board/samsung/universal_c210/universal.c

   1 /*
   2  *  Copyright (C) 2010 Samsung Electronics
   3  *  Minkyu Kang <mk7.kang@samsung.com>
   4  *  Kyungmin Park <kyungmin.park@samsung.com>
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #include <common.h>
  10 #include <spi.h>
  11 #include <lcd.h>
  12 #include <asm/io.h>
  13 #include <asm/gpio.h>
  14 #include <asm/arch/adc.h>
  15 #include <asm/arch/gpio.h>
  16 #include <asm/arch/mmc.h>
  17 #include <asm/arch/pinmux.h>
  18 #include <asm/arch/watchdog.h>
  19 #include <libtizen.h>
  20 #include <ld9040.h>
  21 #include <power/pmic.h>
  22 #include <usb/s3c_udc.h>
  23 #include <asm/arch/cpu.h>
  24 #include <power/max8998_pmic.h>
  25
  26 DECLARE_GLOBAL_DATA_PTR;
  27
  28 struct exynos4_gpio_part1 *gpio1;
  29 struct exynos4_gpio_part2 *gpio2;
  30 unsigned int board_rev;
  31
  32 u32 get_board_rev(void)
  33 {
  34         return board_rev;
  35 }
  36
  37 static int get_hwrev(void)
  38 {
  39         return board_rev & 0xFF;
  40 }
  41
  42 static void init_pmic_lcd(void);
  43
  44 int power_init_board(void)
  45 {
  46         int ret;
  47
  48         /*
  49          * For PMIC the I2C bus is named as I2C5, but it is connected
  50          * to logical I2C adapter 0
  51          */
  52         ret = pmic_init(I2C_0);
  53         if (ret)
  54                 return ret;
  55
  56         init_pmic_lcd();
  57
  58         return 0;
  59 }
  60
  61 int dram_init(void)
  62 {
  63         gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1, PHYS_SDRAM_1_SIZE) +
  64                 get_ram_size((long *)PHYS_SDRAM_2, PHYS_SDRAM_2_SIZE);
  65
  66         return 0;
  67 }
  68
  69 void dram_init_banksize(void)
  70 {
  71         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
  72         gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
  73         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
  74         gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
  75 }
  76
  77 static unsigned short get_adc_value(int channel)
  78 {
  79         struct s5p_adc *adc = (struct s5p_adc *)samsung_get_base_adc();
  80         unsigned short ret = 0;
  81         unsigned int reg;
  82         unsigned int loop = 0;
  83
  84         writel(channel & 0xF, &adc->adcmux);
  85         writel((1 << 14) | (49 << 6), &adc->adccon);
  86         writel(1000 & 0xffff, &adc->adcdly);
  87         writel(readl(&adc->adccon) | (1 << 16), &adc->adccon); /* 12 bit */
  88         udelay(10);
  89         writel(readl(&adc->adccon) | (1 << 0), &adc->adccon); /* Enable */
  90         udelay(10);
  91
  92         do {
  93                 udelay(1);
  94                 reg = readl(&adc->adccon);
  95         } while (!(reg & (1 << 15)) && (loop++ < 1000));
  96
  97         ret = readl(&adc->adcdat0) & 0xFFF;
  98
  99         return ret;
 100 }
 101
 102 static int adc_power_control(int on)
 103 {
 104         int ret;
 105         struct pmic *p = pmic_get("MAX8998_PMIC");
 106         if (!p)
 107                 return -ENODEV;
 108
 109         if (pmic_probe(p))
 110                 return -1;
 111
 112         ret = pmic_set_output(p,
 113                               MAX8998_REG_ONOFF1,
 114                               MAX8998_LDO4, !!on);
 115
 116         return ret;
 117 }
 118
 119 static unsigned int get_hw_revision(void)
 120 {
 121         int hwrev, mode0, mode1;
 122
 123         adc_power_control(1);
 124
 125         mode0 = get_adc_value(1);               /* HWREV_MODE0 */
 126         mode1 = get_adc_value(2);               /* HWREV_MODE1 */
 127
 128         /*
 129          * XXX Always set the default hwrev as the latest board
 130          * ADC = (voltage) / 3.3 * 4096
 131          */
 132         hwrev = 3;
 133
 134 #define IS_RANGE(x, min, max)   ((x) > (min) && (x) < (max))
 135         if (IS_RANGE(mode0, 80, 200) && IS_RANGE(mode1, 80, 200))
 136                 hwrev = 0x0;            /* 0.01V        0.01V */
 137         if (IS_RANGE(mode0, 750, 1000) && IS_RANGE(mode1, 80, 200))
 138                 hwrev = 0x1;            /* 610mV        0.01V */
 139         if (IS_RANGE(mode0, 1300, 1700) && IS_RANGE(mode1, 80, 200))
 140                 hwrev = 0x2;            /* 1.16V        0.01V */
 141         if (IS_RANGE(mode0, 2000, 2400) && IS_RANGE(mode1, 80, 200))
 142                 hwrev = 0x3;            /* 1.79V        0.01V */
 143 #undef IS_RANGE
 144
 145         debug("mode0: %d, mode1: %d, hwrev 0x%x\n", mode0, mode1, hwrev);
 146
 147         adc_power_control(0);
 148
 149         return hwrev;
 150 }
 151
 152 static void check_hw_revision(void)
 153 {
 154         int hwrev;
 155
 156         hwrev = get_hw_revision();
 157
 158         board_rev |= hwrev;
 159 }
 160
 161 #ifdef CONFIG_DISPLAY_BOARDINFO
 162 int checkboard(void)
 163 {
 164         puts("Board:\tUniversal C210\n");
 165         return 0;
 166 }
 167 #endif
 168
 169 #ifdef CONFIG_GENERIC_MMC
 170 int board_mmc_init(bd_t *bis)
 171 {
 172         int err;
 173
 174         switch (get_hwrev()) {
 175         case 0:
 176                 /*
 177                  * Set the low to enable LDO_EN
 178                  * But when you use the test board for eMMC booting
 179                  * you should set it HIGH since it removes the inverter
 180                  */
 181                 /* MASSMEMORY_EN: XMDMDATA_6: GPE3[6] */
 182                 s5p_gpio_direction_output(&gpio1->e3, 6, 0);
 183                 break;
 184         default:
 185                 /*
 186                  * Default reset state is High and there's no inverter
 187                  * But set it as HIGH to ensure
 188                  */
 189                 /* MASSMEMORY_EN: XMDMADDR_3: GPE1[3] */
 190                 s5p_gpio_direction_output(&gpio1->e1, 3, 1);
 191                 break;
 192         }
 193
 194         /*
 195          * MMC device init
 196          * mmc0  : eMMC (8-bit buswidth)
 197          * mmc2  : SD card (4-bit buswidth)
 198          */
 199         err = exynos_pinmux_config(PERIPH_ID_SDMMC0, PINMUX_FLAG_8BIT_MODE);
 200         if (err)
 201                 debug("SDMMC0 not configured\n");
 202         else
 203                 err = s5p_mmc_init(0, 8);
 204
 205         /* T-flash detect */
 206         s5p_gpio_cfg_pin(&gpio2->x3, 4, 0xf);
 207         s5p_gpio_set_pull(&gpio2->x3, 4, GPIO_PULL_UP);
 208
 209         /*
 210          * Check the T-flash  detect pin
 211          * GPX3[4] T-flash detect pin
 212          */
 213         if (!s5p_gpio_get_value(&gpio2->x3, 4)) {
 214                 err = exynos_pinmux_config(PERIPH_ID_SDMMC2, PINMUX_FLAG_NONE);
 215                 if (err)
 216                         debug("SDMMC2 not configured\n");
 217                 else
 218                         err = s5p_mmc_init(2, 4);
 219         }
 220
 221         return err;
 222
 223 }
 224 #endif
 225
 226 #ifdef CONFIG_USB_GADGET
 227 static int s5pc210_phy_control(int on)
 228 {
 229         int ret = 0;
 230         struct pmic *p = pmic_get("MAX8998_PMIC");
 231         if (!p)
 232                 return -ENODEV;
 233
 234         if (pmic_probe(p))
 235                 return -1;
 236
 237         if (on) {
 238                 ret |= pmic_set_output(p,
 239                                        MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
 240                                        MAX8998_SAFEOUT1, LDO_ON);
 241                 ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
 242                                       MAX8998_LDO3, LDO_ON);
 243                 ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
 244                                       MAX8998_LDO8, LDO_ON);
 245
 246         } else {
 247                 ret |= pmic_set_output(p, MAX8998_REG_ONOFF2,
 248                                       MAX8998_LDO8, LDO_OFF);
 249                 ret |= pmic_set_output(p, MAX8998_REG_ONOFF1,
 250                                       MAX8998_LDO3, LDO_OFF);
 251                 ret |= pmic_set_output(p,
 252                                        MAX8998_REG_BUCK_ACTIVE_DISCHARGE3,
 253                                        MAX8998_SAFEOUT1, LDO_OFF);
 254         }
 255
 256         if (ret) {
 257                 puts("MAX8998 LDO setting error!\n");
 258                 return -1;
 259         }
 260
 261         return 0;
 262 }
 263
 264 struct s3c_plat_otg_data s5pc210_otg_data = {
 265         .phy_control = s5pc210_phy_control,
 266         .regs_phy = EXYNOS4_USBPHY_BASE,
 267         .regs_otg = EXYNOS4_USBOTG_BASE,
 268         .usb_phy_ctrl = EXYNOS4_USBPHY_CONTROL,
 269         .usb_flags = PHY0_SLEEP,
 270 };
 271 #endif
 272
 273 int board_early_init_f(void)
 274 {
 275         wdt_stop();
 276
 277         return 0;
 278 }
 279
 280 #ifdef CONFIG_SOFT_SPI
 281 static void soft_spi_init(void)
 282 {
 283         gpio_direction_output(CONFIG_SOFT_SPI_GPIO_SCLK,
 284                 CONFIG_SOFT_SPI_MODE & SPI_CPOL);
 285         gpio_direction_output(CONFIG_SOFT_SPI_GPIO_MOSI, 1);
 286         gpio_direction_input(CONFIG_SOFT_SPI_GPIO_MISO);
 287         gpio_direction_output(CONFIG_SOFT_SPI_GPIO_CS,
 288                 !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
 289 }
 290
 291 void spi_cs_activate(struct spi_slave *slave)
 292 {
 293         gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
 294                 !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
 295         SPI_SCL(1);
 296         gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
 297                 CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH);
 298 }
 299
 300 void spi_cs_deactivate(struct spi_slave *slave)
 301 {
 302         gpio_set_value(CONFIG_SOFT_SPI_GPIO_CS,
 303                 !(CONFIG_SOFT_SPI_MODE & SPI_CS_HIGH));
 304 }
 305
 306 int  spi_cs_is_valid(unsigned int bus, unsigned int cs)
 307 {
 308         return bus == 0 && cs == 0;
 309 }
 310
 311 void universal_spi_scl(int bit)
 312 {
 313         gpio_set_value(CONFIG_SOFT_SPI_GPIO_SCLK, bit);
 314 }
 315
 316 void universal_spi_sda(int bit)
 317 {
 318         gpio_set_value(CONFIG_SOFT_SPI_GPIO_MOSI, bit);
 319 }
 320
 321 int universal_spi_read(void)
 322 {
 323         return gpio_get_value(CONFIG_SOFT_SPI_GPIO_MISO);
 324 }
 325 #endif
 326
 327 static void init_pmic_lcd(void)
 328 {
 329         unsigned char val;
 330         int ret = 0;
 331
 332         struct pmic *p = pmic_get("MAX8998_PMIC");
 333
 334         if (!p)
 335                 return;
 336
 337         if (pmic_probe(p))
 338                 return;
 339
 340         /* LDO7 1.8V */
 341         val = 0x02; /* (1800 - 1600) / 100; */
 342         ret |= pmic_reg_write(p,  MAX8998_REG_LDO7, val);
 343
 344         /* LDO17 3.0V */
 345         val = 0xe; /* (3000 - 1600) / 100; */
 346         ret |= pmic_reg_write(p,  MAX8998_REG_LDO17, val);
 347
 348         /* Disable unneeded regulators */
 349         /*
 350          * ONOFF1
 351          * Buck1 ON, Buck2 OFF, Buck3 ON, Buck4 ON
 352          * LDO2 ON, LDO3 OFF, LDO4 OFF, LDO5 ON
 353          */
 354         val = 0xB9;
 355         ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF1, val);
 356
 357         /* ONOFF2
 358          * LDO6 OFF, LDO7 ON, LDO8 OFF, LDO9 ON,
 359          * LDO10 OFF, LDO11 OFF, LDO12 OFF, LDO13 OFF
 360          */
 361         val = 0x50;
 362         ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF2, val);
 363
 364         /* ONOFF3
 365          * LDO14 OFF, LDO15 OFF, LGO16 OFF, LDO17 OFF
 366          * EPWRHOLD OFF, EBATTMON OFF, ELBCNFG2 OFF, ELBCNFG1 OFF
 367          */
 368         val = 0x00;
 369         ret |= pmic_reg_write(p,  MAX8998_REG_ONOFF3, val);
 370
 371         if (ret)
 372                 puts("LCD pmic initialisation error!\n");
 373 }
 374
 375 void exynos_cfg_lcd_gpio(void)
 376 {
 377         unsigned int i, f3_end = 4;
 378
 379         for (i = 0; i < 8; i++) {
 380                 /* set GPF0,1,2[0:7] for RGB Interface and Data lines (32bit) */
 381                 s5p_gpio_cfg_pin(&gpio1->f0, i, GPIO_FUNC(2));
 382                 s5p_gpio_cfg_pin(&gpio1->f1, i, GPIO_FUNC(2));
 383                 s5p_gpio_cfg_pin(&gpio1->f2, i, GPIO_FUNC(2));
 384                 /* pull-up/down disable */
 385                 s5p_gpio_set_pull(&gpio1->f0, i, GPIO_PULL_NONE);
 386                 s5p_gpio_set_pull(&gpio1->f1, i, GPIO_PULL_NONE);
 387                 s5p_gpio_set_pull(&gpio1->f2, i, GPIO_PULL_NONE);
 388
 389                 /* drive strength to max (24bit) */
 390                 s5p_gpio_set_drv(&gpio1->f0, i, GPIO_DRV_4X);
 391                 s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
 392                 s5p_gpio_set_drv(&gpio1->f1, i, GPIO_DRV_4X);
 393                 s5p_gpio_set_rate(&gpio1->f1, i, GPIO_DRV_SLOW);
 394                 s5p_gpio_set_drv(&gpio1->f2, i, GPIO_DRV_4X);
 395                 s5p_gpio_set_rate(&gpio1->f0, i, GPIO_DRV_SLOW);
 396         }
 397
 398         for (i = 0; i < f3_end; i++) {
 399                 /* set GPF3[0:3] for RGB Interface and Data lines (32bit) */
 400                 s5p_gpio_cfg_pin(&gpio1->f3, i, GPIO_FUNC(2));
 401                 /* pull-up/down disable */
 402                 s5p_gpio_set_pull(&gpio1->f3, i, GPIO_PULL_NONE);
 403                 /* drive strength to max (24bit) */
 404                 s5p_gpio_set_drv(&gpio1->f3, i, GPIO_DRV_4X);
 405                 s5p_gpio_set_rate(&gpio1->f3, i, GPIO_DRV_SLOW);
 406         }
 407
 408         /* gpio pad configuration for LCD reset. */
 409         s5p_gpio_cfg_pin(&gpio2->y4, 5, GPIO_OUTPUT);
 410
 411         spi_init();
 412 }
 413
 414 void exynos_reset_lcd(void)
 415 {
 416         s5p_gpio_set_value(&gpio2->y4, 5, 1);
 417         udelay(10000);
 418         s5p_gpio_set_value(&gpio2->y4, 5, 0);
 419         udelay(10000);
 420         s5p_gpio_set_value(&gpio2->y4, 5, 1);
 421         udelay(100);
 422 }
 423
 424 void exynos_lcd_power_on(void)
 425 {
 426         struct pmic *p = pmic_get("MAX8998_PMIC");
 427
 428         if (!p)
 429                 return;
 430
 431         if (pmic_probe(p))
 432                 return;
 433
 434         pmic_set_output(p, MAX8998_REG_ONOFF3, MAX8998_LDO17, LDO_ON);
 435         pmic_set_output(p, MAX8998_REG_ONOFF2, MAX8998_LDO7, LDO_ON);
 436 }
 437
 438 vidinfo_t panel_info = {
 439         .vl_freq        = 60,
 440         .vl_col         = 480,
 441         .vl_row         = 800,
 442         .vl_width       = 480,
 443         .vl_height      = 800,
 444         .vl_clkp        = CONFIG_SYS_HIGH,
 445         .vl_hsp         = CONFIG_SYS_HIGH,
 446         .vl_vsp         = CONFIG_SYS_HIGH,
 447         .vl_dp          = CONFIG_SYS_HIGH,
 448
 449         .vl_bpix        = 5,    /* Bits per pixel */
 450
 451         /* LD9040 LCD Panel */
 452         .vl_hspw        = 2,
 453         .vl_hbpd        = 16,
 454         .vl_hfpd        = 16,
 455
 456         .vl_vspw        = 2,
 457         .vl_vbpd        = 8,
 458         .vl_vfpd        = 8,
 459         .vl_cmd_allow_len = 0xf,
 460
 461         .win_id         = 0,
 462         .dual_lcd_enabled = 0,
 463
 464         .init_delay     = 0,
 465         .power_on_delay = 10000,
 466         .reset_delay    = 10000,
 467         .interface_mode = FIMD_RGB_INTERFACE,
 468         .mipi_enabled   = 0,
 469 };
 470
 471 void exynos_cfg_ldo(void)
 472 {
 473         ld9040_cfg_ldo();
 474 }
 475
 476 void exynos_enable_ldo(unsigned int onoff)
 477 {
 478         ld9040_enable_ldo(onoff);
 479 }
 480
 481 void init_panel_info(vidinfo_t *vid)
 482 {
 483         vid->logo_on    = 1;
 484         vid->resolution = HD_RESOLUTION;
 485         vid->rgb_mode   = MODE_RGB_P;
 486
 487 #ifdef CONFIG_TIZEN
 488         get_tizen_logo_info(vid);
 489 #endif
 490
 491         /* for LD9040. */
 492         vid->pclk_name = 1;     /* MPLL */
 493         vid->sclk_div = 1;
 494
 495         setenv("lcdinfo", "lcd=ld9040");
 496 }
 497
 498 int board_init(void)
 499 {
 500         gpio1 = (struct exynos4_gpio_part1 *) EXYNOS4_GPIO_PART1_BASE;
 501         gpio2 = (struct exynos4_gpio_part2 *) EXYNOS4_GPIO_PART2_BASE;
 502
 503         gd->bd->bi_arch_number = MACH_TYPE_UNIVERSAL_C210;
 504         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 505
 506 #ifdef CONFIG_SOFT_SPI
 507         soft_spi_init();
 508 #endif
 509         check_hw_revision();
 510         printf("HW Revision:\t0x%x\n", board_rev);
 511
 512         return 0;
 513 }
 514
 515 #ifdef CONFIG_MISC_INIT_R
 516 int misc_init_r(void)
 517 {
 518 #ifdef CONFIG_CMD_BMP
 519         if (panel_info.logo_on)
 520                 draw_logo();
 521 #endif
 522         return 0;
 523 }
 524 #endif