board/freescale/mx6sxscm/mx6sxscm.c

/*
 * Copyright (C) 2016 Freescale Semiconductor, Inc.
 * Copyright 2017 NXP
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#include <asm/arch/clock.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/mx6-pins.h>
#include <asm/arch/sys_proto.h>
#include <asm/gpio.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/io.h>
#include <asm/imx-common/mxc_i2c.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <i2c.h>
#include <miiphy.h>
#include <netdev.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include "../common/pfuze.h"
#include <usb.h>
#include <usb/ehci-ci.h>
#include <asm/imx-common/video.h>
#include <micrel.h>

#ifdef CONFIG_IMX_RDC
#include <asm/imx-common/rdc-sema.h>
#include <asm/arch/imx-rdc.h>
#endif

#ifdef CONFIG_FSL_FASTBOOT
#include <fsl_fastboot.h>
#ifdef CONFIG_ANDROID_RECOVERY
#include <recovery.h>
#endif
#endif /*CONFIG_FSL_FASTBOOT*/

DECLARE_GLOBAL_DATA_PTR;
#define I2C_PMIC 1

#define UART_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_22K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
	PAD_CTL_ODE)

#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
	PAD_CTL_SPEED_HIGH   |                                   \
	PAD_CTL_DSE_48ohm   | PAD_CTL_SRE_FAST)

#define ENET_CLK_PAD_CTRL  (PAD_CTL_SPEED_MED | \
	PAD_CTL_DSE_120ohm   | PAD_CTL_SRE_FAST)

#define ENET_RX_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |          \
	PAD_CTL_SPEED_HIGH   | PAD_CTL_SRE_FAST)

#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
	PAD_CTL_ODE)

#define LCD_PAD_CTRL    (PAD_CTL_HYS | PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \
	PAD_CTL_PKE | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm)

#define BUTTON_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE | \
	PAD_CTL_PUS_22K_UP | PAD_CTL_DSE_40ohm)

#define WDOG_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PKE | PAD_CTL_SPEED_MED |	\
	PAD_CTL_DSE_40ohm)

#define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_47K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

int dram_init(void)
{
	gd->ram_size = imx_ddr_size();

	return 0;
}

static iomux_v3_cfg_t const uart3_pads[] = {
	MX6_PAD_QSPI1B_SS0_B__UART3_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_QSPI1B_SCLK__UART3_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc2_pads[] = {
	MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc3_pads[] = {
	MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),

	/* CD pin */
	MX6_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),

	/* RST_B, used for power reset cycle */
	MX6_PAD_KEY_COL1__GPIO2_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc4_pads[] = {
	MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA7__GPIO6_IO_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc4_emmc_pads[] = {
	MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA4__USDHC4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA5__USDHC4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA6__USDHC4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DATA7__USDHC4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_RESET_B__USDHC4_RESET_B | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const wdog_b_pad = {
	MX6_PAD_GPIO1_IO13__GPIO1_IO_13 | MUX_PAD_CTRL(WDOG_PAD_CTRL),
};

static iomux_v3_cfg_t const fec1_pads[] = {
	MX6_PAD_GPIO1_IO04__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_GPIO1_IO05__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
};

static iomux_v3_cfg_t const peri_3v3_pads[] = {
	MX6_PAD_QSPI1A_DATA0__GPIO4_IO_16 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
static iomux_v3_cfg_t const phy_control_pads[] = {
	/* 25MHz Ethernet PHY Clock */
	MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M |
	MUX_PAD_CTRL(ENET_CLK_PAD_CTRL),

	/* ENET PHY Power */
	MX6_PAD_QSPI1B_DATA1__GPIO4_IO_25 | MUX_PAD_CTRL(NO_PAD_CTRL),

	/* AR8031 PHY Reset */
	MX6_PAD_QSPI1B_DATA2__GPIO4_IO_26 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart3_pads, ARRAY_SIZE(uart3_pads));
}

static int setup_fec(int fec_id)
{
	struct iomuxc *iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
	struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR;
	int reg, ret;

	/* Use 125M anatop loopback REF_CLK1 for ENET1,
	 * clear gpr1[13], gpr1[17] */
	clrsetbits_le32(&iomuxc_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);

	ret = enable_fec_anatop_clock(fec_id, ENET_125MHZ);
	if (ret)
		return ret;

	imx_iomux_v3_setup_multiple_pads(phy_control_pads,
					 ARRAY_SIZE(phy_control_pads));

	/* Enable the ENET power, active low */
	gpio_request(IMX_GPIO_NR(4, 25), "fec power en");
	gpio_direction_output(IMX_GPIO_NR(4, 25) , 0);

	/* Reset AR8031 PHY */
	gpio_request(IMX_GPIO_NR(4, 26), "ar8031 reset");
	gpio_direction_output(IMX_GPIO_NR(4, 26) , 0);
	mdelay(10);
	gpio_set_value(IMX_GPIO_NR(4, 26), 1);

	reg = readl(&anatop->pll_enet);
	reg |= BM_ANADIG_PLL_ENET_REF_25M_ENABLE;
	writel(reg, &anatop->pll_enet);

	return 0;
}

int board_eth_init(bd_t *bis)
{
	imx_iomux_v3_setup_multiple_pads(fec1_pads,
					 ARRAY_SIZE(fec1_pads));

	return cpu_eth_init(bis);
}

int mx6_rgmii_rework(struct phy_device *phydev)
{
	/* add necessary delays for RGMII,
	 * there are no board skew delays added
	 * additional rx data delay = 0, rx clk delay = 0.3ns, total = 1.5ns
	 * additional tx data delay = -0.42ns, tx clk delay = 0.96ns,
	 * total = 1.38ns
	 */

	if (ksz9031_phy_extended_write(phydev, 0x2,
				       MII_KSZ9031_EXT_RGMII_CTRL_SIG_SKEW,
				       MII_KSZ9031_MOD_DATA_NO_POST_INC,
				       0x0070))
		return -EIO;

	if (ksz9031_phy_extended_write(phydev, 0x2,
				       MII_KSZ9031_EXT_RGMII_RX_DATA_SKEW,
				       MII_KSZ9031_MOD_DATA_NO_POST_INC,
				       0x7777))
		return -EIO;

	if (ksz9031_phy_extended_write(phydev, 0x2,
				       MII_KSZ9031_EXT_RGMII_TX_DATA_SKEW,
				       MII_KSZ9031_MOD_DATA_NO_POST_INC,
				       0x0000))
		return -EIO;

	if (ksz9031_phy_extended_write(phydev, 0x2,
				       MII_KSZ9031_EXT_RGMII_CLOCK_SKEW,
				       MII_KSZ9031_MOD_DATA_NO_POST_INC,
				       0x03f4))
		return -EIO;

	return 0;
}

#ifdef CONFIG_SYS_I2C
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC */
static struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode = MX6_PAD_GPIO1_IO00__I2C1_SCL | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
		.gp = IMX_GPIO_NR(1, 0),
	},
	.sda = {
		.i2c_mode = MX6_PAD_GPIO1_IO01__I2C1_SDA | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
		.gp = IMX_GPIO_NR(1, 1),
	},
};

/* I2C2 */
struct i2c_pads_info i2c_pad_info2 = {
	.scl = {
		.i2c_mode = MX6_PAD_GPIO1_IO02__I2C2_SCL | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO_2 | PC,
		.gp = IMX_GPIO_NR(1, 2),
	},
	.sda = {
		.i2c_mode = MX6_PAD_GPIO1_IO03__I2C2_SDA | PC,
		.gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO_3 | PC,
		.gp = IMX_GPIO_NR(1, 3),
	},
};

/* I2C4 */
struct i2c_pads_info i2c_pad_info4 = {
	.scl = {
		.i2c_mode = MX6_PAD_CSI_DATA06__I2C4_SCL | PC,
		.gpio_mode = MX6_PAD_CSI_DATA06__GPIO1_IO_20 | PC,
		.gp = IMX_GPIO_NR(1, 20),
	},
	.sda = {
		.i2c_mode = MX6_PAD_CSI_DATA07__I2C4_SDA | PC,
		.gpio_mode = MX6_PAD_CSI_DATA07__GPIO1_IO_21 | PC,
		.gp = IMX_GPIO_NR(1, 21),
	},
};
#endif

#ifdef CONFIG_POWER
int power_init_board(void)
{
	struct pmic *pfuze;
	unsigned int reg;
	int ret;

	pfuze = pfuze_common_init(I2C_PMIC);
	if (!pfuze)
		return -ENODEV;

	ret = pfuze_mode_init(pfuze, APS_PFM);
	if (ret < 0)
		return ret;
	/* set SW3A to 1.2V for LPDDR2 */
	pmic_reg_read(pfuze, PFUZE100_SW3AVOL, &reg);
	reg &= ~0x3f;
	reg |= 0x20;
	pmic_reg_write(pfuze, PFUZE100_SW3AVOL, reg);

	/* set SW3A standby volatage 1.2V */
	pmic_reg_read(pfuze, PFUZE100_SW3ASTBY, &reg);
	reg &= ~0x3f;
	reg |= 0x20;
	pmic_reg_write(pfuze, PFUZE100_SW3ASTBY, reg);

	/* set SW1AB normal volatage 1.350V */
	pmic_reg_read(pfuze, PFUZE100_SW1ABVOL, &reg);
	reg &= ~0x3f;
	reg |= PFUZE100_SW1ABC_SETP(13500);
	pmic_reg_write(pfuze, PFUZE100_SW1ABVOL, reg);

	/* set SW1AB standby volatage 1.10V */
	pmic_reg_read(pfuze, PFUZE100_SW1ABSTBY, &reg);
	reg &= ~0x3f;
	reg |= PFUZE100_SW1ABC_SETP(11000);
	pmic_reg_write(pfuze, PFUZE100_SW1ABSTBY, reg);

	/* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
	pmic_reg_read(pfuze, PFUZE100_SW1ABCONF, &reg);
	reg &= ~0xc0;
	reg |= 0x40;
	pmic_reg_write(pfuze, PFUZE100_SW1ABCONF, reg);

	pmic_reg_read(pfuze, PFUZE100_VGEN3VOL, &reg);
	reg &= ~LDO_VOL_MASK;
	reg |= (LDOB_2_80V | (1 << LDO_EN));
	pmic_reg_write(pfuze, PFUZE100_VGEN3VOL, reg);

	/* set SWBST boost regulator mode */
	pmic_reg_read(pfuze, PFUZE100_SWBSTCON1, &reg);
	reg &= ~SWBST_MODE_MASK;
	reg |= SWBST_MODE_AUTO << SWBST_MODE_SHIFT;
	reg |= 0x40;
	pmic_reg_write(pfuze, PFUZE100_SWBSTCON1, reg);

	return 0;
}
#elif defined(CONFIG_DM_PMIC_PFUZE100)
int power_init_board(void)
{
	struct udevice *dev;
	unsigned int reg;
	int ret;

	dev = pfuze_common_init();
	if (!dev)
		return -ENODEV;

	ret = pfuze_mode_init(dev, APS_PFM);
	if (ret < 0)
		return ret;
	/* set SW3A to 1.2V for LPDDR2 */
	reg = pmic_reg_read(dev, PFUZE100_SW3AVOL);
	reg &= ~0x3f;
	reg |= 0x20;
	pmic_reg_write(dev, PFUZE100_SW3AVOL, reg);

	/* set SW3A standby volatage 1.2V */
	reg = pmic_reg_read(dev, PFUZE100_SW3ASTBY);
	reg &= ~0x3f;
	reg |= 0x20;
	pmic_reg_write(dev, PFUZE100_SW3ASTBY, reg);

	/* set SW1AB normal volatage 1.350V */
	reg = pmic_reg_read(dev, PFUZE100_SW1ABVOL);
	reg &= ~0x3f;
	reg |= PFUZE100_SW1ABC_SETP(13500);
	pmic_reg_write(dev, PFUZE100_SW1ABVOL, reg);

	/* set SW1AB standby volatage 1.10V */
	reg = pmic_reg_read(dev, PFUZE100_SW1ABSTBY);
	reg &= ~0x3f;
	reg |= PFUZE100_SW1ABC_SETP(11000);
	pmic_reg_write(dev, PFUZE100_SW1ABSTBY, reg);

	/* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
	reg = pmic_reg_read(dev, PFUZE100_SW1ABCONF);
	reg &= ~0xc0;
	reg |= 0x40;
	pmic_reg_write(dev, PFUZE100_SW1ABCONF, reg);

	reg = pmic_reg_read(dev, PFUZE100_VGEN3VOL);
	reg &= ~LDO_VOL_MASK;
	reg |= (LDOB_2_80V | (1 << LDO_EN));
	pmic_reg_write(dev, PFUZE100_VGEN3VOL, reg);

	/* set SWBST boost regulator mode */
	reg = pmic_reg_read(dev, PFUZE100_SWBSTCON1);
	reg &= ~SWBST_MODE_MASK;
	reg |= SWBST_MODE_AUTO << SWBST_MODE_SHIFT;
	reg |= 0x40;
	pmic_reg_write(dev, PFUZE100_SWBSTCON1, reg);

	return 0;
}
#endif

#ifdef CONFIG_LDO_BYPASS_CHECK
#ifdef CONFIG_POWER
void ldo_mode_set(int ldo_bypass)
{
	unsigned int value;
	int is_400M;
	u32 vddarm;
	struct pmic *p = pmic_get("PFUZE100");

	if (!p) {
		printf("No PMIC found!\n");
		return;
	}

	/* switch to ldo_bypass mode */
	if (ldo_bypass) {
		prep_anatop_bypass();
		/* decrease VDDARM to 1.275V */
		pmic_reg_read(p, PFUZE100_SW1ABVOL, &value);
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(12750);
		pmic_reg_write(p, PFUZE100_SW1ABVOL, value);

		/* decrease VDDSOC to 1.3V */
		pmic_reg_read(p, PFUZE100_SW1CVOL, &value);
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(13000);
		pmic_reg_write(p, PFUZE100_SW1CVOL, value);

		is_400M = set_anatop_bypass(1);
		if (is_400M)
			vddarm = PFUZE100_SW1ABC_SETP(10750);
		else
			vddarm = PFUZE100_SW1ABC_SETP(11750);

		pmic_reg_read(p, PFUZE100_SW1ABVOL, &value);
		value &= ~0x3f;
		value |= vddarm;
		pmic_reg_write(p, PFUZE100_SW1ABVOL, value);

		pmic_reg_read(p, PFUZE100_SW1CVOL, &value);
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(11750);
		pmic_reg_write(p, PFUZE100_SW1CVOL, value);

		finish_anatop_bypass();
		printf("switch to ldo_bypass mode!\n");
	}
}
#elif defined(CONFIG_DM_PMIC_PFUZE100)
void ldo_mode_set(int ldo_bypass)
{
	struct udevice *dev;
	int ret;
	int is_400M;
	u32 vddarm;

	ret = pmic_get("pfuze100", &dev);

	if (ret == -ENODEV) {
		printf("No PMIC found!\n");
		return;
	}

	/* switch to ldo_bypass mode */
	if (ldo_bypass) {
		prep_anatop_bypass();
		/* decrease VDDARM to 1.275V */
		pmic_clrsetbits(dev, PFUZE100_SW1ABVOL, 0x3f,
				PFUZE100_SW1ABC_SETP(12750));

		/* decrease VDDSOC to 1.3V */
		pmic_clrsetbits(dev, PFUZE100_SW1CVOL, 0x3f,
				PFUZE100_SW1ABC_SETP(13000));

		is_400M = set_anatop_bypass(1);
		if (is_400M)
			vddarm = PFUZE100_SW1ABC_SETP(10750);
		else
			vddarm = PFUZE100_SW1ABC_SETP(11750);

		pmic_clrsetbits(dev, PFUZE100_SW1ABVOL, 0x3f, vddarm);

		/* decrease VDDSOC to 1.175V */
		pmic_clrsetbits(dev, PFUZE100_SW1CVOL, 0x3f,
				PFUZE100_SW1ABC_SETP(11750));

		finish_anatop_bypass();
		printf("switch to ldo_bypass mode!\n");
	}
}
#endif
#endif

#ifdef CONFIG_USB_EHCI_MX6
#ifndef CONFIG_DM_USB

#define USB_OTHERREGS_OFFSET	0x800
#define UCTRL_PWR_POL		(1 << 9)

static iomux_v3_cfg_t const usb_otg_pads[] = {
	/* OGT1 */
	MX6_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
	/* OTG2 */
	MX6_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL)
};

static void setup_usb(void)
{
	imx_iomux_v3_setup_multiple_pads(usb_otg_pads,
					 ARRAY_SIZE(usb_otg_pads));
}

int board_usb_phy_mode(int port)
{
	if (port == 1)
		return USB_INIT_HOST;
	else
		return usb_phy_mode(port);
}

int board_ehci_hcd_init(int port)
{
	u32 *usbnc_usb_ctrl;

	if (port > 1)
		return -EINVAL;

	usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET +
				 port * 4);

	/* Set Power polarity */
	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);

	return 0;
}
#endif
#endif

int board_phy_config(struct phy_device *phydev)
{
	mx6_rgmii_rework(phydev);

	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}
int board_early_init_f(void)
{
#ifdef CONFIG_IMX_RDC
	imx_rdc_setup_peripherals(shared_resources,
				  ARRAY_SIZE(shared_resources));
#endif

#ifdef CONFIG_SYS_AUXCORE_FASTUP
	arch_auxiliary_core_up(0, CONFIG_SYS_AUXCORE_BOOTDATA);
#endif

	setup_iomux_uart();

	return 0;
}

static struct fsl_esdhc_cfg usdhc_cfg[3] = {
	{USDHC2_BASE_ADDR, 0, 4},
	{USDHC3_BASE_ADDR},
#ifdef CONFIG_MX6SXSCM_EMMC
	{USDHC4_BASE_ADDR, 0, 8},
#else
	{USDHC4_BASE_ADDR},
#endif
};

#define USDHC3_CD_GPIO	IMX_GPIO_NR(2, 10)
#define USDHC3_PWR_GPIO	IMX_GPIO_NR(2, 11)
#define USDHC4_CD_GPIO	IMX_GPIO_NR(6, 21)

int board_mmc_get_env_dev(int devno)
{
	return devno - 1;
}

int mmc_map_to_kernel_blk(int dev_no)
{
	return dev_no + 1;
}

int board_mmc_getcd(struct mmc *mmc)
{
	struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
	int ret = 0;

	switch (cfg->esdhc_base) {
	case USDHC2_BASE_ADDR:
		ret = 1; /* Assume uSDHC2 is always present */
		break;
	case USDHC3_BASE_ADDR:
	ret = 1; /* Assume uSDHC3 is always present */
		break;
	case USDHC4_BASE_ADDR:
#ifdef CONFIG_MX6SXSCM_EMMC
		ret = 1;
#else
		ret = !gpio_get_value(USDHC4_CD_GPIO);
#endif
		break;
	}

	return ret;
}

int board_mmc_init(bd_t *bis)
{
	int i, ret;

	/*
	 * According to the board_mmc_init() the following map is done:
	 * (U-Boot device node)    (Physical Port)
	 * mmc0                    USDHC2
	 * mmc1                    USDHC3
	 * mmc2                    USDHC4
	 */
	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
		switch (i) {
		case 0:
			imx_iomux_v3_setup_multiple_pads(
				usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
			usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
			break;
		case 1:
			imx_iomux_v3_setup_multiple_pads(
				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
			gpio_request(USDHC3_CD_GPIO, "usdhc3 cd");
			gpio_request(USDHC3_PWR_GPIO, "usdhc3 pwr");
			gpio_direction_input(USDHC3_CD_GPIO);
			gpio_direction_output(USDHC3_PWR_GPIO, 1);
			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
			break;
		case 2:
#ifdef CONFIG_MX6SXSCM_EMMC
			imx_iomux_v3_setup_multiple_pads(
				usdhc4_emmc_pads, ARRAY_SIZE(usdhc4_emmc_pads));
#else
			imx_iomux_v3_setup_multiple_pads(
				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
			gpio_request(USDHC4_CD_GPIO, "usdhc4 cd");
			gpio_direction_input(USDHC4_CD_GPIO);
#endif
			usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
			break;
		default:
			printf("Warning: you configured more ");
			printf("USDHC controllers ");
			printf("(%d) than supported by the board\n", i + 1);
			return -EINVAL;
		}

		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
		if (ret) {
			printf("Warning: failed to initialize mmc dev %d\n", i);
			return ret;
		}
	}

	return 0;
}

#ifdef CONFIG_FSL_QSPI

#ifndef CONFIG_DM_SPI
#define QSPI_PAD_CTRL1	\
	(PAD_CTL_SRE_FAST | PAD_CTL_SPEED_HIGH | \
	 PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_47K_UP | PAD_CTL_DSE_40ohm)

static iomux_v3_cfg_t const quadspi_pads[] = {
	MX6_PAD_NAND_WP_B__QSPI2_A_DATA_0	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_READY_B__QSPI2_A_DATA_1	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CE0_B__QSPI2_A_DATA_2	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CE1_B__QSPI2_A_DATA_3	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_ALE__QSPI2_A_SS0_B		| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_CLE__QSPI2_A_SCLK		| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DATA01__QSPI2_B_DATA_0	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DATA00__QSPI2_B_DATA_1	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_WE_B__QSPI2_B_DATA_2	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_RE_B__QSPI2_B_DATA_3	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DATA03__QSPI2_B_SS0_B	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DATA02__QSPI2_B_SCLK	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6_PAD_NAND_DATA05__QSPI2_B_DQS	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
};
#endif

int board_qspi_init(void)
{
#ifndef CONFIG_DM_SPI
	/* Set the iomux */
	imx_iomux_v3_setup_multiple_pads(quadspi_pads,
					 ARRAY_SIZE(quadspi_pads));
#endif
	/* Set the clock */
	enable_qspi_clk(1);

	return 0;
}
#endif

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"sd3", MAKE_CFGVAL(0x42, 0x30, 0x00, 0x00)},
	{"sd4", MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
	{"qspi2", MAKE_CFGVAL(0x18, 0x00, 0x00, 0x00)},
	{NULL,	 0},
};
#endif

#ifdef CONFIG_VIDEO_MXS
static iomux_v3_cfg_t const lvds_ctrl_pads[] = {
	/* CABC enable */
	MX6_PAD_QSPI1A_DATA2__GPIO4_IO_18 | MUX_PAD_CTRL(NO_PAD_CTRL),

	/* Use GPIO for Brightness adjustment, duty cycle = period */
	MX6_PAD_NAND_DATA07__GPIO4_IO_11 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const lcd_pads[] = {
	MX6_PAD_LCD1_CLK__LCDIF1_CLK | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_ENABLE__LCDIF1_ENABLE | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_HSYNC__LCDIF1_HSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_VSYNC__LCDIF1_VSYNC | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA00__LCDIF1_DATA_0 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA01__LCDIF1_DATA_1 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA02__LCDIF1_DATA_2 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA03__LCDIF1_DATA_3 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA04__LCDIF1_DATA_4 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA05__LCDIF1_DATA_5 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA06__LCDIF1_DATA_6 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA07__LCDIF1_DATA_7 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA08__LCDIF1_DATA_8 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA09__LCDIF1_DATA_9 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA10__LCDIF1_DATA_10 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA11__LCDIF1_DATA_11 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA12__LCDIF1_DATA_12 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA13__LCDIF1_DATA_13 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA14__LCDIF1_DATA_14 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA15__LCDIF1_DATA_15 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA16__LCDIF1_DATA_16 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA17__LCDIF1_DATA_17 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA18__LCDIF1_DATA_18 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA19__LCDIF1_DATA_19 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA20__LCDIF1_DATA_20 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA21__LCDIF1_DATA_21 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA22__LCDIF1_DATA_22 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_DATA23__LCDIF1_DATA_23 | MUX_PAD_CTRL(LCD_PAD_CTRL),
	MX6_PAD_LCD1_RESET__GPIO3_IO_27 | MUX_PAD_CTRL(NO_PAD_CTRL),

	/* Use GPIO for Brightness adjustment, duty cycle = period */
	MX6_PAD_NAND_DATA06__GPIO4_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

void do_enable_lvds(struct display_info_t const *dev)
{
	int ret;

	ret = enable_lcdif_clock(dev->bus, 1);
	if (ret) {
		printf("Enable LCDIF clock failed, %d\n", ret);
		return;
	}
	ret = enable_lvds_bridge(dev->bus);
	if (ret) {
		printf("Enable LVDS bridge failed, %d\n", ret);
		return;
	}

	imx_iomux_v3_setup_multiple_pads(lvds_ctrl_pads,
					 ARRAY_SIZE(lvds_ctrl_pads));

	/* Enable CABC */
	gpio_request(IMX_GPIO_NR(4, 18), "CABC enable");
	gpio_direction_output(IMX_GPIO_NR(4, 18) , 1);

	/* Set Brightness to high */
	gpio_request(IMX_GPIO_NR(4, 11), "lvds backlight");
	gpio_direction_output(IMX_GPIO_NR(4, 11) , 1);
}

void do_enable_parallel_lcd(struct display_info_t const *dev)

{
	int ret;

	ret = enable_lcdif_clock(dev->bus, 1);
	if (ret) {
		printf("Enable LCDIF clock failed, %d\n", ret);
		return;
	}

	imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));

	/* Reset the LCD */
	gpio_request(IMX_GPIO_NR(3, 27), "lcd reset");
	gpio_direction_output(IMX_GPIO_NR(3, 27) , 0);
	udelay(500);
	gpio_direction_output(IMX_GPIO_NR(3, 27) , 1);

	/* Set Brightness to high */
	gpio_request(IMX_GPIO_NR(4, 10), "lcd backlight");
	gpio_direction_output(IMX_GPIO_NR(4, 10) , 1);
}

struct display_info_t const displays[] = {{
	.bus = LCDIF2_BASE_ADDR,
	.addr = 0,
	.pixfmt = 18,
	.detect = NULL,
	.enable	= do_enable_lvds,
	.mode	= {
		.name			= "Hannstar-XGA",
		.xres           = 1024,
		.yres           = 768,
		.pixclock       = 15385,
		.left_margin    = 220,
		.right_margin   = 40,
		.upper_margin   = 21,
		.lower_margin   = 7,
		.hsync_len      = 60,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus = MX6SX_LCDIF1_BASE_ADDR,
	.addr = 0,
	.pixfmt = 24,
	.detect = NULL,
	.enable	= do_enable_parallel_lcd,
	.mode	= {
		.name			= "MCIMX28LCD",
		.xres           = 800,
		.yres           = 480,
		.pixclock       = 29850,
		.left_margin    = 89,
		.right_margin   = 164,
		.upper_margin   = 23,
		.lower_margin   = 10,
		.hsync_len      = 10,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} } };
size_t display_count = ARRAY_SIZE(displays);
#endif
int board_init(void)
{
	/* Address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

	/*
	 * Because kernel set WDOG_B mux before pad with the commone pinctrl
	 * framwork now and wdog reset will be triggered once set WDOG_B mux
	 * with default pad setting, we set pad setting here to workaround this.
	 * Since imx_iomux_v3_setup_pad also set mux before pad setting, we set
	 * as GPIO mux firstly here to workaround it.
	 */
	imx_iomux_v3_setup_pad(wdog_b_pad);

	/* Enable PERI_3V3, which is used by SD2, ENET, LVDS, BT */
	imx_iomux_v3_setup_multiple_pads(peri_3v3_pads,
					 ARRAY_SIZE(peri_3v3_pads));

	/* Active high for ncp692 */
	gpio_request(IMX_GPIO_NR(4, 16), "peri_3v3");
	gpio_direction_output(IMX_GPIO_NR(4, 16) , 1);

#ifdef CONFIG_SYS_I2C
	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
	setup_i2c(3, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info4);
#endif

#ifdef CONFIG_USB_EHCI_MX6
#ifndef CONFIG_DM_USB
	setup_usb();
#endif
#endif

#ifdef CONFIG_FSL_QSPI
	board_qspi_init();
#endif

	/* Also used for OF_CONTROL enabled */
#ifdef CONFIG_FEC_MXC
	setup_fec(CONFIG_FEC_ENET_DEV);
#endif

	return 0;
}

int board_late_init(void)
{
#ifdef CONFIG_CMD_BMODE
	add_board_boot_modes(board_boot_modes);
#endif

#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_env_init();
#endif

	return 0;
}

int checkboard(void)
{
	puts("Board: MX6SXSCM EVB\n");

	return 0;
}

#ifdef CONFIG_FSL_FASTBOOT

void board_fastboot_setup(void)
{
	switch (get_boot_device()) {
#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
	case SD2_BOOT:
	case MMC2_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "mmc0");
		if (!getenv("bootcmd"))
			setenv("bootcmd", "boota mmc0");
		break;
	case SD3_BOOT:
	case MMC3_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "mmc1");
		if (!getenv("bootcmd"))
			setenv("bootcmd", "boota mmc1");
		break;
	case SD4_BOOT:
	case MMC4_BOOT:
		if (!getenv("fastboot_dev"))
			setenv("fastboot_dev", "mmc2");
		if (!getenv("bootcmd"))
			setenv("bootcmd", "boota mmc2");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
	default:
		printf("unsupported boot devices\n");
		break;
	}
}

#ifdef CONFIG_ANDROID_RECOVERY

#define GPIO_VOL_DN_KEY IMX_GPIO_NR(1, 19)
iomux_v3_cfg_t const recovery_key_pads[] = {
	(MX6_PAD_CSI_DATA05__GPIO1_IO_19 | MUX_PAD_CTRL(BUTTON_PAD_CTRL)),
};

int check_recovery_cmd_file(void)
{
	int button_pressed = 0;
	int recovery_mode = 0;

	recovery_mode = recovery_check_and_clean_flag();

	/* Check Recovery Combo Button press or not. */
	imx_iomux_v3_setup_multiple_pads(recovery_key_pads,
					 ARRAY_SIZE(recovery_key_pads));

	gpio_request(GPIO_VOL_DN_KEY, "volume_dn_key");
	gpio_direction_input(GPIO_VOL_DN_KEY);

	/* VOL_DN key is low assert */
	if (gpio_get_value(GPIO_VOL_DN_KEY) == 0) {
		button_pressed = 1;
		printf("Recovery key pressed\n");
	}

	return recovery_mode || button_pressed;
}

void board_recovery_setup(void)
{
	int bootdev = get_boot_device();

	switch (bootdev) {
#if defined(CONFIG_FASTBOOT_STORAGE_MMC)
	case SD2_BOOT:
	case MMC2_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery",
			       "boota mmc0 recovery");
		break;
	case SD3_BOOT:
	case MMC3_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery",
			       "boota mmc1 recovery");
		break;
	case SD4_BOOT:
	case MMC4_BOOT:
		if (!getenv("bootcmd_android_recovery"))
			setenv("bootcmd_android_recovery",
			       "boota mmc2 recovery");
		break;
#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/
	default:
		printf("Unsupported bootup device for recovery: dev: %d\n",
		       bootdev);
		return;
	}

	printf("setup env for recovery..\n");
	setenv("bootcmd", "run bootcmd_android_recovery");
}
#endif /*CONFIG_ANDROID_RECOVERY*/

#endif /*CONFIG_FSL_FASTBOOT*/