uboot/drivers/net/fm/eth.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright 2009-2012 Freescale Semiconductor, Inc.
   4 * Copyright 2020 NXP
   5 *      Dave Liu <daveliu@freescale.com>
   6 */
   7#include <common.h>
   8#include <log.h>
   9#include <part.h>
  10#include <asm/io.h>
  11#ifdef CONFIG_DM_ETH
  12#include <dm.h>
  13#include <dm/ofnode.h>
  14#include <linux/compat.h>
  15#include <phy_interface.h>
  16#endif
  17#include <malloc.h>
  18#include <net.h>
  19#include <hwconfig.h>
  20#include <fm_eth.h>
  21#include <fsl_mdio.h>
  22#include <miiphy.h>
  23#include <phy.h>
  24#include <fsl_dtsec.h>
  25#include <fsl_tgec.h>
  26#include <fsl_memac.h>
  27#include <linux/delay.h>
  28
  29#include "fm.h"
  30
  31#ifndef CONFIG_DM_ETH
  32static struct eth_device *devlist[NUM_FM_PORTS];
  33static int num_controllers;
  34#endif
  35
  36#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
  37
  38#define TBIANA_SETTINGS (TBIANA_ASYMMETRIC_PAUSE | TBIANA_SYMMETRIC_PAUSE | \
  39                         TBIANA_FULL_DUPLEX)
  40
  41#define TBIANA_SGMII_ACK 0x4001
  42
  43#define TBICR_SETTINGS (TBICR_ANEG_ENABLE | TBICR_RESTART_ANEG | \
  44                        TBICR_FULL_DUPLEX | TBICR_SPEED1_SET)
  45
  46/* Configure the TBI for SGMII operation */
  47static void dtsec_configure_serdes(struct fm_eth *priv)
  48{
  49#ifdef CONFIG_SYS_FMAN_V3
  50        u32 value;
  51        struct mii_dev bus;
  52        bool sgmii_2500 = (priv->enet_if ==
  53                        PHY_INTERFACE_MODE_2500BASEX) ? true : false;
  54        int i = 0, j;
  55
  56#ifndef CONFIG_DM_ETH
  57        bus.priv = priv->mac->phyregs;
  58#else
  59        bus.priv = priv->pcs_mdio;
  60        bus.read = memac_mdio_read;
  61        bus.write = memac_mdio_write;
  62        bus.reset = memac_mdio_reset;
  63#endif
  64
  65qsgmii_loop:
  66        /* SGMII IF mode + AN enable only for 1G SGMII, not for 2.5G */
  67        if (sgmii_2500)
  68                value = PHY_SGMII_CR_PHY_RESET |
  69                        PHY_SGMII_IF_SPEED_GIGABIT |
  70                        PHY_SGMII_IF_MODE_SGMII;
  71        else
  72                value = PHY_SGMII_IF_MODE_SGMII | PHY_SGMII_IF_MODE_AN;
  73
  74        for (j = 0; j <= 3; j++)
  75                debug("dump PCS reg %#x: %#x\n", j,
  76                      memac_mdio_read(&bus, i, MDIO_DEVAD_NONE, j));
  77
  78        memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x14, value);
  79
  80        /* Dev ability according to SGMII specification */
  81        value = PHY_SGMII_DEV_ABILITY_SGMII;
  82        memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x4, value);
  83
  84        if (sgmii_2500) {
  85                /* Adjust link timer for 2.5G SGMII,
  86                 * 1.6 ms in units of 3.2 ns:
  87                 * 1.6ms / 3.2ns = 5 * 10^5 = 0x7a120.
  88                 */
  89                memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x13, 0x0007);
  90                memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x12, 0xa120);
  91        } else {
  92                /* Adjust link timer for SGMII,
  93                 * 1.6 ms in units of 8 ns:
  94                 * 1.6ms / 8ns = 2 * 10^5 = 0x30d40.
  95                 */
  96                memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x13, 0x0003);
  97                memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x12, 0x0d40);
  98        }
  99
 100        /* Restart AN */
 101        value = PHY_SGMII_CR_DEF_VAL | PHY_SGMII_CR_RESET_AN;
 102        memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0, value);
 103
 104        if ((priv->enet_if == PHY_INTERFACE_MODE_QSGMII) && (i < 3)) {
 105                i++;
 106                goto qsgmii_loop;
 107        }
 108#else
 109        struct dtsec *regs = priv->mac->base;
 110        struct tsec_mii_mng *phyregs = priv->mac->phyregs;
 111
 112        /*
 113         * Access TBI PHY registers at given TSEC register offset as
 114         * opposed to the register offset used for external PHY accesses
 115         */
 116        tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0, TBI_TBICON,
 117                        TBICON_CLK_SELECT);
 118        tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0, TBI_ANA,
 119                        TBIANA_SGMII_ACK);
 120        tsec_local_mdio_write(phyregs, in_be32(&regs->tbipa), 0,
 121                        TBI_CR, TBICR_SETTINGS);
 122#endif
 123}
 124
 125static void dtsec_init_phy(struct fm_eth *fm_eth)
 126{
 127#ifndef CONFIG_SYS_FMAN_V3
 128        struct dtsec *regs = (struct dtsec *)CONFIG_SYS_FSL_FM1_DTSEC1_ADDR;
 129
 130        /* Assign a Physical address to the TBI */
 131        out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
 132#endif
 133
 134        if (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII ||
 135            fm_eth->enet_if == PHY_INTERFACE_MODE_QSGMII ||
 136            fm_eth->enet_if == PHY_INTERFACE_MODE_2500BASEX)
 137                dtsec_configure_serdes(fm_eth);
 138}
 139
 140#ifndef CONFIG_DM_ETH
 141#ifdef CONFIG_PHYLIB
 142static int tgec_is_fibre(struct fm_eth *fm)
 143{
 144        char phyopt[20];
 145
 146        sprintf(phyopt, "fsl_fm%d_xaui_phy", fm->fm_index + 1);
 147
 148        return hwconfig_arg_cmp(phyopt, "xfi");
 149}
 150#endif
 151#endif /* CONFIG_DM_ETH */
 152#endif
 153
 154static u16 muram_readw(u16 *addr)
 155{
 156        ulong base = (ulong)addr & ~0x3UL;
 157        u32 val32 = in_be32((void *)base);
 158        int byte_pos;
 159        u16 ret;
 160
 161        byte_pos = (ulong)addr & 0x3UL;
 162        if (byte_pos)
 163                ret = (u16)(val32 & 0x0000ffff);
 164        else
 165                ret = (u16)((val32 & 0xffff0000) >> 16);
 166
 167        return ret;
 168}
 169
 170static void muram_writew(u16 *addr, u16 val)
 171{
 172        ulong base = (ulong)addr & ~0x3UL;
 173        u32 org32 = in_be32((void *)base);
 174        u32 val32;
 175        int byte_pos;
 176
 177        byte_pos = (ulong)addr & 0x3UL;
 178        if (byte_pos)
 179                val32 = (org32 & 0xffff0000) | val;
 180        else
 181                val32 = (org32 & 0x0000ffff) | ((u32)val << 16);
 182
 183        out_be32((void *)base, val32);
 184}
 185
 186static void bmi_rx_port_disable(struct fm_bmi_rx_port *rx_port)
 187{
 188        int timeout = 1000000;
 189
 190        clrbits_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_EN);
 191
 192        /* wait until the rx port is not busy */
 193        while ((in_be32(&rx_port->fmbm_rst) & FMBM_RST_BSY) && timeout--)
 194                ;
 195        if (!timeout)
 196                printf("%s - timeout\n", __func__);
 197}
 198
 199static void bmi_rx_port_init(struct fm_bmi_rx_port *rx_port)
 200{
 201        /* set BMI to independent mode, Rx port disable */
 202        out_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_IM);
 203        /* clear FOF in IM case */
 204        out_be32(&rx_port->fmbm_rim, 0);
 205        /* Rx frame next engine -RISC */
 206        out_be32(&rx_port->fmbm_rfne, NIA_ENG_RISC | NIA_RISC_AC_IM_RX);
 207        /* Rx command attribute - no order, MR[3] = 1 */
 208        clrbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_ORDER | FMBM_RFCA_MR_MASK);
 209        setbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_MR(4));
 210        /* enable Rx statistic counters */
 211        out_be32(&rx_port->fmbm_rstc, FMBM_RSTC_EN);
 212        /* disable Rx performance counters */
 213        out_be32(&rx_port->fmbm_rpc, 0);
 214}
 215
 216static void bmi_tx_port_disable(struct fm_bmi_tx_port *tx_port)
 217{
 218        int timeout = 1000000;
 219
 220        clrbits_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_EN);
 221
 222        /* wait until the tx port is not busy */
 223        while ((in_be32(&tx_port->fmbm_tst) & FMBM_TST_BSY) && timeout--)
 224                ;
 225        if (!timeout)
 226                printf("%s - timeout\n", __func__);
 227}
 228
 229static void bmi_tx_port_init(struct fm_bmi_tx_port *tx_port)
 230{
 231        /* set BMI to independent mode, Tx port disable */
 232        out_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_IM);
 233        /* Tx frame next engine -RISC */
 234        out_be32(&tx_port->fmbm_tfne, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
 235        out_be32(&tx_port->fmbm_tfene, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
 236        /* Tx command attribute - no order, MR[3] = 1 */
 237        clrbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_ORDER | FMBM_TFCA_MR_MASK);
 238        setbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_MR(4));
 239        /* enable Tx statistic counters */
 240        out_be32(&tx_port->fmbm_tstc, FMBM_TSTC_EN);
 241        /* disable Tx performance counters */
 242        out_be32(&tx_port->fmbm_tpc, 0);
 243}
 244
 245static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth)
 246{
 247        struct fm_port_global_pram *pram;
 248        u32 pram_page_offset;
 249        void *rx_bd_ring_base;
 250        void *rx_buf_pool;
 251        u32 bd_ring_base_lo, bd_ring_base_hi;
 252        u32 buf_lo, buf_hi;
 253        struct fm_port_bd *rxbd;
 254        struct fm_port_qd *rxqd;
 255        struct fm_bmi_rx_port *bmi_rx_port = fm_eth->rx_port;
 256        int i;
 257
 258        /* alloc global parameter ram at MURAM */
 259        pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
 260                FM_PRAM_SIZE, FM_PRAM_ALIGN);
 261        if (!pram) {
 262                printf("%s: No muram for Rx global parameter\n", __func__);
 263                return -ENOMEM;
 264        }
 265
 266        fm_eth->rx_pram = pram;
 267
 268        /* parameter page offset to MURAM */
 269        pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
 270
 271        /* enable global mode- snooping data buffers and BDs */
 272        out_be32(&pram->mode, PRAM_MODE_GLOBAL);
 273
 274        /* init the Rx queue descriptor pionter */
 275        out_be32(&pram->rxqd_ptr, pram_page_offset + 0x20);
 276
 277        /* set the max receive buffer length, power of 2 */
 278        muram_writew(&pram->mrblr, MAX_RXBUF_LOG2);
 279
 280        /* alloc Rx buffer descriptors from main memory */
 281        rx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
 282                        * RX_BD_RING_SIZE);
 283        if (!rx_bd_ring_base)
 284                return -ENOMEM;
 285
 286        memset(rx_bd_ring_base, 0, sizeof(struct fm_port_bd)
 287                        * RX_BD_RING_SIZE);
 288
 289        /* alloc Rx buffer from main memory */
 290        rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE);
 291        if (!rx_buf_pool) {
 292                free(rx_bd_ring_base);
 293                return -ENOMEM;
 294        }
 295
 296        memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE);
 297        debug("%s: rx_buf_pool = %p\n", __func__, rx_buf_pool);
 298
 299        /* save them to fm_eth */
 300        fm_eth->rx_bd_ring = rx_bd_ring_base;
 301        fm_eth->cur_rxbd = rx_bd_ring_base;
 302        fm_eth->rx_buf = rx_buf_pool;
 303
 304        /* init Rx BDs ring */
 305        rxbd = (struct fm_port_bd *)rx_bd_ring_base;
 306        for (i = 0; i < RX_BD_RING_SIZE; i++) {
 307                muram_writew(&rxbd->status, RxBD_EMPTY);
 308                muram_writew(&rxbd->len, 0);
 309                buf_hi = upper_32_bits(virt_to_phys(rx_buf_pool +
 310                                        i * MAX_RXBUF_LEN));
 311                buf_lo = lower_32_bits(virt_to_phys(rx_buf_pool +
 312                                        i * MAX_RXBUF_LEN));
 313                muram_writew(&rxbd->buf_ptr_hi, (u16)buf_hi);
 314                out_be32(&rxbd->buf_ptr_lo, buf_lo);
 315                rxbd++;
 316        }
 317
 318        /* set the Rx queue descriptor */
 319        rxqd = &pram->rxqd;
 320        muram_writew(&rxqd->gen, 0);
 321        bd_ring_base_hi = upper_32_bits(virt_to_phys(rx_bd_ring_base));
 322        bd_ring_base_lo = lower_32_bits(virt_to_phys(rx_bd_ring_base));
 323        muram_writew(&rxqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
 324        out_be32(&rxqd->bd_ring_base_lo, bd_ring_base_lo);
 325        muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd)
 326                        * RX_BD_RING_SIZE);
 327        muram_writew(&rxqd->offset_in, 0);
 328        muram_writew(&rxqd->offset_out, 0);
 329
 330        /* set IM parameter ram pointer to Rx Frame Queue ID */
 331        out_be32(&bmi_rx_port->fmbm_rfqid, pram_page_offset);
 332
 333        return 0;
 334}
 335
 336static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth)
 337{
 338        struct fm_port_global_pram *pram;
 339        u32 pram_page_offset;
 340        void *tx_bd_ring_base;
 341        u32 bd_ring_base_lo, bd_ring_base_hi;
 342        struct fm_port_bd *txbd;
 343        struct fm_port_qd *txqd;
 344        struct fm_bmi_tx_port *bmi_tx_port = fm_eth->tx_port;
 345        int i;
 346
 347        /* alloc global parameter ram at MURAM */
 348        pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
 349                FM_PRAM_SIZE, FM_PRAM_ALIGN);
 350        if (!pram) {
 351                printf("%s: No muram for Tx global parameter\n", __func__);
 352                return -ENOMEM;
 353        }
 354        fm_eth->tx_pram = pram;
 355
 356        /* parameter page offset to MURAM */
 357        pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
 358
 359        /* enable global mode- snooping data buffers and BDs */
 360        out_be32(&pram->mode, PRAM_MODE_GLOBAL);
 361
 362        /* init the Tx queue descriptor pionter */
 363        out_be32(&pram->txqd_ptr, pram_page_offset + 0x40);
 364
 365        /* alloc Tx buffer descriptors from main memory */
 366        tx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
 367                        * TX_BD_RING_SIZE);
 368        if (!tx_bd_ring_base)
 369                return -ENOMEM;
 370
 371        memset(tx_bd_ring_base, 0, sizeof(struct fm_port_bd)
 372                        * TX_BD_RING_SIZE);
 373        /* save it to fm_eth */
 374        fm_eth->tx_bd_ring = tx_bd_ring_base;
 375        fm_eth->cur_txbd = tx_bd_ring_base;
 376
 377        /* init Tx BDs ring */
 378        txbd = (struct fm_port_bd *)tx_bd_ring_base;
 379        for (i = 0; i < TX_BD_RING_SIZE; i++) {
 380                muram_writew(&txbd->status, TxBD_LAST);
 381                muram_writew(&txbd->len, 0);
 382                muram_writew(&txbd->buf_ptr_hi, 0);
 383                out_be32(&txbd->buf_ptr_lo, 0);
 384                txbd++;
 385        }
 386
 387        /* set the Tx queue decriptor */
 388        txqd = &pram->txqd;
 389        bd_ring_base_hi = upper_32_bits(virt_to_phys(tx_bd_ring_base));
 390        bd_ring_base_lo = lower_32_bits(virt_to_phys(tx_bd_ring_base));
 391        muram_writew(&txqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
 392        out_be32(&txqd->bd_ring_base_lo, bd_ring_base_lo);
 393        muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd)
 394                        * TX_BD_RING_SIZE);
 395        muram_writew(&txqd->offset_in, 0);
 396        muram_writew(&txqd->offset_out, 0);
 397
 398        /* set IM parameter ram pointer to Tx Confirmation Frame Queue ID */
 399        out_be32(&bmi_tx_port->fmbm_tcfqid, pram_page_offset);
 400
 401        return 0;
 402}
 403
 404static int fm_eth_init(struct fm_eth *fm_eth)
 405{
 406        int ret;
 407
 408        ret = fm_eth_rx_port_parameter_init(fm_eth);
 409        if (ret)
 410                return ret;
 411
 412        ret = fm_eth_tx_port_parameter_init(fm_eth);
 413        if (ret)
 414                return ret;
 415
 416        return 0;
 417}
 418
 419static int fm_eth_startup(struct fm_eth *fm_eth)
 420{
 421        struct fsl_enet_mac *mac;
 422        int ret;
 423
 424        mac = fm_eth->mac;
 425
 426        /* Rx/TxBDs, Rx/TxQDs, Rx buff and parameter ram init */
 427        ret = fm_eth_init(fm_eth);
 428        if (ret)
 429                return ret;
 430        /* setup the MAC controller */
 431        mac->init_mac(mac);
 432
 433        /* For some reason we need to set SPEED_100 */
 434        if (((fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII) ||
 435             (fm_eth->enet_if == PHY_INTERFACE_MODE_2500BASEX) ||
 436             (fm_eth->enet_if == PHY_INTERFACE_MODE_QSGMII)) &&
 437              mac->set_if_mode)
 438                mac->set_if_mode(mac, fm_eth->enet_if, SPEED_100);
 439
 440        /* init bmi rx port, IM mode and disable */
 441        bmi_rx_port_init(fm_eth->rx_port);
 442        /* init bmi tx port, IM mode and disable */
 443        bmi_tx_port_init(fm_eth->tx_port);
 444
 445        return 0;
 446}
 447
 448static void fmc_tx_port_graceful_stop_enable(struct fm_eth *fm_eth)
 449{
 450        struct fm_port_global_pram *pram;
 451
 452        pram = fm_eth->tx_pram;
 453        /* graceful stop transmission of frames */
 454        setbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
 455        sync();
 456}
 457
 458static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
 459{
 460        struct fm_port_global_pram *pram;
 461
 462        pram = fm_eth->tx_pram;
 463        /* re-enable transmission of frames */
 464        clrbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
 465        sync();
 466}
 467
 468#ifndef CONFIG_DM_ETH
 469static int fm_eth_open(struct eth_device *dev, struct bd_info *bd)
 470#else
 471static int fm_eth_open(struct udevice *dev)
 472#endif
 473{
 474#ifndef CONFIG_DM_ETH
 475        struct fm_eth *fm_eth = dev->priv;
 476#else
 477        struct eth_pdata *pdata = dev_get_plat(dev);
 478        struct fm_eth *fm_eth = dev_get_priv(dev);
 479#endif
 480        unsigned char *enetaddr;
 481        struct fsl_enet_mac *mac;
 482#ifdef CONFIG_PHYLIB
 483        int ret;
 484#endif
 485
 486        mac = fm_eth->mac;
 487
 488#ifndef CONFIG_DM_ETH
 489        enetaddr = &dev->enetaddr[0];
 490#else
 491        enetaddr = pdata->enetaddr;
 492#endif
 493
 494        /* setup the MAC address */
 495        if (enetaddr[0] & 0x01) {
 496                printf("%s: MacAddress is multicast address\n", __func__);
 497                enetaddr[0] = 0;
 498                enetaddr[5] = fm_eth->num;
 499        }
 500        mac->set_mac_addr(mac, enetaddr);
 501
 502        /* enable bmi Rx port */
 503        setbits_be32(&fm_eth->rx_port->fmbm_rcfg, FMBM_RCFG_EN);
 504        /* enable MAC rx/tx port */
 505        mac->enable_mac(mac);
 506        /* enable bmi Tx port */
 507        setbits_be32(&fm_eth->tx_port->fmbm_tcfg, FMBM_TCFG_EN);
 508        /* re-enable transmission of frame */
 509        fmc_tx_port_graceful_stop_disable(fm_eth);
 510
 511#ifdef CONFIG_PHYLIB
 512        if (fm_eth->phydev) {
 513                ret = phy_startup(fm_eth->phydev);
 514                if (ret) {
 515#ifndef CONFIG_DM_ETH
 516                        printf("%s: Could not initialize\n",
 517                               fm_eth->phydev->dev->name);
 518#else
 519                        printf("%s: Could not initialize\n", dev->name);
 520#endif
 521                        return ret;
 522                }
 523        } else {
 524                return 0;
 525        }
 526#else
 527        fm_eth->phydev->speed = SPEED_1000;
 528        fm_eth->phydev->link = 1;
 529        fm_eth->phydev->duplex = DUPLEX_FULL;
 530#endif
 531
 532        /* set the MAC-PHY mode */
 533        mac->set_if_mode(mac, fm_eth->enet_if, fm_eth->phydev->speed);
 534        debug("MAC IF mode %d, speed %d, link %d\n", fm_eth->enet_if,
 535              fm_eth->phydev->speed, fm_eth->phydev->link);
 536
 537        if (!fm_eth->phydev->link)
 538                printf("%s: No link.\n", fm_eth->phydev->dev->name);
 539
 540        return fm_eth->phydev->link ? 0 : -1;
 541}
 542
 543#ifndef CONFIG_DM_ETH
 544static void fm_eth_halt(struct eth_device *dev)
 545#else
 546static void fm_eth_halt(struct udevice *dev)
 547#endif
 548{
 549        struct fm_eth *fm_eth;
 550        struct fsl_enet_mac *mac;
 551
 552#ifndef CONFIG_DM_ETH
 553        fm_eth = (struct fm_eth *)dev->priv;
 554#else
 555        fm_eth = dev_get_priv(dev);
 556#endif
 557        mac = fm_eth->mac;
 558
 559        /* graceful stop the transmission of frames */
 560        fmc_tx_port_graceful_stop_enable(fm_eth);
 561        /* disable bmi Tx port */
 562        bmi_tx_port_disable(fm_eth->tx_port);
 563        /* disable MAC rx/tx port */
 564        mac->disable_mac(mac);
 565        /* disable bmi Rx port */
 566        bmi_rx_port_disable(fm_eth->rx_port);
 567
 568#ifdef CONFIG_PHYLIB
 569        if (fm_eth->phydev)
 570                phy_shutdown(fm_eth->phydev);
 571#endif
 572}
 573
 574#ifndef CONFIG_DM_ETH
 575static int fm_eth_send(struct eth_device *dev, void *buf, int len)
 576#else
 577static int fm_eth_send(struct udevice *dev, void *buf, int len)
 578#endif
 579{
 580        struct fm_eth *fm_eth;
 581        struct fm_port_global_pram *pram;
 582        struct fm_port_bd *txbd, *txbd_base;
 583        u16 offset_in;
 584        int i;
 585
 586#ifndef CONFIG_DM_ETH
 587        fm_eth = (struct fm_eth *)dev->priv;
 588#else
 589        fm_eth = dev_get_priv(dev);
 590#endif
 591        pram = fm_eth->tx_pram;
 592        txbd = fm_eth->cur_txbd;
 593
 594        /* find one empty TxBD */
 595        for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
 596                udelay(100);
 597                if (i > 0x1000) {
 598                        printf("%s: Tx buffer not ready, txbd->status = 0x%x\n",
 599                               dev->name, muram_readw(&txbd->status));
 600                        return 0;
 601                }
 602        }
 603        /* setup TxBD */
 604        muram_writew(&txbd->buf_ptr_hi, (u16)upper_32_bits(virt_to_phys(buf)));
 605        out_be32(&txbd->buf_ptr_lo, lower_32_bits(virt_to_phys(buf)));
 606        muram_writew(&txbd->len, len);
 607        sync();
 608        muram_writew(&txbd->status, TxBD_READY | TxBD_LAST);
 609        sync();
 610
 611        /* update TxQD, let RISC to send the packet */
 612        offset_in = muram_readw(&pram->txqd.offset_in);
 613        offset_in += sizeof(struct fm_port_bd);
 614        if (offset_in >= muram_readw(&pram->txqd.bd_ring_size))
 615                offset_in = 0;
 616        muram_writew(&pram->txqd.offset_in, offset_in);
 617        sync();
 618
 619        /* wait for buffer to be transmitted */
 620        for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
 621                udelay(100);
 622                if (i > 0x10000) {
 623                        printf("%s: Tx error, txbd->status = 0x%x\n",
 624                               dev->name, muram_readw(&txbd->status));
 625                        return 0;
 626                }
 627        }
 628
 629        /* advance the TxBD */
 630        txbd++;
 631        txbd_base = (struct fm_port_bd *)fm_eth->tx_bd_ring;
 632        if (txbd >= (txbd_base + TX_BD_RING_SIZE))
 633                txbd = txbd_base;
 634        /* update current txbd */
 635        fm_eth->cur_txbd = (void *)txbd;
 636
 637        return 1;
 638}
 639
 640static struct fm_port_bd *fm_eth_free_one(struct fm_eth *fm_eth,
 641                                          struct fm_port_bd *rxbd)
 642{
 643        struct fm_port_global_pram *pram;
 644        struct fm_port_bd *rxbd_base;
 645        u16 offset_out;
 646
 647        pram = fm_eth->rx_pram;
 648
 649        /* clear the RxBDs */
 650        muram_writew(&rxbd->status, RxBD_EMPTY);
 651        muram_writew(&rxbd->len, 0);
 652        sync();
 653
 654        /* advance RxBD */
 655        rxbd++;
 656        rxbd_base = (struct fm_port_bd *)fm_eth->rx_bd_ring;
 657        if (rxbd >= (rxbd_base + RX_BD_RING_SIZE))
 658                rxbd = rxbd_base;
 659
 660        /* update RxQD */
 661        offset_out = muram_readw(&pram->rxqd.offset_out);
 662        offset_out += sizeof(struct fm_port_bd);
 663        if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
 664                offset_out = 0;
 665        muram_writew(&pram->rxqd.offset_out, offset_out);
 666        sync();
 667
 668        return rxbd;
 669}
 670
 671#ifndef CONFIG_DM_ETH
 672static int fm_eth_recv(struct eth_device *dev)
 673#else
 674static int fm_eth_recv(struct udevice *dev, int flags, uchar **packetp)
 675#endif
 676{
 677        struct fm_eth *fm_eth;
 678        struct fm_port_bd *rxbd;
 679        u32 buf_lo, buf_hi;
 680        u16 status, len;
 681        int ret = -1;
 682        u8 *data;
 683
 684#ifndef CONFIG_DM_ETH
 685        fm_eth = (struct fm_eth *)dev->priv;
 686#else
 687        fm_eth = dev_get_priv(dev);
 688#endif
 689        rxbd = fm_eth->cur_rxbd;
 690        status = muram_readw(&rxbd->status);
 691
 692        while (!(status & RxBD_EMPTY)) {
 693                if (!(status & RxBD_ERROR)) {
 694                        buf_hi = muram_readw(&rxbd->buf_ptr_hi);
 695                        buf_lo = in_be32(&rxbd->buf_ptr_lo);
 696                        data = (u8 *)((ulong)(buf_hi << 16) << 16 | buf_lo);
 697                        len = muram_readw(&rxbd->len);
 698#ifndef CONFIG_DM_ETH
 699                        net_process_received_packet(data, len);
 700#else
 701                        *packetp = data;
 702                        return len;
 703#endif
 704                } else {
 705                        printf("%s: Rx error\n", dev->name);
 706                        ret = 0;
 707                }
 708
 709                /* free current bd, advance to next one */
 710                rxbd = fm_eth_free_one(fm_eth, rxbd);
 711
 712                /* read next status */
 713                status = muram_readw(&rxbd->status);
 714        }
 715        fm_eth->cur_rxbd = (void *)rxbd;
 716
 717        return ret;
 718}
 719
 720#ifdef CONFIG_DM_ETH
 721static int fm_eth_free_pkt(struct udevice *dev, uchar *packet, int length)
 722{
 723        struct fm_eth *fm_eth = (struct fm_eth *)dev_get_priv(dev);
 724
 725        fm_eth->cur_rxbd = fm_eth_free_one(fm_eth, fm_eth->cur_rxbd);
 726
 727        return 0;
 728}
 729#endif /* CONFIG_DM_ETH */
 730
 731#ifndef CONFIG_DM_ETH
 732static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg)
 733{
 734        struct fsl_enet_mac *mac;
 735        int num;
 736        void *base, *phyregs = NULL;
 737
 738        num = fm_eth->num;
 739
 740#ifdef CONFIG_SYS_FMAN_V3
 741#ifndef CONFIG_FSL_FM_10GEC_REGULAR_NOTATION
 742        if (fm_eth->type == FM_ETH_10G_E) {
 743                /* 10GEC1/10GEC2 use mEMAC9/mEMAC10 on T2080/T4240.
 744                 * 10GEC3/10GEC4 use mEMAC1/mEMAC2 on T2080.
 745                 * 10GEC1 uses mEMAC1 on T1024.
 746                 * so it needs to change the num.
 747                 */
 748                if (fm_eth->num >= 2)
 749                        num -= 2;
 750                else
 751                        num += 8;
 752        }
 753#endif
 754        base = &reg->memac[num].fm_memac;
 755        phyregs = &reg->memac[num].fm_memac_mdio;
 756#else
 757        /* Get the mac registers base address */
 758        if (fm_eth->type == FM_ETH_1G_E) {
 759                base = &reg->mac_1g[num].fm_dtesc;
 760                phyregs = &reg->mac_1g[num].fm_mdio.miimcfg;
 761        } else {
 762                base = &reg->mac_10g[num].fm_10gec;
 763                phyregs = &reg->mac_10g[num].fm_10gec_mdio;
 764        }
 765#endif
 766
 767        /* alloc mac controller */
 768        mac = malloc(sizeof(struct fsl_enet_mac));
 769        if (!mac)
 770                return -ENOMEM;
 771        memset(mac, 0, sizeof(struct fsl_enet_mac));
 772
 773        /* save the mac to fm_eth struct */
 774        fm_eth->mac = mac;
 775
 776#ifdef CONFIG_SYS_FMAN_V3
 777        init_memac(mac, base, phyregs, MAX_RXBUF_LEN);
 778#else
 779        if (fm_eth->type == FM_ETH_1G_E)
 780                init_dtsec(mac, base, phyregs, MAX_RXBUF_LEN);
 781        else
 782                init_tgec(mac, base, phyregs, MAX_RXBUF_LEN);
 783#endif
 784
 785        return 0;
 786}
 787#else /* CONFIG_DM_ETH */
 788static int fm_eth_init_mac(struct fm_eth *fm_eth, void *reg)
 789{
 790#ifndef CONFIG_SYS_FMAN_V3
 791        void *mdio;
 792#endif
 793
 794        fm_eth->mac = kzalloc(sizeof(*fm_eth->mac), GFP_KERNEL);
 795        if (!fm_eth->mac)
 796                return -ENOMEM;
 797
 798#ifndef CONFIG_SYS_FMAN_V3
 799        mdio = fman_mdio(fm_eth->dev->parent, fm_eth->mac_type, fm_eth->num);
 800        debug("MDIO %d @ %p\n", fm_eth->num, mdio);
 801#endif
 802
 803        switch (fm_eth->mac_type) {
 804#ifdef CONFIG_SYS_FMAN_V3
 805        case FM_MEMAC:
 806                init_memac(fm_eth->mac, reg, NULL, MAX_RXBUF_LEN);
 807                break;
 808#else
 809        case FM_DTSEC:
 810                init_dtsec(fm_eth->mac, reg, mdio, MAX_RXBUF_LEN);
 811                break;
 812        case FM_TGEC:
 813                init_tgec(fm_eth->mac, reg, mdio, MAX_RXBUF_LEN);
 814                break;
 815#endif
 816        }
 817
 818        return 0;
 819}
 820#endif /* CONFIG_DM_ETH */
 821
 822static int init_phy(struct fm_eth *fm_eth)
 823{
 824#ifdef CONFIG_PHYLIB
 825        u32 supported = PHY_GBIT_FEATURES;
 826#ifndef CONFIG_DM_ETH
 827        struct phy_device *phydev = NULL;
 828#endif
 829
 830        if (fm_eth->type == FM_ETH_10G_E)
 831                supported = PHY_10G_FEATURES;
 832        if (fm_eth->enet_if == PHY_INTERFACE_MODE_2500BASEX)
 833                supported |= SUPPORTED_2500baseX_Full;
 834#endif
 835
 836        if (fm_eth->type == FM_ETH_1G_E)
 837                dtsec_init_phy(fm_eth);
 838
 839#ifdef CONFIG_DM_ETH
 840#ifdef CONFIG_PHYLIB
 841#ifdef CONFIG_DM_MDIO
 842        fm_eth->phydev = dm_eth_phy_connect(fm_eth->dev);
 843        if (!fm_eth->phydev)
 844                return -ENODEV;
 845#endif
 846        fm_eth->phydev->advertising &= supported;
 847        fm_eth->phydev->supported &= supported;
 848
 849        phy_config(fm_eth->phydev);
 850#endif
 851#else /* CONFIG_DM_ETH */
 852#ifdef CONFIG_PHYLIB
 853        if (fm_eth->bus) {
 854                phydev = phy_connect(fm_eth->bus, fm_eth->phyaddr, fm_eth->dev,
 855                                     fm_eth->enet_if);
 856                if (!phydev) {
 857                        printf("Failed to connect\n");
 858                        return -1;
 859                }
 860        } else {
 861                return 0;
 862        }
 863
 864        if (fm_eth->type == FM_ETH_1G_E) {
 865                supported = (SUPPORTED_10baseT_Half |
 866                                SUPPORTED_10baseT_Full |
 867                                SUPPORTED_100baseT_Half |
 868                                SUPPORTED_100baseT_Full |
 869                                SUPPORTED_1000baseT_Full);
 870        } else {
 871                supported = SUPPORTED_10000baseT_Full;
 872
 873                if (tgec_is_fibre(fm_eth))
 874                        phydev->port = PORT_FIBRE;
 875        }
 876
 877        phydev->supported &= supported;
 878        phydev->advertising = phydev->supported;
 879
 880        fm_eth->phydev = phydev;
 881
 882        phy_config(phydev);
 883#endif
 884#endif /* CONFIG_DM_ETH */
 885        return 0;
 886}
 887
 888#ifndef CONFIG_DM_ETH
 889int fm_eth_initialize(struct ccsr_fman *reg, struct fm_eth_info *info)
 890{
 891        struct eth_device *dev;
 892        struct fm_eth *fm_eth;
 893        int i, num = info->num;
 894        int ret;
 895
 896        /* alloc eth device */
 897        dev = (struct eth_device *)malloc(sizeof(struct eth_device));
 898        if (!dev)
 899                return -ENOMEM;
 900        memset(dev, 0, sizeof(struct eth_device));
 901
 902        /* alloc the FMan ethernet private struct */
 903        fm_eth = (struct fm_eth *)malloc(sizeof(struct fm_eth));
 904        if (!fm_eth)
 905                return -ENOMEM;
 906        memset(fm_eth, 0, sizeof(struct fm_eth));
 907
 908        /* save off some things we need from the info struct */
 909        fm_eth->fm_index = info->index - 1; /* keep as 0 based for muram */
 910        fm_eth->num = num;
 911        fm_eth->type = info->type;
 912
 913        fm_eth->rx_port = (void *)&reg->port[info->rx_port_id - 1].fm_bmi;
 914        fm_eth->tx_port = (void *)&reg->port[info->tx_port_id - 1].fm_bmi;
 915
 916        /* set the ethernet max receive length */
 917        fm_eth->max_rx_len = MAX_RXBUF_LEN;
 918
 919        /* init global mac structure */
 920        ret = fm_eth_init_mac(fm_eth, reg);
 921        if (ret)
 922                return ret;
 923
 924        /* keep same as the manual, we call FMAN1, FMAN2, DTSEC1, DTSEC2, etc */
 925        if (fm_eth->type == FM_ETH_1G_E)
 926                sprintf(dev->name, "FM%d@DTSEC%d", info->index, num + 1);
 927        else
 928                sprintf(dev->name, "FM%d@TGEC%d", info->index, num + 1);
 929
 930        devlist[num_controllers++] = dev;
 931        dev->iobase = 0;
 932        dev->priv = (void *)fm_eth;
 933        dev->init = fm_eth_open;
 934        dev->halt = fm_eth_halt;
 935        dev->send = fm_eth_send;
 936        dev->recv = fm_eth_recv;
 937        fm_eth->dev = dev;
 938        fm_eth->bus = info->bus;
 939        fm_eth->phyaddr = info->phy_addr;
 940        fm_eth->enet_if = info->enet_if;
 941
 942        /* startup the FM im */
 943        ret = fm_eth_startup(fm_eth);
 944        if (ret)
 945                return ret;
 946
 947        init_phy(fm_eth);
 948
 949        /* clear the ethernet address */
 950        for (i = 0; i < 6; i++)
 951                dev->enetaddr[i] = 0;
 952        eth_register(dev);
 953
 954        return 0;
 955}
 956#else /* CONFIG_DM_ETH */
 957#ifdef CONFIG_PHYLIB
 958phy_interface_t fman_read_sys_if(struct udevice *dev)
 959{
 960        const char *if_str;
 961
 962        if_str = ofnode_read_string(dev_ofnode(dev), "phy-connection-type");
 963        debug("MAC system interface mode %s\n", if_str);
 964
 965        return phy_get_interface_by_name(if_str);
 966}
 967#endif
 968
 969static int fm_eth_bind(struct udevice *dev)
 970{
 971        char mac_name[11];
 972        u32 fm, num;
 973
 974        if (ofnode_read_u32(ofnode_get_parent(dev_ofnode(dev)), "cell-index", &fm)) {
 975                printf("FMan node property cell-index missing\n");
 976                return -EINVAL;
 977        }
 978
 979        if (dev && dev_read_u32(dev, "cell-index", &num)) {
 980                printf("FMan MAC node property cell-index missing\n");
 981                return -EINVAL;
 982        }
 983
 984        sprintf(mac_name, "fm%d-mac%d", fm + 1, num + 1);
 985        device_set_name(dev, mac_name);
 986
 987        debug("%s - binding %s\n", __func__, mac_name);
 988
 989        return 0;
 990}
 991
 992static struct udevice *fm_get_internal_mdio(struct udevice *dev)
 993{
 994        struct ofnode_phandle_args phandle = {.node = ofnode_null()};
 995        struct udevice *mdiodev;
 996
 997        if (dev_read_phandle_with_args(dev, "pcsphy-handle", NULL,
 998                                       0, 0, &phandle) ||
 999            !ofnode_valid(phandle.node)) {
1000                if (dev_read_phandle_with_args(dev, "tbi-handle", NULL,
1001                                               0, 0, &phandle) ||
1002                    !ofnode_valid(phandle.node)) {
1003                        printf("Issue reading pcsphy-handle/tbi-handle for MAC %s\n",
1004                               dev->name);
1005                        return NULL;
1006                }
1007        }
1008
1009        if (uclass_get_device_by_ofnode(UCLASS_MDIO,
1010                                        ofnode_get_parent(phandle.node),
1011                                        &mdiodev)) {
1012                printf("can't find MDIO bus for node %s\n",
1013                       ofnode_get_name(ofnode_get_parent(phandle.node)));
1014                return NULL;
1015        }
1016        debug("Found internal MDIO bus %p\n", mdiodev);
1017
1018        return mdiodev;
1019}
1020
1021static int fm_eth_probe(struct udevice *dev)
1022{
1023        struct fm_eth *fm_eth = (struct fm_eth *)dev_get_priv(dev);
1024        struct ofnode_phandle_args args;
1025        void *reg;
1026        int ret, index;
1027
1028        debug("%s enter for dev %p fm_eth %p - %s\n", __func__, dev, fm_eth,
1029              (dev) ? dev->name : "-");
1030
1031        if (fm_eth->dev) {
1032                printf("%s already probed, exit\n", (dev) ? dev->name : "-");
1033                return 0;
1034        }
1035
1036        fm_eth->dev = dev;
1037        fm_eth->fm_index = fman_id(dev->parent);
1038        reg = (void *)(uintptr_t)dev_read_addr(dev);
1039        fm_eth->mac_type = dev_get_driver_data(dev);
1040#ifdef CONFIG_PHYLIB
1041        fm_eth->enet_if = fman_read_sys_if(dev);
1042#else
1043        fm_eth->enet_if = PHY_INTERFACE_MODE_SGMII;
1044        printf("%s: warning - unable to determine interface type\n", __func__);
1045#endif
1046        switch (fm_eth->mac_type) {
1047#ifndef CONFIG_SYS_FMAN_V3
1048        case FM_TGEC:
1049                fm_eth->type = FM_ETH_10G_E;
1050                break;
1051        case FM_DTSEC:
1052#else
1053        case FM_MEMAC:
1054                /* default to 1G, 10G is indicated by port property in dts */
1055#endif
1056                fm_eth->type = FM_ETH_1G_E;
1057                break;
1058        }
1059
1060        if (dev_read_u32(dev, "cell-index", &fm_eth->num)) {
1061                printf("FMan MAC node property cell-index missing\n");
1062                return -EINVAL;
1063        }
1064
1065        if (dev_read_phandle_with_args(dev, "fsl,fman-ports", NULL,
1066                                       0, 0, &args))
1067                goto ports_ref_failure;
1068        index = ofnode_read_u32_default(args.node, "cell-index", 0);
1069        if (index <= 0)
1070                goto ports_ref_failure;
1071        fm_eth->rx_port = fman_port(dev->parent, index);
1072
1073        if (ofnode_read_bool(args.node, "fsl,fman-10g-port"))
1074                fm_eth->type = FM_ETH_10G_E;
1075
1076        if (dev_read_phandle_with_args(dev, "fsl,fman-ports", NULL,
1077                                       0, 1, &args))
1078                goto ports_ref_failure;
1079        index = ofnode_read_u32_default(args.node, "cell-index", 0);
1080        if (index <= 0)
1081                goto ports_ref_failure;
1082        fm_eth->tx_port = fman_port(dev->parent, index);
1083
1084        /* set the ethernet max receive length */
1085        fm_eth->max_rx_len = MAX_RXBUF_LEN;
1086
1087        switch (fm_eth->enet_if) {
1088        case PHY_INTERFACE_MODE_QSGMII:
1089                /* all PCS blocks are accessed on one controller */
1090                if (fm_eth->num != 0)
1091                        break;
1092        case PHY_INTERFACE_MODE_SGMII:
1093        case PHY_INTERFACE_MODE_2500BASEX:
1094                fm_eth->pcs_mdio = fm_get_internal_mdio(dev);
1095                break;
1096        default:
1097                break;
1098        }
1099
1100        /* init global mac structure */
1101        ret = fm_eth_init_mac(fm_eth, reg);
1102        if (ret)
1103                return ret;
1104
1105        /* startup the FM im */
1106        ret = fm_eth_startup(fm_eth);
1107
1108        if (!ret)
1109                ret = init_phy(fm_eth);
1110
1111        return ret;
1112
1113ports_ref_failure:
1114        printf("Issue reading fsl,fman-ports for MAC %s\n", dev->name);
1115        return -ENOENT;
1116}
1117
1118static int fm_eth_remove(struct udevice *dev)
1119{
1120        return 0;
1121}
1122
1123static const struct eth_ops fm_eth_ops = {
1124        .start = fm_eth_open,
1125        .send = fm_eth_send,
1126        .recv = fm_eth_recv,
1127        .free_pkt = fm_eth_free_pkt,
1128        .stop = fm_eth_halt,
1129};
1130
1131static const struct udevice_id fm_eth_ids[] = {
1132#ifdef CONFIG_SYS_FMAN_V3
1133        { .compatible = "fsl,fman-memac", .data = FM_MEMAC },
1134#else
1135        { .compatible = "fsl,fman-dtsec", .data = FM_DTSEC },
1136        { .compatible = "fsl,fman-xgec", .data = FM_TGEC },
1137#endif
1138        {}
1139};
1140
1141U_BOOT_DRIVER(eth_fman) = {
1142        .name = "eth_fman",
1143        .id = UCLASS_ETH,
1144        .of_match = fm_eth_ids,
1145        .bind = fm_eth_bind,
1146        .probe = fm_eth_probe,
1147        .remove = fm_eth_remove,
1148        .ops = &fm_eth_ops,
1149        .priv_auto      = sizeof(struct fm_eth),
1150        .plat_auto      = sizeof(struct eth_pdata),
1151        .flags = DM_FLAG_ALLOC_PRIV_DMA,
1152};
1153#endif /* CONFIG_DM_ETH */
1154