1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*------------------------------------------------------------------------
6 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
7 * Rolf Offermanns <rof@sysgo.de>
8 * Copyright (C) 2001 Standard Microsystems Corporation (SMSC)
9 * Developed by Simple Network Magic Corporation (SNMC)
10 * Copyright (C) 1996 by Erik Stahlman (ES)
12 * This file contains register information and access macros for
13 * the LAN91C96 single chip ethernet controller. It is a modified
14 * version of the smc9111.h file.
16 * Information contained in this file was obtained from the LAN91C96
17 * manual from SMC. To get a copy, if you really want one, you can find
18 * information under www.smsc.com.
21 * Erik Stahlman ( erik@vt.edu )
22 * Daris A Nevil ( dnevil@snmc.com )
25 * 04/30/03 Mathijs Haarman Modified smc91111.h (u-boot version)
27 *-------------------------------------------------------------------------
32 #include <asm/types.h>
36 /* I want some simple types */
38 typedef unsigned char byte;
39 typedef unsigned short word;
40 typedef unsigned long int dword;
45 * 0 for normal operation
46 * 1 for slightly more details
47 * >2 for various levels of increasingly useless information
48 * 2 for interrupt tracking, status flags
50 * 4 for complete packet dumps
52 /*#define SMC_DEBUG 0 */
54 /* Because of bank switching, the LAN91xxx uses only 16 I/O ports */
56 #define SMC_IO_EXTENT 16
58 #ifdef CONFIG_CPU_PXA25X
60 #define SMC_IO_SHIFT 0
62 #define SMCREG(edev, r) ((edev)->iobase+((r)<<SMC_IO_SHIFT))
64 #define SMC_inl(edev, r) (*((volatile dword *)SMCREG(edev, r)))
65 #define SMC_inw(edev, r) (*((volatile word *)SMCREG(edev, r)))
66 #define SMC_inb(edev, p) ({ \
67 unsigned int __p = p; \
68 unsigned int __v = SMC_inw(edev, __p & ~1); \
69 if (__p & 1) __v >>= 8; \
73 #define SMC_outl(edev, d, r) (*((volatile dword *)SMCREG(edev, r)) = d)
74 #define SMC_outw(edev, d, r) (*((volatile word *)SMCREG(edev, r)) = d)
75 #define SMC_outb(edev, d, r) ({ word __d = (byte)(d); \
76 word __w = SMC_inw(edev, (r)&~1); \
77 __w &= ((r)&1) ? 0x00FF : 0xFF00; \
78 __w |= ((r)&1) ? __d<<8 : __d; \
79 SMC_outw(edev, __w, (r)&~1); \
82 #define SMC_outsl(edev, r, b, l) ({ int __i; \
85 for (__i = 0; __i < l; __i++) { \
86 SMC_outl(edev, *(__b2 + __i),\
91 #define SMC_outsw(edev, r, b, l) ({ int __i; \
94 for (__i = 0; __i < l; __i++) { \
95 SMC_outw(edev, *(__b2 + __i),\
100 #define SMC_insl(edev, r, b, l) ({ int __i ; \
102 __b2 = (dword *) b; \
103 for (__i = 0; __i < l; __i++) { \
104 *(__b2 + __i) = SMC_inl(edev,\
110 #define SMC_insw(edev, r, b, l) ({ int __i ; \
113 for (__i = 0; __i < l; __i++) { \
114 *(__b2 + __i) = SMC_inw(edev,\
120 #define SMC_insb(edev, r, b, l) ({ int __i ; \
123 for (__i = 0; __i < l; __i++) { \
124 *(__b2 + __i) = SMC_inb(edev,\
130 #else /* if not CONFIG_CPU_PXA25X */
133 * We have only 16 Bit PCMCIA access on Socket 0
136 #define SMC_inw(edev, r) (*((volatile word *)((edev)->iobase+(r))))
137 #define SMC_inb(edev, r) (((r)&1) ? SMC_inw(edev, (r)&~1)>>8 :\
138 SMC_inw(edev, r)&0xFF)
140 #define SMC_outw(edev, d, r) (*((volatile word *)((edev)->iobase+(r))) = d)
141 #define SMC_outb(edev, d, r) ({ word __d = (byte)(d); \
142 word __w = SMC_inw(edev, (r)&~1); \
143 __w &= ((r)&1) ? 0x00FF : 0xFF00; \
144 __w |= ((r)&1) ? __d<<8 : __d; \
145 SMC_outw(edev, __w, (r)&~1); \
147 #define SMC_outsw(edev, r, b, l) ({ int __i; \
150 for (__i = 0; __i < l; __i++) { \
151 SMC_outw(edev, *(__b2 + __i),\
156 #define SMC_insw(edev, r, b, l) ({ int __i ; \
159 for (__i = 0; __i < l; __i++) { \
160 *(__b2 + __i) = SMC_inw(edev,\
169 ****************************************************************************
171 ****************************************************************************
173 #define LAN91C96_BANK_SELECT 14 /* Bank Select Register */
174 #define LAN91C96_BANKSELECT (0x3UC << 0)
182 ****************************************************************************
184 ****************************************************************************
186 #define EEPROM_MAC_OFFSET_1 0x6020
187 #define EEPROM_MAC_OFFSET_2 0x6021
188 #define EEPROM_MAC_OFFSET_3 0x6022
191 ****************************************************************************
192 * Bank 0 Register Map in I/O Space
193 ****************************************************************************
195 #define LAN91C96_TCR 0 /* Transmit Control Register */
196 #define LAN91C96_EPH_STATUS 2 /* EPH Status Register */
197 #define LAN91C96_RCR 4 /* Receive Control Register */
198 #define LAN91C96_COUNTER 6 /* Counter Register */
199 #define LAN91C96_MIR 8 /* Memory Information Register */
200 #define LAN91C96_MCR 10 /* Memory Configuration Register */
203 ****************************************************************************
204 * Transmit Control Register - Bank 0 - Offset 0
205 ****************************************************************************
207 #define LAN91C96_TCR_TXENA (0x1U << 0)
208 #define LAN91C96_TCR_LOOP (0x1U << 1)
209 #define LAN91C96_TCR_FORCOL (0x1U << 2)
210 #define LAN91C96_TCR_TXP_EN (0x1U << 3)
211 #define LAN91C96_TCR_PAD_EN (0x1U << 7)
212 #define LAN91C96_TCR_NOCRC (0x1U << 8)
213 #define LAN91C96_TCR_MON_CSN (0x1U << 10)
214 #define LAN91C96_TCR_FDUPLX (0x1U << 11)
215 #define LAN91C96_TCR_STP_SQET (0x1U << 12)
216 #define LAN91C96_TCR_EPH_LOOP (0x1U << 13)
217 #define LAN91C96_TCR_ETEN_TYPE (0x1U << 14)
218 #define LAN91C96_TCR_FDSE (0x1U << 15)
221 ****************************************************************************
222 * EPH Status Register - Bank 0 - Offset 2
223 ****************************************************************************
225 #define LAN91C96_EPHSR_TX_SUC (0x1U << 0)
226 #define LAN91C96_EPHSR_SNGL_COL (0x1U << 1)
227 #define LAN91C96_EPHSR_MUL_COL (0x1U << 2)
228 #define LAN91C96_EPHSR_LTX_MULT (0x1U << 3)
229 #define LAN91C96_EPHSR_16COL (0x1U << 4)
230 #define LAN91C96_EPHSR_SQET (0x1U << 5)
231 #define LAN91C96_EPHSR_LTX_BRD (0x1U << 6)
232 #define LAN91C96_EPHSR_TX_DEFR (0x1U << 7)
233 #define LAN91C96_EPHSR_WAKEUP (0x1U << 8)
234 #define LAN91C96_EPHSR_LATCOL (0x1U << 9)
235 #define LAN91C96_EPHSR_LOST_CARR (0x1U << 10)
236 #define LAN91C96_EPHSR_EXC_DEF (0x1U << 11)
237 #define LAN91C96_EPHSR_CTR_ROL (0x1U << 12)
239 #define LAN91C96_EPHSR_LINK_OK (0x1U << 14)
240 #define LAN91C96_EPHSR_TX_UNRN (0x1U << 15)
242 #define LAN91C96_EPHSR_ERRORS (LAN91C96_EPHSR_SNGL_COL | \
243 LAN91C96_EPHSR_MUL_COL | \
244 LAN91C96_EPHSR_16COL | \
245 LAN91C96_EPHSR_SQET | \
246 LAN91C96_EPHSR_TX_DEFR | \
247 LAN91C96_EPHSR_LATCOL | \
248 LAN91C96_EPHSR_LOST_CARR | \
249 LAN91C96_EPHSR_EXC_DEF | \
250 LAN91C96_EPHSR_LINK_OK | \
251 LAN91C96_EPHSR_TX_UNRN)
254 ****************************************************************************
255 * Receive Control Register - Bank 0 - Offset 4
256 ****************************************************************************
258 #define LAN91C96_RCR_RX_ABORT (0x1U << 0)
259 #define LAN91C96_RCR_PRMS (0x1U << 1)
260 #define LAN91C96_RCR_ALMUL (0x1U << 2)
261 #define LAN91C96_RCR_RXEN (0x1U << 8)
262 #define LAN91C96_RCR_STRIP_CRC (0x1U << 9)
263 #define LAN91C96_RCR_FILT_CAR (0x1U << 14)
264 #define LAN91C96_RCR_SOFT_RST (0x1U << 15)
267 ****************************************************************************
268 * Counter Register - Bank 0 - Offset 6
269 ****************************************************************************
271 #define LAN91C96_ECR_SNGL_COL (0xFU << 0)
272 #define LAN91C96_ECR_MULT_COL (0xFU << 5)
273 #define LAN91C96_ECR_DEF_TX (0xFU << 8)
274 #define LAN91C96_ECR_EXC_DEF_TX (0xFU << 12)
277 ****************************************************************************
278 * Memory Information Register - Bank 0 - OFfset 8
279 ****************************************************************************
281 #define LAN91C96_MIR_SIZE (0x18 << 0) /* 6144 bytes */
284 ****************************************************************************
285 * Memory Configuration Register - Bank 0 - Offset 10
286 ****************************************************************************
288 #define LAN91C96_MCR_MEM_RES (0xFFU << 0)
289 #define LAN91C96_MCR_MEM_MULT (0x3U << 9)
290 #define LAN91C96_MCR_HIGH_ID (0x3U << 12)
292 #define LAN91C96_MCR_TRANSMIT_PAGES 0x6
295 ****************************************************************************
296 * Bank 1 Register Map in I/O Space
297 ****************************************************************************
299 #define LAN91C96_CONFIG 0 /* Configuration Register */
300 #define LAN91C96_BASE 2 /* Base Address Register */
301 #define LAN91C96_IA0 4 /* Individual Address Register - 0 */
302 #define LAN91C96_IA1 5 /* Individual Address Register - 1 */
303 #define LAN91C96_IA2 6 /* Individual Address Register - 2 */
304 #define LAN91C96_IA3 7 /* Individual Address Register - 3 */
305 #define LAN91C96_IA4 8 /* Individual Address Register - 4 */
306 #define LAN91C96_IA5 9 /* Individual Address Register - 5 */
307 #define LAN91C96_GEN_PURPOSE 10 /* General Address Registers */
308 #define LAN91C96_CONTROL 12 /* Control Register */
311 ****************************************************************************
312 * Configuration Register - Bank 1 - Offset 0
313 ****************************************************************************
315 #define LAN91C96_CR_INT_SEL0 (0x1U << 1)
316 #define LAN91C96_CR_INT_SEL1 (0x1U << 2)
317 #define LAN91C96_CR_RES (0x3U << 3)
318 #define LAN91C96_CR_DIS_LINK (0x1U << 6)
319 #define LAN91C96_CR_16BIT (0x1U << 7)
320 #define LAN91C96_CR_AUI_SELECT (0x1U << 8)
321 #define LAN91C96_CR_SET_SQLCH (0x1U << 9)
322 #define LAN91C96_CR_FULL_STEP (0x1U << 10)
323 #define LAN91C96_CR_NO_WAIT (0x1U << 12)
326 ****************************************************************************
327 * Base Address Register - Bank 1 - Offset 2
328 ****************************************************************************
330 #define LAN91C96_BAR_RA_BITS (0x27U << 0)
331 #define LAN91C96_BAR_ROM_SIZE (0x1U << 6)
332 #define LAN91C96_BAR_A_BITS (0xFFU << 8)
335 ****************************************************************************
336 * Control Register - Bank 1 - Offset 12
337 ****************************************************************************
339 #define LAN91C96_CTR_STORE (0x1U << 0)
340 #define LAN91C96_CTR_RELOAD (0x1U << 1)
341 #define LAN91C96_CTR_EEPROM (0x1U << 2)
342 #define LAN91C96_CTR_TE_ENABLE (0x1U << 5)
343 #define LAN91C96_CTR_CR_ENABLE (0x1U << 6)
344 #define LAN91C96_CTR_LE_ENABLE (0x1U << 7)
345 #define LAN91C96_CTR_BIT_8 (0x1U << 8)
346 #define LAN91C96_CTR_AUTO_RELEASE (0x1U << 11)
347 #define LAN91C96_CTR_WAKEUP_EN (0x1U << 12)
348 #define LAN91C96_CTR_PWRDN (0x1U << 13)
349 #define LAN91C96_CTR_RCV_BAD (0x1U << 14)
352 ****************************************************************************
353 * Bank 2 Register Map in I/O Space
354 ****************************************************************************
356 #define LAN91C96_MMU 0 /* MMU Command Register */
357 #define LAN91C96_AUTO_TX_START 1 /* Auto Tx Start Register */
358 #define LAN91C96_PNR 2 /* Packet Number Register */
359 #define LAN91C96_ARR 3 /* Allocation Result Register */
360 #define LAN91C96_FIFO 4 /* FIFO Ports Register */
361 #define LAN91C96_POINTER 6 /* Pointer Register */
362 #define LAN91C96_DATA_HIGH 8 /* Data High Register */
363 #define LAN91C96_DATA_LOW 10 /* Data Low Register */
364 #define LAN91C96_INT_STATS 12 /* Interrupt Status Register - RO */
365 #define LAN91C96_INT_ACK 12 /* Interrupt Acknowledge Register -WO */
366 #define LAN91C96_INT_MASK 13 /* Interrupt Mask Register */
369 ****************************************************************************
370 * MMU Command Register - Bank 2 - Offset 0
371 ****************************************************************************
373 #define LAN91C96_MMUCR_NO_BUSY (0x1U << 0)
374 #define LAN91C96_MMUCR_N1 (0x1U << 1)
375 #define LAN91C96_MMUCR_N2 (0x1U << 2)
376 #define LAN91C96_MMUCR_COMMAND (0xFU << 4)
377 #define LAN91C96_MMUCR_ALLOC_TX (0x2U << 4) /* WXYZ = 0010 */
378 #define LAN91C96_MMUCR_RESET_MMU (0x4U << 4) /* WXYZ = 0100 */
379 #define LAN91C96_MMUCR_REMOVE_RX (0x6U << 4) /* WXYZ = 0110 */
380 #define LAN91C96_MMUCR_REMOVE_TX (0x7U << 4) /* WXYZ = 0111 */
381 #define LAN91C96_MMUCR_RELEASE_RX (0x8U << 4) /* WXYZ = 1000 */
382 #define LAN91C96_MMUCR_RELEASE_TX (0xAU << 4) /* WXYZ = 1010 */
383 #define LAN91C96_MMUCR_ENQUEUE (0xCU << 4) /* WXYZ = 1100 */
384 #define LAN91C96_MMUCR_RESET_TX (0xEU << 4) /* WXYZ = 1110 */
387 ****************************************************************************
388 * Auto Tx Start Register - Bank 2 - Offset 1
389 ****************************************************************************
391 #define LAN91C96_AUTOTX (0xFFU << 0)
394 ****************************************************************************
395 * Packet Number Register - Bank 2 - Offset 2
396 ****************************************************************************
398 #define LAN91C96_PNR_TX (0x1FU << 0)
401 ****************************************************************************
402 * Allocation Result Register - Bank 2 - Offset 3
403 ****************************************************************************
405 #define LAN91C96_ARR_ALLOC_PN (0x7FU << 0)
406 #define LAN91C96_ARR_FAILED (0x1U << 7)
409 ****************************************************************************
410 * FIFO Ports Register - Bank 2 - Offset 4
411 ****************************************************************************
413 #define LAN91C96_FIFO_TX_DONE_PN (0x1FU << 0)
414 #define LAN91C96_FIFO_TEMPTY (0x1U << 7)
415 #define LAN91C96_FIFO_RX_DONE_PN (0x1FU << 8)
416 #define LAN91C96_FIFO_RXEMPTY (0x1U << 15)
419 ****************************************************************************
420 * Pointer Register - Bank 2 - Offset 6
421 ****************************************************************************
423 #define LAN91C96_PTR_LOW (0xFFU << 0)
424 #define LAN91C96_PTR_HIGH (0x7U << 8)
425 #define LAN91C96_PTR_AUTO_TX (0x1U << 11)
426 #define LAN91C96_PTR_ETEN (0x1U << 12)
427 #define LAN91C96_PTR_READ (0x1U << 13)
428 #define LAN91C96_PTR_AUTO_INCR (0x1U << 14)
429 #define LAN91C96_PTR_RCV (0x1U << 15)
431 #define LAN91C96_PTR_RX_FRAME (LAN91C96_PTR_RCV | \
432 LAN91C96_PTR_AUTO_INCR | \
436 ****************************************************************************
437 * Data Register - Bank 2 - Offset 8
438 ****************************************************************************
440 #define LAN91C96_CONTROL_CRC (0x1U << 4) /* CRC bit */
441 #define LAN91C96_CONTROL_ODD (0x1U << 5) /* ODD bit */
444 ****************************************************************************
445 * Interrupt Status Register - Bank 2 - Offset 12
446 ****************************************************************************
448 #define LAN91C96_IST_RCV_INT (0x1U << 0)
449 #define LAN91C96_IST_TX_INT (0x1U << 1)
450 #define LAN91C96_IST_TX_EMPTY_INT (0x1U << 2)
451 #define LAN91C96_IST_ALLOC_INT (0x1U << 3)
452 #define LAN91C96_IST_RX_OVRN_INT (0x1U << 4)
453 #define LAN91C96_IST_EPH_INT (0x1U << 5)
454 #define LAN91C96_IST_ERCV_INT (0x1U << 6)
455 #define LAN91C96_IST_RX_IDLE_INT (0x1U << 7)
458 ****************************************************************************
459 * Interrupt Acknowledge Register - Bank 2 - Offset 12
460 ****************************************************************************
462 #define LAN91C96_ACK_TX_INT (0x1U << 1)
463 #define LAN91C96_ACK_TX_EMPTY_INT (0x1U << 2)
464 #define LAN91C96_ACK_RX_OVRN_INT (0x1U << 4)
465 #define LAN91C96_ACK_ERCV_INT (0x1U << 6)
468 ****************************************************************************
469 * Interrupt Mask Register - Bank 2 - Offset 13
470 ****************************************************************************
472 #define LAN91C96_MSK_RCV_INT (0x1U << 0)
473 #define LAN91C96_MSK_TX_INT (0x1U << 1)
474 #define LAN91C96_MSK_TX_EMPTY_INT (0x1U << 2)
475 #define LAN91C96_MSK_ALLOC_INT (0x1U << 3)
476 #define LAN91C96_MSK_RX_OVRN_INT (0x1U << 4)
477 #define LAN91C96_MSK_EPH_INT (0x1U << 5)
478 #define LAN91C96_MSK_ERCV_INT (0x1U << 6)
479 #define LAN91C96_MSK_TX_IDLE_INT (0x1U << 7)
482 ****************************************************************************
483 * Bank 3 Register Map in I/O Space
484 **************************************************************************
486 #define LAN91C96_MGMT_MDO (0x1U << 0)
487 #define LAN91C96_MGMT_MDI (0x1U << 1)
488 #define LAN91C96_MGMT_MCLK (0x1U << 2)
489 #define LAN91C96_MGMT_MDOE (0x1U << 3)
490 #define LAN91C96_MGMT_LOW_ID (0x3U << 4)
491 #define LAN91C96_MGMT_IOS0 (0x1U << 8)
492 #define LAN91C96_MGMT_IOS1 (0x1U << 9)
493 #define LAN91C96_MGMT_IOS2 (0x1U << 10)
494 #define LAN91C96_MGMT_nXNDEC (0x1U << 11)
495 #define LAN91C96_MGMT_HIGH_ID (0x3U << 12)
498 ****************************************************************************
499 * Revision Register - Bank 3 - Offset 10
500 ****************************************************************************
502 #define LAN91C96_REV_REVID (0xFU << 0)
503 #define LAN91C96_REV_CHIPID (0xFU << 4)
506 ****************************************************************************
507 * Early RCV Register - Bank 3 - Offset 12
508 ****************************************************************************
510 #define LAN91C96_ERCV_THRESHOLD (0x1FU << 0)
511 #define LAN91C96_ERCV_RCV_DISCRD (0x1U << 7)
514 ****************************************************************************
515 * PCMCIA Configuration Registers
516 ****************************************************************************
518 #define LAN91C96_ECOR 0x8000 /* Ethernet Configuration Register */
519 #define LAN91C96_ECSR 0x8002 /* Ethernet Configuration and Status */
522 ****************************************************************************
523 * PCMCIA Ethernet Configuration Option Register (ECOR)
524 ****************************************************************************
526 #define LAN91C96_ECOR_ENABLE (0x1U << 0)
527 #define LAN91C96_ECOR_WR_ATTRIB (0x1U << 2)
528 #define LAN91C96_ECOR_LEVEL_REQ (0x1U << 6)
529 #define LAN91C96_ECOR_SRESET (0x1U << 7)
532 ****************************************************************************
533 * PCMCIA Ethernet Configuration and Status Register (ECSR)
534 ****************************************************************************
536 #define LAN91C96_ECSR_INTR (0x1U << 1)
537 #define LAN91C96_ECSR_PWRDWN (0x1U << 2)
538 #define LAN91C96_ECSR_IOIS8 (0x1U << 5)
541 ****************************************************************************
542 * Receive Frame Status Word - See page 38 of the LAN91C96 specification.
543 ****************************************************************************
545 #define LAN91C96_TOO_SHORT (0x1U << 10)
546 #define LAN91C96_TOO_LONG (0x1U << 11)
547 #define LAN91C96_ODD_FRM (0x1U << 12)
548 #define LAN91C96_BAD_CRC (0x1U << 13)
549 #define LAN91C96_BROD_CAST (0x1U << 14)
550 #define LAN91C96_ALGN_ERR (0x1U << 15)
552 #define FRAME_FILTER (LAN91C96_TOO_SHORT | LAN91C96_TOO_LONG | LAN91C96_BAD_CRC | LAN91C96_ALGN_ERR)
555 ****************************************************************************
556 * Default MAC Address
557 ****************************************************************************
559 #define MAC_DEF_HI 0x0800
560 #define MAC_DEF_MED 0x3333
561 #define MAC_DEF_LO 0x0100
564 ****************************************************************************
565 * Default I/O Signature - 0x33
566 ****************************************************************************
568 #define LAN91C96_LOW_SIGNATURE (0x33U << 0)
569 #define LAN91C96_HIGH_SIGNATURE (0x33U << 8)
570 #define LAN91C96_SIGNATURE (LAN91C96_HIGH_SIGNATURE | LAN91C96_LOW_SIGNATURE)
572 #define LAN91C96_MAX_PAGES 6 /* Maximum number of 256 pages. */
573 #define ETHERNET_MAX_LENGTH 1514
576 /*-------------------------------------------------------------------------
577 * I define some macros to make it easier to do somewhat common
578 * or slightly complicated, repeated tasks.
579 *-------------------------------------------------------------------------
582 /* select a register bank, 0 to 3 */
584 #define SMC_SELECT_BANK(edev, x) { SMC_outw(edev, x, LAN91C96_BANK_SELECT); }
586 /* this enables an interrupt in the interrupt mask register */
587 #define SMC_ENABLE_INT(edev, x) {\
589 SMC_SELECT_BANK(edev, 2);\
590 mask = SMC_inb(edev, LAN91C96_INT_MASK);\
592 SMC_outb(edev, mask, LAN91C96_INT_MASK); \
595 /* this disables an interrupt from the interrupt mask register */
597 #define SMC_DISABLE_INT(edev, x) {\
599 SMC_SELECT_BANK(edev, 2);\
600 mask = SMC_inb(edev, LAN91C96_INT_MASK);\
602 SMC_outb(edev, mask, LAN91C96_INT_MASK); \
605 /*----------------------------------------------------------------------
606 * Define the interrupts that I want to receive from the card
609 * LAN91C96_IST_EPH_INT, for nasty errors
610 * LAN91C96_IST_RCV_INT, for happy received packets
611 * LAN91C96_IST_RX_OVRN_INT, because I have to kick the receiver
612 *-------------------------------------------------------------------------
614 #define SMC_INTERRUPT_MASK (LAN91C96_IST_EPH_INT | LAN91C96_IST_RX_OVRN_INT | LAN91C96_IST_RCV_INT)
616 #endif /* _LAN91C96_H_ */