board/ti/am335x/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 <spl.h>
  14 #include <asm/arch/cpu.h>
  15 #include <asm/arch/hardware.h>
  16 #include <asm/arch/omap.h>
  17 #include <asm/arch/ddr_defs.h>
  18 #include <asm/arch/clock.h>
  19 #include <asm/arch/gpio.h>
  20 #include <asm/arch/mmc_host_def.h>
  21 #include <asm/arch/sys_proto.h>
  22 #include <asm/arch/mem.h>
  23 #include <asm/io.h>
  24 #include <asm/emif.h>
  25 #include <asm/gpio.h>
  26 #include <i2c.h>
  27 #include <miiphy.h>
  28 #include <cpsw.h>
  29 #include <power/tps65217.h>
  30 #include <power/tps65910.h>
  31 #include <environment.h>
  32 #include <watchdog.h>
  33 #include "board.h"
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 /* GPIO that controls power to DDR on EVM-SK */
  38 #define GPIO_DDR_VTT_EN         7
  39
  40 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  41
  42 /*
  43  * Read header information from EEPROM into global structure.
  44  */
  45 static int read_eeprom(struct am335x_baseboard_id *header)
  46 {
  47         /* Check if baseboard eeprom is available */
  48         if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  49                 puts("Could not probe the EEPROM; something fundamentally "
  50                         "wrong on the I2C bus.\n");
  51                 return -ENODEV;
  52         }
  53
  54         /* read the eeprom using i2c */
  55         if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
  56                      sizeof(struct am335x_baseboard_id))) {
  57                 puts("Could not read the EEPROM; something fundamentally"
  58                         " wrong on the I2C bus.\n");
  59                 return -EIO;
  60         }
  61
  62         if (header->magic != 0xEE3355AA) {
  63                 /*
  64                  * read the eeprom using i2c again,
  65                  * but use only a 1 byte address
  66                  */
  67                 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
  68                              sizeof(struct am335x_baseboard_id))) {
  69                         puts("Could not read the EEPROM; something "
  70                                 "fundamentally wrong on the I2C bus.\n");
  71                         return -EIO;
  72                 }
  73
  74                 if (header->magic != 0xEE3355AA) {
  75                         printf("Incorrect magic number (0x%x) in EEPROM\n",
  76                                         header->magic);
  77                         return -EINVAL;
  78                 }
  79         }
  80
  81         return 0;
  82 }
  83
  84 #if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT)
  85 static const struct ddr_data ddr2_data = {
  86         .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
  87                           (MT47H128M16RT25E_RD_DQS<<20) |
  88                           (MT47H128M16RT25E_RD_DQS<<10) |
  89                           (MT47H128M16RT25E_RD_DQS<<0)),
  90         .datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) |
  91                           (MT47H128M16RT25E_WR_DQS<<20) |
  92                           (MT47H128M16RT25E_WR_DQS<<10) |
  93                           (MT47H128M16RT25E_WR_DQS<<0)),
  94         .datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) |
  95                          (MT47H128M16RT25E_PHY_WRLVL<<20) |
  96                          (MT47H128M16RT25E_PHY_WRLVL<<10) |
  97                          (MT47H128M16RT25E_PHY_WRLVL<<0)),
  98         .datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) |
  99                          (MT47H128M16RT25E_PHY_GATELVL<<20) |
 100                          (MT47H128M16RT25E_PHY_GATELVL<<10) |
 101                          (MT47H128M16RT25E_PHY_GATELVL<<0)),
 102         .datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) |
 103                           (MT47H128M16RT25E_PHY_FIFO_WE<<20) |
 104                           (MT47H128M16RT25E_PHY_FIFO_WE<<10) |
 105                           (MT47H128M16RT25E_PHY_FIFO_WE<<0)),
 106         .datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) |
 107                           (MT47H128M16RT25E_PHY_WR_DATA<<20) |
 108                           (MT47H128M16RT25E_PHY_WR_DATA<<10) |
 109                           (MT47H128M16RT25E_PHY_WR_DATA<<0)),
 110         .datauserank0delay = MT47H128M16RT25E_PHY_RANK0_DELAY,
 111         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 112 };
 113
 114 static const struct cmd_control ddr2_cmd_ctrl_data = {
 115         .cmd0csratio = MT47H128M16RT25E_RATIO,
 116         .cmd0dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 117         .cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 118
 119         .cmd1csratio = MT47H128M16RT25E_RATIO,
 120         .cmd1dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 121         .cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 122
 123         .cmd2csratio = MT47H128M16RT25E_RATIO,
 124         .cmd2dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 125         .cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 126 };
 127
 128 static const struct emif_regs ddr2_emif_reg_data = {
 129         .sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
 130         .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
 131         .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
 132         .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
 133         .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
 134         .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
 135 };
 136
 137 static const struct ddr_data ddr3_data = {
 138         .datardsratio0 = MT41J128MJT125_RD_DQS,
 139         .datawdsratio0 = MT41J128MJT125_WR_DQS,
 140         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
 141         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
 142         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 143 };
 144
 145 static const struct ddr_data ddr3_beagleblack_data = {
 146         .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 147         .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 148         .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 149         .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 150         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 151 };
 152
 153 static const struct ddr_data ddr3_evm_data = {
 154         .datardsratio0 = MT41J512M8RH125_RD_DQS,
 155         .datawdsratio0 = MT41J512M8RH125_WR_DQS,
 156         .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
 157         .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
 158         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 159 };
 160
 161 static const struct cmd_control ddr3_cmd_ctrl_data = {
 162         .cmd0csratio = MT41J128MJT125_RATIO,
 163         .cmd0dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 164         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
 165
 166         .cmd1csratio = MT41J128MJT125_RATIO,
 167         .cmd1dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 168         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
 169
 170         .cmd2csratio = MT41J128MJT125_RATIO,
 171         .cmd2dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 172         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
 173 };
 174
 175 static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = {
 176         .cmd0csratio = MT41K256M16HA125E_RATIO,
 177         .cmd0dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 178         .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 179
 180         .cmd1csratio = MT41K256M16HA125E_RATIO,
 181         .cmd1dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 182         .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 183
 184         .cmd2csratio = MT41K256M16HA125E_RATIO,
 185         .cmd2dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 186         .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 187 };
 188
 189 static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
 190         .cmd0csratio = MT41J512M8RH125_RATIO,
 191         .cmd0dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 192         .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 193
 194         .cmd1csratio = MT41J512M8RH125_RATIO,
 195         .cmd1dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 196         .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 197
 198         .cmd2csratio = MT41J512M8RH125_RATIO,
 199         .cmd2dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 200         .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 201 };
 202
 203 static struct emif_regs ddr3_emif_reg_data = {
 204         .sdram_config = MT41J128MJT125_EMIF_SDCFG,
 205         .ref_ctrl = MT41J128MJT125_EMIF_SDREF,
 206         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
 207         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 208         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 209         .zq_config = MT41J128MJT125_ZQ_CFG,
 210         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
 211                                 PHY_EN_DYN_PWRDN,
 212 };
 213
 214 static struct emif_regs ddr3_beagleblack_emif_reg_data = {
 215         .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 216         .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 217         .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 218         .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 219         .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 220         .zq_config = MT41K256M16HA125E_ZQ_CFG,
 221         .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 222 };
 223
 224 static struct emif_regs ddr3_evm_emif_reg_data = {
 225         .sdram_config = MT41J512M8RH125_EMIF_SDCFG,
 226         .ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
 227         .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
 228         .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 229         .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 230         .zq_config = MT41J512M8RH125_ZQ_CFG,
 231         .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
 232                                 PHY_EN_DYN_PWRDN,
 233 };
 234
 235 #ifdef CONFIG_SPL_OS_BOOT
 236 int spl_start_uboot(void)
 237 {
 238         /* break into full u-boot on 'c' */
 239         return (serial_tstc() && serial_getc() == 'c');
 240 }
 241 #endif
 242
 243 #define OSC     (V_OSCK/1000000)
 244 const struct dpll_params dpll_ddr = {
 245                 266, OSC-1, 1, -1, -1, -1, -1};
 246 const struct dpll_params dpll_ddr_evm_sk = {
 247                 303, OSC-1, 1, -1, -1, -1, -1};
 248 const struct dpll_params dpll_ddr_bone_black = {
 249                 400, OSC-1, 1, -1, -1, -1, -1};
 250
 251 void am33xx_spl_board_init(void)
 252 {
 253         struct am335x_baseboard_id header;
 254         int mpu_vdd;
 255
 256         if (read_eeprom(&header) < 0)
 257                 puts("Could not get board ID.\n");
 258
 259         /* Get the frequency */
 260         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 261
 262         if (board_is_bone(&header) || board_is_bone_lt(&header)) {
 263                 /* BeagleBone PMIC Code */
 264                 int usb_cur_lim;
 265
 266                 /*
 267                  * Only perform PMIC configurations if board rev > A1
 268                  * on Beaglebone White
 269                  */
 270                 if (board_is_bone(&header) && !strncmp(header.version,
 271                                                        "00A1", 4))
 272                         return;
 273
 274                 if (i2c_probe(TPS65217_CHIP_PM))
 275                         return;
 276
 277                 /*
 278                  * On Beaglebone White we need to ensure we have AC power
 279                  * before increasing the frequency.
 280                  */
 281                 if (board_is_bone(&header)) {
 282                         uchar pmic_status_reg;
 283                         if (tps65217_reg_read(TPS65217_STATUS,
 284                                               &pmic_status_reg))
 285                                 return;
 286                         if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) {
 287                                 puts("No AC power, disabling frequency switch\n");
 288                                 return;
 289                         }
 290                 }
 291
 292                 /*
 293                  * Override what we have detected since we know if we have
 294                  * a Beaglebone Black it supports 1GHz.
 295                  */
 296                 if (board_is_bone_lt(&header))
 297                         dpll_mpu_opp100.m = MPUPLL_M_1000;
 298
 299                 /*
 300                  * Increase USB current limit to 1300mA or 1800mA and set
 301                  * the MPU voltage controller as needed.
 302                  */
 303                 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 304                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 305                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 306                 } else {
 307                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 308                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 309                 }
 310
 311                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 312                                        TPS65217_POWER_PATH,
 313                                        usb_cur_lim,
 314                                        TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 315                         puts("tps65217_reg_write failure\n");
 316
 317                 /* Set DCDC3 (CORE) voltage to 1.125V */
 318                 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 319                                             TPS65217_DCDC_VOLT_SEL_1125MV)) {
 320                         puts("tps65217_voltage_update failure\n");
 321                         return;
 322                 }
 323
 324                 /* Set CORE Frequencies to OPP100 */
 325                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 326
 327                 /* Set DCDC2 (MPU) voltage */
 328                 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 329                         puts("tps65217_voltage_update failure\n");
 330                         return;
 331                 }
 332
 333                 /*
 334                  * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
 335                  * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
 336                  */
 337                 if (board_is_bone(&header)) {
 338                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 339                                                TPS65217_DEFLS1,
 340                                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 341                                                TPS65217_LDO_MASK))
 342                                 puts("tps65217_reg_write failure\n");
 343                 } else {
 344                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 345                                                TPS65217_DEFLS1,
 346                                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 347                                                TPS65217_LDO_MASK))
 348                                 puts("tps65217_reg_write failure\n");
 349                 }
 350
 351                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 352                                        TPS65217_DEFLS2,
 353                                        TPS65217_LDO_VOLTAGE_OUT_3_3,
 354                                        TPS65217_LDO_MASK))
 355                         puts("tps65217_reg_write failure\n");
 356         } else {
 357                 int sil_rev;
 358
 359                 /*
 360                  * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 361                  * MPU frequencies we support we use a CORE voltage of
 362                  * 1.1375V.  For MPU voltage we need to switch based on
 363                  * the frequency we are running at.
 364                  */
 365                 if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
 366                         return;
 367
 368                 /*
 369                  * Depending on MPU clock and PG we will need a different
 370                  * VDD to drive at that speed.
 371                  */
 372                 sil_rev = readl(&cdev->deviceid) >> 28;
 373                 mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 374                                                       dpll_mpu_opp100.m);
 375
 376                 /* Tell the TPS65910 to use i2c */
 377                 tps65910_set_i2c_control();
 378
 379                 /* First update MPU voltage. */
 380                 if (tps65910_voltage_update(MPU, mpu_vdd))
 381                         return;
 382
 383                 /* Second, update the CORE voltage. */
 384                 if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 385                         return;
 386
 387                 /* Set CORE Frequencies to OPP100 */
 388                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 389         }
 390
 391         /* Set MPU Frequency to what we detected now that voltages are set */
 392         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 393 }
 394
 395 const struct dpll_params *get_dpll_ddr_params(void)
 396 {
 397         struct am335x_baseboard_id header;
 398
 399         enable_i2c0_pin_mux();
 400         i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 401         if (read_eeprom(&header) < 0)
 402                 puts("Could not get board ID.\n");
 403
 404         if (board_is_evm_sk(&header))
 405                 return &dpll_ddr_evm_sk;
 406         else if (board_is_bone_lt(&header))
 407                 return &dpll_ddr_bone_black;
 408         else if (board_is_evm_15_or_later(&header))
 409                 return &dpll_ddr_evm_sk;
 410         else
 411                 return &dpll_ddr;
 412 }
 413
 414 void set_uart_mux_conf(void)
 415 {
 416 #ifdef CONFIG_SERIAL1
 417         enable_uart0_pin_mux();
 418 #endif /* CONFIG_SERIAL1 */
 419 #ifdef CONFIG_SERIAL2
 420         enable_uart1_pin_mux();
 421 #endif /* CONFIG_SERIAL2 */
 422 #ifdef CONFIG_SERIAL3
 423         enable_uart2_pin_mux();
 424 #endif /* CONFIG_SERIAL3 */
 425 #ifdef CONFIG_SERIAL4
 426         enable_uart3_pin_mux();
 427 #endif /* CONFIG_SERIAL4 */
 428 #ifdef CONFIG_SERIAL5
 429         enable_uart4_pin_mux();
 430 #endif /* CONFIG_SERIAL5 */
 431 #ifdef CONFIG_SERIAL6
 432         enable_uart5_pin_mux();
 433 #endif /* CONFIG_SERIAL6 */
 434 }
 435
 436 void set_mux_conf_regs(void)
 437 {
 438         __maybe_unused struct am335x_baseboard_id header;
 439
 440         if (read_eeprom(&header) < 0)
 441                 puts("Could not get board ID.\n");
 442
 443         enable_board_pin_mux(&header);
 444 }
 445
 446 void sdram_init(void)
 447 {
 448         __maybe_unused struct am335x_baseboard_id header;
 449
 450         if (read_eeprom(&header) < 0)
 451                 puts("Could not get board ID.\n");
 452
 453         if (board_is_evm_sk(&header)) {
 454                 /*
 455                  * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 456                  * This is safe enough to do on older revs.
 457                  */
 458                 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 459                 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 460         }
 461
 462         if (board_is_evm_sk(&header))
 463                 config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
 464                            &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 465         else if (board_is_bone_lt(&header))
 466                 config_ddr(400, MT41K256M16HA125E_IOCTRL_VALUE,
 467                            &ddr3_beagleblack_data,
 468                            &ddr3_beagleblack_cmd_ctrl_data,
 469                            &ddr3_beagleblack_emif_reg_data, 0);
 470         else if (board_is_evm_15_or_later(&header))
 471                 config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
 472                            &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 473         else
 474                 config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data,
 475                            &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
 476 }
 477 #endif
 478
 479 /*
 480  * Basic board specific setup.  Pinmux has been handled already.
 481  */
 482 int board_init(void)
 483 {
 484 #if defined(CONFIG_HW_WATCHDOG)
 485         hw_watchdog_init();
 486 #endif
 487
 488         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 489 #if defined(CONFIG_NOR) || defined(CONFIG_NAND)
 490         gpmc_init();
 491 #endif
 492         return 0;
 493 }
 494
 495 #ifdef CONFIG_BOARD_LATE_INIT
 496 int board_late_init(void)
 497 {
 498 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 499         char safe_string[HDR_NAME_LEN + 1];
 500         struct am335x_baseboard_id header;
 501
 502         if (read_eeprom(&header) < 0)
 503                 puts("Could not get board ID.\n");
 504
 505         /* Now set variables based on the header. */
 506         strncpy(safe_string, (char *)header.name, sizeof(header.name));
 507         safe_string[sizeof(header.name)] = 0;
 508         setenv("board_name", safe_string);
 509
 510         strncpy(safe_string, (char *)header.version, sizeof(header.version));
 511         safe_string[sizeof(header.version)] = 0;
 512         setenv("board_rev", safe_string);
 513 #endif
 514
 515         return 0;
 516 }
 517 #endif
 518
 519 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 520         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 521 static void cpsw_control(int enabled)
 522 {
 523         /* VTP can be added here */
 524
 525         return;
 526 }
 527
 528 static struct cpsw_slave_data cpsw_slaves[] = {
 529         {
 530                 .slave_reg_ofs  = 0x208,
 531                 .sliver_reg_ofs = 0xd80,
 532                 .phy_id         = 0,
 533         },
 534         {
 535                 .slave_reg_ofs  = 0x308,
 536                 .sliver_reg_ofs = 0xdc0,
 537                 .phy_id         = 1,
 538         },
 539 };
 540
 541 static struct cpsw_platform_data cpsw_data = {
 542         .mdio_base              = CPSW_MDIO_BASE,
 543         .cpsw_base              = CPSW_BASE,
 544         .mdio_div               = 0xff,
 545         .channels               = 8,
 546         .cpdma_reg_ofs          = 0x800,
 547         .slaves                 = 1,
 548         .slave_data             = cpsw_slaves,
 549         .ale_reg_ofs            = 0xd00,
 550         .ale_entries            = 1024,
 551         .host_port_reg_ofs      = 0x108,
 552         .hw_stats_reg_ofs       = 0x900,
 553         .bd_ram_ofs             = 0x2000,
 554         .mac_control            = (1 << 5),
 555         .control                = cpsw_control,
 556         .host_port_num          = 0,
 557         .version                = CPSW_CTRL_VERSION_2,
 558 };
 559 #endif
 560
 561 #if defined(CONFIG_DRIVER_TI_CPSW) || \
 562         (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
 563 int board_eth_init(bd_t *bis)
 564 {
 565         int rv, n = 0;
 566         uint8_t mac_addr[6];
 567         uint32_t mac_hi, mac_lo;
 568         __maybe_unused struct am335x_baseboard_id header;
 569
 570         /* try reading mac address from efuse */
 571         mac_lo = readl(&cdev->macid0l);
 572         mac_hi = readl(&cdev->macid0h);
 573         mac_addr[0] = mac_hi & 0xFF;
 574         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 575         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 576         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 577         mac_addr[4] = mac_lo & 0xFF;
 578         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 579
 580 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 581         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 582         if (!getenv("ethaddr")) {
 583                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 584
 585                 if (is_valid_ether_addr(mac_addr))
 586                         eth_setenv_enetaddr("ethaddr", mac_addr);
 587         }
 588
 589 #ifdef CONFIG_DRIVER_TI_CPSW
 590         if (read_eeprom(&header) < 0)
 591                 puts("Could not get board ID.\n");
 592
 593         if (board_is_bone(&header) || board_is_bone_lt(&header) ||
 594             board_is_idk(&header)) {
 595                 writel(MII_MODE_ENABLE, &cdev->miisel);
 596                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 597                                 PHY_INTERFACE_MODE_MII;
 598         } else {
 599                 writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
 600                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 601                                 PHY_INTERFACE_MODE_RGMII;
 602         }
 603
 604         rv = cpsw_register(&cpsw_data);
 605         if (rv < 0)
 606                 printf("Error %d registering CPSW switch\n", rv);
 607         else
 608                 n += rv;
 609 #endif
 610
 611         /*
 612          *
 613          * CPSW RGMII Internal Delay Mode is not supported in all PVT
 614          * operating points.  So we must set the TX clock delay feature
 615          * in the AR8051 PHY.  Since we only support a single ethernet
 616          * device in U-Boot, we only do this for the first instance.
 617          */
 618 #define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 619 #define AR8051_PHY_DEBUG_DATA_REG       0x1e
 620 #define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 621 #define AR8051_RGMII_TX_CLK_DLY         0x100
 622
 623         if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) {
 624                 const char *devname;
 625                 devname = miiphy_get_current_dev();
 626
 627                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG,
 628                                 AR8051_DEBUG_RGMII_CLK_DLY_REG);
 629                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG,
 630                                 AR8051_RGMII_TX_CLK_DLY);
 631         }
 632 #endif
 633 #if defined(CONFIG_USB_ETHER) && \
 634         (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
 635         if (is_valid_ether_addr(mac_addr))
 636                 eth_setenv_enetaddr("usbnet_devaddr", mac_addr);
 637
 638         rv = usb_eth_initialize(bis);
 639         if (rv < 0)
 640                 printf("Error %d registering USB_ETHER\n", rv);
 641         else
 642                 n += rv;
 643 #endif
 644         return n;
 645 }
 646 #endif