1 /* 2 * (C) Copyright 2009 3 * Marvell Semiconductor <www.marvell.com> 4 * Written-by: Prafulla Wadaskar <prafulla@marvell.com> 5 * 6 * (C) Copyright 2003 7 * Ingo Assmus <ingo.assmus@keymile.com> 8 * 9 * based on - Driver for MV64360X ethernet ports 10 * Copyright (C) 2002 rabeeh@galileo.co.il 11 * 12 * SPDX-License-Identifier: GPL-2.0+ 13 */ 14 15 #include <common.h> 16 #include <net.h> 17 #include <malloc.h> 18 #include <miiphy.h> 19 #include <asm/io.h> 20 #include <asm/errno.h> 21 #include <asm/types.h> 22 #include <asm/system.h> 23 #include <asm/byteorder.h> 24 #include <asm/arch/cpu.h> 25 26 #if defined(CONFIG_KIRKWOOD) 27 #include <asm/arch/soc.h> 28 #elif defined(CONFIG_ORION5X) 29 #include <asm/arch/orion5x.h> 30 #elif defined(CONFIG_DOVE) 31 #include <asm/arch/dove.h> 32 #endif 33 34 #include "mvgbe.h" 35 36 DECLARE_GLOBAL_DATA_PTR; 37 38 #ifndef CONFIG_MVGBE_PORTS 39 # define CONFIG_MVGBE_PORTS {0, 0} 40 #endif 41 42 #define MV_PHY_ADR_REQUEST 0xee 43 #define MVGBE_SMI_REG (((struct mvgbe_registers *)MVGBE0_BASE)->smi) 44 45 #if defined(CONFIG_PHYLIB) || defined(CONFIG_MII) || defined(CONFIG_CMD_MII) 46 /* 47 * smi_reg_read - miiphy_read callback function. 48 * 49 * Returns 16bit phy register value, or 0xffff on error 50 */ 51 static int smi_reg_read(const char *devname, u8 phy_adr, u8 reg_ofs, u16 * data) 52 { 53 struct eth_device *dev = eth_get_dev_by_name(devname); 54 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 55 struct mvgbe_registers *regs = dmvgbe->regs; 56 u32 smi_reg; 57 u32 timeout; 58 59 /* Phyadr read request */ 60 if (phy_adr == MV_PHY_ADR_REQUEST && 61 reg_ofs == MV_PHY_ADR_REQUEST) { 62 /* */ 63 *data = (u16) (MVGBE_REG_RD(regs->phyadr) & PHYADR_MASK); 64 return 0; 65 } 66 /* check parameters */ 67 if (phy_adr > PHYADR_MASK) { 68 printf("Err..(%s) Invalid PHY address %d\n", 69 __func__, phy_adr); 70 return -EFAULT; 71 } 72 if (reg_ofs > PHYREG_MASK) { 73 printf("Err..(%s) Invalid register offset %d\n", 74 __func__, reg_ofs); 75 return -EFAULT; 76 } 77 78 timeout = MVGBE_PHY_SMI_TIMEOUT; 79 /* wait till the SMI is not busy */ 80 do { 81 /* read smi register */ 82 smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG); 83 if (timeout-- == 0) { 84 printf("Err..(%s) SMI busy timeout\n", __func__); 85 return -EFAULT; 86 } 87 } while (smi_reg & MVGBE_PHY_SMI_BUSY_MASK); 88 89 /* fill the phy address and regiser offset and read opcode */ 90 smi_reg = (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS) 91 | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS) 92 | MVGBE_PHY_SMI_OPCODE_READ; 93 94 /* write the smi register */ 95 MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg); 96 97 /*wait till read value is ready */ 98 timeout = MVGBE_PHY_SMI_TIMEOUT; 99 100 do { 101 /* read smi register */ 102 smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG); 103 if (timeout-- == 0) { 104 printf("Err..(%s) SMI read ready timeout\n", 105 __func__); 106 return -EFAULT; 107 } 108 } while (!(smi_reg & MVGBE_PHY_SMI_READ_VALID_MASK)); 109 110 /* Wait for the data to update in the SMI register */ 111 for (timeout = 0; timeout < MVGBE_PHY_SMI_TIMEOUT; timeout++) 112 ; 113 114 *data = (u16) (MVGBE_REG_RD(MVGBE_SMI_REG) & MVGBE_PHY_SMI_DATA_MASK); 115 116 debug("%s:(adr %d, off %d) value= %04x\n", __func__, phy_adr, reg_ofs, 117 *data); 118 119 return 0; 120 } 121 122 /* 123 * smi_reg_write - imiiphy_write callback function. 124 * 125 * Returns 0 if write succeed, -EINVAL on bad parameters 126 * -ETIME on timeout 127 */ 128 static int smi_reg_write(const char *devname, u8 phy_adr, u8 reg_ofs, u16 data) 129 { 130 struct eth_device *dev = eth_get_dev_by_name(devname); 131 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 132 struct mvgbe_registers *regs = dmvgbe->regs; 133 u32 smi_reg; 134 u32 timeout; 135 136 /* Phyadr write request*/ 137 if (phy_adr == MV_PHY_ADR_REQUEST && 138 reg_ofs == MV_PHY_ADR_REQUEST) { 139 MVGBE_REG_WR(regs->phyadr, data); 140 return 0; 141 } 142 143 /* check parameters */ 144 if (phy_adr > PHYADR_MASK) { 145 printf("Err..(%s) Invalid phy address\n", __func__); 146 return -EINVAL; 147 } 148 if (reg_ofs > PHYREG_MASK) { 149 printf("Err..(%s) Invalid register offset\n", __func__); 150 return -EINVAL; 151 } 152 153 /* wait till the SMI is not busy */ 154 timeout = MVGBE_PHY_SMI_TIMEOUT; 155 do { 156 /* read smi register */ 157 smi_reg = MVGBE_REG_RD(MVGBE_SMI_REG); 158 if (timeout-- == 0) { 159 printf("Err..(%s) SMI busy timeout\n", __func__); 160 return -ETIME; 161 } 162 } while (smi_reg & MVGBE_PHY_SMI_BUSY_MASK); 163 164 /* fill the phy addr and reg offset and write opcode and data */ 165 smi_reg = (data << MVGBE_PHY_SMI_DATA_OFFS); 166 smi_reg |= (phy_adr << MVGBE_PHY_SMI_DEV_ADDR_OFFS) 167 | (reg_ofs << MVGBE_SMI_REG_ADDR_OFFS); 168 smi_reg &= ~MVGBE_PHY_SMI_OPCODE_READ; 169 170 /* write the smi register */ 171 MVGBE_REG_WR(MVGBE_SMI_REG, smi_reg); 172 173 return 0; 174 } 175 #endif 176 177 #if defined(CONFIG_PHYLIB) 178 int mvgbe_phy_read(struct mii_dev *bus, int phy_addr, int dev_addr, 179 int reg_addr) 180 { 181 u16 data; 182 int ret; 183 ret = smi_reg_read(bus->name, phy_addr, reg_addr, &data); 184 if (ret) 185 return ret; 186 return data; 187 } 188 189 int mvgbe_phy_write(struct mii_dev *bus, int phy_addr, int dev_addr, 190 int reg_addr, u16 data) 191 { 192 return smi_reg_write(bus->name, phy_addr, reg_addr, data); 193 } 194 #endif 195 196 /* Stop and checks all queues */ 197 static void stop_queue(u32 * qreg) 198 { 199 u32 reg_data; 200 201 reg_data = readl(qreg); 202 203 if (reg_data & 0xFF) { 204 /* Issue stop command for active channels only */ 205 writel((reg_data << 8), qreg); 206 207 /* Wait for all queue activity to terminate. */ 208 do { 209 /* 210 * Check port cause register that all queues 211 * are stopped 212 */ 213 reg_data = readl(qreg); 214 } 215 while (reg_data & 0xFF); 216 } 217 } 218 219 /* 220 * set_access_control - Config address decode parameters for Ethernet unit 221 * 222 * This function configures the address decode parameters for the Gigabit 223 * Ethernet Controller according the given parameters struct. 224 * 225 * @regs Register struct pointer. 226 * @param Address decode parameter struct. 227 */ 228 static void set_access_control(struct mvgbe_registers *regs, 229 struct mvgbe_winparam *param) 230 { 231 u32 access_prot_reg; 232 233 /* Set access control register */ 234 access_prot_reg = MVGBE_REG_RD(regs->epap); 235 /* clear window permission */ 236 access_prot_reg &= (~(3 << (param->win * 2))); 237 access_prot_reg |= (param->access_ctrl << (param->win * 2)); 238 MVGBE_REG_WR(regs->epap, access_prot_reg); 239 240 /* Set window Size reg (SR) */ 241 MVGBE_REG_WR(regs->barsz[param->win].size, 242 (((param->size / 0x10000) - 1) << 16)); 243 244 /* Set window Base address reg (BA) */ 245 MVGBE_REG_WR(regs->barsz[param->win].bar, 246 (param->target | param->attrib | param->base_addr)); 247 /* High address remap reg (HARR) */ 248 if (param->win < 4) 249 MVGBE_REG_WR(regs->ha_remap[param->win], param->high_addr); 250 251 /* Base address enable reg (BARER) */ 252 if (param->enable == 1) 253 MVGBE_REG_BITS_RESET(regs->bare, (1 << param->win)); 254 else 255 MVGBE_REG_BITS_SET(regs->bare, (1 << param->win)); 256 } 257 258 static void set_dram_access(struct mvgbe_registers *regs) 259 { 260 struct mvgbe_winparam win_param; 261 int i; 262 263 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 264 /* Set access parameters for DRAM bank i */ 265 win_param.win = i; /* Use Ethernet window i */ 266 /* Window target - DDR */ 267 win_param.target = MVGBE_TARGET_DRAM; 268 /* Enable full access */ 269 win_param.access_ctrl = EWIN_ACCESS_FULL; 270 win_param.high_addr = 0; 271 /* Get bank base and size */ 272 win_param.base_addr = gd->bd->bi_dram[i].start; 273 win_param.size = gd->bd->bi_dram[i].size; 274 if (win_param.size == 0) 275 win_param.enable = 0; 276 else 277 win_param.enable = 1; /* Enable the access */ 278 279 /* Enable DRAM bank */ 280 switch (i) { 281 case 0: 282 win_param.attrib = EBAR_DRAM_CS0; 283 break; 284 case 1: 285 win_param.attrib = EBAR_DRAM_CS1; 286 break; 287 case 2: 288 win_param.attrib = EBAR_DRAM_CS2; 289 break; 290 case 3: 291 win_param.attrib = EBAR_DRAM_CS3; 292 break; 293 default: 294 /* invalid bank, disable access */ 295 win_param.enable = 0; 296 win_param.attrib = 0; 297 break; 298 } 299 /* Set the access control for address window(EPAPR) RD/WR */ 300 set_access_control(regs, &win_param); 301 } 302 } 303 304 /* 305 * port_init_mac_tables - Clear all entrance in the UC, SMC and OMC tables 306 * 307 * Go through all the DA filter tables (Unicast, Special Multicast & Other 308 * Multicast) and set each entry to 0. 309 */ 310 static void port_init_mac_tables(struct mvgbe_registers *regs) 311 { 312 int table_index; 313 314 /* Clear DA filter unicast table (Ex_dFUT) */ 315 for (table_index = 0; table_index < 4; ++table_index) 316 MVGBE_REG_WR(regs->dfut[table_index], 0); 317 318 for (table_index = 0; table_index < 64; ++table_index) { 319 /* Clear DA filter special multicast table (Ex_dFSMT) */ 320 MVGBE_REG_WR(regs->dfsmt[table_index], 0); 321 /* Clear DA filter other multicast table (Ex_dFOMT) */ 322 MVGBE_REG_WR(regs->dfomt[table_index], 0); 323 } 324 } 325 326 /* 327 * port_uc_addr - This function Set the port unicast address table 328 * 329 * This function locates the proper entry in the Unicast table for the 330 * specified MAC nibble and sets its properties according to function 331 * parameters. 332 * This function add/removes MAC addresses from the port unicast address 333 * table. 334 * 335 * @uc_nibble Unicast MAC Address last nibble. 336 * @option 0 = Add, 1 = remove address. 337 * 338 * RETURN: 1 if output succeeded. 0 if option parameter is invalid. 339 */ 340 static int port_uc_addr(struct mvgbe_registers *regs, u8 uc_nibble, 341 int option) 342 { 343 u32 unicast_reg; 344 u32 tbl_offset; 345 u32 reg_offset; 346 347 /* Locate the Unicast table entry */ 348 uc_nibble = (0xf & uc_nibble); 349 /* Register offset from unicast table base */ 350 tbl_offset = (uc_nibble / 4); 351 /* Entry offset within the above register */ 352 reg_offset = uc_nibble % 4; 353 354 switch (option) { 355 case REJECT_MAC_ADDR: 356 /* 357 * Clear accepts frame bit at specified unicast 358 * DA table entry 359 */ 360 unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]); 361 unicast_reg &= (0xFF << (8 * reg_offset)); 362 MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg); 363 break; 364 case ACCEPT_MAC_ADDR: 365 /* Set accepts frame bit at unicast DA filter table entry */ 366 unicast_reg = MVGBE_REG_RD(regs->dfut[tbl_offset]); 367 unicast_reg &= (0xFF << (8 * reg_offset)); 368 unicast_reg |= ((0x01 | (RXUQ << 1)) << (8 * reg_offset)); 369 MVGBE_REG_WR(regs->dfut[tbl_offset], unicast_reg); 370 break; 371 default: 372 return 0; 373 } 374 return 1; 375 } 376 377 /* 378 * port_uc_addr_set - This function Set the port Unicast address. 379 */ 380 static void port_uc_addr_set(struct mvgbe_registers *regs, u8 * p_addr) 381 { 382 u32 mac_h; 383 u32 mac_l; 384 385 mac_l = (p_addr[4] << 8) | (p_addr[5]); 386 mac_h = (p_addr[0] << 24) | (p_addr[1] << 16) | (p_addr[2] << 8) | 387 (p_addr[3] << 0); 388 389 MVGBE_REG_WR(regs->macal, mac_l); 390 MVGBE_REG_WR(regs->macah, mac_h); 391 392 /* Accept frames of this address */ 393 port_uc_addr(regs, p_addr[5], ACCEPT_MAC_ADDR); 394 } 395 396 /* 397 * mvgbe_init_rx_desc_ring - Curve a Rx chain desc list and buffer in memory. 398 */ 399 static void mvgbe_init_rx_desc_ring(struct mvgbe_device *dmvgbe) 400 { 401 struct mvgbe_rxdesc *p_rx_desc; 402 int i; 403 404 /* initialize the Rx descriptors ring */ 405 p_rx_desc = dmvgbe->p_rxdesc; 406 for (i = 0; i < RINGSZ; i++) { 407 p_rx_desc->cmd_sts = 408 MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT; 409 p_rx_desc->buf_size = PKTSIZE_ALIGN; 410 p_rx_desc->byte_cnt = 0; 411 p_rx_desc->buf_ptr = dmvgbe->p_rxbuf + i * PKTSIZE_ALIGN; 412 if (i == (RINGSZ - 1)) 413 p_rx_desc->nxtdesc_p = dmvgbe->p_rxdesc; 414 else { 415 p_rx_desc->nxtdesc_p = (struct mvgbe_rxdesc *) 416 ((u32) p_rx_desc + MV_RXQ_DESC_ALIGNED_SIZE); 417 p_rx_desc = p_rx_desc->nxtdesc_p; 418 } 419 } 420 dmvgbe->p_rxdesc_curr = dmvgbe->p_rxdesc; 421 } 422 423 static int mvgbe_init(struct eth_device *dev) 424 { 425 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 426 struct mvgbe_registers *regs = dmvgbe->regs; 427 #if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && \ 428 !defined(CONFIG_PHYLIB) && \ 429 defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) 430 int i; 431 #endif 432 /* setup RX rings */ 433 mvgbe_init_rx_desc_ring(dmvgbe); 434 435 /* Clear the ethernet port interrupts */ 436 MVGBE_REG_WR(regs->ic, 0); 437 MVGBE_REG_WR(regs->ice, 0); 438 /* Unmask RX buffer and TX end interrupt */ 439 MVGBE_REG_WR(regs->pim, INT_CAUSE_UNMASK_ALL); 440 /* Unmask phy and link status changes interrupts */ 441 MVGBE_REG_WR(regs->peim, INT_CAUSE_UNMASK_ALL_EXT); 442 443 set_dram_access(regs); 444 port_init_mac_tables(regs); 445 port_uc_addr_set(regs, dmvgbe->dev.enetaddr); 446 447 /* Assign port configuration and command. */ 448 MVGBE_REG_WR(regs->pxc, PRT_CFG_VAL); 449 MVGBE_REG_WR(regs->pxcx, PORT_CFG_EXTEND_VALUE); 450 MVGBE_REG_WR(regs->psc0, PORT_SERIAL_CONTROL_VALUE); 451 452 /* Assign port SDMA configuration */ 453 MVGBE_REG_WR(regs->sdc, PORT_SDMA_CFG_VALUE); 454 MVGBE_REG_WR(regs->tqx[0].qxttbc, QTKNBKT_DEF_VAL); 455 MVGBE_REG_WR(regs->tqx[0].tqxtbc, 456 (QMTBS_DEF_VAL << 16) | QTKNRT_DEF_VAL); 457 /* Turn off the port/RXUQ bandwidth limitation */ 458 MVGBE_REG_WR(regs->pmtu, 0); 459 460 /* Set maximum receive buffer to 9700 bytes */ 461 MVGBE_REG_WR(regs->psc0, MVGBE_MAX_RX_PACKET_9700BYTE 462 | (MVGBE_REG_RD(regs->psc0) & MRU_MASK)); 463 464 /* Enable port initially */ 465 MVGBE_REG_BITS_SET(regs->psc0, MVGBE_SERIAL_PORT_EN); 466 467 /* 468 * Set ethernet MTU for leaky bucket mechanism to 0 - this will 469 * disable the leaky bucket mechanism . 470 */ 471 MVGBE_REG_WR(regs->pmtu, 0); 472 473 /* Assignment of Rx CRDB of given RXUQ */ 474 MVGBE_REG_WR(regs->rxcdp[RXUQ], (u32) dmvgbe->p_rxdesc_curr); 475 /* ensure previous write is done before enabling Rx DMA */ 476 isb(); 477 /* Enable port Rx. */ 478 MVGBE_REG_WR(regs->rqc, (1 << RXUQ)); 479 480 #if (defined(CONFIG_MII) || defined(CONFIG_CMD_MII)) && \ 481 !defined(CONFIG_PHYLIB) && \ 482 defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) 483 /* Wait up to 5s for the link status */ 484 for (i = 0; i < 5; i++) { 485 u16 phyadr; 486 487 miiphy_read(dev->name, MV_PHY_ADR_REQUEST, 488 MV_PHY_ADR_REQUEST, &phyadr); 489 /* Return if we get link up */ 490 if (miiphy_link(dev->name, phyadr)) 491 return 0; 492 udelay(1000000); 493 } 494 495 printf("No link on %s\n", dev->name); 496 return -1; 497 #endif 498 return 0; 499 } 500 501 static int mvgbe_halt(struct eth_device *dev) 502 { 503 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 504 struct mvgbe_registers *regs = dmvgbe->regs; 505 506 /* Disable all gigE address decoder */ 507 MVGBE_REG_WR(regs->bare, 0x3f); 508 509 stop_queue(®s->tqc); 510 stop_queue(®s->rqc); 511 512 /* Disable port */ 513 MVGBE_REG_BITS_RESET(regs->psc0, MVGBE_SERIAL_PORT_EN); 514 /* Set port is not reset */ 515 MVGBE_REG_BITS_RESET(regs->psc1, 1 << 4); 516 #ifdef CONFIG_SYS_MII_MODE 517 /* Set MMI interface up */ 518 MVGBE_REG_BITS_RESET(regs->psc1, 1 << 3); 519 #endif 520 /* Disable & mask ethernet port interrupts */ 521 MVGBE_REG_WR(regs->ic, 0); 522 MVGBE_REG_WR(regs->ice, 0); 523 MVGBE_REG_WR(regs->pim, 0); 524 MVGBE_REG_WR(regs->peim, 0); 525 526 return 0; 527 } 528 529 static int mvgbe_write_hwaddr(struct eth_device *dev) 530 { 531 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 532 struct mvgbe_registers *regs = dmvgbe->regs; 533 534 /* Programs net device MAC address after initialization */ 535 port_uc_addr_set(regs, dmvgbe->dev.enetaddr); 536 return 0; 537 } 538 539 static int mvgbe_send(struct eth_device *dev, void *dataptr, int datasize) 540 { 541 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 542 struct mvgbe_registers *regs = dmvgbe->regs; 543 struct mvgbe_txdesc *p_txdesc = dmvgbe->p_txdesc; 544 void *p = (void *)dataptr; 545 u32 cmd_sts; 546 u32 txuq0_reg_addr; 547 548 /* Copy buffer if it's misaligned */ 549 if ((u32) dataptr & 0x07) { 550 if (datasize > PKTSIZE_ALIGN) { 551 printf("Non-aligned data too large (%d)\n", 552 datasize); 553 return -1; 554 } 555 556 memcpy(dmvgbe->p_aligned_txbuf, p, datasize); 557 p = dmvgbe->p_aligned_txbuf; 558 } 559 560 p_txdesc->cmd_sts = MVGBE_ZERO_PADDING | MVGBE_GEN_CRC; 561 p_txdesc->cmd_sts |= MVGBE_TX_FIRST_DESC | MVGBE_TX_LAST_DESC; 562 p_txdesc->cmd_sts |= MVGBE_BUFFER_OWNED_BY_DMA; 563 p_txdesc->cmd_sts |= MVGBE_TX_EN_INTERRUPT; 564 p_txdesc->buf_ptr = (u8 *) p; 565 p_txdesc->byte_cnt = datasize; 566 567 /* Set this tc desc as zeroth TXUQ */ 568 txuq0_reg_addr = (u32)®s->tcqdp[TXUQ]; 569 writel((u32) p_txdesc, txuq0_reg_addr); 570 571 /* ensure tx desc writes above are performed before we start Tx DMA */ 572 isb(); 573 574 /* Apply send command using zeroth TXUQ */ 575 MVGBE_REG_WR(regs->tqc, (1 << TXUQ)); 576 577 /* 578 * wait for packet xmit completion 579 */ 580 cmd_sts = readl(&p_txdesc->cmd_sts); 581 while (cmd_sts & MVGBE_BUFFER_OWNED_BY_DMA) { 582 /* return fail if error is detected */ 583 if ((cmd_sts & (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME)) == 584 (MVGBE_ERROR_SUMMARY | MVGBE_TX_LAST_FRAME) && 585 cmd_sts & (MVGBE_UR_ERROR | MVGBE_RL_ERROR)) { 586 printf("Err..(%s) in xmit packet\n", __func__); 587 return -1; 588 } 589 cmd_sts = readl(&p_txdesc->cmd_sts); 590 }; 591 return 0; 592 } 593 594 static int mvgbe_recv(struct eth_device *dev) 595 { 596 struct mvgbe_device *dmvgbe = to_mvgbe(dev); 597 struct mvgbe_rxdesc *p_rxdesc_curr = dmvgbe->p_rxdesc_curr; 598 u32 cmd_sts; 599 u32 timeout = 0; 600 u32 rxdesc_curr_addr; 601 602 /* wait untill rx packet available or timeout */ 603 do { 604 if (timeout < MVGBE_PHY_SMI_TIMEOUT) 605 timeout++; 606 else { 607 debug("%s time out...\n", __func__); 608 return -1; 609 } 610 } while (readl(&p_rxdesc_curr->cmd_sts) & MVGBE_BUFFER_OWNED_BY_DMA); 611 612 if (p_rxdesc_curr->byte_cnt != 0) { 613 debug("%s: Received %d byte Packet @ 0x%x (cmd_sts= %08x)\n", 614 __func__, (u32) p_rxdesc_curr->byte_cnt, 615 (u32) p_rxdesc_curr->buf_ptr, 616 (u32) p_rxdesc_curr->cmd_sts); 617 } 618 619 /* 620 * In case received a packet without first/last bits on 621 * OR the error summary bit is on, 622 * the packets needs to be dropeed. 623 */ 624 cmd_sts = readl(&p_rxdesc_curr->cmd_sts); 625 626 if ((cmd_sts & 627 (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC)) 628 != (MVGBE_RX_FIRST_DESC | MVGBE_RX_LAST_DESC)) { 629 630 printf("Err..(%s) Dropping packet spread on" 631 " multiple descriptors\n", __func__); 632 633 } else if (cmd_sts & MVGBE_ERROR_SUMMARY) { 634 635 printf("Err..(%s) Dropping packet with errors\n", 636 __func__); 637 638 } else { 639 /* !!! call higher layer processing */ 640 debug("%s: Sending Received packet to" 641 " upper layer (net_process_received_packet)\n", 642 __func__); 643 644 /* let the upper layer handle the packet */ 645 net_process_received_packet((p_rxdesc_curr->buf_ptr + 646 RX_BUF_OFFSET), 647 (int)(p_rxdesc_curr->byte_cnt - 648 RX_BUF_OFFSET)); 649 } 650 /* 651 * free these descriptors and point next in the ring 652 */ 653 p_rxdesc_curr->cmd_sts = 654 MVGBE_BUFFER_OWNED_BY_DMA | MVGBE_RX_EN_INTERRUPT; 655 p_rxdesc_curr->buf_size = PKTSIZE_ALIGN; 656 p_rxdesc_curr->byte_cnt = 0; 657 658 rxdesc_curr_addr = (u32)&dmvgbe->p_rxdesc_curr; 659 writel((unsigned)p_rxdesc_curr->nxtdesc_p, rxdesc_curr_addr); 660 661 return 0; 662 } 663 664 #if defined(CONFIG_PHYLIB) 665 int mvgbe_phylib_init(struct eth_device *dev, int phyid) 666 { 667 struct mii_dev *bus; 668 struct phy_device *phydev; 669 int ret; 670 671 bus = mdio_alloc(); 672 if (!bus) { 673 printf("mdio_alloc failed\n"); 674 return -ENOMEM; 675 } 676 bus->read = mvgbe_phy_read; 677 bus->write = mvgbe_phy_write; 678 sprintf(bus->name, dev->name); 679 680 ret = mdio_register(bus); 681 if (ret) { 682 printf("mdio_register failed\n"); 683 free(bus); 684 return -ENOMEM; 685 } 686 687 /* Set phy address of the port */ 688 mvgbe_phy_write(bus, MV_PHY_ADR_REQUEST, 0, MV_PHY_ADR_REQUEST, phyid); 689 690 phydev = phy_connect(bus, phyid, dev, PHY_INTERFACE_MODE_RGMII); 691 if (!phydev) { 692 printf("phy_connect failed\n"); 693 return -ENODEV; 694 } 695 696 phy_config(phydev); 697 phy_startup(phydev); 698 699 return 0; 700 } 701 #endif 702 703 int mvgbe_initialize(bd_t *bis) 704 { 705 struct mvgbe_device *dmvgbe; 706 struct eth_device *dev; 707 int devnum; 708 u8 used_ports[MAX_MVGBE_DEVS] = CONFIG_MVGBE_PORTS; 709 710 for (devnum = 0; devnum < MAX_MVGBE_DEVS; devnum++) { 711 /*skip if port is configured not to use */ 712 if (used_ports[devnum] == 0) 713 continue; 714 715 dmvgbe = malloc(sizeof(struct mvgbe_device)); 716 717 if (!dmvgbe) 718 goto error1; 719 720 memset(dmvgbe, 0, sizeof(struct mvgbe_device)); 721 722 dmvgbe->p_rxdesc = 723 (struct mvgbe_rxdesc *)memalign(PKTALIGN, 724 MV_RXQ_DESC_ALIGNED_SIZE*RINGSZ + 1); 725 726 if (!dmvgbe->p_rxdesc) 727 goto error2; 728 729 dmvgbe->p_rxbuf = (u8 *) memalign(PKTALIGN, 730 RINGSZ*PKTSIZE_ALIGN + 1); 731 732 if (!dmvgbe->p_rxbuf) 733 goto error3; 734 735 dmvgbe->p_aligned_txbuf = memalign(8, PKTSIZE_ALIGN); 736 737 if (!dmvgbe->p_aligned_txbuf) 738 goto error4; 739 740 dmvgbe->p_txdesc = (struct mvgbe_txdesc *) memalign( 741 PKTALIGN, sizeof(struct mvgbe_txdesc) + 1); 742 743 if (!dmvgbe->p_txdesc) { 744 free(dmvgbe->p_aligned_txbuf); 745 error4: 746 free(dmvgbe->p_rxbuf); 747 error3: 748 free(dmvgbe->p_rxdesc); 749 error2: 750 free(dmvgbe); 751 error1: 752 printf("Err.. %s Failed to allocate memory\n", 753 __func__); 754 return -1; 755 } 756 757 dev = &dmvgbe->dev; 758 759 /* must be less than sizeof(dev->name) */ 760 sprintf(dev->name, "egiga%d", devnum); 761 762 switch (devnum) { 763 case 0: 764 dmvgbe->regs = (void *)MVGBE0_BASE; 765 break; 766 #if defined(MVGBE1_BASE) 767 case 1: 768 dmvgbe->regs = (void *)MVGBE1_BASE; 769 break; 770 #endif 771 default: /* this should never happen */ 772 printf("Err..(%s) Invalid device number %d\n", 773 __func__, devnum); 774 return -1; 775 } 776 777 dev->init = (void *)mvgbe_init; 778 dev->halt = (void *)mvgbe_halt; 779 dev->send = (void *)mvgbe_send; 780 dev->recv = (void *)mvgbe_recv; 781 dev->write_hwaddr = (void *)mvgbe_write_hwaddr; 782 783 eth_register(dev); 784 785 #if defined(CONFIG_PHYLIB) 786 mvgbe_phylib_init(dev, PHY_BASE_ADR + devnum); 787 #elif defined(CONFIG_MII) || defined(CONFIG_CMD_MII) 788 miiphy_register(dev->name, smi_reg_read, smi_reg_write); 789 /* Set phy address of the port */ 790 miiphy_write(dev->name, MV_PHY_ADR_REQUEST, 791 MV_PHY_ADR_REQUEST, PHY_BASE_ADR + devnum); 792 #endif 793 } 794 return 0; 795 } 796