FreeBSD/Linux Kernel Cross Reference
sys/dev/xe/if_xereg.h
1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1998, 1999 Scott Mitchell
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $Id: if_xereg.h,v 1.5 1999/05/20 21:53:58 scott Exp $
29 * $FreeBSD$
30 */
31 #ifndef DEV_XE_IF_XEREG_H
32 #define DEV_XE_IF_XEREG_H
33
34 /*
35 * Register definitions for Xircom PCMCIA Ethernet controllers, based on
36 * Rev. B of the "Dingo" 10/100 controller used in Xircom CEM56 and RealPort
37 * Ethernet/modem cards. The Dingo can be configured to be register
38 * compatible with the "Mohawk" 10/100 controller used in Xircom CE3 cards
39 * (also some Intel and Compaq OEM versions of the CE3). The older 10Mbps CE2
40 * cards seem to use earlier revisions of the same device. Some registers and
41 * bits below are marked 'CE2 only'; these are used by Werner Koch's xirc2ps
42 * driver that was originally for the CE2 but, according to the spec, aren't
43 * present on the Dingo. They often seem to relate to operation on coax
44 * cables, which Mohawk can do in theory (it has the SSI interface) so they
45 * _might_ also work on Mohawk. I've also noted the few registers that are
46 * specific to Dingo.
47 *
48 * As far as I can tell, the Dingo is basically a Mohawk device with a few
49 * registers and support for a second PCMCIA function (the modem) added. In
50 * Dingo mode the SSI (non-MII) PHY interface of the Mohawk is not available.
51 * The CE2 chip is most likely a Mohawk without the MII and definitely with a
52 * slightly different register set.
53 *
54 * In all cases, the controller uses a paged model of register access. The
55 * first eight registers are always the same, the function of the second eight
56 * is selected by the value in the Page Register (reg 0x01).
57 *
58 * References:
59 * 1. Dingo External Reference Specification, Revision B. Xircom Inc.,
60 * Thousand Oaks, California. August 1998. Available under licence from
61 * Xircom, http://www.xircom.com/
62 * 2. ML6692 100BASE-TX Physical Layer with MII specification. MicroLinear
63 * Corp, San Jose, California. May 1997. Available for download from
64 * http://www.microlinear.com/
65 * 3. DP83840 10/100 Mb/s Ethernet Physical Layer specification. National
66 * Semiconductor Corp., Arlington, Texas. March 1997. Available for
67 * download from http://www.ns.com/
68 * 4. Werner Koch's xirc2ps driver for Linux, for all the CE2 and CE3 frobs
69 * that aren't documented in the Xircom spec. Available for download from
70 * http://www.d.shuttle.de/isil/xircom/xirc2ps.html
71 */
72
73 /*******************
74 * PCMCIA registers
75 *******************/
76
77 /*
78 * These are probably Dingo-specific, but you won't need them unless you have
79 * a CEM card that needs a bit of hackery to get the Ethernet function to
80 * operate. All addresses are in card attribute space.
81 */
82 #define DINGO_CIS 0x0000 /* Start of CIS tuples */
83 #define DINGO_ETH 0x0800 /* Ethernet configuration registers */
84 #define DINGO_COR 0x0820 /* Dingo configuration option registers */
85 #define DINGO_2ND 0x0840 /* 2nd function configuration registers */
86
87
88 /*
89 * Ethernet configuration registers
90 */
91 #define DINGO_ECOR (DINGO_ETH+0) /* Ethernet Configuration Option Register */
92 #define DINGO_ECSR (DINGO_ETH+2) /* Ethernet Configuration Status Register */
93 #define DINGO_EBAR0 (DINGO_ETH+10) /* Ethernet Base Address Register bits 7:4 (3:0 always 0) */
94 #define DINGO_EBAR1 (DINGO_ETH+12) /* Ethernet Base Address Register bits 15:8 */
95
96 /* DINGO_ECOR bits */
97 #define DINGO_ECOR_ETH_ENABLE 0x01 /* 1 = Enable Ethernet part of adapter */
98 #define DINGO_ECOR_IOB_ENABLE 0x02 /* 1 = Enable EBAR, else use INDEX bits */
99 #define DINGO_ECOR_INT_ENABLE 0x04 /* 1 = Enable Ethernet interrupts */
100 #define DINGO_ECOR_IOB_INDEX 0x18 /* 00 = 0x300; 01 = 0x310; 10 = 0x320; 11 = no IO base */
101 #define DINGO_ECOR_IOB_SHIFT 0x03
102 #define DINGO_ECOR_IRQ_STSCHG 0x20 /* 1 = Route interrupts to -STSCHG pin, else use -INT pin */
103 #define DINGO_ECOR_IRQ_LEVEL 0x40 /* 1 = Level-triggered interrupts, else edge-triggered */
104 #define DINGO_ECOR_SRESET 0x80 /* 1 = Soft reset Ethernet adpater. Must write to 0 */
105
106 /* DINGO_ECSR bits */
107 #define DINGO_ECSR_INT_ACK 0x01 /* 1 = Host must acknowledge interrupts (Clear ECSR_INT bit) */
108 #define DINGO_ECSR_INT 0x02 /* 1 = Interrupt service requested */
109 #define DINGO_ECSR_POWER_DOWN 0x04 /* 1 = Power down Ethernet adapter */
110
111 /*
112 * EBAR0/EBAR1 set the I/O base address of the Ethernet adapter when
113 * ECOR_IOB_ENABLE is set. 12 significant bits.
114 */
115
116
117 /*
118 * Dingo configuration registers
119 */
120 #define DINGO_DCOR0 (DINGO_COR+0) /* Dingo Configuration Options Register 0 */
121 #define DINGO_DCOR1 (DINGO_COR+2) /* Dingo Configuration Options Register 1 */
122 #define DINGO_DCOR2 (DINGO_COR+4) /* Dingo Configuration Options Register 2 */
123 #define DINGO_DCOR3 (DINGO_COR+6) /* Dingo Configuration Options Register 3 */
124 #define DINGO_DCOR4 (DINGO_COR+8) /* Dingo Configuration Options Register 4 */
125
126 /* DINGO_DCOR0 bits */
127 #define DINGO_DCOR0_SF_INT 0x01 /* 1 = Enable 2ndF interrupts (alternate to SFCOR:2) */
128 #define DINGO_DCOR0_DECODE 0x04 /* 1 = Decode 2ndF interrupts in Dingo, else in 2ndF */
129 #define DINGO_DCOR0_BUS 0x08 /* 1 = 2ndF bus is ISA, else PCMCIA */
130 #define DINGO_DCOR0_LED3_POWER 0x10 /* 1 = Drive LED3 line from SFCSR:2 */
131 #define DINGO_DCOR0_LED3_RESET 0x20 /* 1 = Drive LED3 line from SFCOR:7 */
132 #define DINGO_DCOR0_MR_POWER 0x40 /* 1 = Drive MRESET line from SFCSR:2 */
133 #define DINGO_DCOR0_MR_RESET 0x80 /* 1 = Drive MRESET line from SFCOR:7 */
134
135 /* DINGO_DCOR1 bits */
136 #define DINGO_DCOR1_INT_STSCHG 0x01 /* 1 = Route 2ndF interrupts to -STSCHG (alternate to SFCOR:5) */
137 #define DINGO_DCOR1_MSTSCHG 0x02 /* 1 = Route 2ndF -MSTSCHG line to -STSCHG */
138 #define DINGO_DCOR1_EEDIO 0x04 /* 1 = Use EEDIO pin as data line 6 to 2ndF */
139 #define DINGO_DCOR1_INT_LEVEL 0x08 /* 1 = Force level-triggered interrupts from 2ndF */
140 #define DINGO_DCOR1_SHADOW_CSR 0x10 /* Reserved, always write 0 */
141 #define DINGO_DCOR1_SHADOW_IOB 0x20 /* Reserved, always write 0 */
142 #define DINGO_DCOR1_CSR_WAIT 0xC0 /* Reserved, always write 0 */
143 #define DINGO_DCOR1_CSR_SHIFT 0x06
144
145 /* DINGO_DCOR2 bits */
146 #define DINGO_DCOR2_SHM_BASE 0x0f /* Bits 15-12 of Ethernet shared memory window */
147 #define DINGO_DCOR2_SHM_SHIFT 0x00
148 #define DINGO_DCOR2_SHADOW_COR 0x10 /* Reserved, always write 0 */
149
150 /*
151 * DCOR3/DCOR4 configure Dingo to assert -IOIS16 on any access to each pair of
152 * ports in the range SFIOB+0 .. SFIOB+31. Each pair can be set individually,
153 * eg. DCOR3:0 enables this function on ports SFIOB+0 and SFIOB+1.
154 */
155
156
157 /*
158 * Second function configuration registers
159 */
160 #define DINGO_SFCOR (DINGO_2ND+0) /* 2nd Function Configuration Option Register */
161 #define DINGO_SFCSR (DINGO_2ND+2) /* 2nd Function Configuration Status Register */
162 #define DINGO_SFBAR0 (DINGO_2ND+10) /* 2nd Function Base Address Register bits 7:0 */
163 #define DINGO_SFBAR1 (DINGO_2ND+12) /* 2nd Function Base Address Register bits 15:8 */
164 #define DINGO_SFILR (DINGO_2ND+18) /* 2nd Function I/O Limit Register */
165
166 /* DINGO_SFCOR bits */
167 #define DINGO_SFCOR_SF_ENABLE 0x01 /* 1 = Enable second fuction */
168 #define DINGO_SFCOR_IOB_ENABLE 0x02 /* 1 = Enable SFBAR, else use COM_SELECT bits */
169 #define DINGO_SFCOR_INT_ENABLE 0x04 /* 1 = Enable second function interrupts */
170 #define DINGO_SFCOR_COM_SELECT 0x18 /* 00 = 0x3f8; 01 = 0x2f8; 10 = 0x3e8; 11 = 0x2e8 */
171 #define DINGO_SFCOR_COM_SHIFT 0x03
172 #define DINGO_SFCOR_IRQ_STSCHG 0x20 /* 1 = Route interrupts to -STSCHG pin, else use -INT pin */
173 #define DINGO_SFCOR_IRQ_LEVEL 0x40 /* 1 = Level-triggered interrupts, else edge-triggered */
174 #define DINGO_SFCOR_SRESET 0x80 /* 1 = Soft reset second function. Must write to 0 */
175
176 /* DINGO_SFCSR bits */
177 #define DINGO_SFCSR_INT_ACK 0x01 /* 1 = Host must acknowledge interrupts (Clear SFCSR_INT bit) */
178 #define DINGO_SFCSR_INT 0x02 /* 1 = Interrupt service requested */
179 #define DINGO_SFCSR_POWER_DOWN 0x04 /* 1 = Power down second function */
180
181 /*
182 * SFBAR0/SFBAR1 set the I/O base address of the second function when
183 * SFCOR_IOB_ENABLE is set. 16 significant bits.
184 */
185
186 /*
187 * SFILR is a bitmap of address lines 7:0 decoded by the second function
188 * device. Eg. a device with 16 ports should write 0x0f to this register.
189 */
190
191
192
193 /********************************
194 * Ethernet controller registers
195 ********************************/
196
197 /*
198 * Common registers (available from any register page)
199 *
200 * Note: The EDP is actually 32 bits wide, occupying registers 2-5. In PCMCIA
201 * operation we can only access 16 bits at once, through registers 4 & 5.
202 */
203 #define XE_CR 0x00 /* Command register (write) */
204 #define XE_ESR 0x00 /* Ethernet status register (read) */
205 #define XE_PR 0x01 /* Page select register */
206 #define XE_EDP 0x04 /* Ethernet data port */
207 #define XE_ISR 0x06 /* Ethernet interrupt status register (read) */
208 #define XE_GIR 0x07 /* Global interrupt register (Dingo only) */
209
210 /* XE_CR bits */
211 #define XE_CR_TX_PACKET 0x01 /* Transmit packet */
212 #define XE_CR_SOFT_RESET 0x02 /* Software reset */
213 #define XE_CR_ENABLE_INTR 0x04 /* Enable interrupts */
214 #define XE_CR_FORCE_INTR 0x08 /* Force an interrupt */
215 #define XE_CR_CLEAR_FIFO 0x10 /* Clear FIFO after transmit overrun */
216 #define XE_CR_CLEAR_OVERRUN 0x20 /* Clear receive overrun condition */
217 #define XE_CR_RESTART_TX 0x40 /* Restart TX after 16 collisions or TX underrun */
218
219 /* XE_ESR bits */
220 #define XE_ESR_FULL_PACKET_RX 0x01 /* At least one full packet received */
221 #define XE_ESR_PART_PACKET_RX 0x02 /* At least 64 bytes of packet received */
222 #define XE_ESR_REJECT_PACKET 0x04 /* Partial packet rejected */
223 #define XE_ESR_TX_PENDING 0x08 /* At least one packet waiting to transmit */
224 #define XE_ESR_BAD_POLARITY 0x10 /* Bad cable polarity? (CE2 only) */
225 #define XE_ESR_MEDIA_SELECT 0x20 /* SSI(?) media select: 1 = Twisted pair; 0 = AUI */
226
227 /* XE_ISR bits */
228 #define XE_ISR_TX_OVERFLOW 0x01 /* No space in transmit buffer */
229 #define XE_ISR_TX_PACKET 0x02 /* Packet sent successfully */
230 #define XE_ISR_MAC_INTR 0x04 /* Some kind of MAC interrupt happened */
231 #define XE_ISR_RX_EARLY 0x10 /* Incoming packet in early receive mode */
232 #define XE_ISR_RX_PACKET 0x20 /* Complete packet received successfully */
233 #define XE_ISR_RX_REJECT 0x40 /* Partial incoming packet rejected by MAC */
234 #define XE_ISR_FORCE_INTR 0x80 /* Interrupt forced */
235
236 /* XE_GIR bits */
237 #define XE_GIR_ETH_IRQ 0x01 /* Ethernet IRQ pending */
238 #define XE_GIR_ETH_MASK 0x02 /* 1 = Mask Ethernet interrupts to host */
239 #define XE_GIR_SF_IRQ 0x04 /* Second function IRQ pending */
240 #define XE_GIR_SF_MASK 0x08 /* 1 = Mask second function interrupts to host */
241
242
243 /*
244 * Page 0 registers
245 */
246 #define XE_TSO 0x08 /* Transmit space open (17 bits) */
247 #define XE_TRS 0x0a /* Transmit reservation size (CE2 only, removed in rev. 1) */
248 #define XE_DO 0x0c /* Data offset register (13 bits/3 flags, write) */
249 #define XE_RSR 0x0c /* Receive status register (read) */
250 #define XE_TPR 0x0d /* Packets transmitted register (read) */
251 #define XE_RBC 0x0e /* Received byte count (13 bits/3 flags, read) */
252
253 /* XE_DO bits */
254 #define XE_DO_OFFSET 0x1fff /* First byte fetched when CHANGE_OFFSET issued */
255 #define XE_DO_OFFSET_SHIFT 0x00
256 #define XE_DO_CHANGE_OFFSET 0x2000 /* Flush RX FIFO, start fetching from OFFSET */
257 #define XE_DO_SHARED_MEM 0x4000 /* Enable shared memory mode */
258 #define XE_DO_SKIP_RX_PACKET 0x8000 /* Skip to next packet in buffer memory */
259
260 /* XE_RSR bits */
261 #define XE_RSR_PHYS_PACKET 0x01 /* 1 = Physical packet, 0 = Multicast packet */
262 #define XE_RSR_BCAST_PACKET 0x02 /* Broadcast packet */
263 #define XE_RSR_LONG_PACKET 0x04 /* Packet >1518 bytes */
264 #define XE_RSR_ADDR_MATCH 0x08 /* Packet matched one of our node addresses */
265 #define XE_RSR_ALIGN_ERROR 0x10 /* Bad alignment? (CE2 only) */
266 #define XE_RSR_CRC_ERROR 0x20 /* Incorrect CRC */
267 #define XE_RSR_RX_OK 0x80 /* No errors on received packet */
268
269 /* XE_RBC bits */
270 #define XE_RBC_BYTE_COUNT 0x1fff /* Bytes received for current packet */
271 #define XE_RBC_COUNT_SHIFT 0x00
272 #define XE_RBC_FULL_PACKET_RX 0x2000 /* These mirror bits 2:0 of ESR, if ECR:7 is set */
273 #define XE_RBC_PART_PACKET_RX 0x4000
274 #define XE_RBC_REJECT_PACKET 0x8000
275
276
277 /*
278 * Page 1 registers
279 */
280 #define XE_IMR0 0x0c /* Interrupt mask register 0 */
281 #define XE_IMR1 0x0d /* Interrupt mask register 1 (CE2 only) */
282 #define XE_ECR 0x0e /* Ethernet configuration register */
283
284 /* XE_IMR0 bits */
285 #define XE_IMR0_TX_OVERFLOW 0x01 /* Masks for bits in ISR */
286 #define XE_IMR0_TX_PACKET 0x02
287 #define XE_IMR0_MAC_INTR 0x04
288 #define XE_IMR0_TX_RESGRANT 0x08 /* Tx reservation granted (CE2) */
289 #define XE_IMR0_RX_EARLY 0x10
290 #define XE_IMR0_RX_PACKET 0x20
291 #define XE_IMR0_RX_REJECT 0x40
292 #define XE_IMR0_FORCE_INTR 0x80
293
294 /* XE_IMR1 bits */
295 #define XE_IMR1_TX_UNDERRUN 0x01
296
297 /* XE_ECR bits */
298 #define XE_ECR_EARLY_TX 0x01 /* Enable early transmit mode */
299 #define XE_ECR_EARLY_RX 0x02 /* Enable early receive mode */
300 #define XE_ECR_FULL_DUPLEX 0x04 /* Enable full-duplex (disable collision detection) */
301 #define XE_ECR_LONG_TPCABLE 0x08 /* CE2 only */
302 #define XE_ECR_NO_POL_COL 0x10 /* CE2 only */
303 #define XE_ECR_NO_LINK_PULSE 0x20 /* Don't check/send link pulses (not 10BT compliant) */
304 #define XE_ECR_NO_AUTO_TX 0x40 /* CE2 only */
305 #define XE_ECR_SOFT_COMPAT 0x80 /* Map ESR bits 2:0 to RBC bits 15:13 */
306
307
308 /*
309 * Page 2 registers
310 */
311 #define XE_RBS 0x08 /* Receive buffer start (16 bits) */
312 #define XE_LED 0x0a /* LED control register */
313 #define XE_LED3 0x0b /* LED3 control register */
314 #define XE_MSR 0x0c /* Misc. setup register (Mohawk specific register?) */
315 #define XE_GPR2 0x0d /* General purpose register 2 */
316
317 /*
318 * LED function selection:
319 * 000 - Disabled
320 * 001 - Collision activity
321 * 010 - !Collision activity
322 * 011 - 10Mbit link detected
323 * 100 - 100Mbit link detected
324 * 101 - 10/100Mbit link detected
325 * 110 - Automatic assertion
326 * 111 - Transmit activity
327 */
328
329 /* XE_LED bits */
330 #define XE_LED_LED0_MASK 0x07 /* LED0 function selection */
331 #define XE_LED_LED0_SHIFT 0x00
332 #define XE_LED_LED1_MASK 0x38 /* LED1 function selection */
333 #define XE_LED_LED1_SHIFT 0x03
334 #define XE_LED_LED0_RX 0x40 /* Add receive activity to LED0 */
335 #define XE_LED_LED1_RX 0x80 /* Add receive activity to LED1 */
336
337 /* XE_LED3 bits */
338 #define XE_LED3_MASK 0x07 /* LED3 function selection */
339 #define XE_LED3_SHIFT 0x00
340 #define XE_LED3_RX 0x40 /* Add receive activity to LED3 */
341
342 /* XE_MSR bits */
343 #define XE_MSR_128K_SRAM 0x01 /* Select 128K SRAM */
344 #define XE_MSR_RBS_BIT16 0x02 /* Bit 16 of RBS (only useful with big SRAM) */
345 #define XE_MSR_MII_SELECT 0x08 /* Select MII instead of SSI interface */
346 #define XE_MSR_HASH_TABLE 0x20 /* Enable hash table filtering */
347
348 /* XE_GPR2 bits */
349 #define XE_GPR2_GP3_OUT 0x01 /* Value written to GP3 line */
350 #define XE_GPR2_GP4_OUT 0x02 /* Value written to GP4 line */
351 #define XE_GPR2_GP3_SELECT 0x04 /* 1 = GP3 is output, 0 = GP3 is input */
352 #define XE_GPR2_GP4_SELECT 0x08 /* 1 = GP4 is output, 0 = GP3 is input */
353 #define XE_GPR2_GP3_IN 0x10 /* Value read from GP3 line */
354 #define XE_GPR2_GP4_IN 0x20 /* Value read from GP4 line */
355
356
357 /*
358 * Page 3 registers
359 */
360 #define XE_TPT 0x0a /* Transmit packet threshold (13 bits) */
361
362
363 /*
364 * Page 4 registers
365 */
366 #define XE_GPR0 0x08 /* General purpose register 0 */
367 #define XE_GPR1 0x09 /* General purpose register 1 */
368 #define XE_BOV 0x0a /* Bonding version register (read) */
369 #define XE_EES 0x0b /* EEPROM control register */
370 #define XE_LMA 0x0c /* Local memory address (CE2 only) */
371 #define XE_LMD 0x0e /* Local memory data (CE2 only) */
372
373 /* XE_GPR0 bits */
374 #define XE_GPR0_GP1_OUT 0x01 /* Value written to GP1 line */
375 #define XE_GPR0_GP2_OUT 0x02 /* Value written to GP2 line */
376 #define XE_GPR0_GP1_SELECT 0x04 /* 1 = GP1 is output, 0 = GP1 is input */
377 #define XE_GPR0_GP2_SELECT 0x08 /* 1 = GP2 is output, 0 = GP2 is input */
378 #define XE_GPR0_GP1_IN 0x10 /* Value read from GP1 line */
379 #define XE_GPR0_GP2_IN 0x20 /* Value read from GP2 line */
380
381 /* XE_GPR1 bits */
382 #define XE_GPR1_POWER_DOWN 0x01 /* 0 = Power down analog section */
383 #define XE_GPR1_AIC 0x04 /* AIC bit (CE2 only) */
384
385 /* XE_BOV values */
386 #define XE_BOV_DINGO 0x55 /* Dingo in Dingo mode */
387 #define XE_BOV_MOHAWK 0x41 /* Original Mohawk */
388 #define XE_BOV_MOHAWK_REV1 0x45 /* Rev. 1 Mohawk, or Dingo in Mohawk mode */
389 #define XE_BOV_CEM28 0x11 /* CEM28 */
390
391 /* XE_EES bits */
392 #define XE_EES_SCL_OUTPUT 0x01 /* Value written to SCL line, when MANUAL_ROM set */
393 #define XE_EES_SDA_OUTPUT 0x02 /* Value written to SDA line, when MANUAL_ROM set */
394 #define XE_EES_SDA_INPUT 0x04 /* Value read from SDA line */
395 #define XE_EES_SDA_TRISTATE 0x08 /* 1 = SDA is output, 0 = SDA is input */
396 #define XE_EES_MANUAL_ROM 0x20 /* Enable manual contro of serial EEPROM */
397
398
399 /*
400 * Page 5 registers (all read only)
401 */
402 #define XE_CRHA 0x08 /* Current Rx host address (16 bits) */
403 #define XE_RHSA 0x0a /* Rx host start address (16 bits) */
404 #define XE_RNSA 0x0c /* Rx network start address (16 bits) */
405 #define XE_CRNA 0x0e /* Current Rx network address (16 bits) */
406
407
408 /*
409 * Page 6 registers (all read only)
410 */
411 #define XE_CTHA 0x08 /* Current Tx host address (16 bits) */
412 #define XE_THSA 0x0a /* Tx host start address (16 bits) */
413 #define XE_TNSA 0x0c /* Tx network statr address (16 bits) */
414 #define XE_CTNA 0x0e /* Current Tx network address (16 bits) */
415
416
417 /*
418 * Page 8 registers (all read only)
419 */
420 #define XE_THBC 0x08 /* Tx host byte count (16 bits) */
421 #define XE_THPS 0x0a /* Tx host packet size (16 bits) */
422 #define XE_TNBC 0x0c /* Tx network byte count (16 bits) */
423 #define XE_TNPS 0x0e /* Tx network packet size (16 bits) */
424
425
426 /*
427 * Page 0x10 registers (all read only)
428 */
429 #define XE_DINGOID 0x08 /* Dingo ID register (16 bits) (Dingo only) */
430 #define XE_RevID 0x0a /* Dingo revision ID (16 bits) (Dingo only) */
431 #define XE_VendorID 0x0c /* Dingo vendor ID (16 bits) (Dingo only) */
432
433 /* Values for the above registers */
434 #define XE_DINGOID_DINGO3 0x444b /* In both Dingo and Mohawk modes */
435 #define XE_RevID_DINGO3 0x0001
436 #define XE_VendorID_DINGO3 0x0041
437
438
439 /*
440 * Page 0x40 registers
441 */
442 #define XE_CMD0 0x08 /* MAC Command register (write) */
443 #define XE_RST0 0x09 /* Receive status register */
444 #define XE_TXST0 0x0b /* Transmit status register 0 */
445 #define XE_TXST1 0x0c /* Transmit status register 1 */
446 #define XE_RX0Msk 0x0d /* Receive status mask register */
447 #define XE_TX0Msk 0x0e /* Transmit status 0 mask register */
448 #define XE_TX1Msk 0x0f /* Transmit status 1 mask register */
449
450 /* CMD0 bits */
451 #define XE_CMD0_TX 0x01 /* CE2 only */
452 #define XE_CMD0_RX_ENABLE 0x04 /* Enable receiver */
453 #define XE_CMD0_RX_DISABLE 0x08 /* Disable receiver */
454 #define XE_CMD0_ABORT 0x10 /* CE2 only */
455 #define XE_CMD0_ONLINE 0x20 /* Take MAC online */
456 #define XE_CMD0_ACK_INTR 0x40 /* CE2 only */
457 #define XE_CMD0_OFFLINE 0x80 /* Take MAC offline */
458
459 /* RST0 bits */
460 #define XE_RST0_LONG_PACKET 0x02 /* Packet received with >1518 and <8184 bytes */
461 #define XE_RST0_CRC_ERROR 0x08 /* Packet received with incorrect CRC */
462 #define XE_RST0_RX_OVERRUN 0x10 /* Receiver overrun, byte(s) dropped */
463 #define XE_RST0_RX_ENABLE 0x20 /* Receiver enabled */
464 #define XE_RST0_RX_ABORT 0x40 /* Receive aborted: CRC, FIFO overrun or addr mismatch */
465 #define XE_RST0_RX_OK 0x80 /* Complete packet received OK */
466
467 /* TXST0 bits */
468 #define XE_TXST0_NO_CARRIER 0x01 /* Lost carrier. Only valid in 10Mbit half-duplex */
469 #define XE_TXST0_16_COLLISIONS 0x02 /* Packet aborted after 16 collisions */
470 #define XE_TXST0_TX_UNDERRUN 0x08 /* MAC ran out of data to send */
471 #define XE_TXST0_LATE_COLLISION 0x10 /* Collision later than 512 bits */
472 #define XE_TXST0_SQE_FAIL 0x20 /* SQE test failed. */
473 #define XE_TXST0_TX_ABORT 0x40 /* Transmit aborted: collisions, underrun or overrun */
474 #define XE_TXST0_TX_OK 0x80 /* Complete packet sent OK */
475
476 /* TXST1 bits */
477 #define XE_TXST1_RETRY_COUNT 0x0f /* Collision counter for current packet */
478 #define XE_TXST1_LINK_STATUS 0x10 /* Valid link status */
479
480 /* RX0Msk bits */
481 #define XE_RX0M_MP 0x01 /* Multicast packet? (CE2 only) */
482 #define XE_RX0M_LONG_PACKET 0x02 /* Masks for bits in RXST0 */
483 #define XE_RX0M_ALIGN_ERROR 0x04 /* Alignment error (CE2 only) */
484 #define XE_RX0M_CRC_ERROR 0x08
485 #define XE_RX0M_RX_OVERRUN 0x10
486 #define XE_RX0M_RX_ABORT 0x40
487 #define XE_RX0M_RX_OK 0x80
488
489 /* TX0Msk bits */
490 #define XE_TX0M_NO_CARRIER 0x01 /* Masks for bits in TXST0 */
491 #define XE_TX0M_16_COLLISIONS 0x02
492 #define XE_TX0M_TX_UNDERRUN 0x08
493 #define XE_TX0M_LATE_COLLISION 0x10
494 #define XE_TX0M_SQE_FAIL 0x20
495 #define XE_TX0M_TX_ABORT 0x40
496 #define XE_TX0M_TX_OK 0x80
497
498 /* TX1Msk bits */
499 #define XE_TX1M_PKTDEF 0x20
500
501
502 /*
503 * Page 0x42 registers
504 */
505 #define XE_SWC0 0x08 /* Software configuration 0 */
506 #define XE_SWC1 0x09 /* Software configuration 1 */
507 #define XE_BOC 0x0a /* Back-off configuration */
508 #define XE_TCD 0x0b /* Transmit collision deferral */
509
510 /* SWC0 bits */
511 #define XE_SWC0_LOOPBACK_ENABLE 0x01 /* Enable loopback operation */
512 #define XE_SWC0_LOOPBACK_SOURCE 0x02 /* 1 = Transceiver, 0 = MAC */
513 #define XE_SWC0_ACCEPT_ERROR 0x04 /* Accept otherwise OK packets with CRC errors */
514 #define XE_SWC0_ACCEPT_SHORT 0x08 /* Accept otherwise OK packets that are too short */
515 #define XE_SWC0_NO_SRC_INSERT 0x20 /* Disable source insertion (CE2) */
516 #define XE_SWC0_NO_CRC_INSERT 0x40 /* Don't add CRC to outgoing packets */
517
518 /* SWC1 bits */
519 #define XE_SWC1_IA_ENABLE 0x01 /* Enable individual address filters */
520 #define XE_SWC1_ALLMULTI 0x02 /* Accept all multicast packets */
521 #define XE_SWC1_PROMISCUOUS 0x04 /* Accept all non-multicast packets */
522 #define XE_SWC1_BCAST_DISABLE 0x08 /* Reject broadcast packets */
523 #define XE_SWC1_MEDIA_SELECT 0x40 /* AUI media select (Mohawk only) */
524 #define XE_SWC1_AUTO_MEDIA 0x80 /* Auto media select (Mohawk only) */
525
526
527 /*
528 * Page 0x44 registers (CE2 only)
529 */
530 #define XE_TDR0 0x08 /* Time domain reflectometry register 0 */
531 #define XE_TDR1 0x09 /* Time domain reflectometry register 1 */
532 #define XE_RXC0 0x0a /* Receive byte count low */
533 #define XE_RXC1 0x0b /* Receive byte count high */
534
535
536 /*
537 * Page 0x45 registers (CE2 only)
538 */
539 #define XE_REV 0x0f /* Revision (read) */
540
541
542 /*
543 * Page 0x50-0x57: Individual address 0-9
544 *
545 * Used to filter incoming packets by matching against individual node
546 * addresses. If IA matching is enabled (SWC1, bit0) any incoming packet with
547 * a destination matching one of these 10 addresses will be received. IA0 is
548 * always enabled and usually matches the card's unique address.
549 *
550 * Addresses are stored LSB first, ie. IA00 (reg. 8 on page 0x50) contains the
551 * LSB of IA0, and so on. The data is stored contiguously, in that addresses
552 * can be broken across page boundaries. That is:
553 *
554 * Reg: 50/8 50/9 50/a 50/b 50/c 50/d 50/e 50/f 51/8 51/9 ... 57/a 57/b
555 * IA00 IA01 IA02 IA03 IA04 IA05 IA10 IA11 IA12 IA13 ... IA94 IA95
556 */
557
558 /*
559 * Page 0x58: Multicast hash table filter
560 *
561 * In case the 10 individual addresses aren't enough, we also have a multicast
562 * hash filter, enabled through MSR:5. The most significant six bits of the
563 * CRC on each incoming packet are reversed and used as an index into the 64
564 * bits of the hash table. If the appropriate bit is set the packet it
565 * received, although higher layers may still need to filter it out. The CRC
566 * calculation is as follows:
567 *
568 * crc = 0xffffffff;
569 * poly = 0x04c11db6;
570 * for (i = 0; i < 6; i++) {
571 * current = mcast_addr[i];
572 * for (k = 1; k <= 8; k++) {
573 * if (crc & 0x80000000)
574 * crc31 = 0x01;
575 * else
576 * crc31 = 0;
577 * bit = crc31 ^ (current & 0x01);
578 * crc <<= 1;
579 * current >>= 1;
580 * if (bit)
581 * crc = (crc ^ poly)|1
582 * }
583 * }
584 */
585
586
587
588 /****************
589 * MII registers
590 ****************/
591
592 /*
593 * Basic MII-compliant PHY register definitions. According to the Dingo spec,
594 * PHYs from (at least) MicroLinear, National Semiconductor, ICS, TDK and
595 * Quality Semiconductor have been used. These apparently all come up with
596 * PHY ID 0x00 unless the "interceptor module" on the Dingo 3 is in use. With
597 * the interceptor enabled, the PHY is faked up to look like an ICS unit with
598 * ID 0x16. The interceptor can be enabled/disabled in software.
599 *
600 * The ML6692 (and maybe others) doesn't have a 10Mbps mode -- this is handled
601 * by an internal 10Mbps transceiver that we know nothing about... some cards
602 * seem to work with the MII in 10Mbps mode, so I guess some PHYs must support
603 * it. The question is, how can you figure out which one you have? Just to
604 * add to the fun there are also 10Mbps _only_ Mohawk/Dingo cards. Aaargh!
605 */
606
607 /*
608 * Masks for the MII-related bits in GPR2
609 */
610 #define XE_MII_CLK XE_GPR2_GP3_OUT
611 #define XE_MII_DIR XE_GPR2_GP4_SELECT
612 #define XE_MII_WRD XE_GPR2_GP4_OUT
613 #define XE_MII_RDD XE_GPR2_GP4_IN
614
615 /*
616 * MII PHY ID register values
617 */
618 #define PHY_ID_ML6692 0x0000 /* MicroLinear ML6692? Or unknown */
619 #define PHY_ID_ICS1890 0x0015 /* ICS1890 */
620 #define PHY_ID_QS6612 0x0181 /* Quality QS6612 */
621 #define PHY_ID_DP83840 0x2000 /* National DP83840 */
622
623 /*
624 * MII command (etc) bit strings.
625 */
626 #define XE_MII_STARTDELIM 0x01
627 #define XE_MII_READOP 0x02
628 #define XE_MII_WRITEOP 0x01
629 #define XE_MII_TURNAROUND 0x02
630
631 /*
632 * PHY registers.
633 */
634 #define PHY_BMCR 0x00 /* Basic Mode Control Register */
635 #define PHY_BMSR 0x01 /* Basic Mode Status Register */
636 #define PHY_ID1 0x02 /* PHY ID 1 */
637 #define PHY_ID2 0x03 /* PHY ID 2 */
638 #define PHY_ANAR 0x04 /* Auto-Negotiation Advertisement Register */
639 #define PHY_LPAR 0x05 /* Auto-Negotiation Link Partner Ability Register */
640 #define PHY_ANER 0x06 /* Auto-Negotiation Expansion Register */
641
642 /* BMCR bits */
643 #define PHY_BMCR_RESET 0x8000 /* Soft reset PHY. Self-clearing */
644 #define PHY_BMCR_LOOPBK 0x4000 /* Enable loopback */
645 #define PHY_BMCR_SPEEDSEL 0x2000 /* 1=100Mbps, 0=10Mbps */
646 #define PHY_BMCR_AUTONEGENBL 0x1000 /* Auto-negotiation enabled */
647 #define PHY_BMCR_ISOLATE 0x0400 /* Isolate ML6692 from MII */
648 #define PHY_BMCR_AUTONEGRSTR 0x0200 /* Restart auto-negotiation. Self-clearing */
649 #define PHY_BMCR_DUPLEX 0x0100 /* Full duplex operation */
650 #define PHY_BMCR_COLLTEST 0x0080 /* Enable collision test */
651
652 /* BMSR bits */
653 #define PHY_BMSR_100BT4 0x8000 /* 100Base-T4 capable */
654 #define PHY_BMSR_100BTXFULL 0x4000 /* 100Base-TX full duplex capable */
655 #define PHY_BMSR_100BTXHALF 0x2000 /* 100Base-TX half duplex capable */
656 #define PHY_BMSR_10BTFULL 0x1000 /* 10Base-T full duplex capable */
657 #define PHY_BMSR_10BTHALF 0x0800 /* 10Base-T half duplex capable */
658 #define PHY_BMSR_AUTONEGCOMP 0x0020 /* Auto-negotiation complete */
659 #define PHY_BMSR_CANAUTONEG 0x0008 /* Auto-negotiation supported */
660 #define PHY_BMSR_LINKSTAT 0x0004 /* Link is up */
661 #define PHY_BMSR_EXTENDED 0x0001 /* Extended register capabilities */
662
663 /* ANAR bits */
664 #define PHY_ANAR_NEXTPAGE 0x8000 /* Additional link code word pages */
665 #define PHY_ANAR_TLRFLT 0x2000 /* Remote wire fault detected */
666 #define PHY_ANAR_100BT4 0x0200 /* 100Base-T4 capable */
667 #define PHY_ANAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */
668 #define PHY_ANAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */
669 #define PHY_ANAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */
670 #define PHY_ANAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */
671 #define PHY_ANAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */
672 #define PHY_ANAR_PROTO3 0x0008
673 #define PHY_ANAR_PROTO2 0x0004
674 #define PHY_ANAR_PROTO1 0x0002
675 #define PHY_ANAR_PROTO0 0x0001
676 #define PHY_ANAR_8023 PHY_ANAR_PROTO0
677 #define PHY_ANAR_DINGO PHY_ANAR_100BT+PHY_ANAR_10BT_FD+PHY_ANAR_10BT+PHY_ANAR_8023
678 #define PHY_ANAR_MOHAWK PHY_ANAR_100BT+PHY_ANAR_10BT_FD+PHY_ANAR_10BT+PHY_ANAR_8023
679
680 /* LPAR bits */
681 #define PHY_LPAR_NEXTPAGE 0x8000 /* Additional link code word pages */
682 #define PHY_LPAR_LPACK 0x4000 /* Link partner acknowledged receipt */
683 #define PHY_LPAR_TLRFLT 0x2000 /* Remote wire fault detected */
684 #define PHY_LPAR_100BT4 0x0200 /* 100Base-T4 capable */
685 #define PHY_LPAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */
686 #define PHY_LPAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */
687 #define PHY_LPAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */
688 #define PHY_LPAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */
689 #define PHY_LPAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */
690 #define PHY_LPAR_PROTO3 0x0008
691 #define PHY_LPAR_PROTO2 0x0004
692 #define PHY_LPAR_PROTO1 0x0002
693 #define PHY_LPAR_PROTO0 0x0001
694
695 /* ANER bits */
696 #define PHY_ANER_MLFAULT 0x0010 /* More than one link is up! */
697 #define PHY_ANER_LPNPABLE 0x0008 /* Link partner supports next page */
698 #define PHY_ANER_NPABLE 0x0004 /* Local port supports next page */
699 #define PHY_ANER_PAGERX 0x0002 /* Page received */
700 #define PHY_ANER_LPAUTONEG 0x0001 /* Link partner can auto-negotiate */
701
702 #endif /* DEV_XE_IF_XEREG_H */
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