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 <serial.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/clk_synthesizer.h>
  21 #include <asm/arch/gpio.h>
  22 #include <asm/arch/mmc_host_def.h>
  23 #include <asm/arch/sys_proto.h>
  24 #include <asm/arch/mem.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 <environment.h>
  36 #include "../common/board_detect.h"
  37 #include "board.h"
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 /* GPIO that controls power to DDR on EVM-SK */
  42 #define GPIO_TO_PIN(bank, gpio)         (32 * (bank) + (gpio))
  43 #define GPIO_DDR_VTT_EN         GPIO_TO_PIN(0, 7)
  44 #define ICE_GPIO_DDR_VTT_EN     GPIO_TO_PIN(0, 18)
  45 #define GPIO_PR1_MII_CTRL       GPIO_TO_PIN(3, 4)
  46 #define GPIO_MUX_MII_CTRL       GPIO_TO_PIN(3, 10)
  47 #define GPIO_FET_SWITCH_CTRL    GPIO_TO_PIN(0, 7)
  48 #define GPIO_PHY_RESET          GPIO_TO_PIN(2, 5)
  49
  50 #if defined(CONFIG_SPL_BUILD) || \
  51         (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_DM_ETH))
  52 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  53 #endif
  54
  55 /*
  56  * Read header information from EEPROM into global structure.
  57  */
  58 static inline int __maybe_unused read_eeprom(void)
  59 {
  60         return ti_i2c_eeprom_am_get(-1, CONFIG_SYS_I2C_EEPROM_ADDR);
  61 }
  62
  63 #ifndef CONFIG_DM_SERIAL
  64 struct serial_device *default_serial_console(void)
  65 {
  66         if (board_is_icev2())
  67                 return &eserial4_device;
  68         else
  69                 return &eserial1_device;
  70 }
  71 #endif
  72
  73 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
  74 static const struct ddr_data ddr2_data = {
  75         .datardsratio0 = MT47H128M16RT25E_RD_DQS,
  76         .datafwsratio0 = MT47H128M16RT25E_PHY_FIFO_WE,
  77         .datawrsratio0 = MT47H128M16RT25E_PHY_WR_DATA,
  78 };
  79
  80 static const struct cmd_control ddr2_cmd_ctrl_data = {
  81         .cmd0csratio = MT47H128M16RT25E_RATIO,
  82
  83         .cmd1csratio = MT47H128M16RT25E_RATIO,
  84
  85         .cmd2csratio = MT47H128M16RT25E_RATIO,
  86 };
  87
  88 static const struct emif_regs ddr2_emif_reg_data = {
  89         .sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
  90         .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
  91         .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
  92         .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
  93         .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
  94         .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
  95 };
  96
  97 static const struct ddr_data ddr3_data = {
  98         .datardsratio0 = MT41J128MJT125_RD_DQS,
  99         .datawdsratio0 = MT41J128MJT125_WR_DQS,
 100         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
 101         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
 102 };
 103
 104 static const struct ddr_data ddr3_beagleblack_data = {
 105         .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 106         .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 107         .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 108         .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 109 };
 110
 111 static const struct ddr_data ddr3_evm_data = {
 112         .datardsratio0 = MT41J512M8RH125_RD_DQS,
 113         .datawdsratio0 = MT41J512M8RH125_WR_DQS,
 114         .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
 115         .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
 116 };
 117
 118 static const struct ddr_data ddr3_icev2_data = {
 119         .datardsratio0 = MT41J128MJT125_RD_DQS_400MHz,
 120         .datawdsratio0 = MT41J128MJT125_WR_DQS_400MHz,
 121         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE_400MHz,
 122         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA_400MHz,
 123 };
 124
 125 static const struct cmd_control ddr3_cmd_ctrl_data = {
 126         .cmd0csratio = MT41J128MJT125_RATIO,
 127         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
 128
 129         .cmd1csratio = MT41J128MJT125_RATIO,
 130         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
 131
 132         .cmd2csratio = MT41J128MJT125_RATIO,
 133         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
 134 };
 135
 136 static const struct cmd_control ddr3_beagleblack_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 const struct cmd_control ddr3_evm_cmd_ctrl_data = {
 148         .cmd0csratio = MT41J512M8RH125_RATIO,
 149         .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 150
 151         .cmd1csratio = MT41J512M8RH125_RATIO,
 152         .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 153
 154         .cmd2csratio = MT41J512M8RH125_RATIO,
 155         .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 156 };
 157
 158 static const struct cmd_control ddr3_icev2_cmd_ctrl_data = {
 159         .cmd0csratio = MT41J128MJT125_RATIO_400MHz,
 160         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz,
 161
 162         .cmd1csratio = MT41J128MJT125_RATIO_400MHz,
 163         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz,
 164
 165         .cmd2csratio = MT41J128MJT125_RATIO_400MHz,
 166         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT_400MHz,
 167 };
 168
 169 static struct emif_regs ddr3_emif_reg_data = {
 170         .sdram_config = MT41J128MJT125_EMIF_SDCFG,
 171         .ref_ctrl = MT41J128MJT125_EMIF_SDREF,
 172         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
 173         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 174         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 175         .zq_config = MT41J128MJT125_ZQ_CFG,
 176         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
 177                                 PHY_EN_DYN_PWRDN,
 178 };
 179
 180 static struct emif_regs ddr3_beagleblack_emif_reg_data = {
 181         .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 182         .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 183         .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 184         .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 185         .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 186         .zq_config = MT41K256M16HA125E_ZQ_CFG,
 187         .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 188 };
 189
 190 static struct emif_regs ddr3_evm_emif_reg_data = {
 191         .sdram_config = MT41J512M8RH125_EMIF_SDCFG,
 192         .ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
 193         .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
 194         .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 195         .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 196         .zq_config = MT41J512M8RH125_ZQ_CFG,
 197         .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
 198                                 PHY_EN_DYN_PWRDN,
 199 };
 200
 201 static struct emif_regs ddr3_icev2_emif_reg_data = {
 202         .sdram_config = MT41J128MJT125_EMIF_SDCFG_400MHz,
 203         .ref_ctrl = MT41J128MJT125_EMIF_SDREF_400MHz,
 204         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1_400MHz,
 205         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2_400MHz,
 206         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3_400MHz,
 207         .zq_config = MT41J128MJT125_ZQ_CFG_400MHz,
 208         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY_400MHz |
 209                                 PHY_EN_DYN_PWRDN,
 210 };
 211
 212 #ifdef CONFIG_SPL_OS_BOOT
 213 int spl_start_uboot(void)
 214 {
 215         /* break into full u-boot on 'c' */
 216         if (serial_tstc() && serial_getc() == 'c')
 217                 return 1;
 218
 219 #ifdef CONFIG_SPL_ENV_SUPPORT
 220         env_init();
 221         env_relocate_spec();
 222         if (getenv_yesno("boot_os") != 1)
 223                 return 1;
 224 #endif
 225
 226         return 0;
 227 }
 228 #endif
 229
 230 #define OSC     (V_OSCK/1000000)
 231 const struct dpll_params dpll_ddr = {
 232                 266, OSC-1, 1, -1, -1, -1, -1};
 233 const struct dpll_params dpll_ddr_evm_sk = {
 234                 303, OSC-1, 1, -1, -1, -1, -1};
 235 const struct dpll_params dpll_ddr_bone_black = {
 236                 400, OSC-1, 1, -1, -1, -1, -1};
 237
 238 void am33xx_spl_board_init(void)
 239 {
 240         int mpu_vdd;
 241
 242         if (read_eeprom() < 0)
 243                 puts("Could not get board ID.\n");
 244
 245         /* Get the frequency */
 246         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 247
 248         if (board_is_bone() || board_is_bone_lt()) {
 249                 /* BeagleBone PMIC Code */
 250                 int usb_cur_lim;
 251
 252                 /*
 253                  * Only perform PMIC configurations if board rev > A1
 254                  * on Beaglebone White
 255                  */
 256                 if (board_is_bone() && !strncmp(board_ti_get_rev(), "00A1", 4))
 257                         return;
 258
 259                 if (i2c_probe(TPS65217_CHIP_PM))
 260                         return;
 261
 262                 /*
 263                  * On Beaglebone White we need to ensure we have AC power
 264                  * before increasing the frequency.
 265                  */
 266                 if (board_is_bone()) {
 267                         uchar pmic_status_reg;
 268                         if (tps65217_reg_read(TPS65217_STATUS,
 269                                               &pmic_status_reg))
 270                                 return;
 271                         if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) {
 272                                 puts("No AC power, disabling frequency switch\n");
 273                                 return;
 274                         }
 275                 }
 276
 277                 /*
 278                  * Override what we have detected since we know if we have
 279                  * a Beaglebone Black it supports 1GHz.
 280                  */
 281                 if (board_is_bone_lt())
 282                         dpll_mpu_opp100.m = MPUPLL_M_1000;
 283
 284                 /*
 285                  * Increase USB current limit to 1300mA or 1800mA and set
 286                  * the MPU voltage controller as needed.
 287                  */
 288                 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 289                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 290                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 291                 } else {
 292                         usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 293                         mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 294                 }
 295
 296                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 297                                        TPS65217_POWER_PATH,
 298                                        usb_cur_lim,
 299                                        TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 300                         puts("tps65217_reg_write failure\n");
 301
 302                 /* Set DCDC3 (CORE) voltage to 1.125V */
 303                 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 304                                             TPS65217_DCDC_VOLT_SEL_1125MV)) {
 305                         puts("tps65217_voltage_update failure\n");
 306                         return;
 307                 }
 308
 309                 /* Set CORE Frequencies to OPP100 */
 310                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 311
 312                 /* Set DCDC2 (MPU) voltage */
 313                 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 314                         puts("tps65217_voltage_update failure\n");
 315                         return;
 316                 }
 317
 318                 /*
 319                  * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone.
 320                  * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black.
 321                  */
 322                 if (board_is_bone()) {
 323                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 324                                                TPS65217_DEFLS1,
 325                                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 326                                                TPS65217_LDO_MASK))
 327                                 puts("tps65217_reg_write failure\n");
 328                 } else {
 329                         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 330                                                TPS65217_DEFLS1,
 331                                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 332                                                TPS65217_LDO_MASK))
 333                                 puts("tps65217_reg_write failure\n");
 334                 }
 335
 336                 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 337                                        TPS65217_DEFLS2,
 338                                        TPS65217_LDO_VOLTAGE_OUT_3_3,
 339                                        TPS65217_LDO_MASK))
 340                         puts("tps65217_reg_write failure\n");
 341         } else {
 342                 int sil_rev;
 343
 344                 /*
 345                  * The GP EVM, IDK and EVM SK use a TPS65910 PMIC.  For all
 346                  * MPU frequencies we support we use a CORE voltage of
 347                  * 1.1375V.  For MPU voltage we need to switch based on
 348                  * the frequency we are running at.
 349                  */
 350                 if (i2c_probe(TPS65910_CTRL_I2C_ADDR))
 351                         return;
 352
 353                 /*
 354                  * Depending on MPU clock and PG we will need a different
 355                  * VDD to drive at that speed.
 356                  */
 357                 sil_rev = readl(&cdev->deviceid) >> 28;
 358                 mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
 359                                                       dpll_mpu_opp100.m);
 360
 361                 /* Tell the TPS65910 to use i2c */
 362                 tps65910_set_i2c_control();
 363
 364                 /* First update MPU voltage. */
 365                 if (tps65910_voltage_update(MPU, mpu_vdd))
 366                         return;
 367
 368                 /* Second, update the CORE voltage. */
 369                 if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
 370                         return;
 371
 372                 /* Set CORE Frequencies to OPP100 */
 373                 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 374         }
 375
 376         /* Set MPU Frequency to what we detected now that voltages are set */
 377         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 378 }
 379
 380 const struct dpll_params *get_dpll_ddr_params(void)
 381 {
 382         enable_i2c0_pin_mux();
 383         i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 384         if (read_eeprom() < 0)
 385                 puts("Could not get board ID.\n");
 386
 387         if (board_is_evm_sk())
 388                 return &dpll_ddr_evm_sk;
 389         else if (board_is_bone_lt() || board_is_icev2())
 390                 return &dpll_ddr_bone_black;
 391         else if (board_is_evm_15_or_later())
 392                 return &dpll_ddr_evm_sk;
 393         else
 394                 return &dpll_ddr;
 395 }
 396
 397 void set_uart_mux_conf(void)
 398 {
 399 #if CONFIG_CONS_INDEX == 1
 400         enable_uart0_pin_mux();
 401 #elif CONFIG_CONS_INDEX == 2
 402         enable_uart1_pin_mux();
 403 #elif CONFIG_CONS_INDEX == 3
 404         enable_uart2_pin_mux();
 405 #elif CONFIG_CONS_INDEX == 4
 406         enable_uart3_pin_mux();
 407 #elif CONFIG_CONS_INDEX == 5
 408         enable_uart4_pin_mux();
 409 #elif CONFIG_CONS_INDEX == 6
 410         enable_uart5_pin_mux();
 411 #endif
 412 }
 413
 414 void set_mux_conf_regs(void)
 415 {
 416         if (read_eeprom() < 0)
 417                 puts("Could not get board ID.\n");
 418
 419         enable_board_pin_mux();
 420 }
 421
 422 const struct ctrl_ioregs ioregs_evmsk = {
 423         .cm0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 424         .cm1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 425         .cm2ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 426         .dt0ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 427         .dt1ioctl               = MT41J128MJT125_IOCTRL_VALUE,
 428 };
 429
 430 const struct ctrl_ioregs ioregs_bonelt = {
 431         .cm0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 432         .cm1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 433         .cm2ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 434         .dt0ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 435         .dt1ioctl               = MT41K256M16HA125E_IOCTRL_VALUE,
 436 };
 437
 438 const struct ctrl_ioregs ioregs_evm15 = {
 439         .cm0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 440         .cm1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 441         .cm2ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 442         .dt0ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 443         .dt1ioctl               = MT41J512M8RH125_IOCTRL_VALUE,
 444 };
 445
 446 const struct ctrl_ioregs ioregs = {
 447         .cm0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 448         .cm1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 449         .cm2ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 450         .dt0ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 451         .dt1ioctl               = MT47H128M16RT25E_IOCTRL_VALUE,
 452 };
 453
 454 void sdram_init(void)
 455 {
 456         if (read_eeprom() < 0)
 457                 puts("Could not get board ID.\n");
 458
 459         if (board_is_evm_sk()) {
 460                 /*
 461                  * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 462                  * This is safe enough to do on older revs.
 463                  */
 464                 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 465                 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 466         }
 467
 468         if (board_is_icev2()) {
 469                 gpio_request(ICE_GPIO_DDR_VTT_EN, "ddr_vtt_en");
 470                 gpio_direction_output(ICE_GPIO_DDR_VTT_EN, 1);
 471         }
 472
 473         if (board_is_evm_sk())
 474                 config_ddr(303, &ioregs_evmsk, &ddr3_data,
 475                            &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 476         else if (board_is_bone_lt())
 477                 config_ddr(400, &ioregs_bonelt,
 478                            &ddr3_beagleblack_data,
 479                            &ddr3_beagleblack_cmd_ctrl_data,
 480                            &ddr3_beagleblack_emif_reg_data, 0);
 481         else if (board_is_evm_15_or_later())
 482                 config_ddr(303, &ioregs_evm15, &ddr3_evm_data,
 483                            &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 484         else if (board_is_icev2())
 485                 config_ddr(400, &ioregs_evmsk, &ddr3_icev2_data,
 486                            &ddr3_icev2_cmd_ctrl_data, &ddr3_icev2_emif_reg_data,
 487                            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 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 495         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 496 static void request_and_set_gpio(int gpio, char *name)
 497 {
 498         int ret;
 499
 500         ret = gpio_request(gpio, name);
 501         if (ret < 0) {
 502                 printf("%s: Unable to request %s\n", __func__, name);
 503                 return;
 504         }
 505
 506         ret = gpio_direction_output(gpio, 0);
 507         if (ret < 0) {
 508                 printf("%s: Unable to set %s  as output\n", __func__, name);
 509                 goto err_free_gpio;
 510         }
 511
 512         gpio_set_value(gpio, 1);
 513
 514         return;
 515
 516 err_free_gpio:
 517         gpio_free(gpio);
 518 }
 519
 520 #define REQUEST_AND_SET_GPIO(N) request_and_set_gpio(N, #N);
 521
 522 /**
 523  * RMII mode on ICEv2 board needs 50MHz clock. Given the clock
 524  * synthesizer With a capacitor of 18pF, and 25MHz input clock cycle
 525  * PLL1 gives an output of 100MHz. So, configuring the div2/3 as 2 to
 526  * give 50MHz output for Eth0 and 1.
 527  */
 528 static struct clk_synth cdce913_data = {
 529         .id = 0x81,
 530         .capacitor = 0x90,
 531         .mux = 0x6d,
 532         .pdiv2 = 0x2,
 533         .pdiv3 = 0x2,
 534 };
 535 #endif
 536
 537 /*
 538  * Basic board specific setup.  Pinmux has been handled already.
 539  */
 540 int board_init(void)
 541 {
 542 #if defined(CONFIG_HW_WATCHDOG)
 543         hw_watchdog_init();
 544 #endif
 545
 546         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 547 #if defined(CONFIG_NOR) || defined(CONFIG_NAND)
 548         gpmc_init();
 549 #endif
 550 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD))
 551         int rv;
 552
 553         if (board_is_icev2()) {
 554                 REQUEST_AND_SET_GPIO(GPIO_PR1_MII_CTRL);
 555                 REQUEST_AND_SET_GPIO(GPIO_MUX_MII_CTRL);
 556                 REQUEST_AND_SET_GPIO(GPIO_FET_SWITCH_CTRL);
 557                 REQUEST_AND_SET_GPIO(GPIO_PHY_RESET);
 558
 559                 rv = setup_clock_synthesizer(&cdce913_data);
 560                 if (rv) {
 561                         printf("Clock synthesizer setup failed %d\n", rv);
 562                         return rv;
 563                 }
 564         }
 565 #endif
 566
 567         return 0;
 568 }
 569
 570 #ifdef CONFIG_BOARD_LATE_INIT
 571 int board_late_init(void)
 572 {
 573 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 574         int rc;
 575         char *name = NULL;
 576
 577         rc = read_eeprom();
 578         if (rc)
 579                 puts("Could not get board ID.\n");
 580
 581         if (board_is_bbg1())
 582                 name = "BBG1";
 583         set_board_info_env(name);
 584 #endif
 585
 586         return 0;
 587 }
 588 #endif
 589
 590 #ifndef CONFIG_DM_ETH
 591
 592 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 593         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 594 static void cpsw_control(int enabled)
 595 {
 596         /* VTP can be added here */
 597
 598         return;
 599 }
 600
 601 static struct cpsw_slave_data cpsw_slaves[] = {
 602         {
 603                 .slave_reg_ofs  = 0x208,
 604                 .sliver_reg_ofs = 0xd80,
 605                 .phy_addr       = 0,
 606         },
 607         {
 608                 .slave_reg_ofs  = 0x308,
 609                 .sliver_reg_ofs = 0xdc0,
 610                 .phy_addr       = 1,
 611         },
 612 };
 613
 614 static struct cpsw_platform_data cpsw_data = {
 615         .mdio_base              = CPSW_MDIO_BASE,
 616         .cpsw_base              = CPSW_BASE,
 617         .mdio_div               = 0xff,
 618         .channels               = 8,
 619         .cpdma_reg_ofs          = 0x800,
 620         .slaves                 = 1,
 621         .slave_data             = cpsw_slaves,
 622         .ale_reg_ofs            = 0xd00,
 623         .ale_entries            = 1024,
 624         .host_port_reg_ofs      = 0x108,
 625         .hw_stats_reg_ofs       = 0x900,
 626         .bd_ram_ofs             = 0x2000,
 627         .mac_control            = (1 << 5),
 628         .control                = cpsw_control,
 629         .host_port_num          = 0,
 630         .version                = CPSW_CTRL_VERSION_2,
 631 };
 632 #endif
 633
 634 #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) &&\
 635         defined(CONFIG_SPL_BUILD)) || \
 636         ((defined(CONFIG_DRIVER_TI_CPSW) || \
 637           defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \
 638          !defined(CONFIG_SPL_BUILD))
 639
 640 /*
 641  * This function will:
 642  * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr
 643  * in the environment
 644  * Perform fixups to the PHY present on certain boards.  We only need this
 645  * function in:
 646  * - SPL with either CPSW or USB ethernet support
 647  * - Full U-Boot, with either CPSW or USB ethernet
 648  * Build in only these cases to avoid warnings about unused variables
 649  * when we build an SPL that has neither option but full U-Boot will.
 650  */
 651 int board_eth_init(bd_t *bis)
 652 {
 653         int rv, n = 0;
 654         uint8_t mac_addr[6];
 655         uint32_t mac_hi, mac_lo;
 656         __maybe_unused struct ti_am_eeprom *header;
 657
 658         /* try reading mac address from efuse */
 659         mac_lo = readl(&cdev->macid0l);
 660         mac_hi = readl(&cdev->macid0h);
 661         mac_addr[0] = mac_hi & 0xFF;
 662         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 663         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 664         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 665         mac_addr[4] = mac_lo & 0xFF;
 666         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 667
 668 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 669         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 670         if (!getenv("ethaddr")) {
 671                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 672
 673                 if (is_valid_ethaddr(mac_addr))
 674                         eth_setenv_enetaddr("ethaddr", mac_addr);
 675         }
 676
 677 #ifdef CONFIG_DRIVER_TI_CPSW
 678
 679         mac_lo = readl(&cdev->macid1l);
 680         mac_hi = readl(&cdev->macid1h);
 681         mac_addr[0] = mac_hi & 0xFF;
 682         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 683         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 684         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 685         mac_addr[4] = mac_lo & 0xFF;
 686         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 687
 688         if (!getenv("eth1addr")) {
 689                 if (is_valid_ethaddr(mac_addr))
 690                         eth_setenv_enetaddr("eth1addr", mac_addr);
 691         }
 692
 693         if (read_eeprom() < 0)
 694                 puts("Could not get board ID.\n");
 695
 696         if (board_is_bone() || board_is_bone_lt() ||
 697             board_is_idk()) {
 698                 writel(MII_MODE_ENABLE, &cdev->miisel);
 699                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 700                                 PHY_INTERFACE_MODE_MII;
 701         } else if (board_is_icev2()) {
 702                 writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE, &cdev->miisel);
 703                 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RMII;
 704                 cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RMII;
 705                 cpsw_slaves[0].phy_addr = 1;
 706                 cpsw_slaves[1].phy_addr = 3;
 707         } else {
 708                 writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel);
 709                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 710                                 PHY_INTERFACE_MODE_RGMII;
 711         }
 712
 713         rv = cpsw_register(&cpsw_data);
 714         if (rv < 0)
 715                 printf("Error %d registering CPSW switch\n", rv);
 716         else
 717                 n += rv;
 718 #endif
 719
 720         /*
 721          *
 722          * CPSW RGMII Internal Delay Mode is not supported in all PVT
 723          * operating points.  So we must set the TX clock delay feature
 724          * in the AR8051 PHY.  Since we only support a single ethernet
 725          * device in U-Boot, we only do this for the first instance.
 726          */
 727 #define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 728 #define AR8051_PHY_DEBUG_DATA_REG       0x1e
 729 #define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 730 #define AR8051_RGMII_TX_CLK_DLY         0x100
 731
 732         if (board_is_evm_sk() || board_is_gp_evm()) {
 733                 const char *devname;
 734                 devname = miiphy_get_current_dev();
 735
 736                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG,
 737                                 AR8051_DEBUG_RGMII_CLK_DLY_REG);
 738                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG,
 739                                 AR8051_RGMII_TX_CLK_DLY);
 740         }
 741 #endif
 742 #if defined(CONFIG_USB_ETHER) && \
 743         (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
 744         if (is_valid_ethaddr(mac_addr))
 745                 eth_setenv_enetaddr("usbnet_devaddr", mac_addr);
 746
 747         rv = usb_eth_initialize(bis);
 748         if (rv < 0)
 749                 printf("Error %d registering USB_ETHER\n", rv);
 750         else
 751                 n += rv;
 752 #endif
 753         return n;
 754 }
 755 #endif
 756
 757 #endif /* CONFIG_DM_ETH */
 758
 759 #ifdef CONFIG_SPL_LOAD_FIT
 760 int board_fit_config_name_match(const char *name)
 761 {
 762         if (board_is_gp_evm() && !strcmp(name, "am335x-evm"))
 763                 return 0;
 764         else if (board_is_bone() && !strcmp(name, "am335x-bone"))
 765                 return 0;
 766         else if (board_is_bone_lt() && !strcmp(name, "am335x-boneblack"))
 767                 return 0;
 768         else if (board_is_evm_sk() && !strcmp(name, "am335x-evmsk"))
 769                 return 0;
 770         else if (board_is_bbg1() && !strcmp(name, "am335x-bonegreen"))
 771                 return 0;
 772         else if (board_is_icev2() && !strcmp(name, "am335x-icev2"))
 773                 return 0;
 774         else
 775                 return -1;
 776 }
 777 #endif