drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * This is the driver for the GMAC on-chip Ethernet controller for ST SoCs.
   4  * DWC Ether MAC version 4.00  has been used for developing this code.
   5  *
   6  * This only implements the mac core functions for this chip.
   7  *
   8  * Copyright (C) 2015  STMicroelectronics Ltd
   9  *
  10  * Author: Alexandre Torgue <alexandre.torgue@st.com>
  11  */
  12
  13 #include <linux/crc32.h>
  14 #include <linux/slab.h>
  15 #include <linux/ethtool.h>
  16 #include <linux/io.h>
  17 #include <net/dsa.h>
  18 #include "stmmac.h"
  19 #include "stmmac_pcs.h"
  20 #include "dwmac4.h"
  21 #include "dwmac5.h"
  22
  23 static void dwmac4_core_init(struct mac_device_info *hw,
  24                              struct net_device *dev)
  25 {
  26         void __iomem *ioaddr = hw->pcsr;
  27         u32 value = readl(ioaddr + GMAC_CONFIG);
  28
  29         value |= GMAC_CORE_INIT;
  30
  31         if (hw->ps) {
  32                 value |= GMAC_CONFIG_TE;
  33
  34                 value &= hw->link.speed_mask;
  35                 switch (hw->ps) {
  36                 case SPEED_1000:
  37                         value |= hw->link.speed1000;
  38                         break;
  39                 case SPEED_100:
  40                         value |= hw->link.speed100;
  41                         break;
  42                 case SPEED_10:
  43                         value |= hw->link.speed10;
  44                         break;
  45                 }
  46         }
  47
  48         writel(value, ioaddr + GMAC_CONFIG);
  49
  50         /* Enable GMAC interrupts */
  51         value = GMAC_INT_DEFAULT_ENABLE;
  52
  53         if (hw->pcs)
  54                 value |= GMAC_PCS_IRQ_DEFAULT;
  55
  56         /* Enable FPE interrupt */
  57         if ((GMAC_HW_FEAT_FPESEL & readl(ioaddr + GMAC_HW_FEATURE3)) >> 26)
  58                 value |= GMAC_INT_FPE_EN;
  59
  60         writel(value, ioaddr + GMAC_INT_EN);
  61 }
  62
  63 static void dwmac4_rx_queue_enable(struct mac_device_info *hw,
  64                                    u8 mode, u32 queue)
  65 {
  66         void __iomem *ioaddr = hw->pcsr;
  67         u32 value = readl(ioaddr + GMAC_RXQ_CTRL0);
  68
  69         value &= GMAC_RX_QUEUE_CLEAR(queue);
  70         if (mode == MTL_QUEUE_AVB)
  71                 value |= GMAC_RX_AV_QUEUE_ENABLE(queue);
  72         else if (mode == MTL_QUEUE_DCB)
  73                 value |= GMAC_RX_DCB_QUEUE_ENABLE(queue);
  74
  75         writel(value, ioaddr + GMAC_RXQ_CTRL0);
  76 }
  77
  78 static void dwmac4_rx_queue_priority(struct mac_device_info *hw,
  79                                      u32 prio, u32 queue)
  80 {
  81         void __iomem *ioaddr = hw->pcsr;
  82         u32 base_register;
  83         u32 value;
  84
  85         base_register = (queue < 4) ? GMAC_RXQ_CTRL2 : GMAC_RXQ_CTRL3;
  86         if (queue >= 4)
  87                 queue -= 4;
  88
  89         value = readl(ioaddr + base_register);
  90
  91         value &= ~GMAC_RXQCTRL_PSRQX_MASK(queue);
  92         value |= (prio << GMAC_RXQCTRL_PSRQX_SHIFT(queue)) &
  93                                                 GMAC_RXQCTRL_PSRQX_MASK(queue);
  94         writel(value, ioaddr + base_register);
  95 }
  96
  97 static void dwmac4_tx_queue_priority(struct mac_device_info *hw,
  98                                      u32 prio, u32 queue)
  99 {
 100         void __iomem *ioaddr = hw->pcsr;
 101         u32 base_register;
 102         u32 value;
 103
 104         base_register = (queue < 4) ? GMAC_TXQ_PRTY_MAP0 : GMAC_TXQ_PRTY_MAP1;
 105         if (queue >= 4)
 106                 queue -= 4;
 107
 108         value = readl(ioaddr + base_register);
 109
 110         value &= ~GMAC_TXQCTRL_PSTQX_MASK(queue);
 111         value |= (prio << GMAC_TXQCTRL_PSTQX_SHIFT(queue)) &
 112                                                 GMAC_TXQCTRL_PSTQX_MASK(queue);
 113
 114         writel(value, ioaddr + base_register);
 115 }
 116
 117 static void dwmac4_rx_queue_routing(struct mac_device_info *hw,
 118                                     u8 packet, u32 queue)
 119 {
 120         void __iomem *ioaddr = hw->pcsr;
 121         u32 value;
 122
 123         static const struct stmmac_rx_routing route_possibilities[] = {
 124                 { GMAC_RXQCTRL_AVCPQ_MASK, GMAC_RXQCTRL_AVCPQ_SHIFT },
 125                 { GMAC_RXQCTRL_PTPQ_MASK, GMAC_RXQCTRL_PTPQ_SHIFT },
 126                 { GMAC_RXQCTRL_DCBCPQ_MASK, GMAC_RXQCTRL_DCBCPQ_SHIFT },
 127                 { GMAC_RXQCTRL_UPQ_MASK, GMAC_RXQCTRL_UPQ_SHIFT },
 128                 { GMAC_RXQCTRL_MCBCQ_MASK, GMAC_RXQCTRL_MCBCQ_SHIFT },
 129         };
 130
 131         value = readl(ioaddr + GMAC_RXQ_CTRL1);
 132
 133         /* routing configuration */
 134         value &= ~route_possibilities[packet - 1].reg_mask;
 135         value |= (queue << route_possibilities[packet-1].reg_shift) &
 136                  route_possibilities[packet - 1].reg_mask;
 137
 138         /* some packets require extra ops */
 139         if (packet == PACKET_AVCPQ) {
 140                 value &= ~GMAC_RXQCTRL_TACPQE;
 141                 value |= 0x1 << GMAC_RXQCTRL_TACPQE_SHIFT;
 142         } else if (packet == PACKET_MCBCQ) {
 143                 value &= ~GMAC_RXQCTRL_MCBCQEN;
 144                 value |= 0x1 << GMAC_RXQCTRL_MCBCQEN_SHIFT;
 145         }
 146
 147         writel(value, ioaddr + GMAC_RXQ_CTRL1);
 148 }
 149
 150 static void dwmac4_prog_mtl_rx_algorithms(struct mac_device_info *hw,
 151                                           u32 rx_alg)
 152 {
 153         void __iomem *ioaddr = hw->pcsr;
 154         u32 value = readl(ioaddr + MTL_OPERATION_MODE);
 155
 156         value &= ~MTL_OPERATION_RAA;
 157         switch (rx_alg) {
 158         case MTL_RX_ALGORITHM_SP:
 159                 value |= MTL_OPERATION_RAA_SP;
 160                 break;
 161         case MTL_RX_ALGORITHM_WSP:
 162                 value |= MTL_OPERATION_RAA_WSP;
 163                 break;
 164         default:
 165                 break;
 166         }
 167
 168         writel(value, ioaddr + MTL_OPERATION_MODE);
 169 }
 170
 171 static void dwmac4_prog_mtl_tx_algorithms(struct mac_device_info *hw,
 172                                           u32 tx_alg)
 173 {
 174         void __iomem *ioaddr = hw->pcsr;
 175         u32 value = readl(ioaddr + MTL_OPERATION_MODE);
 176
 177         value &= ~MTL_OPERATION_SCHALG_MASK;
 178         switch (tx_alg) {
 179         case MTL_TX_ALGORITHM_WRR:
 180                 value |= MTL_OPERATION_SCHALG_WRR;
 181                 break;
 182         case MTL_TX_ALGORITHM_WFQ:
 183                 value |= MTL_OPERATION_SCHALG_WFQ;
 184                 break;
 185         case MTL_TX_ALGORITHM_DWRR:
 186                 value |= MTL_OPERATION_SCHALG_DWRR;
 187                 break;
 188         case MTL_TX_ALGORITHM_SP:
 189                 value |= MTL_OPERATION_SCHALG_SP;
 190                 break;
 191         default:
 192                 break;
 193         }
 194
 195         writel(value, ioaddr + MTL_OPERATION_MODE);
 196 }
 197
 198 static void dwmac4_set_mtl_tx_queue_weight(struct mac_device_info *hw,
 199                                            u32 weight, u32 queue)
 200 {
 201         void __iomem *ioaddr = hw->pcsr;
 202         u32 value = readl(ioaddr + MTL_TXQX_WEIGHT_BASE_ADDR(queue));
 203
 204         value &= ~MTL_TXQ_WEIGHT_ISCQW_MASK;
 205         value |= weight & MTL_TXQ_WEIGHT_ISCQW_MASK;
 206         writel(value, ioaddr + MTL_TXQX_WEIGHT_BASE_ADDR(queue));
 207 }
 208
 209 static void dwmac4_map_mtl_dma(struct mac_device_info *hw, u32 queue, u32 chan)
 210 {
 211         void __iomem *ioaddr = hw->pcsr;
 212         u32 value;
 213
 214         if (queue < 4)
 215                 value = readl(ioaddr + MTL_RXQ_DMA_MAP0);
 216         else
 217                 value = readl(ioaddr + MTL_RXQ_DMA_MAP1);
 218
 219         if (queue == 0 || queue == 4) {
 220                 value &= ~MTL_RXQ_DMA_Q04MDMACH_MASK;
 221                 value |= MTL_RXQ_DMA_Q04MDMACH(chan);
 222         } else {
 223                 value &= ~MTL_RXQ_DMA_QXMDMACH_MASK(queue);
 224                 value |= MTL_RXQ_DMA_QXMDMACH(chan, queue);
 225         }
 226
 227         if (queue < 4)
 228                 writel(value, ioaddr + MTL_RXQ_DMA_MAP0);
 229         else
 230                 writel(value, ioaddr + MTL_RXQ_DMA_MAP1);
 231 }
 232
 233 static void dwmac4_config_cbs(struct mac_device_info *hw,
 234                               u32 send_slope, u32 idle_slope,
 235                               u32 high_credit, u32 low_credit, u32 queue)
 236 {
 237         void __iomem *ioaddr = hw->pcsr;
 238         u32 value;
 239
 240         pr_debug("Queue %d configured as AVB. Parameters:\n", queue);
 241         pr_debug("\tsend_slope: 0x%08x\n", send_slope);
 242         pr_debug("\tidle_slope: 0x%08x\n", idle_slope);
 243         pr_debug("\thigh_credit: 0x%08x\n", high_credit);
 244         pr_debug("\tlow_credit: 0x%08x\n", low_credit);
 245
 246         /* enable AV algorithm */
 247         value = readl(ioaddr + MTL_ETSX_CTRL_BASE_ADDR(queue));
 248         value |= MTL_ETS_CTRL_AVALG;
 249         value |= MTL_ETS_CTRL_CC;
 250         writel(value, ioaddr + MTL_ETSX_CTRL_BASE_ADDR(queue));
 251
 252         /* configure send slope */
 253         value = readl(ioaddr + MTL_SEND_SLP_CREDX_BASE_ADDR(queue));
 254         value &= ~MTL_SEND_SLP_CRED_SSC_MASK;
 255         value |= send_slope & MTL_SEND_SLP_CRED_SSC_MASK;
 256         writel(value, ioaddr + MTL_SEND_SLP_CREDX_BASE_ADDR(queue));
 257
 258         /* configure idle slope (same register as tx weight) */
 259         dwmac4_set_mtl_tx_queue_weight(hw, idle_slope, queue);
 260
 261         /* configure high credit */
 262         value = readl(ioaddr + MTL_HIGH_CREDX_BASE_ADDR(queue));
 263         value &= ~MTL_HIGH_CRED_HC_MASK;
 264         value |= high_credit & MTL_HIGH_CRED_HC_MASK;
 265         writel(value, ioaddr + MTL_HIGH_CREDX_BASE_ADDR(queue));
 266
 267         /* configure high credit */
 268         value = readl(ioaddr + MTL_LOW_CREDX_BASE_ADDR(queue));
 269         value &= ~MTL_HIGH_CRED_LC_MASK;
 270         value |= low_credit & MTL_HIGH_CRED_LC_MASK;
 271         writel(value, ioaddr + MTL_LOW_CREDX_BASE_ADDR(queue));
 272 }
 273
 274 static void dwmac4_dump_regs(struct mac_device_info *hw, u32 *reg_space)
 275 {
 276         void __iomem *ioaddr = hw->pcsr;
 277         int i;
 278
 279         for (i = 0; i < GMAC_REG_NUM; i++)
 280                 reg_space[i] = readl(ioaddr + i * 4);
 281 }
 282
 283 static int dwmac4_rx_ipc_enable(struct mac_device_info *hw)
 284 {
 285         void __iomem *ioaddr = hw->pcsr;
 286         u32 value = readl(ioaddr + GMAC_CONFIG);
 287
 288         if (hw->rx_csum)
 289                 value |= GMAC_CONFIG_IPC;
 290         else
 291                 value &= ~GMAC_CONFIG_IPC;
 292
 293         writel(value, ioaddr + GMAC_CONFIG);
 294
 295         value = readl(ioaddr + GMAC_CONFIG);
 296
 297         return !!(value & GMAC_CONFIG_IPC);
 298 }
 299
 300 static void dwmac4_pmt(struct mac_device_info *hw, unsigned long mode)
 301 {
 302         void __iomem *ioaddr = hw->pcsr;
 303         unsigned int pmt = 0;
 304         u32 config;
 305
 306         if (mode & WAKE_MAGIC) {
 307                 pr_debug("GMAC: WOL Magic frame\n");
 308                 pmt |= power_down | magic_pkt_en;
 309         }
 310         if (mode & WAKE_UCAST) {
 311                 pr_debug("GMAC: WOL on global unicast\n");
 312                 pmt |= power_down | global_unicast | wake_up_frame_en;
 313         }
 314
 315         if (pmt) {
 316                 /* The receiver must be enabled for WOL before powering down */
 317                 config = readl(ioaddr + GMAC_CONFIG);
 318                 config |= GMAC_CONFIG_RE;
 319                 writel(config, ioaddr + GMAC_CONFIG);
 320         }
 321         writel(pmt, ioaddr + GMAC_PMT);
 322 }
 323
 324 static void dwmac4_set_umac_addr(struct mac_device_info *hw,
 325                                  unsigned char *addr, unsigned int reg_n)
 326 {
 327         void __iomem *ioaddr = hw->pcsr;
 328
 329         stmmac_dwmac4_set_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
 330                                    GMAC_ADDR_LOW(reg_n));
 331 }
 332
 333 static void dwmac4_get_umac_addr(struct mac_device_info *hw,
 334                                  unsigned char *addr, unsigned int reg_n)
 335 {
 336         void __iomem *ioaddr = hw->pcsr;
 337
 338         stmmac_dwmac4_get_mac_addr(ioaddr, addr, GMAC_ADDR_HIGH(reg_n),
 339                                    GMAC_ADDR_LOW(reg_n));
 340 }
 341
 342 static void dwmac4_set_eee_mode(struct mac_device_info *hw,
 343                                 bool en_tx_lpi_clockgating)
 344 {
 345         void __iomem *ioaddr = hw->pcsr;
 346         u32 value;
 347
 348         /* Enable the link status receive on RGMII, SGMII ore SMII
 349          * receive path and instruct the transmit to enter in LPI
 350          * state.
 351          */
 352         value = readl(ioaddr + GMAC4_LPI_CTRL_STATUS);
 353         value |= GMAC4_LPI_CTRL_STATUS_LPIEN | GMAC4_LPI_CTRL_STATUS_LPITXA;
 354
 355         if (en_tx_lpi_clockgating)
 356                 value |= GMAC4_LPI_CTRL_STATUS_LPITCSE;
 357
 358         writel(value, ioaddr + GMAC4_LPI_CTRL_STATUS);
 359 }
 360
 361 static void dwmac4_reset_eee_mode(struct mac_device_info *hw)
 362 {
 363         void __iomem *ioaddr = hw->pcsr;
 364         u32 value;
 365
 366         value = readl(ioaddr + GMAC4_LPI_CTRL_STATUS);
 367         value &= ~(GMAC4_LPI_CTRL_STATUS_LPIEN | GMAC4_LPI_CTRL_STATUS_LPITXA);
 368         writel(value, ioaddr + GMAC4_LPI_CTRL_STATUS);
 369 }
 370
 371 static void dwmac4_set_eee_pls(struct mac_device_info *hw, int link)
 372 {
 373         void __iomem *ioaddr = hw->pcsr;
 374         u32 value;
 375
 376         value = readl(ioaddr + GMAC4_LPI_CTRL_STATUS);
 377
 378         if (link)
 379                 value |= GMAC4_LPI_CTRL_STATUS_PLS;
 380         else
 381                 value &= ~GMAC4_LPI_CTRL_STATUS_PLS;
 382
 383         writel(value, ioaddr + GMAC4_LPI_CTRL_STATUS);
 384 }
 385
 386 static void dwmac4_set_eee_lpi_entry_timer(struct mac_device_info *hw, int et)
 387 {
 388         void __iomem *ioaddr = hw->pcsr;
 389         int value = et & STMMAC_ET_MAX;
 390         int regval;
 391
 392         /* Program LPI entry timer value into register */
 393         writel(value, ioaddr + GMAC4_LPI_ENTRY_TIMER);
 394
 395         /* Enable/disable LPI entry timer */
 396         regval = readl(ioaddr + GMAC4_LPI_CTRL_STATUS);
 397         regval |= GMAC4_LPI_CTRL_STATUS_LPIEN | GMAC4_LPI_CTRL_STATUS_LPITXA;
 398
 399         if (et)
 400                 regval |= GMAC4_LPI_CTRL_STATUS_LPIATE;
 401         else
 402                 regval &= ~GMAC4_LPI_CTRL_STATUS_LPIATE;
 403
 404         writel(regval, ioaddr + GMAC4_LPI_CTRL_STATUS);
 405 }
 406
 407 static void dwmac4_set_eee_timer(struct mac_device_info *hw, int ls, int tw)
 408 {
 409         void __iomem *ioaddr = hw->pcsr;
 410         int value = ((tw & 0xffff)) | ((ls & 0x3ff) << 16);
 411
 412         /* Program the timers in the LPI timer control register:
 413          * LS: minimum time (ms) for which the link
 414          *  status from PHY should be ok before transmitting
 415          *  the LPI pattern.
 416          * TW: minimum time (us) for which the core waits
 417          *  after it has stopped transmitting the LPI pattern.
 418          */
 419         writel(value, ioaddr + GMAC4_LPI_TIMER_CTRL);
 420 }
 421
 422 static void dwmac4_write_single_vlan(struct net_device *dev, u16 vid)
 423 {
 424         void __iomem *ioaddr = (void __iomem *)dev->base_addr;
 425         u32 val;
 426
 427         val = readl(ioaddr + GMAC_VLAN_TAG);
 428         val &= ~GMAC_VLAN_TAG_VID;
 429         val |= GMAC_VLAN_TAG_ETV | vid;
 430
 431         writel(val, ioaddr + GMAC_VLAN_TAG);
 432 }
 433
 434 static int dwmac4_write_vlan_filter(struct net_device *dev,
 435                                     struct mac_device_info *hw,
 436                                     u8 index, u32 data)
 437 {
 438         void __iomem *ioaddr = (void __iomem *)dev->base_addr;
 439         int i, timeout = 10;
 440         u32 val;
 441
 442         if (index >= hw->num_vlan)
 443                 return -EINVAL;
 444
 445         writel(data, ioaddr + GMAC_VLAN_TAG_DATA);
 446
 447         val = readl(ioaddr + GMAC_VLAN_TAG);
 448         val &= ~(GMAC_VLAN_TAG_CTRL_OFS_MASK |
 449                 GMAC_VLAN_TAG_CTRL_CT |
 450                 GMAC_VLAN_TAG_CTRL_OB);
 451         val |= (index << GMAC_VLAN_TAG_CTRL_OFS_SHIFT) | GMAC_VLAN_TAG_CTRL_OB;
 452
 453         writel(val, ioaddr + GMAC_VLAN_TAG);
 454
 455         for (i = 0; i < timeout; i++) {
 456                 val = readl(ioaddr + GMAC_VLAN_TAG);
 457                 if (!(val & GMAC_VLAN_TAG_CTRL_OB))
 458                         return 0;
 459                 udelay(1);
 460         }
 461
 462         netdev_err(dev, "Timeout accessing MAC_VLAN_Tag_Filter\n");
 463
 464         return -EBUSY;
 465 }
 466
 467 static int dwmac4_add_hw_vlan_rx_fltr(struct net_device *dev,
 468                                       struct mac_device_info *hw,
 469                                       __be16 proto, u16 vid)
 470 {
 471         int index = -1;
 472         u32 val = 0;
 473         int i, ret;
 474
 475         if (vid > 4095)
 476                 return -EINVAL;
 477
 478         if (hw->promisc) {
 479                 netdev_err(dev,
 480                            "Adding VLAN in promisc mode not supported\n");
 481                 return -EPERM;
 482         }
 483
 484         /* Single Rx VLAN Filter */
 485         if (hw->num_vlan == 1) {
 486                 /* For single VLAN filter, VID 0 means VLAN promiscuous */
 487                 if (vid == 0) {
 488                         netdev_warn(dev, "Adding VLAN ID 0 is not supported\n");
 489                         return -EPERM;
 490                 }
 491
 492                 if (hw->vlan_filter[0] & GMAC_VLAN_TAG_VID) {
 493                         netdev_err(dev, "Only single VLAN ID supported\n");
 494                         return -EPERM;
 495                 }
 496
 497                 hw->vlan_filter[0] = vid;
 498                 dwmac4_write_single_vlan(dev, vid);
 499
 500                 return 0;
 501         }
 502
 503         /* Extended Rx VLAN Filter Enable */
 504         val |= GMAC_VLAN_TAG_DATA_ETV | GMAC_VLAN_TAG_DATA_VEN | vid;
 505
 506         for (i = 0; i < hw->num_vlan; i++) {
 507                 if (hw->vlan_filter[i] == val)
 508                         return 0;
 509                 else if (!(hw->vlan_filter[i] & GMAC_VLAN_TAG_DATA_VEN))
 510                         index = i;
 511         }
 512
 513         if (index == -1) {
 514                 netdev_err(dev, "MAC_VLAN_Tag_Filter full (size: %0u)\n",
 515                            hw->num_vlan);
 516                 return -EPERM;
 517         }
 518
 519         ret = dwmac4_write_vlan_filter(dev, hw, index, val);
 520
 521         if (!ret)
 522                 hw->vlan_filter[index] = val;
 523
 524         return ret;
 525 }
 526
 527 static int dwmac4_del_hw_vlan_rx_fltr(struct net_device *dev,
 528                                       struct mac_device_info *hw,
 529                                       __be16 proto, u16 vid)
 530 {
 531         int i, ret = 0;
 532
 533         if (hw->promisc) {
 534                 netdev_err(dev,
 535                            "Deleting VLAN in promisc mode not supported\n");
 536                 return -EPERM;
 537         }
 538
 539         /* Single Rx VLAN Filter */
 540         if (hw->num_vlan == 1) {
 541                 if ((hw->vlan_filter[0] & GMAC_VLAN_TAG_VID) == vid) {
 542                         hw->vlan_filter[0] = 0;
 543                         dwmac4_write_single_vlan(dev, 0);
 544                 }
 545                 return 0;
 546         }
 547
 548         /* Extended Rx VLAN Filter Enable */
 549         for (i = 0; i < hw->num_vlan; i++) {
 550                 if ((hw->vlan_filter[i] & GMAC_VLAN_TAG_DATA_VID) == vid) {
 551                         ret = dwmac4_write_vlan_filter(dev, hw, i, 0);
 552
 553                         if (!ret)
 554                                 hw->vlan_filter[i] = 0;
 555                         else
 556                                 return ret;
 557                 }
 558         }
 559
 560         return ret;
 561 }
 562
 563 static void dwmac4_vlan_promisc_enable(struct net_device *dev,
 564                                        struct mac_device_info *hw)
 565 {
 566         void __iomem *ioaddr = hw->pcsr;
 567         u32 value;
 568         u32 hash;
 569         u32 val;
 570         int i;
 571
 572         /* Single Rx VLAN Filter */
 573         if (hw->num_vlan == 1) {
 574                 dwmac4_write_single_vlan(dev, 0);
 575                 return;
 576         }
 577
 578         /* Extended Rx VLAN Filter Enable */
 579         for (i = 0; i < hw->num_vlan; i++) {
 580                 if (hw->vlan_filter[i] & GMAC_VLAN_TAG_DATA_VEN) {
 581                         val = hw->vlan_filter[i] & ~GMAC_VLAN_TAG_DATA_VEN;
 582                         dwmac4_write_vlan_filter(dev, hw, i, val);
 583                 }
 584         }
 585
 586         hash = readl(ioaddr + GMAC_VLAN_HASH_TABLE);
 587         if (hash & GMAC_VLAN_VLHT) {
 588                 value = readl(ioaddr + GMAC_VLAN_TAG);
 589                 if (value & GMAC_VLAN_VTHM) {
 590                         value &= ~GMAC_VLAN_VTHM;
 591                         writel(value, ioaddr + GMAC_VLAN_TAG);
 592                 }
 593         }
 594 }
 595
 596 static void dwmac4_restore_hw_vlan_rx_fltr(struct net_device *dev,
 597                                            struct mac_device_info *hw)
 598 {
 599         void __iomem *ioaddr = hw->pcsr;
 600         u32 value;
 601         u32 hash;
 602         u32 val;
 603         int i;
 604
 605         /* Single Rx VLAN Filter */
 606         if (hw->num_vlan == 1) {
 607                 dwmac4_write_single_vlan(dev, hw->vlan_filter[0]);
 608                 return;
 609         }
 610
 611         /* Extended Rx VLAN Filter Enable */
 612         for (i = 0; i < hw->num_vlan; i++) {
 613                 if (hw->vlan_filter[i] & GMAC_VLAN_TAG_DATA_VEN) {
 614                         val = hw->vlan_filter[i];
 615                         dwmac4_write_vlan_filter(dev, hw, i, val);
 616                 }
 617         }
 618
 619         hash = readl(ioaddr + GMAC_VLAN_HASH_TABLE);
 620         if (hash & GMAC_VLAN_VLHT) {
 621                 value = readl(ioaddr + GMAC_VLAN_TAG);
 622                 value |= GMAC_VLAN_VTHM;
 623                 writel(value, ioaddr + GMAC_VLAN_TAG);
 624         }
 625 }
 626
 627 static void dwmac4_set_filter(struct mac_device_info *hw,
 628                               struct net_device *dev)
 629 {
 630         void __iomem *ioaddr = (void __iomem *)dev->base_addr;
 631         int numhashregs = (hw->multicast_filter_bins >> 5);
 632         int mcbitslog2 = hw->mcast_bits_log2;
 633         unsigned int value;
 634         u32 mc_filter[8];
 635         int i;
 636
 637         memset(mc_filter, 0, sizeof(mc_filter));
 638
 639         value = readl(ioaddr + GMAC_PACKET_FILTER);
 640         value &= ~GMAC_PACKET_FILTER_HMC;
 641         value &= ~GMAC_PACKET_FILTER_HPF;
 642         value &= ~GMAC_PACKET_FILTER_PCF;
 643         value &= ~GMAC_PACKET_FILTER_PM;
 644         value &= ~GMAC_PACKET_FILTER_PR;
 645         value &= ~GMAC_PACKET_FILTER_RA;
 646         if (dev->flags & IFF_PROMISC) {
 647                 /* VLAN Tag Filter Fail Packets Queuing */
 648                 if (hw->vlan_fail_q_en) {
 649                         value = readl(ioaddr + GMAC_RXQ_CTRL4);
 650                         value &= ~GMAC_RXQCTRL_VFFQ_MASK;
 651                         value |= GMAC_RXQCTRL_VFFQE |
 652                                  (hw->vlan_fail_q << GMAC_RXQCTRL_VFFQ_SHIFT);
 653                         writel(value, ioaddr + GMAC_RXQ_CTRL4);
 654                         value = GMAC_PACKET_FILTER_PR | GMAC_PACKET_FILTER_RA;
 655                 } else {
 656                         value = GMAC_PACKET_FILTER_PR | GMAC_PACKET_FILTER_PCF;
 657                 }
 658
 659         } else if ((dev->flags & IFF_ALLMULTI) ||
 660                    (netdev_mc_count(dev) > hw->multicast_filter_bins)) {
 661                 /* Pass all multi */
 662                 value |= GMAC_PACKET_FILTER_PM;
 663                 /* Set all the bits of the HASH tab */
 664                 memset(mc_filter, 0xff, sizeof(mc_filter));
 665         } else if (!netdev_mc_empty(dev) && (dev->flags & IFF_MULTICAST)) {
 666                 struct netdev_hw_addr *ha;
 667
 668                 /* Hash filter for multicast */
 669                 value |= GMAC_PACKET_FILTER_HMC;
 670
 671                 netdev_for_each_mc_addr(ha, dev) {
 672                         /* The upper n bits of the calculated CRC are used to
 673                          * index the contents of the hash table. The number of
 674                          * bits used depends on the hardware configuration
 675                          * selected at core configuration time.
 676                          */
 677                         u32 bit_nr = bitrev32(~crc32_le(~0, ha->addr,
 678                                         ETH_ALEN)) >> (32 - mcbitslog2);
 679                         /* The most significant bit determines the register to
 680                          * use (H/L) while the other 5 bits determine the bit
 681                          * within the register.
 682                          */
 683                         mc_filter[bit_nr >> 5] |= (1 << (bit_nr & 0x1f));
 684                 }
 685         }
 686
 687         for (i = 0; i < numhashregs; i++)
 688                 writel(mc_filter[i], ioaddr + GMAC_HASH_TAB(i));
 689
 690         value |= GMAC_PACKET_FILTER_HPF;
 691
 692         /* Handle multiple unicast addresses */
 693         if (netdev_uc_count(dev) > hw->unicast_filter_entries) {
 694                 /* Switch to promiscuous mode if more than 128 addrs
 695                  * are required
 696                  */
 697                 value |= GMAC_PACKET_FILTER_PR;
 698         } else {
 699                 struct netdev_hw_addr *ha;
 700                 int reg = 1;
 701
 702                 netdev_for_each_uc_addr(ha, dev) {
 703                         dwmac4_set_umac_addr(hw, ha->addr, reg);
 704                         reg++;
 705                 }
 706
 707                 while (reg < GMAC_MAX_PERFECT_ADDRESSES) {
 708                         writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
 709                         writel(0, ioaddr + GMAC_ADDR_LOW(reg));
 710                         reg++;
 711                 }
 712         }
 713
 714         /* VLAN filtering */
 715         if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
 716                 value |= GMAC_PACKET_FILTER_VTFE;
 717
 718         writel(value, ioaddr + GMAC_PACKET_FILTER);
 719
 720         if (dev->flags & IFF_PROMISC && !hw->vlan_fail_q_en) {
 721                 if (!hw->promisc) {
 722                         hw->promisc = 1;
 723                         dwmac4_vlan_promisc_enable(dev, hw);
 724                 }
 725         } else {
 726                 if (hw->promisc) {
 727                         hw->promisc = 0;
 728                         dwmac4_restore_hw_vlan_rx_fltr(dev, hw);
 729                 }
 730         }
 731 }
 732
 733 static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
 734                              unsigned int fc, unsigned int pause_time,
 735                              u32 tx_cnt)
 736 {
 737         void __iomem *ioaddr = hw->pcsr;
 738         unsigned int flow = 0;
 739         u32 queue = 0;
 740
 741         pr_debug("GMAC Flow-Control:\n");
 742         if (fc & FLOW_RX) {
 743                 pr_debug("\tReceive Flow-Control ON\n");
 744                 flow |= GMAC_RX_FLOW_CTRL_RFE;
 745         }
 746         writel(flow, ioaddr + GMAC_RX_FLOW_CTRL);
 747
 748         if (fc & FLOW_TX) {
 749                 pr_debug("\tTransmit Flow-Control ON\n");
 750
 751                 if (duplex)
 752                         pr_debug("\tduplex mode: PAUSE %d\n", pause_time);
 753
 754                 for (queue = 0; queue < tx_cnt; queue++) {
 755                         flow = GMAC_TX_FLOW_CTRL_TFE;
 756
 757                         if (duplex)
 758                                 flow |=
 759                                 (pause_time << GMAC_TX_FLOW_CTRL_PT_SHIFT);
 760
 761                         writel(flow, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 762                 }
 763         } else {
 764                 for (queue = 0; queue < tx_cnt; queue++)
 765                         writel(0, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue));
 766         }
 767 }
 768
 769 static void dwmac4_ctrl_ane(void __iomem *ioaddr, bool ane, bool srgmi_ral,
 770                             bool loopback)
 771 {
 772         dwmac_ctrl_ane(ioaddr, GMAC_PCS_BASE, ane, srgmi_ral, loopback);
 773 }
 774
 775 static void dwmac4_rane(void __iomem *ioaddr, bool restart)
 776 {
 777         dwmac_rane(ioaddr, GMAC_PCS_BASE, restart);
 778 }
 779
 780 static void dwmac4_get_adv_lp(void __iomem *ioaddr, struct rgmii_adv *adv)
 781 {
 782         dwmac_get_adv_lp(ioaddr, GMAC_PCS_BASE, adv);
 783 }
 784
 785 /* RGMII or SMII interface */
 786 static void dwmac4_phystatus(void __iomem *ioaddr, struct stmmac_extra_stats *x)
 787 {
 788         u32 status;
 789
 790         status = readl(ioaddr + GMAC_PHYIF_CONTROL_STATUS);
 791         x->irq_rgmii_n++;
 792
 793         /* Check the link status */
 794         if (status & GMAC_PHYIF_CTRLSTATUS_LNKSTS) {
 795                 int speed_value;
 796
 797                 x->pcs_link = 1;
 798
 799                 speed_value = ((status & GMAC_PHYIF_CTRLSTATUS_SPEED) >>
 800                                GMAC_PHYIF_CTRLSTATUS_SPEED_SHIFT);
 801                 if (speed_value == GMAC_PHYIF_CTRLSTATUS_SPEED_125)
 802                         x->pcs_speed = SPEED_1000;
 803                 else if (speed_value == GMAC_PHYIF_CTRLSTATUS_SPEED_25)
 804                         x->pcs_speed = SPEED_100;
 805                 else
 806                         x->pcs_speed = SPEED_10;
 807
 808                 x->pcs_duplex = (status & GMAC_PHYIF_CTRLSTATUS_LNKMOD_MASK);
 809
 810                 pr_info("Link is Up - %d/%s\n", (int)x->pcs_speed,
 811                         x->pcs_duplex ? "Full" : "Half");
 812         } else {
 813                 x->pcs_link = 0;
 814                 pr_info("Link is Down\n");
 815         }
 816 }
 817
 818 static int dwmac4_irq_mtl_status(struct mac_device_info *hw, u32 chan)
 819 {
 820         void __iomem *ioaddr = hw->pcsr;
 821         u32 mtl_int_qx_status;
 822         int ret = 0;
 823
 824         mtl_int_qx_status = readl(ioaddr + MTL_INT_STATUS);
 825
 826         /* Check MTL Interrupt */
 827         if (mtl_int_qx_status & MTL_INT_QX(chan)) {
 828                 /* read Queue x Interrupt status */
 829                 u32 status = readl(ioaddr + MTL_CHAN_INT_CTRL(chan));
 830
 831                 if (status & MTL_RX_OVERFLOW_INT) {
 832                         /*  clear Interrupt */
 833                         writel(status | MTL_RX_OVERFLOW_INT,
 834                                ioaddr + MTL_CHAN_INT_CTRL(chan));
 835                         ret = CORE_IRQ_MTL_RX_OVERFLOW;
 836                 }
 837         }
 838
 839         return ret;
 840 }
 841
 842 static int dwmac4_irq_status(struct mac_device_info *hw,
 843                              struct stmmac_extra_stats *x)
 844 {
 845         void __iomem *ioaddr = hw->pcsr;
 846         u32 intr_status = readl(ioaddr + GMAC_INT_STATUS);
 847         u32 intr_enable = readl(ioaddr + GMAC_INT_EN);
 848         int ret = 0;
 849
 850         /* Discard disabled bits */
 851         intr_status &= intr_enable;
 852
 853         /* Not used events (e.g. MMC interrupts) are not handled. */
 854         if ((intr_status & mmc_tx_irq))
 855                 x->mmc_tx_irq_n++;
 856         if (unlikely(intr_status & mmc_rx_irq))
 857                 x->mmc_rx_irq_n++;
 858         if (unlikely(intr_status & mmc_rx_csum_offload_irq))
 859                 x->mmc_rx_csum_offload_irq_n++;
 860         /* Clear the PMT bits 5 and 6 by reading the PMT status reg */
 861         if (unlikely(intr_status & pmt_irq)) {
 862                 readl(ioaddr + GMAC_PMT);
 863                 x->irq_receive_pmt_irq_n++;
 864         }
 865
 866         /* MAC tx/rx EEE LPI entry/exit interrupts */
 867         if (intr_status & lpi_irq) {
 868                 /* Clear LPI interrupt by reading MAC_LPI_Control_Status */
 869                 u32 status = readl(ioaddr + GMAC4_LPI_CTRL_STATUS);
 870
 871                 if (status & GMAC4_LPI_CTRL_STATUS_TLPIEN) {
 872                         ret |= CORE_IRQ_TX_PATH_IN_LPI_MODE;
 873                         x->irq_tx_path_in_lpi_mode_n++;
 874                 }
 875                 if (status & GMAC4_LPI_CTRL_STATUS_TLPIEX) {
 876                         ret |= CORE_IRQ_TX_PATH_EXIT_LPI_MODE;
 877                         x->irq_tx_path_exit_lpi_mode_n++;
 878                 }
 879                 if (status & GMAC4_LPI_CTRL_STATUS_RLPIEN)
 880                         x->irq_rx_path_in_lpi_mode_n++;
 881                 if (status & GMAC4_LPI_CTRL_STATUS_RLPIEX)
 882                         x->irq_rx_path_exit_lpi_mode_n++;
 883         }
 884
 885         dwmac_pcs_isr(ioaddr, GMAC_PCS_BASE, intr_status, x);
 886         if (intr_status & PCS_RGSMIIIS_IRQ)
 887                 dwmac4_phystatus(ioaddr, x);
 888
 889         return ret;
 890 }
 891
 892 static void dwmac4_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x,
 893                          u32 rx_queues, u32 tx_queues)
 894 {
 895         u32 value;
 896         u32 queue;
 897
 898         for (queue = 0; queue < tx_queues; queue++) {
 899                 value = readl(ioaddr + MTL_CHAN_TX_DEBUG(queue));
 900
 901                 if (value & MTL_DEBUG_TXSTSFSTS)
 902                         x->mtl_tx_status_fifo_full++;
 903                 if (value & MTL_DEBUG_TXFSTS)
 904                         x->mtl_tx_fifo_not_empty++;
 905                 if (value & MTL_DEBUG_TWCSTS)
 906                         x->mmtl_fifo_ctrl++;
 907                 if (value & MTL_DEBUG_TRCSTS_MASK) {
 908                         u32 trcsts = (value & MTL_DEBUG_TRCSTS_MASK)
 909                                      >> MTL_DEBUG_TRCSTS_SHIFT;
 910                         if (trcsts == MTL_DEBUG_TRCSTS_WRITE)
 911                                 x->mtl_tx_fifo_read_ctrl_write++;
 912                         else if (trcsts == MTL_DEBUG_TRCSTS_TXW)
 913                                 x->mtl_tx_fifo_read_ctrl_wait++;
 914                         else if (trcsts == MTL_DEBUG_TRCSTS_READ)
 915                                 x->mtl_tx_fifo_read_ctrl_read++;
 916                         else
 917                                 x->mtl_tx_fifo_read_ctrl_idle++;
 918                 }
 919                 if (value & MTL_DEBUG_TXPAUSED)
 920                         x->mac_tx_in_pause++;
 921         }
 922
 923         for (queue = 0; queue < rx_queues; queue++) {
 924                 value = readl(ioaddr + MTL_CHAN_RX_DEBUG(queue));
 925
 926                 if (value & MTL_DEBUG_RXFSTS_MASK) {
 927                         u32 rxfsts = (value & MTL_DEBUG_RXFSTS_MASK)
 928                                      >> MTL_DEBUG_RRCSTS_SHIFT;
 929
 930                         if (rxfsts == MTL_DEBUG_RXFSTS_FULL)
 931                                 x->mtl_rx_fifo_fill_level_full++;
 932                         else if (rxfsts == MTL_DEBUG_RXFSTS_AT)
 933                                 x->mtl_rx_fifo_fill_above_thresh++;
 934                         else if (rxfsts == MTL_DEBUG_RXFSTS_BT)
 935                                 x->mtl_rx_fifo_fill_below_thresh++;
 936                         else
 937                                 x->mtl_rx_fifo_fill_level_empty++;
 938                 }
 939                 if (value & MTL_DEBUG_RRCSTS_MASK) {
 940                         u32 rrcsts = (value & MTL_DEBUG_RRCSTS_MASK) >>
 941                                      MTL_DEBUG_RRCSTS_SHIFT;
 942
 943                         if (rrcsts == MTL_DEBUG_RRCSTS_FLUSH)
 944                                 x->mtl_rx_fifo_read_ctrl_flush++;
 945                         else if (rrcsts == MTL_DEBUG_RRCSTS_RSTAT)
 946                                 x->mtl_rx_fifo_read_ctrl_read_data++;
 947                         else if (rrcsts == MTL_DEBUG_RRCSTS_RDATA)
 948                                 x->mtl_rx_fifo_read_ctrl_status++;
 949                         else
 950                                 x->mtl_rx_fifo_read_ctrl_idle++;
 951                 }
 952                 if (value & MTL_DEBUG_RWCSTS)
 953                         x->mtl_rx_fifo_ctrl_active++;
 954         }
 955
 956         /* GMAC debug */
 957         value = readl(ioaddr + GMAC_DEBUG);
 958
 959         if (value & GMAC_DEBUG_TFCSTS_MASK) {
 960                 u32 tfcsts = (value & GMAC_DEBUG_TFCSTS_MASK)
 961                               >> GMAC_DEBUG_TFCSTS_SHIFT;
 962
 963                 if (tfcsts == GMAC_DEBUG_TFCSTS_XFER)
 964                         x->mac_tx_frame_ctrl_xfer++;
 965                 else if (tfcsts == GMAC_DEBUG_TFCSTS_GEN_PAUSE)
 966                         x->mac_tx_frame_ctrl_pause++;
 967                 else if (tfcsts == GMAC_DEBUG_TFCSTS_WAIT)
 968                         x->mac_tx_frame_ctrl_wait++;
 969                 else
 970                         x->mac_tx_frame_ctrl_idle++;
 971         }
 972         if (value & GMAC_DEBUG_TPESTS)
 973                 x->mac_gmii_tx_proto_engine++;
 974         if (value & GMAC_DEBUG_RFCFCSTS_MASK)
 975                 x->mac_rx_frame_ctrl_fifo = (value & GMAC_DEBUG_RFCFCSTS_MASK)
 976                                             >> GMAC_DEBUG_RFCFCSTS_SHIFT;
 977         if (value & GMAC_DEBUG_RPESTS)
 978                 x->mac_gmii_rx_proto_engine++;
 979 }
 980
 981 static void dwmac4_set_mac_loopback(void __iomem *ioaddr, bool enable)
 982 {
 983         u32 value = readl(ioaddr + GMAC_CONFIG);
 984
 985         if (enable)
 986                 value |= GMAC_CONFIG_LM;
 987         else
 988                 value &= ~GMAC_CONFIG_LM;
 989
 990         writel(value, ioaddr + GMAC_CONFIG);
 991 }
 992
 993 static void dwmac4_update_vlan_hash(struct mac_device_info *hw, u32 hash,
 994                                     __le16 perfect_match, bool is_double)
 995 {
 996         void __iomem *ioaddr = hw->pcsr;
 997         u32 value;
 998
 999         writel(hash, ioaddr + GMAC_VLAN_HASH_TABLE);
1000
1001         value = readl(ioaddr + GMAC_VLAN_TAG);
1002
1003         if (hash) {
1004                 value |= GMAC_VLAN_VTHM | GMAC_VLAN_ETV;
1005                 if (is_double) {
1006                         value |= GMAC_VLAN_EDVLP;
1007                         value |= GMAC_VLAN_ESVL;
1008                         value |= GMAC_VLAN_DOVLTC;
1009                 }
1010
1011                 writel(value, ioaddr + GMAC_VLAN_TAG);
1012         } else if (perfect_match) {
1013                 u32 value = GMAC_VLAN_ETV;
1014
1015                 if (is_double) {
1016                         value |= GMAC_VLAN_EDVLP;
1017                         value |= GMAC_VLAN_ESVL;
1018                         value |= GMAC_VLAN_DOVLTC;
1019                 }
1020
1021                 writel(value | perfect_match, ioaddr + GMAC_VLAN_TAG);
1022         } else {
1023                 value &= ~(GMAC_VLAN_VTHM | GMAC_VLAN_ETV);
1024                 value &= ~(GMAC_VLAN_EDVLP | GMAC_VLAN_ESVL);
1025                 value &= ~GMAC_VLAN_DOVLTC;
1026                 value &= ~GMAC_VLAN_VID;
1027
1028                 writel(value, ioaddr + GMAC_VLAN_TAG);
1029         }
1030 }
1031
1032 static void dwmac4_sarc_configure(void __iomem *ioaddr, int val)
1033 {
1034         u32 value = readl(ioaddr + GMAC_CONFIG);
1035
1036         value &= ~GMAC_CONFIG_SARC;
1037         value |= val << GMAC_CONFIG_SARC_SHIFT;
1038
1039         writel(value, ioaddr + GMAC_CONFIG);
1040 }
1041
1042 static void dwmac4_enable_vlan(struct mac_device_info *hw, u32 type)
1043 {
1044         void __iomem *ioaddr = hw->pcsr;
1045         u32 value;
1046
1047         value = readl(ioaddr + GMAC_VLAN_INCL);
1048         value |= GMAC_VLAN_VLTI;
1049         value |= GMAC_VLAN_CSVL; /* Only use SVLAN */
1050         value &= ~GMAC_VLAN_VLC;
1051         value |= (type << GMAC_VLAN_VLC_SHIFT) & GMAC_VLAN_VLC;
1052         writel(value, ioaddr + GMAC_VLAN_INCL);
1053 }
1054
1055 static void dwmac4_set_arp_offload(struct mac_device_info *hw, bool en,
1056                                    u32 addr)
1057 {
1058         void __iomem *ioaddr = hw->pcsr;
1059         u32 value;
1060
1061         writel(addr, ioaddr + GMAC_ARP_ADDR);
1062
1063         value = readl(ioaddr + GMAC_CONFIG);
1064         if (en)
1065                 value |= GMAC_CONFIG_ARPEN;
1066         else
1067                 value &= ~GMAC_CONFIG_ARPEN;
1068         writel(value, ioaddr + GMAC_CONFIG);
1069 }
1070
1071 static int dwmac4_config_l3_filter(struct mac_device_info *hw, u32 filter_no,
1072                                    bool en, bool ipv6, bool sa, bool inv,
1073                                    u32 match)
1074 {
1075         void __iomem *ioaddr = hw->pcsr;
1076         u32 value;
1077
1078         value = readl(ioaddr + GMAC_PACKET_FILTER);
1079         value |= GMAC_PACKET_FILTER_IPFE;
1080         writel(value, ioaddr + GMAC_PACKET_FILTER);
1081
1082         value = readl(ioaddr + GMAC_L3L4_CTRL(filter_no));
1083
1084         /* For IPv6 not both SA/DA filters can be active */
1085         if (ipv6) {
1086                 value |= GMAC_L3PEN0;
1087                 value &= ~(GMAC_L3SAM0 | GMAC_L3SAIM0);
1088                 value &= ~(GMAC_L3DAM0 | GMAC_L3DAIM0);
1089                 if (sa) {
1090                         value |= GMAC_L3SAM0;
1091                         if (inv)
1092                                 value |= GMAC_L3SAIM0;
1093                 } else {
1094                         value |= GMAC_L3DAM0;
1095                         if (inv)
1096                                 value |= GMAC_L3DAIM0;
1097                 }
1098         } else {
1099                 value &= ~GMAC_L3PEN0;
1100                 if (sa) {
1101                         value |= GMAC_L3SAM0;
1102                         if (inv)
1103                                 value |= GMAC_L3SAIM0;
1104                 } else {
1105                         value |= GMAC_L3DAM0;
1106                         if (inv)
1107                                 value |= GMAC_L3DAIM0;
1108                 }
1109         }
1110
1111         writel(value, ioaddr + GMAC_L3L4_CTRL(filter_no));
1112
1113         if (sa) {
1114                 writel(match, ioaddr + GMAC_L3_ADDR0(filter_no));
1115         } else {
1116                 writel(match, ioaddr + GMAC_L3_ADDR1(filter_no));
1117         }
1118
1119         if (!en)
1120                 writel(0, ioaddr + GMAC_L3L4_CTRL(filter_no));
1121
1122         return 0;
1123 }
1124
1125 static int dwmac4_config_l4_filter(struct mac_device_info *hw, u32 filter_no,
1126                                    bool en, bool udp, bool sa, bool inv,
1127                                    u32 match)
1128 {
1129         void __iomem *ioaddr = hw->pcsr;
1130         u32 value;
1131
1132         value = readl(ioaddr + GMAC_PACKET_FILTER);
1133         value |= GMAC_PACKET_FILTER_IPFE;
1134         writel(value, ioaddr + GMAC_PACKET_FILTER);
1135
1136         value = readl(ioaddr + GMAC_L3L4_CTRL(filter_no));
1137         if (udp) {
1138                 value |= GMAC_L4PEN0;
1139         } else {
1140                 value &= ~GMAC_L4PEN0;
1141         }
1142
1143         value &= ~(GMAC_L4SPM0 | GMAC_L4SPIM0);
1144         value &= ~(GMAC_L4DPM0 | GMAC_L4DPIM0);
1145         if (sa) {
1146                 value |= GMAC_L4SPM0;
1147                 if (inv)
1148                         value |= GMAC_L4SPIM0;
1149         } else {
1150                 value |= GMAC_L4DPM0;
1151                 if (inv)
1152                         value |= GMAC_L4DPIM0;
1153         }
1154
1155         writel(value, ioaddr + GMAC_L3L4_CTRL(filter_no));
1156
1157         if (sa) {
1158                 value = match & GMAC_L4SP0;
1159         } else {
1160                 value = (match << GMAC_L4DP0_SHIFT) & GMAC_L4DP0;
1161         }
1162
1163         writel(value, ioaddr + GMAC_L4_ADDR(filter_no));
1164
1165         if (!en)
1166                 writel(0, ioaddr + GMAC_L3L4_CTRL(filter_no));
1167
1168         return 0;
1169 }
1170
1171 const struct stmmac_ops dwmac4_ops = {
1172         .core_init = dwmac4_core_init,
1173         .set_mac = stmmac_set_mac,
1174         .rx_ipc = dwmac4_rx_ipc_enable,
1175         .rx_queue_enable = dwmac4_rx_queue_enable,
1176         .rx_queue_prio = dwmac4_rx_queue_priority,
1177         .tx_queue_prio = dwmac4_tx_queue_priority,
1178         .rx_queue_routing = dwmac4_rx_queue_routing,
1179         .prog_mtl_rx_algorithms = dwmac4_prog_mtl_rx_algorithms,
1180         .prog_mtl_tx_algorithms = dwmac4_prog_mtl_tx_algorithms,
1181         .set_mtl_tx_queue_weight = dwmac4_set_mtl_tx_queue_weight,
1182         .map_mtl_to_dma = dwmac4_map_mtl_dma,
1183         .config_cbs = dwmac4_config_cbs,
1184         .dump_regs = dwmac4_dump_regs,
1185         .host_irq_status = dwmac4_irq_status,
1186         .host_mtl_irq_status = dwmac4_irq_mtl_status,
1187         .flow_ctrl = dwmac4_flow_ctrl,
1188         .pmt = dwmac4_pmt,
1189         .set_umac_addr = dwmac4_set_umac_addr,
1190         .get_umac_addr = dwmac4_get_umac_addr,
1191         .set_eee_mode = dwmac4_set_eee_mode,
1192         .reset_eee_mode = dwmac4_reset_eee_mode,
1193         .set_eee_lpi_entry_timer = dwmac4_set_eee_lpi_entry_timer,
1194         .set_eee_timer = dwmac4_set_eee_timer,
1195         .set_eee_pls = dwmac4_set_eee_pls,
1196         .pcs_ctrl_ane = dwmac4_ctrl_ane,
1197         .pcs_rane = dwmac4_rane,
1198         .pcs_get_adv_lp = dwmac4_get_adv_lp,
1199         .debug = dwmac4_debug,
1200         .set_filter = dwmac4_set_filter,
1201         .set_mac_loopback = dwmac4_set_mac_loopback,
1202         .update_vlan_hash = dwmac4_update_vlan_hash,
1203         .sarc_configure = dwmac4_sarc_configure,
1204         .enable_vlan = dwmac4_enable_vlan,
1205         .set_arp_offload = dwmac4_set_arp_offload,
1206         .config_l3_filter = dwmac4_config_l3_filter,
1207         .config_l4_filter = dwmac4_config_l4_filter,
1208         .add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
1209         .del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
1210         .restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,
1211 };
1212
1213 const struct stmmac_ops dwmac410_ops = {
1214         .core_init = dwmac4_core_init,
1215         .set_mac = stmmac_dwmac4_set_mac,
1216         .rx_ipc = dwmac4_rx_ipc_enable,
1217         .rx_queue_enable = dwmac4_rx_queue_enable,
1218         .rx_queue_prio = dwmac4_rx_queue_priority,
1219         .tx_queue_prio = dwmac4_tx_queue_priority,
1220         .rx_queue_routing = dwmac4_rx_queue_routing,
1221         .prog_mtl_rx_algorithms = dwmac4_prog_mtl_rx_algorithms,
1222         .prog_mtl_tx_algorithms = dwmac4_prog_mtl_tx_algorithms,
1223         .set_mtl_tx_queue_weight = dwmac4_set_mtl_tx_queue_weight,
1224         .map_mtl_to_dma = dwmac4_map_mtl_dma,
1225         .config_cbs = dwmac4_config_cbs,
1226         .dump_regs = dwmac4_dump_regs,
1227         .host_irq_status = dwmac4_irq_status,
1228         .host_mtl_irq_status = dwmac4_irq_mtl_status,
1229         .flow_ctrl = dwmac4_flow_ctrl,
1230         .pmt = dwmac4_pmt,
1231         .set_umac_addr = dwmac4_set_umac_addr,
1232         .get_umac_addr = dwmac4_get_umac_addr,
1233         .set_eee_mode = dwmac4_set_eee_mode,
1234         .reset_eee_mode = dwmac4_reset_eee_mode,
1235         .set_eee_lpi_entry_timer = dwmac4_set_eee_lpi_entry_timer,
1236         .set_eee_timer = dwmac4_set_eee_timer,
1237         .set_eee_pls = dwmac4_set_eee_pls,
1238         .pcs_ctrl_ane = dwmac4_ctrl_ane,
1239         .pcs_rane = dwmac4_rane,
1240         .pcs_get_adv_lp = dwmac4_get_adv_lp,
1241         .debug = dwmac4_debug,
1242         .set_filter = dwmac4_set_filter,
1243         .flex_pps_config = dwmac5_flex_pps_config,
1244         .set_mac_loopback = dwmac4_set_mac_loopback,
1245         .update_vlan_hash = dwmac4_update_vlan_hash,
1246         .sarc_configure = dwmac4_sarc_configure,
1247         .enable_vlan = dwmac4_enable_vlan,
1248         .set_arp_offload = dwmac4_set_arp_offload,
1249         .config_l3_filter = dwmac4_config_l3_filter,
1250         .config_l4_filter = dwmac4_config_l4_filter,
1251         .est_configure = dwmac5_est_configure,
1252         .fpe_configure = dwmac5_fpe_configure,
1253         .fpe_send_mpacket = dwmac5_fpe_send_mpacket,
1254         .fpe_irq_status = dwmac5_fpe_irq_status,
1255         .add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
1256         .del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
1257         .restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,
1258 };
1259
1260 const struct stmmac_ops dwmac510_ops = {
1261         .core_init = dwmac4_core_init,
1262         .set_mac = stmmac_dwmac4_set_mac,
1263         .rx_ipc = dwmac4_rx_ipc_enable,
1264         .rx_queue_enable = dwmac4_rx_queue_enable,
1265         .rx_queue_prio = dwmac4_rx_queue_priority,
1266         .tx_queue_prio = dwmac4_tx_queue_priority,
1267         .rx_queue_routing = dwmac4_rx_queue_routing,
1268         .prog_mtl_rx_algorithms = dwmac4_prog_mtl_rx_algorithms,
1269         .prog_mtl_tx_algorithms = dwmac4_prog_mtl_tx_algorithms,
1270         .set_mtl_tx_queue_weight = dwmac4_set_mtl_tx_queue_weight,
1271         .map_mtl_to_dma = dwmac4_map_mtl_dma,
1272         .config_cbs = dwmac4_config_cbs,
1273         .dump_regs = dwmac4_dump_regs,
1274         .host_irq_status = dwmac4_irq_status,
1275         .host_mtl_irq_status = dwmac4_irq_mtl_status,
1276         .flow_ctrl = dwmac4_flow_ctrl,
1277         .pmt = dwmac4_pmt,
1278         .set_umac_addr = dwmac4_set_umac_addr,
1279         .get_umac_addr = dwmac4_get_umac_addr,
1280         .set_eee_mode = dwmac4_set_eee_mode,
1281         .reset_eee_mode = dwmac4_reset_eee_mode,
1282         .set_eee_lpi_entry_timer = dwmac4_set_eee_lpi_entry_timer,
1283         .set_eee_timer = dwmac4_set_eee_timer,
1284         .set_eee_pls = dwmac4_set_eee_pls,
1285         .pcs_ctrl_ane = dwmac4_ctrl_ane,
1286         .pcs_rane = dwmac4_rane,
1287         .pcs_get_adv_lp = dwmac4_get_adv_lp,
1288         .debug = dwmac4_debug,
1289         .set_filter = dwmac4_set_filter,
1290         .safety_feat_config = dwmac5_safety_feat_config,
1291         .safety_feat_irq_status = dwmac5_safety_feat_irq_status,
1292         .safety_feat_dump = dwmac5_safety_feat_dump,
1293         .rxp_config = dwmac5_rxp_config,
1294         .flex_pps_config = dwmac5_flex_pps_config,
1295         .set_mac_loopback = dwmac4_set_mac_loopback,
1296         .update_vlan_hash = dwmac4_update_vlan_hash,
1297         .sarc_configure = dwmac4_sarc_configure,
1298         .enable_vlan = dwmac4_enable_vlan,
1299         .set_arp_offload = dwmac4_set_arp_offload,
1300         .config_l3_filter = dwmac4_config_l3_filter,
1301         .config_l4_filter = dwmac4_config_l4_filter,
1302         .est_configure = dwmac5_est_configure,
1303         .fpe_configure = dwmac5_fpe_configure,
1304         .fpe_send_mpacket = dwmac5_fpe_send_mpacket,
1305         .fpe_irq_status = dwmac5_fpe_irq_status,
1306         .add_hw_vlan_rx_fltr = dwmac4_add_hw_vlan_rx_fltr,
1307         .del_hw_vlan_rx_fltr = dwmac4_del_hw_vlan_rx_fltr,
1308         .restore_hw_vlan_rx_fltr = dwmac4_restore_hw_vlan_rx_fltr,
1309 };
1310
1311 static u32 dwmac4_get_num_vlan(void __iomem *ioaddr)
1312 {
1313         u32 val, num_vlan;
1314
1315         val = readl(ioaddr + GMAC_HW_FEATURE3);
1316         switch (val & GMAC_HW_FEAT_NRVF) {
1317         case 0:
1318                 num_vlan = 1;
1319                 break;
1320         case 1:
1321                 num_vlan = 4;
1322                 break;
1323         case 2:
1324                 num_vlan = 8;
1325                 break;
1326         case 3:
1327                 num_vlan = 16;
1328                 break;
1329         case 4:
1330                 num_vlan = 24;
1331                 break;
1332         case 5:
1333                 num_vlan = 32;
1334                 break;
1335         default:
1336                 num_vlan = 1;
1337         }
1338
1339         return num_vlan;
1340 }
1341
1342 int dwmac4_setup(struct stmmac_priv *priv)
1343 {
1344         struct mac_device_info *mac = priv->hw;
1345
1346         dev_info(priv->device, "\tDWMAC4/5\n");
1347
1348         priv->dev->priv_flags |= IFF_UNICAST_FLT;
1349         mac->pcsr = priv->ioaddr;
1350         mac->multicast_filter_bins = priv->plat->multicast_filter_bins;
1351         mac->unicast_filter_entries = priv->plat->unicast_filter_entries;
1352         mac->mcast_bits_log2 = 0;
1353
1354         if (mac->multicast_filter_bins)
1355                 mac->mcast_bits_log2 = ilog2(mac->multicast_filter_bins);
1356
1357         mac->link.duplex = GMAC_CONFIG_DM;
1358         mac->link.speed10 = GMAC_CONFIG_PS;
1359         mac->link.speed100 = GMAC_CONFIG_FES | GMAC_CONFIG_PS;
1360         mac->link.speed1000 = 0;
1361         mac->link.speed2500 = GMAC_CONFIG_FES;
1362         mac->link.speed_mask = GMAC_CONFIG_FES | GMAC_CONFIG_PS;
1363         mac->mii.addr = GMAC_MDIO_ADDR;
1364         mac->mii.data = GMAC_MDIO_DATA;
1365         mac->mii.addr_shift = 21;
1366         mac->mii.addr_mask = GENMASK(25, 21);
1367         mac->mii.reg_shift = 16;
1368         mac->mii.reg_mask = GENMASK(20, 16);
1369         mac->mii.clk_csr_shift = 8;
1370         mac->mii.clk_csr_mask = GENMASK(11, 8);
1371         mac->num_vlan = dwmac4_get_num_vlan(priv->ioaddr);
1372
1373         return 0;
1374 }