board/freescale/ls1043aqds/eth.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright 2015 Freescale Semiconductor, Inc.
   4  * Copyright 2019 NXP
   5  */
   6
   7 #include <common.h>
   8 #include <log.h>
   9 #include <net.h>
  10 #include <asm/io.h>
  11 #include <netdev.h>
  12 #include <fdt_support.h>
  13 #include <fm_eth.h>
  14 #include <fsl_mdio.h>
  15 #include <fsl_dtsec.h>
  16 #include <linux/libfdt.h>
  17 #include <malloc.h>
  18 #include <asm/arch/fsl_serdes.h>
  19
  20 #include "../common/qixis.h"
  21 #include "../common/fman.h"
  22 #include "ls1043aqds_qixis.h"
  23
  24 #define EMI_NONE        0xFF
  25 #define EMI1_RGMII1     0
  26 #define EMI1_RGMII2     1
  27 #define EMI1_SLOT1      2
  28 #define EMI1_SLOT2      3
  29 #define EMI1_SLOT3      4
  30 #define EMI1_SLOT4      5
  31 #define EMI2            6
  32
  33 static int mdio_mux[NUM_FM_PORTS];
  34
  35 static const char * const mdio_names[] = {
  36         "LS1043AQDS_MDIO_RGMII1",
  37         "LS1043AQDS_MDIO_RGMII2",
  38         "LS1043AQDS_MDIO_SLOT1",
  39         "LS1043AQDS_MDIO_SLOT2",
  40         "LS1043AQDS_MDIO_SLOT3",
  41         "LS1043AQDS_MDIO_SLOT4",
  42         "NULL",
  43 };
  44
  45 /* Map SerDes1 4 lanes to default slot, will be initialized dynamically */
  46 static u8 lane_to_slot[] = {1, 2, 3, 4};
  47
  48 static const char *ls1043aqds_mdio_name_for_muxval(u8 muxval)
  49 {
  50         return mdio_names[muxval];
  51 }
  52
  53 struct mii_dev *mii_dev_for_muxval(u8 muxval)
  54 {
  55         struct mii_dev *bus;
  56         const char *name;
  57
  58         if (muxval > EMI2)
  59                 return NULL;
  60
  61         name = ls1043aqds_mdio_name_for_muxval(muxval);
  62
  63         if (!name) {
  64                 printf("No bus for muxval %x\n", muxval);
  65                 return NULL;
  66         }
  67
  68         bus = miiphy_get_dev_by_name(name);
  69
  70         if (!bus) {
  71                 printf("No bus by name %s\n", name);
  72                 return NULL;
  73         }
  74
  75         return bus;
  76 }
  77
  78 struct ls1043aqds_mdio {
  79         u8 muxval;
  80         struct mii_dev *realbus;
  81 };
  82
  83 static void ls1043aqds_mux_mdio(u8 muxval)
  84 {
  85         u8 brdcfg4;
  86
  87         if (muxval < 7) {
  88                 brdcfg4 = QIXIS_READ(brdcfg[4]);
  89                 brdcfg4 &= ~BRDCFG4_EMISEL_MASK;
  90                 brdcfg4 |= (muxval << BRDCFG4_EMISEL_SHIFT);
  91                 QIXIS_WRITE(brdcfg[4], brdcfg4);
  92         }
  93 }
  94
  95 static int ls1043aqds_mdio_read(struct mii_dev *bus, int addr, int devad,
  96                               int regnum)
  97 {
  98         struct ls1043aqds_mdio *priv = bus->priv;
  99
 100         ls1043aqds_mux_mdio(priv->muxval);
 101
 102         return priv->realbus->read(priv->realbus, addr, devad, regnum);
 103 }
 104
 105 static int ls1043aqds_mdio_write(struct mii_dev *bus, int addr, int devad,
 106                                int regnum, u16 value)
 107 {
 108         struct ls1043aqds_mdio *priv = bus->priv;
 109
 110         ls1043aqds_mux_mdio(priv->muxval);
 111
 112         return priv->realbus->write(priv->realbus, addr, devad,
 113                                     regnum, value);
 114 }
 115
 116 static int ls1043aqds_mdio_reset(struct mii_dev *bus)
 117 {
 118         struct ls1043aqds_mdio *priv = bus->priv;
 119
 120         return priv->realbus->reset(priv->realbus);
 121 }
 122
 123 static int ls1043aqds_mdio_init(char *realbusname, u8 muxval)
 124 {
 125         struct ls1043aqds_mdio *pmdio;
 126         struct mii_dev *bus = mdio_alloc();
 127
 128         if (!bus) {
 129                 printf("Failed to allocate ls1043aqds MDIO bus\n");
 130                 return -1;
 131         }
 132
 133         pmdio = malloc(sizeof(*pmdio));
 134         if (!pmdio) {
 135                 printf("Failed to allocate ls1043aqds private data\n");
 136                 free(bus);
 137                 return -1;
 138         }
 139
 140         bus->read = ls1043aqds_mdio_read;
 141         bus->write = ls1043aqds_mdio_write;
 142         bus->reset = ls1043aqds_mdio_reset;
 143         strcpy(bus->name, ls1043aqds_mdio_name_for_muxval(muxval));
 144
 145         pmdio->realbus = miiphy_get_dev_by_name(realbusname);
 146
 147         if (!pmdio->realbus) {
 148                 printf("No bus with name %s\n", realbusname);
 149                 free(bus);
 150                 free(pmdio);
 151                 return -1;
 152         }
 153
 154         pmdio->muxval = muxval;
 155         bus->priv = pmdio;
 156         return mdio_register(bus);
 157 }
 158
 159 void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
 160                               enum fm_port port, int offset)
 161 {
 162         struct fixed_link f_link;
 163
 164         if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_SGMII) {
 165                 if (port == FM1_DTSEC9) {
 166                         fdt_set_phy_handle(fdt, compat, addr,
 167                                            "sgmii-riser-s1-p1");
 168                 } else if (port == FM1_DTSEC2) {
 169                         fdt_set_phy_handle(fdt, compat, addr,
 170                                            "sgmii-riser-s2-p1");
 171                 } else if (port == FM1_DTSEC5) {
 172                         fdt_set_phy_handle(fdt, compat, addr,
 173                                            "sgmii-riser-s3-p1");
 174                 } else if (port == FM1_DTSEC6) {
 175                         fdt_set_phy_handle(fdt, compat, addr,
 176                                            "sgmii-riser-s4-p1");
 177                 }
 178         } else if (fm_info_get_enet_if(port) ==
 179                    PHY_INTERFACE_MODE_SGMII_2500) {
 180                 /* 2.5G SGMII interface */
 181                 f_link.phy_id = cpu_to_fdt32(port);
 182                 f_link.duplex = cpu_to_fdt32(1);
 183                 f_link.link_speed = cpu_to_fdt32(1000);
 184                 f_link.pause = 0;
 185                 f_link.asym_pause = 0;
 186                 /* no PHY for 2.5G SGMII */
 187                 fdt_delprop(fdt, offset, "phy-handle");
 188                 fdt_setprop(fdt, offset, "fixed-link", &f_link, sizeof(f_link));
 189                 fdt_setprop_string(fdt, offset, "phy-connection-type",
 190                                    "sgmii-2500");
 191         } else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_QSGMII) {
 192                 switch (mdio_mux[port]) {
 193                 case EMI1_SLOT1:
 194                         switch (port) {
 195                         case FM1_DTSEC1:
 196                                 fdt_set_phy_handle(fdt, compat, addr,
 197                                                    "qsgmii-s1-p1");
 198                                 break;
 199                         case FM1_DTSEC2:
 200                                 fdt_set_phy_handle(fdt, compat, addr,
 201                                                    "qsgmii-s1-p2");
 202                                 break;
 203                         case FM1_DTSEC5:
 204                                 fdt_set_phy_handle(fdt, compat, addr,
 205                                                    "qsgmii-s1-p3");
 206                                 break;
 207                         case FM1_DTSEC6:
 208                                 fdt_set_phy_handle(fdt, compat, addr,
 209                                                    "qsgmii-s1-p4");
 210                                 break;
 211                         default:
 212                                 break;
 213                         }
 214                         break;
 215                 case EMI1_SLOT2:
 216                         switch (port) {
 217                         case FM1_DTSEC1:
 218                                 fdt_set_phy_handle(fdt, compat, addr,
 219                                                    "qsgmii-s2-p1");
 220                                 break;
 221                         case FM1_DTSEC2:
 222                                 fdt_set_phy_handle(fdt, compat, addr,
 223                                                    "qsgmii-s2-p2");
 224                                 break;
 225                         case FM1_DTSEC5:
 226                                 fdt_set_phy_handle(fdt, compat, addr,
 227                                                    "qsgmii-s2-p3");
 228                                 break;
 229                         case FM1_DTSEC6:
 230                                 fdt_set_phy_handle(fdt, compat, addr,
 231                                                    "qsgmii-s2-p4");
 232                                 break;
 233                         default:
 234                                 break;
 235                         }
 236                         break;
 237                 default:
 238                         break;
 239                 }
 240                 fdt_delprop(fdt, offset, "phy-connection-type");
 241                 fdt_setprop_string(fdt, offset, "phy-connection-type",
 242                                    "qsgmii");
 243         } else if (fm_info_get_enet_if(port) == PHY_INTERFACE_MODE_XGMII &&
 244                    port == FM1_10GEC1) {
 245                 /* XFI interface */
 246                 f_link.phy_id = cpu_to_fdt32(port);
 247                 f_link.duplex = cpu_to_fdt32(1);
 248                 f_link.link_speed = cpu_to_fdt32(10000);
 249                 f_link.pause = 0;
 250                 f_link.asym_pause = 0;
 251                 /* no PHY for XFI */
 252                 fdt_delprop(fdt, offset, "phy-handle");
 253                 fdt_setprop(fdt, offset, "fixed-link", &f_link, sizeof(f_link));
 254                 fdt_setprop_string(fdt, offset, "phy-connection-type", "xgmii");
 255         }
 256 }
 257
 258 void fdt_fixup_board_enet(void *fdt)
 259 {
 260         int i;
 261         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 262         u32 srds_s1;
 263
 264         srds_s1 = in_be32(&gur->rcwsr[4]) &
 265                         FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
 266         srds_s1 >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
 267
 268         for (i = FM1_DTSEC1; i < NUM_FM_PORTS; i++) {
 269                 switch (fm_info_get_enet_if(i)) {
 270                 case PHY_INTERFACE_MODE_SGMII:
 271                 case PHY_INTERFACE_MODE_QSGMII:
 272                         switch (mdio_mux[i]) {
 273                         case EMI1_SLOT1:
 274                                 fdt_status_okay_by_alias(fdt, "emi1-slot1");
 275                                 break;
 276                         case EMI1_SLOT2:
 277                                 fdt_status_okay_by_alias(fdt, "emi1-slot2");
 278                                 break;
 279                         case EMI1_SLOT3:
 280                                 fdt_status_okay_by_alias(fdt, "emi1-slot3");
 281                                 break;
 282                         case EMI1_SLOT4:
 283                                 fdt_status_okay_by_alias(fdt, "emi1-slot4");
 284                                 break;
 285                         default:
 286                                 break;
 287                         }
 288                         break;
 289                 case PHY_INTERFACE_MODE_XGMII:
 290                         break;
 291                 default:
 292                         break;
 293                 }
 294         }
 295 }
 296
 297 int board_eth_init(struct bd_info *bis)
 298 {
 299 #ifdef CONFIG_FMAN_ENET
 300         int i, idx, lane, slot, interface;
 301         struct memac_mdio_info dtsec_mdio_info;
 302         struct memac_mdio_info tgec_mdio_info;
 303         struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 304         u32 srds_s1;
 305
 306         srds_s1 = in_be32(&gur->rcwsr[4]) &
 307                         FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_MASK;
 308         srds_s1 >>= FSL_CHASSIS2_RCWSR4_SRDS1_PRTCL_SHIFT;
 309
 310         /* Initialize the mdio_mux array so we can recognize empty elements */
 311         for (i = 0; i < NUM_FM_PORTS; i++)
 312                 mdio_mux[i] = EMI_NONE;
 313
 314         dtsec_mdio_info.regs =
 315                 (struct memac_mdio_controller *)CONFIG_SYS_FM1_DTSEC_MDIO_ADDR;
 316
 317         dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
 318
 319         /* Register the 1G MDIO bus */
 320         fm_memac_mdio_init(bis, &dtsec_mdio_info);
 321
 322         tgec_mdio_info.regs =
 323                 (struct memac_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR;
 324         tgec_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME;
 325
 326         /* Register the 10G MDIO bus */
 327         fm_memac_mdio_init(bis, &tgec_mdio_info);
 328
 329         /* Register the muxing front-ends to the MDIO buses */
 330         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII1);
 331         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_RGMII2);
 332         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT1);
 333         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT2);
 334         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT3);
 335         ls1043aqds_mdio_init(DEFAULT_FM_MDIO_NAME, EMI1_SLOT4);
 336         ls1043aqds_mdio_init(DEFAULT_FM_TGEC_MDIO_NAME, EMI2);
 337
 338         /* Set the two on-board RGMII PHY address */
 339         fm_info_set_phy_address(FM1_DTSEC3, RGMII_PHY1_ADDR);
 340         fm_info_set_phy_address(FM1_DTSEC4, RGMII_PHY2_ADDR);
 341
 342         switch (srds_s1) {
 343         case 0x2555:
 344                 /* 2.5G SGMII on lane A, MAC 9 */
 345                 fm_info_set_phy_address(FM1_DTSEC9, 9);
 346                 break;
 347         case 0x4555:
 348         case 0x4558:
 349                 /* QSGMII on lane A, MAC 1/2/5/6 */
 350                 fm_info_set_phy_address(FM1_DTSEC1,
 351                                         QSGMII_CARD_PORT1_PHY_ADDR_S1);
 352                 fm_info_set_phy_address(FM1_DTSEC2,
 353                                         QSGMII_CARD_PORT2_PHY_ADDR_S1);
 354                 fm_info_set_phy_address(FM1_DTSEC5,
 355                                         QSGMII_CARD_PORT3_PHY_ADDR_S1);
 356                 fm_info_set_phy_address(FM1_DTSEC6,
 357                                         QSGMII_CARD_PORT4_PHY_ADDR_S1);
 358                 break;
 359         case 0x1355:
 360                 /* SGMII on lane B, MAC 2*/
 361                 fm_info_set_phy_address(FM1_DTSEC2, SGMII_CARD_PORT1_PHY_ADDR);
 362                 break;
 363         case 0x2355:
 364                 /* 2.5G SGMII on lane A, MAC 9 */
 365                 fm_info_set_phy_address(FM1_DTSEC9, 9);
 366                 /* SGMII on lane B, MAC 2*/
 367                 fm_info_set_phy_address(FM1_DTSEC2, SGMII_CARD_PORT1_PHY_ADDR);
 368                 break;
 369         case 0x3335:
 370                 /* SGMII on lane C, MAC 5 */
 371                 fm_info_set_phy_address(FM1_DTSEC5, SGMII_CARD_PORT1_PHY_ADDR);
 372         case 0x3355:
 373         case 0x3358:
 374                 /* SGMII on lane B, MAC 2 */
 375                 fm_info_set_phy_address(FM1_DTSEC2, SGMII_CARD_PORT1_PHY_ADDR);
 376         case 0x3555:
 377         case 0x3558:
 378                 /* SGMII on lane A, MAC 9 */
 379                 fm_info_set_phy_address(FM1_DTSEC9, SGMII_CARD_PORT1_PHY_ADDR);
 380                 break;
 381         case 0x1455:
 382                 /* QSGMII on lane B, MAC 1/2/5/6 */
 383                 fm_info_set_phy_address(FM1_DTSEC1,
 384                                         QSGMII_CARD_PORT1_PHY_ADDR_S2);
 385                 fm_info_set_phy_address(FM1_DTSEC2,
 386                                         QSGMII_CARD_PORT2_PHY_ADDR_S2);
 387                 fm_info_set_phy_address(FM1_DTSEC5,
 388                                         QSGMII_CARD_PORT3_PHY_ADDR_S2);
 389                 fm_info_set_phy_address(FM1_DTSEC6,
 390                                         QSGMII_CARD_PORT4_PHY_ADDR_S2);
 391                 break;
 392         case 0x2455:
 393                 /* 2.5G SGMII on lane A, MAC 9 */
 394                 fm_info_set_phy_address(FM1_DTSEC9, 9);
 395                 /* QSGMII on lane B, MAC 1/2/5/6 */
 396                 fm_info_set_phy_address(FM1_DTSEC1,
 397                                         QSGMII_CARD_PORT1_PHY_ADDR_S2);
 398                 fm_info_set_phy_address(FM1_DTSEC2,
 399                                         QSGMII_CARD_PORT2_PHY_ADDR_S2);
 400                 fm_info_set_phy_address(FM1_DTSEC5,
 401                                         QSGMII_CARD_PORT3_PHY_ADDR_S2);
 402                 fm_info_set_phy_address(FM1_DTSEC6,
 403                                         QSGMII_CARD_PORT4_PHY_ADDR_S2);
 404                 break;
 405         case 0x2255:
 406                 /* 2.5G SGMII on lane A, MAC 9 */
 407                 fm_info_set_phy_address(FM1_DTSEC9, 9);
 408                 /* 2.5G SGMII on lane B, MAC 2 */
 409                 fm_info_set_phy_address(FM1_DTSEC2, 2);
 410                 break;
 411         case 0x3333:
 412                 /* SGMII on lane A/B/C/D, MAC 9/2/5/6 */
 413                 fm_info_set_phy_address(FM1_DTSEC9,
 414                                         SGMII_CARD_PORT1_PHY_ADDR);
 415                 fm_info_set_phy_address(FM1_DTSEC2,
 416                                         SGMII_CARD_PORT1_PHY_ADDR);
 417                 fm_info_set_phy_address(FM1_DTSEC5,
 418                                         SGMII_CARD_PORT1_PHY_ADDR);
 419                 fm_info_set_phy_address(FM1_DTSEC6,
 420                                         SGMII_CARD_PORT1_PHY_ADDR);
 421                 break;
 422         default:
 423                 printf("Invalid SerDes protocol 0x%x for LS1043AQDS\n",
 424                        srds_s1);
 425                 break;
 426         }
 427
 428         for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
 429                 idx = i - FM1_DTSEC1;
 430                 interface = fm_info_get_enet_if(i);
 431                 switch (interface) {
 432                 case PHY_INTERFACE_MODE_SGMII:
 433                 case PHY_INTERFACE_MODE_SGMII_2500:
 434                 case PHY_INTERFACE_MODE_QSGMII:
 435                         if (interface == PHY_INTERFACE_MODE_SGMII) {
 436                                 lane = serdes_get_first_lane(FSL_SRDS_1,
 437                                                 SGMII_FM1_DTSEC1 + idx);
 438                         } else if (interface == PHY_INTERFACE_MODE_SGMII_2500) {
 439                                 lane = serdes_get_first_lane(FSL_SRDS_1,
 440                                                 SGMII_2500_FM1_DTSEC1 + idx);
 441                         } else {
 442                                 lane = serdes_get_first_lane(FSL_SRDS_1,
 443                                                 QSGMII_FM1_A);
 444                         }
 445
 446                         if (lane < 0)
 447                                 break;
 448
 449                         slot = lane_to_slot[lane];
 450                         debug("FM1@DTSEC%u expects SGMII in slot %u\n",
 451                               idx + 1, slot);
 452                         if (QIXIS_READ(present2) & (1 << (slot - 1)))
 453                                 fm_disable_port(i);
 454
 455                         switch (slot) {
 456                         case 1:
 457                                 mdio_mux[i] = EMI1_SLOT1;
 458                                 fm_info_set_mdio(i, mii_dev_for_muxval(
 459                                                  mdio_mux[i]));
 460                                 break;
 461                         case 2:
 462                                 mdio_mux[i] = EMI1_SLOT2;
 463                                 fm_info_set_mdio(i, mii_dev_for_muxval(
 464                                                  mdio_mux[i]));
 465                                 break;
 466                         case 3:
 467                                 mdio_mux[i] = EMI1_SLOT3;
 468                                 fm_info_set_mdio(i, mii_dev_for_muxval(
 469                                                  mdio_mux[i]));
 470                                 break;
 471                         case 4:
 472                                 mdio_mux[i] = EMI1_SLOT4;
 473                                 fm_info_set_mdio(i, mii_dev_for_muxval(
 474                                                  mdio_mux[i]));
 475                                 break;
 476                         default:
 477                                 break;
 478                         }
 479                         break;
 480                 case PHY_INTERFACE_MODE_RGMII:
 481                 case PHY_INTERFACE_MODE_RGMII_TXID:
 482                 case PHY_INTERFACE_MODE_RGMII_RXID:
 483                 case PHY_INTERFACE_MODE_RGMII_ID:
 484                         if (i == FM1_DTSEC3)
 485                                 mdio_mux[i] = EMI1_RGMII1;
 486                         else if (i == FM1_DTSEC4)
 487                                 mdio_mux[i] = EMI1_RGMII2;
 488                         fm_info_set_mdio(i, mii_dev_for_muxval(mdio_mux[i]));
 489                         break;
 490                 default:
 491                         break;
 492                 }
 493         }
 494
 495         cpu_eth_init(bis);
 496 #endif /* CONFIG_FMAN_ENET */
 497
 498         return pci_eth_init(bis);
 499 }