1 /* 2 * Altera 10/100/1000 triple speed ethernet mac driver 3 * 4 * Copyright (C) 2008 Altera Corporation. 5 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #include <common.h> 12 #include <dm.h> 13 #include <errno.h> 14 #include <fdt_support.h> 15 #include <memalign.h> 16 #include <miiphy.h> 17 #include <net.h> 18 #include <asm/cache.h> 19 #include <asm/dma-mapping.h> 20 #include <asm/io.h> 21 #include "altera_tse.h" 22 23 DECLARE_GLOBAL_DATA_PTR; 24 25 static inline void alt_sgdma_construct_descriptor( 26 struct alt_sgdma_descriptor *desc, 27 struct alt_sgdma_descriptor *next, 28 void *read_addr, 29 void *write_addr, 30 u16 length_or_eop, 31 int generate_eop, 32 int read_fixed, 33 int write_fixed_or_sop) 34 { 35 u8 val; 36 37 /* 38 * Mark the "next" descriptor as "not" owned by hardware. This prevents 39 * The SGDMA controller from continuing to process the chain. 40 */ 41 next->descriptor_control = next->descriptor_control & 42 ~ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK; 43 44 memset(desc, 0, sizeof(struct alt_sgdma_descriptor)); 45 desc->source = virt_to_phys(read_addr); 46 desc->destination = virt_to_phys(write_addr); 47 desc->next = virt_to_phys(next); 48 desc->bytes_to_transfer = length_or_eop; 49 50 /* 51 * Set the descriptor control block as follows: 52 * - Set "owned by hardware" bit 53 * - Optionally set "generate EOP" bit 54 * - Optionally set the "read from fixed address" bit 55 * - Optionally set the "write to fixed address bit (which serves 56 * serves as a "generate SOP" control bit in memory-to-stream mode). 57 * - Set the 4-bit atlantic channel, if specified 58 * 59 * Note this step is performed after all other descriptor information 60 * has been filled out so that, if the controller already happens to be 61 * pointing at this descriptor, it will not run (via the "owned by 62 * hardware" bit) until all other descriptor has been set up. 63 */ 64 val = ALT_SGDMA_DESCRIPTOR_CONTROL_OWNED_BY_HW_MSK; 65 if (generate_eop) 66 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_GENERATE_EOP_MSK; 67 if (read_fixed) 68 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_READ_FIXED_ADDRESS_MSK; 69 if (write_fixed_or_sop) 70 val |= ALT_SGDMA_DESCRIPTOR_CONTROL_WRITE_FIXED_ADDRESS_MSK; 71 desc->descriptor_control = val; 72 } 73 74 static int alt_sgdma_wait_transfer(struct alt_sgdma_registers *regs) 75 { 76 int status; 77 ulong ctime; 78 79 /* Wait for the descriptor (chain) to complete */ 80 ctime = get_timer(0); 81 while (1) { 82 status = readl(®s->status); 83 if (!(status & ALT_SGDMA_STATUS_BUSY_MSK)) 84 break; 85 if (get_timer(ctime) > ALT_TSE_SGDMA_BUSY_TIMEOUT) { 86 status = -ETIMEDOUT; 87 debug("sgdma timeout\n"); 88 break; 89 } 90 } 91 92 /* Clear Run */ 93 writel(0, ®s->control); 94 /* Clear status */ 95 writel(0xff, ®s->status); 96 97 return status; 98 } 99 100 static int alt_sgdma_start_transfer(struct alt_sgdma_registers *regs, 101 struct alt_sgdma_descriptor *desc) 102 { 103 u32 val; 104 105 /* Point the controller at the descriptor */ 106 writel(virt_to_phys(desc), ®s->next_descriptor_pointer); 107 108 /* 109 * Set up SGDMA controller to: 110 * - Disable interrupt generation 111 * - Run once a valid descriptor is written to controller 112 * - Stop on an error with any particular descriptor 113 */ 114 val = ALT_SGDMA_CONTROL_RUN_MSK | ALT_SGDMA_CONTROL_STOP_DMA_ER_MSK; 115 writel(val, ®s->control); 116 117 return 0; 118 } 119 120 static void tse_adjust_link(struct altera_tse_priv *priv, 121 struct phy_device *phydev) 122 { 123 struct alt_tse_mac *mac_dev = priv->mac_dev; 124 u32 refvar; 125 126 if (!phydev->link) { 127 debug("%s: No link.\n", phydev->dev->name); 128 return; 129 } 130 131 refvar = readl(&mac_dev->command_config); 132 133 if (phydev->duplex) 134 refvar |= ALTERA_TSE_CMD_HD_ENA_MSK; 135 else 136 refvar &= ~ALTERA_TSE_CMD_HD_ENA_MSK; 137 138 switch (phydev->speed) { 139 case 1000: 140 refvar |= ALTERA_TSE_CMD_ETH_SPEED_MSK; 141 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK; 142 break; 143 case 100: 144 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK; 145 refvar &= ~ALTERA_TSE_CMD_ENA_10_MSK; 146 break; 147 case 10: 148 refvar &= ~ALTERA_TSE_CMD_ETH_SPEED_MSK; 149 refvar |= ALTERA_TSE_CMD_ENA_10_MSK; 150 break; 151 } 152 writel(refvar, &mac_dev->command_config); 153 } 154 155 static int altera_tse_send_sgdma(struct udevice *dev, void *packet, int length) 156 { 157 struct altera_tse_priv *priv = dev_get_priv(dev); 158 struct alt_sgdma_descriptor *tx_desc = priv->tx_desc; 159 160 alt_sgdma_construct_descriptor( 161 tx_desc, 162 tx_desc + 1, 163 packet, /* read addr */ 164 NULL, /* write addr */ 165 length, /* length or EOP ,will change for each tx */ 166 1, /* gen eop */ 167 0, /* read fixed */ 168 1 /* write fixed or sop */ 169 ); 170 171 /* send the packet */ 172 alt_sgdma_start_transfer(priv->sgdma_tx, tx_desc); 173 alt_sgdma_wait_transfer(priv->sgdma_tx); 174 debug("sent %d bytes\n", tx_desc->actual_bytes_transferred); 175 176 return tx_desc->actual_bytes_transferred; 177 } 178 179 static int altera_tse_recv_sgdma(struct udevice *dev, int flags, 180 uchar **packetp) 181 { 182 struct altera_tse_priv *priv = dev_get_priv(dev); 183 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc; 184 int packet_length; 185 186 if (rx_desc->descriptor_status & 187 ALT_SGDMA_DESCRIPTOR_STATUS_TERMINATED_BY_EOP_MSK) { 188 alt_sgdma_wait_transfer(priv->sgdma_rx); 189 packet_length = rx_desc->actual_bytes_transferred; 190 debug("recv %d bytes\n", packet_length); 191 *packetp = priv->rx_buf; 192 193 return packet_length; 194 } 195 196 return -EAGAIN; 197 } 198 199 static int altera_tse_free_pkt_sgdma(struct udevice *dev, uchar *packet, 200 int length) 201 { 202 struct altera_tse_priv *priv = dev_get_priv(dev); 203 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc; 204 205 alt_sgdma_construct_descriptor( 206 rx_desc, 207 rx_desc + 1, 208 NULL, /* read addr */ 209 priv->rx_buf, /* write addr */ 210 0, /* length or EOP */ 211 0, /* gen eop */ 212 0, /* read fixed */ 213 0 /* write fixed or sop */ 214 ); 215 216 /* setup the sgdma */ 217 alt_sgdma_start_transfer(priv->sgdma_rx, rx_desc); 218 debug("recv setup\n"); 219 220 return 0; 221 } 222 223 static void altera_tse_stop_mac(struct altera_tse_priv *priv) 224 { 225 struct alt_tse_mac *mac_dev = priv->mac_dev; 226 u32 status; 227 ulong ctime; 228 229 /* reset the mac */ 230 writel(ALTERA_TSE_CMD_SW_RESET_MSK, &mac_dev->command_config); 231 ctime = get_timer(0); 232 while (1) { 233 status = readl(&mac_dev->command_config); 234 if (!(status & ALTERA_TSE_CMD_SW_RESET_MSK)) 235 break; 236 if (get_timer(ctime) > ALT_TSE_SW_RESET_TIMEOUT) { 237 debug("Reset mac timeout\n"); 238 break; 239 } 240 } 241 } 242 243 static void altera_tse_stop_sgdma(struct udevice *dev) 244 { 245 struct altera_tse_priv *priv = dev_get_priv(dev); 246 struct alt_sgdma_registers *rx_sgdma = priv->sgdma_rx; 247 struct alt_sgdma_registers *tx_sgdma = priv->sgdma_tx; 248 struct alt_sgdma_descriptor *rx_desc = priv->rx_desc; 249 int ret; 250 251 /* clear rx desc & wait for sgdma to complete */ 252 rx_desc->descriptor_control = 0; 253 writel(0, &rx_sgdma->control); 254 ret = alt_sgdma_wait_transfer(rx_sgdma); 255 if (ret == -ETIMEDOUT) 256 writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, 257 &rx_sgdma->control); 258 259 writel(0, &tx_sgdma->control); 260 ret = alt_sgdma_wait_transfer(tx_sgdma); 261 if (ret == -ETIMEDOUT) 262 writel(ALT_SGDMA_CONTROL_SOFTWARERESET_MSK, 263 &tx_sgdma->control); 264 } 265 266 static void msgdma_reset(struct msgdma_csr *csr) 267 { 268 u32 status; 269 ulong ctime; 270 271 /* Reset mSGDMA */ 272 writel(MSGDMA_CSR_STAT_MASK, &csr->status); 273 writel(MSGDMA_CSR_CTL_RESET, &csr->control); 274 ctime = get_timer(0); 275 while (1) { 276 status = readl(&csr->status); 277 if (!(status & MSGDMA_CSR_STAT_RESETTING)) 278 break; 279 if (get_timer(ctime) > ALT_TSE_SW_RESET_TIMEOUT) { 280 debug("Reset msgdma timeout\n"); 281 break; 282 } 283 } 284 /* Clear status */ 285 writel(MSGDMA_CSR_STAT_MASK, &csr->status); 286 } 287 288 static u32 msgdma_wait(struct msgdma_csr *csr) 289 { 290 u32 status; 291 ulong ctime; 292 293 /* Wait for the descriptor to complete */ 294 ctime = get_timer(0); 295 while (1) { 296 status = readl(&csr->status); 297 if (!(status & MSGDMA_CSR_STAT_BUSY)) 298 break; 299 if (get_timer(ctime) > ALT_TSE_SGDMA_BUSY_TIMEOUT) { 300 debug("sgdma timeout\n"); 301 break; 302 } 303 } 304 /* Clear status */ 305 writel(MSGDMA_CSR_STAT_MASK, &csr->status); 306 307 return status; 308 } 309 310 static int altera_tse_send_msgdma(struct udevice *dev, void *packet, 311 int length) 312 { 313 struct altera_tse_priv *priv = dev_get_priv(dev); 314 struct msgdma_extended_desc *desc = priv->tx_desc; 315 u32 tx_buf = virt_to_phys(packet); 316 u32 status; 317 318 writel(tx_buf, &desc->read_addr_lo); 319 writel(0, &desc->read_addr_hi); 320 writel(0, &desc->write_addr_lo); 321 writel(0, &desc->write_addr_hi); 322 writel(length, &desc->len); 323 writel(0, &desc->burst_seq_num); 324 writel(MSGDMA_DESC_TX_STRIDE, &desc->stride); 325 writel(MSGDMA_DESC_CTL_TX_SINGLE, &desc->control); 326 status = msgdma_wait(priv->sgdma_tx); 327 debug("sent %d bytes, status %08x\n", length, status); 328 329 return 0; 330 } 331 332 static int altera_tse_recv_msgdma(struct udevice *dev, int flags, 333 uchar **packetp) 334 { 335 struct altera_tse_priv *priv = dev_get_priv(dev); 336 struct msgdma_csr *csr = priv->sgdma_rx; 337 struct msgdma_response *resp = priv->rx_resp; 338 u32 level, length, status; 339 340 level = readl(&csr->resp_fill_level); 341 if (level & 0xffff) { 342 length = readl(&resp->bytes_transferred); 343 status = readl(&resp->status); 344 debug("recv %d bytes, status %08x\n", length, status); 345 *packetp = priv->rx_buf; 346 347 return length; 348 } 349 350 return -EAGAIN; 351 } 352 353 static int altera_tse_free_pkt_msgdma(struct udevice *dev, uchar *packet, 354 int length) 355 { 356 struct altera_tse_priv *priv = dev_get_priv(dev); 357 struct msgdma_extended_desc *desc = priv->rx_desc; 358 u32 rx_buf = virt_to_phys(priv->rx_buf); 359 360 writel(0, &desc->read_addr_lo); 361 writel(0, &desc->read_addr_hi); 362 writel(rx_buf, &desc->write_addr_lo); 363 writel(0, &desc->write_addr_hi); 364 writel(PKTSIZE_ALIGN, &desc->len); 365 writel(0, &desc->burst_seq_num); 366 writel(MSGDMA_DESC_RX_STRIDE, &desc->stride); 367 writel(MSGDMA_DESC_CTL_RX_SINGLE, &desc->control); 368 debug("recv setup\n"); 369 370 return 0; 371 } 372 373 static void altera_tse_stop_msgdma(struct udevice *dev) 374 { 375 struct altera_tse_priv *priv = dev_get_priv(dev); 376 377 msgdma_reset(priv->sgdma_rx); 378 msgdma_reset(priv->sgdma_tx); 379 } 380 381 static int tse_mdio_read(struct mii_dev *bus, int addr, int devad, int reg) 382 { 383 struct altera_tse_priv *priv = bus->priv; 384 struct alt_tse_mac *mac_dev = priv->mac_dev; 385 u32 value; 386 387 /* set mdio address */ 388 writel(addr, &mac_dev->mdio_phy1_addr); 389 /* get the data */ 390 value = readl(&mac_dev->mdio_phy1[reg]); 391 392 return value & 0xffff; 393 } 394 395 static int tse_mdio_write(struct mii_dev *bus, int addr, int devad, int reg, 396 u16 val) 397 { 398 struct altera_tse_priv *priv = bus->priv; 399 struct alt_tse_mac *mac_dev = priv->mac_dev; 400 401 /* set mdio address */ 402 writel(addr, &mac_dev->mdio_phy1_addr); 403 /* set the data */ 404 writel(val, &mac_dev->mdio_phy1[reg]); 405 406 return 0; 407 } 408 409 static int tse_mdio_init(const char *name, struct altera_tse_priv *priv) 410 { 411 struct mii_dev *bus = mdio_alloc(); 412 413 if (!bus) { 414 printf("Failed to allocate MDIO bus\n"); 415 return -ENOMEM; 416 } 417 418 bus->read = tse_mdio_read; 419 bus->write = tse_mdio_write; 420 snprintf(bus->name, sizeof(bus->name), "%s", name); 421 422 bus->priv = (void *)priv; 423 424 return mdio_register(bus); 425 } 426 427 static int tse_phy_init(struct altera_tse_priv *priv, void *dev) 428 { 429 struct phy_device *phydev; 430 unsigned int mask = 0xffffffff; 431 432 if (priv->phyaddr) 433 mask = 1 << priv->phyaddr; 434 435 phydev = phy_find_by_mask(priv->bus, mask, priv->interface); 436 if (!phydev) 437 return -ENODEV; 438 439 phy_connect_dev(phydev, dev); 440 441 phydev->supported &= PHY_GBIT_FEATURES; 442 phydev->advertising = phydev->supported; 443 444 priv->phydev = phydev; 445 phy_config(phydev); 446 447 return 0; 448 } 449 450 static int altera_tse_write_hwaddr(struct udevice *dev) 451 { 452 struct altera_tse_priv *priv = dev_get_priv(dev); 453 struct alt_tse_mac *mac_dev = priv->mac_dev; 454 struct eth_pdata *pdata = dev_get_platdata(dev); 455 u8 *hwaddr = pdata->enetaddr; 456 u32 mac_lo, mac_hi; 457 458 mac_lo = (hwaddr[3] << 24) | (hwaddr[2] << 16) | 459 (hwaddr[1] << 8) | hwaddr[0]; 460 mac_hi = (hwaddr[5] << 8) | hwaddr[4]; 461 debug("Set MAC address to 0x%04x%08x\n", mac_hi, mac_lo); 462 463 writel(mac_lo, &mac_dev->mac_addr_0); 464 writel(mac_hi, &mac_dev->mac_addr_1); 465 writel(mac_lo, &mac_dev->supp_mac_addr_0_0); 466 writel(mac_hi, &mac_dev->supp_mac_addr_0_1); 467 writel(mac_lo, &mac_dev->supp_mac_addr_1_0); 468 writel(mac_hi, &mac_dev->supp_mac_addr_1_1); 469 writel(mac_lo, &mac_dev->supp_mac_addr_2_0); 470 writel(mac_hi, &mac_dev->supp_mac_addr_2_1); 471 writel(mac_lo, &mac_dev->supp_mac_addr_3_0); 472 writel(mac_hi, &mac_dev->supp_mac_addr_3_1); 473 474 return 0; 475 } 476 477 static int altera_tse_send(struct udevice *dev, void *packet, int length) 478 { 479 struct altera_tse_priv *priv = dev_get_priv(dev); 480 unsigned long tx_buf = (unsigned long)packet; 481 482 flush_dcache_range(tx_buf, tx_buf + length); 483 484 return priv->ops->send(dev, packet, length); 485 } 486 487 static int altera_tse_recv(struct udevice *dev, int flags, uchar **packetp) 488 { 489 struct altera_tse_priv *priv = dev_get_priv(dev); 490 491 return priv->ops->recv(dev, flags, packetp); 492 } 493 494 static int altera_tse_free_pkt(struct udevice *dev, uchar *packet, 495 int length) 496 { 497 struct altera_tse_priv *priv = dev_get_priv(dev); 498 unsigned long rx_buf = (unsigned long)priv->rx_buf; 499 500 invalidate_dcache_range(rx_buf, rx_buf + PKTSIZE_ALIGN); 501 502 return priv->ops->free_pkt(dev, packet, length); 503 } 504 505 static void altera_tse_stop(struct udevice *dev) 506 { 507 struct altera_tse_priv *priv = dev_get_priv(dev); 508 509 priv->ops->stop(dev); 510 altera_tse_stop_mac(priv); 511 } 512 513 static int altera_tse_start(struct udevice *dev) 514 { 515 struct altera_tse_priv *priv = dev_get_priv(dev); 516 struct alt_tse_mac *mac_dev = priv->mac_dev; 517 u32 val; 518 int ret; 519 520 /* need to create sgdma */ 521 debug("Configuring rx desc\n"); 522 altera_tse_free_pkt(dev, priv->rx_buf, PKTSIZE_ALIGN); 523 /* start TSE */ 524 debug("Configuring TSE Mac\n"); 525 /* Initialize MAC registers */ 526 writel(PKTSIZE_ALIGN, &mac_dev->max_frame_length); 527 writel(priv->rx_fifo_depth - 16, &mac_dev->rx_sel_empty_threshold); 528 writel(0, &mac_dev->rx_sel_full_threshold); 529 writel(priv->tx_fifo_depth - 16, &mac_dev->tx_sel_empty_threshold); 530 writel(0, &mac_dev->tx_sel_full_threshold); 531 writel(8, &mac_dev->rx_almost_empty_threshold); 532 writel(8, &mac_dev->rx_almost_full_threshold); 533 writel(8, &mac_dev->tx_almost_empty_threshold); 534 writel(3, &mac_dev->tx_almost_full_threshold); 535 536 /* NO Shift */ 537 writel(0, &mac_dev->rx_cmd_stat); 538 writel(0, &mac_dev->tx_cmd_stat); 539 540 /* enable MAC */ 541 val = ALTERA_TSE_CMD_TX_ENA_MSK | ALTERA_TSE_CMD_RX_ENA_MSK; 542 writel(val, &mac_dev->command_config); 543 544 /* Start up the PHY */ 545 ret = phy_startup(priv->phydev); 546 if (ret) { 547 debug("Could not initialize PHY %s\n", 548 priv->phydev->dev->name); 549 return ret; 550 } 551 552 tse_adjust_link(priv, priv->phydev); 553 554 if (!priv->phydev->link) 555 return -EIO; 556 557 return 0; 558 } 559 560 static const struct tse_ops tse_sgdma_ops = { 561 .send = altera_tse_send_sgdma, 562 .recv = altera_tse_recv_sgdma, 563 .free_pkt = altera_tse_free_pkt_sgdma, 564 .stop = altera_tse_stop_sgdma, 565 }; 566 567 static const struct tse_ops tse_msgdma_ops = { 568 .send = altera_tse_send_msgdma, 569 .recv = altera_tse_recv_msgdma, 570 .free_pkt = altera_tse_free_pkt_msgdma, 571 .stop = altera_tse_stop_msgdma, 572 }; 573 574 static int altera_tse_probe(struct udevice *dev) 575 { 576 struct eth_pdata *pdata = dev_get_platdata(dev); 577 struct altera_tse_priv *priv = dev_get_priv(dev); 578 void *blob = (void *)gd->fdt_blob; 579 int node = dev_of_offset(dev); 580 const char *list, *end; 581 const fdt32_t *cell; 582 void *base, *desc_mem = NULL; 583 unsigned long addr, size; 584 int parent, addrc, sizec; 585 int len, idx; 586 int ret; 587 588 priv->dma_type = dev_get_driver_data(dev); 589 if (priv->dma_type == ALT_SGDMA) 590 priv->ops = &tse_sgdma_ops; 591 else 592 priv->ops = &tse_msgdma_ops; 593 /* 594 * decode regs. there are multiple reg tuples, and they need to 595 * match with reg-names. 596 */ 597 parent = fdt_parent_offset(blob, node); 598 of_bus_default_count_cells(blob, parent, &addrc, &sizec); 599 list = fdt_getprop(blob, node, "reg-names", &len); 600 if (!list) 601 return -ENOENT; 602 end = list + len; 603 cell = fdt_getprop(blob, node, "reg", &len); 604 if (!cell) 605 return -ENOENT; 606 idx = 0; 607 while (list < end) { 608 addr = fdt_translate_address((void *)blob, 609 node, cell + idx); 610 size = fdt_addr_to_cpu(cell[idx + addrc]); 611 base = map_physmem(addr, size, MAP_NOCACHE); 612 len = strlen(list); 613 if (strcmp(list, "control_port") == 0) 614 priv->mac_dev = base; 615 else if (strcmp(list, "rx_csr") == 0) 616 priv->sgdma_rx = base; 617 else if (strcmp(list, "rx_desc") == 0) 618 priv->rx_desc = base; 619 else if (strcmp(list, "rx_resp") == 0) 620 priv->rx_resp = base; 621 else if (strcmp(list, "tx_csr") == 0) 622 priv->sgdma_tx = base; 623 else if (strcmp(list, "tx_desc") == 0) 624 priv->tx_desc = base; 625 else if (strcmp(list, "s1") == 0) 626 desc_mem = base; 627 idx += addrc + sizec; 628 list += (len + 1); 629 } 630 /* decode fifo depth */ 631 priv->rx_fifo_depth = fdtdec_get_int(blob, node, 632 "rx-fifo-depth", 0); 633 priv->tx_fifo_depth = fdtdec_get_int(blob, node, 634 "tx-fifo-depth", 0); 635 /* decode phy */ 636 addr = fdtdec_get_int(blob, node, 637 "phy-handle", 0); 638 addr = fdt_node_offset_by_phandle(blob, addr); 639 priv->phyaddr = fdtdec_get_int(blob, addr, 640 "reg", 0); 641 /* init desc */ 642 if (priv->dma_type == ALT_SGDMA) { 643 len = sizeof(struct alt_sgdma_descriptor) * 4; 644 if (!desc_mem) { 645 desc_mem = dma_alloc_coherent(len, &addr); 646 if (!desc_mem) 647 return -ENOMEM; 648 } 649 memset(desc_mem, 0, len); 650 priv->tx_desc = desc_mem; 651 priv->rx_desc = priv->tx_desc + 652 2 * sizeof(struct alt_sgdma_descriptor); 653 } 654 /* allocate recv packet buffer */ 655 priv->rx_buf = malloc_cache_aligned(PKTSIZE_ALIGN); 656 if (!priv->rx_buf) 657 return -ENOMEM; 658 659 /* stop controller */ 660 debug("Reset TSE & SGDMAs\n"); 661 altera_tse_stop(dev); 662 663 /* start the phy */ 664 priv->interface = pdata->phy_interface; 665 tse_mdio_init(dev->name, priv); 666 priv->bus = miiphy_get_dev_by_name(dev->name); 667 668 ret = tse_phy_init(priv, dev); 669 670 return ret; 671 } 672 673 static int altera_tse_ofdata_to_platdata(struct udevice *dev) 674 { 675 struct eth_pdata *pdata = dev_get_platdata(dev); 676 const char *phy_mode; 677 678 pdata->phy_interface = -1; 679 phy_mode = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), "phy-mode", 680 NULL); 681 if (phy_mode) 682 pdata->phy_interface = phy_get_interface_by_name(phy_mode); 683 if (pdata->phy_interface == -1) { 684 debug("%s: Invalid PHY interface '%s'\n", __func__, phy_mode); 685 return -EINVAL; 686 } 687 688 return 0; 689 } 690 691 static const struct eth_ops altera_tse_ops = { 692 .start = altera_tse_start, 693 .send = altera_tse_send, 694 .recv = altera_tse_recv, 695 .free_pkt = altera_tse_free_pkt, 696 .stop = altera_tse_stop, 697 .write_hwaddr = altera_tse_write_hwaddr, 698 }; 699 700 static const struct udevice_id altera_tse_ids[] = { 701 { .compatible = "altr,tse-msgdma-1.0", .data = ALT_MSGDMA }, 702 { .compatible = "altr,tse-1.0", .data = ALT_SGDMA }, 703 {} 704 }; 705 706 U_BOOT_DRIVER(altera_tse) = { 707 .name = "altera_tse", 708 .id = UCLASS_ETH, 709 .of_match = altera_tse_ids, 710 .ops = &altera_tse_ops, 711 .ofdata_to_platdata = altera_tse_ofdata_to_platdata, 712 .platdata_auto_alloc_size = sizeof(struct eth_pdata), 713 .priv_auto_alloc_size = sizeof(struct altera_tse_priv), 714 .probe = altera_tse_probe, 715 }; 716