1 /*------------------------------------------------------------------------
4 * Copyright (C) 1998 by Daniel Engström
5 * Copyright (C) 1996 by Erik Stahlman
7 * This software may be used and distributed according to the terms
8 * of the GNU Public License, incorporated herein by reference.
10 * This file contains register information and access macros for
11 * the SMC91xxx chipset.
13 * Information contained in this file was obtained from the SMC91C94
14 * manual from SMC. To get a copy, if you really want one, you can find
15 * information under www.smsc.com in the components division.
16 * ( this thanks to advice from Donald Becker ).
19 * Daniel Engström <daniel.engstrom@riksnett.no>
20 * Erik Stahlman <erik@vt.edu>
23 * 96-01-06 Erik Stahlman moved definitions here from main .c
25 * 96-01-19 Erik Stahlman polished this up some, and added
26 * better error handling
27 * 98-09-25 Daniel Engström adjusted for Etherboot
28 * 98-09-27 Daniel Engström moved some static strings back to the
30 * --------------------------------------------------------------------------*/
34 /* I want some simple types */
35 typedef unsigned char byte
;
36 typedef unsigned short word
;
37 typedef unsigned long int dword
;
39 /*---------------------------------------------------------------
41 * A description of the SMC registers is probably in order here,
42 * although for details, the SMC datasheet is invaluable.
44 * Basically, the chip has 4 banks of registers ( 0 to 3 ), which
45 * are accessed by writing a number into the BANK_SELECT register
46 * ( I also use a SMC_SELECT_BANK macro for this ).
48 * The banks are configured so that for most purposes, bank 2 is all
49 * that is needed for simple run time tasks.
50 * ----------------------------------------------------------------------*/
53 * Bank Select Register:
57 * yyyy yyyy = 0x33, for identification purposes.
59 #define BANK_SELECT 14
63 #define TCR 0 /* transmit control register */
64 #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */
65 #define TCR_FDUPLX 0x0800 /* receive packets sent out */
66 #define TCR_STP_SQET 0x1000 /* stop transmitting if Signal quality error */
67 #define TCR_MON_CNS 0x0400 /* monitors the carrier status */
68 #define TCR_PAD_ENABLE 0x0080 /* pads short packets to 64 bytes */
70 #define TCR_CLEAR 0 /* do NOTHING */
71 /* the normal settings for the TCR register : */
72 #define TCR_NORMAL (TCR_ENABLE | TCR_PAD_ENABLE)
76 #define ES_LINK_OK 0x4000 /* is the link integrity ok ? */
79 #define RCR_SOFTRESET 0x8000 /* resets the chip */
80 #define RCR_STRIP_CRC 0x200 /* strips CRC */
81 #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */
82 #define RCR_ALMUL 0x4 /* receive all multicast packets */
83 #define RCR_PROMISC 0x2 /* enable promiscuous mode */
85 /* the normal settings for the RCR register : */
86 #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE)
87 #define RCR_CLEAR 0x0 /* set it to a base state */
94 // Receive/Phy Control Register
96 #define RPC_REG 0x000A
97 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
98 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
99 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
100 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
101 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
102 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
103 #define RPC_LED_RES (0x01) // LED = Reserved
104 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
105 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
106 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
107 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
108 #define RPC_LED_TX (0x06) // LED = TX packet occurred
109 #define RPC_LED_RX (0x07) // LED = RX packet occurred
110 #define RPC_DEFAULT (RPC_ANEG | (RPC_LED_100 << RPC_LSXA_SHFT) | (RPC_LED_FD << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
112 // Receive/Phy Control Register
114 #define RPC_REG 0x000A
115 #define RPC_SPEED 0x2000 // When 1 PHY is in 100Mbps mode.
116 #define RPC_DPLX 0x1000 // When 1 PHY is in Full-Duplex Mode
117 #define RPC_ANEG 0x0800 // When 1 PHY is in Auto-Negotiate Mode
118 #define RPC_LSXA_SHFT 5 // Bits to shift LS2A,LS1A,LS0A to lsb
119 #define RPC_LSXB_SHFT 2 // Bits to get LS2B,LS1B,LS0B to lsb
120 #define RPC_LED_100_10 (0x00) // LED = 100Mbps OR's with 10Mbps link detect
121 #define RPC_LED_RES (0x01) // LED = Reserved
122 #define RPC_LED_10 (0x02) // LED = 10Mbps link detect
123 #define RPC_LED_FD (0x03) // LED = Full Duplex Mode
124 #define RPC_LED_TX_RX (0x04) // LED = TX or RX packet occurred
125 #define RPC_LED_100 (0x05) // LED = 100Mbps link dectect
126 #define RPC_LED_TX (0x06) // LED = TX packet occurred
127 #define RPC_LED_RX (0x07) // LED = RX packet occurred
128 #define RPC_DEFAULT (RPC_ANEG | (RPC_LED_100 << RPC_LSXA_SHFT) | (RPC_LED_FD << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX)
132 #define CFG_AUI_SELECT 0x100
139 #define CTL_POWERDOWN 0x2000
140 #define CTL_LE_ENABLE 0x80
141 #define CTL_CR_ENABLE 0x40
142 #define CTL_TE_ENABLE 0x0020
143 #define CTL_AUTO_RELEASE 0x0800
144 #define CTL_EPROM_ACCESS 0x0003 /* high if Eprom is being read */
148 #define MC_BUSY 1 /* only readable bit in the register */
150 #define MC_ALLOC 0x20 /* or with number of 256 byte packets */
151 #define MC_RESET 0x40
152 #define MC_REMOVE 0x60 /* remove the current rx packet */
153 #define MC_RELEASE 0x80 /* remove and release the current rx packet */
154 #define MC_FREEPKT 0xA0 /* Release packet in PNR register */
155 #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */
160 #define FP_RXEMPTY 0x8000
161 #define FP_TXEMPTY 0x80
164 #define PTR_READ 0x2000
165 #define PTR_RCV 0x8000
166 #define PTR_AUTOINC 0x4000
167 #define PTR_AUTO_INC 0x0040
174 #define IM_RCV_INT 0x1
175 #define IM_TX_INT 0x2
176 #define IM_TX_EMPTY_INT 0x4
177 #define IM_ALLOC_INT 0x8
178 #define IM_RX_OVRN_INT 0x10
179 #define IM_EPH_INT 0x20
180 #define IM_ERCV_INT 0x40 /* not on SMC9192 */
188 #define REVISION 10 /* ( hi: chip id low: rev # ) */
190 // Management Interface Register (MII)
191 #define MII_REG 0x0008
192 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
193 #define MII_MDOE 0x0008 // MII Output Enable
194 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
195 #define MII_MDI 0x0002 // MII Input, pin MDI
196 #define MII_MDO 0x0001 // MII Output, pin MDO
198 /* this is NOT on SMC9192 */
201 /* Note that 9194 and 9196 have the smame chip id,
202 * the 9196 will have revisions starting at 6 */
208 #define CHIP_91100FD 8
213 * Transmit status bits
215 #define TS_SUCCESS 0x0001
216 #define TS_LOSTCAR 0x0400
217 #define TS_LATCOL 0x0200
218 #define TS_16COL 0x0010
221 * Receive status bits
223 #define RS_ALGNERR 0x8000
224 #define RS_BADCRC 0x2000
225 #define RS_ODDFRAME 0x1000
226 #define RS_TOOLONG 0x0800
227 #define RS_TOOSHORT 0x0400
228 #define RS_MULTICAST 0x0001
229 #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT)
231 // Management Interface Register (MII)
232 #define MII_REG 0x0008
233 #define MII_MSK_CRS100 0x4000 // Disables CRS100 detection during tx half dup
234 #define MII_MDOE 0x0008 // MII Output Enable
235 #define MII_MCLK 0x0004 // MII Clock, pin MDCLK
236 #define MII_MDI 0x0002 // MII Input, pin MDI
237 #define MII_MDO 0x0001 // MII Output, pin MDO
239 // PHY Register Addresses (LAN91C111 Internal PHY)
241 // PHY Control Register
242 #define PHY_CNTL_REG 0x00
243 #define PHY_CNTL_RST 0x8000 // 1=PHY Reset
244 #define PHY_CNTL_LPBK 0x4000 // 1=PHY Loopback
245 #define PHY_CNTL_SPEED 0x2000 // 1=100Mbps, 0=10Mpbs
246 #define PHY_CNTL_ANEG_EN 0x1000 // 1=Enable Auto negotiation
247 #define PHY_CNTL_PDN 0x0800 // 1=PHY Power Down mode
248 #define PHY_CNTL_MII_DIS 0x0400 // 1=MII 4 bit interface disabled
249 #define PHY_CNTL_ANEG_RST 0x0200 // 1=Reset Auto negotiate
250 #define PHY_CNTL_DPLX 0x0100 // 1=Full Duplex, 0=Half Duplex
251 #define PHY_CNTL_COLTST 0x0080 // 1= MII Colision Test
253 // PHY Status Register
254 #define PHY_STAT_REG 0x01
255 #define PHY_STAT_CAP_T4 0x8000 // 1=100Base-T4 capable
256 #define PHY_STAT_CAP_TXF 0x4000 // 1=100Base-X full duplex capable
257 #define PHY_STAT_CAP_TXH 0x2000 // 1=100Base-X half duplex capable
258 #define PHY_STAT_CAP_TF 0x1000 // 1=10Mbps full duplex capable
259 #define PHY_STAT_CAP_TH 0x0800 // 1=10Mbps half duplex capable
260 #define PHY_STAT_CAP_SUPR 0x0040 // 1=recv mgmt frames with not preamble
261 #define PHY_STAT_ANEG_ACK 0x0020 // 1=ANEG has completed
262 #define PHY_STAT_REM_FLT 0x0010 // 1=Remote Fault detected
263 #define PHY_STAT_CAP_ANEG 0x0008 // 1=Auto negotiate capable
264 #define PHY_STAT_LINK 0x0004 // 1=valid link
265 #define PHY_STAT_JAB 0x0002 // 1=10Mbps jabber condition
266 #define PHY_STAT_EXREG 0x0001 // 1=extended registers implemented
268 // PHY Identifier Registers
269 #define PHY_ID1_REG 0x02 // PHY Identifier 1
270 #define PHY_ID2_REG 0x03 // PHY Identifier 2
272 // PHY Auto-Negotiation Advertisement Register
273 #define PHY_AD_REG 0x04
274 #define PHY_AD_NP 0x8000 // 1=PHY requests exchange of Next Page
275 #define PHY_AD_ACK 0x4000 // 1=got link code word from remote
276 #define PHY_AD_RF 0x2000 // 1=advertise remote fault
277 #define PHY_AD_T4 0x0200 // 1=PHY is capable of 100Base-T4
278 #define PHY_AD_TX_FDX 0x0100 // 1=PHY is capable of 100Base-TX FDPLX
279 #define PHY_AD_TX_HDX 0x0080 // 1=PHY is capable of 100Base-TX HDPLX
280 #define PHY_AD_10_FDX 0x0040 // 1=PHY is capable of 10Base-T FDPLX
281 #define PHY_AD_10_HDX 0x0020 // 1=PHY is capable of 10Base-T HDPLX
282 #define PHY_AD_CSMA 0x0001 // 1=PHY is capable of 802.3 CMSA
284 // PHY Auto-negotiation Remote End Capability Register
285 #define PHY_RMT_REG 0x05
286 // Uses same bit definitions as PHY_AD_REG
288 // PHY Configuration Register 1
289 #define PHY_CFG1_REG 0x10
290 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
291 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
292 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
293 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
294 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
295 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
296 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
297 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
298 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
299 #define PHY_CFG1_TLVL_MASK 0x003C
300 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
303 // PHY Configuration Register 2
304 #define PHY_CFG2_REG 0x11
305 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
306 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
307 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
308 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
310 // PHY Status Output (and Interrupt status) Register
311 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
312 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
313 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
314 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
315 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
316 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
317 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
318 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
319 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
320 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
321 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
323 // PHY Interrupt/Status Mask Register
324 #define PHY_MASK_REG 0x13 // Interrupt Mask
325 // Uses the same bit definitions as PHY_INT_REG
328 // PHY Register Addresses (LAN91C111 Internal PHY)
330 // PHY Control Register
331 #define PHY_CNTL_REG 0x00
332 #define PHY_CNTL_RST 0x8000 // 1=PHY Reset
333 #define PHY_CNTL_LPBK 0x4000 // 1=PHY Loopback
334 #define PHY_CNTL_SPEED 0x2000 // 1=100Mbps, 0=10Mpbs
335 #define PHY_CNTL_ANEG_EN 0x1000 // 1=Enable Auto negotiation
336 #define PHY_CNTL_PDN 0x0800 // 1=PHY Power Down mode
337 #define PHY_CNTL_MII_DIS 0x0400 // 1=MII 4 bit interface disabled
338 #define PHY_CNTL_ANEG_RST 0x0200 // 1=Reset Auto negotiate
339 #define PHY_CNTL_DPLX 0x0100 // 1=Full Duplex, 0=Half Duplex
340 #define PHY_CNTL_COLTST 0x0080 // 1= MII Colision Test
342 // PHY Status Register
343 #define PHY_STAT_REG 0x01
344 #define PHY_STAT_CAP_T4 0x8000 // 1=100Base-T4 capable
345 #define PHY_STAT_CAP_TXF 0x4000 // 1=100Base-X full duplex capable
346 #define PHY_STAT_CAP_TXH 0x2000 // 1=100Base-X half duplex capable
347 #define PHY_STAT_CAP_TF 0x1000 // 1=10Mbps full duplex capable
348 #define PHY_STAT_CAP_TH 0x0800 // 1=10Mbps half duplex capable
349 #define PHY_STAT_CAP_SUPR 0x0040 // 1=recv mgmt frames with not preamble
350 #define PHY_STAT_ANEG_ACK 0x0020 // 1=ANEG has completed
351 #define PHY_STAT_REM_FLT 0x0010 // 1=Remote Fault detected
352 #define PHY_STAT_CAP_ANEG 0x0008 // 1=Auto negotiate capable
353 #define PHY_STAT_LINK 0x0004 // 1=valid link
354 #define PHY_STAT_JAB 0x0002 // 1=10Mbps jabber condition
355 #define PHY_STAT_EXREG 0x0001 // 1=extended registers implemented
357 // PHY Identifier Registers
358 #define PHY_ID1_REG 0x02 // PHY Identifier 1
359 #define PHY_ID2_REG 0x03 // PHY Identifier 2
361 // PHY Auto-Negotiation Advertisement Register
362 #define PHY_AD_REG 0x04
363 #define PHY_AD_NP 0x8000 // 1=PHY requests exchange of Next Page
364 #define PHY_AD_ACK 0x4000 // 1=got link code word from remote
365 #define PHY_AD_RF 0x2000 // 1=advertise remote fault
366 #define PHY_AD_T4 0x0200 // 1=PHY is capable of 100Base-T4
367 #define PHY_AD_TX_FDX 0x0100 // 1=PHY is capable of 100Base-TX FDPLX
368 #define PHY_AD_TX_HDX 0x0080 // 1=PHY is capable of 100Base-TX HDPLX
369 #define PHY_AD_10_FDX 0x0040 // 1=PHY is capable of 10Base-T FDPLX
370 #define PHY_AD_10_HDX 0x0020 // 1=PHY is capable of 10Base-T HDPLX
371 #define PHY_AD_CSMA 0x0001 // 1=PHY is capable of 802.3 CMSA
373 // PHY Auto-negotiation Remote End Capability Register
374 #define PHY_RMT_REG 0x05
375 // Uses same bit definitions as PHY_AD_REG
377 // PHY Configuration Register 1
378 #define PHY_CFG1_REG 0x10
379 #define PHY_CFG1_LNKDIS 0x8000 // 1=Rx Link Detect Function disabled
380 #define PHY_CFG1_XMTDIS 0x4000 // 1=TP Transmitter Disabled
381 #define PHY_CFG1_XMTPDN 0x2000 // 1=TP Transmitter Powered Down
382 #define PHY_CFG1_BYPSCR 0x0400 // 1=Bypass scrambler/descrambler
383 #define PHY_CFG1_UNSCDS 0x0200 // 1=Unscramble Idle Reception Disable
384 #define PHY_CFG1_EQLZR 0x0100 // 1=Rx Equalizer Disabled
385 #define PHY_CFG1_CABLE 0x0080 // 1=STP(150ohm), 0=UTP(100ohm)
386 #define PHY_CFG1_RLVL0 0x0040 // 1=Rx Squelch level reduced by 4.5db
387 #define PHY_CFG1_TLVL_SHIFT 2 // Transmit Output Level Adjust
388 #define PHY_CFG1_TLVL_MASK 0x003C
389 #define PHY_CFG1_TRF_MASK 0x0003 // Transmitter Rise/Fall time
392 // PHY Configuration Register 2
393 #define PHY_CFG2_REG 0x11
394 #define PHY_CFG2_APOLDIS 0x0020 // 1=Auto Polarity Correction disabled
395 #define PHY_CFG2_JABDIS 0x0010 // 1=Jabber disabled
396 #define PHY_CFG2_MREG 0x0008 // 1=Multiple register access (MII mgt)
397 #define PHY_CFG2_INTMDIO 0x0004 // 1=Interrupt signaled with MDIO pulseo
399 // PHY Status Output (and Interrupt status) Register
400 #define PHY_INT_REG 0x12 // Status Output (Interrupt Status)
401 #define PHY_INT_INT 0x8000 // 1=bits have changed since last read
402 #define PHY_INT_LNKFAIL 0x4000 // 1=Link Not detected
403 #define PHY_INT_LOSSSYNC 0x2000 // 1=Descrambler has lost sync
404 #define PHY_INT_CWRD 0x1000 // 1=Invalid 4B5B code detected on rx
405 #define PHY_INT_SSD 0x0800 // 1=No Start Of Stream detected on rx
406 #define PHY_INT_ESD 0x0400 // 1=No End Of Stream detected on rx
407 #define PHY_INT_RPOL 0x0200 // 1=Reverse Polarity detected
408 #define PHY_INT_JAB 0x0100 // 1=Jabber detected
409 #define PHY_INT_SPDDET 0x0080 // 1=100Base-TX mode, 0=10Base-T mode
410 #define PHY_INT_DPLXDET 0x0040 // 1=Device in Full Duplex
412 // PHY Interrupt/Status Mask Register
413 #define PHY_MASK_REG 0x13 // Interrupt Mask
414 // Uses the same bit definitions as PHY_INT_REG
417 /*-------------------------------------------------------------------------
418 * I define some macros to make it easier to do somewhat common
419 * or slightly complicated, repeated tasks.
420 --------------------------------------------------------------------------*/
422 /* select a register bank, 0 to 3 */
424 #define SMC_SELECT_BANK(x, y) { _outw( y, x + BANK_SELECT ); }
426 /* define a small delay for the reset */
427 #define SMC_DELAY(x) { inw( x + RCR );\
432 #endif /* _SMC_9000_H_ */