uboot/board/el/el6x/el6x.c
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   1/*
   2 * Copyright (C) Stefano Babic <sbabic@denx.de>
   3 *
   4 * Based on other i.MX6 boards
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <asm/arch/clock.h>
  10#include <asm/arch/imx-regs.h>
  11#include <asm/arch/iomux.h>
  12#include <asm/arch/mx6-pins.h>
  13#include <linux/errno.h>
  14#include <asm/gpio.h>
  15#include <asm/mach-imx/mxc_i2c.h>
  16#include <asm/mach-imx/iomux-v3.h>
  17#include <asm/mach-imx/boot_mode.h>
  18#include <asm/mach-imx/video.h>
  19#include <mmc.h>
  20#include <fsl_esdhc.h>
  21#include <miiphy.h>
  22#include <netdev.h>
  23#include <asm/arch/mxc_hdmi.h>
  24#include <asm/arch/crm_regs.h>
  25#include <asm/io.h>
  26#include <asm/arch/sys_proto.h>
  27#include <i2c.h>
  28#include <input.h>
  29#include <power/pmic.h>
  30#include <power/pfuze100_pmic.h>
  31#include <asm/arch/mx6-ddr.h>
  32
  33DECLARE_GLOBAL_DATA_PTR;
  34
  35#define OPEN_PAD_CTRL  (PAD_CTL_ODE  | PAD_CTL_DSE_DISABLE | (0 << 12))
  36
  37#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  38        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |                 \
  39        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  40
  41#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |                    \
  42        PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  43        PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  44
  45#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                   \
  46        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  47
  48#define ENET_PAD_CTRL_PD  (PAD_CTL_PUS_100K_DOWN |              \
  49        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
  50
  51#define ENET_PAD_CTRL_CLK  ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
  52        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  53
  54#define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
  55        PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
  56
  57#define I2C_PAD_CTRL  (PAD_CTL_PUS_100K_UP |                    \
  58        PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS |   \
  59        PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  60
  61#define I2C_PMIC        1
  62
  63#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)
  64
  65#define ETH_PHY_RESET   IMX_GPIO_NR(2, 4)
  66
  67int dram_init(void)
  68{
  69        gd->ram_size = imx_ddr_size();
  70
  71        return 0;
  72}
  73
  74iomux_v3_cfg_t const uart2_pads[] = {
  75        MX6_PAD_SD3_DAT5__UART2_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  76        MX6_PAD_SD3_DAT4__UART2_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  77};
  78
  79static void setup_iomux_uart(void)
  80{
  81        imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
  82}
  83
  84#ifdef CONFIG_TARGET_ZC5202
  85iomux_v3_cfg_t const enet_pads[] = {
  86        MX6_PAD_GPIO_18__ENET_RX_CLK            | MUX_PAD_CTRL(ENET_PAD_CTRL),
  87        MX6_PAD_ENET_RXD0__ENET_RX_DATA0        | MUX_PAD_CTRL(ENET_PAD_CTRL),
  88        MX6_PAD_ENET_RXD1__ENET_RX_DATA1        | MUX_PAD_CTRL(ENET_PAD_CTRL),
  89        MX6_PAD_KEY_COL2__ENET_RX_DATA2         | MUX_PAD_CTRL(ENET_PAD_CTRL),
  90        MX6_PAD_KEY_COL0__ENET_RX_DATA3         | MUX_PAD_CTRL(ENET_PAD_CTRL),
  91        MX6_PAD_ENET_CRS_DV__ENET_RX_EN         | MUX_PAD_CTRL(ENET_PAD_CTRL),
  92        MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
  93        MX6_PAD_ENET_TXD0__ENET_TX_DATA0        | MUX_PAD_CTRL(ENET_PAD_CTRL),
  94        MX6_PAD_ENET_TXD1__ENET_TX_DATA1        | MUX_PAD_CTRL(ENET_PAD_CTRL),
  95        MX6_PAD_GPIO_19__ENET_TX_ER             | MUX_PAD_CTRL(ENET_PAD_CTRL),
  96        MX6_PAD_KEY_ROW2__ENET_TX_DATA2         | MUX_PAD_CTRL(ENET_PAD_CTRL),
  97        MX6_PAD_KEY_ROW0__ENET_TX_DATA3         | MUX_PAD_CTRL(ENET_PAD_CTRL),
  98        MX6_PAD_ENET_TX_EN__ENET_TX_EN          | MUX_PAD_CTRL(ENET_PAD_CTRL),
  99        MX6_PAD_ENET_RX_ER__ENET_RX_ER          | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
 100        /* Switch Reset */
 101        MX6_PAD_NANDF_D4__GPIO2_IO04            | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
 102        /* Switch Interrupt */
 103        MX6_PAD_NANDF_D5__GPIO2_IO05            | MUX_PAD_CTRL(NO_PAD_CTRL),
 104        /* use CRS and COL pads as GPIOs */
 105        MX6_PAD_KEY_COL3__GPIO4_IO12            | MUX_PAD_CTRL(OPEN_PAD_CTRL),
 106        MX6_PAD_KEY_ROW1__GPIO4_IO09            | MUX_PAD_CTRL(OPEN_PAD_CTRL),
 107
 108};
 109
 110#define BOARD_NAME "EL6x-ZC5202"
 111#else
 112iomux_v3_cfg_t const enet_pads[] = {
 113        MX6_PAD_ENET_MDIO__ENET_MDIO    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 114        MX6_PAD_ENET_MDC__ENET_MDC      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 115        MX6_PAD_RGMII_TXC__RGMII_TXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 116        MX6_PAD_RGMII_TD0__RGMII_TD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 117        MX6_PAD_RGMII_TD1__RGMII_TD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 118        MX6_PAD_RGMII_TD2__RGMII_TD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 119        MX6_PAD_RGMII_TD3__RGMII_TD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 120        MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 121        MX6_PAD_ENET_REF_CLK__ENET_TX_CLK       | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
 122        MX6_PAD_RGMII_RXC__RGMII_RXC    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 123        MX6_PAD_RGMII_RD0__RGMII_RD0    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 124        MX6_PAD_RGMII_RD1__RGMII_RD1    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 125        MX6_PAD_RGMII_RD2__RGMII_RD2    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 126        MX6_PAD_RGMII_RD3__RGMII_RD3    | MUX_PAD_CTRL(ENET_PAD_CTRL),
 127        MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL      | MUX_PAD_CTRL(ENET_PAD_CTRL),
 128        MX6_PAD_NANDF_D4__GPIO2_IO04            | MUX_PAD_CTRL(NO_PAD_CTRL),
 129        MX6_PAD_NANDF_D5__GPIO2_IO05            | MUX_PAD_CTRL(NO_PAD_CTRL),
 130};
 131#define BOARD_NAME "EL6x-ZC5601"
 132#endif
 133
 134static void setup_iomux_enet(void)
 135{
 136        imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
 137
 138#ifdef CONFIG_TARGET_ZC5202
 139        /* set CRS and COL to input */
 140        gpio_direction_input(IMX_GPIO_NR(4, 9));
 141        gpio_direction_input(IMX_GPIO_NR(4, 12));
 142
 143        /* Reset Switch */
 144        gpio_direction_output(ETH_PHY_RESET , 0);
 145        mdelay(2);
 146        gpio_set_value(ETH_PHY_RESET, 1);
 147#endif
 148}
 149
 150int board_phy_config(struct phy_device *phydev)
 151{
 152        if (phydev->drv->config)
 153                phydev->drv->config(phydev);
 154
 155        return 0;
 156}
 157
 158#ifdef CONFIG_MXC_SPI
 159#ifdef CONFIG_TARGET_ZC5202
 160iomux_v3_cfg_t const ecspi1_pads[] = {
 161        MX6_PAD_DISP0_DAT20__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 162        MX6_PAD_DISP0_DAT21__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 163        MX6_PAD_DISP0_DAT22__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 164        MX6_PAD_DISP0_DAT23__GPIO5_IO17  | MUX_PAD_CTRL(NO_PAD_CTRL),
 165        MX6_PAD_DISP0_DAT15__GPIO5_IO09  | MUX_PAD_CTRL(NO_PAD_CTRL),
 166};
 167
 168iomux_v3_cfg_t const ecspi3_pads[] = {
 169        MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 170        MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 171        MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 172        MX6_PAD_DISP0_DAT7__GPIO4_IO28   | MUX_PAD_CTRL(SPI_PAD_CTRL),
 173        MX6_PAD_DISP0_DAT8__GPIO4_IO29   | MUX_PAD_CTRL(SPI_PAD_CTRL),
 174        MX6_PAD_DISP0_DAT9__GPIO4_IO30   | MUX_PAD_CTRL(SPI_PAD_CTRL),
 175        MX6_PAD_DISP0_DAT10__GPIO4_IO31  | MUX_PAD_CTRL(SPI_PAD_CTRL),
 176};
 177#endif
 178
 179iomux_v3_cfg_t const ecspi4_pads[] = {
 180        MX6_PAD_EIM_D21__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
 181        MX6_PAD_EIM_D28__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
 182        MX6_PAD_EIM_D22__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
 183        MX6_PAD_EIM_D20__GPIO3_IO20  | MUX_PAD_CTRL(NO_PAD_CTRL),
 184};
 185
 186int board_spi_cs_gpio(unsigned bus, unsigned cs)
 187{
 188        return (bus == CONFIG_SF_DEFAULT_BUS && cs == CONFIG_SF_DEFAULT_CS)
 189                ? (IMX_GPIO_NR(3, 20)) : -1;
 190}
 191
 192static void setup_spi(void)
 193{
 194#ifdef CONFIG_TARGET_ZC5202
 195        gpio_request(IMX_GPIO_NR(5, 17), "spi_cs0");
 196        gpio_request(IMX_GPIO_NR(5, 9), "spi_cs1");
 197        gpio_direction_output(IMX_GPIO_NR(5, 17), 1);
 198        gpio_direction_output(IMX_GPIO_NR(5, 9), 1);
 199        imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
 200#endif
 201
 202        gpio_request(IMX_GPIO_NR(3, 20), "spi4_cs0");
 203        gpio_direction_output(IMX_GPIO_NR(3, 20), 1);
 204        imx_iomux_v3_setup_multiple_pads(ecspi4_pads, ARRAY_SIZE(ecspi4_pads));
 205
 206        enable_spi_clk(true, 3);
 207}
 208#endif
 209
 210static struct i2c_pads_info i2c_pad_info1 = {
 211        .scl = {
 212                .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | I2C_PAD,
 213                .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | I2C_PAD,
 214                .gp = IMX_GPIO_NR(2, 30)
 215        },
 216        .sda = {
 217                .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
 218                .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
 219                .gp = IMX_GPIO_NR(4, 13)
 220        }
 221};
 222
 223static struct i2c_pads_info i2c_pad_info2 = {
 224        .scl = {
 225                .i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | I2C_PAD,
 226                .gpio_mode = MX6_PAD_GPIO_5__GPIO1_IO05 | I2C_PAD,
 227                .gp = IMX_GPIO_NR(1, 5)
 228        },
 229        .sda = {
 230                .i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | I2C_PAD,
 231                .gpio_mode = MX6_PAD_GPIO_16__GPIO7_IO11 | I2C_PAD,
 232                .gp = IMX_GPIO_NR(7, 11)
 233        }
 234};
 235
 236iomux_v3_cfg_t const usdhc2_pads[] = {
 237        MX6_PAD_SD2_CLK__SD2_CLK        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 238        MX6_PAD_SD2_CMD__SD2_CMD        | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 239        MX6_PAD_SD2_DAT0__SD2_DATA0     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 240        MX6_PAD_SD2_DAT1__SD2_DATA1     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 241        MX6_PAD_SD2_DAT2__SD2_DATA2     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 242        MX6_PAD_SD2_DAT3__SD2_DATA3     | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 243        MX6_PAD_GPIO_4__SD2_CD_B        | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
 244};
 245
 246iomux_v3_cfg_t const usdhc4_pads[] = {
 247        MX6_PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 248        MX6_PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 249        MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 250        MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 251        MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 252        MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 253        MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 254        MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 255        MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 256        MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 257};
 258
 259#ifdef CONFIG_FSL_ESDHC
 260struct fsl_esdhc_cfg usdhc_cfg[2] = {
 261        {USDHC2_BASE_ADDR},
 262        {USDHC4_BASE_ADDR},
 263};
 264
 265#define USDHC2_CD_GPIO  IMX_GPIO_NR(1, 4)
 266
 267int board_mmc_getcd(struct mmc *mmc)
 268{
 269        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 270        int ret = 0;
 271
 272        switch (cfg->esdhc_base) {
 273        case USDHC2_BASE_ADDR:
 274                ret = !gpio_get_value(USDHC2_CD_GPIO);
 275                break;
 276        case USDHC4_BASE_ADDR:
 277                ret = 1; /* eMMC/uSDHC4 is always present */
 278                break;
 279        }
 280
 281        return ret;
 282}
 283
 284int board_mmc_init(bd_t *bis)
 285{
 286#ifndef CONFIG_SPL_BUILD
 287        int ret;
 288        int i;
 289
 290        /*
 291         * According to the board_mmc_init() the following map is done:
 292         * (U-boot device node)    (Physical Port)
 293         * mmc0                    SD2
 294         * mmc1                    SD3
 295         * mmc2                    eMMC
 296         */
 297        for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 298                switch (i) {
 299                case 0:
 300                        imx_iomux_v3_setup_multiple_pads(
 301                                usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 302                        gpio_direction_input(USDHC2_CD_GPIO);
 303                        usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 304                        break;
 305                case 1:
 306                        imx_iomux_v3_setup_multiple_pads(
 307                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 308                        usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 309                        break;
 310                default:
 311                        printf("Warning: you configured more USDHC controllers"
 312                               "(%d) then supported by the board (%d)\n",
 313                               i + 1, CONFIG_SYS_FSL_USDHC_NUM);
 314                        return -EINVAL;
 315                }
 316
 317                ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
 318                if (ret)
 319                        return ret;
 320        }
 321
 322        return 0;
 323#else
 324        struct src *psrc = (struct src *)SRC_BASE_ADDR;
 325        unsigned reg = readl(&psrc->sbmr1) >> 11;
 326
 327        /*
 328         * Upon reading BOOT_CFG register the following map is done:
 329         * Bit 11 and 12 of BOOT_CFG register can determine the current
 330         * mmc port
 331         * 0x1                  SD1
 332         * 0x2                  SD2
 333         * 0x3                  SD4
 334         */
 335
 336        switch (reg & 0x3) {
 337        case 0x1:
 338                imx_iomux_v3_setup_multiple_pads(
 339                        usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 340                usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
 341                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 342                gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
 343                break;
 344        case 0x3:
 345                imx_iomux_v3_setup_multiple_pads(
 346                        usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 347                usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
 348                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 349                gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
 350                break;
 351        }
 352
 353        return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 354#endif
 355
 356}
 357#endif
 358
 359
 360/*
 361 * Do not overwrite the console
 362 * Use always serial for U-Boot console
 363 */
 364int overwrite_console(void)
 365{
 366        return 1;
 367}
 368
 369int board_eth_init(bd_t *bis)
 370{
 371        setup_iomux_enet();
 372        enable_enet_clk(1);
 373
 374        return cpu_eth_init(bis);
 375}
 376
 377int board_early_init_f(void)
 378{
 379
 380        setup_iomux_uart();
 381        setup_spi();
 382
 383        return 0;
 384}
 385
 386int board_init(void)
 387{
 388        /* address of boot parameters */
 389        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 390
 391        setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 392        setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 393
 394        return 0;
 395}
 396
 397int power_init_board(void)
 398{
 399        struct pmic *p;
 400        int ret;
 401        unsigned int reg;
 402
 403        ret = power_pfuze100_init(I2C_PMIC);
 404        if (ret)
 405                return ret;
 406
 407        p = pmic_get("PFUZE100");
 408        ret = pmic_probe(p);
 409        if (ret)
 410                return ret;
 411
 412        pmic_reg_read(p, PFUZE100_DEVICEID, &reg);
 413        printf("PMIC:  PFUZE100 ID=0x%02x\n", reg);
 414
 415        /* Increase VGEN3 from 2.5 to 2.8V */
 416        pmic_reg_read(p, PFUZE100_VGEN3VOL, &reg);
 417        reg &= ~LDO_VOL_MASK;
 418        reg |= LDOB_2_80V;
 419        pmic_reg_write(p, PFUZE100_VGEN3VOL, reg);
 420
 421        /* Increase VGEN5 from 2.8 to 3V */
 422        pmic_reg_read(p, PFUZE100_VGEN5VOL, &reg);
 423        reg &= ~LDO_VOL_MASK;
 424        reg |= LDOB_3_00V;
 425        pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
 426
 427        /* Set SW1AB stanby volage to 0.975V */
 428        pmic_reg_read(p, PFUZE100_SW1ABSTBY, &reg);
 429        reg &= ~SW1x_STBY_MASK;
 430        reg |= SW1x_0_975V;
 431        pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
 432
 433        /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
 434        pmic_reg_read(p, PFUZE100_SW1ABCONF, &reg);
 435        reg &= ~SW1xCONF_DVSSPEED_MASK;
 436        reg |= SW1xCONF_DVSSPEED_4US;
 437        pmic_reg_write(p, PFUZE100_SW1ABCONF, reg);
 438
 439        /* Set SW1C standby voltage to 0.975V */
 440        pmic_reg_read(p, PFUZE100_SW1CSTBY, &reg);
 441        reg &= ~SW1x_STBY_MASK;
 442        reg |= SW1x_0_975V;
 443        pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
 444
 445        /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
 446        pmic_reg_read(p, PFUZE100_SW1CCONF, &reg);
 447        reg &= ~SW1xCONF_DVSSPEED_MASK;
 448        reg |= SW1xCONF_DVSSPEED_4US;
 449        pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
 450
 451        return 0;
 452}
 453
 454#ifdef CONFIG_CMD_BMODE
 455static const struct boot_mode board_boot_modes[] = {
 456        /* 4 bit bus width */
 457        {"sd2",  MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
 458        /* 8 bit bus width */
 459        {"emmc", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
 460        {NULL,   0},
 461};
 462#endif
 463
 464int board_late_init(void)
 465{
 466#ifdef CONFIG_CMD_BMODE
 467        add_board_boot_modes(board_boot_modes);
 468#endif
 469
 470        env_set("board_name", BOARD_NAME);
 471        return 0;
 472}
 473
 474int checkboard(void)
 475{
 476        puts("Board: ");
 477        puts(BOARD_NAME "\n");
 478
 479        return 0;
 480}
 481
 482#ifdef CONFIG_SPL_BUILD
 483#include <spl.h>
 484#include <libfdt.h>
 485
 486const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
 487        .dram_sdclk_0 =  0x00020030,
 488        .dram_sdclk_1 =  0x00020030,
 489        .dram_cas =  0x00020030,
 490        .dram_ras =  0x00020030,
 491        .dram_reset =  0x00020030,
 492        .dram_sdcke0 =  0x00003000,
 493        .dram_sdcke1 =  0x00003000,
 494        .dram_sdba2 =  0x00000000,
 495        .dram_sdodt0 =  0x00003030,
 496        .dram_sdodt1 =  0x00003030,
 497        .dram_sdqs0 =  0x00000030,
 498        .dram_sdqs1 =  0x00000030,
 499        .dram_sdqs2 =  0x00000030,
 500        .dram_sdqs3 =  0x00000030,
 501        .dram_sdqs4 =  0x00000030,
 502        .dram_sdqs5 =  0x00000030,
 503        .dram_sdqs6 =  0x00000030,
 504        .dram_sdqs7 =  0x00000030,
 505        .dram_dqm0 =  0x00020030,
 506        .dram_dqm1 =  0x00020030,
 507        .dram_dqm2 =  0x00020030,
 508        .dram_dqm3 =  0x00020030,
 509        .dram_dqm4 =  0x00020030,
 510        .dram_dqm5 =  0x00020030,
 511        .dram_dqm6 =  0x00020030,
 512        .dram_dqm7 =  0x00020030,
 513};
 514
 515const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
 516        .grp_ddr_type =  0x000C0000,
 517        .grp_ddrmode_ctl =  0x00020000,
 518        .grp_ddrpke =  0x00000000,
 519        .grp_addds =  0x00000030,
 520        .grp_ctlds =  0x00000030,
 521        .grp_ddrmode =  0x00020000,
 522        .grp_b0ds =  0x00000030,
 523        .grp_b1ds =  0x00000030,
 524        .grp_b2ds =  0x00000030,
 525        .grp_b3ds =  0x00000030,
 526        .grp_b4ds =  0x00000030,
 527        .grp_b5ds =  0x00000030,
 528        .grp_b6ds =  0x00000030,
 529        .grp_b7ds =  0x00000030,
 530};
 531
 532const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 533        .p0_mpwldectrl0 =  0x001F001F,
 534        .p0_mpwldectrl1 =  0x001F001F,
 535        .p1_mpwldectrl0 =  0x00440044,
 536        .p1_mpwldectrl1 =  0x00440044,
 537        .p0_mpdgctrl0 =  0x434B0350,
 538        .p0_mpdgctrl1 =  0x034C0359,
 539        .p1_mpdgctrl0 =  0x434B0350,
 540        .p1_mpdgctrl1 =  0x03650348,
 541        .p0_mprddlctl =  0x4436383B,
 542        .p1_mprddlctl =  0x39393341,
 543        .p0_mpwrdlctl =  0x35373933,
 544        .p1_mpwrdlctl =  0x48254A36,
 545};
 546
 547/* MT41K128M16JT-125 */
 548static struct mx6_ddr3_cfg mem_ddr = {
 549        .mem_speed = 1600,
 550        .density = 2,
 551        .width = 16,
 552        .banks = 8,
 553        .rowaddr = 14,
 554        .coladdr = 10,
 555        .pagesz = 2,
 556        .trcd = 1375,
 557        .trcmin = 4875,
 558        .trasmin = 3500,
 559};
 560
 561static void ccgr_init(void)
 562{
 563        struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 564
 565        writel(0x00C03F3F, &ccm->CCGR0);
 566        writel(0x0030FC03, &ccm->CCGR1);
 567        writel(0x0FFFC000, &ccm->CCGR2);
 568        writel(0x3FF00000, &ccm->CCGR3);
 569        writel(0x00FFF300, &ccm->CCGR4);
 570        writel(0x0F0000C3, &ccm->CCGR5);
 571        writel(0x000003FF, &ccm->CCGR6);
 572}
 573
 574/*
 575 * This section requires the differentiation between iMX6 Sabre boards, but
 576 * for now, it will configure only for the mx6q variant.
 577 */
 578static void spl_dram_init(void)
 579{
 580        struct mx6_ddr_sysinfo sysinfo = {
 581                /* width of data bus:0=16,1=32,2=64 */
 582                .dsize = 2,
 583                /* config for full 4GB range so that get_mem_size() works */
 584                .cs_density = 32, /* 32Gb per CS */
 585                /* single chip select */
 586                .ncs = 1,
 587                .cs1_mirror = 0,
 588                .rtt_wr = 1 /*DDR3_RTT_60_OHM*/,        /* RTT_Wr = RZQ/4 */
 589                .rtt_nom = 1 /*DDR3_RTT_60_OHM*/,       /* RTT_Nom = RZQ/4 */
 590                .walat = 1,     /* Write additional latency */
 591                .ralat = 5,     /* Read additional latency */
 592                .mif3_mode = 3, /* Command prediction working mode */
 593                .bi_on = 1,     /* Bank interleaving enabled */
 594                .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 595                .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 596                .ddr_type = DDR_TYPE_DDR3,
 597                .refsel = 1,    /* Refresh cycles at 32KHz */
 598                .refr = 7,      /* 8 refresh commands per refresh cycle */
 599        };
 600
 601        mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
 602        mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
 603}
 604
 605void board_init_f(ulong dummy)
 606{
 607        /* setup AIPS and disable watchdog */
 608        arch_cpu_init();
 609
 610        ccgr_init();
 611        gpr_init();
 612
 613        /* iomux and setup of i2c */
 614        board_early_init_f();
 615
 616        /* setup GP timer */
 617        timer_init();
 618
 619        /* UART clocks enabled and gd valid - init serial console */
 620        preloader_console_init();
 621
 622        /* DDR initialization */
 623        spl_dram_init();
 624
 625        /* Clear the BSS. */
 626        memset(__bss_start, 0, __bss_end - __bss_start);
 627
 628        /* load/boot image from boot device */
 629        board_init_r(NULL, 0);
 630}
 631
 632#endif
 633