1 /* 2 * Copyright (C) 2005 Freescale Semiconductor, Inc. 3 * 4 * Author: Shlomi Gridish 5 * 6 * Description: UCC GETH Driver -- PHY handling 7 * Driver for UEC on QE 8 * Based on 8260_io/fcc_enet.c 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 * 15 */ 16 17 #include "common.h" 18 #include "net.h" 19 #include "malloc.h" 20 #include "asm/errno.h" 21 #include "asm/immap_qe.h" 22 #include "asm/io.h" 23 #include "qe.h" 24 #include "uccf.h" 25 #include "uec.h" 26 #include "uec_phy.h" 27 #include "miiphy.h" 28 29 #define ugphy_printk(format, arg...) \ 30 printf(format "\n", ## arg) 31 32 #define ugphy_dbg(format, arg...) \ 33 ugphy_printk(format , ## arg) 34 #define ugphy_err(format, arg...) \ 35 ugphy_printk(format , ## arg) 36 #define ugphy_info(format, arg...) \ 37 ugphy_printk(format , ## arg) 38 #define ugphy_warn(format, arg...) \ 39 ugphy_printk(format , ## arg) 40 41 #ifdef UEC_VERBOSE_DEBUG 42 #define ugphy_vdbg ugphy_dbg 43 #else 44 #define ugphy_vdbg(ugeth, fmt, args...) do { } while (0) 45 #endif /* UEC_VERBOSE_DEBUG */ 46 47 static void config_genmii_advert (struct uec_mii_info *mii_info); 48 static void genmii_setup_forced (struct uec_mii_info *mii_info); 49 static void genmii_restart_aneg (struct uec_mii_info *mii_info); 50 static int gbit_config_aneg (struct uec_mii_info *mii_info); 51 static int genmii_config_aneg (struct uec_mii_info *mii_info); 52 static int genmii_update_link (struct uec_mii_info *mii_info); 53 static int genmii_read_status (struct uec_mii_info *mii_info); 54 u16 phy_read (struct uec_mii_info *mii_info, u16 regnum); 55 void phy_write (struct uec_mii_info *mii_info, u16 regnum, u16 val); 56 57 /* Write value to the PHY for this device to the register at regnum, */ 58 /* waiting until the write is done before it returns. All PHY */ 59 /* configuration has to be done through the TSEC1 MIIM regs */ 60 void uec_write_phy_reg (struct eth_device *dev, int mii_id, int regnum, int value) 61 { 62 uec_private_t *ugeth = (uec_private_t *) dev->priv; 63 uec_mii_t *ug_regs; 64 enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum; 65 u32 tmp_reg; 66 67 ug_regs = ugeth->uec_mii_regs; 68 69 /* Stop the MII management read cycle */ 70 out_be32 (&ug_regs->miimcom, 0); 71 /* Setting up the MII Mangement Address Register */ 72 tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg; 73 out_be32 (&ug_regs->miimadd, tmp_reg); 74 75 /* Setting up the MII Mangement Control Register with the value */ 76 out_be32 (&ug_regs->miimcon, (u32) value); 77 sync(); 78 79 /* Wait till MII management write is complete */ 80 while ((in_be32 (&ug_regs->miimind)) & MIIMIND_BUSY); 81 } 82 83 /* Reads from register regnum in the PHY for device dev, */ 84 /* returning the value. Clears miimcom first. All PHY */ 85 /* configuration has to be done through the TSEC1 MIIM regs */ 86 int uec_read_phy_reg (struct eth_device *dev, int mii_id, int regnum) 87 { 88 uec_private_t *ugeth = (uec_private_t *) dev->priv; 89 uec_mii_t *ug_regs; 90 enet_tbi_mii_reg_e mii_reg = (enet_tbi_mii_reg_e) regnum; 91 u32 tmp_reg; 92 u16 value; 93 94 ug_regs = ugeth->uec_mii_regs; 95 96 /* Setting up the MII Mangement Address Register */ 97 tmp_reg = ((u32) mii_id << MIIMADD_PHY_ADDRESS_SHIFT) | mii_reg; 98 out_be32 (&ug_regs->miimadd, tmp_reg); 99 100 /* clear MII management command cycle */ 101 out_be32 (&ug_regs->miimcom, 0); 102 sync(); 103 104 /* Perform an MII management read cycle */ 105 out_be32 (&ug_regs->miimcom, MIIMCOM_READ_CYCLE); 106 107 /* Wait till MII management write is complete */ 108 while ((in_be32 (&ug_regs->miimind)) & 109 (MIIMIND_NOT_VALID | MIIMIND_BUSY)); 110 111 /* Read MII management status */ 112 value = (u16) in_be32 (&ug_regs->miimstat); 113 if (value == 0xffff) 114 ugphy_vdbg 115 ("read wrong value : mii_id %d,mii_reg %d, base %08x", 116 mii_id, mii_reg, (u32) & (ug_regs->miimcfg)); 117 118 return (value); 119 } 120 121 void mii_clear_phy_interrupt (struct uec_mii_info *mii_info) 122 { 123 if (mii_info->phyinfo->ack_interrupt) 124 mii_info->phyinfo->ack_interrupt (mii_info); 125 } 126 127 void mii_configure_phy_interrupt (struct uec_mii_info *mii_info, 128 u32 interrupts) 129 { 130 mii_info->interrupts = interrupts; 131 if (mii_info->phyinfo->config_intr) 132 mii_info->phyinfo->config_intr (mii_info); 133 } 134 135 /* Writes MII_ADVERTISE with the appropriate values, after 136 * sanitizing advertise to make sure only supported features 137 * are advertised 138 */ 139 static void config_genmii_advert (struct uec_mii_info *mii_info) 140 { 141 u32 advertise; 142 u16 adv; 143 144 /* Only allow advertising what this PHY supports */ 145 mii_info->advertising &= mii_info->phyinfo->features; 146 advertise = mii_info->advertising; 147 148 /* Setup standard advertisement */ 149 adv = phy_read (mii_info, PHY_ANAR); 150 adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4); 151 if (advertise & ADVERTISED_10baseT_Half) 152 adv |= ADVERTISE_10HALF; 153 if (advertise & ADVERTISED_10baseT_Full) 154 adv |= ADVERTISE_10FULL; 155 if (advertise & ADVERTISED_100baseT_Half) 156 adv |= ADVERTISE_100HALF; 157 if (advertise & ADVERTISED_100baseT_Full) 158 adv |= ADVERTISE_100FULL; 159 phy_write (mii_info, PHY_ANAR, adv); 160 } 161 162 static void genmii_setup_forced (struct uec_mii_info *mii_info) 163 { 164 u16 ctrl; 165 u32 features = mii_info->phyinfo->features; 166 167 ctrl = phy_read (mii_info, PHY_BMCR); 168 169 ctrl &= ~(PHY_BMCR_DPLX | PHY_BMCR_100_MBPS | 170 PHY_BMCR_1000_MBPS | PHY_BMCR_AUTON); 171 ctrl |= PHY_BMCR_RESET; 172 173 switch (mii_info->speed) { 174 case SPEED_1000: 175 if (features & (SUPPORTED_1000baseT_Half 176 | SUPPORTED_1000baseT_Full)) { 177 ctrl |= PHY_BMCR_1000_MBPS; 178 break; 179 } 180 mii_info->speed = SPEED_100; 181 case SPEED_100: 182 if (features & (SUPPORTED_100baseT_Half 183 | SUPPORTED_100baseT_Full)) { 184 ctrl |= PHY_BMCR_100_MBPS; 185 break; 186 } 187 mii_info->speed = SPEED_10; 188 case SPEED_10: 189 if (features & (SUPPORTED_10baseT_Half 190 | SUPPORTED_10baseT_Full)) 191 break; 192 default: /* Unsupported speed! */ 193 ugphy_err ("%s: Bad speed!", mii_info->dev->name); 194 break; 195 } 196 197 phy_write (mii_info, PHY_BMCR, ctrl); 198 } 199 200 /* Enable and Restart Autonegotiation */ 201 static void genmii_restart_aneg (struct uec_mii_info *mii_info) 202 { 203 u16 ctl; 204 205 ctl = phy_read (mii_info, PHY_BMCR); 206 ctl |= (PHY_BMCR_AUTON | PHY_BMCR_RST_NEG); 207 phy_write (mii_info, PHY_BMCR, ctl); 208 } 209 210 static int gbit_config_aneg (struct uec_mii_info *mii_info) 211 { 212 u16 adv; 213 u32 advertise; 214 215 if (mii_info->autoneg) { 216 /* Configure the ADVERTISE register */ 217 config_genmii_advert (mii_info); 218 advertise = mii_info->advertising; 219 220 adv = phy_read (mii_info, MII_1000BASETCONTROL); 221 adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP | 222 MII_1000BASETCONTROL_HALFDUPLEXCAP); 223 if (advertise & SUPPORTED_1000baseT_Half) 224 adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP; 225 if (advertise & SUPPORTED_1000baseT_Full) 226 adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP; 227 phy_write (mii_info, MII_1000BASETCONTROL, adv); 228 229 /* Start/Restart aneg */ 230 genmii_restart_aneg (mii_info); 231 } else 232 genmii_setup_forced (mii_info); 233 234 return 0; 235 } 236 237 static int marvell_config_aneg (struct uec_mii_info *mii_info) 238 { 239 /* The Marvell PHY has an errata which requires 240 * that certain registers get written in order 241 * to restart autonegotiation */ 242 phy_write (mii_info, PHY_BMCR, PHY_BMCR_RESET); 243 244 phy_write (mii_info, 0x1d, 0x1f); 245 phy_write (mii_info, 0x1e, 0x200c); 246 phy_write (mii_info, 0x1d, 0x5); 247 phy_write (mii_info, 0x1e, 0); 248 phy_write (mii_info, 0x1e, 0x100); 249 250 gbit_config_aneg (mii_info); 251 252 return 0; 253 } 254 255 static int genmii_config_aneg (struct uec_mii_info *mii_info) 256 { 257 if (mii_info->autoneg) { 258 config_genmii_advert (mii_info); 259 genmii_restart_aneg (mii_info); 260 } else 261 genmii_setup_forced (mii_info); 262 263 return 0; 264 } 265 266 static int genmii_update_link (struct uec_mii_info *mii_info) 267 { 268 u16 status; 269 270 /* Status is read once to clear old link state */ 271 phy_read (mii_info, PHY_BMSR); 272 273 /* 274 * Wait if the link is up, and autonegotiation is in progress 275 * (ie - we're capable and it's not done) 276 */ 277 status = phy_read(mii_info, PHY_BMSR); 278 if ((status & PHY_BMSR_LS) && (status & PHY_BMSR_AUTN_ABLE) 279 && !(status & PHY_BMSR_AUTN_COMP)) { 280 int i = 0; 281 282 while (!(status & PHY_BMSR_AUTN_COMP)) { 283 /* 284 * Timeout reached ? 285 */ 286 if (i > UGETH_AN_TIMEOUT) { 287 mii_info->link = 0; 288 return 0; 289 } 290 291 i++; 292 udelay(1000); /* 1 ms */ 293 status = phy_read(mii_info, PHY_BMSR); 294 } 295 mii_info->link = 1; 296 udelay(500000); /* another 500 ms (results in faster booting) */ 297 } else { 298 if (status & PHY_BMSR_LS) 299 mii_info->link = 1; 300 else 301 mii_info->link = 0; 302 } 303 304 return 0; 305 } 306 307 static int genmii_read_status (struct uec_mii_info *mii_info) 308 { 309 u16 status; 310 int err; 311 312 /* Update the link, but return if there 313 * was an error */ 314 err = genmii_update_link (mii_info); 315 if (err) 316 return err; 317 318 if (mii_info->autoneg) { 319 status = phy_read(mii_info, MII_1000BASETSTATUS); 320 321 if (status & (LPA_1000FULL | LPA_1000HALF)) { 322 mii_info->speed = SPEED_1000; 323 if (status & LPA_1000FULL) 324 mii_info->duplex = DUPLEX_FULL; 325 else 326 mii_info->duplex = DUPLEX_HALF; 327 } else { 328 status = phy_read(mii_info, PHY_ANLPAR); 329 330 if (status & (PHY_ANLPAR_10FD | PHY_ANLPAR_TXFD)) 331 mii_info->duplex = DUPLEX_FULL; 332 else 333 mii_info->duplex = DUPLEX_HALF; 334 if (status & (PHY_ANLPAR_TXFD | PHY_ANLPAR_TX)) 335 mii_info->speed = SPEED_100; 336 else 337 mii_info->speed = SPEED_10; 338 } 339 mii_info->pause = 0; 340 } 341 /* On non-aneg, we assume what we put in BMCR is the speed, 342 * though magic-aneg shouldn't prevent this case from occurring 343 */ 344 345 return 0; 346 } 347 348 static int bcm_init(struct uec_mii_info *mii_info) 349 { 350 struct eth_device *edev = mii_info->dev; 351 uec_private_t *uec = edev->priv; 352 353 gbit_config_aneg(mii_info); 354 355 if (uec->uec_info->enet_interface == ENET_1000_RGMII_RXID) { 356 u16 val; 357 int cnt = 50; 358 359 /* Wait for aneg to complete. */ 360 do 361 val = phy_read(mii_info, PHY_BMSR); 362 while (--cnt && !(val & PHY_BMSR_AUTN_COMP)); 363 364 /* Set RDX clk delay. */ 365 phy_write(mii_info, 0x18, 0x7 | (7 << 12)); 366 367 val = phy_read(mii_info, 0x18); 368 /* Set RDX-RXC skew. */ 369 val |= (1 << 8); 370 val |= (7 | (7 << 12)); 371 /* Write bits 14:0. */ 372 val |= (1 << 15); 373 phy_write(mii_info, 0x18, val); 374 } 375 376 return 0; 377 } 378 379 static int marvell_read_status (struct uec_mii_info *mii_info) 380 { 381 u16 status; 382 int err; 383 384 /* Update the link, but return if there 385 * was an error */ 386 err = genmii_update_link (mii_info); 387 if (err) 388 return err; 389 390 /* If the link is up, read the speed and duplex */ 391 /* If we aren't autonegotiating, assume speeds 392 * are as set */ 393 if (mii_info->autoneg && mii_info->link) { 394 int speed; 395 396 status = phy_read (mii_info, MII_M1011_PHY_SPEC_STATUS); 397 398 /* Get the duplexity */ 399 if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX) 400 mii_info->duplex = DUPLEX_FULL; 401 else 402 mii_info->duplex = DUPLEX_HALF; 403 404 /* Get the speed */ 405 speed = status & MII_M1011_PHY_SPEC_STATUS_SPD_MASK; 406 switch (speed) { 407 case MII_M1011_PHY_SPEC_STATUS_1000: 408 mii_info->speed = SPEED_1000; 409 break; 410 case MII_M1011_PHY_SPEC_STATUS_100: 411 mii_info->speed = SPEED_100; 412 break; 413 default: 414 mii_info->speed = SPEED_10; 415 break; 416 } 417 mii_info->pause = 0; 418 } 419 420 return 0; 421 } 422 423 static int marvell_ack_interrupt (struct uec_mii_info *mii_info) 424 { 425 /* Clear the interrupts by reading the reg */ 426 phy_read (mii_info, MII_M1011_IEVENT); 427 428 return 0; 429 } 430 431 static int marvell_config_intr (struct uec_mii_info *mii_info) 432 { 433 if (mii_info->interrupts == MII_INTERRUPT_ENABLED) 434 phy_write (mii_info, MII_M1011_IMASK, MII_M1011_IMASK_INIT); 435 else 436 phy_write (mii_info, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR); 437 438 return 0; 439 } 440 441 static int dm9161_init (struct uec_mii_info *mii_info) 442 { 443 /* Reset the PHY */ 444 phy_write (mii_info, PHY_BMCR, phy_read (mii_info, PHY_BMCR) | 445 PHY_BMCR_RESET); 446 /* PHY and MAC connect */ 447 phy_write (mii_info, PHY_BMCR, phy_read (mii_info, PHY_BMCR) & 448 ~PHY_BMCR_ISO); 449 450 phy_write (mii_info, MII_DM9161_SCR, MII_DM9161_SCR_INIT); 451 452 config_genmii_advert (mii_info); 453 /* Start/restart aneg */ 454 genmii_config_aneg (mii_info); 455 456 return 0; 457 } 458 459 static int dm9161_config_aneg (struct uec_mii_info *mii_info) 460 { 461 return 0; 462 } 463 464 static int dm9161_read_status (struct uec_mii_info *mii_info) 465 { 466 u16 status; 467 int err; 468 469 /* Update the link, but return if there was an error */ 470 err = genmii_update_link (mii_info); 471 if (err) 472 return err; 473 /* If the link is up, read the speed and duplex 474 If we aren't autonegotiating assume speeds are as set */ 475 if (mii_info->autoneg && mii_info->link) { 476 status = phy_read (mii_info, MII_DM9161_SCSR); 477 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_100H)) 478 mii_info->speed = SPEED_100; 479 else 480 mii_info->speed = SPEED_10; 481 482 if (status & (MII_DM9161_SCSR_100F | MII_DM9161_SCSR_10F)) 483 mii_info->duplex = DUPLEX_FULL; 484 else 485 mii_info->duplex = DUPLEX_HALF; 486 } 487 488 return 0; 489 } 490 491 static int dm9161_ack_interrupt (struct uec_mii_info *mii_info) 492 { 493 /* Clear the interrupt by reading the reg */ 494 phy_read (mii_info, MII_DM9161_INTR); 495 496 return 0; 497 } 498 499 static int dm9161_config_intr (struct uec_mii_info *mii_info) 500 { 501 if (mii_info->interrupts == MII_INTERRUPT_ENABLED) 502 phy_write (mii_info, MII_DM9161_INTR, MII_DM9161_INTR_INIT); 503 else 504 phy_write (mii_info, MII_DM9161_INTR, MII_DM9161_INTR_STOP); 505 506 return 0; 507 } 508 509 static void dm9161_close (struct uec_mii_info *mii_info) 510 { 511 } 512 513 static struct phy_info phy_info_dm9161 = { 514 .phy_id = 0x0181b880, 515 .phy_id_mask = 0x0ffffff0, 516 .name = "Davicom DM9161E", 517 .init = dm9161_init, 518 .config_aneg = dm9161_config_aneg, 519 .read_status = dm9161_read_status, 520 .close = dm9161_close, 521 }; 522 523 static struct phy_info phy_info_dm9161a = { 524 .phy_id = 0x0181b8a0, 525 .phy_id_mask = 0x0ffffff0, 526 .name = "Davicom DM9161A", 527 .features = MII_BASIC_FEATURES, 528 .init = dm9161_init, 529 .config_aneg = dm9161_config_aneg, 530 .read_status = dm9161_read_status, 531 .ack_interrupt = dm9161_ack_interrupt, 532 .config_intr = dm9161_config_intr, 533 .close = dm9161_close, 534 }; 535 536 static struct phy_info phy_info_marvell = { 537 .phy_id = 0x01410c00, 538 .phy_id_mask = 0xffffff00, 539 .name = "Marvell 88E11x1", 540 .features = MII_GBIT_FEATURES, 541 .config_aneg = &marvell_config_aneg, 542 .read_status = &marvell_read_status, 543 .ack_interrupt = &marvell_ack_interrupt, 544 .config_intr = &marvell_config_intr, 545 }; 546 547 static struct phy_info phy_info_bcm5481 = { 548 .phy_id = 0x0143bca0, 549 .phy_id_mask = 0xffffff0, 550 .name = "Broadcom 5481", 551 .features = MII_GBIT_FEATURES, 552 .read_status = genmii_read_status, 553 .init = bcm_init, 554 }; 555 556 static struct phy_info phy_info_genmii = { 557 .phy_id = 0x00000000, 558 .phy_id_mask = 0x00000000, 559 .name = "Generic MII", 560 .features = MII_BASIC_FEATURES, 561 .config_aneg = genmii_config_aneg, 562 .read_status = genmii_read_status, 563 }; 564 565 static struct phy_info *phy_info[] = { 566 &phy_info_dm9161, 567 &phy_info_dm9161a, 568 &phy_info_marvell, 569 &phy_info_bcm5481, 570 &phy_info_genmii, 571 NULL 572 }; 573 574 u16 phy_read (struct uec_mii_info *mii_info, u16 regnum) 575 { 576 return mii_info->mdio_read (mii_info->dev, mii_info->mii_id, regnum); 577 } 578 579 void phy_write (struct uec_mii_info *mii_info, u16 regnum, u16 val) 580 { 581 mii_info->mdio_write (mii_info->dev, mii_info->mii_id, regnum, val); 582 } 583 584 /* Use the PHY ID registers to determine what type of PHY is attached 585 * to device dev. return a struct phy_info structure describing that PHY 586 */ 587 struct phy_info *uec_get_phy_info (struct uec_mii_info *mii_info) 588 { 589 u16 phy_reg; 590 u32 phy_ID; 591 int i; 592 struct phy_info *theInfo = NULL; 593 594 /* Grab the bits from PHYIR1, and put them in the upper half */ 595 phy_reg = phy_read (mii_info, PHY_PHYIDR1); 596 phy_ID = (phy_reg & 0xffff) << 16; 597 598 /* Grab the bits from PHYIR2, and put them in the lower half */ 599 phy_reg = phy_read (mii_info, PHY_PHYIDR2); 600 phy_ID |= (phy_reg & 0xffff); 601 602 /* loop through all the known PHY types, and find one that */ 603 /* matches the ID we read from the PHY. */ 604 for (i = 0; phy_info[i]; i++) 605 if (phy_info[i]->phy_id == 606 (phy_ID & phy_info[i]->phy_id_mask)) { 607 theInfo = phy_info[i]; 608 break; 609 } 610 611 /* This shouldn't happen, as we have generic PHY support */ 612 if (theInfo == NULL) { 613 ugphy_info ("UEC: PHY id %x is not supported!", phy_ID); 614 return NULL; 615 } else { 616 ugphy_info ("UEC: PHY is %s (%x)", theInfo->name, phy_ID); 617 } 618 619 return theInfo; 620 } 621 622 void marvell_phy_interface_mode (struct eth_device *dev, 623 enet_interface_e mode) 624 { 625 uec_private_t *uec = (uec_private_t *) dev->priv; 626 struct uec_mii_info *mii_info; 627 u16 status; 628 629 if (!uec->mii_info) { 630 printf ("%s: the PHY not initialized\n", __FUNCTION__); 631 return; 632 } 633 mii_info = uec->mii_info; 634 635 if (mode == ENET_100_RGMII) { 636 phy_write (mii_info, 0x00, 0x9140); 637 phy_write (mii_info, 0x1d, 0x001f); 638 phy_write (mii_info, 0x1e, 0x200c); 639 phy_write (mii_info, 0x1d, 0x0005); 640 phy_write (mii_info, 0x1e, 0x0000); 641 phy_write (mii_info, 0x1e, 0x0100); 642 phy_write (mii_info, 0x09, 0x0e00); 643 phy_write (mii_info, 0x04, 0x01e1); 644 phy_write (mii_info, 0x00, 0x9140); 645 phy_write (mii_info, 0x00, 0x1000); 646 udelay (100000); 647 phy_write (mii_info, 0x00, 0x2900); 648 phy_write (mii_info, 0x14, 0x0cd2); 649 phy_write (mii_info, 0x00, 0xa100); 650 phy_write (mii_info, 0x09, 0x0000); 651 phy_write (mii_info, 0x1b, 0x800b); 652 phy_write (mii_info, 0x04, 0x05e1); 653 phy_write (mii_info, 0x00, 0xa100); 654 phy_write (mii_info, 0x00, 0x2100); 655 udelay (1000000); 656 } else if (mode == ENET_10_RGMII) { 657 phy_write (mii_info, 0x14, 0x8e40); 658 phy_write (mii_info, 0x1b, 0x800b); 659 phy_write (mii_info, 0x14, 0x0c82); 660 phy_write (mii_info, 0x00, 0x8100); 661 udelay (1000000); 662 } 663 664 /* handle 88e1111 rev.B2 erratum 5.6 */ 665 if (mii_info->autoneg) { 666 status = phy_read (mii_info, PHY_BMCR); 667 phy_write (mii_info, PHY_BMCR, status | PHY_BMCR_AUTON); 668 } 669 /* now the B2 will correctly report autoneg completion status */ 670 } 671 672 void change_phy_interface_mode (struct eth_device *dev, enet_interface_e mode) 673 { 674 #ifdef CONFIG_PHY_MODE_NEED_CHANGE 675 marvell_phy_interface_mode (dev, mode); 676 #endif 677 } 678