2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * (C) Copyright 2007 Freescale Semiconductor, Inc.
6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
8 * See file CREDITS for list of people who contributed to this
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
33 #include <asm/immap.h>
42 /* Ethernet Transmit and Receive Buffers */
43 #define DBUF_LENGTH 1520
45 #define PKT_MAXBUF_SIZE 1518
46 #define PKT_MINBUF_SIZE 64
47 #define PKT_MAXBLR_SIZE 1520
48 #define LAST_PKTBUFSRX PKTBUFSRX - 1
49 #define BD_ENET_RX_W_E (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
50 #define BD_ENET_TX_RDY_LST (BD_ENET_TX_READY | BD_ENET_TX_LAST)
52 DECLARE_GLOBAL_DATA_PTR;
54 #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
56 struct fec_info_s fec_info[] = {
57 #ifdef CFG_FEC0_IOBASE
60 CFG_FEC0_IOBASE, /* io base */
61 CFG_FEC0_PINMUX, /* gpio pin muxing */
62 CFG_FEC0_MIIBASE, /* mii base */
64 0, /* duplex and speed */
72 0, /* initialized flag */
75 #ifdef CFG_FEC1_IOBASE
78 CFG_FEC1_IOBASE, /* io base */
79 CFG_FEC1_PINMUX, /* gpio pin muxing */
80 CFG_FEC1_MIIBASE, /* mii base */
82 0, /* duplex and speed */
84 0, /* phy name init */
90 0, /* initialized flag */
95 int fec_send(struct eth_device *dev, volatile void *packet, int length);
96 int fec_recv(struct eth_device *dev);
97 int fec_init(struct eth_device *dev, bd_t * bd);
98 void fec_halt(struct eth_device *dev);
99 void fec_reset(struct eth_device *dev);
101 extern int fecpin_setclear(struct eth_device *dev, int setclear);
103 #ifdef CFG_DISCOVER_PHY
104 extern void __mii_init(void);
105 extern uint mii_send(uint mii_cmd);
106 extern int mii_discover_phy(struct eth_device *dev);
107 extern int mcffec_miiphy_read(char *devname, unsigned char addr,
108 unsigned char reg, unsigned short *value);
109 extern int mcffec_miiphy_write(char *devname, unsigned char addr,
110 unsigned char reg, unsigned short value);
113 void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd)
115 if ((dup_spd >> 16) == FULL) {
116 /* Set maximum frame length */
117 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
118 FEC_RCR_PROM | 0x100;
119 fecp->tcr = FEC_TCR_FDEN;
121 /* Half duplex mode */
122 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
123 FEC_RCR_MII_MODE | FEC_RCR_DRT;
124 fecp->tcr &= ~FEC_TCR_FDEN;
127 if ((dup_spd & 0xFFFF) == _100BASET) {
131 bd->bi_ethspeed = 100;
136 bd->bi_ethspeed = 10;
140 int fec_send(struct eth_device *dev, volatile void *packet, int length)
142 struct fec_info_s *info = dev->priv;
143 volatile fec_t *fecp = (fec_t *) (info->iobase);
147 miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
153 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
154 (j < MCFFEC_TOUT_LOOP)) {
158 if (j >= MCFFEC_TOUT_LOOP) {
159 printf("TX not ready\n");
162 info->txbd[info->txIdx].cbd_bufaddr = (uint) packet;
163 info->txbd[info->txIdx].cbd_datlen = length;
164 info->txbd[info->txIdx].cbd_sc |= BD_ENET_TX_RDY_LST;
166 /* Activate transmit Buffer Descriptor polling */
167 fecp->tdar = 0x01000000; /* Descriptor polling active */
169 #ifdef CFG_UNIFY_CACHE
173 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
174 (j < MCFFEC_TOUT_LOOP)) {
178 if (j >= MCFFEC_TOUT_LOOP) {
179 printf("TX timeout\n");
183 printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n",
184 __FILE__, __LINE__, __FUNCTION__, j,
185 info->txbd[info->txIdx].cbd_sc,
186 (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2);
189 /* return only status bits */
190 rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
191 info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
196 int fec_recv(struct eth_device *dev)
198 struct fec_info_s *info = dev->priv;
199 volatile fec_t *fecp = (fec_t *) (info->iobase);
203 #ifdef CFG_UNIFY_CACHE
206 /* section 16.9.23.2 */
207 if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
209 break; /* nothing received - leave for() loop */
212 length = info->rxbd[info->rxIdx].cbd_datlen;
214 if (info->rxbd[info->rxIdx].cbd_sc & 0x003f) {
215 printf("%s[%d] err: %x\n",
216 __FUNCTION__, __LINE__,
217 info->rxbd[info->rxIdx].cbd_sc);
219 printf("%s[%d] err: %x\n",
220 __FUNCTION__, __LINE__,
221 info->rxbd[info->rxIdx].cbd_sc);
226 /* Pass the packet up to the protocol layers. */
227 NetReceive(NetRxPackets[info->rxIdx], length);
229 fecp->eir |= FEC_EIR_RXF;
232 /* Give the buffer back to the FEC. */
233 info->rxbd[info->rxIdx].cbd_datlen = 0;
235 /* wrap around buffer index when necessary */
236 if (info->rxIdx == LAST_PKTBUFSRX) {
237 info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E;
240 info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
244 /* Try to fill Buffer Descriptors */
245 fecp->rdar = 0x01000000; /* Descriptor polling active */
252 void dbgFecRegs(struct eth_device *dev)
254 struct fec_info_s *info = dev->priv;
255 volatile fec_t *fecp = (fec_t *) (info->iobase);
258 printf("ievent %x - %x\n", (int)&fecp->eir, fecp->eir);
259 printf("imask %x - %x\n", (int)&fecp->eimr, fecp->eimr);
260 printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar);
261 printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar);
262 printf("ecntrl %x - %x\n", (int)&fecp->ecr, fecp->ecr);
263 printf("mii_mframe %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
264 printf("mii_speed %x - %x\n", (int)&fecp->mscr, fecp->mscr);
265 printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
266 printf("r_cntrl %x - %x\n", (int)&fecp->rcr, fecp->rcr);
267 printf("x_cntrl %x - %x\n", (int)&fecp->tcr, fecp->tcr);
268 printf("padr_l %x - %x\n", (int)&fecp->palr, fecp->palr);
269 printf("padr_u %x - %x\n", (int)&fecp->paur, fecp->paur);
270 printf("op_pause %x - %x\n", (int)&fecp->opd, fecp->opd);
271 printf("iadr_u %x - %x\n", (int)&fecp->iaur, fecp->iaur);
272 printf("iadr_l %x - %x\n", (int)&fecp->ialr, fecp->ialr);
273 printf("gadr_u %x - %x\n", (int)&fecp->gaur, fecp->gaur);
274 printf("gadr_l %x - %x\n", (int)&fecp->galr, fecp->galr);
275 printf("x_wmrk %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
276 printf("r_bound %x - %x\n", (int)&fecp->frbr, fecp->frbr);
277 printf("r_fstart %x - %x\n", (int)&fecp->frsr, fecp->frsr);
278 printf("r_drng %x - %x\n", (int)&fecp->erdsr, fecp->erdsr);
279 printf("x_drng %x - %x\n", (int)&fecp->etdsr, fecp->etdsr);
280 printf("r_bufsz %x - %x\n", (int)&fecp->emrbr, fecp->emrbr);
283 printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop,
285 printf("rmon_t_packets %x - %x\n", (int)&fecp->rmon_t_packets,
286 fecp->rmon_t_packets);
287 printf("rmon_t_bc_pkt %x - %x\n", (int)&fecp->rmon_t_bc_pkt,
288 fecp->rmon_t_bc_pkt);
289 printf("rmon_t_mc_pkt %x - %x\n", (int)&fecp->rmon_t_mc_pkt,
290 fecp->rmon_t_mc_pkt);
291 printf("rmon_t_crc_align %x - %x\n", (int)&fecp->rmon_t_crc_align,
292 fecp->rmon_t_crc_align);
293 printf("rmon_t_undersize %x - %x\n", (int)&fecp->rmon_t_undersize,
294 fecp->rmon_t_undersize);
295 printf("rmon_t_oversize %x - %x\n", (int)&fecp->rmon_t_oversize,
296 fecp->rmon_t_oversize);
297 printf("rmon_t_frag %x - %x\n", (int)&fecp->rmon_t_frag,
299 printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab,
301 printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col,
303 printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64,
305 printf("rmon_t_p65to127 %x - %x\n", (int)&fecp->rmon_t_p65to127,
306 fecp->rmon_t_p65to127);
307 printf("rmon_t_p128to255 %x - %x\n", (int)&fecp->rmon_t_p128to255,
308 fecp->rmon_t_p128to255);
309 printf("rmon_t_p256to511 %x - %x\n", (int)&fecp->rmon_t_p256to511,
310 fecp->rmon_t_p256to511);
311 printf("rmon_t_p512to1023 %x - %x\n", (int)&fecp->rmon_t_p512to1023,
312 fecp->rmon_t_p512to1023);
313 printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
314 fecp->rmon_t_p1024to2047);
315 printf("rmon_t_p_gte2048 %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
316 fecp->rmon_t_p_gte2048);
317 printf("rmon_t_octets %x - %x\n", (int)&fecp->rmon_t_octets,
318 fecp->rmon_t_octets);
321 printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop,
323 printf("ieee_t_frame_ok %x - %x\n", (int)&fecp->ieee_t_frame_ok,
324 fecp->ieee_t_frame_ok);
325 printf("ieee_t_1col %x - %x\n", (int)&fecp->ieee_t_1col,
327 printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol,
329 printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def,
331 printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol,
333 printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol,
335 printf("ieee_t_macerr %x - %x\n", (int)&fecp->ieee_t_macerr,
336 fecp->ieee_t_macerr);
337 printf("ieee_t_cserr %x - %x\n", (int)&fecp->ieee_t_cserr,
339 printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe,
341 printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc,
343 printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
344 fecp->ieee_t_octets_ok);
347 printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop,
349 printf("rmon_r_packets %x - %x\n", (int)&fecp->rmon_r_packets,
350 fecp->rmon_r_packets);
351 printf("rmon_r_bc_pkt %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
352 fecp->rmon_r_bc_pkt);
353 printf("rmon_r_mc_pkt %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
354 fecp->rmon_r_mc_pkt);
355 printf("rmon_r_crc_align %x - %x\n", (int)&fecp->rmon_r_crc_align,
356 fecp->rmon_r_crc_align);
357 printf("rmon_r_undersize %x - %x\n", (int)&fecp->rmon_r_undersize,
358 fecp->rmon_r_undersize);
359 printf("rmon_r_oversize %x - %x\n", (int)&fecp->rmon_r_oversize,
360 fecp->rmon_r_oversize);
361 printf("rmon_r_frag %x - %x\n", (int)&fecp->rmon_r_frag,
363 printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab,
365 printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64,
367 printf("rmon_r_p65to127 %x - %x\n", (int)&fecp->rmon_r_p65to127,
368 fecp->rmon_r_p65to127);
369 printf("rmon_r_p128to255 %x - %x\n", (int)&fecp->rmon_r_p128to255,
370 fecp->rmon_r_p128to255);
371 printf("rmon_r_p256to511 %x - %x\n", (int)&fecp->rmon_r_p256to511,
372 fecp->rmon_r_p256to511);
373 printf("rmon_r_p512to1023 %x - %x\n", (int)&fecp->rmon_r_p512to1023,
374 fecp->rmon_r_p512to1023);
375 printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
376 fecp->rmon_r_p1024to2047);
377 printf("rmon_r_p_gte2048 %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
378 fecp->rmon_r_p_gte2048);
379 printf("rmon_r_octets %x - %x\n", (int)&fecp->rmon_r_octets,
380 fecp->rmon_r_octets);
383 printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop,
385 printf("ieee_r_frame_ok %x - %x\n", (int)&fecp->ieee_r_frame_ok,
386 fecp->ieee_r_frame_ok);
387 printf("ieee_r_crc %x - %x\n", (int)&fecp->ieee_r_crc,
389 printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align,
391 printf("ieee_r_macerr %x - %x\n", (int)&fecp->ieee_r_macerr,
392 fecp->ieee_r_macerr);
393 printf("ieee_r_fdxfc %x - %x\n", (int)&fecp->ieee_r_fdxfc,
395 printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
396 fecp->ieee_r_octets_ok);
402 int fec_init(struct eth_device *dev, bd_t * bd)
404 struct fec_info_s *info = dev->priv;
405 volatile fec_t *fecp = (fec_t *) (info->iobase);
409 fecpin_setclear(dev, 1);
413 #if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
414 defined (CFG_DISCOVER_PHY)
418 setFecDuplexSpeed(fecp, bd, info->dup_spd);
420 #ifndef CFG_DISCOVER_PHY
421 setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
422 #endif /* ifndef CFG_DISCOVER_PHY */
423 #endif /* CONFIG_CMD_MII || CONFIG_MII */
425 /* We use strictly polling mode only */
428 /* Clear any pending interrupt */
429 fecp->eir = 0xffffffff;
431 /* Set station address */
432 if ((u32) fecp == CFG_FEC0_IOBASE) {
433 #ifdef CFG_FEC1_IOBASE
434 volatile fec_t *fecp1 = (fec_t *) (CFG_FEC1_IOBASE);
435 ea = &bd->bi_enet1addr[0];
437 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
438 fecp1->paur = (ea[4] << 24) | (ea[5] << 16);
440 ea = &bd->bi_enetaddr[0];
442 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
443 fecp->paur = (ea[4] << 24) | (ea[5] << 16);
445 #ifdef CFG_FEC0_IOBASE
446 volatile fec_t *fecp0 = (fec_t *) (CFG_FEC0_IOBASE);
447 ea = &bd->bi_enetaddr[0];
449 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
450 fecp0->paur = (ea[4] << 24) | (ea[5] << 16);
452 #ifdef CFG_FEC1_IOBASE
453 ea = &bd->bi_enet1addr[0];
455 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
456 fecp->paur = (ea[4] << 24) | (ea[5] << 16);
460 /* Clear unicast address hash table */
464 /* Clear multicast address hash table */
468 /* Set maximum receive buffer size. */
469 fecp->emrbr = PKT_MAXBLR_SIZE;
472 * Setup Buffers and Buffer Desriptors
478 * Setup Receiver Buffer Descriptors (13.14.24.18)
482 for (i = 0; i < PKTBUFSRX; i++) {
483 info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
484 info->rxbd[i].cbd_datlen = 0; /* Reset */
485 info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
487 info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
490 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
494 for (i = 0; i < TX_BUF_CNT; i++) {
495 info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
496 info->txbd[i].cbd_datlen = 0; /* Reset */
497 info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
499 info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
501 /* Set receive and transmit descriptor base */
502 fecp->erdsr = (unsigned int)(&info->rxbd[0]);
503 fecp->etdsr = (unsigned int)(&info->txbd[0]);
505 /* Now enable the transmit and receive processing */
506 fecp->ecr |= FEC_ECR_ETHER_EN;
508 /* And last, try to fill Rx Buffer Descriptors */
509 fecp->rdar = 0x01000000; /* Descriptor polling active */
514 void fec_reset(struct eth_device *dev)
516 struct fec_info_s *info = dev->priv;
517 volatile fec_t *fecp = (fec_t *) (info->iobase);
520 fecp->ecr = FEC_ECR_RESET;
521 for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
524 if (i == FEC_RESET_DELAY) {
525 printf("FEC_RESET_DELAY timeout\n");
529 void fec_halt(struct eth_device *dev)
531 struct fec_info_s *info = dev->priv;
535 fecpin_setclear(dev, 0);
537 info->rxIdx = info->txIdx = 0;
538 memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
539 memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
540 memset(info->txbuf, 0, DBUF_LENGTH);
543 int mcffec_initialize(bd_t * bis)
545 struct eth_device *dev;
548 for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
551 (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
556 memset(dev, 0, sizeof(*dev));
558 sprintf(dev->name, "FEC%d", fec_info[i].index);
560 dev->priv = &fec_info[i];
561 dev->init = fec_init;
562 dev->halt = fec_halt;
563 dev->send = fec_send;
564 dev->recv = fec_recv;
566 /* setup Receive and Transmit buffer descriptor */
568 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
569 (PKTBUFSRX * sizeof(cbd_t)));
571 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
572 (TX_BUF_CNT * sizeof(cbd_t)));
574 (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
576 printf("rxbd %x txbd %x\n",
577 (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
580 fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
584 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
585 miiphy_register(dev->name,
586 mcffec_miiphy_read, mcffec_miiphy_write);
591 bis->bi_ethspeed = 10;
596 #endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
597 #endif /* CONFIG_MCFFEC */