uboot/board/gdsys/mpc8308/strider.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2014
   4 * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
   5 */
   6
   7#include <common.h>
   8#include <env.h>
   9#include <flash.h>
  10#include <hwconfig.h>
  11#include <i2c.h>
  12#include <init.h>
  13#include <spi.h>
  14#include <linux/bitops.h>
  15#include <linux/delay.h>
  16#include <linux/libfdt.h>
  17#include <fdt_support.h>
  18#include <pci.h>
  19#include <mpc83xx.h>
  20#include <fsl_esdhc.h>
  21#include <asm/io.h>
  22#include <asm/fsl_serdes.h>
  23#include <asm/fsl_mpc83xx_serdes.h>
  24
  25#include "mpc8308.h"
  26
  27#include <gdsys_fpga.h>
  28
  29#include "../common/adv7611.h"
  30#include "../common/ch7301.h"
  31#include "../common/dp501.h"
  32#include "../common/ioep-fpga.h"
  33#include "../common/mclink.h"
  34#include "../common/osd.h"
  35#include "../common/phy.h"
  36#include "../common/fanctrl.h"
  37
  38#include <pca953x.h>
  39#include <pca9698.h>
  40
  41#include <miiphy.h>
  42
  43#define MAX_MUX_CHANNELS 2
  44
  45enum {
  46        MCFPGA_DONE = 1 << 0,
  47        MCFPGA_INIT_N = 1 << 1,
  48        MCFPGA_PROGRAM_N = 1 << 2,
  49        MCFPGA_UPDATE_ENABLE_N = 1 << 3,
  50        MCFPGA_RESET_N = 1 << 4,
  51};
  52
  53enum {
  54        GPIO_MDC = 1 << 14,
  55        GPIO_MDIO = 1 << 15,
  56};
  57
  58uint mclink_fpgacount;
  59struct ihs_fpga *fpga_ptr[] = CONFIG_SYS_FPGA_PTR;
  60
  61struct {
  62        u8 bus;
  63        u8 addr;
  64} strider_fans[] = CONFIG_STRIDER_FANS;
  65
  66int fpga_set_reg(u32 fpga, u16 *reg, off_t regoff, u16 data)
  67{
  68        int res;
  69
  70        switch (fpga) {
  71        case 0:
  72                out_le16(reg, data);
  73                break;
  74        default:
  75                res = mclink_send(fpga - 1, regoff, data);
  76                if (res < 0) {
  77                        printf("mclink_send reg %02lx data %04x returned %d\n",
  78                               regoff, data, res);
  79                        return res;
  80                }
  81                break;
  82        }
  83
  84        return 0;
  85}
  86
  87int fpga_get_reg(u32 fpga, u16 *reg, off_t regoff, u16 *data)
  88{
  89        int res;
  90
  91        switch (fpga) {
  92        case 0:
  93                *data = in_le16(reg);
  94                break;
  95        default:
  96                if (fpga > mclink_fpgacount)
  97                        return -EINVAL;
  98                res = mclink_receive(fpga - 1, regoff, data);
  99                if (res < 0) {
 100                        printf("mclink_receive reg %02lx returned %d\n",
 101                               regoff, res);
 102                        return res;
 103                }
 104        }
 105
 106        return 0;
 107}
 108
 109int checkboard(void)
 110{
 111        char *s = env_get("serial#");
 112        bool hw_type_cat = pca9698_get_value(0x20, 18);
 113
 114        puts("Board: ");
 115
 116        printf("Strider %s", hw_type_cat ? "CAT" : "Fiber");
 117
 118        if (s) {
 119                puts(", serial# ");
 120                puts(s);
 121        }
 122
 123        puts("\n");
 124
 125        return 0;
 126}
 127
 128int last_stage_init(void)
 129{
 130        int slaves;
 131        uint k;
 132        uint mux_ch;
 133        uchar mclink_controllers_dvi[] = { 0x3c, 0x3d, 0x3e };
 134#ifdef CONFIG_STRIDER_CPU
 135        uchar mclink_controllers_dp[] = { 0x24, 0x25, 0x26 };
 136#endif
 137        bool hw_type_cat = pca9698_get_value(0x20, 18);
 138#ifdef CONFIG_STRIDER_CON_DP
 139        bool is_dh = pca9698_get_value(0x20, 25);
 140#endif
 141        bool ch0_sgmii2_present;
 142
 143        /* Turn on Analog Devices ADV7611 */
 144        pca9698_direction_output(0x20, 8, 0);
 145
 146        /* Turn on Parade DP501 */
 147        pca9698_direction_output(0x20, 10, 1);
 148        pca9698_direction_output(0x20, 11, 1);
 149
 150        ch0_sgmii2_present = !pca9698_get_value(0x20, 37);
 151
 152        /* wait for FPGA done, then reset FPGA */
 153        for (k = 0; k < ARRAY_SIZE(mclink_controllers_dvi); ++k) {
 154                uint ctr = 0;
 155                uchar *mclink_controllers = mclink_controllers_dvi;
 156
 157#ifdef CONFIG_STRIDER_CPU
 158                if (i2c_probe(mclink_controllers[k])) {
 159                        mclink_controllers = mclink_controllers_dp;
 160                        if (i2c_probe(mclink_controllers[k]))
 161                                continue;
 162                }
 163#else
 164                if (i2c_probe(mclink_controllers[k]))
 165                        continue;
 166#endif
 167                while (!(pca953x_get_val(mclink_controllers[k])
 168                       & MCFPGA_DONE)) {
 169                        mdelay(100);
 170                        if (ctr++ > 5) {
 171                                printf("no done for mclink_controller %d\n", k);
 172                                break;
 173                        }
 174                }
 175
 176                pca953x_set_dir(mclink_controllers[k], MCFPGA_RESET_N, 0);
 177                pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N, 0);
 178                udelay(10);
 179                pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N,
 180                                MCFPGA_RESET_N);
 181        }
 182
 183        if (hw_type_cat) {
 184                int retval;
 185                struct mii_dev *mdiodev = mdio_alloc();
 186
 187                if (!mdiodev)
 188                        return -ENOMEM;
 189                strncpy(mdiodev->name, bb_miiphy_buses[0].name, MDIO_NAME_LEN);
 190                mdiodev->read = bb_miiphy_read;
 191                mdiodev->write = bb_miiphy_write;
 192
 193                retval = mdio_register(mdiodev);
 194                if (retval < 0)
 195                        return retval;
 196                for (mux_ch = 0; mux_ch < MAX_MUX_CHANNELS; ++mux_ch) {
 197                        if ((mux_ch == 1) && !ch0_sgmii2_present)
 198                                continue;
 199
 200                        setup_88e1514(bb_miiphy_buses[0].name, mux_ch);
 201                }
 202        }
 203
 204        /* give slave-PLLs and Parade DP501 some time to be up and running */
 205        mdelay(500);
 206
 207        mclink_fpgacount = CONFIG_SYS_MCLINK_MAX;
 208        slaves = mclink_probe();
 209        mclink_fpgacount = 0;
 210
 211        ioep_fpga_print_info(0);
 212
 213        if (!adv7611_probe(0))
 214                printf("       Advantiv ADV7611 HDMI Receiver\n");
 215
 216#ifdef CONFIG_STRIDER_CON
 217        if (ioep_fpga_has_osd(0))
 218                osd_probe(0);
 219#endif
 220
 221#ifdef CONFIG_STRIDER_CON_DP
 222        if (ioep_fpga_has_osd(0)) {
 223                osd_probe(0);
 224                if (is_dh)
 225                        osd_probe(4);
 226        }
 227#endif
 228
 229#ifdef CONFIG_STRIDER_CPU
 230        ch7301_probe(0, false);
 231        dp501_probe(0, false);
 232#endif
 233
 234        if (slaves <= 0)
 235                return 0;
 236
 237        mclink_fpgacount = slaves;
 238
 239#ifdef CONFIG_STRIDER_CPU
 240        /* get ADV7611 out of reset, power up DP501, give some time to wakeup */
 241        for (k = 1; k <= slaves; ++k)
 242                FPGA_SET_REG(k, extended_control, 0x10); /* enable video */
 243
 244        mdelay(500);
 245#endif
 246
 247        for (k = 1; k <= slaves; ++k) {
 248                ioep_fpga_print_info(k);
 249#ifdef CONFIG_STRIDER_CON
 250                if (ioep_fpga_has_osd(k))
 251                        osd_probe(k);
 252#endif
 253#ifdef CONFIG_STRIDER_CON_DP
 254                if (ioep_fpga_has_osd(k)) {
 255                        osd_probe(k);
 256                        if (is_dh)
 257                                osd_probe(k + 4);
 258                }
 259#endif
 260#ifdef CONFIG_STRIDER_CPU
 261                if (!adv7611_probe(k))
 262                        printf("       Advantiv ADV7611 HDMI Receiver\n");
 263                ch7301_probe(k, false);
 264                dp501_probe(k, false);
 265#endif
 266                if (hw_type_cat) {
 267                        int retval;
 268                        struct mii_dev *mdiodev = mdio_alloc();
 269
 270                        if (!mdiodev)
 271                                return -ENOMEM;
 272                        strncpy(mdiodev->name, bb_miiphy_buses[k].name,
 273                                MDIO_NAME_LEN);
 274                        mdiodev->read = bb_miiphy_read;
 275                        mdiodev->write = bb_miiphy_write;
 276
 277                        retval = mdio_register(mdiodev);
 278                        if (retval < 0)
 279                                return retval;
 280                        setup_88e1514(bb_miiphy_buses[k].name, 0);
 281                }
 282        }
 283
 284        for (k = 0; k < ARRAY_SIZE(strider_fans); ++k) {
 285                i2c_set_bus_num(strider_fans[k].bus);
 286                init_fan_controller(strider_fans[k].addr);
 287        }
 288
 289        return 0;
 290}
 291
 292/*
 293 * provide access to fpga gpios (for I2C bitbang)
 294 * (these may look all too simple but make iocon.h much more readable)
 295 */
 296void fpga_gpio_set(uint bus, int pin)
 297{
 298        FPGA_SET_REG(bus, gpio.set, pin);
 299}
 300
 301void fpga_gpio_clear(uint bus, int pin)
 302{
 303        FPGA_SET_REG(bus, gpio.clear, pin);
 304}
 305
 306int fpga_gpio_get(uint bus, int pin)
 307{
 308        u16 val;
 309
 310        FPGA_GET_REG(bus, gpio.read, &val);
 311
 312        return val & pin;
 313}
 314
 315#ifdef CONFIG_STRIDER_CON_DP
 316void fpga_control_set(uint bus, int pin)
 317{
 318        u16 val;
 319
 320        FPGA_GET_REG(bus, control, &val);
 321        FPGA_SET_REG(bus, control, val | pin);
 322}
 323
 324void fpga_control_clear(uint bus, int pin)
 325{
 326        u16 val;
 327
 328        FPGA_GET_REG(bus, control, &val);
 329        FPGA_SET_REG(bus, control, val & ~pin);
 330}
 331#endif
 332
 333void mpc8308_init(void)
 334{
 335        pca9698_direction_output(0x20, 26, 1);
 336}
 337
 338void mpc8308_set_fpga_reset(uint state)
 339{
 340        pca9698_set_value(0x20, 26, state ? 0 : 1);
 341}
 342
 343void mpc8308_setup_hw(void)
 344{
 345        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 346
 347        /*
 348         * set "startup-finished"-gpios
 349         */
 350        setbits_be32(&immr->gpio[0].dir, BIT(31 - 11) | BIT(31 - 12));
 351        setbits_gpio0_out(BIT(31 - 12));
 352}
 353
 354int mpc8308_get_fpga_done(uint fpga)
 355{
 356        return pca9698_get_value(0x20, 20);
 357}
 358
 359#ifdef CONFIG_FSL_ESDHC
 360int board_mmc_init(struct bd_info *bd)
 361{
 362        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 363        sysconf83xx_t *sysconf = &immr->sysconf;
 364
 365        /* Enable cache snooping in eSDHC system configuration register */
 366        out_be32(&sysconf->sdhccr, 0x02000000);
 367
 368        return fsl_esdhc_mmc_init(bd);
 369}
 370#endif
 371
 372static struct pci_region pcie_regions_0[] = {
 373        {
 374                .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
 375                .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
 376                .size = CONFIG_SYS_PCIE1_MEM_SIZE,
 377                .flags = PCI_REGION_MEM,
 378        },
 379        {
 380                .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
 381                .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
 382                .size = CONFIG_SYS_PCIE1_IO_SIZE,
 383                .flags = PCI_REGION_IO,
 384        },
 385};
 386
 387void pci_init_board(void)
 388{
 389        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 390        sysconf83xx_t *sysconf = &immr->sysconf;
 391        law83xx_t *pcie_law = sysconf->pcielaw;
 392        struct pci_region *pcie_reg[] = { pcie_regions_0 };
 393
 394        fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
 395                         FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 396
 397        /* Deassert the resets in the control register */
 398        out_be32(&sysconf->pecr1, 0xE0008000);
 399        udelay(2000);
 400
 401        /* Configure PCI Express Local Access Windows */
 402        out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
 403        out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
 404
 405        mpc83xx_pcie_init(1, pcie_reg);
 406}
 407
 408ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
 409{
 410        info->portwidth = FLASH_CFI_16BIT;
 411        info->chipwidth = FLASH_CFI_BY16;
 412        info->interface = FLASH_CFI_X16;
 413        return 1;
 414}
 415
 416#if defined(CONFIG_OF_BOARD_SETUP)
 417int ft_board_setup(void *blob, struct bd_info *bd)
 418{
 419        ft_cpu_setup(blob, bd);
 420        fsl_fdt_fixup_dr_usb(blob, bd);
 421        fdt_fixup_esdhc(blob, bd);
 422
 423        return 0;
 424}
 425#endif
 426
 427/*
 428 * FPGA MII bitbang implementation
 429 */
 430
 431struct fpga_mii {
 432        uint fpga;
 433        int mdio;
 434} fpga_mii[] = {
 435        { 0, 1},
 436        { 1, 1},
 437        { 2, 1},
 438        { 3, 1},
 439};
 440
 441static int mii_dummy_init(struct bb_miiphy_bus *bus)
 442{
 443        return 0;
 444}
 445
 446static int mii_mdio_active(struct bb_miiphy_bus *bus)
 447{
 448        struct fpga_mii *fpga_mii = bus->priv;
 449
 450        if (fpga_mii->mdio)
 451                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 452        else
 453                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
 454
 455        return 0;
 456}
 457
 458static int mii_mdio_tristate(struct bb_miiphy_bus *bus)
 459{
 460        struct fpga_mii *fpga_mii = bus->priv;
 461
 462        FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 463
 464        return 0;
 465}
 466
 467static int mii_set_mdio(struct bb_miiphy_bus *bus, int v)
 468{
 469        struct fpga_mii *fpga_mii = bus->priv;
 470
 471        if (v)
 472                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 473        else
 474                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
 475
 476        fpga_mii->mdio = v;
 477
 478        return 0;
 479}
 480
 481static int mii_get_mdio(struct bb_miiphy_bus *bus, int *v)
 482{
 483        u16 gpio;
 484        struct fpga_mii *fpga_mii = bus->priv;
 485
 486        FPGA_GET_REG(fpga_mii->fpga, gpio.read, &gpio);
 487
 488        *v = ((gpio & GPIO_MDIO) != 0);
 489
 490        return 0;
 491}
 492
 493static int mii_set_mdc(struct bb_miiphy_bus *bus, int v)
 494{
 495        struct fpga_mii *fpga_mii = bus->priv;
 496
 497        if (v)
 498                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDC);
 499        else
 500                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDC);
 501
 502        return 0;
 503}
 504
 505static int mii_delay(struct bb_miiphy_bus *bus)
 506{
 507        udelay(1);
 508
 509        return 0;
 510}
 511
 512struct bb_miiphy_bus bb_miiphy_buses[] = {
 513        {
 514                .name = "board0",
 515                .init = mii_dummy_init,
 516                .mdio_active = mii_mdio_active,
 517                .mdio_tristate = mii_mdio_tristate,
 518                .set_mdio = mii_set_mdio,
 519                .get_mdio = mii_get_mdio,
 520                .set_mdc = mii_set_mdc,
 521                .delay = mii_delay,
 522                .priv = &fpga_mii[0],
 523        },
 524        {
 525                .name = "board1",
 526                .init = mii_dummy_init,
 527                .mdio_active = mii_mdio_active,
 528                .mdio_tristate = mii_mdio_tristate,
 529                .set_mdio = mii_set_mdio,
 530                .get_mdio = mii_get_mdio,
 531                .set_mdc = mii_set_mdc,
 532                .delay = mii_delay,
 533                .priv = &fpga_mii[1],
 534        },
 535        {
 536                .name = "board2",
 537                .init = mii_dummy_init,
 538                .mdio_active = mii_mdio_active,
 539                .mdio_tristate = mii_mdio_tristate,
 540                .set_mdio = mii_set_mdio,
 541                .get_mdio = mii_get_mdio,
 542                .set_mdc = mii_set_mdc,
 543                .delay = mii_delay,
 544                .priv = &fpga_mii[2],
 545        },
 546        {
 547                .name = "board3",
 548                .init = mii_dummy_init,
 549                .mdio_active = mii_mdio_active,
 550                .mdio_tristate = mii_mdio_tristate,
 551                .set_mdio = mii_set_mdio,
 552                .get_mdio = mii_get_mdio,
 553                .set_mdc = mii_set_mdc,
 554                .delay = mii_delay,
 555                .priv = &fpga_mii[3],
 556        },
 557};
 558
 559int bb_miiphy_buses_num = ARRAY_SIZE(bb_miiphy_buses);
 560