1 /* 2 * (C) Copyright 2000-2004 3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4 * 5 * (C) Copyright 2007 Freescale Semiconductor, Inc. 6 * TsiChung Liew (Tsi-Chung.Liew@freescale.com) 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 #include <common.h> 12 #include <environment.h> 13 #include <malloc.h> 14 15 #include <command.h> 16 #include <net.h> 17 #include <netdev.h> 18 #include <miiphy.h> 19 20 #include <asm/fec.h> 21 #include <asm/immap.h> 22 23 #undef ET_DEBUG 24 #undef MII_DEBUG 25 26 /* Ethernet Transmit and Receive Buffers */ 27 #define DBUF_LENGTH 1520 28 #define TX_BUF_CNT 2 29 #define PKT_MAXBUF_SIZE 1518 30 #define PKT_MINBUF_SIZE 64 31 #define PKT_MAXBLR_SIZE 1520 32 #define LAST_PKTBUFSRX PKTBUFSRX - 1 33 #define BD_ENET_RX_W_E (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY) 34 #define BD_ENET_TX_RDY_LST (BD_ENET_TX_READY | BD_ENET_TX_LAST) 35 36 struct fec_info_s fec_info[] = { 37 #ifdef CONFIG_SYS_FEC0_IOBASE 38 { 39 0, /* index */ 40 CONFIG_SYS_FEC0_IOBASE, /* io base */ 41 CONFIG_SYS_FEC0_PINMUX, /* gpio pin muxing */ 42 CONFIG_SYS_FEC0_MIIBASE, /* mii base */ 43 -1, /* phy_addr */ 44 0, /* duplex and speed */ 45 0, /* phy name */ 46 0, /* phyname init */ 47 0, /* RX BD */ 48 0, /* TX BD */ 49 0, /* rx Index */ 50 0, /* tx Index */ 51 0, /* tx buffer */ 52 0, /* initialized flag */ 53 (struct fec_info_s *)-1, 54 }, 55 #endif 56 #ifdef CONFIG_SYS_FEC1_IOBASE 57 { 58 1, /* index */ 59 CONFIG_SYS_FEC1_IOBASE, /* io base */ 60 CONFIG_SYS_FEC1_PINMUX, /* gpio pin muxing */ 61 CONFIG_SYS_FEC1_MIIBASE, /* mii base */ 62 -1, /* phy_addr */ 63 0, /* duplex and speed */ 64 0, /* phy name */ 65 0, /* phy name init */ 66 #ifdef CONFIG_SYS_FEC_BUF_USE_SRAM 67 (cbd_t *)DBUF_LENGTH, /* RX BD */ 68 #else 69 0, /* RX BD */ 70 #endif 71 0, /* TX BD */ 72 0, /* rx Index */ 73 0, /* tx Index */ 74 0, /* tx buffer */ 75 0, /* initialized flag */ 76 (struct fec_info_s *)-1, 77 } 78 #endif 79 }; 80 81 int fec_recv(struct eth_device *dev); 82 int fec_init(struct eth_device *dev, bd_t * bd); 83 void fec_halt(struct eth_device *dev); 84 void fec_reset(struct eth_device *dev); 85 86 void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd) 87 { 88 if ((dup_spd >> 16) == FULL) { 89 /* Set maximum frame length */ 90 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE | 91 FEC_RCR_PROM | 0x100; 92 fecp->tcr = FEC_TCR_FDEN; 93 } else { 94 /* Half duplex mode */ 95 fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | 96 FEC_RCR_MII_MODE | FEC_RCR_DRT; 97 fecp->tcr &= ~FEC_TCR_FDEN; 98 } 99 100 if ((dup_spd & 0xFFFF) == _100BASET) { 101 #ifdef CONFIG_MCF5445x 102 fecp->rcr &= ~0x200; /* disabled 10T base */ 103 #endif 104 #ifdef MII_DEBUG 105 printf("100Mbps\n"); 106 #endif 107 bd->bi_ethspeed = 100; 108 } else { 109 #ifdef CONFIG_MCF5445x 110 fecp->rcr |= 0x200; /* enabled 10T base */ 111 #endif 112 #ifdef MII_DEBUG 113 printf("10Mbps\n"); 114 #endif 115 bd->bi_ethspeed = 10; 116 } 117 } 118 119 static int fec_send(struct eth_device *dev, void *packet, int length) 120 { 121 struct fec_info_s *info = dev->priv; 122 volatile fec_t *fecp = (fec_t *) (info->iobase); 123 int j, rc; 124 u16 phyStatus; 125 126 miiphy_read(dev->name, info->phy_addr, MII_BMSR, &phyStatus); 127 128 /* section 16.9.23.3 129 * Wait for ready 130 */ 131 j = 0; 132 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) && 133 (j < MCFFEC_TOUT_LOOP)) { 134 udelay(1); 135 j++; 136 } 137 if (j >= MCFFEC_TOUT_LOOP) { 138 printf("TX not ready\n"); 139 } 140 141 info->txbd[info->txIdx].cbd_bufaddr = (uint) packet; 142 info->txbd[info->txIdx].cbd_datlen = length; 143 info->txbd[info->txIdx].cbd_sc |= BD_ENET_TX_RDY_LST; 144 145 /* Activate transmit Buffer Descriptor polling */ 146 fecp->tdar = 0x01000000; /* Descriptor polling active */ 147 148 #ifndef CONFIG_SYS_FEC_BUF_USE_SRAM 149 /* 150 * FEC unable to initial transmit data packet. 151 * A nop will ensure the descriptor polling active completed. 152 * CF Internal RAM has shorter cycle access than DRAM. If use 153 * DRAM as Buffer descriptor and data, a nop is a must. 154 * Affect only V2 and V3. 155 */ 156 __asm__ ("nop"); 157 158 #endif 159 160 #ifdef CONFIG_SYS_UNIFY_CACHE 161 icache_invalid(); 162 #endif 163 164 j = 0; 165 while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) && 166 (j < MCFFEC_TOUT_LOOP)) { 167 udelay(1); 168 j++; 169 } 170 if (j >= MCFFEC_TOUT_LOOP) { 171 printf("TX timeout\n"); 172 } 173 174 #ifdef ET_DEBUG 175 printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n", 176 __FILE__, __LINE__, __FUNCTION__, j, 177 info->txbd[info->txIdx].cbd_sc, 178 (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2); 179 #endif 180 181 /* return only status bits */ 182 rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS); 183 info->txIdx = (info->txIdx + 1) % TX_BUF_CNT; 184 185 return rc; 186 } 187 188 int fec_recv(struct eth_device *dev) 189 { 190 struct fec_info_s *info = dev->priv; 191 volatile fec_t *fecp = (fec_t *) (info->iobase); 192 int length; 193 194 for (;;) { 195 #ifndef CONFIG_SYS_FEC_BUF_USE_SRAM 196 #endif 197 #ifdef CONFIG_SYS_UNIFY_CACHE 198 icache_invalid(); 199 #endif 200 /* section 16.9.23.2 */ 201 if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) { 202 length = -1; 203 break; /* nothing received - leave for() loop */ 204 } 205 206 length = info->rxbd[info->rxIdx].cbd_datlen; 207 208 if (info->rxbd[info->rxIdx].cbd_sc & 0x003f) { 209 printf("%s[%d] err: %x\n", 210 __FUNCTION__, __LINE__, 211 info->rxbd[info->rxIdx].cbd_sc); 212 #ifdef ET_DEBUG 213 printf("%s[%d] err: %x\n", 214 __FUNCTION__, __LINE__, 215 info->rxbd[info->rxIdx].cbd_sc); 216 #endif 217 } else { 218 219 length -= 4; 220 /* Pass the packet up to the protocol layers. */ 221 net_process_received_packet(net_rx_packets[info->rxIdx], 222 length); 223 224 fecp->eir |= FEC_EIR_RXF; 225 } 226 227 /* Give the buffer back to the FEC. */ 228 info->rxbd[info->rxIdx].cbd_datlen = 0; 229 230 /* wrap around buffer index when necessary */ 231 if (info->rxIdx == LAST_PKTBUFSRX) { 232 info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E; 233 info->rxIdx = 0; 234 } else { 235 info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY; 236 info->rxIdx++; 237 } 238 239 /* Try to fill Buffer Descriptors */ 240 fecp->rdar = 0x01000000; /* Descriptor polling active */ 241 } 242 243 return length; 244 } 245 246 #ifdef ET_DEBUG 247 void dbgFecRegs(struct eth_device *dev) 248 { 249 struct fec_info_s *info = dev->priv; 250 volatile fec_t *fecp = (fec_t *) (info->iobase); 251 252 printf("=====\n"); 253 printf("ievent %x - %x\n", (int)&fecp->eir, fecp->eir); 254 printf("imask %x - %x\n", (int)&fecp->eimr, fecp->eimr); 255 printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar); 256 printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar); 257 printf("ecntrl %x - %x\n", (int)&fecp->ecr, fecp->ecr); 258 printf("mii_mframe %x - %x\n", (int)&fecp->mmfr, fecp->mmfr); 259 printf("mii_speed %x - %x\n", (int)&fecp->mscr, fecp->mscr); 260 printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc); 261 printf("r_cntrl %x - %x\n", (int)&fecp->rcr, fecp->rcr); 262 printf("x_cntrl %x - %x\n", (int)&fecp->tcr, fecp->tcr); 263 printf("padr_l %x - %x\n", (int)&fecp->palr, fecp->palr); 264 printf("padr_u %x - %x\n", (int)&fecp->paur, fecp->paur); 265 printf("op_pause %x - %x\n", (int)&fecp->opd, fecp->opd); 266 printf("iadr_u %x - %x\n", (int)&fecp->iaur, fecp->iaur); 267 printf("iadr_l %x - %x\n", (int)&fecp->ialr, fecp->ialr); 268 printf("gadr_u %x - %x\n", (int)&fecp->gaur, fecp->gaur); 269 printf("gadr_l %x - %x\n", (int)&fecp->galr, fecp->galr); 270 printf("x_wmrk %x - %x\n", (int)&fecp->tfwr, fecp->tfwr); 271 printf("r_bound %x - %x\n", (int)&fecp->frbr, fecp->frbr); 272 printf("r_fstart %x - %x\n", (int)&fecp->frsr, fecp->frsr); 273 printf("r_drng %x - %x\n", (int)&fecp->erdsr, fecp->erdsr); 274 printf("x_drng %x - %x\n", (int)&fecp->etdsr, fecp->etdsr); 275 printf("r_bufsz %x - %x\n", (int)&fecp->emrbr, fecp->emrbr); 276 277 printf("\n"); 278 printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop, 279 fecp->rmon_t_drop); 280 printf("rmon_t_packets %x - %x\n", (int)&fecp->rmon_t_packets, 281 fecp->rmon_t_packets); 282 printf("rmon_t_bc_pkt %x - %x\n", (int)&fecp->rmon_t_bc_pkt, 283 fecp->rmon_t_bc_pkt); 284 printf("rmon_t_mc_pkt %x - %x\n", (int)&fecp->rmon_t_mc_pkt, 285 fecp->rmon_t_mc_pkt); 286 printf("rmon_t_crc_align %x - %x\n", (int)&fecp->rmon_t_crc_align, 287 fecp->rmon_t_crc_align); 288 printf("rmon_t_undersize %x - %x\n", (int)&fecp->rmon_t_undersize, 289 fecp->rmon_t_undersize); 290 printf("rmon_t_oversize %x - %x\n", (int)&fecp->rmon_t_oversize, 291 fecp->rmon_t_oversize); 292 printf("rmon_t_frag %x - %x\n", (int)&fecp->rmon_t_frag, 293 fecp->rmon_t_frag); 294 printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab, 295 fecp->rmon_t_jab); 296 printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col, 297 fecp->rmon_t_col); 298 printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64, 299 fecp->rmon_t_p64); 300 printf("rmon_t_p65to127 %x - %x\n", (int)&fecp->rmon_t_p65to127, 301 fecp->rmon_t_p65to127); 302 printf("rmon_t_p128to255 %x - %x\n", (int)&fecp->rmon_t_p128to255, 303 fecp->rmon_t_p128to255); 304 printf("rmon_t_p256to511 %x - %x\n", (int)&fecp->rmon_t_p256to511, 305 fecp->rmon_t_p256to511); 306 printf("rmon_t_p512to1023 %x - %x\n", (int)&fecp->rmon_t_p512to1023, 307 fecp->rmon_t_p512to1023); 308 printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047, 309 fecp->rmon_t_p1024to2047); 310 printf("rmon_t_p_gte2048 %x - %x\n", (int)&fecp->rmon_t_p_gte2048, 311 fecp->rmon_t_p_gte2048); 312 printf("rmon_t_octets %x - %x\n", (int)&fecp->rmon_t_octets, 313 fecp->rmon_t_octets); 314 315 printf("\n"); 316 printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop, 317 fecp->ieee_t_drop); 318 printf("ieee_t_frame_ok %x - %x\n", (int)&fecp->ieee_t_frame_ok, 319 fecp->ieee_t_frame_ok); 320 printf("ieee_t_1col %x - %x\n", (int)&fecp->ieee_t_1col, 321 fecp->ieee_t_1col); 322 printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol, 323 fecp->ieee_t_mcol); 324 printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def, 325 fecp->ieee_t_def); 326 printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol, 327 fecp->ieee_t_lcol); 328 printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol, 329 fecp->ieee_t_excol); 330 printf("ieee_t_macerr %x - %x\n", (int)&fecp->ieee_t_macerr, 331 fecp->ieee_t_macerr); 332 printf("ieee_t_cserr %x - %x\n", (int)&fecp->ieee_t_cserr, 333 fecp->ieee_t_cserr); 334 printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe, 335 fecp->ieee_t_sqe); 336 printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc, 337 fecp->ieee_t_fdxfc); 338 printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok, 339 fecp->ieee_t_octets_ok); 340 341 printf("\n"); 342 printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop, 343 fecp->rmon_r_drop); 344 printf("rmon_r_packets %x - %x\n", (int)&fecp->rmon_r_packets, 345 fecp->rmon_r_packets); 346 printf("rmon_r_bc_pkt %x - %x\n", (int)&fecp->rmon_r_bc_pkt, 347 fecp->rmon_r_bc_pkt); 348 printf("rmon_r_mc_pkt %x - %x\n", (int)&fecp->rmon_r_mc_pkt, 349 fecp->rmon_r_mc_pkt); 350 printf("rmon_r_crc_align %x - %x\n", (int)&fecp->rmon_r_crc_align, 351 fecp->rmon_r_crc_align); 352 printf("rmon_r_undersize %x - %x\n", (int)&fecp->rmon_r_undersize, 353 fecp->rmon_r_undersize); 354 printf("rmon_r_oversize %x - %x\n", (int)&fecp->rmon_r_oversize, 355 fecp->rmon_r_oversize); 356 printf("rmon_r_frag %x - %x\n", (int)&fecp->rmon_r_frag, 357 fecp->rmon_r_frag); 358 printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab, 359 fecp->rmon_r_jab); 360 printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64, 361 fecp->rmon_r_p64); 362 printf("rmon_r_p65to127 %x - %x\n", (int)&fecp->rmon_r_p65to127, 363 fecp->rmon_r_p65to127); 364 printf("rmon_r_p128to255 %x - %x\n", (int)&fecp->rmon_r_p128to255, 365 fecp->rmon_r_p128to255); 366 printf("rmon_r_p256to511 %x - %x\n", (int)&fecp->rmon_r_p256to511, 367 fecp->rmon_r_p256to511); 368 printf("rmon_r_p512to1023 %x - %x\n", (int)&fecp->rmon_r_p512to1023, 369 fecp->rmon_r_p512to1023); 370 printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047, 371 fecp->rmon_r_p1024to2047); 372 printf("rmon_r_p_gte2048 %x - %x\n", (int)&fecp->rmon_r_p_gte2048, 373 fecp->rmon_r_p_gte2048); 374 printf("rmon_r_octets %x - %x\n", (int)&fecp->rmon_r_octets, 375 fecp->rmon_r_octets); 376 377 printf("\n"); 378 printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop, 379 fecp->ieee_r_drop); 380 printf("ieee_r_frame_ok %x - %x\n", (int)&fecp->ieee_r_frame_ok, 381 fecp->ieee_r_frame_ok); 382 printf("ieee_r_crc %x - %x\n", (int)&fecp->ieee_r_crc, 383 fecp->ieee_r_crc); 384 printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align, 385 fecp->ieee_r_align); 386 printf("ieee_r_macerr %x - %x\n", (int)&fecp->ieee_r_macerr, 387 fecp->ieee_r_macerr); 388 printf("ieee_r_fdxfc %x - %x\n", (int)&fecp->ieee_r_fdxfc, 389 fecp->ieee_r_fdxfc); 390 printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok, 391 fecp->ieee_r_octets_ok); 392 393 printf("\n\n\n"); 394 } 395 #endif 396 397 int fec_init(struct eth_device *dev, bd_t * bd) 398 { 399 struct fec_info_s *info = dev->priv; 400 volatile fec_t *fecp = (fec_t *) (info->iobase); 401 int i; 402 uchar ea[6]; 403 404 fecpin_setclear(dev, 1); 405 406 fec_reset(dev); 407 408 #if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \ 409 defined (CONFIG_SYS_DISCOVER_PHY) 410 411 mii_init(); 412 413 setFecDuplexSpeed(fecp, bd, info->dup_spd); 414 #else 415 #ifndef CONFIG_SYS_DISCOVER_PHY 416 setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED); 417 #endif /* ifndef CONFIG_SYS_DISCOVER_PHY */ 418 #endif /* CONFIG_CMD_MII || CONFIG_MII */ 419 420 /* We use strictly polling mode only */ 421 fecp->eimr = 0; 422 423 /* Clear any pending interrupt */ 424 fecp->eir = 0xffffffff; 425 426 /* Set station address */ 427 if ((u32) fecp == CONFIG_SYS_FEC0_IOBASE) { 428 #ifdef CONFIG_SYS_FEC1_IOBASE 429 volatile fec_t *fecp1 = (fec_t *) (CONFIG_SYS_FEC1_IOBASE); 430 eth_env_get_enetaddr("eth1addr", ea); 431 fecp1->palr = 432 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]); 433 fecp1->paur = (ea[4] << 24) | (ea[5] << 16); 434 #endif 435 eth_env_get_enetaddr("ethaddr", ea); 436 fecp->palr = 437 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]); 438 fecp->paur = (ea[4] << 24) | (ea[5] << 16); 439 } else { 440 #ifdef CONFIG_SYS_FEC0_IOBASE 441 volatile fec_t *fecp0 = (fec_t *) (CONFIG_SYS_FEC0_IOBASE); 442 eth_env_get_enetaddr("ethaddr", ea); 443 fecp0->palr = 444 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]); 445 fecp0->paur = (ea[4] << 24) | (ea[5] << 16); 446 #endif 447 #ifdef CONFIG_SYS_FEC1_IOBASE 448 eth_env_get_enetaddr("eth1addr", ea); 449 fecp->palr = 450 (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]); 451 fecp->paur = (ea[4] << 24) | (ea[5] << 16); 452 #endif 453 } 454 455 /* Clear unicast address hash table */ 456 fecp->iaur = 0; 457 fecp->ialr = 0; 458 459 /* Clear multicast address hash table */ 460 fecp->gaur = 0; 461 fecp->galr = 0; 462 463 /* Set maximum receive buffer size. */ 464 fecp->emrbr = PKT_MAXBLR_SIZE; 465 466 /* 467 * Setup Buffers and Buffer Descriptors 468 */ 469 info->rxIdx = 0; 470 info->txIdx = 0; 471 472 /* 473 * Setup Receiver Buffer Descriptors (13.14.24.18) 474 * Settings: 475 * Empty, Wrap 476 */ 477 for (i = 0; i < PKTBUFSRX; i++) { 478 info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY; 479 info->rxbd[i].cbd_datlen = 0; /* Reset */ 480 info->rxbd[i].cbd_bufaddr = (uint) net_rx_packets[i]; 481 } 482 info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP; 483 484 /* 485 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19) 486 * Settings: 487 * Last, Tx CRC 488 */ 489 for (i = 0; i < TX_BUF_CNT; i++) { 490 info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC; 491 info->txbd[i].cbd_datlen = 0; /* Reset */ 492 info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]); 493 } 494 info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP; 495 496 /* Set receive and transmit descriptor base */ 497 fecp->erdsr = (unsigned int)(&info->rxbd[0]); 498 fecp->etdsr = (unsigned int)(&info->txbd[0]); 499 500 /* Now enable the transmit and receive processing */ 501 fecp->ecr |= FEC_ECR_ETHER_EN; 502 503 /* And last, try to fill Rx Buffer Descriptors */ 504 fecp->rdar = 0x01000000; /* Descriptor polling active */ 505 506 return 1; 507 } 508 509 void fec_reset(struct eth_device *dev) 510 { 511 struct fec_info_s *info = dev->priv; 512 volatile fec_t *fecp = (fec_t *) (info->iobase); 513 int i; 514 515 fecp->ecr = FEC_ECR_RESET; 516 for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) { 517 udelay(1); 518 } 519 if (i == FEC_RESET_DELAY) { 520 printf("FEC_RESET_DELAY timeout\n"); 521 } 522 } 523 524 void fec_halt(struct eth_device *dev) 525 { 526 struct fec_info_s *info = dev->priv; 527 528 fec_reset(dev); 529 530 fecpin_setclear(dev, 0); 531 532 info->rxIdx = info->txIdx = 0; 533 memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t)); 534 memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t)); 535 memset(info->txbuf, 0, DBUF_LENGTH); 536 } 537 538 int mcffec_initialize(bd_t * bis) 539 { 540 struct eth_device *dev; 541 int i; 542 #ifdef CONFIG_SYS_FEC_BUF_USE_SRAM 543 u32 tmp = CONFIG_SYS_INIT_RAM_ADDR + 0x1000; 544 #endif 545 546 for (i = 0; i < ARRAY_SIZE(fec_info); i++) { 547 548 dev = 549 (struct eth_device *)memalign(CONFIG_SYS_CACHELINE_SIZE, 550 sizeof *dev); 551 if (dev == NULL) 552 hang(); 553 554 memset(dev, 0, sizeof(*dev)); 555 556 sprintf(dev->name, "FEC%d", fec_info[i].index); 557 558 dev->priv = &fec_info[i]; 559 dev->init = fec_init; 560 dev->halt = fec_halt; 561 dev->send = fec_send; 562 dev->recv = fec_recv; 563 564 /* setup Receive and Transmit buffer descriptor */ 565 #ifdef CONFIG_SYS_FEC_BUF_USE_SRAM 566 fec_info[i].rxbd = (cbd_t *)((u32)fec_info[i].rxbd + tmp); 567 tmp = (u32)fec_info[i].rxbd; 568 fec_info[i].txbd = 569 (cbd_t *)((u32)fec_info[i].txbd + tmp + 570 (PKTBUFSRX * sizeof(cbd_t))); 571 tmp = (u32)fec_info[i].txbd; 572 fec_info[i].txbuf = 573 (char *)((u32)fec_info[i].txbuf + tmp + 574 (CONFIG_SYS_TX_ETH_BUFFER * sizeof(cbd_t))); 575 tmp = (u32)fec_info[i].txbuf; 576 #else 577 fec_info[i].rxbd = 578 (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE, 579 (PKTBUFSRX * sizeof(cbd_t))); 580 fec_info[i].txbd = 581 (cbd_t *) memalign(CONFIG_SYS_CACHELINE_SIZE, 582 (TX_BUF_CNT * sizeof(cbd_t))); 583 fec_info[i].txbuf = 584 (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, DBUF_LENGTH); 585 #endif 586 587 #ifdef ET_DEBUG 588 printf("rxbd %x txbd %x\n", 589 (int)fec_info[i].rxbd, (int)fec_info[i].txbd); 590 #endif 591 592 fec_info[i].phy_name = (char *)memalign(CONFIG_SYS_CACHELINE_SIZE, 32); 593 594 eth_register(dev); 595 596 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) 597 int retval; 598 struct mii_dev *mdiodev = mdio_alloc(); 599 if (!mdiodev) 600 return -ENOMEM; 601 strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN); 602 mdiodev->read = mcffec_miiphy_read; 603 mdiodev->write = mcffec_miiphy_write; 604 605 retval = mdio_register(mdiodev); 606 if (retval < 0) 607 return retval; 608 #endif 609 if (i > 0) 610 fec_info[i - 1].next = &fec_info[i]; 611 } 612 fec_info[i - 1].next = &fec_info[0]; 613 614 /* default speed */ 615 bis->bi_ethspeed = 10; 616 617 return 0; 618 } 619