uboot/board/gdsys/mpc8308/strider.c
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   1/*
   2 * (C) Copyright 2014
   3 * Dirk Eibach,  Guntermann & Drunck GmbH, eibach@gdsys.de
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <common.h>
   9#include <hwconfig.h>
  10#include <i2c.h>
  11#include <spi.h>
  12#include <libfdt.h>
  13#include <fdt_support.h>
  14#include <pci.h>
  15#include <mpc83xx.h>
  16#include <fsl_esdhc.h>
  17#include <asm/io.h>
  18#include <asm/fsl_serdes.h>
  19#include <asm/fsl_mpc83xx_serdes.h>
  20
  21#include "mpc8308.h"
  22
  23#include <gdsys_fpga.h>
  24
  25#include "../common/adv7611.h"
  26#include "../common/ch7301.h"
  27#include "../common/dp501.h"
  28#include "../common/ioep-fpga.h"
  29#include "../common/mclink.h"
  30#include "../common/osd.h"
  31#include "../common/phy.h"
  32#include "../common/fanctrl.h"
  33
  34#include <pca953x.h>
  35#include <pca9698.h>
  36
  37#include <miiphy.h>
  38
  39DECLARE_GLOBAL_DATA_PTR;
  40
  41#define MAX_MUX_CHANNELS 2
  42
  43enum {
  44        MCFPGA_DONE = 1 << 0,
  45        MCFPGA_INIT_N = 1 << 1,
  46        MCFPGA_PROGRAM_N = 1 << 2,
  47        MCFPGA_UPDATE_ENABLE_N = 1 << 3,
  48        MCFPGA_RESET_N = 1 << 4,
  49};
  50
  51enum {
  52        GPIO_MDC = 1 << 14,
  53        GPIO_MDIO = 1 << 15,
  54};
  55
  56unsigned int mclink_fpgacount;
  57struct ihs_fpga *fpga_ptr[] = CONFIG_SYS_FPGA_PTR;
  58
  59struct {
  60        u8 bus;
  61        u8 addr;
  62} strider_fans[] = CONFIG_STRIDER_FANS;
  63
  64int fpga_set_reg(u32 fpga, u16 *reg, off_t regoff, u16 data)
  65{
  66        int res;
  67
  68        switch (fpga) {
  69        case 0:
  70                out_le16(reg, data);
  71                break;
  72        default:
  73                res = mclink_send(fpga - 1, regoff, data);
  74                if (res < 0) {
  75                        printf("mclink_send reg %02lx data %04x returned %d\n",
  76                               regoff, data, res);
  77                        return res;
  78                }
  79                break;
  80        }
  81
  82        return 0;
  83}
  84
  85int fpga_get_reg(u32 fpga, u16 *reg, off_t regoff, u16 *data)
  86{
  87        int res;
  88
  89        switch (fpga) {
  90        case 0:
  91                *data = in_le16(reg);
  92                break;
  93        default:
  94                if (fpga > mclink_fpgacount)
  95                        return -EINVAL;
  96                res = mclink_receive(fpga - 1, regoff, data);
  97                if (res < 0) {
  98                        printf("mclink_receive reg %02lx returned %d\n",
  99                               regoff, res);
 100                        return res;
 101                }
 102        }
 103
 104        return 0;
 105}
 106
 107int checkboard(void)
 108{
 109        char *s = getenv("serial#");
 110        bool hw_type_cat = pca9698_get_value(0x20, 18);
 111
 112        puts("Board: ");
 113
 114        printf("Strider %s", hw_type_cat ? "CAT" : "Fiber");
 115
 116        if (s != NULL) {
 117                puts(", serial# ");
 118                puts(s);
 119        }
 120
 121        puts("\n");
 122
 123        return 0;
 124}
 125
 126int last_stage_init(void)
 127{
 128        int slaves;
 129        unsigned int k;
 130        unsigned int mux_ch;
 131        unsigned char mclink_controllers_dvi[] = { 0x3c, 0x3d, 0x3e };
 132#ifdef CONFIG_STRIDER_CPU
 133        unsigned char mclink_controllers_dp[] = { 0x24, 0x25, 0x26 };
 134#endif
 135        bool hw_type_cat = pca9698_get_value(0x20, 18);
 136#ifdef CONFIG_STRIDER_CON_DP
 137        bool is_dh = pca9698_get_value(0x20, 25);
 138#endif
 139        bool ch0_sgmii2_present = false;
 140
 141        /* Turn on Analog Devices ADV7611 */
 142        pca9698_direction_output(0x20, 8, 0);
 143
 144        /* Turn on Parade DP501 */
 145        pca9698_direction_output(0x20, 10, 1);
 146        pca9698_direction_output(0x20, 11, 1);
 147
 148        ch0_sgmii2_present = !pca9698_get_value(0x20, 37);
 149
 150        /* wait for FPGA done, then reset FPGA */
 151        for (k = 0; k < ARRAY_SIZE(mclink_controllers_dvi); ++k) {
 152                unsigned int ctr = 0;
 153                unsigned char *mclink_controllers = mclink_controllers_dvi;
 154
 155#ifdef CONFIG_STRIDER_CPU
 156                if (i2c_probe(mclink_controllers[k])) {
 157                        mclink_controllers = mclink_controllers_dp;
 158                        if (i2c_probe(mclink_controllers[k]))
 159                                continue;
 160                }
 161#else
 162                if (i2c_probe(mclink_controllers[k]))
 163                        continue;
 164#endif
 165                while (!(pca953x_get_val(mclink_controllers[k])
 166                       & MCFPGA_DONE)) {
 167                        udelay(100000);
 168                        if (ctr++ > 5) {
 169                                printf("no done for mclink_controller %d\n", k);
 170                                break;
 171                        }
 172                }
 173
 174                pca953x_set_dir(mclink_controllers[k], MCFPGA_RESET_N, 0);
 175                pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N, 0);
 176                udelay(10);
 177                pca953x_set_val(mclink_controllers[k], MCFPGA_RESET_N,
 178                                MCFPGA_RESET_N);
 179        }
 180
 181        if (hw_type_cat) {
 182                int retval;
 183                struct mii_dev *mdiodev = mdio_alloc();
 184                if (!mdiodev)
 185                        return -ENOMEM;
 186                strncpy(mdiodev->name, bb_miiphy_buses[0].name, MDIO_NAME_LEN);
 187                mdiodev->read = bb_miiphy_read;
 188                mdiodev->write = bb_miiphy_write;
 189
 190                retval = mdio_register(mdiodev);
 191                if (retval < 0)
 192                        return retval;
 193                for (mux_ch = 0; mux_ch < MAX_MUX_CHANNELS; ++mux_ch) {
 194                        if ((mux_ch == 1) && !ch0_sgmii2_present)
 195                                continue;
 196
 197                        setup_88e1514(bb_miiphy_buses[0].name, mux_ch);
 198                }
 199        }
 200
 201        /* give slave-PLLs and Parade DP501 some time to be up and running */
 202        udelay(500000);
 203
 204        mclink_fpgacount = CONFIG_SYS_MCLINK_MAX;
 205        slaves = mclink_probe();
 206        mclink_fpgacount = 0;
 207
 208        ioep_fpga_print_info(0);
 209
 210        if (!adv7611_probe(0))
 211                printf("       Advantiv ADV7611 HDMI Receiver\n");
 212
 213#ifdef CONFIG_STRIDER_CON
 214        if (ioep_fpga_has_osd(0))
 215                osd_probe(0);
 216#endif
 217
 218#ifdef CONFIG_STRIDER_CON_DP
 219        if (ioep_fpga_has_osd(0)) {
 220                osd_probe(0);
 221                if (is_dh)
 222                        osd_probe(4);
 223        }
 224#endif
 225
 226#ifdef CONFIG_STRIDER_CPU
 227        ch7301_probe(0, false);
 228        dp501_probe(0, false);
 229#endif
 230
 231        if (slaves <= 0)
 232                return 0;
 233
 234        mclink_fpgacount = slaves;
 235
 236#ifdef CONFIG_STRIDER_CPU
 237        /* get ADV7611 out of reset, power up DP501, give some time to wakeup */
 238        for (k = 1; k <= slaves; ++k)
 239                FPGA_SET_REG(k, extended_control, 0x10); /* enable video */
 240
 241        udelay(500000);
 242#endif
 243
 244        for (k = 1; k <= slaves; ++k) {
 245                ioep_fpga_print_info(k);
 246#ifdef CONFIG_STRIDER_CON
 247                if (ioep_fpga_has_osd(k))
 248                        osd_probe(k);
 249#endif
 250#ifdef CONFIG_STRIDER_CON_DP
 251                if (ioep_fpga_has_osd(k)) {
 252                        osd_probe(k);
 253                        if (is_dh)
 254                                osd_probe(k + 4);
 255                }
 256#endif
 257#ifdef CONFIG_STRIDER_CPU
 258                if (!adv7611_probe(k))
 259                        printf("       Advantiv ADV7611 HDMI Receiver\n");
 260                ch7301_probe(k, false);
 261                dp501_probe(k, false);
 262#endif
 263                if (hw_type_cat) {
 264                        int retval;
 265                        struct mii_dev *mdiodev = mdio_alloc();
 266                        if (!mdiodev)
 267                                return -ENOMEM;
 268                        strncpy(mdiodev->name, bb_miiphy_buses[k].name,
 269                                MDIO_NAME_LEN);
 270                        mdiodev->read = bb_miiphy_read;
 271                        mdiodev->write = bb_miiphy_write;
 272
 273                        retval = mdio_register(mdiodev);
 274                        if (retval < 0)
 275                                return retval;
 276                        setup_88e1514(bb_miiphy_buses[k].name, 0);
 277                }
 278        }
 279
 280        for (k = 0; k < ARRAY_SIZE(strider_fans); ++k) {
 281                i2c_set_bus_num(strider_fans[k].bus);
 282                init_fan_controller(strider_fans[k].addr);
 283        }
 284
 285        return 0;
 286}
 287
 288/*
 289 * provide access to fpga gpios (for I2C bitbang)
 290 * (these may look all too simple but make iocon.h much more readable)
 291 */
 292void fpga_gpio_set(unsigned int bus, int pin)
 293{
 294        FPGA_SET_REG(bus, gpio.set, pin);
 295}
 296
 297void fpga_gpio_clear(unsigned int bus, int pin)
 298{
 299        FPGA_SET_REG(bus, gpio.clear, pin);
 300}
 301
 302int fpga_gpio_get(unsigned int bus, int pin)
 303{
 304        u16 val;
 305
 306        FPGA_GET_REG(bus, gpio.read, &val);
 307
 308        return val & pin;
 309}
 310
 311#ifdef CONFIG_STRIDER_CON_DP
 312void fpga_control_set(unsigned int bus, int pin)
 313{
 314        u16 val;
 315
 316        FPGA_GET_REG(bus, control, &val);
 317        FPGA_SET_REG(bus, control, val | pin);
 318}
 319
 320void fpga_control_clear(unsigned int bus, int pin)
 321{
 322        u16 val;
 323
 324        FPGA_GET_REG(bus, control, &val);
 325        FPGA_SET_REG(bus, control, val & ~pin);
 326}
 327#endif
 328
 329void mpc8308_init(void)
 330{
 331        pca9698_direction_output(0x20, 26, 1);
 332}
 333
 334void mpc8308_set_fpga_reset(unsigned state)
 335{
 336        pca9698_set_value(0x20, 26, state ? 0 : 1);
 337}
 338
 339void mpc8308_setup_hw(void)
 340{
 341        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 342
 343        /*
 344         * set "startup-finished"-gpios
 345         */
 346        setbits_be32(&immr->gpio[0].dir, (1 << (31-11)) | (1 << (31-12)));
 347        setbits_be32(&immr->gpio[0].dat, 1 << (31-12));
 348}
 349
 350int mpc8308_get_fpga_done(unsigned fpga)
 351{
 352        return pca9698_get_value(0x20, 20);
 353}
 354
 355#ifdef CONFIG_FSL_ESDHC
 356int board_mmc_init(bd_t *bd)
 357{
 358        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 359        sysconf83xx_t *sysconf = &immr->sysconf;
 360
 361        /* Enable cache snooping in eSDHC system configuration register */
 362        out_be32(&sysconf->sdhccr, 0x02000000);
 363
 364        return fsl_esdhc_mmc_init(bd);
 365}
 366#endif
 367
 368static struct pci_region pcie_regions_0[] = {
 369        {
 370                .bus_start = CONFIG_SYS_PCIE1_MEM_BASE,
 371                .phys_start = CONFIG_SYS_PCIE1_MEM_PHYS,
 372                .size = CONFIG_SYS_PCIE1_MEM_SIZE,
 373                .flags = PCI_REGION_MEM,
 374        },
 375        {
 376                .bus_start = CONFIG_SYS_PCIE1_IO_BASE,
 377                .phys_start = CONFIG_SYS_PCIE1_IO_PHYS,
 378                .size = CONFIG_SYS_PCIE1_IO_SIZE,
 379                .flags = PCI_REGION_IO,
 380        },
 381};
 382
 383void pci_init_board(void)
 384{
 385        immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
 386        sysconf83xx_t *sysconf = &immr->sysconf;
 387        law83xx_t *pcie_law = sysconf->pcielaw;
 388        struct pci_region *pcie_reg[] = { pcie_regions_0 };
 389
 390        fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
 391                         FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 392
 393        /* Deassert the resets in the control register */
 394        out_be32(&sysconf->pecr1, 0xE0008000);
 395        udelay(2000);
 396
 397        /* Configure PCI Express Local Access Windows */
 398        out_be32(&pcie_law[0].bar, CONFIG_SYS_PCIE1_BASE & LAWBAR_BAR);
 399        out_be32(&pcie_law[0].ar, LBLAWAR_EN | LBLAWAR_512MB);
 400
 401        mpc83xx_pcie_init(1, pcie_reg);
 402}
 403
 404ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info)
 405{
 406        info->portwidth = FLASH_CFI_16BIT;
 407        info->chipwidth = FLASH_CFI_BY16;
 408        info->interface = FLASH_CFI_X16;
 409        return 1;
 410}
 411
 412#if defined(CONFIG_OF_BOARD_SETUP)
 413int ft_board_setup(void *blob, bd_t *bd)
 414{
 415        ft_cpu_setup(blob, bd);
 416        fsl_fdt_fixup_dr_usb(blob, bd);
 417        fdt_fixup_esdhc(blob, bd);
 418
 419        return 0;
 420}
 421#endif
 422
 423/*
 424 * FPGA MII bitbang implementation
 425 */
 426
 427struct fpga_mii {
 428        unsigned fpga;
 429        int mdio;
 430} fpga_mii[] = {
 431        { 0, 1},
 432        { 1, 1},
 433        { 2, 1},
 434        { 3, 1},
 435};
 436
 437static int mii_dummy_init(struct bb_miiphy_bus *bus)
 438{
 439        return 0;
 440}
 441
 442static int mii_mdio_active(struct bb_miiphy_bus *bus)
 443{
 444        struct fpga_mii *fpga_mii = bus->priv;
 445
 446        if (fpga_mii->mdio)
 447                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 448        else
 449                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
 450
 451        return 0;
 452}
 453
 454static int mii_mdio_tristate(struct bb_miiphy_bus *bus)
 455{
 456        struct fpga_mii *fpga_mii = bus->priv;
 457
 458        FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 459
 460        return 0;
 461}
 462
 463static int mii_set_mdio(struct bb_miiphy_bus *bus, int v)
 464{
 465        struct fpga_mii *fpga_mii = bus->priv;
 466
 467        if (v)
 468                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDIO);
 469        else
 470                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDIO);
 471
 472        fpga_mii->mdio = v;
 473
 474        return 0;
 475}
 476
 477static int mii_get_mdio(struct bb_miiphy_bus *bus, int *v)
 478{
 479        u16 gpio;
 480        struct fpga_mii *fpga_mii = bus->priv;
 481
 482        FPGA_GET_REG(fpga_mii->fpga, gpio.read, &gpio);
 483
 484        *v = ((gpio & GPIO_MDIO) != 0);
 485
 486        return 0;
 487}
 488
 489static int mii_set_mdc(struct bb_miiphy_bus *bus, int v)
 490{
 491        struct fpga_mii *fpga_mii = bus->priv;
 492
 493        if (v)
 494                FPGA_SET_REG(fpga_mii->fpga, gpio.set, GPIO_MDC);
 495        else
 496                FPGA_SET_REG(fpga_mii->fpga, gpio.clear, GPIO_MDC);
 497
 498        return 0;
 499}
 500
 501static int mii_delay(struct bb_miiphy_bus *bus)
 502{
 503        udelay(1);
 504
 505        return 0;
 506}
 507
 508struct bb_miiphy_bus bb_miiphy_buses[] = {
 509        {
 510                .name = "board0",
 511                .init = mii_dummy_init,
 512                .mdio_active = mii_mdio_active,
 513                .mdio_tristate = mii_mdio_tristate,
 514                .set_mdio = mii_set_mdio,
 515                .get_mdio = mii_get_mdio,
 516                .set_mdc = mii_set_mdc,
 517                .delay = mii_delay,
 518                .priv = &fpga_mii[0],
 519        },
 520        {
 521                .name = "board1",
 522                .init = mii_dummy_init,
 523                .mdio_active = mii_mdio_active,
 524                .mdio_tristate = mii_mdio_tristate,
 525                .set_mdio = mii_set_mdio,
 526                .get_mdio = mii_get_mdio,
 527                .set_mdc = mii_set_mdc,
 528                .delay = mii_delay,
 529                .priv = &fpga_mii[1],
 530        },
 531        {
 532                .name = "board2",
 533                .init = mii_dummy_init,
 534                .mdio_active = mii_mdio_active,
 535                .mdio_tristate = mii_mdio_tristate,
 536                .set_mdio = mii_set_mdio,
 537                .get_mdio = mii_get_mdio,
 538                .set_mdc = mii_set_mdc,
 539                .delay = mii_delay,
 540                .priv = &fpga_mii[2],
 541        },
 542        {
 543                .name = "board3",
 544                .init = mii_dummy_init,
 545                .mdio_active = mii_mdio_active,
 546                .mdio_tristate = mii_mdio_tristate,
 547                .set_mdio = mii_set_mdio,
 548                .get_mdio = mii_get_mdio,
 549                .set_mdc = mii_set_mdc,
 550                .delay = mii_delay,
 551                .priv = &fpga_mii[3],
 552        },
 553};
 554
 555int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) /
 556                          sizeof(bb_miiphy_buses[0]);
 557