1 /*        $NetBSD: lancereg.h,v 1.16 2023/06/24 05:35:00 msaitoh Exp $          */
2 
3 /*-
4  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Charles M. Hannum and Jason R. Thorpe.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*-
33  * Copyright (c) 1992, 1993
34  *        The Regents of the University of California.  All rights reserved.
35  *
36  * This code is derived from software contributed to Berkeley by
37  * Ralph Campbell and Rick Macklem.
38  *
39  * Redistribution and use in source and binary forms, with or without
40  * modification, are permitted provided that the following conditions
41  * are met:
42  * 1. Redistributions of source code must retain the above copyright
43  *    notice, this list of conditions and the following disclaimer.
44  * 2. Redistributions in binary form must reproduce the above copyright
45  *    notice, this list of conditions and the following disclaimer in the
46  *    documentation and/or other materials provided with the distribution.
47  * 3. Neither the name of the University nor the names of its contributors
48  *    may be used to endorse or promote products derived from this software
49  *    without specific prior written permission.
50  *
51  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
53  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
54  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
55  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
56  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
57  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
59  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
60  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
61  * SUCH DAMAGE.
62  *
63  *        @(#)if_lereg.h      8.1 (Berkeley) 6/10/93
64  */
65 
66 /*
67  * Register description for the following Advanced Micro Devices
68  * Ethernet chips:
69  *
70  *        - Am7990 Local Area Network Controller for Ethernet (LANCE)
71  *          (and its descendent Am79c90 C-LANCE).
72  *
73  *        - Am79c900 Integrated Local Area Communications Controller (ILACC)
74  *
75  *        - Am79c960 PCnet-ISA Single-Chip Ethernet Controller for ISA
76  *
77  *        - Am79c961 PCnet-ISA+ Jumperless Single-Chip Ethernet Controller
78  *          for ISA
79  *
80  *        - Am79c961A PCnet-ISA II Jumperless Full-Duplex Single-Chip
81  *          Ethernet Controller for ISA
82  *
83  *        - Am79c965A PCnet-32 Single-Chip 32-bit Ethernet Controller
84  *          (for VESA and 486 local busses)
85  *
86  *        - Am79c970 PCnet-PCI Single-Chip Ethernet Controller for PCI
87  *          Local Bus
88  *
89  *        - Am79c970A PCnet-PCI II Single-Chip Full-Duplex Ethernet Controller
90  *          for PCI Local Bus
91  *
92  *        - Am79c971 PCnet-FAST Single-Chip Full-Duplex 10/100Mbps
93  *          Ethernet Controller for PCI Local Bus
94  *
95  *        - Am79c972 PCnet-FAST+ Enhanced 10/100Mbps PCI Ethernet Controller
96  *          with OnNow Support
97  *
98  *        - Am79c973/Am79c975 PCnet-FAST III Single-Chip 10/100Mbps PCI
99  *          Ethernet Controller with Integrated PHY
100  *
101  *        - Am79c978 PCnet-Home Single-Chip 1/10 Mbps PCI Home
102  *          Networking Controller.
103  *
104  * Initialization block, transmit descriptor, and receive descriptor
105  * formats are described in two separate files:
106  *
107  *        16-bit software model (LANCE)           am7990reg.h
108  *
109  *        32-bit software model (ILACC)           am79900reg.h
110  *
111  * Note that the vast majority of the registers described in this file
112  * belong to follow-on chips to the original LANCE.  Only CSR0-CSR3 are
113  * valid on the LANCE.
114  */
115 
116 #define   LEBLEN              1536      /* ETHERMTU + header + CRC */
117 #define   LEMINSIZE 60        /* should be 64 if mode DTCR is set */
118 
119 #define   LE_INITADDR(sc)               (sc->sc_initaddr)
120 #define   LE_RMDADDR(sc, bix) (sc->sc_rmdaddr + sizeof(struct lermd) * (bix))
121 #define   LE_TMDADDR(sc, bix) (sc->sc_tmdaddr + sizeof(struct letmd) * (bix))
122 #define   LE_RBUFADDR(sc, bix)          (sc->sc_rbufaddr[bix])
123 #define   LE_TBUFADDR(sc, bix)          (sc->sc_tbufaddr[bix])
124 
125 /*
126  * The byte count fields in descriptors are in two's complement.
127  * This macro does the conversion for us on unsigned numbers.
128  */
129 #define   LE_BCNT(x)          (~(x) + 1)
130 
131 /*
132  * Control and Status Register addresses
133  */
134 #define   LE_CSR0             0x0000              /* Control and status register */
135 #define   LE_CSR1             0x0001              /* low address of init block */
136 #define   LE_CSR2             0x0002              /* high address of init block */
137 #define   LE_CSR3             0x0003              /* Bus master and control */
138 #define   LE_CSR4             0x0004              /* Test and features control */
139 #define   LE_CSR5             0x0005              /* Extended control and Interrupt 1 */
140 #define   LE_CSR6             0x0006              /* Rx/Tx Descriptor table length */
141 #define   LE_CSR7             0x0007              /* Extended control and interrupt 2 */
142 #define   LE_CSR8             0x0008              /* Logical Address Filter 0 */
143 #define   LE_CSR9             0x0009              /* Logical Address Filter 1 */
144 #define   LE_CSR10  0x000a              /* Logical Address Filter 2 */
145 #define   LE_CSR11  0x000b              /* Logical Address Filter 3 */
146 #define   LE_CSR12  0x000c              /* Physical Address 0 */
147 #define   LE_CSR13  0x000d              /* Physical Address 1 */
148 #define   LE_CSR14  0x000e              /* Physical Address 2 */
149 #define   LE_CSR15  0x000f              /* Mode */
150 #define   LE_CSR16  0x0010              /* Initialization Block addr lower */
151 #define   LE_CSR17  0x0011              /* Initialization Block addr upper */
152 #define   LE_CSR18  0x0012              /* Current Rx Buffer addr lower */
153 #define   LE_CSR19  0x0013              /* Current Rx Buffer addr upper */
154 #define   LE_CSR20  0x0014              /* Current Tx Buffer addr lower */
155 #define   LE_CSR21  0x0015              /* Current Tx Buffer addr upper */
156 #define   LE_CSR22  0x0016              /* Next Rx Buffer addr lower */
157 #define   LE_CSR23  0x0017              /* Next Rx Buffer addr upper */
158 #define   LE_CSR24  0x0018              /* Base addr of Rx ring lower */
159 #define   LE_CSR25  0x0019              /* Base addr of Rx ring upper */
160 #define   LE_CSR26  0x001a              /* Next Rx Desc addr lower */
161 #define   LE_CSR27  0x001b              /* Next Rx Desc addr upper */
162 #define   LE_CSR28  0x001c              /* Current Rx Desc addr lower */
163 #define   LE_CSR29  0x001d              /* Current Rx Desc addr upper */
164 #define   LE_CSR30  0x001e              /* Base addr of Tx ring lower */
165 #define   LE_CSR31  0x001f              /* Base addr of Tx ring upper */
166 #define   LE_CSR32  0x0020              /* Next Tx Desc addr lower */
167 #define   LE_CSR33  0x0021              /* Next Tx Desc addr upper */
168 #define   LE_CSR34  0x0022              /* Current Tx Desc addr lower */
169 #define   LE_CSR35  0x0023              /* Current Tx Desc addr upper */
170 #define   LE_CSR36  0x0024              /* Next Next Rx Desc addr lower */
171 #define   LE_CSR37  0x0025              /* Next Next Rx Desc addr upper */
172 #define   LE_CSR38  0x0026              /* Next Next Tx Desc addr lower */
173 #define   LE_CSR39  0x0027              /* Next Next Tx Desc addr upper */
174 #define   LE_CSR40  0x0028              /* Current Rx Byte Count */
175 #define   LE_CSR41  0x0029              /* Current Rx Status */
176 #define   LE_CSR42  0x002a              /* Current Tx Byte Count */
177 #define   LE_CSR43  0x002b              /* Current Tx Status */
178 #define   LE_CSR44  0x002c              /* Next Rx Byte Count */
179 #define   LE_CSR45  0x002d              /* Next Rx Status */
180 #define   LE_CSR46  0x002e              /* Tx Poll Time Counter */
181 #define   LE_CSR47  0x002f              /* Tx Polling Interval */
182 #define   LE_CSR48  0x0030              /* Rx Poll Time Counter */
183 #define   LE_CSR49  0x0031              /* Rx Polling Interval */
184 #define   LE_CSR58  0x003a              /* Software Style */
185 #define   LE_CSR60  0x003c              /* Previous Tx Desc addr lower */
186 #define   LE_CSR61  0x003d              /* Previous Tx Desc addr upper */
187 #define   LE_CSR62  0x003e              /* Previous Tx Byte Count */
188 #define   LE_CSR63  0x003f              /* Previous Tx Status */
189 #define   LE_CSR64  0x0040              /* Next Tx Buffer addr lower */
190 #define   LE_CSR65  0x0041              /* Next Tx Buffer addr upper */
191 #define   LE_CSR66  0x0042              /* Next Tx Byte Count */
192 #define   LE_CSR67  0x0043              /* Next Tx Status */
193 #define   LE_CSR72  0x0048              /* Receive Ring Counter */
194 #define   LE_CSR74  0x004a              /* Transmit Ring Counter */
195 #define   LE_CSR76  0x004c              /* Receive Ring Length */
196 #define   LE_CSR78  0x004e              /* Transmit Ring Length */
197 #define   LE_CSR80  0x0050              /* DMA Transfer Counter and FIFO
198                                                      Threshold Control */
199 #define   LE_CSR82  0x0052              /* Tx Desc addr Pointer lower */
200 #define   LE_CSR84  0x0054              /* DMA addr register lower */
201 #define   LE_CSR85  0x0055              /* DMA addr register upper */
202 #define   LE_CSR86  0x0056              /* Buffer Byte Counter */
203 #define   LE_CSR88  0x0058              /* Chip ID Register lower */
204 #define   LE_CSR89  0x0059              /* Chip ID Register upper */
205 #define   LE_CSR92  0x005c              /* Ring Length Conversion */
206 #define   LE_CSR100 0x0064              /* Bus Timeout */
207 #define   LE_CSR112 0x0070              /* Missed Frame Count */
208 #define   LE_CSR114 0x0072              /* Receive Collision Count */
209 #define   LE_CSR116 0x0074              /* OnNow Power Mode Register */
210 #define   LE_CSR122 0x007a              /* Advanced Feature Control */
211 #define   LE_CSR124 0x007c              /* Test Register 1 */
212 #define   LE_CSR125 0x007d              /* MAC Enhanced Configuration Control */
213 
214 /*
215  * Bus Configuration Register addresses
216  */
217 #define   LE_BCR0             0x0000              /* Master Mode Read Active */
218 #define   LE_BCR1             0x0001              /* Master Mode Write Active */
219 #define   LE_BCR2             0x0002              /* Misc. Configuration */
220 #define   LE_BCR4             0x0004              /* LED0 Status */
221 #define   LE_BCR5             0x0005              /* LED1 Status */
222 #define   LE_BCR6             0x0006              /* LED2 Status */
223 #define   LE_BCR7             0x0007              /* LED3 Status */
224 #define   LE_BCR9             0x0009              /* Full-duplex Control */
225 #define   LE_BCR16  0x0010              /* I/O Base Address lower */
226 #define   LE_BCR17  0x0011              /* I/O Base Address upper */
227 #define   LE_BCR18  0x0012              /* Burst and Bus Control Register */
228 #define   LE_BCR19  0x0013              /* EEPROM Control and Status */
229 #define   LE_BCR20  0x0014              /* Software Style */
230 #define   LE_BCR22  0x0016              /* PCI Latency Register */
231 #define   LE_BCR23  0x0017              /* PCI Subsystem Vendor ID */
232 #define   LE_BCR24  0x0018              /* PCI Subsystem ID */
233 #define   LE_BCR25  0x0019              /* SRAM Size Register */
234 #define   LE_BCR26  0x001a              /* SRAM Boundary Register */
235 #define   LE_BCR27  0x001b              /* SRAM Interface Control Register */
236 #define   LE_BCR28  0x001c              /* Exp. Bus Port Addr lower */
237 #define   LE_BCR29  0x001d              /* Exp. Bus Port Addr upper */
238 #define   LE_BCR30  0x001e              /* Exp. Bus Data Port */
239 #define   LE_BCR31  0x001f              /* Software Timer Register */
240 #define   LE_BCR32  0x0020              /* PHY Control and Status Register */
241 #define   LE_BCR33  0x0021              /* PHY Address Register */
242 #define   LE_BCR34  0x0022              /* PHY Management Data Register */
243 #define   LE_BCR35  0x0023              /* PCI Vendor ID Register */
244 #define   LE_BCR36  0x0024              /* PCI Power Management Cap. Alias */
245 #define   LE_BCR37  0x0025              /* PCI DATA0 Alias */
246 #define   LE_BCR38  0x0026              /* PCI DATA1 Alias */
247 #define   LE_BCR39  0x0027              /* PCI DATA2 Alias */
248 #define   LE_BCR40  0x0028              /* PCI DATA3 Alias */
249 #define   LE_BCR41  0x0029              /* PCI DATA4 Alias */
250 #define   LE_BCR42  0x002a              /* PCI DATA5 Alias */
251 #define   LE_BCR43  0x002b              /* PCI DATA6 Alias */
252 #define   LE_BCR44  0x002c              /* PCI DATA7 Alias */
253 #define   LE_BCR45  0x002d              /* OnNow Pattern Matching 1 */
254 #define   LE_BCR46  0x002e              /* OnNow Pattern Matching 2 */
255 #define   LE_BCR47  0x002f              /* OnNow Pattern Matching 3 */
256 #define   LE_BCR48  0x0030              /* LED4 Status */
257 #define   LE_BCR49  0x0031              /* PHY Select */
258 
259 /* Control and status register 0 (csr0) */
260 #define   LE_C0_ERR 0x8000              /* error summary */
261 #define   LE_C0_BABL          0x4000              /* transmitter timeout error */
262 #define   LE_C0_CERR          0x2000              /* collision */
263 #define   LE_C0_MISS          0x1000              /* missed a packet */
264 #define   LE_C0_MERR          0x0800              /* memory error */
265 #define   LE_C0_RINT          0x0400              /* receiver interrupt */
266 #define   LE_C0_TINT          0x0200              /* transmitter interrupt */
267 #define   LE_C0_IDON          0x0100              /* initialization done */
268 #define   LE_C0_INTR          0x0080              /* interrupt condition */
269 #define   LE_C0_INEA          0x0040              /* interrupt enable */
270 #define   LE_C0_RXON          0x0020              /* receiver on */
271 #define   LE_C0_TXON          0x0010              /* transmitter on */
272 #define   LE_C0_TDMD          0x0008              /* transmit demand */
273 #define   LE_C0_STOP          0x0004              /* disable all external activity */
274 #define   LE_C0_STRT          0x0002              /* enable external activity */
275 #define   LE_C0_INIT          0x0001              /* begin initialization */
276 
277 #define   LE_C0_BITS \
278     "\20\20ERR\17BABL\16CERR\15MISS\14MERR\13RINT\
279 \12TINT\11IDON\10INTR\07INEA\06RXON\05TXON\04TDMD\03STOP\02STRT\01INIT"
280 
281 /* Control and status register 3 (csr3) */
282 #define   LE_C3_BABLM         0x4000              /* babble mask */
283 #define   LE_C3_MISSM         0x1000              /* missed frame mask */
284 #define   LE_C3_MERRM         0x0800              /* memory error mask */
285 #define   LE_C3_RINTM         0x0400              /* receive interrupt mask */
286 #define   LE_C3_TINTM         0x0200              /* transmit interrupt mask */
287 #define   LE_C3_IDONM         0x0100              /* initialization done mask */
288 #define   LE_C3_DXSUFLO       0x0040              /* disable tx stop on underflow */
289 #define   LE_C3_LAPPEN        0x0020              /* look ahead packet processing enbl */
290 #define   LE_C3_DXMT2PD       0x0010              /* disable tx two part deferral */
291 #define   LE_C3_EMBA          0x0008              /* enable modified backoff algorithm */
292 #define   LE_C3_BSWP          0x0004              /* byte swap */
293 #define   LE_C3_ACON          0x0002              /* ALE control, eh? */
294 #define   LE_C3_BCON          0x0001              /* byte control */
295 
296 /* Control and status register 4 (csr4) */
297 #define   LE_C4_EN124         0x8000              /* enable CSR124 */
298 #define   LE_C4_DMAPLUS       0x4000              /* always set (PCnet-PCI) */
299 #define   LE_C4_TIMER         0x2000              /* enable bus activity timer */
300 #define   LE_C4_TXDPOLL       0x1000              /* disable transmit polling */
301 #define   LE_C4_APAD_XMT      0x0800              /* auto pad transmit */
302 #define   LE_C4_ASTRP_RCV     0x0400              /* auto strip receive */
303 #define   LE_C4_MFCO          0x0200              /* missed frame counter overflow */
304 #define   LE_C4_MFCOM         0x0100              /* missed frame counter overflow mask */
305 #define   LE_C4_UINTCMD       0x0080              /* user interrupt command */
306 #define   LE_C4_UINT          0x0040              /* user interrupt */
307 #define   LE_C4_RCVCCO        0x0020              /* receive collision counter overflow */
308 #define   LE_C4_RCVCCOM       0x0010              /* receive collision counter overflow
309                                                      mask */
310 #define   LE_C4_TXSTRT        0x0008              /* transmit start status */
311 #define   LE_C4_TXSTRTM       0x0004              /* transmit start mask */
312 
313 /* Control and status register 5 (csr5) */
314 #define   LE_C5_TOKINTD       0x8000              /* transmit ok interrupt disable */
315 #define   LE_C5_LTINTEN       0x4000              /* last transmit interrupt enable */
316 #define   LE_C5_SINT          0x0800              /* system interrupt */
317 #define   LE_C5_SINTE         0x0400              /* system interrupt enable */
318 #define   LE_C5_EXDINT        0x0080              /* excessive deferral interrupt */
319 #define   LE_C5_EXDINTE       0x0040              /* excessive deferral interrupt enbl */
320 #define   LE_C5_MPPLBA        0x0020              /* magic packet physical logical
321                                                      broadcast accept */
322 #define   LE_C5_MPINT         0x0010              /* magic packet interrupt */
323 #define   LE_C5_MPINTE        0x0008              /* magic packet interrupt enable */
324 #define   LE_C5_MPEN          0x0004              /* magic packet enable */
325 #define   LE_C5_MPMODE        0x0002              /* magic packet mode */
326 #define   LE_C5_SPND          0x0001              /* suspend */
327 
328 /* Control and status register 6 (csr6) */
329 #define   LE_C6_TLEN          0xf000              /* TLEN from init block */
330 #define   LE_C6_RLEN          0x0f00              /* RLEN from init block */
331 
332 /* Control and status register 7 (csr7) */
333 #define   LE_C7_FASTSPNDE     0x8000              /* fast suspend enable */
334 #define   LE_C7_RDMD          0x2000              /* receive demand */
335 #define   LE_C7_RDXPOLL       0x1000              /* receive disable polling */
336 #define   LE_C7_STINT         0x0800              /* software timer interrupt */
337 #define   LE_C7_STINTE        0x0400              /* software timer interrupt enable */
338 #define   LE_C7_MREINT        0x0200              /* PHY management read error intr */
339 #define   LE_C7_MREINTE       0x0100              /* PHY management read error intr
340                                                      enable */
341 #define   LE_C7_MAPINT        0x0080              /* PHY management auto-poll intr */
342 #define   LE_C7_MAPINTE       0x0040              /* PHY management auto-poll intr
343                                                      enable */
344 #define   LE_C7_MCCINT        0x0020              /* PHY management command complete
345                                                      interrupt */
346 #define   LE_C7_MCCINTE       0x0010              /* PHY management command complete
347                                                      interrupt enable */
348 #define   LE_C7_MCCIINT       0x0008              /* PHY management command complete
349                                                      internal interrupt */
350 #define   LE_C7_MCCIINTE      0x0004              /* PHY management command complete
351                                                      internal interrupt enable */
352 #define   LE_C7_MIIPDTINT     0x0002              /* PHY management detect transition
353                                                      interrupt */
354 #define   LE_C7_MIIPDTINTE 0x0001                 /* PHY management detect transition
355                                                      interrupt enable */
356 
357 /* Control and status register 15 (csr15) */
358 #define   LE_C15_PROM         0x8000              /* promiscuous mode */
359 #define   LE_C15_DRCVBC       0x4000              /* disable Rx of broadcast */
360 #define   LE_C15_DRCVPA       0x2000              /* disable Rx of physical address */
361 #define   LE_C15_DLNKTST      0x1000              /* disable link status */
362 #define   LE_C15_DAPC         0x0800              /* disable auto-polarity correction */
363 #define   LE_C15_MENDECL      0x0400              /* MENDEC Loopback mode */
364 #define   LE_C15_LRT          0x0200              /* low receive threshold (TMAU) */
365 #define   LE_C15_TSEL         0x0200              /* transmit mode select (AUI) */
366 #define   LE_C15_PORTSEL(x) ((x) << 7)  /* port select */
367 #define   LE_C15_INTL         0x0040              /* internal loopback */
368 #define   LE_C15_DRTY         0x0020              /* disable retry */
369 #define   LE_C15_FCOLL        0x0010              /* force collision */
370 #define   LE_C15_DXMTFCS      0x0008              /* disable Tx FCS (ADD_FCS overrides) */
371 #define   LE_C15_LOOP         0x0004              /* loopback enable */
372 #define   LE_C15_DTX          0x0002              /* disable transmit */
373 #define   LE_C15_DRX          0x0001              /* disable receiver */
374 
375 #define   PORTSEL_AUI         0
376 #define   PORTSEL_10T         1
377 #define   PORTSEL_GPSI        2
378 #define   PORTSEL_MII         3
379 #define   PORTSEL_MASK        3
380 
381 /* control and status register 80 (csr80) */
382 #define   LE_C80_RCVFW(x)     ((x) << 12)         /* Receive FIFO Watermark */
383 #define   LE_C80_RCVFW_MAX 3
384 #define   LE_C80_XMTSP(x)     ((x) << 10)         /* Transmit Start Point */
385 #define   LE_C80_XMTSP_MAX 3
386 #define   LE_C80_XMTFW(x)     ((x) << 8)          /* Transmit FIFO Watermark */
387 #define   LE_C80_XMTFW_MAX 3
388 #define   LE_C80_DMATC        0x00ff              /* DMA transfer counter */
389 
390 /* control and status register 116 (csr116) */
391 #define   LE_C116_PME_EN_OVR 0x0400     /* PME_EN overwrite */
392 #define   LE_C116_LCDET          0x0200 /* link change detected */
393 #define   LE_C116_LCMODE         0x0100 /* link change wakeup mode */
394 #define   LE_C116_PMAT           0x0080 /* pattern matched */
395 #define   LE_C116_EMPPLBA        0x0040 /* magic packet physical logical
396                                                      broadcast accept */
397 #define   LE_C116_MPMAT          0x0020 /* magic packet match */
398 #define   LE_C116_MPPEN          0x0010 /* magic packet pin enable */
399 #define   LE_C116_RST_POL        0x0001 /* PHY_RST pin polarity */
400 
401 /* control and status register 122 (csr122) */
402 #define   LE_C122_RCVALGN     0x0001              /* receive packet align */
403 
404 /* control and status register 124 (csr124) */
405 #define   LE_C124_RPA         0x0008              /* runt packet accept */
406 
407 /* control and status register 125 (csr125) */
408 #define   LE_C125_IPG         0xff00              /* inter-packet gap */
409 #define   LE_C125_IFS1        0x00ff              /* inter-frame spacing part 1 */
410 
411 /* bus configuration register 0 (bcr0) */
412 #define   LE_B0_MSRDA         0xffff              /* reserved locations */
413 
414 /* bus configuration register 1 (bcr1) */
415 #define   LE_B1_MSWRA         0xffff              /* reserved locations */
416 
417 /* bus configuration register 2 (bcr2) */
418 #define   LE_B2_PHYSSELEN     0x2000              /* enable writes to BCR18[4:3] */
419 #define   LE_B2_LEDPE         0x1000              /* LED program enable */
420 #define   LE_B2_APROMWE       0x0100              /* Address PROM Write Enable */
421 #define   LE_B2_INTLEVEL      0x0080              /* 1 == edge triggered */
422 #define   LE_B2_DXCVRCTL      0x0020              /* DXCVR control */
423 #define   LE_B2_DXCVRPOL      0x0010              /* DXCVR polarity */
424 #define   LE_B2_EADISEL       0x0008              /* EADI select */
425 #define   LE_B2_AWAKE         0x0004              /* power saving mode select */
426 #define   LE_B2_ASEL          0x0002              /* auto-select PORTSEL */
427 #define   LE_B2_XMAUSEL       0x0001              /* reserved location */
428 
429 /* bus configuration register 4 (bcr4) */
430 /* bus configuration register 5 (bcr5) */
431 /* bus configuration register 6 (bcr6) */
432 /* bus configuration register 7 (bcr7) */
433 /* bus configuration register 48 (bcr48) */
434 #define   LE_B4_LEDOUT        0x8000              /* LED output active */
435 #define   LE_B4_LEDPOL        0x4000              /* LED polarity */
436 #define   LE_B4_LEDDIS        0x2000              /* LED disable */
437 #define   LE_B4_100E          0x1000              /* 100Mb/s enable */
438 #define   LE_B4_MPSE          0x0200              /* magic packet status enable */
439 #define   LE_B4_FDLSE         0x0100              /* full-duplex link status enable */
440 #define   LE_B4_PSE 0x0080              /* pulse stretcher enable */
441 #define   LE_B4_LNKSE         0x0040              /* link status enable */
442 #define   LE_B4_RCVME         0x0020              /* receive match status enable */
443 #define   LE_B4_XMTE          0x0010              /* transmit status enable */
444 #define   LE_B4_POWER         0x0008              /* power enable */
445 #define   LE_B4_RCVE          0x0004              /* receive status enable */
446 #define   LE_B4_SPEED         0x0002              /* high speed enable */
447 #define   LE_B4_COLE          0x0001              /* collision status enable */
448 
449 /* bus configuration register 9 (bcr9) */
450 #define   LE_B9_FDRPAD        0x0004              /* full-duplex runt packet accept
451                                                      disable */
452 #define   LE_B9_AUIFD         0x0002              /* AUI full-duplex */
453 #define   LE_B9_FDEN          0x0001              /* full-duplex enable */
454 
455 /* bus configuration register 18 (bcr18) */
456 #define   LE_B18_ROMTMG       0xf000              /* expansion rom timing */
457 #define   LE_B18_NOUFLO       0x0800              /* no underflow on transmit */
458 #define   LE_B18_MEMCMD       0x0200              /* memory read multiple enable */
459 #define   LE_B18_EXTREQ       0x0100              /* extended request */
460 #define   LE_B18_DWIO         0x0080              /* double-word I/O */
461 #define   LE_B18_BREADE       0x0040              /* burst read enable */
462 #define   LE_B18_BWRITE       0x0020              /* burst write enable */
463 #define   LE_B18_PHYSEL1      0x0010              /* PHYSEL 1 */
464 #define   LE_B18_PHYSEL0      0x0008              /* PHYSEL 0 */
465                                                   /*        00        ex ROM/Flash        */
466                                                   /*        01        EADI/MII snoop      */
467                                                   /*        10        reserved  */
468                                                   /*        11        reserved  */
469 #define   LE_B18_LINBC        0x0007              /* reserved locations */
470 
471 /* bus configuration register 19 (bcr19) */
472 #define   LE_B19_PVALID       0x8000              /* EEPROM status valid */
473 #define   LE_B19_PREAD        0x4000              /* EEPROM read command */
474 #define   LE_B19_EEDET        0x2000              /* EEPROM detect */
475 #define   LE_B19_EEN          0x0010              /* EEPROM port enable */
476 #define   LE_B19_ECS          0x0004              /* EEPROM chip select */
477 #define   LE_B19_ESK          0x0002              /* EEPROM serial clock */
478 #define   LE_B19_EDI          0x0001              /* EEPROM data in */
479 #define   LE_B19_EDO          0x0001              /* EEPROM data out */
480 
481 /* bus configuration register 20 (bcr20) */
482 #define   LE_B20_APERREN      0x0400              /* Advanced parity error handling */
483 #define   LE_B20_CSRPCNET     0x0200              /* PCnet-style CSRs (0 = ILACC) */
484 #define   LE_B20_SSIZE32      0x0100              /* Software Size 32-bit */
485 #define   LE_B20_SSTYLE       0x0007              /* Software Style */
486 #define   LE_B20_SSTYLE_LANCE 0         /* LANCE/PCnet-ISA (16-bit) */
487 #define   LE_B20_SSTYPE_ILACC 1         /* ILACC (32-bit) */
488 #define   LE_B20_SSTYLE_PCNETPCI2       2         /* PCnet-PCI (32-bit) */
489 #define   LE_B20_SSTYLE_PCNETPCI3       3         /* PCnet-PCI II (32-bit) */
490 
491 /* bus configuration register 25 (bcr25) */
492 #define   LE_B25_SRAM_SIZE  0x00ff      /* SRAM size */
493 
494 /* bus configuration register 26 (bcr26) */
495 #define   LE_B26_SRAM_BND       0x00ff  /* SRAM boundary */
496 
497 /* bus configuration register 27 (bcr27) */
498 #define   LE_B27_PTRTST       0x8000              /* reserved for manuf. tests */
499 #define   LE_B27_LOLATRX      0x4000              /* low latency receive */
500 #define   LE_B27_EBCS         0x0038              /* expansion bus clock source */
501                                                   /*        000       CLK pin             */
502                                                   /*        001       time base clock     */
503                                                   /*        010       EBCLK pin */
504                                                   /*        011       reserved  */
505                                                   /*        1xx       reserved  */
506 #define   LE_B27_CLK_FAC      0x0007              /* clock factor */
507                                                   /*        000       1                   */
508                                                   /*        001       1/2                 */
509                                                   /*        010       reserved  */
510                                                   /*        011       1/4                 */
511                                                   /*        1xx       reserved  */
512 
513 /* bus configuration register 28 (bcr28) */
514 #define   LE_B28_EADDRL       0xffff              /* expansion port address lower */
515 
516 /* bus configuration register 29 (bcr29) */
517 #define   LE_B29_FLASH        0x8000              /* flash access */
518 #define   LE_B29_LAAINC       0x4000              /* lower address auto increment */
519 #define   LE_B29_EPADDRU      0x0007              /* expansion port address upper */
520 
521 /* bus configuration register 30 (bcr30) */
522 #define   LE_B30_EBDATA       0xffff              /* expansion bus data port */
523 
524 /* bus configuration register 31 (bcr31) */
525 #define   LE_B31_STVAL        0xffff              /* software timer value */
526 
527 /* bus configuration register 32 (bcr32) */
528 #define   LE_B32_ANTST        0x8000              /* reserved for manuf. tests */
529 #define   LE_B32_MIIPD        0x4000              /* MII PHY Detect (manuf. tests) */
530 #define   LE_B32_FMDC         0x3000              /* fast management data clock */
531 #define   LE_B32_APEP         0x0800              /* auto-poll PHY */
532 #define   LE_B32_APDW         0x0700              /* auto-poll dwell time */
533 #define   LE_B32_DANAS        0x0080              /* disable autonegotiation */
534 #define   LE_B32_XPHYRST      0x0040              /* PHY reset */
535 #define   LE_B32_XPHYANE      0x0020              /* PHY autonegotiation enable */
536 #define   LE_B32_XPHYFD       0x0010              /* PHY full-duplex */
537 #define   LE_B32_XPHYSP       0x0008              /* PHY speed */
538 #define   LE_B32_MIIILP       0x0002              /* MII internal loopback */
539 
540 /* bus configuration register 33 (bcr33) */
541 #define   LE_B33_SHADOW       0x8000              /* shadow enable */
542 #define   LE_B33_MII_SEL      0x4000              /* MII selected */
543 #define   LE_B33_ACOMP        0x2000              /* internal PHY autonegotiation comp */
544 #define   LE_B33_LINK         0x1000              /* link status */
545 #define   LE_B33_FDX          0x0800              /* full-duplex */
546 #define   LE_B33_SPEED        0x0400              /* 1 == high speed */
547 #define   LE_B33_PHYAD        0x03e0              /* PHY address */
548 #define   PHYAD_SHIFT         5
549 #define   LE_B33_REGAD        0x001f              /* register address */
550 
551 /* bus configuration register 34 (bcr34) */
552 #define   LE_B34_MIIMD        0xffff              /* MII data */
553 
554 /* bus configuration register 49 (bcr49) */
555 #define   LE_B49_PCNET        0x8000              /* PCnet mode - Must Be One */
556 #define   LE_B49_PHYSEL_D     0x0300              /* PHY_SEL_Default */
557 #define   LE_B49_PHYSEL_L     0x0010              /* PHY_SEL_Lock */
558 #define   LE_B49_PHYSEL       0x0003              /* PHYSEL */
559                                                   /*        00        10baseT PHY         */
560                                                   /*        01        HomePNA PYY         */
561                                                   /*        10        external PHY        */
562                                                   /*        11        reserved  */
563 
564 /* Initialization block (mode) */
565 #define   LE_MODE_PROM        0x8000              /* promiscuous mode */
566 /*                            0x7f80                 reserved, must be zero */
567 /* 0x4000 - 0x0080 are not available on LANCE 7990 */
568 #define   LE_MODE_DRCVBC      0x4000              /* disable receive broadcast */
569 #define   LE_MODE_DRCVPA      0x2000              /* disable physical address detection */
570 #define   LE_MODE_DLNKTST     0x1000              /* disable link status */
571 #define   LE_MODE_DAPC        0x0800              /* disable automatic polarity correction */
572 #define   LE_MODE_MENDECL     0x0400              /* MENDEC loopback mode */
573 #define   LE_MODE_LRTTSEL     0x0200              /* lower receive threshold /
574                                                      transmit mode selection */
575 #define   LE_MODE_PSEL1       0x0100              /* port selection bit1 */
576 #define   LE_MODE_PSEL0       0x0080              /* port selection bit0 */
577 #define   LE_MODE_INTL        0x0040              /* internal loopback */
578 #define   LE_MODE_DRTY        0x0020              /* disable retry */
579 #define   LE_MODE_COLL        0x0010              /* force a collision */
580 #define   LE_MODE_DTCR        0x0008              /* disable transmit CRC */
581 #define   LE_MODE_LOOP        0x0004              /* loopback mode */
582 #define   LE_MODE_DTX         0x0002              /* disable transmitter */
583 #define   LE_MODE_DRX         0x0001              /* disable receiver */
584 #define   LE_MODE_NORMAL      0                   /* none of the above */
585 
586 /*
587  * Chip ID (CSR88 IDL, CSR89 IDU) values for various AMD PCnet parts.
588  */
589 #define   CHIPID_MANFID(x)    (((x) >> 1) & 0x3ff)
590 #define   CHIPID_PARTID(x)    (((x) >> 12) & 0xffff)
591 #define   CHIPID_VER(x)                 (((x) >> 28) & 0x7)
592 
593 #define   PARTID_Am79c960               0x0003
594 #define   PARTID_Am79c961               0x2260
595 #define   PARTID_Am79c961A    0x2261
596 #define   PARTID_Am79c965               0x2430    /* yes, these... */
597 #define   PARTID_Am79c970               0x2430    /* ...are the same */
598 #define   PARTID_Am79c970A    0x2621
599 #define   PARTID_Am79c971               0x2623
600 #define   PARTID_Am79c972               0x2624
601 #define   PARTID_Am79c973               0x2625
602 #define   PARTID_Am79c978               0x2626
603 #define   PARTID_Am79c975               0x2627
604 #define   PARTID_Am79c976               0x2628
605