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TsiChung Liew8e585f02007-06-18 13:50:13 -05001/*
2 * (C) Copyright 2000-2004
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
TsiChungLiewf2208fb2007-07-05 23:13:58 -05005 * (C) Copyright 2007 Freescale Semiconductor, Inc.
TsiChung Liew8e585f02007-06-18 13:50:13 -05006 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7 *
8 * See file CREDITS for list of people who contributed to this
9 * project.
10 *
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.
15 *
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.
20 *
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,
24 * MA 02111-1307 USA
25 */
26
27#include <common.h>
28#include <malloc.h>
29
30#include <asm/fec.h>
TsiChungLiewf2208fb2007-07-05 23:13:58 -050031#include <asm/immap.h>
TsiChung Liew8e585f02007-06-18 13:50:13 -050032
33#include <command.h>
34#include <config.h>
35#include <net.h>
36#include <miiphy.h>
37
38#ifdef CONFIG_MCFFEC
39#undef ET_DEBUG
40#undef MII_DEBUG
41
42/* Ethernet Transmit and Receive Buffers */
TsiChungLiewf2208fb2007-07-05 23:13:58 -050043#define DBUF_LENGTH 1520
44#define TX_BUF_CNT 2
TsiChung Liew8e585f02007-06-18 13:50:13 -050045#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)
51
52DECLARE_GLOBAL_DATA_PTR;
53
54#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI)
55
56struct fec_info_s fec_info[] = {
57#ifdef CFG_FEC0_IOBASE
58 {
59 0, /* index */
60 CFG_FEC0_IOBASE, /* io base */
61 CFG_FEC0_PINMUX, /* gpio pin muxing */
62 CFG_FEC0_MIIBASE, /* mii base */
63 -1, /* phy_addr */
64 0, /* duplex and speed */
65 0, /* phy name */
66 0, /* phyname init */
67 0, /* RX BD */
68 0, /* TX BD */
69 0, /* rx Index */
70 0, /* tx Index */
71 0, /* tx buffer */
72 0, /* initialized flag */
73 },
74#endif
75#ifdef CFG_FEC1_IOBASE
76 {
77 1, /* index */
78 CFG_FEC1_IOBASE, /* io base */
79 CFG_FEC1_PINMUX, /* gpio pin muxing */
80 CFG_FEC1_MIIBASE, /* mii base */
81 -1, /* phy_addr */
82 0, /* duplex and speed */
83 0, /* phy name */
84 0, /* phy name init */
85 0, /* RX BD */
86 0, /* TX BD */
87 0, /* rx Index */
88 0, /* tx Index */
89 0, /* tx buffer */
90 0, /* initialized flag */
91 }
92#endif
93};
94
TsiChung Liew8e585f02007-06-18 13:50:13 -050095int fec_send(struct eth_device *dev, volatile void *packet, int length);
96int fec_recv(struct eth_device *dev);
97int fec_init(struct eth_device *dev, bd_t * bd);
98void fec_halt(struct eth_device *dev);
99void fec_reset(struct eth_device *dev);
100
101extern int fecpin_setclear(struct eth_device *dev, int setclear);
102
103#ifdef CFG_DISCOVER_PHY
TsiChungLiew9e737d82007-08-05 03:30:44 -0500104extern void __mii_init(void);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500105extern uint mii_send(uint mii_cmd);
106extern int mii_discover_phy(struct eth_device *dev);
107extern int mcffec_miiphy_read(char *devname, unsigned char addr,
108 unsigned char reg, unsigned short *value);
109extern int mcffec_miiphy_write(char *devname, unsigned char addr,
110 unsigned char reg, unsigned short value);
111#endif
112
113void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd)
114{
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;
120 } else {
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;
125 }
126
127 if ((dup_spd & 0xFFFF) == _100BASET) {
128#ifdef MII_DEBUG
129 printf("100Mbps\n");
130#endif
131 bd->bi_ethspeed = 100;
132 } else {
133#ifdef MII_DEBUG
134 printf("10Mbps\n");
135#endif
136 bd->bi_ethspeed = 10;
137 }
138}
139
140int fec_send(struct eth_device *dev, volatile void *packet, int length)
141{
142 struct fec_info_s *info = dev->priv;
143 volatile fec_t *fecp = (fec_t *) (info->iobase);
144 int j, rc;
145 u16 phyStatus;
146
147 miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
148
149 /* section 16.9.23.3
150 * Wait for ready
151 */
152 j = 0;
153 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
154 (j < MCFFEC_TOUT_LOOP)) {
155 udelay(1);
156 j++;
157 }
158 if (j >= MCFFEC_TOUT_LOOP) {
159 printf("TX not ready\n");
160 }
TsiChung0dca8742007-07-10 15:45:43 -0500161
TsiChung Liew8e585f02007-06-18 13:50:13 -0500162 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;
165
166 /* Activate transmit Buffer Descriptor polling */
167 fecp->tdar = 0x01000000; /* Descriptor polling active */
168
TsiChung0dca8742007-07-10 15:45:43 -0500169#ifdef CFG_UNIFY_CACHE
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500170 icache_invalid();
171#endif
TsiChung0dca8742007-07-10 15:45:43 -0500172 j = 0;
TsiChung Liew8e585f02007-06-18 13:50:13 -0500173 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
174 (j < MCFFEC_TOUT_LOOP)) {
175 udelay(1);
176 j++;
177 }
178 if (j >= MCFFEC_TOUT_LOOP) {
179 printf("TX timeout\n");
180 }
TsiChung0dca8742007-07-10 15:45:43 -0500181
TsiChung Liew8e585f02007-06-18 13:50:13 -0500182#ifdef ET_DEBUG
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);
187#endif
188
TsiChung0dca8742007-07-10 15:45:43 -0500189 /* return only status bits */
TsiChung Liew8e585f02007-06-18 13:50:13 -0500190 rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
191 info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
192
193 return rc;
194}
195
196int fec_recv(struct eth_device *dev)
197{
198 struct fec_info_s *info = dev->priv;
199 volatile fec_t *fecp = (fec_t *) (info->iobase);
200 int length;
201
202 for (;;) {
TsiChung0dca8742007-07-10 15:45:43 -0500203#ifdef CFG_UNIFY_CACHE
204 icache_invalid();
205#endif
TsiChung Liew8e585f02007-06-18 13:50:13 -0500206 /* section 16.9.23.2 */
207 if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
208 length = -1;
209 break; /* nothing received - leave for() loop */
210 }
211
212 length = info->rxbd[info->rxIdx].cbd_datlen;
213
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);
218#ifdef ET_DEBUG
219 printf("%s[%d] err: %x\n",
220 __FUNCTION__, __LINE__,
221 info->rxbd[info->rxIdx].cbd_sc);
222#endif
223 } else {
224
225 length -= 4;
226 /* Pass the packet up to the protocol layers. */
227 NetReceive(NetRxPackets[info->rxIdx], length);
228
229 fecp->eir |= FEC_EIR_RXF;
230 }
231
232 /* Give the buffer back to the FEC. */
233 info->rxbd[info->rxIdx].cbd_datlen = 0;
234
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;
238 info->rxIdx = 0;
239 } else {
240 info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
241 info->rxIdx++;
242 }
243
244 /* Try to fill Buffer Descriptors */
245 fecp->rdar = 0x01000000; /* Descriptor polling active */
246 }
247
248 return length;
249}
250
TsiChung Liew8e585f02007-06-18 13:50:13 -0500251#ifdef ET_DEBUG
252void dbgFecRegs(struct eth_device *dev)
253{
254 struct fec_info_s *info = dev->priv;
255 volatile fec_t *fecp = (fec_t *) (info->iobase);
256
257 printf("=====\n");
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);
281
282 printf("\n");
283 printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop,
284 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,
298 fecp->rmon_t_frag);
299 printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab,
300 fecp->rmon_t_jab);
301 printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col,
302 fecp->rmon_t_col);
303 printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64,
304 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);
319
320 printf("\n");
321 printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop,
322 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,
326 fecp->ieee_t_1col);
327 printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol,
328 fecp->ieee_t_mcol);
329 printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def,
330 fecp->ieee_t_def);
331 printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol,
332 fecp->ieee_t_lcol);
333 printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol,
334 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,
338 fecp->ieee_t_cserr);
339 printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe,
340 fecp->ieee_t_sqe);
341 printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc,
342 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);
345
346 printf("\n");
347 printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop,
348 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,
362 fecp->rmon_r_frag);
363 printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab,
364 fecp->rmon_r_jab);
365 printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64,
366 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);
381
382 printf("\n");
383 printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop,
384 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,
388 fecp->ieee_r_crc);
389 printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align,
390 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,
394 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);
397
398 printf("\n\n\n");
399}
400#endif
401
402int fec_init(struct eth_device *dev, bd_t * bd)
403{
404 struct fec_info_s *info = dev->priv;
405 volatile fec_t *fecp = (fec_t *) (info->iobase);
406 int i;
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500407 u8 *ea = NULL;
TsiChung Liew8e585f02007-06-18 13:50:13 -0500408
409 fecpin_setclear(dev, 1);
410
411 fec_reset(dev);
412
413#if (CONFIG_COMMANDS & CFG_CMD_MII) || defined (CONFIG_MII) || \
414 defined (CFG_DISCOVER_PHY)
415
416 mii_init();
417
418 setFecDuplexSpeed(fecp, bd, info->dup_spd);
419#else
420#ifndef CFG_DISCOVER_PHY
421 setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
422#endif /* ifndef CFG_DISCOVER_PHY */
423#endif /* CFG_CMD_MII || CONFIG_MII */
424
425 /* We use strictly polling mode only */
426 fecp->eimr = 0;
427
428 /* Clear any pending interrupt */
429 fecp->eir = 0xffffffff;
430
431 /* Set station address */
432 if ((u32) fecp == CFG_FEC0_IOBASE) {
433 ea = &bd->bi_enetaddr[0];
434 } else {
435#ifdef CFG_FEC1_IOBASE
436 ea = &bd->bi_enet1addr[0];
437#endif
438 }
439
440 fecp->palr = (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
441 fecp->paur = (ea[4] << 24) | (ea[5] << 16);
442#ifdef ET_DEBUG
443 printf("Eth Addrs: %02x:%02x:%02x:%02x:%02x:%02x\n",
444 ea[0], ea[1], ea[2], ea[3], ea[4], ea[5]);
445#endif
446
447 /* Clear unicast address hash table */
448 fecp->iaur = 0;
449 fecp->ialr = 0;
450
451 /* Clear multicast address hash table */
452 fecp->gaur = 0;
453 fecp->galr = 0;
454
455 /* Set maximum receive buffer size. */
456 fecp->emrbr = PKT_MAXBLR_SIZE;
457
458 /*
459 * Setup Buffers and Buffer Desriptors
460 */
461 info->rxIdx = 0;
462 info->txIdx = 0;
463
464 /*
465 * Setup Receiver Buffer Descriptors (13.14.24.18)
466 * Settings:
467 * Empty, Wrap
468 */
469 for (i = 0; i < PKTBUFSRX; i++) {
470 info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
471 info->rxbd[i].cbd_datlen = 0; /* Reset */
472 info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
473 }
474 info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
475
476 /*
477 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
478 * Settings:
479 * Last, Tx CRC
480 */
481 for (i = 0; i < TX_BUF_CNT; i++) {
482 info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
483 info->txbd[i].cbd_datlen = 0; /* Reset */
484 info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
485 }
486 info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
487
488 /* Set receive and transmit descriptor base */
489 fecp->erdsr = (unsigned int)(&info->rxbd[0]);
490 fecp->etdsr = (unsigned int)(&info->txbd[0]);
491
492 /* Now enable the transmit and receive processing */
493 fecp->ecr |= FEC_ECR_ETHER_EN;
494
495 /* And last, try to fill Rx Buffer Descriptors */
496 fecp->rdar = 0x01000000; /* Descriptor polling active */
497
498 return 1;
499}
500
501void fec_reset(struct eth_device *dev)
502{
503 struct fec_info_s *info = dev->priv;
504 volatile fec_t *fecp = (fec_t *) (info->iobase);
505 int i;
506
507 fecp->ecr = FEC_ECR_RESET;
508 for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
509 udelay(1);
510 }
511 if (i == FEC_RESET_DELAY) {
512 printf("FEC_RESET_DELAY timeout\n");
513 }
514}
515
516void fec_halt(struct eth_device *dev)
517{
518 struct fec_info_s *info = dev->priv;
519
520 fec_reset(dev);
521
522 fecpin_setclear(dev, 0);
523
524 info->rxIdx = info->txIdx = 0;
525 memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
526 memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
527 memset(info->txbuf, 0, DBUF_LENGTH);
528}
529
530int mcffec_initialize(bd_t * bis)
531{
532 struct eth_device *dev;
533 int i;
534
535 for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
536
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500537 dev =
538 (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
539 sizeof *dev);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500540 if (dev == NULL)
541 hang();
542
543 memset(dev, 0, sizeof(*dev));
544
545 sprintf(dev->name, "FEC%d", fec_info[i].index);
546
547 dev->priv = &fec_info[i];
548 dev->init = fec_init;
549 dev->halt = fec_halt;
550 dev->send = fec_send;
551 dev->recv = fec_recv;
552
553 /* setup Receive and Transmit buffer descriptor */
554 fec_info[i].rxbd =
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500555 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
556 (PKTBUFSRX * sizeof(cbd_t)));
TsiChung Liew8e585f02007-06-18 13:50:13 -0500557 fec_info[i].txbd =
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500558 (cbd_t *) memalign(CFG_CACHELINE_SIZE,
559 (TX_BUF_CNT * sizeof(cbd_t)));
560 fec_info[i].txbuf =
561 (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500562#ifdef ET_DEBUG
563 printf("rxbd %x txbd %x\n",
564 (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
565#endif
566
TsiChungLiewf2208fb2007-07-05 23:13:58 -0500567 fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
TsiChung Liew8e585f02007-06-18 13:50:13 -0500568
569 eth_register(dev);
570
571#if defined(CONFIG_MII) || (CONFIG_COMMANDS & CFG_CMD_MII)
572 miiphy_register(dev->name,
573 mcffec_miiphy_read, mcffec_miiphy_write);
574#endif
575 }
576
577 /* default speed */
578 bis->bi_ethspeed = 10;
579
580 return 1;
581}
582
583#endif /* CFG_CMD_NET, FEC_ENET & NET_MULTI */
584#endif /* CONFIG_MCFFEC */