board/ti/am43xx/board.c

   1 /*
   2  * board.c
   3  *
   4  * Board functions for TI AM43XX based boards
   5  *
   6  * Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12 #include <i2c.h>
  13 #include <asm/errno.h>
  14 #include <spl.h>
  15 #include <asm/arch/clock.h>
  16 #include <asm/arch/sys_proto.h>
  17 #include <asm/arch/mux.h>
  18 #include <asm/arch/ddr_defs.h>
  19 #include <asm/arch/gpio.h>
  20 #include <asm/emif.h>
  21 #include "board.h"
  22 #include <power/pmic.h>
  23 #include <power/tps65218.h>
  24 #include <power/tps62362.h>
  25 #include <miiphy.h>
  26 #include <cpsw.h>
  27
  28 DECLARE_GLOBAL_DATA_PTR;
  29
  30 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  31
  32 /*
  33  * Read header information from EEPROM into global structure.
  34  */
  35 static int read_eeprom(struct am43xx_board_id *header)
  36 {
  37         /* Check if baseboard eeprom is available */
  38         if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) {
  39                 printf("Could not probe the EEPROM at 0x%x\n",
  40                        CONFIG_SYS_I2C_EEPROM_ADDR);
  41                 return -ENODEV;
  42         }
  43
  44         /* read the eeprom using i2c */
  45         if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header,
  46                      sizeof(struct am43xx_board_id))) {
  47                 printf("Could not read the EEPROM\n");
  48                 return -EIO;
  49         }
  50
  51         if (header->magic != 0xEE3355AA) {
  52                 /*
  53                  * read the eeprom using i2c again,
  54                  * but use only a 1 byte address
  55                  */
  56                 if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header,
  57                              sizeof(struct am43xx_board_id))) {
  58                         printf("Could not read the EEPROM at 0x%x\n",
  59                                CONFIG_SYS_I2C_EEPROM_ADDR);
  60                         return -EIO;
  61                 }
  62
  63                 if (header->magic != 0xEE3355AA) {
  64                         printf("Incorrect magic number (0x%x) in EEPROM\n",
  65                                header->magic);
  66                         return -EINVAL;
  67                 }
  68         }
  69
  70         strncpy(am43xx_board_name, (char *)header->name, sizeof(header->name));
  71         am43xx_board_name[sizeof(header->name)] = 0;
  72
  73         strncpy(am43xx_board_rev, (char *)header->version, sizeof(header->version));
  74         am43xx_board_rev[sizeof(header->version)] = 0;
  75
  76         return 0;
  77 }
  78
  79 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
  80
  81 #define NUM_OPPS        6
  82
  83 const struct dpll_params dpll_mpu[NUM_CRYSTAL_FREQ][NUM_OPPS] = {
  84         {       /* 19.2 MHz */
  85                 {125, 3, 2, -1, -1, -1, -1},    /* OPP 50 */
  86                 {-1, -1, -1, -1, -1, -1, -1},   /* OPP RESERVED */
  87                 {125, 3, 1, -1, -1, -1, -1},    /* OPP 100 */
  88                 {150, 3, 1, -1, -1, -1, -1},    /* OPP 120 */
  89                 {125, 2, 1, -1, -1, -1, -1},    /* OPP TB */
  90                 {625, 11, 1, -1, -1, -1, -1}    /* OPP NT */
  91         },
  92         {       /* 24 MHz */
  93                 {300, 23, 1, -1, -1, -1, -1},   /* OPP 50 */
  94                 {-1, -1, -1, -1, -1, -1, -1},   /* OPP RESERVED */
  95                 {600, 23, 1, -1, -1, -1, -1},   /* OPP 100 */
  96                 {720, 23, 1, -1, -1, -1, -1},   /* OPP 120 */
  97                 {800, 23, 1, -1, -1, -1, -1},   /* OPP TB */
  98                 {1000, 23, 1, -1, -1, -1, -1}   /* OPP NT */
  99         },
 100         {       /* 25 MHz */
 101                 {300, 24, 1, -1, -1, -1, -1},   /* OPP 50 */
 102                 {-1, -1, -1, -1, -1, -1, -1},   /* OPP RESERVED */
 103                 {600, 24, 1, -1, -1, -1, -1},   /* OPP 100 */
 104                 {720, 24, 1, -1, -1, -1, -1},   /* OPP 120 */
 105                 {800, 24, 1, -1, -1, -1, -1},   /* OPP TB */
 106                 {1000, 24, 1, -1, -1, -1, -1}   /* OPP NT */
 107         },
 108         {       /* 26 MHz */
 109                 {300, 25, 1, -1, -1, -1, -1},   /* OPP 50 */
 110                 {-1, -1, -1, -1, -1, -1, -1},   /* OPP RESERVED */
 111                 {600, 25, 1, -1, -1, -1, -1},   /* OPP 100 */
 112                 {720, 25, 1, -1, -1, -1, -1},   /* OPP 120 */
 113                 {800, 25, 1, -1, -1, -1, -1},   /* OPP TB */
 114                 {1000, 25, 1, -1, -1, -1, -1}   /* OPP NT */
 115         },
 116 };
 117
 118 const struct dpll_params dpll_core[NUM_CRYSTAL_FREQ] = {
 119                 {625, 11, -1, -1, 10, 8, 4},    /* 19.2 MHz */
 120                 {1000, 23, -1, -1, 10, 8, 4},   /* 24 MHz */
 121                 {1000, 24, -1, -1, 10, 8, 4},   /* 25 MHz */
 122                 {1000, 25, -1, -1, 10, 8, 4}    /* 26 MHz */
 123 };
 124
 125 const struct dpll_params dpll_per[NUM_CRYSTAL_FREQ] = {
 126                 {400, 7, 5, -1, -1, -1, -1},    /* 19.2 MHz */
 127                 {400, 9, 5, -1, -1, -1, -1},    /* 24 MHz */
 128                 {384, 9, 5, -1, -1, -1, -1},    /* 25 MHz */
 129                 {480, 12, 5, -1, -1, -1, -1}    /* 26 MHz */
 130 };
 131
 132 const struct dpll_params epos_evm_dpll_ddr[NUM_CRYSTAL_FREQ] = {
 133                 {665, 47, 1, -1, 4, -1, -1}, /*19.2*/
 134                 {133, 11, 1, -1, 4, -1, -1}, /* 24 MHz */
 135                 {266, 24, 1, -1, 4, -1, -1}, /* 25 MHz */
 136                 {133, 12, 1, -1, 4, -1, -1}  /* 26 MHz */
 137 };
 138
 139 const struct dpll_params gp_evm_dpll_ddr = {
 140                 50, 2, 1, -1, 2, -1, -1};
 141
 142 static const struct dpll_params idk_dpll_ddr = {
 143         400, 23, 1, -1, 2, -1, -1
 144 };
 145
 146 const struct ctrl_ioregs ioregs_lpddr2 = {
 147         .cm0ioctl               = LPDDR2_ADDRCTRL_IOCTRL_VALUE,
 148         .cm1ioctl               = LPDDR2_ADDRCTRL_WD0_IOCTRL_VALUE,
 149         .cm2ioctl               = LPDDR2_ADDRCTRL_WD1_IOCTRL_VALUE,
 150         .dt0ioctl               = LPDDR2_DATA0_IOCTRL_VALUE,
 151         .dt1ioctl               = LPDDR2_DATA0_IOCTRL_VALUE,
 152         .dt2ioctrl              = LPDDR2_DATA0_IOCTRL_VALUE,
 153         .dt3ioctrl              = LPDDR2_DATA0_IOCTRL_VALUE,
 154         .emif_sdram_config_ext  = 0x1,
 155 };
 156
 157 const struct emif_regs emif_regs_lpddr2 = {
 158         .sdram_config                   = 0x808012BA,
 159         .ref_ctrl                       = 0x0000040D,
 160         .sdram_tim1                     = 0xEA86B411,
 161         .sdram_tim2                     = 0x103A094A,
 162         .sdram_tim3                     = 0x0F6BA37F,
 163         .read_idle_ctrl                 = 0x00050000,
 164         .zq_config                      = 0x50074BE4,
 165         .temp_alert_config              = 0x0,
 166         .emif_rd_wr_lvl_rmp_win         = 0x0,
 167         .emif_rd_wr_lvl_rmp_ctl         = 0x0,
 168         .emif_rd_wr_lvl_ctl             = 0x0,
 169         .emif_ddr_phy_ctlr_1            = 0x0E284006,
 170         .emif_rd_wr_exec_thresh         = 0x80000405,
 171         .emif_ddr_ext_phy_ctrl_1        = 0x04010040,
 172         .emif_ddr_ext_phy_ctrl_2        = 0x00500050,
 173         .emif_ddr_ext_phy_ctrl_3        = 0x00500050,
 174         .emif_ddr_ext_phy_ctrl_4        = 0x00500050,
 175         .emif_ddr_ext_phy_ctrl_5        = 0x00500050,
 176         .emif_prio_class_serv_map       = 0x80000001,
 177         .emif_connect_id_serv_1_map     = 0x80000094,
 178         .emif_connect_id_serv_2_map     = 0x00000000,
 179         .emif_cos_config                        = 0x000FFFFF
 180 };
 181
 182 const struct ctrl_ioregs ioregs_ddr3 = {
 183         .cm0ioctl               = DDR3_ADDRCTRL_IOCTRL_VALUE,
 184         .cm1ioctl               = DDR3_ADDRCTRL_WD0_IOCTRL_VALUE,
 185         .cm2ioctl               = DDR3_ADDRCTRL_WD1_IOCTRL_VALUE,
 186         .dt0ioctl               = DDR3_DATA0_IOCTRL_VALUE,
 187         .dt1ioctl               = DDR3_DATA0_IOCTRL_VALUE,
 188         .dt2ioctrl              = DDR3_DATA0_IOCTRL_VALUE,
 189         .dt3ioctrl              = DDR3_DATA0_IOCTRL_VALUE,
 190         .emif_sdram_config_ext  = 0xc163,
 191 };
 192
 193 const struct emif_regs ddr3_emif_regs_400Mhz = {
 194         .sdram_config                   = 0x638413B2,
 195         .ref_ctrl                       = 0x00000C30,
 196         .sdram_tim1                     = 0xEAAAD4DB,
 197         .sdram_tim2                     = 0x266B7FDA,
 198         .sdram_tim3                     = 0x107F8678,
 199         .read_idle_ctrl                 = 0x00050000,
 200         .zq_config                      = 0x50074BE4,
 201         .temp_alert_config              = 0x0,
 202         .emif_ddr_phy_ctlr_1            = 0x0E004008,
 203         .emif_ddr_ext_phy_ctrl_1        = 0x08020080,
 204         .emif_ddr_ext_phy_ctrl_2        = 0x00400040,
 205         .emif_ddr_ext_phy_ctrl_3        = 0x00400040,
 206         .emif_ddr_ext_phy_ctrl_4        = 0x00400040,
 207         .emif_ddr_ext_phy_ctrl_5        = 0x00400040,
 208         .emif_rd_wr_lvl_rmp_win         = 0x0,
 209         .emif_rd_wr_lvl_rmp_ctl         = 0x0,
 210         .emif_rd_wr_lvl_ctl             = 0x0,
 211         .emif_rd_wr_exec_thresh         = 0x80000405,
 212         .emif_prio_class_serv_map       = 0x80000001,
 213         .emif_connect_id_serv_1_map     = 0x80000094,
 214         .emif_connect_id_serv_2_map     = 0x00000000,
 215         .emif_cos_config                = 0x000FFFFF
 216 };
 217
 218 /* EMIF DDR3 Configurations are different for beta AM43X GP EVMs */
 219 const struct emif_regs ddr3_emif_regs_400Mhz_beta = {
 220         .sdram_config                   = 0x638413B2,
 221         .ref_ctrl                       = 0x00000C30,
 222         .sdram_tim1                     = 0xEAAAD4DB,
 223         .sdram_tim2                     = 0x266B7FDA,
 224         .sdram_tim3                     = 0x107F8678,
 225         .read_idle_ctrl                 = 0x00050000,
 226         .zq_config                      = 0x50074BE4,
 227         .temp_alert_config              = 0x0,
 228         .emif_ddr_phy_ctlr_1            = 0x0E004008,
 229         .emif_ddr_ext_phy_ctrl_1        = 0x08020080,
 230         .emif_ddr_ext_phy_ctrl_2        = 0x00000065,
 231         .emif_ddr_ext_phy_ctrl_3        = 0x00000091,
 232         .emif_ddr_ext_phy_ctrl_4        = 0x000000B5,
 233         .emif_ddr_ext_phy_ctrl_5        = 0x000000E5,
 234         .emif_rd_wr_exec_thresh         = 0x80000405,
 235         .emif_prio_class_serv_map       = 0x80000001,
 236         .emif_connect_id_serv_1_map     = 0x80000094,
 237         .emif_connect_id_serv_2_map     = 0x00000000,
 238         .emif_cos_config                = 0x000FFFFF
 239 };
 240
 241 /* EMIF DDR3 Configurations are different for production AM43X GP EVMs */
 242 const struct emif_regs ddr3_emif_regs_400Mhz_production = {
 243         .sdram_config                   = 0x638413B2,
 244         .ref_ctrl                       = 0x00000C30,
 245         .sdram_tim1                     = 0xEAAAD4DB,
 246         .sdram_tim2                     = 0x266B7FDA,
 247         .sdram_tim3                     = 0x107F8678,
 248         .read_idle_ctrl                 = 0x00050000,
 249         .zq_config                      = 0x50074BE4,
 250         .temp_alert_config              = 0x0,
 251         .emif_ddr_phy_ctlr_1            = 0x0E004008,
 252         .emif_ddr_ext_phy_ctrl_1        = 0x08020080,
 253         .emif_ddr_ext_phy_ctrl_2        = 0x00000066,
 254         .emif_ddr_ext_phy_ctrl_3        = 0x00000091,
 255         .emif_ddr_ext_phy_ctrl_4        = 0x000000B9,
 256         .emif_ddr_ext_phy_ctrl_5        = 0x000000E6,
 257         .emif_rd_wr_exec_thresh         = 0x80000405,
 258         .emif_prio_class_serv_map       = 0x80000001,
 259         .emif_connect_id_serv_1_map     = 0x80000094,
 260         .emif_connect_id_serv_2_map     = 0x00000000,
 261         .emif_cos_config                = 0x000FFFFF
 262 };
 263
 264 static const struct emif_regs ddr3_sk_emif_regs_400Mhz = {
 265         .sdram_config                   = 0x638413b2,
 266         .sdram_config2                  = 0x00000000,
 267         .ref_ctrl                       = 0x00000c30,
 268         .sdram_tim1                     = 0xeaaad4db,
 269         .sdram_tim2                     = 0x266b7fda,
 270         .sdram_tim3                     = 0x107f8678,
 271         .read_idle_ctrl                 = 0x00050000,
 272         .zq_config                      = 0x50074be4,
 273         .temp_alert_config              = 0x0,
 274         .emif_ddr_phy_ctlr_1            = 0x0e084008,
 275         .emif_ddr_ext_phy_ctrl_1        = 0x08020080,
 276         .emif_ddr_ext_phy_ctrl_2        = 0x89,
 277         .emif_ddr_ext_phy_ctrl_3        = 0x90,
 278         .emif_ddr_ext_phy_ctrl_4        = 0x8e,
 279         .emif_ddr_ext_phy_ctrl_5        = 0x8d,
 280         .emif_rd_wr_lvl_rmp_win         = 0x0,
 281         .emif_rd_wr_lvl_rmp_ctl         = 0x00000000,
 282         .emif_rd_wr_lvl_ctl             = 0x00000000,
 283         .emif_rd_wr_exec_thresh         = 0x80000000,
 284         .emif_prio_class_serv_map       = 0x80000001,
 285         .emif_connect_id_serv_1_map     = 0x80000094,
 286         .emif_connect_id_serv_2_map     = 0x00000000,
 287         .emif_cos_config                = 0x000FFFFF
 288 };
 289
 290 static const struct emif_regs ddr3_idk_emif_regs_400Mhz = {
 291         .sdram_config                   = 0x61a11b32,
 292         .sdram_config2                  = 0x00000000,
 293         .ref_ctrl                       = 0x00000c30,
 294         .sdram_tim1                     = 0xeaaad4db,
 295         .sdram_tim2                     = 0x266b7fda,
 296         .sdram_tim3                     = 0x107f8678,
 297         .read_idle_ctrl                 = 0x00050000,
 298         .zq_config                      = 0x50074be4,
 299         .temp_alert_config              = 0x00000000,
 300         .emif_ddr_phy_ctlr_1            = 0x00008009,
 301         .emif_ddr_ext_phy_ctrl_1        = 0x08020080,
 302         .emif_ddr_ext_phy_ctrl_2        = 0x00000040,
 303         .emif_ddr_ext_phy_ctrl_3        = 0x0000003e,
 304         .emif_ddr_ext_phy_ctrl_4        = 0x00000051,
 305         .emif_ddr_ext_phy_ctrl_5        = 0x00000051,
 306         .emif_rd_wr_lvl_rmp_win         = 0x00000000,
 307         .emif_rd_wr_lvl_rmp_ctl         = 0x00000000,
 308         .emif_rd_wr_lvl_ctl             = 0x00000000,
 309         .emif_rd_wr_exec_thresh         = 0x00000405,
 310         .emif_prio_class_serv_map       = 0x00000000,
 311         .emif_connect_id_serv_1_map     = 0x00000000,
 312         .emif_connect_id_serv_2_map     = 0x00000000,
 313         .emif_cos_config                = 0x00ffffff
 314 };
 315
 316 /*
 317  * get_sys_clk_index : returns the index of the sys_clk read from
 318  *                      ctrl status register. This value is either
 319  *                      read from efuse or sysboot pins.
 320  */
 321 static u32 get_sys_clk_index(void)
 322 {
 323         struct ctrl_stat *ctrl = (struct ctrl_stat *)CTRL_BASE;
 324         u32 ind = readl(&ctrl->statusreg), src;
 325
 326         src = (ind & CTRL_CRYSTAL_FREQ_SRC_MASK) >> CTRL_CRYSTAL_FREQ_SRC_SHIFT;
 327         if (src == CTRL_CRYSTAL_FREQ_SRC_EFUSE) /* Value read from EFUSE */
 328                 return ((ind & CTRL_CRYSTAL_FREQ_SELECTION_MASK) >>
 329                         CTRL_CRYSTAL_FREQ_SELECTION_SHIFT);
 330         else /* Value read from SYS BOOT pins */
 331                 return ((ind & CTRL_SYSBOOT_15_14_MASK) >>
 332                         CTRL_SYSBOOT_15_14_SHIFT);
 333 }
 334
 335 const struct dpll_params *get_dpll_ddr_params(void)
 336 {
 337         int ind = get_sys_clk_index();
 338
 339         if (board_is_eposevm())
 340                 return &epos_evm_dpll_ddr[ind];
 341         else if (board_is_gpevm() || board_is_sk())
 342                 return &gp_evm_dpll_ddr;
 343         else if (board_is_idk())
 344                 return &idk_dpll_ddr;
 345
 346         printf(" Board '%s' not supported\n", am43xx_board_name);
 347         return NULL;
 348 }
 349
 350
 351 /*
 352  * get_opp_offset:
 353  * Returns the index for safest OPP of the device to boot.
 354  * max_off:     Index of the MAX OPP in DEV ATTRIBUTE register.
 355  * min_off:     Index of the MIN OPP in DEV ATTRIBUTE register.
 356  * This data is read from dev_attribute register which is e-fused.
 357  * A'1' in bit indicates OPP disabled and not available, a '0' indicates
 358  * OPP available. Lowest OPP starts with min_off. So returning the
 359  * bit with rightmost '0'.
 360  */
 361 static int get_opp_offset(int max_off, int min_off)
 362 {
 363         struct ctrl_stat *ctrl = (struct ctrl_stat *)CTRL_BASE;
 364         int opp, offset, i;
 365
 366         /* Bits 0:11 are defined to be the MPU_MAX_FREQ */
 367         opp = readl(&ctrl->dev_attr) & ~0xFFFFF000;
 368
 369         for (i = max_off; i >= min_off; i--) {
 370                 offset = opp & (1 << i);
 371                 if (!offset)
 372                         return i;
 373         }
 374
 375         return min_off;
 376 }
 377
 378 const struct dpll_params *get_dpll_mpu_params(void)
 379 {
 380         int opp = get_opp_offset(DEV_ATTR_MAX_OFFSET, DEV_ATTR_MIN_OFFSET);
 381         u32 ind = get_sys_clk_index();
 382
 383         return &dpll_mpu[ind][opp];
 384 }
 385
 386 const struct dpll_params *get_dpll_core_params(void)
 387 {
 388         int ind = get_sys_clk_index();
 389
 390         return &dpll_core[ind];
 391 }
 392
 393 const struct dpll_params *get_dpll_per_params(void)
 394 {
 395         int ind = get_sys_clk_index();
 396
 397         return &dpll_per[ind];
 398 }
 399
 400 void scale_vcores_generic(u32 m)
 401 {
 402         int mpu_vdd;
 403
 404         if (i2c_probe(TPS65218_CHIP_PM))
 405                 return;
 406
 407         switch (m) {
 408         case 1000:
 409                 mpu_vdd = TPS65218_DCDC_VOLT_SEL_1330MV;
 410                 break;
 411         case 800:
 412                 mpu_vdd = TPS65218_DCDC_VOLT_SEL_1260MV;
 413                 break;
 414         case 720:
 415                 mpu_vdd = TPS65218_DCDC_VOLT_SEL_1200MV;
 416                 break;
 417         case 600:
 418                 mpu_vdd = TPS65218_DCDC_VOLT_SEL_1100MV;
 419                 break;
 420         case 300:
 421                 mpu_vdd = TPS65218_DCDC_VOLT_SEL_0950MV;
 422                 break;
 423         default:
 424                 puts("Unknown MPU clock, not scaling\n");
 425                 return;
 426         }
 427
 428         /* Set DCDC1 (CORE) voltage to 1.1V */
 429         if (tps65218_voltage_update(TPS65218_DCDC1,
 430                                     TPS65218_DCDC_VOLT_SEL_1100MV)) {
 431                 printf("%s failure\n", __func__);
 432                 return;
 433         }
 434
 435         /* Set DCDC2 (MPU) voltage */
 436         if (tps65218_voltage_update(TPS65218_DCDC2, mpu_vdd)) {
 437                 printf("%s failure\n", __func__);
 438                 return;
 439         }
 440 }
 441
 442 void scale_vcores_idk(u32 m)
 443 {
 444         int mpu_vdd;
 445
 446         if (i2c_probe(TPS62362_I2C_ADDR))
 447                 return;
 448
 449         switch (m) {
 450         case 1000:
 451                 mpu_vdd = TPS62362_DCDC_VOLT_SEL_1330MV;
 452                 break;
 453         case 800:
 454                 mpu_vdd = TPS62362_DCDC_VOLT_SEL_1260MV;
 455                 break;
 456         case 720:
 457                 mpu_vdd = TPS62362_DCDC_VOLT_SEL_1200MV;
 458                 break;
 459         case 600:
 460                 mpu_vdd = TPS62362_DCDC_VOLT_SEL_1100MV;
 461                 break;
 462         case 300:
 463                 mpu_vdd = TPS62362_DCDC_VOLT_SEL_1330MV;
 464                 break;
 465         default:
 466                 puts("Unknown MPU clock, not scaling\n");
 467                 return;
 468         }
 469
 470         /* Set VDD_MPU voltage */
 471         if (tps62362_voltage_update(TPS62362_SET3, mpu_vdd)) {
 472                 printf("%s failure\n", __func__);
 473                 return;
 474         }
 475 }
 476
 477 void scale_vcores(void)
 478 {
 479         const struct dpll_params *mpu_params;
 480         struct am43xx_board_id header;
 481
 482         enable_i2c0_pin_mux();
 483         i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
 484         if (read_eeprom(&header) < 0)
 485                 puts("Could not get board ID.\n");
 486
 487         /* Get the frequency */
 488         mpu_params = get_dpll_mpu_params();
 489
 490         if (board_is_idk())
 491                 scale_vcores_idk(mpu_params->m);
 492         else
 493                 scale_vcores_generic(mpu_params->m);
 494 }
 495
 496 void set_uart_mux_conf(void)
 497 {
 498         enable_uart0_pin_mux();
 499 }
 500
 501 void set_mux_conf_regs(void)
 502 {
 503         enable_board_pin_mux();
 504 }
 505
 506 static void enable_vtt_regulator(void)
 507 {
 508         u32 temp;
 509
 510         /* enable module */
 511         writel(GPIO_CTRL_ENABLEMODULE, AM33XX_GPIO5_BASE + OMAP_GPIO_CTRL);
 512
 513         /* enable output for GPIO5_7 */
 514         writel(GPIO_SETDATAOUT(7),
 515                AM33XX_GPIO5_BASE + OMAP_GPIO_SETDATAOUT);
 516         temp = readl(AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
 517         temp = temp & ~(GPIO_OE_ENABLE(7));
 518         writel(temp, AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
 519 }
 520
 521 void sdram_init(void)
 522 {
 523         /*
 524          * EPOS EVM has 1GB LPDDR2 connected to EMIF.
 525          * GP EMV has 1GB DDR3 connected to EMIF
 526          * along with VTT regulator.
 527          */
 528         if (board_is_eposevm()) {
 529                 config_ddr(0, &ioregs_lpddr2, NULL, NULL, &emif_regs_lpddr2, 0);
 530         } else if (board_is_evm_14_or_later()) {
 531                 enable_vtt_regulator();
 532                 config_ddr(0, &ioregs_ddr3, NULL, NULL,
 533                            &ddr3_emif_regs_400Mhz_production, 0);
 534         } else if (board_is_evm_12_or_later()) {
 535                 enable_vtt_regulator();
 536                 config_ddr(0, &ioregs_ddr3, NULL, NULL,
 537                            &ddr3_emif_regs_400Mhz_beta, 0);
 538         } else if (board_is_gpevm()) {
 539                 enable_vtt_regulator();
 540                 config_ddr(0, &ioregs_ddr3, NULL, NULL,
 541                            &ddr3_emif_regs_400Mhz, 0);
 542         } else if (board_is_sk()) {
 543                 config_ddr(400, &ioregs_ddr3, NULL, NULL,
 544                            &ddr3_sk_emif_regs_400Mhz, 0);
 545         } else if (board_is_idk()) {
 546                 config_ddr(400, &ioregs_ddr3, NULL, NULL,
 547                            &ddr3_idk_emif_regs_400Mhz, 0);
 548         }
 549 }
 550 #endif
 551
 552 /* setup board specific PMIC */
 553 int power_init_board(void)
 554 {
 555         struct pmic *p;
 556
 557         if (board_is_idk()) {
 558                 power_tps62362_init(I2C_PMIC);
 559                 p = pmic_get("TPS62362");
 560                 if (p && !pmic_probe(p))
 561                         puts("PMIC:  TPS62362\n");
 562         } else {
 563                 power_tps65218_init(I2C_PMIC);
 564                 p = pmic_get("TPS65218_PMIC");
 565                 if (p && !pmic_probe(p))
 566                         puts("PMIC:  TPS65218\n");
 567         }
 568
 569         return 0;
 570 }
 571
 572 int board_init(void)
 573 {
 574         struct l3f_cfg_bwlimiter *bwlimiter = (struct l3f_cfg_bwlimiter *)L3F_CFG_BWLIMITER;
 575         u32 mreqprio_0, mreqprio_1, modena_init0_bw_fractional,
 576             modena_init0_bw_integer, modena_init0_watermark_0;
 577
 578         gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 579         gpmc_init();
 580
 581         /* Clear all important bits for DSS errata that may need to be tweaked*/
 582         mreqprio_0 = readl(&cdev->mreqprio_0) & MREQPRIO_0_SAB_INIT1_MASK &
 583                            MREQPRIO_0_SAB_INIT0_MASK;
 584
 585         mreqprio_1 = readl(&cdev->mreqprio_1) & MREQPRIO_1_DSS_MASK;
 586
 587         modena_init0_bw_fractional = readl(&bwlimiter->modena_init0_bw_fractional) &
 588                                            BW_LIMITER_BW_FRAC_MASK;
 589
 590         modena_init0_bw_integer = readl(&bwlimiter->modena_init0_bw_integer) &
 591                                         BW_LIMITER_BW_INT_MASK;
 592
 593         modena_init0_watermark_0 = readl(&bwlimiter->modena_init0_watermark_0) &
 594                                          BW_LIMITER_BW_WATERMARK_MASK;
 595
 596         /* Setting MReq Priority of the DSS*/
 597         mreqprio_0 |= 0x77;
 598
 599         /*
 600          * Set L3 Fast Configuration Register
 601          * Limiting bandwith for ARM core to 700 MBPS
 602          */
 603         modena_init0_bw_fractional |= 0x10;
 604         modena_init0_bw_integer |= 0x3;
 605
 606         writel(mreqprio_0, &cdev->mreqprio_0);
 607         writel(mreqprio_1, &cdev->mreqprio_1);
 608
 609         writel(modena_init0_bw_fractional, &bwlimiter->modena_init0_bw_fractional);
 610         writel(modena_init0_bw_integer, &bwlimiter->modena_init0_bw_integer);
 611         writel(modena_init0_watermark_0, &bwlimiter->modena_init0_watermark_0);
 612
 613         return 0;
 614 }
 615
 616 #ifdef CONFIG_BOARD_LATE_INIT
 617 int board_late_init(void)
 618 {
 619 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 620         char safe_string[HDR_NAME_LEN + 1];
 621         struct am43xx_board_id header;
 622
 623         if (read_eeprom(&header) < 0)
 624                 puts("Could not get board ID.\n");
 625
 626         /* Now set variables based on the header. */
 627         strncpy(safe_string, (char *)header.name, sizeof(header.name));
 628         safe_string[sizeof(header.name)] = 0;
 629         setenv("board_name", safe_string);
 630
 631         strncpy(safe_string, (char *)header.version, sizeof(header.version));
 632         safe_string[sizeof(header.version)] = 0;
 633         setenv("board_rev", safe_string);
 634 #endif
 635         return 0;
 636 }
 637 #endif
 638
 639 #ifdef CONFIG_DRIVER_TI_CPSW
 640
 641 static void cpsw_control(int enabled)
 642 {
 643         /* Additional controls can be added here */
 644         return;
 645 }
 646
 647 static struct cpsw_slave_data cpsw_slaves[] = {
 648         {
 649                 .slave_reg_ofs  = 0x208,
 650                 .sliver_reg_ofs = 0xd80,
 651                 .phy_addr       = 16,
 652         },
 653         {
 654                 .slave_reg_ofs  = 0x308,
 655                 .sliver_reg_ofs = 0xdc0,
 656                 .phy_addr       = 1,
 657         },
 658 };
 659
 660 static struct cpsw_platform_data cpsw_data = {
 661         .mdio_base              = CPSW_MDIO_BASE,
 662         .cpsw_base              = CPSW_BASE,
 663         .mdio_div               = 0xff,
 664         .channels               = 8,
 665         .cpdma_reg_ofs          = 0x800,
 666         .slaves                 = 1,
 667         .slave_data             = cpsw_slaves,
 668         .ale_reg_ofs            = 0xd00,
 669         .ale_entries            = 1024,
 670         .host_port_reg_ofs      = 0x108,
 671         .hw_stats_reg_ofs       = 0x900,
 672         .bd_ram_ofs             = 0x2000,
 673         .mac_control            = (1 << 5),
 674         .control                = cpsw_control,
 675         .host_port_num          = 0,
 676         .version                = CPSW_CTRL_VERSION_2,
 677 };
 678
 679 int board_eth_init(bd_t *bis)
 680 {
 681         int rv;
 682         uint8_t mac_addr[6];
 683         uint32_t mac_hi, mac_lo;
 684
 685         /* try reading mac address from efuse */
 686         mac_lo = readl(&cdev->macid0l);
 687         mac_hi = readl(&cdev->macid0h);
 688         mac_addr[0] = mac_hi & 0xFF;
 689         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 690         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 691         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 692         mac_addr[4] = mac_lo & 0xFF;
 693         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 694
 695         if (!getenv("ethaddr")) {
 696                 puts("<ethaddr> not set. Validating first E-fuse MAC\n");
 697                 if (is_valid_ether_addr(mac_addr))
 698                         eth_setenv_enetaddr("ethaddr", mac_addr);
 699         }
 700
 701         mac_lo = readl(&cdev->macid1l);
 702         mac_hi = readl(&cdev->macid1h);
 703         mac_addr[0] = mac_hi & 0xFF;
 704         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 705         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 706         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 707         mac_addr[4] = mac_lo & 0xFF;
 708         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 709
 710         if (!getenv("eth1addr")) {
 711                 if (is_valid_ether_addr(mac_addr))
 712                         eth_setenv_enetaddr("eth1addr", mac_addr);
 713         }
 714
 715         if (board_is_eposevm()) {
 716                 writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE, &cdev->miisel);
 717                 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RMII;
 718                 cpsw_slaves[0].phy_addr = 16;
 719         } else if (board_is_sk()) {
 720                 writel(RGMII_MODE_ENABLE, &cdev->miisel);
 721                 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
 722                 cpsw_slaves[0].phy_addr = 4;
 723                 cpsw_slaves[1].phy_addr = 5;
 724         } else if (board_is_idk()) {
 725                 writel(RGMII_MODE_ENABLE, &cdev->miisel);
 726                 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
 727                 cpsw_slaves[0].phy_addr = 0;
 728         } else {
 729                 writel(RGMII_MODE_ENABLE, &cdev->miisel);
 730                 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
 731                 cpsw_slaves[0].phy_addr = 0;
 732         }
 733
 734         rv = cpsw_register(&cpsw_data);
 735         if (rv < 0)
 736                 printf("Error %d registering CPSW switch\n", rv);
 737
 738         return rv;
 739 }
 740 #endif