board/freescale/mx6sabresd/mx6sabresd.c

/*
 * Copyright (C) 2012 Freescale Semiconductor, Inc.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

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

DECLARE_GLOBAL_DATA_PTR;

#define UART_PAD_CTRL  (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_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_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)

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

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

#define I2C_PMIC	1

#define I2C_PAD MUX_PAD_CTRL(I2C_PAD_CTRL)

#define DISP0_PWR_EN	IMX_GPIO_NR(1, 21)

int dram_init(void)
{
	gd->ram_size = imx_ddr_size();
	return 0;
}

static iomux_v3_cfg_t const uart1_pads[] = {
	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
};

static iomux_v3_cfg_t const enet_pads[] = {
	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__RGMII_TXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD0__RGMII_TD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD1__RGMII_TD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD2__RGMII_TD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_TD3__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),
	MX6_PAD_RGMII_RXC__RGMII_RXC	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD0__RGMII_RD0	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD1__RGMII_RD1	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD2__RGMII_RD2	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RD3__RGMII_RD3	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL	| MUX_PAD_CTRL(ENET_PAD_CTRL),
	/* AR8031 PHY Reset */
	MX6_PAD_ENET_CRS_DV__GPIO1_IO25		| MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void setup_iomux_enet(void)
{
	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));

	/* Reset AR8031 PHY */
	gpio_direction_output(IMX_GPIO_NR(1, 25) , 0);
	mdelay(10);
	gpio_set_value(IMX_GPIO_NR(1, 25), 1);
	udelay(100);
}

static iomux_v3_cfg_t const usdhc2_pads[] = {
	MX6_PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT0__SD2_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D4__SD2_DATA4	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D5__SD2_DATA5	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D6__SD2_DATA6	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D7__SD2_DATA7	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D2__GPIO2_IO02	| MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
};

static iomux_v3_cfg_t const usdhc3_pads[] = {
	MX6_PAD_SD3_CLK__SD3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_NANDF_D0__GPIO2_IO00    | MUX_PAD_CTRL(NO_PAD_CTRL), /* CD */
};

static iomux_v3_cfg_t const usdhc4_pads[] = {
	MX6_PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
	MX6_PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};

static iomux_v3_cfg_t const ecspi1_pads[] = {
	MX6_PAD_KEY_COL0__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_KEY_COL1__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_KEY_ROW0__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
	MX6_PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const rgb_pads[] = {
	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT0__IPU1_DISP0_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT1__IPU1_DISP0_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT2__IPU1_DISP0_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT3__IPU1_DISP0_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT4__IPU1_DISP0_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT5__IPU1_DISP0_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT6__IPU1_DISP0_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT7__IPU1_DISP0_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT8__IPU1_DISP0_DATA08 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT9__IPU1_DISP0_DATA09 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT10__IPU1_DISP0_DATA10 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT11__IPU1_DISP0_DATA11 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT12__IPU1_DISP0_DATA12 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT13__IPU1_DISP0_DATA13 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT14__IPU1_DISP0_DATA14 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT15__IPU1_DISP0_DATA15 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT16__IPU1_DISP0_DATA16 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT17__IPU1_DISP0_DATA17 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT18__IPU1_DISP0_DATA18 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT19__IPU1_DISP0_DATA19 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT20__IPU1_DISP0_DATA20 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT21__IPU1_DISP0_DATA21 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT22__IPU1_DISP0_DATA22 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_DISP0_DAT23__IPU1_DISP0_DATA23 | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static void enable_rgb(struct display_info_t const *dev)
{
	imx_iomux_v3_setup_multiple_pads(rgb_pads, ARRAY_SIZE(rgb_pads));
	gpio_direction_output(DISP0_PWR_EN, 1);
}

static struct i2c_pads_info i2c_pad_info1 = {
	.scl = {
		.i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | I2C_PAD,
		.gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | I2C_PAD,
		.gp = IMX_GPIO_NR(4, 12)
	},
	.sda = {
		.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | I2C_PAD,
		.gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | I2C_PAD,
		.gp = IMX_GPIO_NR(4, 13)
	}
};

static void setup_spi(void)
{
	imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
}

iomux_v3_cfg_t const pcie_pads[] = {
	MX6_PAD_EIM_D19__GPIO3_IO19 | MUX_PAD_CTRL(NO_PAD_CTRL),	/* POWER */
	MX6_PAD_GPIO_17__GPIO7_IO12 | MUX_PAD_CTRL(NO_PAD_CTRL),	/* RESET */
};

static void setup_pcie(void)
{
	imx_iomux_v3_setup_multiple_pads(pcie_pads, ARRAY_SIZE(pcie_pads));
}

iomux_v3_cfg_t const di0_pads[] = {
	MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK,	/* DISP0_CLK */
	MX6_PAD_DI0_PIN2__IPU1_DI0_PIN02,		/* DISP0_HSYNC */
	MX6_PAD_DI0_PIN3__IPU1_DI0_PIN03,		/* DISP0_VSYNC */
};

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

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

#define USDHC2_CD_GPIO	IMX_GPIO_NR(2, 2)
#define USDHC3_CD_GPIO	IMX_GPIO_NR(2, 0)

int board_mmc_get_env_dev(int devno)
{
	return devno - 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 = !gpio_get_value(USDHC2_CD_GPIO);
		break;
	case USDHC3_BASE_ADDR:
		ret = !gpio_get_value(USDHC3_CD_GPIO);
		break;
	case USDHC4_BASE_ADDR:
		ret = 1; /* eMMC/uSDHC4 is always present */
		break;
	}

	return ret;
}

int board_mmc_init(bd_t *bis)
{
#ifndef CONFIG_SPL_BUILD
	int ret;
	int i;

	/*
	 * According to the board_mmc_init() the following map is done:
	 * (U-Boot device node)    (Physical Port)
	 * mmc0                    SD2
	 * mmc1                    SD3
	 * 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));
			gpio_direction_input(USDHC2_CD_GPIO);
			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) then supported by the board (%d)\n",
			       i + 1, CONFIG_SYS_FSL_USDHC_NUM);
			return -EINVAL;
		}

		ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
		if (ret)
			return ret;
	}

	return 0;
#else
	struct src *psrc = (struct src *)SRC_BASE_ADDR;
	unsigned reg = readl(&psrc->sbmr1) >> 11;
	/*
	 * Upon reading BOOT_CFG register the following map is done:
	 * Bit 11 and 12 of BOOT_CFG register can determine the current
	 * mmc port
	 * 0x1                  SD1
	 * 0x2                  SD2
	 * 0x3                  SD4
	 */

	switch (reg & 0x3) {
	case 0x1:
		imx_iomux_v3_setup_multiple_pads(
			usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
		usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
		break;
	case 0x2:
		imx_iomux_v3_setup_multiple_pads(
			usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
		usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR;
		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
		break;
	case 0x3:
		imx_iomux_v3_setup_multiple_pads(
			usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
		usdhc_cfg[0].esdhc_base = USDHC4_BASE_ADDR;
		usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
		gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
		break;
	}

	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
#endif
}
#endif

#if defined(CONFIG_VIDEO_IPUV3)
static void disable_lvds(struct display_info_t const *dev)
{
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;

	int reg = readl(&iomux->gpr[2]);

	reg &= ~(IOMUXC_GPR2_LVDS_CH0_MODE_MASK |
		 IOMUXC_GPR2_LVDS_CH1_MODE_MASK);

	writel(reg, &iomux->gpr[2]);
}

static void do_enable_hdmi(struct display_info_t const *dev)
{
	disable_lvds(dev);
	imx_enable_hdmi_phy();
}

struct display_info_t const displays[] = {{
	.bus	= -1,
	.addr	= 0,
	.pixfmt	= IPU_PIX_FMT_RGB666,
	.detect	= NULL,
	.enable	= NULL,
	.mode	= {
		.name           = "Hannstar-XGA",
		.refresh        = 60,
		.xres           = 1024,
		.yres           = 768,
		.pixclock       = 15384,
		.left_margin    = 160,
		.right_margin   = 24,
		.upper_margin   = 29,
		.lower_margin   = 3,
		.hsync_len      = 136,
		.vsync_len      = 6,
		.sync           = FB_SYNC_EXT,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= -1,
	.addr	= 0,
	.pixfmt	= IPU_PIX_FMT_RGB24,
	.detect	= detect_hdmi,
	.enable	= do_enable_hdmi,
	.mode	= {
		.name           = "HDMI",
		.refresh        = 60,
		.xres           = 1024,
		.yres           = 768,
		.pixclock       = 15384,
		.left_margin    = 160,
		.right_margin   = 24,
		.upper_margin   = 29,
		.lower_margin   = 3,
		.hsync_len      = 136,
		.vsync_len      = 6,
		.sync           = FB_SYNC_EXT,
		.vmode          = FB_VMODE_NONINTERLACED
} }, {
	.bus	= 0,
	.addr	= 0,
	.pixfmt	= IPU_PIX_FMT_RGB24,
	.detect	= NULL,
	.enable	= enable_rgb,
	.mode	= {
		.name           = "SEIKO-WVGA",
		.refresh        = 60,
		.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);

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;
	int reg;

	/* Setup HSYNC, VSYNC, DISP_CLK for debugging purposes */
	imx_iomux_v3_setup_multiple_pads(di0_pads, ARRAY_SIZE(di0_pads));

	enable_ipu_clock();
	imx_setup_hdmi();

	/* Turn on LDB0, LDB1, IPU,IPU DI0 clocks */
	reg = readl(&mxc_ccm->CCGR3);
	reg |=  MXC_CCM_CCGR3_LDB_DI0_MASK | MXC_CCM_CCGR3_LDB_DI1_MASK;
	writel(reg, &mxc_ccm->CCGR3);

	/* 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 | MXC_CCM_CSCMR2_LDB_DI1_IPU_DIV;
	writel(reg, &mxc_ccm->cscmr2);

	reg = readl(&mxc_ccm->chsccdr);
	reg |= (CHSCCDR_CLK_SEL_LDB_DI0
		<< MXC_CCM_CHSCCDR_IPU1_DI0_CLK_SEL_OFFSET);
	reg |= (CHSCCDR_CLK_SEL_LDB_DI0
		<< MXC_CCM_CHSCCDR_IPU1_DI1_CLK_SEL_OFFSET);
	writel(reg, &mxc_ccm->chsccdr);

	reg = IOMUXC_GPR2_BGREF_RRMODE_EXTERNAL_RES
	     | IOMUXC_GPR2_DI1_VS_POLARITY_ACTIVE_LOW
	     | 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_CH0_MODE_DISABLED
	     | IOMUXC_GPR2_LVDS_CH1_MODE_ENABLED_DI0;
	writel(reg, &iomux->gpr[2]);

	reg = readl(&iomux->gpr[3]);
	reg = (reg & ~(IOMUXC_GPR3_LVDS1_MUX_CTL_MASK
			| IOMUXC_GPR3_HDMI_MUX_CTL_MASK))
	    | (IOMUXC_GPR3_MUX_SRC_IPU1_DI0
	       << IOMUXC_GPR3_LVDS1_MUX_CTL_OFFSET);
	writel(reg, &iomux->gpr[3]);
}
#endif /* CONFIG_VIDEO_IPUV3 */

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

int board_eth_init(bd_t *bis)
{
	setup_iomux_enet();
	setup_pcie();

	return cpu_eth_init(bis);
}

#ifdef CONFIG_USB_EHCI_MX6
#define USB_OTHERREGS_OFFSET	0x800
#define UCTRL_PWR_POL		(1 << 9)

static iomux_v3_cfg_t const usb_otg_pads[] = {
	MX6_PAD_EIM_D22__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
	MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
};

static iomux_v3_cfg_t const usb_hc1_pads[] = {
	MX6_PAD_ENET_TXD1__GPIO1_IO29 | 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));

	/*
	 * set daisy chain for otg_pin_id on 6q.
	 * for 6dl, this bit is reserved
	 */
	imx_iomux_set_gpr_register(1, 13, 1, 0);

	imx_iomux_v3_setup_multiple_pads(usb_hc1_pads,
					 ARRAY_SIZE(usb_hc1_pads));
}

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);

	setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);

	return 0;
}

int board_ehci_power(int port, int on)
{
	switch (port) {
	case 0:
		break;
	case 1:
		if (on)
			gpio_direction_output(IMX_GPIO_NR(1, 29), 1);
		else
			gpio_direction_output(IMX_GPIO_NR(1, 29), 0);
		break;
	default:
		printf("MXC USB port %d not yet supported\n", port);
		return -EINVAL;
	}

	return 0;
}
#endif

int board_early_init_f(void)
{
	setup_iomux_uart();
#if defined(CONFIG_VIDEO_IPUV3)
	setup_display();
#endif

	return 0;
}

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

#ifdef CONFIG_MXC_SPI
	setup_spi();
#endif
	setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);

#ifdef CONFIG_USB_EHCI_MX6
	setup_usb();
#endif

	return 0;
}

int power_init_board(void)
{
	struct pmic *p;
	unsigned int reg;
	int ret;

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

	ret = pfuze_mode_init(p, APS_PFM);
	if (ret < 0)
		return ret;

	/* Increase VGEN3 from 2.5 to 2.8V */
	pmic_reg_read(p, PFUZE100_VGEN3VOL, &reg);
	reg &= ~LDO_VOL_MASK;
	reg |= LDOB_2_80V;
	pmic_reg_write(p, PFUZE100_VGEN3VOL, reg);

	/* Increase VGEN5 from 2.8 to 3V */
	pmic_reg_read(p, PFUZE100_VGEN5VOL, &reg);
	reg &= ~LDO_VOL_MASK;
	reg |= LDOB_3_00V;
	pmic_reg_write(p, PFUZE100_VGEN5VOL, reg);

	return 0;
}

#ifdef CONFIG_MXC_SPI
int board_spi_cs_gpio(unsigned bus, unsigned cs)
{
	return (bus == 0 && cs == 0) ? (IMX_GPIO_NR(4, 9)) : -1;
}
#endif

#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)},
	/* 8 bit bus width */
	{"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
	{NULL,	 0},
};
#endif

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

#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
	setenv("board_name", "SABRESD");

	if (is_mx6dqp())
		setenv("board_rev", "MX6QP");
	else if (is_mx6dq())
		setenv("board_rev", "MX6Q");
	else if (is_mx6sdl())
		setenv("board_rev", "MX6DL");
#endif

	return 0;
}

int checkboard(void)
{
	puts("Board: MX6-SabreSD\n");
	return 0;
}

#ifdef CONFIG_SPL_BUILD
#include <spl.h>
#include <libfdt.h>

const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
	.dram_sdclk_0 =  0x00020030,
	.dram_sdclk_1 =  0x00020030,
	.dram_cas =  0x00020030,
	.dram_ras =  0x00020030,
	.dram_reset =  0x00020030,
	.dram_sdcke0 =  0x00003000,
	.dram_sdcke1 =  0x00003000,
	.dram_sdba2 =  0x00000000,
	.dram_sdodt0 =  0x00003030,
	.dram_sdodt1 =  0x00003030,
	.dram_sdqs0 =  0x00000030,
	.dram_sdqs1 =  0x00000030,
	.dram_sdqs2 =  0x00000030,
	.dram_sdqs3 =  0x00000030,
	.dram_sdqs4 =  0x00000030,
	.dram_sdqs5 =  0x00000030,
	.dram_sdqs6 =  0x00000030,
	.dram_sdqs7 =  0x00000030,
	.dram_dqm0 =  0x00020030,
	.dram_dqm1 =  0x00020030,
	.dram_dqm2 =  0x00020030,
	.dram_dqm3 =  0x00020030,
	.dram_dqm4 =  0x00020030,
	.dram_dqm5 =  0x00020030,
	.dram_dqm6 =  0x00020030,
	.dram_dqm7 =  0x00020030,
};

const struct mx6dq_iomux_ddr_regs mx6dqp_ddr_ioregs = {
	.dram_sdclk_0 =  0x00000030,
	.dram_sdclk_1 =  0x00000030,
	.dram_cas =  0x00000030,
	.dram_ras =  0x00000030,
	.dram_reset =  0x00000030,
	.dram_sdcke0 =  0x00003000,
	.dram_sdcke1 =  0x00003000,
	.dram_sdba2 =  0x00000000,
	.dram_sdodt0 =  0x00003030,
	.dram_sdodt1 =  0x00003030,
	.dram_sdqs0 =  0x00000030,
	.dram_sdqs1 =  0x00000030,
	.dram_sdqs2 =  0x00000030,
	.dram_sdqs3 =  0x00000030,
	.dram_sdqs4 =  0x00000030,
	.dram_sdqs5 =  0x00000030,
	.dram_sdqs6 =  0x00000030,
	.dram_sdqs7 =  0x00000030,
	.dram_dqm0 =  0x00000030,
	.dram_dqm1 =  0x00000030,
	.dram_dqm2 =  0x00000030,
	.dram_dqm3 =  0x00000030,
	.dram_dqm4 =  0x00000030,
	.dram_dqm5 =  0x00000030,
	.dram_dqm6 =  0x00000030,
	.dram_dqm7 =  0x00000030,
};

const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
	.grp_ddr_type =  0x000C0000,
	.grp_ddrmode_ctl =  0x00020000,
	.grp_ddrpke =  0x00000000,
	.grp_addds =  0x00000030,
	.grp_ctlds =  0x00000030,
	.grp_ddrmode =  0x00020000,
	.grp_b0ds =  0x00000030,
	.grp_b1ds =  0x00000030,
	.grp_b2ds =  0x00000030,
	.grp_b3ds =  0x00000030,
	.grp_b4ds =  0x00000030,
	.grp_b5ds =  0x00000030,
	.grp_b6ds =  0x00000030,
	.grp_b7ds =  0x00000030,
};

const struct mx6_mmdc_calibration mx6_mmcd_calib = {
	.p0_mpwldectrl0 =  0x001F001F,
	.p0_mpwldectrl1 =  0x001F001F,
	.p1_mpwldectrl0 =  0x00440044,
	.p1_mpwldectrl1 =  0x00440044,
	.p0_mpdgctrl0 =  0x434B0350,
	.p0_mpdgctrl1 =  0x034C0359,
	.p1_mpdgctrl0 =  0x434B0350,
	.p1_mpdgctrl1 =  0x03650348,
	.p0_mprddlctl =  0x4436383B,
	.p1_mprddlctl =  0x39393341,
	.p0_mpwrdlctl =  0x35373933,
	.p1_mpwrdlctl =  0x48254A36,
};

const struct mx6_mmdc_calibration mx6dqp_mmcd_calib = {
	.p0_mpwldectrl0 =  0x001B001E,
	.p0_mpwldectrl1 =  0x002E0029,
	.p1_mpwldectrl0 =  0x001B002A,
	.p1_mpwldectrl1 =  0x0019002C,
	.p0_mpdgctrl0 =  0x43240334,
	.p0_mpdgctrl1 =  0x0324031A,
	.p1_mpdgctrl0 =  0x43340344,
	.p1_mpdgctrl1 =  0x03280276,
	.p0_mprddlctl =  0x44383A3E,
	.p1_mprddlctl =  0x3C3C3846,
	.p0_mpwrdlctl =  0x2E303230,
	.p1_mpwrdlctl =  0x38283E34,
};

/* MT41K128M16JT-125 */
static struct mx6_ddr3_cfg mem_ddr = {
	.mem_speed = 1600,
	.density = 2,
	.width = 16,
	.banks = 8,
	.rowaddr = 14,
	.coladdr = 10,
	.pagesz = 2,
	.trcd = 1375,
	.trcmin = 4875,
	.trasmin = 3500,
};

static void ccgr_init(void)
{
	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;

	writel(0x00C03F3F, &ccm->CCGR0);
	writel(0x0030FC03, &ccm->CCGR1);
	writel(0x0FFFC000, &ccm->CCGR2);
	writel(0x3FF00000, &ccm->CCGR3);
	writel(0x00FFF300, &ccm->CCGR4);
	writel(0x0F0000C3, &ccm->CCGR5);
	writel(0x000003FF, &ccm->CCGR6);
}

static void gpr_init(void)
{
	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;

	/* enable AXI cache for VDOA/VPU/IPU */
	writel(0xF00000CF, &iomux->gpr[4]);
	if (is_mx6dqp()) {
		/* set IPU AXI-id1 Qos=0x1 AXI-id0/2/3 Qos=0x7 */
		writel(0x007F007F, &iomux->gpr[6]);
		writel(0x007F007F, &iomux->gpr[7]);
	} else {
		/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
		writel(0x007F007F, &iomux->gpr[6]);
		writel(0x007F007F, &iomux->gpr[7]);
	}
}

/*
 * This section requires the differentiation between iMX6 Sabre boards, but
 * for now, it will configure only for the mx6q variant.
 */
static void spl_dram_init(void)
{
	struct mx6_ddr_sysinfo sysinfo = {
		/* width of data bus:0=16,1=32,2=64 */
		.dsize = 2,
		/* config for full 4GB range so that get_mem_size() works */
		.cs_density = 32, /* 32Gb per CS */
		/* single chip select */
		.ncs = 1,
		.cs1_mirror = 0,
		.rtt_wr = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Wr = RZQ/4 */
		.rtt_nom = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Nom = RZQ/4 */
		.walat = 1,	/* Write additional latency */
		.ralat = 5,	/* Read additional latency */
		.mif3_mode = 3,	/* Command prediction working mode */
		.bi_on = 1,	/* Bank interleaving enabled */
		.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
		.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
		.ddr_type = DDR_TYPE_DDR3,
	};

	if (is_mx6dqp()) {
		mx6dq_dram_iocfg(64, &mx6dqp_ddr_ioregs, &mx6_grp_ioregs);
		mx6_dram_cfg(&sysinfo, &mx6dqp_mmcd_calib, &mem_ddr);
	} else {
		mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
		mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
	}
}

void board_init_f(ulong dummy)
{
	/* setup AIPS and disable watchdog */
	arch_cpu_init();

	ccgr_init();
	gpr_init();

	/* iomux and setup of i2c */
	board_early_init_f();

	/* setup GP timer */
	timer_init();

	/* UART clocks enabled and gd valid - init serial console */
	preloader_console_init();

	/* DDR initialization */
	spl_dram_init();

	/* Clear the BSS. */
	memset(__bss_start, 0, __bss_end - __bss_start);

	/* load/boot image from boot device */
	board_init_r(NULL, 0);
}
#endif