uboot/board/vscom/baltos/board.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * board.c
   4 *
   5 * Board functions for TI AM335X based boards
   6 *
   7 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
   8 */
   9
  10#include <common.h>
  11#include <env.h>
  12#include <errno.h>
  13#include <init.h>
  14#include <net.h>
  15#include <serial.h>
  16#include <asm/global_data.h>
  17#include <linux/libfdt.h>
  18#include <spl.h>
  19#include <asm/arch/cpu.h>
  20#include <asm/arch/hardware.h>
  21#include <asm/arch/omap.h>
  22#include <asm/arch/ddr_defs.h>
  23#include <asm/arch/clock.h>
  24#include <asm/arch/gpio.h>
  25#include <asm/arch/mmc_host_def.h>
  26#include <asm/arch/sys_proto.h>
  27#include <asm/arch/mem.h>
  28#include <asm/arch/mux.h>
  29#include <asm/io.h>
  30#include <asm/emif.h>
  31#include <asm/gpio.h>
  32#include <i2c.h>
  33#include <miiphy.h>
  34#include <cpsw.h>
  35#include <power/tps65910.h>
  36#include <watchdog.h>
  37#include "board.h"
  38
  39DECLARE_GLOBAL_DATA_PTR;
  40
  41/* GPIO that controls DIP switch and mPCIe slot */
  42#define DIP_S1                  44
  43#define MPCIE_SW                100
  44
  45static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  46
  47static int baltos_set_console(void)
  48{
  49        int val, i, dips = 0;
  50        char buf[7];
  51
  52        for (i = 0; i < 4; i++) {
  53                sprintf(buf, "dip_s%d", i + 1);
  54
  55                if (gpio_request(DIP_S1 + i, buf)) {
  56                        printf("failed to export GPIO %d\n", DIP_S1 + i);
  57                        return 0;
  58                }
  59
  60                if (gpio_direction_input(DIP_S1 + i)) {
  61                        printf("failed to set GPIO %d direction\n", DIP_S1 + i);
  62                        return 0;
  63                }
  64
  65                val = gpio_get_value(DIP_S1 + i);
  66                dips |= val << i;
  67        }
  68
  69        printf("DIPs: 0x%1x\n", (~dips) & 0xf);
  70
  71        if ((dips & 0xf) == 0xe)
  72                env_set("console", "ttyUSB0,115200n8");
  73
  74        return 0;
  75}
  76
  77static int read_eeprom(BSP_VS_HWPARAM *header)
  78{
  79        i2c_set_bus_num(1);
  80
  81        /* Check if baseboard eeprom is available */
  82        if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  83                puts("Could not probe the EEPROM; something fundamentally "
  84                        "wrong on the I2C bus.\n");
  85                return -ENODEV;
  86        }
  87
  88        /* read the eeprom using i2c */
  89        if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
  90                     sizeof(BSP_VS_HWPARAM))) {
  91                puts("Could not read the EEPROM; something fundamentally"
  92                        " wrong on the I2C bus.\n");
  93                return -EIO;
  94        }
  95
  96        if (header->Magic != 0xDEADBEEF) {
  97
  98                printf("Incorrect magic number (0x%x) in EEPROM\n",
  99                                header->Magic);
 100
 101                /* fill default values */
 102                header->SystemId = 211;
 103                header->MAC1[0] = 0x00;
 104                header->MAC1[1] = 0x00;
 105                header->MAC1[2] = 0x00;
 106                header->MAC1[3] = 0x00;
 107                header->MAC1[4] = 0x00;
 108                header->MAC1[5] = 0x01;
 109
 110                header->MAC2[0] = 0x00;
 111                header->MAC2[1] = 0x00;
 112                header->MAC2[2] = 0x00;
 113                header->MAC2[3] = 0x00;
 114                header->MAC2[4] = 0x00;
 115                header->MAC2[5] = 0x02;
 116
 117                header->MAC3[0] = 0x00;
 118                header->MAC3[1] = 0x00;
 119                header->MAC3[2] = 0x00;
 120                header->MAC3[3] = 0x00;
 121                header->MAC3[4] = 0x00;
 122                header->MAC3[5] = 0x03;
 123        }
 124
 125        return 0;
 126}
 127
 128#if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
 129
 130static const struct ddr_data ddr3_baltos_data = {
 131        .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 132        .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 133        .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 134        .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 135};
 136
 137static const struct cmd_control ddr3_baltos_cmd_ctrl_data = {
 138        .cmd0csratio = MT41K256M16HA125E_RATIO,
 139        .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 140
 141        .cmd1csratio = MT41K256M16HA125E_RATIO,
 142        .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 143
 144        .cmd2csratio = MT41K256M16HA125E_RATIO,
 145        .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 146};
 147
 148static struct emif_regs ddr3_baltos_emif_reg_data = {
 149        .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 150        .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 151        .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 152        .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 153        .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 154        .zq_config = MT41K256M16HA125E_ZQ_CFG,
 155        .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 156};
 157
 158#ifdef CONFIG_SPL_OS_BOOT
 159int spl_start_uboot(void)
 160{
 161        /* break into full u-boot on 'c' */
 162        return (serial_tstc() && serial_getc() == 'c');
 163}
 164#endif
 165
 166#define OSC     (V_OSCK/1000000)
 167const struct dpll_params dpll_ddr = {
 168                266, OSC-1, 1, -1, -1, -1, -1};
 169const struct dpll_params dpll_ddr_evm_sk = {
 170                303, OSC-1, 1, -1, -1, -1, -1};
 171const struct dpll_params dpll_ddr_baltos = {
 172                400, OSC-1, 1, -1, -1, -1, -1};
 173
 174void am33xx_spl_board_init(void)
 175{
 176        int mpu_vdd;
 177        int sil_rev;
 178
 179        /* Get the frequency */
 180        dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 181
 182        /*
 183         * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 184         * MPU frequencies we support we use a CORE voltage of
 185         * 1.1375V.  For MPU voltage we need to switch based on
 186         * the frequency we are running at.
 187         */
 188        i2c_set_bus_num(1);
 189
 190        printf("I2C speed: %d Hz\n", CONFIG_SYS_I2C_SPEED);
 191
 192        if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
 193                puts("i2c: cannot access TPS65910\n");
 194                return;
 195        }
 196
 197        /*
 198         * Depending on MPU clock and PG we will need a different
 199         * VDD to drive at that speed.
 200         */
 201        sil_rev = readl(&cdev->deviceid) >> 28;
 202        mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 203                                              dpll_mpu_opp100.m);
 204
 205        /* Tell the TPS65910 to use i2c */
 206        tps65910_set_i2c_control();
 207
 208        /* First update MPU voltage. */
 209        if (tps65910_voltage_update(MPU, mpu_vdd))
 210                return;
 211
 212        /* Second, update the CORE voltage. */
 213        if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 214                return;
 215
 216        /* Set CORE Frequencies to OPP100 */
 217        do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 218
 219        /* Set MPU Frequency to what we detected now that voltages are set */
 220        do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 221
 222        writel(0x000010ff, PRM_DEVICE_INST + 4);
 223}
 224
 225const struct dpll_params *get_dpll_ddr_params(void)
 226{
 227        enable_i2c1_pin_mux();
 228        i2c_set_bus_num(1);
 229
 230        return &dpll_ddr_baltos;
 231}
 232
 233void set_uart_mux_conf(void)
 234{
 235        enable_uart0_pin_mux();
 236}
 237
 238void set_mux_conf_regs(void)
 239{
 240        enable_board_pin_mux();
 241}
 242
 243const struct ctrl_ioregs ioregs_baltos = {
 244        .cm0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 245        .cm1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 246        .cm2ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 247        .dt0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 248        .dt1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 249};
 250
 251void sdram_init(void)
 252{
 253        config_ddr(400, &ioregs_baltos,
 254                   &ddr3_baltos_data,
 255                   &ddr3_baltos_cmd_ctrl_data,
 256                   &ddr3_baltos_emif_reg_data, 0);
 257}
 258#endif
 259
 260/*
 261 * Basic board specific setup.  Pinmux has been handled already.
 262 */
 263int board_init(void)
 264{
 265#if defined(CONFIG_HW_WATCHDOG)
 266        hw_watchdog_init();
 267#endif
 268
 269        gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 270#if defined(CONFIG_NOR) || defined(CONFIG_MTD_RAW_NAND)
 271        gpmc_init();
 272#endif
 273        return 0;
 274}
 275
 276int ft_board_setup(void *blob, struct bd_info *bd)
 277{
 278        int node, ret;
 279        unsigned char mac_addr[6];
 280        BSP_VS_HWPARAM header;
 281
 282        /* get production data */
 283        if (read_eeprom(&header))
 284                return 0;
 285
 286        /* setup MAC1 */
 287        mac_addr[0] = header.MAC1[0];
 288        mac_addr[1] = header.MAC1[1];
 289        mac_addr[2] = header.MAC1[2];
 290        mac_addr[3] = header.MAC1[3];
 291        mac_addr[4] = header.MAC1[4];
 292        mac_addr[5] = header.MAC1[5];
 293
 294
 295        node = fdt_path_offset(blob, "ethernet0");
 296        if (node < 0) {
 297                printf("no ethernet0 path offset\n");
 298                return -ENODEV;
 299        }
 300
 301        ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
 302        if (ret) {
 303                printf("error setting mac-address property\n");
 304                return -ENODEV;
 305        }
 306
 307        /* setup MAC2 */
 308        mac_addr[0] = header.MAC2[0];
 309        mac_addr[1] = header.MAC2[1];
 310        mac_addr[2] = header.MAC2[2];
 311        mac_addr[3] = header.MAC2[3];
 312        mac_addr[4] = header.MAC2[4];
 313        mac_addr[5] = header.MAC2[5];
 314
 315        node = fdt_path_offset(blob, "ethernet1");
 316        if (node < 0) {
 317                printf("no ethernet1 path offset\n");
 318                return -ENODEV;
 319        }
 320
 321        ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
 322        if (ret) {
 323                printf("error setting mac-address property\n");
 324                return -ENODEV;
 325        }
 326
 327        printf("\nFDT was successfully setup\n");
 328
 329        return 0;
 330}
 331
 332static struct module_pin_mux pcie_sw_pin_mux[] = {
 333        {OFFSET(mii1_rxdv), (MODE(7) | PULLUDEN )},     /* GPIO3_4 */
 334        {-1},
 335};
 336
 337static struct module_pin_mux dip_pin_mux[] = {
 338        {OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )},     /* GPIO1_12 */
 339        {OFFSET(gpmc_ad13), (MODE(7)  | RXACTIVE )},    /* GPIO1_13 */
 340        {OFFSET(gpmc_ad14), (MODE(7)  | RXACTIVE )},    /* GPIO1_14 */
 341        {OFFSET(gpmc_ad15), (MODE(7)  | RXACTIVE )},    /* GPIO1_15 */
 342        {-1},
 343};
 344
 345#ifdef CONFIG_BOARD_LATE_INIT
 346int board_late_init(void)
 347{
 348#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 349        BSP_VS_HWPARAM header;
 350        char model[4];
 351
 352        /* get production data */
 353        if (read_eeprom(&header)) {
 354                strcpy(model, "211");
 355        } else {
 356                sprintf(model, "%d", header.SystemId);
 357                if (header.SystemId == 215) {
 358                        configure_module_pin_mux(dip_pin_mux);
 359                        baltos_set_console();
 360                }
 361        }
 362
 363        /* turn power for the mPCIe slot */
 364        configure_module_pin_mux(pcie_sw_pin_mux);
 365        if (gpio_request(MPCIE_SW, "mpcie_sw")) {
 366                printf("failed to export GPIO %d\n", MPCIE_SW);
 367                return -ENODEV;
 368        }
 369        if (gpio_direction_output(MPCIE_SW, 1)) {
 370                printf("failed to set GPIO %d direction\n", MPCIE_SW);
 371                return -ENODEV;
 372        }
 373
 374        env_set("board_name", model);
 375#endif
 376
 377        return 0;
 378}
 379#endif
 380
 381#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 382        (defined(CONFIG_SPL_ETH) && defined(CONFIG_SPL_BUILD))
 383static void cpsw_control(int enabled)
 384{
 385        /* VTP can be added here */
 386
 387        return;
 388}
 389
 390static struct cpsw_slave_data cpsw_slaves[] = {
 391        {
 392                .slave_reg_ofs  = 0x208,
 393                .sliver_reg_ofs = 0xd80,
 394                .phy_addr       = 0,
 395        },
 396        {
 397                .slave_reg_ofs  = 0x308,
 398                .sliver_reg_ofs = 0xdc0,
 399                .phy_addr       = 7,
 400        },
 401};
 402
 403static struct cpsw_platform_data cpsw_data = {
 404        .mdio_base              = CPSW_MDIO_BASE,
 405        .cpsw_base              = CPSW_BASE,
 406        .mdio_div               = 0xff,
 407        .channels               = 8,
 408        .cpdma_reg_ofs          = 0x800,
 409        .slaves                 = 2,
 410        .slave_data             = cpsw_slaves,
 411        .active_slave           = 1,
 412        .ale_reg_ofs            = 0xd00,
 413        .ale_entries            = 1024,
 414        .host_port_reg_ofs      = 0x108,
 415        .hw_stats_reg_ofs       = 0x900,
 416        .bd_ram_ofs             = 0x2000,
 417        .mac_control            = (1 << 5),
 418        .control                = cpsw_control,
 419        .host_port_num          = 0,
 420        .version                = CPSW_CTRL_VERSION_2,
 421};
 422#endif
 423
 424#if ((defined(CONFIG_SPL_ETH) || defined(CONFIG_SPL_USB_ETHER)) \
 425                && defined(CONFIG_SPL_BUILD)) || \
 426        ((defined(CONFIG_DRIVER_TI_CPSW) || \
 427          defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \
 428         !defined(CONFIG_SPL_BUILD))
 429int board_eth_init(struct bd_info *bis)
 430{
 431        int rv, n = 0;
 432        uint8_t mac_addr[6];
 433        uint32_t mac_hi, mac_lo;
 434
 435        /*
 436         * Note here that we're using CPSW1 since that has a 1Gbit PHY while
 437         * CSPW0 has a 100Mbit PHY.
 438         *
 439         * On product, CPSW1 maps to port labeled WAN.
 440         */
 441
 442        /* try reading mac address from efuse */
 443        mac_lo = readl(&cdev->macid1l);
 444        mac_hi = readl(&cdev->macid1h);
 445        mac_addr[0] = mac_hi & 0xFF;
 446        mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 447        mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 448        mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 449        mac_addr[4] = mac_lo & 0xFF;
 450        mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 451
 452#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 453        (defined(CONFIG_SPL_ETH) && defined(CONFIG_SPL_BUILD))
 454        if (!env_get("ethaddr")) {
 455                printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 456
 457                if (is_valid_ethaddr(mac_addr))
 458                        eth_env_set_enetaddr("ethaddr", mac_addr);
 459        }
 460
 461#ifdef CONFIG_DRIVER_TI_CPSW
 462        writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel);
 463        cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII;
 464        rv = cpsw_register(&cpsw_data);
 465        if (rv < 0)
 466                printf("Error %d registering CPSW switch\n", rv);
 467        else
 468                n += rv;
 469#endif
 470
 471        /*
 472         *
 473         * CPSW RGMII Internal Delay Mode is not supported in all PVT
 474         * operating points.  So we must set the TX clock delay feature
 475         * in the AR8051 PHY.  Since we only support a single ethernet
 476         * device in U-Boot, we only do this for the first instance.
 477         */
 478#define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 479#define AR8051_PHY_DEBUG_DATA_REG       0x1e
 480#define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 481#define AR8051_RGMII_TX_CLK_DLY         0x100
 482        const char *devname;
 483        devname = miiphy_get_current_dev();
 484
 485        miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG,
 486                        AR8051_DEBUG_RGMII_CLK_DLY_REG);
 487        miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG,
 488                        AR8051_RGMII_TX_CLK_DLY);
 489#endif
 490        return n;
 491}
 492#endif
 493