uboot/board/vscom/baltos/board.c
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   1/*
   2 * board.c
   3 *
   4 * Board functions for TI AM335X based boards
   5 *
   6 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
   7 *
   8 * SPDX-License-Identifier:     GPL-2.0+
   9 */
  10
  11#include <common.h>
  12#include <errno.h>
  13#include <libfdt.h>
  14#include <spl.h>
  15#include <asm/arch/cpu.h>
  16#include <asm/arch/hardware.h>
  17#include <asm/arch/omap.h>
  18#include <asm/arch/ddr_defs.h>
  19#include <asm/arch/clock.h>
  20#include <asm/arch/gpio.h>
  21#include <asm/arch/mmc_host_def.h>
  22#include <asm/arch/sys_proto.h>
  23#include <asm/arch/mem.h>
  24#include <asm/arch/mux.h>
  25#include <asm/io.h>
  26#include <asm/emif.h>
  27#include <asm/gpio.h>
  28#include <i2c.h>
  29#include <miiphy.h>
  30#include <cpsw.h>
  31#include <power/tps65217.h>
  32#include <power/tps65910.h>
  33#include <environment.h>
  34#include <watchdog.h>
  35#include "board.h"
  36
  37DECLARE_GLOBAL_DATA_PTR;
  38
  39/* GPIO that controls power to DDR on EVM-SK */
  40#define GPIO_DDR_VTT_EN         7
  41#define DIP_S1                  44
  42#define MPCIE_SW                100
  43
  44static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  45
  46static int baltos_set_console(void)
  47{
  48        int val, i, dips = 0;
  49        char buf[7];
  50
  51        for (i = 0; i < 4; i++) {
  52                sprintf(buf, "dip_s%d", i + 1);
  53
  54                if (gpio_request(DIP_S1 + i, buf)) {
  55                        printf("failed to export GPIO %d\n", DIP_S1 + i);
  56                        return 0;
  57                }
  58
  59                if (gpio_direction_input(DIP_S1 + i)) {
  60                        printf("failed to set GPIO %d direction\n", DIP_S1 + i);
  61                        return 0;
  62                }
  63
  64                val = gpio_get_value(DIP_S1 + i);
  65                dips |= val << i;
  66        }
  67
  68        printf("DIPs: 0x%1x\n", (~dips) & 0xf);
  69
  70        if ((dips & 0xf) == 0xe)
  71                setenv("console", "ttyUSB0,115200n8");
  72
  73        return 0;
  74}
  75
  76static int read_eeprom(BSP_VS_HWPARAM *header)
  77{
  78        i2c_set_bus_num(1);
  79
  80        /* Check if baseboard eeprom is available */
  81        if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  82                puts("Could not probe the EEPROM; something fundamentally "
  83                        "wrong on the I2C bus.\n");
  84                return -ENODEV;
  85        }
  86
  87        /* read the eeprom using i2c */
  88        if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
  89                     sizeof(BSP_VS_HWPARAM))) {
  90                puts("Could not read the EEPROM; something fundamentally"
  91                        " wrong on the I2C bus.\n");
  92                return -EIO;
  93        }
  94
  95        if (header->Magic != 0xDEADBEEF) {
  96
  97                printf("Incorrect magic number (0x%x) in EEPROM\n",
  98                                header->Magic);
  99
 100                /* fill default values */
 101                header->SystemId = 211;
 102                header->MAC1[0] = 0x00;
 103                header->MAC1[1] = 0x00;
 104                header->MAC1[2] = 0x00;
 105                header->MAC1[3] = 0x00;
 106                header->MAC1[4] = 0x00;
 107                header->MAC1[5] = 0x01;
 108
 109                header->MAC2[0] = 0x00;
 110                header->MAC2[1] = 0x00;
 111                header->MAC2[2] = 0x00;
 112                header->MAC2[3] = 0x00;
 113                header->MAC2[4] = 0x00;
 114                header->MAC2[5] = 0x02;
 115
 116                header->MAC3[0] = 0x00;
 117                header->MAC3[1] = 0x00;
 118                header->MAC3[2] = 0x00;
 119                header->MAC3[3] = 0x00;
 120                header->MAC3[4] = 0x00;
 121                header->MAC3[5] = 0x03;
 122        }
 123
 124        return 0;
 125}
 126
 127#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
 128
 129static const struct ddr_data ddr3_baltos_data = {
 130        .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 131        .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 132        .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 133        .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 134};
 135
 136static const struct cmd_control ddr3_baltos_cmd_ctrl_data = {
 137        .cmd0csratio = MT41K256M16HA125E_RATIO,
 138        .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 139
 140        .cmd1csratio = MT41K256M16HA125E_RATIO,
 141        .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 142
 143        .cmd2csratio = MT41K256M16HA125E_RATIO,
 144        .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 145};
 146
 147static struct emif_regs ddr3_baltos_emif_reg_data = {
 148        .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 149        .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 150        .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 151        .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 152        .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 153        .zq_config = MT41K256M16HA125E_ZQ_CFG,
 154        .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 155};
 156
 157#ifdef CONFIG_SPL_OS_BOOT
 158int spl_start_uboot(void)
 159{
 160        /* break into full u-boot on 'c' */
 161        return (serial_tstc() && serial_getc() == 'c');
 162}
 163#endif
 164
 165#define OSC     (V_OSCK/1000000)
 166const struct dpll_params dpll_ddr = {
 167                266, OSC-1, 1, -1, -1, -1, -1};
 168const struct dpll_params dpll_ddr_evm_sk = {
 169                303, OSC-1, 1, -1, -1, -1, -1};
 170const struct dpll_params dpll_ddr_baltos = {
 171                400, OSC-1, 1, -1, -1, -1, -1};
 172
 173void am33xx_spl_board_init(void)
 174{
 175        int mpu_vdd;
 176        int sil_rev;
 177
 178        /* Get the frequency */
 179        dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 180
 181        /*
 182         * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 183         * MPU frequencies we support we use a CORE voltage of
 184         * 1.1375V.  For MPU voltage we need to switch based on
 185         * the frequency we are running at.
 186         */
 187        i2c_set_bus_num(1);
 188
 189        printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED);
 190
 191        if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
 192                puts("i2c: cannot access TPS65910\n");
 193                return;
 194        }
 195
 196        /*
 197         * Depending on MPU clock and PG we will need a different
 198         * VDD to drive at that speed.
 199         */
 200        sil_rev = readl(&cdev->deviceid) >> 28;
 201        mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 202                                              dpll_mpu_opp100.m);
 203
 204        /* Tell the TPS65910 to use i2c */
 205        tps65910_set_i2c_control();
 206
 207        /* First update MPU voltage. */
 208        if (tps65910_voltage_update(MPU, mpu_vdd))
 209                return;
 210
 211        /* Second, update the CORE voltage. */
 212        if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 213                return;
 214
 215        /* Set CORE Frequencies to OPP100 */
 216        do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 217
 218        /* Set MPU Frequency to what we detected now that voltages are set */
 219        do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 220
 221        writel(0x000010ff, PRM_DEVICE_INST + 4);
 222}
 223
 224const struct dpll_params *get_dpll_ddr_params(void)
 225{
 226        enable_i2c1_pin_mux();
 227        i2c_set_bus_num(1);
 228
 229        return &dpll_ddr_baltos;
 230}
 231
 232void set_uart_mux_conf(void)
 233{
 234        enable_uart0_pin_mux();
 235}
 236
 237void set_mux_conf_regs(void)
 238{
 239        enable_board_pin_mux();
 240}
 241
 242const struct ctrl_ioregs ioregs_baltos = {
 243        .cm0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 244        .cm1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 245        .cm2ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 246        .dt0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 247        .dt1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 248};
 249
 250void sdram_init(void)
 251{
 252        gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 253        gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 254
 255        config_ddr(400, &ioregs_baltos,
 256                   &ddr3_baltos_data,
 257                   &ddr3_baltos_cmd_ctrl_data,
 258                   &ddr3_baltos_emif_reg_data, 0);
 259}
 260#endif
 261
 262/*
 263 * Basic board specific setup.  Pinmux has been handled already.
 264 */
 265int board_init(void)
 266{
 267#if defined(CONFIG_HW_WATCHDOG)
 268        hw_watchdog_init();
 269#endif
 270
 271        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 272#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
 273        gpmc_init();
 274#endif
 275        return 0;
 276}
 277
 278int ft_board_setup(void *blob, bd_t *bd)
 279{
 280        int node, ret;
 281        unsigned char mac_addr[6];
 282        BSP_VS_HWPARAM header;
 283
 284        /* get production data */
 285        if (read_eeprom(&header))
 286                return 0;
 287
 288        /* setup MAC1 */
 289        mac_addr[0] = header.MAC1[0];
 290        mac_addr[1] = header.MAC1[1];
 291        mac_addr[2] = header.MAC1[2];
 292        mac_addr[3] = header.MAC1[3];
 293        mac_addr[4] = header.MAC1[4];
 294        mac_addr[5] = header.MAC1[5];
 295
 296
 297        node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100200");
 298        if (node < 0) {
 299                printf("no /soc/fman/ethernet path offset\n");
 300                return -ENODEV;
 301        }
 302
 303        ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
 304        if (ret) {
 305                printf("error setting local-mac-address property\n");
 306                return -ENODEV;
 307        }
 308
 309        /* setup MAC2 */
 310        mac_addr[0] = header.MAC2[0];
 311        mac_addr[1] = header.MAC2[1];
 312        mac_addr[2] = header.MAC2[2];
 313        mac_addr[3] = header.MAC2[3];
 314        mac_addr[4] = header.MAC2[4];
 315        mac_addr[5] = header.MAC2[5];
 316
 317        node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100300");
 318        if (node < 0) {
 319                printf("no /soc/fman/ethernet path offset\n");
 320                return -ENODEV;
 321        }
 322
 323        ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
 324        if (ret) {
 325                printf("error setting local-mac-address property\n");
 326                return -ENODEV;
 327        }
 328
 329        printf("\nFDT was successfully setup\n");
 330
 331        return 0;
 332}
 333
 334static struct module_pin_mux pcie_sw_pin_mux[] = {
 335        {OFFSET(mii1_rxdv), (MODE(7) | PULLUDEN )},     /* GPIO3_4 */
 336        {-1},
 337};
 338
 339static struct module_pin_mux dip_pin_mux[] = {
 340        {OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )},     /* GPIO1_12 */
 341        {OFFSET(gpmc_ad13), (MODE(7)  | RXACTIVE )},    /* GPIO1_13 */
 342        {OFFSET(gpmc_ad14), (MODE(7)  | RXACTIVE )},    /* GPIO1_14 */
 343        {OFFSET(gpmc_ad15), (MODE(7)  | RXACTIVE )},    /* GPIO1_15 */
 344        {-1},
 345};
 346
 347#ifdef CONFIG_BOARD_LATE_INIT
 348int board_late_init(void)
 349{
 350#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 351        BSP_VS_HWPARAM header;
 352        char model[4];
 353
 354        /* get production data */
 355        if (read_eeprom(&header)) {
 356                strcpy(model, "211");
 357        } else {
 358                sprintf(model, "%d", header.SystemId);
 359                if (header.SystemId == 215) {
 360                        configure_module_pin_mux(dip_pin_mux);
 361                        baltos_set_console();
 362                }
 363        }
 364
 365        /* turn power for the mPCIe slot */
 366        configure_module_pin_mux(pcie_sw_pin_mux);
 367        if (gpio_request(MPCIE_SW, "mpcie_sw")) {
 368                printf("failed to export GPIO %d\n", MPCIE_SW);
 369                return -ENODEV;
 370        }
 371        if (gpio_direction_output(MPCIE_SW, 1)) {
 372                printf("failed to set GPIO %d direction\n", MPCIE_SW);
 373                return -ENODEV;
 374        }
 375
 376        setenv("board_name", model);
 377#endif
 378
 379        return 0;
 380}
 381#endif
 382
 383#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 384        (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 385static void cpsw_control(int enabled)
 386{
 387        /* VTP can be added here */
 388
 389        return;
 390}
 391
 392static struct cpsw_slave_data cpsw_slaves[] = {
 393        {
 394                .slave_reg_ofs  = 0x208,
 395                .sliver_reg_ofs = 0xd80,
 396                .phy_addr       = 0,
 397        },
 398        {
 399                .slave_reg_ofs  = 0x308,
 400                .sliver_reg_ofs = 0xdc0,
 401                .phy_addr       = 7,
 402        },
 403};
 404
 405static struct cpsw_platform_data cpsw_data = {
 406        .mdio_base              = CPSW_MDIO_BASE,
 407        .cpsw_base              = CPSW_BASE,
 408        .mdio_div               = 0xff,
 409        .channels               = 8,
 410        .cpdma_reg_ofs          = 0x800,
 411        .slaves                 = 2,
 412        .slave_data             = cpsw_slaves,
 413        .active_slave           = 1,
 414        .ale_reg_ofs            = 0xd00,
 415        .ale_entries            = 1024,
 416        .host_port_reg_ofs      = 0x108,
 417        .hw_stats_reg_ofs       = 0x900,
 418        .bd_ram_ofs             = 0x2000,
 419        .mac_control            = (1 << 5),
 420        .control                = cpsw_control,
 421        .host_port_num          = 0,
 422        .version                = CPSW_CTRL_VERSION_2,
 423};
 424#endif
 425
 426#if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \
 427                && defined(CONFIG_SPL_BUILD)) || \
 428        ((defined(CONFIG_DRIVER_TI_CPSW) || \
 429          defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \
 430         !defined(CONFIG_SPL_BUILD))
 431int board_eth_init(bd_t *bis)
 432{
 433        int rv, n = 0;
 434        uint8_t mac_addr[6];
 435        uint32_t mac_hi, mac_lo;
 436
 437        /*
 438         * Note here that we're using CPSW1 since that has a 1Gbit PHY while
 439         * CSPW0 has a 100Mbit PHY.
 440         *
 441         * On product, CPSW1 maps to port labeled WAN.
 442         */
 443
 444        /* try reading mac address from efuse */
 445        mac_lo = readl(&cdev->macid1l);
 446        mac_hi = readl(&cdev->macid1h);
 447        mac_addr[0] = mac_hi & 0xFF;
 448        mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 449        mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 450        mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 451        mac_addr[4] = mac_lo & 0xFF;
 452        mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 453
 454#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 455        (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 456        if (!getenv("ethaddr")) {
 457                printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 458
 459                if (is_valid_ethaddr(mac_addr))
 460                        eth_setenv_enetaddr("ethaddr", mac_addr);
 461        }
 462
 463#ifdef CONFIG_DRIVER_TI_CPSW
 464        writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel);
 465        cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII;
 466        rv = cpsw_register(&cpsw_data);
 467        if (rv < 0)
 468                printf("Error %d registering CPSW switch\n", rv);
 469        else
 470                n += rv;
 471#endif
 472
 473        /*
 474         *
 475         * CPSW RGMII Internal Delay Mode is not supported in all PVT
 476         * operating points.  So we must set the TX clock delay feature
 477         * in the AR8051 PHY.  Since we only support a single ethernet
 478         * device in U-Boot, we only do this for the first instance.
 479         */
 480#define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 481#define AR8051_PHY_DEBUG_DATA_REG       0x1e
 482#define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 483#define AR8051_RGMII_TX_CLK_DLY         0x100
 484        const char *devname;
 485        devname = miiphy_get_current_dev();
 486
 487        miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG,
 488                        AR8051_DEBUG_RGMII_CLK_DLY_REG);
 489        miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG,
 490                        AR8051_RGMII_TX_CLK_DLY);
 491#endif
 492        return n;
 493}
 494#endif
 495