/*
 * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
 * Copyright (C) 2013, Boundary Devices <info@boundarydevices.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
#include <malloc.h>
#include <asm/arch/mx6-pins.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/mxc_i2c.h>
#include <asm/imx-common/boot_mode.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <micrel.h>
#include <miiphy.h>
#include <netdev.h>
#include <linux/fb.h>
#include <ipu_pixfmt.h>
#include <asm/arch/crm_regs.h>
#include <asm/arch/mxc_hdmi.h>
#include <i2c.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_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED	  |		\
	PAD_CTL_DSE_40ohm   | PAD_CTL_HYS)

#define SPI_PAD_CTRL (PAD_CTL_HYS |				\
	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm     | 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 | PAD_CTL_SRE_FAST)

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

#define WEAK_PULLDOWN	(PAD_CTL_PKE | PAD_CTL_PUE |		\
	PAD_CTL_PUS_100K_DOWN | PAD_CTL_SPEED_MED |		\
	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
	PAD_CTL_SRE_SLOW)

#define OUTPUT_40OHM (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)

int dram_init(void)
{
	gd->ram_size = ((ulong)CONFIG_DDR_MB * 1024 * 1024);

	return 0;
}

iomux_v3_cfg_t const uart1_pads[] = {
	MX6_PAD_SD3_DAT6__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_SD3_DAT7__UART1_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};

iomux_v3_cfg_t const uart2_pads[] = {
	MX6_PAD_EIM_D26__UART2_TXD | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL),
};

#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)

/* I2C1, SGTL5000 */
struct i2c_pads_info i2c_pad_info0 = {
	.scl = {
		.i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC,
		.gpio_mode = MX6_PAD_EIM_D21__GPIO_3_21 | PC,
		.gp = IMX_GPIO_NR(3, 21)
	},
	.sda = {
		.i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC,
		.gpio_mode = MX6_PAD_EIM_D28__GPIO_3_28 | PC,
		.gp = IMX_GPIO_NR(3, 28)
	}
};

/* I2C2 Camera, MIPI */
struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
		.gpio_mode = MX6_PAD_KEY_COL3__GPIO_4_12 | PC,
		.gp = IMX_GPIO_NR(4, 12)
	},
	.sda = {
		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC,
		.gp = IMX_GPIO_NR(4, 13)
	}
};

/* I2C3, J15 - RGB connector */
struct i2c_pads_info i2c_pad_info2 = {
	.scl = {
		.i2c_mode = MX6_PAD_GPIO_5__I2C3_SCL | PC,
		.gpio_mode = MX6_PAD_GPIO_5__GPIO_1_5 | PC,
		.gp = IMX_GPIO_NR(1, 5)
	},
	.sda = {
		.i2c_mode = MX6_PAD_GPIO_16__I2C3_SDA | PC,
		.gpio_mode = MX6_PAD_GPIO_16__GPIO_7_11 | PC,
		.gp = IMX_GPIO_NR(7, 11)
	}
};

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_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

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_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT5__GPIO_7_0    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
};

iomux_v3_cfg_t const enet_pads1[] = {
	MX6_PAD_ENET_MDIO__ENET_MDIO		| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET_MDC__ENET_MDC		| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TXC__ENET_RGMII_TXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD0__ENET_RGMII_TD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD1__ENET_RGMII_TD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD2__ENET_RGMII_TD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD3__ENET_RGMII_TD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	/* pin 35 - 1 (PHY_AD2) on reset */
	MX6_PAD_RGMII_RXC__GPIO_6_30		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 32 - 1 - (MODE0) all */
	MX6_PAD_RGMII_RD0__GPIO_6_25		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 31 - 1 - (MODE1) all */
	MX6_PAD_RGMII_RD1__GPIO_6_27		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 28 - 1 - (MODE2) all */
	MX6_PAD_RGMII_RD2__GPIO_6_28		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 27 - 1 - (MODE3) all */
	MX6_PAD_RGMII_RD3__GPIO_6_29		| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 33 - 1 - (CLK125_EN) 125Mhz clockout enabled */
	MX6_PAD_RGMII_RX_CTL__GPIO_6_24	| MUX_PAD_CTRL(NO_PAD_CTRL),
	/* pin 42 PHY nRST */
	MX6_PAD_EIM_D23__GPIO_3_23		| MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_ENET_RXD0__GPIO_1_27		| MUX_PAD_CTRL(NO_PAD_CTRL),
};

iomux_v3_cfg_t const enet_pads2[] = {
	MX6_PAD_RGMII_RXC__ENET_RGMII_RXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD0__ENET_RGMII_RD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD1__ENET_RGMII_RD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD2__ENET_RGMII_RD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD3__ENET_RGMII_RD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
};

static void setup_iomux_enet(void)
{
	gpio_direction_output(IMX_GPIO_NR(1, 27), 0); /* PHY rst */
	gpio_direction_output(IMX_GPIO_NR(6, 30), 1);
	gpio_direction_output(IMX_GPIO_NR(6, 25), 1);
	gpio_direction_output(IMX_GPIO_NR(6, 27), 1);
	gpio_direction_output(IMX_GPIO_NR(6, 28), 1);
	gpio_direction_output(IMX_GPIO_NR(6, 29), 1);
	imx_iomux_v3_setup_multiple_pads(enet_pads1, ARRAY_SIZE(enet_pads1));
	gpio_direction_output(IMX_GPIO_NR(6, 24), 1);

	/* Need delay 10ms according to KSZ9021 spec */
	udelay(1000 * 10);
	gpio_set_value(IMX_GPIO_NR(1, 27), 1); /* PHY reset */

	imx_iomux_v3_setup_multiple_pads(enet_pads2, ARRAY_SIZE(enet_pads2));
}

iomux_v3_cfg_t const usb_pads[] = {
	MX6_PAD_GPIO_17__GPIO_7_12 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_uart(void)
{
	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
	imx_iomux_v3_setup_multiple_pads(uart2_pads, ARRAY_SIZE(uart2_pads));
}

#ifdef CONFIG_USB_EHCI_MX6
int board_ehci_hcd_init(int port)
{
	imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));

	/* Reset USB hub */
	gpio_direction_output(IMX_GPIO_NR(7, 12), 0);
	mdelay(2);
	gpio_set_value(IMX_GPIO_NR(7, 12), 1);

	return 0;
}
#endif

#ifdef CONFIG_FSL_ESDHC

int board_mmc_getcd(struct mmc *mmc)
{
	int ret;

	gpio_direction_input(IMX_GPIO_NR(7, 0));
	ret = !gpio_get_value(IMX_GPIO_NR(7, 0));

	return ret;
}

static struct fsl_esdhc_cfg usdhc_cfg = {
	.esdhc_base = USDHC3_BASE_ADDR,
	.max_bus_width = 4
};

int board_mmc_init(bd_t *bis)
{
	printf("%s:\n", __func__ );
	usdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);

	printf("%s:setup pads\n", __func__ );
	imx_iomux_v3_setup_multiple_pads(
		usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
	printf("%s:initialize\n", __func__ );
	return fsl_esdhc_initialize(bis, &usdhc_cfg);
}
#endif

#ifdef CONFIG_MXC_SPI
iomux_v3_cfg_t const ecspi1_pads[] = {
	/* SS1 */
	MX6_PAD_EIM_D19__GPIO_3_19   | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_EIM_D17__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_EIM_D18__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_EIM_D16__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
};

void setup_spi(void)
{
	gpio_direction_output(CONFIG_SF_DEFAULT_CS, 1);
	imx_iomux_v3_setup_multiple_pads(ecspi1_pads,
					 ARRAY_SIZE(ecspi1_pads));
}
#endif

unsigned short ksz9031_por_cmds[] = {
	0x0205, 0x0,            /* RXDn pad skew */
	0x0206, 0x0,            /* TXDn pad skew */
	0x0208, 0x03ff,         /* TXC/RXC pad skew */
	0x0, 0x0
};

int board_phy_config(struct phy_device *phydev)
{
	if (phydev->drv->uid == 0x221610) {
		/* ksz9021 */
		/* min rx data delay */
		ksz9021_phy_extended_write(phydev,
				MII_KSZ9021_EXT_RGMII_RX_DATA_SKEW, 0x0);
		/* min tx data delay */
		ksz9021_phy_extended_write(phydev,
				MII_KSZ9021_EXT_RGMII_TX_DATA_SKEW, 0x0);
		/* max rx/tx clock delay, min rx/tx control */
		ksz9021_phy_extended_write(phydev,
				MII_KSZ9021_EXT_RGMII_CLOCK_SKEW, 0xf0f0);
	} else {
		ksz9031_send_phy_cmds(phydev, ksz9031_por_cmds);
	}
	if (phydev->drv->config)
		phydev->drv->config(phydev);

	return 0;
}

int board_eth_init(bd_t *bis)
{
	uint32_t base = IMX_FEC_BASE;
	struct mii_dev *bus = NULL;
	struct phy_device *phydev = NULL;
	int ret;

	setup_iomux_enet();

#ifdef CONFIG_FEC_MXC
	bus = fec_get_miibus(base, -1);
	if (!bus)
		return 0;
	/* scan phy 4,5,6,7 */
	phydev = phy_find_by_mask(bus, (0xf << 4), PHY_INTERFACE_MODE_RGMII);
	if (!phydev) {
		free(bus);
		return 0;
	}
	printf("using phy at %d\n", phydev->addr);
	ret  = fec_probe(bis, -1, base, bus, phydev);
	if (ret) {
		printf("FEC MXC: %s:failed\n", __func__);
		free(phydev);
		free(bus);
	}
#endif
	return 0;
}

#if defined(CONFIG_VIDEO_IPUV3)

static iomux_v3_cfg_t const backlight_pads[] = {
	/* Backlight on RGB connector: J15 */
	MX6_PAD_SD1_DAT3__GPIO_1_21 | MUX_PAD_CTRL(NO_PAD_CTRL),
#define RGB_BACKLIGHT_GP IMX_GPIO_NR(1, 21)
	/* PWM on LVDS connector: J6 */
	MX6_PAD_SD1_CMD__GPIO_1_18 | MUX_PAD_CTRL(NO_PAD_CTRL),
#define LVDS_BACKLIGHT_PWM IMX_GPIO_NR(1, 18)
	/* Backlight on LVDS connector: J6 */
	MX6_PAD_SD1_DAT1__GPIO_1_17 | MUX_PAD_CTRL(NO_PAD_CTRL),
#define LVDS_BACKLIGHT_EN IMX_GPIO_NR(1, 17)
};

static iomux_v3_cfg_t const rgb_pads[] = {
	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,
	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15,
	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN2,
	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN3,
	MX6_PAD_DI0_PIN4__GPIO_4_20,
	MX6_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
	MX6_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
	MX6_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
	MX6_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
	MX6_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
	MX6_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
	MX6_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
	MX6_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
	MX6_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
	MX6_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
	MX6_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
	MX6_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
	MX6_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
	MX6_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
	MX6_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
	MX6_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
	MX6_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
	MX6_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
	MX6_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
	MX6_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
	MX6_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
	MX6_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
	MX6_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
	MX6_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
};

struct display_info_t {
	int	bus;
	int	addr;
	int	pixfmt;
	int	(*detect)(struct display_info_t const *dev);
	void	(*enable)(struct display_info_t const *dev);
	struct	fb_videomode mode;
};


static int detect_hdmi(struct display_info_t const *dev)
{
	struct hdmi_regs *hdmi	= (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
	return readb(&hdmi->phy_stat0) & HDMI_PHY_HPD;
}

static void enable_hdmi(struct display_info_t const *dev)
{
	struct hdmi_regs *hdmi	= (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;
	u8 reg;
	printf("%s: setup HDMI monitor\n", __func__);
	reg = readb(&hdmi->phy_conf0);
	reg |= HDMI_PHY_CONF0_PDZ_MASK;
	writeb(reg, &hdmi->phy_conf0);

	udelay(3000);
	reg |= HDMI_PHY_CONF0_ENTMDS_MASK;
	writeb(reg, &hdmi->phy_conf0);
	udelay(3000);
	reg |= HDMI_PHY_CONF0_GEN2_TXPWRON_MASK;
	writeb(reg, &hdmi->phy_conf0);
	writeb(HDMI_MC_PHYRSTZ_ASSERT, &hdmi->mc_phyrstz);
}

static int detect_i2c(struct display_info_t const *dev)
{
	return ((0 == i2c_set_bus_num(dev->bus))
		&&
		(0 == i2c_probe(dev->addr)));
}

static void enable_lvds(struct display_info_t const *dev)
{
	struct iomuxc *iomux = (struct iomuxc *)
				IOMUXC_BASE_ADDR;
	u32 reg = readl(&iomux->gpr[2]);
	reg |= IOMUXC_GPR2_DATA_WIDTH_CH0_24BIT;
	writel(reg, &iomux->gpr[2]);
	gpio_direction_output(LVDS_BACKLIGHT_PWM, 1);
	gpio_direction_output(LVDS_BACKLIGHT_EN, 1);
}

static int detect_none(struct display_info_t const *dev)
{
	return 0;
}

static void enable_rgb(struct display_info_t const *dev)
{
	gpio_direction_output(RGB_BACKLIGHT_GP, 1);
}

static struct display_info_t const displays[] = {{
	.bus	= 2,
	.addr	= 0x48,
	.pixfmt	= IPU_PIX_FMT_RGB24,
	.detect	= detect_none, /* don't auto-detect because TSC2004 is on-board */
	.enable	= enable_rgb,
	.mode	= {
		.name           = "wqvga-rgb",
		.refresh        = 57,
		.xres           = 480,
		.yres           = 272,
		.pixclock       = 97786,
		.left_margin    = 2,
		.right_margin   = 1,
		.upper_margin   = 3,
		.lower_margin   = 2,
		.hsync_len      = 41,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= -1,
	.addr	= 0,
	.pixfmt	= IPU_PIX_FMT_RGB24,
	.detect	= detect_hdmi,
	.enable	= enable_hdmi,
	.mode	= {
		.name           = "HDMI",
		.refresh        = 60,
		.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           = FB_SYNC_EXT,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= 2,
	.addr	= 0x4,
	.pixfmt	= IPU_PIX_FMT_LVDS666,
	.detect	= detect_i2c,
	.enable	= enable_lvds,
	.mode	= {
		.name           = "Hannstar-XGA",
		.refresh        = 60,
		.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           = FB_SYNC_EXT,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= 2,
	.addr	= 0x38,
	.pixfmt	= IPU_PIX_FMT_LVDS666,
	.detect	= detect_i2c,
	.enable	= enable_lvds,
	.mode	= {
		.name           = "wsvga-lvds",
		.refresh        = 60,
		.xres           = 1024,
		.yres           = 600,
		.pixclock       = 15385,
		.left_margin    = 220,
		.right_margin   = 40,
		.upper_margin   = 21,
		.lower_margin   = 7,
		.hsync_len      = 60,
		.vsync_len      = 10,
		.sync           = FB_SYNC_EXT,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= 2,
	.addr	= 0x48,
	.pixfmt	= IPU_PIX_FMT_RGB666,
	.detect	= detect_none, /* don't auto-detect because TSC2004 is on-board */
	.enable	= enable_rgb,
	.mode	= {
		.name           = "wvga-rgb",
		.refresh        = 57,
		.xres           = 800,
		.yres           = 480,
		.pixclock       = 37037,
		.left_margin    = 40,
		.right_margin   = 60,
		.upper_margin   = 10,
		.lower_margin   = 10,
		.hsync_len      = 20,
		.vsync_len      = 10,
		.sync           = 0,
		.vmode          = FB_VMODE_NONINTERLACED
} } };

int board_video_skip(void)
{
	int i;
	int ret;
	char const *panel;

	imx_iomux_v3_setup_multiple_pads(
		rgb_pads,
		 ARRAY_SIZE(rgb_pads));

	panel = getenv("panel");
	if (!panel) {
		for (i = 0; i < ARRAY_SIZE(displays); i++) {
			struct display_info_t const *dev = displays+i;
			if (dev->detect(dev)) {
				panel = dev->mode.name;
				printf("auto-detected panel %s\n", panel);
				break;
			}
		}
		if (!panel) {
			panel = displays[0].mode.name;
			i = 0;
			printf("No panel detected: default to %s\n", panel);
		}
	} else {
		for (i = 0; i < ARRAY_SIZE(displays); i++) {
			if (!strcmp(panel, displays[i].mode.name))
				break;
		}
	}
	if (i < ARRAY_SIZE(displays)) {
		ret = ipuv3_fb_init(&displays[i].mode, 0,
				    displays[i].pixfmt);
		if (!ret) {
			displays[i].enable(displays+i);
			printf("Display: %s (%ux%u)\n",
			       displays[i].mode.name,
			       displays[i].mode.xres,
			       displays[i].mode.yres);
		} else
			printf("LCD %s cannot be configured: %d\n",
			       displays[i].mode.name, ret);
	} else {
		printf("unsupported panel %s\n", panel);
		ret = -EINVAL;
	}
	return (0 != ret);
}

static void setup_display(void)
{
	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
	struct hdmi_regs *hdmi	= (struct hdmi_regs *)HDMI_ARB_BASE_ADDR;

	int reg;

	/* Turn on LDB0,IPU,IPU DI0 clocks */
	reg = __raw_readl(&mxc_ccm->CCGR3);
	reg |=   MXC_CCM_CCGR3_IPU1_IPU_DI0_OFFSET
		|MXC_CCM_CCGR3_LDB_DI0_MASK;
	writel(reg, &mxc_ccm->CCGR3);

	/* Turn on HDMI PHY clock */
	reg = __raw_readl(&mxc_ccm->CCGR2);
	reg |=  MXC_CCM_CCGR2_HDMI_TX_IAHBCLK_MASK
	       |MXC_CCM_CCGR2_HDMI_TX_ISFRCLK_MASK;
	writel(reg, &mxc_ccm->CCGR2);

	/* clear HDMI PHY reset */
	writeb(HDMI_MC_PHYRSTZ_DEASSERT, &hdmi->mc_phyrstz);


	/* set LDB0, LDB1 clk select to 011/011 */
	reg = readl(&mxc_ccm->cs2cdr);
	reg &= ~(MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_MASK
		 |MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_MASK);
	reg |= (3<<MXC_CCM_CS2CDR_LDB_DI0_CLK_SEL_OFFSET)
	      |(3<<MXC_CCM_CS2CDR_LDB_DI1_CLK_SEL_OFFSET);
	writel(reg, &mxc_ccm->cs2cdr);

	reg = readl(&mxc_ccm->cscmr2);
	reg |= MXC_CCM_CSCMR2_LDB_DI0_IPU_DIV;
	writel(reg, &mxc_ccm->cscmr2);

	reg = readl(&mxc_ccm->chsccdr);
	reg &= ~(MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_MASK
		|MXC_CCM_CHSCCDR_IPU1_DI0_PODF_MASK
		|MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_MASK);
	reg |= (CHSCCDR_CLK_SEL_LDB_DI0
		<<MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET)
	      |(CHSCCDR_PODF_DIVIDE_BY_3
		<<MXC_CCM_CHSCCDR_IPU1_DI0_PODF_OFFSET)
	      |(CHSCCDR_IPU_PRE_CLK_540M_PFD
		<<MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET);
	writel(reg, &mxc_ccm->chsccdr);

	reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
	     |IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_HIGH
	     |IOMUXC_GPR2_DI0_VS_POLARITY_ACTIVE_LOW
	     |IOMUXC_GPR2_BIT_MAPPING_CH1_SPWG
	     |IOMUXC_GPR2_DATA_WIDTH_CH1_18BIT
	     |IOMUXC_GPR2_BIT_MAPPING_CH0_SPWG
	     |IOMUXC_GPR2_DATA_WIDTH_CH0_18BIT
	     |IOMUXC_GPR2_LVDS_CH1_MODE_DISABLED
	     |IOMUXC_GPR2_LVDS_CH0_MODE_ENABLED_DI0;
	writel(reg, &iomux->gpr[2]);

	reg = readl(&iomux->gpr[3]);
	reg = (reg & ~IOMUXC_GPR3_LVDS0_MUX_CTL_MASK)
	    | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
	       <<IOMUXC_GPR3_LVDS0_MUX_CTL_OFFSET);
	writel(reg, &iomux->gpr[3]);

	/* backlights off until needed */
	imx_iomux_v3_setup_multiple_pads(backlight_pads,
					 ARRAY_SIZE(backlight_pads));
	gpio_direction_input(LVDS_BACKLIGHT_PWM);
	gpio_direction_input(LVDS_BACKLIGHT_EN);
}
#endif

int board_early_init_f(void)
{
	enable_clko1(CLKO1_AHB_CLK_ROOT,7);

	setup_iomux_uart();

#if defined(CONFIG_VIDEO_IPUV3)
	setup_display();
#endif
	return 0;
}

/*
 * Do not overwrite the console
 * Use always serial for U-Boot console
 */
int overwrite_console(void)
{
	return 1;
}

static iomux_v3_cfg_t const i2c0_mux_pads[] = {
	MX6_PAD_EIM_D20__GPIO_3_20 | MUX_PAD_CTRL(I2C_PAD_CTRL), /* CAM */
	MX6_PAD_EIM_CS0__GPIO_2_23 |MUX_PAD_CTRL(I2C_PAD_CTRL)   /* RTC */
};

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

#ifdef CONFIG_MXC_SPI
	setup_spi();
#endif
	imx_iomux_v3_setup_multiple_pads(
		usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
	imx_iomux_v3_setup_multiple_pads(i2c0_mux_pads,
					 ARRAY_SIZE(i2c0_mux_pads));
	gpio_direction_output(IMX_GPIO_NR(3,20),0);
	gpio_direction_output(IMX_GPIO_NR(2,23),1); /* enable RTC */
	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
	setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);

	return 0;
}

int checkboard(void)
{
	puts("Board: Boundary Nit6x-Lite\n");

	return 0;
}

#ifdef CONFIG_CMD_BMODE
static const struct boot_mode board_boot_modes[] = {
	/* 4 bit bus width */
	{"mmc0",	MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
	{"mmc1",	MAKE_CFGVAL(0x40, 0x38, 0x00, 0x00)},
	{NULL,		0},
};
#endif

int misc_init_r(void)
{
#ifdef CONFIG_CMD_BMODE
	add_board_boot_modes(board_boot_modes);
#endif
	return 0;
}