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 #ifdef CONFIG_SYS_I2C_SOFT
  48 #define TX6UL_I2C1_SCL_GPIO             CONFIG_SOFT_I2C_GPIO_SCL
  49 #define TX6UL_I2C1_SDA_GPIO             CONFIG_SOFT_I2C_GPIO_SDA
  50 #endif
  51
  52 #define TX6UL_SD1_CD_GPIO               IMX_GPIO_NR(4, 14)
  53
  54 #ifdef CONFIG_MX6_TEMPERATURE_MIN
  55 #define TEMPERATURE_MIN                 CONFIG_MX6_TEMPERATURE_MIN
  56 #else
  57 #define TEMPERATURE_MIN                 (-40)
  58 #endif
  59 #ifdef CONFIG_MX6_TEMPERATURE_HOT
  60 #define TEMPERATURE_HOT                 CONFIG_MX6_TEMPERATURE_HOT
  61 #else
  62 #define TEMPERATURE_HOT                 80
  63 #endif
  64
  65 DECLARE_GLOBAL_DATA_PTR;
  66
  67 #define MUX_CFG_SION                    IOMUX_PAD(0, 0, IOMUX_CONFIG_SION, 0, 0, 0)
  68
  69 char __uboot_img_end[0] __attribute__((section(".__uboot_img_end")));
  70 #ifdef CONFIG_SECURE_BOOT
  71 char __csf_data[0] __attribute__((section(".__csf_data")));
  72 #endif
  73
  74 #define TX6UL_DEFAULT_PAD_CTRL  MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |      \
  75                                         PAD_CTL_SPEED_MED |             \
  76                                         PAD_CTL_DSE_40ohm |             \
  77                                         PAD_CTL_SRE_FAST)
  78 #define TX6UL_I2C_PAD_CTRL      MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |       \
  79                                         PAD_CTL_ODE |                   \
  80                                         PAD_CTL_HYS |                   \
  81                                         PAD_CTL_SPEED_LOW |             \
  82                                         PAD_CTL_DSE_34ohm |             \
  83                                         PAD_CTL_SRE_FAST)
  84 #define TX6UL_I2C_GPIO_PAD_CTRL MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |       \
  85                                         PAD_CTL_HYS |                   \
  86                                         PAD_CTL_DSE_34ohm |             \
  87                                         PAD_CTL_SPEED_MED)
  88 #define TX6UL_ENET_PAD_CTRL     MUX_PAD_CTRL(PAD_CTL_SPEED_HIGH |       \
  89                                         PAD_CTL_DSE_48ohm |             \
  90                                         PAD_CTL_PUS_100K_UP |           \
  91                                         PAD_CTL_SRE_FAST)
  92 #define TX6UL_GPIO_OUT_PAD_CTRL MUX_PAD_CTRL(PAD_CTL_SPEED_LOW |        \
  93                                         PAD_CTL_DSE_60ohm |             \
  94                                         PAD_CTL_SRE_SLOW)
  95 #define TX6UL_GPIO_IN_PAD_CTRL  MUX_PAD_CTRL(PAD_CTL_SPEED_LOW |        \
  96                                         PAD_CTL_PUS_47K_UP)
  97
  98
  99 static const iomux_v3_cfg_t const tx6ul_pads[] = {
 100         /* UART pads */
 101 #if CONFIG_MXC_UART_BASE == UART1_BASE
 102         MX6_PAD_UART1_TX_DATA__UART1_DCE_TX | TX6UL_DEFAULT_PAD_CTRL,
 103         MX6_PAD_UART1_RX_DATA__UART1_DCE_RX | TX6UL_DEFAULT_PAD_CTRL,
 104         MX6_PAD_UART1_RTS_B__UART1_DCE_RTS | TX6UL_DEFAULT_PAD_CTRL,
 105         MX6_PAD_UART1_CTS_B__UART1_DCE_CTS | TX6UL_DEFAULT_PAD_CTRL,
 106 #endif
 107 #if CONFIG_MXC_UART_BASE == UART2_BASE
 108         MX6_PAD_UART2_TX_DATA__UART2_DCE_TX | TX6UL_DEFAULT_PAD_CTRL,
 109         MX6_PAD_UART2_RX_DATA__UART2_DCE_RX | TX6UL_DEFAULT_PAD_CTRL,
 110         MX6_PAD_UART3_RX_DATA__UART2_DCE_RTS | TX6UL_DEFAULT_PAD_CTRL,
 111         MX6_PAD_UART3_TX_DATA__UART2_DCE_CTS | TX6UL_DEFAULT_PAD_CTRL,
 112 #endif
 113 #if CONFIG_MXC_UART_BASE == UART5_BASE
 114         MX6_PAD_GPIO1_IO04__UART5_DCE_TX | TX6UL_DEFAULT_PAD_CTRL,
 115         MX6_PAD_GPIO1_IO05__UART5_DCE_RX | TX6UL_DEFAULT_PAD_CTRL,
 116         MX6_PAD_GPIO1_IO08__UART5_DCE_RTS | TX6UL_DEFAULT_PAD_CTRL,
 117         MX6_PAD_GPIO1_IO09__UART5_DCE_CTS | TX6UL_DEFAULT_PAD_CTRL,
 118 #endif
 119         /* FEC PHY GPIO functions */
 120         MX6_PAD_SNVS_TAMPER7__GPIO5_IO07 | TX6UL_GPIO_OUT_PAD_CTRL, /* PHY POWER */
 121         MX6_PAD_SNVS_TAMPER6__GPIO5_IO06 | TX6UL_GPIO_OUT_PAD_CTRL, /* PHY RESET */
 122         MX6_PAD_SNVS_TAMPER5__GPIO5_IO05 | TX6UL_GPIO_IN_PAD_CTRL, /* PHY INT */
 123 };
 124
 125 static const iomux_v3_cfg_t const tx6ul_enet1_pads[] = {
 126         /* FEC functions */
 127         MX6_PAD_GPIO1_IO07__ENET1_MDC | MUX_PAD_CTRL(PAD_CTL_DSE_48ohm |
 128                                 PAD_CTL_SPEED_MED),
 129         MX6_PAD_GPIO1_IO06__ENET1_MDIO | MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |
 130                                 PAD_CTL_DSE_48ohm | PAD_CTL_SPEED_MED),
 131         MX6_PAD_ENET1_TX_CLK__ENET1_REF_CLK1 | MUX_CFG_SION |
 132                                 MUX_PAD_CTRL(PAD_CTL_SPEED_MED |
 133                                 PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST),
 134         MX6_PAD_ENET1_RX_ER__ENET1_RX_ER | TX6UL_ENET_PAD_CTRL,
 135         MX6_PAD_ENET1_RX_EN__ENET1_RX_EN | TX6UL_ENET_PAD_CTRL,
 136         MX6_PAD_ENET1_RX_DATA1__ENET1_RDATA01 | TX6UL_ENET_PAD_CTRL,
 137         MX6_PAD_ENET1_RX_DATA0__ENET1_RDATA00 | TX6UL_ENET_PAD_CTRL,
 138         MX6_PAD_ENET1_TX_EN__ENET1_TX_EN | TX6UL_ENET_PAD_CTRL,
 139         MX6_PAD_ENET1_TX_DATA1__ENET1_TDATA01 | TX6UL_ENET_PAD_CTRL,
 140         MX6_PAD_ENET1_TX_DATA0__ENET1_TDATA00 | TX6UL_ENET_PAD_CTRL,
 141 };
 142
 143 static const iomux_v3_cfg_t const tx6ul_enet2_pads[] = {
 144         MX6_PAD_ENET2_TX_CLK__ENET2_REF_CLK2 | MUX_CFG_SION |
 145                                 MUX_PAD_CTRL(PAD_CTL_SPEED_HIGH |
 146                                 PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST),
 147         MX6_PAD_ENET2_RX_ER__ENET2_RX_ER | TX6UL_ENET_PAD_CTRL,
 148         MX6_PAD_ENET2_RX_EN__ENET2_RX_EN | TX6UL_ENET_PAD_CTRL,
 149         MX6_PAD_ENET2_RX_DATA1__ENET2_RDATA01 | TX6UL_ENET_PAD_CTRL,
 150         MX6_PAD_ENET2_RX_DATA0__ENET2_RDATA00 | TX6UL_ENET_PAD_CTRL,
 151         MX6_PAD_ENET2_TX_EN__ENET2_TX_EN | TX6UL_ENET_PAD_CTRL,
 152         MX6_PAD_ENET2_TX_DATA1__ENET2_TDATA01 | TX6UL_ENET_PAD_CTRL,
 153         MX6_PAD_ENET2_TX_DATA0__ENET2_TDATA00 | TX6UL_ENET_PAD_CTRL,
 154 };
 155
 156 static const iomux_v3_cfg_t const tx6ul_i2c_pads[] = {
 157         /* internal I2C */
 158         MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 | MUX_CFG_SION |
 159                         TX6UL_I2C_PAD_CTRL, /* I2C SCL */
 160         MX6_PAD_SNVS_TAMPER0__GPIO5_IO00 | MUX_CFG_SION |
 161                         TX6UL_I2C_PAD_CTRL, /* I2C SDA */
 162 };
 163
 164 static const iomux_v3_cfg_t const tx6ul_i2c_gpio_pads[] = {
 165         /* internal I2C set up for I2C bus recovery */
 166         MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 | MUX_CFG_SION |
 167                         TX6UL_I2C_PAD_CTRL, /* I2C SCL */
 168         MX6_PAD_SNVS_TAMPER0__GPIO5_IO00 | MUX_CFG_SION |
 169                         TX6UL_I2C_PAD_CTRL, /* I2C SDA */
 170 };
 171
 172 static const struct gpio const tx6ul_gpios[] = {
 173 #ifdef CONFIG_SYS_I2C_SOFT
 174         /* These two entries are used to forcefully reinitialize the I2C bus */
 175         { TX6UL_I2C1_SCL_GPIO, GPIOFLAG_INPUT, "I2C1 SCL", },
 176         { TX6UL_I2C1_SDA_GPIO, GPIOFLAG_INPUT, "I2C1 SDA", },
 177 #endif
 178         { TX6UL_FEC_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
 179         { TX6UL_FEC_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC PHY RESET", },
 180         { TX6UL_FEC_INT_GPIO, GPIOFLAG_INPUT, "FEC PHY INT", },
 181 };
 182
 183 static const struct gpio const tx6ul_fec2_gpios[] = {
 184         { TX6UL_FEC2_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC2 PHY RESET", },
 185         { TX6UL_FEC2_INT_GPIO, GPIOFLAG_INPUT, "FEC2 PHY INT", },
 186 };
 187
 188 #define GPIO_DR 0
 189 #define GPIO_DIR 4
 190 #define GPIO_PSR 8
 191
 192 /* run with default environment */
 193 #if defined(TX6UL_I2C1_SCL_GPIO) && defined(TX6UL_I2C1_SDA_GPIO)
 194 #define SCL_BANK        (TX6UL_I2C1_SCL_GPIO / 32)
 195 #define SDA_BANK        (TX6UL_I2C1_SDA_GPIO / 32)
 196 #define SCL_BIT         (1 << (TX6UL_I2C1_SCL_GPIO % 32))
 197 #define SDA_BIT         (1 << (TX6UL_I2C1_SDA_GPIO % 32))
 198
 199 static void * const gpio_ports[] = {
 200         (void *)GPIO1_BASE_ADDR,
 201         (void *)GPIO2_BASE_ADDR,
 202         (void *)GPIO3_BASE_ADDR,
 203         (void *)GPIO4_BASE_ADDR,
 204         (void *)GPIO5_BASE_ADDR,
 205 };
 206
 207 static void tx6ul_i2c_recover(void)
 208 {
 209         int i;
 210         int bad = 0;
 211         struct gpio_regs *scl_regs = gpio_ports[SCL_BANK];
 212         struct gpio_regs *sda_regs = gpio_ports[SDA_BANK];
 213
 214         if ((readl(&scl_regs->gpio_psr) & SCL_BIT) &&
 215                 (readl(&sda_regs->gpio_psr) & SDA_BIT))
 216                 return;
 217
 218         debug("Clearing I2C bus\n");
 219         if (!(readl(&scl_regs->gpio_psr) & SCL_BIT)) {
 220                 printf("I2C SCL stuck LOW\n");
 221                 bad++;
 222
 223                 setbits_le32(&scl_regs->gpio_dr, SCL_BIT);
 224                 setbits_le32(&scl_regs->gpio_dir, SCL_BIT);
 225
 226                 imx_iomux_v3_setup_pad(MX6_PAD_SNVS_TAMPER1__GPIO5_IO01 |
 227                                 MUX_CFG_SION | TX6UL_GPIO_OUT_PAD_CTRL);
 228         }
 229         if (!(readl(&sda_regs->gpio_psr) & SDA_BIT)) {
 230                 printf("I2C SDA stuck LOW\n");
 231                 bad++;
 232
 233                 clrbits_le32(&sda_regs->gpio_dir, SDA_BIT);
 234                 setbits_le32(&scl_regs->gpio_dr, SCL_BIT);
 235                 setbits_le32(&scl_regs->gpio_dir, SCL_BIT);
 236
 237                 imx_iomux_v3_setup_multiple_pads(tx6ul_i2c_gpio_pads,
 238                                                 ARRAY_SIZE(tx6ul_i2c_gpio_pads));
 239
 240                 udelay(5);
 241
 242                 for (i = 0; i < 18; i++) {
 243                         u32 reg = readl(&scl_regs->gpio_dr) ^ SCL_BIT;
 244
 245                         debug("%sing SCL\n", (reg & SCL_BIT) ? "Sett" : "Clear");
 246                         writel(reg, &scl_regs->gpio_dr);
 247                         udelay(5);
 248                         if (reg & SCL_BIT) {
 249                                 if (readl(&sda_regs->gpio_psr) & SDA_BIT)
 250                                         break;
 251                                 if (!(readl(&scl_regs->gpio_psr) & SCL_BIT))
 252                                         break;
 253                                 break;
 254                         }
 255                 }
 256         }
 257         if (bad) {
 258                 bool scl = !!(readl(&scl_regs->gpio_psr) & SCL_BIT);
 259                 bool sda = !!(readl(&sda_regs->gpio_psr) & SDA_BIT);
 260
 261                 if (scl && sda) {
 262                         printf("I2C bus recovery succeeded\n");
 263                 } else {
 264                         printf("I2C bus recovery FAILED: SCL: %d SDA: %d\n",
 265                                 scl, sda);
 266                 }
 267                 imx_iomux_v3_setup_multiple_pads(tx6ul_i2c_pads,
 268                                                 ARRAY_SIZE(tx6ul_i2c_pads));
 269         }
 270 }
 271 #else
 272 static inline void tx6ul_i2c_recover(void)
 273 {
 274 }
 275 #endif
 276
 277 /* placed in section '.data' to prevent overwriting relocation info
 278  * overlayed with bss
 279  */
 280 static u32 wrsr __data;
 281
 282 #define WRSR_POR                        (1 << 4)
 283 #define WRSR_TOUT                       (1 << 1)
 284 #define WRSR_SFTW                       (1 << 0)
 285
 286 static void print_reset_cause(void)
 287 {
 288         struct src *src_regs = (struct src *)SRC_BASE_ADDR;
 289         void __iomem *wdt_base = (void __iomem *)WDOG1_BASE_ADDR;
 290         u32 srsr;
 291         char *dlm = "";
 292
 293         printf("Reset cause: ");
 294
 295         srsr = readl(&src_regs->srsr);
 296         wrsr = readw(wdt_base + 4);
 297
 298         if (wrsr & WRSR_POR) {
 299                 printf("%sPOR", dlm);
 300                 dlm = " | ";
 301         }
 302         if (srsr & 0x00004) {
 303                 printf("%sCSU", dlm);
 304                 dlm = " | ";
 305         }
 306         if (srsr & 0x00008) {
 307                 printf("%sIPP USER", dlm);
 308                 dlm = " | ";
 309         }
 310         if (srsr & 0x00010) {
 311                 if (wrsr & WRSR_SFTW) {
 312                         printf("%sSOFT", dlm);
 313                         dlm = " | ";
 314                 }
 315                 if (wrsr & WRSR_TOUT) {
 316                         printf("%sWDOG", dlm);
 317                         dlm = " | ";
 318                 }
 319         }
 320         if (srsr & 0x00020) {
 321                 printf("%sJTAG HIGH-Z", dlm);
 322                 dlm = " | ";
 323         }
 324         if (srsr & 0x00040) {
 325                 printf("%sJTAG SW", dlm);
 326                 dlm = " | ";
 327         }
 328         if (srsr & 0x10000) {
 329                 printf("%sWARM BOOT", dlm);
 330                 dlm = " | ";
 331         }
 332         if (dlm[0] == '\0')
 333                 printf("unknown");
 334
 335         printf("\n");
 336 }
 337
 338 #ifdef CONFIG_IMX6_THERMAL
 339 #include <thermal.h>
 340 #include <imx_thermal.h>
 341 #include <fuse.h>
 342
 343 static void print_temperature(void)
 344 {
 345         struct udevice *thermal_dev;
 346         int cpu_tmp, minc, maxc, ret;
 347         char const *grade_str;
 348         static u32 __data thermal_calib;
 349
 350         puts("Temperature: ");
 351         switch (get_cpu_temp_grade(&minc, &maxc)) {
 352         case TEMP_AUTOMOTIVE:
 353                 grade_str = "Automotive";
 354                 break;
 355         case TEMP_INDUSTRIAL:
 356                 grade_str = "Industrial";
 357                 break;
 358         case TEMP_EXTCOMMERCIAL:
 359                 grade_str = "Extended Commercial";
 360                 break;
 361         default:
 362                 grade_str = "Commercial";
 363         }
 364         printf("%s grade (%dC to %dC)", grade_str, minc, maxc);
 365         ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
 366         if (ret == 0) {
 367                 ret = thermal_get_temp(thermal_dev, &cpu_tmp);
 368
 369                 if (ret == 0)
 370                         printf(" at %dC", cpu_tmp);
 371                 else
 372                         puts(" - failed to read sensor data");
 373         } else {
 374                 puts(" - no sensor device found");
 375         }
 376
 377         if (fuse_read(1, 6, &thermal_calib) == 0) {
 378                 printf(" - calibration data 0x%08x\n", thermal_calib);
 379         } else {
 380                 puts(" - Failed to read thermal calib fuse\n");
 381         }
 382 }
 383 #else
 384 static inline void print_temperature(void)
 385 {
 386 }
 387 #endif
 388
 389 int checkboard(void)
 390 {
 391         u32 cpurev = get_cpu_rev();
 392         char *cpu_str = "?";
 393
 394         if (is_cpu_type(MXC_CPU_MX6SL))
 395                 cpu_str = "SL";
 396         else if (is_cpu_type(MXC_CPU_MX6DL))
 397                 cpu_str = "DL";
 398         else if (is_cpu_type(MXC_CPU_MX6SOLO))
 399                 cpu_str = "SOLO";
 400         else if (is_cpu_type(MXC_CPU_MX6Q))
 401                 cpu_str = "Q";
 402         else if (is_cpu_type(MXC_CPU_MX6UL))
 403                 cpu_str = "UL";
 404
 405         printf("CPU:   Freescale i.MX6%s rev%d.%d at %d MHz\n",
 406                 cpu_str,
 407                 (cpurev & 0x000F0) >> 4,
 408                 (cpurev & 0x0000F) >> 0,
 409                 mxc_get_clock(MXC_ARM_CLK) / 1000000);
 410
 411         print_temperature();
 412         print_reset_cause();
 413 #ifdef CONFIG_MX6_TEMPERATURE_HOT
 414         check_cpu_temperature(1);
 415 #endif
 416         tx6ul_i2c_recover();
 417         return 0;
 418 }
 419
 420 /* serial port not initialized at this point */
 421 int board_early_init_f(void)
 422 {
 423         return 0;
 424 }
 425
 426 #ifndef CONFIG_MX6_TEMPERATURE_HOT
 427 static bool tx6ul_temp_check_enabled = true;
 428 #else
 429 #define tx6ul_temp_check_enabled        0
 430 #endif
 431
 432 static inline u8 tx6ul_mem_suffix(void)
 433 {
 434 #ifdef CONFIG_TX6UL_NAND
 435         return '0';
 436 #else
 437         return '1';
 438 #endif
 439 }
 440
 441 #ifdef CONFIG_RN5T567
 442 /* PMIC settings */
 443 #define VDD_RTC_VAL             rn5t_mV_to_regval_rtc(3000)
 444 #define VDD_CORE_VAL            rn5t_mV_to_regval(1300)         /* DCDC1 */
 445 #define VDD_CORE_VAL_LP         rn5t_mV_to_regval(900)
 446 #define VDD_DDR_VAL             rn5t_mV_to_regval(1350)         /* DCDC3 */
 447 #define VDD_DDR_VAL_LP          rn5t_mV_to_regval(1350)
 448 #define VDD_HIGH_VAL            rn5t_mV_to_regval(3300)         /* DCDC4 */
 449 #define VDD_HIGH_VAL_LP         rn5t_mV_to_regval(3300)
 450 #define VDD_CSI_VAL             rn5t_mV_to_regval2(3300)        /* LDO4 */
 451 #define VDD_CSI_VAL_LP          rn5t_mV_to_regval2(3300)
 452
 453 static struct pmic_regs rn5t567_regs[] = {
 454         { RN5T567_NOETIMSET, NOETIMSET_DIS_OFF_NOE_TIM | 0x5, },
 455         { RN5T567_DC2CTL, DC2_DC2DIS, },
 456         { RN5T567_DC1DAC, VDD_CORE_VAL, },
 457         { RN5T567_DC3DAC, VDD_DDR_VAL, },
 458         { RN5T567_DC4DAC, VDD_HIGH_VAL, },
 459         { RN5T567_DC1DAC_SLP, VDD_CORE_VAL_LP, },
 460         { RN5T567_DC3DAC_SLP, VDD_DDR_VAL_LP, },
 461         { RN5T567_DC4DAC_SLP, VDD_HIGH_VAL_LP, },
 462         { RN5T567_LDOEN1, 0x01f, ~0x1f, },
 463         { RN5T567_LDOEN2, 0x10, ~0x30, },
 464         { RN5T567_LDODIS, 0x00, },
 465         { RN5T567_LDO4DAC, VDD_CSI_VAL, },
 466         { RN5T567_LDORTC1DAC, VDD_RTC_VAL, },
 467         { RN5T567_LDORTC1_SLOT, 0x0f, ~0x3f, },
 468 };
 469
 470 static int pmic_addr = 0x33;
 471 #endif
 472
 473 int board_init(void)
 474 {
 475         int ret;
 476         u32 cpurev = get_cpu_rev();
 477
 478         debug("%s@%d: \n", __func__, __LINE__);
 479
 480         printf("Board: Ka-Ro TXUL-%c01%c\n",
 481                 ((cpurev &0xff) > 0x10) ? '5' : '0',
 482                 tx6ul_mem_suffix());
 483
 484         get_hab_status();
 485
 486         ret = gpio_request_array(tx6ul_gpios, ARRAY_SIZE(tx6ul_gpios));
 487         if (ret < 0)
 488                 printf("Failed to request tx6ul_gpios: %d\n", ret);
 489
 490         imx_iomux_v3_setup_multiple_pads(tx6ul_pads, ARRAY_SIZE(tx6ul_pads));
 491
 492         /* Address of boot parameters */
 493         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x1000;
 494         gd->bd->bi_arch_number = -1;
 495
 496         if (ctrlc() || (wrsr & WRSR_TOUT)) {
 497                 if (wrsr & WRSR_TOUT)
 498                         printf("WDOG RESET detected; Skipping PMIC setup\n");
 499                 else
 500                         printf("<CTRL-C> detected; safeboot enabled\n");
 501 #ifndef CONFIG_MX6_TEMPERATURE_HOT
 502                 tx6ul_temp_check_enabled = false;
 503 #endif
 504                 return 0;
 505         }
 506
 507         ret = tx6_pmic_init(pmic_addr, rn5t567_regs, ARRAY_SIZE(rn5t567_regs));
 508         if (ret) {
 509                 printf("Failed to setup PMIC voltages: %d\n", ret);
 510                 hang();
 511         }
 512         return 0;
 513 }
 514
 515 int dram_init(void)
 516 {
 517         debug("%s@%d: \n", __func__, __LINE__);
 518
 519         /* dram_init must store complete ramsize in gd->ram_size */
 520         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 521                                 PHYS_SDRAM_1_SIZE * CONFIG_NR_DRAM_BANKS);
 522         return 0;
 523 }
 524
 525 void dram_init_banksize(void)
 526 {
 527         debug("%s@%d: \n", __func__, __LINE__);
 528
 529         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 530         gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
 531                         PHYS_SDRAM_1_SIZE);
 532 #if CONFIG_NR_DRAM_BANKS > 1
 533         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 534         gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2,
 535                         PHYS_SDRAM_2_SIZE);
 536 #endif
 537 }
 538
 539 #ifdef  CONFIG_FSL_ESDHC
 540 #define TX6UL_SD_PAD_CTRL       MUX_PAD_CTRL(PAD_CTL_PUS_47K_UP |       \
 541                                         PAD_CTL_SPEED_MED |             \
 542                                         PAD_CTL_DSE_40ohm |             \
 543                                         PAD_CTL_SRE_FAST)
 544
 545 static const iomux_v3_cfg_t mmc0_pads[] = {
 546         MX6_PAD_SD1_CMD__USDHC1_CMD | TX6UL_SD_PAD_CTRL,
 547         MX6_PAD_SD1_CLK__USDHC1_CLK | TX6UL_SD_PAD_CTRL,
 548         MX6_PAD_SD1_DATA0__USDHC1_DATA0 | TX6UL_SD_PAD_CTRL,
 549         MX6_PAD_SD1_DATA1__USDHC1_DATA1 | TX6UL_SD_PAD_CTRL,
 550         MX6_PAD_SD1_DATA2__USDHC1_DATA2 | TX6UL_SD_PAD_CTRL,
 551         MX6_PAD_SD1_DATA3__USDHC1_DATA3 | TX6UL_SD_PAD_CTRL,
 552         /* SD1 CD */
 553         MX6_PAD_NAND_CE1_B__GPIO4_IO14 | TX6UL_SD_PAD_CTRL,
 554 };
 555
 556 #ifdef CONFIG_TX6_EMMC
 557 static const iomux_v3_cfg_t mmc1_pads[] = {
 558         MX6_PAD_NAND_WE_B__USDHC2_CMD | TX6UL_SD_PAD_CTRL,
 559         MX6_PAD_NAND_RE_B__USDHC2_CLK | TX6UL_SD_PAD_CTRL,
 560         MX6_PAD_NAND_DATA00__USDHC2_DATA0 | TX6UL_SD_PAD_CTRL,
 561         MX6_PAD_NAND_DATA01__USDHC2_DATA1 | TX6UL_SD_PAD_CTRL,
 562         MX6_PAD_NAND_DATA02__USDHC2_DATA2 | TX6UL_SD_PAD_CTRL,
 563         MX6_PAD_NAND_DATA03__USDHC2_DATA3 | TX6UL_SD_PAD_CTRL,
 564         /* eMMC RESET */
 565         MX6_PAD_NAND_ALE__USDHC2_RESET_B | MUX_PAD_CTRL(PAD_CTL_PUS_47K_UP |
 566                                                 PAD_CTL_DSE_40ohm),
 567 };
 568 #endif
 569
 570 static struct tx6ul_esdhc_cfg {
 571         const iomux_v3_cfg_t *pads;
 572         int num_pads;
 573         enum mxc_clock clkid;
 574         struct fsl_esdhc_cfg cfg;
 575         int cd_gpio;
 576 } tx6ul_esdhc_cfg[] = {
 577 #ifdef CONFIG_TX6_EMMC
 578         {
 579                 .pads = mmc1_pads,
 580                 .num_pads = ARRAY_SIZE(mmc1_pads),
 581                 .clkid = MXC_ESDHC2_CLK,
 582                 .cfg = {
 583                         .esdhc_base = (void __iomem *)USDHC2_BASE_ADDR,
 584                         .max_bus_width = 4,
 585                 },
 586                 .cd_gpio = -EINVAL,
 587         },
 588 #endif
 589         {
 590                 .pads = mmc0_pads,
 591                 .num_pads = ARRAY_SIZE(mmc0_pads),
 592                 .clkid = MXC_ESDHC_CLK,
 593                 .cfg = {
 594                         .esdhc_base = (void __iomem *)USDHC1_BASE_ADDR,
 595                         .max_bus_width = 4,
 596                 },
 597                 .cd_gpio = TX6UL_SD1_CD_GPIO,
 598         },
 599 };
 600
 601 static inline struct tx6ul_esdhc_cfg *to_tx6ul_esdhc_cfg(struct fsl_esdhc_cfg *cfg)
 602 {
 603         return container_of(cfg, struct tx6ul_esdhc_cfg, cfg);
 604 }
 605
 606 int board_mmc_getcd(struct mmc *mmc)
 607 {
 608         struct tx6ul_esdhc_cfg *cfg = to_tx6ul_esdhc_cfg(mmc->priv);
 609
 610         if (cfg->cd_gpio < 0)
 611                 return 1;
 612
 613         debug("SD card %d is %spresent (GPIO %d)\n",
 614                 cfg - tx6ul_esdhc_cfg,
 615                 gpio_get_value(cfg->cd_gpio) ? "NOT " : "",
 616                 cfg->cd_gpio);
 617         return !gpio_get_value(cfg->cd_gpio);
 618 }
 619
 620 int board_mmc_init(bd_t *bis)
 621 {
 622         int i;
 623
 624         debug("%s@%d: \n", __func__, __LINE__);
 625
 626 #ifndef CONFIG_ENV_IS_IN_MMC
 627         if (!(gd->flags & GD_FLG_ENV_READY)) {
 628                 printf("deferred ...");
 629                 return 0;
 630         }
 631 #endif
 632         for (i = 0; i < ARRAY_SIZE(tx6ul_esdhc_cfg); i++) {
 633                 struct mmc *mmc;
 634                 struct tx6ul_esdhc_cfg *cfg = &tx6ul_esdhc_cfg[i];
 635                 int ret;
 636
 637                 cfg->cfg.sdhc_clk = mxc_get_clock(cfg->clkid);
 638                 imx_iomux_v3_setup_multiple_pads(cfg->pads, cfg->num_pads);
 639
 640                 if (cfg->cd_gpio >= 0) {
 641                         ret = gpio_request_one(cfg->cd_gpio,
 642                                         GPIOFLAG_INPUT, "MMC CD");
 643                         if (ret) {
 644                                 printf("Error %d requesting GPIO%d_%d\n",
 645                                         ret, cfg->cd_gpio / 32, cfg->cd_gpio % 32);
 646                                 continue;
 647                         }
 648                 }
 649
 650                 debug("%s: Initializing MMC slot %d\n", __func__, i);
 651                 fsl_esdhc_initialize(bis, &cfg->cfg);
 652
 653                 mmc = find_mmc_device(i);
 654                 if (mmc == NULL)
 655                         continue;
 656                 if (board_mmc_getcd(mmc))
 657                         mmc_init(mmc);
 658         }
 659         return 0;
 660 }
 661 #endif /* CONFIG_FSL_ESDHC */
 662
 663 enum {
 664         LED_STATE_INIT = -1,
 665         LED_STATE_OFF,
 666         LED_STATE_ON,
 667         LED_STATE_ERR,
 668 };
 669
 670 static inline int calc_blink_rate(void)
 671 {
 672         if (!tx6ul_temp_check_enabled)
 673                 return CONFIG_SYS_HZ;
 674
 675         return CONFIG_SYS_HZ + CONFIG_SYS_HZ / 10 -
 676                 (check_cpu_temperature(0) - TEMPERATURE_MIN) * CONFIG_SYS_HZ /
 677                 (TEMPERATURE_HOT - TEMPERATURE_MIN);
 678 }
 679
 680 void show_activity(int arg)
 681 {
 682         static int led_state = LED_STATE_INIT;
 683         static int blink_rate;
 684         static ulong last;
 685         int ret;
 686
 687         switch (led_state) {
 688         case LED_STATE_ERR:
 689                 return;
 690
 691         case LED_STATE_INIT:
 692                 last = get_timer(0);
 693                 ret = gpio_set_value(TX6UL_LED_GPIO, 1);
 694                 if (ret)
 695                         led_state = LED_STATE_ERR;
 696                 else
 697                         led_state = LED_STATE_ON;
 698                 blink_rate = calc_blink_rate();
 699                 break;
 700
 701         case LED_STATE_ON:
 702         case LED_STATE_OFF:
 703                 if (get_timer(last) > blink_rate) {
 704                         blink_rate = calc_blink_rate();
 705                         last = get_timer_masked();
 706                         if (led_state == LED_STATE_ON) {
 707                                 gpio_set_value(TX6UL_LED_GPIO, 0);
 708                         } else {
 709                                 gpio_set_value(TX6UL_LED_GPIO, 1);
 710                         }
 711                         led_state = 1 - led_state;
 712                 }
 713                 break;
 714         }
 715 }
 716
 717 static const iomux_v3_cfg_t stk5_jtag_pads[] = {
 718         MX6_PAD_JTAG_MOD__SJC_MOD | TX6UL_GPIO_IN_PAD_CTRL,
 719         MX6_PAD_JTAG_TCK__SJC_TCK | TX6UL_GPIO_IN_PAD_CTRL,
 720         MX6_PAD_JTAG_TRST_B__SJC_TRSTB | TX6UL_GPIO_IN_PAD_CTRL,
 721         MX6_PAD_JTAG_TDI__SJC_TDI | TX6UL_GPIO_IN_PAD_CTRL,
 722         MX6_PAD_JTAG_TDO__SJC_TDO | TX6UL_GPIO_OUT_PAD_CTRL,
 723         MX6_PAD_JTAG_TMS__SJC_TMS | TX6UL_GPIO_IN_PAD_CTRL,
 724 };
 725
 726 static const iomux_v3_cfg_t stk5_pads[] = {
 727         /* SW controlled LED on STK5 baseboard */
 728         MX6_PAD_SNVS_TAMPER9__GPIO5_IO09,
 729
 730         /* I2C bus on DIMM pins 40/41 */
 731         MX6_PAD_GPIO1_IO01__I2C2_SDA | MUX_MODE_SION | TX6UL_I2C_PAD_CTRL,
 732         MX6_PAD_GPIO1_IO00__I2C2_SCL | MUX_MODE_SION | TX6UL_I2C_PAD_CTRL,
 733
 734         /* TSC200x PEN IRQ */
 735         MX6_PAD_JTAG_TMS__GPIO1_IO11 | TX6UL_GPIO_IN_PAD_CTRL,
 736
 737         /* EDT-FT5x06 Polytouch panel */
 738         MX6_PAD_SNVS_TAMPER2__GPIO5_IO02 | TX6UL_GPIO_IN_PAD_CTRL, /* IRQ */
 739         MX6_PAD_SNVS_TAMPER3__GPIO5_IO03 | TX6UL_GPIO_OUT_PAD_CTRL, /* RESET */
 740         MX6_PAD_SNVS_TAMPER8__GPIO5_IO08 | TX6UL_GPIO_OUT_PAD_CTRL, /* WAKE */
 741
 742         /* USBH1 */
 743         MX6_PAD_GPIO1_IO02__USB_OTG2_PWR | TX6UL_GPIO_OUT_PAD_CTRL, /* VBUSEN */
 744         MX6_PAD_GPIO1_IO03__USB_OTG2_OC | TX6UL_GPIO_IN_PAD_CTRL, /* OC */
 745
 746         /* USBOTG */
 747         MX6_PAD_UART3_CTS_B__GPIO1_IO26 | TX6UL_GPIO_OUT_PAD_CTRL, /* VBUSEN */
 748         MX6_PAD_UART3_RTS_B__GPIO1_IO27 | TX6UL_GPIO_IN_PAD_CTRL, /* OC */
 749 };
 750
 751 static const struct gpio stk5_gpios[] = {
 752         { TX6UL_LED_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "HEARTBEAT LED", },
 753
 754         { IMX_GPIO_NR(1, 27), GPIOFLAG_INPUT, "USBOTG OC", },
 755         { IMX_GPIO_NR(1, 26), GPIOFLAG_OUTPUT_INIT_LOW, "USBOTG VBUS enable", },
 756 };
 757
 758 #ifdef CONFIG_LCD
 759 vidinfo_t panel_info = {
 760         /* set to max. size supported by SoC */
 761         .vl_col = 4096,
 762         .vl_row = 1024,
 763
 764         .vl_bpix = LCD_COLOR32,    /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
 765 };
 766
 767 static struct fb_videomode tx6ul_fb_modes[] = {
 768 #ifndef CONFIG_SYS_LVDS_IF
 769         {
 770                 /* Standard VGA timing */
 771                 .name           = "VGA",
 772                 .refresh        = 60,
 773                 .xres           = 640,
 774                 .yres           = 480,
 775                 .pixclock       = KHZ2PICOS(25175),
 776                 .left_margin    = 48,
 777                 .hsync_len      = 96,
 778                 .right_margin   = 16,
 779                 .upper_margin   = 31,
 780                 .vsync_len      = 2,
 781                 .lower_margin   = 12,
 782                 .sync           = FB_SYNC_CLK_LAT_FALL,
 783         },
 784         {
 785                 /* Emerging ETV570 640 x 480 display. Syncs low active,
 786                  * DE high active, 115.2 mm x 86.4 mm display area
 787                  * VGA compatible timing
 788                  */
 789                 .name           = "ETV570",
 790                 .refresh        = 60,
 791                 .xres           = 640,
 792                 .yres           = 480,
 793                 .pixclock       = KHZ2PICOS(25175),
 794                 .left_margin    = 114,
 795                 .hsync_len      = 30,
 796                 .right_margin   = 16,
 797                 .upper_margin   = 32,
 798                 .vsync_len      = 3,
 799                 .lower_margin   = 10,
 800                 .sync           = FB_SYNC_CLK_LAT_FALL,
 801         },
 802         {
 803                 /* Emerging ET0350G0DH6 320 x 240 display.
 804                  * 70.08 mm x 52.56 mm display area.
 805                  */
 806                 .name           = "ET0350",
 807                 .refresh        = 60,
 808                 .xres           = 320,
 809                 .yres           = 240,
 810                 .pixclock       = KHZ2PICOS(6500),
 811                 .left_margin    = 68 - 34,
 812                 .hsync_len      = 34,
 813                 .right_margin   = 20,
 814                 .upper_margin   = 18 - 3,
 815                 .vsync_len      = 3,
 816                 .lower_margin   = 4,
 817                 .sync           = FB_SYNC_CLK_LAT_FALL,
 818         },
 819         {
 820                 /* Emerging ET0430G0DH6 480 x 272 display.
 821                  * 95.04 mm x 53.856 mm display area.
 822                  */
 823                 .name           = "ET0430",
 824                 .refresh        = 60,
 825                 .xres           = 480,
 826                 .yres           = 272,
 827                 .pixclock       = KHZ2PICOS(9000),
 828                 .left_margin    = 2,
 829                 .hsync_len      = 41,
 830                 .right_margin   = 2,
 831                 .upper_margin   = 2,
 832                 .vsync_len      = 10,
 833                 .lower_margin   = 2,
 834         },
 835         {
 836                 /* Emerging ET0500G0DH6 800 x 480 display.
 837                  * 109.6 mm x 66.4 mm display area.
 838                  */
 839                 .name           = "ET0500",
 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 ETQ570G0DH6 320 x 240 display.
 854                  * 115.2 mm x 86.4 mm display area.
 855                  */
 856                 .name           = "ETQ570",
 857                 .refresh        = 60,
 858                 .xres           = 320,
 859                 .yres           = 240,
 860                 .pixclock       = KHZ2PICOS(6400),
 861                 .left_margin    = 38,
 862                 .hsync_len      = 30,
 863                 .right_margin   = 30,
 864                 .upper_margin   = 16, /* 15 according to datasheet */
 865                 .vsync_len      = 3, /* TVP -> 1>x>5 */
 866                 .lower_margin   = 4, /* 4.5 according to datasheet */
 867                 .sync           = FB_SYNC_CLK_LAT_FALL,
 868         },
 869         {
 870                 /* Emerging ET0700G0DH6 800 x 480 display.
 871                  * 152.4 mm x 91.44 mm display area.
 872                  */
 873                 .name           = "ET0700",
 874                 .refresh        = 60,
 875                 .xres           = 800,
 876                 .yres           = 480,
 877                 .pixclock       = KHZ2PICOS(33260),
 878                 .left_margin    = 216 - 128,
 879                 .hsync_len      = 128,
 880                 .right_margin   = 1056 - 800 - 216,
 881                 .upper_margin   = 35 - 2,
 882                 .vsync_len      = 2,
 883                 .lower_margin   = 525 - 480 - 35,
 884                 .sync           = FB_SYNC_CLK_LAT_FALL,
 885         },
 886         {
 887                 /* Emerging ET070001DM6 800 x 480 display.
 888                  * 152.4 mm x 91.44 mm display area.
 889                  */
 890                 .name           = "ET070001DM6",
 891                 .refresh        = 60,
 892                 .xres           = 800,
 893                 .yres           = 480,
 894                 .pixclock       = KHZ2PICOS(33260),
 895                 .left_margin    = 216 - 128,
 896                 .hsync_len      = 128,
 897                 .right_margin   = 1056 - 800 - 216,
 898                 .upper_margin   = 35 - 2,
 899                 .vsync_len      = 2,
 900                 .lower_margin   = 525 - 480 - 35,
 901                 .sync           = 0,
 902         },
 903 #else
 904         {
 905                 /* HannStar HSD100PXN1
 906                  * 202.7m mm x 152.06 mm display area.
 907                  */
 908                 .name           = "HSD100PXN1",
 909                 .refresh        = 60,
 910                 .xres           = 1024,
 911                 .yres           = 768,
 912                 .pixclock       = KHZ2PICOS(65000),
 913                 .left_margin    = 0,
 914                 .hsync_len      = 0,
 915                 .right_margin   = 320,
 916                 .upper_margin   = 0,
 917                 .vsync_len      = 0,
 918                 .lower_margin   = 38,
 919                 .sync           = FB_SYNC_CLK_LAT_FALL,
 920         },
 921 #endif
 922         {
 923                 /* unnamed entry for assigning parameters parsed from 'video_mode' string */
 924                 .refresh        = 60,
 925                 .left_margin    = 48,
 926                 .hsync_len      = 96,
 927                 .right_margin   = 16,
 928                 .upper_margin   = 31,
 929                 .vsync_len      = 2,
 930                 .lower_margin   = 12,
 931                 .sync           = FB_SYNC_CLK_LAT_FALL,
 932         },
 933 };
 934
 935 static int lcd_enabled = 1;
 936 static int lcd_bl_polarity;
 937
 938 static int lcd_backlight_polarity(void)
 939 {
 940         return lcd_bl_polarity;
 941 }
 942
 943 static const iomux_v3_cfg_t stk5_lcd_pads[] = {
 944 #ifdef CONFIG_LCD
 945         /* LCD RESET */
 946         MX6_PAD_LCD_RESET__GPIO3_IO04 | TX6UL_GPIO_OUT_PAD_CTRL,
 947         /* LCD POWER_ENABLE */
 948         MX6_PAD_SNVS_TAMPER4__GPIO5_IO04 | TX6UL_GPIO_OUT_PAD_CTRL,
 949         /* LCD Backlight (PWM) */
 950         MX6_PAD_NAND_DQS__GPIO4_IO16 | TX6UL_GPIO_OUT_PAD_CTRL,
 951         /* Display */
 952         MX6_PAD_LCD_DATA00__LCDIF_DATA00,
 953         MX6_PAD_LCD_DATA01__LCDIF_DATA01,
 954         MX6_PAD_LCD_DATA02__LCDIF_DATA02,
 955         MX6_PAD_LCD_DATA03__LCDIF_DATA03,
 956         MX6_PAD_LCD_DATA04__LCDIF_DATA04,
 957         MX6_PAD_LCD_DATA05__LCDIF_DATA05,
 958         MX6_PAD_LCD_DATA06__LCDIF_DATA06,
 959         MX6_PAD_LCD_DATA07__LCDIF_DATA07,
 960         MX6_PAD_LCD_DATA08__LCDIF_DATA08,
 961         MX6_PAD_LCD_DATA09__LCDIF_DATA09,
 962         MX6_PAD_LCD_DATA10__LCDIF_DATA10,
 963         MX6_PAD_LCD_DATA11__LCDIF_DATA11,
 964         MX6_PAD_LCD_DATA12__LCDIF_DATA12,
 965         MX6_PAD_LCD_DATA13__LCDIF_DATA13,
 966         MX6_PAD_LCD_DATA14__LCDIF_DATA14,
 967         MX6_PAD_LCD_DATA15__LCDIF_DATA15,
 968         MX6_PAD_LCD_DATA16__LCDIF_DATA16,
 969         MX6_PAD_LCD_DATA17__LCDIF_DATA17,
 970         MX6_PAD_LCD_DATA18__LCDIF_DATA18,
 971         MX6_PAD_LCD_DATA19__LCDIF_DATA19,
 972         MX6_PAD_LCD_DATA20__LCDIF_DATA20,
 973         MX6_PAD_LCD_DATA21__LCDIF_DATA21,
 974         MX6_PAD_LCD_DATA22__LCDIF_DATA22,
 975         MX6_PAD_LCD_DATA23__LCDIF_DATA23,
 976         MX6_PAD_LCD_HSYNC__LCDIF_HSYNC, /* HSYNC */
 977         MX6_PAD_LCD_VSYNC__LCDIF_VSYNC, /* VSYNC */
 978         MX6_PAD_LCD_ENABLE__LCDIF_ENABLE, /* OE_ACD */
 979         MX6_PAD_LCD_CLK__LCDIF_CLK, /* LSCLK */
 980 #endif
 981 };
 982
 983 static const struct gpio stk5_lcd_gpios[] = {
 984         { TX6UL_LCD_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "LCD RESET", },
 985         { TX6UL_LCD_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "LCD POWER", },
 986         { TX6UL_LCD_BACKLIGHT_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "LCD BACKLIGHT", },
 987 };
 988
 989 /* run with valid env from NAND/eMMC */
 990 void lcd_enable(void)
 991 {
 992         /* HACK ALERT:
 993          * global variable from common/lcd.c
 994          * Set to 0 here to prevent messages from going to LCD
 995          * rather than serial console
 996          */
 997         lcd_is_enabled = 0;
 998
 999         if (lcd_enabled) {
1000                 karo_load_splashimage(1);
1001
1002                 debug("Switching LCD on\n");
1003                 gpio_set_value(TX6UL_LCD_PWR_GPIO, 1);
1004                 udelay(100);
1005                 gpio_set_value(TX6UL_LCD_RST_GPIO, 1);
1006                 udelay(300000);
1007                 gpio_set_value(TX6UL_LCD_BACKLIGHT_GPIO,
1008                         lcd_backlight_polarity());
1009         }
1010 }
1011
1012 static void lcd_disable(void)
1013 {
1014         if (lcd_enabled) {
1015                 printf("Disabling LCD\n");
1016                 panel_info.vl_row = 0;
1017                 lcd_enabled = 0;
1018         }
1019 }
1020
1021 void lcd_ctrl_init(void *lcdbase)
1022 {
1023         int color_depth = 24;
1024         const char *video_mode = karo_get_vmode(getenv("video_mode"));
1025         const char *vm;
1026         unsigned long val;
1027         int refresh = 60;
1028         struct fb_videomode *p = &tx6ul_fb_modes[0];
1029         struct fb_videomode fb_mode;
1030         int xres_set = 0, yres_set = 0, bpp_set = 0, refresh_set = 0;
1031
1032         if (!lcd_enabled) {
1033                 debug("LCD disabled\n");
1034                 return;
1035         }
1036
1037         if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
1038                 lcd_disable();
1039                 setenv("splashimage", NULL);
1040                 return;
1041         }
1042
1043         karo_fdt_move_fdt();
1044         lcd_bl_polarity = karo_fdt_get_backlight_polarity(working_fdt);
1045
1046         if (video_mode == NULL) {
1047                 lcd_disable();
1048                 return;
1049         }
1050         vm = video_mode;
1051         if (karo_fdt_get_fb_mode(working_fdt, video_mode, &fb_mode) == 0) {
1052                 p = &fb_mode;
1053                 debug("Using video mode from FDT\n");
1054                 vm += strlen(vm);
1055                 if (fb_mode.xres > panel_info.vl_col ||
1056                         fb_mode.yres > panel_info.vl_row) {
1057                         printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
1058                                 fb_mode.xres, fb_mode.yres,
1059                                 panel_info.vl_col, panel_info.vl_row);
1060                         lcd_enabled = 0;
1061                         return;
1062                 }
1063         }
1064         if (p->name != NULL)
1065                 debug("Trying compiled-in video modes\n");
1066         while (p->name != NULL) {
1067                 if (strcmp(p->name, vm) == 0) {
1068                         debug("Using video mode: '%s'\n", p->name);
1069                         vm += strlen(vm);
1070                         break;
1071                 }
1072                 p++;
1073         }
1074         if (*vm != '\0')
1075                 debug("Trying to decode video_mode: '%s'\n", vm);
1076         while (*vm != '\0') {
1077                 if (*vm >= '0' && *vm <= '9') {
1078                         char *end;
1079
1080                         val = simple_strtoul(vm, &end, 0);
1081                         if (end > vm) {
1082                                 if (!xres_set) {
1083                                         if (val > panel_info.vl_col)
1084                                                 val = panel_info.vl_col;
1085                                         p->xres = val;
1086                                         panel_info.vl_col = val;
1087                                         xres_set = 1;
1088                                 } else if (!yres_set) {
1089                                         if (val > panel_info.vl_row)
1090                                                 val = panel_info.vl_row;
1091                                         p->yres = val;
1092                                         panel_info.vl_row = val;
1093                                         yres_set = 1;
1094                                 } else if (!bpp_set) {
1095                                         switch (val) {
1096                                         case 8:
1097                                         case 16:
1098                                         case 18:
1099                                         case 24:
1100                                         case 32:
1101                                                 color_depth = val;
1102                                                 break;
1103
1104                                         default:
1105                                                 printf("Invalid color depth: '%.*s' in video_mode; using default: '%u'\n",
1106                                                         end - vm, vm, color_depth);
1107                                         }
1108                                         bpp_set = 1;
1109                                 } else if (!refresh_set) {
1110                                         refresh = val;
1111                                         refresh_set = 1;
1112                                 }
1113                         }
1114                         vm = end;
1115                 }
1116                 switch (*vm) {
1117                 case '@':
1118                         bpp_set = 1;
1119                         /* fallthru */
1120                 case '-':
1121                         yres_set = 1;
1122                         /* fallthru */
1123                 case 'x':
1124                         xres_set = 1;
1125                         /* fallthru */
1126                 case 'M':
1127                 case 'R':
1128                         vm++;
1129                         break;
1130
1131                 default:
1132                         if (*vm != '\0')
1133                                 vm++;
1134                 }
1135         }
1136         if (p->xres == 0 || p->yres == 0) {
1137                 printf("Invalid video mode: %s\n", getenv("video_mode"));
1138                 lcd_enabled = 0;
1139                 printf("Supported video modes are:");
1140                 for (p = &tx6ul_fb_modes[0]; p->name != NULL; p++) {
1141                         printf(" %s", p->name);
1142                 }
1143                 printf("\n");
1144                 return;
1145         }
1146         if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
1147                 printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
1148                         p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
1149                 lcd_enabled = 0;
1150                 return;
1151         }
1152         panel_info.vl_col = p->xres;
1153         panel_info.vl_row = p->yres;
1154
1155         switch (color_depth) {
1156         case 8:
1157                 panel_info.vl_bpix = LCD_COLOR8;
1158                 break;
1159         case 16:
1160                 panel_info.vl_bpix = LCD_COLOR16;
1161                 break;
1162         default:
1163                 panel_info.vl_bpix = LCD_COLOR32;
1164         }
1165
1166         p->pixclock = KHZ2PICOS(refresh *
1167                 (p->xres + p->left_margin + p->right_margin + p->hsync_len) *
1168                 (p->yres + p->upper_margin + p->lower_margin + p->vsync_len) /
1169                                 1000);
1170         debug("Pixel clock set to %lu.%03lu MHz\n",
1171                 PICOS2KHZ(p->pixclock) / 1000, PICOS2KHZ(p->pixclock) % 1000);
1172
1173         if (p != &fb_mode) {
1174                 int ret;
1175
1176                 debug("Creating new display-timing node from '%s'\n",
1177                         video_mode);
1178                 ret = karo_fdt_create_fb_mode(working_fdt, video_mode, p);
1179                 if (ret)
1180                         printf("Failed to create new display-timing node from '%s': %d\n",
1181                                 video_mode, ret);
1182         }
1183
1184         gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
1185         imx_iomux_v3_setup_multiple_pads(stk5_lcd_pads,
1186                                         ARRAY_SIZE(stk5_lcd_pads));
1187
1188         debug("video format: %ux%u-%u@%u\n", p->xres, p->yres,
1189                 color_depth, refresh);
1190
1191         if (karo_load_splashimage(0) == 0) {
1192                 char vmode[128];
1193
1194                 /* setup env variable for mxsfb display driver */
1195                 snprintf(vmode, sizeof(vmode),
1196                         "x:%d,y:%d,le:%d,ri:%d,up:%d,lo:%d,hs:%d,vs:%d,sync:%d,pclk:%d,depth:%d",
1197                         p->xres, p->yres, p->left_margin, p->right_margin,
1198                         p->upper_margin, p->lower_margin, p->hsync_len,
1199                         p->vsync_len, p->sync, p->pixclock, color_depth);
1200                 setenv("videomode", vmode);
1201
1202                 debug("Initializing LCD controller\n");
1203                 lcdif_clk_enable();
1204                 video_hw_init();
1205                 setenv("videomode", NULL);
1206         } else {
1207                 debug("Skipping initialization of LCD controller\n");
1208         }
1209 }
1210 #else
1211 #define lcd_enabled 0
1212 #endif /* CONFIG_LCD */
1213
1214 #ifndef CONFIG_ENV_IS_IN_MMC
1215 static void tx6ul_mmc_init(void)
1216 {
1217         puts("MMC:   ");
1218         if (board_mmc_init(gd->bd) < 0)
1219                 cpu_mmc_init(gd->bd);
1220         print_mmc_devices(',');
1221 }
1222 #else
1223 static inline void tx6ul_mmc_init(void)
1224 {
1225 }
1226 #endif
1227
1228 static void stk5_board_init(void)
1229 {
1230         int ret;
1231
1232         ret = gpio_request_array(stk5_gpios, ARRAY_SIZE(stk5_gpios));
1233         if (ret < 0) {
1234                 printf("Failed to request stk5_gpios: %d\n", ret);
1235                 return;
1236         }
1237         imx_iomux_v3_setup_multiple_pads(stk5_pads, ARRAY_SIZE(stk5_pads));
1238         if (getenv_yesno("jtag_enable") != 0) {
1239                 /* true if unset or set to one of: 'yYtT1' */
1240                 imx_iomux_v3_setup_multiple_pads(stk5_jtag_pads, ARRAY_SIZE(stk5_jtag_pads));
1241         }
1242         debug("%s@%d: \n", __func__, __LINE__);
1243 }
1244
1245 static void stk5v3_board_init(void)
1246 {
1247         debug("%s@%d: \n", __func__, __LINE__);
1248         stk5_board_init();
1249         debug("%s@%d: \n", __func__, __LINE__);
1250         tx6ul_mmc_init();
1251 }
1252
1253 static void stk5v5_board_init(void)
1254 {
1255         int ret;
1256
1257         stk5_board_init();
1258         tx6ul_mmc_init();
1259
1260         ret = gpio_request_one(IMX_GPIO_NR(3, 5), GPIOFLAG_OUTPUT_INIT_HIGH,
1261                         "Flexcan Transceiver");
1262         if (ret) {
1263                 printf("Failed to request Flexcan Transceiver GPIO: %d\n", ret);
1264                 return;
1265         }
1266
1267         imx_iomux_v3_setup_pad(MX6_PAD_LCD_DATA00__GPIO3_IO05 |
1268                         TX6UL_GPIO_OUT_PAD_CTRL);
1269 }
1270
1271 static void tx6ul_set_cpu_clock(void)
1272 {
1273         unsigned long cpu_clk = getenv_ulong("cpu_clk", 10, 0);
1274
1275         if (cpu_clk == 0 || cpu_clk == mxc_get_clock(MXC_ARM_CLK) / 1000000)
1276                 return;
1277
1278         if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
1279                 printf("%s detected; skipping cpu clock change\n",
1280                         (wrsr & WRSR_TOUT) ? "WDOG RESET" : "<CTRL-C>");
1281                 return;
1282         }
1283         if (mxc_set_clock(CONFIG_SYS_MX6_HCLK, cpu_clk, MXC_ARM_CLK) == 0) {
1284                 cpu_clk = mxc_get_clock(MXC_ARM_CLK);
1285                 printf("CPU clock set to %lu.%03lu MHz\n",
1286                         cpu_clk / 1000000, cpu_clk / 1000 % 1000);
1287         } else {
1288                 printf("Error: Failed to set CPU clock to %lu MHz\n", cpu_clk);
1289         }
1290 }
1291
1292 int board_late_init(void)
1293 {
1294         const char *baseboard;
1295
1296         debug("%s@%d: \n", __func__, __LINE__);
1297
1298         env_cleanup();
1299
1300         if (tx6ul_temp_check_enabled)
1301                 check_cpu_temperature(1);
1302
1303         tx6ul_set_cpu_clock();
1304
1305         if (had_ctrlc())
1306                 setenv_ulong("safeboot", 1);
1307         else if (wrsr & WRSR_TOUT)
1308                 setenv_ulong("wdreset", 1);
1309         else
1310                 karo_fdt_move_fdt();
1311
1312         baseboard = getenv("baseboard");
1313         if (!baseboard)
1314                 goto exit;
1315
1316         printf("Baseboard: %s\n", baseboard);
1317
1318         if (strncmp(baseboard, "stk5", 4) == 0) {
1319                 if ((strlen(baseboard) == 4) ||
1320                         strcmp(baseboard, "stk5-v3") == 0) {
1321                         stk5v3_board_init();
1322                 } else if (strcmp(baseboard, "stk5-v5") == 0) {
1323                         const char *otg_mode = getenv("otg_mode");
1324
1325                         if (otg_mode && strcmp(otg_mode, "host") == 0) {
1326                                 printf("otg_mode='%s' is incompatible with baseboard %s; setting to 'none'\n",
1327                                         otg_mode, baseboard);
1328                                 setenv("otg_mode", "none");
1329                         }
1330                         stk5v5_board_init();
1331                 } else {
1332                         printf("WARNING: Unsupported STK5 board rev.: %s\n",
1333                                 baseboard + 4);
1334                 }
1335         } else if (strncmp(baseboard, "ulmb-", 5) == 0) {
1336                         const char *otg_mode = getenv("otg_mode");
1337
1338                         if (otg_mode && strcmp(otg_mode, "host") == 0) {
1339                                 printf("otg_mode='%s' is incompatible with baseboard %s; setting to 'none'\n",
1340                                         otg_mode, baseboard);
1341                                 setenv("otg_mode", "none");
1342                         }
1343                         stk5_board_init();
1344         } else {
1345                 printf("WARNING: Unsupported baseboard: '%s'\n",
1346                         baseboard);
1347                 if (!had_ctrlc())
1348                         return -EINVAL;
1349         }
1350
1351 exit:
1352         debug("%s@%d: \n", __func__, __LINE__);
1353
1354         clear_ctrlc();
1355         return 0;
1356 }
1357
1358 #ifdef CONFIG_FEC_MXC
1359
1360 #ifndef ETH_ALEN
1361 #define ETH_ALEN 6
1362 #endif
1363
1364 static void tx6ul_init_mac(void)
1365 {
1366         u8 mac[ETH_ALEN];
1367         const char *baseboard = getenv("baseboard");
1368
1369         imx_get_mac_from_fuse(0, mac);
1370         if (!is_valid_ethaddr(mac)) {
1371                 printf("No valid MAC address programmed\n");
1372                 return;
1373         }
1374         printf("MAC addr from fuse: %pM\n", mac);
1375         if (!getenv("ethaddr"))
1376                 eth_setenv_enetaddr("ethaddr", mac);
1377
1378         if (!baseboard || strncmp(baseboard, "stk5", 4) == 0) {
1379                 setenv("eth1addr", NULL);
1380                 return;
1381         }
1382         if (getenv("eth1addr"))
1383                 return;
1384         imx_get_mac_from_fuse(1, mac);
1385         eth_setenv_enetaddr("eth1addr", mac);
1386 }
1387
1388 int board_eth_init(bd_t *bis)
1389 {
1390         int ret;
1391
1392         tx6ul_init_mac();
1393
1394         /* delay at least 21ms for the PHY internal POR signal to deassert */
1395         udelay(22000);
1396
1397         imx_iomux_v3_setup_multiple_pads(tx6ul_enet1_pads,
1398                                         ARRAY_SIZE(tx6ul_enet1_pads));
1399
1400         /* Deassert RESET to the external phys */
1401         gpio_set_value(TX6UL_FEC_RST_GPIO, 1);
1402
1403         if (getenv("ethaddr")) {
1404                 ret = fecmxc_initialize_multi(bis, 0, 0, ENET_BASE_ADDR);
1405                 if (ret) {
1406                         printf("failed to initialize FEC0: %d\n", ret);
1407                         return ret;
1408                 }
1409         }
1410         if (getenv("eth1addr")) {
1411                 ret = gpio_request_array(tx6ul_fec2_gpios,
1412                                         ARRAY_SIZE(tx6ul_fec2_gpios));
1413                 if (ret < 0) {
1414                         printf("Failed to request tx6ul_fec2_gpios: %d\n", ret);
1415                 }
1416                 imx_iomux_v3_setup_multiple_pads(tx6ul_enet2_pads,
1417                                                 ARRAY_SIZE(tx6ul_enet2_pads));
1418
1419                 writel(0x00100000, 0x020c80e4); /* assert ENET2_125M_EN */
1420
1421                 /* Minimum PHY reset duration */
1422                 udelay(100);
1423                 gpio_set_value(TX6UL_FEC2_RST_GPIO, 1);
1424                 /* Wait for PHY internal POR to finish */
1425                 udelay(22000);
1426
1427                 ret = fecmxc_initialize_multi(bis, 1, 2, ENET2_BASE_ADDR);
1428                 if (ret) {
1429                         printf("failed to initialize FEC1: %d\n", ret);
1430                         return ret;
1431                 }
1432         }
1433         return 0;
1434 }
1435 #endif /* CONFIG_FEC_MXC */
1436
1437 #ifdef CONFIG_SERIAL_TAG
1438 void get_board_serial(struct tag_serialnr *serialnr)
1439 {
1440         struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
1441         struct fuse_bank0_regs *fuse = (void *)ocotp->bank[0].fuse_regs;
1442
1443         serialnr->low = readl(&fuse->cfg0);
1444         serialnr->high = readl(&fuse->cfg1);
1445 }
1446 #endif
1447
1448 #if defined(CONFIG_OF_BOARD_SETUP)
1449 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
1450 #include <jffs2/jffs2.h>
1451 #include <mtd_node.h>
1452 static struct node_info nodes[] = {
1453         { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, },
1454 };
1455 #else
1456 #define fdt_fixup_mtdparts(b,n,c) do { } while (0)
1457 #endif
1458
1459 static const char *tx6ul_touchpanels[] = {
1460         "ti,tsc2007",
1461         "edt,edt-ft5x06",
1462         "eeti,egalax_ts",
1463 };
1464
1465 int ft_board_setup(void *blob, bd_t *bd)
1466 {
1467         const char *baseboard = getenv("baseboard");
1468         int stk5_v5 = baseboard != NULL && (strcmp(baseboard, "stk5-v5") == 0);
1469         const char *video_mode = karo_get_vmode(getenv("video_mode"));
1470         int ret;
1471
1472         ret = fdt_increase_size(blob, 4096);
1473         if (ret) {
1474                 printf("Failed to increase FDT size: %s\n", fdt_strerror(ret));
1475                 return ret;
1476         }
1477         if (stk5_v5)
1478                 karo_fdt_enable_node(blob, "stk5led", 0);
1479
1480         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
1481
1482         karo_fdt_fixup_touchpanel(blob, tx6ul_touchpanels,
1483                                 ARRAY_SIZE(tx6ul_touchpanels));
1484         karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy", "vbus-supply");
1485         karo_fdt_fixup_flexcan(blob, stk5_v5);
1486
1487         karo_fdt_update_fb_mode(blob, video_mode);
1488
1489         return 0;
1490 }
1491 #endif /* CONFIG_OF_BOARD_SETUP */