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 };
 111
 112 static const struct cmd_control ddr2_cmd_ctrl_data = {
 113         .cmd0csratio = MT47H128M16RT25E_RATIO,
 114         .cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 115
 116         .cmd1csratio = MT47H128M16RT25E_RATIO,
 117         .cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 118
 119         .cmd2csratio = MT47H128M16RT25E_RATIO,
 120         .cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 121 };
 122
 123 static const struct emif_regs ddr2_emif_reg_data = {
 124         .sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
 125         .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
 126         .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
 127         .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
 128         .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
 129         .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
 130 };
 131
 132 static const struct ddr_data ddr3_data = {
 133         .datardsratio0 = MT41J128MJT125_RD_DQS,
 134         .datawdsratio0 = MT41J128MJT125_WR_DQS,
 135         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
 136         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
 137 };
 138
 139 static const struct ddr_data ddr3_beagleblack_data = {
 140         .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 141         .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 142         .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 143         .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 144 };
 145
 146 static const struct ddr_data ddr3_evm_data = {
 147         .datardsratio0 = MT41J512M8RH125_RD_DQS,
 148         .datawdsratio0 = MT41J512M8RH125_WR_DQS,
 149         .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
 150         .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
 151 };
 152
 153 static const struct cmd_control ddr3_cmd_ctrl_data = {
 154         .cmd0csratio = MT41J128MJT125_RATIO,
 155         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
 156
 157         .cmd1csratio = MT41J128MJT125_RATIO,
 158         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
 159
 160         .cmd2csratio = MT41J128MJT125_RATIO,
 161         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
 162 };
 163
 164 static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = {
 165         .cmd0csratio = MT41K256M16HA125E_RATIO,
 166         .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 167
 168         .cmd1csratio = MT41K256M16HA125E_RATIO,
 169         .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 170
 171         .cmd2csratio = MT41K256M16HA125E_RATIO,
 172         .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 173 };
 174
 175 static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
 176         .cmd0csratio = MT41J512M8RH125_RATIO,
 177         .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 178
 179         .cmd1csratio = MT41J512M8RH125_RATIO,
 180         .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 181
 182         .cmd2csratio = MT41J512M8RH125_RATIO,
 183         .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 184 };
 185
 186 static struct emif_regs ddr3_emif_reg_data = {
 187         .sdram_config = MT41J128MJT125_EMIF_SDCFG,
 188         .ref_ctrl = MT41J128MJT125_EMIF_SDREF,
 189         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
 190         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 191         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 192         .zq_config = MT41J128MJT125_ZQ_CFG,
 193         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
 194                                 PHY_EN_DYN_PWRDN,
 195 };
 196
 197 static struct emif_regs ddr3_beagleblack_emif_reg_data = {
 198         .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 199         .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 200         .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 201         .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 202         .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 203         .zq_config = MT41K256M16HA125E_ZQ_CFG,
 204         .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 205 };
 206
 207 static struct emif_regs ddr3_evm_emif_reg_data = {
 208         .sdram_config = MT41J512M8RH125_EMIF_SDCFG,
 209         .ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
 210         .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
 211         .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 212         .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 213         .zq_config = MT41J512M8RH125_ZQ_CFG,
 214         .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
 215                                 PHY_EN_DYN_PWRDN,
 216 };
 217
 218 #ifdef CONFIG_SPL_OS_BOOT
 219 int spl_start_uboot(void)
 220 {
 221         /* break into full u-boot on 'c' */
 222         return (serial_tstc() && serial_getc() == 'c');
 223 }
 224 #endif
 225
 226 #define OSC     (V_OSCK/1000000)
 227 const struct dpll_params dpll_ddr = {
 228                 266, OSC-1, 1, -1, -1, -1, -1};
 229 const struct dpll_params dpll_ddr_evm_sk = {
 230                 303, OSC-1, 1, -1, -1, -1, -1};
 231 const struct dpll_params dpll_ddr_bone_black = {
 232                 400, OSC-1, 1, -1, -1, -1, -1};
 233
 234 void am33xx_spl_board_init(void)
 235 {
 236         struct am335x_baseboard_id header;
 237         int mpu_vdd;
 238
 239         if (read_eeprom(&header) < 0)
 240                 puts("Could not get board ID.\n");
 241
 242         /* Get the frequency */
 243         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 244
 245         if (board_is_bone(&header) || board_is_bone_lt(&header)) {
 246                 /* BeagleBone PMIC Code */
 247                 int usb_cur_lim;
 248
 249                 /*
 250                  * Only perform PMIC configurations if board rev > A1
 251                  * on Beaglebone White
 252                  */
 253                 if (board_is_bone(&header) && !strncmp(header.version,
 254                                                        "00A1", 4))
 255                         return;
 256
 257                 if (i2c_probe(TPS65217_CHIP_PM))
 258                         return;
 259
 260                 /*
 261                  * On Beaglebone White we need to ensure we have AC power
 262                  * before increasing the frequency.
 263                  */
 264                 if (board_is_bone(&header)) {
 265                         uchar pmic_status_reg;
 266                         if (tps65217_reg_read(TPS65217_STATUS,
 267                                               &pmic_status_reg))
 268                                 return;
 269                         if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) {
 270                                 puts("No AC power, disabling frequency switch\n");
 271                                 return;
 272                         }
 273                 }
 274
 275                 /*
 276                  * Override what we have detected since we know if we have
 277                  * a Beaglebone Black it supports 1GHz.
 278                  */
 279                 if (board_is_bone_lt(&header))
 280                         dpll_mpu_opp100.m = MPUPLL_M_1000;
 281
 282                 /*
 283                  * Increase USB current limit to 1300mA or 1800mA and set
 284                  * the MPU voltage controller as needed.
 285                  */
 286                 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 287                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 288                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 289                 } else {
 290                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 291                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 292                 }
 293
 294                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 295                                        TPS65217_POWER_PATH,
 296                                        usb_cur_lim,
 297                                        TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 298                         puts("tps65217_reg_write failure\n");
 299
 300                 /* Set DCDC3 (CORE) voltage to 1.125V */
 301                 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 302                                             TPS65217_DCDC_VOLT_SEL_1125MV)) {
 303                         puts("tps65217_voltage_update failure\n");
 304                         return;
 305                 }
 306
 307                 /* Set CORE Frequencies to OPP100 */
 308                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 309
 310                 /* Set DCDC2 (MPU) voltage */
 311                 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 312                         puts("tps65217_voltage_update failure\n");
 313                         return;
 314                 }
 315
 316                 /*
 317                  * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
 318                  * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
 319                  */
 320                 if (board_is_bone(&header)) {
 321                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 322                                                TPS65217_DEFLS1,
 323                                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 324                                                TPS65217_LDO_MASK))
 325                                 puts("tps65217_reg_write failure\n");
 326                 } else {
 327                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 328                                                TPS65217_DEFLS1,
 329                                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 330                                                TPS65217_LDO_MASK))
 331                                 puts("tps65217_reg_write failure\n");
 332                 }
 333
 334                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 335                                        TPS65217_DEFLS2,
 336                                        TPS65217_LDO_VOLTAGE_OUT_3_3,
 337                                        TPS65217_LDO_MASK))
 338                         puts("tps65217_reg_write failure\n");
 339         } else {
 340                 int sil_rev;
 341
 342                 /*
 343                  * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 344                  * MPU frequencies we support we use a CORE voltage of
 345                  * 1.1375V.  For MPU voltage we need to switch based on
 346                  * the frequency we are running at.
 347                  */
 348                 if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
 349                         return;
 350
 351                 /*
 352                  * Depending on MPU clock and PG we will need a different
 353                  * VDD to drive at that speed.
 354                  */
 355                 sil_rev = readl(&cdev->deviceid) >> 28;
 356                 mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 357                                                       dpll_mpu_opp100.m);
 358
 359                 /* Tell the TPS65910 to use i2c */
 360                 tps65910_set_i2c_control();
 361
 362                 /* First update MPU voltage. */
 363                 if (tps65910_voltage_update(MPU, mpu_vdd))
 364                         return;
 365
 366                 /* Second, update the CORE voltage. */
 367                 if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 368                         return;
 369
 370                 /* Set CORE Frequencies to OPP100 */
 371                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 372         }
 373
 374         /* Set MPU Frequency to what we detected now that voltages are set */
 375         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 376 }
 377
 378 const struct dpll_params *get_dpll_ddr_params(void)
 379 {
 380         struct am335x_baseboard_id header;
 381
 382         enable_i2c0_pin_mux();
 383         i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 384         if (read_eeprom(&header) < 0)
 385                 puts("Could not get board ID.\n");
 386
 387         if (board_is_evm_sk(&header))
 388                 return &dpll_ddr_evm_sk;
 389         else if (board_is_bone_lt(&header))
 390                 return &dpll_ddr_bone_black;
 391         else if (board_is_evm_15_or_later(&header))
 392                 return &dpll_ddr_evm_sk;
 393         else
 394                 return &dpll_ddr;
 395 }
 396
 397 void set_uart_mux_conf(void)
 398 {
 399 #ifdef CONFIG_SERIAL1
 400         enable_uart0_pin_mux();
 401 #endif /* CONFIG_SERIAL1 */
 402 #ifdef CONFIG_SERIAL2
 403         enable_uart1_pin_mux();
 404 #endif /* CONFIG_SERIAL2 */
 405 #ifdef CONFIG_SERIAL3
 406         enable_uart2_pin_mux();
 407 #endif /* CONFIG_SERIAL3 */
 408 #ifdef CONFIG_SERIAL4
 409         enable_uart3_pin_mux();
 410 #endif /* CONFIG_SERIAL4 */
 411 #ifdef CONFIG_SERIAL5
 412         enable_uart4_pin_mux();
 413 #endif /* CONFIG_SERIAL5 */
 414 #ifdef CONFIG_SERIAL6
 415         enable_uart5_pin_mux();
 416 #endif /* CONFIG_SERIAL6 */
 417 }
 418
 419 void set_mux_conf_regs(void)
 420 {
 421         __maybe_unused struct am335x_baseboard_id header;
 422
 423         if (read_eeprom(&header) < 0)
 424                 puts("Could not get board ID.\n");
 425
 426         enable_board_pin_mux(&header);
 427 }
 428
 429 const struct ctrl_ioregs ioregs_evmsk = {
 430         .cm0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 431         .cm1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 432         .cm2ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 433         .dt0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 434         .dt1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 435 };
 436
 437 const struct ctrl_ioregs ioregs_bonelt = {
 438         .cm0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 439         .cm1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 440         .cm2ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 441         .dt0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 442         .dt1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 443 };
 444
 445 const struct ctrl_ioregs ioregs_evm15 = {
 446         .cm0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 447         .cm1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 448         .cm2ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 449         .dt0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 450         .dt1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 451 };
 452
 453 const struct ctrl_ioregs ioregs = {
 454         .cm0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 455         .cm1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 456         .cm2ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 457         .dt0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 458         .dt1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 459 };
 460
 461 void sdram_init(void)
 462 {
 463         __maybe_unused struct am335x_baseboard_id header;
 464
 465         if (read_eeprom(&header) < 0)
 466                 puts("Could not get board ID.\n");
 467
 468         if (board_is_evm_sk(&header)) {
 469                 /*
 470                  * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 471                  * This is safe enough to do on older revs.
 472                  */
 473                 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 474                 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 475         }
 476
 477         if (board_is_evm_sk(&header))
 478                 config_ddr(303, &ioregs_evmsk, &ddr3_data,
 479                            &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 480         else if (board_is_bone_lt(&header))
 481                 config_ddr(400, &ioregs_bonelt,
 482                            &ddr3_beagleblack_data,
 483                            &ddr3_beagleblack_cmd_ctrl_data,
 484                            &ddr3_beagleblack_emif_reg_data, 0);
 485         else if (board_is_evm_15_or_later(&header))
 486                 config_ddr(303, &ioregs_evm15, &ddr3_evm_data,
 487                            &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 488         else
 489                 config_ddr(266, &ioregs, &ddr2_data,
 490                            &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
 491 }
 492 #endif
 493
 494 /*
 495  * Basic board specific setup.  Pinmux has been handled already.
 496  */
 497 int board_init(void)
 498 {
 499 #if defined(CONFIG_HW_WATCHDOG)
 500         hw_watchdog_init();
 501 #endif
 502
 503         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 504 #if defined(CONFIG_NOR) || defined(CONFIG_NAND)
 505         gpmc_init();
 506 #endif
 507         return 0;
 508 }
 509
 510 #ifdef CONFIG_BOARD_LATE_INIT
 511 int board_late_init(void)
 512 {
 513 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 514         char safe_string[HDR_NAME_LEN + 1];
 515         struct am335x_baseboard_id header;
 516
 517         if (read_eeprom(&header) < 0)
 518                 puts("Could not get board ID.\n");
 519
 520         /* Now set variables based on the header. */
 521         strncpy(safe_string, (char *)header.name, sizeof(header.name));
 522         safe_string[sizeof(header.name)] = 0;
 523         setenv("board_name", safe_string);
 524
 525         strncpy(safe_string, (char *)header.version, sizeof(header.version));
 526         safe_string[sizeof(header.version)] = 0;
 527         setenv("board_rev", safe_string);
 528 #endif
 529
 530         return 0;
 531 }
 532 #endif
 533
 534 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 535         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 536 static void cpsw_control(int enabled)
 537 {
 538         /* VTP can be added here */
 539
 540         return;
 541 }
 542
 543 static struct cpsw_slave_data cpsw_slaves[] = {
 544         {
 545                 .slave_reg_ofs  = 0x208,
 546                 .sliver_reg_ofs = 0xd80,
 547                 .phy_addr       = 0,
 548         },
 549         {
 550                 .slave_reg_ofs  = 0x308,
 551                 .sliver_reg_ofs = 0xdc0,
 552                 .phy_addr       = 1,
 553         },
 554 };
 555
 556 static struct cpsw_platform_data cpsw_data = {
 557         .mdio_base              = CPSW_MDIO_BASE,
 558         .cpsw_base              = CPSW_BASE,
 559         .mdio_div               = 0xff,
 560         .channels               = 8,
 561         .cpdma_reg_ofs          = 0x800,
 562         .slaves                 = 1,
 563         .slave_data             = cpsw_slaves,
 564         .ale_reg_ofs            = 0xd00,
 565         .ale_entries            = 1024,
 566         .host_port_reg_ofs      = 0x108,
 567         .hw_stats_reg_ofs       = 0x900,
 568         .bd_ram_ofs             = 0x2000,
 569         .mac_control            = (1 << 5),
 570         .control                = cpsw_control,
 571         .host_port_num          = 0,
 572         .version                = CPSW_CTRL_VERSION_2,
 573 };
 574 #endif
 575
 576 /*
 577  * This function will:
 578  * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr
 579  * in the environment
 580  * Perform fixups to the PHY present on certain boards.  We only need this
 581  * function in:
 582  * - SPL with either CPSW or USB ethernet support
 583  * - Full U-Boot, with either CPSW or USB ethernet
 584  * Build in only these cases to avoid warnings about unused variables
 585  * when we build an SPL that has neither option but full U-Boot will.
 586  */
 587 #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \
 588                 && defined(CONFIG_SPL_BUILD)) || \
 589         ((defined(CONFIG_DRIVER_TI_CPSW) || \
 590           defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \
 591          !defined(CONFIG_SPL_BUILD))
 592 int board_eth_init(bd_t *bis)
 593 {
 594         int rv, n = 0;
 595         uint8_t mac_addr[6];
 596         uint32_t mac_hi, mac_lo;
 597         __maybe_unused struct am335x_baseboard_id header;
 598
 599         /* try reading mac address from efuse */
 600         mac_lo = readl(&cdev->macid0l);
 601         mac_hi = readl(&cdev->macid0h);
 602         mac_addr[0] = mac_hi & 0xFF;
 603         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 604         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 605         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 606         mac_addr[4] = mac_lo & 0xFF;
 607         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 608
 609 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 610         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 611         if (!getenv("ethaddr")) {
 612                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 613
 614                 if (is_valid_ether_addr(mac_addr))
 615                         eth_setenv_enetaddr("ethaddr", mac_addr);
 616         }
 617
 618 #ifdef CONFIG_DRIVER_TI_CPSW
 619
 620         mac_lo = readl(&cdev->macid1l);
 621         mac_hi = readl(&cdev->macid1h);
 622         mac_addr[0] = mac_hi & 0xFF;
 623         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 624         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 625         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 626         mac_addr[4] = mac_lo & 0xFF;
 627         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 628
 629         if (!getenv("eth1addr")) {
 630                 if (is_valid_ether_addr(mac_addr))
 631                         eth_setenv_enetaddr("eth1addr", mac_addr);
 632         }
 633
 634         if (read_eeprom(&header) < 0)
 635                 puts("Could not get board ID.\n");
 636
 637         if (board_is_bone(&header) || board_is_bone_lt(&header) ||
 638             board_is_idk(&header)) {
 639                 writel(MII_MODE_ENABLE, &cdev->miisel);
 640                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 641                                 PHY_INTERFACE_MODE_MII;
 642         } else {
 643                 writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
 644                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 645                                 PHY_INTERFACE_MODE_RGMII;
 646         }
 647
 648         rv = cpsw_register(&cpsw_data);
 649         if (rv < 0)
 650                 printf("Error %d registering CPSW switch\n", rv);
 651         else
 652                 n += rv;
 653 #endif
 654
 655         /*
 656          *
 657          * CPSW RGMII Internal Delay Mode is not supported in all PVT
 658          * operating points.  So we must set the TX clock delay feature
 659          * in the AR8051 PHY.  Since we only support a single ethernet
 660          * device in U-Boot, we only do this for the first instance.
 661          */
 662 #define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 663 #define AR8051_PHY_DEBUG_DATA_REG       0x1e
 664 #define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 665 #define AR8051_RGMII_TX_CLK_DLY         0x100
 666
 667         if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) {
 668                 const char *devname;
 669                 devname = miiphy_get_current_dev();
 670
 671                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG,
 672                                 AR8051_DEBUG_RGMII_CLK_DLY_REG);
 673                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG,
 674                                 AR8051_RGMII_TX_CLK_DLY);
 675         }
 676 #endif
 677 #if defined(CONFIG_USB_ETHER) && \
 678         (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
 679         if (is_valid_ether_addr(mac_addr))
 680                 eth_setenv_enetaddr("usbnet_devaddr", mac_addr);
 681
 682         rv = usb_eth_initialize(bis);
 683         if (rv < 0)
 684                 printf("Error %d registering USB_ETHER\n", rv);
 685         else
 686                 n += rv;
 687 #endif
 688         return n;
 689 }
 690 #endif