FreeBSD/Linux Kernel Cross Reference
sys/dev/xe/if_xereg.h
1 /*-
2 * Copyright (c) 1998, 1999 Scott Mitchell
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $Id: if_xereg.h,v 1.5 1999/05/20 21:53:58 scott Exp $
27 * $FreeBSD: releng/5.1/sys/dev/xe/if_xereg.h 55723 2000-01-10 08:05:53Z imp $
28 */
29 #ifndef DEV_XE_IF_XEREG_H
30 #define DEV_XE_IF_XEREG_H
31
32 /*
33 * Register definitions for Xircom PCMCIA Ethernet controllers, based on
34 * Rev. B of the "Dingo" 10/100 controller used in Xircom CEM56 and RealPort
35 * Ethernet/modem cards. The Dingo can be configured to be register
36 * compatible with the "Mohawk" 10/100 controller used in Xircom CE3 cards
37 * (also some Intel and Compaq OEM versions of the CE3). The older 10Mbps CE2
38 * cards seem to use earlier revisions of the same device. Some registers and
39 * bits below are marked 'CE2 only'; these are used by Werner Koch's xirc2ps
40 * driver that was originally for the CE2 but, according to the spec, aren't
41 * present on the Dingo. They often seem to relate to operation on coax
42 * cables, which Mohawk can do in theory (it has the SSI interface) so they
43 * _might_ also work on Mohawk. I've also noted the few registers that are
44 * specific to Dingo.
45 *
46 * As far as I can tell, the Dingo is basically a Mohawk device with a few
47 * registers and support for a second PCMCIA function (the modem) added. In
48 * Dingo mode the SSI (non-MII) PHY interface of the Mohawk is not available.
49 * The CE2 chip is most likely a Mohawk without the MII and definitely with a
50 * slightly different register set.
51 *
52 * In all cases, the controller uses a paged model of register access. The
53 * first eight registers are always the same, the function of the second eight
54 * is selected by the value in the Page Register (reg 0x01).
55 *
56 * References:
57 * 1. Dingo External Reference Specification, Revision B. Xircom Inc.,
58 * Thousand Oaks, California. August 1998. Available under licence from
59 * Xircom, http://www.xircom.com/
60 * 2. ML6692 100BASE-TX Physical Layer with MII specification. MicroLinear
61 * Corp, San Jose, California. May 1997. Available for download from
62 * http://www.microlinear.com/
63 * 3. DP83840 10/100 Mb/s Ethernet Physical Layer specification. National
64 * Semiconductor Corp., Arlington, Texas. March 1997. Available for
65 * download from http://www.ns.com/
66 * 4. Werner Koch's xirc2ps driver for Linux, for all the CE2 and CE3 frobs
67 * that aren't documented in the Xircom spec. Available for download from
68 * http://www.d.shuttle.de/isil/xircom/xirc2ps.html
69 */
70
71 /*******************
72 * PCMCIA registers
73 *******************/
74
75 /*
76 * These are probably Dingo-specific, but you won't need them unless you have
77 * a CEM card that needs a bit of hackery to get the Ethernet function to
78 * operate. All addresses are in card attribute space.
79 */
80 #define DINGO_CIS 0x0000 /* Start of CIS tuples */
81 #define DINGO_ETH 0x0800 /* Ethernet configuration registers */
82 #define DINGO_COR 0x0820 /* Dingo configuration option registers */
83 #define DINGO_2ND 0x0840 /* 2nd function configuration registers */
84
85
86 /*
87 * Ethernet configuration registers
88 */
89 #define DINGO_ECOR (DINGO_ETH+0) /* Ethernet Configuration Option Register */
90 #define DINGO_ECSR (DINGO_ETH+2) /* Ethernet Configuration Status Register */
91 #define DINGO_EBAR0 (DINGO_ETH+10) /* Ethernet Base Address Register bits 7:4 (3:0 always 0) */
92 #define DINGO_EBAR1 (DINGO_ETH+12) /* Ethernet Base Address Register bits 15:8 */
93
94 /* DINGO_ECOR bits */
95 #define DINGO_ECOR_ETH_ENABLE 0x01 /* 1 = Enable Ethernet part of adapter */
96 #define DINGO_ECOR_IOB_ENABLE 0x02 /* 1 = Enable EBAR, else use INDEX bits */
97 #define DINGO_ECOR_INT_ENABLE 0x04 /* 1 = Enable Ethernet interrupts */
98 #define DINGO_ECOR_IOB_INDEX 0x18 /* 00 = 0x300; 01 = 0x310; 10 = 0x320; 11 = no IO base */
99 #define DINGO_ECOR_IOB_SHIFT 0x03
100 #define DINGO_ECOR_IRQ_STSCHG 0x20 /* 1 = Route interrupts to -STSCHG pin, else use -INT pin */
101 #define DINGO_ECOR_IRQ_LEVEL 0x40 /* 1 = Level-triggered interrupts, else edge-triggered */
102 #define DINGO_ECOR_SRESET 0x80 /* 1 = Soft reset Ethernet adpater. Must write to 0 */
103
104 /* DINGO_ECSR bits */
105 #define DINGO_ECSR_INT_ACK 0x01 /* 1 = Host must acknowledge interrupts (Clear ECSR_INT bit) */
106 #define DINGO_ECSR_INT 0x02 /* 1 = Interrupt service requested */
107 #define DINGO_ECSR_POWER_DOWN 0x04 /* 1 = Power down Ethernet adapter */
108
109 /*
110 * EBAR0/EBAR1 set the I/O base address of the Ethernet adapter when
111 * ECOR_IOB_ENABLE is set. 12 significant bits.
112 */
113
114
115 /*
116 * Dingo configuration registers
117 */
118 #define DINGO_DCOR0 (DINGO_COR+0) /* Dingo Configuration Options Register 0 */
119 #define DINGO_DCOR1 (DINGO_COR+2) /* Dingo Configuration Options Register 1 */
120 #define DINGO_DCOR2 (DINGO_COR+4) /* Dingo Configuration Options Register 2 */
121 #define DINGO_DCOR3 (DINGO_COR+6) /* Dingo Configuration Options Register 3 */
122 #define DINGO_DCOR4 (DINGO_COR+8) /* Dingo Configuration Options Register 4 */
123
124 /* DINGO_DCOR0 bits */
125 #define DINGO_DCOR0_SF_INT 0x01 /* 1 = Enable 2ndF interrupts (alternate to SFCOR:2) */
126 #define DINGO_DCOR0_DECODE 0x04 /* 1 = Decode 2ndF interrupts in Dingo, else in 2ndF */
127 #define DINGO_DCOR0_BUS 0x08 /* 1 = 2ndF bus is ISA, else PCMCIA */
128 #define DINGO_DCOR0_LED3_POWER 0x10 /* 1 = Drive LED3 line from SFCSR:2 */
129 #define DINGO_DCOR0_LED3_RESET 0x20 /* 1 = Drive LED3 line from SFCOR:7 */
130 #define DINGO_DCOR0_MR_POWER 0x40 /* 1 = Drive MRESET line from SFCSR:2 */
131 #define DINGO_DCOR0_MR_RESET 0x80 /* 1 = Drive MRESET line from SFCOR:7 */
132
133 /* DINGO_DCOR1 bits */
134 #define DINGO_DCOR1_INT_STSCHG 0x01 /* 1 = Route 2ndF interrupts to -STSCHG (alternate to SFCOR:5) */
135 #define DINGO_DCOR1_MSTSCHG 0x02 /* 1 = Route 2ndF -MSTSCHG line to -STSCHG */
136 #define DINGO_DCOR1_EEDIO 0x04 /* 1 = Use EEDIO pin as data line 6 to 2ndF */
137 #define DINGO_DCOR1_INT_LEVEL 0x08 /* 1 = Force level-triggered interrupts from 2ndF */
138 #define DINGO_DCOR1_SHADOW_CSR 0x10 /* Reserved, always write 0 */
139 #define DINGO_DCOR1_SHADOW_IOB 0x20 /* Reserved, always write 0 */
140 #define DINGO_DCOR1_CSR_WAIT 0xC0 /* Reserved, always write 0 */
141 #define DINGO_DCOR1_CSR_SHIFT 0x06
142
143 /* DINGO_DCOR2 bits */
144 #define DINGO_DCOR2_SHM_BASE 0x0f /* Bits 15-12 of Ethernet shared memory window */
145 #define DINGO_DCOR2_SHM_SHIFT 0x00
146 #define DINGO_DCOR2_SHADOW_COR 0x10 /* Reserved, always write 0 */
147
148 /*
149 * DCOR3/DCOR4 configure Dingo to assert -IOIS16 on any access to each pair of
150 * ports in the range SFIOB+0 .. SFIOB+31. Each pair can be set individually,
151 * eg. DCOR3:0 enables this function on ports SFIOB+0 and SFIOB+1.
152 */
153
154
155 /*
156 * Second function configuration registers
157 */
158 #define DINGO_SFCOR (DINGO_2ND+0) /* 2nd Function Configuration Option Register */
159 #define DINGO_SFCSR (DINGO_2ND+2) /* 2nd Function Configuration Status Register */
160 #define DINGO_SFBAR0 (DINGO_2ND+10) /* 2nd Function Base Address Register bits 7:0 */
161 #define DINGO_SFBAR1 (DINGO_2ND+12) /* 2nd Function Base Address Register bits 15:8 */
162 #define DINGO_SFILR (DINGO_2ND+18) /* 2nd Function I/O Limit Register */
163
164 /* DINGO_SFCOR bits */
165 #define DINGO_SFCOR_SF_ENABLE 0x01 /* 1 = Enable second fuction */
166 #define DINGO_SFCOR_IOB_ENABLE 0x02 /* 1 = Enable SFBAR, else use COM_SELECT bits */
167 #define DINGO_SFCOR_INT_ENABLE 0x04 /* 1 = Enable second function interrupts */
168 #define DINGO_SFCOR_COM_SELECT 0x18 /* 00 = 0x3f8; 01 = 0x2f8; 10 = 0x3e8; 11 = 0x2e8 */
169 #define DINGO_SFCOR_COM_SHIFT 0x03
170 #define DINGO_SFCOR_IRQ_STSCHG 0x20 /* 1 = Route interrupts to -STSCHG pin, else use -INT pin */
171 #define DINGO_SFCOR_IRQ_LEVEL 0x40 /* 1 = Level-triggered interrupts, else edge-triggered */
172 #define DINGO_SFCOR_SRESET 0x80 /* 1 = Soft reset second function. Must write to 0 */
173
174 /* DINGO_SFCSR bits */
175 #define DINGO_SFCSR_INT_ACK 0x01 /* 1 = Host must acknowledge interrupts (Clear SFCSR_INT bit) */
176 #define DINGO_SFCSR_INT 0x02 /* 1 = Interrupt service requested */
177 #define DINGO_SFCSR_POWER_DOWN 0x04 /* 1 = Power down second function */
178
179 /*
180 * SFBAR0/SFBAR1 set the I/O base address of the second function when
181 * SFCOR_IOB_ENABLE is set. 16 significant bits.
182 */
183
184 /*
185 * SFILR is a bitmap of address lines 7:0 decoded by the second function
186 * device. Eg. a device with 16 ports should write 0x0f to this register.
187 */
188
189
190
191 /********************************
192 * Ethernet controller registers
193 ********************************/
194
195 /*
196 * Common registers (available from any register page)
197 *
198 * Note: The EDP is actually 32 bits wide, occupying registers 2-5. In PCMCIA
199 * operation we can only access 16 bits at once, through registers 4 & 5.
200 */
201 #define XE_CR 0x00 /* Command register (write) */
202 #define XE_ESR 0x00 /* Ethernet status register (read) */
203 #define XE_PR 0x01 /* Page select register */
204 #define XE_EDP 0x04 /* Ethernet data port */
205 #define XE_ISR 0x06 /* Ethernet interrupt status register (read) */
206 #define XE_GIR 0x07 /* Global interrupt register (Dingo only) */
207
208 /* XE_CR bits */
209 #define XE_CR_TX_PACKET 0x01 /* Transmit packet */
210 #define XE_CR_SOFT_RESET 0x02 /* Software reset */
211 #define XE_CR_ENABLE_INTR 0x04 /* Enable interrupts */
212 #define XE_CR_FORCE_INTR 0x08 /* Force an interrupt */
213 #define XE_CR_CLEAR_FIFO 0x10 /* Clear FIFO after transmit overrun */
214 #define XE_CR_CLEAR_OVERRUN 0x20 /* Clear receive overrun condition */
215 #define XE_CR_RESTART_TX 0x40 /* Restart TX after 16 collisions or TX underrun */
216
217 /* XE_ESR bits */
218 #define XE_ESR_FULL_PACKET_RX 0x01 /* At least one full packet received */
219 #define XE_ESR_PART_PACKET_RX 0x02 /* At least 64 bytes of packet received */
220 #define XE_ESR_REJECT_PACKET 0x04 /* Partial packet rejected */
221 #define XE_ESR_TX_PENDING 0x08 /* At least one packet waiting to transmit */
222 #define XE_ESR_BAD_POLARITY 0x10 /* Bad cable polarity? (CE2 only) */
223 #define XE_ESR_MEDIA_SELECT 0x20 /* SSI(?) media select: 1 = Twisted pair; 0 = AUI */
224
225 /* XE_ISR bits */
226 #define XE_ISR_TX_OVERFLOW 0x01 /* No space in transmit buffer */
227 #define XE_ISR_TX_PACKET 0x02 /* Packet sent successfully */
228 #define XE_ISR_MAC_INTR 0x04 /* Some kind of MAC interrupt happened */
229 #define XE_ISR_RX_EARLY 0x10 /* Incoming packet in early receive mode */
230 #define XE_ISR_RX_PACKET 0x20 /* Complete packet received successfully */
231 #define XE_ISR_RX_REJECT 0x40 /* Partial incoming packet rejected by MAC */
232 #define XE_ISR_FORCE_INTR 0x80 /* Interrupt forced */
233
234 /* XE_GIR bits */
235 #define XE_GIR_ETH_IRQ 0x01 /* Ethernet IRQ pending */
236 #define XE_GIR_ETH_MASK 0x02 /* 1 = Mask Ethernet interrupts to host */
237 #define XE_GIR_SF_IRQ 0x04 /* Second function IRQ pending */
238 #define XE_GIR_SF_MASK 0x08 /* 1 = Mask second function interrupts to host */
239
240
241 /*
242 * Page 0 registers
243 */
244 #define XE_TSO 0x08 /* Transmit space open (17 bits) */
245 #define XE_TRS 0x0a /* Transmit reservation size (CE2 only, removed in rev. 1) */
246 #define XE_DO 0x0c /* Data offset register (13 bits/3 flags, write) */
247 #define XE_RSR 0x0c /* Receive status register (read) */
248 #define XE_TPR 0x0d /* Packets transmitted register (read) */
249 #define XE_RBC 0x0e /* Received byte count (13 bits/3 flags, read) */
250
251 /* XE_DO bits */
252 #define XE_DO_OFFSET 0x1fff /* First byte fetched when CHANGE_OFFSET issued */
253 #define XE_DO_OFFSET_SHIFT 0x00
254 #define XE_DO_CHANGE_OFFSET 0x2000 /* Flush RX FIFO, start fetching from OFFSET */
255 #define XE_DO_SHARED_MEM 0x4000 /* Enable shared memory mode */
256 #define XE_DO_SKIP_RX_PACKET 0x8000 /* Skip to next packet in buffer memory */
257
258 /* XE_RSR bits */
259 #define XE_RSR_PHYS_PACKET 0x01 /* 1 = Physical packet, 0 = Multicast packet */
260 #define XE_RSR_BCAST_PACKET 0x02 /* Broadcast packet */
261 #define XE_RSR_LONG_PACKET 0x04 /* Packet >1518 bytes */
262 #define XE_RSR_ADDR_MATCH 0x08 /* Packet matched one of our node addresses */
263 #define XE_RSR_ALIGN_ERROR 0x10 /* Bad alignment? (CE2 only) */
264 #define XE_RSR_CRC_ERROR 0x20 /* Incorrect CRC */
265 #define XE_RSR_RX_OK 0x80 /* No errors on received packet */
266
267 /* XE_RBC bits */
268 #define XE_RBC_BYTE_COUNT 0x1fff /* Bytes received for current packet */
269 #define XE_RBC_COUNT_SHIFT 0x00
270 #define XE_RBC_FULL_PACKET_RX 0x2000 /* These mirror bits 2:0 of ESR, if ECR:7 is set */
271 #define XE_RBC_PART_PACKET_RX 0x4000
272 #define XE_RBC_REJECT_PACKET 0x8000
273
274
275 /*
276 * Page 1 registers
277 */
278 #define XE_IMR0 0x0c /* Interrupt mask register 0 */
279 #define XE_IMR1 0x0d /* Interrupt mask register 1 (CE2 only) */
280 #define XE_ECR 0x0e /* Ethernet configuration register */
281
282 /* XE_IMR0 bits */
283 #define XE_IMR0_TX_OVERFLOW 0x01 /* Masks for bits in ISR */
284 #define XE_IMR0_TX_PACKET 0x02
285 #define XE_IMR0_MAC_INTR 0x04
286 #define XE_IMR0_RX_EARLY 0x10
287 #define XE_IMR0_RX_PACKET 0x20
288 #define XE_IMR0_RX_REJECT 0x40
289 #define XE_IMR0_FORCE_INTR 0x80
290
291 /* XE_ECR bits */
292 #define XE_ECR_EARLY_TX 0x01 /* Enable early transmit mode */
293 #define XE_ECR_EARLY_RX 0x02 /* Enable early receive mode */
294 #define XE_ECR_FULL_DUPLEX 0x04 /* Enable full-duplex (disable collision detection) */
295 #define XE_ECR_LONG_TPCABLE 0x08 /* CE2 only */
296 #define XE_ECR_NO_POL_COL 0x10 /* CE2 only */
297 #define XE_ECR_NO_LINK_PULSE 0x20 /* Don't check/send link pulses (not 10BT compliant) */
298 #define XE_ECR_NO_AUTO_TX 0x40 /* CE2 only */
299 #define XE_ECR_SOFT_COMPAT 0x80 /* Map ESR bits 2:0 to RBC bits 15:13 */
300
301
302 /*
303 * Page 2 registers
304 */
305 #define XE_RBS 0x08 /* Receive buffer start (16 bits) */
306 #define XE_LED 0x0a /* LED control register */
307 #define XE_LED3 0x0b /* LED3 control register */
308 #define XE_MSR 0x0c /* Misc. setup register (Mohawk specific register?) */
309 #define XE_GPR2 0x0d /* General purpose register 2 */
310
311 /*
312 * LED function selection:
313 * 000 - Disabled
314 * 001 - Collision activity
315 * 010 - !Collision activity
316 * 011 - 10Mbit link detected
317 * 100 - 100Mbit link detected
318 * 101 - 10/100Mbit link detected
319 * 110 - Automatic assertion
320 * 111 - Transmit activity
321 */
322
323 /* XE_LED bits */
324 #define XE_LED_LED0_MASK 0x07 /* LED0 function selection */
325 #define XE_LED_LED0_SHIFT 0x00
326 #define XE_LED_LED1_MASK 0x38 /* LED1 function selection */
327 #define XE_LED_LED1_SHIFT 0x03
328 #define XE_LED_LED0_RX 0x40 /* Add receive activity to LED0 */
329 #define XE_LED_LED1_RX 0x80 /* Add receive activity to LED1 */
330
331 /* XE_LED3 bits */
332 #define XE_LED3_MASK 0x07 /* LED3 function selection */
333 #define XE_LED3_SHIFT 0x00
334 #define XE_LED3_RX 0x40 /* Add receive activity to LED3 */
335
336 /* XE_MSR bits */
337 #define XE_MSR_128K_SRAM 0x01 /* Select 128K SRAM */
338 #define XE_MSR_RBS_BIT16 0x02 /* Bit 16 of RBS (only useful with big SRAM) */
339 #define XE_MSR_MII_SELECT 0x08 /* Select MII instead of SSI interface */
340 #define XE_MSR_HASH_TABLE 0x20 /* Enable hash table filtering */
341
342 /* XE_GPR2 bits */
343 #define XE_GPR2_GP3_OUT 0x01 /* Value written to GP3 line */
344 #define XE_GPR2_GP4_OUT 0x02 /* Value written to GP4 line */
345 #define XE_GPR2_GP3_SELECT 0x04 /* 1 = GP3 is output, 0 = GP3 is input */
346 #define XE_GPR2_GP4_SELECT 0x08 /* 1 = GP4 is output, 0 = GP3 is input */
347 #define XE_GPR2_GP3_IN 0x10 /* Value read from GP3 line */
348 #define XE_GPR2_GP4_IN 0x20 /* Value read from GP4 line */
349
350
351 /*
352 * Page 3 registers
353 */
354 #define XE_TPT 0x0a /* Transmit packet threshold (13 bits) */
355
356
357 /*
358 * Page 4 registers
359 */
360 #define XE_GPR0 0x08 /* General purpose register 0 */
361 #define XE_GPR1 0x09 /* General purpose register 1 */
362 #define XE_BOV 0x0a /* Bonding version register (read) */
363 #define XE_EES 0x0b /* EEPROM control register */
364 #define XE_LMA 0x0c /* Local memory address (CE2 only) */
365 #define XE_LMD 0x0e /* Local memory data (CE2 only) */
366
367 /* XE_GPR0 bits */
368 #define XE_GPR0_GP1_OUT 0x01 /* Value written to GP1 line */
369 #define XE_GPR0_GP2_OUT 0x02 /* Value wirtten to GP2 line */
370 #define XE_GPR0_GP1_SELECT 0x04 /* 1 = GP1 is output, 0 = GP1 is input */
371 #define XE_GPR0_GP2_SELECT 0x08 /* 1 = GP2 is output, 0 = GP2 is input */
372 #define XE_GPR0_GP1_IN 0x10 /* Value read from GP1 line */
373 #define XE_GPR0_GP2_IN 0x20 /* Value read from GP2 line */
374
375 /* XE_GPR1 bits */
376 #define XE_GPR1_POWER_DOWN 0x01 /* Power down analog section (down to 20mA load) */
377
378 /* XE_BOV values */
379 #define XE_BOV_DINGO 0x55 /* Dingo in Dingo mode */
380 #define XE_BOV_MOHAWK 0x41 /* Original Mohawk */
381 #define XE_BOV_MOHAWK_REV1 0x45 /* Rev. 1 Mohawk, or Dingo in Mohawk mode */
382 #define XE_BOV_CEM28 0x11 /* CEM28 */
383
384 /* XE_EES bits */
385 #define XE_EES_SCL_OUTPUT 0x01 /* Value written to SCL line, when MANUAL_ROM set */
386 #define XE_EES_SDA_OUTPUT 0x02 /* Value written to SDA line, when MANUAL_ROM set */
387 #define XE_EES_SDA_INPUT 0x04 /* Value read from SDA line */
388 #define XE_EES_SDA_TRISTATE 0x08 /* 1 = SDA is output, 0 = SDA is input */
389 #define XE_EES_MANUAL_ROM 0x20 /* Enable manual contro of serial EEPROM */
390
391
392 /*
393 * Page 5 registers (all read only)
394 */
395 #define XE_CRHA 0x08 /* Current Rx host address (16 bits) */
396 #define XE_RHSA 0x0a /* Rx host start address (16 bits) */
397 #define XE_RNSA 0x0c /* Rx network start address (16 bits) */
398 #define XE_CRNA 0x0e /* Current Rx network address (16 bits) */
399
400
401 /*
402 * Page 6 registers (all read only)
403 */
404 #define XE_CTHA 0x08 /* Current Tx host address (16 bits) */
405 #define XE_THSA 0x0a /* Tx host start address (16 bits) */
406 #define XE_TNSA 0x0c /* Tx network statr address (16 bits) */
407 #define XE_CTNA 0x0e /* Current Tx network address (16 bits) */
408
409
410 /*
411 * Page 8 registers (all read only)
412 */
413 #define XE_THBC 0x08 /* Tx host byte count (16 bits) */
414 #define XE_THPS 0x0a /* Tx host packet size (16 bits) */
415 #define XE_TNBC 0x0c /* Tx network byte count (16 bits) */
416 #define XE_TNPS 0x0e /* Tx network packet size (16 bits) */
417
418
419 /*
420 * Page 0x10 registers (all read only)
421 */
422 #define XE_DINGOID 0x08 /* Dingo ID register (16 bits) (Dingo only) */
423 #define XE_RevID 0x0a /* Dingo revision ID (16 bits) (Dingo only) */
424 #define XE_VendorID 0x0c /* Dingo vendor ID (16 bits) (Dingo only) */
425
426 /* Values for the above registers */
427 #define XE_DINGOID_DINGO3 0x444b /* In both Dingo and Mohawk modes */
428 #define XE_RevID_DINGO3 0x0001
429 #define XE_VendorID_DINGO3 0x0041
430
431
432 /*
433 * Page 0x40 registers
434 */
435 #define XE_CMD0 0x08 /* MAC Command register (write) */
436 #define XE_RST0 0x09 /* Receive status register */
437 #define XE_TXST0 0x0b /* Transmit status register 0 */
438 #define XE_TXST1 0x0c /* Transmit status register 1 */
439 #define XE_RX0Msk 0x0d /* Receive status mask register */
440 #define XE_TX0Msk 0x0e /* Transmit status 0 mask register */
441 #define XE_TX1Msk 0x0f /* Transmit status 1 mask register */
442
443 /* CMD0 bits */
444 #define XE_CMD0_TX 0x01 /* CE2 only */
445 #define XE_CMD0_RX_ENABLE 0x04 /* Enable receiver */
446 #define XE_CMD0_RX_DISABLE 0x08 /* Disable receiver */
447 #define XE_CMD0_ABORT 0x10 /* CE2 only */
448 #define XE_CMD0_ONLINE 0x20 /* Take MAC online */
449 #define XE_CMD0_ACK_INTR 0x40 /* CE2 only */
450 #define XE_CMD0_OFFLINE 0x80 /* Take MAC offline */
451
452 /* RST0 bits */
453 #define XE_RST0_LONG_PACKET 0x02 /* Packet received with >1518 and <8184 bytes */
454 #define XE_RST0_CRC_ERROR 0x08 /* Packet received with incorrect CRC */
455 #define XE_RST0_RX_OVERRUN 0x10 /* Receiver overrun, byte(s) dropped */
456 #define XE_RST0_RX_ENABLE 0x20 /* Receiver enabled */
457 #define XE_RST0_RX_ABORT 0x40 /* Receive aborted: CRC, FIFO overrun or addr mismatch */
458 #define XE_RST0_RX_OK 0x80 /* Complete packet received OK */
459
460 /* TXST0 bits */
461 #define XE_TXST0_NO_CARRIER 0x01 /* Lost carrier. Only valid in 10Mbit half-duplex */
462 #define XE_TXST0_16_COLLISIONS 0x02 /* Packet aborted after 16 collisions */
463 #define XE_TXST0_TX_UNDERRUN 0x08 /* MAC ran out of data to send */
464 #define XE_TXST0_LATE_COLLISION 0x10 /* Collision later than 512 bits */
465 #define XE_TXST0_SQE_FAIL 0x20 /* SQE test failed. */
466 #define XE_TXST0_TX_ABORT 0x40 /* Transmit aborted: collisions, underrun or overrun */
467 #define XE_TXST0_TX_OK 0x80 /* Complete packet sent OK */
468
469 /* TXST1 bits */
470 #define XE_TXST1_RETRY_COUNT 0x0f /* Collision counter for current packet */
471 #define XE_TXST1_LINK_STATUS 0x10 /* Valid link status */
472
473 /* RX0Msk bits */
474 #define XE_RX0M_LONG_PACKET 0x02 /* Masks for bits in RXST0 */
475 #define XE_RX0M_ALIGN_ERROR 0x04 /* Alignment error (CE2 only) */
476 #define XE_RX0M_CRC_ERROR 0x08
477 #define XE_RX0M_RX_OVERRUN 0x10
478 #define XE_RX0M_RX_ABORT 0x40
479 #define XE_RX0M_RX_OK 0x80
480
481 /* TX0Msk bits */
482 #define XE_TX0M_NO_CARRIER 0x01 /* Masks for bits in TXST0 */
483 #define XE_TX0M_16_COLLISIONS 0x02
484 #define XE_TX0M_TX_UNDERRUN 0x08
485 #define XE_TX0M_LATE_COLLISION 0x10
486 #define XE_TX0M_SQE_FAIL 0x20
487 #define XE_TX0M_TX_ABORT 0x40
488 #define XE_TX0M_TX_OK 0x80
489
490 /* TX1Msk bits */
491 #define XE_TX1M_PKTDEF 0x20
492
493
494 /*
495 * Page 0x42 registers
496 */
497 #define XE_SWC0 0x08 /* Software configuration 0 */
498 #define XE_SWC1 0x09 /* Software configuration 1 */
499 #define XE_BOC 0x0a /* Back-off configuration */
500 #define XE_TCD 0x0b /* Transmit collision deferral */
501
502 /* SWC0 bits */
503 #define XE_SWC0_LOOPBACK_ENABLE 0x01 /* Enable loopback operation */
504 #define XE_SWC0_LOOPBACK_SOURCE 0x02 /* 1 = Transceiver, 0 = MAC */
505 #define XE_SWC0_ACCEPT_ERROR 0x04 /* Accept otherwise OK packets with CRC errors */
506 #define XE_SWC0_ACCEPT_SHORT 0x08 /* Accept otherwise OK packets that are too short */
507 #define XE_SWC0_NO_CRC_INSERT 0x40 /* Don't add CRC to outgoing packets */
508
509 /* SWC1 bits */
510 #define XE_SWC1_IA_ENABLE 0x01 /* Enable individual address filters */
511 #define XE_SWC1_ALLMULTI 0x02 /* Accept all multicast packets */
512 #define XE_SWC1_PROMISCUOUS 0x04 /* Accept all non-multicast packets */
513 #define XE_SWC1_BCAST_DISABLE 0x08 /* Reject broadcast packets */
514 #define XE_SWC1_MEDIA_SELECT 0x40 /* AUI media select (Mohawk only) */
515 #define XE_SWC1_AUTO_MEDIA 0x80 /* Auto media select (Mohawk only) */
516
517
518 /*
519 * Page 0x44 registers (CE2 only)
520 */
521 #define XE_TDR0 0x08 /* Time domain reflectometry register 0 */
522 #define XE_TDR1 0x09 /* Time domain reflectometry register 1 */
523 #define XE_RXC0 0x0a /* Receive byte count low */
524 #define XE_RXC1 0x0b /* Receive byte count high */
525
526
527 /*
528 * Page 0x45 registers (CE2 only)
529 */
530 #define XE_REV 0x0f /* Revision (read) */
531
532
533 /*
534 * Page 0x50-0x57: Individual address 0-9
535 *
536 * Used to filter incoming packets by matching against individual node
537 * addresses. If IA matching is enabled (SWC1, bit0) any incoming packet with
538 * a destination matching one of these 10 addresses will be received. IA0 is
539 * always enabled and usually matches the card's unique address.
540 *
541 * Addresses are stored LSB first, ie. IA00 (reg. 8 on page 0x50) contains the
542 * LSB of IA0, and so on. The data is stored contiguously, in that addresses
543 * can be broken across page boundaries. That is:
544 *
545 * 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
546 * IA00 IA01 IA02 IA03 IA04 IA05 IA10 IA11 IA12 IA13 ... IA94 IA95
547 */
548
549 /*
550 * Page 0x58: Multicast hash table filter
551 *
552 * In case the 10 individual addresses aren't enough, we also have a multicast
553 * hash filter, enabled through MSR:5. The most significant six bits of the
554 * CRC on each incoming packet are reversed and used as an index into the 64
555 * bits of the hash table. If the appropriate bit is set the packet it
556 * received, although higher layers may still need to filter it out. The CRC
557 * calculation is as follows:
558 *
559 * crc = 0xffffffff;
560 * poly = 0x04c11db6;
561 * for (i = 0; i < 6; i++) {
562 * current = mcast_addr[i];
563 * for (k = 1; k <= 8; k++) {
564 * if (crc & 0x80000000);
565 * crc31 = 0x01;
566 * else
567 * crc31 = 0;
568 * bit = crc31 ^ (current & 0x01);
569 * crc <<= 1;
570 * current >>= 1;
571 * if (bit)
572 * crc = (crc ^ poly)|1
573 * }
574 * }
575 */
576
577
578
579 /****************
580 * MII registers
581 ****************/
582
583 /*
584 * Basic MII-compliant PHY register definitions. According to the Dingo spec,
585 * PHYs from (at least) MicroLinear, National Semiconductor, ICS, TDK and
586 * Quality Semiconductor have been used. These apparently all come up with
587 * PHY ID 0x00 unless the "interceptor module" on the Dingo 3 is in use. With
588 * the interceptor enabled, the PHY is faked up to look like an ICS unit with
589 * ID 0x16. The interceptor can be enabled/disabled in software.
590 *
591 * The ML6692 (and maybe others) doesn't have a 10Mbps mode -- this is handled
592 * by an internal 10Mbps transceiver that we know nothing about... some cards
593 * seem to work with the MII in 10Mbps mode, so I guess some PHYs must support
594 * it. The question is, how can you figure out which one you have? Just to
595 * add to the fun there are also 10Mbps _only_ Mohawk/Dingo cards. Aaargh!
596 */
597
598 /*
599 * Masks for the MII-related bits in GPR2
600 */
601 #define XE_MII_CLK XE_GPR2_GP3_OUT
602 #define XE_MII_DIR XE_GPR2_GP4_SELECT
603 #define XE_MII_WRD XE_GPR2_GP4_OUT
604 #define XE_MII_RDD XE_GPR2_GP4_IN
605
606 /*
607 * MII PHY ID register values
608 */
609 #define PHY_ID_ML6692 0x0000 /* MicroLinear ML6692? Or unknown */
610 #define PHY_ID_ICS1890 0x0015 /* ICS1890 */
611 #define PHY_ID_QS6612 0x0181 /* Quality QS6612 */
612 #define PHY_ID_DP83840 0x2000 /* National DP83840 */
613
614 /*
615 * MII command (etc) bit strings.
616 */
617 #define XE_MII_STARTDELIM 0x01
618 #define XE_MII_READOP 0x02
619 #define XE_MII_WRITEOP 0x01
620 #define XE_MII_TURNAROUND 0x02
621
622 /*
623 * PHY registers.
624 */
625 #define PHY_BMCR 0x00 /* Basic Mode Control Register */
626 #define PHY_BMSR 0x01 /* Basic Mode Status Register */
627 #define PHY_ID1 0x02 /* PHY ID 1 */
628 #define PHY_ID2 0x03 /* PHY ID 2 */
629 #define PHY_ANAR 0x04 /* Auto-Negotiation Advertisment Register */
630 #define PHY_LPAR 0x05 /* Auto-Negotiation Link Partner Ability Register */
631 #define PHY_ANER 0x06 /* Auto-Negotiation Expansion Register */
632
633 /* BMCR bits */
634 #define PHY_BMCR_RESET 0x8000 /* Soft reset PHY. Self-clearing */
635 #define PHY_BMCR_LOOPBK 0x4000 /* Enable loopback */
636 #define PHY_BMCR_SPEEDSEL 0x2000 /* 1=100Mbps, 0=10Mbps */
637 #define PHY_BMCR_AUTONEGENBL 0x1000 /* Auto-negotiation enabled */
638 #define PHY_BMCR_ISOLATE 0x0400 /* Isolate ML6692 from MII */
639 #define PHY_BMCR_AUTONEGRSTR 0x0200 /* Restart auto-negotiation. Self-clearing */
640 #define PHY_BMCR_DUPLEX 0x0100 /* Full duplex operation */
641 #define PHY_BMCR_COLLTEST 0x0080 /* Enable collision test */
642
643 /* BMSR bits */
644 #define PHY_BMSR_100BT4 0x8000 /* 100Base-T4 capable */
645 #define PHY_BMSR_100BTXFULL 0x4000 /* 100Base-TX full duplex capable */
646 #define PHY_BMSR_100BTXHALF 0x2000 /* 100Base-TX half duplex capable */
647 #define PHY_BMSR_10BTFULL 0x1000 /* 10Base-T full duplex capable */
648 #define PHY_BMSR_10BTHALF 0x0800 /* 10Base-T half duplex capable */
649 #define PHY_BMSR_AUTONEGCOMP 0x0020 /* Auto-negotiation complete */
650 #define PHY_BMSR_CANAUTONEG 0x0008 /* Auto-negotiation supported */
651 #define PHY_BMSR_LINKSTAT 0x0004 /* Link is up */
652 #define PHY_BMSR_EXTENDED 0x0001 /* Extended register capabilities */
653
654 /* ANAR bits */
655 #define PHY_ANAR_NEXTPAGE 0x8000 /* Additional link code word pages */
656 #define PHY_ANAR_TLRFLT 0x2000 /* Remote wire fault detected */
657 #define PHY_ANAR_100BT4 0x0200 /* 100Base-T4 capable */
658 #define PHY_ANAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */
659 #define PHY_ANAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */
660 #define PHY_ANAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */
661 #define PHY_ANAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */
662 #define PHY_ANAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */
663 #define PHY_ANAR_PROTO3 0x0008
664 #define PHY_ANAR_PROTO2 0x0004
665 #define PHY_ANAR_PROTO1 0x0002
666 #define PHY_ANAR_PROTO0 0x0001
667 #define PHY_ANAR_8023 PHY_ANAR_PROTO0
668 #define PHY_ANAR_DINGO PHY_ANAR_100BT+PHY_ANAR_10BT_FD+PHY_ANAR_10BT+PHY_ANAR_8023
669 #define PHY_ANAR_MOHAWK PHY_ANAR_100BT+PHY_ANAR_10BT_FD+PHY_ANAR_10BT+PHY_ANAR_8023
670
671 /* LPAR bits */
672 #define PHY_LPAR_NEXTPAGE 0x8000 /* Additional link code word pages */
673 #define PHY_LPAR_LPACK 0x4000 /* Link partner acknowledged receipt */
674 #define PHY_LPAR_TLRFLT 0x2000 /* Remote wire fault detected */
675 #define PHY_LPAR_100BT4 0x0200 /* 100Base-T4 capable */
676 #define PHY_LPAR_100BTXFULL 0x0100 /* 100Base-TX full duplex capable */
677 #define PHY_LPAR_100BTXHALF 0x0080 /* 100Base-TX half duplex capable */
678 #define PHY_LPAR_10BTFULL 0x0040 /* 10Base-T full duplex capable */
679 #define PHY_LPAR_10BTHALF 0x0020 /* 10Base-T half duplex capable */
680 #define PHY_LPAR_PROTO4 0x0010 /* Protocol selection (00001 = 802.3) */
681 #define PHY_LPAR_PROTO3 0x0008
682 #define PHY_LPAR_PROTO2 0x0004
683 #define PHY_LPAR_PROTO1 0x0002
684 #define PHY_LPAR_PROTO0 0x0001
685
686 /* ANER bits */
687 #define PHY_ANER_MLFAULT 0x0010 /* More than one link is up! */
688 #define PHY_ANER_LPNPABLE 0x0008 /* Link partner supports next page */
689 #define PHY_ANER_NPABLE 0x0004 /* Local port supports next page */
690 #define PHY_ANER_PAGERX 0x0002 /* Page received */
691 #define PHY_ANER_LPAUTONEG 0x0001 /* Link partner can auto-negotiate */
692
693 #endif /* DEV_XE_IF_XEREG_H */
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