uboot/board/freescale/mx6sxsabresd/mx6sxsabresd.c
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   1/*
   2 * Copyright (C) 2014 Freescale Semiconductor, Inc.
   3 *
   4 * Author: Fabio Estevam <fabio.estevam@freescale.com>
   5 *
   6 * SPDX-License-Identifier:     GPL-2.0+
   7 */
   8
   9#include <asm/arch/clock.h>
  10#include <asm/arch/crm_regs.h>
  11#include <asm/arch/iomux.h>
  12#include <asm/arch/imx-regs.h>
  13#include <asm/arch/mx6-pins.h>
  14#include <asm/arch/sys_proto.h>
  15#include <asm/gpio.h>
  16#include <asm/imx-common/iomux-v3.h>
  17#include <asm/io.h>
  18#include <asm/imx-common/mxc_i2c.h>
  19#include <linux/sizes.h>
  20#include <common.h>
  21#include <fsl_esdhc.h>
  22#include <mmc.h>
  23#include <i2c.h>
  24#include <miiphy.h>
  25#include <netdev.h>
  26#include <power/pmic.h>
  27#include <power/pfuze100_pmic.h>
  28#include "../common/pfuze.h"
  29#include <usb.h>
  30#include <usb/ehci-ci.h>
  31
  32DECLARE_GLOBAL_DATA_PTR;
  33
  34#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |             \
  35        PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  36        PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  37
  38#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |             \
  39        PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |               \
  40        PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
  41
  42#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
  43        PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  44        PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  45        PAD_CTL_ODE)
  46
  47#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
  48        PAD_CTL_SPEED_HIGH   |                                   \
  49        PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST)
  50
  51#define ENET_CLK_PAD_CTRL  (PAD_CTL_SPEED_MED | \
  52        PAD_CTL_DSE_120ohm   | PAD_CTL_SRE_FAST)
  53
  54#define ENET_RX_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |          \
  55        PAD_CTL_SPEED_HIGH   | PAD_CTL_SRE_FAST)
  56
  57#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
  58        PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
  59        PAD_CTL_DSE_40ohm | PAD_CTL_HYS |                       \
  60        PAD_CTL_ODE)
  61
  62#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
  63        PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)
  64
  65int dram_init(void)
  66{
  67        gd->ram_size = imx_ddr_size();
  68
  69        return 0;
  70}
  71
  72static iomux_v3_cfg_t const uart1_pads[] = {
  73        MX6_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
  74        MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
  75};
  76
  77static iomux_v3_cfg_t const usdhc2_pads[] = {
  78        MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  79        MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  80        MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  81        MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  82        MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  83        MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  84};
  85
  86static iomux_v3_cfg_t const usdhc3_pads[] = {
  87        MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  88        MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  89        MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  90        MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  91        MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  92        MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  93        MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  94        MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  95        MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  96        MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
  97
  98        /* CD pin */
  99        MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
 100
 101        /* RST_B, used for power reset cycle */
 102        MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
 103};
 104
 105static iomux_v3_cfg_t const usdhc4_pads[] = {
 106        MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 107        MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 108        MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 109        MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 110        MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 111        MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 112        MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
 113};
 114
 115static iomux_v3_cfg_t const fec1_pads[] = {
 116        MX6_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
 117        MX6_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
 118        MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 119        MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 120        MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 121        MX6_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 122        MX6_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 123        MX6_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
 124        MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
 125        MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 126        MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 127        MX6_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 128        MX6_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
 129        MX6_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
 130};
 131
 132static iomux_v3_cfg_t const peri_3v3_pads[] = {
 133        MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL),
 134};
 135
 136static iomux_v3_cfg_t const phy_control_pads[] = {
 137        /* 25MHz Ethernet PHY Clock */
 138        MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),
 139
 140        /* ENET PHY Power */
 141        MX6_PAD_ENET2_COL__GPIO2_IO_6 | MUX_PAD_CTRL(NO_PAD_CTRL),
 142
 143        /* AR8031 PHY Reset */
 144        MX6_PAD_ENET2_CRS__GPIO2_IO_7 | MUX_PAD_CTRL(NO_PAD_CTRL),
 145};
 146
 147static void setup_iomux_uart(void)
 148{
 149        imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
 150}
 151
 152static int setup_fec(void)
 153{
 154        struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
 155        struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
 156        int reg, ret;
 157
 158        /* Use 125MHz anatop loopback REF_CLK1 for ENET1 */
 159        clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);
 160
 161        ret = enable_fec_anatop_clock(0, ENET_125MHZ);
 162        if (ret)
 163                return ret;
 164
 165        imx_iomux_v3_setup_multiple_pads(phy_control_pads,
 166                                         ARRAY_SIZE(phy_control_pads));
 167
 168        /* Enable the ENET power, active low */
 169        gpio_direction_output(IMX_GPIO_NR(2, 6) , 0);
 170
 171        /* Reset AR8031 PHY */
 172        gpio_direction_output(IMX_GPIO_NR(2, 7) , 0);
 173        mdelay(10);
 174        gpio_set_value(IMX_GPIO_NR(2, 7), 1);
 175
 176        reg = readl(&anatop->pll_enet);
 177        reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
 178        writel(reg, &anatop->pll_enet);
 179
 180        return 0;
 181}
 182
 183int board_eth_init(bd_t *bis)
 184{
 185        imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));
 186        setup_fec();
 187
 188        return cpu_eth_init(bis);
 189}
 190
 191#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
 192/* I2C1 for PMIC */
 193static struct i2c_pads_info i2c_pad_info1 = {
 194        .scl = {
 195                .i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
 196                .gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
 197                .gp = IMX_GPIO_NR(1, 0),
 198        },
 199        .sda = {
 200                .i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
 201                .gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
 202                .gp = IMX_GPIO_NR(1, 1),
 203        },
 204};
 205
 206int power_init_board(void)
 207{
 208        struct pmic *p;
 209        unsigned int reg;
 210        int ret;
 211
 212        p = pfuze_common_init(I2C_PMIC);
 213        if (!p)
 214                return -ENODEV;
 215
 216        ret = pfuze_mode_init(p, APS_PFM);
 217        if (ret < 0)
 218                return ret;
 219
 220        /* Enable power of VGEN5 3V3, needed for SD3 */
 221        pmic_reg_read(p, PFUZE100_VGEN5VOL, &reg);
 222        reg &= ~LDO_VOL_MASK;
 223        reg |= (LDOB_3_30V | (1 << LDO_EN));
 224        pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);
 225
 226        return 0;
 227}
 228
 229#ifdef CONFIG_USB_EHCI_MX6
 230#define USB_OTHERREGS_OFFSET    0x800
 231#define UCTRL_PWR_POL           (1 << 9)
 232
 233static iomux_v3_cfg_t const usb_otg_pads[] = {
 234        /* OGT1 */
 235        MX6_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
 236        MX6_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
 237        /* OTG2 */
 238        MX6_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
 239};
 240
 241static void setup_usb(void)
 242{
 243        imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
 244                                         ARRAY_SIZE(usb_otg_pads));
 245}
 246
 247int board_usb_phy_mode(int port)
 248{
 249        if (port == 1)
 250                return USB_INIT_HOST;
 251        else
 252                return usb_phy_mode(port);
 253}
 254
 255int board_ehci_hcd_init(int port)
 256{
 257        u32 *usbnc_usb_ctrl;
 258
 259        if (port > 1)
 260                return -EINVAL;
 261
 262        usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
 263                                 port * 4);
 264
 265        /* Set Power polarity */
 266        setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
 267
 268        return 0;
 269}
 270#endif
 271
 272int board_phy_config(struct phy_device *phydev)
 273{
 274        /*
 275         * Enable 1.8V(SEL_1P5_1P8_POS_REG) on
 276         * Phy control debug reg 0
 277         */
 278        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
 279        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
 280
 281        /* rgmii tx clock delay enable */
 282        phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
 283        phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
 284
 285        if (phydev->drv->config)
 286                phydev->drv->config(phydev);
 287
 288        return 0;
 289}
 290
 291int board_early_init_f(void)
 292{
 293        setup_iomux_uart();
 294
 295        /* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
 296        imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
 297                                         ARRAY_SIZE(peri_3v3_pads));
 298
 299        /* Active high for ncp692 */
 300        gpio_direction_output(IMX_GPIO_NR(4, 16) , 1);
 301
 302#ifdef CONFIG_USB_EHCI_MX6
 303        setup_usb();
 304#endif
 305
 306        return 0;
 307}
 308
 309static struct fsl_esdhc_cfg usdhc_cfg[3] = {
 310        {USDHC2_BASE_ADDR, 0, 4},
 311        {USDHC3_BASE_ADDR},
 312        {USDHC4_BASE_ADDR},
 313};
 314
 315#define USDHC3_CD_GPIO  IMX_GPIO_NR(2, 10)
 316#define USDHC3_PWR_GPIO IMX_GPIO_NR(2, 11)
 317#define USDHC4_CD_GPIO  IMX_GPIO_NR(6, 21)
 318
 319int board_mmc_get_env_dev(int devno)
 320{
 321        return devno - 1;
 322}
 323
 324int board_mmc_getcd(struct mmc *mmc)
 325{
 326        struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 327        int ret = 0;
 328
 329        switch (cfg->esdhc_base) {
 330        case USDHC2_BASE_ADDR:
 331                ret = 1; /* Assume uSDHC2 is always present */
 332                break;
 333        case USDHC3_BASE_ADDR:
 334                ret = !gpio_get_value(USDHC3_CD_GPIO);
 335                break;
 336        case USDHC4_BASE_ADDR:
 337                ret = !gpio_get_value(USDHC4_CD_GPIO);
 338                break;
 339        }
 340
 341        return ret;
 342}
 343
 344int board_mmc_init(bd_t *bis)
 345{
 346#ifndef CONFIG_SPL_BUILD
 347        int i, ret;
 348
 349        /*
 350         * According to the board_mmc_init() the following map is done:
 351         * (U-Boot device node)    (Physical Port)
 352         * mmc0                    USDHC2
 353         * mmc1                    USDHC3
 354         * mmc2                    USDHC4
 355         */
 356        for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
 357                switch (i) {
 358                case 0:
 359                        imx_iomux_v3_setup_multiple_pads(
 360                                usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 361                        usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 362                        break;
 363                case 1:
 364                        imx_iomux_v3_setup_multiple_pads(
 365                                usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 366                        gpio_direction_input(USDHC3_CD_GPIO);
 367                        gpio_direction_output(USDHC3_PWR_GPIO, 1);
 368                        usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 369                        break;
 370                case 2:
 371                        imx_iomux_v3_setup_multiple_pads(
 372                                usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 373                        gpio_direction_input(USDHC4_CD_GPIO);
 374                        usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 375                        break;
 376                default:
 377                        printf("Warning: you configured more USDHC controllers"
 378                                "(%d) than supported by the board\n", i + 1);
 379                        return -EINVAL;
 380                        }
 381
 382                        ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
 383                        if (ret) {
 384                                printf("Warning: failed to initialize mmc dev %d\n", i);
 385                                return ret;
 386                        }
 387        }
 388
 389        return 0;
 390#else
 391        struct src *src_regs = (struct src *)SRC_BASE_ADDR;
 392        u32 val;
 393        u32 port;
 394
 395        val = readl(&src_regs->sbmr1);
 396
 397        if ((val & 0xc0) != 0x40) {
 398                printf("Not boot from USDHC!\n");
 399                return -EINVAL;
 400        }
 401
 402        port = (val >> 11) & 0x3;
 403        printf("port %d\n", port);
 404        switch (port) {
 405        case 1:
 406                imx_iomux_v3_setup_multiple_pads(
 407                        usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
 408                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
 409                usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
 410                break;
 411        case 2:
 412                imx_iomux_v3_setup_multiple_pads(
 413                        usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 414                gpio_direction_input(USDHC3_CD_GPIO);
 415                gpio_direction_output(USDHC3_PWR_GPIO, 1);
 416                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 417                usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
 418                break;
 419        case 3:
 420                imx_iomux_v3_setup_multiple_pads(
 421                        usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 422                gpio_direction_input(USDHC4_CD_GPIO);
 423                usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 424                usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
 425                break;
 426        }
 427
 428        gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
 429        return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
 430#endif
 431}
 432
 433#ifdef CONFIG_FSL_QSPI
 434
 435#define QSPI_PAD_CTRL1  \
 436        (PAD_CTL_SRE_FAST | PAD_CTL_SPEED_HIGH | \
 437         PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_40ohm)
 438
 439static iomux_v3_cfg_t const quadspi_pads[] = {
 440        MX6_PAD_NAND_WP_B__QSPI2_A_DATA_0       | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 441        MX6_PAD_NAND_READY_B__QSPI2_A_DATA_1    | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 442        MX6_PAD_NAND_CE0_B__QSPI2_A_DATA_2      | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 443        MX6_PAD_NAND_CE1_B__QSPI2_A_DATA_3      | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 444        MX6_PAD_NAND_ALE__QSPI2_A_SS0_B         | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 445        MX6_PAD_NAND_CLE__QSPI2_A_SCLK          | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 446        MX6_PAD_NAND_DATA07__QSPI2_A_DQS        | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 447        MX6_PAD_NAND_DATA01__QSPI2_B_DATA_0     | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 448        MX6_PAD_NAND_DATA00__QSPI2_B_DATA_1     | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 449        MX6_PAD_NAND_WE_B__QSPI2_B_DATA_2       | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 450        MX6_PAD_NAND_RE_B__QSPI2_B_DATA_3       | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 451        MX6_PAD_NAND_DATA03__QSPI2_B_SS0_B      | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 452        MX6_PAD_NAND_DATA02__QSPI2_B_SCLK       | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 453        MX6_PAD_NAND_DATA05__QSPI2_B_DQS        | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
 454};
 455
 456int board_qspi_init(void)
 457{
 458        /* Set the iomux */
 459        imx_iomux_v3_setup_multiple_pads(quadspi_pads,
 460                                         ARRAY_SIZE(quadspi_pads));
 461
 462        /* Set the clock */
 463        enable_qspi_clk(1);
 464
 465        return 0;
 466}
 467#endif
 468
 469#ifdef CONFIG_VIDEO_MXS
 470static iomux_v3_cfg_t const lcd_pads[] = {
 471        MX6_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
 472        MX6_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
 473        MX6_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
 474        MX6_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
 475        MX6_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 476        MX6_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 477        MX6_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 478        MX6_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 479        MX6_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 480        MX6_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 481        MX6_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 482        MX6_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 483        MX6_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 484        MX6_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 485        MX6_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 486        MX6_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 487        MX6_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 488        MX6_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 489        MX6_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 490        MX6_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 491        MX6_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 492        MX6_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 493        MX6_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 494        MX6_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 495        MX6_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 496        MX6_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 497        MX6_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 498        MX6_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
 499        MX6_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),
 500
 501        /* Use GPIO for Brightness adjustment, duty cycle = period */
 502        MX6_PAD_SD1_DATA2__GPIO6_IO_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
 503};
 504
 505static int setup_lcd(void)
 506{
 507        enable_lcdif_clock(LCDIF1_BASE_ADDR, 1);
 508
 509        imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
 510
 511        /* Reset the LCD */
 512        gpio_direction_output(IMX_GPIO_NR(3, 27) , 0);
 513        udelay(500);
 514        gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);
 515
 516        /* Set Brightness to high */
 517        gpio_direction_output(IMX_GPIO_NR(6, 4) , 1);
 518
 519        return 0;
 520}
 521#endif
 522
 523int board_init(void)
 524{
 525        /* Address of boot parameters */
 526        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 527
 528#ifdef CONFIG_SYS_I2C_MXC
 529        setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 530#endif
 531
 532#ifdef CONFIG_FSL_QSPI
 533        board_qspi_init();
 534#endif
 535
 536#ifdef CONFIG_VIDEO_MXS
 537        setup_lcd();
 538#endif
 539
 540        return 0;
 541}
 542
 543int checkboard(void)
 544{
 545        puts("Board: MX6SX SABRE SDB\n");
 546
 547        return 0;
 548}
 549
 550#ifdef CONFIG_SPL_BUILD
 551#include <libfdt.h>
 552#include <spl.h>
 553#include <asm/arch/mx6-ddr.h>
 554
 555const struct mx6sx_iomux_ddr_regs mx6_ddr_ioregs = {
 556        .dram_dqm0 = 0x00000028,
 557        .dram_dqm1 = 0x00000028,
 558        .dram_dqm2 = 0x00000028,
 559        .dram_dqm3 = 0x00000028,
 560        .dram_ras = 0x00000020,
 561        .dram_cas = 0x00000020,
 562        .dram_odt0 = 0x00000020,
 563        .dram_odt1 = 0x00000020,
 564        .dram_sdba2 = 0x00000000,
 565        .dram_sdcke0 = 0x00003000,
 566        .dram_sdcke1 = 0x00003000,
 567        .dram_sdclk_0 = 0x00000030,
 568        .dram_sdqs0 = 0x00000028,
 569        .dram_sdqs1 = 0x00000028,
 570        .dram_sdqs2 = 0x00000028,
 571        .dram_sdqs3 = 0x00000028,
 572        .dram_reset = 0x00000020,
 573};
 574
 575const struct mx6sx_iomux_grp_regs mx6_grp_ioregs = {
 576        .grp_addds = 0x00000020,
 577        .grp_ddrmode_ctl = 0x00020000,
 578        .grp_ddrpke = 0x00000000,
 579        .grp_ddrmode = 0x00020000,
 580        .grp_b0ds = 0x00000028,
 581        .grp_b1ds = 0x00000028,
 582        .grp_ctlds = 0x00000020,
 583        .grp_ddr_type = 0x000c0000,
 584        .grp_b2ds = 0x00000028,
 585        .grp_b3ds = 0x00000028,
 586};
 587
 588const struct mx6_mmdc_calibration mx6_mmcd_calib = {
 589        .p0_mpwldectrl0 = 0x00290025,
 590        .p0_mpwldectrl1 = 0x00220022,
 591        .p0_mpdgctrl0 = 0x41480144,
 592        .p0_mpdgctrl1 = 0x01340130,
 593        .p0_mprddlctl = 0x3C3E4244,
 594        .p0_mpwrdlctl = 0x34363638,
 595};
 596
 597static struct mx6_ddr3_cfg mem_ddr = {
 598        .mem_speed = 1600,
 599        .density = 4,
 600        .width = 32,
 601        .banks = 8,
 602        .rowaddr = 15,
 603        .coladdr = 10,
 604        .pagesz = 2,
 605        .trcd = 1375,
 606        .trcmin = 4875,
 607        .trasmin = 3500,
 608};
 609
 610static void ccgr_init(void)
 611{
 612        struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 613
 614        writel(0xFFFFFFFF, &ccm->CCGR0);
 615        writel(0xFFFFFFFF, &ccm->CCGR1);
 616        writel(0xFFFFFFFF, &ccm->CCGR2);
 617        writel(0xFFFFFFFF, &ccm->CCGR3);
 618        writel(0xFFFFFFFF, &ccm->CCGR4);
 619        writel(0xFFFFFFFF, &ccm->CCGR5);
 620        writel(0xFFFFFFFF, &ccm->CCGR6);
 621        writel(0xFFFFFFFF, &ccm->CCGR7);
 622}
 623
 624static void spl_dram_init(void)
 625{
 626        struct mx6_ddr_sysinfo sysinfo = {
 627                .dsize = mem_ddr.width/32,
 628                .cs_density = 24,
 629                .ncs = 1,
 630                .cs1_mirror = 0,
 631                .rtt_wr = 2,
 632                .rtt_nom = 2,           /* RTT_Nom = RZQ/2 */
 633                .walat = 1,             /* Write additional latency */
 634                .ralat = 5,             /* Read additional latency */
 635                .mif3_mode = 3,         /* Command prediction working mode */
 636                .bi_on = 1,             /* Bank interleaving enabled */
 637                .sde_to_rst = 0x10,     /* 14 cycles, 200us (JEDEC default) */
 638                .rst_to_cke = 0x23,     /* 33 cycles, 500us (JEDEC default) */
 639                .ddr_type = DDR_TYPE_DDR3,
 640                .refsel = 1,    /* Refresh cycles at 32KHz */
 641                .refr = 7,      /* 8 refresh commands per refresh cycle */
 642        };
 643
 644        mx6sx_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs);
 645        mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
 646}
 647
 648void board_init_f(ulong dummy)
 649{
 650        /* setup AIPS and disable watchdog */
 651        arch_cpu_init();
 652
 653        ccgr_init();
 654
 655        /* iomux and setup of i2c */
 656        board_early_init_f();
 657
 658        /* setup GP timer */
 659        timer_init();
 660
 661        /* UART clocks enabled and gd valid - init serial console */
 662        preloader_console_init();
 663
 664        /* DDR initialization */
 665        spl_dram_init();
 666
 667        /* Clear the BSS. */
 668        memset(__bss_start, 0, __bss_end - __bss_start);
 669
 670        /* load/boot image from boot device */
 671        board_init_r(NULL, 0);
 672}
 673#endif
 674