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 <environment.h>
  34 #include "board.h"
  35
  36 DECLARE_GLOBAL_DATA_PTR;
  37
  38 /* GPIO that controls power to DDR on EVM-SK */
  39 #define GPIO_DDR_VTT_EN         7
  40
  41 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  42
  43 /*
  44  * Read header information from EEPROM into global structure.
  45  */
  46 static int read_eeprom(struct am335x_baseboard_id *header)
  47 {
  48         /* Check if baseboard eeprom is available */
  49         if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  50                 puts("Could not probe the EEPROM; something fundamentally "
  51                         "wrong on the I2C bus.\n");
  52                 return -ENODEV;
  53         }
  54
  55         /* read the eeprom using i2c */
  56         if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
  57                      sizeof(struct am335x_baseboard_id))) {
  58                 puts("Could not read the EEPROM; something fundamentally"
  59                         " wrong on the I2C bus.\n");
  60                 return -EIO;
  61         }
  62
  63         if (header->magic != 0xEE3355AA) {
  64                 /*
  65                  * read the eeprom using i2c again,
  66                  * but use only a 1 byte address
  67                  */
  68                 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
  69                              sizeof(struct am335x_baseboard_id))) {
  70                         puts("Could not read the EEPROM; something "
  71                                 "fundamentally wrong on the I2C bus.\n");
  72                         return -EIO;
  73                 }
  74
  75                 if (header->magic != 0xEE3355AA) {
  76                         printf("Incorrect magic number (0x%x) in EEPROM\n",
  77                                         header->magic);
  78                         return -EINVAL;
  79                 }
  80         }
  81
  82         return 0;
  83 }
  84
  85 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
  86 static const struct ddr_data ddr2_data = {
  87         .datardsratio0 = MT47H128M16RT25E_RD_DQS,
  88         .datafwsratio0 = MT47H128M16RT25E_PHY_FIFO_WE,
  89         .datawrsratio0 = MT47H128M16RT25E_PHY_WR_DATA,
  90 };
  91
  92 static const struct cmd_control ddr2_cmd_ctrl_data = {
  93         .cmd0csratio = MT47H128M16RT25E_RATIO,
  94
  95         .cmd1csratio = MT47H128M16RT25E_RATIO,
  96
  97         .cmd2csratio = MT47H128M16RT25E_RATIO,
  98 };
  99
 100 static const struct emif_regs ddr2_emif_reg_data = {
 101         .sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
 102         .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
 103         .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
 104         .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
 105         .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
 106         .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
 107 };
 108
 109 static const struct ddr_data ddr3_data = {
 110         .datardsratio0 = MT41J128MJT125_RD_DQS,
 111         .datawdsratio0 = MT41J128MJT125_WR_DQS,
 112         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
 113         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
 114 };
 115
 116 static const struct ddr_data ddr3_beagleblack_data = {
 117         .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 118         .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 119         .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 120         .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 121 };
 122
 123 static const struct ddr_data ddr3_evm_data = {
 124         .datardsratio0 = MT41J512M8RH125_RD_DQS,
 125         .datawdsratio0 = MT41J512M8RH125_WR_DQS,
 126         .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
 127         .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
 128 };
 129
 130 static const struct cmd_control ddr3_cmd_ctrl_data = {
 131         .cmd0csratio = MT41J128MJT125_RATIO,
 132         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
 133
 134         .cmd1csratio = MT41J128MJT125_RATIO,
 135         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
 136
 137         .cmd2csratio = MT41J128MJT125_RATIO,
 138         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
 139 };
 140
 141 static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = {
 142         .cmd0csratio = MT41K256M16HA125E_RATIO,
 143         .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 144
 145         .cmd1csratio = MT41K256M16HA125E_RATIO,
 146         .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 147
 148         .cmd2csratio = MT41K256M16HA125E_RATIO,
 149         .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 150 };
 151
 152 static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
 153         .cmd0csratio = MT41J512M8RH125_RATIO,
 154         .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 155
 156         .cmd1csratio = MT41J512M8RH125_RATIO,
 157         .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 158
 159         .cmd2csratio = MT41J512M8RH125_RATIO,
 160         .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 161 };
 162
 163 static struct emif_regs ddr3_emif_reg_data = {
 164         .sdram_config = MT41J128MJT125_EMIF_SDCFG,
 165         .ref_ctrl = MT41J128MJT125_EMIF_SDREF,
 166         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
 167         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 168         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 169         .zq_config = MT41J128MJT125_ZQ_CFG,
 170         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
 171                                 PHY_EN_DYN_PWRDN,
 172 };
 173
 174 static struct emif_regs ddr3_beagleblack_emif_reg_data = {
 175         .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 176         .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 177         .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 178         .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 179         .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 180         .zq_config = MT41K256M16HA125E_ZQ_CFG,
 181         .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 182 };
 183
 184 static struct emif_regs ddr3_evm_emif_reg_data = {
 185         .sdram_config = MT41J512M8RH125_EMIF_SDCFG,
 186         .ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
 187         .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
 188         .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 189         .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 190         .zq_config = MT41J512M8RH125_ZQ_CFG,
 191         .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
 192                                 PHY_EN_DYN_PWRDN,
 193 };
 194
 195 #ifdef CONFIG_SPL_OS_BOOT
 196 int spl_start_uboot(void)
 197 {
 198         /* break into full u-boot on 'c' */
 199         if (serial_tstc() && serial_getc() == 'c')
 200                 return 1;
 201
 202 #ifdef CONFIG_SPL_ENV_SUPPORT
 203         env_init();
 204         env_relocate_spec();
 205         if (getenv_yesno("boot_os") != 1)
 206                 return 1;
 207 #endif
 208
 209         return 0;
 210 }
 211 #endif
 212
 213 #define OSC     (V_OSCK/1000000)
 214 const struct dpll_params dpll_ddr = {
 215                 266, OSC-1, 1, -1, -1, -1, -1};
 216 const struct dpll_params dpll_ddr_evm_sk = {
 217                 303, OSC-1, 1, -1, -1, -1, -1};
 218 const struct dpll_params dpll_ddr_bone_black = {
 219                 400, OSC-1, 1, -1, -1, -1, -1};
 220
 221 void am33xx_spl_board_init(void)
 222 {
 223         struct am335x_baseboard_id header;
 224         int mpu_vdd;
 225
 226         if (read_eeprom(&header) < 0)
 227                 puts("Could not get board ID.\n");
 228
 229         /* Get the frequency */
 230         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 231
 232         if (board_is_bone(&header) || board_is_bone_lt(&header)) {
 233                 /* BeagleBone PMIC Code */
 234                 int usb_cur_lim;
 235
 236                 /*
 237                  * Only perform PMIC configurations if board rev > A1
 238                  * on Beaglebone White
 239                  */
 240                 if (board_is_bone(&header) && !strncmp(header.version,
 241                                                        "00A1", 4))
 242                         return;
 243
 244                 if (i2c_probe(TPS65217_CHIP_PM))
 245                         return;
 246
 247                 /*
 248                  * On Beaglebone White we need to ensure we have AC power
 249                  * before increasing the frequency.
 250                  */
 251                 if (board_is_bone(&header)) {
 252                         uchar pmic_status_reg;
 253                         if (tps65217_reg_read(TPS65217_STATUS,
 254                                               &pmic_status_reg))
 255                                 return;
 256                         if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) {
 257                                 puts("No AC power, disabling frequency switch\n");
 258                                 return;
 259                         }
 260                 }
 261
 262                 /*
 263                  * Override what we have detected since we know if we have
 264                  * a Beaglebone Black it supports 1GHz.
 265                  */
 266                 if (board_is_bone_lt(&header))
 267                         dpll_mpu_opp100.m = MPUPLL_M_1000;
 268
 269                 /*
 270                  * Increase USB current limit to 1300mA or 1800mA and set
 271                  * the MPU voltage controller as needed.
 272                  */
 273                 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 274                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 275                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 276                 } else {
 277                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 278                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 279                 }
 280
 281                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 282                                        TPS65217_POWER_PATH,
 283                                        usb_cur_lim,
 284                                        TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 285                         puts("tps65217_reg_write failure\n");
 286
 287                 /* Set DCDC3 (CORE) voltage to 1.125V */
 288                 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 289                                             TPS65217_DCDC_VOLT_SEL_1125MV)) {
 290                         puts("tps65217_voltage_update failure\n");
 291                         return;
 292                 }
 293
 294                 /* Set CORE Frequencies to OPP100 */
 295                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 296
 297                 /* Set DCDC2 (MPU) voltage */
 298                 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 299                         puts("tps65217_voltage_update failure\n");
 300                         return;
 301                 }
 302
 303                 /*
 304                  * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
 305                  * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
 306                  */
 307                 if (board_is_bone(&header)) {
 308                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 309                                                TPS65217_DEFLS1,
 310                                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 311                                                TPS65217_LDO_MASK))
 312                                 puts("tps65217_reg_write failure\n");
 313                 } else {
 314                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 315                                                TPS65217_DEFLS1,
 316                                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 317                                                TPS65217_LDO_MASK))
 318                                 puts("tps65217_reg_write failure\n");
 319                 }
 320
 321                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 322                                        TPS65217_DEFLS2,
 323                                        TPS65217_LDO_VOLTAGE_OUT_3_3,
 324                                        TPS65217_LDO_MASK))
 325                         puts("tps65217_reg_write failure\n");
 326         } else {
 327                 int sil_rev;
 328
 329                 /*
 330                  * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 331                  * MPU frequencies we support we use a CORE voltage of
 332                  * 1.1375V.  For MPU voltage we need to switch based on
 333                  * the frequency we are running at.
 334                  */
 335                 if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
 336                         return;
 337
 338                 /*
 339                  * Depending on MPU clock and PG we will need a different
 340                  * VDD to drive at that speed.
 341                  */
 342                 sil_rev = readl(&cdev->deviceid) >> 28;
 343                 mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 344                                                       dpll_mpu_opp100.m);
 345
 346                 /* Tell the TPS65910 to use i2c */
 347                 tps65910_set_i2c_control();
 348
 349                 /* First update MPU voltage. */
 350                 if (tps65910_voltage_update(MPU, mpu_vdd))
 351                         return;
 352
 353                 /* Second, update the CORE voltage. */
 354                 if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 355                         return;
 356
 357                 /* Set CORE Frequencies to OPP100 */
 358                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 359         }
 360
 361         /* Set MPU Frequency to what we detected now that voltages are set */
 362         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 363 }
 364
 365 const struct dpll_params *get_dpll_ddr_params(void)
 366 {
 367         struct am335x_baseboard_id header;
 368
 369         enable_i2c0_pin_mux();
 370         i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 371         if (read_eeprom(&header) < 0)
 372                 puts("Could not get board ID.\n");
 373
 374         if (board_is_evm_sk(&header))
 375                 return &dpll_ddr_evm_sk;
 376         else if (board_is_bone_lt(&header))
 377                 return &dpll_ddr_bone_black;
 378         else if (board_is_evm_15_or_later(&header))
 379                 return &dpll_ddr_evm_sk;
 380         else
 381                 return &dpll_ddr;
 382 }
 383
 384 void set_uart_mux_conf(void)
 385 {
 386 #ifdef CONFIG_SERIAL1
 387         enable_uart0_pin_mux();
 388 #endif /* CONFIG_SERIAL1 */
 389 #ifdef CONFIG_SERIAL2
 390         enable_uart1_pin_mux();
 391 #endif /* CONFIG_SERIAL2 */
 392 #ifdef CONFIG_SERIAL3
 393         enable_uart2_pin_mux();
 394 #endif /* CONFIG_SERIAL3 */
 395 #ifdef CONFIG_SERIAL4
 396         enable_uart3_pin_mux();
 397 #endif /* CONFIG_SERIAL4 */
 398 #ifdef CONFIG_SERIAL5
 399         enable_uart4_pin_mux();
 400 #endif /* CONFIG_SERIAL5 */
 401 #ifdef CONFIG_SERIAL6
 402         enable_uart5_pin_mux();
 403 #endif /* CONFIG_SERIAL6 */
 404 }
 405
 406 void set_mux_conf_regs(void)
 407 {
 408         __maybe_unused struct am335x_baseboard_id header;
 409
 410         if (read_eeprom(&header) < 0)
 411                 puts("Could not get board ID.\n");
 412
 413         enable_board_pin_mux(&header);
 414 }
 415
 416 const struct ctrl_ioregs ioregs_evmsk = {
 417         .cm0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 418         .cm1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 419         .cm2ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 420         .dt0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 421         .dt1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 422 };
 423
 424 const struct ctrl_ioregs ioregs_bonelt = {
 425         .cm0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 426         .cm1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 427         .cm2ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 428         .dt0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 429         .dt1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 430 };
 431
 432 const struct ctrl_ioregs ioregs_evm15 = {
 433         .cm0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 434         .cm1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 435         .cm2ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 436         .dt0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 437         .dt1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 438 };
 439
 440 const struct ctrl_ioregs ioregs = {
 441         .cm0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 442         .cm1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 443         .cm2ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 444         .dt0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 445         .dt1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 446 };
 447
 448 void sdram_init(void)
 449 {
 450         __maybe_unused struct am335x_baseboard_id header;
 451
 452         if (read_eeprom(&header) < 0)
 453                 puts("Could not get board ID.\n");
 454
 455         if (board_is_evm_sk(&header)) {
 456                 /*
 457                  * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 458                  * This is safe enough to do on older revs.
 459                  */
 460                 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 461                 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 462         }
 463
 464         if (board_is_evm_sk(&header))
 465                 config_ddr(303, &ioregs_evmsk, &ddr3_data,
 466                            &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 467         else if (board_is_bone_lt(&header))
 468                 config_ddr(400, &ioregs_bonelt,
 469                            &ddr3_beagleblack_data,
 470                            &ddr3_beagleblack_cmd_ctrl_data,
 471                            &ddr3_beagleblack_emif_reg_data, 0);
 472         else if (board_is_evm_15_or_later(&header))
 473                 config_ddr(303, &ioregs_evm15, &ddr3_evm_data,
 474                            &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 475         else
 476                 config_ddr(266, &ioregs, &ddr2_data,
 477                            &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
 478 }
 479 #endif
 480
 481 /*
 482  * Basic board specific setup.  Pinmux has been handled already.
 483  */
 484 int board_init(void)
 485 {
 486 #if defined(CONFIG_HW_WATCHDOG)
 487         hw_watchdog_init();
 488 #endif
 489
 490         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 491 #if defined(CONFIG_NOR) || defined(CONFIG_NAND)
 492         gpmc_init();
 493 #endif
 494         return 0;
 495 }
 496
 497 #ifdef CONFIG_BOARD_LATE_INIT
 498 int board_late_init(void)
 499 {
 500 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 501         char safe_string[HDR_NAME_LEN + 1];
 502         struct am335x_baseboard_id header;
 503
 504         if (read_eeprom(&header) < 0)
 505                 puts("Could not get board ID.\n");
 506
 507         /* Now set variables based on the header. */
 508         strncpy(safe_string, (char *)header.name, sizeof(header.name));
 509         safe_string[sizeof(header.name)] = 0;
 510         setenv("board_name", safe_string);
 511
 512         strncpy(safe_string, (char *)header.version, sizeof(header.version));
 513         safe_string[sizeof(header.version)] = 0;
 514         setenv("board_rev", safe_string);
 515 #endif
 516
 517         return 0;
 518 }
 519 #endif
 520
 521 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 522         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 523 static void cpsw_control(int enabled)
 524 {
 525         /* VTP can be added here */
 526
 527         return;
 528 }
 529
 530 static struct cpsw_slave_data cpsw_slaves[] = {
 531         {
 532                 .slave_reg_ofs  = 0x208,
 533                 .sliver_reg_ofs = 0xd80,
 534                 .phy_addr       = 0,
 535         },
 536         {
 537                 .slave_reg_ofs  = 0x308,
 538                 .sliver_reg_ofs = 0xdc0,
 539                 .phy_addr       = 1,
 540         },
 541 };
 542
 543 static struct cpsw_platform_data cpsw_data = {
 544         .mdio_base              = CPSW_MDIO_BASE,
 545         .cpsw_base              = CPSW_BASE,
 546         .mdio_div               = 0xff,
 547         .channels               = 8,
 548         .cpdma_reg_ofs          = 0x800,
 549         .slaves                 = 1,
 550         .slave_data             = cpsw_slaves,
 551         .ale_reg_ofs            = 0xd00,
 552         .ale_entries            = 1024,
 553         .host_port_reg_ofs      = 0x108,
 554         .hw_stats_reg_ofs       = 0x900,
 555         .bd_ram_ofs             = 0x2000,
 556         .mac_control            = (1 << 5),
 557         .control                = cpsw_control,
 558         .host_port_num          = 0,
 559         .version                = CPSW_CTRL_VERSION_2,
 560 };
 561 #endif
 562
 563 /*
 564  * This function will:
 565  * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr
 566  * in the environment
 567  * Perform fixups to the PHY present on certain boards.  We only need this
 568  * function in:
 569  * - SPL with either CPSW or USB ethernet support
 570  * - Full U-Boot, with either CPSW or USB ethernet
 571  * Build in only these cases to avoid warnings about unused variables
 572  * when we build an SPL that has neither option but full U-Boot will.
 573  */
 574 #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \
 575                 && defined(CONFIG_SPL_BUILD)) || \
 576         ((defined(CONFIG_DRIVER_TI_CPSW) || \
 577           defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \
 578          !defined(CONFIG_SPL_BUILD))
 579 int board_eth_init(bd_t *bis)
 580 {
 581         int rv, n = 0;
 582         uint8_t mac_addr[6];
 583         uint32_t mac_hi, mac_lo;
 584         __maybe_unused struct am335x_baseboard_id header;
 585
 586         /* try reading mac address from efuse */
 587         mac_lo = readl(&cdev->macid0l);
 588         mac_hi = readl(&cdev->macid0h);
 589         mac_addr[0] = mac_hi & 0xFF;
 590         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 591         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 592         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 593         mac_addr[4] = mac_lo & 0xFF;
 594         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 595
 596 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 597         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 598         if (!getenv("ethaddr")) {
 599                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 600
 601                 if (is_valid_ether_addr(mac_addr))
 602                         eth_setenv_enetaddr("ethaddr", mac_addr);
 603         }
 604
 605 #ifdef CONFIG_DRIVER_TI_CPSW
 606
 607         mac_lo = readl(&cdev->macid1l);
 608         mac_hi = readl(&cdev->macid1h);
 609         mac_addr[0] = mac_hi & 0xFF;
 610         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 611         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 612         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 613         mac_addr[4] = mac_lo & 0xFF;
 614         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 615
 616         if (!getenv("eth1addr")) {
 617                 if (is_valid_ether_addr(mac_addr))
 618                         eth_setenv_enetaddr("eth1addr", mac_addr);
 619         }
 620
 621         if (read_eeprom(&header) < 0)
 622                 puts("Could not get board ID.\n");
 623
 624         if (board_is_bone(&header) || board_is_bone_lt(&header) ||
 625             board_is_idk(&header)) {
 626                 writel(MII_MODE_ENABLE, &cdev->miisel);
 627                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 628                                 PHY_INTERFACE_MODE_MII;
 629         } else {
 630                 writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
 631                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 632                                 PHY_INTERFACE_MODE_RGMII;
 633         }
 634
 635         rv = cpsw_register(&cpsw_data);
 636         if (rv < 0)
 637                 printf("Error %d registering CPSW switch\n", rv);
 638         else
 639                 n += rv;
 640 #endif
 641
 642         /*
 643          *
 644          * CPSW RGMII Internal Delay Mode is not supported in all PVT
 645          * operating points.  So we must set the TX clock delay feature
 646          * in the AR8051 PHY.  Since we only support a single ethernet
 647          * device in U-Boot, we only do this for the first instance.
 648          */
 649 #define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 650 #define AR8051_PHY_DEBUG_DATA_REG       0x1e
 651 #define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 652 #define AR8051_RGMII_TX_CLK_DLY         0x100
 653
 654         if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) {
 655                 const char *devname;
 656                 devname = miiphy_get_current_dev();
 657
 658                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG,
 659                                 AR8051_DEBUG_RGMII_CLK_DLY_REG);
 660                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG,
 661                                 AR8051_RGMII_TX_CLK_DLY);
 662         }
 663 #endif
 664 #if defined(CONFIG_USB_ETHER) && \
 665         (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
 666         if (is_valid_ether_addr(mac_addr))
 667                 eth_setenv_enetaddr("usbnet_devaddr", mac_addr);
 668
 669         rv = usb_eth_initialize(bis);
 670         if (rv < 0)
 671                 printf("Error %d registering USB_ETHER\n", rv);
 672         else
 673                 n += rv;
 674 #endif
 675         return n;
 676 }
 677 #endif