/*
 * Copyright (C) 2014 Freescale Semiconductor, Inc.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <asm/arch/clock.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/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
#include <asm/io.h>
#include <linux/sizes.h>
#include <common.h>
#include <fsl_esdhc.h>
#include <mmc.h>
#include <miiphy.h>
#include <netdev.h>
#ifdef CONFIG_SYS_I2C_MXC
#include <i2c.h>
#include <asm/imx-common/mxc_i2c.h>
#endif
#include <asm/arch/crm_regs.h>

DECLARE_GLOBAL_DATA_PTR;

#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_47K_UP  | PAD_CTL_SPEED_LOW |		\
	PAD_CTL_DSE_80ohm   | PAD_CTL_SRE_FAST  | PAD_CTL_HYS)

#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE |     \
	PAD_CTL_SPEED_MED   |                                   \
	PAD_CTL_DSE_40ohm   | PAD_CTL_SRE_FAST)

#define ENET_RX_PAD_CTRL  (PAD_CTL_PKE | PAD_CTL_PUE |          \
	PAD_CTL_SPEED_MED   | 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 EPDC_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_SPEED_MED |	\
	PAD_CTL_DSE_40ohm | PAD_CTL_HYS)

#define GPMI_PAD_CTRL0 (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP)
#define GPMI_PAD_CTRL1 (PAD_CTL_DSE_40ohm | PAD_CTL_SPEED_MED | \
			PAD_CTL_SRE_FAST)
#define GPMI_PAD_CTRL2 (GPMI_PAD_CTRL0 | GPMI_PAD_CTRL1)

#define SPI_PAD_CTRL (PAD_CTL_HYS |				\
	PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)


#ifdef CONFIG_SYS_I2C_MXC
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
/* I2C1 for PMIC */
struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode = MX6SX_PAD_GPIO1_IO00__I2C1_SCL | PC,
		.gpio_mode = MX6SX_PAD_GPIO1_IO00__GPIO1_IO_0 | PC,
		.gp = IMX_GPIO_NR(1, 0),
	},
	.sda = {
		.i2c_mode = MX6SX_PAD_GPIO1_IO01__I2C1_SDA | PC,
		.gpio_mode = MX6SX_PAD_GPIO1_IO01__GPIO1_IO_1 | PC,
		.gp = IMX_GPIO_NR(1, 1),
	},
};

/* I2C2 */
struct i2c_pads_info i2c_pad_info2 = {
	.scl = {
		.i2c_mode = MX6SX_PAD_GPIO1_IO02__I2C2_SCL | PC,
		.gpio_mode = MX6SX_PAD_GPIO1_IO02__GPIO1_IO_2 | PC,
		.gp = IMX_GPIO_NR(1, 2),
	},
	.sda = {
		.i2c_mode = MX6SX_PAD_GPIO1_IO03__I2C2_SDA | PC,
		.gpio_mode = MX6SX_PAD_GPIO1_IO03__GPIO1_IO_3 | PC,
		.gp = IMX_GPIO_NR(1, 3),
	},
};
#endif

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

	return 0;
}

static iomux_v3_cfg_t const uart1_pads[] = {
	MX6SX_PAD_GPIO1_IO04__UART1_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6SX_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc2_pads[] = {
	MX6SX_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc3_pads[] = {
	MX6SX_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA0__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA1__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA2__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA3__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA4__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA5__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA6__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD3_DATA7__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),

	/*CD pin*/
	MX6SX_PAD_KEY_COL0__GPIO2_IO_10 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

static iomux_v3_cfg_t const usdhc4_pads[] = {
	MX6SX_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA0__USDHC4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA1__USDHC4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA2__USDHC4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA3__USDHC4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA4__USDHC4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA5__USDHC4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA6__USDHC4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6SX_PAD_SD4_DATA7__USDHC4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

#ifdef CONFIG_FEC_MXC
static iomux_v3_cfg_t const fec1_pads[] = {
	MX6SX_PAD_ENET1_MDC__ENET1_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_ENET1_MDIO__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_RX_CTL__ENET1_RX_EN | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_RD0__ENET1_RX_DATA_0 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_RD1__ENET1_RX_DATA_1 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_RD2__ENET1_RX_DATA_2 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_RD3__ENET1_RX_DATA_3 | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_RXC__ENET1_RX_CLK | MUX_PAD_CTRL(ENET_RX_PAD_CTRL),
	MX6SX_PAD_RGMII1_TX_CTL__ENET1_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_TD0__ENET1_TX_DATA_0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_TD1__ENET1_TX_DATA_1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_TD2__ENET1_TX_DATA_2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_TD3__ENET1_TX_DATA_3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6SX_PAD_RGMII1_TXC__ENET1_RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL),

	/* AR8031 PHY Reset. For arm2 board, silder the resistance */
	MX6SX_PAD_QSPI1A_SS0_B__GPIO4_IO_22 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_fec1(void)
{
	imx_iomux_v3_setup_multiple_pads(fec1_pads, ARRAY_SIZE(fec1_pads));

	/* Reset AR8031 PHY */
	gpio_direction_output(IMX_GPIO_NR(4, 22) , 0);
	udelay(500);
	gpio_set_value(IMX_GPIO_NR(4, 22), 1);
}
#endif

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
}

#ifdef CONFIG_QSPI

#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_34ohm)

#define QSPI_PAD_CTRL2 (QSPI_PAD_CTRL1 | PAD_CTL_DSE_34ohm)

static iomux_v3_cfg_t const quadspi_pads[] = {
	MX6SX_PAD_NAND_WP_B__QSPI2_A_DATA_0 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_READY_B__QSPI2_A_DATA_1 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_CE0_B__QSPI2_A_DATA_2 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_CE1_B__QSPI2_A_DATA_3 | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_CLE__QSPI2_A_SCLK | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_ALE__QSPI2_A_SS0_B | MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_DATA01__QSPI2_B_DATA_0	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_DATA00__QSPI2_B_DATA_1	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_WE_B__QSPI2_B_DATA_2		| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_RE_B__QSPI2_B_DATA_3		| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_DATA03__QSPI2_B_SS0_B	| MUX_PAD_CTRL(QSPI_PAD_CTRL1),
	MX6SX_PAD_NAND_DATA02__QSPI2_B_SCLK		| MUX_PAD_CTRL(QSPI_PAD_CTRL1),

};

int board_qspi_init(void)
{
	/* Set the iomux */
	imx_iomux_v3_setup_multiple_pads(quadspi_pads, ARRAY_SIZE(quadspi_pads));

	/* Set the clock */
	enable_qspi_clk(1);

	return 0;
}
#endif

#ifdef CONFIG_FSL_ESDHC
static struct fsl_esdhc_cfg usdhc_cfg[3] = {
	{USDHC2_BASE_ADDR, 0, 4},
	{USDHC3_BASE_ADDR},
	{USDHC4_BASE_ADDR},
};

#define USDHC3_CD_GPIO	IMX_GPIO_NR(2, 10)

int mmc_get_env_devno(void)
{
	u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4);
	u32 dev_no;

	/* BOOT_CFG2[3] and BOOT_CFG2[4] */
	dev_no = (soc_sbmr & 0x00001800) >> 11;

	/* need ubstract 2 to map to the mmc device id
	 * see the comments in board_mmc_init function
	 */

	dev_no--;

	return dev_no;
}

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; /*always present */
		break;
	case USDHC3_BASE_ADDR:
		ret = !gpio_get_value(USDHC3_CD_GPIO);
		break;
	case USDHC4_BASE_ADDR:
		ret = 1; /*always present */
		break;
	}

	return ret;
}

#ifdef CONFIG_SYS_USE_SPINOR
int board_mmc_init(bd_t *bis)
{
	int i;

	/*
	 * According to the board_mmc_init() the following map is done:
	 * (U-boot device node)    (Physical Port)
	 * mmc0                    SD3 (SDB)
	 * mmc1                    eMMC
	 */
	for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) {
		switch (i) {
		case 0:
			imx_iomux_v3_setup_multiple_pads(
				usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
			gpio_direction_input(USDHC3_CD_GPIO);
			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
			break;
		case 1:
			imx_iomux_v3_setup_multiple_pads(
				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
			usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
			break;
		default:
			printf("Warning: you configured more USDHC controllers"
				"(%d) than supported by the board\n", i + 1);
			return 0;
		}

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

	return 0;
}

#else
int board_mmc_init(bd_t *bis)
{
	int i;

	/*
	 * According to the board_mmc_init() the following map is done:
	 * (U-boot device node)    (Physical Port)
	 * mmc0                    SD2 (SDA)
	 * mmc1                    SD3 (SDB)
	 * mmc2                    eMMC
	 */
	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_direction_input(USDHC3_CD_GPIO);
			usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
			break;
		case 2:
			imx_iomux_v3_setup_multiple_pads(
				usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
			usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
			break;
		default:
			printf("Warning: you configured more USDHC controllers"
				"(%d) than supported by the board\n", i + 1);
			return 0;
		}

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

	return 0;
}
#endif

void board_late_mmc_init(void)
{
	char cmd[32];
	u32 dev_no = mmc_get_env_devno();

	setenv_ulong("mmcdev", dev_no);

	sprintf(cmd, "mmc dev %d", dev_no);
	run_command(cmd, 0);
}

#endif

#ifdef CONFIG_SYS_USE_SPINOR
iomux_v3_cfg_t const ecspi4_pads[] = {
	MX6SX_PAD_SD2_CLK__ECSPI4_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6SX_PAD_SD2_DATA3__ECSPI4_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6SX_PAD_SD2_CMD__ECSPI4_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6SX_PAD_SD2_DATA2__GPIO6_IO_10 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

void setup_spinor(void)
{
	imx_iomux_v3_setup_multiple_pads(ecspi4_pads,
					 ARRAY_SIZE(ecspi4_pads));
	gpio_direction_output(IMX_GPIO_NR(6, 10), 0);
}
#endif

#ifdef CONFIG_SYS_USE_NAND
iomux_v3_cfg_t gpmi_pads[] = {
	MX6SX_PAD_NAND_CLE__RAWNAND_CLE		| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_ALE__RAWNAND_ALE		| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_WP_B__RAWNAND_WP_B	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_READY_B__RAWNAND_READY_B	| MUX_PAD_CTRL(GPMI_PAD_CTRL0),
	MX6SX_PAD_NAND_CE0_B__RAWNAND_CE0_B		| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_RE_B__RAWNAND_RE_B		| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_WE_B__RAWNAND_WE_B		| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA00__RAWNAND_DATA00	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA01__RAWNAND_DATA01	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA02__RAWNAND_DATA02	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA03__RAWNAND_DATA03	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA04__RAWNAND_DATA04	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA05__RAWNAND_DATA05	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA06__RAWNAND_DATA06	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
	MX6SX_PAD_NAND_DATA07__RAWNAND_DATA07	| MUX_PAD_CTRL(GPMI_PAD_CTRL2),
};

static void setup_gpmi_nand(void)
{
	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

	/* config gpmi nand iomux */
	imx_iomux_v3_setup_multiple_pads(gpmi_pads, ARRAY_SIZE(gpmi_pads));

	/* config gpmi and bch clock to 100 MHz */
	clrsetbits_le32(&mxc_ccm->cs2cdr,
			MXC_CCM_CS2CDR_QSPI2_CLK_PODF_MASK |
			MXC_CCM_CS2CDR_QSPI2_CLK_PRED_MASK |
			MXC_CCM_CS2CDR_QSPI2_CLK_SEL_MASK,
			MXC_CCM_CS2CDR_QSPI2_CLK_PODF(0) |
			MXC_CCM_CS2CDR_QSPI2_CLK_PRED(3) |
			MXC_CCM_CS2CDR_QSPI2_CLK_SEL(3));

	/* enable gpmi and bch clock gating */
	setbits_le32(&mxc_ccm->CCGR4,
		     MXC_CCM_CCGR4_RAWNAND_U_BCH_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_BCH_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_BCH_INPUT_GPMI_IO_MASK |
		     MXC_CCM_CCGR4_RAWNAND_U_GPMI_INPUT_APB_MASK |
		     MXC_CCM_CCGR4_PL301_MX6QPER1_BCH_MASK);

	/* enable apbh clock gating */
	setbits_le32(&mxc_ccm->CCGR0, MXC_CCM_CCGR0_APBHDMA_MASK);
}
#endif

#ifdef CONFIG_FEC_MXC
int board_eth_init(bd_t *bis)
{
	int ret;

	setup_iomux_fec1();

	ret = fecmxc_initialize_multi(bis, 0,
		CONFIG_FEC_MXC_PHYADDR, IMX_FEC_BASE);
	if (ret)
		printf("FEC1 MXC: %s:failed\n", __func__);

	return 0;
}

static int setup_fec(void)
{
	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs
		= (struct iomuxc_gpr_base_regs *) IOMUXC_GPR_BASE_ADDR;
	int ret;
	unsigned char value = 1;

	/* clear gpr1[13], gpr1[17] to select anatop clock */
	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1], IOMUX_GPR1_FEC1_MASK, 0);

	ret = enable_fec_anatop_clock(0, ENET_125MHz);
	if (ret)
		return ret;

	enable_enet_clock();

#ifdef CONFIG_FEC_ENABLE_MAX7322
	/* This is needed to drive the pads to 1.8V instead of 1.5V */
	i2c_set_bus_num(CONFIG_MAX7322_I2C_BUS);

	if (!i2c_probe(CONFIG_MAX7322_I2C_ADDR)) {
		/* Write 0x1 to enable O0 output, this device has no addr */
		/* hence addr length is 0 */
		value = 0x1;
		if (i2c_write(CONFIG_MAX7322_I2C_ADDR, 0, 0, &value, 1))
			printf("MAX7322 write failed\n");
	} else {
		printf("MAX7322 Not found\n");
	}
#endif

	return 0;
}

int board_phy_config(struct phy_device *phydev)
{
#ifdef CONFIG_FEC_ENABLE_MAX7322
	/* Enable 1.8V(SEL_1P5_1P8_POS_REG) on
	   Phy control debug reg 0 */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
#endif

	/* rgmii tx clock delay enable */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);

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

	return 0;
}
#endif

#ifdef CONFIG_PFUZE100_PMIC_I2C
#define PFUZE100_DEVICEID	0x0
#define PFUZE100_REVID		0x3
#define PFUZE100_FABID		0x4

#define PFUZE100_SW1ABVOL	0x20
#define PFUZE100_SW1ABSTBY	0x21
#define PFUZE100_SW1ABCONF	0x24
#define PFUZE100_SW1CVOL	0x2e
#define PFUZE100_SW1CSTBY	0x2f
#define PFUZE100_SW1CCONF	0x32
#define PFUZE100_SW1ABC_SETP(x)	((x-3000)/250)

/* set all switches APS in normal and PFM mode in standby */
static int setup_pmic_mode(int chip)
{
	unsigned char offset, i, switch_num, value;

	if (!chip) {
		/* pfuze100 */
		switch_num = 6;
		offset = 0x31;
	} else {
		/* pfuze200 */
		switch_num = 4;
		offset = 0x38;
	}

	value = 0xc;
	if (i2c_write(0x8, 0x23, 1, &value, 1)) {
		printf("Set SW1AB mode error!\n");
		return -1;
	}

	for (i = 0; i < switch_num - 1; i++) {
		if (i2c_write(0x8, offset + i * 7, 1, &value, 1)) {
			printf("Set switch%x mode error!\n", offset);
			return -1;
		}
	}

	return 0;
}

static int setup_pmic_voltages(void)
{
	unsigned char value, rev_id = 0;

	i2c_set_bus_num(CONFIG_PMIC_I2C_BUS);

	if (!i2c_probe(CONFIG_PMIC_I2C_SLAVE)) {
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_DEVICEID, 1, &value, 1)) {
			printf("Read device ID error!\n");
			return -1;
		}
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_REVID, 1, &rev_id, 1)) {
			printf("Read Rev ID error!\n");
			return -1;
		}
		printf("Found PFUZE100! deviceid 0x%x, revid 0x%x\n", value, rev_id);

		if (setup_pmic_mode(value & 0xf)) {
			printf("setup pmic mode error!\n");
			return -1;
		}
		/* set SW1AB staby volatage 0.975V */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABSTBY, 1, &value, 1)) {
			printf("Read SW1ABSTBY error!\n");
			return -1;
		}
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(9750);
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABSTBY, 1, &value, 1)) {
			printf("Set SW1ABSTBY error!\n");
			return -1;
		}

		/* set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABCONF, 1, &value, 1)) {
			printf("Read SW1ABCONFIG error!\n");
			return -1;
		}
		value &= ~0xc0;
		value |= 0x40;
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABCONF, 1, &value, 1)) {
			printf("Set SW1ABCONFIG error!\n");
			return -1;
		}

		/* set SW1C staby volatage 0.975V */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CSTBY, 1, &value, 1)) {
			printf("Read SW1CSTBY error!\n");
			return -1;
		}
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(9750);
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CSTBY, 1, &value, 1)) {
			printf("Set SW1CSTBY error!\n");
			return -1;
		}

		/* set SW1C/VDDSOC step ramp up time to from 16us to 4us/25mV */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CCONF, 1, &value, 1)) {
			printf("Read SW1CCONFIG error!\n");
			return -1;
		}
		value &= ~0xc0;
		value |= 0x40;
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CCONF, 1, &value, 1)) {
			printf("Set SW1CCONFIG error!\n");
			return -1;
		}
	}

	return 0;
}

#ifdef CONFIG_LDO_BYPASS_CHECK
void ldo_mode_set(int ldo_bypass)
{
	unsigned char value;
	/* swith to ldo_bypass mode */
	if (ldo_bypass) {
		/* decrease VDDARM to 1.15V */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABVOL, 1, &value, 1)) {
			printf("Read SW1AB error!\n");
			return;
		}
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(11500);
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1ABVOL, 1, &value, 1)) {
			printf("Set SW1AB error!\n");
			return;
		}
		/* increase VDDSOC to 1.15V */
		if (i2c_read(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CVOL, 1, &value, 1)) {
			printf("Read SW1C error!\n");
			return;
		}
		value &= ~0x3f;
		value |= PFUZE100_SW1ABC_SETP(11500);
		if (i2c_write(CONFIG_PMIC_I2C_SLAVE, PFUZE100_SW1CVOL, 1, &value, 1)) {
			printf("Set SW1C error!\n");
			return;
		}

		set_anatop_bypass();
		printf("switch to ldo_bypass mode!\n");
	}

}
#endif
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();
	return 0;
}

int board_init(void)
{
	/* address of boot parameters */
	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;

#ifdef CONFIG_SYS_I2C_MXC
	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
#endif

#ifdef CONFIG_FEC_MXC
	setup_fec();
#endif

#ifdef CONFIG_SYS_USE_SPINOR
	setup_spinor();
#endif

#ifdef CONFIG_SYS_USE_NAND
	setup_gpmi_nand();
#endif

#ifdef CONFIG_QSPI
	board_qspi_init();
#endif

	return 0;
}

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"sd2", MAKE_CFGVAL(0x40, 0x28, 0x00, 0x00)},
	{"sd3", MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
	{"emmc", MAKE_CFGVAL(0x60, 0x38, 0x00, 0x00)},
	{"qspi2", MAKE_CFGVAL(0x18, 0x00, 0x00, 0x00)},
	{"spinor", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x0B)},
	{"nand", MAKE_CFGVAL(0x80, 0x00, 0x00, 0x00)},
	{NULL,   0},
};
#endif

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

#ifdef CONFIG_PFUZE100_PMIC_I2C
	int ret = 0;

	ret = setup_pmic_voltages();
	if (ret)
		return -1;
#endif

#ifdef CONFIG_ENV_IS_IN_MMC
	board_late_mmc_init();
#endif

	return 0;
}

u32 get_board_rev(void)
{
	return get_cpu_rev();
}

int checkboard(void)
{
	puts("Board: MX6SX 17x17 ARM2\n");

	return 0;
}

#ifdef CONFIG_USB_EHCI_MX6
iomux_v3_cfg_t const usb_otg1_pads[] = {
	MX6SX_PAD_GPIO1_IO09__USB_OTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6SX_PAD_GPIO1_IO10__ANATOP_OTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL)
};

iomux_v3_cfg_t const usb_otg2_pads[] = {
	MX6SX_PAD_GPIO1_IO12__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
};

int board_ehci_hcd_init(int port)
{
	switch (port) {
	case 0:
		imx_iomux_v3_setup_multiple_pads(usb_otg1_pads,
			ARRAY_SIZE(usb_otg1_pads));
		break;
	case 1:
		imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
			ARRAY_SIZE(usb_otg2_pads));
		break;
	default:
		printf("MXC USB port %d not yet supported\n", port);
		return 1;
	}
	return 0;
}
#endif