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  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #include <common.h>
  20 #include <errno.h>
  21 #include <spl.h>
  22 #include <asm/arch/cpu.h>
  23 #include <asm/arch/hardware.h>
  24 #include <asm/arch/omap.h>
  25 #include <asm/arch/ddr_defs.h>
  26 #include <asm/arch/clock.h>
  27 #include <asm/arch/gpio.h>
  28 #include <asm/arch/mmc_host_def.h>
  29 #include <asm/arch/sys_proto.h>
  30 #include <asm/io.h>
  31 #include <asm/emif.h>
  32 #include <asm/gpio.h>
  33 #include <i2c.h>
  34 #include <miiphy.h>
  35 #include <cpsw.h>
  36 #include "board.h"
  37
  38 DECLARE_GLOBAL_DATA_PTR;
  39
  40 static struct wd_timer *wdtimer = (struct wd_timer *)WDT_BASE;
  41 #ifdef CONFIG_SPL_BUILD
  42 static struct uart_sys *uart_base = (struct uart_sys *)DEFAULT_UART_BASE;
  43 #endif
  44
  45 /* MII mode defines */
  46 #define MII_MODE_ENABLE         0x0
  47 #define RGMII_MODE_ENABLE       0x3A
  48
  49 /* GPIO that controls power to DDR on EVM-SK */
  50 #define GPIO_DDR_VTT_EN         7
  51
  52 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  53
  54 static struct am335x_baseboard_id __attribute__((section (".data"))) header;
  55
  56 static inline int board_is_bone(void)
  57 {
  58         return !strncmp(header.name, "A335BONE", HDR_NAME_LEN);
  59 }
  60
  61 static inline int board_is_bone_lt(void)
  62 {
  63         return !strncmp(header.name, "A335BNLT", HDR_NAME_LEN);
  64 }
  65
  66 static inline int board_is_evm_sk(void)
  67 {
  68         return !strncmp("A335X_SK", header.name, HDR_NAME_LEN);
  69 }
  70
  71 static inline int board_is_idk(void)
  72 {
  73         return !strncmp(header.config, "SKU#02", 6);
  74 }
  75
  76 static int __maybe_unused board_is_gp_evm(void)
  77 {
  78         return !strncmp("A33515BB", header.name, 8);
  79 }
  80
  81 int board_is_evm_15_or_later(void)
  82 {
  83         return (!strncmp("A33515BB", header.name, 8) &&
  84                 strncmp("1.5", header.version, 3) <= 0);
  85 }
  86
  87 /*
  88  * Read header information from EEPROM into global structure.
  89  */
  90 static int read_eeprom(void)
  91 {
  92         /* Check if baseboard eeprom is available */
  93         if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  94                 puts("Could not probe the EEPROM; something fundamentally "
  95                         "wrong on the I2C bus.\n");
  96                 return -ENODEV;
  97         }
  98
  99         /* read the eeprom using i2c */
 100         if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)&header,
 101                                                         sizeof(header))) {
 102                 puts("Could not read the EEPROM; something fundamentally"
 103                         " wrong on the I2C bus.\n");
 104                 return -EIO;
 105         }
 106
 107         if (header.magic != 0xEE3355AA) {
 108                 /*
 109                  * read the eeprom using i2c again,
 110                  * but use only a 1 byte address
 111                  */
 112                 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1,
 113                                         (uchar *)&header, sizeof(header))) {
 114                         puts("Could not read the EEPROM; something "
 115                                 "fundamentally wrong on the I2C bus.\n");
 116                         return -EIO;
 117                 }
 118
 119                 if (header.magic != 0xEE3355AA) {
 120                         printf("Incorrect magic number (0x%x) in EEPROM\n",
 121                                         header.magic);
 122                         return -EINVAL;
 123                 }
 124         }
 125
 126         return 0;
 127 }
 128
 129 /* UART Defines */
 130 #ifdef CONFIG_SPL_BUILD
 131 #define UART_RESET              (0x1 << 1)
 132 #define UART_CLK_RUNNING_MASK   0x1
 133 #define UART_SMART_IDLE_EN      (0x1 << 0x3)
 134
 135 static void rtc32k_enable(void)
 136 {
 137         struct rtc_regs *rtc = (struct rtc_regs *)RTC_BASE;
 138
 139         /*
 140          * Unlock the RTC's registers.  For more details please see the
 141          * RTC_SS section of the TRM.  In order to unlock we need to
 142          * write these specific values (keys) in this order.
 143          */
 144         writel(0x83e70b13, &rtc->kick0r);
 145         writel(0x95a4f1e0, &rtc->kick1r);
 146
 147         /* Enable the RTC 32K OSC by setting bits 3 and 6. */
 148         writel((1 << 3) | (1 << 6), &rtc->osc);
 149 }
 150
 151 static const struct ddr_data ddr2_data = {
 152         .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) |
 153                           (MT47H128M16RT25E_RD_DQS<<20) |
 154                           (MT47H128M16RT25E_RD_DQS<<10) |
 155                           (MT47H128M16RT25E_RD_DQS<<0)),
 156         .datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) |
 157                           (MT47H128M16RT25E_WR_DQS<<20) |
 158                           (MT47H128M16RT25E_WR_DQS<<10) |
 159                           (MT47H128M16RT25E_WR_DQS<<0)),
 160         .datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) |
 161                          (MT47H128M16RT25E_PHY_WRLVL<<20) |
 162                          (MT47H128M16RT25E_PHY_WRLVL<<10) |
 163                          (MT47H128M16RT25E_PHY_WRLVL<<0)),
 164         .datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) |
 165                          (MT47H128M16RT25E_PHY_GATELVL<<20) |
 166                          (MT47H128M16RT25E_PHY_GATELVL<<10) |
 167                          (MT47H128M16RT25E_PHY_GATELVL<<0)),
 168         .datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) |
 169                           (MT47H128M16RT25E_PHY_FIFO_WE<<20) |
 170                           (MT47H128M16RT25E_PHY_FIFO_WE<<10) |
 171                           (MT47H128M16RT25E_PHY_FIFO_WE<<0)),
 172         .datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) |
 173                           (MT47H128M16RT25E_PHY_WR_DATA<<20) |
 174                           (MT47H128M16RT25E_PHY_WR_DATA<<10) |
 175                           (MT47H128M16RT25E_PHY_WR_DATA<<0)),
 176         .datauserank0delay = MT47H128M16RT25E_PHY_RANK0_DELAY,
 177         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 178 };
 179
 180 static const struct cmd_control ddr2_cmd_ctrl_data = {
 181         .cmd0csratio = MT47H128M16RT25E_RATIO,
 182         .cmd0dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 183         .cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 184
 185         .cmd1csratio = MT47H128M16RT25E_RATIO,
 186         .cmd1dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 187         .cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 188
 189         .cmd2csratio = MT47H128M16RT25E_RATIO,
 190         .cmd2dldiff = MT47H128M16RT25E_DLL_LOCK_DIFF,
 191         .cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT,
 192 };
 193
 194 static const struct emif_regs ddr2_emif_reg_data = {
 195         .sdram_config = MT47H128M16RT25E_EMIF_SDCFG,
 196         .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF,
 197         .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1,
 198         .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2,
 199         .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3,
 200         .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY,
 201 };
 202
 203 static const struct ddr_data ddr3_data = {
 204         .datardsratio0 = MT41J128MJT125_RD_DQS,
 205         .datawdsratio0 = MT41J128MJT125_WR_DQS,
 206         .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE,
 207         .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA,
 208         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 209 };
 210
 211 static const struct ddr_data ddr3_beagleblack_data = {
 212         .datardsratio0 = MT41K256M16HA125E_RD_DQS,
 213         .datawdsratio0 = MT41K256M16HA125E_WR_DQS,
 214         .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE,
 215         .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA,
 216         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 217 };
 218
 219 static const struct ddr_data ddr3_evm_data = {
 220         .datardsratio0 = MT41J512M8RH125_RD_DQS,
 221         .datawdsratio0 = MT41J512M8RH125_WR_DQS,
 222         .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE,
 223         .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA,
 224         .datadldiff0 = PHY_DLL_LOCK_DIFF,
 225 };
 226
 227 static const struct cmd_control ddr3_cmd_ctrl_data = {
 228         .cmd0csratio = MT41J128MJT125_RATIO,
 229         .cmd0dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 230         .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT,
 231
 232         .cmd1csratio = MT41J128MJT125_RATIO,
 233         .cmd1dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 234         .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT,
 235
 236         .cmd2csratio = MT41J128MJT125_RATIO,
 237         .cmd2dldiff = MT41J128MJT125_DLL_LOCK_DIFF,
 238         .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT,
 239 };
 240
 241 static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = {
 242         .cmd0csratio = MT41K256M16HA125E_RATIO,
 243         .cmd0dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 244         .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 245
 246         .cmd1csratio = MT41K256M16HA125E_RATIO,
 247         .cmd1dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 248         .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 249
 250         .cmd2csratio = MT41K256M16HA125E_RATIO,
 251         .cmd2dldiff = MT41K256M16HA125E_DLL_LOCK_DIFF,
 252         .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT,
 253 };
 254
 255 static const struct cmd_control ddr3_evm_cmd_ctrl_data = {
 256         .cmd0csratio = MT41J512M8RH125_RATIO,
 257         .cmd0dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 258         .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 259
 260         .cmd1csratio = MT41J512M8RH125_RATIO,
 261         .cmd1dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 262         .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 263
 264         .cmd2csratio = MT41J512M8RH125_RATIO,
 265         .cmd2dldiff = MT41J512M8RH125_DLL_LOCK_DIFF,
 266         .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT,
 267 };
 268
 269 static struct emif_regs ddr3_emif_reg_data = {
 270         .sdram_config = MT41J128MJT125_EMIF_SDCFG,
 271         .ref_ctrl = MT41J128MJT125_EMIF_SDREF,
 272         .sdram_tim1 = MT41J128MJT125_EMIF_TIM1,
 273         .sdram_tim2 = MT41J128MJT125_EMIF_TIM2,
 274         .sdram_tim3 = MT41J128MJT125_EMIF_TIM3,
 275         .zq_config = MT41J128MJT125_ZQ_CFG,
 276         .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY |
 277                                 PHY_EN_DYN_PWRDN,
 278 };
 279
 280 static struct emif_regs ddr3_beagleblack_emif_reg_data = {
 281         .sdram_config = MT41K256M16HA125E_EMIF_SDCFG,
 282         .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF,
 283         .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1,
 284         .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2,
 285         .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3,
 286         .zq_config = MT41K256M16HA125E_ZQ_CFG,
 287         .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY,
 288 };
 289
 290 static struct emif_regs ddr3_evm_emif_reg_data = {
 291         .sdram_config = MT41J512M8RH125_EMIF_SDCFG,
 292         .ref_ctrl = MT41J512M8RH125_EMIF_SDREF,
 293         .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1,
 294         .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2,
 295         .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3,
 296         .zq_config = MT41J512M8RH125_ZQ_CFG,
 297         .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY |
 298                                 PHY_EN_DYN_PWRDN,
 299 };
 300 #endif
 301
 302 /*
 303  * early system init of muxing and clocks.
 304  */
 305 void s_init(void)
 306 {
 307         /* WDT1 is already running when the bootloader gets control
 308          * Disable it to avoid "random" resets
 309          */
 310         writel(0xAAAA, &wdtimer->wdtwspr);
 311         while (readl(&wdtimer->wdtwwps) != 0x0)
 312                 ;
 313         writel(0x5555, &wdtimer->wdtwspr);
 314         while (readl(&wdtimer->wdtwwps) != 0x0)
 315                 ;
 316
 317 #ifdef CONFIG_SPL_BUILD
 318         /* Setup the PLLs and the clocks for the peripherals */
 319         pll_init();
 320
 321         /* Enable RTC32K clock */
 322         rtc32k_enable();
 323
 324         /* UART softreset */
 325         u32 regVal;
 326
 327 #ifdef CONFIG_SERIAL1
 328         enable_uart0_pin_mux();
 329 #endif /* CONFIG_SERIAL1 */
 330 #ifdef CONFIG_SERIAL2
 331         enable_uart1_pin_mux();
 332 #endif /* CONFIG_SERIAL2 */
 333 #ifdef CONFIG_SERIAL3
 334         enable_uart2_pin_mux();
 335 #endif /* CONFIG_SERIAL3 */
 336 #ifdef CONFIG_SERIAL4
 337         enable_uart3_pin_mux();
 338 #endif /* CONFIG_SERIAL4 */
 339 #ifdef CONFIG_SERIAL5
 340         enable_uart4_pin_mux();
 341 #endif /* CONFIG_SERIAL5 */
 342 #ifdef CONFIG_SERIAL6
 343         enable_uart5_pin_mux();
 344 #endif /* CONFIG_SERIAL6 */
 345
 346         regVal = readl(&uart_base->uartsyscfg);
 347         regVal |= UART_RESET;
 348         writel(regVal, &uart_base->uartsyscfg);
 349         while ((readl(&uart_base->uartsyssts) &
 350                 UART_CLK_RUNNING_MASK) != UART_CLK_RUNNING_MASK)
 351                 ;
 352
 353         /* Disable smart idle */
 354         regVal = readl(&uart_base->uartsyscfg);
 355         regVal |= UART_SMART_IDLE_EN;
 356         writel(regVal, &uart_base->uartsyscfg);
 357
 358         gd = &gdata;
 359
 360         preloader_console_init();
 361
 362         /* Initalize the board header */
 363         enable_i2c0_pin_mux();
 364         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 365         if (read_eeprom() < 0)
 366                 puts("Could not get board ID.\n");
 367
 368         enable_board_pin_mux(&header);
 369         if (board_is_evm_sk()) {
 370                 /*
 371                  * EVM SK 1.2A and later use gpio0_7 to enable DDR3.
 372                  * This is safe enough to do on older revs.
 373                  */
 374                 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
 375                 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
 376         }
 377
 378         if (board_is_evm_sk())
 379                 config_ddr(303, MT41J128MJT125_IOCTRL_VALUE, &ddr3_data,
 380                            &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0);
 381         else if (board_is_bone_lt())
 382                 config_ddr(400, MT41K256M16HA125E_IOCTRL_VALUE,
 383                            &ddr3_beagleblack_data,
 384                            &ddr3_beagleblack_cmd_ctrl_data,
 385                            &ddr3_beagleblack_emif_reg_data, 0);
 386         else if (board_is_evm_15_or_later())
 387                 config_ddr(303, MT41J512M8RH125_IOCTRL_VALUE, &ddr3_evm_data,
 388                            &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0);
 389         else
 390                 config_ddr(266, MT47H128M16RT25E_IOCTRL_VALUE, &ddr2_data,
 391                            &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0);
 392 #endif
 393 }
 394
 395 /*
 396  * Basic board specific setup.  Pinmux has been handled already.
 397  */
 398 int board_init(void)
 399 {
 400         i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 401         if (read_eeprom() < 0)
 402                 puts("Could not get board ID.\n");
 403
 404         gd->bd->bi_boot_params = PHYS_DRAM_1 + 0x100;
 405
 406         gpmc_init();
 407
 408         return 0;
 409 }
 410
 411 #ifdef CONFIG_BOARD_LATE_INIT
 412 int board_late_init(void)
 413 {
 414 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 415         char safe_string[HDR_NAME_LEN + 1];
 416
 417         /* Now set variables based on the header. */
 418         strncpy(safe_string, (char *)header.name, sizeof(header.name));
 419         safe_string[sizeof(header.name)] = 0;
 420         setenv("board_name", safe_string);
 421
 422         strncpy(safe_string, (char *)header.version, sizeof(header.version));
 423         safe_string[sizeof(header.version)] = 0;
 424         setenv("board_rev", safe_string);
 425 #endif
 426
 427         return 0;
 428 }
 429 #endif
 430
 431 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 432         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 433 static void cpsw_control(int enabled)
 434 {
 435         /* VTP can be added here */
 436
 437         return;
 438 }
 439
 440 static struct cpsw_slave_data cpsw_slaves[] = {
 441         {
 442                 .slave_reg_ofs  = 0x208,
 443                 .sliver_reg_ofs = 0xd80,
 444                 .phy_id         = 0,
 445         },
 446         {
 447                 .slave_reg_ofs  = 0x308,
 448                 .sliver_reg_ofs = 0xdc0,
 449                 .phy_id         = 1,
 450         },
 451 };
 452
 453 static struct cpsw_platform_data cpsw_data = {
 454         .mdio_base              = CPSW_MDIO_BASE,
 455         .cpsw_base              = CPSW_BASE,
 456         .mdio_div               = 0xff,
 457         .channels               = 8,
 458         .cpdma_reg_ofs          = 0x800,
 459         .slaves                 = 1,
 460         .slave_data             = cpsw_slaves,
 461         .ale_reg_ofs            = 0xd00,
 462         .ale_entries            = 1024,
 463         .host_port_reg_ofs      = 0x108,
 464         .hw_stats_reg_ofs       = 0x900,
 465         .mac_control            = (1 << 5),
 466         .control                = cpsw_control,
 467         .host_port_num          = 0,
 468         .version                = CPSW_CTRL_VERSION_2,
 469 };
 470 #endif
 471
 472 #if defined(CONFIG_DRIVER_TI_CPSW) || \
 473         (defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET))
 474 int board_eth_init(bd_t *bis)
 475 {
 476         int rv, n = 0;
 477         uint8_t mac_addr[6];
 478         uint32_t mac_hi, mac_lo;
 479
 480         /* try reading mac address from efuse */
 481         mac_lo = readl(&cdev->macid0l);
 482         mac_hi = readl(&cdev->macid0h);
 483         mac_addr[0] = mac_hi & 0xFF;
 484         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 485         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 486         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 487         mac_addr[4] = mac_lo & 0xFF;
 488         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 489
 490 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 491         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 492         if (!getenv("ethaddr")) {
 493                 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
 494
 495                 if (is_valid_ether_addr(mac_addr))
 496                         eth_setenv_enetaddr("ethaddr", mac_addr);
 497         }
 498
 499         if (board_is_bone() || board_is_bone_lt() || board_is_idk()) {
 500                 writel(MII_MODE_ENABLE, &cdev->miisel);
 501                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 502                                 PHY_INTERFACE_MODE_MII;
 503         } else {
 504                 writel(RGMII_MODE_ENABLE, &cdev->miisel);
 505                 cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if =
 506                                 PHY_INTERFACE_MODE_RGMII;
 507         }
 508
 509         rv = cpsw_register(&cpsw_data);
 510         if (rv < 0)
 511                 printf("Error %d registering CPSW switch\n", rv);
 512         else
 513                 n += rv;
 514
 515         /*
 516          *
 517          * CPSW RGMII Internal Delay Mode is not supported in all PVT
 518          * operating points.  So we must set the TX clock delay feature
 519          * in the AR8051 PHY.  Since we only support a single ethernet
 520          * device in U-Boot, we only do this for the first instance.
 521          */
 522 #define AR8051_PHY_DEBUG_ADDR_REG       0x1d
 523 #define AR8051_PHY_DEBUG_DATA_REG       0x1e
 524 #define AR8051_DEBUG_RGMII_CLK_DLY_REG  0x5
 525 #define AR8051_RGMII_TX_CLK_DLY         0x100
 526
 527         if (board_is_evm_sk() || board_is_gp_evm()) {
 528                 const char *devname;
 529                 devname = miiphy_get_current_dev();
 530
 531                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG,
 532                                 AR8051_DEBUG_RGMII_CLK_DLY_REG);
 533                 miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG,
 534                                 AR8051_RGMII_TX_CLK_DLY);
 535         }
 536 #endif
 537 #if defined(CONFIG_USB_ETHER) && \
 538         (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT))
 539         if (is_valid_ether_addr(mac_addr))
 540                 eth_setenv_enetaddr("usbnet_devaddr", mac_addr);
 541
 542         rv = usb_eth_initialize(bis);
 543         if (rv < 0)
 544                 printf("Error %d registering USB_ETHER\n", rv);
 545         else
 546                 n += rv;
 547 #endif
 548         return n;
 549 }
 550 #endif