]> git.kernelconcepts.de Git - karo-tx-uboot.git/blobdiff - board/karo/tx6/tx6qdl.c
karo: tx6: cleanup i2c_recover implementation
[karo-tx-uboot.git] / board / karo / tx6 / tx6qdl.c
index 04a9222361f234f8599becd01b2722281cc17759..7b2cd5371fe3288c98195808d042e127f8bc01f9 100644 (file)
@@ -1,17 +1,7 @@
 /*
  * Copyright (C) 2012-2015 Lothar Waßmann <LW@KARO-electronics.de>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ * SPDX-License-Identifier:     GPL-2.0+
  *
  */
 #include <common.h>
@@ -51,6 +41,8 @@
 #define TX6_LCD_BACKLIGHT_GPIO         IMX_GPIO_NR(1, 1)
 
 #define TX6_RESET_OUT_GPIO             IMX_GPIO_NR(7, 12)
+#define TX6_I2C1_SCL_GPIO              IMX_GPIO_NR(3, 21)
+#define TX6_I2C1_SDA_GPIO              IMX_GPIO_NR(3, 28)
 
 #ifdef CONFIG_MX6_TEMPERATURE_MIN
 #define TEMPERATURE_MIN                        CONFIG_MX6_TEMPERATURE_MIN
@@ -67,76 +59,192 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define MUX_CFG_SION                   IOMUX_PAD(0, 0, IOMUX_CONFIG_SION, 0, 0, 0)
 
-enum {
-       MX6_PAD_DECL(GARBAGE, 0, 0, 0, 0, 0, 0)
-};
-
 char __uboot_img_end[0] __attribute__((section(".__uboot_img_end")));
 #ifdef CONFIG_SECURE_BOOT
 char __csf_data[0] __attribute__((section(".__csf_data")));
 #endif
 
+#define TX6_DEFAULT_PAD_CTRL   MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |      \
+                                       PAD_CTL_SPEED_MED |             \
+                                       PAD_CTL_DSE_40ohm |             \
+                                       PAD_CTL_SRE_FAST)
+#define TX6_FEC_PAD_CTRL       MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP |      \
+                                       PAD_CTL_SPEED_MED |             \
+                                       PAD_CTL_DSE_40ohm |             \
+                                       PAD_CTL_SRE_FAST)
+#define TX6_GPIO_PAD_CTRL      MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |       \
+                                       PAD_CTL_SPEED_MED |             \
+                                       PAD_CTL_DSE_34ohm |             \
+                                       PAD_CTL_SRE_FAST)
+#define TX6_I2C_PAD_CTRL       MUX_PAD_CTRL(PAD_CTL_PUS_22K_UP |       \
+                                       PAD_CTL_HYS |                   \
+                                       PAD_CTL_SPEED_LOW |             \
+                                       PAD_CTL_DSE_40ohm |             \
+                                       PAD_CTL_SRE_SLOW)
+
 static const iomux_v3_cfg_t const tx6qdl_pads[] = {
        /* RESET_OUT */
-       MX6_PAD_GPIO_17__GPIO7_IO12,
+       MX6_PAD_GPIO_17__GPIO7_IO12 | TX6_DEFAULT_PAD_CTRL,
 
        /* UART pads */
 #if CONFIG_MXC_UART_BASE == UART1_BASE
-       MX6_PAD_SD3_DAT7__UART1_TX_DATA,
-       MX6_PAD_SD3_DAT6__UART1_RX_DATA,
-       MX6_PAD_SD3_DAT1__UART1_RTS_B,
-       MX6_PAD_SD3_DAT0__UART1_CTS_B,
+       MX6_PAD_SD3_DAT7__UART1_TX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD3_DAT6__UART1_RX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD3_DAT1__UART1_RTS_B | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD3_DAT0__UART1_CTS_B | TX6_DEFAULT_PAD_CTRL,
 #endif
 #if CONFIG_MXC_UART_BASE == UART2_BASE
-       MX6_PAD_SD4_DAT4__UART2_RX_DATA,
-       MX6_PAD_SD4_DAT7__UART2_TX_DATA,
-       MX6_PAD_SD4_DAT5__UART2_RTS_B,
-       MX6_PAD_SD4_DAT6__UART2_CTS_B,
+       MX6_PAD_SD4_DAT4__UART2_RX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD4_DAT7__UART2_TX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD4_DAT5__UART2_RTS_B | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD4_DAT6__UART2_CTS_B | TX6_DEFAULT_PAD_CTRL,
 #endif
 #if CONFIG_MXC_UART_BASE == UART3_BASE
-       MX6_PAD_EIM_D24__UART3_TX_DATA,
-       MX6_PAD_EIM_D25__UART3_RX_DATA,
-       MX6_PAD_SD3_RST__UART3_RTS_B,
-       MX6_PAD_SD3_DAT3__UART3_CTS_B,
+       MX6_PAD_EIM_D24__UART3_TX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_EIM_D25__UART3_RX_DATA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD3_RST__UART3_RTS_B | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_SD3_DAT3__UART3_CTS_B | TX6_DEFAULT_PAD_CTRL,
 #endif
        /* internal I2C */
-       MX6_PAD_EIM_D28__I2C1_SDA,
-       MX6_PAD_EIM_D21__I2C1_SCL,
+       MX6_PAD_EIM_D28__I2C1_SDA | TX6_DEFAULT_PAD_CTRL,
+       MX6_PAD_EIM_D21__I2C1_SCL | TX6_DEFAULT_PAD_CTRL,
 
        /* FEC PHY GPIO functions */
-       MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_CFG_SION, /* PHY POWER */
-       MX6_PAD_SD3_DAT2__GPIO7_IO06 | MUX_CFG_SION, /* PHY RESET */
-       MX6_PAD_SD3_DAT4__GPIO7_IO01, /* PHY INT */
+       MX6_PAD_EIM_D20__GPIO3_IO20 | MUX_CFG_SION |
+                       TX6_DEFAULT_PAD_CTRL, /* PHY POWER */
+       MX6_PAD_SD3_DAT2__GPIO7_IO06 | MUX_CFG_SION |
+                       TX6_DEFAULT_PAD_CTRL, /* PHY RESET */
+       MX6_PAD_SD3_DAT4__GPIO7_IO01 | TX6_DEFAULT_PAD_CTRL, /* PHY INT */
 };
 
 static const iomux_v3_cfg_t const tx6qdl_fec_pads[] = {
        /* FEC functions */
-       MX6_PAD_ENET_MDC__ENET_MDC,
-       MX6_PAD_ENET_MDIO__ENET_MDIO,
-       MX6_PAD_GPIO_16__ENET_REF_CLK,
-       MX6_PAD_ENET_RX_ER__ENET_RX_ER,
-       MX6_PAD_ENET_CRS_DV__ENET_RX_EN,
-       MX6_PAD_ENET_RXD1__ENET_RX_DATA1,
-       MX6_PAD_ENET_RXD0__ENET_RX_DATA0,
-       MX6_PAD_ENET_TX_EN__ENET_TX_EN,
-       MX6_PAD_ENET_TXD1__ENET_TX_DATA1,
-       MX6_PAD_ENET_TXD0__ENET_TX_DATA0,
+       MX6_PAD_ENET_MDC__ENET_MDC | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_MDIO__ENET_MDIO | TX6_FEC_PAD_CTRL,
+       MX6_PAD_GPIO_16__ENET_REF_CLK | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_RX_ER__ENET_RX_ER | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_CRS_DV__ENET_RX_EN | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_TX_EN__ENET_TX_EN | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | TX6_FEC_PAD_CTRL,
+       MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | TX6_FEC_PAD_CTRL,
+};
+
+static const iomux_v3_cfg_t const tx6_i2c_gpio_pads[] = {
+       /* internal I2C */
+       MX6_PAD_EIM_D28__GPIO3_IO28 | MUX_CFG_SION |
+                       TX6_GPIO_PAD_CTRL,
+       MX6_PAD_EIM_D21__GPIO3_IO21 | MUX_CFG_SION |
+                       TX6_GPIO_PAD_CTRL,
+};
+
+static const iomux_v3_cfg_t const tx6_i2c_pads[] = {
+       /* internal I2C */
+       MX6_PAD_EIM_D28__I2C1_SDA | TX6_I2C_PAD_CTRL,
+       MX6_PAD_EIM_D21__I2C1_SCL | TX6_I2C_PAD_CTRL,
 };
 
 static const struct gpio const tx6qdl_gpios[] = {
+       /* These two entries are used to forcefully reinitialize the I2C bus */
+       { TX6_I2C1_SCL_GPIO, GPIOFLAG_INPUT, "I2C1 SCL", },
+       { TX6_I2C1_SDA_GPIO, GPIOFLAG_INPUT, "I2C1 SDA", },
+
        { TX6_RESET_OUT_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "#RESET_OUT", },
        { TX6_FEC_PWR_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
        { TX6_FEC_RST_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "FEC PHY RESET", },
        { TX6_FEC_INT_GPIO, GPIOFLAG_INPUT, "FEC PHY INT", },
 };
 
-/*
- * Functions
- */
+static int pmic_addr __data;
+
+#if defined(TX6_I2C1_SCL_GPIO) && defined(TX6_I2C1_SDA_GPIO)
+#define SCL_BANK       (TX6_I2C1_SCL_GPIO / 32)
+#define SDA_BANK       (TX6_I2C1_SDA_GPIO / 32)
+#define SCL_BIT                (1 << (TX6_I2C1_SCL_GPIO % 32))
+#define SDA_BIT                (1 << (TX6_I2C1_SDA_GPIO % 32))
+
+static void * const gpio_ports[] = {
+       (void *)GPIO1_BASE_ADDR,
+       (void *)GPIO2_BASE_ADDR,
+       (void *)GPIO3_BASE_ADDR,
+       (void *)GPIO4_BASE_ADDR,
+       (void *)GPIO5_BASE_ADDR,
+       (void *)GPIO6_BASE_ADDR,
+       (void *)GPIO7_BASE_ADDR,
+};
+
+static void tx6_i2c_recover(void)
+{
+       int i;
+       int bad = 0;
+       struct gpio_regs *scl_regs = gpio_ports[SCL_BANK];
+       struct gpio_regs *sda_regs = gpio_ports[SDA_BANK];
+
+       if ((readl(&scl_regs->gpio_psr) & SCL_BIT) &&
+           (readl(&sda_regs->gpio_psr) & SDA_BIT))
+               return;
+
+       debug("Clearing I2C bus\n");
+       if (!(readl(&scl_regs->gpio_psr) & SCL_BIT)) {
+               printf("I2C SCL stuck LOW\n");
+               bad++;
+
+               setbits_le32(&scl_regs->gpio_dr, SCL_BIT);
+               setbits_le32(&scl_regs->gpio_dir, SCL_BIT);
+
+               imx_iomux_v3_setup_multiple_pads(tx6_i2c_gpio_pads,
+                                                ARRAY_SIZE(tx6_i2c_gpio_pads));
+       }
+       if (!(readl(&sda_regs->gpio_psr) & SDA_BIT)) {
+               printf("I2C SDA stuck LOW\n");
+
+               clrbits_le32(&sda_regs->gpio_dir, SDA_BIT);
+               setbits_le32(&scl_regs->gpio_dr, SCL_BIT);
+               setbits_le32(&scl_regs->gpio_dir, SCL_BIT);
+
+               if (!bad++)
+                       imx_iomux_v3_setup_multiple_pads(tx6_i2c_gpio_pads,
+                                                        ARRAY_SIZE(tx6_i2c_gpio_pads));
+
+               udelay(10);
+
+               for (i = 0; i < 18; i++) {
+                       u32 reg = readl(&scl_regs->gpio_dr) ^ SCL_BIT;
+
+                       debug("%sing SCL\n",
+                             (reg & SCL_BIT) ? "Sett" : "Clear");
+                       writel(reg, &scl_regs->gpio_dr);
+                       udelay(5);
+                       if (reg & SCL_BIT) {
+                               if (readl(&sda_regs->gpio_psr) & SDA_BIT)
+                                       break;
+                               if (!(readl(&scl_regs->gpio_psr) & SCL_BIT))
+                                       break;
+                               break;
+                       }
+               }
+       }
+       if (bad) {
+               bool scl = !!(readl(&scl_regs->gpio_psr) & SCL_BIT);
+               bool sda = !!(readl(&sda_regs->gpio_psr) & SDA_BIT);
+
+               if (scl && sda) {
+                       printf("I2C bus recovery succeeded\n");
+               } else {
+                       printf("I2C bus recovery FAILED: SCL: %d SDA: %d\n",
+                              scl, sda);
+               }
+               imx_iomux_v3_setup_multiple_pads(tx6_i2c_pads,
+                                                ARRAY_SIZE(tx6_i2c_pads));
+       }
+}
+#endif
+
 /* placed in section '.data' to prevent overwriting relocation info
  * overlayed with bss
  */
-static u32 wrsr __attribute__((section(".data")));
+static u32 wrsr __data;
 
 #define WRSR_POR                       (1 << 4)
 #define WRSR_TOUT                      (1 << 1)
@@ -196,42 +304,95 @@ static void print_reset_cause(void)
 
 static const char __data *tx6_mod_suffix;
 
-static void tx6qdl_print_cpuinfo(void)
+#ifdef CONFIG_IMX6_THERMAL
+#include <thermal.h>
+#include <imx_thermal.h>
+#include <fuse.h>
+
+static void print_temperature(void)
+{
+       struct udevice *thermal_dev;
+       int cpu_tmp, minc, maxc, ret;
+       char const *grade_str;
+       static u32 __data thermal_calib;
+
+       puts("Temperature: ");
+       switch (get_cpu_temp_grade(&minc, &maxc)) {
+       case TEMP_AUTOMOTIVE:
+               grade_str = "Automotive";
+               break;
+       case TEMP_INDUSTRIAL:
+               grade_str = "Industrial";
+               break;
+       case TEMP_EXTCOMMERCIAL:
+               grade_str = "Extended Commercial";
+               break;
+       default:
+               grade_str = "Commercial";
+       }
+       printf("%s grade (%dC to %dC)", grade_str, minc, maxc);
+       ret = uclass_get_device(UCLASS_THERMAL, 0, &thermal_dev);
+       if (ret == 0) {
+               ret = thermal_get_temp(thermal_dev, &cpu_tmp);
+
+               if (ret == 0)
+                       printf(" at %dC", cpu_tmp);
+               else
+                       puts(" - failed to read sensor data");
+       } else {
+               puts(" - no sensor device found");
+       }
+
+       if (fuse_read(1, 6, &thermal_calib) == 0) {
+               printf(" - calibration data 0x%08x\n", thermal_calib);
+       } else {
+               puts(" - Failed to read thermal calib fuse\n");
+       }
+}
+#else
+static inline void print_temperature(void)
+{
+}
+#endif
+
+int checkboard(void)
 {
        u32 cpurev = get_cpu_rev();
        char *cpu_str = "?";
 
-       switch ((cpurev >> 12) & 0xff) {
-       case MXC_CPU_MX6SL:
+       if (is_cpu_type(MXC_CPU_MX6SL)) {
                cpu_str = "SL";
                tx6_mod_suffix = "?";
-               break;
-       case MXC_CPU_MX6DL:
+       } else if (is_cpu_type(MXC_CPU_MX6DL)) {
                cpu_str = "DL";
                tx6_mod_suffix = "U";
-               break;
-       case MXC_CPU_MX6SOLO:
+       } else if (is_cpu_type(MXC_CPU_MX6SOLO)) {
                cpu_str = "SOLO";
                tx6_mod_suffix = "S";
-               break;
-       case MXC_CPU_MX6Q:
+       } else if (is_cpu_type(MXC_CPU_MX6Q)) {
                cpu_str = "Q";
                tx6_mod_suffix = "Q";
-               break;
+       } else if (is_cpu_type(MXC_CPU_MX6QP)) {
+               cpu_str = "QP";
+               tx6_mod_suffix = "QP";
        }
 
-       printf("CPU:   Freescale i.MX6%s rev%d.%d at %d MHz\n",
+       printf("CPU:         Freescale i.MX6%s rev%d.%d at %d MHz\n",
                cpu_str,
                (cpurev & 0x000F0) >> 4,
                (cpurev & 0x0000F) >> 0,
                mxc_get_clock(MXC_ARM_CLK) / 1000000);
 
+       print_temperature();
        print_reset_cause();
 #ifdef CONFIG_MX6_TEMPERATURE_HOT
        check_cpu_temperature(1);
 #endif
+       tx6_i2c_recover();
+       return 0;
 }
 
+/* serial port not initialized at this point */
 int board_early_init_f(void)
 {
        return 0;
@@ -242,11 +403,163 @@ static bool tx6_temp_check_enabled = true;
 #else
 #define tx6_temp_check_enabled 0
 #endif
-static int pmic_addr __data;
+
+#ifdef CONFIG_TX6_NAND
+#define TX6_FLASH_SZ   (CONFIG_SYS_NAND_BLOCKS / 1024 - 1)
+#else
+#ifdef CONFIG_MMC_BOOT_SIZE
+#define TX6_FLASH_SZ   (CONFIG_MMC_BOOT_SIZE / 4096 + 2)
+#else
+#define TX6_FLASH_SZ   2
+#endif
+#endif /* CONFIG_TX6_NAND */
+
+#define TX6_DDR_SZ     (ffs(CONFIG_SYS_SDRAM_BUS_WIDTH / 16) - 1)
+
+static char tx6_mem_table[] = {
+       '4', /* TX6S-8034 256MiB SDRAM 16bit; 128MiB NAND */
+       '1', /* TX6U-8011 512MiB SDRAM 32bit; 128MiB NAND */
+       '0', /* TX6Q-1030/TX6U-8030 1GiB SDRAM 64bit; 128MiB NAND */
+       '?', /* N/A 256MiB SDRAM 16bit; 256MiB NAND */
+       '?', /* N/A 512MiB SDRAM 32bit; 256MiB NAND */
+       '2', /* TX6U-8012 1GiB SDRAM 64bit; 256MiB NAND */
+       '?', /* N/A 256MiB SDRAM 16bit; 4GiB eMMC */
+       '5', /* TX6S-8035 512MiB SDRAM 32bit; 4GiB eMMC */
+       '3', /* TX6U-8033 1GiB SDRAM 64bit; 4GiB eMMC */
+       '?', /* N/A 256MiB SDRAM 16bit; 8GiB eMMC */
+       '?', /* N/A 512MiB SDRAM 32bit; 8GiB eMMC */
+       '6', /* TX6Q-1036 1GiB SDRAM 64bit; 8GiB eMMC */
+};
+
+#ifdef CONFIG_RN5T567
+/* PMIC settings */
+#define VDD_RTC_VAL            rn5t_mV_to_regval_rtc(3000)
+#define VDD_CORE_VAL           rn5t_mV_to_regval(1400)         /* DCDC1 */
+#define VDD_CORE_VAL_LP                rn5t_mV_to_regval(900)
+#define VDD_SOC_VAL            rn5t_mV_to_regval(1400)         /* DCDC2 */
+#define VDD_SOC_VAL_LP         rn5t_mV_to_regval(1400)
+#define VDD_DDR_VAL            rn5t_mV_to_regval(1350)         /* DCDC3 */
+#define VDD_DDR_VAL_LP         rn5t_mV_to_regval(1350)
+#define VDD_HIGH_VAL           rn5t_mV_to_regval(3000)         /* DCDC4 */
+#define VDD_HIGH_VAL_LP                rn5t_mV_to_regval(3000)
+#define VDD_IO_INT_VAL         rn5t_mV_to_regval2(3300)        /* LDO1 */
+#define VDD_IO_INT_VAL_LP      rn5t_mV_to_regval2(3300)
+#define VDD_IO_EXT_VAL         rn5t_mV_to_regval2(3300)        /* LDO2 */
+#define VDD_IO_EXT_VAL_LP      rn5t_mV_to_regval2(3300)
+
+static struct pmic_regs rn5t567_regs[] = {
+       { RN5T567_NOETIMSET, 0x5, },
+       { RN5T567_DC1DAC, VDD_CORE_VAL, },
+       { RN5T567_DC2DAC, VDD_SOC_VAL, },
+       { RN5T567_DC3DAC, VDD_DDR_VAL, },
+       { RN5T567_DC4DAC, VDD_HIGH_VAL, },
+       { RN5T567_DC1DAC_SLP, VDD_CORE_VAL_LP, },
+       { RN5T567_DC2DAC_SLP, VDD_SOC_VAL_LP, },
+       { RN5T567_DC3DAC_SLP, VDD_DDR_VAL_LP, },
+       { RN5T567_DC4DAC_SLP, VDD_HIGH_VAL_LP, },
+       { RN5T567_DC1CTL, DCnCTL_DCnEN | DCnMODE_SLP(DCnMODE_PSM), },
+       { RN5T567_DC2CTL, DCnCTL_DCnEN | DCnMODE_SLP(DCnMODE_PSM), },
+       { RN5T567_DC3CTL, DCnCTL_DCnEN | DCnMODE_SLP(DCnMODE_PSM), },
+       { RN5T567_DC4CTL, DCnCTL_DCnEN | DCnMODE_SLP(DCnMODE_PSM), },
+       { RN5T567_LDORTC1DAC, VDD_RTC_VAL, },
+       { RN5T567_LDORTC1_SLOT, 0x0f, ~0x3f, },
+       { RN5T567_LDO1DAC, VDD_IO_INT_VAL, },
+       { RN5T567_LDO2DAC, VDD_IO_EXT_VAL, },
+       { RN5T567_LDOEN1, 0x03, ~0x1f, },
+       { RN5T567_LDOEN2, 0x10, ~0x30, },
+       { RN5T567_LDODIS, 0x1c, ~0x1f, },
+       { RN5T567_INTPOL, 0, },
+       { RN5T567_INTEN, 0x3, },
+       { RN5T567_IREN, 0xf, },
+       { RN5T567_EN_GPIR, 0, },
+};
+#endif
+
+static struct {
+       uchar addr;
+       uchar rev;
+       struct pmic_regs *regs;
+       size_t num_regs;
+} tx6_mod_revs[] = {
+#ifdef CONFIG_LTC3676
+       { 0x3c, 1, NULL, 0, },
+#endif
+#ifdef CONFIG_RN5T567
+       { 0x33, 3, rn5t567_regs, ARRAY_SIZE(rn5t567_regs), },
+#endif
+};
+
+static inline char tx6_mem_suffix(void)
+{
+       size_t mem_idx = (TX6_FLASH_SZ * 3) + TX6_DDR_SZ;
+
+       debug("TX6_DDR_SZ=%d TX6_FLASH_SZ=%d idx=%d\n",
+               TX6_DDR_SZ, TX6_FLASH_SZ, mem_idx);
+
+       if (mem_idx >= ARRAY_SIZE(tx6_mem_table))
+               return '?';
+       if (CONFIG_SYS_SDRAM_CHIP_SIZE > 512)
+               return '7';
+       if (mem_idx == 8)
+               return is_cpu_type(MXC_CPU_MX6Q) ? '6' : '3';
+       return tx6_mem_table[mem_idx];
+};
+
+static int tx6_get_mod_rev(unsigned int pmic_id)
+{
+       if (pmic_id < ARRAY_SIZE(tx6_mod_revs))
+               return tx6_mod_revs[pmic_id].rev;
+
+       return 0;
+}
+
+static int tx6_pmic_probe(void)
+{
+       int i;
+
+       debug("%s@%d: \n", __func__, __LINE__);
+
+       for (i = 0; i < ARRAY_SIZE(tx6_mod_revs); i++) {
+               u8 i2c_addr = tx6_mod_revs[i].addr;
+               int ret = i2c_probe(i2c_addr);
+
+               if (ret == 0) {
+                       debug("I2C probe succeeded for addr 0x%02x\n", i2c_addr);
+                       return i;
+               }
+               debug("I2C probe returned %d for addr 0x%02x\n", ret, i2c_addr);
+       }
+       return -EINVAL;
+}
+
+static int tx6_mipi(void)
+{
+       struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
+       struct fuse_bank4_regs *fuse = (void *)ocotp->bank[4].fuse_regs;
+       u32 gp1 = readl(&fuse->gp1);
+
+       debug("Fuse gp1 @ %p = %08x\n", &fuse->gp1, gp1);
+       return gp1 & 1;
+}
 
 int board_init(void)
 {
        int ret;
+       int pmic_id;
+
+       debug("%s@%d: \n", __func__, __LINE__);
+
+       pmic_id = tx6_pmic_probe();
+       if (pmic_id >= 0 && pmic_id < ARRAY_SIZE(tx6_mod_revs))
+               pmic_addr = tx6_mod_revs[pmic_id].addr;
+
+       printf("Board: Ka-Ro TX6%s-%d%d%d%c\n",
+               tx6_mod_suffix,
+               is_cpu_type(MXC_CPU_MX6Q) ? 1 : 8,
+               tx6_mipi() ? 2 : is_lvds(), tx6_get_mod_rev(pmic_id),
+               tx6_mem_suffix());
+
+       get_hab_status();
 
        ret = gpio_request_array(tx6qdl_gpios, ARRAY_SIZE(tx6qdl_gpios));
        if (ret < 0) {
@@ -269,7 +582,8 @@ int board_init(void)
                return 0;
        }
 
-       ret = tx6_pmic_init(pmic_addr);
+       ret = tx6_pmic_init(pmic_addr, tx6_mod_revs[pmic_id].regs,
+                       tx6_mod_revs[pmic_id].num_regs);
        if (ret) {
                printf("Failed to setup PMIC voltages: %d\n", ret);
                hang();
@@ -279,6 +593,8 @@ int board_init(void)
 
 int dram_init(void)
 {
+       debug("%s@%d: \n", __func__, __LINE__);
+
        /* dram_init must store complete ramsize in gd->ram_size */
        gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
                                PHYS_SDRAM_1_SIZE * CONFIG_NR_DRAM_BANKS);
@@ -287,6 +603,8 @@ int dram_init(void)
 
 void dram_init_banksize(void)
 {
+       debug("%s@%d: chip_size=%u (%u bit bus width)\n", __func__, __LINE__,
+               CONFIG_SYS_SDRAM_CHIP_SIZE, CONFIG_SYS_SDRAM_BUS_WIDTH);
        gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
        gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
                        PHYS_SDRAM_1_SIZE);
@@ -298,43 +616,42 @@ void dram_init_banksize(void)
 }
 
 #ifdef CONFIG_FSL_ESDHC
-#define SD_PAD_CTRL (PAD_CTL_PUS_47K_UP |              \
-       PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |         \
-       PAD_CTL_SRE_FAST)
+#define SD_PAD_CTRL            MUX_PAD_CTRL(PAD_CTL_PUS_47K_UP |       \
+                               PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | \
+                               PAD_CTL_SRE_FAST)
 
 static const iomux_v3_cfg_t mmc0_pads[] = {
-       MX6_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(SD_PAD_CTRL),
+       MX6_PAD_SD1_CMD__SD1_CMD | SD_PAD_CTRL,
+       MX6_PAD_SD1_CLK__SD1_CLK | SD_PAD_CTRL,
+       MX6_PAD_SD1_DAT0__SD1_DATA0 | SD_PAD_CTRL,
+       MX6_PAD_SD1_DAT1__SD1_DATA1 | SD_PAD_CTRL,
+       MX6_PAD_SD1_DAT2__SD1_DATA2 | SD_PAD_CTRL,
+       MX6_PAD_SD1_DAT3__SD1_DATA3 | SD_PAD_CTRL,
        /* SD1 CD */
-       MX6_PAD_SD3_CMD__GPIO7_IO02,
+       MX6_PAD_SD3_CMD__GPIO7_IO02 | TX6_GPIO_PAD_CTRL,
 };
 
 static const iomux_v3_cfg_t mmc1_pads[] = {
-       MX6_PAD_SD2_CMD__SD2_CMD | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD2_CLK__SD2_CLK | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD2_DAT0__SD2_DATA0 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD2_DAT1__SD2_DATA1 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD2_DAT2__SD2_DATA2 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD2_DAT3__SD2_DATA3 | MUX_PAD_CTRL(SD_PAD_CTRL),
+       MX6_PAD_SD2_CMD__SD2_CMD | SD_PAD_CTRL,
+       MX6_PAD_SD2_CLK__SD2_CLK | SD_PAD_CTRL,
+       MX6_PAD_SD2_DAT0__SD2_DATA0 | SD_PAD_CTRL,
+       MX6_PAD_SD2_DAT1__SD2_DATA1 | SD_PAD_CTRL,
+       MX6_PAD_SD2_DAT2__SD2_DATA2 | SD_PAD_CTRL,
+       MX6_PAD_SD2_DAT3__SD2_DATA3 | SD_PAD_CTRL,
        /* SD2 CD */
-       MX6_PAD_SD3_CLK__GPIO7_IO03,
+       MX6_PAD_SD3_CLK__GPIO7_IO03 | TX6_GPIO_PAD_CTRL,
 };
 
 #ifdef CONFIG_TX6_EMMC
 static const iomux_v3_cfg_t mmc3_pads[] = {
-       MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(SD_PAD_CTRL),
-       MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(SD_PAD_CTRL),
+       MX6_PAD_SD4_CMD__SD4_CMD | SD_PAD_CTRL,
+       MX6_PAD_SD4_CLK__SD4_CLK | SD_PAD_CTRL,
+       MX6_PAD_SD4_DAT0__SD4_DATA0 | SD_PAD_CTRL,
+       MX6_PAD_SD4_DAT1__SD4_DATA1 | SD_PAD_CTRL,
+       MX6_PAD_SD4_DAT2__SD4_DATA2 | SD_PAD_CTRL,
+       MX6_PAD_SD4_DAT3__SD4_DATA3 | SD_PAD_CTRL,
        /* eMMC RESET */
-       MX6_PAD_NANDF_ALE__SD4_RESET | MUX_PAD_CTRL(PAD_CTL_PUS_47K_UP |
-                                               PAD_CTL_DSE_40ohm),
+       MX6_PAD_NANDF_ALE__SD4_RESET | SD_PAD_CTRL,
 };
 #endif
 
@@ -402,6 +719,8 @@ int board_mmc_init(bd_t *bis)
 {
        int i;
 
+       debug("%s@%d: \n", __func__, __LINE__);
+
        for (i = 0; i < ARRAY_SIZE(tx6qdl_esdhc_cfg); i++) {
                struct mmc *mmc;
                struct tx6_esdhc_cfg *cfg = &tx6qdl_esdhc_cfg[i];
@@ -435,11 +754,6 @@ int board_mmc_init(bd_t *bis)
 
 #ifdef CONFIG_FEC_MXC
 
-#define FEC_PAD_CTL    (PAD_CTL_DVS | PAD_CTL_DSE_HIGH | \
-                       PAD_CTL_SRE_FAST)
-#define FEC_PAD_CTL2   (PAD_CTL_DVS | PAD_CTL_SRE_FAST)
-#define GPIO_PAD_CTL   (PAD_CTL_DVS | PAD_CTL_DSE_HIGH)
-
 #ifndef ETH_ALEN
 #define ETH_ALEN 6
 #endif
@@ -448,6 +762,8 @@ int board_eth_init(bd_t *bis)
 {
        int ret;
 
+       debug("%s@%d: \n", __func__, __LINE__);
+
        /* delay at least 21ms for the PHY internal POR signal to deassert */
        udelay(22000);
 
@@ -468,8 +784,8 @@ static void tx6_init_mac(void)
 {
        u8 mac[ETH_ALEN];
 
-       imx_get_mac_from_fuse(-1, mac);
-       if (!is_valid_ether_addr(mac)) {
+       imx_get_mac_from_fuse(0, mac);
+       if (!is_valid_ethaddr(mac)) {
                printf("No valid MAC address programmed\n");
                return;
        }
@@ -526,27 +842,27 @@ void show_activity(int arg)
 
 static const iomux_v3_cfg_t stk5_pads[] = {
        /* SW controlled LED on STK5 baseboard */
-       MX6_PAD_EIM_A18__GPIO2_IO20,
+       MX6_PAD_EIM_A18__GPIO2_IO20 | TX6_GPIO_PAD_CTRL,
 
        /* I2C bus on DIMM pins 40/41 */
-       MX6_PAD_GPIO_6__I2C3_SDA,
-       MX6_PAD_GPIO_3__I2C3_SCL,
+       MX6_PAD_GPIO_6__I2C3_SDA | TX6_I2C_PAD_CTRL,
+       MX6_PAD_GPIO_3__I2C3_SCL | TX6_I2C_PAD_CTRL,
 
        /* TSC200x PEN IRQ */
-       MX6_PAD_EIM_D26__GPIO3_IO26,
+       MX6_PAD_EIM_D26__GPIO3_IO26 | TX6_GPIO_PAD_CTRL,
 
        /* EDT-FT5x06 Polytouch panel */
-       MX6_PAD_NANDF_CS2__GPIO6_IO15, /* IRQ */
-       MX6_PAD_EIM_A16__GPIO2_IO22, /* RESET */
-       MX6_PAD_EIM_A17__GPIO2_IO21, /* WAKE */
+       MX6_PAD_NANDF_CS2__GPIO6_IO15 | TX6_GPIO_PAD_CTRL, /* IRQ */
+       MX6_PAD_EIM_A16__GPIO2_IO22 | TX6_GPIO_PAD_CTRL, /* RESET */
+       MX6_PAD_EIM_A17__GPIO2_IO21 | TX6_GPIO_PAD_CTRL, /* WAKE */
 
        /* USBH1 */
-       MX6_PAD_EIM_D31__GPIO3_IO31, /* VBUSEN */
-       MX6_PAD_EIM_D30__GPIO3_IO30, /* OC */
+       MX6_PAD_EIM_D31__GPIO3_IO31 | TX6_GPIO_PAD_CTRL, /* VBUSEN */
+       MX6_PAD_EIM_D30__GPIO3_IO30 | TX6_GPIO_PAD_CTRL, /* OC */
        /* USBOTG */
-       MX6_PAD_EIM_D23__GPIO3_IO23, /* USBOTG ID */
-       MX6_PAD_GPIO_7__GPIO1_IO07, /* VBUSEN */
-       MX6_PAD_GPIO_8__GPIO1_IO08, /* OC */
+       MX6_PAD_EIM_D23__GPIO3_IO23 | TX6_GPIO_PAD_CTRL, /* USBOTG ID */
+       MX6_PAD_GPIO_7__GPIO1_IO07 | TX6_GPIO_PAD_CTRL, /* VBUSEN */
+       MX6_PAD_GPIO_8__GPIO1_IO08 | TX6_GPIO_PAD_CTRL, /* OC */
 };
 
 static const struct gpio stk5_gpios[] = {
@@ -560,18 +876,15 @@ static const struct gpio stk5_gpios[] = {
 };
 
 #ifdef CONFIG_LCD
-static u16 tx6_cmap[256];
 vidinfo_t panel_info = {
        /* set to max. size supported by SoC */
        .vl_col = 1920,
        .vl_row = 1080,
 
        .vl_bpix = LCD_COLOR32,    /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
-       .cmap = tx6_cmap,
 };
 
 static struct fb_videomode tx6_fb_modes[] = {
-#ifndef CONFIG_SYS_LVDS_IF
        {
                /* Standard VGA timing */
                .name           = "VGA",
@@ -605,6 +918,24 @@ static struct fb_videomode tx6_fb_modes[] = {
                .lower_margin   = 10,
                .sync           = FB_SYNC_CLK_LAT_FALL,
        },
+       {
+               /* Emerging ETM0700G0DH6 800 x 480 display.
+                * 152.4 mm x 91.44 mm display area.
+                */
+               .name           = "ET0700",
+               .refresh        = 60,
+               .xres           = 800,
+               .yres           = 480,
+               .pixclock       = KHZ2PICOS(33260),
+               .left_margin    = 88,
+               .hsync_len      = 128,
+               .right_margin   = 40,
+               .upper_margin   = 33,
+               .vsync_len      = 2,
+               .lower_margin   = 10,
+               .sync           = FB_SYNC_CLK_LAT_FALL,
+       },
+#ifndef CONFIG_SYS_LVDS_IF
        {
                /* Emerging ET0350G0DH6 320 x 240 display.
                 * 70.08 mm x 52.56 mm display area.
@@ -614,10 +945,10 @@ static struct fb_videomode tx6_fb_modes[] = {
                .xres           = 320,
                .yres           = 240,
                .pixclock       = KHZ2PICOS(6500),
-               .left_margin    = 68 - 34,
+               .left_margin    = 34,
                .hsync_len      = 34,
                .right_margin   = 20,
-               .upper_margin   = 18 - 3,
+               .upper_margin   = 15,
                .vsync_len      = 3,
                .lower_margin   = 4,
                .sync           = FB_SYNC_CLK_LAT_FALL,
@@ -647,12 +978,12 @@ static struct fb_videomode tx6_fb_modes[] = {
                .xres           = 800,
                .yres           = 480,
                .pixclock       = KHZ2PICOS(33260),
-               .left_margin    = 216 - 128,
+               .left_margin    = 88,
                .hsync_len      = 128,
-               .right_margin   = 1056 - 800 - 216,
-               .upper_margin   = 35 - 2,
+               .right_margin   = 40,
+               .upper_margin   = 33,
                .vsync_len      = 2,
-               .lower_margin   = 525 - 480 - 35,
+               .lower_margin   = 10,
                .sync           = FB_SYNC_CLK_LAT_FALL,
        },
        {
@@ -672,40 +1003,6 @@ static struct fb_videomode tx6_fb_modes[] = {
                .lower_margin   = 4, /* 4.5 according to datasheet */
                .sync           = FB_SYNC_CLK_LAT_FALL,
        },
-       {
-               /* Emerging ET0700G0DH6 800 x 480 display.
-                * 152.4 mm x 91.44 mm display area.
-                */
-               .name           = "ET0700",
-               .refresh        = 60,
-               .xres           = 800,
-               .yres           = 480,
-               .pixclock       = KHZ2PICOS(33260),
-               .left_margin    = 216 - 128,
-               .hsync_len      = 128,
-               .right_margin   = 1056 - 800 - 216,
-               .upper_margin   = 35 - 2,
-               .vsync_len      = 2,
-               .lower_margin   = 525 - 480 - 35,
-               .sync           = FB_SYNC_CLK_LAT_FALL,
-       },
-       {
-               /* Emerging ET070001DM6 800 x 480 display.
-                * 152.4 mm x 91.44 mm display area.
-                */
-               .name           = "ET070001DM6",
-               .refresh        = 60,
-               .xres           = 800,
-               .yres           = 480,
-               .pixclock       = KHZ2PICOS(33260),
-               .left_margin    = 216 - 128,
-               .hsync_len      = 128,
-               .right_margin   = 1056 - 800 - 216,
-               .upper_margin   = 35 - 2,
-               .vsync_len      = 2,
-               .lower_margin   = 525 - 480 - 35,
-               .sync           = 0,
-       },
 #else
        {
                /* HannStar HSD100PXN1
@@ -789,42 +1086,42 @@ void lcd_panel_disable(void)
 
 static const iomux_v3_cfg_t stk5_lcd_pads[] = {
        /* LCD RESET */
-       MX6_PAD_EIM_D29__GPIO3_IO29,
+       MX6_PAD_EIM_D29__GPIO3_IO29 | TX6_GPIO_PAD_CTRL,
        /* LCD POWER_ENABLE */
-       MX6_PAD_EIM_EB3__GPIO2_IO31,
+       MX6_PAD_EIM_EB3__GPIO2_IO31 | TX6_GPIO_PAD_CTRL,
        /* LCD Backlight (PWM) */
-       MX6_PAD_GPIO_1__GPIO1_IO01,
+       MX6_PAD_GPIO_1__GPIO1_IO01 | TX6_GPIO_PAD_CTRL,
 
 #ifndef CONFIG_SYS_LVDS_IF
        /* Display */
-       MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00,
-       MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01,
-       MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02,
-       MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03,
-       MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04,
-       MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05,
-       MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06,
-       MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07,
-       MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08,
-       MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09,
-       MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10,
-       MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11,
-       MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12,
-       MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13,
-       MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14,
-       MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15,
-       MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16,
-       MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17,
-       MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18,
-       MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19,
-       MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20,
-       MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21,
-       MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22,
-       MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23,
-       MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02, /* HSYNC */
-       MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03, /* VSYNC */
-       MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15, /* OE_ACD */
-       MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, /* LSCLK */
+       MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 | TX6_GPIO_PAD_CTRL,
+       MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02 | TX6_GPIO_PAD_CTRL, /* HSYNC */
+       MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03 | TX6_GPIO_PAD_CTRL, /* VSYNC */
+       MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15 | TX6_GPIO_PAD_CTRL, /* OE_ACD */
+       MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | TX6_GPIO_PAD_CTRL, /* LSCLK */
 #endif
 };
 
@@ -850,14 +1147,14 @@ void lcd_ctrl_init(void *lcdbase)
 
        if (!lcd_enabled) {
                debug("LCD disabled\n");
-               return;
+               goto disable;
        }
 
        if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
                debug("Disabling LCD\n");
                lcd_enabled = 0;
                setenv("splashimage", NULL);
-               return;
+               goto disable;
        }
 
        karo_fdt_move_fdt();
@@ -866,7 +1163,7 @@ void lcd_ctrl_init(void *lcdbase)
        if (video_mode == NULL) {
                debug("Disabling LCD\n");
                lcd_enabled = 0;
-               return;
+               goto disable;
        }
        vm = video_mode;
        if (karo_fdt_get_fb_mode(working_fdt, video_mode, &fb_mode) == 0) {
@@ -879,7 +1176,7 @@ void lcd_ctrl_init(void *lcdbase)
                                fb_mode.xres, fb_mode.yres,
                                panel_info.vl_col, panel_info.vl_row);
                        lcd_enabled = 0;
-                       return;
+                       goto disable;
                }
        }
        if (p->name != NULL)
@@ -970,13 +1267,13 @@ void lcd_ctrl_init(void *lcdbase)
                        printf(" %s", p->name);
                }
                printf("\n");
-               return;
+               goto disable;
        }
        if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
                printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
                        p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
                lcd_enabled = 0;
-               return;
+               goto disable;
        }
        panel_info.vl_col = p->xres;
        panel_info.vl_row = p->yres;
@@ -1034,7 +1331,7 @@ void lcd_ctrl_init(void *lcdbase)
                lcd_enabled = 0;
                printf("Invalid %s bus width: %d\n", is_lvds() ? "LVDS" : "LCD",
                        lcd_bus_width);
-               return;
+               goto disable;
        }
        if (is_lvds()) {
                int lvds_mapping = karo_fdt_get_lvds_mapping(working_fdt, 0);
@@ -1045,7 +1342,7 @@ void lcd_ctrl_init(void *lcdbase)
                if (lvds_chan_mask == 0) {
                        printf("No LVDS channel active\n");
                        lcd_enabled = 0;
-                       return;
+                       goto disable;
                }
 
                gpr2 = (lvds_mapping << 6) | (lvds_mapping << 8);
@@ -1074,6 +1371,13 @@ void lcd_ctrl_init(void *lcdbase)
        } else {
                debug("Skipping initialization of LCD controller\n");
        }
+       return;
+
+disable:
+       lcd_enabled = 0;
+       panel_info.vl_col = 0;
+       panel_info.vl_row = 0;
+
 }
 #else
 #define lcd_enabled 0
@@ -1109,7 +1413,8 @@ static void stk5v5_board_init(void)
                return;
        }
 
-       imx_iomux_v3_setup_pad(MX6_PAD_DISP0_DAT0__GPIO4_IO21);
+       imx_iomux_v3_setup_pad(MX6_PAD_DISP0_DAT0__GPIO4_IO21 |
+                       TX6_GPIO_PAD_CTRL);
 }
 
 static void tx6qdl_set_cpu_clock(void)
@@ -1135,15 +1440,9 @@ static void tx6qdl_set_cpu_clock(void)
 
 int board_late_init(void)
 {
-       int ret = 0;
        const char *baseboard;
-#if 1
-       /* override secure_boot fuse */
-       struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
-       struct fuse_bank0_regs *fuse = (void *)ocotp->bank[0].fuse_regs;
 
-       writel(0x12, &fuse->cfg5);
-#endif
+       debug("%s@%d: \n", __func__, __LINE__);
 
        env_cleanup();
 
@@ -1185,7 +1484,8 @@ int board_late_init(void)
        } else {
                printf("WARNING: Unsupported baseboard: '%s'\n",
                        baseboard);
-               ret = -EINVAL;
+               if (!had_ctrlc())
+                       return -EINVAL;
        }
 
 exit:
@@ -1193,105 +1493,6 @@ exit:
 
        gpio_set_value(TX6_RESET_OUT_GPIO, 1);
        clear_ctrlc();
-       return ret;
-}
-
-#ifdef CONFIG_TX6_NAND
-#define TX6_FLASH_SZ   (CONFIG_SYS_NAND_BLOCKS / 1024 - 1)
-#else
-#ifdef CONFIG_MMC_BOOT_SIZE
-#define TX6_FLASH_SZ   (CONFIG_MMC_BOOT_SIZE / 4096 + 2)
-#else
-#define TX6_FLASH_SZ   2
-#endif
-#endif /* CONFIG_TX6_NAND */
-
-#define TX6_DDR_SZ     (ffs(PHYS_SDRAM_1_WIDTH / 16) - 1)
-
-static char tx6_mem_table[] = {
-       '4', /* 256MiB SDRAM 16bit; 128MiB NAND */
-       '1', /* 512MiB SDRAM 32bit; 128MiB NAND */
-       '0', /* 1GiB SDRAM 64bit; 128MiB NAND */
-       '?', /* 256MiB SDRAM 16bit; 256MiB NAND */
-       '?', /* 512MiB SDRAM 32bit; 256MiB NAND */
-       '2', /* 1GiB SDRAM 64bit; 256MiB NAND */
-       '?', /* 256MiB SDRAM 16bit; 4GiB eMMC */
-       '5', /* 512MiB SDRAM 32bit; 4GiB eMMC */
-       '3', /* 1GiB SDRAM 64bit; 4GiB eMMC */
-       '?', /* 256MiB SDRAM 16bit; 8GiB eMMC */
-       '?', /* 512MiB SDRAM 32bit; 8GiB eMMC */
-       '0', /* 1GiB SDRAM 64bit; 8GiB eMMC */
-};
-
-static inline char tx6_mem_suffix(void)
-{
-       size_t mem_idx = (TX6_FLASH_SZ * 3) + TX6_DDR_SZ;
-
-       debug("TX6_DDR_SZ=%d TX6_FLASH_SZ=%d idx=%d\n",
-               TX6_DDR_SZ, TX6_FLASH_SZ, mem_idx);
-
-       if (mem_idx >= ARRAY_SIZE(tx6_mem_table))
-               return '?';
-
-       return tx6_mem_table[mem_idx];
-};
-
-static struct {
-       uchar addr;
-       uchar rev;
-} tx6_mod_revs[] = {
-       { 0x3c, 1, },
-       { 0x32, 2, },
-       { 0x33, 3, },
-};
-
-static int tx6_get_mod_rev(unsigned int pmic_id)
-{
-       if (pmic_id < ARRAY_SIZE(tx6_mod_revs))
-               return tx6_mod_revs[pmic_id].rev;
-
-       return 0;
-}
-
-static int tx6_pmic_probe(void)
-{
-       int i;
-
-       i2c_init_all();
-
-       for (i = 0; i < ARRAY_SIZE(tx6_mod_revs); i++) {
-               u8 i2c_addr = tx6_mod_revs[i].addr;
-               int ret = i2c_probe(i2c_addr);
-
-               if (ret == 0) {
-                       debug("I2C probe succeeded for addr 0x%02x\n", i2c_addr);
-                       return i;
-               }
-               debug("I2C probe returned %d for addr 0x%02x\n", ret, i2c_addr);
-       }
-       return -EINVAL;
-}
-
-int checkboard(void)
-{
-       u32 cpurev = get_cpu_rev();
-       int cpu_variant = (cpurev >> 12) & 0xff;
-       int pmic_id;
-
-       tx6qdl_print_cpuinfo();
-
-       pmic_id = tx6_pmic_probe();
-       if (pmic_id >= 0)
-               pmic_addr = tx6_mod_revs[pmic_id].addr;
-
-       printf("Board: Ka-Ro TX6%s-%d%d%d%c\n",
-               tx6_mod_suffix,
-               cpu_variant == MXC_CPU_MX6Q ? 1 : 8,
-               is_lvds(), tx6_get_mod_rev(pmic_id),
-               tx6_mem_suffix());
-
-       get_hab_status();
-
        return 0;
 }
 
@@ -1339,15 +1540,18 @@ int ft_board_setup(void *blob, bd_t *bd)
                karo_fdt_enable_node(blob, "stk5led", 0);
 
        fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
-       fdt_fixup_ethernet(blob);
 
        karo_fdt_fixup_touchpanel(blob, tx6_touchpanels,
                                ARRAY_SIZE(tx6_touchpanels));
        karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy", "vbus-supply");
        karo_fdt_fixup_flexcan(blob, stk5_v5);
 
-       karo_fdt_update_fb_mode(blob, video_mode);
-
+#ifdef CONFIG_SYS_LVDS_IF
+       karo_fdt_update_fb_mode(blob, video_mode, "/lvds0-panel");
+       karo_fdt_update_fb_mode(blob, video_mode, "/lvds1-panel");
+#else
+       karo_fdt_update_fb_mode(blob, video_mode, "/lcd-panel");
+#endif
        return 0;
 }
 #endif /* CONFIG_OF_BOARD_SETUP */