board/vscom/baltos/board.c

   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
  37 DECLARE_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
  44 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  45
  46 static 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                 env_set("console", "ttyUSB0,115200n8");
  72
  73         return 0;
  74 }
  75
  76 static 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
 129 static 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
 136 static 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
 147 static 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
 158 int 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)
 166 const struct dpll_params dpll_ddr = {
 167                 266, OSC-1, 1, -1, -1, -1, -1};
 168 const struct dpll_params dpll_ddr_evm_sk = {
 169                 303, OSC-1, 1, -1, -1, -1, -1};
 170 const struct dpll_params dpll_ddr_baltos = {
 171                 400, OSC-1, 1, -1, -1, -1, -1};
 172
 173 void 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
 224 const 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
 232 void set_uart_mux_conf(void)
 233 {
 234         enable_uart0_pin_mux();
 235 }
 236
 237 void set_mux_conf_regs(void)
 238 {
 239         enable_board_pin_mux();
 240 }
 241
 242 const 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
 250 void 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  */
 265 int 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
 278 int 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
 334 static struct module_pin_mux pcie_sw_pin_mux[] = {
 335         {OFFSET(mii1_rxdv), (MODE(7) | PULLUDEN )},     /* GPIO3_4 */
 336         {-1},
 337 };
 338
 339 static 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
 348 int 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         env_set("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))
 385 static void cpsw_control(int enabled)
 386 {
 387         /* VTP can be added here */
 388
 389         return;
 390 }
 391
 392 static 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
 405 static 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))
 431 int 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 (!env_get("ethaddr")) {
 457                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 458
 459                 if (is_valid_ethaddr(mac_addr))
 460                         eth_env_set_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