u-boot/board/freescale/mx6sabresd/mx6sabresd.c

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

#include <image.h>
#include <init.h>
#include <net.h>
#include <asm/arch/clock.h>
#include <asm/arch/imx-regs.h>
#include <asm/arch/iomux.h>
#include <asm/arch/mx6-pins.h>
#include <asm/global_data.h>
#include <asm/mach-imx/spi.h>
#include <env.h>
#include <linux/errno.h>
#include <asm/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
#include <asm/mach-imx/boot_mode.h>
#include <asm/mach-imx/video.h>
#include <mmc.h>
#include <fsl_esdhc_imx.h>
#include <miiphy.h>
#include <asm/arch/mxc_hdmi.h>
#include <asm/arch/crm_regs.h>
#include <asm/io.h>
#include <asm/arch/sys_proto.h>
#include <input.h>
#include <power/pmic.h>
#include <power/pfuze100_pmic.h>
#include "../common/pfuze.h"
#include <usb.h>
#include <usb/ehci-ci.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 SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)

#define DISP0_PWR_EN	IMX_GPIO_NR(1, 21)

#define KEY_VOL_UP	IMX_GPIO_NR(1, 4)

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

static iomux_v3_cfg_t const uart1_pads[] = {
	IOMUX_PADS(PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
	IOMUX_PADS(PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)),
};

static iomux_v3_cfg_t const usdhc2_pads[] = {
	IOMUX_PADS(PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT0__SD2_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D4__SD2_DATA4	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D5__SD2_DATA5	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D6__SD2_DATA6	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D7__SD2_DATA7	| MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D2__GPIO2_IO02	| MUX_PAD_CTRL(NO_PAD_CTRL)), /* CD */
};

static iomux_v3_cfg_t const usdhc3_pads[] = {
	IOMUX_PADS(PAD_SD3_CLK__SD3_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_NANDF_D0__GPIO2_IO00    | MUX_PAD_CTRL(NO_PAD_CTRL)), /* CD */
};

static iomux_v3_cfg_t const usdhc4_pads[] = {
	IOMUX_PADS(PAD_SD4_CLK__SD4_CLK   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_CMD__SD4_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT4__SD4_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT5__SD4_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT6__SD4_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
	IOMUX_PADS(PAD_SD4_DAT7__SD4_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
};

static iomux_v3_cfg_t const ecspi1_pads[] = {
	IOMUX_PADS(PAD_KEY_COL0__ECSPI1_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_KEY_COL1__ECSPI1_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_KEY_ROW0__ECSPI1_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL)),
	IOMUX_PADS(PAD_KEY_ROW1__GPIO4_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};

static iomux_v3_cfg_t const rgb_pads[] = {
	IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DI0_PIN15__IPU1_DI0_PIN15 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DI0_PIN4__IPU1_DI0_PIN04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT0__IPU1_DISP0_DATA00 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT1__IPU1_DISP0_DATA01 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT2__IPU1_DISP0_DATA02 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT3__IPU1_DISP0_DATA03 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT4__IPU1_DISP0_DATA04 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT5__IPU1_DISP0_DATA05 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT6__IPU1_DISP0_DATA06 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT7__IPU1_DISP0_DATA07 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT8__IPU1_DISP0_DATA08 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT9__IPU1_DISP0_DATA09 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT10__IPU1_DISP0_DATA10 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT11__IPU1_DISP0_DATA11 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT12__IPU1_DISP0_DATA12 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT13__IPU1_DISP0_DATA13 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT14__IPU1_DISP0_DATA14 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT15__IPU1_DISP0_DATA15 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT16__IPU1_DISP0_DATA16 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT17__IPU1_DISP0_DATA17 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT18__IPU1_DISP0_DATA18 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT19__IPU1_DISP0_DATA19 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT20__IPU1_DISP0_DATA20 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT21__IPU1_DISP0_DATA21 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT22__IPU1_DISP0_DATA22 | MUX_PAD_CTRL(NO_PAD_CTRL)),
	IOMUX_PADS(PAD_DISP0_DAT23__IPU1_DISP0_DATA23 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};

static iomux_v3_cfg_t const bl_pads[] = {
	IOMUX_PADS(PAD_SD1_DAT3__GPIO1_IO21 | MUX_PAD_CTRL(NO_PAD_CTRL)),
};

static void enable_backlight(void)
{
	SETUP_IOMUX_PADS(bl_pads);
	gpio_request(DISP0_PWR_EN, "Display Power Enable");
	gpio_direction_output(DISP0_PWR_EN, 1);
}

static void enable_rgb(struct display_info_t const *dev)
{
	SETUP_IOMUX_PADS(rgb_pads);
	enable_backlight();
}

static void enable_lvds(struct display_info_t const *dev)
{
	enable_backlight();
}

static void setup_spi(void)
{
	SETUP_IOMUX_PADS(ecspi1_pads);
}

iomux_v3_cfg_t const di0_pads[] = {
	IOMUX_PADS(PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK),	/* DISP0_CLK */
	IOMUX_PADS(PAD_DI0_PIN2__IPU1_DI0_PIN02),		/* DISP0_HSYNC */
	IOMUX_PADS(PAD_DI0_PIN3__IPU1_DI0_PIN03),		/* DISP0_VSYNC */
};

static void setup_iomux_uart(void)
{
	SETUP_IOMUX_PADS(uart1_pads);
}

#ifdef CONFIG_FSL_ESDHC_IMX
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(struct bd_info *bis)
{
	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:
		SETUP_IOMUX_PADS(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:
		SETUP_IOMUX_PADS(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:
		SETUP_IOMUX_PADS(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

static int ar8031_phy_fixup(struct phy_device *phydev)
{
	unsigned short val;

	/* To enable AR8031 ouput a 125MHz clk from CLK_25M */
	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7);
	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016);
	phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007);

	val = phy_read(phydev, MDIO_DEVAD_NONE, 0xe);
	val &= 0xffe3;
	val |= 0x18;
	phy_write(phydev, MDIO_DEVAD_NONE, 0xe, val);

	/* introduce tx clock delay */
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x5);
	val = phy_read(phydev, MDIO_DEVAD_NONE, 0x1e);
	val |= 0x0100;
	phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, val);

	return 0;
}

int board_phy_config(struct phy_device *phydev)
{
	ar8031_phy_fixup(phydev);

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

	return 0;
}

#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	= enable_lvds,
	.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 */
	SETUP_IOMUX_PADS(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;
}

#ifdef CONFIG_USB_EHCI_MX6
static void setup_usb(void)
{
	/*
	 * set daisy chain for otg_pin_id on 6q.
	 * for 6dl, this bit is reserved
	 */
	imx_iomux_set_gpr_register(1, 13, 1, 0);
}
#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_MXC_SPI
	setup_spi();
#endif

#if defined(CONFIG_VIDEO_IPUV3)
	setup_display();
#endif
#ifdef CONFIG_USB_EHCI_MX6
	setup_usb();
#endif

	return 0;
}

int power_init_board(void)
{
	struct udevice *dev;
	unsigned int reg;
	int ret;

	ret = pmic_get("pfuze100@8", &dev);
	if (ret == -ENODEV)
		return 0;

	if (ret != 0)
		return ret;

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

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

	/* Increase VGEN5 from 2.8 to 3V */
	reg = pmic_reg_read(dev, PFUZE100_VGEN5VOL);
	reg &= ~LDO_VOL_MASK;
	reg |= LDOB_3_00V;
	pmic_reg_write(dev, 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
	env_set("board_name", "SABRESD");

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

	return 0;
}

#ifdef CONFIG_SPL_BUILD
#include <asm/arch/mx6-ddr.h>
#include <spl.h>
#include <linux/libfdt.h>

#ifdef CONFIG_SPL_OS_BOOT
int spl_start_uboot(void)
{
	gpio_request(KEY_VOL_UP, "KEY Volume UP");
	gpio_direction_input(KEY_VOL_UP);

	/* Only enter in Falcon mode if KEY_VOL_UP is pressed */
	return gpio_get_value(KEY_VOL_UP);
}
#endif

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 int mx6q_dcd_table[] = {
	0x020e0798, 0x000C0000,
	0x020e0758, 0x00000000,
	0x020e0588, 0x00000030,
	0x020e0594, 0x00000030,
	0x020e056c, 0x00000030,
	0x020e0578, 0x00000030,
	0x020e074c, 0x00000030,
	0x020e057c, 0x00000030,
	0x020e058c, 0x00000000,
	0x020e059c, 0x00000030,
	0x020e05a0, 0x00000030,
	0x020e078c, 0x00000030,
	0x020e0750, 0x00020000,
	0x020e05a8, 0x00000030,
	0x020e05b0, 0x00000030,
	0x020e0524, 0x00000030,
	0x020e051c, 0x00000030,
	0x020e0518, 0x00000030,
	0x020e050c, 0x00000030,
	0x020e05b8, 0x00000030,
	0x020e05c0, 0x00000030,
	0x020e0774, 0x00020000,
	0x020e0784, 0x00000030,
	0x020e0788, 0x00000030,
	0x020e0794, 0x00000030,
	0x020e079c, 0x00000030,
	0x020e07a0, 0x00000030,
	0x020e07a4, 0x00000030,
	0x020e07a8, 0x00000030,
	0x020e0748, 0x00000030,
	0x020e05ac, 0x00000030,
	0x020e05b4, 0x00000030,
	0x020e0528, 0x00000030,
	0x020e0520, 0x00000030,
	0x020e0514, 0x00000030,
	0x020e0510, 0x00000030,
	0x020e05bc, 0x00000030,
	0x020e05c4, 0x00000030,
	0x021b0800, 0xa1390003,
	0x021b080c, 0x001F001F,
	0x021b0810, 0x001F001F,
	0x021b480c, 0x001F001F,
	0x021b4810, 0x001F001F,
	0x021b083c, 0x43270338,
	0x021b0840, 0x03200314,
	0x021b483c, 0x431A032F,
	0x021b4840, 0x03200263,
	0x021b0848, 0x4B434748,
	0x021b4848, 0x4445404C,
	0x021b0850, 0x38444542,
	0x021b4850, 0x4935493A,
	0x021b081c, 0x33333333,
	0x021b0820, 0x33333333,
	0x021b0824, 0x33333333,
	0x021b0828, 0x33333333,
	0x021b481c, 0x33333333,
	0x021b4820, 0x33333333,
	0x021b4824, 0x33333333,
	0x021b4828, 0x33333333,
	0x021b08b8, 0x00000800,
	0x021b48b8, 0x00000800,
	0x021b0004, 0x00020036,
	0x021b0008, 0x09444040,
	0x021b000c, 0x555A7975,
	0x021b0010, 0xFF538F64,
	0x021b0014, 0x01FF00DB,
	0x021b0018, 0x00001740,
	0x021b001c, 0x00008000,
	0x021b002c, 0x000026d2,
	0x021b0030, 0x005A1023,
	0x021b0040, 0x00000027,
	0x021b0000, 0x831A0000,
	0x021b001c, 0x04088032,
	0x021b001c, 0x00008033,
	0x021b001c, 0x00048031,
	0x021b001c, 0x09408030,
	0x021b001c, 0x04008040,
	0x021b0020, 0x00005800,
	0x021b0818, 0x00011117,
	0x021b4818, 0x00011117,
	0x021b0004, 0x00025576,
	0x021b0404, 0x00011006,
	0x021b001c, 0x00000000,
};

static int mx6qp_dcd_table[] = {
	0x020e0798, 0x000c0000,
	0x020e0758, 0x00000000,
	0x020e0588, 0x00000030,
	0x020e0594, 0x00000030,
	0x020e056c, 0x00000030,
	0x020e0578, 0x00000030,
	0x020e074c, 0x00000030,
	0x020e057c, 0x00000030,
	0x020e058c, 0x00000000,
	0x020e059c, 0x00000030,
	0x020e05a0, 0x00000030,
	0x020e078c, 0x00000030,
	0x020e0750, 0x00020000,
	0x020e05a8, 0x00000030,
	0x020e05b0, 0x00000030,
	0x020e0524, 0x00000030,
	0x020e051c, 0x00000030,
	0x020e0518, 0x00000030,
	0x020e050c, 0x00000030,
	0x020e05b8, 0x00000030,
	0x020e05c0, 0x00000030,
	0x020e0774, 0x00020000,
	0x020e0784, 0x00000030,
	0x020e0788, 0x00000030,
	0x020e0794, 0x00000030,
	0x020e079c, 0x00000030,
	0x020e07a0, 0x00000030,
	0x020e07a4, 0x00000030,
	0x020e07a8, 0x00000030,
	0x020e0748, 0x00000030,
	0x020e05ac, 0x00000030,
	0x020e05b4, 0x00000030,
	0x020e0528, 0x00000030,
	0x020e0520, 0x00000030,
	0x020e0514, 0x00000030,
	0x020e0510, 0x00000030,
	0x020e05bc, 0x00000030,
	0x020e05c4, 0x00000030,
	0x021b0800, 0xa1390003,
	0x021b080c, 0x001b001e,
	0x021b0810, 0x002e0029,
	0x021b480c, 0x001b002a,
	0x021b4810, 0x0019002c,
	0x021b083c, 0x43240334,
	0x021b0840, 0x0324031a,
	0x021b483c, 0x43340344,
	0x021b4840, 0x03280276,
	0x021b0848, 0x44383A3E,
	0x021b4848, 0x3C3C3846,
	0x021b0850, 0x2e303230,
	0x021b4850, 0x38283E34,
	0x021b081c, 0x33333333,
	0x021b0820, 0x33333333,
	0x021b0824, 0x33333333,
	0x021b0828, 0x33333333,
	0x021b481c, 0x33333333,
	0x021b4820, 0x33333333,
	0x021b4824, 0x33333333,
	0x021b4828, 0x33333333,
	0x021b08c0, 0x24912249,
	0x021b48c0, 0x24914289,
	0x021b08b8, 0x00000800,
	0x021b48b8, 0x00000800,
	0x021b0004, 0x00020036,
	0x021b0008, 0x24444040,
	0x021b000c, 0x555A7955,
	0x021b0010, 0xFF320F64,
	0x021b0014, 0x01ff00db,
	0x021b0018, 0x00001740,
	0x021b001c, 0x00008000,
	0x021b002c, 0x000026d2,
	0x021b0030, 0x005A1023,
	0x021b0040, 0x00000027,
	0x021b0400, 0x14420000,
	0x021b0000, 0x831A0000,
	0x021b0890, 0x00400C58,
	0x00bb0008, 0x00000000,
	0x00bb000c, 0x2891E41A,
	0x00bb0038, 0x00000564,
	0x00bb0014, 0x00000040,
	0x00bb0028, 0x00000020,
	0x00bb002c, 0x00000020,
	0x021b001c, 0x04088032,
	0x021b001c, 0x00008033,
	0x021b001c, 0x00048031,
	0x021b001c, 0x09408030,
	0x021b001c, 0x04008040,
	0x021b0020, 0x00005800,
	0x021b0818, 0x00011117,
	0x021b4818, 0x00011117,
	0x021b0004, 0x00025576,
	0x021b0404, 0x00011006,
	0x021b001c, 0x00000000,
};

static int mx6dl_dcd_table[] = {
	0x020e0774, 0x000C0000,
	0x020e0754, 0x00000000,
	0x020e04ac, 0x00000030,
	0x020e04b0, 0x00000030,
	0x020e0464, 0x00000030,
	0x020e0490, 0x00000030,
	0x020e074c, 0x00000030,
	0x020e0494, 0x00000030,
	0x020e04a0, 0x00000000,
	0x020e04b4, 0x00000030,
	0x020e04b8, 0x00000030,
	0x020e076c, 0x00000030,
	0x020e0750, 0x00020000,
	0x020e04bc, 0x00000030,
	0x020e04c0, 0x00000030,
	0x020e04c4, 0x00000030,
	0x020e04c8, 0x00000030,
	0x020e04cc, 0x00000030,
	0x020e04d0, 0x00000030,
	0x020e04d4, 0x00000030,
	0x020e04d8, 0x00000030,
	0x020e0760, 0x00020000,
	0x020e0764, 0x00000030,
	0x020e0770, 0x00000030,
	0x020e0778, 0x00000030,
	0x020e077c, 0x00000030,
	0x020e0780, 0x00000030,
	0x020e0784, 0x00000030,
	0x020e078c, 0x00000030,
	0x020e0748, 0x00000030,
	0x020e0470, 0x00000030,
	0x020e0474, 0x00000030,
	0x020e0478, 0x00000030,
	0x020e047c, 0x00000030,
	0x020e0480, 0x00000030,
	0x020e0484, 0x00000030,
	0x020e0488, 0x00000030,
	0x020e048c, 0x00000030,
	0x021b0800, 0xa1390003,
	0x021b080c, 0x001F001F,
	0x021b0810, 0x001F001F,
	0x021b480c, 0x001F001F,
	0x021b4810, 0x001F001F,
	0x021b083c, 0x4220021F,
	0x021b0840, 0x0207017E,
	0x021b483c, 0x4201020C,
	0x021b4840, 0x01660172,
	0x021b0848, 0x4A4D4E4D,
	0x021b4848, 0x4A4F5049,
	0x021b0850, 0x3F3C3D31,
	0x021b4850, 0x3238372B,
	0x021b081c, 0x33333333,
	0x021b0820, 0x33333333,
	0x021b0824, 0x33333333,
	0x021b0828, 0x33333333,
	0x021b481c, 0x33333333,
	0x021b4820, 0x33333333,
	0x021b4824, 0x33333333,
	0x021b4828, 0x33333333,
	0x021b08b8, 0x00000800,
	0x021b48b8, 0x00000800,
	0x021b0004, 0x0002002D,
	0x021b0008, 0x00333030,
	0x021b000c, 0x3F435313,
	0x021b0010, 0xB66E8B63,
	0x021b0014, 0x01FF00DB,
	0x021b0018, 0x00001740,
	0x021b001c, 0x00008000,
	0x021b002c, 0x000026d2,
	0x021b0030, 0x00431023,
	0x021b0040, 0x00000027,
	0x021b0000, 0x831A0000,
	0x021b001c, 0x04008032,
	0x021b001c, 0x00008033,
	0x021b001c, 0x00048031,
	0x021b001c, 0x05208030,
	0x021b001c, 0x04008040,
	0x021b0020, 0x00005800,
	0x021b0818, 0x00011117,
	0x021b4818, 0x00011117,
	0x021b0004, 0x0002556D,
	0x021b0404, 0x00011006,
	0x021b001c, 0x00000000,
};

static void ddr_init(int *table, int size)
{
	int i;

	for (i = 0; i < size / 2 ; i++)
		writel(table[2 * i + 1], table[2 * i]);
}

static void spl_dram_init(void)
{
	if (is_mx6dq())
		ddr_init(mx6q_dcd_table, ARRAY_SIZE(mx6q_dcd_table));
	else if (is_mx6dqp())
		ddr_init(mx6qp_dcd_table, ARRAY_SIZE(mx6qp_dcd_table));
	else if (is_mx6sdl())
		ddr_init(mx6dl_dcd_table, ARRAY_SIZE(mx6dl_dcd_table));
}

void board_init_f(ulong dummy)
{
	/* DDR initialization */
	spl_dram_init();

	/* setup AIPS and disable watchdog */
	arch_cpu_init();

	ccgr_init();
	gpr_init();

	board_early_init_f();

	/* setup GP timer */
	timer_init();

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

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

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

#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
	if (is_mx6dq()) {
		if (!strcmp(name, "imx6q-sabresd"))
			return 0;
	} else if (is_mx6dqp()) {
		if (!strcmp(name, "imx6qp-sabresd"))
			return 0;
	} else if (is_mx6dl()) {
		if (!strcmp(name, "imx6dl-sabresd"))
			return 0;
	}

	return -1;
}
#endif