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 #if CONFIG_CONS_INDEX == 1 387 enable_uart0_pin_mux(); 388 #elif CONFIG_CONS_INDEX == 2 389 enable_uart1_pin_mux(); 390 #elif CONFIG_CONS_INDEX == 3 391 enable_uart2_pin_mux(); 392 #elif CONFIG_CONS_INDEX == 4 393 enable_uart3_pin_mux(); 394 #elif CONFIG_CONS_INDEX == 5 395 enable_uart4_pin_mux(); 396 #elif CONFIG_CONS_INDEX == 6 397 enable_uart5_pin_mux(); 398 #endif 399 } 400 401 void set_mux_conf_regs(void) 402 { 403 __maybe_unused struct am335x_baseboard_id header; 404 405 if (read_eeprom(&header) < 0) 406 puts("Could not get board ID.\n"); 407 408 enable_board_pin_mux(&header); 409 } 410 411 const struct ctrl_ioregs ioregs_evmsk = { 412 .cm0ioctl = MT41J128MJT125_IOCTRL_VALUE, 413 .cm1ioctl = MT41J128MJT125_IOCTRL_VALUE, 414 .cm2ioctl = MT41J128MJT125_IOCTRL_VALUE, 415 .dt0ioctl = MT41J128MJT125_IOCTRL_VALUE, 416 .dt1ioctl = MT41J128MJT125_IOCTRL_VALUE, 417 }; 418 419 const struct ctrl_ioregs ioregs_bonelt = { 420 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 421 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 422 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 423 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 424 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 425 }; 426 427 const struct ctrl_ioregs ioregs_evm15 = { 428 .cm0ioctl = MT41J512M8RH125_IOCTRL_VALUE, 429 .cm1ioctl = MT41J512M8RH125_IOCTRL_VALUE, 430 .cm2ioctl = MT41J512M8RH125_IOCTRL_VALUE, 431 .dt0ioctl = MT41J512M8RH125_IOCTRL_VALUE, 432 .dt1ioctl = MT41J512M8RH125_IOCTRL_VALUE, 433 }; 434 435 const struct ctrl_ioregs ioregs = { 436 .cm0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, 437 .cm1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, 438 .cm2ioctl = MT47H128M16RT25E_IOCTRL_VALUE, 439 .dt0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, 440 .dt1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, 441 }; 442 443 void sdram_init(void) 444 { 445 __maybe_unused struct am335x_baseboard_id header; 446 447 if (read_eeprom(&header) < 0) 448 puts("Could not get board ID.\n"); 449 450 if (board_is_evm_sk(&header)) { 451 /* 452 * EVM SK 1.2A and later use gpio0_7 to enable DDR3. 453 * This is safe enough to do on older revs. 454 */ 455 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); 456 gpio_direction_output(GPIO_DDR_VTT_EN, 1); 457 } 458 459 if (board_is_evm_sk(&header)) 460 config_ddr(303, &ioregs_evmsk, &ddr3_data, 461 &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); 462 else if (board_is_bone_lt(&header)) 463 config_ddr(400, &ioregs_bonelt, 464 &ddr3_beagleblack_data, 465 &ddr3_beagleblack_cmd_ctrl_data, 466 &ddr3_beagleblack_emif_reg_data, 0); 467 else if (board_is_evm_15_or_later(&header)) 468 config_ddr(303, &ioregs_evm15, &ddr3_evm_data, 469 &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0); 470 else 471 config_ddr(266, &ioregs, &ddr2_data, 472 &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); 473 } 474 #endif 475 476 /* 477 * Basic board specific setup. Pinmux has been handled already. 478 */ 479 int board_init(void) 480 { 481 #if defined(CONFIG_HW_WATCHDOG) 482 hw_watchdog_init(); 483 #endif 484 485 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 486 #if defined(CONFIG_NOR) || defined(CONFIG_NAND) 487 gpmc_init(); 488 #endif 489 return 0; 490 } 491 492 #ifdef CONFIG_BOARD_LATE_INIT 493 int board_late_init(void) 494 { 495 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 496 char safe_string[HDR_NAME_LEN + 1]; 497 struct am335x_baseboard_id header; 498 499 if (read_eeprom(&header) < 0) 500 puts("Could not get board ID.\n"); 501 502 /* Now set variables based on the header. */ 503 strncpy(safe_string, (char *)header.name, sizeof(header.name)); 504 safe_string[sizeof(header.name)] = 0; 505 setenv("board_name", safe_string); 506 507 strncpy(safe_string, (char *)header.version, sizeof(header.version)); 508 safe_string[sizeof(header.version)] = 0; 509 setenv("board_rev", safe_string); 510 #endif 511 512 return 0; 513 } 514 #endif 515 516 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ 517 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) 518 static void cpsw_control(int enabled) 519 { 520 /* VTP can be added here */ 521 522 return; 523 } 524 525 static struct cpsw_slave_data cpsw_slaves[] = { 526 { 527 .slave_reg_ofs = 0x208, 528 .sliver_reg_ofs = 0xd80, 529 .phy_addr = 0, 530 }, 531 { 532 .slave_reg_ofs = 0x308, 533 .sliver_reg_ofs = 0xdc0, 534 .phy_addr = 1, 535 }, 536 }; 537 538 static struct cpsw_platform_data cpsw_data = { 539 .mdio_base = CPSW_MDIO_BASE, 540 .cpsw_base = CPSW_BASE, 541 .mdio_div = 0xff, 542 .channels = 8, 543 .cpdma_reg_ofs = 0x800, 544 .slaves = 1, 545 .slave_data = cpsw_slaves, 546 .ale_reg_ofs = 0xd00, 547 .ale_entries = 1024, 548 .host_port_reg_ofs = 0x108, 549 .hw_stats_reg_ofs = 0x900, 550 .bd_ram_ofs = 0x2000, 551 .mac_control = (1 << 5), 552 .control = cpsw_control, 553 .host_port_num = 0, 554 .version = CPSW_CTRL_VERSION_2, 555 }; 556 #endif 557 558 /* 559 * This function will: 560 * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr 561 * in the environment 562 * Perform fixups to the PHY present on certain boards. We only need this 563 * function in: 564 * - SPL with either CPSW or USB ethernet support 565 * - Full U-Boot, with either CPSW or USB ethernet 566 * Build in only these cases to avoid warnings about unused variables 567 * when we build an SPL that has neither option but full U-Boot will. 568 */ 569 #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \ 570 && defined(CONFIG_SPL_BUILD)) || \ 571 ((defined(CONFIG_DRIVER_TI_CPSW) || \ 572 defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \ 573 !defined(CONFIG_SPL_BUILD)) 574 int board_eth_init(bd_t *bis) 575 { 576 int rv, n = 0; 577 uint8_t mac_addr[6]; 578 uint32_t mac_hi, mac_lo; 579 __maybe_unused struct am335x_baseboard_id header; 580 581 /* try reading mac address from efuse */ 582 mac_lo = readl(&cdev->macid0l); 583 mac_hi = readl(&cdev->macid0h); 584 mac_addr[0] = mac_hi & 0xFF; 585 mac_addr[1] = (mac_hi & 0xFF00) >> 8; 586 mac_addr[2] = (mac_hi & 0xFF0000) >> 16; 587 mac_addr[3] = (mac_hi & 0xFF000000) >> 24; 588 mac_addr[4] = mac_lo & 0xFF; 589 mac_addr[5] = (mac_lo & 0xFF00) >> 8; 590 591 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ 592 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) 593 if (!getenv("ethaddr")) { 594 printf("<ethaddr> not set. Validating first E-fuse MAC\n"); 595 596 if (is_valid_ether_addr(mac_addr)) 597 eth_setenv_enetaddr("ethaddr", mac_addr); 598 } 599 600 #ifdef CONFIG_DRIVER_TI_CPSW 601 602 mac_lo = readl(&cdev->macid1l); 603 mac_hi = readl(&cdev->macid1h); 604 mac_addr[0] = mac_hi & 0xFF; 605 mac_addr[1] = (mac_hi & 0xFF00) >> 8; 606 mac_addr[2] = (mac_hi & 0xFF0000) >> 16; 607 mac_addr[3] = (mac_hi & 0xFF000000) >> 24; 608 mac_addr[4] = mac_lo & 0xFF; 609 mac_addr[5] = (mac_lo & 0xFF00) >> 8; 610 611 if (!getenv("eth1addr")) { 612 if (is_valid_ether_addr(mac_addr)) 613 eth_setenv_enetaddr("eth1addr", mac_addr); 614 } 615 616 if (read_eeprom(&header) < 0) 617 puts("Could not get board ID.\n"); 618 619 if (board_is_bone(&header) || board_is_bone_lt(&header) || 620 board_is_idk(&header)) { 621 writel(MII_MODE_ENABLE, &cdev->miisel); 622 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = 623 PHY_INTERFACE_MODE_MII; 624 } else { 625 writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel); 626 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = 627 PHY_INTERFACE_MODE_RGMII; 628 } 629 630 rv = cpsw_register(&cpsw_data); 631 if (rv < 0) 632 printf("Error %d registering CPSW switch\n", rv); 633 else 634 n += rv; 635 #endif 636 637 /* 638 * 639 * CPSW RGMII Internal Delay Mode is not supported in all PVT 640 * operating points. So we must set the TX clock delay feature 641 * in the AR8051 PHY. Since we only support a single ethernet 642 * device in U-Boot, we only do this for the first instance. 643 */ 644 #define AR8051_PHY_DEBUG_ADDR_REG 0x1d 645 #define AR8051_PHY_DEBUG_DATA_REG 0x1e 646 #define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5 647 #define AR8051_RGMII_TX_CLK_DLY 0x100 648 649 if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) { 650 const char *devname; 651 devname = miiphy_get_current_dev(); 652 653 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG, 654 AR8051_DEBUG_RGMII_CLK_DLY_REG); 655 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG, 656 AR8051_RGMII_TX_CLK_DLY); 657 } 658 #endif 659 #if defined(CONFIG_USB_ETHER) && \ 660 (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT)) 661 if (is_valid_ether_addr(mac_addr)) 662 eth_setenv_enetaddr("usbnet_devaddr", mac_addr); 663 664 rv = usb_eth_initialize(bis); 665 if (rv < 0) 666 printf("Error %d registering USB_ETHER\n", rv); 667 else 668 n += rv; 669 #endif 670 return n; 671 } 672 #endif 673