board/karo/tx6/tx6ul.c

   1 /*
   2  * Copyright (C) 2015 Lothar Waßmann <LW@KARO-electronics.de>
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  *
   6  */
   7 #include <common.h>
   8 #include <errno.h>
   9 #include <libfdt.h>
  10 #include <fdt_support.h>
  11 #include <lcd.h>
  12 #include <netdev.h>
  13 #include <mmc.h>
  14 #include <fsl_esdhc.h>
  15 #include <video_fb.h>
  16 #include <ipu.h>
  17 #include <mxcfb.h>
  18 #include <i2c.h>
  19 #include <linux/fb.h>
  20 #include <asm/io.h>
  21 #include <asm/gpio.h>
  22 #include <asm/arch/mx6-pins.h>
  23 #include <asm/arch/clock.h>
  24 #include <asm/arch/hab.h>
  25 #include <asm/arch/imx-regs.h>
  26 #include <asm/arch/crm_regs.h>
  27 #include <asm/arch/sys_proto.h>
  28
  29 #include "../common/karo.h"
  30 #include "pmic.h"
  31
  32 #define __data __attribute__((section(".data")))
  33
  34 #define TX6UL_FEC_RST_GPIO              IMX_GPIO_NR(5, 6)
  35 #define TX6UL_FEC_PWR_GPIO              IMX_GPIO_NR(5, 7)
  36 #define TX6UL_FEC_INT_GPIO              IMX_GPIO_NR(5, 5)
  37
  38 #define TX6UL_FEC2_RST_GPIO             IMX_GPIO_NR(4, 28)
  39 #define TX6UL_FEC2_INT_GPIO             IMX_GPIO_NR(4, 27)
  40
  41 #define TX6UL_LED_GPIO                  IMX_GPIO_NR(5, 9)
  42
  43 #define TX6UL_LCD_PWR_GPIO              IMX_GPIO_NR(5, 4)
  44 #define TX6UL_LCD_RST_GPIO              IMX_GPIO_NR(3, 4)
  45 #define TX6UL_LCD_BACKLIGHT_GPIO        IMX_GPIO_NR(4, 16)
  46
  47 #define TX6UL_I2C1_SCL_GPIO             CONFIG_SOFT_I2C_GPIO_SCL
  48 #define TX6UL_I2C1_SDA_GPIO             CONFIG_SOFT_I2C_GPIO_SDA
  49
  50 #define TX6UL_SD1_CD_GPIO               IMX_GPIO_NR(4, 14)
  51
  52 #ifdef CONFIG_MX6_TEMPERATURE_MIN
  53 #define TEMPERATURE_MIN                 CONFIG_MX6_TEMPERATURE_MIN
  54 #else
  55 #define TEMPERATURE_MIN                 (-40)
  56 #endif
  57 #ifdef CONFIG_MX6_TEMPERATURE_HOT
  58 #define TEMPERATURE_HOT                 CONFIG_MX6_TEMPERATURE_HOT
  59 #else
  60 #define TEMPERATURE_HOT                 80
  61 #endif
  62
  63 DECLARE_GLOBAL_DATA_PTR;
  64
  65 #define MUX_CFG_SION                    IOMUX_PAD(0, 0, IOMUX_CONFIG_SION, 0, 0, 0)
  66
  67 char __uboot_img_end[0] __attribute__((section(".__uboot_img_end")));
  68 #ifdef CONFIG_SECURE_BOOT
  69 char __csf_data[0] __attribute__((section(".__csf_data")));
  70 #endif
  71
  72 static const iomux_v3_cfg_t const tx6ul_pads[] = {
  73         /* UART pads */
  74 #if CONFIG_MXC_UART_BASE == UART1_BASE
  75         MX6_PAD_UART1_TX_DATA__UART1_DCE_TX,
  76         MX6_PAD_UART1_RX_DATA__UART1_DCE_RX,
  77         MX6_PAD_UART1_RTS_B__UART1_DCE_RTS,
  78         MX6_PAD_UART1_CTS_B__UART1_DCE_CTS,
  79 #endif
  80 #if CONFIG_MXC_UART_BASE == UART2_BASE
  81         MX6_PAD_UART2_TX_DATA__UART2_DCE_TX,
  82         MX6_PAD_UART2_RX_DATA__UART2_DCE_RX,
  83         MX6_PAD_UART3_RX_DATA__UART2_DCE_RTS,
  84         MX6_PAD_UART3_TX_DATA__UART2_DCE_CTS,
  85 #endif
  86 #if CONFIG_MXC_UART_BASE == UART5_BASE
  87         MX6_PAD_GPIO1_IO04__UART5_DCE_TX,
  88         MX6_PAD_GPIO1_IO05__UART5_DCE_RX,
  89         MX6_PAD_GPIO1_IO08__UART5_DCE_RTS,
  90         MX6_PAD_GPIO1_IO09__UART5_DCE_CTS,
  91 #endif
  92         /* internal I2C */
  93         MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 | MUX_CFG_SION |
  94                         MUX_PAD_CTRL(PAD_CTL_DSE_240ohm), /* I2C SCL */
  95         MX6_PAD_SNVS_TAMPER0__GPIO5_IO00 | MUX_CFG_SION |
  96                         MUX_PAD_CTRL(PAD_CTL_DSE_240ohm | PAD_CTL_HYS |
  97                         PAD_CTL_ODE), /* I2C SDA */
  98
  99         /* FEC PHY GPIO functions */
 100         MX6_PAD_SNVS_TAMPER7__GPIO5_IO07 | MUX_CFG_SION, /* PHY POWER */
 101         MX6_PAD_SNVS_TAMPER6__GPIO5_IO06 | MUX_CFG_SION, /* PHY RESET */
 102         MX6_PAD_SNVS_TAMPER5__GPIO5_IO05 | MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |
 103                                                         PAD_CTL_DSE_40ohm), /* PHY INT */
 104 };
 105
 106 #define TX6_ENET_PAD_CTRL       (PAD_CTL_SPEED_HIGH |   \
 107                                 PAD_CTL_DSE_48ohm |     \
 108                                 PAD_CTL_PUS_100K_UP |   \
 109                                 PAD_CTL_SRE_FAST)
 110 #define TX6_GPIO_OUT_PAD_CTRL   (PAD_CTL_SPEED_LOW |    \
 111                                 PAD_CTL_DSE_60ohm |     \
 112                                 PAD_CTL_SRE_SLOW)
 113 #define TX6_GPIO_IN_PAD_CTRL    (PAD_CTL_SPEED_LOW |    \
 114                                 PAD_CTL_PUS_47K_UP)
 115
 116 static const iomux_v3_cfg_t const tx6ul_enet1_pads[] = {
 117         /* FEC functions */
 118         MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(PAD_CTL_DSE_48ohm |
 119                                 PAD_CTL_SPEED_MED),
 120         MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |
 121                                 PAD_CTL_DSE_48ohm |
 122                                 PAD_CTL_SPEED_MED),
 123         MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_CFG_SION |
 124                                 MUX_PAD_CTRL(PAD_CTL_SPEED_MED |
 125                                 PAD_CTL_DSE_40ohm |
 126                                 PAD_CTL_SRE_FAST),
 127         MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 128         MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 129         MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 130         MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 131         MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 132         MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 133         MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 134 };
 135
 136 static const iomux_v3_cfg_t const tx6ul_enet2_pads[] = {
 137         MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_CFG_SION |
 138                                 MUX_PAD_CTRL(PAD_CTL_SPEED_HIGH |
 139                                 PAD_CTL_DSE_48ohm |
 140                                 PAD_CTL_SRE_FAST),
 141         MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 142         MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 143         MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 144         MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 145         MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 146         MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 147         MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | MUX_PAD_CTRL(TX6_ENET_PAD_CTRL),
 148 };
 149
 150 #define TX6_I2C_PAD_CTRL        (PAD_CTL_PUS_22K_UP |   \
 151                                 PAD_CTL_SPEED_MED |     \
 152                                 PAD_CTL_DSE_34ohm |     \
 153                                 PAD_CTL_SRE_FAST)
 154
 155 static const iomux_v3_cfg_t const tx6_i2c_gpio_pads[] = {
 156         /* internal I2C */
 157         MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 | MUX_CFG_SION |
 158                         MUX_PAD_CTRL(TX6_I2C_PAD_CTRL),
 159         MX6_PAD_SNVS_TAMPER0__GPIO5_IO00 | MUX_CFG_SION |
 160                         MUX_PAD_CTRL(TX6_I2C_PAD_CTRL),
 161 };
 162
 163 static const struct gpio const tx6ul_gpios[] = {
 164         /* These two entries are used to forcefully reinitialize the I2C bus */
 165         { TX6UL_I2C1_SCL_GPIO, GPIOFLAG_INPUT, "I2C1 SCL", },
 166         { TX6UL_I2C1_SDA_GPIO, GPIOFLAG_INPUT, "I2C1 SDA", },
 167
 168         { TX6UL_FEC_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
 169         { TX6UL_FEC_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC PHY RESET", },
 170         { TX6UL_FEC_INT_GPIO, GPIOFLAG_INPUT, "FEC PHY INT", },
 171 };
 172
 173 static const struct gpio const tx6ul_fec2_gpios[] = {
 174         { TX6UL_FEC2_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC2 PHY RESET", },
 175         { TX6UL_FEC2_INT_GPIO, GPIOFLAG_INPUT, "FEC2 PHY INT", },
 176 };
 177
 178 #define GPIO_DR 0
 179 #define GPIO_DIR 4
 180 #define GPIO_PSR 8
 181
 182 /* run with default environment */
 183 static void tx6_i2c_recover(void)
 184 {
 185         int i;
 186         int bad = 0;
 187 #define SCL_BIT         (1 << (TX6UL_I2C1_SCL_GPIO % 32))
 188 #define SDA_BIT         (1 << (TX6UL_I2C1_SDA_GPIO % 32))
 189 #define I2C_GPIO_BASE   (GPIO1_BASE_ADDR + TX6UL_I2C1_SCL_GPIO / 32 * 0x4000)
 190
 191         if ((readl(I2C_GPIO_BASE + GPIO_PSR) &
 192                         (SCL_BIT | SDA_BIT)) == (SCL_BIT | SDA_BIT))
 193                 return;
 194
 195         debug("Clearing I2C bus\n");
 196         if (!(readl(I2C_GPIO_BASE + GPIO_PSR) & SCL_BIT)) {
 197                 printf("I2C SCL stuck LOW\n");
 198                 bad++;
 199
 200                 writel(readl(I2C_GPIO_BASE + GPIO_DR) | SCL_BIT,
 201                         I2C_GPIO_BASE + GPIO_DR);
 202                 writel(readl(I2C_GPIO_BASE + GPIO_DIR) | SCL_BIT,
 203                         I2C_GPIO_BASE + GPIO_DIR);
 204         }
 205         if (!(readl(I2C_GPIO_BASE + GPIO_PSR) & SDA_BIT)) {
 206                 printf("I2C SDA stuck LOW\n");
 207                 bad++;
 208
 209                 writel(readl(I2C_GPIO_BASE + GPIO_DIR) & ~SDA_BIT,
 210                         I2C_GPIO_BASE + GPIO_DIR);
 211                 writel(readl(I2C_GPIO_BASE + GPIO_DR) | SCL_BIT,
 212                         I2C_GPIO_BASE + GPIO_DR);
 213                 writel(readl(I2C_GPIO_BASE + GPIO_DIR) | SCL_BIT,
 214                         I2C_GPIO_BASE + GPIO_DIR);
 215
 216                 imx_iomux_v3_setup_multiple_pads(tx6_i2c_gpio_pads,
 217                                                 ARRAY_SIZE(tx6_i2c_gpio_pads));
 218                 udelay(10);
 219
 220                 for (i = 0; i < 18; i++) {
 221                         u32 reg = readl(I2C_GPIO_BASE + GPIO_DR) ^ SCL_BIT;
 222
 223                         debug("%sing SCL\n", (reg & SCL_BIT) ? "Sett" : "Clear");
 224                         writel(reg, I2C_GPIO_BASE + GPIO_DR);
 225                         udelay(10);
 226                         if (reg & SCL_BIT &&
 227                                 readl(I2C_GPIO_BASE + GPIO_PSR) & SDA_BIT)
 228                                 break;
 229                 }
 230         }
 231         if (bad) {
 232                 u32 reg = readl(I2C_GPIO_BASE + GPIO_PSR);
 233
 234                 if ((reg & (SCL_BIT | SDA_BIT)) == (SCL_BIT | SDA_BIT)) {
 235                         printf("I2C bus recovery succeeded\n");
 236                 } else {
 237                         printf("I2C bus recovery FAILED: %08x:%08x\n", reg,
 238                                 SCL_BIT | SDA_BIT);
 239                 }
 240         }
 241 }
 242
 243 /* placed in section '.data' to prevent overwriting relocation info
 244  * overlayed with bss
 245  */
 246 static u32 wrsr __data;
 247
 248 #define WRSR_POR                        (1 << 4)
 249 #define WRSR_TOUT                       (1 << 1)
 250 #define WRSR_SFTW                       (1 << 0)
 251
 252 static void print_reset_cause(void)
 253 {
 254         struct src *src_regs = (struct src *)SRC_BASE_ADDR;
 255         void __iomem *wdt_base = (void __iomem *)WDOG1_BASE_ADDR;
 256         u32 srsr;
 257         char *dlm = "";
 258
 259         printf("Reset cause: ");
 260
 261         srsr = readl(&src_regs->srsr);
 262         wrsr = readw(wdt_base + 4);
 263
 264         if (wrsr & WRSR_POR) {
 265                 printf("%sPOR", dlm);
 266                 dlm = " | ";
 267         }
 268         if (srsr & 0x00004) {
 269                 printf("%sCSU", dlm);
 270                 dlm = " | ";
 271         }
 272         if (srsr & 0x00008) {
 273                 printf("%sIPP USER", dlm);
 274                 dlm = " | ";
 275         }
 276         if (srsr & 0x00010) {
 277                 if (wrsr & WRSR_SFTW) {
 278                         printf("%sSOFT", dlm);
 279                         dlm = " | ";
 280                 }
 281                 if (wrsr & WRSR_TOUT) {
 282                         printf("%sWDOG", dlm);
 283                         dlm = " | ";
 284                 }
 285         }
 286         if (srsr & 0x00020) {
 287                 printf("%sJTAG HIGH-Z", dlm);
 288                 dlm = " | ";
 289         }
 290         if (srsr & 0x00040) {
 291                 printf("%sJTAG SW", dlm);
 292                 dlm = " | ";
 293         }
 294         if (srsr & 0x10000) {
 295                 printf("%sWARM BOOT", dlm);
 296                 dlm = " | ";
 297         }
 298         if (dlm[0] == '\0')
 299                 printf("unknown");
 300
 301         printf("\n");
 302 }
 303
 304 #ifdef CONFIG_IMX6_THERMAL
 305 #include <thermal.h>
 306 #include <imx_thermal.h>
 307 #include <fuse.h>
 308
 309 static void print_temperature(void)
 310 {
 311         struct udevice *thermal_dev;
 312         int cpu_tmp, minc, maxc, ret;
 313         char const *grade_str;
 314         static u32 __data thermal_calib;
 315
 316         puts("Temperature: ");
 317         switch (get_cpu_temp_grade(&minc, &maxc)) {
 318         case TEMP_AUTOMOTIVE:
 319                 grade_str = "Automotive";
 320                 break;
 321         case TEMP_INDUSTRIAL:
 322                 grade_str = "Industrial";
 323                 break;
 324         case TEMP_EXTCOMMERCIAL:
 325                 grade_str = "Extended Commercial";
 326                 break;
 327         default:
 328                 grade_str = "Commercial";
 329         }
 330         printf("%s grade (%dC to %dC)", grade_str, minc, maxc);
 331         ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
 332         if (ret == 0) {
 333                 ret = thermal_get_temp(thermal_dev, &cpu_tmp);
 334
 335                 if (ret == 0)
 336                         printf(" at %dC", cpu_tmp);
 337                 else
 338                         puts(" - failed to read sensor data");
 339         } else {
 340                 puts(" - no sensor device found");
 341         }
 342
 343         if (fuse_read(1, 6, &thermal_calib) == 0) {
 344                 printf(" - calibration data 0x%08x\n", thermal_calib);
 345         } else {
 346                 puts(" - Failed to read thermal calib fuse\n");
 347         }
 348 }
 349 #else
 350 static inline void print_temperature(void)
 351 {
 352 }
 353 #endif
 354
 355 int checkboard(void)
 356 {
 357         u32 cpurev = get_cpu_rev();
 358         char *cpu_str = "?";
 359
 360         switch ((cpurev >> 12) & 0xff) {
 361         case MXC_CPU_MX6SL:
 362                 cpu_str = "SL";
 363                 break;
 364         case MXC_CPU_MX6DL:
 365                 cpu_str = "DL";
 366                 break;
 367         case MXC_CPU_MX6SOLO:
 368                 cpu_str = "SOLO";
 369                 break;
 370         case MXC_CPU_MX6Q:
 371                 cpu_str = "Q";
 372                 break;
 373         case MXC_CPU_MX6UL:
 374                 cpu_str = "UL";
 375                 break;
 376         }
 377
 378         printf("CPU:   Freescale i.MX6%s rev%d.%d at %d MHz\n",
 379                 cpu_str,
 380                 (cpurev & 0x000F0) >> 4,
 381                 (cpurev & 0x0000F) >> 0,
 382                 mxc_get_clock(MXC_ARM_CLK) / 1000000);
 383
 384         print_temperature();
 385         print_reset_cause();
 386 #ifdef CONFIG_MX6_TEMPERATURE_HOT
 387         check_cpu_temperature(1);
 388 #endif
 389         tx6_i2c_recover();
 390         return 0;
 391 }
 392
 393 /* serial port not initialized at this point */
 394 int board_early_init_f(void)
 395 {
 396         return 0;
 397 }
 398
 399 #ifndef CONFIG_MX6_TEMPERATURE_HOT
 400 static bool tx6_temp_check_enabled = true;
 401 #else
 402 #define tx6_temp_check_enabled  0
 403 #endif
 404
 405 static inline u8 tx6ul_mem_suffix(void)
 406 {
 407 #ifdef CONFIG_TX6_NAND
 408         return '0';
 409 #else
 410         return '1';
 411 #endif
 412 }
 413
 414 /* PMIC settings */
 415 #define VDD_RTC_VAL             rn5t_mV_to_regval_rtc(3000)
 416 #define VDD_CORE_VAL            rn5t_mV_to_regval(1300)         /* DCDC1 */
 417 #define VDD_CORE_VAL_LP         rn5t_mV_to_regval(900)
 418 #define VDD_DDR_VAL             rn5t_mV_to_regval(1350)         /* DCDC3 */
 419 #define VDD_DDR_VAL_LP          rn5t_mV_to_regval(1350)
 420 #define VDD_HIGH_VAL            rn5t_mV_to_regval(3300)         /* DCDC4 */
 421 #define VDD_HIGH_VAL_LP         rn5t_mV_to_regval(3300)
 422 #define VDD_CSI_VAL             rn5t_mV_to_regval2(3300)        /* LDO4 */
 423 #define VDD_CSI_VAL_LP          rn5t_mV_to_regval2(3300)
 424
 425 static struct pmic_regs rn5t567_regs[] = {
 426         { RN5T567_NOETIMSET, NOETIMSET_DIS_OFF_NOE_TIM | 0x5, },
 427         { RN5T567_DC2CTL, DC2_DC2DIS, },
 428         { RN5T567_DC1DAC, VDD_CORE_VAL, },
 429         { RN5T567_DC3DAC, VDD_DDR_VAL, },
 430         { RN5T567_DC4DAC, VDD_HIGH_VAL, },
 431         { RN5T567_DC1DAC_SLP, VDD_CORE_VAL_LP, },
 432         { RN5T567_DC3DAC_SLP, VDD_DDR_VAL_LP, },
 433         { RN5T567_DC4DAC_SLP, VDD_HIGH_VAL_LP, },
 434         { RN5T567_LDOEN1, 0x01f, ~0x1f, },
 435         { RN5T567_LDOEN2, 0x10, ~0x30, },
 436         { RN5T567_LDODIS, 0x00, },
 437         { RN5T567_LDO4DAC, VDD_CSI_VAL, },
 438         { RN5T567_LDORTC1DAC, VDD_RTC_VAL, },
 439         { RN5T567_LDORTC1_SLOT, 0x0f, ~0x3f, },
 440 };
 441
 442 static int pmic_addr __maybe_unused = 0x33;
 443
 444 int board_init(void)
 445 {
 446         int ret;
 447
 448         debug("%s@%d: \n", __func__, __LINE__);
 449
 450         printf("Board: Ka-Ro TXUL-001%c\n",
 451                 tx6ul_mem_suffix());
 452
 453         get_hab_status();
 454
 455         ret = gpio_request_array(tx6ul_gpios, ARRAY_SIZE(tx6ul_gpios));
 456         if (ret < 0) {
 457                 printf("Failed to request tx6ul_gpios: %d\n", ret);
 458         }
 459         imx_iomux_v3_setup_multiple_pads(tx6ul_pads, ARRAY_SIZE(tx6ul_pads));
 460
 461         /* Address of boot parameters */
 462         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x1000;
 463         gd->bd->bi_arch_number = -1;
 464
 465         if (ctrlc() || (wrsr & WRSR_TOUT)) {
 466                 if (wrsr & WRSR_TOUT)
 467                         printf("WDOG RESET detected; Skipping PMIC setup\n");
 468                 else
 469                         printf("<CTRL-C> detected; safeboot enabled\n");
 470 #ifndef CONFIG_MX6_TEMPERATURE_HOT
 471                 tx6_temp_check_enabled = false;
 472 #endif
 473                 return 0;
 474         }
 475
 476         ret = tx6_pmic_init(pmic_addr, rn5t567_regs, ARRAY_SIZE(rn5t567_regs));
 477         if (ret) {
 478                 printf("Failed to setup PMIC voltages: %d\n", ret);
 479                 hang();
 480         }
 481         return 0;
 482 }
 483
 484 int dram_init(void)
 485 {
 486         debug("%s@%d: \n", __func__, __LINE__);
 487
 488         /* dram_init must store complete ramsize in gd->ram_size */
 489         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 490                                 PHYS_SDRAM_1_SIZE * CONFIG_NR_DRAM_BANKS);
 491         return 0;
 492 }
 493
 494 void dram_init_banksize(void)
 495 {
 496         debug("%s@%d: \n", __func__, __LINE__);
 497
 498         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 499         gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
 500                         PHYS_SDRAM_1_SIZE);
 501 #if CONFIG_NR_DRAM_BANKS > 1
 502         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 503         gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2,
 504                         PHYS_SDRAM_2_SIZE);
 505 #endif
 506 }
 507
 508 #ifdef  CONFIG_FSL_ESDHC
 509 #define TX6_SD_PAD_CTRL         (PAD_CTL_PUS_47K_UP |   \
 510                                 PAD_CTL_SPEED_MED |     \
 511                                 PAD_CTL_DSE_40ohm |     \
 512                                 PAD_CTL_SRE_FAST)
 513
 514 static const iomux_v3_cfg_t mmc0_pads[] = {
 515         MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 516         MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 517         MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 518         MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 519         MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 520         MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 521         /* SD1 CD */
 522         MX6_PAD_NAND_CE1_B__GPIO4_IO14 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 523 };
 524
 525 #ifdef CONFIG_TX6_EMMC
 526 static const iomux_v3_cfg_t mmc1_pads[] = {
 527         MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 528         MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 529         MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 530         MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 531         MX6_PAD_NAND_DATA02__USDHC2_DATA2 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 532         MX6_PAD_NAND_DATA03__USDHC2_DATA3 | MUX_PAD_CTRL(TX6_SD_PAD_CTRL),
 533         /* eMMC RESET */
 534         MX6_PAD_NAND_ALE__USDHC2_RESET_B | MUX_PAD_CTRL(PAD_CTL_PUS_47K_UP |
 535                                                 PAD_CTL_DSE_40ohm),
 536 };
 537 #endif
 538
 539 static struct tx6_esdhc_cfg {
 540         const iomux_v3_cfg_t *pads;
 541         int num_pads;
 542         enum mxc_clock clkid;
 543         struct fsl_esdhc_cfg cfg;
 544         int cd_gpio;
 545 } tx6ul_esdhc_cfg[] = {
 546 #ifdef CONFIG_TX6_EMMC
 547         {
 548                 .pads = mmc1_pads,
 549                 .num_pads = ARRAY_SIZE(mmc1_pads),
 550                 .clkid = MXC_ESDHC2_CLK,
 551                 .cfg = {
 552                         .esdhc_base = (void __iomem *)USDHC2_BASE_ADDR,
 553                         .max_bus_width = 4,
 554                 },
 555                 .cd_gpio = -EINVAL,
 556         },
 557 #endif
 558         {
 559                 .pads = mmc0_pads,
 560                 .num_pads = ARRAY_SIZE(mmc0_pads),
 561                 .clkid = MXC_ESDHC_CLK,
 562                 .cfg = {
 563                         .esdhc_base = (void __iomem *)USDHC1_BASE_ADDR,
 564                         .max_bus_width = 4,
 565                 },
 566                 .cd_gpio = TX6UL_SD1_CD_GPIO,
 567         },
 568 };
 569
 570 static inline struct tx6_esdhc_cfg *to_tx6_esdhc_cfg(struct fsl_esdhc_cfg *cfg)
 571 {
 572         return container_of(cfg, struct tx6_esdhc_cfg, cfg);
 573 }
 574
 575 int board_mmc_getcd(struct mmc *mmc)
 576 {
 577         struct tx6_esdhc_cfg *cfg = to_tx6_esdhc_cfg(mmc->priv);
 578
 579         if (cfg->cd_gpio < 0)
 580                 return 1;
 581
 582         debug("SD card %d is %spresent (GPIO %d)\n",
 583                 cfg - tx6ul_esdhc_cfg,
 584                 gpio_get_value(cfg->cd_gpio) ? "NOT " : "",
 585                 cfg->cd_gpio);
 586         return !gpio_get_value(cfg->cd_gpio);
 587 }
 588
 589 int board_mmc_init(bd_t *bis)
 590 {
 591         int i;
 592
 593         debug("%s@%d: \n", __func__, __LINE__);
 594
 595 #ifndef CONFIG_ENV_IS_IN_MMC
 596         if (!(gd->flags & GD_FLG_ENV_READY)) {
 597                 printf("deferred ...");
 598                 return 0;
 599         }
 600 #endif
 601         for (i = 0; i < ARRAY_SIZE(tx6ul_esdhc_cfg); i++) {
 602                 struct mmc *mmc;
 603                 struct tx6_esdhc_cfg *cfg = &tx6ul_esdhc_cfg[i];
 604                 int ret;
 605
 606                 cfg->cfg.sdhc_clk = mxc_get_clock(cfg->clkid);
 607                 imx_iomux_v3_setup_multiple_pads(cfg->pads, cfg->num_pads);
 608
 609                 if (cfg->cd_gpio >= 0) {
 610                         ret = gpio_request_one(cfg->cd_gpio,
 611                                         GPIOFLAG_INPUT, "MMC CD");
 612                         if (ret) {
 613                                 printf("Error %d requesting GPIO%d_%d\n",
 614                                         ret, cfg->cd_gpio / 32, cfg->cd_gpio % 32);
 615                                 continue;
 616                         }
 617                 }
 618
 619                 debug("%s: Initializing MMC slot %d\n", __func__, i);
 620                 fsl_esdhc_initialize(bis, &cfg->cfg);
 621
 622                 mmc = find_mmc_device(i);
 623                 if (mmc == NULL)
 624                         continue;
 625                 if (board_mmc_getcd(mmc))
 626                         mmc_init(mmc);
 627         }
 628         return 0;
 629 }
 630 #endif /* CONFIG_CMD_MMC */
 631
 632 enum {
 633         LED_STATE_INIT = -1,
 634         LED_STATE_OFF,
 635         LED_STATE_ON,
 636         LED_STATE_ERR,
 637 };
 638
 639 static inline int calc_blink_rate(void)
 640 {
 641         if (!tx6_temp_check_enabled)
 642                 return CONFIG_SYS_HZ;
 643
 644         return CONFIG_SYS_HZ + CONFIG_SYS_HZ / 10 -
 645                 (check_cpu_temperature(0) - TEMPERATURE_MIN) * CONFIG_SYS_HZ /
 646                 (TEMPERATURE_HOT - TEMPERATURE_MIN);
 647 }
 648
 649 void show_activity(int arg)
 650 {
 651         static int led_state = LED_STATE_INIT;
 652         static int blink_rate;
 653         static ulong last;
 654         int ret;
 655
 656         switch (led_state) {
 657         case LED_STATE_ERR:
 658                 return;
 659
 660         case LED_STATE_INIT:
 661                 last = get_timer(0);
 662                 ret = gpio_set_value(TX6UL_LED_GPIO, 1);
 663                 if (ret)
 664                         led_state = LED_STATE_ERR;
 665                 else
 666                         led_state = LED_STATE_ON;
 667                 blink_rate = calc_blink_rate();
 668                 break;
 669
 670         case LED_STATE_ON:
 671         case LED_STATE_OFF:
 672                 if (get_timer(last) > blink_rate) {
 673                         blink_rate = calc_blink_rate();
 674                         last = get_timer_masked();
 675                         if (led_state == LED_STATE_ON) {
 676                                 gpio_set_value(TX6UL_LED_GPIO, 0);
 677                         } else {
 678                                 gpio_set_value(TX6UL_LED_GPIO, 1);
 679                         }
 680                         led_state = 1 - led_state;
 681                 }
 682                 break;
 683         }
 684 }
 685
 686 static const iomux_v3_cfg_t stk5_pads[] = {
 687         /* SW controlled LED on STK5 baseboard */
 688         MX6_PAD_SNVS_TAMPER9__GPIO5_IO09,
 689
 690         /* I2C bus on DIMM pins 40/41 */
 691         MX6_PAD_GPIO1_IO01__I2C2_SDA | MUX_MODE_SION | MUX_PAD_CTRL(TX6_I2C_PAD_CTRL),
 692         MX6_PAD_GPIO1_IO00__I2C2_SCL | MUX_MODE_SION | MUX_PAD_CTRL(TX6_I2C_PAD_CTRL),
 693
 694         /* TSC200x PEN IRQ */
 695         MX6_PAD_JTAG_TMS__GPIO1_IO11 | MUX_PAD_CTRL(TX6_GPIO_IN_PAD_CTRL),
 696 #if 0
 697         /* EDT-FT5x06 Polytouch panel */
 698         MX6_PAD_NAND_CS2__GPIO6_IO15 | MUX_PAD_CTRL(TX6_GPIO_IN_PAD_CTRL), /* IRQ */
 699         MX6_PAD_EIM_A16__GPIO2_IO22 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL), /* RESET */
 700         MX6_PAD_EIM_A17__GPIO2_IO21 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL), /* WAKE */
 701
 702         /* USBH1 */
 703         MX6_PAD_EIM_D31__GPIO3_IO31 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL), /* VBUSEN */
 704         MX6_PAD_EIM_D30__GPIO3_IO30 | MUX_PAD_CTRL(TX6_GPIO_IN_PAD_CTRL), /* OC */
 705         /* USBOTG */
 706         MX6_PAD_EIM_D23__GPIO3_IO23 | MUX_PAD_CTRL(TX6_GPIO_IN_PAD_CTRL), /* USBOTG ID */
 707         MX6_PAD_GPIO_7__GPIO1_IO07 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL), /* VBUSEN */
 708         MX6_PAD_GPIO_8__GPIO1_IO08 | MUX_PAD_CTRL(TX6_GPIO_IN_PAD_CTRL), /* OC */
 709 #endif
 710 };
 711
 712 static const struct gpio stk5_gpios[] = {
 713         { TX6UL_LED_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "HEARTBEAT LED", },
 714
 715         { IMX_GPIO_NR(3, 23), GPIOFLAG_INPUT, "USBOTG ID", },
 716         { IMX_GPIO_NR(1, 8), GPIOFLAG_INPUT, "USBOTG OC", },
 717         { IMX_GPIO_NR(1, 7), GPIOFLAG_OUTPUT_INIT_LOW, "USBOTG VBUS enable", },
 718         { IMX_GPIO_NR(3, 30), GPIOFLAG_INPUT, "USBH1 OC", },
 719         { IMX_GPIO_NR(3, 31), GPIOFLAG_OUTPUT_INIT_LOW, "USBH1 VBUS enable", },
 720 };
 721
 722 #ifdef CONFIG_LCD
 723 static u16 tx6_cmap[256];
 724 vidinfo_t panel_info = {
 725         /* set to max. size supported by SoC */
 726         .vl_col = 4096,
 727         .vl_row = 1024,
 728
 729         .vl_bpix = LCD_COLOR32,    /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
 730         .cmap = tx6_cmap,
 731 };
 732
 733 static struct fb_videomode tx6_fb_modes[] = {
 734 #ifndef CONFIG_SYS_LVDS_IF
 735         {
 736                 /* Standard VGA timing */
 737                 .name           = "VGA",
 738                 .refresh        = 60,
 739                 .xres           = 640,
 740                 .yres           = 480,
 741                 .pixclock       = KHZ2PICOS(25175),
 742                 .left_margin    = 48,
 743                 .hsync_len      = 96,
 744                 .right_margin   = 16,
 745                 .upper_margin   = 31,
 746                 .vsync_len      = 2,
 747                 .lower_margin   = 12,
 748                 .sync           = FB_SYNC_CLK_LAT_FALL,
 749         },
 750         {
 751                 /* Emerging ETV570 640 x 480 display. Syncs low active,
 752                  * DE high active, 115.2 mm x 86.4 mm display area
 753                  * VGA compatible timing
 754                  */
 755                 .name           = "ETV570",
 756                 .refresh        = 60,
 757                 .xres           = 640,
 758                 .yres           = 480,
 759                 .pixclock       = KHZ2PICOS(25175),
 760                 .left_margin    = 114,
 761                 .hsync_len      = 30,
 762                 .right_margin   = 16,
 763                 .upper_margin   = 32,
 764                 .vsync_len      = 3,
 765                 .lower_margin   = 10,
 766                 .sync           = FB_SYNC_CLK_LAT_FALL,
 767         },
 768         {
 769                 /* Emerging ET0350G0DH6 320 x 240 display.
 770                  * 70.08 mm x 52.56 mm display area.
 771                  */
 772                 .name           = "ET0350",
 773                 .refresh        = 60,
 774                 .xres           = 320,
 775                 .yres           = 240,
 776                 .pixclock       = KHZ2PICOS(6500),
 777                 .left_margin    = 68 - 34,
 778                 .hsync_len      = 34,
 779                 .right_margin   = 20,
 780                 .upper_margin   = 18 - 3,
 781                 .vsync_len      = 3,
 782                 .lower_margin   = 4,
 783                 .sync           = FB_SYNC_CLK_LAT_FALL,
 784         },
 785         {
 786                 /* Emerging ET0430G0DH6 480 x 272 display.
 787                  * 95.04 mm x 53.856 mm display area.
 788                  */
 789                 .name           = "ET0430",
 790                 .refresh        = 60,
 791                 .xres           = 480,
 792                 .yres           = 272,
 793                 .pixclock       = KHZ2PICOS(9000),
 794                 .left_margin    = 2,
 795                 .hsync_len      = 41,
 796                 .right_margin   = 2,
 797                 .upper_margin   = 2,
 798                 .vsync_len      = 10,
 799                 .lower_margin   = 2,
 800         },
 801         {
 802                 /* Emerging ET0500G0DH6 800 x 480 display.
 803                  * 109.6 mm x 66.4 mm display area.
 804                  */
 805                 .name           = "ET0500",
 806                 .refresh        = 60,
 807                 .xres           = 800,
 808                 .yres           = 480,
 809                 .pixclock       = KHZ2PICOS(33260),
 810                 .left_margin    = 216 - 128,
 811                 .hsync_len      = 128,
 812                 .right_margin   = 1056 - 800 - 216,
 813                 .upper_margin   = 35 - 2,
 814                 .vsync_len      = 2,
 815                 .lower_margin   = 525 - 480 - 35,
 816                 .sync           = FB_SYNC_CLK_LAT_FALL,
 817         },
 818         {
 819                 /* Emerging ETQ570G0DH6 320 x 240 display.
 820                  * 115.2 mm x 86.4 mm display area.
 821                  */
 822                 .name           = "ETQ570",
 823                 .refresh        = 60,
 824                 .xres           = 320,
 825                 .yres           = 240,
 826                 .pixclock       = KHZ2PICOS(6400),
 827                 .left_margin    = 38,
 828                 .hsync_len      = 30,
 829                 .right_margin   = 30,
 830                 .upper_margin   = 16, /* 15 according to datasheet */
 831                 .vsync_len      = 3, /* TVP -> 1>x>5 */
 832                 .lower_margin   = 4, /* 4.5 according to datasheet */
 833                 .sync           = FB_SYNC_CLK_LAT_FALL,
 834         },
 835         {
 836                 /* Emerging ET0700G0DH6 800 x 480 display.
 837                  * 152.4 mm x 91.44 mm display area.
 838                  */
 839                 .name           = "ET0700",
 840                 .refresh        = 60,
 841                 .xres           = 800,
 842                 .yres           = 480,
 843                 .pixclock       = KHZ2PICOS(33260),
 844                 .left_margin    = 216 - 128,
 845                 .hsync_len      = 128,
 846                 .right_margin   = 1056 - 800 - 216,
 847                 .upper_margin   = 35 - 2,
 848                 .vsync_len      = 2,
 849                 .lower_margin   = 525 - 480 - 35,
 850                 .sync           = FB_SYNC_CLK_LAT_FALL,
 851         },
 852         {
 853                 /* Emerging ET070001DM6 800 x 480 display.
 854                  * 152.4 mm x 91.44 mm display area.
 855                  */
 856                 .name           = "ET070001DM6",
 857                 .refresh        = 60,
 858                 .xres           = 800,
 859                 .yres           = 480,
 860                 .pixclock       = KHZ2PICOS(33260),
 861                 .left_margin    = 216 - 128,
 862                 .hsync_len      = 128,
 863                 .right_margin   = 1056 - 800 - 216,
 864                 .upper_margin   = 35 - 2,
 865                 .vsync_len      = 2,
 866                 .lower_margin   = 525 - 480 - 35,
 867                 .sync           = 0,
 868         },
 869 #else
 870         {
 871                 /* HannStar HSD100PXN1
 872                  * 202.7m mm x 152.06 mm display area.
 873                  */
 874                 .name           = "HSD100PXN1",
 875                 .refresh        = 60,
 876                 .xres           = 1024,
 877                 .yres           = 768,
 878                 .pixclock       = KHZ2PICOS(65000),
 879                 .left_margin    = 0,
 880                 .hsync_len      = 0,
 881                 .right_margin   = 320,
 882                 .upper_margin   = 0,
 883                 .vsync_len      = 0,
 884                 .lower_margin   = 38,
 885                 .sync           = FB_SYNC_CLK_LAT_FALL,
 886         },
 887 #endif
 888         {
 889                 /* unnamed entry for assigning parameters parsed from 'video_mode' string */
 890                 .refresh        = 60,
 891                 .left_margin    = 48,
 892                 .hsync_len      = 96,
 893                 .right_margin   = 16,
 894                 .upper_margin   = 31,
 895                 .vsync_len      = 2,
 896                 .lower_margin   = 12,
 897                 .sync           = FB_SYNC_CLK_LAT_FALL,
 898         },
 899 };
 900
 901 static int lcd_enabled = 1;
 902 static int lcd_bl_polarity;
 903
 904 static int lcd_backlight_polarity(void)
 905 {
 906         return lcd_bl_polarity;
 907 }
 908
 909 static const iomux_v3_cfg_t stk5_lcd_pads[] = {
 910 #ifdef CONFIG_LCD
 911         /* LCD RESET */
 912         MX6_PAD_LCD_RESET__GPIO3_IO04 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL),
 913         /* LCD POWER_ENABLE */
 914         MX6_PAD_SNVS_TAMPER4__GPIO5_IO04 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL),
 915         /* LCD Backlight (PWM) */
 916         MX6_PAD_NAND_DQS__GPIO4_IO16 | MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL),
 917         /* Display */
 918         MX6_PAD_LCD_DATA00__LCDIF_DATA00,
 919         MX6_PAD_LCD_DATA01__LCDIF_DATA01,
 920         MX6_PAD_LCD_DATA02__LCDIF_DATA02,
 921         MX6_PAD_LCD_DATA03__LCDIF_DATA03,
 922         MX6_PAD_LCD_DATA04__LCDIF_DATA04,
 923         MX6_PAD_LCD_DATA05__LCDIF_DATA05,
 924         MX6_PAD_LCD_DATA06__LCDIF_DATA06,
 925         MX6_PAD_LCD_DATA07__LCDIF_DATA07,
 926         MX6_PAD_LCD_DATA08__LCDIF_DATA08,
 927         MX6_PAD_LCD_DATA09__LCDIF_DATA09,
 928         MX6_PAD_LCD_DATA10__LCDIF_DATA10,
 929         MX6_PAD_LCD_DATA11__LCDIF_DATA11,
 930         MX6_PAD_LCD_DATA12__LCDIF_DATA12,
 931         MX6_PAD_LCD_DATA13__LCDIF_DATA13,
 932         MX6_PAD_LCD_DATA14__LCDIF_DATA14,
 933         MX6_PAD_LCD_DATA15__LCDIF_DATA15,
 934         MX6_PAD_LCD_DATA16__LCDIF_DATA16,
 935         MX6_PAD_LCD_DATA17__LCDIF_DATA17,
 936         MX6_PAD_LCD_DATA18__LCDIF_DATA18,
 937         MX6_PAD_LCD_DATA19__LCDIF_DATA19,
 938         MX6_PAD_LCD_DATA20__LCDIF_DATA20,
 939         MX6_PAD_LCD_DATA21__LCDIF_DATA21,
 940         MX6_PAD_LCD_DATA22__LCDIF_DATA22,
 941         MX6_PAD_LCD_DATA23__LCDIF_DATA23,
 942         MX6_PAD_LCD_HSYNC__LCDIF_HSYNC, /* HSYNC */
 943         MX6_PAD_LCD_VSYNC__LCDIF_VSYNC, /* VSYNC */
 944         MX6_PAD_LCD_ENABLE__LCDIF_ENABLE, /* OE_ACD */
 945         MX6_PAD_LCD_CLK__LCDIF_CLK, /* LSCLK */
 946 #endif
 947 };
 948
 949 static const struct gpio stk5_lcd_gpios[] = {
 950         { TX6UL_LCD_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "LCD RESET", },
 951         { TX6UL_LCD_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "LCD POWER", },
 952         { TX6UL_LCD_BACKLIGHT_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "LCD BACKLIGHT", },
 953 };
 954
 955 /* run with valid env from NAND/eMMC */
 956 void lcd_enable(void)
 957 {
 958         /* HACK ALERT:
 959          * global variable from common/lcd.c
 960          * Set to 0 here to prevent messages from going to LCD
 961          * rather than serial console
 962          */
 963         lcd_is_enabled = 0;
 964
 965         if (lcd_enabled) {
 966                 karo_load_splashimage(1);
 967
 968                 debug("Switching LCD on\n");
 969                 gpio_set_value(TX6UL_LCD_PWR_GPIO, 1);
 970                 udelay(100);
 971                 gpio_set_value(TX6UL_LCD_RST_GPIO, 1);
 972                 udelay(300000);
 973                 gpio_set_value(TX6UL_LCD_BACKLIGHT_GPIO,
 974                         lcd_backlight_polarity());
 975         }
 976 }
 977
 978 static void lcd_disable(void)
 979 {
 980         if (lcd_enabled) {
 981                 printf("Disabling LCD\n");
 982                 panel_info.vl_row = 0;
 983                 lcd_enabled = 0;
 984         }
 985 }
 986
 987 void lcd_ctrl_init(void *lcdbase)
 988 {
 989         int color_depth = 24;
 990         const char *video_mode = karo_get_vmode(getenv("video_mode"));
 991         const char *vm;
 992         unsigned long val;
 993         int refresh = 60;
 994         struct fb_videomode *p = &tx6_fb_modes[0];
 995         struct fb_videomode fb_mode;
 996         int xres_set = 0, yres_set = 0, bpp_set = 0, refresh_set = 0;
 997
 998         if (!lcd_enabled) {
 999                 debug("LCD disabled\n");
1000                 return;
1001         }
1002
1003         if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
1004                 lcd_disable();
1005                 setenv("splashimage", NULL);
1006                 return;
1007         }
1008
1009         karo_fdt_move_fdt();
1010         lcd_bl_polarity = karo_fdt_get_backlight_polarity(working_fdt);
1011
1012         if (video_mode == NULL) {
1013                 lcd_disable();
1014                 return;
1015         }
1016         vm = video_mode;
1017         if (karo_fdt_get_fb_mode(working_fdt, video_mode, &fb_mode) == 0) {
1018                 p = &fb_mode;
1019                 debug("Using video mode from FDT\n");
1020                 vm += strlen(vm);
1021                 if (fb_mode.xres > panel_info.vl_col ||
1022                         fb_mode.yres > panel_info.vl_row) {
1023                         printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
1024                                 fb_mode.xres, fb_mode.yres,
1025                                 panel_info.vl_col, panel_info.vl_row);
1026                         lcd_enabled = 0;
1027                         return;
1028                 }
1029         }
1030         if (p->name != NULL)
1031                 debug("Trying compiled-in video modes\n");
1032         while (p->name != NULL) {
1033                 if (strcmp(p->name, vm) == 0) {
1034                         debug("Using video mode: '%s'\n", p->name);
1035                         vm += strlen(vm);
1036                         break;
1037                 }
1038                 p++;
1039         }
1040         if (*vm != '\0')
1041                 debug("Trying to decode video_mode: '%s'\n", vm);
1042         while (*vm != '\0') {
1043                 if (*vm >= '0' && *vm <= '9') {
1044                         char *end;
1045
1046                         val = simple_strtoul(vm, &end, 0);
1047                         if (end > vm) {
1048                                 if (!xres_set) {
1049                                         if (val > panel_info.vl_col)
1050                                                 val = panel_info.vl_col;
1051                                         p->xres = val;
1052                                         panel_info.vl_col = val;
1053                                         xres_set = 1;
1054                                 } else if (!yres_set) {
1055                                         if (val > panel_info.vl_row)
1056                                                 val = panel_info.vl_row;
1057                                         p->yres = val;
1058                                         panel_info.vl_row = val;
1059                                         yres_set = 1;
1060                                 } else if (!bpp_set) {
1061                                         switch (val) {
1062                                         case 8:
1063                                         case 16:
1064                                         case 18:
1065                                         case 24:
1066                                         case 32:
1067                                                 color_depth = val;
1068                                                 break;
1069
1070                                         default:
1071                                                 printf("Invalid color depth: '%.*s' in video_mode; using default: '%u'\n",
1072                                                         end - vm, vm, color_depth);
1073                                         }
1074                                         bpp_set = 1;
1075                                 } else if (!refresh_set) {
1076                                         refresh = val;
1077                                         refresh_set = 1;
1078                                 }
1079                         }
1080                         vm = end;
1081                 }
1082                 switch (*vm) {
1083                 case '@':
1084                         bpp_set = 1;
1085                         /* fallthru */
1086                 case '-':
1087                         yres_set = 1;
1088                         /* fallthru */
1089                 case 'x':
1090                         xres_set = 1;
1091                         /* fallthru */
1092                 case 'M':
1093                 case 'R':
1094                         vm++;
1095                         break;
1096
1097                 default:
1098                         if (*vm != '\0')
1099                                 vm++;
1100                 }
1101         }
1102         if (p->xres == 0 || p->yres == 0) {
1103                 printf("Invalid video mode: %s\n", getenv("video_mode"));
1104                 lcd_enabled = 0;
1105                 printf("Supported video modes are:");
1106                 for (p = &tx6_fb_modes[0]; p->name != NULL; p++) {
1107                         printf(" %s", p->name);
1108                 }
1109                 printf("\n");
1110                 return;
1111         }
1112         if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
1113                 printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
1114                         p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
1115                 lcd_enabled = 0;
1116                 return;
1117         }
1118         panel_info.vl_col = p->xres;
1119         panel_info.vl_row = p->yres;
1120
1121         switch (color_depth) {
1122         case 8:
1123                 panel_info.vl_bpix = LCD_COLOR8;
1124                 break;
1125         case 16:
1126                 panel_info.vl_bpix = LCD_COLOR16;
1127                 break;
1128         default:
1129                 panel_info.vl_bpix = LCD_COLOR32;
1130         }
1131
1132         p->pixclock = KHZ2PICOS(refresh *
1133                 (p->xres + p->left_margin + p->right_margin + p->hsync_len) *
1134                 (p->yres + p->upper_margin + p->lower_margin + p->vsync_len) /
1135                                 1000);
1136         debug("Pixel clock set to %lu.%03lu MHz\n",
1137                 PICOS2KHZ(p->pixclock) / 1000, PICOS2KHZ(p->pixclock) % 1000);
1138
1139         if (p != &fb_mode) {
1140                 int ret;
1141
1142                 debug("Creating new display-timing node from '%s'\n",
1143                         video_mode);
1144                 ret = karo_fdt_create_fb_mode(working_fdt, video_mode, p);
1145                 if (ret)
1146                         printf("Failed to create new display-timing node from '%s': %d\n",
1147                                 video_mode, ret);
1148         }
1149
1150         gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
1151         imx_iomux_v3_setup_multiple_pads(stk5_lcd_pads,
1152                                         ARRAY_SIZE(stk5_lcd_pads));
1153
1154         debug("video format: %ux%u-%u@%u\n", p->xres, p->yres,
1155                 color_depth, refresh);
1156
1157         if (karo_load_splashimage(0) == 0) {
1158                 char vmode[128];
1159
1160                 /* setup env variable for mxsfb display driver */
1161                 snprintf(vmode, sizeof(vmode),
1162                         "x:%d,y:%d,le:%d,ri:%d,up:%d,lo:%d,hs:%d,vs:%d,sync:%d,pclk:%d,depth:%d",
1163                         p->xres, p->yres, p->left_margin, p->right_margin,
1164                         p->upper_margin, p->lower_margin, p->hsync_len,
1165                         p->vsync_len, p->sync, p->pixclock, color_depth);
1166                 setenv("videomode", vmode);
1167
1168                 debug("Initializing LCD controller\n");
1169                 lcdif_clk_enable();
1170                 video_hw_init();
1171                 setenv("videomode", NULL);
1172         } else {
1173                 debug("Skipping initialization of LCD controller\n");
1174         }
1175 }
1176 #else
1177 #define lcd_enabled 0
1178 #endif /* CONFIG_LCD */
1179
1180 #ifndef CONFIG_ENV_IS_IN_MMC
1181 static void tx6_mmc_init(void)
1182 {
1183         puts("MMC:   ");
1184         if (board_mmc_init(gd->bd) < 0)
1185                 cpu_mmc_init(gd->bd);
1186         print_mmc_devices(',');
1187 }
1188 #else
1189 static inline void tx6_mmc_init(void)
1190 {
1191 }
1192 #endif
1193
1194 static void stk5_board_init(void)
1195 {
1196         int ret;
1197
1198         ret = gpio_request_array(stk5_gpios, ARRAY_SIZE(stk5_gpios));
1199         if (ret < 0) {
1200                 printf("Failed to request stk5_gpios: %d\n", ret);
1201                 return;
1202         }
1203         imx_iomux_v3_setup_multiple_pads(stk5_pads, ARRAY_SIZE(stk5_pads));
1204         debug("%s@%d: \n", __func__, __LINE__);
1205 }
1206
1207 static void stk5v3_board_init(void)
1208 {
1209         debug("%s@%d: \n", __func__, __LINE__);
1210         stk5_board_init();
1211         debug("%s@%d: \n", __func__, __LINE__);
1212         tx6_mmc_init();
1213 }
1214
1215 static void stk5v5_board_init(void)
1216 {
1217         int ret;
1218
1219         stk5_board_init();
1220         tx6_mmc_init();
1221
1222         ret = gpio_request_one(IMX_GPIO_NR(3, 5), GPIOFLAG_OUTPUT_INIT_HIGH,
1223                         "Flexcan Transceiver");
1224         if (ret) {
1225                 printf("Failed to request Flexcan Transceiver GPIO: %d\n", ret);
1226                 return;
1227         }
1228
1229         imx_iomux_v3_setup_pad(MX6_PAD_LCD_DATA00__GPIO3_IO05 |
1230                         MUX_PAD_CTRL(TX6_GPIO_OUT_PAD_CTRL));
1231 }
1232
1233 static void tx6ul_set_cpu_clock(void)
1234 {
1235         unsigned long cpu_clk = getenv_ulong("cpu_clk", 10, 0);
1236
1237         if (cpu_clk == 0 || cpu_clk == mxc_get_clock(MXC_ARM_CLK) / 1000000)
1238                 return;
1239
1240         if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
1241                 printf("%s detected; skipping cpu clock change\n",
1242                         (wrsr & WRSR_TOUT) ? "WDOG RESET" : "<CTRL-C>");
1243                 return;
1244         }
1245         if (mxc_set_clock(CONFIG_SYS_MX6_HCLK, cpu_clk, MXC_ARM_CLK) == 0) {
1246                 cpu_clk = mxc_get_clock(MXC_ARM_CLK);
1247                 printf("CPU clock set to %lu.%03lu MHz\n",
1248                         cpu_clk / 1000000, cpu_clk / 1000 % 1000);
1249         } else {
1250                 printf("Error: Failed to set CPU clock to %lu MHz\n", cpu_clk);
1251         }
1252 }
1253
1254 int board_late_init(void)
1255 {
1256         const char *baseboard;
1257
1258         debug("%s@%d: \n", __func__, __LINE__);
1259
1260         env_cleanup();
1261
1262         if (tx6_temp_check_enabled)
1263                 check_cpu_temperature(1);
1264
1265         tx6ul_set_cpu_clock();
1266
1267         if (had_ctrlc())
1268                 setenv_ulong("safeboot", 1);
1269         else if (wrsr & WRSR_TOUT)
1270                 setenv_ulong("wdreset", 1);
1271         else
1272                 karo_fdt_move_fdt();
1273
1274         baseboard = getenv("baseboard");
1275         if (!baseboard)
1276                 goto exit;
1277
1278         printf("Baseboard: %s\n", baseboard);
1279
1280         if (strncmp(baseboard, "stk5", 4) == 0) {
1281                 if ((strlen(baseboard) == 4) ||
1282                         strcmp(baseboard, "stk5-v3") == 0) {
1283                         stk5v3_board_init();
1284                 } else if (strcmp(baseboard, "stk5-v5") == 0) {
1285                         const char *otg_mode = getenv("otg_mode");
1286
1287                         if (otg_mode && strcmp(otg_mode, "host") == 0) {
1288                                 printf("otg_mode='%s' is incompatible with baseboard %s; setting to 'none'\n",
1289                                         otg_mode, baseboard);
1290                                 setenv("otg_mode", "none");
1291                         }
1292                         stk5v5_board_init();
1293                 } else {
1294                         printf("WARNING: Unsupported STK5 board rev.: %s\n",
1295                                 baseboard + 4);
1296                 }
1297         } else {
1298                 printf("WARNING: Unsupported baseboard: '%s'\n",
1299                         baseboard);
1300                 if (!had_ctrlc())
1301                         return -EINVAL;
1302         }
1303
1304 exit:
1305         debug("%s@%d: \n", __func__, __LINE__);
1306
1307         clear_ctrlc();
1308         return 0;
1309 }
1310
1311 #ifdef CONFIG_FEC_MXC
1312
1313 #ifndef ETH_ALEN
1314 #define ETH_ALEN 6
1315 #endif
1316
1317 static void tx6_init_mac(void)
1318 {
1319         u8 mac[ETH_ALEN];
1320         const char *baseboard = getenv("baseboard");
1321
1322         imx_get_mac_from_fuse(0, mac);
1323         if (!is_valid_ethaddr(mac)) {
1324                 printf("No valid MAC address programmed\n");
1325                 return;
1326         }
1327         printf("MAC addr from fuse: %pM\n", mac);
1328         if (!getenv("ethaddr"))
1329                 eth_setenv_enetaddr("ethaddr", mac);
1330
1331         if (!baseboard || strncmp(baseboard, "stk5", 4) == 0) {
1332                 setenv("eth1addr", NULL);
1333                 return;
1334         }
1335         if (getenv("eth1addr"))
1336                 return;
1337         imx_get_mac_from_fuse(1, mac);
1338         eth_setenv_enetaddr("eth1addr", mac);
1339 }
1340
1341 int board_eth_init(bd_t *bis)
1342 {
1343         int ret;
1344
1345         tx6_init_mac();
1346
1347         /* delay at least 21ms for the PHY internal POR signal to deassert */
1348         udelay(22000);
1349
1350         imx_iomux_v3_setup_multiple_pads(tx6ul_enet1_pads,
1351                                         ARRAY_SIZE(tx6ul_enet1_pads));
1352
1353         /* Deassert RESET to the external phys */
1354         gpio_set_value(TX6UL_FEC_RST_GPIO, 1);
1355
1356         if (getenv("ethaddr")) {
1357                 ret = fecmxc_initialize_multi(bis, 0, 0, ENET_BASE_ADDR);
1358                 if (ret) {
1359                         printf("failed to initialize FEC0: %d\n", ret);
1360                         return ret;
1361                 }
1362         }
1363         if (getenv("eth1addr")) {
1364                 ret = gpio_request_array(tx6ul_fec2_gpios,
1365                                         ARRAY_SIZE(tx6ul_fec2_gpios));
1366                 if (ret < 0) {
1367                         printf("Failed to request tx6ul_fec2_gpios: %d\n", ret);
1368                 }
1369                 imx_iomux_v3_setup_multiple_pads(tx6ul_enet2_pads,
1370                                                 ARRAY_SIZE(tx6ul_enet2_pads));
1371
1372                 writel(0x00100000, 0x020c80e4); /* assert ENET2_125M_EN */
1373
1374                 /* Minimum PHY reset duration */
1375                 udelay(100);
1376                 gpio_set_value(TX6UL_FEC2_RST_GPIO, 1);
1377                 /* Wait for PHY internal POR to finish */
1378                 udelay(22000);
1379
1380                 ret = fecmxc_initialize_multi(bis, 1, 2, ENET2_BASE_ADDR);
1381                 if (ret) {
1382                         printf("failed to initialize FEC1: %d\n", ret);
1383                         return ret;
1384                 }
1385         }
1386         return 0;
1387 }
1388 #endif /* CONFIG_FEC_MXC */
1389
1390 #ifdef CONFIG_SERIAL_TAG
1391 void get_board_serial(struct tag_serialnr *serialnr)
1392 {
1393         struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
1394         struct fuse_bank0_regs *fuse = (void *)ocotp->bank[0].fuse_regs;
1395
1396         serialnr->low = readl(&fuse->cfg0);
1397         serialnr->high = readl(&fuse->cfg1);
1398 }
1399 #endif
1400
1401 #if defined(CONFIG_OF_BOARD_SETUP)
1402 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
1403 #include <jffs2/jffs2.h>
1404 #include <mtd_node.h>
1405 static struct node_info nodes[] = {
1406         { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, },
1407 };
1408 #else
1409 #define fdt_fixup_mtdparts(b,n,c) do { } while (0)
1410 #endif
1411
1412 static const char *tx6_touchpanels[] = {
1413         "ti,tsc2007",
1414         "edt,edt-ft5x06",
1415         "eeti,egalax_ts",
1416 };
1417
1418 int ft_board_setup(void *blob, bd_t *bd)
1419 {
1420         const char *baseboard = getenv("baseboard");
1421         int stk5_v5 = baseboard != NULL && (strcmp(baseboard, "stk5-v5") == 0);
1422         const char *video_mode = karo_get_vmode(getenv("video_mode"));
1423         int ret;
1424
1425         ret = fdt_increase_size(blob, 4096);
1426         if (ret) {
1427                 printf("Failed to increase FDT size: %s\n", fdt_strerror(ret));
1428                 return ret;
1429         }
1430         if (stk5_v5)
1431                 karo_fdt_enable_node(blob, "stk5led", 0);
1432
1433         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
1434
1435         karo_fdt_fixup_touchpanel(blob, tx6_touchpanels,
1436                                 ARRAY_SIZE(tx6_touchpanels));
1437         karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy", "vbus-supply");
1438         karo_fdt_fixup_flexcan(blob, stk5_v5);
1439
1440         karo_fdt_update_fb_mode(blob, video_mode);
1441
1442         return 0;
1443 }
1444 #endif /* CONFIG_OF_BOARD_SETUP */