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,
31 #include <asm/immap.h>
40 /* Ethernet Transmit and Receive Buffers */
41 #define DBUF_LENGTH 1520
43 #define PKT_MAXBUF_SIZE 1518
44 #define PKT_MINBUF_SIZE 64
45 #define PKT_MAXBLR_SIZE 1520
46 #define LAST_PKTBUFSRX PKTBUFSRX - 1
47 #define BD_ENET_RX_W_E (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
48 #define BD_ENET_TX_RDY_LST (BD_ENET_TX_READY | BD_ENET_TX_LAST)
50 DECLARE_GLOBAL_DATA_PTR;
52 struct fec_info_s fec_info[] = {
53 #ifdef CFG_FEC0_IOBASE
56 CFG_FEC0_IOBASE, /* io base */
57 CFG_FEC0_PINMUX, /* gpio pin muxing */
58 CFG_FEC0_MIIBASE, /* mii base */
60 0, /* duplex and speed */
68 0, /* initialized flag */
71 #ifdef CFG_FEC1_IOBASE
74 CFG_FEC1_IOBASE, /* io base */
75 CFG_FEC1_PINMUX, /* gpio pin muxing */
76 CFG_FEC1_MIIBASE, /* mii base */
78 0, /* duplex and speed */
80 0, /* phy name init */
86 0, /* initialized flag */
91 int fec_send(struct eth_device *dev, volatile void *packet, int length);
92 int fec_recv(struct eth_device *dev);
93 int fec_init(struct eth_device *dev, bd_t * bd);
94 void fec_halt(struct eth_device *dev);
95 void fec_reset(struct eth_device *dev);
97 extern int fecpin_setclear(struct eth_device *dev, int setclear);
99 #ifdef CFG_DISCOVER_PHY
100 extern void __mii_init(void);
101 extern uint mii_send(uint mii_cmd);
102 extern int mii_discover_phy(struct eth_device *dev);
103 extern int mcffec_miiphy_read(char *devname, unsigned char addr,
104 unsigned char reg, unsigned short *value);
105 extern int mcffec_miiphy_write(char *devname, unsigned char addr,
106 unsigned char reg, unsigned short value);
109 void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd)
111 if ((dup_spd >> 16) == FULL) {
112 /* Set maximum frame length */
113 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
114 FEC_RCR_PROM | 0x100;
115 fecp->tcr = FEC_TCR_FDEN;
117 /* Half duplex mode */
118 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
119 FEC_RCR_MII_MODE | FEC_RCR_DRT;
120 fecp->tcr &= ~FEC_TCR_FDEN;
123 if ((dup_spd & 0xFFFF) == _100BASET) {
124 #ifdef CONFIG_MCF5445x
125 fecp->rcr &= ~0x200; /* disabled 10T base */
130 bd->bi_ethspeed = 100;
132 #ifdef CONFIG_MCF5445x
133 fecp->rcr |= 0x200; /* enabled 10T base */
138 bd->bi_ethspeed = 10;
142 int fec_send(struct eth_device *dev, volatile void *packet, int length)
144 struct fec_info_s *info = dev->priv;
145 volatile fec_t *fecp = (fec_t *) (info->iobase);
149 miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
155 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
156 (j < MCFFEC_TOUT_LOOP)) {
160 if (j >= MCFFEC_TOUT_LOOP) {
161 printf("TX not ready\n");
164 info->txbd[info->txIdx].cbd_bufaddr = (uint) packet;
165 info->txbd[info->txIdx].cbd_datlen = length;
166 info->txbd[info->txIdx].cbd_sc |= BD_ENET_TX_RDY_LST;
168 /* Activate transmit Buffer Descriptor polling */
169 fecp->tdar = 0x01000000; /* Descriptor polling active */
171 /* FEC fix for MCF5275, FEC unable to initial transmit data packet.
172 * A nop will ensure the descriptor polling active completed.
178 #ifdef CFG_UNIFY_CACHE
182 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
183 (j < MCFFEC_TOUT_LOOP)) {
187 if (j >= MCFFEC_TOUT_LOOP) {
188 printf("TX timeout\n");
192 printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n",
193 __FILE__, __LINE__, __FUNCTION__, j,
194 info->txbd[info->txIdx].cbd_sc,
195 (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2);
198 /* return only status bits */
199 rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
200 info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
205 int fec_recv(struct eth_device *dev)
207 struct fec_info_s *info = dev->priv;
208 volatile fec_t *fecp = (fec_t *) (info->iobase);
212 #ifdef CFG_UNIFY_CACHE
215 /* section 16.9.23.2 */
216 if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
218 break; /* nothing received - leave for() loop */
221 length = info->rxbd[info->rxIdx].cbd_datlen;
223 if (info->rxbd[info->rxIdx].cbd_sc & 0x003f) {
224 printf("%s[%d] err: %x\n",
225 __FUNCTION__, __LINE__,
226 info->rxbd[info->rxIdx].cbd_sc);
228 printf("%s[%d] err: %x\n",
229 __FUNCTION__, __LINE__,
230 info->rxbd[info->rxIdx].cbd_sc);
235 /* Pass the packet up to the protocol layers. */
236 NetReceive(NetRxPackets[info->rxIdx], length);
238 fecp->eir |= FEC_EIR_RXF;
241 /* Give the buffer back to the FEC. */
242 info->rxbd[info->rxIdx].cbd_datlen = 0;
244 /* wrap around buffer index when necessary */
245 if (info->rxIdx == LAST_PKTBUFSRX) {
246 info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E;
249 info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
253 /* Try to fill Buffer Descriptors */
254 fecp->rdar = 0x01000000; /* Descriptor polling active */
261 void dbgFecRegs(struct eth_device *dev)
263 struct fec_info_s *info = dev->priv;
264 volatile fec_t *fecp = (fec_t *) (info->iobase);
267 printf("ievent %x - %x\n", (int)&fecp->eir, fecp->eir);
268 printf("imask %x - %x\n", (int)&fecp->eimr, fecp->eimr);
269 printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar);
270 printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar);
271 printf("ecntrl %x - %x\n", (int)&fecp->ecr, fecp->ecr);
272 printf("mii_mframe %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
273 printf("mii_speed %x - %x\n", (int)&fecp->mscr, fecp->mscr);
274 printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
275 printf("r_cntrl %x - %x\n", (int)&fecp->rcr, fecp->rcr);
276 printf("x_cntrl %x - %x\n", (int)&fecp->tcr, fecp->tcr);
277 printf("padr_l %x - %x\n", (int)&fecp->palr, fecp->palr);
278 printf("padr_u %x - %x\n", (int)&fecp->paur, fecp->paur);
279 printf("op_pause %x - %x\n", (int)&fecp->opd, fecp->opd);
280 printf("iadr_u %x - %x\n", (int)&fecp->iaur, fecp->iaur);
281 printf("iadr_l %x - %x\n", (int)&fecp->ialr, fecp->ialr);
282 printf("gadr_u %x - %x\n", (int)&fecp->gaur, fecp->gaur);
283 printf("gadr_l %x - %x\n", (int)&fecp->galr, fecp->galr);
284 printf("x_wmrk %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
285 printf("r_bound %x - %x\n", (int)&fecp->frbr, fecp->frbr);
286 printf("r_fstart %x - %x\n", (int)&fecp->frsr, fecp->frsr);
287 printf("r_drng %x - %x\n", (int)&fecp->erdsr, fecp->erdsr);
288 printf("x_drng %x - %x\n", (int)&fecp->etdsr, fecp->etdsr);
289 printf("r_bufsz %x - %x\n", (int)&fecp->emrbr, fecp->emrbr);
292 printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop,
294 printf("rmon_t_packets %x - %x\n", (int)&fecp->rmon_t_packets,
295 fecp->rmon_t_packets);
296 printf("rmon_t_bc_pkt %x - %x\n", (int)&fecp->rmon_t_bc_pkt,
297 fecp->rmon_t_bc_pkt);
298 printf("rmon_t_mc_pkt %x - %x\n", (int)&fecp->rmon_t_mc_pkt,
299 fecp->rmon_t_mc_pkt);
300 printf("rmon_t_crc_align %x - %x\n", (int)&fecp->rmon_t_crc_align,
301 fecp->rmon_t_crc_align);
302 printf("rmon_t_undersize %x - %x\n", (int)&fecp->rmon_t_undersize,
303 fecp->rmon_t_undersize);
304 printf("rmon_t_oversize %x - %x\n", (int)&fecp->rmon_t_oversize,
305 fecp->rmon_t_oversize);
306 printf("rmon_t_frag %x - %x\n", (int)&fecp->rmon_t_frag,
308 printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab,
310 printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col,
312 printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64,
314 printf("rmon_t_p65to127 %x - %x\n", (int)&fecp->rmon_t_p65to127,
315 fecp->rmon_t_p65to127);
316 printf("rmon_t_p128to255 %x - %x\n", (int)&fecp->rmon_t_p128to255,
317 fecp->rmon_t_p128to255);
318 printf("rmon_t_p256to511 %x - %x\n", (int)&fecp->rmon_t_p256to511,
319 fecp->rmon_t_p256to511);
320 printf("rmon_t_p512to1023 %x - %x\n", (int)&fecp->rmon_t_p512to1023,
321 fecp->rmon_t_p512to1023);
322 printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
323 fecp->rmon_t_p1024to2047);
324 printf("rmon_t_p_gte2048 %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
325 fecp->rmon_t_p_gte2048);
326 printf("rmon_t_octets %x - %x\n", (int)&fecp->rmon_t_octets,
327 fecp->rmon_t_octets);
330 printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop,
332 printf("ieee_t_frame_ok %x - %x\n", (int)&fecp->ieee_t_frame_ok,
333 fecp->ieee_t_frame_ok);
334 printf("ieee_t_1col %x - %x\n", (int)&fecp->ieee_t_1col,
336 printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol,
338 printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def,
340 printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol,
342 printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol,
344 printf("ieee_t_macerr %x - %x\n", (int)&fecp->ieee_t_macerr,
345 fecp->ieee_t_macerr);
346 printf("ieee_t_cserr %x - %x\n", (int)&fecp->ieee_t_cserr,
348 printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe,
350 printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc,
352 printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
353 fecp->ieee_t_octets_ok);
356 printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop,
358 printf("rmon_r_packets %x - %x\n", (int)&fecp->rmon_r_packets,
359 fecp->rmon_r_packets);
360 printf("rmon_r_bc_pkt %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
361 fecp->rmon_r_bc_pkt);
362 printf("rmon_r_mc_pkt %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
363 fecp->rmon_r_mc_pkt);
364 printf("rmon_r_crc_align %x - %x\n", (int)&fecp->rmon_r_crc_align,
365 fecp->rmon_r_crc_align);
366 printf("rmon_r_undersize %x - %x\n", (int)&fecp->rmon_r_undersize,
367 fecp->rmon_r_undersize);
368 printf("rmon_r_oversize %x - %x\n", (int)&fecp->rmon_r_oversize,
369 fecp->rmon_r_oversize);
370 printf("rmon_r_frag %x - %x\n", (int)&fecp->rmon_r_frag,
372 printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab,
374 printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64,
376 printf("rmon_r_p65to127 %x - %x\n", (int)&fecp->rmon_r_p65to127,
377 fecp->rmon_r_p65to127);
378 printf("rmon_r_p128to255 %x - %x\n", (int)&fecp->rmon_r_p128to255,
379 fecp->rmon_r_p128to255);
380 printf("rmon_r_p256to511 %x - %x\n", (int)&fecp->rmon_r_p256to511,
381 fecp->rmon_r_p256to511);
382 printf("rmon_r_p512to1023 %x - %x\n", (int)&fecp->rmon_r_p512to1023,
383 fecp->rmon_r_p512to1023);
384 printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
385 fecp->rmon_r_p1024to2047);
386 printf("rmon_r_p_gte2048 %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
387 fecp->rmon_r_p_gte2048);
388 printf("rmon_r_octets %x - %x\n", (int)&fecp->rmon_r_octets,
389 fecp->rmon_r_octets);
392 printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop,
394 printf("ieee_r_frame_ok %x - %x\n", (int)&fecp->ieee_r_frame_ok,
395 fecp->ieee_r_frame_ok);
396 printf("ieee_r_crc %x - %x\n", (int)&fecp->ieee_r_crc,
398 printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align,
400 printf("ieee_r_macerr %x - %x\n", (int)&fecp->ieee_r_macerr,
401 fecp->ieee_r_macerr);
402 printf("ieee_r_fdxfc %x - %x\n", (int)&fecp->ieee_r_fdxfc,
404 printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
405 fecp->ieee_r_octets_ok);
411 int fec_init(struct eth_device *dev, bd_t * bd)
413 struct fec_info_s *info = dev->priv;
414 volatile fec_t *fecp = (fec_t *) (info->iobase);
418 fecpin_setclear(dev, 1);
422 #if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
423 defined (CFG_DISCOVER_PHY)
427 setFecDuplexSpeed(fecp, bd, info->dup_spd);
429 #ifndef CFG_DISCOVER_PHY
430 setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
431 #endif /* ifndef CFG_DISCOVER_PHY */
432 #endif /* CONFIG_CMD_MII || CONFIG_MII */
434 /* We use strictly polling mode only */
437 /* Clear any pending interrupt */
438 fecp->eir = 0xffffffff;
440 /* Set station address */
441 if ((u32) fecp == CFG_FEC0_IOBASE) {
442 #ifdef CFG_FEC1_IOBASE
443 volatile fec_t *fecp1 = (fec_t *) (CFG_FEC1_IOBASE);
444 ea = &bd->bi_enet1addr[0];
446 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
447 fecp1->paur = (ea[4] << 24) | (ea[5] << 16);
449 ea = &bd->bi_enetaddr[0];
451 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
452 fecp->paur = (ea[4] << 24) | (ea[5] << 16);
454 #ifdef CFG_FEC0_IOBASE
455 volatile fec_t *fecp0 = (fec_t *) (CFG_FEC0_IOBASE);
456 ea = &bd->bi_enetaddr[0];
458 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
459 fecp0->paur = (ea[4] << 24) | (ea[5] << 16);
461 #ifdef CFG_FEC1_IOBASE
462 ea = &bd->bi_enet1addr[0];
464 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
465 fecp->paur = (ea[4] << 24) | (ea[5] << 16);
469 /* Clear unicast address hash table */
473 /* Clear multicast address hash table */
477 /* Set maximum receive buffer size. */
478 fecp->emrbr = PKT_MAXBLR_SIZE;
481 * Setup Buffers and Buffer Desriptors
487 * Setup Receiver Buffer Descriptors (13.14.24.18)
491 for (i = 0; i < PKTBUFSRX; i++) {
492 info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
493 info->rxbd[i].cbd_datlen = 0; /* Reset */
494 info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
496 info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
499 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
503 for (i = 0; i < TX_BUF_CNT; i++) {
504 info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
505 info->txbd[i].cbd_datlen = 0; /* Reset */
506 info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
508 info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
510 /* Set receive and transmit descriptor base */
511 fecp->erdsr = (unsigned int)(&info->rxbd[0]);
512 fecp->etdsr = (unsigned int)(&info->txbd[0]);
514 /* Now enable the transmit and receive processing */
515 fecp->ecr |= FEC_ECR_ETHER_EN;
517 /* And last, try to fill Rx Buffer Descriptors */
518 fecp->rdar = 0x01000000; /* Descriptor polling active */
523 void fec_reset(struct eth_device *dev)
525 struct fec_info_s *info = dev->priv;
526 volatile fec_t *fecp = (fec_t *) (info->iobase);
529 fecp->ecr = FEC_ECR_RESET;
530 for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
533 if (i == FEC_RESET_DELAY) {
534 printf("FEC_RESET_DELAY timeout\n");
538 void fec_halt(struct eth_device *dev)
540 struct fec_info_s *info = dev->priv;
544 fecpin_setclear(dev, 0);
546 info->rxIdx = info->txIdx = 0;
547 memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
548 memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
549 memset(info->txbuf, 0, DBUF_LENGTH);
552 int mcffec_initialize(bd_t * bis)
554 struct eth_device *dev;
557 for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
560 (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
565 memset(dev, 0, sizeof(*dev));
567 sprintf(dev->name, "FEC%d", fec_info[i].index);
569 dev->priv = &fec_info[i];
570 dev->init = fec_init;
571 dev->halt = fec_halt;
572 dev->send = fec_send;
573 dev->recv = fec_recv;
575 /* setup Receive and Transmit buffer descriptor */
577 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
578 (PKTBUFSRX * sizeof(cbd_t)));
580 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
581 (TX_BUF_CNT * sizeof(cbd_t)));
583 (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
585 printf("rxbd %x txbd %x\n",
586 (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
589 fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
593 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
594 miiphy_register(dev->name,
595 mcffec_miiphy_read, mcffec_miiphy_write);
600 bis->bi_ethspeed = 10;