MAC addresses
 *			that the Tulip should receive.
 *
 *	0	1	Hash Filtering: The Tulip interprets the
 *			descriptor buffer as a 512-bit hash table
 *			plus one perfect address.  If the incoming
 *			address is Multicast, the hash table filters
 *			the address, else the address is filtered by
 *			the perfect address.
 *
 *	1	0	Inverse Filtering: Like Perfect Filtering, except
 *			the table is addresses that the Tulip does NOT
 *			receive.
 *
 *	1	1	Hash-only Filtering: Like Hash Filtering, but
 *			physical addresses are matched by the hash table
 *			as well, and not by matching a single perfect
 *			address.
 *
 * A Setup Packet must always be 192 bytes long.  The Tulip can store
 * 16 MAC addresses.  If not all 16 are specified in Perfect Filtering
 * or Inverse Filtering mode, then unused entries should duplicate
 * one of the valid entries.
 */
#define	TDCTL_Tx_FT_PERFECT	0
#define	TDCTL_Tx_FT_HASH	TDCTL_Tx_FT0
#define	TDCTL_Tx_FT_INVERSE	TDCTL_Tx_FT1
#define	TDCTL_Tx_FT_HASHONLY	(TDCTL_Tx_FT1|TDCTL_Tx_FT0)

#define	TULIP_SETUP_PACKET_LEN	192
#define	TULIP_MAXADDRS		16
#define	TULIP_MCHASHSIZE	512

/*
 * Maximum size of a Tulip Ethernet Address ROM or SROM.
 */
#define	TULIP_MAX_ROM_SIZE	128

/*
 * Format of the standard Tulip SROM information:
 *
 *	Byte offset	Size	Usage
 *	0		18	reserved
 *	18		1	SROM Format Version
 *	19		1	Chip Count
 *	20		6	IEEE Network Address
 *	26		1	Chip 0 Device Number
 *	27		2	Chip 0 Info Leaf Offset
 *	29		1	Chip 1 Device Number
 *	30		2	Chip 1 Info Leaf Offset
 *	32		1	Chip 2 Device Number
 *	33		2	Chip 2 Info Leaf Offset
 *	...		1	Chip n Device Number
 *	...		2	Chip n Info Leaf Offset
 *	...		...	...
 *	Chip Info Leaf Information
 *	...
 *	...
 *	...
 *	126		2	CRC32 checksum
 */
#define	TULIP_ROM_SROM_FORMAT_VERION		18		/* B */
#define	TULIP_ROM_CHIP_COUNT			19		/* B */
#define	TULIP_ROM_IEEE_NETWORK_ADDRESS		20
#define	TULIP_ROM_CHIPn_DEVICE_NUMBER(n)	(26 + ((n) * 3))/* B */
#define	TULIP_ROM_CHIPn_INFO_LEAF_OFFSET(n)	(27 + ((n) * 3))/* W */
#define	TULIP_ROM_CRC32_CHECKSUM		126		/* W */

#define	TULIP_ROM_IL_SELECT_CONN_TYPE		0		/* W */
#define	TULIP_ROM_IL_MEDIA_COUNT		2		/* B */
#define	TULIP_ROM_IL_MEDIAn_BLOCK_BASE		3

#define	SELECT_CONN_TYPE_TP		0x0000
#define	SELECT_CONN_TYPE_TP_AUTONEG	0x0100
#define	SELECT_CONN_TYPE_TP_FDX		0x0204
#define	SELECT_CONN_TYPE_TP_NOLINKPASS	0x0400
#define	SELECT_CONN_TYPE_BNC		0x0001
#define	SELECT_CONN_TYPE_AUI		0x0002
#define	SELECT_CONN_TYPE_ASENSE		0x0800
#define	SELECT_CONN_TYPE_ASENSE_AUTONEG	0x0900

#define	TULIP_ROM_MB_MEDIA_CODE		0x3f
#define	TULIP_ROM_MB_MEDIA_TP		0x00
#define	TULIP_ROM_MB_MEDIA_BNC		0x01
#define	TULIP_ROM_MB_MEDIA_AUI		0x02
#define	TULIP_ROM_MB_MEDIA_TP_FDX	0x04

#define	TULIP_ROM_MB_EXT		0x40

#define	TULIP_ROM_MB_CSR13		1			/* W */
#define	TULIP_ROM_MB_CSR14		3			/* W */
#define	TULIP_ROM_MB_CSR15		5			/* W */

#define	TULIP_ROM_MB_SIZE(mc)		(((mc) & TULIP_ROM_MB_EXT) ? 7 : 1)

#define	TULIP_ROM_GETW(data, off) ((data)[(off)] | ((data)[(off) + 1]) << 8)

/*
 * Tulip control registers.
 */

#define	TULIP_CSR0	0x00
#define	TULIP_CSR1	0x08
#define	TULIP_CSR2	0x10
#define	TULIP_CSR3	0x18
#define	TULIP_CSR4	0x20
#define	TULIP_CSR5	0x28
#define	TULIP_CSR6	0x30
#define	TULIP_CSR7	0x38
#define	TULIP_CSR8	0x40
#define	TULIP_CSR9	0x48
#define	TULIP_CSR10	0x50
#define	TULIP_CSR11	0x58
#define	TULIP_CSR12	0x60
#define	TULIP_CSR13	0x68
#define	TULIP_CSR14	0x70
#define	TULIP_CSR15	0x78
#define	TULIP_CSR16	0x80
#define	TULIP_CSR17	0x88
#define	TULIP_CSR18	0x90
#define	TULIP_CSR19	0x98
#define	TULIP_CSR20	0xa0

#define	TULIP_CSR_INDEX(csr)	((csr) >> 3)

/* CSR0 - Bus Mode */
#define	CSR_BUSMODE		TULIP_CSR0
#define	BUSMODE_SWR		0x00000001	/* software reset */
#define	BUSMODE_BAR		0x00000002	/* bus arbitration */
#define	BUSMODE_DSL		0x0000007c	/* descriptor skip length */
#define	BUSMODE_BLE		0x00000080	/* big endian */
						/* programmable burst length */
#define	BUSMODE_PBL_DEFAULT	0x00000000	/*     default value */
#define	BUSMODE_PBL_1LW		0x00000100	/*     1 longword */
#define	BUSMODE_PBL_2LW		0x00000200	/*     2 longwords */
#define	BUSMODE_PBL_4LW		0x00000400	/*     4 longwords */
#define	BUSMODE_PBL_8LW		0x00000800	/*     8 longwords */
#define	BUSMODE_PBL_16LW	0x00001000	/*    16 longwords */
#define	BUSMODE_PBL_32LW	0x00002000	/*    32 longwords */
						/* cache alignment */
#define	BUSMODE_CAL_NONE	0x00000000	/*     no alignment */
#define	BUSMODE_CAL_8LW		0x00004000	/*     8 longwords */
#define	BUSMODE_CAL_16LW	0x00008000	/*    16 longwords */
#define	BUSMODE_CAL_32LW	0x0000c000	/*    32 longwords */
#define	BUSMODE_DAS		0x00010000	/* diagnostic address space */
						/*   must be zero on most */
						/* transmit auto-poll */
		/*
		 * Transmit auto-polling not supported on:
		 *	Winbond 89C040F
		 */
#define	BUSMODE_TAP_NONE	0x00000000	/*     no auto-polling */
#define	BUSMODE_TAP_200us	0x00020000	/*   200 uS */
#define	BUSMODE_TAP_800us	0x00040000	/*   400 uS */
#define	BUSMODE_TAP_1_6ms	0x00060000	/*   1.6 mS */
#define	BUSMODE_TAP_12_8us	0x00080000	/*  12.8 uS (21041+) */
#define	BUSMODE_TAP_25_6us	0x000a0000	/*  25.6 uS (21041+) */
#define	BUSMODE_TAP_51_2us	0x000c0000	/*  51.2 uS (21041+) */
#define	BUSMODE_TAP_102_4us	0x000e0000	/* 102.4 uS (21041+) */
#define	BUSMODE_DBO		0x00100000	/* desc-only b/e (21041+) */
#define	BUSMODE_RME		0x00200000	/* rd/mult enab (21140+) */
#define	BUSMODE_WINB_WAIT	0x00200000	/* wait state insertion */
#define	BUSMODE_RLE		0x00800000	/* rd/line enab (21140+) */
#define	BUSMODE_WLE		0x01000000	/* wt/line enab (21140+) */
#define	BUSMODE_PNIC_MBO	0x04000000	/* magic `must be one' bit */
						/*    on Lite-On PNIC */


/* CSR1 - Transmit Poll Demand */
#define	CSR_TXPOLL		TULIP_CSR1
#define	TXPOLL_TPD		0x00000001	/* transmit poll demand */


/* CSR2 - Receive Poll Demand */
#define	CSR_RXPOLL		TULIP_CSR2
#define	RXPOLL_RPD		0x00000001	/* receive poll demand */


/* CSR3 - Receive List Base Address */
#define	CSR_RXLIST		TULIP_CSR3

/* CSR4 - Transmit List Base Address */
#define	CSR_TXLIST		TULIP_CSR4

/* CSR5 - Status */
#define	CSR_STATUS		TULIP_CSR5
#define	STATUS_TI		0x00000001	/* transmit interrupt */
#define	STATUS_TPS		0x00000002	/* transmit process stopped */
#define	STATUS_TU		0x00000004	/* transmit buffer unavail */
#define	STATUS_TJT		0x00000008	/* transmit jabber timeout */
#define	STATUS_WINB_REI		0x00000008	/* receive early interrupt */
#define	STATUS_LNPANC		0x00000010	/* link pass (21041) */
#define	STATUS_WINB_RERR	0x00000010	/* receive error */
#define	STATUS_UNF		0x00000020	/* transmit underflow */
#define	STATUS_RI		0x00000040	/* receive interrupt */
#define	STATUS_RU		0x00000080	/* receive buffer unavail */
#define	STATUS_RPS		0x00000100	/* receive process stopped */
#define	STATUS_RWT		0x00000200	/* receive watchdog timeout */
#define	STATUS_AT		0x00000400	/* SIA AUI/TP pin changed
						   (21040) */
#define	STATUS_WINB_TEI		0x00000400	/* transmit early interrupt */
#define	STATUS_FD		0x00000800	/* full duplex short frame
						   received (21040) */
#define	STATUS_TM		0x00000800	/* timer expired (21041) */
#define	STATUS_LNF		0x00001000	/* link fail (21040) */
#define	STATUS_SE		0x00002000	/* system error */
#define	STATUS_ER		0x00004000	/* early receive (21041) */
#define	STATUS_AIS		0x00008000	/* abnormal interrupt summary */
#define	STATUS_NIS		0x00010000	/* normal interrupt summary */
#define	STATUS_RS		0x000e0000	/* receive process state */
#define	STATUS_RS_STOPPED	0x00000000	/* Stopped */
#define	STATUS_RS_FETCH		0x00020000	/* Running - fetch receive
						   descriptor */
#define	STATUS_RS_CHECK		0x00040000	/* Running - check for end
						   of receive */
#define	STATUS_RS_WAIT		0x00060000	/* Running - wait for packet */
#define	STATUS_RS_SUSPENDED	0x00080000	/* Suspended */
#define	STATUS_RS_CLOSE		0x000a0000	/* Running - close receive
						   descriptor */
#define	STATUS_RS_FLUSH		0x000c0000	/* Running - flush current
						   frame from FIFO */
#define	STATUS_RS_QUEUE		0x000e0000	/* Running - queue current
						   frame from FIFO into
						   buffer */
#define	STATUS_TS		0x00700000	/* transmit process state */
#define	STATUS_TS_STOPPED	0x00000000	/* Stopped */
#define	STATUS_TS_FETCH		0x00100000	/* Running - fetch transmit
						   descriptor */
#define	STATUS_TS_WAIT		0x00200000	/* Running - wait for end
						   of transmission */
#define	STATUS_TS_READING	0x00300000	/* Running - read buffer from
						   memory and queue into
						   FIFO */
#define	STATUS_TS_RESERVED	0x00400000	/* RESERVED */
#define	STATUS_TS_SETUP		0x00500000	/* Running - Setup packet */
#define	STATUS_TS_SUSPENDED	0x00600000	/* Suspended */
#define	STATUS_TS_CLOSE		0x00700000	/* Running - close transmit
						   descriptor */
#define	STATUS_EB		0x03800000	/* error bits */
#define	STATUS_EB_PARITY	0x00000000	/* parity errror */
#define	STATUS_EB_MABT		0x00800000	/* master abort */
#define	STATUS_EB_TABT		0x01000000	/* target abort */
#define	STATUS_PNIC_TXABORT	0x04000000	/* transmit aborted */


/* CSR6 - Operation Mode */
#define	CSR_OPMODE		TULIP_CSR6
#define	OPMODE_HP		0x00000001	/* hash/perfect mode (ro) */
#define	OPMODE_SR		0x00000002	/* start receive */
#define	OPMODE_HO		0x00000004	/* hash only mode (ro) */
#define	OPMODE_PB		0x00000008	/* pass bad frames */
#define	OPMODE_WINB_APP		0x00000008	/* accept all physcal packet */
#define	OPMODE_IF		0x00000010	/* inverse filter mode (ro) */
#define	OPMODE_WINB_AMP		0x00000010	/* accept multicast packet */
#define	OPMODE_SB		0x00000020	/* start backoff counter */
#define	OPMODE_WINB_ABP		0x00000020	/* accept broadcast packet */
#define	OPMODE_PR		0x00000040	/* promiscuous mode */
#define	OPMODE_WINB_ARP		0x00000040	/* accept runt packet */
#define	OPMODE_PM		0x00000080	/* pass all multicast */
#define	OPMODE_WINB_AEP		0x00000080	/* accept error packet */
#define	OPMODE_FKD		0x00000100	/* flaky oscillator disable */
#define	OPMODE_FD		0x00000200	/* full-duplex mode */
#define	OPMODE_OM		0x00000c00	/* operating mode */
#define	OPMODE_OM_NORMAL	0x00000000	/*     normal mode */
#define	OPMODE_OM_INTLOOP	0x00000400	/*     internal loopback */
#define	OPMODE_OM_EXTLOOP	0x00000800	/*     external loopback */
#define	OPMODE_FC		0x00001000	/* force collision */
#define	OPMODE_ST		0x00002000	/* start transmitter */
#define	OPMODE_TR		0x0000c000	/* threshold control */
#define	OPMODE_TR_72		0x00000000	/*     72 bytes */
#define	OPMODE_TR_96		0x00004000	/*     96 bytes */
#define	OPMODE_TR_128		0x00008000	/*    128 bytes */
#define	OPMODE_TR_160		0x0000c000	/*    160 bytes */
#define	OPMODE_WINB_TTH		0x001fc000	/* transmit threshold */
#define	OPMODE_WINB_TTH_SHIFT	14
#define	OPMODE_BP		0x00010000	/* backpressure enable */
#define	OPMODE_CA		0x00020000	/* capture effect enable */
#define	OPMODE_PNIC_TBEN	0x00020000	/* Tx backoff offset enable */
#define	OPMODE_PS		0x00040000	/* port select:
						   1 = MII/SYM, 0 = SRL
						   (21140) */
#define	OPMODE_HBD		0x00080000	/* heartbeat disable:
						   set in MII/SYM 100mbps,
						   set according to PHY
						   in MII 10mbps mode
						   (21140) */
#define	OPMODE_PNIC_IT		0x00100000	/* immediate transmit */
#define	OPMODE_SF		0x00200000	/* store and forward mode
						   (21140) */
#define	OPMODE_WINB_REIT	0x1fe00000	/* receive eartly intr thresh */
#define	OPMODE_WINB_REIT_SHIFT	21
#define	OPMODE_TTM		0x00400000	/* Transmit Threshold Mode:
						   1 = 10mbps, 0 = 100mbps
						   (21140) */
#define	OPMODE_PCS		0x00800000	/* PCS function (21140) */
#define	OPMODE_SCR		0x01000000	/* scrambler mode (21140) */
#define	OPMODE_MBO		0x02000000	/* must be one (21140) */
#define	OPMODE_PNIC_DRC		0x20000000	/* don't include CRC in Rx
						   frames (PNIC) */
#define	OPMODE_WINB_FES		0x20000000	/* fast ethernet select */
#define	OPMODE_RA		0x40000000	/* receive all (21140) */
#define	OPMODE_PNIC_EED		0x40000000	/* 1 == ext, 0 == int ENDEC
						   (PNIC) */
#define	OPMODE_WINB_TEIO	0x40000000	/* transmit early intr on */
#define	OPMODE_SC		0x80000000	/* special capture effect
						   enable (21041+) */
#define	OPMODE_WINB_REIO	0x80000000	/* receive early intr on */

/* CSR7 - Interrupt Enable */
#define	CSR_INTEN		TULIP_CSR7
	/* See bits for CSR5 -- Status */


/* CSR8 - Missed Frames */
#define	CSR_MISSED		TULIP_CSR8
#define	MISSED_MFC		0x0000ffff	/* missed packet count */
#define	MISSED_MFO		0x00010000	/* missed packet count
						   overflowed */
#define	MISSED_FOC		0x0ffe0000	/* fifo overflow counter
						   (21140) */
#define	MISSED_OCO		0x10000000	/* overflow counter overflowed
						   (21140) */

#define	MISSED_GETMFC(x)	((x) & MISSED_MFC)
#define	MISSED_GETFOC(x)	(((x) & MISSED_FOC) >> 17)


/* CSR9 - MII, SROM, Boot ROM, Ethernet Address ROM register. */
#define	CSR_MIIROM		TULIP_CSR9
#define	MIIROM_DATA		0x000000ff	/* byte of data from
						   Ethernet Address ROM
						   (21040), byte of data
						   to/from Boot ROM (21041+) */
#define	MIIROM_SROMCS		0x00000001	/* SROM chip select */
#define	MIIROM_SROMSK		0x00000002	/* SROM clock */
#define	MIIROM_SROMDI		0x00000004	/* SROM data in (to) */
#define	MIIROM_SROMDO		0x00000008	/* SROM data out (from) */
#define	MIIROM_REG		0x00000400	/* external register select */
#define	MIIROM_SR		0x00000800	/* SROM select */
#define	MIIROM_BR		0x00001000	/* boot ROM select */
#define	MIIROM_WR		0x00002000	/* write to boot ROM */
#define	MIIROM_RD		0x00004000	/* read from boot ROM */
#define	MIIROM_MOD		0x00008000	/* mode select (ro) (21041) */
#define	MIIROM_MDC		0x00010000	/* MII clock */
#define	MIIROM_MDO		0x00020000	/* MII data out */
#define	MIIROM_MIIDIR		0x00040000	/* MII direction mode
						   1 = PHY in read,
						   0 = PHY in write */
#define	MIIROM_MDI		0x00080000	/* MII data in */
#define	MIIROM_DN		0x80000000	/* data not valid (21040) */

	/* SROM opcodes */
#define	TULIP_SROM_OPC_ERASE	0x04
#define	TULIP_SROM_OPC_WRITE	0x05
#define	TULIP_SROM_OPC_READ	0x06

	/* The Lite-On PNIC does this completely differently */
#define	PNIC_MIIROM_DATA	0x0000ffff	/* mask of data bits ??? */
#define	PNIC_MIIROM_BUSY	0x80000000	/* EEPROM is busy */


/* CSR10 - Boot ROM address register (21041+). */
#define	CSR_ROMADDR		TULIP_CSR10
#define	ROMADDR_MASK		0x000003ff	/* boot rom address */


/* CSR11 - General Purpose Timer (21041+). */
#define	CSR_GPT			TULIP_CSR11
#define	GPT_VALUE		0x0000ffff	/* timer value */
#define	GPT_CON			0x00010000	/* continuous mode */


/* CSR12 - SIA Status Register (21040, 21041). */
#define	CSR_SIASTAT		TULIP_CSR12
#define	SIASTAT_PAUI		0x00000001	/* pin AUI/TP indication
						   (21040) */
#define	SIASTAT_NCR		0x00000002	/* network connection error */
#define	SIASTAT_LKF		0x00000004	/* link fail status */
#define	SIASTAT_APS		0x00000008	/* auto polarity status */
#define	SIASTAT_DSD		0x00000010	/* PLL self test done */
#define	SIASTAT_DSP		0x00000020	/* PLL self test pass */
#define	SIASTAT_DAZ		0x00000040	/* PLL all zero */
#define	SIASTAT_DAO		0x00000080	/* PLL all one */
#define	SIASTAT_SRA		0x00000100	/* selected port receive
						   activity (21041) */
#define	SIASTAT_NRA		0x00000200	/* non-selected port
						   receive activity (21041) */
#define	SIASTAT_NSN		0x00000400	/* non-stable NLPs detected
						   (21041) */
#define	SIASTAT_TRF		0x00000800	/* transmit remote fault
						   (21041) */
#define	SIASTAT_ANS		0x00007000	/* autonegotiation state
						   (21041) */
#define	SIASTAT_ANS_DIS		0x00000000	/*     disabled */
#define	SIASTAT_ANS_TXDIS	0x00001000	/*     transmit disabled */
#define	SIASTAT_ANS_ABD		0x00002000	/*     ability detect */
#define	SIASTAT_ANS_ACKD	0x00003000	/*     acknowledge detect */
#define	SIASTAT_ANS_ACKC	0x00004000	/*     complete acknowledge */
#define	SIASTAT_ANS_FPLGOOD	0x00005000	/*     FLP link good */
#define	SIASTAT_ANS_LINKCHECK	0x00006000	/*     link check */
#define	SIASTAT_LPN		0x00008000	/* link partner negotiable
						   (21041) */
#define	SIASTAT_LPC		0xffff0000	/* link partner code word */

#define	SIASTAT_GETLPC(x)	(((x) & SIASTAT_LPC) >> 16)


/* CSR13 - SIA Connectivity Register (21040, 21041). */
#define	CSR_SIACONN		TULIP_CSR13
#define	SIACONN_SRL		0x00000001	/* SIA reset */
#define	SIACONN_PS		0x00000002	/* pin AUI/TP selection
						   (21040) */
#define	SIACONN_CAC		0x00000004	/* CSR autoconfiguration */
#define	SIACONN_AUI		0x00000008	/* select AUI (0 = TP) */
#define	SIACONN_EDP		0x00000010	/* SIA PLL external input
						   enable (21040) */
#define	SIACONN_ENI		0x00000020	/* encoder input multiplexer
						   (21040) */
#define	SIACONN_SIM		0x00000040	/* serial interface input
						   multiplexer (21040) */
#define	SIACONN_ASE		0x00000080	/* APLL start enable
						   (21040) */
#define	SIACONN_SEL		0x00000f00	/* external port output
						   multiplexer select
						   (21040) */
#define	SIACONN_IE		0x00001000	/* input enable (21040) */
#define	SIACONN_OE1_3		0x00002000	/* output enable 1, 3
						   (21040) */
#define	SIACONN_OE2_4		0x00004000	/* output enable 2, 4
						   (21040) */
#define	SIACONN_OE5_6_7		0x00008000	/* output enable 5, 6, 7
						   (21040) */
#define	SIACONN_SDM		0x0000ef00	/* SIA diagnostic mode;
						   always set to this value
						   for normal operation
						   (21041) */


/* CSR14 - SIA Transmit Receive Register (21040, 21041). */
#define	CSR_SIATXRX		TULIP_CSR14
#define	SIATXRX_ECEN		0x00000001	/* encoder enable */
#define	SIATXRX_LBK		0x00000002	/* loopback enable */
#define	SIATXRX_DREN		0x00000004	/* driver enable */
#define	SIATXRX_LSE		0x00000008	/* link pulse send enable */
#define	SIATXRX_CPEN		0x00000030	/* compensation enable */
#define	SIATXRX_CPEN_DIS0	0x00000000	/*     disabled */
#define	SIATXRX_CPEN_DIS1	0x00000010	/*     disabled */
#define	SIATXRX_CPEN_HIGHPWR	0x00000020	/*     high power */
#define	SIATXRX_CPEN_NORMAL	0x00000030	/*     normal */
#define	SIATXRX_MBO		0x00000040	/* must be one (21041 pass 2) */
#define	SIATXRX_ANE		0x00000080	/* autonegotiation enable
						   (21041) */
#define	SIATXRX_RSQ		0x00000100	/* receive squelch enable */
#define	SIATXRX_CSQ		0x00000200	/* collision squelch enable */
#define	SIATXRX_CLD		0x00000400	/* collision detect enable */
#define	SIATXRX_SQE		0x00000800	/* signal quality generation
						   enable */
#define	SIATXRX_LTE		0x00001000	/* link test enable */
#define	SIATXRX_APE		0x00002000	/* auto-polarity enable */
#define	SIATXRX_SPP		0x00004000	/* set plarity plus */
#define	SIATXRX_TAS		0x00008000	/* 10base-T/AUI autosensing
						   enable (21041) */


/* CSR15 - SIA General Register (21040, 21041). */
#define	CSR_SIAGEN		TULIP_CSR15
#define	SIAGEN_JBD		0x00000001	/* jabber disable */
#define	SIAGEN_HUJ		0x00000002	/* host unjab */
#define	SIAGEN_JCK		0x00000004	/* jabber clock */
#define	SIAGEN_ABM		0x00000008	/* BNC select (21041) */
#define	SIAGEN_RWD		0x00000010	/* receive watchdog disable */
#define	SIAGEN_RWR		0x00000020	/* receive watchdog release */
#define	SIAGEN_LE1		0x00000040	/* LED 1 enable (21041) */
#define	SIAGEN_LV1		0x00000080	/* LED 1 value (21041) */
#define	SIAGEN_TSCK		0x00000100	/* test clock */
#define	SIAGEN_FUSQ		0x00000200	/* force unsquelch */
#define	SIAGEN_FLF		0x00000400	/* force link fail */
#define	SIAGEN_LSD		0x00000800	/* LED stretch disable
						   (21041) */
#define	SIAGEN_DPST		0x00001000	/* PLL self-test start */
#define	SIAGEN_FRL		0x00002000	/* force receiver low */
#define	SIAGEN_LE2		0x00004000	/* LED 2 enable (21041) */
#define	SIAGEN_LV2		0x00008000	/* LED 2 value (21041) */


/* CSR12 - General Purpose Port (21140+). */
#define	CSR_GPP			TULIP_CSR12
#define	GPP_MD			0x000000ff	/* general purpose mode/data */
#define	GPP_GPC			0x00000100	/* general purpose control */
#define	GPP_PNIC_GPD		0x0000000f	/* general purpose data */
#define	GPP_PNIC_GPC		0x000000f0	/* general purpose control */

#define	GPP_PNIC_IN(x)		(1 << (x))
#define	GPP_PNIC_OUT(x, on)	(((on) << (x)) | (1 << ((x) + 4)))

/*
 * The Lite-On PNIC manual recommends the following for the General Purpose
 * I/O pins:
 *
 *	0	Speed Relay		1 == 100mbps
 *	1	100mbps loopback	1 == loopback
 *	2	BNC DC-DC converter	1 == select BNC
 *	3	Link 100		1 == 100baseTX link status
 */
#define	GPP_PNIC_PIN_SPEED_RLY	0
#define	GPP_PNIC_PIN_100M_LPKB	1
#define	GPP_PNIC_PIN_BNC_XMER	2
#define	GPP_PNIC_PIN_LNK100X	3


/* CSR15 - Watchdog timer (21140+). */
#define	CSR_WATCHDOG		TULIP_CSR15
#define	WATCHDOG_JBD		0x00000001	/* jabber disable */
#define	WATCHDOG_HUJ		0x00000002	/* host unjab */
#define	WATCHDOG_JCK		0x00000004	/* jabber clock */
#define	WATCHDOG_RWD		0x00000010	/* receive watchdog disable */
#define	WATCHDOG_RWR		0x00000020	/* receive watchdog release */


/*
 * Digital Semiconductor 21040 registers.
 */

/* CSR11 - Full Duplex Register */
#define	CSR_21040_FDX		TULIP_CSR11
#define	FDX21040_FDXACV		0x0000ffff	/* full duplex
						   autoconfiguration value */


/* SIA configuration for 10base-T (from the 21040 manual) */
#define	SIACONN_21040_10BASET	0x0000ef01
#define	SIATXRX_21040_10BASET	0x0000ffff
#define	SIAGEN_21040_10BASET	0x00000000


/* SIA configuration for 10base-T full-duplex (from the 21040 manual) */
#define SIACONN_21040_10BASET_FDX 0x0000ef01
#define	SIATXRX_21040_10BASET_FDX 0x0000fffd
#define	SIAGEN_21040_10BASET_FDX  0x00000000


/* SIA configuration for 10base-5 (from the 21040 manual) */
#define	SIACONN_21040_AUI	0x0000ef09
#define	SIATXRX_21040_AUI	0x00000705
#define	SIAGEN_21040_AUI	0x00000006


/* SIA configuration for External SIA (from the 21040 manual) */
#define	SIACONN_21040_EXTSIA	0x00003041
#define	SIATXRX_21040_EXTSIA	0x00000000
#define	SIAGEN_21040_EXTSIA	0x00000006


/*
 * Digital Semiconductor 21041 registers.
 */

/* SIA configuration for 10base-T (from the 21041 manual) */
#define	SIACONN_21041_10BASET	0x0000ef01
#define	SIATXRX_21041_10BASET	0x0000ff3f
#define	SIAGEN_21041_10BASET	0x00000000

#define	SIACONN_21041P2_10BASET	SIACONN_21041_10BASET
#define	SIATXRX_21041P2_10BASET	0x0000ffff
#define	SIAGEN_21041P2_10BASET	SIAGEN_21041_10BASET


/* SIA configuration for 10base-T full-duplex (from the 21041 manual) */
#define	SIACONN_21041_10BASET_FDX   0x0000ef01
#define	SIATXRX_21041_10BASET_FDX   0x0000ff3d
#define	SIAGEN_21041_10BASET_FDX    0x00000000

#define	SIACONN_21041P2_10BASET_FDX SIACONN_21041_10BASET_FDX
#define	SIATXRX_21041P2_10BASET_FDX 0x0000ffff
#define	SIAGEN_21041P2_10BASET_FDX  SIAGEN_21041_10BASET_FDX


/* SIA configuration for 10base-5 (from the 21041 manual) */
#define	SIACONN_21041_AUI	0x0000ef09
#define	SIATXRX_21041_AUI	0x0000f73d
#define	SIAGEN_21041_AUI	0x0000000e

#define	SIACONN_21041P2_AUI	SIACONN_21041_AUI
#define	SIATXRX_21041P2_AUI	0x0000f7fd
#define	SIAGEN_21041P2_AUI	SIAGEN_21041_AUI


/* SIA configuration for 10base-2 (from the 21041 manual) */
#define	SIACONN_21041_BNC	0x0000ef09
#define	SIATXRX_21041_BNC	0x0000f73d
#define	SIAGEN_21041_BNC	0x00000006

#define	SIACONN_21041P2_BNC	SIACONN_21041_BNC
#define	SIATXRX_21041P2_BNC	0x0000f7fd
#define	SIAGEN_21041P2_BNC	SIAGEN_21041_BNC


/*
 * Digital Semiconductor 21142/21143 registers.
 */

/* XXX */

/*
 * Lite-On 82C168/82C169 registers.
 */

/* ENDEC General Register */
#define	CSR_PNIC_ENDEC		0x78
#define	PNIC_ENDEC_JDIS		0x00000001	/* jabber disable */

/* SROM Power Register */
#define	CSR_PNIC_SROMPWR	0x90
#define	PNIC_SROMPWR_MRLE	0x00000001	/* Memory-Read-Line enable */
#define	PNIC_SROMPWR_CB		0x00000002	/* cache boundary alignment
						   burst type; 1 == burst to
						   boundary, 0 == single-cycle
						   to boundary */

/* SROM Control Register */
#define	CSR_PNIC_SROMCTL	0x98
#define	PNIC_SROMCTL_addr	0x0000003f	/* mask of address bits */
/* XXX THESE ARE WRONG ACCORDING TO THE MANUAL! */
#define	PNIC_SROMCTL_READ	0x00000600	/* read command */

/* MII Access Register */
#define	CSR_PNIC_MII		0xa0
#define	PNIC_MII_DATA		0x0000ffff	/* mask of data bits */
#define	PNIC_MII_REG		0x007c0000	/* register mask */
#define	PNIC_MII_REGSHIFT	18
#define	PNIC_MII_PHY		0x0f800000	/* phy mask */
#define	PNIC_MII_PHYSHIFT	23
#define	PNIC_MII_OPCODE		0x30000000	/* opcode mask */
#define	PNIC_MII_RESERVED	0x00020000	/* must be one/must be zero;
						   2 bits are described here */
#define	PNIC_MII_MBO		0x40000000	/* must be one */
#define	PNIC_MII_BUSY		0x80000000	/* MII is busy */

#define	PNIC_MII_WRITE		0x10000000	/* write PHY command */
#define	PNIC_MII_READ		0x20000000	/* read PHY command */

/* NWAY Register */
#define	CSR_PNIC_NWAY		0xb8
#define	PNIC_NWAY_RS		0x00000001	/* reset NWay block */
#define	PNIC_NWAY_PD		0x00000002	/* power down NWay block */
#define	PNIC_NWAY_BX		0x00000004	/* bypass transciever */
#define	PNIC_NWAY_LC		0x00000008	/* AUI low current mode */
#define	PNIC_NWAY_UV		0x00000010	/* low squelch voltage */
#define	PNIC_NWAY_DX		0x00000020	/* disable TP pol. correction */
#define	PNIC_NWAY_TW		0x00000040	/* select TP (0 == AUI) */
#define	PNIC_NWAY_AF		0x00000080	/* AUI full/half step input
						   voltage */
#define	PNIC_NWAY_FD		0x00000100	/* full duplex mode */
#define	PNIC_NWAY_DL		0x00000200	/* disable link integrity
						   test */
#define	PNIC_NWAY_DM		0x00000400	/* disable AUI/TP autodetect */
#define	PNIC_NWAY_100		0x00000800	/* 1 == 100mbps, 0 == 10mbps */
#define	PNIC_NWAY_NW		0x00001000	/* enable NWay block */
#define	PNIC_NWAY_CAP10T	0x00002000	/* adv. 10baseT */
#define	PNIC_NWAY_CAP10TFDX	0x00004000	/* adv. 10baseT-FDX */
#define	PNIC_NWAY_CAP100TXFDX	0x00008000	/* adv. 100baseTX-FDX */
#define	PNIC_NWAY_CAP100TX	0x00010000	/* adv. 100baseTX */
#define	PNIC_NWAY_CAP100T4	0x00020000	/* adv. 100base-T4 */
#define	PNIC_NWAY_RN		0x02000000	/* re-negotiate enable */
#define	PNIC_NWAY_RF		0x04000000	/* remote fault detected */
#define	PNIC_NWAY_LPAR10T	0x08000000	/* link part. 10baseT */
#define	PNIC_NWAY_LPAR10TFDX	0x10000000	/* link part. 10baseT-FDX */
#define	PNIC_NWAY_LPAR100TXFDX	0x20000000	/* link part. 100baseTX-FDX */
#define	PNIC_NWAY_LPAR100TX	0x40000000	/* link part. 100baseTX */
#define	PNIC_NWAY_LPAR100T4	0x80000000	/* link part. 100base-T4 */
#define	PNIC_NWAY_LPAR_MASK	0xf8000000


/*
 * Macronix 98713, 98713A, 98715, 98715A, 98725 registers.
 */

/* CSR12 - 10base-T Status Port (similar to SIASTAT) */
#define	CSR_PMAC_10TSTAT	   TULIP_CSR12
#define	PMAC_10TSTAT_LS100	   0x00000002	/* link status 100TX
						   0 = link up */
#define	PMAC_10TSTAT_LS10	   0x00000004	/* link status 10T
						   0 = link up */
#define	PMAC_10TSTAT_APS	   0x00000008	/* auto polarity status */
#define	PMAC_10TSTAT_TRF	   0x00000800	/* transmit remote fault
						   (21041) */
#define	PMAC_10TSTAT_ANS	   0x00007000	/* autonegotiation state
						   (21041) */
#define	PMAC_10TSTAT_ANS_DIS	   0x00000000	/*     disabled */
#define	PMAC_10TSTAT_ANS_TXDIS	   0x00001000	/*     transmit disabled */
#define	PMAC_10TSTAT_ANS_ABD	   0x00002000	/*     ability detect */
#define	PMAC_10TSTAT_ANS_ACKD	   0x00003000	/*     acknowledge detect */
#define	PMAC_10TSTAT_ANS_ACKC	   0x00004000	/*     complete acknowledge */
#define	PMAC_10TSTAT_ANS_FPLGOOD   0x00005000	/*     FLP link good */
#define	PMAC_10TSTAT_ANS_LINKCHECK 0x00006000	/*     link check */
#define	PMAC_10TSTAT_LPN	   0x00008000	/* link partner negotiable
						   (21041) */
#define	PMAC_10TSTAT_LPC	   0xffff0000	/* link partner code word */

#define	PMAC_10TSTAT_GETLPC(x)	   (((x) & SIASTAT_LPC) >> 16)


/* CSR13 - NWAY Reset Register */
#define	CSR_PMAC_NWAYRESET	TULIP_CSR13
#define	PMAC_NWAYRESET_RESET	0x00000000	/* NWAY reset */


/* CSR14 - 10base-T Control Port */
#define	CSR_PMAC_10TCTL		TULIP_CSR14
#define	PMAC_10TCTL_LBK		0x00000002	/* loopback */
#define	PMAC_10TCTL_PWD10	0x00000004	/* power down 10base-T */
#define	PMAC_10TCTL_HDE		0x00000040	/* half-duplex enable */
#define	PMAC_10TCTL_ANE		0x00000080	/* autonegotiation enable */
#define	PMAC_10TCTL_RSQ		0x00000100	/* receive squelch enable */
#define	PMAC_10TCTL_LTE		0x00001000	/* link test enable */
#define	PMAC_10TCTL_TXH		0x00010000	/* adv. 100tx */
#define	PMAC_10TCTL_TXF		0x00020000	/* adv. 100tx-fdx */
#define	PMAC_10TCTL_T4		0x00040000	/* adv. 100t4 */


/* CSR16 - Test Operation Register (a.k.a. Magic Packet Register) */
#define	CSR_PMAC_TOR		TULIP_CSR16
#define	PMAC_TOR_98713		0x0F370000
#define	PMAC_TOR_98715		0x0B3C0000


/* CSR20 - NWAY Status */
#define	CSR_PMAC_NWAYSTAT	TULIP_CSR20
#define	PMAC_NWAYSTAT_10TXH	0x08000000	/* 10t accepted */
#define	PMAC_NWAYSTAT_10TXF	0x10000000	/* 10t-fdx accepted */
#define	PMAC_NWAYSTAT_100TXH	0x20000000	/* 100tx accepted */
#define	PMAC_NWAYSTAT_100TXF	0x40000000	/* 100tx-fdx accepted */
#define	PMAC_NWAYSTAT_T4	0x80000000	/* 100t4 accepted */


/*
 * Winbond 89C840F registers.
 */

/* CSR12 - Current Receive Descriptor Register */
#define	CSR_WINB_CRDAR		TULIP_CSR12


/* CSR13 - Current Receive Buffer Register */
#define	CSR_WINB_CCRBAR		TULIP_CSR13


/* CSR14 - Multicast Address Register 0 */
#define	CSR_WINB_CMA0		TULIP_CSR14


/* CSR15 - Multicast Address Register 1 */
#define	CSR_WINB_CMA1		TULIP_CSR15


/* CSR16 - Physical Address Register 0 */
#define	CSR_WINB_CPA0		TULIP_CSR16


/* CSR17 - Physical Address Register 1 */
#define	CSR_WINB_CPA1		TULIP_CSR17


/* CSR18 - Boot ROM Size Register */
#define	CSR_WINB_CBRCR		TULIP_CSR18
#define	WINB_CBRCR_NONE		0x00000000	/* no boot rom */
			/*	0x00000001	   also no boot rom */
#define	WINB_CBRCR_8K		0x00000002	/* 8k */
#define	WINB_CBRCR_16K		0x00000003	/* 16k */
#define	WINB_CBRCR_32K		0x00000004	/* 32k */
#define	WINB_CBRCR_64K		0x00000005	/* 64k */
#define	WINB_CBRCR_128K		0x00000006	/* 128k */
#define	WINB_CBRCR_256K		0x00000007


/* CSR19 - Current Transmit Descriptor Register */
#define	CSR_WINB_CTDAR		TULIP_CSR19


/* CSR20 - Current Transmit Buffer Register */
#define	CSR_WINB_CTBAR		TULIP_CSR20

#endif /* _DEV_IC_TULIPREG_H_ */